Murine interleukin-4 gene(mIL-4) was transfected into mice glioblastoma cell line G422 by recombinant adenovirus vector. We detected mRNA transcription of target gene in gene modified tumor cells(G422-mIL4). High level of mouse IL-4 could be detected in the culture supernatant of G422-mIL4. When inoculated subcuatneously, the tumor growth of G422-mIL4 was significantly inhibited as compared to wild type G422 and LacZ gene modified G422( G422-LacZ) . The period of survival of mice inoculated with G422-mlL4 was significantly prolongated(p

Objective:To evaluate the safety of dental treatment in pediatric patients with leukemia. Methods:Eighty-nine patients were included and dental treatment was conducted under the condition of neutrophil counts ranging from 3.0?109/L to 10?109/L and platelet counts of more than 50?109/L. Supportive medical care was continued, the patients were monitored for at least one month after dental treatment for bleeding,pain,local and/or systemic infection,fever and other complications. Results:Dental treatments were performed successfully.All patients, except one with delayed wound healing after tooth extraction, recovered uneventfully. Conclusions:As long as the hematological values are within the suggested range, preoperative preparation and supportive medical care are well conducted,dental treatment can be safely performed in pediatric patients with leukemia.

Objective To investigate the effects of hypoxia-inducible factor (HIF)-1α on glycolysis of human esophageal squamous carcinoma cells and the possible mechanism.Methods TE13 and Eca109 cells were cultured under normal oxygen (20％O2) and hypoxia (1％O2) conditions.The hypoxia was duration 6 hours,12 hours,24 hours and 48 hours.HIF-1α gene was stable silented by RNA interference method and TE13/small interfering HIF cells and Eca109/siHIF cells were obtained.The cell culture condition and time was same as TE13 and Eca109 cells.The changes of HIF-1α expression were detected by Western-blot.The changes of lactic acid concentration in cell culture supernatant were determined by Spectrophotometry.The changes of glucose transporter-1 (GLUT-1) and lactic dehydrogenase A (LDHA) expression at mRNA level were examined by realtime polymerase chain reaction.The changes of GLUT-1 and LDHA expression at protein level were tested by Western blot.Using t or t' test to analyze the effects of hypoxia duration on HIF-1αexpression at protein level.One-way ANOVA was applied for the difference analysis between the groups.Results In TE13 and Eca109 cells,the HIF-1α expression significantly increased under hypoxia condition and reached the peak at 12 hour (t=6.11,8.31; both P＜0.05).The lactic acid secretion of TE13/siHIF cells and Eca109/siHIF cells was (1.24±0.33) and (1.28±0.37) mmol/L,which significantly decreased when compared with TE13 and Eca109 cells [(3.25±1.34) and (4.91±1.69) mmol/L,t=2.53,3.59,both P＜0.05].The lactic acid secretion of TE13 and Eca109 cells significantly increased after hypoxia [(6.48±1.73) and (8.02± 1.95) mmol/L,t=2.715,2.050,both P＜0.05].There was no significant lactic acid secretion in TE13/siHIF cells and Eca109/siHIF cells after hypoxia (P ＞ 0.05).The expressions of GLUT-1 and LDHA at mRNA level were significantly suppressed in TE13/siHIF cells and Eca109/siHIF cells (normal oxygen:t=6.98,3.92,7.25,3.67,all P＜0.05).The expression of GLUT-1 at protein level remarkably weaked (normal oxygen:t=4.57、16.56,hypoxia:t=6.19、6.09,all P＜0.05),while the expression of LDHA at protein level slightly decreased (P＞0.05).Conclusions The level of glycolysis can be lowered by suppression HIF-1α expression in human esophageal squamous carcinoma cells.The pathway may be involved in the suppression of GLUT-1 and LDHA expression.Except for HIF-1α,there may be other regulating factors in LDHA protein expression at same time.

Objective To evaluate the effect of wild feces detection in Oncomelania hupensis environments on the surveil?lance of infection source of schistosomiasis,and find the weakness in schistosomiasis control in Hubei Province,so as to put for?ward the targeted strategies and measures. Methods Four environments with O. hupensis snails in endemic areas of Hubei Provinces,where human and livestock often haunted,were selected according to the river systems,namely the Juzhanghe River beach in Jingzhou City,Changjiang River beach in Jiayu County,Hanbei River beach in Tianmen City,and Changshou River beach in Zhongxiang City,then the snail survey and wild feces detection were implemented in the selected environments. Re?sults There were O. hupensis snails,livestock,wild feces of cattle or sheep as well as positive cattle feces found in all the 4 environments,and the positive rate of schistosome miracidium incubation was 47.62%. Conclusion The schistosome miracidi?um positive rate of wild feces of cattle is high in the environments with snails in endemic areas of Hubei Province ,which has high risk for schistosomiasis transmission.

Objective To analyze the differentially expressed genes in esophageal squamons cell carcinoma (ESCC), para-cancerous tissue (PCT) and normal esophagus tissue (NET) using oligomicroarray and to identify the target genes related to the development and progression of esophageal carcinoma. Methods The total RNAs isolated from ESCC, PCT or NET using one step Trizol method were purified and reversely transcribed into cRNAs. The cRNAs were then fluorescence labeled and hybridized with Agilent oligomicroarray (21 074 probes). The fluorescence intensity features were detected by Agilent scanner and quantified by feature extraction software. The selected candidate genes were confirmed by real time real time fluorescent quantitative RT-PCR immunohistochemistry andWestern blotting.Results ① The oligomicroarray demonstrated that there were 38 up-regulated genes and 61 down-regulated genes. ② The real time fluorescent quantitative RT-PCR revealed that five genes (CTHRC1, INHBA, SPP1 ,LUM, HRK)were more differentially expressed in up-regulated genes. Of which, CTHRC1 displayed more disparity.③ Immunohistochemistry examination showed that the higher expression of CTHRC1 (56.5 %, 26/46) was observed in ESCC. There was significantly difference in expression of CTHRC1 between patients with or without lymph node metastasis (P<0.05). ④ CTHRC1 protein was expressed in both TE-13 and Eca-109 cell lines. Conclusion CTHRC1 is probably one of the most significant biomolecules in ESCC.

Background and purpose: With the increase of aging population, elderly patients (age ≥70 years) with esophageal squamous cell carcinoma occurred more and more. However, few studies have focused on elderly esophageal squamous cell carcinoma patients. This study aimed to assess the outcomes and prognostic factors for elderly patients with esophageal squamous cell carcinoma treated after deifnitive chemoradiotherapy. Methods:We retrospectively analyzed 53 patients (age≥70 years) with esophageal squamous cell carcinoma and treated with deifnitive radiotherapy with or without chemotherapy from Fudan University Shanghai Cancer Center from Mar. 2009 to Dec. 2011. Results:Median age was 74 years. Twenty-nine patients underwent radiotherapy, 24 patients underwent radiochemotherapy. 1-, 2-, 3-, and 5- year survival was 62%, 44%, 33% and 19% respectively. Grade 2 and above acute radiation-induced esophageal toxicity and radiation pneumonitis occur rate was 6% and 9% respectively. No treatment-related deaths occurred and no patients experienced any grade 4 and above toxicities. Multivariate analysis identiifed treatment modality, tumor site and smoking history as independent prognostic factors for overall survival. Conclusion:Radiotherapy may be an acceptable treatment option for elderly patients with esophageal squamous cell carcinoma. In appropriately selected patients, concurrent chemotherapy could bring a better overall survival.

Background and purpose: Radiation therapy is still the most primary treatment of brain metastases, and prognosis is affected by many factors. The aim of this study was to identify the prognostic factors and to establish a prognostic index model in patients with brain metastases after whole-brain radiotherapy (WBRT). Methods: We reviewed the clinical date of 140 patients with brain metastases radiotherapy in our hospital from Jan. 2008 to Jul. 2011. The signiifcance of prognostic variables in the survival was resulted from both univariate analysis and multivariate analysis. The prognostic index (PI) was established based on Cox regression analysis and subgrouping values. It was assessed whether recursive partitioning analysis classes (RPA), basic score for brain metastases (BS-BM) and the graded prognostic assessment index (GPA) were related to prognosis. Results:The median survival time was 222 days. The univariate analysis showed that the independent prognostic factors were KPS performance status, number of brain metastases, presence of extracranial metastases, primary tumor status, radiation dose, hemoglobin. The multivariate analysis showed that KPS performance status (P=0.002, Wald=9.700), presence of extracranial metastases (P=0.018, Wald=5.604) and primary tumor status (P=0.001, Wald=10.212) were signiifcantly correlated with overall survival. RPA, BS-BM and GPA were closely related to their prognosis by Log-rank test. In predicting 3 months and 6 months of survival for patients, PI was better than other modes. Conclusion:Our data suggest that the 3 indexes RPA,BS-BM and GPA are valid prognostic index models, but PI model is better.

Aberrant activation of the phosphatidylinositol 3-kinase(PI3K)-protein kinase B(PKB,Akt)-mammalian target of rapamycin(mTOR) pathway is commonly observed in human cancer and is critical for cell survival, proliferation and differentiation.A variety of small molecule inhibitors targeting PI3K-Akt-mTOR pathway are under clinical studies.This review will summarize the recent studies in terms of the PI3K-Akt-mTOR signaling pathway and cancer,research progress of the antitumor activity possessed by PI3K-Akt-mTOR inhibitors,as well as the recent research in the related field conducted by our group.

Objective To study the expression of E-cadherin( E-cad), p-catenin(β-cat) in labial salivary glands of patients with primary Sj(o)gren's syndrome (pSS) in order to explore their role in pathogenesis. Methods Biopsies of labial salivary glands were obtained from 52 patients with pSS and 30 healthy controls. The immunohistochemical staining was used to detect the expression of E-cad and β-cat. Anti-SSA and anti-SSB antibodies were measured. Semi-quantitative analysis was performed by image analysis software. Ultra-structural changes was used by electron-microscopic techniques. Results ① The area of expression, optical intensity and the accumulated optical intensity of the E-cad group [(2513±1086) μm2, 0.212±0.041, 566 ±297 ] were lower than normal controls. The expression level was reduced as the increase of lymphocyte infiltration focus. ② The area of expression, the optical density and the accumulated optical density of the β- cat group [(12 324±7883) μm2, 0.113±0.031, 566±297] was lower than those of the control group. The expression level was reduced as the increase of the lymphocyte infiltration focus. ③ The E-cad expression and the p-cat expression was positively correlated in the labial gland of patients with pSS. ④ Howev-er, there was difference in the expression of E -cad and β -cat between patients with positive SSA and negative SSA antibodies. Conclusion In salivary samples, the expression of both E-cad and p-cat in patients with pSS is lower than those of the controls. Anti-SSA/SSB antibodies are important parameters of pSS and they may be involved in the pathogenesis of pSS.

Humans ; Lipoma ; diagnostic imaging ; pathology ; surgery ; Male ; Mediastinal Neoplasms ; diagnostic imaging ; pathology ; surgery ; Middle Aged ; Thymus Neoplasms ; diagnostic imaging ; pathology ; surgery ; Tomography, X-Ray Computed