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Related Experiment Videos

Immune function and dysfunction. A primer for the radiologist.

J T Rubin1, M T Lotze

  • 1Section of Oncologic Surgery, University of Pittsburgh Medical Center, Pennsylvania.

Radiologic Clinics of North America
|May 1, 1992
PubMed
Summary
This summary is machine-generated.

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The immune system protects against infection through various defenses, but acquired immunodeficiencies increase susceptibility to pathogens. Advances in immunologic reagents offer new ways to manage infections in immunocompromised patients.

Area of Science:

  • Immunology
  • Infectious Diseases
  • Biotechnology

Background:

  • The immune system, comprising lymphocytes and the complement system, distinguishes self from non-self to prevent infections.
  • Acquired immunodeficiencies, often due to cancer treatments, immunosuppressants, HIV, or malnutrition, significantly increase infection risk.
  • The type and severity of infections in immunocompromised individuals depend on the specific immune defect.

Purpose of the Study:

  • To review the mechanisms of immune defense and the consequences of immunodeficiency.
  • To highlight the role of various immune components, including lymphocytes and complement, in host defense.
  • To discuss recent advances in immunologic reagents and their potential applications in managing infections in immunocompromised patients.

Main Methods:

Related Experiment Videos

  • Review of existing literature on immunology, immunodeficiency, and therapeutic interventions.
  • Analysis of the impact of specific immune defects (e.g., granulocytopenia, complement deficiency, T cell dysfunction) on infection susceptibility.
  • Examination of novel immunologic reagents, including monoclonal antibodies and recombinant cytokines, derived from hybridoma and recombinant DNA technology.

Main Results:

  • Dysfunction in immune effectors like granulocytes, complement, and T cells leads to specific patterns of opportunistic infections.
  • Acquired immunodeficiencies are more common than congenital defects, with significant global impact from HIV and malnutrition.
  • Immunologic reagents such as anti-CD3 monoclonal antibody, anti-TNF-alpha, and recombinant cytokines show promise in managing transplant rejection, sepsis, and cancer.

Conclusions:

  • Understanding the immune system's intricate defenses is crucial for recognizing and treating infections in immunocompromised individuals.
  • Emerging immunologic reagents offer potential therapeutic strategies to enhance immune responses and improve outcomes for patients with compromised immunity.
  • Continued research into immunologic manipulation holds promise for advancing the care of immunocompromised populations worldwide.