Objective To explore the expression of DKK-1 and its clinical value in patients with e-sophageal cancer. Methods The levels of serum DKK-1 were measured by sandwich enzyme linked immu-nosorbent assay(ELISA) in 80 patients with esophageal squamous cell cancer and in 35 healthy subjects. The sensitivities of serum DKK-1, CEA and CYFRA21-1 in the patients with esophageal squamous cell cancer were calculated and analyzed to compare their values in diagnosis of esophageal cancer. Results The serum DKK- 1 levels in patients with esophageal squamous cell cancer were significantly higher than those of healthy subjects(P<0.05). According to the highest value of medicine reference of DKK- 1 (14. 54 ng/ml), its sensitivity and specificity were 66. 25% and 82. 86% respectively; There was a significant difference between the sensitivity of DKK-1 in patients with esophageal squamons cell cancer(66. 25%) and that in healthy subjects(17.14%) (P<0.05). The sensitivitis of serum DKK- 1 in patients with esophageal squamous cell cancer were associated with tumor size, TNM stage and lymph node metastasis(P <0.05),but not associated with gender,age and differentiation grade(P>0.05). And the sensitivity of DKK-1 (66. 25%) was significantly higher than that of CEA, CYFRA21-1 (39. 44% ,25. 35%, P <0. 01). Conclusion DKK-1 played a very important role in the growth and metastasis of esophageal cancer and may be a new tumor marker or an important index in the diagno-sis of esophageal cancer.

Objective To construct the RNA interference(RNAi)recombinant adenovirus vector targeting at human hypoxia-inducible transcription factor 1?(HIF-1?)and to evaluate its effect on human lung adenocarcinoma cell line SPCA-1.Methods The recombinant adenovirus Ad was constructed.HIF-1? inserted with HIF-1? RNAi fragment via AdEasy system.The virus was purifed by CsCl gradient centrifuge.The functional titer of recombinant adenovirus was measured by transfection test in HEK 293 cells.SPCA-1 cells were transducted with 2 multiplicity of infection(MOI)Ad.HIF1? in vitro,the expression rate of green fluorescence protein(GFP)was recorded by flow cytometry,HIF-1? mRNA and protein level was measured by Real-Time RT-PCR and flow cytometry.ResultsThe recombinant shuttle plasmid PAdTrack.HIF-1? and adenovirus plasmid Ad.HIF-1? were all correct shown by enzyme digestion confirmation.The plasmid pAd.HIF-1? was transducted into HEK293 cells,15%GFP expressionwere seen after 3 days.The final titers of recombinant adenovirus were 5.0?1010 TU/mL.SPCA-1 cells was transducted by Ad.HIF-1? in vitro for 48 h,GFP expression rate was 92%,HIF-1? mRNA and protein level decreased 89% and 87%,respectively.Conclusion RNAi adenovirus vector of human HIF-1? gene has been successfully constructed,which could facilitate the research onHIF-1? gene related gene therapy for lung cancer.

Objective To explore the relationship of chemotherapy sensitivity and expression of multidrug resistance genes and apoptosis regulation genes in human breast cancer cell lines.Methods MTT assay was used to detect the sensitivity to adriamycin(ADM),cisplatinum(DDP),mitomycin C(MMC),fluorouracilum(5-Fu),carmustine(BCNU) in five breast cancer cell lines including Bcap37,MCF-7,T47D,MDA-MB-231and MDA-MB-435.Multidrug resistance genes including P-glycoprotein(P-GP),Glutsthione-s-transferases-?(GST-?),Lung resistance protein(LRP),multidrug resistance related protein(MRP),MGMT and apoptosis regulation genes FAS,BCL-2,P53 and P16 were examined by flow cytometry(FCM).Results The chemotherapy sensitivity was obviously divergent in different breast cancer cell lines.The correlation analysis showed that there were positive correlations between the sensitivity to 5-Fu in breast cancer cell lines and the expression of P16.There was no correlation among the sensitivity to other drugs and expression of other genes.Conclusions The sensitivity to 5-Fu is related to the expression of P16 in breast cancer cell lines.

Objective:To investigate the relationship of osteoporotic vertebral body compression fracture(OVCF)with multifidus muscle and intervertebral disc degeneration in the lower lumbar spine and the lumbar-pelvic parameters in elderly women.Methods:Clinical data of a total of 108 elderly women with osteoporosis were retrospectively analyzed.They were divided into the fracture group(n=56)and the control group(n=52)according to the presence of vertebral body compression fractures.Age, body mass index(BMI)and bone mineral density(BMD)were collected in two groups.The angle of pelvic incidence(PI), angle of pelvic tilt(PT), low lumbar lordosis(LLL)and sacral slope(SS)were measured by the standing lumbar lateral X-ray photography.The degree of degeneration of intervertebral disc L 3-S 1 and multifidus muscle were detected by using the lumbar MRI.These parameters were compared between the two groups. Results:The age, BMI and BMD had no significant difference between the two groups( P>0.05). The degree of intervertebral disc degeneration of L 3-L 4 and L 4-L 5 was statistically significant higher in the fracture group than in the control group( Z=-4.656 and -2.675, P=0.000 and 0.007), while the degree of intervertebral disc degeneration of L 5-S 1 had no statistically significant difference between the two groups( Z=-1.784, P=0.075). There were statistically significant higher multifidus muscle degeneration of L 3-L 4 and L 4-L 5 in the fracture group than in the control group( Z=-3.248 and -4.073, P=0.001 and 0.000), while no significant difference between the two groups in multifidus muscle degeneration of L 5-S 1( Z=-1.096, P=0.282). No statistically significant differences were found in PI, PT, SS and LLL between the two groups( t=1.162, 0.827, -0.082 and -0.677, P=0.248, 0.410, 0.935 and 0.500). Conclusions:The degeneration of intervertebral disc and multifidus muscle of L 3-L 4 and L 4-L 5 is positively correlated with OVCF in elderly women.

Objective To investigate the effect of S-1 on serum thymidine kinase-1 ( TK1 ) , vascular endothelial growth factor ( VEGF ) and insulin-like growth factor-1 (IGF-1) and tumor biomarkers, estrgen levels and quality of life in patients with advanced breast cancer.Methods 69 cases with advanced breast cancer from January 2014 to May 2015 in the hospital were selected and randomly divided into two groups.34 cases in control group were treated by conventional therapy, and 34 cases in experimental group were treated with S-1.Serum TK1, VEGF and IGF-1, tumor biomarkers, estrogen level and quality of life score were compared pre-and post-treatment.ResuIts Compared with control group, the levels of VEGF, IGF-1 and TK1 were lower (P<0.05), serum CA125, CEA and CA15-3 concentrations were lower (P<0.05),the LH, E2 and E1 levels were lower (P<0.05) and the survival quality score was higher in experimental group ( P<0.05 ) .ConcIusion S-1 has better clinical curative effect in treatment of patients with advanced breast cancer, and effectively reduce serum TK1, VEGF, IGF-1, tumor biomarker levels, improve the quality of survival, which has important significance.

Purpose:To study the relation between regional lymph node metastasis and nm23 H 1 protein expression and DNA ploidy of esophageal squamous cell carcinoma patients. Methods:Flow cytometry was used to analyze nm23 H 1 protein and DNA ploidy in surgical specimens from the patients with esophageal carcinoma. The object tissues included: the primary tumor tissue, the pericancerous mucosa, the incisional margin and the regional lymph node. Results:There were obvious differences between nm23 H 1 protein expression in lymph node metastasis positive and negative groups, primary tumor tissue and pericancerous mucosa, cancer tissue and the incisal margin( P 0.05).The differences of DI were distinct between cancer tissue and the pericancerous mucosa, cancer tissue and the incisal margin, cancer tissue and the lymph node( P 0.05).In corresponding tissues of lymph node metastasis positive and negative groups, nm23 H 1 protein expression was different( P 0.05). As to DI, it was different only among pathological grades( P 0.05). Conclusions:nm23 H 1 protein higher expression can produce certain inhibitory effect on metastasis of esophageal carcinoma. Combining DNA ploidy detection can help to understand the biological behavious and deduce the prognosis of esophageal carcinoma.

Purpose:To study COX 2 protein expression and its significance in familial adenomatous polyposis (FAP) and rectal cancer tissues. Methods: Flow cytometry was used to detect COX 2 protein expression in surgical specimens from 12 normal rectal mucosa tissues, 19 FAP tissues, 7 transformed FAP tissues and 36 rectal cancer tissues.Results:The COX 2 protein expression was negative in the 12 normal rectal mucosa tissues ( FI=0.67?0.28). The COX 2 protein expression was positive in 18 (94.74%) of the 19 FAP tissues (FI=1.97?0.36),the 7(100%) transformed FAP tissues(FI=2.02?0.24) and the 36(100%) rectal cancer tissues (FI=2.14?0.31). The COX 2 protein and positive expression rates showed that there were obvious differences between normal rectal mucosa tissues and FAP tissues, transformed FAP tissues, rectal cancer tissues( P 0.05). Conclusions:It is suggested that the detection of COX 2 protein expression can have important significance for predicting adenomatous polyposis carceration and chemo interfering carceration progress. [

Objective To discuss the feasibility and the effects of percutaneous vertebroplasty (PVP) in the treatment of the osteoporotic compression fracture in theupper and middle thoracic vertebrae.Methods The study included 101 patients.55 cases were treated with PVP (observation group) and 46 cases were treated with conservative treatment (control group).The clinical efficacy of those two different treatment methods was evaluated by the changes of VAS score,ODI score,vertebral height and Cobb angle before versus after treatment.Results VAS and ODI scores at 48 hours and 6 weeks after treatment was significantly lower in observation group than in the control group (all P＜0.05).Although there was no significant difference in VAS and ODI scores between the two groups after 6 months of treatment (both P＞0.05),the anterior and middle vertebral height was decreased and Cobb angle of spine was increased in control group as compared with observation group (both P＜ 0.05).Conclusions PVP is an effective and safe method in the treatment of osteoporotic vertebral compression fractures in upper and middle thoracic vertebrae.The short-and long-term evaluation indexes are better in PVP than in conservative treatment.But the surgery should be proceeded under highly clear perspective equipment by the surgeons with highly level professional technology.Because the surgery is highly risky,surgery should be proceeded with cautions.

Objective To observe the fusion rate by using cage filled with osteophyte in anterior cervical disectomy and fusion.Methods From January 2010 to July 2012,81 patients receiving anterior cervical disectomy and spine fusion underwent treatment with cages containing exclusively autologous osteophyte collected from both anterior and posterior vertebral edges adjacent to the intervertebral space.There were 52 males and 29 females,aged from 55 to 78 years,average 64.1 years in this study.46 patients received one-level fusion,and 35 patients received two-level fusion respectively.Patients were followed up at 3 months,6 months and 1 year after operation.The fusion was evaluated by X-ray film and reconstructive CT.Results The total fusion rate after 3 months of operation was 76.5％ (62/81),the one-level and two-level fusion rate were 78.3％ (36/46) and 74.3％ (26/35),respectively.The total fusion rate after 6 months of operation was 93.8％ (76/81),the one-level and two-level fusion rate were 95.7％ (44/46) and 91.4％ (32/35),respectively.The total fusion rate was 100％ (81/81) after 1 year of operation.No statistically significant difference in fusion rate was found between the two groups.Conclusions The method of using cage filled with osteophyte can acquire ideal fusion rate in one-and two-level anterior cervical disectomy,fusion and plate fixation.

AIM:To investigate the regulatory role of hypoxia mimic reagent cobalt chloride ( CoCl2 ) on cave-olin-1 (Cav-1) generation and the influence of Cav-1 on the abilities of migration and invasion of human lung adenocarcino-ma A549 cells.METHODS:The concentrations of Cav-1 and hypoxia-inducible factor ( HIF)-1αin pleural effusion of the patients with lung cancer ( MPE) or tuberculous pleurisy ( TBPE) were detected, and the correlation was also compared. A549 cells were treated with CoCl2 at different concentrations and time in the presence or absence of HIF-1αinhibitor YC-1.The concentrations of Cav-1 and HIF-1αin the cell supernatants were measured by ELISA.The effects of Cav-1 induced by CoCl2 on the migration and invasion of A549 cells were determined by scratch test and Transwell invasion trial, respec-tively.RESULTS:The levels of Cav-1 and HIF-1αin MPE were significantly higher than those in TBPE.There was a highly positive correlation between Cav-1 and HIF-1αlevels in the pleural effusion.CoCl2 induced the generation of Cav-1 and HIF-1αin A549 cells in a concentration-and time-dependent manner, the peak occurred at 200 μmol/L or 24 h, while the concentration over 200 μmol/L or after treated over 24 h, a concentration-or time-dependent inhibition was ob-served.HIF-1αinhibitor YC-1 concentration-dependently inhibited the generation of HIF-1αand Cav-1 induced by CoCl2 in A549 cells.CoCl2 enhanced A549 cells migration and invasion, with 200 μmol/L played the strongest role, which were down-regulated significantly in the presence of YC-1.CONCLUSION:The alteration of hypoxia-induced Cav-1 generation might be involved in the migration and invasion of A549 cells.A possible role for HIF-1αis indicated in Cav-1 generation.