Lack of HLA-G soluble isoforms in Graves-Basedow thyrocytes and complete cDNA sequence of the HLA-G*01012 allele

M. J. Castro, P. Morales, M. Catálfamo, V. Fernández-Soria, B. Suárez, P. Varela, M. Pérez-Blas, M. Alvarez, D. Jaraquemada, A. Arnaiz-Villena

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Resum

The presence of HLA-G mRNA has been studied in thyroid follicular cells from autoimmune patients with Graves' disease. Investigating the possible role of the expression of the HLA-G gene in tissue inflammation, we have found four of the six HLA-G mRNA isoforms described: G1, G2, G3 and G4, but not the soluble ones G5 and G6. Soluble G isoforms may be responsible for inducing tolerance and inflammation control and their absence in autoimmune thyroid follicular cells may induce failure of such control. In addition, the complete coding sequence of HLA-G*01012 has been obtained from thyrocytes and it shows only four synonymous changes with respect to the HLA-G*01011 allele; this further supports the existence of an evolutionary pressure for invariance on HLA-G genes.
Idioma originalEnglish
Pàgines (de-a)311-315
RevistaEuropean Journal of Immunogenetics
Volum25
DOIs
Estat de la publicacióPublicada - 14 de set. 1998

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