2014
DOI: 10.1016/j.ccell.2014.09.015
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TRPM3 and miR-204 Establish a Regulatory Circuit that Controls Oncogenic Autophagy in Clear Cell Renal Cell Carcinoma

Abstract: Summary 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 growth of clear cell renal cell carcinoma (ccRCC) and stimulates MAP1LC3A (LC3A) and MAP1LC3B (LC3B) autophagy. Increased expression of TRPM3 in RCC leads to Ca2+ influx, activation of CAMKK2, AMPK, and ULK1, an… Show more

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Cited by 156 publications
(172 citation statements)
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“…Interestingly, TRPM3 was validated to be a target of miR-204 [51], consistent with that some genes are autoregulated via intronic microRNAs [73]. Some stimuli may induce expression of both miR-204 and TRPM3 .…”
Section: Factors Regulating Expression and Function Of Mir-204mentioning
confidence: 80%
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“…Interestingly, TRPM3 was validated to be a target of miR-204 [51], consistent with that some genes are autoregulated via intronic microRNAs [73]. Some stimuli may induce expression of both miR-204 and TRPM3 .…”
Section: Factors Regulating Expression and Function Of Mir-204mentioning
confidence: 80%
“…Therefore, both TRPM3 and miR-204 can play their roles only temporarily in these circumstances. With the role of TRPM3 in cancers [51, 74], the TRPM3-miR-204 feedback loop may be important to prevent progression of oncogenic transformation and may also exist widely in physiological situations.…”
Section: Factors Regulating Expression and Function Of Mir-204mentioning
confidence: 99%
See 1 more Smart Citation
“…Finally, in renal carcinoma, the influx of Ca 21 and zinc through the TRPM3 channel in the plasma membrane, respectively, activates the CaMKK2-AMPK pathway and suppresses the increase of miR-241, a microRNA that targets LC3, thus stimulating autophagy. In this model, autophagy contributes to tumor growth (Hall et al, 2014). These varied outcomes may be attributed to: 1) the presence or absence and the levels of key proteins involved in the connection between Despite not being assessed, in these contexts, autophagy is known to be cytoprotective (Lum et al, 2005;Onodera and Ohsumi, 2005).…”
Section: Autophagy Ca 21 and Cancermentioning
confidence: 99%
“…Inhibition of TRPC6 expression in human renal adenocarcinoma ACHN cells suppressed proliferation and prolonged RCC cells G2/M phase transition, suggesting TRPC6 channel as a key regulator of RCC development (Song et al, 2013). Also TRPM3 has been shown to play a role in RCC development, promoting growth of clear cell renal cell carcinoma (ccRCC) and stimulating autophagy MAP1LC3A (LC3A) and MAP1LC3B (LC3B) (Hall et al, 2014).…”
Section: Trp Expression In Cancermentioning
confidence: 99%