PMID: 9435938Jan 1, 1997Paper

Endogenous TGF-beta 1 and TGF-beta 2 are not essential for epithelialization and neovascularization in the hairless mouse ear wound model

Annales Chirurgiae Et Gynaecologiae
A Eskild-JensenV E Hjortdal

Abstract

TGF-beta stimulates neovascularization and epithelialization in healing wounds, yet relatively little is known about the mechanisms involved. Using the hairless mouse ear wound model, we studied the effects endogenous TGF-beta 1 and TGF-beta 2 have on epithelialization and neovascularization following the application of neutralizing antibodies. Forty-three adult male hairless mice had an excisional wound made on the dorsum of each ear. Using vital microscopy, epithelialization and neovascularization were measured every third day until completion. TGF-beta 1 and TGF-beta 2 antibody, control-IgG, or phosphate buffered saline (PBS) were applied to the wounds. Excisional wounds treated with anti-TGF-beta 1 and anti-TGF-beta 2, IgGcontrol IgG, and PBS epithelialized in 11.2 +/- 0.5 days (N = 22), 10.9 +/- 0.6 days (N = 17), and 10.6 +/- 0.6 days (N = 15), respectively and neovascularized in 27.9 +/- 0.5 days (N = 17), 27.1 +/- 0.8 days (N = 14), and 26.1 +/- 0.8 days (N = 10), respectively (mean +/- SEM). There were no significant differences in time to epithelialization and neovascularization between the three groups. Furthermore, there were no differences in the average time course of epithelialization and neovascularization betwe...Continue Reading

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