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Related Experiment Videos

Intestinal endocrine cells in radiation enteritis.

R Pietroletti1, J L Blaauwgeers, C W Taat

  • 1Department of Pathology, Academic Medical Centre, Amsterdam, The Netherlands.

Surgery, Gynecology & Obstetrics
|August 1, 1989
PubMed
Summary

Radiation enteritis significantly increases intestinal endocrine cells, particularly in the ileum and colon. This increase may contribute to radiation enteropathy symptoms and elevate carcinoma risk.

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Area of Science:

  • Gastroenterology
  • Endocrinology
  • Oncology

Background:

  • Radiation enteritis is a significant complication of pelvic radiotherapy.
  • The role of intestinal endocrine cells in radiation enteritis pathogenesis is not well understood.

Purpose of the Study:

  • To investigate the changes in intestinal endocrine cells in patients with radiation enteritis.
  • To compare endocrine cell populations in radiation enteritis specimens with control tissues.

Main Methods:

  • Analysis of 13 surgical specimens with radiation enteritis and matched controls.
  • Utilized Grimelius' silver staining and chromogranin immunostaining.
  • Quantified endocrine cells per unit length of muscularis mucosa.

Main Results:

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  • Chromogranin immunostaining revealed a statistically significant increase in endocrine cells in both the ileum and colon of radiation enteritis specimens compared to controls (p < 0.005).
  • Grimelius' staining also indicated an increase, but it did not reach statistical significance.
  • The observed increase in endocrine cells could be due to hyperplasia or a sparing phenomenon.

Conclusions:

  • Radiation enteritis is associated with a significant increase in intestinal endocrine cells.
  • These endocrine cell changes may play a role in the clinical manifestations of radiation enteropathy.
  • Increased endocrine cells might contribute to the elevated risk of intestinal carcinoma in chronic radiation enteritis.