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Updated: Aug 8, 2026

HLA-Ig Based Artificial Antigen Presenting Cells for Efficient ex vivo Expansion of Human CTL
Published on: April 11, 2011
The relationship between human sperm fertilizing capacity and histocompatibility linked antigen (HLA) alleles gene
P J Chan1, B C Su, T H Kalugdan
1Department of Gynecology and Obstetrics, Loma Linda University School of Medicine, CA 92350.
Abstract:
Heterodimer membrane glycoproteins expressed from hypervariable genes located in the histocompatibility linked antigen (HLA) class II genes on chromosome 6 have been shown to induce activation of lymphocytes and are involved in human sperm binding processes. The objective was to identify an association between HLA-DQA1, -DRB1 or -DPB1 genes and sperm kinematic parameters and sperm penetration of oocytes. The results showed reduced sperm hyperactivation and decreased sperm penetration of zona-free oocytes when the HLA-DRB1 allele was present. The reduced hyperactive motility was not attributed to alterations in sperm kinematic parameters. In contrast, the HLA-DPB1 gene only affected sperm count, linearity of movement and sperm head dimensions. HLA-DQA1 had no effect on the sperm parameters. The data suggest a link between HLA-DRB1 and HLA-DPB1 genes and sperm concentration, sperm movement characteristics and fertilizing capacity.
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