Objective To observe the clinical efficacy and prognosis of nimotuzumab combined with intensity modulated radiotherapy(IMRT) in the treatment of advanced local nasopharyngeal carcinoma.Methods 82 patients with advanced nasopharyngeal carcinoma were selected, and they were randomly divided into observation group(40 cases) and control group(42 cases) according to the digital table.The observation group was treated with nimotuzumab plus IMRT plus cisplatin, and the control group was treated with IMRT plus cisplatin.After 7 weeks of treatment, the clinical efficacy, adverse reactions and T cell subsets were observed.And the patients were followed up for 1 year, 2 years and 3 years to evaluate the survival rate.Results In the observation group, the total remission rate was 75.00%,which was higher than that in the control group(59.09%),the difference was statistically significant(x2=35.81,P<0.05).The CD+4,CD+8 and CD+4/CD+8 levels in the observation group were similar to those in the control group(tCD+4=0.59,P=0.56;tCD+8=1.70,P=0.01;tCD+4/CD+8=0.13,P=0.89).The incidence rates of Ⅰ degree and Ⅱ degree mucosal reaction and dermatitis in the observation group were 35.00%,40.00%,40.00%,35.00%,respectively,which were higher than 9.09%,9.09%,9.09%,9.09% of the control group,the differences were statistically significant(x2Ⅰmucous membrane=4.18,P=0.04;x2Ⅱmucous membrane=5.52,P=0.02;x2Ⅰdermatitis=5.52,P=0.02;x2Ⅱdermatitis=4.18,P=0.04).The 2-year and 3-year survival rates in the observation group were 65.50%,60.00%,respectively,which were significantly higher than 31.82%,27.27% in the control group, the differences were statistically significant(x2=4.11,P=0.04;x2=4.58,P=0.03).Conclusion Nimotuzumab combined with IMRT in the treatment of advanced nasopharyngeal carcinoma has good short-term clinical efficacy, good long-term efficacy and controllable adverse reactions.It is worthy of clinical application.

Objective To explore whether gastrointestinal carcinoma could influence differentiation and maturation of dentritic cell (DC) in cultured peripheral blood mononuclear cells (PBMC). Methods PBMC of peripheral blood obtained either from healthy individuals or gastrointestinal carcinoma patients were incubated to induce into DC with the aid of addition of GM-CSF, IL-4 and TNF-?. The percentage of DC and expression rate of markers CD83, CD1a were determined by flow cytometric analysis. Results The quantity of PBMC isolated from gastrointestinal carcinoma patients was less than that from healthy individuals with same volume of blood. DC could be induced from PBMC of gastrointestinal carcinoma patients, and they could express B7 costimulatory molecules as those of healthy individuals. But the expression rates of CD83, CD1a were significantly different in two groups. Conclusion The quantity of PBMC and their ability to differentiate into DC seemed to be decreased in gastrointestinal carcinoma patients.

Objective:This work aims to use the characteristics of dendritic cells (DCs) pulsed with recombinant human HSP70, which can present and process tumor antigens, to enhance the killing activity of cytotoxic t lymphocytes (CTLs) against breast neoplasms. Methods:Autologous DCs were isolated from peripheral blood mononuclear cells and then stimulated in vitro with granulocyte macrophage-colony stimulating factor and interleukin-4. The DCs were loaded with A549 tumor cell freeze-thaw lysate, and rhHSP70 was added as an immune adjuvant. The specific groups were subjected to tumor-specific cytotoxic assay, enzyme-linked immunosorbent assay, and fluores-cence-activated cell sorting. Results:DCs pulsed with A549 tumor cell lysate enhanced the growth expansion of CTLs, upregulated CD40 and CD80 populations in CTLs, and augmented Th1 cytokines. In addition, the cytotoxicity of specific CTLs against A549 was highly enhanced. The above indications became more obvious after the addition of rhHSP70. Conclusion:DCs pulsed with freeze-thaw cell lysates derived from breast cancer can enhance growth expansion of lymphocytes. They may serve as an effective tumor antigen to stimulate the proliferation of specific CTLs, which are very effective in activating specific T-cell responses against breast cancer cells in vitro. The improved anti-tumor immunity response by DC-based vaccines may be related to the maturation of the DCs promoted by rhHSP70.

Objective To make use of the characteristics of presenting and processing tumor antigen of Dendritic cells pulsed with recombinant human Hsp70 and Mage-3 peptide to enhance killing capability of breast neoplasms. Methods Autologous dendritic cells were isolated from PBMC and then stimuiated in vitro with GM-CSF and IL-4.Dendritic cells were loaded with Mage-3 peptide;at the same time Hsp70L1 was added. The specific groupings each induce generation of tumor specific cytotoxic assay with ELISA. Results DCs pulsed with Mage-3 peptide enhanced the growth expansion of CTL, and promoted the secretion of cytokines such as TNF-αand IL-6. DCs pulsed with recombinant human Hsp70 and Mage-3 peptide had cytotoxicity against human breast cancer cells MCF-7.Conclusions DCs pulsed with recombinant human Hsp70 and Mage -3 peptide have higher biological activities. Modified DCs can stimulate the proliferation of lymphoeytes,present effectively tumor antigen to stimulate generation of speeific CTLs. Dendritic cells pulsed with recombinant human Hsp70 and Mage-3 peptide have high ability to kill breast cancer cells.

To investigate the seropharmacological action of Buyang Huanwu Decoction (BHD) on hypoxia induced apoptosis of cultured cortical neurons. Models of hypoxia induced neuron apoptosis were established by Daniel method. Neuron apoptotic rate was examined by propidium iodide staining method and flow cytometry, nitric oxide (NO) and malonyl dialdehyde (MDA) contents by spectrophotometer and bcl 2 gene expression by immunohistochemical method. Effects of BHD on neuron apoptotic rate, NO and MDA contents and bcl 2 gene expression were observed in normal group (Group A), model group (Group B), normal saline group (Group C) and high dosage, moderate dosage and low dosage BHD groups (Group D, Group E and Group F). BHD could inhibit the apoptosis of cultured cortical neurons, reduce the production of NO and MDA and promote the expression of bcl 2 gene.[Conclusion]BHD has an inhibitory effect on hypoxia induced apoptosis of cultured cortical neurons and its mechanism may be concerned with the reduction of NO and MDA production and the increase of bcl 2 gene expression.

Objective To discuss the value of combination of various clinical laboratory methods in the diagnosis of Mycobacteri-um tuberculosis(MTB) .Methods T-SPOT .TB ,sputum smear ,sputum culture ,and MTB-DNA detection were used to detect MTB .The sensitivity ,specificity ,rate of missed diagnosis ,coincidence rate and correct diagnosis index for tuberculosis diagnosis of the four methods and their pairwise combinations were analyzed and compared .Results Comparing with other methods ,T-SPOT . TB combined with MTB-DNA detection had the highest sensitivity ,coincidence rate and correct diagnosis index ,and the lowest rate of missed diagnosis ,with significant difference(P<0 .05) .Conclusion T-SPOT .TB combined with MTB-DNA detection could be used as an adjuvant method for the early diagnosis of tuberculosis .

AIM:To determine whether the vitreous cavity (VC) is capable of supporting the induction of deviant immune response to retinal soluble (S) antigen and to observe the influence of interleukin-1 (IL-1) on the immunologic properties of the VC. METHODS: Retinal S antigen was inoculated into the anterior chamber (AC) and VC in Wistar rats. Seven days after antigen inoculation, the recipient animals were immunized with S antigen and complete Freund's adjuvant. Delayed-type hypersensitivity (DTH) was then assessed by footpad challenge. To alter systemic immune conditions, IL-1 was administrated by intraperitoneal injection. RESULTS: Antigen-specific DTH did not develop in rats in which S antigen was injected into the AC and the VC. In contrast, strong DTH was elicited by S antigen injected into the AC and VC if IL-1 was administrated systemically for 7 consecutive days after the antigen challenge. CONCLUSION: The VC is capable of supporting immune deviation to soluble antigen by actively suppressing antigen-specific DTH. Systemic administration of exogenous IL-1 eliminates the capacity of the VC to support immune deviation inducing by soluble antigen injected locally.

Objective Experimental autoimmune anterior uveitis (EAAU) is a useful model for human anterior uveitis. The purpose of this study was to observe whether EAAU development could be prevented by anterior chamber-associated immune deviation (ACAID). Methods Bovine melanin protein (BMP) in phosphate-buffered saline (PBS) was injected into the anterior chamber of the right eye of rats; control animals were injected with PBS alone. Seven days later, all animals were immunized with BMP in complete Freund's adjuvant (CFA) and pertussis toxin. The severity and incidence of uveitis was monitored by clinical examination and histopathology. The delayed-type hypersensitivity (DTH) responses were evaluated by footpad swelling elicited by injection of BMP.Results Rats intraocularly injected with BMP showed a reduced severity and incidence of EAAU, and significantly suppressed DTH response compared to control rats.Conclusion These data suggest that the ACAID procedure can be utilized to prevent the development of EAAU.

Associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) is a breakthrough in the field of hepatobiliary surgery.The remnant liver regeneration was stimulated during the first stage of the operation,and the radical resection of the tumor could be successfully carried out during the second stage of the operation.ALPPS is a new approach for patients with tumor which is previously considered unresectable during one hospital stay.In April 2014,a patient with hepatocellular carcinoma (HCC) in the right liver and liver cirrhosis was admitted to the Southwest Hospital.Preoperative examination confirmed that the ratio of the remnant liver volume to the standard liver volume was 26.9％,which indicated that the patient was inappropriate to receive radical resection of HCC.Therefore,totally laparoscopic ALPPS was applied.In the first stage of the operation,the portal vein ligation associated with liver hanging tape placement and in situ splitting of liver were carried out after hanging the Glisson's pedicle under the laparoscope.Thirteen days after the first stage of the operation,the ratio of the remnant liver volume to the standard liver volume was 40.6％.The second stage of the operation was carried out 14 days after the first stage of the operation.The right hepatic pedicle and right hepatic vein were transected with a stapler.The tumor was removed after full mobilization of the right liver.The distance between the resection margin to the tumor was 1.5 cm.No complications were detected after the first stage of the operation,while the patient was complicated with pleural effusion after the second stage of the operation and was cured by pleural puncture and drainage.The patient was discharged at postoperative day 9 and followed up at postoperative month 1.The results of follow-up confirmed that the hepatic function was normal,and no mass occupying lesions and pleural effusion were detected.Totally laparoscopic ALPPS is safe and feasible with satisfactory short-term efficacy.