Objective To characterize the properties of Hepa1-6-derived microparticles (Hepa1-6-MPs), investigate their stimulatory effects on dendritic cells (DCs) and their cellular uptake pathways, and explore the specific cytotoxic effects of CD8⁺ T cells induced by Hepa1-6-MP-loaded DCs on hepatoma cell lines, with the aim of developing a novel immunotherapeutic model for hepatocellular carcinoma (HCC). Methods The isolated Hepa1-6-MPs were identified using Western blotting, transmission electron microscopy (TEM) and dynamic light scattering (DLS). Flow cytometry was used to assess the uptake pathways of Hepa1-6-MPs by DCs. Subsequently, enzyme-linked immunosorbent assay (ELISA) was used to measure the effects of Hepa1-6-MP-loaded DCs on the release levels of tumor necrosis factor α(TNF-α) and interferon γ(IFN-γ) into the supernatant of CD8⁺ T cells. Lactate dehydrogenase (LDH) tests were conducted to evaluate the cytotoxic effects of CD8⁺ T cells stimulated by Hepa1-6-MP-loaded DCs on hepatoma cells. Results The morphology, size and protein markers of Hepa1-6-MPs met the established criteria. Hepa1-6-MPs enhanced the expression of DC maturation markers CD80 and CD86, and were internalized by DCs via clathrin-mediated endocytosis and phagocytosis pathways. Subsequently, Hepa1-6-MP-loaded DCs stimulated CD8⁺ T cells to release high levels of TNF-α and IFN-γ, which induced their specific cytotoxicity against HCC cells. Conclusion These findings suggest that Hepa1-6-MP-loaded DCs may be a promising HCC immunotherapeutic tool.
Carcinoma, Hepatocellular/therapy* ; Liver Neoplasms/therapy* ; Dendritic Cells/immunology* ; Humans ; Cancer Vaccines/immunology* ; CD8-Positive T-Lymphocytes/immunology* ; Cell Line, Tumor ; Tumor Necrosis Factor-alpha/immunology* ; Interferon-gamma/immunology* ; Cell-Derived Microparticles/immunology* ; Animals

Objective:To evaluate the prognostic accuracy of the sequential organ failure assessment (SOFA), quick sequential organ failure assessment (qSOFA) and systemic inflammatory response syndrome (SIRS) criteria in predicting the mortality in patients with infection or suspected infection by using network Meta-analysis.Methods:Five databases including Wanfang Data, China National Knowledge Infrastructure (CNKI), China Science and Technology Journal Database (VIP), PubMed, Web of Science were searched from February 23, 2016 to September 5, 2020 to identify the relevant literatures comparing the prognostic accuracy of two or more scores for mortality in patients with infection or suspected infection. The literatures screening, data extraction and the quality assessment of the included studies were all conducted independently by two reviewers. Stata 14.0 software was used to test the heterogeneity between the original studies of pairwise comparison of each of the three scoring systems. Ring inconsistency test was used to judge the consistency between direct comparison and indirect comparison. Then network Meta-analysis was performed and the results were ranked. The predictive ability of the three scoring systems was evaluated by surface under cumulative ranking curve (SUCRA). A "comparison-correction" funnel plot was drawn to assess whether there was publication bias in the included studies.Results:A total of 38 studies were enrolled, the overall quality was high. Network meta-analysis showed that SOFA had a great prognostic performance in predicting mortality for patients with infection or suspected infection, which was followed by qSOFA [mean difference ( MD) = 0.07, 95% confidence interval (95% CI) was 0.05-0.09] and SIRS scores ( MD = 0.16, 95% CI was 0.14-0.18), and the qSOFA score was better than SIRS score ( MD = 0.09, 95% CI was 0.07-0.11). In the order of predicting the death risk of patients with infection or suspected infection, SOFA score had higher predictive value, followed by qSOFA score, and SIRS score was the lowest, with SUCRA values of 1.0, 0.5 and 0, respectively. Funnel plot showed that all the studies were distributed on both sides of the midline, but the distribution was not symmetrical, suggesting that there was a high possibility of publication bias and small sample effect. Conclusions:SOFA score had the best prognostic performance in predicting mortality of patients with infection or suspected infection as compared with qSOFA score and SIRS score. However, the funnel plot showed that included literatures may exist small sample effects or publication bias. So the final results should be validated by more prospective studies with multicenters and large samples.

Objective To compare the diagnostic value of endoscopic ultrasonography (EUS) versus intraoperative cholangiography (IOC) for suspected common bile duct stones (CBDS).Methods 324 patients with suspected CBDS who were admitted to the Hepatobiliary Pancreatic Surgery Department of Shaoxing People's Hospital between June 2010 and June 2014 were retrospectively studied.Either EUS or IOC was used and the diagnostic value of these two imaging modalities was compared.Results The sensitivity, specificity, positive predictive value and negative predictive value of IOC in diagnosing suspected CBDS were 90.6％, 98.4％, 9.5％ and 97.7％ respectively.Its consistency rate was 96.9％.The sensitivity, specificity, positive predictive value and negative predictive value of EUS in diagnosing suspected CBDS were 97.1％, 100％, 100％ and 99.1％ respectively.Its consistency rate was 99.3％.Conclusions In diagnosing suspected CBDS, the sensitivity, specificity, positive predictive value and negative predictive value of EUS were significantly higher than IOC.When compared with IOC, EUS was more sensitive to detect occult CBDS and avoided unnecessary ERCP or bile duct exploration.Patients with negative EUS were less likely to have retained CBDS.

Objective To discuss the value of intraoperative transnasal cholangiography in endoscopic sphincterotomy(EST) combined with laparoscopic cholecystectomy(LC) for treating cholelithiasis complicated with choledocholithiasis.Methods The EST was carried out to treat common bile duct stones and to conduct the endoscopic nasobiliary drainage(ENBD).During the LC the cholangiography was performed by way of ENBD.Results Intraoperative cholangiography was successfully completed in all 46 cases,with a cholangiography time of 5~15 min(mean,8.2 min).Secondary common duct stones migrated from the gallbladder were found by cholangiography in 4 cases,in 2 of which the stones were removed under endoscope during the procedure,and in 2 of which the stones were