Analysis of HLA-G gene expression in b-lymphocytes from chronic lymphocytic leukemia patients
IBJ-Iranian Biomedical Journal. 2007; 11 (2): 125-129
em Inglês
| IMEMR
| ID: emr-104677
ABSTRACT
The human leukocyte antigen G [HLA-G] molecule exhibits limited tissue distribution, low polymorphism and alternative splicings that generate seven HLA-G isoforms. HLA-G exerts multiple immunoregulatory functions. Recent studies indicate an ectopic up-regulation in tumor cells that may favor their escape from anti-tumor immune responses. This study it is an effort to clarify the presence of HLA-G in B-cell chronic lymphocytic leukemia [B-CLL] patients. HLA-G mRNA expression was studied in a pilot study in circulating B-CLL and also healthy controls by reverse transcription [RT]-PCR using a set of pan-HLA-G primers. RT-PCR was performed on B-cells from 74 B-CLL patients and 12 healthy controls. The data showed HLA-G gene expression in 20% of the B-CLL patients. No expression of HLA-G could be detected in the healthy control group. These data suggest that HLA-G is expressed at the gene level in B cells from B-CLL patients but not in B cells from healthy controls. Further study is required to clarify the role of HLA-G as a regulatory factor that could affect immune response in B-CLL patients
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IMEMR (Mediterrâneo Oriental)
Assunto principal:
Polimorfismo Genético
/
RNA Mensageiro
/
Linfócitos B
/
Antígenos de Histocompatibilidade Classe I
/
Leucemia Linfocítica Crônica de Células B
/
Expressão Gênica
/
Reação em Cadeia da Polimerase Via Transcriptase Reversa
Limite:
Feminino
/
Humanos
/
Masculino
Idioma:
Inglês
Revista:
Iran. Biomed. J.
Ano de publicação:
2007
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