Transient receptor potential vanilloid channel family (TRPV)

The Transient Receptor Potential Vanilloid (TRPV) channel family consists of six members (TRPV1-TRPV6) that function as non-selective cation channels, primarily permeable to calcium and sodium [7, 10]. These channels act as polymodal sensors, responding to a wide array of stimuli including temperature, mechanical stress, osmotic pressure, and various chemical ligands [3, 15]. TRPV1 through TRPV4 are notably thermosensitive, covering a range from innocuous warmth to noxious heat, and are heavily involved in nociception and sensory signaling [1, 13]. TRPV5 and TRPV6 are distinct as they are highly selective for calcium and play critical roles in systemic calcium homeostasis through reabsorption in the kidneys and intestines [7, 12]. Dysregulation of TRPV channels is implicated in numerous pathologies, including chronic pain, inflammatory skin conditions like dermatitis and pruritus, cardiovascular diseases, and various cancers where they influence cell proliferation and metastasis [8, 9, 11]. In cancer, TRPV2 and TRPV3 are often overexpressed and contribute to tumor progression and resistance to apoptosis [8, 11]. Pharmacological targeting of these channels involves agonists and antagonists, such as capsaicin for TRPV1 or tranilast for TRPV2, though achieving subtype selectivity remains a significant therapeutic challenge [1, 14]. Therapeutic development is also complicated by safety concerns, such as the hyperthermia observed with early TRPV1 antagonists [1, 5]. Overall, the TRPV family represents a diverse set of targets for treating sensory, inflammatory, and metabolic disorders [3, 6].

Other names

Vanilloid receptor familyTRPV channelsThermo-TRPs

Modulation of non-selective cation influx (primarily calcium and sodium) across the cell membrane in response to physical or chemical stimuli.