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1.湖南省妇幼保健院妇一科,长沙 410008
2.湖南省妇幼保健院盆底专科,长沙 410008
李 昂,Email:Tony300909@163.com,研究方向:盆底疾病的诊治。
收稿:2023-04-17,
修回:2023-07-03,
录用:2023-09-11,
纸质出版:2023-10-28
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李昂,张芳,唐爱琼,等.CXCL10/CCL2 信号通路介导肿瘤微环境中宫颈癌的发展[J].重庆医科大学学报,2023,48(10):1221-1228.
Li Ang,Zhang Fang,Tang Aiqiong,et al.CXCL10/CCL2 signaling pathway mediates the development of cervical cancer in tumor microenvironment[J].Journal of Chongqing Medical University,2023,48(10):1221-1228.
李昂,张芳,唐爱琼,等.CXCL10/CCL2 信号通路介导肿瘤微环境中宫颈癌的发展[J].重庆医科大学学报,2023,48(10):1221-1228. DOI: 10.13406/j.cnki.cyxb.003361.
Li Ang,Zhang Fang,Tang Aiqiong,et al.CXCL10/CCL2 signaling pathway mediates the development of cervical cancer in tumor microenvironment[J].Journal of Chongqing Medical University,2023,48(10):1221-1228. DOI: 10.13406/j.cnki.cyxb.003361.
目的
2
探讨趋化因子(C-X-C 基序)配体 10(Chemokine(C-X-C motif) ligand 10,CXCL10)/C-C 基元配体 2(CC chemokine ligand 2,CCL2) 信号通路在肿瘤微环境(tumor microenvironment,TME)中宫颈癌(cervical cancer,CC)发展中的作用。
方法
2
体外实验将宫颈癌细胞系 Hela 细胞分别用针对 CXCL10 基因的 shRNA(sh-CXCL10)和CXCL10 cDNA(CXCL10)转染处理,并通过 EdU 分析试验评估细胞增殖能力,和 Transwell 检测细胞侵袭能力。将 THP-1 细胞用佛波醇 12-肉豆蔻酸 13-乙酸酯(phorbol 12-myristate 13-acetate,PMA)诱导分化,并与转染慢病毒或质粒的 Hela 细胞以 1∶4 的比例组合共培养 48 h。通过流式细胞术检测 CD206+巨噬细胞数目和免疫印迹检测 STAT3/NF-κB 信号表达。
结果
2
与 NC 组相比,与 THP-1 细胞共培养的 CXCL10 过表达的 Hela 细胞表现出增殖、迁移能力增强和侵袭细胞数增加(
P
<
0.05),并且 CD206+巨噬细胞的比率显著增加(
P
<
0.05),而与 THP-1细胞共培养的 CXCL10 敲低的 Hela 细胞则显示相反效果。与 NC 组相比,CXCL10 组共培养系统中 p-STAT3、p-NF-κB 表达和 CCL2 水平显著增加(
P
<
0.05)。与 sh-NC相比,sh-CXCL10共培养系统中p-STAT3、p-NF-κB 表达和 CCL2 水平显著减少(
P
<
0.05)。
结论
2
CC 细胞中 CXCL10 上调促进 TME 中巨噬细胞 M2 极化,其机制可能与激活巨噬细胞的 STAT3/NF-κB/CCL2 信号传导途径有关,导致 CC 细胞增殖、迁移和侵袭能力增强。
Objective
2
To investigate the role of C-X-C motif chemokine ligand 10(CXCL10)/C-C motif chemokine ligand 2(CCL2) signaling pathway in the development of cervical cancer(CC) in tumor microenvironment.
Methods
2
In vitro
cervical cancer Hela cells were transfected with shRNA(sh-CXCL10) and CXCL10 cDNA(CXCL10) targeting
CXCL10
gene,respectively.Cell proliferation was evaluated by EdU analysis and cell invasion was detected by Transwell assay.THP-1 cell differentiation was induced with phorbol 12-myristic acid 13-acetate(PMA).The cells were co-cultured with Hela cells(5×10
6
cells) transfected with the lentivirus or plasmid at a ratio of 1∶4 for 48 h.The number of CD206+ macrophages was determined by flow cytometry and STAT3/NF-κB signal expression was measured by Western blot.
Results
2
Compared with the NC group,Hela cells with
CXCL10
over-expression co-cultured with THP-1 cells showed increased proliferation,migration,and invasion(
P
<
0.05),and the ratio of CD206+ macrophages increased significantly(
P
<
0.05).Hela cells with
CXCL10
knock-down co-cultured with THP-1 cells showed the opposite results.Compared with NC group,the CXCL10 co-culture system showed significant increases
in the expression of p-STAT3,p-NF-κB,and CCL2(
P
<
0.05).Compared with the sh-NC group,the sh-CXCL10 co-culture system showed significant decreases in the expression of p-STAT3,p-NF-κB,and CCL2(
P
<
0.05).
Conclusion
2
Up-regulation of CXCL10 in CC cells promotes M2 polarization of macrophages in tumor microenvironment.The mechanism may be related to activation of STAT3/NF-κB/CCL2 signal transduction pathway in macrophages,which leads to the enhancement of proliferation,migration,and invasion of CC cells.
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