Abstract | BACKGROUND: The mechanism of the omental response to injury remains poorly defined. This study investigates the omental reaction to a foreign body, examining the role of a chemokine ligand/receptor pair known to play a crucial role in angiogenesis and wound healing. METHODS: RESULTS: During the 14-day study period, serial ultrasonography showed a 20-fold increase in omental thickness, and enzyme-linked immunosorbent assay revealed a 4-fold increase in SDF-1alpha concentration in local wound fluid. Omental vessel count and vascular surface area were 8- to 10-fold higher in reactive omentum. Immunohistochemistry showed nearly complete replacement of control omental fat with CXC chemokine receptor 4 (CXCR4)-positive cells by day 14. CONCLUSIONS: Activated omentum, important in the SDF-1alpha/CXCR4 axis, may serve as an intraperitoneal reservoir for recruitment of circulating bone marrow-derived cells vital to healing.
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Authors | Naveed U Saqib, Paul G McGuire, Thomas R Howdieshell |
Journal | American journal of surgery
(Am J Surg)
Vol. 200
Issue 2
Pg. 276-82
(Aug 2010)
ISSN: 1879-1883 [Electronic] United States |
PMID | 20591406
(Publication Type: Journal Article)
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Copyright | 2010 Elsevier Inc. All rights reserved. |
Chemical References |
- Biocompatible Materials
- Chemokine CXCL12
- Receptors, CXCR4
- Silicones
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Topics |
- Animals
- Biocompatible Materials
- Chemokine CXCL12
(analysis, biosynthesis)
- Enzyme-Linked Immunosorbent Assay
- Female
- Foreign-Body Reaction
(physiopathology)
- Hernia, Ventral
(physiopathology)
- Neovascularization, Pathologic
- Omentum
(chemistry, diagnostic imaging, metabolism)
- Receptors, CXCR4
(analysis)
- Silicones
- Swine
- Ultrasonography
- Wound Healing
(physiology)
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