Basic fibroblast growth factor eluting microspheres enhance distraction enterogenesis.

Abstract

PURPOSE:

The purpose of this study was to determine if distraction enterogenesis using self-expanding polycaprolactone (PCL) springs is a potential therapy for short bowel syndrome. Sustained release basic fibroblast growth factor (bFGF) microspheres have been shown to induce angiogenesis and intestinal regeneration in tissue engineered scaffolds. We hypothesized that the provision of bFGF-loaded microspheres would increase angiogenesis and thereby enhance the process of enterogenesis.

METHODS:

A 10-mm segment of rodent jejunum was isolated and an encapsulated PCL spring inserted. Blank or bFGF-loaded microspheres were delivered to the segment. After 4weeks, jejunal segments were assessed for lengthening, morphology, quantification of blood vessels, and ganglia.

RESULTS:

Lengthened intestinal segments receiving bFGF microspheres demonstrated significantly increased microvascular density compared to those with blank microspheres. There were also significantly more submucosal and myenteric ganglia in the segments that received bFGF microspheres. Segments achieved similar lengthening and final muscular thickness in both blank and bFGF groups, but the bFGF microsphere caused a significant increase in luminal diameter of the jejunal segment.

CONCLUSION:

Sustained release bFGF microspheres enhanced distraction enterogenesis through improved vascularity. The synergy of growth factors such as bFGF with distraction enterogenesis may yield improved results for the future treatment of patients with short bowel syndrome.

• Authors: Joshua D Rouch, Andrew Scott, Ziyad B Jabaji, Elvin Chiang, Benjamin M Wu, Steven L Lee, Shant Shekherdimian, James C Y Dunn
• Journal: Journal of pediatric surgery (J Pediatr Surg) Vol. 51 Issue 6 Pg. 960-5 (Jun 2016) ISSN: 1531-5037 [Electronic] United States
• PMID: 26995517 (Publication Type: Journal Article)
• Copyright: Copyright © 2016 Elsevier Inc. All rights reserved.

Chemical References

• Polyesters
• polycaprolactone
• Fibroblast Growth Factors

Topics

• Animals
• Female
• Fibroblast Growth Factors (therapeutic use)
• Jejunum (surgery)
• Microspheres
• Models, Animal
• Polyesters
• Rats, Sprague-Dawley
• Short Bowel Syndrome (surgery)
• Tissue Expansion (methods)
• Tissue Expansion Devices
• Tissue Scaffolds