PD‐L1 / p‐STAT3 promotes the progression of NSCLC cells by regulating TAM polarization
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| المؤلفون: | Rui Zhang, Ziqi Meng, Xuwei Wu, Meihua Zhang, Zhengri Piao, Tiefeng Jin |
| المصدر: | Journal of Cellular and Molecular Medicine. 26:5872-5886 |
| بيانات النشر: | Wiley, 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | STAT3 Transcription Factor, Lung Neoplasms, Cell Movement, Carcinoma, Non-Small-Cell Lung, Cell Line, Tumor, Humans, Molecular Medicine, Apoptosis, Cell Biology, B7-H1 Antigen |
| الوصف: | PD-L1 is closely related to the immune escape process of tumour cells, and targeted PD-L1 clinical immunotherapy has been implemented. However, whether PD-L1 is involved in TAM/M2 polarization in the TME of NSCLC and its specific mechanism remain unclear. In order to clarify the specific role of PD-L1 in NSCLC and to seek new treatments for NSCLC, we designed a series of experimental studies. After constructing the co-culture system and conditioned medium system, the proliferation, apoptosis, metastasis, angiogenesis, EMT process and stemness of NSCLC were detected by MTT, flow cytometry, Transwell, endothelial cell tube formation and western blot assays. The results showed that αPD-L1 reversed TAM/M2 polarization by suppressing STAT3 phosphorylation in TAM/M2, therapy inhibiting NSCLC cell migration, angiogenesis, EMT process and stemness. However, αPD-L1 had no effect on the proliferation and apoptosis abilities of NSCLC cells. In vivo experiments showed that αPD-L1 inhibited lung metastasis of NSCLC and reversed TAM/M2 polarization in TME. The study investigates the mechanism by which PD-L1 regulates TAMs polarization in TME and promotes malignant progression of NSCLC, providing a new theoretical basis for PD-L1 targeted therapy of NSCLC. |
| تدمد: | 1582-4934 1582-1838 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3120f08efc16474c89af301941c4643Test https://doi.org/10.1111/jcmm.17610Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....d3120f08efc16474c89af301941c4643 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15824934 15821838 |
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