Article(id=1193523097824358715, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1193523095437799732, articleNumber=null, orderNo=null, doi=10.16438/j.0513-4870.2024-0884, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1725897600000, receivedDateStr=2024-09-10, revisedDate=1730304000000, revisedDateStr=2024-10-31, acceptedDate=null, acceptedDateStr=null, onlineDate=1762487681108, onlineDateStr=2025-11-07, pubDate=1739289600000, pubDateStr=2025-02-12, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1762487681108, onlineIssueDateStr=2025-11-07, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1762487681108, creator=13701087609, updateTime=1762487681108, updator=13701087609, issue=Issue{id=1193523095437799732, tenantId=1146029695717560320, journalId=1189982191388893191, year='2025', volume='60', issue='2', pageStart='245', pageEnd='532', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1762487680538, creator=13701087609, updateTime=1764224912893, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1200809576107987438, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1193523095437799732, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1200809576107987439, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1193523095437799732, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=388, endPage=396, ext={EN=ArticleExt(id=1193523098071822654, articleId=1193523097824358715, tenantId=1146029695717560320, journalId=1189982191388893191, language=EN, title=Therapeutic effect of anti-PD-L1&CXCR4 bispecific nanobody combined with gemcitabine in synergy with PBMC on pancreatic cancer treatment, columnId=1190335348761793317, journalTitle=Acta Pharmaceutica Sinica, columnName=Original Articles, runingTitle=null, highlight=null, articleAbstract=
Pancreatic cancer is a kind of highly malignant tumor with a low survival rate and poor prognosis. The effectiveness of gemcitabine as a first-line chemotherapy drug is limited; however, it can activate dendritic cells and improve antigen presentation which increase the sensitivity of tumor cell to immunotherapy. Although immunotherapy has made some advancements in cancer treatment, the therapeutic benefit of programmed cell death receptor 1/programmed death receptor-ligand 1 (PD-1/PD-L1) blockade therapy remains relatively low. The chemokine C-X-C chemokine ligand 12 (CXCL12) contributes to an immunosuppressive tumor microenvironment by recruiting immunosuppressive cells. The receptor C-X-C motif chemokine receptor 4 (CXCR4), highly expressed in various tumors including pancreatic cancer, plays a crucial role in tumor development and progression. In this study, the anti-tumor immune response of human peripheral blood mononuclear cell (hPBMC) was enhanced using the combination of BsNb PX4 (anti-PD-L1&CXCR4 bispecific nanobody) and gemcitabine. In a co-culture system of gemcitabine-pretreated hPBMCs with tumor cells, the BsNb PX4 synergized gemcitabine to improve the cytotoxic activity of hPBMCs against tumor cells. Flow cytometry analysis confirmed increased ratio of CD8+ to CD4+ T cells in combination treatment. In NOD/SCID mice bearing pancreatic cancer, the combination treatment exhibited more infiltration of CD8+ T cells into tumor tissues, contributing to an effective anti-tumor response. This study presents potential new therapies for the treatment of pancreatic cancer. Ethical approval was obtained for collection of hPBMC samples from the Local Ethics Committee of Shanghai Jiao Tong University. All animal experiments were approved by the Animal Ethic Committee of Shanghai Jiao Tong University (authorizing number: A2024246).
, correspAuthors=Ming-yuan WU, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2025 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, authorCompany=null, fund=null, authors=null, authorsList=Hai HU, Shu-yi XU, Yue-jiang ZHENG, Jian-wei ZHU, Ming-yuan WU), CN=ArticleExt(id=1193523439936959464, articleId=1193523097824358715, tenantId=1146029695717560320, journalId=1189982191388893191, language=CN, title=双特异性anti-PD-L1&CXCR4纳米抗体联合吉西他滨协同PBMC对胰腺癌治疗作用的探究, columnId=1190335348896011050, journalTitle=药学学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=
胰腺癌是一种高度恶性的肿瘤, 生存率低, 预后极差。一线化疗药物吉西他滨单药治疗效果有限, 但在杀伤肿瘤细胞的同时可以活化树突状细胞, 促进抗原提呈, 提高肿瘤对免疫疗法的敏感性。免疫疗法在肿瘤治疗中取得了一定进展, 但程序性细胞死亡受体-1 (programmed cell death protein 1, PD-1)/程序性死亡受体配体-1 (programmed death receptor-ligand 1, PD-L1) 免疫检查点疗法临床响应率仍较低。C-X-C趋化因子配体12 (C-X-C chemokine ligand 12, CXCL12) 能够募集免疫抑制细胞, 形成免疫抑制的肿瘤微环境, 其受体C-X-C趋化因子受体4 (C-X-C motif chemokine receptor 4, CXCR4) 在胰腺癌等多种肿瘤中高表达, 参与肿瘤的发生发展及侵袭转移。本研究通过双特异性anti-PD-L1&CXCR4纳米抗体(anti-PD-L1&CXCR4 bispecific nanobody, BsNb PX4) 联合吉西他滨, 能够协同增强人外周血单核细胞(human peripheral blood mononuclear cell, hPBMC) 的抗肿瘤免疫效应。在吉西他滨预处理的hPBMC与肿瘤细胞共孵育体系中, 加入双特异性anti-PD-L1&CXCR4纳米抗体, 能够提高hPBMC杀伤肿瘤细胞的活性; 流式细胞术分析证明, BsNb PX4与吉西他滨联用能够增加CD8+/CD4+T细胞的比例; 体内实验表明, 联合用药组的胰腺癌荷瘤NOD/SCID小鼠肿瘤组织中有更多CD8+T细胞浸润, 并且抑瘤效果优于单药组, 为胰腺癌的免疫治疗提供了新的潜在治疗方式。人外周血单核细胞分离实验获得上海交通大学地方伦理委员会批准, 动物福利和实验过程获得上海交通大学动物伦理委员会批准(批准号: A2024246)。
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The effect of chemotherapy drug GEM in combination with BsNb PX4 on the cytotoxicity of PBMC against tumor cells. A: PBMC∶tumor cell = 10∶1; B: PBMC∶tumor cell = 15∶1. GEM: Gemcitabine; BsNb (BsNb PX4): Anti-PD-L1&CXCR4 bispecific nanobody; PBMC: Peripheral blood mononuclear cell. n = 3, x±s. *P < 0.05, **P < 0.01, ***P < 0.001, ****P < 0.000 1 , figureFileSmall=PdEDfe20ETERwJpBFELG0A==, figureFileBig=uPEWY2bUayNl4XDQL1+Gvw==, tableContent=null), ArticleFig(id=1194709177009414189, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1193523097824358715, language=EN, label=null, caption=null, figureFileSmall=epQUzMQ+x42ifYBm7OJGgQ==, figureFileBig=tHiK485UL90epjgRWt74Vw==, tableContent=null), ArticleFig(id=1194709177072328750, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1193523097824358715, language=CN, label=Figure 2, caption=
The percentage of CD8+ and CD4+ T cell under different concentrations of GEM in combination with BsNb PX4 , figureFileSmall=epQUzMQ+x42ifYBm7OJGgQ==, figureFileBig=tHiK485UL90epjgRWt74Vw==, tableContent=null), ArticleFig(id=1194709177131049007, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1193523097824358715, language=EN, label=null, caption=null, figureFileSmall=3EgkZWZ2qxtwiNJCOKkflQ==, figureFileBig=DiIqb+nnZckTShLJm/wVhg==, tableContent=null), ArticleFig(id=1194709177202352176, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1193523097824358715, language=CN, label=Figure 3, caption=
The percentage of CD8+ and FOXP3+ T cell under different concentrations of the chemotherapy drug GEM in combination with BsNb PX4 , figureFileSmall=3EgkZWZ2qxtwiNJCOKkflQ==, figureFileBig=DiIqb+nnZckTShLJm/wVhg==, tableContent=null), ArticleFig(id=1194709177286238257, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1193523097824358715, language=EN, label=null, caption=null, figureFileSmall=WWP1TzWO+j2c9dtWdnD9mQ==, figureFileBig=xnFU6KvvOcP2Xb0LHqT6Mg==, tableContent=null), ArticleFig(id=1194709177378512946, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1193523097824358715, language=CN, label=Figure 4, caption=
The combination of BsNb PX4 with chemotherapy drug GEM enhanced anti-tumor effect of PBMC. A: Schematic schedule of inoculating tumor and treatment; B: Tumor growth curve of NOD/SCID mice under different treatment groups, measuring tumor volume with vernier calipers every 3 days; C: Tumor weight of each group at the end of the experiment; D: NOD/SCID mouse body weight changes over time, weighed every 3 days. n = 5, x±s. *P < 0.05, **P < 0.01, ***P < 0.001, ****P < 0.000 1 , figureFileSmall=WWP1TzWO+j2c9dtWdnD9mQ==, figureFileBig=xnFU6KvvOcP2Xb0LHqT6Mg==, tableContent=null), ArticleFig(id=1194709177441427507, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1193523097824358715, language=EN, label=null, caption=null, figureFileSmall=VDPu7mCrzRNdqeMYV/NKsQ==, figureFileBig=YrpKW1Vp03M5JFQFMlZPWA==, tableContent=null), ArticleFig(id=1194709177500147764, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1193523097824358715, language=CN, label=Figure 5, caption=
HE staining and immunofluorescence of subcutaneous transplantation tumor under different treatment methods. A: HE staining and CD8+/panCK+/DAPI fluorescence images. Scale bar: 200 and 100 μm (HE staining), 400 and 200 μm (CD8+/panCK+/DAPI fluorescence images); B: Mean gray value of CD8+ under different treatment methods; C: Mean gray value of panCK+ under different treatment methods. n = 3, x±s. *P < 0.05, **P < 0.01, ****P < 0.000 1 , figureFileSmall=VDPu7mCrzRNdqeMYV/NKsQ==, figureFileBig=YrpKW1Vp03M5JFQFMlZPWA==, tableContent=null), ArticleFig(id=1194709177550479413, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1193523097824358715, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| Group | CD4+/% | CD8+/% | CD8+/CD4+ |
| Control | 42.53 ± 1.60 | 15.13 ± 1.45 | 0.36 ± 0.03 |
| BsNb PX4 (0.1 μmol·L-1) | 40.26 ± 3.46 | 17.21 ± 1.95 | 0.43 ± 0.02 |
| GEM (1 μmol·L-1) | 44.29 ± 3.43 | 15.67 ± 0.47 | 0.35 ± 0.02 |
| GEM (1 μmol·L-1)+BsNb PX4 (0.1 μmol·L-1) | 44.44 ± 2.88 | 17.57 ± 1.79 | 0.40 ± 0.03 |
| GEM (3.3 μmol·L-1) | 47.62 ± 2.84 | 15.22 ± 1.62 | 0.32 ± 0.02 |
| GEM (3.3 μmol·L-1)+BsNb PX4 (0.1 μmol·L-1) | 37.63 ± 3.71 | 14.78 ± 1.14 | 0.39 ± 0.01 |
| GEM (10 μmol·L-1) | 46.42 ± 2.75 | 13.79 ± 1.07 | 0.30 ± 0.01 |
| GEM (10 μmol·L-1)+BsNb PX4 (0.1 μmol·L-1) | 43.2 ± 1.96 | 15.02 ± 0.97 | 0.35 ± 0.01 |
), ArticleFig(id=1194709177625976886, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1193523097824358715, language=CN, label=Table 1, caption=
CD4+ T cell (%), CD8+ T cell (%) and ratio of CD8+/CD4+ T cell. n = 3, x±s
, figureFileSmall=null, figureFileBig=null, tableContent=
| Group | CD4+/% | CD8+/% | CD8+/CD4+ |
| Control | 42.53 ± 1.60 | 15.13 ± 1.45 | 0.36 ± 0.03 |
| BsNb PX4 (0.1 μmol·L-1) | 40.26 ± 3.46 | 17.21 ± 1.95 | 0.43 ± 0.02 |
| GEM (1 μmol·L-1) | 44.29 ± 3.43 | 15.67 ± 0.47 | 0.35 ± 0.02 |
| GEM (1 μmol·L-1)+BsNb PX4 (0.1 μmol·L-1) | 44.44 ± 2.88 | 17.57 ± 1.79 | 0.40 ± 0.03 |
| GEM (3.3 μmol·L-1) | 47.62 ± 2.84 | 15.22 ± 1.62 | 0.32 ± 0.02 |
| GEM (3.3 μmol·L-1)+BsNb PX4 (0.1 μmol·L-1) | 37.63 ± 3.71 | 14.78 ± 1.14 | 0.39 ± 0.01 |
| GEM (10 μmol·L-1) | 46.42 ± 2.75 | 13.79 ± 1.07 | 0.30 ± 0.01 |
| GEM (10 μmol·L-1)+BsNb PX4 (0.1 μmol·L-1) | 43.2 ± 1.96 | 15.02 ± 0.97 | 0.35 ± 0.01 |
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