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Serologically detected lymphocyte antigens in Holstein cattle
Animal Blood Groups and Biochemical Genetics
|January 1, 1977
Summary
Researchers identified cattle lymphocyte antigens using sera from cows. This study reveals significant polymorphism and heritability of these antigens, offering insights into cattle immunology.
Area of Science:
- Veterinary Immunology
- Animal Genetics
Background:
- Lymphocyte antigens play a crucial role in immune responses and compatibility.
- Understanding cattle lymphocyte antigen (CLA) polymorphism is vital for breeding and transplantation.
Purpose of the Study:
- To characterize cattle lymphocyte antigens using antilymphocytotoxic sera.
- To investigate the polymorphism and inheritance patterns of CLAs in Holstein cattle.
Main Methods:
- Testing lymphocytes from 103 Holstein cattle with 11 antilymphocytotoxic sera.
- Analyzing reaction patterns, including parent-offspring data, to identify CLA alleles.
- Comparing sera from immunized and non-immunized parous cows.
Main Results:
- Sera from non-immunized parous cows showed specific antibodies, useful for detecting CLA polymorphism.
- Four whole blood-immunized sera demonstrated broad lymphocytotoxicity.
- Analysis led to the postulation of several CLA alleles, indicating high polymorphism.
- CLA are suggested to be inherited traits.
Conclusions:
- Cattle lymphocyte antigens are highly polymorphic and heritable.
- Sera from non-immunized parous cows are a valuable, accessible resource for CLA characterization.
- This research provides a foundation for further studies in cattle immune genetics.