Abstract
The recognition that HSC are provided with contractile properties represents a key acquisition in the knowledge of the biology of this cell typex1. Contraction of activated HSC occurs in vitro in response to different vasoconstrictors. This experimental evidence is representative of HSC contractile status in fibrotic liver, where contraction of activated HSC in response to various stimuli may have important implications in the pathogenesis of portal hypertension and in the contraction of mature scar tissue. Following the demonstration that culture-activated human and rat HSC are able to contract in response to different vasoconstrictors2, 3, the potential involvement of this cell type in the genesis and progression of portal hypertension has been postulated. The presence of a contractile cell type operating in liver sinusoids and in developing scar tissue reinforced the concept of a dynamic component for the increased intrahepatic resistance in cirrhotic liver modifiable by vasodilators4.
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Pinzani, M. (2004). The role of hepatic stellate cells/myofibroblasts. In: Groszmann, R.J., Bosch, J. (eds) Portal Hypertension in the 21st Century. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-1042-9_5
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DOI: https://doi.org/10.1007/978-94-007-1042-9_5
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