Related Experiment Videos
[Serologically detected HY antigen and its regulation]
1Service de Cytologie, Cytogénétique et Biologie de la Reproduction, CHU Morvan, Brest.
Presse Medicale (Paris, France : 1983)
|April 4, 1992
Summary
The male-predominant H-Y antigen (HY Ag) is a surface glycoprotein linked to sexual differentiation. Its expression is typically tied to testicular presence but can be elevated in conditions without testes, influenced by hormones.
Area of Science:
- Immunogenetics
- Biochemistry
- Endocrinology
Context:
- The H-Y antigen (HY Ag) is a male-predominant surface glycoprotein involved in sexual differentiation.
- Its genetic locus is on chromosome 6, regulated by gonosomal genes.
- HY Ag expression is generally associated with the presence of testes.
Purpose:
- To elucidate the regulation and expression patterns of the H-Y antigen.
- To investigate the relationship between HY Ag and sexual differentiation abnormalities.
- To explore hormonal influences on HY Ag levels.
Summary:
- H-Y antigen (HY Ag) is a male-predominant surface glycoprotein encoded by a gene on chromosome 6, regulated by gonosomal genes.
- While typically linked to testicular presence in sexual differentiation abnormalities, elevated basal HY Ag levels can occur without testicular tissue, as seen in virilized females.
- Hormonal factors, including androgens in mammals and estrogens in birds, can modulate HY Ag levels, potentially altering expression from homogametic to heterogametic sex values.
Impact:
- Provides insights into the complex regulation of H-Y antigen expression.
- Contributes to understanding the pathophysiology of certain disorders of sexual differentiation.
- Highlights the role of hormonal milieu in modulating immune-related antigens.