1.Progress of research in the regulatory mechanism of enterovirus 71 in host immune response
International Journal of Pediatrics 2013;40(6):613-616
Virus infection can cause a variety of host immune response to prevent the spreading of virus.Innate immunity is the first line of defense to resist to virus infection in host.After the virus enters,the macrophage phagocytoses and process of virus antigen.On the other hand,it activates the innate antiviral immune response.The expression of interferon after EV71 infection may be associated with cell specific response.Most studies have shown that EV71 can inhibit the expression of interferon to achieve immune escape.Then antigen presenting cells present antigens to T/B lymphocytes,once specific T/B lymphocytes are activated by antigen,they will be activated,proliferated,diferentiated to immunologic effector cells,which secrete antibodies,cytokines,cell toxicity of medium,ultimately,develop immunological effect.Both humoral immunity and cellular immunity are activated in EV71 infection,and play an important role in mediating protection effect.Cellular immunity may be associated with the clinical outcome of EV71 infection.The EV71-specific neutralizing antibody generated by the humoral immunity plays a key role in protective immunity,but the antibody response level is not correlated with disease severity.In addition,virus infection can induce cell apoptosis to prevent the virus proliferation and the spreading of progeny virus.
2.Clinical efficacy of laparoscopic liver resection versus open liver resection for hepato-cellular carcinoma
Qiyu CHI ; Zheng SHI ; Shangeng WENG ; Yansong ZHENG ; Zhibo ZHANG ; Mingzhi YANG ; Youting CHEN
Chinese Journal of Clinical Oncology 2017;44(14):706-711
Objective:To compare the short-and long-term outcomes of laparoscopic liver resection (LLR) with those of open liver re-section (OLR) for hepatocellular carcinoma (HCC). Methods:Clinical data from patients who suffered from HCC and received LLR or OLR from January 2013 to May 2016 in The First Affiliated Hospital of Fujian Medical University were analyzed restrospectively. To over-come selection bias, a 1:1 match was performed via a case-control study. After case-control matching was completed, 105 patients were included in each group. Short-term outcomes of operation and postoperation as well as long-term outcomes, including disease-free survival and overall survival rates, were evaluated. Relevant statistical methods were used for statistical analysis. Results: The postoperative hospital stay of the laparoscopic group was shorter (8.68 ± 2.82 vs. 10.61 ± 2.95 days, P<0.01) and its use of portal triad clamping was less (20.0%vs. 41.0%, P<0.01) than those of the open group. The abdominal drainage tube of the laparoscopic group was also removed at an earlier time than that of the open group (4.45±2.53 vs. 5.40±2.43 days, P<0.01). The 1-, 2-, and 3-year overall survival rates of the laparoscopic group were 96.88%, 87.54%, and 79.50%, respectively. By comparison, the 1-, 2-, and 3-year overall survival rates of the open group were 94.91%, 86.29%, and 76.37%, respectively (P=0.670). The 1-, 2-, and 3-year disease-free survival rates of the laparoscopic group were 72.09%, 60.16%, and 52.08%, respectively, while the 1-, 2-, and 3-year disease-free survival rates of the open group were 69.48%, 56.50%, 48.13%, respectively (P=0.388). Conclusion:LLR is a safe and feasible procedure. LLR in the selected patients with HCC showed similar long-term outcomes to those of OLR. The postoperative hospital stay of these patients who underwent LLR was shorter and their use of portal triad clamping was less than those of the patients who received OLR. The abdomi-nal drainage tube of the former was also removed at an earlier time than that of the latter. Therefore, the short-term outcomes of LLR were better than those of OLR.
3.Cucurmosin combined with common chemotherapeutic drugs inhibited human pancreatic cancer cell line BxPC-3 in vitro
Qiyu CHI ; Heguang HUANG ; Congfei WANG ; Jieming XIE ; Weize HU ; Mingjuan FU ; Minchao CHEN
Chinese Journal of Hepatobiliary Surgery 2015;21(9):629-632
Objective To investigate the inhibitory effect of cucurmosin (CUS) combined with the commonly used chemotherapeutic drugs for pancreatic cancer in clinical practice including Gemcitabine (GEM),Fluorouracil (5-FU),Paclitaxel (PTX) and Cisplatin (DDP) on cell proliferation of human pancreatic cancer cell line BxPC-3.Mehtods Sulforhodamine B (SRB) assay was used to detect the inhibition on the cell proliferation of BxPC-3 cells in vitro after the treatment of CUS combined with GEM,5-FU,PTX and DDP,respectively.Colony formation assay was also conducted and Jin' s formula was used to assess the synergistic effect of these combinations.Results The inhibition rate of CUS combined with GEM,5-FU,PTX and DDP were all higher than those of each drug alone (q > 0.85),which became obvious in low concentrations.The colony formation inhibition rate of CUS combined with GEM,5-FU,PTX or DDP were all higher than each single drug treatment (q > 1.15).Conclusion CUS could enhance the cell growth inhibition of GEM,5-FU,PTX and DDP in BxPC-3 cells in vitro with a good synergistic effect.
4.Comparative clinical study of laparoscopic versus open liver resection in elderly patients with hepatocellular carcinoma
Qiyu CHI ; Zheng SHI ; Shangeng WENG ; Yansong ZHENG ; Minhui CHI ; Mingzhi YANG ; Zhibo ZHANG
Chinese Journal of Geriatrics 2018;37(9):999-1003
Objective To evaluate the feasibility and efficacy of laparoscopic liver resection (LLR) in elderly patients with hepatocellular carcinoma (HCC). Methods Twenty-nine elderly patients undergoing laparoscopic liver resection (LLR) and 58 elderly patients receiving open liver resection (OLR) for HCC were included from January 2013 to December 2015 in our department of Fujian Medical University. Two groups were 1:2 matched for gender ,tumor numbers ,and operative procedure.Besides ,general clinical data ,intraoperative data ,postoperative recovery ,and postoperative survival were compared. Results The postoperative hospital stay was shorter in the LLR group [(9.1±3.8)days]thanintheOLRgroup[(11.8±5.1)days](t= -2.66,P<0.05).Theincidence of portal triad clamping was lower in the LLR group than in the OLR group (34.5% vs.60.3% ,χ2 =5.18 ,P<0.05). The removal time of abdominal drainage tube was earlier in the LLR group (4.18 ± 1.94)days than in the OLR group (5.4 ± 2.1)days (t= -2.48 ,P<0.05). The overall survival (OS) showed no difference (37.08 months vs.38.72 months ,t=0.72 ,P=0.789). The disease-free survival (DFS) showed no difference (29.00 months vs.27.49 months ,t=0.53 ,P=0.467). Conclusions LLR in elderly patients with HCC can achieve the same long-term outcome as the conventional open hepatectomy ,and LLR has better short-term outcomes with obvious advantages of minimal invasion.