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Mls determinants recognized by T cells.

R Abe1, R J Hodes

  • 1Immunology Branch, National Cancer Institute, Bethesda, Maryland 20892.

Journal of Immunogenetics
|February 1, 1988
PubMed
Summary
This summary is machine-generated.

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The minor lymphocyte stimulatory locus (Mls) system has distinct Mlsa and Mlsc determinants, clarifying Mls polymorphism. Mlsd determinants are a combination of Mlsa and Mlsc, not independent types.

Area of Science:

  • Immunology
  • Genetics
  • T cell biology

Background:

  • The minor lymphocyte stimulatory locus (Mls) determinants (Mlsa, Mlsb, Mlsc, Mlsd) and their relationships are poorly understood.
  • Previous research suggested Mls might comprise a single allele due to cross-reactivity and varying stimulatory capacities.

Purpose of the Study:

  • To clarify the nature of Mls determinants by investigating the distinctness of Mlsa, Mlsc, and Mlsd.
  • To determine if polymorphism exists within the Mls system.

Main Methods:

  • Generation of T cell clones specifically reactive to Mlsa, Mlsc, and Mlsd determinants.
  • Extensive genetic studies to define the specificities of these Mls-reactive T cell clones.
  • Primary mixed lymphocyte response assays.

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Main Results:

  • T cell clones demonstrated that Mlsa and Mlsc determinants are distinct, confirming polymorphism within the Mls system.
  • Mlsd determinants were found to be composed of both Mlsa and Mlsc determinants.
  • T cell responses against Mlsd were identified as the combined responses against Mlsa and Mlsc.

Conclusions:

  • The Mls system exhibits polymorphism with distinct Mlsa and Mlsc determinants.
  • Mlsd is not an independent Mls type but rather a composite of Mlsa and Mlsc determinants.