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Molecular genetics of antigenic variation.

¹The Netherlands Cancer Institute, Amsterdam.

Immunology Today

|March 1, 1991

Summary

Parasites use antigenic variation to evade immune responses by switching surface coats. This review details the molecular mechanisms in bacteria and protozoa.

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Area of Science:

Parasitology
Microbiology
Immunology

Background:

Antigenic variation is a key survival strategy for parasites.
It involves changing surface proteins to evade host immune detection.
This requires a repertoire of surface coats and mechanisms for switching them.

Purpose of the Study:

To review the molecular principles of antigenic variation.
To discuss examples in bacteria (Borrelia, Neisseria) and protozoa (African trypanosomes).

Main Methods:

Literature review and synthesis of existing research.
Focus on molecular mechanisms of coat exchange.

Main Results:

Molecular principles are well-understood in selected species.
Mechanisms involve complex genetic and molecular processes.

Conclusions:

Antigenic variation is a sophisticated immune evasion tactic.
Understanding these mechanisms is crucial for parasite control.

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