Objective To elucidate the roles of TANK-binding kinase-1(TBKl)in hepatitis B virus (HBV)infection induced interferon antiviral immunity.Methods Peripheral blood monocytes were separated by CD14 magnetic microbeads from healthy volunteers(HV)and chronic hepatitis B(CHB)patients.Purified mDCs were induced and proliferated in the culture medium with human granulocyte-macrophage concentration of 25 mg/L were stimulated.The mRNA expressions of TBK1,interferon regulatory factor (IRF)3 and interferon(IFN)-βwere quantified by real time polymerase chain reaction(PCR).The levels of IFN-β in supernatants were determined by enzyme-linked immunosorbent assay(ELISA).Reslllts The mRNA levels of TBK1,IRF3 and IFN-β did not change significantly at 0,12,24 and 48 h after the significantly at 0, 12, 24 and 48 h in CHB group, whereas, it was significantly up-regulated at 12 h in HV group. Conclusions Our results suggest that there may be some disorders in host antiviral signal transduction pathways downstream the binding between ligands and receptors on mDC surface. The insufficient IFN-β expression after HBV infection may result in persistent chronic infection.

Objective To explore the relationship among cytokine levels and Toll-like receptor (TLR) 2,4 in hepatitis B virus (HBV) related cirrhosis. Methods Heparin anticoagulated venous blood of 35 randomly selected HBV related cirrhosis and 35 healthy volunteers were collected aseptically. Plasma tumor necrosis factor (TNF)-α concentration was determined using enzyme-linked immunosorbent assay (ELISA). Peripheral blood mononuclear cells (PBMC) were separated and stained with anti-TLR2,4 monoclonal antibodies, then analysed by flow cytometry. Total RNA was extracted from PBMC and TLR2,4 mRNA expression levels were evaluated by real-time quantitative polymerase chain reaction (PCR) using SYBR Green detection. Means of normal distribution were compared by t test and one factor analysis of variance. The data of abnormal distribution were analyzed using Mann-Whithey U test, Kruskal-Wallis H test and Spearman correlation analysis. Results The plasma concentration of TNF-α in the cirrhotic patients was significantly higher than that in the healthy controls (33.52 ng/L vs 6.07 ng/L, Z=-6.584, P<0. 01), which was parellel with Child-Pugh score. TLR2 positive rate in PBMC from the cirrhotic patients was significantly higher than that from the healthy controls (20.65% vs 12.04%, Z=-4.458, P<0.01), which was positively correlated with plasma TNF-α level (r= 0.448 3, P<0.05), and parellel with Child-Pugh score. Between the cirrhotic and healthy groups, there was no significant difference of TLR4 positive rate in PBMC. The mRNA expression level of TLR2/GAPDH in PBMC from the cirrhotic patients was significantly higher than the controls (0.234 2 vs 0.043 1, Z=-6.83, P<0.01), which was positively correlated with plasma TNF-α level (r=0.411 1, P<0.05), and parellel with Child-Pugh score. Between the two groups, there was no significant difference of TLR4 mRNA expression level in PBMC. Conclusions The expression of TLR2 in PBMC from cirrhotic patients is significantly elevated, which is positively correlated with plasma TNF-α level and the severity of liver disease. The expression of TLR4 in PBMC from cirrhotic patients is unchanged. It suggests that TLR2 but not TLR4, plays an important role in the progression of liver cirrhosis.

Cancer is a severe threat to human life and health.The over-activation of oncogenes is the main reason for poor treatment and prognosis of cancer patients.Most of these over-activated oncogenes are protein tyrosine kinase(PTK).Among many PTKs,non-receptor tyrosine kinase(NRTK)is an important signaling molecule that regulates cell proliferation and migration as the primary driver of intracellular signaling pathway transduction.Targeting NRTK has become the focus and difficulty in developing anti-tumor drugs.Traditional Chinese medicine(TCM),with its characteristics of multi-channel,multi-link,multi-target,and low toxicity,plays a significant advantage in treating adjuvant tumors.So far,it has been found various traditional TCM monomers can inhibit NRTK from playing an anti-tumor role.This review summarized the part of Src,Jak,Abl,Fak families,the prominent members of NRTK in tumor progression,as well as the TCM monomers acting on these members.We aimed to provide a theoretical basis for the anti-tumor therapy targeting NRTK and a reference for the search for TCM monomer inhibitors of NRTK.

Objective:To evaluate and summarize the best evidence for exercise intervention in patients with hypertension, and to provide the basis for clinical medical workers to manage hypertension.Methods:We searched UpToDate, BMJ Best Practice, the Cochrane Library, the International Guideline Collaborative Network to collect guidelines, systematic evaluation, and evidence summary. The retrieval time was from database establishment to June 1st 2022. Two researchers independently conducted literature quality evaluation and extracted evidence from the included literature.Results:A total of 13 articles were included, including 10 guidelines, 1 expert consensus and 2 Meta analysis. A total of 23 pieces of best evidence were collected, mainly involving 8 aspects, including exercise principles, exercise assessment, exercise environment, pre-exercise preparation, exercise program, post-exercise collation, tracking and review, exercise compliance.Conclusions:Exercise has a positive effect on improving blood pressure in patients with hypertension. The suggestions summarized in this study can be tried to guide clinical practice.