RESUMEN
Single-port and reduced-port laparoscopic radical gastrectomy as the innovative surgery for gastric cancer are gradually accepted nowadays,and more attentions are also paid to single-port and reduced-port laparoscopic radical gastrectomy due to its better cosmetic effect,less pain,lower incidence rate of surgical site infection and more advantages in enhanced recovery after surgery.However,in the early stage,the development of single-port and reduced-port laparoscopic radical gastrectomy were facing challenges and obstacles on account of limited surgical skills,the lack of special laparoscopic instruments,laparoscope and multi-port Trocar.In recent years,the dilemma and difficult situations were gradually resolved following by surgical techniques innovation,laparoscopic instruments and facilities improvement.It is believed that single-port and reduced-port laparoscopic radical gastrectomy will have a good prospect and breakthrough in the field of gastric cancer treatment in the future.
RESUMEN
Tissue cross-reactivity (TCR) studies play an important role in the preclinical safety evaluation of monoclonal antibody (mAb) drugs.The objective of TCR studies is to find out off-target binding sites of mAbs,and provide valuable predictions for the toxicological evaluation and safety medication in vivo.According to the new drug application requirements of FDA,EMA and CFDA,TCR studies need to be carried out before Phase I clinic trails.As the origin of mAb drugs was transferred from murine antibodies to fully humanized antibodies in current years,immunohistochemical methods used in TCR studies were confronted with some new problems and challenges.Taking our own experiences and recent progress on TCR studies at home and abroad together,the authors summarized the recent exploration on technical difficulties of multipath system in TCR studies.This may provide valuable insight for further improving the quality of TCR studies and increase the predictive value of TCR studies for in vivo toxicological evaluation in China.