ABSTRACT
Objective:To explore the effect of peripheral blood T lymphocyte subsets on locally advanced rectal cancer after neoadjuvant chemoradiotherapy.Methods:108 patients were included at the Department of General Surgery of Beijing Chaoyang Hospital from Jun 2016 to Jun 2017. Peripheral blood was collected within one week before neoadjuvant therapy and one week before rectal surgery. Flow cytometry was applied to detect the CD3 + 、CD4 + 、CD8 + 、CD45RA + 、CD45RO + expression. Receiver operating characteristic (ROC) curve analysis was performed to determine the best cut-off value of the ratio of lymphocytes. A logistic regression model was obtained in multivariate analysis. Results:The values of CD3 + , CD4 + and CD8 + T lymphocytes in peripheral blood of the patients decreased compared with that before neoadjuvant treatment (all P<0.05). There was no significant decrease in the proportion of CD4 + , CD8 + , CD45RA + T and CD45RO + lymphocytes in patients′ peripheral blood (all P>0.05). The CD45RO in peripheral blood decreases during neoadjuvant therapy for locally advanced rectal cancer, and it is associated with better tumor regression( P<0.05). The best cut-off value for the ratio changes of CD45RO was 1.07. The ratio changes of CD45RO were the only significant factor for tumor regression in multivariate analysis ( P=0.005, OR=26.867, 95% CI: 1.530-471.635). Conclusion:The percentage of peripheral blood CD45RO may predict the sensitivity of neoadjuvant therapy in rectal cancer patients.
ABSTRACT
B lymphocytes are not the only source of Igs,instead,various non-B cell types,including the normal epithelial cells and cancer cells,also own the ability to produce different types of Igs.The non-B cell derived Igs possess their own characteristics.For instance,they are highly conserved in V (D)J rearrangement patterns;each Ig has its own rearrangement pattern of the variable region of IgH.The non-B Igs are closely related with tumors.They are highly expressed in different tumors,including clear cell renal cell carcinoma,lung cancer,breast cancer,and they act as a tumor promoter through different mechanisms.As to the digestive system tumors,several digestive organs or their corresponding tumors could produce Igs,such as stomach,liver,pancreas,small intestine and colon.The Igs derived from these organs may participate in the innate immune responses,as well as the tumorigenesis processes.A more detailed study on the non-B cell derived Igs may provide new therapeutic targets for malignant tumors,including tumors from digestive system.
ABSTRACT
Children without company of parents in pediatric intensive care unit,often irritable crying,injured,or scratching themselves,pulling in all kinds of wire and/or catheter on the body,and even adverse events,such as dropping of bed.To ensure the safety of the children,we invent a multifunctional strait-jacket,and it is applied in clinic in order to solve the above problems.The structure of this strait-jacket is open,easy to install wire and all kinds of operation;shoulder,cuff with button loops fix bed guardrail by a rope,to prevent the roll shift;cuff with double fold gloves can avoid scratch the skin,remove the line,having the effect of palm warm;waist adding two constraints,not improving constraints on the waist but abdomen to keep warm.By clinical application,this strait-jacket improves the comfort of the constraint,can prevent the occurrence of complications due to improper constraints,such as skin abrasions,physical damage,blood circulation obstacle,alleviate the pain for the children.