Interferon-gamma and tumour necrosis factor induce expression of major histocompatibility complex antigen on rat retinal astrocytes.
作者信息
el-Asrar A M, Maimone D, Morse P H, Lascola C, Reder A T
机构信息
Department of Ophthalmology, Mansoura University Hospital, Egypt.
出版信息
Br J Ophthalmol. 1991 Aug;75(8):473-5. doi: 10.1136/bjo.75.8.473.
Abstract
Cultured rat retinal astrocytes were tested by indirect immunofluorescence staining for their ability to express class I and II major histocompatibility complex (MHC) antigens under basal culture conditions and after three days of stimulation with two recombinant cytokines, rat interferon-gamma (IFN-gamma) and human tumour necrosis factor alpha (TNF alpha). Under basal culture conditions low levels of class I antigens were detected on a small percentage of cells, but there was no visible class II. IFN-gamma and TNF alpha stimulation enhanced class I expression. TNF alpha had no effect on class II expression, whereas IFN-gamma induced the expression of class II in a dose dependent manner. These findings suggest that retinal astrocytes might play a part in immunological events occurring in the retina.
摘要
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