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Regulator of G protein signaling 16 restrains apoptosis in colorectal cancer through disrupting TRAF6-TAB2-TAK1-JNK/p38 MAPK signaling
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Regulator of G protein signaling 16 restrains apoptosis in colorectal cancer through disrupting TRAF6-TAB2-TAK1-JNK/p38 MAPK signaling
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Regulator of G protein signaling 16 restrains apoptosis in colorectal cancer through disrupting TRAF6-TAB2-TAK1-JNK/p38 MAPK signaling
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Journal Article
Regulator of G protein signaling 16 restrains apoptosis in colorectal cancer through disrupting TRAF6-TAB2-TAK1-JNK/p38 MAPK signaling
2024
Overview
Colorectal cancer (CRC) remains a major global cause of cancer-related mortality, lacking effective biomarkers and therapeutic targets. Revealing the critical pathogenic factors of CRC and the underlying mechanisms would offer potential therapeutic strategies for clinical application. G protein signaling (RGS) protein family modulators play essential role within regulating downstream signaling of GPCR receptors, with function in cancers unclear. Our study focused on the expression patterns of RGS proteins in CRC, identifying Regulator of G protein signaling 16 (RGS16) as a prospective diagnostic and therapeutic target. Analyzing 899 CRC tissues revealed elevated RGS16 levels, correlating with clinicopathological features and CRC prognosis by immunohistochemistry (IHC) combined with microarray. We confirmed the elevated RGS16 protein level in CRC, and found that patients with RGS16-high tumors exhibited decreased disease-specific survival (DSS) and disease-free survival (DFS) compared to those with low RGS16 expression. Functional assays demonstrated that RGS16 promoted the CRC progression, knockdown of RGS16 led to significantly increased apoptosis rates of CRC in vitro and in vivo. Notably, we also confirmed these phenotypes of RGS16 in organoids originated from resected primary human CRC tissues. Mechanistically, RGS16 restrained JNK/P38-mediated apoptosis in CRC cells through disrupting the recruitment of TAB2/TAK1 to TRAF6. This study provides insights into addressing the challenges posed by CRC, offering avenues for clinical translation.
Publisher
Nature Publishing Group UK,Springer Nature B.V,Nature Publishing Group
Subject
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/ 13/2
/ 13/31
/ 13/51
/ 13/89
/ 13/95
/ 45/77
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/ 45/91
/ 64/60
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/ 96/34
/ 96/44
/ Adaptor Proteins, Signal Transducing - genetics
/ Adaptor Proteins, Signal Transducing - metabolism
/ Animals
/ Biomedical and Life Sciences
/ Cancer
/ Colorectal Neoplasms - genetics
/ Colorectal Neoplasms - metabolism
/ Colorectal Neoplasms - pathology
/ Female
/ Humans
/ Intracellular Signaling Peptides and Proteins
/ Male
/ MAP Kinase Kinase Kinases - genetics
/ MAP Kinase Kinase Kinases - metabolism
/ Mice
/ p38 Mitogen-Activated Protein Kinases - metabolism
/ Proteins
/ TNF Receptor-Associated Factor 6 - genetics
