Introduction: To investigate whether HLA-G gene polymorphism is associated with adverse pregnancy outcome, we screened exons 2, 3, 4 of HLA-G gene in 59 women with reproductive failure and 36 fertile women. The HLA-G 10108 allele was more common in the group of examined women than in women from the control group (OR = 5,9; p = 0,09), but this difference was not statistically significant.
Results: We conclude that the HLA-G 10108 allele might influence pregnancy outcome in the Polish population, but further studies are needed in this regard.
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Ocul Immunol Inflamm
January 2025
Departamento de Inmunología, Oftalmología y ORL, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain.
Purpose: HLA-G is a non-classical HLA class I gene encoding a molecule endowed with immunomodulatory properties, playing important immunosuppressive and tolerogenic roles in immuno-privileged organs. Fluctuations in its expression levels have been correlated with the predisposition to autoinflammatory disorders, notably uveitis, characterized by inflammation of the uvea. In the present work, DNA was obtained from saliva samples of 147 Spanish patients with uveitis, with subsequent analysis focusing on the distribution of polymorphisms within the 3'UTR region of the gene (a region known to modulate the expression of the HLA-G molecule).
View Article and Find Full Text PDFSci Rep
January 2025
NMC Genetics India Pvt. Ltd., Gurugram, Haryana, 122001, India.
Rising cases of type 2 diabetes (T2D) in India, especially in metropolitan cities is an increasing concern. The individuals that were most affected are young professionals working in the corporate sector. However, the corporate sector has remained the least explored for T2D risk predisposition.
View Article and Find Full Text PDFHLA
December 2024
Institute for Transfusion Medicine, University Hospital Essen, University Duisburg-Essen, Essen, Germany.
HLA-G, an important immune-checkpoint (IC) molecule that exerts inhibitory signalling on immune effector cells, has been suggested to represent a key player in regulating the immune response to Severe Acute Respiratory Syndrome Coronavirus Type 2 (SARS-CoV-2). Since specific single-nucleotide polymorphisms (SNP) in the HLA-G 3'untranslated region (UTR), which arrange as haplotypes, are crucial for the regulation of HLA-G expression, we analysed the contribution of these genetic variants as host factors in SARS-CoV-2 infection during acute and post-acute phases. HLA-G gene polymorphisms in the 3'UTR were investigated by sequencing in an unvaccinated Coronavirus Disease 2019 (COVID-19) cohort during acute SARS-CoV-2 infection (N = 505) and in the post-acute phase (N = 253).
View Article and Find Full Text PDFFront Immunol
December 2024
Department of Gastroenterology, All India Institute of Medical Sciences, New Delhi, India.
Background: Human leukocyte antigen-G (HLA-G) is a cancer-associated immune checkpoint protein implicated in tumor-driven immune escape mechanisms. This study was undertaken to determine genetic variations at the 3'-UTR of the HLA-G gene that may alter its expression, identify risk alleles and genotypes for their association with hepatocellular carcinoma (HCC), and treatment responses in the Indian population.
Objectives: Case-control genetic association study of HLA-G gene UTR polymorphisms with HCC and response to locoregional therapy (LRT).
Immunobiology
December 2024
Laboratory of Microorganisms and Active Biomolecules (LR03ES03), Sciences Faculty of Tunis, University of Tunis El Manar, Tunis, Tunisia. Electronic address:
Background: Gastric cancer (GC) remains a serious health concern and is characterized by a multifactorial etiology involving both genetic and epigenetic factors. The aim of the current study was to examine the relationship between Human leukocyte antigen (HLA)-G 3'UTR polymorphisms and the expression of HLA-G in both tumor tissues and plasma samples from patients with GC in the Tunisian population.
Methods: HLA-G 3'UTR polymorphisms (14pb Insertion/deletion and + 3142C/G) were identified by polymerase chain reaction (PCR) or Sanger sequencing.
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