Pediatric Surgery International

, Volume 27, Issue 2, pp 211–216 | Cite as

Nutritional supplementation with transforming growth factor-beta inhibits intestinal adaptation after massive small bowel resection in a rat

  • Igor Sukhotnik
  • Jorge G. Mogilner
  • Shani Ben Lulu
  • Yulia Bashenko
  • Ron Shaoul
  • Elena Chemodanov
  • Arnold G. Coran
Original Article

Abstract

Introduction

Transforming growth factor beta (TGF-β) has been shown to affect epithelial cell differentiation and proliferation through epithelial-mesenchymal and epithelial-immune cell interaction. In the present study, we evaluated the effect of TGF-β2-enriched polymeric diet (Modulen) on enterocyte turnover in a rat model of short bowel syndrome (SBS).

Methods

Male rats were divided into four groups: Sham rats and Sham-TGF-β rats underwent bowel transection, and were treated with TGF-β from the 4th postoperative day, SBS rats underwent a 75% bowel resection, and SBS-TGF-β rats underwent bowel resection and were treated with TGF-β-enriched diet similar to Group B. Parameters of intestinal adaptation, enterocyte proliferation and apoptosis were determined on day 15. Real-time PCR was used to determine Bax and Bcl-2 mRNA expression.

Results

Treatment of SBS animals with TGF-β2 supplemented diet led to a significant decrease (vs. SBS rats) in bowel weight in ileum (18%, P < 0.05), mucosal DNA content in jejunum (threefold decrease, P < 0.05) and ileum (2.5-fold decrease, P < 0.05), and mucosal protein in jejunum (twofold decrease, P < 0.05) compared to SBS-untreated animals (Group B). Treatment with TGF-β resulted in a mild decrease in enterocyte proliferation in jejunum (25%, P < 0.05) and ileum (18%, P < 0.05). A decreased cell apoptosis in the SBS-TGF-β group was accompanied by a decreased Bax and increased Bcl-2 mRNA expression.

Conclusions

In a rat model of SBS, dietary TGF-β inhibits intestinal adaptation. Decreased enterocyte proliferation is responsible for this effect.

Keywords

Short bowel syndrome Intestinal adaptation Transforming growth factor beta Enterocyte Turnover 

Notes

Acknowledgments

This work was supported by an Israel Science Foundation (ISF) research grant (No 1135/08).

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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Igor Sukhotnik
    • 1
    • 2
  • Jorge G. Mogilner
    • 2
  • Shani Ben Lulu
    • 1
  • Yulia Bashenko
    • 1
  • Ron Shaoul
    • 4
  • Elena Chemodanov
    • 3
  • Arnold G. Coran
    • 5
  1. 1.Laboratory of Intestinal Adaptation and Recovery, The Bruce Rappaport Faculty of MedicineTechnion-Israel Institute of TechnologyHaifaIsrael
  2. 2.Department of Pediatric Surgery BBnai Zion Medical CenterHaifaIsrael
  3. 3.Department of PathologyBnai Zion Medical CenterHaifaIsrael
  4. 4.Pediatric Gastroenterology and Nutrition Unit, Meyer Children’s HospitalRambam Medical CenterHaifaIsrael
  5. 5.Section of Pediatric SurgeryC.S. Mott Children’s Hospital and University of Michigan Medical SchoolAnn ArborUSA

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