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Complement in human reproduction: activation and control

I A Rooney1, T J Oglesby, J P Atkinson

  • 1Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110.

Immunologic Research
|January 1, 1993
PubMed
Summary
This summary is machine-generated.

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The complement system plays a critical role in human reproduction. Complement-regulatory proteins on sperm and in reproductive tissues are likely essential for preventing infertility caused by complement-mediated damage.

Area of Science:

  • Reproductive immunology
  • Complement system biology
  • Human reproduction

Background:

  • The complement system's role in human reproduction is gaining attention.
  • Antisperm antibodies and complement in reproductive fluids suggest complement-mediated damage contributes to infertility.
  • Complement activation occurs in the fetoplacental unit, indicated by IgG and complement deposition.

Purpose of the Study:

  • To review the interaction of the complement system with reproductive cells and tissues.
  • To emphasize the function of complement-controlling proteins in reproduction.

Main Methods:

  • Review of current scientific literature on the complement system in reproduction.
  • Analysis of the presence and function of complement-regulatory proteins.

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Main Results:

  • Complement-regulatory proteins, including decay-accelerating factor, membrane cofactor protein, and CD59, are found on spermatozoa and in extrafetal tissues.
  • These regulatory proteins are likely crucial for normal reproductive processes.

Conclusions:

  • The complement system significantly influences reproductive outcomes.
  • Complement-regulatory proteins are essential for protecting reproductive cells and tissues from complement-mediated damage, thus playing a key role in fertility.