Abstract: The present invention relates to the field of biotechnology and aims to provide a YAP1 gene-modified mesenchymal stem cell and a method for preparing the same. The mesenchymal stem cell is a primary mesenchymal stem cell modified by overexpressed YAP1 gene, wherein the YAP1 gene is derived from a YAP1 lentiviral vector or a YAP1 plasmid vector, and the primary mesenchymal stem cell is derived from any of the following human tissues: placenta, umbilical cord or adipose tissue. The YAP1 gene-modified mesenchymal stem cell obtained by the present invention has no effect on the phenotype and differentiation ability of MSCs themselves; the present invention can significantly promote the proliferation of mesenchymal stem cell and further increase the cell yield by modifying the mesenchymal stem cell with overexpressed YAP1 gene; therefore, a large number of mesenchymal stem cells can be rapidly obtained for clinical stem cell transplantation therapy.

Abstract: The present invention provides a method for establishing a characteristic atlas of whole immune cells in lungs of mice with acute lung injury, including: extraction of the whole immune cells in lung; labeling of antibody with specific metal isotope for mass cytometry; staining the immune cells with the detection antibody; and mass cytometer analysis. The present invention is capable of isolating whole immune cells with high yield and viability on the basis of ensuring cell purity, greater than that of the conventional grinding method. The present invention binds stable metal isotopes to antibodies, while mass spectrometry flow channels are designed based on the principle of minimal channel interference to achieve a comprehensive description on the classification and function of whole immune cells in lung of the mouse with up to 43 markers simultaneously; dynamic alterations in the whole immune cells in lung of the mouse can also be observed.

Abstract: The present invention provides a hepatic lobule-like bioreactor. The bioreactor includes a nanofiber scaffold enclosed within a housing. An intrahepatic fibrous vascular network, a bile capillary network, upper hepatic bile ducts, lower hepatic bile ducts, a common bile duct connecting the upper and the lower hepatic bile ducts, and collagen fibrous microchannels for hepatocytes surrounded by the bile capillary network are distributed throughout the nanofiber scaffold. Bile capillaries in the bile capillary network are provided with two or more inlet ports for biliary epithelial cells. The collagen fibrous microchannels for hepatocytes are provided with two or more inlet ports for hepatocytes. The intrahepatic vascular network is provided with a liquid inlet port and a liquid outlet port. These ports extend through the housing.

Abstract: The present invention provides a hepatic lobule-like bioreactor. The bioreactor includes a nanofiber scaffold enclosed within a housing. An intrahepatic fibrous vascular network, a bile capillary network, upper hepatic bile ducts, lower hepatic bile ducts, a common bile duct connecting the upper and the lower hepatic bile ducts, and collagen fibrous microchannels for hepatocytes surrounded by the bile capillary network are distributed throughout the nanofiber scaffold. Bile capillaries in the bile capillary network are provided with two or more inlet ports for biliary epithelial cells. The collagen fibrous microchannels for hepatocytes are provided with two or more inlet ports for hepatocytes. The intrahepatic vascular network is provided with a liquid inlet port and a liquid outlet port.