机构:[1]School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, Yunnan 650031[2]Department of Oncology, The First People's Hospital of Yunnan Province, Kunming, Yunnan 650032内科片肿瘤内科云南省第一人民医院[3]Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650031, P.R. China
13-Chlorine-3,15-dioxy-gibberellic acid methyl ester (GA-13315), a gibberellin derivative, possesses strong anti-tumor activity in vitro and in vivo. The present study aimed to investigate the underlying mechanisms of GA-13315-induced apoptosis in human non-small cell lung cancer cell lines. Lung cancer cells were treated with different doses of GA-13315 (4, 8, 16 and 32 ng/mu l) for 48 h, and a CCK8 assay was performed to measure cell viability. Alteration in gene expression was identified using RNA-sequencing (RNA-Seq). Quantitative polymerase chain reaction (qPCR) was used to confirm the differentially expressed genes (DEGs) identified in RNA-Seq. Gene expression plasmids or small interfering RNA were used to overexpress or silence targeted genes, in order to investigate downstream signals. Chromatin immunoprecipitation was conducted to evaluate the binding of transcription factors to the target genes. A Student's t-test or one-way analysis of variance followed by Tukey's honestly significant difference post-hoc test were performed to evaluate the significance between groups. P<0.05 was considered to indicate a statistically significant difference. GA-13315 significantly decreased the number of viable cells and induced apoptosis among lung cancer cells (median lethal dose =12-16 ng/mu l). RNA-Seq identified 250 significant DEGs, including 94 upregulated and 156 downregulated genes in A549 cells (P<0.05; fold change >= 1.5). Upregulation of TRIM67, NF-kappa B subunit 2 (NF-kappa B2) and FAS was additionally confirmed using qPCR and western blot analysis in A549 and H460 cells. Apoptosis of A549 cells was significantly decreased following knockdown of TRIM67. GA-13315 promoted TRIM67 expression to increase FAS expression and cell apoptosis. TRIM67 promoted the processing of NF-kappa B2 into its active form, p52, which then enhanced the NF-kappa B pathway and GA-13315-induced apoptosis.
基金:
National Natural Science Foundation of ChinaNational Natural Science Foundation of China [81460559]; Key Scientific and Technological Achievements Cultivation Project of Kunming Medical University [CGPY201502]
第一作者机构:[1]School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, Yunnan 650031[2]Department of Oncology, The First People's Hospital of Yunnan Province, Kunming, Yunnan 650032
通讯作者:
通讯机构:[1]School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, Yunnan 650031[3]Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650031, P.R. China[*1]School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, 1168 Chunrong West Road, Kunming, Yunnan 650031, P.R. China[*2]Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, 2 Cuihu North Road, Kunming, Yunnan 650031, P.R. China
推荐引用方式(GB/T 7714):
Liu Rui,Chen Yajuan,Shou Tao,et al.TRIM67 promotes NF-kappa B pathway and cell apoptosis in GA-13315-treated lung cancer cells[J].MOLECULAR MEDICINE REPORTS.2019,20(3):2936-2944.doi:10.3892/mmr.2019.10509.
APA:
Liu, Rui,Chen, Yajuan,Shou, Tao,Hu, Jing,Chen, Jingbo&Qing, Chen.(2019).TRIM67 promotes NF-kappa B pathway and cell apoptosis in GA-13315-treated lung cancer cells.MOLECULAR MEDICINE REPORTS,20,(3)
MLA:
Liu, Rui,et al."TRIM67 promotes NF-kappa B pathway and cell apoptosis in GA-13315-treated lung cancer cells".MOLECULAR MEDICINE REPORTS 20..3(2019):2936-2944