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Related Experiment Videos

Spontaneous and polyclonal Ig secretion by circulating B cells after surgery.

F Di Padova1, M Durig, C Di Padova

  • 1Second Medical Clinic, University of Milan School of Medicine, Italy.

Surgery
|May 1, 1988
PubMed
Summary

Surgery can alter the immune response, causing B cells to produce antibodies against various bacterial antigens. This study reveals a polyclonal antibody response post-surgery, reflecting patients' prior immune history.

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Area of Science:

  • Immunology
  • Surgical Medicine

Background:

  • Post-surgical immune response abnormalities are common, often physiological rather than pathological.
  • B cell compartment alterations are observed following surgical interventions.

Purpose of the Study:

  • To investigate the impact of elective surgery on the B cell compartment.
  • To analyze the specificity of antibodies produced by B cells post-surgery.

Main Methods:

  • Analysis of circulating B cells 7 days after elective surgery.
  • In vitro spontaneous secretion of IgG and IgA antibodies by lymphoblastoid B cells.
  • Detection of antibody specificity against bacterial antigens (tetanus toxoid, pneumococcal capsular polysaccharides, E. coli lipopolysaccharides).

Main Results:

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  • Appearance of circulating lymphoblastoid B cells post-surgery.
  • Spontaneous in vitro secretion of IgG and IgA antibodies by these cells.
  • Detection of a polyclonal antibody response against multiple bacterial antigens.

Conclusions:

  • Elective surgery profoundly affects the B cell compartment in healthy individuals.
  • The observed polyclonal antibody response may be triggered by antigens from traumatized tissues or microbial translocation.
  • This response appears linked to the patient's previous immunological experience.