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Related Experiment Video

Updated: Jul 12, 2026

Extraction of Tissue Antigens for Functional Assays
08:32

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Published on: September 10, 2012

Immunological responses to exogenous insulin.

S Edwin Fineberg1, Thomas T Kawabata, Deborah Finco-Kent

  • 1Indiana University School of Medicine, Indianapolis, Indiana 46202, USA. efineber@iupui.edu

Endocrine Reviews
|September 6, 2007
PubMed
Summary

Therapeutic insulins are immunogenic, but severe complications are rare. Insulin antibodies (IAAs) can form but generally do not impact glucose control or diabetes complications.

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Area of Science:

  • Immunology
  • Endocrinology
  • Diabetes Research

Background:

  • Therapeutic insulins, despite purity, remain immunogenic in humans.
  • Severe immunological complications are infrequent, affecting a small patient subset.
  • Insulin autoantibodies (IAAs) can be detected in specific patient groups, indicating potential breaches in immune tolerance.

Purpose of the Study:

  • To review the immunogenicity of therapeutic insulins.
  • To assess the clinical significance of insulin antibodies (IAs) in diabetes management.
  • To examine the relationship between IAs and diabetes complications, particularly with novel insulin formulations.

Main Methods:

  • Literature review and synthesis of existing studies on insulin immunogenicity and antibody formation.
  • Analysis of factors influencing humoral responses to exogenous insulin.
  • Evaluation of evidence linking IAs to glycemic control, insulin requirements, and diabetes-related complications.

Main Results:

  • While insulins are immunogenic, severe reactions are rare.
  • Factors like immune response genes, age, and insulin delivery site influence antibody susceptibility.
  • Limited evidence supports a link between IAs and impaired glucose control, increased insulin needs, hypoglycemia, or long-term complications like nephropathy, retinopathy, and neuropathy.
  • Studies do not support a connection between IAs and fetal risk in pregnant women with diabetes.

Conclusions:

  • Therapeutic insulins elicit an immune response, but significant clinical sequelae are uncommon.
  • Current evidence does not establish a causal relationship between insulin antibodies and adverse clinical outcomes in most diabetic patients.
  • Further research is warranted, especially concerning new insulin delivery systems and formulations.