In recent years,with the accelerating development of the socialist market economy and the process of globalization,corruption has appeared and become more and more serious,causing serious harm to the interests of the ...In recent years,with the accelerating development of the socialist market economy and the process of globalization,corruption has appeared and become more and more serious,causing serious harm to the interests of the state and people,so the construction of a clean and honest government draws people’s attention.The doctrine of evil human nature of Syun Zih explained profound theories concerning the nature of human beings and the view of interest with simple language,from which the origin of the construction of a clean and honest government could be found.As a result,we can have a right starting point,representing the fundamental interests of the overwhelming majority of people in the long-term exploration.The doctrine of evil human nature of Syun Zih plays an irreplaceable role in the correct understanding and analysis of the construction of a clean and honest government and the construction of the incorrupt government culture.展开更多
Using human umbilical vein endothelial cells (HUVEC) and porcine aortic endothelial cells (PAEC) as target cells, human peripheral blood NK cells (PBNK) and NK92 cells as effector cells, the differential cytotoxicitie...Using human umbilical vein endothelial cells (HUVEC) and porcine aortic endothelial cells (PAEC) as target cells, human peripheral blood NK cells (PBNK) and NK92 cells as effector cells, the differential cytotoxicities of NK cells to allo- and xeno-endothelial cells were studied. The influence of MHC class I molecules on the cytotoxicity of human NK cells was assayed using acid treatment, and blockades of MHC class I antigens, CD94 and KIR (NKB1). The results indicated that the killing of PAEC by the two kinds of NK cells is higher than that of HUVEC. After acid-treatment, the cytotoxicity of the two kinds of NK cells to PAEC and HUVEC is significantly enhanced, but the magnitude of the enhancement is different. The enhancement of NK killing to acid treated HUVEC is much greater than that to PAEC. Blockade of CD94 mAb did not alter the NK cytotoxicity, while blockade of NKB1 mAb enhanced the cytotoxicity of PBNK to HUVEC and PAEC by 95% and 29% respectively. The results above suggested that the differential recognition of MHC I molecules of xeno-endothelial cells by human NK cells could be the major reason for higher NK cytotoxicity to PAEC. KIR might be the primary molecule that transduced inhibitory signals when endothelial cells were injured by NK cells.展开更多
文摘In recent years,with the accelerating development of the socialist market economy and the process of globalization,corruption has appeared and become more and more serious,causing serious harm to the interests of the state and people,so the construction of a clean and honest government draws people’s attention.The doctrine of evil human nature of Syun Zih explained profound theories concerning the nature of human beings and the view of interest with simple language,from which the origin of the construction of a clean and honest government could be found.As a result,we can have a right starting point,representing the fundamental interests of the overwhelming majority of people in the long-term exploration.The doctrine of evil human nature of Syun Zih plays an irreplaceable role in the correct understanding and analysis of the construction of a clean and honest government and the construction of the incorrupt government culture.
文摘Using human umbilical vein endothelial cells (HUVEC) and porcine aortic endothelial cells (PAEC) as target cells, human peripheral blood NK cells (PBNK) and NK92 cells as effector cells, the differential cytotoxicities of NK cells to allo- and xeno-endothelial cells were studied. The influence of MHC class I molecules on the cytotoxicity of human NK cells was assayed using acid treatment, and blockades of MHC class I antigens, CD94 and KIR (NKB1). The results indicated that the killing of PAEC by the two kinds of NK cells is higher than that of HUVEC. After acid-treatment, the cytotoxicity of the two kinds of NK cells to PAEC and HUVEC is significantly enhanced, but the magnitude of the enhancement is different. The enhancement of NK killing to acid treated HUVEC is much greater than that to PAEC. Blockade of CD94 mAb did not alter the NK cytotoxicity, while blockade of NKB1 mAb enhanced the cytotoxicity of PBNK to HUVEC and PAEC by 95% and 29% respectively. The results above suggested that the differential recognition of MHC I molecules of xeno-endothelial cells by human NK cells could be the major reason for higher NK cytotoxicity to PAEC. KIR might be the primary molecule that transduced inhibitory signals when endothelial cells were injured by NK cells.
