Article(id=1308841023112044879, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1308840985296204417, articleNumber=null, orderNo=null, doi=10.16438/j.0513-4870.2025-1066, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1757260800000, receivedDateStr=2025-09-08, revisedDate=1766332800000, revisedDateStr=2025-12-22, acceptedDate=null, acceptedDateStr=null, onlineDate=1789981616999, onlineDateStr=2026-09-21, pubDate=1778515200000, pubDateStr=2026-05-12, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1789981616999, onlineIssueDateStr=2026-09-21, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1789981616999, creator=13701087609, updateTime=1789981616999, updator=13701087609, issue=Issue{id=1308840985296204417, tenantId=1146029695717560320, journalId=1189982191388893191, year='2026', volume='61', issue='5', pageStart='1435', pageEnd='1880', issueExtLink='null', onlineDate='null', pubDate='1778515200000', pubDateStr='2026-05-12', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1789981607984, creator='13701087609', updateTime=1789984207975, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1308851890515968861, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1308840985296204417, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1308851890515968862, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1308840985296204417, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1498, endPage=1512, ext={EN=ArticleExt(id=1308841023300788560, articleId=1308841023112044879, tenantId=1146029695717560320, journalId=1189982191388893191, language=EN, title=Research progress on SARS-CoV-2 inhibitors targeting papain-like protease, columnId=1190335348648547107, journalTitle=Acta Pharmaceutica Sinica, columnName=Reviews, runingTitle=null, highlight=null, articleAbstract=
Papain-like protease (PLpro or PLP) is a key non-structural protein in the replication process of coronaviruses. It is responsible for the cleavage and processing of viral polyproteins, and has deubiquitination and deISGylation activities, which can inhibit the host's innate immune response. Due to the high conservation of PLpro among various coronaviruses such as SARS-CoV-2, SARS-CoV, and MERS-CoV, it has become an important target for the development of broad-spectrum coronavirus inhibitors. Since the outbreak of the COVID-19 pandemic, research on PLpro has advanced rapidly, and multiple classes of candidate molecules with clear structures and definite mechanisms have been identified, including non-covalent inhibitors (e.g., GRL0617 and its derivatives), covalent inhibitors (e.g., vinyl ester compounds), and inhibitors derived from natural products. This article reviews the research progress of PLpro-targeted inhibitors, covering their structural characteristics, activity data, mechanism of action, and discovery strategies, aiming to provide theoretical support and design ideas for the development of broad-spectrum anti-coronavirus drugs.
, authors=Xiang-han BAI, Bing YE, Le-tian SONG, Peng ZHAN
*, Xin-yong LIU
*, authorsList=Xiang-han BAI, Bing YE, Le-tian SONG, Peng ZHAN, Xin-yong LIU, authorCompany=null, correspAuthors=Peng ZHAN, Xin-yong LIU, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2026 Acta Pharmaceutica Sinica. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1308841026819809635, articleId=1308841023112044879, tenantId=1146029695717560320, journalId=1189982191388893191, language=CN, title=靶向木瓜样蛋白酶的SARS-CoV-2抑制剂的研究进展, columnId=1190335349655180086, journalTitle=药学学报, columnName=综述, runingTitle=null, highlight=null, articleAbstract=
木瓜样蛋白酶(papain-like protease, PLpro或PLP) 是冠状病毒复制过程中关键的非结构蛋白, 负责病毒多聚蛋白的剪切加工, 并具有去泛素化(deubiquitination) 和去ISG15化(deISGylation) 活性, 可抑制宿主的天然免疫反应。由于PLpro在SARS-CoV-2、SARS-CoV、MERS-CoV等多种冠状病毒中高度保守, 已成为开发广谱冠状病毒抑制剂的重要靶点。新冠疫情暴发以来, 针对PLpro的研究迅速推进, 已发现多类结构明确、机制清晰的候选分子, 包括非共价抑制剂(如GRL0617及其衍生物)、共价抑制剂(如乙烯酯类化合物) 及天然产物来源的抑制剂。本文综述了以PLpro为靶点的抑制剂研究进展, 涵盖其结构特征、活性数据、作用机制与发现策略, 旨在为广谱抗冠状病毒药物的研发提供理论支持和设计思路。
, authors=柏祥寒, 叶冰, 宋乐天, 展鹏
*, 刘新泳
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作者贡献:
柏祥寒负责图片的绘制、论文的撰写与修改; 叶冰、宋乐天负责文章的修改与校对; 展鹏、刘新泳负责文章整体架构和的审核。
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pro and PL
pro with molecular dynamics simulations [J]. Nat Prod Bioprospect, 2025, 15: 3., articleTitle=null, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1308841027037913444, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841023112044879, xref=null, ext=[AuthorCompanyExt(id=1308841027046302053, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841023112044879, companyId=1308841027037913444, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Key Laboratory of Chemical Biology Ministry of Education, Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China), AuthorCompanyExt(id=1308841027054690662, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841023112044879, companyId=1308841027037913444, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=山东大学药学院药物化学研究所, 化学生物学教育部重点实验室, 山东 济南 250012)])], figs=[ArticleFig(id=1308841030775038346, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841023112044879, language=EN, label=null, caption=null, figureFileSmall=2E9nRAK1nsoNVt1gmbutUA==, figureFileBig=dSICxxpUuBdbdch8z2tcHg==, tableContent=null), ArticleFig(id=1308841030842147211, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841023112044879, language=CN, label=Fig.1, caption=
Genomic composition, life cycle, and PLpro domain architecture of SARS-CoV-2. A: Genomic composition of SARS-CoV-2; B: The life cycle of SARS-CoV-2; C: Domains of SARS-CoV-2 PLpro: Ub-like (residues 1-61), thumb (62-178), fingers (179-240), and palm (241-315) (PDB code: 6WZU); D: Location of the catalytic triad: Cys111 (yellow), His272 (blue), and Asp286 (red), figureFileSmall=2E9nRAK1nsoNVt1gmbutUA==, figureFileBig=dSICxxpUuBdbdch8z2tcHg==, tableContent=null), ArticleFig(id=1308841031047668108, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841023112044879, language=EN, label=null, caption=null, figureFileSmall=L8pvlGDUJDin6W4wulPlcQ==, figureFileBig=feOcyloDEpDgg0+MvMFLKw==, tableContent=null), ArticleFig(id=1308841031173497229, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841023112044879, language=CN, label=Fig.2, caption=
Chemical structures of compounds 1-7, figureFileSmall=L8pvlGDUJDin6W4wulPlcQ==, figureFileBig=feOcyloDEpDgg0+MvMFLKw==, tableContent=null), ArticleFig(id=1308841031265771918, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841023112044879, language=EN, label=null, caption=null, figureFileSmall=1wCdag7KeETkLVYlJZSZuA==, figureFileBig=H7uUlHY9eyxx+ZVYsFwGhA==, tableContent=null), ArticleFig(id=1308841031362240911, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841023112044879, language=CN, label=Fig.3, caption=
Binding modes of compounds 1, 5, 17, 19 and 20. A: Schematic representation of the binding mode of GRL0617 (navy blue) with SARS-CoV-2 PLpro (PDB code: 7CJM), with key amino acid residues shown in pink. Hydrogen bonds are depicted as yellow dashed lines, and π-π interactions are shown as green dashed lines; B: Superposition of the XR8-24 (navy blue) and SARS-CoV-2 PLpro complex structure, with a salt bridge depicted as a magenta dashed line (PDB code: 7LBS); C: Cocrystal structure of GZNL-P35 (a precursor compound to GZNL-P36, navy blue) in complex with SARS-CoV-2 PLpro (PDB code: 8YX5). Hydrogen bonds are shown as yellow dashed lines, and π-π interactions are depicted as orange dashed lines; D: Atomic-level model of the Jun12682 (navy blue) binding site in SARS-CoV-2 PLpro (PDB code: 8UOB). Hydrogen bonds are shown as yellow dashed lines, van der Waals forces as red dashed lines, and π-π interactions as light green dashed lines; E: Key protein-ligand interactions of SARS-CoV-2 PLpro with PF-07957472 (PDB code: 9CSY), figureFileSmall=1wCdag7KeETkLVYlJZSZuA==, figureFileBig=H7uUlHY9eyxx+ZVYsFwGhA==, tableContent=null), ArticleFig(id=1308841031441932688, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841023112044879, language=EN, label=null, caption=null, figureFileSmall=l+T8BGCMhDnHftwE8S4MoQ==, figureFileBig=KvlNcSQEgUHjjeYWN2sYVg==, tableContent=null), ArticleFig(id=1308841031534207377, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841023112044879, language=CN, label=Fig.4, caption=
Chemical structures of compounds 8-40, figureFileSmall=l+T8BGCMhDnHftwE8S4MoQ==, figureFileBig=KvlNcSQEgUHjjeYWN2sYVg==, tableContent=null), ArticleFig(id=1308841031605510546, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841023112044879, language=EN, label=null, caption=null, figureFileSmall=uOPVb8/tBXeCr4VYtAURTw==, figureFileBig=ie3J2mAiKO+teyJENtlPqg==, tableContent=null), ArticleFig(id=1308841031672619411, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841023112044879, language=CN, label=Fig.5, caption=
Binding modes of compounds 24, 26, 41, 48. A: Surface representation of the SARS-CoV-2 PLpro in complex with 24 (cyan sticks) (PDB code: 7E35), demonstrating that 24 is situated within the channel preceding the catalytic site of the PLpro domain; B: Binding mode of 24 within the two asymmetric PLpro units (Chain A, green; Chain B, pink); C: Co-crystal structures of BiSCoE-Rf1.200 4 PLpro in complex with GRL0617 and compound 26, respectively (PDB codes: 7SKQ, 7SKR); D: Crystal structure of the SARS-CoV-2 PLproC111S-YM155 complex, revealing three bound molecules of YM155 (depicted as cyan sticks) (PDB code: 7D7L); E: Crystal structure of the SARS-CoV-2 PLpro-PF complex at 2.7 Å resolution. An enlarged view of the fragment shows two proflavine molecules within the substrate-recognition pocket of PLpro (PDB code: 7NT4), figureFileSmall=uOPVb8/tBXeCr4VYtAURTw==, figureFileBig=ie3J2mAiKO+teyJENtlPqg==, tableContent=null), ArticleFig(id=1308841031739728276, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841023112044879, language=EN, label=null, caption=null, figureFileSmall=rnoFoghtO15h6BMjNUyTmg==, figureFileBig=Q0gZ5hekzaOl2CT9q+CkZA==, tableContent=null), ArticleFig(id=1308841031798448533, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841023112044879, language=CN, label=Fig.6, caption=
Chemical structures of compounds 41-52, figureFileSmall=rnoFoghtO15h6BMjNUyTmg==, figureFileBig=Q0gZ5hekzaOl2CT9q+CkZA==, tableContent=null), ArticleFig(id=1308841031869751702, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841023112044879, language=EN, label=null, caption=null, figureFileSmall=G245PzJZSsmDnN58kWYy5A==, figureFileBig=daMOA9YElSnjMuZBL9d7+A==, tableContent=null), ArticleFig(id=1308841031970414999, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841023112044879, language=CN, label=Fig.7, caption=
Chemical structures of compounds 53-64 and design strategy of compounds 59-61, figureFileSmall=G245PzJZSsmDnN58kWYy5A==, figureFileBig=daMOA9YElSnjMuZBL9d7+A==, tableContent=null), ArticleFig(id=1308841032058495384, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841023112044879, language=EN, label=null, caption=null, figureFileSmall=QI8xfd9sTAKGOgiKN1LvWQ==, figureFileBig=XWw/5BcMqarR6SuYvNn1Zg==, tableContent=null), ArticleFig(id=1308841032133992857, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841023112044879, language=CN, label=Fig.8, caption=
Co-crystal structures of compounds 53-55 and 62 with SARS-CoV-2 PLpro. A: Co-crystal structure of SARS-CoV-2 PLpro in complex with VIR250 (Cys111 is depicted in pink, and the formed thioether linkage is shown in yellow; PDB code: 6WUU); B: Co-crystal structure of SARS-CoV-2 PLpro in complex with VIR251 (Cys111 is depicted in pink, and the formed covalent bond is shown in yellow; PDB code: 6WX4); C: Co-crystal structure of SARS-CoV-2 PLpro in complex with compound 55 (PDB code: 8EUA); D: Co-crystal structure of compound 59 in complex with SARS-CoV-2 PLpro (PDB code: 8IHO); E: Co-crystal structure of SARS-CoV-2 PLpro in complex with Jun13567 (PDB code: 9D2K), figureFileSmall=QI8xfd9sTAKGOgiKN1LvWQ==, figureFileBig=XWw/5BcMqarR6SuYvNn1Zg==, tableContent=null), ArticleFig(id=1308841032222073242, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841023112044879, language=EN, label=null, caption=null, figureFileSmall=/qw4MtlF+FNXPLTAYXQH5w==, figureFileBig=jAJ9/gWoSkNDC9kCfmsEdQ==, tableContent=null), ArticleFig(id=1308841032305959323, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1308841023112044879, language=CN, label=Fig.9, caption=
Chemical structures of the nine investigated natural biflavonoids, including sydowiol B and violaceol Ⅰ, figureFileSmall=/qw4MtlF+FNXPLTAYXQH5w==, figureFileBig=jAJ9/gWoSkNDC9kCfmsEdQ==, tableContent=null)], attaches=null, journal=Journal(id=1189982048455397383, delFlag=0, nameCn=药学学报, nameEn=Acta Pharmaceutica Sinica, nameHistory1=null, nameHistory2=null, issn=0513-4870, eissn=null, cn=11-2163/R, coden=null, periodic=0, language=CN, oaType=null, ccby=null, superviseOffice=null, ownerOffice=null, pubOffice=null, editorOffice=null, officeType=null, aims=null, clcCode=null, officeProv=null, officeCity=null, officeAddr=null, officeZip=null, officeEmail=null, officePhone=null, editDirector=null, officeDirector=null, officeDirectorPhone=null, officeStaffNum=null, officeEmpNum=null, coverPicUrl=BTxjudbJDVO4PqdBR6On6Q==, journalPrice=null, startedYear=null, abbrevIsoEn=null, journalRemark=null, publicationField=null, createdTime=1761643429151, updatedTime=1788948913902, createdBy=18614031015, 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