1.Effects of chronic compound stress on serum adiponectin level and adipoR2 expression in rats
Jing SUN ; Wei LI ; Junquan ZHANG ; Xiuping LI ; Sheng WANG
Clinical Medicine of China 2010;26(5):470-473
Objective To explore the effect of chronic compound stress on serum adiponectin level and AdipoR2 expression in rats.Methods Forty male Sprague-Dawley rats were randomly divided into two groups:the stress group underwent chronic compound stress and the control group was fed normally.After 8 weeks of stress or feeding,the serum adiponectin,blood glucose ,insulin resistance and HbA1 C,HDL-C,LDL-C,triglyceride and total cholesterol were measured.Results ①After 8 weeks of stress,the score of open-field behaviors and 24-h urocortisol were significantly different between the stress and control groups (32.0 ± 8.6 vs.52.0 ± 12.7,5.8 ± 0.4 vs.(5.3 ±0.1 ) ng/L,repectively; P <0.05 or 0.01 ) ;②After 8 weeks of stress,the adiponectin,total cholesterol ,triglyceride,HDL-C,InIR and HbA1 C were significantly different between the two groups (P < 0.05 or 0.01 ) ;③After 8 weeks of stress,there were significant difference on the expression of AdipoR2mRNA and protein between the two groups (P <0.01 ) ,with the expression of AdipoR2mRNA of 0.67 ±0.04 and 1.00 ±0.11 and the expression of protein of 0.73±0.02 and 1.00 ± 0.04 in the stress and control group,respectively.Adiponectin was negatively related with HbA1 C,LDL-C and IR ( r = - 0.26,- 0.88 and - 0.37,P < 0.05 or 0.01 ),and positively related with HDL-C ( r =0.78 ,P <0.01 ).Conclusions In rats,chronic compound stress decreases the level of serum adiponectin and the expression of AdipoR2 in liver.
2.Efficacy and survival analysis of triple-negative breast cancer treated with neoadjuvant chemotherapy
Yihui LI ; Xiaohong WANG ; Yufeng LI ; Junquan YANG ; Wanning HU
Cancer Research and Clinic 2014;26(4):223-225,234
Objective To evaluate the efficacy and survival rate of neoadjuvant chemotherapy with docetaxe and pirarubicin in triple negative breast cancer (TNBC).Methods Total 51 breast cancer patients were divided into TNBC group (n =26,including 16 of stage Ⅱ and 10 of stage Ⅲ patients) and non-TNBC group (n =25,including 14 of stage Ⅱ and 11 of stage Ⅲ patients).All patients received a median of 4 treatment cycles with TAC regimen [docetaxe 75 mg/m2 on day 1,pirarubicin 40 mg/m2 on day 1 and cyclophosphamide (CTX) 500 mg/m2 on day 1 of each 21 day cycle].The efficacy of treatment and survival rate of two groups were evaluated.Results In TNBC group,9 out of 26 (34.62 %) patients achieved clinical complete response (cCR),and 14 (53.85 %) had partial response (cPR).Overall,88.46 % of TNBC patients had clinical response and 26.92 % (7/26) showed pathology complete response (pCR).In non-TNBC group,6 (24.00 %) patients reached cCR and 8 (32.00 %) showed cPR.The overall response rate was of 56.00 %,and 4 (16.00 %) patients achieved pCR.The overall 3-year survival rates in TNBC and non-TNBC groups were 73.08 % and 88.00 %,respectively,indicating a poorer prognosis of TNBC.The 5-year survival rates of TNBC patients with and without pCR were 88.89 % and 47.06 %,respectively.Conclusion TAC regimen improves the prognosis for locally advanced TNBC,indicating that the neoadjuvant chemotherapy is effective and safe for TNBC patients.
3.STUDY ON DIETARY LIPID INTAKES IN CHINESE RESIDENTS
Jian ZHANG ; Chunrong WANG ; Junquan GAO ; Xiaowei LI ; Junshi CHEN
Acta Nutrimenta Sinica 1956;0(03):-
Objective: To study the amount of fat, cholesterol and fatty acid intake in China and provide the basic material for dietary guidance. Methods: Two areas were selected both in North and South China and each area included 3 provinces, or municipality or autonomous region. Three representative survey sites were selected in each province, or municipality or autonomous region. Dietary survey was conducted by the method of weighing and recording and cooking method was also recorded. The amount of food consumption was calculated as standard person (adult male, light physical activity). All foods were gathered as 12 kinds of foods, and each kind of food was cooked and then mixed. The content of fat and fatty acid was analyzed for 8 kinds of foods and the content of cholesterol was analyzed for 4 kinds of foods. The intake of fat, fatty acid and cholesterol per capita was calculated. Results: The amount of fat intake among North I, North II, South I, South II was 70.5 g, 46.5 g, 58.7 g, 71.0 g respectively and the amount of cholesterol intake was 329.6 mg, 128.5 mg, 400.9 mg, 306.0 mg respectively. The main source of dietary fat was from meat and vegetables. Egg was the main source of dietary cholesterol and meat and egg were both the main source of dietary cholesterol in south II area. About 90% of saturated fatty acid was palmitic acid and stearic acid and 90% of monounsaturated fatty acid was oleic acid. Linoleic acid was the principal n-6 polyunsaturated fatty acid and linolenic acid was the principal n-3 polyunsaturated fatty acid. The ratio of S∶M∶P in North I was 1∶1.1∶1, in North II was 1∶1.6∶1.3, in South I was 1∶1.6∶1.3 and in South II was 1∶1.5∶1. Conclusion: The amount of fat intake and fatty acid profile was quite different among different areas and the dietary guidance should be more pertinent The current cholesterol intake was more than dietary guidance in most areas. In addition to egg, meat was also an important source of cholesterol.
4.Long-term effect of intraventricular injection of low-dose lipopolysaccharide on behavior, microglias and dopaminergic neurons in the substantia nigra of rats
Yongmei ZHAO ; Junquan LI ; Fengyue LV ; Ying YAN ; Qunyuan XU
Chinese Journal of Behavioral Medicine and Brain Science 2011;20(12):1084-1087
Objective To investigate the long-term effect of inflammation on behavior,microglias and dopaminergic (DA) neurons in the substantia nigra of intracephalic inflammation rat models induced by intracerebroventricular injection of low-dose(10μg) lipopolysaccharide (LPS).To analyze the relationship between activation of microglias and DA neurons degeneration in order to explore the mechanism of inflammation in the progressive process of Parkinson' s disease (PD).Methods 50 healthy male SD rats were randomly assigned into saline-injected control group and 10μg LPS-injected group.All injections were made intracerebroventricularly on right side of rats with saline or LPS.Moving speed was measured at different time points.At 24 weeks and 40 weeks after saline or LPS injection,specific antibodies of OX-42 and OX-6 were used separately to detect the changes of microglia in the substantia nigra of rat.The changes in morphology and numbers of substantia nigra DA neurons were observed by tyrosine hydroxylase(TH) immunohistochemical staining.The expression and distribution of the degenerated neurons in substantia nigra were detected by using Fluoro-Jade B(FJB).Results ①Analysis of moving speed sho wed that the moving speed of 10μg LPS-injected group rats and saline-injected group rats was similar from 4 weeks to 36 weeks after injection.At 40 weeks post injection,moving speed of 10μg LPS-injected group rats decreased by 24.6% compared with that of saline-injected group rats (P> 0.05 ).②At 24 weeks and 40 weeks after injection,there were many activated OX-42 positive microglias in the substantia nigra of 10μg LPS-injected group rats,but there was almost no significant activated OX-42 positive microglia in saline-injected group.OX-6 positive microglias were not found in the substantia nigra of both of two groups.③At 24 weeks and 40 weeks post injection,the number of TH-positive neurons in the substantia nigra of 10μg LPS-injected group rats decreasedby 24.2% ( t=4.803,P<0.01) and 27.6% ( t=3.212,P<0.01) respectively compared with those of salineinjected group.④ There was no FJB positive neurons in the substantia nigra of the two group rats.Conclusion Intraventricular injection of low-dose LPS ( l0μg) in rats may induce long-term activation of microglias and chronic degeneration of DA neurons in the subs tantia nigra of rats although the necrosis are not occurs to DA neurons till 40 weeks post LPS injection.Intraventricular injection of low-dose LPS in rats could be ideal model to study the mechanism of chronic degeneration of DA neurons in PD.
5.Main Technical Parameters and Clinical Application of Biograph 64 TruePoint PET/CT
Peixiu LI ; Guojun WANG ; Junquan ZHANG ; Shan JIANG
Chinese Medical Equipment Journal 2003;0(10):-
The basic structure, primary parameters of PET/CT and the clinical application value on tumor system, cardio-vascular system and nerval system are simply introduced. The 64 slices PET/CT is significant in directing coronary heart disease diagnosis and treatment. The PET of the 18F-FDG cardiac muscle metabolism and coronary artery imaging can be operated by this equipment at the same time, which can confirm the activeness of the cardiac muscle and the blood-supply for the coronary arterial distributing. This has a determinative meaning for the choosing of Rx.
6.Enhancement of γδT cells proliferation and cytotoxicity by Hyperoside
Ying LI ; Yu ZHOU ; Leiqing SUN ; Zhonghai ZHOU ; Xiaoting Lü ; Ming XU ; Yi LI ; Junquan LIU
Chinese Journal of Immunology 2016;32(4):524-527
Objective:To investigate the anti-tumor effect of Hyperoside.Methods: Human γδT cells were amplified by isopentenyl pyrophosphate from peripheral blood cells.The proliferation capacity of γδT cells was measured with CCK-8 assay after treated with different concentrations of Hyperoside.Cytotoxicity of γδT cells was detected with LDH assay , and the expression of granzyme,perforin CD107a and IFN-γonγδT cells were measured by flow cytometry before and after treatment.Results: Hyperoside could significantly stimulate the proliferation of γδT cells at the concentration of 3.13-12.5 μg/ml.Cytotoxicity and expression of granzyme,perforin and IFN-γofγδT cells were increased after treatment.Conclusion:Hyperoside could enhance cytotoxicity of humanγδT cells through up-regulation of granzyme ,perforin CD107 a and IFN-γexpression.
7.Research of mechanism about enhancing the activity of γδδT cells treated by resveratrol on colonic cancer cell lines SW-1116
Yuting JIANG ; Sujuan FEI ; Fuxing CHEN ; Junquan LIU ; Ling CHEN ; Yi LI ; Zhengzhong TAO
Chinese Journal of Microbiology and Immunology 2011;31(8):697-701
Objective To explore the effect of γδT cells on colonic cancer cell lines SW-1116 treated by resveratrol. MethodsAmplification γδT cells of human peripheral blood in vitro by using isopentenylpyrophosphate. Different density resveratrol induced γδT cells and colonic cancer cell SW-1 116, methyl thiazolyl tetrazolium(MTT) detectde the effect of growth and proliferation when expression veratrol action to γδT cells and colonic cancer cell lines SW-1116. Flow cytometer( FCM )detectde the expression of porforin, granzymeB and CD107a on γδT cells before it treated by resveratrol and after that. γδT cells against colonic cancer cell lines SW-1116 were detectde by lactate dehydrogenase(LDH) releasing assay before and after treated by resveratrol.Western blot analyzed the liveness of extracellular signal-regulated kinase1/2 of γδT cells before it treated by resveratrol and after that. ResultsγδTcells would be proliferation when the density of resveratrol in 0.39-3.125 μmol/L, while the effect on colonic cancer cell lines SW-1116 was not significance. There was significant difference of the expression of porforin, ranzymeB and CD107a on γδT cells before it treated by resveratrol and after that ( P<0.05 ). γδT cells against colonic cancer cell lines SW-1116 treated by resveratrol was enhanced compared with control group( P<0.05 ) . The p-ERK 1/2expression of γδT cells enhanced when the density of resveratrol treated to γδT cells in 0.1-10 μmol/L( P<0.05 ). Conclusion Resveratrol could promote γδT cells, proliferation and strengthen the cytotoxicity of γδT cells against colonic cancer cell SW-1116, the mechanism might concerned with activating p-ERK1/2 and enhancing the expression of porforin, granzymeB and CD107a on γδT cells.
8.Mechanism research of proliferation and killing hepatoma cell of CD3AK cell by Wogonin
Xiaonan LI ; Huichun JI ; Yu ZHOU ; Lu ZHENG ; Junquan LIU ; Yuehua ZHU
Chinese Journal of Immunology 2015;(3):347-353
Objective:To investigate the effect and mechanism of Wogonin on CD3AK cell proliferation and cytotoxicity to SMMC-7721.Methods:CD3AK cells were cultured from peripheral blood mononuclear cells ( PBMC) in vitro by a variety of cytokines for 7 d,and treated with different concentrations of Wogonin for 48 h.CD3AK cells proliferation was measured by CCK-8 assay.SMMC-7721 cell growth was detected by MTT.The expression of perforin (PFP),granzyme B (GrB) and CD107a on CD3AK cells were measured by flow cytometry ( FCM).The cytotoxicity to SMMC-7721 cells was detected by LDH release assay.The expression of ERK1/2 on CD3AK cells was detected by Western blot.The mobility of SMMC-7721 cells was detected with transwell chambers.The merge of SMMC-7721 cells were measured with Wound healing assay.Results:Wogonin could significantly promote CD3AK cells proliferation, especially at 3.2 mg/L (23%higher than that of control group,P<0.05).The highest cytotoxicity to SMMC-7721 was also at the con-centration 3.2 mg/L (60.4%).The expression of PFP,GrB,CD107a were significantly higher than that of control group( P<0.05).The expression of ERK1/2 was obviously improved,especially at 12.5-0.8mg/L.After treated with Wogonin 50,12.5,3.2,0.8,0.2 mg/L for 48 h,the lowest transwell cell was at 12.5 mg/L and lowest merge rate was at 3.2 mg/L.Conclusion:Wogonin could promote CD3AK cell proliferation and enhance the cytotoxicity to SMMC-7721.Wogonin could also inhibit SMMC-7721 cell growth,migration and cell merge.The mechanism may be related to activated ERK1/2 and increase the expression of PFP,GrB,CD107a.
9.Effect and mechanism of atorvastatin on cytotoxicity of human NK cells to colon cancer cells
Huichun JI ; Junquan LIU ; Yu ZHOU ; Yi LI ; Fuxing CHEN ; Sujuan FEI
Chinese Journal of Immunology 2017;33(2):178-185
Objective:To explore the mechanism of the cytotoxicity of human NK cells induced by atorvastatin to colon cancer cell lines. Methods:After colon cancer cells (HCT-116,SW-480,Caco-2) were cultured with different concentrations of atorvastatin, CCK-8 assay was used to assess the effect of atorvastatin on growth of colon cancer cells. The amplification of human NK cells was induced by SCGM medium in vitro. Automatic biochemical analyzer was applied to test the cytotoxicity of NK cells to colon cancer cells which cultured with different concentration of atorvastatin. FCM was used to detect the expression rate of MICA/B on the cells. Results:(1) The cultivation of NK cells:The proportion of NK cells attained to 93. 1% from 4. 5% after cultured for 10 days. (2) The effects of atorvastatin on the growth of the colon cancer cells:After cultured with atorvastatin,the inhibition rate of HCT-116 cells was higher than that in control when the density of atorvastatin increased from 5 μmol/L to 40 μmol/L after 48 h and from 1. 25 μmol/L to 40 μmol/L after 96 h ( P<0. 05 ) . Correlation analysis showed that the concentration of atorvastatin and the growth inhibition rate of HCT-116 cells were positively correlated(r[48 h]=0. 13,r[96 h]=0. 22,P<0. 05). (3) The cytotoxicity of NK cells to colon cancer cells effected after atorvastatin: In different atorvastatin concentrations groups,the cytotoxicity of NK cells to three colon cancer cell lines was all higher than that in control ( P<0. 05 ) . The atorvastatin concentration was from 2. 5 μmol/L to 10 μmol/L for HCT-116 cells,from 5 μmol/L to 20μmol/L for SW-480 cells,and from 2. 5μmol/L to 20μmol/L for Caco-2 cells. Among the three cell lines, the cytotoxicity of NK cells to HCT116 was the highest in the same concentration. (4)NK cells by atorvastatin cutting statins 96 h,the concentration of 20 mmol/L and 40 mmol/L inhibition rate was higher than that of control group,more than other groups on NK cell growth without significant effect. ( 5 ) The impact of atorvastatin on MICA/B expression of colon cancer cells: After cultured with different concentrations of atorvastatin,the expression of MICA/B on colon cancer cells was higher than that in control(P<0. 05). The concentration was 2. 5μmol/L and 5μmol/L for HCT-116 cells,10μmol/L and 20μmol/L for SW-480 cells,and from 2. 5μmol/L to 40 μmol/L for Caco-2 cells. Conclusion:Atorvastatin could inhibit the growth of colon cancer cells (HCT-116,SW-480 and Caco-2) in a dose-dependent manner;and it could enhance the cytotoxicity of NK cells to colon cancer cells;it also could promote the expression of MICA/B of colon cancer cells,and improve the immunogenicity of colon cancer cells.
10.Long-term outcomes of intracavitary hyperthermia in combination with radiotherapy for locally advanced uterine cervical cancer
Qingsong PANG ; Ruiying LI ; Qiuling GAO ; Junquan YANG ; Fengtong LI ; Li ZHU ; Xue MEI ; Haipan WANG ; Ping WANG
Chinese Journal of Radiation Oncology 2008;17(6):454-457
Objective To evaluate the long-term clinical efficacy and toxicities of combined intracavitary hyperthermia and radiotherapy fur locally advanced uterine cervical cancer. Methods 310 patients with locally advanced uterine cervical cancer were assigned into intracavitary hyperthermia + radiotherapy group(TRT, 181 patients) and external-beam radiotherapy + traditional intracavitary radiation group (RT,129 patients). The external-beam radiotherapy were given with 60Co γ-my or 6-8 MV X-ray in traditional fractionation. In TRT group,radiotherapy was 40 Gy using the anterior-posterior pelvic fields and additional 20-25 Gy using the lateral fields. Hyperthermia was delivered by the 915 MHz microwave hyperthermia device within 15-60 min after external radiotherapy for 10-12 times(40 min each time,1-2 times per week). The temperature of tumor surface was 46-47℃. In the RT group, the external-beam radiotherapy of 40 Gy was delivered using the anterior-posterior pelvic fields. The intracavity radiotherapy of radium was delivered before 1989 ,with 50 mg radium in the vagina and 30 mg in uterine cavity for 24 hours ,weekly for 3 times to a total dose of 7200 mg·h. After 1989,intraeavity radiotherapy of 192Ir was delivered to a total dose of 30-36 Gy to point A in 5-6 Gy fractions,2 fractions per week. Results The 5-year survival of patients in TRT group and RT group was 67.4% versus 52.1% for stage Ⅱ disease (χ2=7.55,P=0.006), and 60.0% vemus32.3% forstage Ⅲ (χ2=7.06,P=0.007) . The 10-year survival was46.5% versus42.6% for stage Ⅱ (χ2=3.90,P=0.058), and 43.7% versus 20.6% for stage Ⅲ(χ2=17.28,P=0.000). Cox regression analysis showed that the tumor stage(P=0.023) and intracavitary hyperthermia( P=0.019) were prognostic factors. According to the RTOG criteria, the rate of mild to moderate late side effects of rectum and bladder in TRT and RT group was 17.7% and 33.1%, respectively (χ2=9.18, P=0.002). Rectovaginal fistula was developed in5 patients(3.9% ) in RT group and I patient (0.6%) in TRT group(χ2= 4.38,P=0.036). Conclusions The long-term survival of patients with stage Ⅲ uterine cervical cancer is better of TRT group than RT group. The TRT is well tolerated and the late toxicity rate is obviously low. It is necessary to carry out large randomized clinical trials to confirm these outcomes.