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Pathway Description
Zalcitabine Action Pathway
Homo sapiens
Drug Action Pathway
Created: 2014-06-23
Last Updated: 2019-08-16
Zalcitabine (ddc) is a dideoxynucleoside antiretroviral drug that when used in combination with zidovudine improves the viral load and CD4+ cell count of patients infected with Human Immunodeficiency Virus Type 1 (HIV-1). Zalcitabine is phosphorylated to it’s active form metabolite 2′,3′-dideoxycytidine 5′-triphosphate (ddCTP) in both healthy and infected cells. ddCTP competes with deoxycytidine triphosphate inhibiting the enzyme reverse transcriptase from using the substrates to elongate the viral DNA strand ultimately halting HIV replication.
References
Zalcitabine Pathway References
Collier AC, Coombs RW, Schoenfeld DA, Bassett RL, Timpone J, Baruch A, Jones M, Facey K, Whitacre C, McAuliffe VJ, Friedman HM, Merigan TC, Reichman RC, Hooper C, Corey L: Treatment of human immunodeficiency virus infection with saquinavir, zidovudine, and zalcitabine. AIDS Clinical Trials Group. N Engl J Med. 1996 Apr 18;334(16):1011-7. doi: 10.1056/NEJM199604183341602.
Pubmed: 8598838
Adkins JC, Peters DH, Faulds D: Zalcitabine. An update of its pharmacodynamic and pharmacokinetic properties and clinical efficacy in the management of HIV infection. Drugs. 1997 Jun;53(6):1054-80. doi: 10.2165/00003495-199753060-00009.
Pubmed: 9179531
Shelton MJ, O'Donnell AM, Morse GD: Zalcitabine. Ann Pharmacother. 1993 Apr;27(4):480-9. doi: 10.1177/106002809302700416.
Pubmed: 8097417
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