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Experimental allergic encephalomyelitis in agammaglobulinemic chickens
Science (New York, N.Y.)
|December 1, 1967
Summary
Antibodies are not required for the development of experimental allergic encephalomyelitis. Agammaglobulinemic chickens, lacking antibodies, developed allergic encephalomyelitis lesions similarly to control chickens after bovine spinal cord immunization.
Area of Science:
- Immunology
- Neuroscience
- Veterinary Pathology
Background:
- Experimental allergic encephalomyelitis (EAE) is an autoimmune disease model.
- The role of antibodies in EAE pathogenesis has been debated.
- B-cells and antibody production are typically implicated in autoimmune responses.
Purpose of the Study:
- To investigate the necessity of antibodies for EAE development.
- To determine if agammaglobulinemic chickens can develop EAE.
- To elucidate the role of humoral immunity in EAE.
Main Methods:
- White Leghorn chickens underwent bursectomy and irradiation to induce agammaglobulinemia.
- Agammaglobulinemic and control chickens were immunized with bovine spinal cord and Freund's adjuvant.
- Clinical signs and lesion severity of EAE were assessed.
Main Results:
- Agammaglobulinemic chickens developed EAE lesions.
- The frequency and intensity of EAE lesions were comparable between agammaglobulinemic and control groups.
- This suggests a T-cell mediated mechanism is sufficient for EAE.
Conclusions:
- Antibodies are not essential for the induction of experimental allergic encephalomyelitis.
- Cell-mediated immunity plays a crucial role in EAE pathogenesis.
- These findings challenge the traditional view of antibody involvement in this disease model.