1. Mechanisms of JAK-STAT signaling pathway mediated by CXCL8 gene silencing on epithelial-mesenchymal transition of human cutaneous melanoma cells
- Author
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Lili Yuan, Teng Ma, and Xiaorui Hu
- Subjects
0301 basic medicine ,musculoskeletal diseases ,Cancer Research ,JAK-STAT signaling pathway ,proliferation ,Cell ,epithelial-mesenchymal transition ,Vimentin ,03 medical and health sciences ,cutaneous melanoma ,0302 clinical medicine ,medicine ,Gene silencing ,Epithelial–mesenchymal transition ,CXCL8 gene ,biology ,Chemistry ,apoptosis ,Transfection ,Articles ,030104 developmental biology ,medicine.anatomical_structure ,Oncology ,Apoptosis ,030220 oncology & carcinogenesis ,Cutaneous melanoma ,Cancer research ,biology.protein - Abstract
Effect of CXCL8 gene silencing-mediated JAK-STAT signaling pathway on epithelial-mesenchymal transition (EMT) of human cutaneous melanoma cells was explored. Eighty patients with cutaneous melanoma were enrolled in the study. Cells were transfected accordingly and divided into five groups: The blank group (human cutaneous melanoma cells), NC group (human cutaneous melanoma cells + blank vector plasmid transfection), CXCL8 siRNA group (human cutaneous melanoma cells + CXCL8 silent expression vector plasmid transfection), AG490 group (human cutaneous melanoma cells + JAK-STAT signal pathway inhibitor transfection), CXCL8 siRNA + AG490 group (human cutaneous melanoma cells + JAK-STAT signaling pathway inhibitor + CXCL8 silent expression vector plasmid transfection). The expression levels of CXCL8, JAK2, STAT3, epithelial cadherin (E-cadherin), neurotrophic cadherin (N-cadherin) and vimentin in tissues and cells were detected by RT-qPCR and western blot analysis. CCK-8 and flow cytometry were used to detect cell proliferation and apoptosis. Compared with adjacent normal tissues, the expression of E-cadherin in human cutaneous melanoma tissues was significantly decreased, whereas the expression of CXCL8, JAK2, STAT3, vimentin and N-cadherin was significantly increased (P
- Published
- 2020