Wenyu Wu1, Zhu Yang2, Fengxi Long3, Li Luo4, Qian Deng3, Jinlin Wu3, Silu Ouyang3, Dongxin Tang5. 1. Department of Oncology, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, Guizhou, China. 2. Party Committee Office, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, China. 3. Graduate School, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, China. 4. Department of Oncology, Guihang Guiyang Hospital, Guiyang 550009, Guizhou, China. 5. Department of Science and Education, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, Guizhou, China. Electronic address: dongxintang@yeah.net.
Abstract
OBJECTIVES: The influences of COL1A1 and MZB1 on the proliferation, migration, invasion and apoptosis abilities of rectum adenocarcinoma was aimed to explore in this study. METHODS: Gene expression levels in rectum adenocarcinoma and adjacent tissues were analyzed by differential analysis. Weighted gene correlation network analysis (WGCNA) was employed to investigate rectal adenocarcinoma (READ) hub genes. MCODE was performed to screen the modules of protein-protein interaction network in Cytoscape software. Database for Annotation, Visualization and Integrated Discovery (DAVID) online tool is considered to be the most effective tool in gene ontology (GO) enrichment and Kyoto Gene and Genomics Encyclopedia (KEGG) pathway analysis. Survival analysis was performed using READ patient information from TCGA-READ project database. Quantitative Real-time Polymerase Chain Reaction (qRT-PCR) and western blot were employedto examinemRNA and protein expressions of COL1A1 and MZB1 in tumor tissues and cell lines. After transfecting various interference sequences by liposome-mediated transfection, the influence of COL1A1 and MZB1 on the proliferation, apoptosis, migration and invasion of rectal cancer cells were observed by plate clone formation assay, flow cytometry, wound healing assay and transwell assay respectively. Moreover, xenograft tumor growth assay in vivo validated the results. RESULTS: Higher expression levels of COL1A1 and lower expression levels of MZB1 were discovered in tumor tissues of patients with colorectal adenocarcinoma. Overexpression of MZB1 and silencing COL1A1 significantly inhibited proliferation, migration and invasion, while cell apoptosis was promoted. Overexpression of MZB1 and silencing COL1A1 inhibited the orthotopic growth of tumor in vivo. CONCLUSION: COL1A1 promoted proliferation, migration and invasion but inhibited apoptosis of rectal adenocarcinoma cells while MZB1 was totally on the contrary.
OBJECTIVES: The influences of COL1A1 and MZB1 on the proliferation, migration, invasion and apoptosis abilities of rectum adenocarcinoma was aimed to explore in this study. METHODS: Gene expression levels in rectum adenocarcinoma and adjacent tissues were analyzed by differential analysis. Weighted gene correlation network analysis (WGCNA) was employed to investigate rectal adenocarcinoma (READ) hub genes. MCODE was performed to screen the modules of protein-protein interaction network in Cytoscape software. Database for Annotation, Visualization and Integrated Discovery (DAVID) online tool is considered to be the most effective tool in gene ontology (GO) enrichment and Kyoto Gene and Genomics Encyclopedia (KEGG) pathway analysis. Survival analysis was performed using READpatient information from TCGA-READ project database. Quantitative Real-time Polymerase Chain Reaction (qRT-PCR) and western blot were employedto examinemRNA and protein expressions of COL1A1 and MZB1 in tumor tissues and cell lines. After transfecting various interference sequences by liposome-mediated transfection, the influence of COL1A1 and MZB1 on the proliferation, apoptosis, migration and invasion of rectal cancer cells were observed by plate clone formation assay, flow cytometry, wound healing assay and transwell assay respectively. Moreover, xenograft tumor growth assay in vivo validated the results. RESULTS: Higher expression levels of COL1A1 and lower expression levels of MZB1 were discovered in tumor tissues of patients with colorectal adenocarcinoma. Overexpression of MZB1 and silencing COL1A1 significantly inhibited proliferation, migration and invasion, while cell apoptosis was promoted. Overexpression of MZB1 and silencing COL1A1 inhibited the orthotopic growth of tumor in vivo. CONCLUSION:COL1A1 promoted proliferation, migration and invasion but inhibited apoptosis of rectal adenocarcinoma cells while MZB1 was totally on the contrary.
Authors: Aline Simoneti Fonseca; Anelisa Ramão; Matheus Carvalho Bürger; Jorge Estefano Santana de Souza; Dalila Lucíola Zanette; Greice Andreotti de Molfetta; Luiza Ferreira de Araújo; Rafaela de Barros E Lima Bueno; Graziela Moura Aguiar; Jessica Rodrigues Plaça; Cleidson de Pádua Alves; Anemari Ramos Dinarte Dos Santos; Daniel Onofre Vidal; Gyl Eanes Barros Silva; Rodrigo Alexandre Panepucci; Fernanda Maris Peria; Omar Feres; José Joaquim Ribeiro da Rocha; Marco Antonio Zago; Wilson Araújo Silva Journal: BMC Cancer Date: 2021-03-01 Impact factor: 4.430