Elastin is a key factor of tumor development in colorectal cancer
Abstract Background Colorectal cancer (CRC) is the most common cancer and a leading cause of death worldwide. Extracellular matrix (ECM) proteins regulate tumor growth and development in CRC. Elastin (ELN) is a component of ECM proteins involved in the tumor microenvironment. However, the role of EL...
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doaj-0650710be90d4d678e9d4f68310c83de2020-11-25T02:56:29ZengBMCBMC Cancer1471-24072020-03-0120111210.1186/s12885-020-6686-xElastin is a key factor of tumor development in colorectal cancerJinzhi Li0Xiaoyue Xu1Yanyan Jiang2Nicole G. Hansbro3Philip M. Hansbro4Jincheng Xu5Gang Liu6School of Nursing, Bengbu Medical CollegeFaculty of Health, University of Technology SydneySchool of Anatomy, Bengbu Medical CollegeSchool of Life Sciences, Faculty of Science, University of Technology SydneySchool of Life Sciences, Faculty of Science, University of Technology SydneyStomatology Department, The First Affiliated Hospital of Bengbu Medical CollegeSchool of Life Sciences, Faculty of Science, University of Technology SydneyAbstract Background Colorectal cancer (CRC) is the most common cancer and a leading cause of death worldwide. Extracellular matrix (ECM) proteins regulate tumor growth and development in CRC. Elastin (ELN) is a component of ECM proteins involved in the tumor microenvironment. However, the role of ELN in CRC remains unclear. Methods In this study, we analyzed ELN gene expression in tumors from CRC patients and adjacent non-tumor colon tissues and healthy controls from two existing microarray datasets. ELN protein was measured in human normal colon cells and colon cancer epithelial cells and tumor development was assessed in colon epithelial cells cultured in medium with or without ELN peptide on plates coated with ELN recombinant protein. Control plates were coated with PBS only. Results We found ELN gene expression was increased in tumors from CRC patients compared to adjacent non-tumor tissues and healthy controls. ELN protein was increased in cancer cells compared to normal colon epithelial cells. Transforming growth factor beta (TGF-β) was a key cytokine to induce production of ECM proteins, but it did not induce ELN expression in colon cancer cells. Matrix metalloproteinase 9 (MMP9) gene expression was increased, but that of MMP12 (elastase) did not change between CRC patients and control. Tissue inhibitor of metalloproteinases 3 (TIMP3) gene expression was decreased in colon tissues from CRC patients compared to healthy controls. However, MMP9, MMP12 and TIMP3 proteins were increased in colon cancer cells. ELN recombinant protein increased proliferation and wound healing in colon cancer epithelial cells. This had further increased in cancer cells incubated in plates coated with recombinant ELN coated plate and in culture media containing ELN peptide. A potential mechanism was that ELN induced epithelial mesenchymal transition with increased alpha-smooth muscle actin and vimentin proteins but decreased E-cadherin protein. Tumor necrosis factor alpha (TNF) mRNA was also increased in CRC patients compared to controls. ELN recombinant protein induced further increases in TNF protein in mouse bone marrow derived macrophages after lipopolysaccharide stimulation. Conclusions These data suggest ELN regulates tumor development and the microenvironment in CRC.http://link.springer.com/article/10.1186/s12885-020-6686-xColorectal cancerExtracellular matrix proteinElastin, epithelial-mesenchymal transition |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jinzhi Li Xiaoyue Xu Yanyan Jiang Nicole G. Hansbro Philip M. Hansbro Jincheng Xu Gang Liu |
spellingShingle |
Jinzhi Li Xiaoyue Xu Yanyan Jiang Nicole G. Hansbro Philip M. Hansbro Jincheng Xu Gang Liu Elastin is a key factor of tumor development in colorectal cancer BMC Cancer Colorectal cancer Extracellular matrix protein Elastin, epithelial-mesenchymal transition |
author_facet |
Jinzhi Li Xiaoyue Xu Yanyan Jiang Nicole G. Hansbro Philip M. Hansbro Jincheng Xu Gang Liu |
author_sort |
Jinzhi Li |
title |
Elastin is a key factor of tumor development in colorectal cancer |
title_short |
Elastin is a key factor of tumor development in colorectal cancer |
title_full |
Elastin is a key factor of tumor development in colorectal cancer |
title_fullStr |
Elastin is a key factor of tumor development in colorectal cancer |
title_full_unstemmed |
Elastin is a key factor of tumor development in colorectal cancer |
title_sort |
elastin is a key factor of tumor development in colorectal cancer |
publisher |
BMC |
series |
BMC Cancer |
issn |
1471-2407 |
publishDate |
2020-03-01 |
description |
Abstract Background Colorectal cancer (CRC) is the most common cancer and a leading cause of death worldwide. Extracellular matrix (ECM) proteins regulate tumor growth and development in CRC. Elastin (ELN) is a component of ECM proteins involved in the tumor microenvironment. However, the role of ELN in CRC remains unclear. Methods In this study, we analyzed ELN gene expression in tumors from CRC patients and adjacent non-tumor colon tissues and healthy controls from two existing microarray datasets. ELN protein was measured in human normal colon cells and colon cancer epithelial cells and tumor development was assessed in colon epithelial cells cultured in medium with or without ELN peptide on plates coated with ELN recombinant protein. Control plates were coated with PBS only. Results We found ELN gene expression was increased in tumors from CRC patients compared to adjacent non-tumor tissues and healthy controls. ELN protein was increased in cancer cells compared to normal colon epithelial cells. Transforming growth factor beta (TGF-β) was a key cytokine to induce production of ECM proteins, but it did not induce ELN expression in colon cancer cells. Matrix metalloproteinase 9 (MMP9) gene expression was increased, but that of MMP12 (elastase) did not change between CRC patients and control. Tissue inhibitor of metalloproteinases 3 (TIMP3) gene expression was decreased in colon tissues from CRC patients compared to healthy controls. However, MMP9, MMP12 and TIMP3 proteins were increased in colon cancer cells. ELN recombinant protein increased proliferation and wound healing in colon cancer epithelial cells. This had further increased in cancer cells incubated in plates coated with recombinant ELN coated plate and in culture media containing ELN peptide. A potential mechanism was that ELN induced epithelial mesenchymal transition with increased alpha-smooth muscle actin and vimentin proteins but decreased E-cadherin protein. Tumor necrosis factor alpha (TNF) mRNA was also increased in CRC patients compared to controls. ELN recombinant protein induced further increases in TNF protein in mouse bone marrow derived macrophages after lipopolysaccharide stimulation. Conclusions These data suggest ELN regulates tumor development and the microenvironment in CRC. |
topic |
Colorectal cancer Extracellular matrix protein Elastin, epithelial-mesenchymal transition |
url |
http://link.springer.com/article/10.1186/s12885-020-6686-x |
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