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Yin XR, Chen DF. [Gastrointestinal complications of liver cirrhosis]. Zhonghua Gan Zang Bing Za Zhi 2020; 28:377-380. [PMID: 32536051 DOI: 10.3760/cma.j.cn501113-20200413-00179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Liver cirrhosis is the end-stage of chronic liver disease and can affect the function of multiple organs. Gastrointestinal tract damage resulting from cirrhosis is more common in clinic, which may cause gastroparesis, affect the digestion and absorption of nutrients, and destroy the intestinal mucosal barrier function. In addition, it may be accompanied by a series of gastrointestinal complications that affect the patient's prognosis. Clinically, more attention should be paid to early monitoring, early diagnosis and early treatment of cirrhosis-related gastrointestinal complications so to control the progression of liver cirrhosis condition, reduce advanced stage complications, and improve patient's quality of life.
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Affiliation(s)
- X R Yin
- Department of Gastroenterology, Daping Hospital, Army Military Medical University, Chongqing 400042, China
| | - D F Chen
- Department of Gastroenterology, Daping Hospital, Army Military Medical University, Chongqing 400042, China
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Guo HJ, Gao YF, Liu HY, He HT, Huang MT, Cai DC, Liao DD, Li JN, Yin XR, Liu ZH, Hu J. [Impact of cessation of antiviral therapy at delivery on postpartum liver function in mothers with chronic hepatitis B virus infection]. Zhonghua Gan Zang Bing Za Zhi 2019; 27:112-117. [PMID: 30818915 DOI: 10.3760/cma.j.issn.1007-3418.2019.02.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the impact of immediate cessation of antiviral therapy on postpartum liver function and the factors influencing postpartum abnormality in mothers with chronic hepatitis B virus infection. Methods: A retrospective cohort study was conducted. One hundred eighty-eight pregnant women with HBV DNA level > 2×106 IU/ml were enrolled from June 2014 to June 2018. Demographic information and clinical data of liver function and HBV DNA load during gravidity, intrapartum and postpartum period were collected. According to the antiviral treatment recommendations during pregnancy, the women were divided into three groups, namely, tenofovir (TDF), telbivudine (LdT) and control group. Liver function abnormalities among the three groups were compared within 6 months after delivery, and the factors influencing abnormal liver function were analyzed by unconditional logistic regression. Results: Of the 188 cases, 72 cases were in the TDF group, 80 cases in the LdT group, and 36 cases in the control group. Pregnant women in the TDF and LdT groups received oral TDF (300 mg/d) and LdT (600 mg/d) from 28 ± 4 weeks of gestation till delivery. Among the 188 patients, 30 (16.0%) had abnormal postpartum liver function abnormality. The incidence of postpartum liver function abnormality [alanine aminotransferase (ALT) > 2 × upper limit of normal (ULN)] in the TDF, LdT, and control groups was 19.4%, 12.5%, and 16.7%, respectively. The postpartum peak levels of ALT (median, range) in the three groups were 34.5 (12.0-946.0) U/L, 37.5 (12.0-733.8) U/L, and 39.0 (7.0-513.0) U/L, respectively. There was no significant difference between the two indexes among the three groups (P > 0.05). There was no statistically significant difference in the degree of postpartum liver function abnormalities between the three groups (P = 0.944). Most of the liver function abnormalities were mild to moderate (2 × ULN≤ALT < 10 × ULN), and usually resolved spontaneously or by treatment. Univariate and multivariate analysis showed that baseline ALT level during pregnancy was an independent factor associated with postpartum liver function abnormality (OR = 1.031, CI 95%: 1.005-1.058; χ(2) = 5.340, P = 0.021), whereas age, antiviral therapy, HBeAg-positivity, baseline HBV DNA levels, gravidity, parity, preterm delivery and delivery mode were not significantly associated with postpartum liver function abnormality. Conclusion: Cessation of antiviral therapy after delivery did not significantly increase the risk of postpartum liver function abnormality in pregnant women with chronic HBV infection. The ALT level during pregnancy is a factor influencing postpartum liver function abnormality.
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Affiliation(s)
- H J Guo
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Y F Gao
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - H Y Liu
- Department of Severe Liver Disease, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - H T He
- Institute of Hepatology and Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - M T Huang
- Institute of Hepatology and Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - D C Cai
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - D D Liao
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - J N Li
- Institute of Hepatology and Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - X R Yin
- Institute of Hepatology and Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Z H Liu
- Institute of Hepatology and Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - J Hu
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China; Department of Hospital Infection Management, Zhujiang Hospital, Southern Medical University, Guangzhou 510220, China
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Yin XR, Liu ZH, Hou JL. [Action for shield project promoting zero mother-to-child transmission of hepatitis B virus]. Zhonghua Gan Zang Bing Za Zhi 2019; 27:81-84. [PMID: 30818908 DOI: 10.3760/cma.j.issn.1007-3418.2019.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The World Health Organization(WHO)has set the goal to eliminate viral hepatitis as a public health threat by 2030, and the key to achieve this ambitious goal lies on the standardized and precise management of pregnant women and their infants by effectively blocking mother-to-child transmission (MTCT) of hepatitis B virus (HBV). Standardized management includes screening and antiviral intervention during pregnancy, infant immunization, and evaluation of immune effect, breastfeeding and mode of delivery. The results of randomized controlled clinical trials and real-world data have confirmed that the comprehensive prevention strategy based on combined immune prophylaxis of neonates can effectively block MTCT of HBV. It is one of the key links to eliminate viral hepatitis in our country, and to formulate a new strategy in line with the public health needs at home and abroad and thereby promote the implementation and application of standardized management process to improve the public's awareness of the disease.
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Affiliation(s)
- X R Yin
- Institute of Hepatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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Han LL, Yin XR, Zhang SQ. miR-103 promotes the metastasis and EMT of hepatocellular carcinoma by directly inhibiting LATS2. Int J Oncol 2018; 53:2433-2444. [PMID: 30272278 PMCID: PMC6203164 DOI: 10.3892/ijo.2018.4580] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 09/21/2018] [Indexed: 01/17/2023] Open
Abstract
Improving the long-term survival of patients with hepatocellular carcinoma (HCC) remains a challenge due to metastasis and recurrence. In this study, we demonstrate that the overexpression of miR-103 in HCC cells promotes epithelial-mesenchymal transition (EMT), and is associated with an enhanced metastasis and poor outcomes, as shown by western blot analysis and immunohistochemistry. Mechanistically, using reporter luciferase assay we reveal that the serine/threonine-protein kinase, large tumor suppressor kinase 2 (LATS2), a key component of the Hippo signaling pathway, is a direct target of miR-103 in HCC cells. Transwell assay, MTT assay and western blot analysis were performed to reveal that LATS2 can counteract the functional effects of miR-103 on HCC metastasis, growth and EMT. The analyses of clinical data indicated that a high expression of miR-103 correlated with a high expression of vimentin, but with a low expression of LATS2 and E-cadherin in HCC tissues. miR-103 also reduced yes-associated protein (YAP) phosphorylation. On the whole, the findings of this study suggest that miR-103 promotes HCC metastasis and EMT by directly inhibiting LATS2. Thus, targeting miR-103/LATS2 may prove to be a promising therapeutic strategy for HCC.
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Affiliation(s)
- Li-Li Han
- Department of Oncology, The Second Affiliated Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Xiao-Ran Yin
- Department of Oncology, The Second Affiliated Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Shu-Qun Zhang
- Department of Oncology, The Second Affiliated Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
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Jing FC, Zhang J, Feng C, Nian YY, Wang JH, Hu H, Yang BD, Sun XM, Zheng JY, Yin XR. Potential rat model of anxiety-like gastric hypersensitivity induced by sequential stress. World J Gastroenterol 2017; 23:7594-7608. [PMID: 29204059 PMCID: PMC5698252 DOI: 10.3748/wjg.v23.i42.7594] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 10/04/2017] [Accepted: 10/18/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To establish a rat model of anxiety-like gastric hypersensitivity (GHS) of functional dyspepsia (FD) induced by novel sequential stress.
METHODS Animal pups were divided into two groups from postnatal day 2: controls and the sequential-stress-treated. The sequential-stress-treated group received maternal separation and acute gastric irritation early in life and restraint stress in adulthood; controls were reared undisturbed with their mothers. Rats in both groups were followed to adulthood (8 wk) at which point the anxiety-like behaviors and visceromotor responses to gastric distention (20-100 mmHg) and gastric emptying were tested. Meanwhile, alterations in several anxiety-related brain-stomach modulators including 5-hydroxytryptamine (5-HT), γ-aminobutyric acid (GABA), brain-derived neurotrophic factor (BDNF) and nesfatin-1 in the rat hippocampus, plasma and gastric fundus and the 5-HT1A receptor (5-HT1AR) in the hippocampal CA1 subfield and the mucosa of the gastric fundus were examined.
RESULTS Sequential-stress-treated rats simultaneously demonstrated anxiety-like behaviors and GHS in dose-dependent manner compared with the control group. Although rats in both groups consumed similar amount of solid food, the rate of gastric emptying was lower in the sequential-stress-treated rats than in the control group. Sequential stress significantly decreased the levels of 5-HT (51.91 ± 1.88 vs 104.21 ± 2.88, P < 0.01), GABA (2.38 ± 0.16 vs 5.01 ± 0.13, P < 0.01) and BDNF (304.40 ± 10.16 vs 698.17 ± 27.91, P < 0.01) in the hippocampus but increased the content of nesfatin-1 (1961.38 ± 56.89 vs 1007.50 ± 33.05, P < 0.01) in the same site; significantly decreased the levels of 5-HT (47.82 ± 2.29 vs 89.45 ± 2.61, P < 0.01) and BDNF (257.05 ± 12.89 vs 536.71 ± 20.73, P < 0.01) in the plasma but increased the content of nesfatin-1 in it (1391.75 ± 42.77 vs 737.88 ± 33.15, P < 0.01); significantly decreased the levels of 5-HT (41.15 ± 1.81 vs 89.17 ± 2.31, P < 0.01) and BDNF (226.49 ± 12.10 vs 551.36 ± 16.47, P < 0.01) in the gastric fundus but increased the content of nesfatin-1 in the same site (1534.75 ± 38.52 vs 819.63 ± 38.04, P < 0.01). The expressions of 5-HT1AR in the hippocampal CA1 subfield and the mucosa of the gastric fundus were down-regulated measured by IHC (Optical Density value: Hippocampus 15253.50 ± 760.35 vs 21149.75 ± 834.13; gastric fundus 15865.25 ± 521.24 vs 23865.75 ± 1868.60; P < 0.05, respectively) and WB (0.38 ± 0.01 vs 0.57 ± 0.03, P < 0.01) (n = 8 in each group).
CONCLUSION Sequential stress could induce a potential rat model of anxiety-like GHS of FD, which could be used to research the mechanisms of this intractable disease.
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Affiliation(s)
- Fu-Chun Jing
- Department of Gastroenterology, Second Hospital Affiliated to the Medical School of Xi’an Jiao Tong University, Xi’an 710004, Shaanxi Province, China
- Department of Digestive Diseases, Baoji People’s Hospital Affiliated to the Medical School of Yan’an University, Baoji 721000, Shaanxi Province, China
| | - Jun Zhang
- Department of Gastroenterology, Second Hospital Affiliated to the Medical School of Xi’an Jiao Tong University, Xi’an 710004, Shaanxi Province, China
| | - Chen Feng
- Department of Gastroenterology, Second Hospital Affiliated to the Medical School of Xi’an Jiao Tong University, Xi’an 710004, Shaanxi Province, China
| | - Yuan-Yuan Nian
- Department of Gastroenterology, Second Hospital Affiliated to the Medical School of Xi’an Jiao Tong University, Xi’an 710004, Shaanxi Province, China
| | - Jin-Hai Wang
- Department of Gastroenterology, Second Hospital Affiliated to the Medical School of Xi’an Jiao Tong University, Xi’an 710004, Shaanxi Province, China
| | - Hao Hu
- Department of Pharmacology, Health Science Center, Xi’an Jiao Tong University, Xi’an 710061, Shaanxi Province, China
- Basic Medical Experiment Teaching Center, Health Science Center, Xi’an Jiao Tong University, Xi’an 710061, Shaanxi Province, China
| | - Bao-De Yang
- Department of Pharmacology, Health Science Center, Xi’an Jiao Tong University, Xi’an 710061, Shaanxi Province, China
- Basic Medical Experiment Teaching Center, Health Science Center, Xi’an Jiao Tong University, Xi’an 710061, Shaanxi Province, China
| | - Xiao-Ming Sun
- Department of Pharmacology, Health Science Center, Xi’an Jiao Tong University, Xi’an 710061, Shaanxi Province, China
- Basic Medical Experiment Teaching Center, Health Science Center, Xi’an Jiao Tong University, Xi’an 710061, Shaanxi Province, China
| | - Jian-Yun Zheng
- Department of Pathology, the First Affiliated Hospital of Xi’an Medical University, Xi’an 710077, Shaanxi Province, China
| | - Xiao-Ran Yin
- Department of Gastroenterology, Second Hospital Affiliated to the Medical School of Xi’an Jiao Tong University, Xi’an 710004, Shaanxi Province, China
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Yu S, Jing L, Yin XR, Wang MC, Chen YM, Guo Y, Nan KJ, Han LL. MiR-195 suppresses the metastasis and epithelial-mesenchymal transition of hepatocellular carcinoma by inhibiting YAP. Oncotarget 2017; 8:99757-99771. [PMID: 29245938 PMCID: PMC5725129 DOI: 10.18632/oncotarget.20909] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 08/08/2017] [Indexed: 01/17/2023] Open
Abstract
MiR-195, a novel cancer-related microRNA, was previously reported to play an important role in many malignancies. This study aimed to investigate the role of miR-195 mediated epithelial-mesenchymal transition (EMT) and the progression of hepatocellular carcinoma (HCC) as well as the underlying mechanisms. Our result demonstrated that miR-195 were significantly down regulated in HCC and its decreased expression is associated with poor clinical features of HCC patients. Oppositely, expression level of YAP was significantly higher in HCC tissues, and the level of YAP in metastatic tissues was significantly higher. We also found that a strong inversely association between low level expression of miR-195 and high level of YAP in HCC tissues. Notably, this study confirmed that miR-195, YAP and their combination were valuable predictors for the prognosis of HCC patients. We also explored that miR-195 inhibits HCC growth and metastatic capacity. Mechanistically, we confirm that miR-195 inhibits the migration, invasion and EMT of HCC cells by suppressing YAP. Lastly, we revealed YAP was not only the downstream of miR-195 in HCC, but also mediated the promoting effects of miR-195 on the metastasis and EMT of HCC cells. Taken together, miR-195 inhibits the metastasis and EMT in HCC by targeting YAP. MiR-195/YAP pathway may potentially act as novel biomarker and attractive therapeutic target in HCC.
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Affiliation(s)
- Shuo Yu
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province 710004, China
| | - Li Jing
- Department of Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province 710061, China
| | - Xiao-Ran Yin
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province 710004, China
| | - Min-Cong Wang
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province 710004, China
| | - Yi-Meng Chen
- Department of Engineering Research Center of Bio-diagnosis and Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province 710004, China
| | - Ya Guo
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province 710004, China
| | - Ke-Jun Nan
- Department of Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province 710061, China
| | - Li-Li Han
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province 710004, China
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Ma HB, Huang S, Yin XR, Zhang Y, Di ZL. Apoptotic pathway induced by diallyl trisulfide in pancreatic cancer cells. World J Gastroenterol 2014; 20:193-203. [PMID: 24415872 PMCID: PMC3886008 DOI: 10.3748/wjg.v20.i1.193] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Revised: 09/12/2013] [Accepted: 11/05/2013] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the effects of diallyl trisulfide (DATS), a garlic-derived organosulfur compound, in pancreatic cancer cells.
METHODS: Human pancreatic cancer cells with wild-type p53 gene (Capan-2) and normal pancreatic epithelial cells (H6C7) were cultured in RPMI1640. DATS was prepared at a concentration of 100 μmol/L. Cell viability was determined via the methyl thiazolyl tetrazolium assay. Apoptotic cells were detected by TUNEL assay. Cell cycle analysis was performed using flow cytometry. Protein expression was determined by Western blot. Bax and Bcl-2 expression was detected by immunofluorescence. Apoptosis genes and cell cycle were assessed by quantitative real-time polymerase chain reaction.
RESULTS: DATS suppressed the viability of cultured human pancreatic cancer cells (Capan-2) by increasing the proportion of cells in the G2/M phase and induced apoptotic cell death. Western blot analysis indicated that DATS enhanced the expression of Fas, p21, p53 and cyclin B1, but downregulated the expression of Akt, cyclin D1, MDM2 and Bcl-2. DATS induced cell cycle inhibition which was correlated with elevated levels of cyclin B1 and p21, and reduced levels of cyclin D1 in Capan-2 cells and H6C7 cells. DATS-induced apoptosis was markedly elevated in Capan-2 cells compared with H6C7 cells, and this was correlated with elevated levels of cyclin B1 and p53, and reduced levels of Bcl-2. DATS-induced apoptosis was correlated with down-regulation of Bcl-2, Akt and cyclin D1 protein levels, and up-regulation of Bax, Fas, p53 and cyclin B protein levels in Capan-2 cells.
CONCLUSION: DATS induces apoptosis of pancreatic cancer cells (Capan-2) and non-tumorigenic pancreatic ductal epithelial cells (H6C7).
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Zhang M, Yin XR, Luo YY, Lin X, Wang MC, He PC, Li J, Guo GL, Cai RH, Liu YL. [In vitro anti-myeloma effects induced by myeloma idiotype-protein pulsed dendritic cell vaccine]. Zhonghua Xue Ye Xue Za Zhi 2005; 26:593-7. [PMID: 16532967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
OBJECTIVE To investigate the specific antitumor immune response induced by idiotype protein (Id)-pulsed dendritic cells (DC) in vitro. METHODS DC was generated from peripheral blood monocytes of the multiple myeloma (MM) patients using GM-CSF, IL-4, and TNF-alpha. The DCs were pulsed with idiotypic fragment, the F(ab')2 fragment of M protein from MM patient at the immature stage. The morphologic characteristics of the cells were observed with light and electron microscopes. The phenotypic features were analyzed with FACS, MTT assay was employed to evaluate the proliferation of autologous T cells and the inhibition rate of MM cells. RESULTS DC precursors in peripheral blood could be induced to typical mature DC in medium containing GM-CSF, IL-4 and TNF-alpha. Mature DC with Id could increase the proliferation of the autologous T cells and activate naive T cells to become tumor specialized cytotoxic T lymphocytes (CTL). The CTL at different doses showed significant inhibition on or killing ability to autologous MM cells in vitro. CONCLUSIONS In a suitable cytokine environment, the DC precursors from peripheral blood of MM patients could be induced to functional DC, and vaccination of Id-pulsed DC could induce active antitumor immune response.
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Affiliation(s)
- Mei Zhang
- Department of Hematology, First Hospital of Xi'an Jiaotong University, Xi'an 710061, China
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Yin XR, Zhang M, Luo YY, Lin X, He PC, Chen LM, Cai RB, Guo GL. [Induction of active antitumor immune response by myeloma idiotype protein-pulsed dendritic cells]. Ai Zheng 2005; 24:657-62. [PMID: 15946473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
BACKGROUND & OBJECTIVE Most multiple myeloma (MM) patients could not be cured by high-dose chemotherapy and bone marrow transplantation. This study was designed to investigate in vitro killing effect of tumor-specific cytotoxic T lymphocytes (CTLs) stimulated by idiotype protein (Id)-pulsed dendritic cells (DCs) on autologous MM cells. METHODS DCs were generated from peripheral blood monocytes of 6 MM patients using interleukin-4 (IL-4) and granulocyte-macrophage colony-stimulating factor (GM-CSF). After cultured for 5 days, immature DCs were pulsed with Idû tumor necrosis factor-alpha (TNF-alpha) was added at the 7th day. Id-pulsed DCs were cocultured with autologous T cells for 3 days to induce tumor-specific CTLs. MTT assay was used to detect proliferation of autologous T cells, and evaluate killing effect of CTLs on autologous MM cells. RESULTS Mature DCs were successfully induced. Id-pulsed DCs markedly increased proliferation of autologous T cells in a dose-dependent manner; stimulation index (SI) of Id-pulsed DCs was the highest [(39.1+/-6.0)%] when the radio of DCs to T cells was 10:1, which was significantly higher than those of unpulsed mature DCs [(19.3+/-7.7)%], Id-pulsed immature DCs [(15.9+/-6.1)%], and unpulsed immature DCs [(11.4+/-4.9)%] (P < 0.01). Id-pulsed DCs induced anti-MM activity of CTLs in a dose-dependent manner. Unpulsed mature DCs also induced cytotoxicity of CTLs against autologous MM cellsû however, when DC:T was 30:1, killing rate of MM cells was significantly higher in Id-pulsed mature DCs group than in unpulsed mature DCs group [(70.1+/-7.9)% vs. (40.8+/-7.8)%,P < 0.05]. KRN7000-pulsed mature DCs stimulated proliferation of allogeneic T cells in a dose-dependent manner; when DC:T was 1:10, SI was significantly higher in KRN7000-pulsed mature DCs group than in unpulsed mature DCs group [(38.5+/-5.7)% vs. (20.2+/-5.7)%, P < 0.05]. CONCLUSIONS Mature DCs could be induced and Id with biological activity could be extracted from peripheral blood of MM patients. Id-pulsed DCs could induce antitumor immune response. KRN7000 could improve the immune function of in vitro cultured DCs.
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Affiliation(s)
- Xiao-Ran Yin
- Department of Hematology, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P. R. China
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Yu CX, Zhu YC, Yin XR, He W, Xu YL, Guan XH. [Screening the mimic antigen epitopes of triosephosphate isomerase of Schistosoma japonicum Chinese strain (Sjc-Tpi) with random phage peptide library]. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 2003; 19:11-4. [PMID: 12572015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To screen the mimic antigen epitopes of the triose phosphate isomerase of Schistosoma japonicum Chinese strain (SjC-TPI) and investigate their immunogenicity. METHODS The random phage peptide library (PH.D.-12) was screened with the purified antibody(IgG) against SjC-TPI to get the positive phage which contained the mimic antigen epitopes of SjC-TPI, and the immuno-characterization of the mimic antigen epitopes were investigated. RESULTS Two mimic antigen epitopes (M1, M2) of SjC-TPI were obtained. The immuno-sera of mice (Kunming strain) against the positive phages could recognize both the SjC-TPI and the protein of the positive phages. The DNA sequencing data showed no homology between the sequences of the deduced amino acid of the two mimic antigen peptides and the amino acid of SjC-TPI. CONCLUSION The two mimic antigen epitopes of SjC-TPI obtained are imitative epitopes of the configuration antigen of SjC-TPI.
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Affiliation(s)
- C X Yu
- Jiangsu Institute of Parasitic Diseases, Wuxi 214064
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11
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Ren JG, Zhu YC, Harn DA, Yu CX, Yin XR, Si J, He W, Xu M, Hua WQ, Xu YL. [Protective immunity induced by 23 kDa membrane protein DNA vaccine of Schistosoma japonicum Chinese strain in mice]. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 2003; 19:336-9. [PMID: 12572063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To develop 23 kDa membrane protein DNA vaccine of Schistosoma japonicum Chinese strain and test its protective efficacy in infected C57BL/6 mice. METHODS The full length cDNA encoding SjC23 amplified from pUC19-SjC23 subcloned into pcDNA3.1. 48 female mice were divided into three groups: A, B and C. Group A (control group) was each immunized i.m. with 100 micrograms of pcDNA3.1; group B (SjC23 group) was each immunized i.m. with 100 micrograms of pcDNA3.1-SjC23; group C (SjC23 + IL-12) was each immunized i.m. with a mixture of 100 micrograms of pcDNA3.1-SjC23, 100 micrograms of pcDNA3.1-p35 and 100 micrograms of pcDNA-p40, followed by two boosts of the same DNA once every two weeks. All the mice were challenged with 45 cercariae at week 8, killed and perfused for worms at week 14. The expression of SjC23 and p35, p40 in muscle tissue was determined by immuno-histochemical method. By the culture of spleen cells, the production of IL-2, IL-4, IL-10 and IFN-gamma after the stimulation of rSjC23-HD was determined two weeks before and after challenge. Anti-SjC23 antibodies were tested by Western blotting. RESULTS SjC23 and p35, p40 were all expressed on the membrane and in the plasma of muscle cells of the infected mice. Significant increase of IL-2 and IFN-gamma in SjC23 and SjC23 + IL-12 groups was observed before and after challenge. Western blotting showed that after the third immunization (before challenge) 8 out of 10 sera from SjC23 group and 9 out of 10 sera from SjC23 + IL-12 group were positive. The worm reduction rate in SjC23 group and SjC23 + IL-12 group was 26.9% and 35.4%, respectively; the number of eggs in liver tissue was reduced by 22.2% and 28.4%, respectively. CONCLUSION pcDNA3.1-SjC23 DNA vaccine could induce partial protection against Schistosoma japonicum in C57BL/6 mice.
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Affiliation(s)
- J G Ren
- Jiangsu Institute of Parasitic Diseases, Wuxi 214064
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Liang CK, Guan NY, Ma F, Zhang Y, Wang EM, Yin XR. [Carcinogenicity in mice of soot extract collected from Xuan Wei County]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 1983; 5:307-10. [PMID: 6329534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Yin XR. [Treatment of oral malignant tumors with CO2 laser---report of 11 cases]. Zhonghua Kou Qiang Ke Za Zhi 1983; 18:121-2. [PMID: 6416765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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