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Methods for Quantitative Detection of Antibody-induced Complement Activation on Red Blood Cells
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Secondary antibody deficiency.

Sai S Duraisingham1, Matthew S Buckland, Sofia Grigoriadou

  • 1Immunology Department, Royal London Hospital, Barts Health NHS Trust, London, UK.

Expert Review of Clinical Immunology
|April 2, 2014
PubMed
Summary

Secondary antibody deficiencies, often caused by medications or malignancies, increase infection risk. Immunoglobulin therapy can effectively reduce infections in these patients.

Area of Science:

  • Immunology
  • Hematology
  • Nephrology

Background:

  • Secondary antibody deficiencies involve decreased antibody levels due to various factors.
  • Common causes include immunoglobulin loss, hematological malignancies, and immunosuppressive medications.
  • Increased infection risk is a known complication, particularly with hematological malignancies and immunosuppression.

Purpose of the Study:

  • To discuss common causes of secondary antibody deficiencies.
  • To explore the association between these deficiencies and infection-related outcomes.
  • To provide recommendations for screening and management.

Main Methods:

  • Literature review of secondary antibody deficiencies.
  • Analysis of infection risks in specific patient populations.

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  • Synthesis of current management strategies.

    • Main Results:

    • Identified key causes: renal/gastrointestinal loss, hematological malignancies, medications.
    • Confirmed increased infection risk in patients with hematological malignancies or on immunosuppressants.
    • Immunoglobulin replacement therapy demonstrates efficacy in reducing infections.

    Conclusions:

    • Secondary antibody deficiencies have diverse causes and significant infection risks.
    • Screening and proactive management are crucial for at-risk individuals.
    • Immunoglobulin replacement therapy is a valuable tool for managing infections.