Amcinonide inhibit NO release from activated microglia with IC50 3.38 nM. Amcinonide has affinity for the glucocorticoid receptor.IC50 value: 3.38 nM [1]Target: NO releasein vitro: Simultaneous immunofluorescent staining for T6 and Ia antigenicity within human epidermis of Amcinonide treated skin detected reduced numbers of T6+/Ia+ cells with a concomitant increase in T6+/Ia- cells. [2]in vivo: Amcinonide is an anti-inflammatory agent, elicites whitening of a few hairs in both pheomelanic and eumelanic mice. Amcinonide brings about a marked reduction in the numbers of DOPA-positive epidermal melanocytes inhabiting the tails of eumelanic or pheomelanic mice. Amcinonide exertes a deleterious influence on the structure and function of tail epidermis. [3]
References:
[1]. Hong J, et al. Identification and characterization of triamcinolone acetonide, a microglial-activation inhibitor. Immunopharmacol Immunotoxicol. 2012 Dec;34(6):912-918.
[2]. Berman B, et al. Modulation of expression of epidermal Langerhans cell properties following in situ exposure to glucocorticosteroids. J Invest Dermatol. 1983 Mar;80(3):168-171.
[3]. Quevedo WC Jr, et al. Influence of depigmenting chemical agents on hair and skin color in yellow (pheomelanic) and black (eumelanic) mice. Pigment Cell Res.1990 Mar-Apr;3(2):71-79.