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Zhu Y, Tang H, Zhao H, Lu J, Lin K, Ni J, Zhao B, Wu G, Tan C. Vinpocetine represses the progression of nonalcoholic steatohepatitis in mice by mediating inflammasome components via NF-κB signaling. Gastroenterol Hepatol 2024; 47:366-376. [PMID: 37562770 DOI: 10.1016/j.gastrohep.2023.07.006] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 06/15/2023] [Accepted: 07/18/2023] [Indexed: 08/12/2023]
Abstract
BACKGROUND Inflammasome activation is known to be involved in nonalcoholic steatohepatitis (NASH). Vinpocetine is a derivative of vincamine and is reported to suppress the activation of inflammasome. METHODS This study explored the therapeutical potential of Vinpocetine on NASH. Mice were fed with a choline-deficient (MCD) or chow diet in the presence or absence of Vinpocetine for 8 weeks. H&E staining and biochemical assays were determined to evaluate the hepatic steatosis and fibrosis symptoms. In addition, primary hepatocytes and Kupffer cells were isolated and induced by MCD or lipopolysaccharides/cholesterol crystals with or without Vinpocetine. ELISAs, qPCR, and Western blotting were applied to determine the levels of NASH-related biomarkers in both in vivo mouse model and in vitro cell models. RESULTS Treatment of Vinpocetine did not cause observable side effects against and MCD-induced cells and mouse NASH model. However, treatment of Vinpocetine ameliorated hepatic steatosis and fibrosis and suppressed the levels of alanine transaminase and aspartate transferase in the mouse NASH model. In addition, treatment of Vinpocetine suppressed the mRNA and protein levels of inflammasome components both in vitro and in vivo. CONCLUSION Vinpocetine suppressed NASH in mice by mediating inflammasome components via nuclear factor κB signaling.
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Affiliation(s)
- Yingwei Zhu
- Department of Gastroenterology, Jiangnan University Medical Center (JUMC), No. 68 Zhongshan Road, Wuxi 214002, Jiangsu, China; Department of Gastroenterology, Wuxi No. 2 People's Hospital, Affiliated Wuxi Clinical College of Nantong University, No. 68 Zhongshan Road, Wuxi 214002, Jiangsu, China
| | - Hong Tang
- Department of Pathology, Jiangnan University Medical Center (JUMC), No. 68 Zhongshan Road, Wuxi 214002, Jiangsu, China
| | - Han Zhao
- Department of Gastroenterology, Jiangnan University Medical Center (JUMC), No. 68 Zhongshan Road, Wuxi 214002, Jiangsu, China
| | - Jian Lu
- Department of Gastroenterology, Jiangnan University Medical Center (JUMC), No. 68 Zhongshan Road, Wuxi 214002, Jiangsu, China
| | - Kai Lin
- Department of Gastroenterology, Jiangnan University Medical Center (JUMC), No. 68 Zhongshan Road, Wuxi 214002, Jiangsu, China
| | - Jingbin Ni
- Department of Gastroenterology, Jiangnan University Medical Center (JUMC), No. 68 Zhongshan Road, Wuxi 214002, Jiangsu, China
| | - Bo Zhao
- Department of Gastroenterology, Jiangnan University Medical Center (JUMC), No. 68 Zhongshan Road, Wuxi 214002, Jiangsu, China
| | - Gaojue Wu
- Department of Gastroenterology, Jiangnan University Medical Center (JUMC), No. 68 Zhongshan Road, Wuxi 214002, Jiangsu, China; Department of Gastroenterology, Wuxi No. 2 People's Hospital, Affiliated Wuxi Clinical College of Nantong University, No. 68 Zhongshan Road, Wuxi 214002, Jiangsu, China.
| | - Chunxiao Tan
- Department of Gastroenterology, Jiangnan University Medical Center (JUMC), No. 68 Zhongshan Road, Wuxi 214002, Jiangsu, China.
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Wang L, Yang S, Mei C, Tang N, Wang J, Yu Q, Wang G, Wu G, Zhao J, Chen W. Lactobacillus paracasei Relieves Constipation by Acting on the Acetic Acid-5-HT-Intestinal Motility Pathway. Foods 2023; 12:4176. [PMID: 38002233 PMCID: PMC10670763 DOI: 10.3390/foods12224176] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/12/2023] [Accepted: 11/18/2023] [Indexed: 11/26/2023] Open
Abstract
Constipation is a major health concern worldwide and requires effective and safe treatment options. In this study, we selected ten strains of two species of lactobacilli to identify whether they were effective against constipation induced by loperamide administration in BALB/c mice. Monitoring of constipation-related indicators indicated that Lactobacillus paracasei (L. paracasei) mainly acted on the whole intestinal peristalsis to relieve constipation. Furthermore, through the detection of biological, chemical, mechanical, and immune barriers in mice, it was discovered that L. paracasei changed the relative abundance of bacteria related to the levels of acetic acid and 5-hydroxytryptamine (5-HT) (such as by increasing the relative abundance of Odoribacter and Clostridium, and reducing the relative abundance of Mucispirillum, Ruminococcus, Coprobacillus, and Dorea), increased the concentration of acetic acid in the intestine, which stimulated enterochromaffin cells, promoted 5-HT synthesis in the colon, enhanced intestinal motility, and relieved constipation. In conclusion, this study provides a theoretical foundation for the development of personalized products for the treatment of constipation.
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Affiliation(s)
- Linlin Wang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (L.W.); (S.Y.); (C.M.); (N.T.); (J.W.); (Q.Y.); (G.W.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Shurong Yang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (L.W.); (S.Y.); (C.M.); (N.T.); (J.W.); (Q.Y.); (G.W.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Chunxia Mei
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (L.W.); (S.Y.); (C.M.); (N.T.); (J.W.); (Q.Y.); (G.W.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Nan Tang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (L.W.); (S.Y.); (C.M.); (N.T.); (J.W.); (Q.Y.); (G.W.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Jialiang Wang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (L.W.); (S.Y.); (C.M.); (N.T.); (J.W.); (Q.Y.); (G.W.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Qiangqing Yu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (L.W.); (S.Y.); (C.M.); (N.T.); (J.W.); (Q.Y.); (G.W.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Gang Wang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (L.W.); (S.Y.); (C.M.); (N.T.); (J.W.); (Q.Y.); (G.W.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Gaojue Wu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (L.W.); (S.Y.); (C.M.); (N.T.); (J.W.); (Q.Y.); (G.W.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Department of Gastroenterology, Jiangnan University Medical Center, Wuxi 214002, China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (L.W.); (S.Y.); (C.M.); (N.T.); (J.W.); (Q.Y.); (G.W.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
| | - Wei Chen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (L.W.); (S.Y.); (C.M.); (N.T.); (J.W.); (Q.Y.); (G.W.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
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Yu T, Ma FH, An Q, Cao XL, Xiao G, Wu GJ. [The safety and efficacy of prophylactic hyperthermic intraperitoneal chemotherapy for elderly patients with locally advanced gastric cancer: a propensity score matching analysis]. Zhonghua Yi Xue Za Zhi 2023; 103:2867-2873. [PMID: 37726993 DOI: 10.3760/cma.j.cn112137-20230319-00435] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
Objective: To evaluate the safety and efficacy of prophylactic hyperthermic intraperitoneal chemotherapy (HIPEC) on elderly patients diagnosed with locally advanced gastric cancer based on a propensity score matching analysis. Methods: Clinical data of elderly patients with locally advanced gastric cancer who underwent radical gastrectomy in Beijing Hospital from January 2017 to December 2021 were retrospectively collected. According to whether HIPEC was used, the patients were divided into HIPEC group (radical gastrectomy combined with HIPEC) and control group (radical gastrectomy alone), and 29 patients in HIPEC group and 122 patients in control group. After 1∶1 matching of PSM, there were 28 patients in each group. The clinicopathological data, surgical data, postoperative recovery and long-term survival of the two groups were compared and analyzed. Results: Before PSM, the mean age in the HIPEC group was (70.7±4.0) years, and in the control group was (73.1±5.8) years (P=0.011). After PSM, the mean age in the HIPEC group was (70.9±3.9) years, and it was (71.8±5.4) years in the control group (P=0.739). Before PSM, the incidence of postoperative complications was 20.7% (6 cases) in the HIPEC group and 26.2% (32 cases) in the control group (P=0.639). After PSM, the incidence of postoperative complications was 21.4% (6 cases) in the HIPEC group and 14.3% (4 cases) in the control group (P=0.730). Before PSM, the mean duration of hospitalization after radical gastrectomy was (13.6±7.6) days in HIPEC group and (16.2±13.0) days in control group, respectively (P=0.312). After PSM, the mean duration of hospitalization after radical gastrectomy was (13.7±7.8) days in HIPEC group and (15.4±9.7) days in control group, respectively (P=0.479). Before PSM, the 1-and 3-year overall survival rates of the HIPEC group were 88.2% and 69.7%, and 88.0% and 66.1% for control group, respectively, with no statistical difference between the two groups in overall survival (P=0.499). After PSM, the 1-and 3-year overall survival rates of the HIPEC group were 86.8% and 69.7%, and 93.1% and 67.5% for control group, respectively, with no statistical difference between the two groups in overall survival (P=0.425). Before PSM, the 1-and 3-year disease-free survival rates of the HIPEC group were 88.2% and 67.1%, and 87.8% and 64.3% for control group, respectively, with no statistical difference between the two groups in disease-free survival (P=0.863). After PSM, the 1-and 3-year disease-free survival rates of the HIPEC group were 88.2% and 62.8%, and 93.7% and 64.7% for control group, respectively, with no statistical difference between the two groups in disease-free survival (P=0.804). Conclusions: Radical surgery combined with HIPEC for elderly patients with gastric cancer does not increase postoperative complications and postoperative recovery time. However, there was no significant difference in overall survival and disease-specific survival between the two groups.
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Affiliation(s)
- T Yu
- Department of General Surgery, Department of Gastrointestinal Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - F H Ma
- Department of General Surgery, Department of Gastrointestinal Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Q An
- Department of General Surgery, Department of Gastrointestinal Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X L Cao
- Department of General Surgery, Department of Gastrointestinal Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - G Xiao
- Department of General Surgery, Department of Gastrointestinal Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - G J Wu
- Department of General Surgery, Department of Gastrointestinal Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
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An Q, Shi JX, Cui J, Li ZJ, Ma FH, Xiao G, Jia WW, Tang DN, Zhao G, Wu GJ. [Analysis of prognosis and related factors in oldest-old patients with left-side or right-side colon cancer after hemicolectomy]. Zhonghua Yi Xue Za Zhi 2023; 103:1666-1672. [PMID: 37302856 DOI: 10.3760/cma.j.cn112137-20221008-02102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Objective: This study aimed to explore the difference of prognosis in oldest-old colon cancer patients between the left-side and right-side hemicolectomy. Methods: A total of 238 oldest-old (≥75 years old) colon cancer patients who received surgical treatment in Gastrointestinal Surgery Department of Beijing Hospital from December 2010 to December 2020 were retrospectively collected. They were divided into right-side hemicolectomy (RCC) group (130 cases) and left-side hemicolectomy (LCC) group (108 cases) by surgical methods. The difference in postoperative short-term complications and long-term prognosis was compared between the two groups, and the related factors of postoperative death was analyzed using multivariate Cox regression model. Results: The age of 238 oldest-old patients with colon cancer ranged from 75 to 93 years old (80.5±3.7). There were 128 males and 110 females. The ages of patients in the LCC group and RCC group were (80.4±3.7) and (80.6±3.7) years old (P=0.699), respectively. There was no significant difference in gender, body mass index (BMI) and co-existing chronic diseases between two groups (P>0.05). The proportion of the duration of surgery exceeding 170 min in the LCC group was significantly higher than that in the RCC group (56.5% vs 43.1%, P=0.039). The incidence of postoperative short-term complications in RCC group was slightly higher than LCC group (P>0.05), and there was no significant difference in overall survival (OS), tumor-specific survival (CSS) and disease-free survival (DFS) between two groups. However, the two groups had different prognostic risk factors, pathological Ⅳ stage (HR=28.970,95%CI:1.768-474.813,P=0.018), intraoperative bleeding (HR=2.297,95%CI:1.351-3.907,P=0.002) and cancer nodules (HR=2.044,95%CI:1.047-3.989,P=0.036) were independent prognostic risk factors in LCC group. Underweight (HR=0.428,95%CI:0.192-0.955,P=0.038), overweight(HR=0.316,95%CI:0.125-0.800,P=0.015),obesity (HR=0.211,95%CI:0.067-0.658,P=0.007), lymph node metastasis (HR=2.682,95%CI:1.497-4.807,P=0.001), tumor nodule (HR=2.507,95%CI:1.301-4.831,P=0.027) and postoperative length of stay of 9 days (HR=1.829,95%CI:1.070-3.128,P=0.006) were independent risk factors for poor prognosis in RCC group. Conclusions: The duration of surgery of oldest-old colon cancer patients in the LCC group was longer than that in the RCC group. However, there was no significant difference in the incidence of postoperative complications between the two groups. High pathological stage, more intraoperative bleeding and cancer nodules were independent prognostic risk factors in the LCC group. Abnormal BMI, lymph node metastasis, cancer nodules and postoperative length of stay were independent risk factors for poor prognosis in the RCC group.
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Affiliation(s)
- Q An
- Department of General Surgery,Department of Gastrointestinal Surgery,Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J X Shi
- Department of General Surgery,Department of Gastrointestinal Surgery,Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J Cui
- Department of General Surgery,Department of Gastrointestinal Surgery,Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Z J Li
- Department of General Surgery,Department of Gastrointestinal Surgery,Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - F H Ma
- Department of General Surgery,Department of Gastrointestinal Surgery,Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - G Xiao
- Department of General Surgery,Department of Gastrointestinal Surgery,Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - W W Jia
- Department of General Surgery,Department of Gastrointestinal Surgery,Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - D N Tang
- Department of General Surgery,Department of Gastrointestinal Surgery,Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - G Zhao
- Department of General Surgery,Department of Gastrointestinal Surgery,Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - G J Wu
- Department of General Surgery,Department of Gastrointestinal Surgery,Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
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Wu ZY, Gao WJ, Cao J, Lyu CQ, Yu SF, Wang T, Huang DJY, Sun CX, Liao YJ, Pang ZC, Pang M, Yu H, Wang XP, Wu Z, Dong F, Wu GJ, Jiang XJ, Wang Y, Liu J, Deng L, Lu LM, Li L. [A descriptive analysis of tea consumption in adult twins in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:1241-1248. [PMID: 35981986 DOI: 10.3760/cma.j.cn112338-20211210-00964] [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: 06/15/2023]
Abstract
Objective: To describe the distribution characteristics of tea consumption in adult twins recruited in the Chinese National Twin Registry (CNTR) and provide clues to genetic and environmental influences on tea consumption. Methods: Enrolled in CNTR during 2010-2018, 25 264 twin pairs aged 18 years and above were included in subsequent analysis. Random effect models were used to estimate tea consumption in the population and regional distribution characteristics. The concordance rate of the behavior and difference in consumption volume of tea within pairs were also described. Results: The mean age of all subjects was (35.38±12.45) years old. The weekly tea consumers accounted for 17.0%, with an average tea consumption of (3.36±2.44) cups per day. The proportion of weekly tea consumers was higher among males, 50-59 years old, southern, urban, educated, and the first-born in the twin pair (P<0.05), and lower among unmarried individuals (P<0.001). Within-pair analysis showed that the concordance rate of tea consumption of monozygotic (MZ) twins was higher than that of dizygotic (DZ) twins and the overall heritability of tea consumption was 13.45% (11.38%-15.51%). Stratified by the characteristics mentioned above, only in males, the concordance rate of MZ showed a tendency to be greater than that of DZ (all P<0.05). The differences in consumption volume of tea within twin pairs were minor in MZ among males (P<0.05), while the differences were not significant in female twins. Conclusion: There were discrepancies in the distribution of tea consumption among twins of different demographic and regional characteristics. Tea consumption was mainly influenced by environmental factors and slightly influenced by genetic factors. The size of genetic factors varied with gender, age, and region, and gender was a potential modified factor.
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Affiliation(s)
- Z Y Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China
| | - W J Gao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China
| | - J Cao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China
| | - C Q Lyu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China
| | - S F Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China
| | - T Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China
| | - D J Y Huang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China
| | - C X Sun
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China
| | - Y J Liao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China
| | - Z C Pang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China
| | - M Pang
- Qingdao Center for Disease Control and Prevention, Qingdao 266033, China
| | - H Yu
- Zhejiang Center for Disease Control and Prevention, Hangzhou 310051, China
| | - X P Wang
- Jiangsu Center for Disease Control and Prevention, Nanjing 210009, China
| | - Z Wu
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - F Dong
- Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - G J Wu
- Shanghai Center for Disease Control and Prevention, Shanghai 200336, China
| | - X J Jiang
- Tianjin Center for Disease Control and Prevention, Tianjin 300011, China
| | - Y Wang
- Qinghai Center for Disease Control and Prevention, Xining 810007, China
| | - J Liu
- Heilongjiang Center for Disease Control and Prevention, Harbin 150090, China
| | - L Deng
- Handan Center for Disease Control and Prevention, Handan 056001, China
| | - L M Lu
- Yunnan Center for Disease Control and Prevention, Kunming 650034, China
| | - Liming Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China
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Ke J, Gao WJ, Lyu CQ, Yu SF, Wang T, Huang DJY, Sun CX, Liao YJ, Pang ZC, Pang M, Yu H, Wang XP, Wu Z, Dong F, Wu GJ, Jiang XJ, Wang Y, Liu J, Deng L, Lu WH, Cao LM, Li L. [A descriptive analysis on coronary heart disease in adult twins in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:641-648. [PMID: 35589566 DOI: 10.3760/cma.j.cn112338-20211229-01030] [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: 06/15/2023]
Abstract
Objective: To describe the distribution characteristics of coronary heart disease in adult twins recruited from Chinese Twin Registry (CNTR), and provide clues and evidence for the effect of genetic and environmental influences on coronary heart disease. Methods: By using the data of CNTR during 2010-2018, a total of 34 583 twin pairs aged ≥18 years who completed questionnaire survey and had related information were included in the current study to analyze the population and area distribution characteristics of coronary heart disease. Random effect models were used to compare the differences between groups. The concordane rate of coronary heart disease were calculated respectively in monozygotic (MZ) twin pairs and dizygotic (DZ) twin pairs to estimate the heritability. Results: The twin pairs included in this analysis were aged (34.2±12.4) years. The overall prevalence rate of coronary heart disease in twin pairs was 0.7%. Twin pairs who were women, older, obese and lived in northern China had higher prevalence of coronary heart disease (P<0.05). Intra-pair analysis in the same-sex twin pairs found that the concordane rate of coronary heart disease was higher in MZ twin pairs (25.3%) than in DZ twins (7.4%), and the difference was statistically significant (P<0.001). The overall heritability of coronary heart disease was 19.3% (95%CI: 11.8%-26.8%). Stratified by gender, age and area, the concordane rate was still higher in MZ twin pairs than in DZ pairs. Participants who were women, aged 18-30 years or ≥60 years and lived in northern China had a higher heritability of coronary heart disease. Conclusion: The distribution of coronary heart disease in twin pairs differed in populations and areas. The prevalence of coronary heart disease was affected by genetic factors, but the effect varied with age, gender and area.
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Affiliation(s)
- J Ke
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - W J Gao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - C Q Lyu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - S F Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - T Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - D J Y Huang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - C X Sun
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - Y J Liao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - Z C Pang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - M Pang
- Qingdao Municipal Center for Disease Control and Prevention, Qingdao 266033, China
| | - H Yu
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - X P Wang
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Z Wu
- Sichuan Provincial Center for Disease Control and Prevention, Chengdu 610041, China
| | - F Dong
- Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - G J Wu
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336,China
| | - X J Jiang
- Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China
| | - Y Wang
- Qinghai Center for Diseases Prevention and Control, Xining 810007, China
| | - J Liu
- Heilongjiang Provincial Center for Disease Control and Prevention, Harbin 150090, China
| | - L Deng
- Handan Center for Disease Control and Prevention, Handan 056001, China
| | - W H Lu
- Yunnan Center for Disease Control and Prevention, Kunming 650034, China
| | - L M Cao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - Liming Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
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Zheng K, Gao WJ, Lyu CQ, Yu SF, Wang T, Huang DJY, Sun CX, Liao YJ, Pang ZC, Pang M, Yu H, Wang XP, Wu Z, Dong F, Wu GJ, Jiang XJ, Wang Y, Liu J, Deng L, Lu WH, Cao LM, Li L. [A descriptive analysis on type 2 diabetes in twins in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:634-640. [PMID: 35589565 DOI: 10.3760/cma.j.cn112338-20210705-00520] [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: 06/15/2023]
Abstract
Objective: To describe the distribution characteristics of type 2 diabetes in twins in Chinese National Twin Registry (CNTR), provide clues and evidence for revealing the influence of genetic and environmental factors for type 2 diabetes. Methods: Of all twins registered in the CNTR during 2010-2018, a total 18 855 twin pairs aged ≥30 years with complete registration information were included in the analysis. The random effect model was used to describe the population and area distribution characteristics and concordance of type 2 diabetes in twin pairs. Results: The mean age of the subjects was (42.8±10.2) years, the study subjects included 10 339 monozygotic (MZ) twin pairs and 8 516 dizygotic (DZ) twin pairs. The self-reported prevalence rate of type 2 diabetes was 2.2% in total population and there was no sighificant difference between MZ and DZ. Intra-twin pairs analysis showed that the concordance rate of type 2 diabetes was 38.2% in MZ twin pairs, and 16.0% in DZ twin pairs, the difference was statistically significant (P<0.001). The concordance rate of type 2 diabetes in MZ twin parts was higher than that in DZ twin pairs in both men and women, in different age groups and in different areas (P<0.05). Further stratified analysis showed that in northern China, only MZ twin pairs less than 60 years old were found to have a higher concordance rate of type 2 diabetes compared with DZ twin pairs (P<0.05). In southern China, the co-prevalence rate in male MZ twin pairs aged ≥60 years was still higher than that in DZ twin pairs (P<0.05). Conclusion: The twin pairs in this study had a lower self-reported prevalence of type 2 diabetes than the general population. The study results suggested that genetic factors play a role in type 2 diabetes prevalence in both men and women, in different age groups and in different areas, however, the effect might vary.
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Affiliation(s)
- K Zheng
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - W J Gao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - C Q Lyu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - S F Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - T Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - D J Y Huang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - C X Sun
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - Y J Liao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - Z C Pang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - M Pang
- Qingdao Municipal Center for Disease Control and Prevention, Qingdao 266033, China
| | - H Yu
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - X P Wang
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Z Wu
- Sichuan Provincial Center for Disease Control and Prevention, Chengdu 610041, China
| | - F Dong
- Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - G J Wu
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - X J Jiang
- Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China
| | - Y Wang
- Qinghai Center for Diseases Prevention and Control, Xining 810007, China
| | - J Liu
- Heilongjiang Provincial Center for Disease Control and Prevention, Harbin 150090, China
| | - L Deng
- Handan Center for Disease Control and Prevention, Handan 056001, China
| | - W H Lu
- Yunnan Center for Disease Control and Prevention, Kunming 650034, China
| | - L M Cao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - Liming Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
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Shi JX, Cui J, Li ZJ, Ma FH, Gao LL, Cao XL, Yu T, An Q, Xiao G, Wu GJ. [Contrastive analysis about the postoperative clinical characteristics of elderly patients with colorectal cancer in different age groups]. Zhonghua Yi Xue Za Zhi 2022; 102:563-568. [PMID: 35196778 DOI: 10.3760/cma.j.cn112137-20211029-02399] [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: 06/14/2023]
Abstract
Objective: To explore the postoperative clinical characteristics of elderly patients with colorectal cancer at different ages. Methods: Retrospective analysis was performed on the clinical data of 720 elderly patients with Colorectal Cancer in Beijing Hospitals from January 2012 to December 2019. There were 411 males and 309 females with a median age of 74 years. We divided the patients into young-old, old-old, oldest-old colorectal cancer patient groups and used chi-square comparative analysis of different groups of patients with clinical disease characteristics. Results: The oldest-old colorectal cancer patients tended to have normal body mass index (BMI), and the site of the disease shifted to the right. The incidence of concomitant diseases such as heart disease and hypertension increases gradually with age, and the incidence of diabetes is highest in old-old colorectal cancer patients. The proportion of open surgery was higher in the oldest-old group, but the operation time was shorter than the other two groups. In addition, the incidence of postoperative complications in elderly patients with colorectal cancer gradually increases with age, especially cardiac complications and other complications such as pneumonia, deep venous thrombosis of lower limbs, urinary retention, urinary tract infection, renal failure, cerebral hemorrhage, cerebral infarction, and so on. Conclusions: The BMI of the oldest-old patients tended to be normal, and the site of the disease shifted to the right. The incidence of heart disease, hypertension, and other concomitant diseases and postoperative complications in elderly patients with colorectal cancer gradually increase with age. Thus, the choice of treatment should be more individualized for elderly patients with colorectal cancer, and more attention should be paid to perioperative management.
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Affiliation(s)
- J X Shi
- Department of General Surgery, Department of Gastrointestinal Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J Cui
- Department of General Surgery, Department of Gastrointestinal Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Z J Li
- Department of General Surgery, Department of Gastrointestinal Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - F H Ma
- Department of General Surgery, Department of Gastrointestinal Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L L Gao
- Department of General Surgery, Department of Gastrointestinal Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X L Cao
- Department of General Surgery, Department of Gastrointestinal Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T Yu
- Department of General Surgery, Department of Gastrointestinal Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Q An
- Department of General Surgery, Department of Gastrointestinal Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - G Xiao
- Department of General Surgery, Department of Gastrointestinal Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - G J Wu
- Department of General Surgery, Department of Gastrointestinal Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
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Zhu Y, Zhao H, Lu J, Lin K, Ni J, Wu G, Tang H. Caspase-11-Mediated Hepatocytic Pyroptosis Promotes the Progression of Nonalcoholic Steatohepatitis. Cell Mol Gastroenterol Hepatol 2021; 12:653-664. [PMID: 33894425 PMCID: PMC8261017 DOI: 10.1016/j.jcmgh.2021.04.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 04/13/2021] [Accepted: 04/13/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND Nonalcoholic steatohepatitis (NASH) is an inflammatory disease with severe outcomes. Hepatocyte death, including apoptosis, necrosis, and pyroptosis, has been implicated in pathophysiology of NASH. Pyroptosis is mediated by inflammasome activation pathways including caspase-1-mediated canonical signaling pathway and caspase-11-mediated noncanonical signaling pathway. Until now, the precise role of caspase-11 in NASH remains unknown. In the present study, the potential roles of caspase-11 in NASH were explored. METHODS We established methionine- and choline-deficient diet (MCD)-induced NASH mice model using wild-type caspase-11-deficient mice. The expression of caspase-11, liver injury, fibrosis, inflammation, and activation of gasdermin D and interleukin-1β were evaluated. RESULTS Upregulated caspase-11 was detected in liver of mice with NASH. MCD-treated caspase-11-deficient mice had significantly decreased liver injury, fibrosis, and inflammation. The activation of gasdermin D and interleukin-1β was inhibited in caspase-11-deficient mice after MCD treatment. Overexpression of caspase-11 promoted steatohepatitis. CONCLUSIONS Caspase-11-mediated hepatocytic pyroptosis promotes the progression of NASH.
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Affiliation(s)
- Yingwei Zhu
- Department of Gastroenterology, Wuxi No. 2 People's Hospital, Affiliated Wuxi Clinical College of Nantong University, Wuxi, China; Department of Gastroenterology, Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi, China
| | - Han Zhao
- Department of Gastroenterology, Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi, China
| | - Jian Lu
- Department of Gastroenterology, Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi, China
| | - Kai Lin
- Department of Gastroenterology, Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi, China
| | - Jingbin Ni
- Department of Gastroenterology, Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi, China
| | - Gaojue Wu
- Department of Gastroenterology, Wuxi No. 2 People's Hospital, Affiliated Wuxi Clinical College of Nantong University, Wuxi, China; Department of Gastroenterology, Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi, China.
| | - Hong Tang
- Department of Pathology, Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, Wuxi, China.
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Zhao B, Hu R, Gong L, Wang X, Zhu Y, Wu G. Pyogenic Liver Abscess and Endogenous Endophthalmitis Due to K64-ST1764 Hypervirulent Klebsiella pneumoniae: A Case Report. Infect Drug Resist 2021; 14:71-77. [PMID: 33469321 PMCID: PMC7811456 DOI: 10.2147/idr.s289088] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 12/09/2020] [Indexed: 12/28/2022] Open
Abstract
RATIONALE Klebsiella pneumoniae (K. pneumoniae, KP) are divided into two types: classic K. pneumoniae (cKP) and hypervirulent K. pneumoniae (hvKP). hvKP causes liver abscess and metastatic infection. Here, we report one case with pyogenic liver abscess (PLA) and endogenous endophthalmitis (EE) due to a relatively rarely reported serotype of K. pneumoniae in China. PATIENT CONCERNS An 80-year old man presented with nausea, vomiting, and epigastric discomfort for 2 weeks. DIAGNOSES PLA was identified by CT scan and abdominal ultrasound. Urgent ophthalmologic consultation was performed. B-scan ocular ultrasound was done and he was diagnosed as EE. INTERVENTIONS Antibiotic treatment, intravitreal injection of eyes and eye drops were given. Percutaneous needle aspiration, evisceration, and drainage of the right eye were performed. OUTCOMES Cultures of the blood, the aspirated pus from the liver abscess, and the contents of the eyeball all yielded K. pneumoniae with a positive string test. The capsular serotype was K64. According to the existence of multiple virulence genes and the severe invasive clinical manifestation, this strain is regarded as a hvKp strain. Multilocus sequence typing (MLST) revealed the sequence type (ST) of this strain was K64-ST1764. Antimicrobial resistance genes, bla NDM-1 and bla KPC-2, were not detected in the genome. The patient lost his eyesight but his symptoms subsided. During 15 months follow-up, the result was satisfactory. LESSONS Here, we report one case with PLA due to a relatively rarely reported serotype of K. pneumoniae in China. This K64 K. pneumoniae strain is confirmed as hvKp by multiple methods. It is noteworthy that the sequence type is K64-ST1764 instead of the commonest ST11. Moreover, this strain is not considered a K. pneumoniae carbapenemase-producing K. pneumoniae (KPC-Kp) or a carbapenem-resistant K. pneumoniae (CRKP) as it is usually. Further follow-up and research are required to investigate this strain.
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Affiliation(s)
- Bo Zhao
- Department of Gastroenterology, The Affiliated Wuxi Second People’s Hospital of Nanjing Medical University, Wuxi, People’s Republic of China
| | - Renjing Hu
- Department of Clinical Laboratory, The Affiliated Wuxi Second People’s Hospital of Nanjing Medical University, Wuxi, People’s Republic of China
| | - Lei Gong
- Department of Gastroenterology, The Affiliated Wuxi Second People’s Hospital of Nanjing Medical University, Wuxi, People’s Republic of China
| | - Xiaoyun Wang
- Department of Gastroenterology, The Affiliated Wuxi Second People’s Hospital of Nanjing Medical University, Wuxi, People’s Republic of China
- Correspondence: Xiaoyun Wang Department of Gastroenterology, The Affiliated Wuxi Second People’s Hospital of Nanjing Medical University, Wuxi, People’s Republic of ChinaTel +86 15061857125Fax +86 510 685662052 Email
| | - Yingwei Zhu
- Department of Gastroenterology, The Affiliated Wuxi Second People’s Hospital of Nanjing Medical University, Wuxi, People’s Republic of China
| | - Gaojue Wu
- Department of Gastroenterology, The Affiliated Wuxi Second People’s Hospital of Nanjing Medical University, Wuxi, People’s Republic of China
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11
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Gui L, Xu Q, Huang J, Wu G, Tang H, Hui L, Hua P, Zhang L, Zhu Y. CYP2J2 promotes the development of hepatocellular carcinoma by increasing the EETs production to improve HIF-1α stability. Am J Transl Res 2020; 12:7923-7937. [PMID: 33437370 PMCID: PMC7791520] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 10/17/2020] [Indexed: 06/12/2023]
Abstract
OBJECTIVE This study aimed to explore the function and mechanism of Cytochrome P450 2J2 (CYP2J2) epoxygenase and epoxyeicosatrienoic acids (EETs) in the malignant development of hepatocellular carcinoma (HCC). METHOD The expressional levels of EETs and CYP2J2 in HCC tissues and cell lines were quantified by ELISA, western blot and RT-qPCR, respectively. The effects of EET and CYP2J2 on HCC development were analyzed by CCK-8 assays, flow cytometry analysis, colony formation and transwell assays. The effect of CYP2J2-EET metabolism on stability of HIF-1α was detected by western blot experiments. HIF-1α inhibitor, YC-1, was used to probe the relationship between HIF-1α and metastasis of HCC cells. Finally, xenograft experiments were established to investigate the function of CYP2J2-EETs metabolism in HCC tumorigenesis in vivo. RESULT CYP2J2, 11, 12-EET and 14, 15-EET were up-regulated in HCC tissues and Huh-7, HepG2 cell lines. Addition of exogenous 14, 15-EET accelerated proliferation and metastasis of HCC cells. Knockdown of CYP2J2 inhibited growth and metastasis of HCC cells and malignant xenograft, which was obviously reversed by addition of 14, 15-EET. Moreover, in Huh-7 and HepG2 cells, CYP2J2-EET metabolism elevated the expression of HIF-1α and its downstream factors including VEGFA, PDK1, GLUT1 and DDIT4 through suppressing the expression of PHD. Treatment of YC-1 remarkably suppressed the HCC cells proliferation and restored the effect of 14, 15-EET on tumor size in vivo. CONCLUSION The up-regulated levels of CYP2J2 and 14, 15-EET in HCC cells improved the stability of HIF-1α thourgh inhibiting PHD expression, which further promoted the malignant development of HCC.
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Affiliation(s)
- Liang Gui
- Department of Vascular Surgery, Beijing Hospital, National Center of GerontologyBeijing 100730, China
- Institute of Geriatric Medicine, Chinese Academy of Medical SciencesBeijing 100730, China
| | - Qiang Xu
- Department of Intervention, Wujin Hospital Affiliated to Jiangsu UniversityChangzhou 213002, Jiangsu, China
| | - Juju Huang
- Department of Gastroenterology, The Affiliated Wuxi No. 2 People’s Hospital of Nanjing Medical UniversityWuxi 214002, Jiangsu, China
| | - Gaojue Wu
- Department of Gastroenterology, The Affiliated Wuxi No. 2 People’s Hospital of Nanjing Medical UniversityWuxi 214002, Jiangsu, China
| | - Hong Tang
- Department of Gastroenterology, The Affiliated Wuxi No. 2 People’s Hospital of Nanjing Medical UniversityWuxi 214002, Jiangsu, China
| | - Li Hui
- Department of Gastroenterology, The Affiliated Wuxi No. 2 People’s Hospital of Nanjing Medical UniversityWuxi 214002, Jiangsu, China
| | - Ping Hua
- Department of Gastroenterology, The Affiliated Wuxi No. 2 People’s Hospital of Nanjing Medical UniversityWuxi 214002, Jiangsu, China
| | - Lili Zhang
- Department of Gastroenterology, The Affiliated Wuxi No. 2 People’s Hospital of Nanjing Medical UniversityWuxi 214002, Jiangsu, China
| | - Yingwei Zhu
- Department of Gastroenterology, The Affiliated Wuxi No. 2 People’s Hospital of Nanjing Medical UniversityWuxi 214002, Jiangsu, China
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12
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Wang G, Yang S, Sun S, Si Q, Wang L, Zhang Q, Wu G, Zhao J, Zhang H, Chen W. Lactobacillus rhamnosus Strains Relieve Loperamide-Induced Constipation via Different Pathways Independent of Short-Chain Fatty Acids. Front Cell Infect Microbiol 2020; 10:423. [PMID: 32974216 PMCID: PMC7466723 DOI: 10.3389/fcimb.2020.00423] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [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: 10/24/2019] [Accepted: 07/10/2020] [Indexed: 12/12/2022] Open
Abstract
Increasing researches have confirmed the relationship between slow-transit constipation and gut microbiota dysbiosis. Many population and animal experiments have identified probiotics as effectors for the relief of constipation symptoms, but the specific mechanism remains unclear. In this intervention study, Lactobacillus rhamnosus strains isolated from five different sources were administered to mice with loperamide-induced constipation, and the impacts of these strains on constipation-related indicators were evaluated. All five strains of L. rhamnosus were found to improve constipation to various degrees. However, contrary to previous studies, the abilities of L. rhamnosus strains to improve constipation symptoms were not associated with the levels of short-chain fatty acids (SCFAs) in the colon. The effects of different strains of L. rhamnosus on constipation relief were associated with different aspects of the GI tract, including gastrointestinal regulatory peptides, neurotransmitters, neurotrophic factors, and gut microbiota. The findings of this study demonstrate that L. rhamnosus strains can alleviate constipation-related symptoms via different pathways independent of SCFAs regulation. This study yields a new perspective for clinical use of probiotics to better improve constipation symptoms, by combining strains with different mechanisms for alleviation of constipation.
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Affiliation(s)
- Gang Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Shurong Yang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Shanshan Sun
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Qian Si
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Linlin Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Qiuxiang Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Gaojue Wu
- Department of Gastroenterology, The Affiliated Wuxi Second People's Hospital of Nanjing Medical University, Wuxi, China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China.,International Joint Research Laboratory for Probiotics, Jiangnan University, Wuxi, China.,(Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou, China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China.,(Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou, China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, China.,Wuxi Translational Medicine Research Center and Jiangsu Translational Medicine Research Institute Wuxi Branch, Wuxi, China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, China.,Beijing Innovation Centre of Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, China
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13
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Wu GJ, Xuan JL, Gong L. [An important supplement of pathophysiology of acute pancreatitis: the protective and therapeutic effects of ghrelin]. Zhonghua Nei Ke Za Zhi 2019; 58:929-932. [PMID: 31775461 DOI: 10.3760/cma.j.issn.0578-1426.2019.12.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- G J Wu
- Department of Gastroenterology, the Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi 214002, China
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14
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Zhu Y, Tang H, Zhang L, Gong L, Wu G, Ni J, Tang X. Suppression of miR-21-3p enhances TRAIL-mediated apoptosis in liver cancer stem cells by suppressing the PI3K/Akt/Bad cascade via regulating PTEN. Cancer Manag Res 2019; 11:955-968. [PMID: 30774424 PMCID: PMC6349085 DOI: 10.2147/cmar.s183328] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [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] [Indexed: 12/14/2022] Open
Abstract
Background TNF-related apoptosis-inducing ligand (TRAIL) functions as a selective apoptosis-inducing ligand in cancer cells with normal cells remaining unaffected; however, resistance limits its anticancer properties. Cancer stem cells (CSCs) are involved in the treatment of resistant cancer cases including liver cancer (LC). The aim of this study was to look into the approaches for increasing the sensitivity of liver cancer stem cells (LCSCs) toward TRAIL. Methodology PLC, HepG2 and Huh7 LC cell lines were used in this study. Quantitative reverse transcription PCR (qRT-PCR) analysis was done for evaluating the expression of miR-21-3b. Fluorescent-activated cell-sorting equipment was used for separation and identification of LCSCs and non-LCSCs. The cells were transfected with RNA along with miR-21-3p mimics, anti- miR-21-3p, miR-NC and the phosphatase and tensin homologue (PTEN) siRNA. MTT assay for cell viability, Luciferase assay for luciferase activity, Western blots for the expression of proteins and flow cytometry for the measurement of ROS and apoptosis, respectively, were carried out. Tumor xenografts nude mice were used for tumor growth in vivo. Results We found that miR-21-3p was overexpressed in LCSCs compared to non-LCSCs and that the suppression of miR-21-3p along with anti-miR-21-3p enhanced the sensitivity of LCSCs to TRAIL-mediated apoptosis. We further found that miR-21-3p regulated the expression of PTEN in Huh7-LCSCs directly and that the suppression of miR-21-3p enhanced the levels of PTEN. The study confirmed that inhibition of the PI3K/Akt/Bad signaling pathway was involved in enhancing TRAIL-mediated apoptosis of LC cells. Conclusion The study suggested that overexpression of miR-21-3p suppresses the sensitivity to TRAIL in LCSCs. This study concludes that the suppression of miR-21-3p is a potential approach for enhancing the sensitivity of LC cells toward TRAIL by PI3K/Akt/Bad cascade via the miR-21-3p/PTEN axis.
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Affiliation(s)
- Yingwei Zhu
- Department of Gastroenterology, The Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214002, People's Republic of China,
| | - Hong Tang
- Department of Pathology, The Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214002, People's Republic of China
| | - Lili Zhang
- Department of Gastroenterology, The Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214002, People's Republic of China,
| | - Lei Gong
- Department of Gastroenterology, The Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214002, People's Republic of China,
| | - Gaojue Wu
- Department of Gastroenterology, The Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214002, People's Republic of China,
| | - Jingbin Ni
- Department of Gastroenterology, The Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214002, People's Republic of China,
| | - Xuejun Tang
- Department of Gastroenterology, The Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214002, People's Republic of China,
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Abstract
Objective: While low anterior resection avoided a permanent stoma, it might also cause bowel dysfunction which can significantly impact patients' quality of life. The objective of this study was to identify the incidence and risk factors for the development of bowel dysfunction following rectal surgery. Methods: Patients undergoing anterior resection for rectal neoplasm between January 2010 and December 2015 were identified from a rectal cancer database at the Department of Gastrointestinal Surgery, Beijing Hospital. All patients were asked to fill in a low anterior resection syndrome (LARS) questionnaire. Clinical factors were compared between patients with major LARS and those with minor or no LARS using conditional logistic regression. Results: There was 254 patients enrolled in the study. One hundred and eleven (44.1%) had major LARS symptoms. Neoadjuvant radiotherapy (OR=2.814, 95%CI: 1.097-5.561, P<0.001), low tumor location (OR=3.568, 95%CI: 1.159-6.546, P<0.001) and anastomotic leakage (OR=6.574, 95%CI: 1.689-15.367, P<0.001) were independent risk factors for development of major LARS symptoms. Conclusions: For patients with high risk of low anterior resection syndrome, the potential for long-term poor functional results should be discussed with patients and form a part of the decision-making in individual treatment plans. Sphincter-preserving surgery should be performed in highly selected patients to avoid major bowel dysfunction.
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Affiliation(s)
- G J Wu
- Department of Gastrointestinal Surgery, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
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Dai XW, Xu Y, Zheng LW, Li LY, Li DD, Tan X, Gao F, Wang Y, Wu GJ. [Analysis of chromosome in 1 324 patients with oligozoospermia or azoosperm]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:774-777. [PMID: 30337734] [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: 06/08/2023]
Abstract
OBJECTIVE To explore the incidience of chromosome abnormality of the patients with oligozoospermia or azoospermia and male infertility, to discuss the relationship between the quantitative and structural abnormality of chromosome and to lay the foundation for the clinical diagnosis and consultation. METHODS A retrospective analysis was conducted from January 1, 2015 to May 1, 2016, in the Center for Reproduction Medicine, the Second Hospital of Jilin University, with male reproductive abnormalities history excluded. In the study, 1 324 cases were included with 448 cases of azoospermia and 876 cases of oligozoospermia. All the patients through ultrasound examination, color Doppler ultrasonography, the seminal plasma Zn determination, their hormone level determination, chromosome karyotype (the perinatal blood samples were obtained from the 1 324 patients with oligozoospermia or azoospermia for lymphocyte culture, then chromosomal specimens were prepared, G-banding analyses combined with clinical data were used to statistically analyze the incidence of chromosomal abnormality), Y chromosome azoospermia factor [PCR technique was used to detect SY157 locus, SY254 locus, and SY255 locus in male Y chromosome azoospermia factor (AZF) gene of the patients with oligozoospermia or azoospermia]. The relationship between chromosome abnormalities and oligozoospermia or azoospermia were analyzed. RESULTS Among the 876 cases of oligospermia patients, 78 cases were chromosome number abnormality and chromosomal structural abnormality, the abnormal number of sex chromosomes in 22 cases, and sex chromosomes and chromosome structural abnormalities in 56 cases; in the 448 cases of azoospermia patients, 91 cases were chromosomal structural abnormality and chromosome number abnormality, of them, 78 cases were of abnormal number of sex chromosomes, and 13 cases were of abnormal structure. In addition, 137 cases were of chromosome polymorphism in all the 1 324 patients, The incidence of Y chromosome abnormality in azoospermatism was higher than that of the 43 patients with Y chromosome AZF microdeletion. In addition, the asthenospermia and recurrent spontaneous abortion were closely related to Y chromosome abnormality and the chromosome translocations and inversions. CONCLUSION Oligozoospermia and azoospermia patients with abnormal chromosome karyotype have high incidence rate, and chromosome karyotype analyses were carried out on it, which is conducive to clinical diagnosis for the patients with abnormal chromosome karyotype. There is a close relationship between male infertility and abnormal karyotype. It is conducive to clinical diagnosis for the patients with infertility through chromosome karyotye analysis, which also provides evidence for genetic counseling.
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Affiliation(s)
- X W Dai
- Center for Reproduction Medicine, the Second Hospital of Jilin University, Changchun 130041, China
| | - Y Xu
- Center for Reproduction Medicine, the Second Hospital of Jilin University, Changchun 130041, China
| | - L W Zheng
- Center for Reproduction Medicine, the Second Hospital of Jilin University, Changchun 130041, China
| | - L Y Li
- Center for Reproduction Medicine, the Second Hospital of Jilin University, Changchun 130041, China
| | - D D Li
- Center for Reproduction Medicine, the Second Hospital of Jilin University, Changchun 130041, China
| | - X Tan
- Medical Insurance Office, the Second Hospital of Jilin University, Changchun 130041, China
| | - F Gao
- Center for Reproduction Medicine, the Second Hospital of Jilin University, Changchun 130041, China
| | - Y Wang
- Center for Reproduction Medicine, the Second Hospital of Jilin University, Changchun 130041, China
| | - G J Wu
- Center for Reproduction Medicine, the Second Hospital of Jilin University, Changchun 130041, China
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Wu GJ, Ma S, Zheng LW, Xu Y, Meng FH, Dai XW. [A complex chromosome translocation with male infertility of karyotype analysis and literature review]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:729-731. [PMID: 30122779] [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: 06/08/2023]
Abstract
One case of family chromosomal karyotype with complex chromosomal translocation and male infertility was reported. This case is a male, 30 years old, Han nationality, who did not receive contraception for 3 years after marriage. The phenotype and intelligence of the patients were normal, and there were no abnormalities in the external genitalia. No abnormalities were found in the prostate and spermatic vein. There was no history of parotitis or testicular trauma, no history of smoking, drinking history, denial of harmful substances and history of radioactive contact. There were no similar patients in the family, and the secondary sex was normal. The routine semen examination suggested that the active sperm was seldom seen. There were no obvious abnormalities in the serum endocrine examination of the patient. Cytogenetic examination: the patient's karyotype 46XY, t (10; 18; 21) (q22; p11.2; q11.2). There was no deletion in locus sY84, sY86, sY127, sY134, sY143, sY254 and sY255. His wife's examination showed no obvious abnormality, and her karyotype was normal. The parents of the patients were not close relatives. Their father's chromosome karyotype analysis was 46, XY, and Y chromosome microdeletion was normal. The chromosome karyotype of the parent was 46XX, t (10; 18; 21), and the parents of the patient also had a daughter, whose phenotype and intellectual development were normal, chromosome karyotype 46XX, t (10; 18; 21). In this case, the patient's balance translocation should be inherited by the mother. Because of the normal phenotype of the patient, there was no loss of genetic material, but the abnormal chromosomes might be passed to the offspring, and the proportion of the unbalanced gametes was very high. Through systematic review and review of the cases, it was concluded that the balanced translocation carriers only changed the relative position of the translocation segments on the chromosomes, retained the total number of the original genes, only changed the relative position of the genes on the chromosomes, and had no serious effect on the role of the gene and the development of the individual. The phenotype was normal. The patients were given symptomatic treatment to improve semen quality. It is recommended that pre-implantation genetic screening/diagnosis(PGS/PGD) be performed if necessary. It is to guide married men and women to choose the appropriate childbearing age, avoid unhealthy environmental contacts, and strengthen genetic screening before and after pregnancy, so as to achieve the goal of eugenics.
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Affiliation(s)
- G J Wu
- Reproductive Center, The Second Hospital of Jilin University, Changchun 130041, China
| | - S Ma
- Reproductive Center, The Second Hospital of Jilin University, Changchun 130041, China
| | - L W Zheng
- Reproductive Center, The Second Hospital of Jilin University, Changchun 130041, China
| | - Y Xu
- Reproductive Center, The Second Hospital of Jilin University, Changchun 130041, China
| | - F H Meng
- Reproductive Center, The Second Hospital of Jilin University, Changchun 130041, China
| | - X W Dai
- Reproductive Center, The Second Hospital of Jilin University, Changchun 130041, China
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Zhou Z, Gong L, Wang X, Hu Z, Wu G, Tang X, Peng X, Tang S, Meng M, Feng H. The role of regulatory B cells in digestive system diseases. Inflamm Res 2016; 66:303-309. [PMID: 27878329 DOI: 10.1007/s00011-016-1007-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 11/01/2016] [Accepted: 11/09/2016] [Indexed: 02/06/2023] Open
Abstract
INTRODUCTION The past decade has provided striking insights into a newly identified subset of B cells known as regulatory B cells (Bregs). In addition to producing antibody, Bregs also regulate diseases via cytokine production and antigen presentation. This subset of B cells has protective and potentially therapeutic effects. However, the particularity of Bregs has caused some difficulties in conducting research on their roles. Notably, human B10 cells, which are Bregs that produce interleukin 10, share phenotypic characteristics with other previously defined B cell subsets, and currently, there is no known surface phenotype that is unique to B10 cells. METHODS An online search was performed in the PubMed and Web of Science databases for articles published providing evidences on the role of regulatory B cells in digestive system diseases. RESULTS AND CONCLUSIONS Abundant evidence has demonstrated that Bregs play a regulatory role in inflammatory, autoimmune, and tumor diseases, and regulatory B cells play different roles in different diseases, but future work needs to determine the mechanisms by which Bregs are activated and how these cells affect their target cells.
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Affiliation(s)
- Zhenyu Zhou
- Division of Gastroenterology, Wuxi No.2 Hospital Affiliated with Nanjing Medical University, Zhong Shan Road 68, Wuxi, Jiang Su Province, China
| | - Lei Gong
- Division of Gastroenterology, Wuxi No.2 Hospital Affiliated with Nanjing Medical University, Zhong Shan Road 68, Wuxi, Jiang Su Province, China
| | - Xiaoyun Wang
- Division of Gastroenterology, Wuxi No.2 Hospital Affiliated with Nanjing Medical University, Zhong Shan Road 68, Wuxi, Jiang Su Province, China.
| | - Zhen Hu
- Division of Gastroenterology, Wuxi No.2 Hospital Affiliated with Nanjing Medical University, Zhong Shan Road 68, Wuxi, Jiang Su Province, China
| | - Gaojue Wu
- Division of Gastroenterology, Wuxi No.2 Hospital Affiliated with Nanjing Medical University, Zhong Shan Road 68, Wuxi, Jiang Su Province, China
| | - Xuejun Tang
- Division of Gastroenterology, Wuxi No.2 Hospital Affiliated with Nanjing Medical University, Zhong Shan Road 68, Wuxi, Jiang Su Province, China
| | - Xiaobin Peng
- Division of Gastroenterology, Wuxi No.2 Hospital Affiliated with Nanjing Medical University, Zhong Shan Road 68, Wuxi, Jiang Su Province, China
| | - Shuan Tang
- Division of Gastroenterology, Wuxi No.2 Hospital Affiliated with Nanjing Medical University, Zhong Shan Road 68, Wuxi, Jiang Su Province, China
| | - Miao Meng
- Division of Gastroenterology, Wuxi No.2 Hospital Affiliated with Nanjing Medical University, Zhong Shan Road 68, Wuxi, Jiang Su Province, China
| | - Hui Feng
- Division of Gastroenterology, Wuxi No.2 Hospital Affiliated with Nanjing Medical University, Zhong Shan Road 68, Wuxi, Jiang Su Province, China
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Yu T, Cao XL, Wu GJ, Zhao G, Jia WW, Xiao G, Wang X. [Analysis of clinical predictive factors of pathologic complete response after neoadjuvant chemoradiotherapy in rectal cancer]. Zhonghua Yi Xue Za Zhi 2016; 96:1274-7. [PMID: 27122460 DOI: 10.3760/cma.j.issn.0376-2491.2016.16.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To evaluate the clinical predictive factors associated with pathologic complete response (pCR) after neoadjuvant chemoradiotherapy in rectal cancer. METHODS A retrospective analysis was performed on clinical data of 87 patients with rectal cancer, who underwent neoadjuvant chemoradiotherapy followed by radical surgery from April 2007 to May 2015. All patients received pelvic intensity-modulated radiotherapy (50 Gy/25 fractions) with concurrent fluorouracil- based chemotherapy and then underwent radical surgery 4-8 weeks later. The clinical factors associated with pCR or non-pCR were analyzed by Logistic regression. RESULTS Eighty-three patients had completed treatment, of which 15 patients (18.1%) achieved pCR after neoadjuvant chemoradiotherapy. Univariate analysis showed non-diabetes(P=0.033), pre-chemoradiotherapy plasma glucose(≤6.1 mmol/L)(P=0.033), pre-chemoradiotherapy CEA(≤5 μg/L)(P=0.026), pre- chemoradiotherapy plasma lymphocytes count(≤1.5×10(9)/L)(P=0.042), pre- chemoradiotherapy plasma platelet(≤240×10(12))(P=0.043), tumor pathological type(adenocarcinoma)(P=0.036)were significantly correlated with pCR after neoadjuvant chemoradiotherapy in rectal cancer. Logistic regression revealed that non-diabetes, pre-chemoradiotherapy plasma glucose, pre-chemoradiotherapy CEA(≤5 μg/L), pre-chemoradiotherapy plasma lymphocytes count(≤1.5×10(9)/L), tumor pathological type(adenocarcinoma) were independent predictive factors of pCR after neoadjuvant chemoradiotherapy in rectal cancer. CONCLUSION Patients with non-diabetes, normal plasma glucose, normal CEA, lower plasma lymphocytes count and adenocarcinoma were associated with pCR after neoadjuvant chemoradiotherapy for rectal cancer.
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Affiliation(s)
- T Yu
- Department of General Surgery, Peking University First Hospital, Beijing 100034, China
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Abstract
GRAS proteins play vital roles in plant growth and development. Physic nut (Jatropha curcas L.) was found to have a total of 48 GRAS family members (JcGRAS), 15 more than those found in Arabidopsis. The JcGRAS genes were divided into 12 subfamilies or 15 ancient monophyletic lineages based on the phylogenetic analysis of GRAS proteins from both flowering and lower plants. The functions of GRAS genes in 9 subfamilies have been reported previously for several plants, while the genes in the remaining 3 subfamilies were of unknown function; we named the latter families U1 to U3. No member of U3 subfamily is present in Arabidopsis and Poaceae species according to public genome sequence data. In comparison with the number of GRAS genes in Arabidopsis, more were detected in physic nut, resulting from the retention of many ancient GRAS subfamilies and the formation of tandem repeats during evolution. No evidence of recent duplication among JcGRAS genes was observed in physic nut. Based on digital gene expression data, 21 of the 48 genes exhibited differential expression in four tissues analyzed. Two members of subfamily U3 were expressed only in buds and flowers, implying that they may play specific roles. Our results provide valuable resources for future studies on the functions of GRAS proteins in physic nut.
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Affiliation(s)
- Z Y Wu
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China.,University of Chinese Academy of Sciences, Beijing, China
| | - P Z Wu
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Y P Chen
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - M R Li
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - G J Wu
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - H W Jiang
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
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21
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Hu Z, Wang X, Gong L, Wu G, Peng X, Tang X. Role of high-mobility group box 1 protein in inflammatory bowel disease. Inflamm Res 2015; 64:557-63. [PMID: 26077468 DOI: 10.1007/s00011-015-0841-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Revised: 06/07/2015] [Accepted: 06/08/2015] [Indexed: 12/16/2022] Open
Abstract
High-mobility group box 1 (HMGB1) protein is a nuclear non-histone DNA-binding protein. It is released into the extracellular milieu and mediates inflammatory responses, which contribute to the pathogenesis of numerous inflammatory diseases, including inflammatory bowel disease (IBD). An online search was performed in PubMed and Web of Science databases for articles providing evidence on the role of HMGB1 in IBD. HMGB1 plays an important role in IBD pathogenesis. Application of HMGB1 antagonists reduced inflammatory reactions and ameliorated colitis in rodent models, which may provide new insights into the diagnosis and treatment of IBD.
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Affiliation(s)
- Zhen Hu
- Division of Gastroenterology, Wuxi No.2 Hospital Affiliated to Nanjing Medical University, Zhong Shan Road 68, Wuxi, Jiang Su, China
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Yuan JL, Wang FL, Yi XM, Qin WJ, Wu GJ, Huan Y, Yang LJ, Zhang G, Yu L, Zhang YT, Qin RL, Tian CJ. More than 10 years survival with sequential therapy in a patient with advanced renal cell carcinoma: a case report. Braz J Med Biol Res 2014; 48:34-38. [PMID: 25493380 PMCID: PMC4288490 DOI: 10.1590/1414-431x20144096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 04/29/2014] [Accepted: 09/22/2014] [Indexed: 12/04/2022] Open
Abstract
Although radical nephrectomy alone is widely accepted as the standard of care in
localized treatment for renal cell carcinoma (RCC), it is not sufficient for the
treatment of metastatic RCC (mRCC), which invariably leads to an unfavorable outcome
despite the use of multiple therapies. Currently, sequential targeted agents are
recommended for the management of mRCC, but the optimal drug sequence is still
debated. This case was a 57-year-old man with clear-cell mRCC who received multiple
therapies following his first operation in 2003 and has survived for over 10 years
with a satisfactory quality of life. The treatments given included several surgeries,
immunotherapy, and sequentially administered sorafenib, sunitinib, and everolimus
regimens. In the course of mRCC treatment, well-planned surgeries, effective
sequential targeted therapies and close follow-up are all of great importance for
optimal management and a satisfactory outcome.
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Affiliation(s)
- J L Yuan
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - F L Wang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - X M Yi
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - W J Qin
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - G J Wu
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Y Huan
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - L J Yang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - G Zhang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - L Yu
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Y T Zhang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - R L Qin
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - C J Tian
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
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Gong L, Yang B, Xu M, Cheng B, Tang X, Zheng P, Jing Y, Wu GJ. Bortezomib-induced apoptosis in cultured pancreatic cancer cells is associated with ceramide production. Cancer Chemother Pharmacol 2013; 73:69-77. [DOI: 10.1007/s00280-013-2318-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Accepted: 10/09/2013] [Indexed: 12/31/2022]
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Chen B, Xu M, Zhang H, Wang JX, Zheng P, Gong L, Wu GJ, Dai T. Cisplatin-induced non-apoptotic death of pancreatic cancer cells requires mitochondrial cyclophilin-D-p53 signaling. Biochem Biophys Res Commun 2013; 437:526-31. [PMID: 23845906 DOI: 10.1016/j.bbrc.2013.06.103] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Accepted: 06/27/2013] [Indexed: 01/16/2023]
Abstract
The pancreatic cancer remains a fatal disease for the majority of patients. Cisplatin has displayed significant cytotoxic effects against the pancreatic cancer cells, however the underlying mechanisms remain inconclusive. Here, we found that cisplatin mainly induced non-apoptotic death of the pancreatic cancer cells (AsPC-1 and Capan-2), which was associated with a significant p53 activation (phosphorylation and accumulation). Further, activated p53 was found to translocate to mitochondria where it formed a complex with cyclophilin D (Cyp-D). We provided evidences to support that mitochondrial Cyp-D/p53 complexation might be critical for cisplatin-induced non-apoptotic death of pancreatic cancer cells. Inhibition of Cyp-D by its inhibitor cyclosporine A (CsA), or by shRNA-mediated knockdown suppressed cisplatin-induced pancreatic cancer cell death. Both CsA and Cyp-D knockdown also disrupted the Cyp-D/p53 complex formation in mitochondria. Meanwhile, the pancreatic cancer cells with p53 knockdown were resistant to cisplatin. On the other hand, HEK-293 over-expressing Cyp-D were hyper-sensitive to cisplatin. Interestingly, camptothecin (CMT)-induced pancreatic cancer cell apoptotic death was not affected CsA or Cyp-D knockdown. Together, these data suggested that cisplatin-induced non-apoptotic death requires mitochondria Cyp-D-p53 signaling in pancreatic cancer cells.
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Affiliation(s)
- Bo Chen
- Department of Gastroenterology, East Hospital Affiliated to Tongji University in Shanghai, China
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Wu GJ, Yuan F, Du MH, Han HT, Lu LQ, Yan L, Zhang WX, Wang XP, Sun P, Li ZD. Early embryonic blood cells collect antigens and induce immunotolerance in the hatched chicken. Poult Sci 2010; 89:457-63. [PMID: 20181860 DOI: 10.3382/ps.2009-00437] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Earlier experimental data in our laboratory showed that introduction of an exogenous protein into early chicken embryonic blood leads to immunotolerance of hatched chicken to that protein. However, the underlying mechanism is yet unknown. In the present study, we show that the blood cells collecting circulating antigen might contribute to the establishment of immunotolerance. In this experiment, most of the chicken embryo blood cells took up injected fluorescein isothiocyanate-BSA at approximately embryonic d 3. At the same stage, 1 microL of embryo blood was taken out and incubated with BSA. After being loaded with BSA in vitro and washed, these cells were injected back into the original embryo. The BSA-specific lymphocytes were depleted in chickens whose early embryo cells had been loaded with BSA, as evidenced by a significant decrease in anti-BSA antibody after challenge with BSA when the chickens were 3 wk old. In addition, by direct injection of BSA to embryonic d 3 embryo blood, the hatched chickens had decreased amounts of anti-trinitrophenol antibody after the chickens were challenged with trinitrophenol-BSA, indicating that the helper function of BSA-specific T cells was impaired. In conclusion, these observations suggest that some early embryo blood cells possibly collect and store antigen for the establishment of self-tolerance before the maturation of B and T cells.
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Affiliation(s)
- G J Wu
- Department of Biochemistry and Molecular Biology, College of Biology Science, and State Key Laboratory for Agrobiotechnology, China Agricultural University, 100193 Beijing, China
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Wang D, Chen JH, Wu WZ, Yang SL, Wu GJ, Wang H, Tan JM. One Year Results of Preoperative Single Bolus ATG-Fresenius Induction Therapy in Sensitized Renal Transplant Recipients. Transplant Proc 2007; 39:69-72. [PMID: 17275476 DOI: 10.1016/j.transproceed.2006.10.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2006] [Indexed: 11/16/2022]
Abstract
UNLABELLED Sensitization in kidney transplantation is associated with more acute rejections, inferior graft survival, and an increase in delayed graft function. This study was designed to evaluate the efficacy and safety of preoperative single bolus antithymocyte globulin (ATG) induction therapy in sensitized renal transplant recipients. METHODS Fifty-six cadaveric donor kidney transplant recipients were divided into two groups: Group I (nonsensitized group, n = 30) and group II (sensitized group, PRA>10%, n = 26). ATG was given as a single preoperative bolus induction therapy to group II (ATG IV; 9 mg/kg). The group I patients were treated with mycophenolate mofetil preoperatively as induction therapy. The basic immunosuppressive regimen included tacrolimus (FK-506) or cyclosporine, mycophenolate mofetil, and prednisolone. After hospital discharge, patients were followed on a routine outpatient basis for 12 months. RESULTS Acute rejection episodes (ARE) occurred in 20% (6/30) of group I and 15.38% (4/26) of group II patients (P = NS). Infections occurred in eight patients (26.7%) as 11 episodes (36.7%), averaging 1.4 episodes per infected patient in group 1, and 6 patients (23.1%) for a total of 10 episodes (38.5%), averaging 1.7 episodes per infected patient, in group II (P = NS). Occurrence of side effects and hospital stay were almost comparable in the two groups. No delayed graft function was observed in either group. The 12-month actuarial patient and graft survival were 100% in Group I and II. CONCLUSION A preoperative single bolus ATG induction therapy was an effective and safe therapeutic measure, yielding an acceptable acute rejection rate in presensitized renal transplant recipients.
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Affiliation(s)
- D Wang
- Organ Transplant Institute, Fuzhou General Hospital, Fuzhou, PR China
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Xiang SR, Yao TD, An LZ, Xu BQ, Li Z, Wu GJ, Wang YQ, Ma S, Chen XR. Bacterial diversity in Malan ice core from the Tibetan Plateau. Folia Microbiol (Praha) 2004; 49:269-75. [PMID: 15259767 DOI: 10.1007/bf02931042] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Three ice core samples were collected from the Malan ice core drilled from the Tibetan Plateau, and three 16S rDNA clone libraries by direct amplification from the ice-melted water were established. Ninety-four clones containing bacterial 16S rDNA inserts were selected. According to restriction fragment-length polymorphism analysis, 11 clones were unique in the library from which they were obtained and used for partial sequence and phylogenetic analysis, and compared with 8 reported sequences from the same ice core at depth 70 m. Differences among the samples were apparent in clone libraries. The phylotypes were dominated by the Proteobacteria group, Acinetobacter sp. and Cytophaga-Flavobacterium-Bacteroides (CFB) group. They accounted for 92.5% (Proteobacteria), 100% (Acinetobacter sp.), 34.4% (CFB) and 100% (beta-Proteobacteria) in the clone libraries from the samples at ice depths 35, 64, 70, and 82 m, respectively. The Acinetobacter sp. was only found in the deposition at ice depth 82 m and closely clustered with gamma-Proteobateria. Two members (Malan A-21 and 101) of alpha-Proteobacteria from the sample of 35 m and two (Malan B-26 and 48) of beta-Proteobacteria of 64 m were loosely clustered (< 95% similarity) with known bacteria, represented new genera in ice bacteria.
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Affiliation(s)
- S R Xiang
- Laboratory of Ice Core and Cold Regions Environment, Cold and Arid Regions Environmental Engineering Research Institute, Chinese Academy of Science, Lanzhou, Gansu 730 000, China.
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Wu GJ, Wu MW, Wang SW, Liu Z, Qu P, Peng Q, Yang H, Varma VA, Sun QC, Petros JA, Lim SD, Amin MB. Isolation and characterization of the major form of human MUC18 cDNA gene and correlation of MUC18 over-expression in prostate cancer cell lines and tissues with malignant progression. Gene 2001; 279:17-31. [PMID: 11722842 DOI: 10.1016/s0378-1119(01)00736-3] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Ectopical expression of huMUC18, a cell adhesion molecule in the immunoglobulin gene superfamily, causes a non-metastatic human melanoma cell line to become metastatic in a nude mouse system. To determine if MUC18 expression correlates with the development and malignant progression of prostate cancer, we investigated differential expression of human MUC18 (huMUC18) in normal prostate epithelial cells, prostate cancer cell lines, and prostatic normal and cancer tissues. We cloned and characterized the human MUC18 (huMUC18) cDNA gene from three human prostate cancer cell lines and three human melanoma cell lines. The cDNA sequences from the six human cancer cell lines were identical except differences in one to five nucleotides. The deduced amino acid sequences of the longest ORF were 646 amino acids that were identical in these cDNAs except for one to three amino acid residues. The amino acid sequences of all our huMUC18 cDNA genes are similar to that cloned by other group (GenBank access #M28882) except differences in the same seven amino acids. We conclude that huMUC18 cDNA gene reported here represents the gene product from a major allele. The MUC18 mRNA and protein was expressed in three metastatic prostate cancer cell lines (TSU-PR1, DU145, and PC-3), but not in one non-metastatic prostate cancer cell line (LNCaP.FGC). The expression of huMUC18 in these four cell lines is positively related to their extent of in vitro motility and invasiveness and in vivo metastasis in nude mice. HuMUC18 protein was also expressed at high levels in extracts prepared from tissue sample sections containing high grade prostatic intraepithelial neoplasia (PIN), but weakly expressed in extracts prepared from cultured primary normal prostatic epithelial cells and the normal prostate gland. Immunohistochemical analysis showed that huMUC18 was expressed at higher levels in the epithelial cells of high-grade PIN and prostatic carcinomas, and in cells of a perineural invasion, a lymph node, and a lung metastases compared to that in normal or benign hyperplastic epithelium (BPH). We therefore conclude that MUC18 expression is increased during prostate cancer initiation (high grade PIN) and progression to carcinoma, and in metastatic cell lines and metastatic carcinoma. Increased expression of MUC18 is implicated to play an important role in developing and malignant progression of human prostate cancer. Furthermore, the lacking of predominant cytoplasmic membrane expression of MUC18 appeared to correlate with malignant progression of prostate cancer.
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MESH Headings
- Amino Acid Sequence
- Antigens, CD
- Antigens, Surface/genetics
- Antigens, Surface/metabolism
- Base Sequence
- CD146 Antigen
- Cell Membrane/metabolism
- Cell Movement
- Cytoplasm/metabolism
- DNA, Complementary/chemistry
- DNA, Complementary/genetics
- DNA, Complementary/isolation & purification
- Disease Progression
- Gene Expression Regulation, Neoplastic
- Humans
- Immunohistochemistry
- Male
- Melanoma/genetics
- Melanoma/pathology
- Membrane Glycoproteins
- Molecular Sequence Data
- Neoplasm Invasiveness
- Neural Cell Adhesion Molecules
- Prostate/chemistry
- Prostate/cytology
- Prostate/metabolism
- Prostatic Neoplasms/genetics
- Prostatic Neoplasms/pathology
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Sequence Alignment
- Sequence Analysis, DNA
- Sequence Homology, Amino Acid
- Tumor Cells, Cultured
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Affiliation(s)
- G J Wu
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA 30322, USA.
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Wu GJ, Chen LY, Dai G. [Influence of human cytomegalovirus infection on the expression of HOXB5, HOXB6, HOXB7, and HOXB8 genes in gliomaous cells]. Hunan Yi Ke Da Xue Xue Bao 2001; 26:409-11. [PMID: 12536483] [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 The expressions of HOXB5, HOXB6, HOXB7, and HOXB8 genes of U251 cell infected by human cytomegalovirus and/or treated with all trans-retinoic acid(ATRA) were detected by semi-quantitative RT-PCR. The results were that U251 cell did not express HOXB5, HOXB6, and HOXB8 but expressed HOXB7 without infecting HCMV and/or being treated with ATRA. After infected with HCMV and/or treated with ATRA, the expressions of HOXB7 and HOXB8 were up-regulated and the expression of HOXB7 lasted the fourth generation, while HOXB8 was up-regulated only in the second generation. These results indicate that the abnormal expression of HOXB gene induced by HCMV may play an important role in the maldevelopment.
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Affiliation(s)
- G J Wu
- Department of Microbiology, Xiangya School of Medicine, Central South University, Changsha 410078, China
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Affiliation(s)
- D C Chen
- Department of Obstetrics and Gynecology, Tri-Service General Hospital, National Defense Medical Center, 325 Section 2, Cheng-Kung Road, Neihu, 114, Taipei, Taiwan
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Wu GJ, Varma VA, Wu MW, Wang SW, Qu P, Yang H, Petros JA, Lim SD, Amin MB. Expression of a human cell adhesion molecule, MUC18, in prostate cancer cell lines and tissues. Prostate 2001; 48:305-15. [PMID: 11536311 DOI: 10.1002/pros.1111] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Over expression of huMUC18, a cell adhesion molecule in the immunoglobulin gene superfamily, causes a non-metastatic human melanoma cell line to become metastatic in a nude mouse system. To determine if MUC18 expression correlates with the malignant progression of prostate cancer, we investigated differential expression of human MUC18 (huMUC18) in normal prostate epithelial cells, prostate cancer cell lines, and prostatic normal and cancer tissues. METHODS RT-PCR and Western blot analyses were used to analyze the expression of MUC18 mRNA and protein in four human prostate cancer cell lines, cultured primary normal prostate epithelial cells, normal prostate and malignant prostate tissues. Immunohistochemistry was used to determine the expression of MUC18 antigen in prostatic tissues at different stages of malignancy. RESULTS Human MUC18 mRNA and protein was expressed in three different prostate cancer cell lines (TSU-PR1, DU145, and PC-3), but not in one prostate cancer cell line (LNCaP.FGC). HuMUC18 protein was also expressed at high levels in extracts prepared from tissue sample sections containing high grade prostatic intraepithelial neoplasia (PIN), but weakly expressed in extracts prepared from either cultured primary normal prostatic epithelial cells or the normal prostate gland. Immunohistochemical analysis showed that huMUC18 was expressed at higher levels in the epithelial cells of high-grade PIN and prostatic carcinomas and in cells of a lymph node metastasis compared to that in normal or benign hyperplastic epithelium (BPH). CONCLUSIONS We therefore conclude that MUC18 is expressed at higher levels in pre-malignant and malignant prostatic epithelium, including metastasis. We suggest that over-expression of MUC18 may be a new marker of human prostate cancer and also implicates its possible role in development and progression of prostate cancer.
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MESH Headings
- Antigens, CD
- Antigens, Surface/biosynthesis
- Antigens, Surface/genetics
- Blotting, Northern
- Blotting, Western
- CD146 Antigen
- Cell Adhesion Molecules/biosynthesis
- Cell Adhesion Molecules/genetics
- DNA, Complementary/genetics
- Epithelial Cells/metabolism
- Gene Expression Regulation, Neoplastic
- Humans
- Immunohistochemistry
- Male
- Membrane Glycoproteins
- Neural Cell Adhesion Molecules
- Precancerous Conditions/metabolism
- Prostate/metabolism
- Prostatic Neoplasms/genetics
- Prostatic Neoplasms/metabolism
- Prostatic Neoplasms/pathology
- RNA, Messenger/biosynthesis
- RNA, Messenger/genetics
- Reverse Transcriptase Polymerase Chain Reaction
- Tumor Cells, Cultured
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Affiliation(s)
- G J Wu
- Department of Microbiology & Immunology, Emory University School of Medicine, Atlanta, Georgia 30322, USA.
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Chang HC, Tsai SY, Wu GJ, Lin YH, Chen RM, Chen TL. Effects of propofol on mitochondrial function and intracellular calcium shift in bovine aortic endothelial model. Acta Anaesthesiol Sin 2001; 39:115-22. [PMID: 11688101] [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: 02/22/2023]
Abstract
BACKGROUND Hypotension was commonly encountered in clinical practice during induction of anesthesia with propofol. The purpose of this study is to investigate the effect of propofol on mitochondrial membrane potential and morphology so as to infer its relation with intracellular calcium mobilization in bovine aortic endothelium. METHODS In this study, we used the cultured bovine aortic endothelial cells (Gm 7372a) to elucidate the impact of propofol upon the membrane potential and morphology of mitochondria in correlation with its effect on intracellular calcium shift. The intracellular calcium mobilization within the cells preincubated with or without propofol was evaluated using a fluorescent spectrophotometer (confocal microscope) after being treated with Fluo-3. The mobilization of intracellular calcium was demonstrated by the appearance of "hot spots" released from intracellular stores after the addition of an ionophore, ionomycin, to the incubation system. The membrane potential of mitochondria was measured by DiOC6 and the morphology of the mitochondria was evaluated by the treatment of TM Ros and compared with that by the treatment of the uncoupler, FCCP, as control. RESULTS The release of calcium "hot spots" from the intracellular stores (e.g. mitochondria) after the addition of ionomycin was visualized to decrease dramatically within the endothelial cells after preincubation with propofol. The membrane potential of mitochondria was significantly inhibited by pretreatment of propofol at 0.01 mM, 37 degrees C for 30 min. Morphologically, the integrity of mitochondria was distorted and fragmented in the presence of propofol as compared with that of control. CONCLUSIONS Our data showed that propofol in clinical concentration, 0.01 mM, could inhibit intracellular calcium shift from the intracellular stores and decrease the membrane potential and distort the morphology of mitochondria in bovine aortic endothelial cells. These inhibitions of the function and disfiguration of the morphology of mitochondria signify that the clinical hypotension induced by propofol might be of a potential mechanism.
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Affiliation(s)
- H C Chang
- Department of Anesthesiology, Taipei Medical University, Wan-Fang Hospital, No. 111, Sec. 3, Hsing-Lung Rd., Taipei, 116, Taiwan, R.O.C
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33
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Chen LY, Jiang HM, Wu GJ. [Listeria monocytogenes induces thymocyte apoptosis in mice]. Hunan Yi Ke Da Xue Xue Bao 2001; 26:305-8. [PMID: 12536719] [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
The murine thymocyte apoptosis induced by Listeria monocytogenes(LM) was detected with morphology, FCM, and DNA electrophoresis. The results were that LM elicited typical morphological changes of thymocyte apoptosis; the typical apoptosis peak was displayed with FCM, and typical "ladder pattern" with agarose gel electrophoresis. The apoptotic cells were found at 8 h after the mice had infected LM and reached climax at 48 h. The thymus weight significantly reduced at 16 h, and reached the lowest at 48 h after the mice had infected LM. The percentage of apoptotic cells was raised with the increasing of LM. These results suggest that LM induces thymocyte apoptosis in dose- and time-dependent manner.
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Affiliation(s)
- L Y Chen
- Department of Microbiology, Xiangya School of Medicine, Central South University, Changsha 410078
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Wu ZY, Wu GJ, Zhao BM, Li JX. [The analgesic and antispasmodic effects of guang tong xiao aerosol of TCM]. Zhongguo Zhong Yao Za Zhi 2001; 26:559-61. [PMID: 12776373] [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: 03/02/2023]
Abstract
OBJECTIVE To observe the analgesic and antispasmodic effects of Guang Tong Xiao Aerosol (GTXA). METHOD Writhing test and tail-flick of physical stimulation were made to study the analgesic effect on mice and rats. RESULT AND CONCLUSION GTXA given by gastrogavage in dose of 18.75 g.kg-1 or 12.50 g.kg-1 could markedly raise the pain threshold after chemical stimulation in mice and physical stimulation in rats, and had antispasmodic effects.
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Affiliation(s)
- Z Y Wu
- Department of Immunology, Guang An Men Hospital, China Academy of TCM, Beijing 100053, China
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35
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Chen LY, Wu GJ, Dai G. [Influence of human cytomegalovirus infection on the expressions of HOXB1, HOXB5, HOXB6, and HOXB9 genes in human embryo lung cells]. Hunan Yi Ke Da Xue Xue Bao 2001; 26:189-91. [PMID: 12536675] [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 study the expressions of HOXB1, HOXB5, HOXB6, and HOXB9 genes in human embryo lung (HEL) cells and influence of human cytomegalovirus (HCMV) infection on the expressions of these genes. METHOD The expressions of HOXB1, HOXB5, HOXB6, and HOXB9 genes were detected with semi-quantitative RT-PCR method. RESULTS 1. HEL cells expressed HOXB5 and HOXB6 genes, but they did not express HOXB1 and HOXB9 genes. 2. After HCMV infection, HEL cell was induced to express HOXB9 gene, as the expression of HOXB6 gene was elevated. The expression of HOXB5 gene had no significant change. HOXB1 was still not expressed. 3. Treated with all-trans retinoic acid (ATRA), the expression of HOXB9 gene in HEL cells infected by HCMV was significantly increased. But during the advanced infect period, the expression of HOXB6 was significantly decreased. CONCLUSION HCMV can induce abnormal expressions of HOXB6 and HOXB9 genes, which may play an important role in HCMV-induced abnormal embryogenesis.
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Affiliation(s)
- L Y Chen
- Department of Microbiology, Xiangya School of Medicine, Central South University, Changsha 410078, China
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36
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Wu GJ, Chen SZ, Chen LY. [Study on molecular epidemiology of HCMV infection in mothers and their newborns in Changsha]. Hunan Yi Ke Da Xue Xue Bao 2001; 26:23-5. [PMID: 12536607] [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
The detection of HCMV-IgG, IgM in plasma by ELISA and DNA in plasma and P(C) BMCs from mothers and their newborns by PCR was carried out. Positive HCMV-IgG, HCMV-IgM, P(C)BMCs HCMV DNA and plasma HCMV DNA were demonstrated in 119(95.2%), 7(5.6%), 27(21.6%) and 14(11.2%) in 125 mothers and 117(93.6%), 1(0.8%), 18(14.4%) and 7(5.6%) in their mewborns, respectively. There were significant differences among the positive rate of newborn's HCMV-IgM, plasma HCMV DNA and CBMCs HCMV DNA (P < 0.05), but the difference between HCMV-IgM and plasma HCMV DNA had no statistic significance (P > 0.05). This study suggests that HCMV-IgG and CBMCs HCMV PCR are preferable epidemiological index of HCMV infection of pregnant women and newborns respectively.
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Affiliation(s)
- G J Wu
- Department of Microbiology, Xiangya Medecal College, Central South University, Changsha 410078
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37
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Tai YT, Wu CC, Wu GJ, Chang HC, Chen TG, Chen RM, Chen TL. Study of propofol in bovine aortic endothelium: I. Inhibitory effect on bradykinin-induced intracellular calcium immobilization. Acta Anaesthesiol Sin 2000; 38:181-6. [PMID: 11392065] [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: 04/16/2023]
Abstract
BACKGROUND Propofol has been found to affect the intracellular calcium concentration with clinical manifestations of hypotension and bradycardia. The purpose of this study is to examine the effect of propofol on intracellular calcium immobilization in bovine aortic endothelium under the stimulation of bradykinin. METHODS In order to validate the effect of propofol on the alteration of intracellular calcium concentration, we used the cultured bovine endothelial cells (Gm 7372a) to measure the calcium immobilization within the cells preincubated with or without propofol of clinical concentration. Using Fluo-3 staining and a fluorescence spectrophotometer (confocal microscope), intracellular calcium immobilization was demonstrated by the appearance of "hot spots" within the cytoplasm and perinuclear regions after addition of bradykinin to the cells. The changes of fluorescence density measured within these areas versus the effect of time were analyzed and compared with the cells in control group. RESULTS After addition of bradykinin, intracellular calcium hot spots increased dramatically within seconds and reached a maximal level within 20 seconds. The concentrations of calcium gradually decreased to a constant level after about 3 min following the addition of bradykinin to the cells. With pretreatment of propofol at 0.01 mM and 37 degrees C for 30 min, the immobilization of intracellular calcium from the intracellular stores were significantly inhibited that was demonstrated by the decreased appearance of hot spots when compared with control. CONCLUSIONS Our data demonstrated that under the stimulation of bradykinin, propofol at 0.01 mM, could inhibit intracellular calcium release from the intracellular stores in bovine aortic endothelial cells. This phenomenon might explain the possible mechanism for the clinical manifestations of hypotension and/or bradycardia associated with propofol.
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Affiliation(s)
- Y T Tai
- Department of Anesthesiology, Taipei Medical College Hospital and Wan-Fang Hospital, Taipei, Taiwan
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38
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Ding DC, Liou SM, Huang LY, Liu JY, Wu GJ. Effects of four methods of sperm preparation on motion characteristics and nitric oxide concentration in laboratory-prepared oligospermia. Zhonghua Yi Xue Za Zhi (Taipei) 2000; 63:822-7. [PMID: 11155759] [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: 02/18/2023]
Abstract
BACKGROUND To compare four different spermatozoa preparation methods in semen samples with respect to recovery rate, percent motility, path and progressive velocity, and nitric oxide (NO) production before and after centrifugation. METHODS Each of 36 semen specimens was diluted to 1 x 10(6)/ml and divided into four 1-ml aliquots for sperm processing using four methods: swim-up, two (Percoll II) and three (Percoll III) layer Percoll (Pharmacia Biotech AB, Uppsala, Sweden) gradients and albumin columns. The motile sperm recovery rate, percent motility and motion parameters were measured for each semen specimen (n = 36) before and after processing using the four methods. NO was measured with the use of a chemiluminescence method before and after centrifugation (n = 17). RESULTS The sperm recovery rate was higher using both Percoll gradients than with the other two methods (Percoll II, 68 +/- 20.5%, Percoll III, 75.3 +/- 22.2% vs swim-up, 25.8 +/- 9.9% and albumin, 33.1 +/- 20.7%). The results were similar for total motile cells (Percoll II, 3.55 +/- 1.72 x 10(6)/ml, Percoll III, 4.25 +/- 1.29 x 10(6)/ml vs swim-up, 1.19 +/- 0.71 x 10(6)/ml and albumin, 1.89 +/- 1.36 x 10(6)/ml). Both Percoll methods and the albumin method produced a statistically significant improvement over the swim-up method in motility. The albumin column method resulted in the least path and progressive velocities (51.3 +/- 15.4 microns/s and 46.2 +/- 16.5 microns/s, respectively). NO produced during sperm processing did not differ significantly among the four processing methods (swim-up, 4,531 +/- 1,626 nM, Percoll II, 5,119 +/- 3,969 nM, Percoll III, 6,060 +/- 5,512 nM, albumin 4,838 +/- 2,462 nM). CONCLUSIONS Our data suggest that Percoll methods are superior to swim-up and albumin columns for sperm preparation, yielding good sperm recovery, motility and motion characteristics. The trend toward lower NO levels among samples prepared using albumin columns did not reach statistical significance.
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Affiliation(s)
- D C Ding
- Division of Reproductive Endocrinology, Department of Obstetrics and Gynecology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
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Shih CC, Lin SJ, Chen YL, Su YY, Lai ST, Wu GJ, Kwok CF, Chung KH. The cytotoxicity of corrosion products of nitinol stent wire on cultured smooth muscle cells. J Biomed Mater Res 2000; 52:395-403. [PMID: 10951381 DOI: 10.1002/1097-4636(200011)52:2<395::aid-jbm21>3.0.co;2-b] [Citation(s) in RCA: 148] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Although nitinol is one of most popular materials of intravascular stents, there are still few confirmative biocompatibility data available, especially in vascular smooth muscle cells. In this report, the nitinol wires were corroded in Dulbecco's modified Eagle's medium with constant electrochemical breakdown voltage and the supernatant and precipitates of corrosion products were prepared as culture media. The dose and time effects of different concentrations of corrosion products on the growth and morphology of smooth muscle cells were evaluated with [(3)H]-thymidine uptake ratio and cell cycle sorter. Both the supernatant and precipitate of the corrosive products of nitinol wire were toxic to the primary cultured rat aortic smooth muscle cells. The growth inhibition was correlated well with the increased concentrations of the corrosion products. Although small stimulation was found with released nickel concentration of 0.95 +/- 0.23 ppm, the growth inhibition became significant when the nickel concentration was above 9 ppm. The corrosion products also altered cell morphology, induced cell necrosis, and decreased cell numbers. The cell replication was inhibited at the G0-G1 to S transition phase. This was the first study to demonstrate the cytotoxicity of corrosion products of current nitinol stent wire on smooth muscle cells, which might affect the postimplantation neointimal hyperplasia and the patency rate of cardiovascular stents.
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Affiliation(s)
- C C Shih
- Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei 112, Taiwan
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40
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Chen LY, Dai G, Wu GJ, Wang JW, Luo MH, Chen SZ. [Influence of human cytomegalovirus infection on the expression of HOX genes in human embryo lung cells]. Hunan Yi Ke Da Xue Xue Bao 2000; 25:440-2. [PMID: 12212112] [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: 02/26/2023]
Abstract
The expressions of HOX genes in human embryo lung (HEL) cells were detected with semi-quantitative RT-PCR method. The results were that HEL cells expressed HOXB7 gene and its expression increased after human cytomegalovirus (HCMV) infection. The level of expression reached maximum at 48 h after HCMV infection. Treated with all-trans retinoic acid (ATRA), the expression of HOXB7 in HEL cells infected by HCMV was significantly increased. The results suggest that the abnormal expression of HOX genes induced by HCMV might possibly play a role in virus-induced abnormal embryogenesis.
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Affiliation(s)
- L Y Chen
- Department of Microbiology, Hunan Medical University, Changsha 410078
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Wu GJ, Sinclair CS, Paape J, Ingle JN, Roche PC, James CD, Couch FJ. 17q23 amplifications in breast cancer involve the PAT1, RAD51C, PS6K, and SIGma1B genes. Cancer Res 2000; 60:5371-5. [PMID: 11034073] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Amplification of the 17q23 region occurs frequently in breast tumors. To characterize the structure of 17q23 amplicons and to identify oncogene targets associated with this alteration, we performed a copy number analysis of 87 17q23 localized expressed sequence tags in seven breast cancer cell lines. Three major regions of amplification were detected in the MCF7 and BT474 cell lines. Amplification of at least one of four known genes (PAT1, PS6K, RAD51C, and SIGMA1B) was detected in the cell lines and in 28% of 94 breast tumors. In most cases, these four genes were overexpressed when amplified, but there was a particularly good association between amplification of the SIGMA1B gene and elevated expression in tumors, which suggested a possible role for this gene in tumor progression. Our data show that this region contains at least four independent targets of amplification, which suggests that there is considerable variability in the structure of the 17q23 amplicon.
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Affiliation(s)
- G J Wu
- Department of Laboratory Medicine and Pathology, Mayo Clinic and Foundation, Rochester, Minnesota 55905, USA
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Xia ZD, Zheng Q, Chen SZ, Shu MX, Wu GJ. [Investigation of the effects of biotic field of plant seedling on human body]. Hunan Yi Ke Da Xue Xue Bao 2000; 25:151-3. [PMID: 12212205] [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: 02/26/2023]
Abstract
In this paper we investigated the effects on human bodies after being placed in the Jiang's guideti cabin with biotic field to receive the plant seedlings' irradiating biological electromagnetic waves. The results found that the erythrocyte membrane permeability and fragidity were decreased, its tenacity increased, the secretion of thyroid and sexual hormones increased, the immune function enhanced and there was no significant alteration of the adrenal cortical hormone secretion. It is suggested that the electromagnetic wave from the plant seedlings is beneficial to the erythrocyte function, improves the metabolism, enhances the adolescent activities, improves sexual activity and enhances immune function, thus it is effective to health care and rejuvenation.
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Affiliation(s)
- Z D Xia
- Department of Microbiology, Hunan Medical University, Changsha 410078
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43
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Perng MD, Muchowski PJ, van Den IJssel P, Wu GJ, Hutcheson AM, Clark JI, Quinlan RA. The cardiomyopathy and lens cataract mutation in alphaB-crystallin alters its protein structure, chaperone activity, and interaction with intermediate filaments in vitro. J Biol Chem 1999; 274:33235-43. [PMID: 10559197 DOI: 10.1074/jbc.274.47.33235] [Citation(s) in RCA: 161] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Desmin-related myopathy and cataract are both caused by the R120G mutation in alphaB-crystallin. Desmin-related myopathy is one of several diseases characterized by the coaggregation of intermediate filaments with alphaB-crystallin, and it identifies intermediate filaments as important physiological substrates for alphaB-crystallin. Using recombinant human alphaB-crystallin, the effects of the disease-causing mutation R120G upon the structure and the chaperone activities of alphaB-crystallin are reported. The secondary, tertiary, and quaternary structural features of alphaB-crystallin are all altered by the mutation as deduced by near- and far-UV circular dichroism spectroscopy, size exclusion chromatography, and chymotryptic digestion assays. The R120G alphaB-crystallin is also less stable than wild type alphaB-crystallin to heat-induced denaturation. These structural changes coincide with a significant reduction in the in vitro chaperone activity of the mutant alphaB-crystallin protein, as assessed by temperature-induced protein aggregation assays. The mutation also significantly altered the interaction of alphaB-crystallin with intermediate filaments. It abolished the ability of alphaB-crystallin to prevent those filament-filament interactions required to induce gel formation while increasing alphaB-crystallin binding to assembled intermediate filaments. These activities are closely correlated to the observed disease pathologies characterized by filament aggregation accompanied by alphaB-crystallin binding. These studies provide important insight into the mechanism of alphaB-crystallin-induced aggregation of intermediate filaments that causes disease.
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Affiliation(s)
- M D Perng
- Department of Biochemistry, Medical Science Institute, The University, Dundee DD1 5EH, United Kingdom
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Zhu JL, Pao CI, Hunter E, Lin KW, Wu GJ, Phillips LS. Identification of core sequences involved in metabolism-dependent nuclear protein binding to the rat insulin-like growth factor I gene. Endocrinology 1999; 140:4761-71. [PMID: 10499536 DOI: 10.1210/endo.140.10.7098] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
In the liver, most insulin-like growth factor I (IGF-I) transcripts originate in exon 1, where important cis-regulatory regions are located downstream from the major transcription initiation sites. Within these regions, we have attempted to identify sequences which are involved in the decrease in IGF-I gene transcription associated with diabetes mellitus. The function of different genomic templates was assessed by in vitro transcription, which revealed a consistent 50-80% decrease in the activity of nuclear extracts from streptozotocin-diabetic as compared with normal rats. The disparity in transcriptional activity between normal and diabetic nuclear extracts was reduced with templates containing 11-bp mutations within DNase I protected regions III or V (+42 and +129 bp, respectively, from the major transcription initiation site), but a mutation between regions IV and V had little effect. Within region III, gel mobility shift analysis and methylation interference studies indicated that DNA-protein interactions involve a GCGC core sequence. In region V, gel mobility shift studies and uracil interference analysis revealed interactions involving a TTAT core. While gel mobility shift analysis and transient transfection studies indicate that the GCGC core sequence in region III recognizes C/EBP, the AT-rich sequence in region V is likely to recognize a protein with homeodomain characteristics. Identification of the nuclear factor(s) interacting with regions III and V, downstream from exon 1 initiation sites, will be important for understanding the mechanism of reduced IGF-I gene transcription due to diabetes mellitus.
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Affiliation(s)
- J L Zhu
- Department of Medicine, Emory University School of Medicine, Atlanta, Georgia 30322, USA
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Muchowski PJ, Wu GJ, Liang JJ, Adman ET, Clark JI. Site-directed mutations within the core "alpha-crystallin" domain of the small heat-shock protein, human alphaB-crystallin, decrease molecular chaperone functions. J Mol Biol 1999; 289:397-411. [PMID: 10366513 DOI: 10.1006/jmbi.1999.2759] [Citation(s) in RCA: 71] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Site-directed mutagenesis was used to evaluate the effects on structure and function of selected substitutions within and N-terminal to the core "alpha-crystallin" domain of the small heat-shock protein (sHsp) and molecular chaperone, human alphaB-crystallin. Five alphaB-crystallin mutants containing single amino acid substitutions within the core alpha-crystallin domain displayed a modest decrease in chaperone activity in aggregation assays in vitro and in protecting cell viability of E. coli at 50 degrees C in vivo. In contrast, seven alphaB-crystallin mutants containing substitutions N-terminal to the core alpha-crystallin domain generally resembled wild-type alphaB-crystallin in chaperone activity in vitro and in vivo. Size-exclusion chromatography, ultraviolet circular dichroism spectroscopy and limited proteolysis were used to evaluate potential structural changes in the 12 alphaB-crystallin mutants. The secondary, tertiary and quaternary structures of mutants within and N-terminal to the core alpha-crystallin domain were similar to wild-type alphaB-crystallin. SDS-PAGE patterns of chymotryptic digestion were also similar in the mutant and wild-type proteins, indicating that the mutations did not introduce structural modifications that altered the exposure of proteolytic cleavage sites in alphaB-crystallin. On the basis of the similarities between the sequences of human alphaB-crystallin and the sHsp Mj HSP16.5, the only sHsp for which there exists high resolution structural information, a three-dimensional model for alphaB-crystallin was constructed. The mutations at sites within the core alpha-crystallin domain of alphaB-crystallin identify regions that may be important for the molecular chaperone functions of sHsps.
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Affiliation(s)
- P J Muchowski
- Department of Biological Structure, University of Washington, Seattle, WA, 98195-7420, USA
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Couch FJ, Wang XY, Wu GJ, Qian J, Jenkins RB, James CD. Localization of PS6K to chromosomal region 17q23 and determination of its amplification in breast cancer. Cancer Res 1999; 59:1408-11. [PMID: 10197603] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
The application of comparative genomic hybridization to the analysis of genetic abnormalities in breast carcinoma has consistently revealed that chromosome region 17q22-24 is a frequent site of gene amplification in this type of cancer. As part of an examination of expressed sequence tags for novel amplified genes in this region, we identified PS6K amplifications in both breast tumor tissues and cell lines. PS6K was localized to 17q23 and encodes a serine-threonine kinase whose activation is thought to regulate a wide array of cellular processes involved in the mitogenic response including protein synthesis, translation of specific mRNA species, and cell cycle progression from G1 to S phase. Northern and Western analyses revealed that amplification of this gene was accompanied by corresponding increases in mRNA and protein expression, respectively. These data represent the first determination of a gene amplification within 17q22-24 in breast cancer and suggest an oncogenic activity for PS6K.
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Affiliation(s)
- F J Couch
- Department of Laboratory Medicine and Pathology, Mayo Clinic and Foundation, Rochester, Minnesota 55905, USA
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Wu GJ, Chen ZQ. [Opioid mu receptors in caudate nucleus contribute to electroacupuncture and Sm I generating inhibition on nociceptive responses of Pf neurons]. Sheng Li Xue Bao 1999; 51:49-54. [PMID: 11972175] [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: 02/24/2023]
Abstract
The present experiments aimed to investigate whether the caudate nucleus (Cd) was involved in cortical sensorimotor area I (Sm I) generating descending modulation of the parafascicular nucleus (Pf) in acupuncture analgesia (AA), and what type of opiate receptors in Cd were involved. It was found that nociceptive responses of Pf neurons could be inhibited by electroacupuncture (EA) and excitation of Sm I before lesion of Cd, but not after lesion. After microinjection of naloxone beta-FNA, the specific antagonist for opioid mu receptors, into Cd,the inhibitory effect of EA or activation of Sm I on nociceptive responses of the Pf neurons was abolished, but it was not influenced by microinjection of nor-BNI and ICI174,864, the specific antagonists for opioid kappa and delta receptors, respectively. Together with our previous findings that EA could activate cortical neurons to participate in descending modulation of activities of Pf neurons, the present results suggest that Cd is associated with Sm I generating descending inhibition on nociceptive responses of Pf neurons in AA, and it is most likely that opiates in Cd may be involved in this inhibition through mu but not kappa or delta receptors.
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Affiliation(s)
- G J Wu
- Institute of Acupuncture, China Academy of TCM, Beijing 100700
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Sun XY, Yu L, Wu GJ, Fan YX, Zheng QP, Hu PR, Zhang M, Jiang Y, Liu S, Xu YF, Zhao SY. [Isolation of novel expression sequences of C2H2 type zinc finger protein gene from human brain tissue according to the conservation of zinc finger motif]. Shi Yan Sheng Wu Xue Bao 1998; 31:377-8. [PMID: 12016960] [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: 02/25/2023]
Abstract
By low stringency PCR amplification of genomic DNA using the primers designed based on the conservation of zinc finger motif, we got 8 gradient eletrophoretic bands. After recovery of the second and third bands, the DNA fragments in them were cloned and sequenced. Compared to the GenBank database, among these 60 segments containing zinc finger motif, 23 segments were novel zinc finger genes' genomic segments. Then the human brain tissue cDNA library was screened, using these segments as probes, and 44 positive clones were obtained. Rescreening 28 of them, we got 20 rescreened clones. All of them were sequenced and sent to the GenBank DNA database for sequence analysis, the results showed that 16 were novel C2H2 type zinc finger protein cDNA segments. The cDNA segments encoding the novel C2H2 type zinc finger proteins provide the basic materials for cloning of full length cDNA of valuable novel zinc finger protein genes.
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Affiliation(s)
- X Y Sun
- State Key Laboratory of Genetic Engineering, Institute of Genetics, Fudan University, Shanghai 200433
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Shi SL, Liu MM, Yu L, Chen SJ, Zheng QP, Wu GJ, Chen Z, Zhao SY. [Assignment of a novel zinc finger gene ZNF191 to human chromosome 18Q12.1 by human/rodent somatic cell hybrid panel and fluorescent in situ hybridization]. Shi Yan Sheng Wu Xue Bao 1998; 31:21-7. [PMID: 12014109] [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: 04/18/2023]
Abstract
A novel human zinc finger gene, ZNF191, was assigned to chromosome 18 by hybridization of human/rodent hybrid cell panel to a full-length cDNA as a probe. Meanwhile, a human genomic DNA lambda/DASH library was screened using this cDNA probe and several positive clones were obtained. Fluorescence in situ hybridization (FISH) was performed by using one of these positive clones, 16-1, as a probe. Thus, the ZNF191 gene was precisely mapped in 18q12. 1. To date, some hereditary diseases and tumors have been found to be associated with this region by analysis of genetic linkage and loss of heterozygosity. Hence, it suggested that the gene ZNF191 can be taken as a candidate gene responsible for those diseases and tumors.
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Affiliation(s)
- S L Shi
- State Key Laboratory of Genetic Engineering, Institute of Genetics, Fudan University, Shanghai 200433, P. R. China
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Shimada Y, Wu GJ, Watanabe A. A protein encoded by din1, a dark-inducible and senescence-associated gene of radish, can be imported by isolated chloroplasts and has sequence similarity to sulfide dehydrogenase and other small stress proteins. Plant Cell Physiol 1998; 39:139-143. [PMID: 9559559 DOI: 10.1093/oxfordjournals.pcp.a029350] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
In an attempt to isolate cDNA clones for dark-inducible chloroplast proteins, we screened a cDNA library which was prepared from radish cotyledons by a two-step method. The source plants were grown under continuous light for 14 d and kept in darkness for 24 h. One of the selected clones, S2D12, corresponded to the din1 gene which we previously reported as a dark-inducible, senescence-associated gene [Azumi and Watanabe (1991) Plant Physiol. 95:577]. A 22 kDa polypeptide was produced from the cDNA in an in vitro expression system in the presence of [35S]methionine. This polypeptide was capable of being imported by isolated chloroplasts, processed to a smaller mature form and localized in the stromal fraction. As the amino acid sequence of the putative mature protein has no homology to any known chloroplast protein, din1 was suggested to be the first gene for a chloroplast protein which is negatively controlled by light. The putative mature protein has similarity to sulfide dehydrogenase from Wolinella succinogenes and other small stress proteins; glpE and pspE from Escherichia coli and hsp67B2 from Drosophila melanogaster.
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Affiliation(s)
- Y Shimada
- Department of Biological Sciences, Graduate School of Science, University of Tokyo, Japan
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