Claudin-4 Expression in Gastric Cancer Cells Enhances the Invasion and is Associated with the Increased Level of Matrix Metalloproteinase-2 and -9 Expression
Overview
Affiliations
Claudin-4 is a member of a large family of transmembrane proteins known as claudins, which are essential for the formation and maintenance of tight junctions. Our previous studies have revealed that claudin-4 proteins are overexpressed in metastatic gastric cancer. To clarify the roles of claudin-4 in gastric cancer metastasis, human gastric adenocarcinoma (AGS) cells constitutively expressing wild-type claudin-4 were generated. Expression of claudin-4 in AGS cells was found to increase cell invasion and migration, as measured by Boyden invasion chamber assays. Moreover, the claudin-4-expressing AGS cells were found to have increased matrix metalloproteinase (MMP)-2 and -9 expression, indicating that claudin-mediated increased invasion may be mediated through the activation of the MMP protein. Overall, the results suggest that claudin-4 overexpression may promote gastric cancer metastasis through the increased invasion of gastric cancer cells.
Transcriptional and Epigenetic Bioinformatic Analysis of Claudin-9 Regulation in Gastric Cancer.
Hernandez-Nava E, Montano L, Rendon-Huerta E J Oncol. 2024; 2021:5936905.
PMID: 39296813 PMC: 11410435. DOI: 10.1155/2021/5936905.
Subpopulation commensalism promotes Rac1-dependent invasion of single cells via laminin-332.
Yoon S, Chen L, Robinson I, Khatib T, Arthur R, Claussen H J Cell Biol. 2024; 223(6).
PMID: 38551497 PMC: 10982113. DOI: 10.1083/jcb.202308080.
The role and mechanism of claudins in cancer.
Wang D, Zhang W, Danil G, Yang K, Hu J Front Oncol. 2023; 12:1051497.
PMID: 36620607 PMC: 9818346. DOI: 10.3389/fonc.2022.1051497.
Claudin-6 increases SNAI1, NANOG and SOX2 gene expression in human gastric adenocarcinoma AGS cells.
Medrano-Gonzalezl P, Cruz-Villegas F, Alarcon Del Carmen A, Montano L, Rendon-Huerta E Mol Biol Rep. 2022; 49(12):11663-11674.
PMID: 36169897 DOI: 10.1007/s11033-022-07976-z.
Intestinal Barrier, Claudins and Mycotoxins.
Koziel M, Ziaja M, Piastowska-Ciesielska A Toxins (Basel). 2021; 13(11).
PMID: 34822542 PMC: 8622050. DOI: 10.3390/toxins13110758.