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Calcium channel opener

From Wikipedia, the free encyclopedia

A calcium channel opener is a type of drug which facilitates ion transmission through calcium channels.

An example is Bay K8644, which is an analogue of nifedipine that specifically and directly activates L-type voltage-dependent calcium channels.[1]

In contrast to Bay K8644, which is not for clinical use, ambroxol is a frequently used mucolytic drug that triggers lysosomal secretion by mobilizing calcium from acidic calcium stores.[2] This effect does most likely not occur by a direct interaction between the drug and a lysosomal calcium channel, but indirectly by neutralizing the acidic pH within lysosomes. Calcium permeable ion channels in lysosomal membranes that may be activated by a luminal pH increase include two pore channels (TPCs), mucolipin TRP channels (TRPMLs) and purinergic receptors of the P2X channel type.[3][4]

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Transcription

See also

References

  1. ^ Schramm M, Thomas G, Towart R, Franckowiak G (1983). "Activation of calcium channels by novel 1,4-dihydropyridines. A new mechanism for positive inotropics or smooth muscle stimulants". Arzneimittelforschung. 33 (9): 1268–72. PMID 6196037.
  2. ^ Fois, Giorgio; Hobi, Nina; Felder, Edward; Ziegler, Andreas; Miklavc, Pika; Walther, Paul; Radermacher, Peter; Haller, Thomas; Dietl, Paul (2015). "A new role for an old drug: Ambroxol triggers lysosomal exocytosis via pH-dependent Ca2+ release from acidic Ca2+ stores". Cell Calcium. 58 (6): 628–637. doi:10.1016/j.ceca.2015.10.002. PMID 26560688.
  3. ^ Patel, Sandip; Cai, Xinjiang (2015). "Evolution of acidic Ca2+ stores and their resident Ca2+-permeable channels". Cell Calcium. 57 (3): 222–230. doi:10.1016/j.ceca.2014.12.005. PMID 25591931.
  4. ^ Xu, Haoxing; Ren, Dejian (2015-01-01). "Lysosomal Physiology". Annual Review of Physiology. 77 (1): 57–80. doi:10.1146/annurev-physiol-021014-071649. PMC 4524569. PMID 25668017.


This page was last edited on 5 December 2020, at 03:57
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