Abstract
Background: Colorectal cancer is one of the most common gastrointestinal malignancies worldwide. LRCH4 is the top 1 gene associated with an unfavorable prognosis in colorectal cancer.
Methods: Here, we reported that the knockdown of LRCH4 inhibited the proliferation, migration and invasion in HT29 cells.
Results: The activity of Yes-Associated Protein (YAP), a transcription factor in the Hppo-YAP signaling pathway, was significantly inhibited by LRCH4-siRNA. LRCH4 knockdown also reversed the EMT and regulated the expression of extracellular matrix (ECM) protein, Fibronectin and Collagen IV in HT29 cells. In addition, the TGF-β/Smad signaling pathway, as the downstream pathway of Yap, was also inhibited by LRCH4 knockdown.
Conclusion: Knockdown of LRCH4 involved in the regulation of ECM and EMT and inhibited YAP and the TGF-β/Smad signaling pathway in colorectal cancer cells. Our study provided a mechanism of LRCH4 on colorectal cancer cells, and a new potential target for clinical tumor treatment.
Keywords: Colorectal cancer, prognosis, tumor microenvironment, YAP, epithelial mesenchymal transformation, calponin homology (CH).
[http://dx.doi.org/10.3322/caac.21492] [PMID: 30207593]
[http://dx.doi.org/10.3322/caac.21262] [PMID: 25651787]
[http://dx.doi.org/10.3389/fcell.2020.584134] [PMID: 33072765]
[http://dx.doi.org/10.1126/science.aan2507] [PMID: 28818916]
[http://dx.doi.org/10.1371/journal.pone.0012257] [PMID: 20805893]
[http://dx.doi.org/10.1074/jbc.RA118.004300] [PMID: 30523158]
[http://dx.doi.org/10.1371/journal.pone.0003024] [PMID: 18714388]
[http://dx.doi.org/10.1371/journal.pone.0188697] [PMID: 29182684]
[http://dx.doi.org/10.7554/eLife.61078] [PMID: 34269679]
[http://dx.doi.org/10.1038/s41556-020-00588-4] [PMID: 33046882]
[http://dx.doi.org/10.1016/j.tcb.2021.10.004] [PMID: 34836782]
[http://dx.doi.org/10.3389/fimmu.2021.656364] [PMID: 34122412]
[http://dx.doi.org/10.1161/ATVBAHA.114.304554] [PMID: 25378411]
[http://dx.doi.org/10.1016/j.ejmech.2020.112851] [PMID: 33002846]
[http://dx.doi.org/10.1007/s12035-018-1310-7] [PMID: 30121936]
[http://dx.doi.org/10.1159/000175156] [PMID: 19176991]
[http://dx.doi.org/10.1186/s12943-022-01569-x] [PMID: 35461253]
[http://dx.doi.org/10.1152/ajprenal.00367.2021] [PMID: 35253468]
[http://dx.doi.org/10.1126/scitranslmed.aaz4028] [PMID: 35320001]
[http://dx.doi.org/10.1038/s41598-021-92871-z] [PMID: 34188130]
[http://dx.doi.org/10.1016/j.jdermsci.2020.08.015] [PMID: 32938565]
[http://dx.doi.org/10.1007/s00018-019-03412-x] [PMID: 31912196]
[http://dx.doi.org/10.1002/adma.202109522]
[http://dx.doi.org/10.3389/fmolb.2020.616768] [PMID: 33363213]
[http://dx.doi.org/10.1016/j.stem.2017.10.001] [PMID: 29100014]