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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" article-type="research-article" dtd-version="1.1" xml:lang="zh" xsi:noNamespaceSchemaLocation="https://jats.nlm.nih.gov/publishing/1.1/xsd/JATS-journalpublishing1.xsd"><front><journal-meta><!-- 出版商赋予期刊ID--><journal-id journal-id-type="publisher-id">YIKE</journal-id><journal-title-group><!-- 期刊中文全称--><journal-title>安徽医科大学学报</journal-title><!-- 期刊英文全称--><journal-title xml:lang="en">Acta Universitatis Medicinalis Anhui</journal-title><!-- 期刊英文缩写--><abbrev-journal-title abbrev-type="publisher" xml:lang="en">Acta Universitatis Medicinalis Anhui</abbrev-journal-title><!-- 期刊中文缩写--><abbrev-journal-title abbrev-type="publisher">安徽医科大学学报</abbrev-journal-title></journal-title-group><!-- 期刊ISSN号--><issn pub-type="ppub">1000-1492</issn><!-- 期刊CN号--><issn pub-type="cn">34-1065/R</issn><publisher><!--出版商英文名称【预置实体】 待确认 --><publisher-name xml:lang="en">Anhui Lianzhong Printing Limited Company</publisher-name><!--出版商英文地址【预置实体】 --><publisher-loc xml:lang="en">Editorial Board of Acta Universitatis Medi-cinalis Anhui Meishan Road , Hefei 230032</publisher-loc><!-- 出版商中文名称【预置实体】--><publisher-name>《安徽医科大学学报》编辑部</publisher-name><!--出版商中文地址【预置实体】 --><publisher-loc>安徽省合肥市安徽医科大学校内老图书馆三楼</publisher-loc></publisher></journal-meta><article-meta><article-id pub-id-type="manuscript">V365施瑞</article-id><article-id pub-id-type="publisher-id">1000–1492（2026）06–1103–08</article-id><article-id pub-id-type="doi">10.19405/j.cnki.issn1000–1492.2026.06.016</article-id><article-categories><subj-group subj-group-type="clc"><subject>R 961</subject></subj-group><subj-group subj-group-type="dc"><subject>A</subject></subj-group><subj-group subj-group-type="heading"><subject>基础医学研究</subject></subj-group></article-categories><title-group><article-title>厚朴酚酯衍生物对顺铂诱导的急性肾损伤的作用及其初步机制研究</article-title><trans-title-group xml:lang="en"><trans-title>Study on the effect and mechanism of magnolol derivative on cisplatin-induced acute kidney injury</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name name-style="eastern"><surname>施</surname><given-names>瑞</given-names></name><name name-style="eastern" xml:lang="en"><surname>Shi</surname><given-names>Rui</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1">1</xref><xref ref-type="author-notes" rid="fna1"/></contrib><contrib contrib-type="author"><name-alternatives><name name-style="eastern"><surname>许</surname><given-names>浩宸</given-names></name><name name-style="eastern" xml:lang="en"><surname>Xu</surname><given-names>Haochen</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1">1</xref></contrib><contrib contrib-type="author"><name-alternatives><name name-style="eastern"><surname>彭</surname><given-names>杰</given-names></name><name name-style="eastern" xml:lang="en"><surname>Peng</surname><given-names>Jie</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1">1</xref></contrib><contrib contrib-type="author"><name-alternatives><name name-style="eastern"><surname>林</surname><given-names>王辉</given-names></name><name name-style="eastern" xml:lang="en"><surname>Lin</surname><given-names>Wanghui</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1">1</xref></contrib><contrib contrib-type="author"><name-alternatives><name name-style="eastern"><surname>王</surname><given-names>旭蕾</given-names></name><name name-style="eastern" xml:lang="en"><surname>Wang</surname><given-names>Xulei</given-names></name></name-alternatives><xref ref-type="aff" rid="aff2">2</xref></contrib><contrib contrib-type="author"><name-alternatives><name name-style="eastern"><surname>魏</surname><given-names>伟</given-names></name><name name-style="eastern" xml:lang="en"><surname>Wei</surname><given-names>Wei</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1">1</xref></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern"><surname>王</surname><given-names>春</given-names></name><name name-style="eastern" xml:lang="en"><surname>Wang</surname><given-names>Chun</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1">1</xref><xref ref-type="corresp" rid="cor1"/><xref ref-type="corresp" rid="cor3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern"><surname>徐</surname><given-names>丙发</given-names></name><name name-style="eastern" xml:lang="en"><surname>Xu</surname><given-names>Bingfa</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1">1</xref><xref ref-type="aff" rid="aff3">3</xref><xref ref-type="corresp" rid="cor2"/><xref ref-type="corresp" rid="cor4"/></contrib><aff-alternatives id="aff1"><aff><label>1</label><institution>安徽医科大学药学科学学院</institution>，<city>合肥</city>  <postal-code>230032</postal-code></aff><aff xml:lang="en"><label>1</label><institution>School of Pharmaceutical Sciences， Anhui Medical University</institution>，<city>Hefei</city>  <postal-code>230032</postal-code></aff></aff-alternatives><aff-alternatives id="aff2"><aff><label>2</label><institution>安徽医科大学实验动物中心</institution>，<city>合肥</city>  <postal-code>230032</postal-code></aff><aff xml:lang="en"><label>2</label><institution>Laboratory Animal Center， Anhui Medical University</institution>， <city>Hefei</city>  <postal-code>230032</postal-code></aff></aff-alternatives><aff-alternatives id="aff3"><aff><label>3</label><institution>安徽医科大学第三附属医院药学部</institution>，<city>合肥</city>  <postal-code>230061</postal-code></aff><aff xml:lang="en"><label>3</label><institution>Department of Pharmacy， The Third Affiliated Hospital of Anhui Medical University</institution>， <city>Hefei</city>    <postal-code>230061</postal-code></aff></aff-alternatives></contrib-group><author-notes><corresp id="cor1"><named-content content-type="corresp-name">王  春</named-content>，男，副教授，硕士生导师，通信作者，E-mail： <email>wangchun@ahmu.edu.cn</email>；</corresp><corresp id="cor2"><named-content content-type="corresp-name">徐丙发</named-content>，男，主任药师，硕士生导师，通信作者，E-mail： <email>zcandxbf@163.com</email></corresp><fn fn-type="other" specific-use="about-author" id="fna1"><p><named-content content-type="corresp-name">施  瑞</named-content>，男，硕士研究生；</p></fn><corresp id="cor3" xml:lang="en"><named-content content-type="corresp-name">Wang Chun</named-content>， E-mail： <email>wangchun@ahmu.edu.cn</email></corresp><corresp id="cor4" xml:lang="en"><named-content content-type="corresp-name">Xu Bingfa</named-content>， E-mail： <email>zcandxbf@163.com</email></corresp></author-notes><pub-date pub-type="epub" iso-8601-date="2026-05-12T09：18：53"><day>12</day><month>05</month><year>2026</year></pub-date><pub-date pub-type="ppub"><day>23</day><month>06</month><year>2026</year></pub-date><volume>61</volume><issue>6</issue><fpage>1103</fpage><lpage>1110</lpage><page-range>1103-1110</page-range><history><date date-type="revised"><day>13</day><month>03</month><year>2026</year></date></history><abstract abstract-type="key-points"><sec><title>目的</title><p>探究厚朴酚酯衍生物YW对顺铂（Cis）诱导的急性肾损伤（AKI）的保护作用，并探讨其对Cis诱导AKI的作用及初步机制。</p></sec><sec><title>方法</title><p>课题组以厚朴酚为母核设计合成了厚朴酚酯衍生物YW，采用分子对接技术预测YW与组蛋白乙酰转移酶7（KAT7）之间的结合作用。建立Cis诱导的C57BL/6J小鼠AKI模型，设置正常组、模型组、YW低中高剂量组（17.5、35、70 mg/kg）及阳性药氨磷汀组；检测各组小鼠血清肌酐（Scr）和尿素氮（BUN）水平以评估肾功能；通过肾组织HE染色进行病理学评分；采用蛋白质印迹法（WB）检测肾组织中肾损伤分子1（KIM-1）、KAT7及细胞周期蛋白依赖性激酶抑制剂1A（p21）的蛋白表达。使用不同浓度YW处理HK-2细胞，CCK-8法检测细胞活力；WB检测肾损伤标志物KIM-1、KAT7及其下游蛋白p21的表达水平；衰老相关β-半乳糖苷酶（SA-β-Gal）染色评估细胞衰老情况。</p></sec><sec><title>结果</title><p>YW可以与KAT7稳定结合。动物实验表明，与模型组相比，YW各剂量组，尤其是中、高剂量组，能明显降低AKI小鼠血清中升高的Scr和BUN水平（<italic>P</italic>&lt;0.001），有效改善肾组织病理损伤；YW能显著下调肾组织内KIM-1、KAT7及p21的蛋白表达水平（<italic>P</italic>&lt;0.05）；YW≤10 μmol/L浓度对HK-2细胞活力无显著影响，YW抑制Cis诱导的HK-2细胞活力下降（<italic>P</italic>&lt;0.05），并抑制Cis诱导的KIM-1、KAT7和p21蛋白的上调（<italic>P</italic>&lt;0.05），显著降低SA-β-Gal阳性细胞百分比（<italic>P</italic>&lt;0.01）。</p></sec><sec><title>结论</title><p>YW抑制Cis诱导AKI中的KAT7、p21蛋白表达及HK-2细胞活力下降，显著减轻HK-2细胞衰老，改善肾功能，为开发基于天然产物结构优化的AKI治疗策略提供了初步的实验依据。</p></sec></abstract><trans-abstract abstract-type="key-points" xml:lang="en"><sec><title>Objective</title><p>To investigate the protective effect of magnolol ester derivative YW against cisplatin （Cis）-induced acute kidney injury （AKI） and to explore its effect and preliminary mechanisms on Cis-induced AKI.</p></sec><sec><title>Methods</title><p>The research group designed and synthesized the magnolol ester derivative YW using magnolol as the parent core. Molecular docking was employed to predict the binding interaction between YW and lysine acetyltransferase 7 （KAT7）. A Cis-induced AKI model was established in C57BL/6J mice. Mice were divided into the normal control group， model group， YW low/medium/high dose groups （17.5， 35， 70 mg/kg）， and the positive control amifostine group. Renal function was assessed by measuring serum creatinine （Scr） and blood urea nitrogen （BUN） levels. Pathological changes were evaluated <italic>via</italic> HE staining and scoring of kidney tissues. Protein expression levels of kidney injury molecule 1 （KIM-1）， lysine acetyltransferase 7 （KAT7）， and cyclin-dependent kinase inhibitor 1A （p21） in kidney tissues were detected by Western blot （WB）. HK-2 cells were treated with different concentrations of YW； cell viability was measured by CCK-8 assay. WB was used to detect the expression levels of the renal injury marker KIM-1， KAT7， and its downstream protein p21. Cellular senescence was assessed by senescence-associated β-galactosidase （SA-β-Gal） staining.</p></sec><sec><title>Results</title><p>YW could stably bind to KAT7. <italic>In vivo</italic> experiments showed that， compared with the model group， all YW dose groups， especially the medium and high doses， significantly reduced the elevated levels of Scr and BUN in AKI mice （<italic>P</italic>&lt;0.001） and effectively ameliorated renal histopathological damage. YW significantly downregulated the protein expression levels of KIM-1， KAT7， and p21 in kidney tissues （<italic>P</italic>&lt;0.05）. Concentrations of YW≤10 μmol/L had no significant effect on HK-2 cell viability. YW inhibited the Cis-induced decline in HK-2 cell viability （<italic>P</italic>&lt;0.05）， suppressed the Cis-induced upregulation of KIM-1， KAT7， and p21 proteins （<italic>P</italic>&lt;0.05）， and significantly decreased the percentage of SA-β-Gal-positive cells （<italic>P</italic>&lt;0.01）.</p></sec><sec><title>Conclusion</title><p>YW suppresses the expression of KAT7 and p21 proteins and inhibits the decline in HK-2 cell viability in cisplatin-induced AKI， significantly mitigates HK-2 cell senescence， and improves renal function， providing preliminary experimental evidence for developing AKI treatment strategies based on structural optimization of natural products.</p></sec></trans-abstract><kwd-group kwd-group-type="author"><kwd>厚朴酚酯衍生物</kwd><kwd>顺铂</kwd><kwd>急性肾损伤</kwd><kwd>细胞衰老</kwd><kwd>KAT7</kwd><kwd>p21</kwd></kwd-group><kwd-group xml:lang="en" kwd-group-type="author"><kwd>magnolol ester derivative</kwd><kwd>cisplatin</kwd><kwd>acute kidney injury</kwd><kwd>cellular senescence</kwd><kwd>KAT7</kwd><kwd>p21</kwd></kwd-group><funding-group><award-group><funding-source>安徽省重点研究与开发计划项目</funding-source><award-id>2023s07020003</award-id></award-group><award-group><funding-source>安徽医科大学第三附属医院基础与临床合作研究提升计划培育专项项目</funding-source><award-id>2022sfy016</award-id></award-group><funding-statement>安徽省重点研究与开发计划项目（编号：2023s07020003）；安徽医科大学第三附属医院基础与临床合作研究提升计划培育专项项目（编号：2022sfy016）</funding-statement></funding-group><funding-group xml:lang="en"><award-group><funding-source>Key Research and Development Program of Anhui Province</funding-source><award-id>2023s07020003</award-id></award-group><award-group><funding-source>Cultivation Special Program for Basic and Clinical Collaborative Research Enhancement Project of The Third Affiliated Hospital of Anhui Medical University</funding-source><award-id>2022sfy016</award-id></award-group><funding-statement>Key Research and Development Program of Anhui Province （No. 2023s07020003）； Cultivation Special Program for Basic and Clinical Collaborative Research Enhancement Project of The Third Affiliated Hospital of Anhui Medical University （No. 2022sfy016）</funding-statement></funding-group><counts><fig-count count="6"/><table-count count="1"/><equation-count count="11"/><ref-count count="18"/><page-count count="8"/><word-count count="17032"/></counts><custom-meta-group><custom-meta><meta-name>version</meta-name><meta-value>1.0.0.25090</meta-value></custom-meta><custom-meta><meta-name>structure-time</meta-name><meta-value>2026-07-29T17:32:29</meta-value></custom-meta><custom-meta><meta-name>word-source</meta-name><meta-value>FX</meta-value></custom-meta></custom-meta-group></article-meta></front><body><p>顺铂（cisplatin，Cis）是临床一线抗实体瘤化疗药，常伴有显著肾毒性，极易诱发急性肾损伤（acute kidney injury， AKI），目前尚无有效治疗方法降低其发生率<sup>［<xref ref-type="bibr" rid="R1">1</xref>］</sup>。AKI的病理进程不仅涉及炎症与氧化应激，细胞衰老也发挥重要作用<sup>［<xref ref-type="bibr" rid="R2">2</xref>–<xref ref-type="bibr" rid="R3">3</xref>］</sup>。Cis可诱导肾小管上皮细胞衰老，进而阻碍组织修复并加剧肾功能恶化<sup>［<xref ref-type="bibr" rid="R4">4</xref>］</sup>。组蛋白乙酰转移酶7（lysineacetyltransferase 7，KAT7）是调控细胞衰老进程的关键因子，可通过表观遗传机制驱动细胞周期停滞<sup>［<xref ref-type="bibr" rid="R5">5</xref>］</sup>。现有KAT7抑制剂虽具有一定抗衰老作用，但在炎症调控方面效果有限，且治疗窗口较窄<sup>［<xref ref-type="bibr" rid="R6">6</xref>］</sup>。厚朴酚作为中药厚朴的主要活性成分，已被证实具有抗炎和肾保护潜能<sup>［<xref ref-type="bibr" rid="R7">7</xref>］</sup>。该研究基于课题组对厚朴酚结构进行定向修饰，设计合成了厚朴酚酯衍生物（代号：YW），旨在评估其对Cis诱导AKI的作用，并探讨其是否通过调控KAT7发挥作用，为将YW应用于AKI临床治疗提供初步的实验依据。</p><sec id="s1"><label>1</label><title>材料与方法</title><sec id="s1a"><label>1.1</label><title>主要试剂、细胞和仪器</title><p specific-use="noneIndent">厚朴酚（货号：528-43-8）、对甲基苯甲酸（货号：99-94-5）购自上海麦克林公司；GAPDH抗体（货号：AF7021）购自美国Affinity公司；肾损伤分子-1（kidney injury molecule-1，KIM-1）抗体（货号：30948-1-AP）、KAT7抗体（货号：13751-1-AP）、细胞周期蛋白依赖性激酶抑制剂 1A（cyclin-dependent kinase inhibitor 1A，p21）抗体（货号：10355-1-AP）、兔二抗（货号：SA00001-2）购自武汉三鹰生物技术有限公司；CCK-8试剂盒（货号：BMU106-CN）购自亚科因（武汉）生物技术有限公司；血尿素氮（blood urea nitrogen，BUN）试剂盒（货号：C013-2-1）、血肌酐（serum creatinine，Scr）试剂盒（货号：C011-2-1）购自南京建成生物工程研究所；衰老相关β-半乳糖苷酶（senescence-associated β-galactosidase，SA-β-Gal）试剂盒（货号：C0602）购自上海碧云天生物技术有限公司；人肾小管上皮细胞HK-2（human kidney-2）购自武汉普诺赛科技公司。正置荧光显微镜（型号：DM48）购自德国Leica公司；全波长多功能酶标仪（型号：Infinite M1000 PRO）购自瑞士Tecan公司；艾本德离心机（型号：Centrifuge 5810）购自德国Eppendorf公司。</p></sec><sec id="s1b"><label>1.2</label><title>实验动物</title><p specific-use="noneIndent">36只6周龄SPF级雄性C57BL/6J小鼠，体质量20~21 g，购于杭州子源实验动物科技有限公司［许可证编号：SCXK（浙）2024-004］，饲养于SPF级动物房。实验方案经安徽医科大学临床药理研究所伦理委员会批准，伦理批准编号：PZ-2024-024。</p></sec><sec id="s1c"><label>1.3</label><title>实验方法</title><sec id="s1c1"><label>1.3.1</label><title>分子对接</title><p specific-use="noneIndent">采用分子对接技术预测YW与KAT7之间的结合作用。首先，从蛋白质结构数据库网站下载KAT7的晶体结构，存为pdbqt格式。随后对蛋白质结构进行预处理，包括提取原始配体小分子作为参考、去除水分子、添加氢原子并优化侧链氨基酸的质子化状态，以得到适用于分子对接的、能量最低的稳定三维结构。同时，从ChemDraw软件中画出YW的二维化学结构式，并将其导入Discovery Studio 2021（DS 2021）中，进行能量最小化处理和三维结构优化，以获得其最稳定的构象，并准备好作为对接配体。在DS 2021中，将预处理后的KAT7蛋白结构设置为受体，YW分子设置为配体，定义活性口袋。采用CDOCKER对接算法进行分子对接模拟，计算YW与KAT7蛋白之间的结合模式和亲和力。</p></sec><sec id="s1c2"><label>1.3.2</label><title>动物模型的建立</title><p specific-use="noneIndent">将36只C57BL/6J小鼠在SPF级动物房适应性喂养一周。Cis用无菌生理盐水配制成20 mg/kg，单次腹腔注射Cis诱导AKI动物模型，随机将小鼠分为正常组、模型组、YW低剂量组（17.5 mg/kg YW）、YW中剂量组（35 mg/kg YW）、YW高剂量组（70 mg/kg YW）、阳性药氨磷汀组（200 mg/kg）<sup>［<xref ref-type="bibr" rid="R8">8</xref>］</sup>。对照组和模型组小鼠分别腹腔注射生理盐水与Cis，各YW给药组在造模前4 d开始灌胃给药，正常组和模型组给予等量的溶媒，连续给药7 d。</p></sec><sec id="s1c3"><label>1.3.3</label><title>组织样本的收集</title><p specific-use="noneIndent">Cis给药72 h后，剪除小鼠胡须，将小鼠麻醉，通过眼球取血法收集血液样本，然后将小鼠脱颈处死后剖开小鼠腹腔，分离两侧肾脏组织。左侧肾经生理盐水冲洗并用滤纸吸干后，置于4%多聚甲醛溶液中固定，以备后续石蜡包埋、切片及HE染色。右侧肾脏置于<italic>-</italic>80 ℃冰箱中冷冻备用。</p></sec><sec id="s1c4"><label>1.3.4</label><title>生化指标的检测</title><p specific-use="noneIndent">采集的血液样本于室温下静置2 h，随后在4 ℃条件下以3 500 r/min离心15 min，收集上清液即为血清。按照Scr和BUN试剂盒说明书操作，依次向待测样品中加入相应试剂，并使用酶标仪测定其吸光度值。根据公式计算出血液中的Scr和BUN浓度。剩余的血清样本则保存于<italic>-</italic>80 ℃冰箱，以备后续使用。</p></sec><sec id="s1c5"><label>1.3.5</label><title>肾脏HE染色</title><p specific-use="noneIndent">石蜡包埋的小鼠肾组织切片经60 ℃烘箱脱蜡后，使用二甲苯与系列浓度乙醇进行梯度水化，PBS漂洗后进行HE染色（苏木精10 min，伊红2 min）。染色切片经梯度乙醇脱水后在组织切片边缘滴加中性树脂在盖玻片周围封片，利用组织原位细胞扫描分析系统随机采集3个视野，以评估肾组织炎症浸润和肾小管损伤情况并进行病理学评分，肾小管损伤程度（0%～100%），评分0～4分<sup>［<xref ref-type="bibr" rid="R9">9</xref>］</sup>。</p></sec><sec id="s1c6"><label>1.3.6</label><title>HK-2细胞的培养与分组</title><p specific-use="noneIndent">实验开始前配制YW溶液，取3.84 mg的YW，使用100 μL的DMSO溶液溶解，得到终浓度为100 mmol/L的母液，用0.22 μm滤膜过滤，<italic>-</italic>20 ℃保存。将HK-2细胞培养于含10%胎牛血清的高糖DMEM培养基，放置于条件为37 ℃、5%CO<sub>2</sub>的培养箱。将细胞随机分为：NC组、Cis组（10 μmol/L Cis）、Cis+YW（10 μmol/L Cis +2.5 μmol/L YW）组、Cis+YW（10 μmol/L Cis +5 μmol/L YW）组、Cis+YW（10 μmol/L Cis +10 μmol/L YW）组、Cis+YW（10 μmol/L Cis +20 μmol/L YW）组、Cis+YW（10 μmol/L Cis +40 μmol/L YW）组后同步化培养，Cis诱导在YW预处理2 h后加入培养基，检查各组指标变化，并收集数据。</p></sec><sec id="s1c7"><label>1.3.7</label><title>CCK-8实验</title><p specific-use="noneIndent">将HK-2细胞按照1×10<sup>4</sup>个/孔接种于96孔板中过夜培养，让细胞贴壁，空白组加入新鲜培养基90 μL，对照组更换不含药物的等量新鲜培养基，实验组更换含不同浓度YW的新鲜培养基干预36 h，进行对应处理后，每孔加入10 μL CCK-8溶液，避光处理，在37 ℃、5%CO<sub>2</sub>环境中孵育2 h，用酶标仪在 450 nm 波长下测量每孔的吸光度值，记录实验结果并计算细胞活力。</p></sec><sec id="s1c8"><label>1.3.8</label><title>Western blot实验</title><p specific-use="noneIndent">取小鼠肾脏组织，于冰上分离肾皮质。精确称取约50 mg组织，置于预冷的1.5 mL离心管中，随后加入500 μL预冷的RIPA裂解液（含1 ℃蛋白酶抑制剂）。使用组织研磨仪均质研磨2 min，4 ℃静置20 min后，于4 ℃、12 000 r/min离心20 min。离心后，吸取上清液至新离心管中，并按上清液体积的1/4加入蛋白上样缓冲液。100 ℃金属浴煮10 min使蛋白质变性得到蛋白样本，所得样品于<italic>-</italic>80 ℃保存备用。收集Cis及药物干预后的HK-2细胞，提取细胞总蛋白并进行蛋白定量，等量蛋白样品进行电泳分离，通过湿转法将有目的蛋白区域的胶转移至聚偏二氟乙烯膜上，用无蛋白快速封闭液封闭15 min后，将膜与按说明书推荐比例配制的KIM-1、KAT7、p21一抗工作液在4 °C下孵育过夜。兔二抗用5%脱脂奶粉按1∶10 000稀释并室温孵育2 h。用化学发光成像仪显影，并使用ImageJ软件进行蛋白条带定量分析。</p></sec><sec id="s1c9"><label>1.3.9</label><title>SA-β-Gal染色</title><p specific-use="noneIndent">将HK-2细胞以每孔1×10<sup>5</sup>个细胞密度接种在6孔板中培养24 h，分组给药36 h后按照SA-β-Gal试剂盒说明书进行染色操作，用正置显微镜拍摄记录其结果，计算并统计阳性染色率。</p></sec></sec><sec id="s1d"><label>1.4</label><title>统计学处理</title><p specific-use="noneIndent">用GraphPad Prism 10.0软件进行统计分析。数值结果以<inline-formula><alternatives><mml:math id="M1"><mml:mover accent="true"><mml:mi>x</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math><graphic specific-use="big" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M001.jpg"><?fx-imagestate width="1.77800000" height="2.62466669"?></graphic><graphic specific-use="small" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M001c.jpg"><?fx-imagestate width="1.77800000" height="2.62466669"?></graphic></alternatives></inline-formula><italic>±s</italic>表示，两组间比较采用独立样本<italic>t</italic>检验，多组间均数比较采用单因素方差分析。<italic>P</italic>&lt;0.05为差异有统计学意义。</p></sec></sec><sec id="s2"><label>2</label><title>结果</title><sec id="s2a"><label>2.1</label><title>分子对接模拟YW与KAT7的结合作用</title><p specific-use="noneIndent">分子对接技术预测YW与KAT7之间的潜在结合作用。对接结果如<xref ref-type="fig" rid="F1">图1</xref>显示，YW与KAT7蛋白之间的结合能为<italic>-</italic>103.131 3 kcal/moL，YW分子能够嵌入KAT7的活性口袋中，并形成稳定的氢键、疏水相互作用等关键结合模式，表明两者之间具有较强的结合亲和力，提示YW可以与KAT7稳定结合。</p><fig position="float" id="F1"><object-id pub-id-type="doi">10.19405/j.cnki.issn1000–1492.2026.06.001.F001</object-id><label>图1</label><caption><title>分子对接模拟YW与KAT7的结合作用</title></caption><abstract abstract-type="caption" xml:lang="en"><label>Fig.1</label><title>Molecular docking simulation of YW binding to KAT7</title></abstract><abstract abstract-type="note"><p>A： Molecular structure and chemical formula of YW； B： Three-dimensional structure diagram of YW and KAT7 protein docking； C： Two-dimensional structure diagram of the interaction between YW and KAT7 protein.</p></abstract><alternatives><graphic specific-use="print" xlink:href="media/DA3D66A7-B2F8-41ed-929B-E31399B1330D-F001.eps" id="Graphic1"><?fx-imagestate width="167.21667480" height="58.20833588"?></graphic><graphic specific-use="big" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-F001.jpg"><?fx-imagestate width="167.21667480" height="58.20833588"?></graphic><graphic specific-use="small" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-F001c.jpg"><?fx-imagestate width="167.21667480" height="58.20833588"?></graphic></alternatives></fig></sec><sec id="s2b"><label>2.2</label><title>YW给药后对Cis-AKI小鼠生化指标的影响</title><p specific-use="noneIndent">结果显示，与正常组相比，造模72 h后的小鼠血清中Scr和BUN水平均明显升高（<italic>t</italic>=14.33、18.53， 均<italic>P</italic>&lt;0.001），提示AKI小鼠肾功能出现明显异常。与AKI模型组相比较，YW三个剂量给药组、氨磷汀给药组能降低肾损伤小鼠Scr水平（<italic>t</italic>=9.11、11.95、12.31、13.69， 均<italic>P</italic>&lt;0.001）和BUN水平（<italic>t</italic>=6.55、8.48、10.68、11.80， <italic>P</italic>&lt;0.01），提示YW给药组对Cis-AKI模型所致肾损伤具有明确的保护作用。见<xref ref-type="table" rid="T1">表1</xref>。</p><table-wrap id="T1"><object-id pub-id-type="doi">10.19405/j.cnki.issn1000–1492.2026.06.001.T001</object-id><label>表1</label><caption><p>YW给药后对Cis-AKI小鼠生化指标的影响 （<inline-formula><alternatives><mml:math id="M2"><mml:mover accent="true"><mml:mi>x</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math><graphic specific-use="big" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic><graphic specific-use="small" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002c.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic></alternatives></inline-formula><italic>±s</italic>，<italic>n=</italic>6）</p></caption><abstract abstract-type="caption" xml:lang="en"><label>Tab.1</label><title>The effects of YW administration on biochemical indicators in Cis-AKI mice （<inline-formula><alternatives><mml:math id="M3"><mml:mover accent="true"><mml:mi>x</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math><graphic specific-use="big" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic><graphic specific-use="small" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002c.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic></alternatives></inline-formula><italic>±s</italic>，<italic>n=</italic>6）</title></abstract><alternatives><table id="Table1"><thead><tr><th align="left" style="border-top:solid;border-bottom:solid;">Detection index</th><th align="center" style="border-top:solid;border-bottom:solid;">Normal</th><th align="center" style="border-top:solid;border-bottom:solid;">Model</th><th align="center" style="border-top:solid;border-bottom:solid;"><p>YW</p><p>（17.5 mg/kg）</p></th><th align="center" style="border-top:solid;border-bottom:solid;"><p>YW</p><p>（35 mg/kg）</p></th><th align="center" style="border-top:solid;border-bottom:solid;"><p>YW</p><p>（70 mg/kg）</p></th><th align="center" style="border-top:solid;border-bottom:solid;">Amifostine</th></tr></thead><tbody><tr align="center"><td align="left">Scr （µmol/L）</td><td align="center">7.57±2.64</td><td align="center">139.39±22.38<sup>###</sup></td><td align="center">42.56±13.32<sup>***</sup></td><td align="center">26.13±6.17<sup>***</sup></td><td align="center">17.96±6.17<sup>***</sup></td><td align="center">12.91±3.36<sup>***</sup></td></tr><tr align="center"><td align="left" style="border-bottom:solid;">BUN （mmol/L）</td><td align="center" style="border-bottom:solid;">10.86±1.11</td><td align="center" style="border-bottom:solid;">30.65±2.37<sup>###</sup></td><td align="center" style="border-bottom:solid;">21.94±8.34<sup>**</sup></td><td align="center" style="border-bottom:solid;">16.34±6.16<sup>***</sup></td><td align="center" style="border-bottom:solid;">15.04±5.64<sup>***</sup></td><td align="center" style="border-bottom:solid;">13.80±2.56<sup>***</sup></td></tr></tbody></table><graphic specific-use="big" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-T001.jpg"><?fx-imagestate width="169.79997253" height="18.42808342"?></graphic><graphic specific-use="small" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-T001c.jpg"><?fx-imagestate width="169.79997253" height="18.42808342"?></graphic></alternatives><table-wrap-foot><fn><p><sup>###</sup><italic>P</italic>&lt;0.001 <italic>vs</italic> Normal group； <sup>**</sup><italic>P</italic>&lt;0.01，<sup>***</sup><italic>P</italic>&lt;0.001 <italic>vs</italic> Model group.</p></fn></table-wrap-foot></table-wrap></sec><sec id="s2c"><label>2.3</label><title>YW给药后对Cis-AKI小鼠肾脏病理影响</title><p>HE染色显示正常组小鼠肾组织肾小管、肾小球形态结构完整，未见相关病理改变。与正常组相比，Cis-AKI模型组可见严重的炎症细胞浸润、肾小球萎缩、肾小管坏死等，病理评分明显增加（<italic>t</italic>=19.76， <italic>P</italic>&lt;0.001），各剂量YW给药组均可以不同程度地改善上述组织病理学表现（<italic>t</italic>=3.97、8.72、10.06、12.47， 均<italic>P</italic>&lt;0.05）。见<xref ref-type="fig" rid="F2">图2</xref>。</p><fig position="float" id="F2"><object-id pub-id-type="doi">10.19405/j.cnki.issn1000–1492.2026.06.001.F002</object-id><label>图2</label><caption><title>YW给药后对Cis-AKI小鼠肾组织HE染色及病理评分图 （<inline-formula><alternatives><mml:math id="M4"><mml:mover accent="true"><mml:mi>x</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math><graphic specific-use="big" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic><graphic specific-use="small" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002c.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic></alternatives></inline-formula><italic>±s</italic>，<italic>n=</italic>6）</title></caption><abstract abstract-type="caption" xml:lang="en"><label>Fig.2</label><title>HE staining and pathological scoring ofrenal tissues in the Cis-AKI mouse after YW treatment （<inline-formula><alternatives><mml:math id="M5"><mml:mover accent="true"><mml:mi>x</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math><graphic specific-use="big" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic><graphic specific-use="small" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002c.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic></alternatives></inline-formula><italic>±s</italic>，<italic>n=</italic>6）</title></abstract><abstract abstract-type="note"><p>B： HE pathological score map of mouse kidney tissue； <sup>###</sup><italic>P</italic>&lt;0.001 <italic>vs</italic> Normal group； <sup>*</sup><italic>P</italic>&lt;0.05， <sup>**</sup><italic>P</italic>&lt;0.01， <sup>***</sup><italic>P</italic>&lt;0.001 <italic>vs</italic> Model group.</p></abstract><alternatives><graphic specific-use="print" xlink:href="media/DA3D66A7-B2F8-41ed-929B-E31399B1330D-F002.jpg" id="Graphic2"><?fx-imagestate width="154.61294556" height="98.57063293"?></graphic><graphic specific-use="big" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-F002.jpg"><?fx-imagestate width="154.61294556" height="98.57063293"?></graphic><graphic specific-use="small" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-F002c.jpg"><?fx-imagestate width="154.61294556" height="98.57063293"?></graphic></alternatives></fig></sec><sec id="s2d"><label>2.4</label><title>YW给药后对Cis-AKI小鼠模型肾组织中KIM-1、KAT7及p21蛋白表达的影响</title><p specific-use="noneIndent">Western blot实验结果如<xref ref-type="fig" rid="F3">图3</xref>显示，与正常组相比，Cis-AKI模型组上调了肾脏组织中KIM-1、KAT7及p21蛋白的表达水平（<italic>t</italic>=9.47、20.64、9.48， 均<italic>P</italic>&lt;0.001），表明Cis成功诱导了AKI衰老相关通路的激活。与Cis-AKI模型组相比，YW各给药组肾脏组织中KIM-1（<italic>t</italic>=2.89、4.24、6.42， 均<italic>P</italic>&lt;0.05）、KAT7（<italic>t</italic>=6.24、14.89、17.73， 均<italic>P</italic>&lt;0.05）及p21（<italic>t</italic>=5.01、6.20、8.12， 均<italic>P</italic>&lt;0.01）蛋白的表达水平均下调，提示YW给药组对Cis-AKI模型肾损伤具有明确的保护作用。</p><fig position="float" id="F3"><object-id pub-id-type="doi">10.19405/j.cnki.issn1000–1492.2026.06.001.F003</object-id><label>图3</label><caption><title>YW下调Cis-AKI小鼠中肾组织KIM-1、KAT7及p21蛋白的表达（<inline-formula><alternatives><mml:math id="M6"><mml:mover accent="true"><mml:mi>x</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math><graphic specific-use="big" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic><graphic specific-use="small" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002c.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic></alternatives></inline-formula><italic>±s</italic>，<italic>n=</italic>3）</title></caption><abstract abstract-type="caption" xml:lang="en"><label>Fig.3</label><title>YW suppressed the expression of KIM-1， KAT7， and p21 proteins in renal tissue of the Cis-AKI mouse （<inline-formula><alternatives><mml:math id="M7"><mml:mover accent="true"><mml:mi>x</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math><graphic specific-use="big" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic><graphic specific-use="small" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002c.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic></alternatives></inline-formula><italic>±s</italic>，<italic>n=</italic>3）</title></abstract><alternatives><graphic specific-use="print" xlink:href="media/DA3D66A7-B2F8-41ed-929B-E31399B1330D-F003.jpg" id="Graphic3"><?fx-imagestate width="169.79998779" height="88.39382172"?></graphic><graphic specific-use="big" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-F003.jpg"><?fx-imagestate width="169.79998779" height="88.39382172"?></graphic><graphic specific-use="small" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-F003c.jpg"><?fx-imagestate width="169.79998779" height="88.39382172"?></graphic></alternatives></fig></sec><sec id="s2e"><label>2.5</label><title>YW给药对Cis诱导的HK-2细胞损伤的影响</title><p specific-use="noneIndent">以一定浓度梯度（2.5、5、10、20、40 μmol/L）的厚朴酚酯衍生物YW干预HK-2细胞36 h，加入CCK-8试剂，检测结果显示（<xref ref-type="fig" rid="F5">图4</xref>A），当浓度≤10 μmol/L时，YW对HK-2细胞活力几乎无影响，而当浓度≥20 μmol/L时，YW显著抑制细胞活力（<italic>t</italic>=19.65、31.20， 均<italic>P</italic>&lt;0.001）；Cis能降低HK-2细胞活力（<italic>t</italic>=27.61、11.62、16.96， 均<italic>P</italic>&lt;0.001），而YW可以抑制Cis诱导的HK-2细胞活力下降（<italic>t</italic>=7.25， <italic>P</italic>&lt;0.05）（<xref ref-type="fig" rid="F5">图4</xref>B）。</p><fig position="float" id="F5"><object-id pub-id-type="doi">10.19405/j.cnki.issn1000–1492.2026.06.001.F005</object-id><label>图4</label><caption><title>YW给药对Cis诱导的HK-2细胞损伤的影响 （<inline-formula><alternatives><mml:math id="M8"><mml:mover accent="true"><mml:mi>x</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math><graphic specific-use="big" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic><graphic specific-use="small" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002c.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic></alternatives></inline-formula><italic>±s</italic>，<italic>n=</italic>3）</title></caption><abstract abstract-type="caption" xml:lang="en"><label>Fig.4</label><title>The effects of YW on Cis-induced HK-2 cell injury （<inline-formula><alternatives><mml:math id="M9"><mml:mover accent="true"><mml:mi>x</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math><graphic specific-use="big" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic><graphic specific-use="small" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002c.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic></alternatives></inline-formula><italic>±s</italic>，<italic>n=</italic>3）</title></abstract><abstract abstract-type="note"><p>A： The effects of YW on HK-2 cell viability； B： The effects of YW on Cis-induced HK-2 cell viability； <sup>***</sup><italic>P</italic>&lt;0.001 <italic>vs</italic> YW （0 μmol/L） group； <sup>###</sup><italic>P</italic>&lt;0.001 <italic>vs</italic> Normal group； <sup>&amp;</sup><italic>P</italic>&lt;0.05， <sup>&amp;&amp;</sup><italic>P</italic>&lt;0.01， <sup>&amp;&amp;&amp;</sup><italic>P</italic>&lt;0.001 <italic>vs</italic> Cis group.</p></abstract><alternatives><graphic specific-use="print" xlink:href="media/DA3D66A7-B2F8-41ed-929B-E31399B1330D-F005.eps" id="Graphic4"><?fx-imagestate width="64.20555115" height="117.82777405"?></graphic><graphic specific-use="big" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-F005.jpg"><?fx-imagestate width="64.20555115" height="117.82777405"?></graphic><graphic specific-use="small" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-F005c.jpg"><?fx-imagestate width="64.20555115" height="117.82777405"?></graphic></alternatives></fig></sec><sec id="s2f"><label>2.6</label><title>YW给药后对Cis诱导的HK-2细胞KIM-1、KAT7及p21蛋白表达的影响</title><p specific-use="noneIndent">Western blot实验结果显示（图5），Cis诱导明显上调了HK-2细胞中KIM-1、KAT7及p21蛋白的表达水平（<italic>t</italic>=12.87、12.39、21.95， 均<italic>P</italic>&lt;0.001），表明Cis成功诱导了HK-2细胞衰老相关通路的激活，而2.5、5、10 μmol/L YW干预36 h后，均下调了Cis诱导的HK-2细胞中KIM-1（<italic>t</italic>=3.90、3.98、11.20， <italic>P</italic>&lt;0.05）、KAT7（<italic>t</italic>=3.37、4.93、13.02， 均<italic>P</italic>&lt;0.05）及p21（<italic>t</italic>=4.00、7.56、8.84， 均<italic>P</italic>&lt;0.05）蛋白的表达。结果表明YW能够有效缓解Cis诱导的HK-2细胞衰老，对HK-2细胞具有保护作用。</p><fig position="float" id="F4"><object-id pub-id-type="doi">10.19405/j.cnki.issn1000–1492.2026.06.001.F004</object-id>  <label>图5</label><caption><title>YW 给药后对Cis 诱导的HK-2 细胞SA-β-Gal 染色情况（<inline-formula><alternatives><mml:math id="M10"><mml:mover accent="true"><mml:mi>x</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math><graphic specific-use="big" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic><graphic specific-use="small" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002c.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic></alternatives></inline-formula><italic>±s</italic>，<italic>n=</italic>3）</title></caption><abstract abstract-type="caption" xml:lang="en"><label>Fig.5</label><title>The effects of YW administration on SA-β-Gal staining in Cis-induced HK-2 cells（<inline-formula><alternatives><mml:math id="M11"><mml:mover accent="true"><mml:mi>x</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math><graphic specific-use="big" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic><graphic specific-use="small" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002c.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic></alternatives></inline-formula><italic>±s</italic>，<italic>n=</italic>3）</title></abstract>  <alternatives><graphic specific-use="print" xlink:href="media/111.jpg" id="Graphic5"><?fx-imagestate width="168.98052979" height="106.89167786"?></graphic><graphic specific-use="big" xlink:href="alternativeImage/111.jpg"><?fx-imagestate width="168.98052979" height="106.89167786"?></graphic><graphic specific-use="small" xlink:href="alternativeImage/111.jpg"><?fx-imagestate width="168.98052979" height="106.89167786"?></graphic></alternatives></fig></sec><sec id="s2g"><label>2.7</label><title>YW给药后对Cis诱导的HK-2细胞SA-<bold>β</bold>-Gal染色的影响</title><p specific-use="noneIndent">通过SA-β-Gal染色检测HK-2细胞β-半乳糖苷酶活性，结果如<xref ref-type="fig" rid="F6">图6</xref>显示，与对照组相比，Cis诱导后HK-2细胞β-半乳糖苷酶活性明显增强，细胞蓝染率高于正常组（<italic>t</italic>=38.53， <italic>P</italic>&lt;0.001），表明Cis组中衰老阳性细胞百分比较正常组增加。与Cis组相比，2.5、5、10 μmol/L YW给药组衰老阳性细胞百分比减少（<italic>t</italic>=8.88、11.62、17.13， 均<italic>P</italic>&lt;0.01），表明YW能够有效改善Cis诱导的HK-2细胞衰老阳性细胞百分比，从而改善HK-2细胞的衰老。</p><fig position="float" id="F6"><object-id pub-id-type="doi">10.19405/j.cnki.issn1000–1492.2026.06.001.F006</object-id><label>图6</label><caption><title>YW给药后对Cis诱导的HK-2细胞SA-<bold>β</bold>-Gal染色情况 （<inline-formula><alternatives><mml:math id="M10"><mml:mover accent="true"><mml:mi>x</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math><graphic specific-use="big" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic><graphic specific-use="small" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002c.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic></alternatives></inline-formula><italic>±s</italic>，<italic>n=</italic>3）</title></caption><abstract abstract-type="caption" xml:lang="en"><label>Fig.6</label><title>The effects of YW administration on SA-<bold>β</bold>-Gal staining in Cis-induced HK-2 cells （<inline-formula><alternatives><mml:math id="M11"><mml:mover accent="true"><mml:mi>x</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math><graphic specific-use="big" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic><graphic specific-use="small" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-M002c.jpg"><?fx-imagestate width="1.35466671" height="2.03200006"?></graphic></alternatives></inline-formula><italic>±s</italic>，<italic>n=</italic>3）</title></abstract><alternatives><graphic specific-use="print" xlink:href="media/DA3D66A7-B2F8-41ed-929B-E31399B1330D-F006.jpg" id="Graphic6"><?fx-imagestate width="153.45831299" height="112.88890839"?></graphic><graphic specific-use="big" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-F006.jpg"><?fx-imagestate width="153.45831299" height="112.88890839"?></graphic><graphic specific-use="small" xlink:href="alternativeImage/DA3D66A7-B2F8-41ed-929B-E31399B1330D-F006c.jpg"><?fx-imagestate width="153.45831299" height="112.88890839"?></graphic></alternatives></fig></sec></sec><sec id="s3"><label>3</label><title>讨论</title><p>AKI是一种以肾功能急剧下降为特征的临床综合征，其发病率高且与慢性肾脏疾病（chronic kidney disease，CKD）进展、心血管事件风险增加密切相关，构成重大的公共卫生负担<sup>［<xref ref-type="bibr" rid="R10">10</xref>］</sup>。Cis因在肾小管上皮细胞蓄积，诱发DNA损伤、线粒体功能障碍、氧化应激及炎症反应，导致细胞凋亡与坏死，其剂量依赖性肾毒性严重限制了抗肿瘤疗效的应用<sup>［<xref ref-type="bibr" rid="R11">11</xref>］</sup>。尽管其肾毒性机制已被部分阐明，但临床上除水化、利尿等支持疗法外，仅有氨磷汀等极少数保护剂被批准使用，且因其自身毒性及有限的疗效，临床应用存在显著局限<sup>［<xref ref-type="bibr" rid="R12">12</xref>］</sup>。因此，寻找有效的靶点和探索靶向小分子治疗药物具有重要的意义。</p><p>近年来，细胞衰老在AKI发病机制中的作用备受关注。衰老细胞通过分泌表型引发慢性炎症和促纤维化微环境，从而阻碍组织修复并促使AKI向CKD转变<sup>［<xref ref-type="bibr" rid="R13">13</xref>］</sup>。Cis作为常见的AKI诱导模型，通过直接引起肾小管上皮细胞的DNA损伤、线粒体功能障碍及大量活性氧产生，激活p53/p21等衰老核心信号通路，导致细胞周期阻滞，从而诱发急性细胞衰老<sup>［<xref ref-type="bibr" rid="R14">14</xref>］</sup>。p21作为p53下游关键的细胞周期蛋白依赖性激酶抑制因子，是执行细胞周期G<sub>1</sub>期停滞的核心效应分子<sup>［<xref ref-type="bibr" rid="R15">15</xref>］</sup>。KIM-1在受损肾小管上皮细胞中特异性高表达，既是AKI早期诊断标志物，也通过参与凋亡细胞吞噬和促炎信号放大来加剧肾损伤<sup>［<xref ref-type="bibr" rid="R16">16</xref>］</sup>。</p><p>KAT7作为近年来通过基因组CRISPR筛选发现的衰老驱动因子，通过组蛋白H3第14位赖氨酸乙酰化（H3K14），激活包括p21在内的多个细胞周期抑制基因的转录，主导衰老程序的启动<sup>［<xref ref-type="bibr" rid="R17">17</xref>］</sup>。本研究显示，在Cis诱导的AKI中，KAT7与p21、KIM-1同步上调，而天然产物厚朴酚的酯化衍生物YW可能通过靶向KAT7抑制肾小管上皮细胞衰老，从而发挥治疗作用。</p><p>在AKI的治疗药物探索中，源于中药的天然产物因其多靶点、低毒性的特点展现出巨大潜力。厚朴酚虽具有抗炎等药理作用，但受限于水溶性差、生物利用度低、代谢快及靶点不特异等缺陷，需通过结构优化以推动其临床应用<sup>［<xref ref-type="bibr" rid="R18">18</xref>］</sup>。课题组前期研究通过对厚朴酚进行定向酯化修饰，设计并合成了厚朴酚酯衍生物YW。本研究以此为契机，探究其对Cis诱导AKI的保护作用，以KAT7为靶点进行分子对接，预测YW可以与KAT7进行稳定结合。在体外，YW在≤10 μmol/L时对HK-2细胞无明显毒性，且能够抑制Cis诱导的HK-2细胞活力下降，并下调Cis诱导的HK-2细胞中KAT7、p21及KIM-1蛋白表达，显著降低SA-β-Gal阳性细胞比例。在体内，其能显著降低AKI模型小鼠血清中急剧升高的Scr和BUN水平，有效改善Cis导致的肾小管扩张、坏死、管型形成及炎症细胞浸润。这表明YW能够缓解细胞衰老进程，从而减轻组织损伤。</p><p>综上所述，本研究明确揭示了YW对Cis诱导AKI具有保护作用及阐明KAT7介导的细胞衰老是Cis肾毒性的关键病理环节，证实YW可能通过抑制KAT7有效阻断AKI进展，为将YW开发为一种通过抑制肾小管细胞衰老缓解AKI的新型AKI治疗药物提供初步的实验依据与理论支撑，但其具体机制仍需通过验证KAT7/p21通路、明确YW与KAT7的直接结合以及评估体内药代动力学与长期安全性来进一步阐明。</p></sec></body><back><ref-list><title>参考文献</title><ref id="R1"><label>1</label><mixed-citation publication-type="journal" publication-format="print" xml:lang="en"><person-group><name name-style="eastern"><surname>Gupta</surname><given-names>S</given-names></name>， <name name-style="eastern"><surname>Glezerman</surname><given-names>I G</given-names></name>， <name name-style="eastern"><surname>Hirsch</surname><given-names>J S</given-names></name>， <etal>et al</etal></person-group>. <article-title>Intravenous magnesium and cisplatin-associated acute kidney injury</article-title>［J］. <source>JAMA 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