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Journal of Clinical Hepatology ; (12): 461-465, 2022.
Article in Chinese | WPRIM | ID: wpr-920913


Sphingomyelinases (SMase) are the main enzymes that regulate the signaling pathway of sphingomyelin and the metabolism of related products, and they are involved in the key steps of the complex metabolic process of sphingomyelin. In recent years, many studies have shown that SMase is involved in the biological processes such as cell cycle arrest, cell migration, and inflammation and promotes the development and progression of hepatocellular carcinoma by regulating the apoptosis and proliferation of tumor stem cells. SMase has an important potential biological value in the development, progression, diagnosis, and treatment of hepatocellular carcinoma. This article summarizes the exact role of SMase in the development and progression of hepatocellular carcinoma, in order to provide new ideas and strategies for the clinical treatment of hepatocellular carcinoma and the development of new drugs.

Article in Chinese | WPRIM | ID: wpr-581624


The emergence of repertoire cloning using phage antibody libraries has revolutionized the antibody engineering technology. We prepared phage antibody libraries from both human breast cancer cell immunized murine spleen cells and human peripheral lymphocytes from volunteer received HBsAg vaccination. Mouse anti-human breast cancer cell antibodies and human anti-HBsAg antibodies were successfully cloned by panning of the phage antibody libraries against breast cancer cells and immobilized HBsAg. The resulting Fab fragments were expressed in E.coli cells and the specificity, affinity and DNA sequences were analyzed. The results showed the potential of the phage display system in antibody preparation.