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Paper Information

Journal:   IRANIAN JOURNAL OF ALLERGY, ASTHMA AND IMMUNOLOGY (IJAAI)   MARCH 2008 , Volume 7 , Number 1 ; Page(s) 7 To 12.
 
Paper: 

EXPRESSION OF HLA-G IN THE SKIN OF PATIENTS WITH PEMPHIGUS VULGARIS

 
 
Author(s):  YARI F., ZAVARAN HOSSEINI A., NEMAT GORGANI MOHSEN, KHORAMIZADEH MOHAMMAD REZA, MANSOURI PARVIN, KAZEMNEJAD ANOUSHIRAVAN
 
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Abstract: 

Studies on HLA-G, a nonpolymorphic antigen of non-classical HLA class I, is of basic and clinical significance. In the present study, the expression of HLA-G proteins in the human skin tissue sections of normal and autoimmune pemphigus vulgaris (PV) individuals were investigated using monoclonal antibodies.

The antibodies recognized both membrane-bound and soluble isoforms of HLA-G. RT-PCR was performed to assess the patterns of HLA-G mRNA transcripts in the epidermal cells of PV and normal subjects.

HLA-G expression could only be detected at transcriptional level in normal skin tissues. However cells derived from PV subjects expressed detectable HLA-G molecules at both transcriptional and translational levels. In addition, the RT-PCR patterns of HLA-G amplification revealed a reduction in HLA-G2 and an increase in HLA-G1 transcripts in epidermal cells of PV patients as compared to normal cells.  These observations further support suggestions in the literature regarding the role of HLA-G in induction of tolerance in autoimmune individuals.

 
Keyword(s): AUTOIMMUNE DISEASE, HLA-G, PEMPHIGUS VULGARIS, SKIN
 
References: 
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