Systemic administration of autologous adipose-derived mesenchymal stem cells alleviates hepatic ischemia-reperfusion injury in rats.

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Title:	Systemic administration of autologous adipose-derived mesenchymal stem cells alleviates hepatic ischemia-reperfusion injury in rats.
Authors:	Sun CK;Chang CL;Lin YC;Kao YH;Chang LT;Yen CH;Shao PL;Chen CH;Leu S;Yip HK
Date:	2012-04
Issue Date:	2012-09-05T07:12:05Z (UTC)
Abstract:	OBJECTIVES: Mesenchymal stem cells have previously been shown to offer significant therapeutic benefit in ischemic organ injuries. This study aimed at investigating the therapeutic role of adipose tissue-derived mesenchymal stem cells in hepatic ischemia-reperfusion injury and the underlying mechanisms. DESIGN: Adult male Fisher rats (n = 30) were equally divided into three groups (group 1: Sham-operated normal controls; group 2: Ischemia-reperfusion injury with intravenous fresh culture medium; group 3: Ischemia-reperfusion injury with intravenous adipose tissue-derived mesenchymal stem cells). Ischemia-reperfusion injury was induced by occluding the vascular supplies of left lobe liver for 60 minutes followed by reperfusion for 72 hrs. Adipose tissue-derived mesenchymal stem cells (1.2 × 106) were administered through tail vein immediately after reperfusion and at 6 hrs and 24 hrs after reperfusion in group 3. All animals were sacrificed 72 hrs after reperfusion. SETTING: Animal laboratory at a medical institute. MEASUREMENTS AND MAIN RESULTS: Histologic features, plasma aspartate aminotransferase, hepatic cytokine profile, oxidative stress, and terminal deoxynucleotidyltransferase-mediated dUTP nick end labeling were analyzed. Seventy-two hrs after reperfusion, plasma aspartate aminotransferase, hepatic oxidative stress, messenger RNA expressions of tumor necrosis factor-a, transforming growth factor-b, interleukin-1b, interleukin-6, endothelin-1, matrix metalloproteinase-9, plasminogen activator inhibitor-1, Bax and caspase-3, protein expression of intercellular adhesion molecule as well as the number of apoptotic nuclei were significantly increased in group 2 compared with group 3, whereas messenger RNA expressions of endothelial nitric oxide synthase, Bcl-2, interleukin-10, protein expressions of reduced nicotinamide-adenine dinucleotide phosphate:quinone oxidoreductase 1, and heme oxygenase-1 were lower in group 2 than group 3. CONCLUSIONS: The results showed that systemic adipose tissue-derived mesenchymal stem cell administration significantly preserved hepatocyte integrity and suppressed inflammatory responses, oxidative stress, and apoptosis in a rodent model of hepatic ischemia-reperfusion injury.
Relation:	Crit Care Med. 2012 Apr;40(4):1279-90.
Appears in Collections:	[Department of Nursing] Papers

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