Gene sequence induced in skin by retinoids

Details Gene sequence induced in skin by retinoids Gene sequence induced in skin by retinoids

1995-01-27

1997-07-22

Jones, W. Gary

Chemistry: molecular biology and microbiology

Measuring or testing process involving enzymes or...

Involving nucleic acid

435 912, 536 231, 536 243, 536 2433, C12Q 168, C12P 1934, C07H 2102, C07H 2104

Patent

active

056502796

ABSTRACT:
One aspect of the invention relates to a novel human cDNA, called TIG1 (Tazarotene Induced Gene 1). Expression of the corresponding TIG1 mRNA is strongly induced from a low basal level upon treatment of skin raft cultures with the RAR .beta./.gamma. selective anti-psoriatic synthetic retinoid AGN-190168 (ethyl 6-[2-(4,4) dimethyl-thiochroman-6-yl] ethynyl-nicotinate). The TIG1 mRNA is also up-regulated by AGN-190168 and the acid form AGN-190299 (6-[2-(4,4) dimethyl-thiochroman-6-yl] ethynyl-nicotinic acid) in skin raft cultures prepared from psoriatic fibroblasts and normal keratinocytes. Further, the TIG1 mRNA is similarly up-regulated by AGN-190168 in primary fibroblast and keratinocyte cultures. The low basal expression of the TIG1 mRNA is particularly advantageous when used as an indicator of retinoid action in psoriatic skin culture systems. Assay systems employing this unique TIG1 expression profile are disclosed.

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