3.Expression of recombined human endothelial monocyte-activating polypeptideⅡand determination of its activity
Yun GAO ; Liang-Hua WANG ; Na REN ; Ming-Juan SUN ; Ai-Yun GUO ; Bing-Hua JIAO ;
Chinese Journal of Cancer Biotherapy 1995;0(03):-
Objective: To chine and express the recombinant human endothelial monocyte-activating polypeptide-Ⅱ(EMAP-Ⅱ)and identify its anti-tumor biological activities.Methods: EMAP-Ⅱ_(147-312)was expressed by the expression vector pMAL-p2x and E.coli BL-21 and the product was purified.The production of tissue factor(TF)in human umbili- cal vein endothelial cell ECV-304 mediated by the recombinant EMAP-Ⅱwas determined by chemiluminescence sub- strate.The promoting effect of recombinant EMAP-Ⅱon TNF?-induced ECV-304 cell.Apoptosis was determined by flow cytometry.Its inhibitory effect on human pancreaic cancer cell SW1990 proliferation was determined by MTT method. Results:DNA sequencing verified that EMAP-Ⅱwas correctly cloned.The molecular mass of the protein identified by SDS-PAGE was consistent with the theoretic value.The productivity of recombinant EMAP-Ⅱwas 500?g per 1 g bacteria (wet mass).The purified product induced expression of tissue factor(TF)in ECV-304 cells;it also enhanced the sensi- tivity of ECV-304 cells to the apoptotic effect of TNF?([16.6?2.5]% vs[25.6?2.3]%,P
4.Roles of Th_1/Th_2 type cytokines in experimental autoimmune neuritis
Yun WU ; Hua-Bing WANG ; Wei-Zhi WANG ;
Chinese Journal of Neurology 2005;0(09):-
Objective To establish the model of P2 peptide-induced experimental autoimmune neuritis(EAN)in rats and explore the roles of Th_1/Th_2 type eytokines in EAN.Methods Lewis rats were grouped into EAN rats and control rats.The EAN rats were immunized by injection into both hind footpads of inoculums containing 100 ?g or 200 ?g of P2_(57-81)peptide and FCA while the control rats were immunized with FCA only.Clinical scores were compared at the maximum of disease.Supernatant productions of IFN- ?, IL-4 and IL-10 secreted by lymphocytes and obtained on day 14 after the immunization were examined. Histopathological assessment of sciatic nerves was made.Results Peak clinical scores of P2_(57-81)200 ?g (3.6?0.3)group were significantly higher than P2_(57-81)100 ?g group(2.2?0.6,P
5.Effect of Multiple Interventions on Therapy Efficacy to the Patients with Epilepsy
Jian HAN ; Ling WANG ; Hui WANG ; Yun JIANG ; Hua JIANG
Chinese Journal of Rehabilitation Theory and Practice 2008;14(4):385-386
Objective To observe the effect of multiple interventions on secondary epilepsy patients.Methods 114 secondary epilepsy patients were randomly divided into the intervention group and control group with 57 cases in each group.The cases in the intervention group received multiple interventions including heath education,psychological treatment,safety nursing,overdose administration,early rehabilitation,discharge guide and so on besides usual nursing.While,the cases in the control group received usual nursing.The follow-up was performed for 6 months and the therapeutic efficacy of two groups was compared.Results After multiple interventions,the seizure frequency and trauma incidence rate decreased,compliance and quality of life increased in patients of the intervention group,and there was a significant difference compared with the control group(P<0.05).Conclusion Multiple interventions can decrease seizure frequency and increase compliance of treatment and quality of life of secondary epilepsy patients.
7.Triptolide inhibites Th17 cell differentiation via regulating cyclooxygenase-2/ prostaglandin E2 axis in synovial fibroblasts from rheumatoid arthritis.
An-Ping PENG ; Xiao-Yun WANG ; Jun-Hua ZHUANG
China Journal of Chinese Materia Medica 2014;39(3):536-539
Triptolide (TPT), an active compound extracted from Chinese herb Tripterygium wilfordii , has been used in therapy of rheumatoid arthritis (RA). In this study, after synovial fibroblasts from rheumatoid arthritis (RASFs) were treated with TPT, we investigated its effect on the differentiation of Th17 cells. Firstly, the mRNA level of cyclooxygenase (COX) wad detected by qRT-PCR and the protein level of prostaglandin E2 (PGE2) was tested by ELISA in RASFs treated with different concentrations (0, 10, 50, 100 nmol L-1 ) of TPT. Then after TPT pre-treated RASFs and RA CD4 + T cells wer e co-cultured for 3 days in the presence or absence of PGE2, IL-17 and IFN-gamma production in CD4 T cell subsets were detected by flow cytometry. The results showed TPT decreased the mRNA experssion of COX2 and the secretion of PGE2 in RASFs in a dose-dependent manner(P <0. 05). We further found that differentiation of Thl7 cells was downregulated in a dose-dependent manner, and exogenous PGE2 could reverse the inhibition of Th17 cell differentiation(P <0. 05). Taken together, our results demonstrated that TPT inhibited the mRNA level of COX2 and the secretion of PGE2 in RASFs, which partly led to impaired Th17 cell differentiation in vitro.
Arthritis, Rheumatoid
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drug therapy
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enzymology
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immunology
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Cell Differentiation
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drug effects
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Cell Line
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Cyclooxygenase 2
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genetics
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metabolism
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Dinoprostone
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metabolism
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Diterpenes
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pharmacology
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Epoxy Compounds
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pharmacology
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Fibroblasts
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drug effects
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immunology
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Gene Expression Regulation, Enzymologic
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drug effects
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Humans
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Middle Aged
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Phenanthrenes
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pharmacology
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Synovial Fluid
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drug effects
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Th17 Cells
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drug effects
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pathology
8.Effects of Rhizoma smilacis glabrae,on cellular and humoral immune responses
Qiang XU ; Rong WANG ; Li—Hua XU ; Jie—Yun JIANG
Chinese Journal of Immunology 1985;0(01):-
A remarkabale inhibitory activity was exhibited by the aqueous extract from Rhizoma smilacisglabrae(RSG) against both picryl chloride(PC)- induced contact dermatitis and sheep red bloodcells (SRBC)- induced footpad reaction.The effect of RSG was displayed more distinctlywheng given after than before the 2nd antigen challenge.RSG also showed a marked anti-in-flammatory activity against xylene- induced ear and egg whiteinduced footpad edema.Addi-tionally,RSG did not show a potable influence on IgM- and IgG-PFC counts against SRBC inmice.An increase but not decrease in serum hemolysin level,however,was observed in both groupsof RSG,peralleled with the finding that hemolytic plaques in PFC test were obviously biggerthan those in control.These results suggest that RSG has a selective activity to suppress the cellularimmune response without inhibiting the humoral immune response.The suppression to cellular im-munity by RSG may be presented mainly through affecting the inflammatory process after lym-phokine release.
9.Predictive value of soluble vascular endothelial growth factor receptor 1 for preeclampsia in second-trimester
Qian CHEN ; Yun ZHAO ; Li ZOU ; Ze-Hua WANG ;
Chinese Journal of Obstetrics and Gynecology 2001;0(03):-
Objective To evaluate the predictive value of plasma levels of soluble vascular endothelial growth factor receptor 1(VEGFR-1,also known as sFlt-1) in second-trimester for preeclampsia.Methods One hundred and forty-six pregnant women with normal blood pressure previously were prospectively included in the study.Peripheral venous blood samples were obtained between 20 and 26 gestational weeks.Plasma levels of sFh-1 were measured by an enzyme-linked immunoassay.Results (1) Among 146 previously normotensive women,12 developed preeclampsia (preeclampsia group), 134 remained normal pregnant till the end (normal group).(2) The plasma levels of sFh-1 in preeclampsia group [(4135?699)ng/L] was significantly higher than that in normal group[(1490?1033)ng/L](P
10.Clinical analysis of treatment outcome for 559 patients with endometrial cancer
Zhi SUN ; Hua- WANG ; Yun CHEN ; Yu-Lan REN ;
China Oncology 2000;0(06):-
Background and purpose:With the recognition of prognostic factors and application of surgical- pathological staging,the treatment strategy of endometrial cancer has greatly changed.In this study,we investigated the treatment strategy,survival rate and prognostic factors of endometrial cancer.Methods:Five hundred and fifty-nine patients of endometrial cancer underwent primary surgical treatment from January 1996 to December 2006 in Cancer Hospital,Fudan University.The clinicopathologic parameters and prognosis were analyzed retrospectively.Results: Patients were followed up with the median period 36 months,25 cases experienced local relapse,24 cases were found to have distant metastases.The 3-year overall survival(OS)was 88.7%,3-year and 5-year disease free survival(DFS) was 82.7% and 80.9%.The 3-year overall survival(OS)were 95.5% in stageⅠ,95.3% in stageⅡ,75.9% in stageⅢand 32.4% in stageⅣrespectively(P