The Korean journal of internal medicine · 2003
Changes in serum cytokine concentration: a morphological study of liver cirrhosis induced by common bile duct ligation in rats.
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Lee Byung Seok, Kim Nam Jae, Jeong Hyun Yong, Lee Heon Young, Kang Dae Young, Noh Seung Moo
Аннотация
BACKGROUND: Liver cirrhosis is a diffuse hepatic fibrosis, and nodule formation. The transforming growth factor-beta 1 (TGF-beta 1) and interleukin-10 (IL-10) are very important cytokines in hepatic fibrogenesis. The aim of this study was to examine the relationship between the changes of the serum cytokines and morphological changes following common bile duct ligation in experimental rats.
METHODS: Common bile ducts of fifty male Sprague-Dawley rats were ligated and seven male rats were set aside as controls. Five rats each were sacrificed in 1, 2, 4, 6, 8, and 10 experimental weeks. Light microscopic studies and liver function tests were performed during the above experimental weeks. The levels of serum TGF-beta 1 and IL-10 were analyzed by ELISA. Also, alpha smooth muscle actin (alpha-SMA) immunohistochemical stains were performed.
RESULTS: On the eighth week after common bile duct ligation, most hepatic lobular areas had been replaced by proliferated bile ducts and fibrous tissue (typical biliary cirrhosis). Serum TGF-beta 1 levels between the control group and the common bile duct ligation group showed statistically significant changes. The alpha-SMA was stained at proliferated bile ducts. These findings were correlated with each other.
CONCLUSION: Thus, this experiment may clarify our understanding of the mechanism in liver fibrogenesis. Also, indicated is a need to explore the therapeutic potential of these cytokines as anti-fibrotic agents.
METHODS: Common bile ducts of fifty male Sprague-Dawley rats were ligated and seven male rats were set aside as controls. Five rats each were sacrificed in 1, 2, 4, 6, 8, and 10 experimental weeks. Light microscopic studies and liver function tests were performed during the above experimental weeks. The levels of serum TGF-beta 1 and IL-10 were analyzed by ELISA. Also, alpha smooth muscle actin (alpha-SMA) immunohistochemical stains were performed.
RESULTS: On the eighth week after common bile duct ligation, most hepatic lobular areas had been replaced by proliferated bile ducts and fibrous tissue (typical biliary cirrhosis). Serum TGF-beta 1 levels between the control group and the common bile duct ligation group showed statistically significant changes. The alpha-SMA was stained at proliferated bile ducts. These findings were correlated with each other.
CONCLUSION: Thus, this experiment may clarify our understanding of the mechanism in liver fibrogenesis. Also, indicated is a need to explore the therapeutic potential of these cytokines as anti-fibrotic agents.
Предметные рубрики MeSH
ActinsAnimalsBiopsy, NeedleCommon Bile DuctCytokinesDisease Models, AnimalImmunohistochemistryInterleukin-10LigationLiver Cirrhosis, ExperimentalLiver Function TestsLiver RegenerationMaleRandom AllocationRatsRats, Sprague-DawleySensitivity and SpecificityTransforming Growth Factor betaTransforming Growth Factor beta1