Article(id=1195741159625634530, tenantId=1146029695717560320, journalId=1190317699101192196, issueId=1195741158056964822, articleNumber=1001-2494(2024)04-0338-08, orderNo=null, doi=10.11669/cpj.2024.04.007, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1673798400000, receivedDateStr=2023-01-16, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1763016508251, onlineDateStr=2025-11-13, pubDate=1708531200000, pubDateStr=2024-02-22, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1763016508251, onlineIssueDateStr=2025-11-13, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1763016508251, creator=13701087609, updateTime=1763016508251, updator=13701087609, issue=Issue{id=1195741158056964822, tenantId=1146029695717560320, journalId=1190317699101192196, year='2024', volume='59', issue='4', pageStart='285', pageEnd='374', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1763016507876, creator=13701087609, updateTime=1763016622263, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1195741637893730663, tenantId=1146029695717560320, journalId=1190317699101192196, issueId=1195741158056964822, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1195741637893730664, tenantId=1146029695717560320, journalId=1190317699101192196, issueId=1195741158056964822, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=338, endPage=345, ext={EN=ArticleExt(id=1195741159818572516, articleId=1195741159625634530, tenantId=1146029695717560320, journalId=1190317699101192196, language=EN, title=Rapid Screening of Lucidin-DNA Adducts Based on LC-MS/MS, columnId=null, journalTitle=Chinese Pharmaceutical Journal, columnName=null, runingTitle=null, highlight=null, articleAbstract=
OBJECTIVE To develop a generalized “discovery-confirmation” strategy for DNA adducts based on liquid chromatography-triple quadrupole mass spectrometry (LC-QQQ-MS) and liquid chromatography-high resolution mass spectrometry (LC-HRMS), study the direct and metabolic reactivity of the potentially genotoxic substance lucidin (Luc) with three 2'-deoxynucleosides in Rubia cordifolia L., and screen and confirm possible Luc-specific DNA adducts. METHODS Three 2'-deoxynucleosides with the same fragmentation pathways with DNA adducts in mass spectrometry were used to develop and optimize a non-targeted screening method for unknown DNA adducts in QQQ-MS neutral loss and pseudo-neutral loss scanning modes, as well as a confirmatory method for adduct targeting in HRMS data-dependent scanning mode. Luc was incubated with 2'-deoxynucleoside under phase I metabolically activated and inactivated conditions, respectively, and the resulting specific DNA adducts were screened and then structurally verified by characteristic MS spectra of fragmentations. RESULTS The optimized pseudo-neutral loss scanning is sensitive to the detection of deoxyribonucleoside deglycosylation at the pg·mL-1 level. Six Luc-DNA adducts, containing two 2'-deoxycytidine (dC) adducts, two 2'-deoxyadenosine (dA) adducts, and two 2'-deoxyguanosine (dG) adducts, were identified and confirmed in vitro incubation model of Luc and 2'-deoxynucleoside, and their structures were characterized. Luc-DNA adduct production increased with increasing Luc exposure and exposure time, and there were significant dose-response and time-response relationships, and the binding did not require metabolic activation to occur. CONCLUSION The established discovery-confirmation strategy for DNA adducts is highly sensitive and accurate. It can provide structural information of the adducts at the molecular level. This is suitable for the assessment of DNA damage caused by the presence of Luc and provides strong data support for the study and re-evaluation of its toxicity mechanism. It also offers an important methodological reference for the rapid screening of potential genotoxic components in Chinese herbal medicines.
, correspAuthors=HUANG Qing, YUAN Yaozuo, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, 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, authorCompany=null, fund=null, authors=null, authorsList=YANG Jing, WANG Shenxing, WANG Dan, WU Chunyong, HUANG Qing, YUAN Yaozuo), CN=ArticleExt(id=1195741487095918675, articleId=1195741159625634530, tenantId=1146029695717560320, journalId=1190317699101192196, language=CN, title=基于液相色谱-质谱技术的芦西丁-DNA加合物快速筛查研究, columnId=1190352405612040510, journalTitle=中国药学杂志, columnName=论著, runingTitle=null, highlight=null, articleAbstract=
目的 建立基于液相色谱-三重四级杆质谱(LC-QQQ-MS)及液相色谱-高分辨质谱(LC-HRMS)技术的DNA加合物通用型“发现-确证”分析策略,研究茜草中潜在遗传毒性物质芦西丁(lucidin,Luc)与3种2'-脱氧核苷的直接反应性和代谢反应性,筛查和确证可能的Luc特异性DNA加合物。方法 采用与DNA加合物具有相同质谱碎裂模式的3种2'-脱氧核苷,建立和优化三重四极杆质谱中性丢失和伪中性丢失扫描模式下未知DNA加合物的非靶向筛查方法,以及高分辨数据依赖性扫描模式下的加合物靶向确证方法。将Luc与2'-脱氧核苷在Ⅰ相代谢激活和未激活条件下分别孵育,筛查生成的特异性DNA加合物,再通过特征性质谱碎裂离子进行结构验证。结果 优化后的伪中性丢失扫描对脱氧核苷脱糖基的检测灵敏度可达pg·mL-1级别。在Luc与脱氧核苷体外孵育模型中,发现并确证了6种Luc-DNA加合物,包含2种2'-脱氧胞苷(dC)加合物、2种2'-脱氧腺苷(dA)加合物、2种2'-脱氧鸟苷(dG)加合物,并对其结构进行了表征。Luc-DNA加合物的生成随着Luc暴露量、暴露时间的增加而升高,存在显著的剂量-反应、时间-反应关系,且该种结合无需代谢激活即可发生。结论 所建立的DNA加合物“发现-确证”策略灵敏度高、准确性好,能够提供分子水平上加合物的结构信息,适用于评估Luc暴露所致的DNA损伤,为其毒性机理研究和再评价提供了有力数据支持,也为中草药中潜在遗传毒性成分快速筛查提供了重要的方法参考。
, correspAuthors=黄青, 袁耀佐, authorNote=null, correspAuthorsNote=
*黄青,女,博士,主任药师 研究方向:药物分析与药物质量控制 Tel:(025)86251121;
袁耀佐,男,博士,主任药师 研究方向:药物分析与药物质量控制 Tel:(025)86251120
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杨静,女,硕士研究生 研究方向:药物分析与质量控制
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1 School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
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1 南京中医药大学药学院, 南京 210023
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2 Jiangsu Institute for Food and Drug Control, Nanjing 210019, China
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2 江苏省食品药品监督检验研究院, 南京 210019
3 中国药科大学药学院, 南京 211198, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1197101917026431805, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1195741159625634530, xref=2, ext=[AuthorCompanyExt(id=1197101917034820414, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1195741159625634530, companyId=1197101917026431805, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1 南京中医药大学药学院, 南京 210023
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DNA加合物在质谱中的特征碎裂模式 dR-2'-脱氧核糖;Base-核碱基;X-化学修饰。
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MS scan strategy of DNA adducts A-neutral loss scanning in QQQ-MS for discovery; B-pseudo-neutral loss scanning in QQQ-MS for discovery; C-data-dependent scanning in HRMS for confirmation.
, figureFileSmall=6+LsSwdn5Jig4Z4RwNFijw==, figureFileBig=zDfEK7Git8fmujY+leveDQ==, tableContent=null), ArticleFig(id=1197101919673037683, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1195741159625634530, language=CN, label=图3, caption=
DNA加合物的质谱扫描策略 A-串联四极杆质谱中性丢失扫描发现策略;B-串联四极杆质谱伪中性丢失扫描发现策略;C-高分辨质谱数据依赖性扫描确证策略。
, figureFileSmall=6+LsSwdn5Jig4Z4RwNFijw==, figureFileBig=zDfEK7Git8fmujY+leveDQ==, tableContent=null), ArticleFig(id=1197101919723369332, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1195741159625634530, language=EN, label=Fig.4, caption=
EIC spectra of the sample incubated with Luc and 2'-deoxynucleoside(Luc-DNA) in the pseudo-neutral loss scanning mode A-m/z 480.1→364.1; B-m/z 504.1→388.1; C-m/z 520.1→404.1.
, figureFileSmall=ZKDbGRQOX6+bYEuiLGMgWA==, figureFileBig=/nBz0rTX5IRouBjds+RLEQ==, tableContent=null), ArticleFig(id=1197101919832421237, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1195741159625634530, language=CN, label=图4, caption=
伪中性丢失扫描模式下芦西丁与脱氧核苷孵育样品(Luc-DNA)的EIC图 A-m/z 480.1→364.1; B-m/z 504.1→388.1; C-m/z 520.1→404.1。
, figureFileSmall=ZKDbGRQOX6+bYEuiLGMgWA==, figureFileBig=/nBz0rTX5IRouBjds+RLEQ==, tableContent=null), ArticleFig(id=1197101919891141494, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1195741159625634530, language=EN, label=Fig.5, caption=
MS/MS spectra and identification of Luc-DNA adducts A-identification of Luc-dC addduct 1/2; B-identification of Luc-dA addduct 1/2; C-identification of Luc-dG addduct 1/2.
, figureFileSmall=GkxkeaJyX8jiOSH9P/aLAQ==, figureFileBig=A79zQaAR6s3fuDYVnfycAw==, tableContent=null), ArticleFig(id=1197101919945667447, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1195741159625634530, language=CN, label=图5, caption=
Luc-DNA加合物的二级质谱图及结构鉴定 A-Luc-dC 1/2加合物鉴定;B-Luc-dA 1/2加合物鉴定;C-Luc-dG1/2加合物鉴定。
, figureFileSmall=GkxkeaJyX8jiOSH9P/aLAQ==, figureFileBig=A79zQaAR6s3fuDYVnfycAw==, tableContent=null), ArticleFig(id=1197101920008582008, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1195741159625634530, language=EN, label=Fig.6, caption=
Substrate concentration dependence of Luc-DNA adduct generation in phase I metabolism. n=3,$ \bar{x} \pm s$ 1) P<0.01, compared with 5 μmol·L-1 lucidin group.
, figureFileSmall=HiaI5dLOJ49ltLbWtFgRcw==, figureFileBig=Q/L21gI22GAlgjqBMI0DDA==, tableContent=null), ArticleFig(id=1197101920084079481, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1195741159625634530, language=CN, label=图6, caption=
Ⅰ相代谢反应体系下Luc-DNA加合物生成的底物浓度依赖性. n=3,$ \bar{x} \pm s$ 与5 μmol·L-1Luc浓度组比较,1) P<0.01。
, figureFileSmall=HiaI5dLOJ49ltLbWtFgRcw==, figureFileBig=Q/L21gI22GAlgjqBMI0DDA==, tableContent=null), ArticleFig(id=1197101920146994042, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1195741159625634530, language=EN, label=Fig.7, caption=
Incubation time dependence of Luc-DNA adduct generation and in phase Ⅰ metabolism. n=3,$ \bar{x} \pm s$, figureFileSmall=TZw0BI1D1Zykg+SormgvFA==, figureFileBig=aE/f0ixbPP8NUfX4A6OG1Q==, tableContent=null), ArticleFig(id=1197101920214102907, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1195741159625634530, language=CN, label=图7, caption=
Ⅰ相代谢反应体系下Luc-DNA加合物生成的孵育时间依赖性. n=3,$ \bar{x} \pm s$, figureFileSmall=TZw0BI1D1Zykg+SormgvFA==, figureFileBig=aE/f0ixbPP8NUfX4A6OG1Q==, tableContent=null), ArticleFig(id=1197101920306377596, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1195741159625634530, language=EN, label=Tab.1, caption=
Comparison of sensitivity of 2'-deoxynucleosides in different scanning modes
, figureFileSmall=null, figureFileBig=null, tableContent=
| Compound | Sensitivity | Fold change |
Neutral loss scanning | Pseudo-neutral loss scanning/pg·mL-1 |
| dC | 1.25 ng·mL-1 | 19.53 | 64 |
| dA | 156.25 pg·mL-1 | 1.22 | 128 |
| dG | 1.25 ng·mL-1 | 9.77 | 128 |
), ArticleFig(id=1197101920386069373, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1195741159625634530, language=CN, label=表1, caption=
不同扫描模式对脱氧核苷的检测灵敏度比较
, figureFileSmall=null, figureFileBig=null, tableContent=
| Compound | Sensitivity | Fold change |
Neutral loss scanning | Pseudo-neutral loss scanning/pg·mL-1 |
| dC | 1.25 ng·mL-1 | 19.53 | 64 |
| dA | 156.25 pg·mL-1 | 1.22 | 128 |
| dG | 1.25 ng·mL-1 | 9.77 | 128 |
), ArticleFig(id=1197101920461566846, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1195741159625634530, language=EN, label=Tab.2, caption=
Identification of Luc-DNA adduct
, figureFileSmall=null, figureFileBig=null, tableContent=
| Compound | Formula | tR/min | m/z(Calculated) | m/z(Observed) | δ/×10-6 | m/z(MS/MS fragments) |
| Luc-dC 1 adduct | C24H21N3O8 | 31.84 | 480.140 1 | 480.140 8 | 1.46 | 364.092 8 [M+H-116]+,253.048 8 [X+H]+,112.050 9 [Base+H]+ |
| Luc-dC 2 adduct | C24H21N3O8 | 33.96 | 480.140 1 | 480.140 0 | -0.21 | 364.093 0 [M+H-116]+,253.049 6 [X+H]+,112.051 0 [Base+H]+ |
| Luc-dA 1 adduct | C25H21N5O7 | 32.34 | 504.151 4 | 504.151 8 | 0.79 | 388.104 1 [M+H-116]+,253.049 2 [X+H]+,136.061 9 [Base+H]+ |
| Luc-dA 2 adduct | C25H21N5O7 | 36.68 | 504.151 4 | 504.151 6 | -0.13 | 388.104 3 [M+H-116]+,253.049 6 [X+H]+,136.062 0 [Base+H]+ |
| Luc-dG 1 adduct | C25H21N5O8 | 31.99 | 520.146 3 | 520.146 8 | 0.10 | 404.099 1 [M+H-116]+, 253.049 6 [X+H]+,152.056 8 [Base+H]+ |
| Luc-dG 2 adduct | C25H21N5O8 | 33.74 | 520.146 3 | 520.146 3 | 0.00 | 404.099 3 [M+H-116]+, 253.049 5 [X+H]+,152.056 8 [Base+H]+ |
), ArticleFig(id=1197101920528675711, tenantId=1146029695717560320, journalId=1190317699101192196, articleId=1195741159625634530, language=CN, label=表2, caption=
Luc-DNA加合物的鉴定结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| Compound | Formula | tR/min | m/z(Calculated) | m/z(Observed) | δ/×10-6 | m/z(MS/MS fragments) |
| Luc-dC 1 adduct | C24H21N3O8 | 31.84 | 480.140 1 | 480.140 8 | 1.46 | 364.092 8 [M+H-116]+,253.048 8 [X+H]+,112.050 9 [Base+H]+ |
| Luc-dC 2 adduct | C24H21N3O8 | 33.96 | 480.140 1 | 480.140 0 | -0.21 | 364.093 0 [M+H-116]+,253.049 6 [X+H]+,112.051 0 [Base+H]+ |
| Luc-dA 1 adduct | C25H21N5O7 | 32.34 | 504.151 4 | 504.151 8 | 0.79 | 388.104 1 [M+H-116]+,253.049 2 [X+H]+,136.061 9 [Base+H]+ |
| Luc-dA 2 adduct | C25H21N5O7 | 36.68 | 504.151 4 | 504.151 6 | -0.13 | 388.104 3 [M+H-116]+,253.049 6 [X+H]+,136.062 0 [Base+H]+ |
| Luc-dG 1 adduct | C25H21N5O8 | 31.99 | 520.146 3 | 520.146 8 | 0.10 | 404.099 1 [M+H-116]+, 253.049 6 [X+H]+,152.056 8 [Base+H]+ |
| Luc-dG 2 adduct | C25H21N5O8 | 33.74 | 520.146 3 | 520.146 3 | 0.00 | 404.099 3 [M+H-116]+, 253.049 5 [X+H]+,152.056 8 [Base+H]+ |
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