| TRPV3 (Transient Receptor Potential Vanilloid 3) is a calcium-permeable TRP channel involved in epithelial signaling, stress responses, and growth regulation. In cancer, its role appears tumor-type dependent rather than uniform. In several reported cancers, including breast, lung, melanoma, and squamous malignancies, increased TRPV3 expression has been associated with proliferation, survival, invasion, and pro-growth signaling such as ERK/MAPK. In contrast, in colorectal cancer, lower TRPV3 expression has been linked to poorer prognosis, and experimental restoration of TRPV3 has been reported to suppress proliferation and migration, suggesting a tumor-suppressive role in that setting. Overall, TRPV3 is best classified as a context-dependent calcium-signaling regulator whose significance depends on tissue type and downstream signaling environment.
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