Objective To construct and appraise a series of shRNA eukaryotic expression plasmid which contains vary spots of human SKP2 gene.Methods Three pairs of hairpin-like oligonucleotide sequences specific for human SKP2 gene were designed and synthesized. They were cloned into the eukaryotic expression pSIREN-RetroQ plasmid. The recombinated plasmids were confirmed by PCR and sequencing.Results The shRNA sequences were constructed successfully, and could be inserted into the eukaryotic expression vector pSIREN-RetroQ.Conclusions Three shRNA transcripting plasmids pSIREN-RetroQ are successfully constructed, and form a basis for research in cancer gene target therapy against SKP2 gene.

Objective To study the method of obtaining a large number of dendritic cells (DC). To study the specific cytotoxicity T lymphocyte (CTL) effect against tumor cells initiated by DC pulsed with peptide of cancer cell. Methods Development of cells with cytologic features of DC in bone marrow cultures supplemented with granulocyte macrophage-colony stimulus factor (GM-CSF) and IL-4. Determining the DC phenotype and the specific structure by electronic microscopy. The CTL effect against pancreatic carcinoma leading by the DC pulsed with tumor cells lysate in vitro was observed. Results A large number of typical DC was proliferated by supplementing with GM-CSF and IL-4 cytokines. DC had specific cell appearance and structure, and highly expressed various cell surface molecules. TNF-? had the ability of stimulating DC mature, the mature DC had the enhancing abilities of antigen presenting and IL-12 self-secreting, as well as, expressed higher levels of CD54, MHC-Ⅱ and CD86 molecules than control group (P

Objective To analyze the independent factors impacting the in-hospital prognosis of patients with septic shock,and to construct a simplified scoring system and evaluate its predictive value.Methods A retrospective analysis was carried out on 247 patients with septic shock admitted to the People's Hospital of Xinjiang Uygur Autonomous Region from January 2021 to July 2022,among whom 122 patients survived and 125 died.Univariate analysis and multivariate Cox proportional hazard regression model were used to screen the independent factors affecting in-hospital mortality of septic shock patients.The best cut-off value was ob-tained by using the receiver operating characteristics(ROC)curve,and the continuous variables were conver-ted into binary variables and assigned.Finally,a simplified scoring system was established,and its predictive efficacy for hospital death in septic shock patients was verified.Results The results of multivariate Cox pro-portional hazard regression model showed that the Glasgow coma scale(GCS)score(HR=0.929,95%CI:0.875-0.985,P=0.014),quick sequential organ failure assessment(qSOFA)score(HR=1.475,95%CI:1.094-1.989,P=0.011),lactate level(HR=1.096,95%CI:1.049-1.145,P<0.001),procalcitonin level(HR=1.009,95%CI:1.000-1.018,P=0.048),and albumin level(HR=0.958,95%CI:0.922-0.996,P=0.029)were identified as independent influencing factors for in-hospital mortality in patients with septic shock.The ROC curve showed that the simplified scoring system,based on GCS score,qSOFA score,lactate,procalcitonin,and albumin levels,exhibited an area under the curve and 95%CI of 0.866(0.822-0.910),with an optimal cutoff value of 2.5.The sensitivity and specificity were 80.0%and 78.7%,respectively.Con-clusion The simplified scoring system,based on early assessments of GCS score,qSOFA score,lactate,pro-calcitonin,and albumin levels,demonstrates substantial predictive value for in-hospital mortality in patients with septic shock.