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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Cancer+Cell
2014 ; 26
(5
): 738-53
Nephropedia Template TP
gab.com Text
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English Wikipedia
TRPM3 and miR-204 establish a regulatory circuit that controls oncogenic
autophagy in clear cell renal cell carcinoma
#MMPMID25517751
Hall DP
; Cost NG
; Hegde S
; Kellner E
; Mikhaylova O
; Stratton Y
; Ehmer B
; Abplanalp WA
; Pandey R
; Biesiada J
; Harteneck C
; Plas DR
; Meller J
; Czyzyk-Krzeska MF
Cancer Cell
2014[Nov]; 26
(5
): 738-53
PMID25517751
show ga
Autophagy promotes tumor growth by generating nutrients from the degradation of
intracellular structures. Here we establish, using shRNAs, a dominant-negative
mutant, and a pharmacologic inhibitor, mefenamic acid (MFA), that the Transient
Receptor Potential Melastatin 3 (TRPM3) channel promotes the growth of clear cell
renal cell carcinoma (ccRCC) and stimulates MAP1LC3A (LC3A) and MAP1LC3B (LC3B)
autophagy. Increased expression of TRPM3 in RCC leads to Ca(2+) influx,
activation of CAMKK2, AMPK, and ULK1, and phagophore formation. In addition,
TRPM3 Ca(2+) and Zn(2+) fluxes inhibit miR-214, which directly targets LC3A and
LC3B. The von Hippel-Lindau tumor suppressor (VHL) represses TRPM3 directly
through miR-204 and indirectly through another miR-204 target, Caveolin 1 (CAV1).