title: Thalidomide prevents the progression of peritoneal fibrosis in mice.
abstract: Thalidomide is clinically recognized as a therapeutic agent for multiple myeloma and has been known to exert anti-angiogenic actions. Recent studies have suggested the involvement of angiogenesis in the progression of peritoneal fibrosis. The present study investigated the effects of thalidomide on the development of peritoneal fibrosis induced by injection of chlorhexidine gluconate (CG) into the mouse peritoneal cavity every other day for 3 weeks. Thalidomide was given orally every day. Peritoneal tissues were dissected out 21 days after CG injection. Expression of CD31 (as a marker of endothelial cells), proliferating cell nuclear antigen (PCNA), vascular endothelial growth factor (VEGF), α-smooth muscle actin (as a marker of myofibroblasts), type III collagen and transforming growth factor (TGF)-β was examined using immunohistochemistry. CG group showed thickening of the submesothelial zone and increased numbers of vessels and myofibroblasts. Large numbers of VEGF-, PCNA-, and TGF-β-positive cells were observed in the submesothelial area. Thalidomide treatment significantly ameliorated submesothelial thickening and angiogenesis, and decreased numbers of PCNA- and VEGF-expressing cells, myofibroblasts, and TGF-β-positive cells. Moreover, thalidomide attenuated peritoneal permeability for creatinine, compared to the CG group. Our results indicate the potential utility of thalidomide for preventing peritoneal fibrosis.
authors: Second Department of Internal Medicine, Nagasaki University School of Medicine.
authors: Hideyuki
authors: H
authors: Arai
authors: Akira
authors: A
authors: Furusu
authors: Tomoya
authors: T
authors: Nishino
authors: Yoko
authors: Y
authors: Obata
authors: Yuka
authors: Y
authors: Nakazawa
authors: Masayuki
authors: M
authors: Nakazawa
authors: Misaki
authors: M
authors: Hirose
authors: Katsushige
authors: K
authors: Abe
authors: Takehiko
authors: T
authors: Koji
authors: Shigeru
authors: S
authors: Kohno
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