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  • Title: [The effect of heat shock before rat partial hepatectomy on HSC70/HSP68 expression and phosphatase activities].
    Author: Xu CS, Lu AL, Xia M, Li XY, Li YH, Zhao XY.
    Journal: Shi Yan Sheng Wu Xue Bao; 2000 Mar; 33(1):1-11. PubMed ID: 12548846.
    Abstract:
    The contribution and content of the continuous heat shock protein 70/induced heat shock protein 68 (HSC70/HSP68), the contribution, variety and activity of acid phosphatases (ACP) and alkaline phosphatases (AKP) had been analysed qualitatively and quantitatively during the liver regeneration after 2/3 hepatectomy (PH) and HS (heat shock at 46 degrees C for 30 min, recovery for 8 h), which were compared with the results only by HS and only by PH. It was shown that the three kinds of treatment all can increase the activity of ACP, AKP and the expression of HSC70/HSP68, but with different change pattern. A further analysis show that after HS-PH the enhanced activity of ACP is related with that of 140 kD phosphatases, the enhanced activity of AKP is associated with that of 140 kD and 160-180 kD phosphatases. It can be reckoned from the results that ACP, AKP and HSC70/HSP68 all act on the heat shock response of hepatocyte and liver regeneration, and may take part in signal transduction in these processes, but ACP may play a dominant role in the start of hepatocyte multiplication, AKP and HSC70/HSP68 may play a dominant role in cytokineses.
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