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Armani-Tourret M, Gao C, Hartana CA, Sun W, Carrere L, Vela L, Hochroth A, Bellefroid M, Sbrolla A, Shea K, Flynn T, Roseto I, Rassadkina Y, Lee C, Giguel F, Malhotra R, Bushman FD, Gandhi RT, Yu XG, Kuritzkes DR, Lichterfeld M. Selection of epigenetically privileged HIV-1 proviruses during treatment with panobinostat and interferon-α2a. Cell 2024; 187:1238-1254.e14. [PMID: 38367616 PMCID: PMC10903630 DOI: 10.1016/j.cell.2024.01.037] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 11/26/2023] [Accepted: 01/24/2024] [Indexed: 02/19/2024]
Abstract
CD4+ T cells with latent HIV-1 infection persist despite treatment with antiretroviral agents and represent the main barrier to a cure of HIV-1 infection. Pharmacological disruption of viral latency may expose HIV-1-infected cells to host immune activity, but the clinical efficacy of latency-reversing agents for reducing HIV-1 persistence remains to be proven. Here, we show in a randomized-controlled human clinical trial that the histone deacetylase inhibitor panobinostat, when administered in combination with pegylated interferon-α2a, induces a structural transformation of the HIV-1 reservoir cell pool, characterized by a disproportionate overrepresentation of HIV-1 proviruses integrated in ZNF genes and in chromatin regions with reduced H3K27ac marks, the molecular target sites for panobinostat. By contrast, proviruses near H3K27ac marks were actively selected against, likely due to increased susceptibility to panobinostat. These data suggest that latency-reversing treatment can increase the immunological vulnerability of HIV-1 reservoir cells and accelerate the selection of epigenetically privileged HIV-1 proviruses.
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Affiliation(s)
| | - Ce Gao
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Ciputra Adijaya Hartana
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA; Division of Infectious Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - WeiWei Sun
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Leah Carrere
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA; Division of Infectious Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Liliana Vela
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | | | | | - Amy Sbrolla
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Katrina Shea
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Theresa Flynn
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Isabelle Roseto
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA; Division of Infectious Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | | | - Carole Lee
- Department of Microbiology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Francoise Giguel
- Division of Infectious Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Rajeev Malhotra
- Division of Cardiology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Frederic D Bushman
- Department of Microbiology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Rajesh T Gandhi
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Xu G Yu
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA; Division of Infectious Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Daniel R Kuritzkes
- Division of Infectious Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Mathias Lichterfeld
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA; Division of Infectious Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
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Yang XC, Liu Y, Sun WW, Shi G, Wu Y, Xu C, Meng QW, Hao ZP, Han Q, Zhao RH. Efficacy of Chinese Herbal Medicines on Pregnancy Outcomes in Patients with Endometriosis in Long-Term Management: A Multicenter Retrospective Cohort Study. Chin J Integr Med 2023; 29:971-979. [PMID: 37118531 DOI: 10.1007/s11655-023-3736-z] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/08/2023] [Indexed: 04/30/2023]
Abstract
OBJECTIVE To analyze the factors related to pregnancy of endometriosis and whether Chinese herbal medicines (CHMs) can improve pregnancy outcomes in patients with endometriosis in long-term management. METHODS This multicenter cohort study retrospectively analyzed the clinical data of endometriosis patients with fertility needs from January 2019 to November 2019. A total of 252 patients with endometriosis from 5 level-III Grade A hospitals in Beijing were included in this study. Univariate and multivariate logistic regression analysis were performed for the relevant factors. The propensity score matching (PSM) function of SPSS software was used to match the CHMs group with the non-CHMs group. The pregnancy rate and live birth rate were analyzed. RESULTS The results of univariate analysis showed that age, disease course, presence of infertility, presence of adenomyosis, time after surgery or use of gonadotropin-releasing hormone agonist (GnRH-a), use of CHMs and follow-up time were influencing factors of pregnancy in endometriosis patients (P<0.05). The results of multivariate analysis showed that age, presence of adenomyosis, time after surgery or use of GnRH-a, use of CHMs and follow-up time were independent factors affecting pregnancy in endometriosis patients, among which, age ⩾35 years old, presence of adenomyosis and follow-up time >6 months were independent risk factors (OR=0.445, 0.348, 0.140, respectively, P<0.05), time after surgery or use of GnRH-a ⩽6 months and use of CHMs were independent protective factors (OR=3.839, 3.842, respectively, P<0.05). After PSM, 99 pairs of two groups were matched successfully. The pregnancy rate of the CHMs group was higher than that of the non-CHMs group [55.56% (55/99) vs. 36.36% (36/99), P<0.05]. The live birth rate of the CHMs group was higher than that of the non-CHMs group [49.49% (49/99) vs. 35.35% (35/99), P<0.05]. CONCLUSION CHMs can effectively improve clinical pregnancy rate and live birth rate of patients with endometriosis in the chronic disease management.
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Affiliation(s)
- Xin-Chun Yang
- Department of Gynecology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Yong Liu
- Department of Gynecology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Wei-Wei Sun
- Department of Gynecology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Guang Shi
- Department of Gynecology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Ying Wu
- Department of Traditional Chinese Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, 100026, China
| | - Cai Xu
- Department of Gynecology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, 100078, China
| | - Qing-Wei Meng
- Department of Obstetrics and Gynecology, Beijing Hospital, Beijing, 100730, China
| | - Zeng-Ping Hao
- Department of Obstetrics and Gynecology, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Qian Han
- Department of Traditional Chinese Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, 100026, China
| | - Rui-Hua Zhao
- Department of Gynecology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China.
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Wang ZJ, Sun WW, Zhang YS, Wu X, Liu RX, Liao X, Zhao RH. [Outcomes and measurements of randomized controlled trial for traditional Chinese medicine in treatment of endometriosis]. Zhongguo Zhong Yao Za Zhi 2023; 48:4521-4528. [PMID: 37802878 DOI: 10.19540/j.cnki.cjcmm.20230413.501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/08/2023]
Abstract
This study aims to analyze the outcomes and measurements of randomized controlled trial(RCT) for traditional Chinese medicine(TCM) treatment of endometriosis(EM) and provide a basis for the building of the core outcome set(COS) of EM. The RCT for TCM treatment of EM was retrieved from medical literature databases with the time interval from inception to February 3, 2022. The Cochrane risk of bias assessment tool was employed to evaluate the risk of bias of the included RCT, and descriptive analyses of the extracted information were carried out. A total of 519 RCTs were included, with the sample sizes ranging from 28-582 patients and 239 outcome indicators(8 outcome indicators per RCT on average). According to the functional properties, the reported outcome indicators were classified into 7 indicators: clinical efficacy assessment, indicators of clinical symptoms and signs, TCM symptom efficacy indicators, physical and chemical examinations, quality of life, long-term prognosis, and safety events. All the 519 RCTs had problems, such as the lack of differentiation between primary and secondary outcome indicators(1.73% RCTs reported such differen-tiation), poor quality, confused criteria for composite outcome indicators and arbitrary combination of indicators(45 criteria for the single outcome indicator of efficiency), and messy measurements(as many as 18 measurements for TCM symptom score). In addition, as a chronic disease, EM requires long-term management. The outcome indicators vary for the patients in different disease stages, such as EM pain, EM infertility, and post-operative EM, while the specific outcome indicator sets for different EM populations remain to be developed. In addition, the time point of measurement for EM long-term outcomes remains unclear, and the definition of TCM syndromes lacks standards. The RCT for TCM treatment had a variety of problems, such as the lack of differentiation of outcome indicators, confusion in criteria and measurements, lack of specific outcome indicator sets for different EM populations, and unclear time points for long-term outcomes. Therefore, the studies about COS need to be carried out urgently.
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Affiliation(s)
- Zi-Jin Wang
- Graduate School of Beijing University of Chinese Medicine Beijing 100029,China
| | - Wei-Wei Sun
- Guang'anmen Hospital,China Academy of Chinese Medical Sciences Beijing 100053,China
| | - Ying-Si Zhang
- Graduate School of Beijing University of Chinese Medicine Beijing 100029,China
| | - Xue Wu
- Institute of Basic Research in Clinical Medicine,China Academy of Chinese Medical Sciences Beijing 100700,China
| | - Rui-Xue Liu
- China Academy of Chinese Medical Sciences Beijing 100700,China
| | - Xing Liao
- Institute of Basic Research in Clinical Medicine,China Academy of Chinese Medical Sciences Beijing 100700,China
| | - Rui-Hua Zhao
- Guang'anmen Hospital,China Academy of Chinese Medical Sciences Beijing 100053,China
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Yangyao J, Chen H, Wang Y, Kan P, Yao J, Zhang D, Sun W, Yao Z. Metagenomic insights into the functional genes across transects in a typical estuarine marsh. Sci Total Environ 2023; 857:159593. [PMID: 36272486 DOI: 10.1016/j.scitotenv.2022.159593] [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: 06/28/2022] [Revised: 10/16/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
Salt marshes are potentially one of the most efficient carbon (C) sinks worldwide and perform important ecosystem functions, but sea level rise alters marsh sediments properties and thus threatens microbial roles in ecosystem functioning. Yet, the mechanisms of interactions of biochemical processes with microorganisms and their functions are still not fully understood. Here, this study investigated metagenomic taxonomic and functional profiling from the water-land conjugation up to about 300 m, 1000 m, and 2500 m in three parallel transects, respectively, in Hangzhou Bay, China. The results showed that soil physicochemical factors drove metagenomic taxonomic and functional genes in the 2500-m transect significantly different from other sites. The 2500-m transect had a greater abundance of Chloroflexi and Acidobacteria but lower in Proteobacteria. The metagenomic functional genes related to Phosphorus Metabolism (PHO) and Potassium Metabolism (POT) increased in the 2500 m. Additionally, nutrient-cycling functions and the genera of Anaeromyxobacter, Roseiflexus, and Geobacter related to PHO, POT at 2500 m were significantly greater than those of other transects. Carbon cycling functions within Carbohydrates (CHO) also differed significantly across transects. These research results demonstrated that the relative abundance of metagenomic microorganisms and their functional genes were significantly separated across the three transects. The vegetation type, salinity, and soil properties might be among the influencing factors.
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Affiliation(s)
- Jiannan Yangyao
- School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Huaihai Chen
- School of Ecology, Sun Yat-sen University, Shenzhen, 518107, China; State Key Laboratory of Biocontrol, Sun Yat-sen University, Shenzhen 518107, China
| | - Yuanfang Wang
- School of Civil and Environmental Engineering, Ningbo University, Ningbo 315211, China
| | - Peiying Kan
- School of Civil and Environmental Engineering, Ningbo University, Ningbo 315211, China; Institute of Ocean Engineering, Ningbo University, Ningbo 315211, China
| | - Jiafeng Yao
- School of Civil and Environmental Engineering, Ningbo University, Ningbo 315211, China
| | - Demin Zhang
- School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - WeiWei Sun
- School of Civil and Environmental Engineering, Ningbo University, Ningbo 315211, China; Department of Geography and Spatial Information Techniques, Ningbo University, Ningbo 315211, China
| | - Zhiyuan Yao
- School of Civil and Environmental Engineering, Ningbo University, Ningbo 315211, China; Institute of Ocean Engineering, Ningbo University, Ningbo 315211, China.
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Sun WW, Yan XM, Qiao AJ, Zhang YJ, Yang L, Huang HC, Shi HF, Yan BL. Upregulated galectin-1 in Angiostrongylus cantonensis L5 reduces body fat and increases oxidative stress tolerance. Parasit Vectors 2022; 15:46. [PMID: 35123560 PMCID: PMC8817484 DOI: 10.1186/s13071-022-05171-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 01/20/2022] [Indexed: 11/30/2022] Open
Abstract
Background Angiostrongylus cantonensis L5, parasitizing human cerebrospinal fluid, causes eosinophilic meningitis, which is attributed to tissue inflammatory responses caused primarily by the high percentage of eosinophils. Eosinophils are also involved in killing helminths, using the peroxidative oxidation and hydrogen peroxide (H2O2) generated by dismutation of superoxide produced during respiratory burst. In contrast, helminthic worms have evolved to attenuate eosinophil-mediated tissue inflammatory responses for their survival. In previous study, we demonstrated the extracellular function of Acan-Gal-1 in inducing the apoptosis of macrophages. Here, the intracellular functions of Acan-Gal-1 were investigated, aiming to further reveal the mechanism involved in A. cantonensis L5 worms surviving inflammatory responses in the human central nervous system. Methods In this study, a model organism, Caenorhabditis elegans, was used as a surrogate to investigate the intracellular functions of Acan-Gal-1 in protecting the worm from its host’s immune attacks. First, structural characterization of Acan-Gal-1 was analyzed using bioinformatics; second, qRT-PCR was used to monitor the stage specificity of Acan-gal-1 expression in A. cantonensis. Microinjections were performed to detect the tissue specificity of lec-1 expression, the homolog of Acan-gal-1 in C. elegans. Third, microinjection was performed to develop Acan-gal-1::rfp transgenic worms. Then, oxidative stress assay and Oil Red O fat staining were used to determine the functions of Acan-Gal-1 in C. elegans. Results The results of detecting the stage specificity of Acan-gal-1 expression showed that Acan-Gal-1 was upregulated in both L5 and adult worms. Detection of the tissue specificity showed that the homolog of Acan-gal-1 in C. elegans, lec-1 was expressed ubiquitously and mainly localized in cuticle. Investigating the intracellular functions of Acan-Gal-1 in the surrogate C. elegans showed that N2 worms expressing pCe-lec-1::Acan-gal-1::rfp, with lipid deposition reduced, were significantly resistant to oxidative stress; lec-1 mutant worms, where lipid deposition increased, showed susceptible to oxidative stress, and this phenotype could be rescued by expressing pCe-lec-1::Acan-gal-1::rfp. Expressing pCe-lec-1::Acan-gal-1::rfp or lec-1 RNAi in fat-6;fat-7 double-mutant worms, where fat stores were reduced, had no significant effect on the oxidative stress tolerance. Conclusion In C. elegans worms, upregulated Acan-Gal-1 plays a defensive role against damage due to oxidative stress for worm survival by reducing fat deposition. This might indicate the mechanism by which A. cantonensis L5 worms, with upregulated Acan-Gal-1, survive the immune attack of eosinophils in the human central nervous system. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13071-022-05171-4.
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Chen XY, Chen JY, Huang YX, Xu JH, Sun WW, Chen Y, Ding CY, Wang SB, Wu XY, Kang DZ, You HH, Lin YX. Establishment and Validation of an Integrated Model to Predict Postoperative Recurrence in Patients With Atypical Meningioma. Front Oncol 2021; 11:754937. [PMID: 34692542 PMCID: PMC8529147 DOI: 10.3389/fonc.2021.754937] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 08/07/2021] [Accepted: 09/15/2021] [Indexed: 12/20/2022] Open
Abstract
Background This study aims to establish an integrated model based on clinical, laboratory, radiological, and pathological factors to predict the postoperative recurrence of atypical meningioma (AM). Materials and Methods A retrospective study of 183 patients with AM was conducted. Patients were randomly divided into a training cohort (n = 128) and an external validation cohort (n = 55). Univariable and multivariable Cox regression analyses, the least absolute shrinkage and selection operator (LASSO) regression analysis, time-dependent receiver operating characteristic (ROC) curve analysis, and evaluation of clinical usage were used to select variables for the final nomogram model. Results After multivariable Cox analysis, serum fibrinogen >2.95 g/L (hazard ratio (HR), 2.43; 95% confidence interval (CI), 1.05–5.63; p = 0.039), tumor located in skull base (HR, 6.59; 95% CI, 2.46-17.68; p < 0.001), Simpson grades III–IV (HR, 2.73; 95% CI, 1.01–7.34; p = 0.047), tumor diameter >4.91 cm (HR, 7.10; 95% CI, 2.52–19.95; p < 0.001), and mitotic level ≥4/high power field (HR, 2.80; 95% CI, 1.16–6.74; p = 0.021) were independently associated with AM recurrence. Mitotic level was excluded after LASSO analysis, and it did not improve the predictive performance and clinical usage of the model. Therefore, the other four factors were integrated into the nomogram model, which showed good discrimination abilities in training cohort (C-index, 0.822; 95% CI, 0.759–0.885) and validation cohort (C-index, 0.817; 95% CI, 0.716–0.918) and good match between the predicted and observed probability of recurrence-free survival. Conclusion Our study established an integrated model to predict the postoperative recurrence of AM.
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Affiliation(s)
- Xiao-Yong Chen
- Department of Neurosurgery, Neurosurgical Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Jin-Yuan Chen
- Department of Ophthalmology, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Yin-Xing Huang
- Department of Neurosurgery, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Jia-Heng Xu
- Department of Neurosurgery, Neurosurgical Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Wei-Wei Sun
- Department of Neurosurgery, Neurosurgical Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Yue- Chen
- Department of Neurosurgery, Neurosurgical Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Chen-Yu Ding
- Department of Neurosurgery, Neurosurgical Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Precision Medicine for Cancer, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Shuo-Bin Wang
- Department of Neurosurgery, Neurosurgical Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Xi-Yue Wu
- Department of Neurosurgery, Neurosurgical Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - De-Zhi Kang
- Department of Neurosurgery, Neurosurgical Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Precision Medicine for Cancer, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China.,Key Laboratory of Radiation Biology of Fujian Higher Education Institutions, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Hong-Hai You
- Department of Neurosurgery, Neurosurgical Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Yuan-Xiang Lin
- Department of Neurosurgery, Neurosurgical Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
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Wang R, Sun WW, Han Y, Fan XX, Pan XQ, Wang SC, Lu LJ. Observation and measurement of applied anatomical features for thoracic intervertebral foramen puncture on computed tomography images. World J Clin Cases 2021; 9:4607-4616. [PMID: 34222427 PMCID: PMC8223838 DOI: 10.12998/wjcc.v9.i18.4607] [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] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 04/05/2021] [Accepted: 04/20/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Thoracic intervertebral foramen puncture is the key step for interventional therapy on the thoracic nerve roots or dorsal root ganglia. The anatomical features of the thoracic spine are complex, and puncture injury to the pleura, blood vessels, spinal cord, and other tissues may cause serious complications. The spatial anatomical characteristics and related parameters for thoracic intervertebral foramen puncture remain poorly understood.
AIM To observe and summarize the spatially applied anatomical characteristics for intervertebral foramen puncture on different vertebral segments.
METHODS A total of 88 patients (41 males and 47 females) who underwent thoracic minimally invasive interventional treatment at Nanjing Drum Tower Hospital from January 2019 to June 2020 were included. Computed tomography images of 167 thoracic vertebral segments scanned in the prone position were collected. The width of the intertransverse space (DP), the height of the rib neck/head above the lower transverse process (DR), the width of the lateral border of the articular process/lamina (WP), and the width of the posterior border of the vertebral body (WV) were measured. At the upper 1/3 of the intervertebral foramina, the horizontal inclination angle (α) from the lateral border of the articular process/lamina to the posterolateral border of the vertebral body was measured. The ratios DR/DP and WP/WV were calculated. The intervertebral foramen parameters were compared between segments.
RESULTS No rib head/neck occlusion (DR/DP > 0) was found in the intertransverse spaces of T1-2 and T12-L1. The incidence of occlusion for the upper thoracic segments (T1-5, n = 138), middle thoracic segments (T5-9, n = 116), and lower thoracic segments (T9-L1, n = 80) were 76.81%, 100%, and 82.50%, respectively. The incidence of occlusion for the middle thoracic segments was significantly higher than that for the upper and lower thoracic segments (P < 0.05). The incidence of > 1/2 occlusion (DR/DP > 1/2) for the upper, middle, and lower thoracic segments was 7.97%, 74.14%, and 32.50%, respectively. The incidence of > 1/2 occlusion for the middle thoracic segments was significantly higher than that for the upper and lower thoracic segments (P < 0.05). WP was longer than WV on T1-2 to T9-10 and shorter than WV on T10-11 to T12-L1. The horizontal puncture angle (α) into the external opening of the intervertebral foramina was positively correlated with the segments of the thoracic vertebrae from the cephalic to caudal portion (left: r = 0.772, P < 0.01; right: r = 0.771, P < 0.01), and the horizontal inclination angle for T11-12 and T12-L1 was 90°.
CONCLUSION It is necessary to identify the spatial impact of the rib head/neck on the puncture path of the intervertebral foramina and design appropriate puncture angles for different segments.
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Affiliation(s)
- Ran Wang
- Department of Pain Management, Nanjing Drum Tower Hospital, Clinical College of Xuzhou Medical University, Nanjing 210008, Jiangsu Province, China
| | - Wei-Wei Sun
- Department of Pain Management, Nanjing Drum Tower Hospital, Clinical College of Xuzhou Medical University, Nanjing 210008, Jiangsu Province, China
| | - Ying Han
- Department of Pain Management, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, China
| | - Xiao-Xue Fan
- Department of Pain Management, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, China
| | - Xue-Qin Pan
- Department of Pain Management, Nanjing Drum Tower Hospital, Clinical College of Xuzhou Medical University, Nanjing 210008, Jiangsu Province, China
| | - Shi-Chong Wang
- Department of Pain Management, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, China
| | - Li-Juan Lu
- Department of Pain Management, Nanjing Drum Tower Hospital, Clinical College of Xuzhou Medical University, Nanjing 210008, Jiangsu Province, China
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Chen M, Li MH, Zhang N, Sun WW, Wang H, Wang YA, Zhao Y, Wei W. Pro-angiogenic effect of exosomal microRNA-103a in mice with rheumatoid arthritis via the downregulation of hepatocyte nuclear factor 4 alpha and activation of the JAK/STAT3 signaling pathway. J BIOL REG HOMEOS AG 2021; 35:629-640. [PMID: 33887899 DOI: 10.23812/20-537-a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Rheumatoid arthritis (RA) is characterized by inflammation of the synovial membrane, accompanied by hyperplasia and neo-angiogenesis, which promote local inflammation. Macrophage-derived exosomes have been reported to enhance inflammation and the immune response. In the present study, we identified a novel exosomal microRNA (miR)-103a, which aids in the regulation of inflammation and angiogenesis in mice with RA, and attempted to identify the underlying mechanism. Initially, a mouse model of RA was established. Thereafter, exosomes were isolated from macrophage RAW264.7 cells and evaluated through transmission electron microscopy and nanoparticle tracking analysis. After prediction and verification of the target genes of miR-103a, RT-qPCR was used to assess miR-103a and HNF4A expression in mice with RA. High expression of miR-103a and low expression of HNF4A were observed in mice with RA, thus, miR-103a was found to target and downregulate HNF4A. Exosomal miR-103a promoted inflammation and angiogenesis in mice with RA which was accompanied by an increase in the levels of factors associated with inflammation and angiogenesis. However, an opposite trend was observed upon HNF4A elevation. Exosomal miR-103a was also found to activate the JAK/STAT3 signaling pathway. In conclusion, exosomal miR-103a inhibited the expression of HNF4A to activate the JAK/STAT3 signaling pathway, thereby exacerbating RA in mice.
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Affiliation(s)
- M Chen
- Department of Rheumatology and Immunology, Tianjin Medical University General Hospital, Tianjin, P.R. China
| | - M H Li
- Department of Rheumatology and Immunology, Tianjin Medical University General Hospital, Tianjin, P.R. China
| | - N Zhang
- Department of Rheumatology and Immunology, Tianjin Medical University General Hospital, Tianjin, P.R. China
| | - W W Sun
- Department of Rheumatology and Immunology, Tianjin Medical University General Hospital, Tianjin, P.R. China
| | - H Wang
- Department of Rheumatology and Immunology, Tianjin Medical University General Hospital, Tianjin, P.R. China
| | - Y A Wang
- Department of Rheumatology and Immunology, Tianjin Medical University General Hospital, Tianjin, P.R. China
| | - Y Zhao
- Department of Rheumatology and Immunology, Tianjin Medical University General Hospital, Tianjin, P.R. China
| | - W Wei
- Department of Rheumatology and Immunology, Tianjin Medical University General Hospital, Tianjin, P.R. China
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Sun WW, Yan XM, Shi Q, Zhang YJ, Huang JT, Huang HC, Shi HF, Yan BL. Downregulated RPS-30 in Angiostrongylus cantonensis L5 plays a defensive role against damage due to oxidative stress. Parasit Vectors 2020; 13:617. [PMID: 33298148 PMCID: PMC7724845 DOI: 10.1186/s13071-020-04495-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 08/05/2020] [Accepted: 11/19/2020] [Indexed: 01/21/2023] Open
Abstract
Background Eosinophilic meningitis, caused by fifth-stage larvae of the nematode (roundworm) Angiostrongylus cantonensis, is mainly attributed to the contribution of eosinophils to tissue inflammatory responses in helminthic infections. Eosinophils are associated with the killing of helminths via peroxidative oxidation and hydrogen peroxide generated by the dismutation of superoxide produced during respiratory bursts. In contrast, when residing in the host with high level of eosinophils, helminthic worms have evolved to attenuate eosinophil-mediated tissue inflammatory responses for their survival in the hosts. In a previous study we demonstrated that the expression of the A. cantonensis RPS 30 gene (Acan-rps-30) was significantly downregulated in A. cantonensis L5 roundworms residing in cerebrospinal fluid with a high level of eosinophils. Acan-RPS-30 is a protein homologous to the human Fau protein that plays a pro-apoptotic regulatory role and may function in protecting worms from oxidative stress. Methods The isolation and structural characterization of Acan-RPS-30 were performed using rapid amplification of cDNA ends (RACE), genome walking and bioinformatics. Quantitative real-time-PCR and microinjection were used to detect the expression patterns of Acan-rps-30. Feeding RNA interference (RNAi) was used to knockdown the apoptosis gene ced-3. Microinjection was performed to construct transgenic worms. An oxidative stress assay was used to determine the functions of Acan-RPS-30. Results Our results showed that Acan-RPS-30 consisted of 130 amino acids. It was grouped into clade V with C. elegans in the phylogenetic analysis. It was expressed ubiquitously in worms and was downregulated in both L5 larvae and adult A. cantonensis. Worms expressing pCe-rps30::Acan-rps-30::rfp, with the refractile “button-like” apoptotic corpses, were susceptible to oxidative stress. Apoptosis genes ced-3 and ced-4 were both upregulated in the transgenic worms. The phenotype susceptible to oxidative stress could be converted with a ced-3 defective mutation and RNAi. rps-30−/− mutant worms were resistant to oxidative stress, with ced-3 and ced-4 both downregulated. The oxidative stress-resistant phenotype could be rescued and inhibited by through the expression of pCe-rps30::Acan-rps-30::rfp in rps-3−/− mutant worms. Conclusion In C. elegans worms, downregulated RPS-30 plays a defensive role against damage due to oxidative stress, facilitating worm survival by regulating downregulated ced-3. This observation may indicate the mechanism by which A. cantonensis L5 worms, with downregulated Acan-RPS-30, survive in the central nervous system of humans from the immune response of eosinophils. Graphic abstract ![]()
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Affiliation(s)
- Wei-Wei Sun
- Department of Biochemistry, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, PR China
| | - Xiu-Mei Yan
- Department of Pediatric Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China
| | - Qing Shi
- Department of Parasitology, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, PR China
| | - Yuan-Jiao Zhang
- Department of Parasitology, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, PR China
| | - Jun-Ting Huang
- School of First Clinic Medicine, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, PR China
| | - Hui-Cong Huang
- Department of Parasitology, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, PR China.
| | - Hong-Fei Shi
- Henan Provincial Engineering Laboratory of Insects Bio-reactor, China-UK-NYNU-RRes Joint Laboratory of Insect Biology, Nanyang Normal University, Nanyang, 473061, PR China.
| | - Bao-Long Yan
- Department of Parasitology, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, PR China.
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Wang ZH, Qi SG, Zhang H, Mao PX, He YL, Li J, Xiao SY, Peng HM, Sun WW, Guo HY, Liu M. [Impact of the COVID-19 epidemic on anxiety among the elderly in community]. Zhonghua Yi Xue Za Zhi 2020; 100:3179-3185. [PMID: 33142403 DOI: 10.3760/cma.j.cn112137-20200720-02167] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the prevalence of anxiety among old people before and during the COVID-19 epidemic in China, and to provide scientific evidence for psychological intervention of the elderly during public health emergencies. Methods: In 2019, the National Psychological Care Project for the Elderly was launched, covering 818 communities across the country, and 188 407 subjects received psychological assessment. In April and May 2020, a convenient sample of 6 467 aged 65 and above subjects were followed up on the anxiety status and its influencing factors during the epidemic period by using structurized questionnaire. Data collection and management were carried out using the national elderly psychological care project data collection platform. McNemar test was used to compare the difference of the prevalence of anxiety among elderly before (October 2019 to January 23, 2020) and during the epidemic (April-May 2020). The difference of the prevalence of anxiety among elderly with different characteristics was compared by chi square test. The influencing factors of anxiety before and during the epidemic situation were analyzed by multivariate logistic regression model. Results: The prevalence of anxiety symptoms in the elderly population was 4.95% (95%CI: 4.42%-5.48%) before the outbreak of COVID-19, and 10.10% (95%CI: 9.36%-10.83%) during the epidemic which was twice as high as before the outbreak. The difference was statistically significant (P<0.05). Multivariate logistic regression analysis showed that the risk factors of anxiety symptoms before the outbreak were with one underlying disease (OR=1.57, 95%CI: 1.05-2.37), with two or more underlying diseases (OR=3.10, 95%CI: 2.13-4.51), and the protective factors were with hobbies, good relationship between children, good relationship with spouse, positive aging attitude and good psychological resilience (all P<0.05). The risk factors of developing anxiety symptoms during the epidemic were living in rural areas (OR=1.77, 95%CI: 1.42-2.20), participating in social activities regularly (OR=1.23, 95%CI: 1.02-1.48), having a good relationship with friends (OR=1.42, 95%CI: 1.11-1.82) and were quarantined or people around were quarantined for medical observation (OR=2.80, 95% CI: 1.90-4.13). Conclusion: The COVID-19 epidemic leads to a double increase in anxiety among the elderly. We should pay more attention to the psychological state of the elderly in rural area and who is being quarantined or people around being quarantined for medical observation.
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Affiliation(s)
- Z H Wang
- National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - S G Qi
- National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - H Zhang
- National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - P X Mao
- Department of Geriatrics of Beijing Anding Hospital Affiliated to Capital Medical University, Beijing 100088, China
| | - Y L He
- Department of Psychiatry at Shanghai Mental Health Center, Shanghai 200030, China
| | - J Li
- Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China
| | - S Y Xiao
- Mental Health Center of Xiangya Hospital, Central South University, Changsha 410078, China
| | - H M Peng
- Faculty of Psychology, Beijing Normal University, Beijing 100875, China
| | - W W Sun
- School of Sociology and Psychology, Central University of Finance and Economics, Beijing 100081, China
| | - H Y Guo
- National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - M Liu
- Department of Ageing and Health of National Health Commission of the People's Republic of China, Beijing 100044, China
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Wang R, Han Y, Luo MZ, Wang NK, Sun WW, Wang SC, Zhang HD, Lu LJ. Accuracy study of a binocular-stereo-vision-based navigation robot for minimally invasive interventional procedures. World J Clin Cases 2020; 8:3440-3449. [PMID: 32913850 PMCID: PMC7457116 DOI: 10.12998/wjcc.v8.i16.3440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/07/2020] [Accepted: 07/18/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Medical robot is a promising surgical tool, but no specific one has been designed for interventional treatment of chronic pain. We developed a computed tomography-image based navigation robot using a new registration method with binocular vision. This kind of robot is appropriate for minimal invasive interventional procedures and easy to operate. The feasibility, accuracy and stability of this new robot need to be tested.
AIM To assess quantitatively the feasibility, accuracy and stability of the binocular-stereo-vision-based navigation robot for minimally invasive interventional procedures.
METHODS A box model was designed for assessing the accuracy for targets at different distances. Nine (three sets) lead spheres were embedded in the model as puncture goals. The entry-to-target distances were set 50 mm (short-distance), 100 mm (medium-distance) and 150 mm (long-distance). Puncture procedure was repeated three times for each goal. The Euclidian error of each puncture was calculated and statistically analyzed. Three head phantoms were used to explore the clinical feasibility and stability. Three independent operators conducted foramen ovale placement on head phantoms (both sides) by freehand or under the guidance of robot (18 punctures with each method). The operation time, adjustment time and one-time success rate were recorded, and the two guidance methods were compared.
RESULTS On the box model, the mean puncture errors of navigation robot were 1.7 ± 0.9 mm for the short-distance target, 2.4 ± 1.0 mm for the moderate target and 4.4 ± 1.4 mm for the long-distance target. On the head phantom, no obvious differences in operation time and adjustment time were found among the three performers (P > 0.05). The median adjustment time was significantly less under the guidance of the robot than under free hand. The one-time success rate was significantly higher with the robot (P < 0.05). There was no obvious difference in operation time between the two methods (P > 0.05).
CONCLUSION In the laboratory environment, accuracy of binocular-stereo-vision-based navigation robot is acceptable for target at 100 mm depth or less. Compared with freehand, foramen ovale placement accuracy can be improved with robot guidance.
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Affiliation(s)
- Ran Wang
- Department of Pain Management, Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, China
| | - Ying Han
- Department of Pain Management, Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, China
| | - Min-Zhou Luo
- Institute of Intelligent Manufacturing Technology, Jiangsu Industrial Technology Research Institute, Nanjing 210000, Jiangsu Province, China
| | - Nai-Kun Wang
- Department of Pain Management, Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, China
| | - Wei-Wei Sun
- Department of Pain Management, Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, China
| | - Shi-Chong Wang
- Department of Pain Management, Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, China
| | - Hua-Dong Zhang
- Institute of Intelligent Manufacturing Technology, Jiangsu Industrial Technology Research Institute, Nanjing 210000, Jiangsu Province, China
| | - Li-Juan Lu
- Department of Pain Management, Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, China
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12
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Sun WW, Zhang L, Gu MM, Zhang YQ, Qiu CM, Da Q. [Gastric adenocarcinoma of the fundic gland type: clinicopathological analysis of six cases]. Zhonghua Bing Li Xue Za Zhi 2020; 49:343-347. [PMID: 32268671 DOI: 10.3760/cma.j.cn112151-20190720-00404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinicopathological characteristics of gastric adenocarcinoma of the fundic gland(GA-FG). Methods: A total of 6 patients with GA-FG admitted from January 2014 to May 2019 were identified at Shanghai Songjiang District Central Hospital.Analyzed endoscopic findings, pathological characteristics and immunohistochemical staining of the lesions and reviewed relevant literatures. Results: Among the 6 patients, 3 were male, 3 were female, and the mean age was 66 years. The most common clinical presentation was epigastric discomfort. Gastroscopic examination revealed an elevated or flat lesion in the body of the stomach, with a diameter of 0.4 to 1.0 cm. Histopathologically, they mainly composed of main cells, but there were also scattered parietal cells, arranged in an irregular tubular or cord-like structure, and formed anastomosis branches. The tumor cells were immunohistochemically positive for MUC6 and pepsinogen 1. Conclusions: GA-FG is a rare variant of well-differentiated adenocarcinoma. It is important to understand its clinical features and histological morphology for more accurate diagnosis.
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Affiliation(s)
- W W Sun
- Department of Pathology, Shanghai Songjiang District Central Hospital, Shanghai 201600, China
| | - L Zhang
- Department of Pathology, Shanghai Songjiang District Central Hospital, Shanghai 201600, China
| | - M M Gu
- Department of Pathology, Shanghai Songjiang District Central Hospital, Shanghai 201600, China
| | - Y Q Zhang
- Department of Pathology, Shanghai Songjiang District Central Hospital, Shanghai 201600, China
| | - C M Qiu
- Department of Pathology, Shanghai Songjiang District Central Hospital, Shanghai 201600, China
| | - Q Da
- Department of Pathology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
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13
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Zhao RH, Liu Y, Lu D, Wu Y, Wang XY, Li WL, Zeng C, Meng QW, Lian FM, Zhou J, Shi Y, Sun WW, Han Q, Tang Y, Shi G. Chinese Medicine Sequential Therapy Improves Pregnancy Outcomes after Surgery for Endometriosis-Associated Infertility: A Multicenter Randomized Double-blind Placebo Parallel Controlled Clinical Trial. Chin J Integr Med 2020; 26:92-99. [PMID: 31997236 DOI: 10.1007/s11655-019-3208-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/01/2019] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To evaluate the efficacy and safety of Chinese medicine (CM) improving pregnancy outcomes after surgery for endometriosis-associated infertility. METHODS A multicenter, randomized, double-blind placebo parallel controlled clinical trial was designed. A total of 202 patients who had laparoscopy for endometriosis-associated infertility with qi stagnation and blood stasis syndrome were included and randomly divided into the CM treatment group and placebo control group at a ratio of 1:1 using a central block randomization from May 2014 to September 2017, 101 patients in each group. The two groups received continuous intervention at 1-5 days after surgery, for 6 menstrual cycles. Before ovulation, the CM group was treated Huoxue Xiaoyi Granule (); after ovulation, Bushen Zhuyun Granule ( was involved. The control group was treated with placebo. Transvaginal ultrasonography was performed every menstrual cycle during the treatment, and female hormone levels in the follicular and luteal phases were measured during the 1st, 3rd and 6th menstrual cycles. The analysis was continued until pregnancy. The primary outcomes were clinical pregnancy rate and pregnancy outcome, and the secondary outcomes were follicular development and endometrial receptivity. Safety evaluations were performed before and after treatment. RESULTS (1) Clinical pregnancy and live birth rates: the clinical pregnancy and live birth rates of the CM group were significantly higher than those of the placebo group [44.6% (45/101) vs. 29.7% (30/101), 34.7% (35/101) vs. 20.8% (21/101), both P<0.05]. (2) Follicle development: the incidence of dominant follicles, rate of cumulative cycle ovulation, and rate of cumulative cycle mature follicle ovulation were significantly higher in the CM group than those in the placebo group [93.8% (350/373) vs. 89.5% (341/381), 80.4% (275/342) vs. 69.1% (253/366), 65.8% (181/275) vs 56.1% (142/253), P<0.05 or P<0.01]). The incidence of cumulative cycle luteinized unruptured follicle syndrome was significantly lower in the CM group than in the placebo group [11.7% (40/342) vs. 17.8% (65/366), P<0.05). (3) Endometrial receptivity: after treatment, both endometrial types and endometrial blood flow types in the CM group were mainly types A and B, while those in the placebo group were mainly types B and C, with a significant difference between the two groups (both P<0.05). (4) Adverse events: the incidence of adverse events between the two groups was not significantly different (P>0.05). CONCLUSION Strategies for activating blood circulation-regulating Gan (Liver)-tonifying Shen (Kidney) sequential therapy can effectively improve the clinical pregnancy rate and live birth rate of endometriosis-associated infertility with qi stagnation and blood stasis after laparoscopy, improve follicular development, promote ovulation, improve endometrial receptivity, while being a safe treatment option. (Trial registration No. NCT02676713).
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Affiliation(s)
- Rui-Hua Zhao
- Department of Gynecology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China.
| | - Yong Liu
- Department of Gynecology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Dan Lu
- Department of Gynecology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, 100026, China
| | - Ying Wu
- Department of Gynecology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, 100026, China
| | - Xiao-Yun Wang
- Department of Gynecology, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou, 510120, China
| | - Wei-Li Li
- Department of Gynecology, First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, 230031, China
| | - Cheng Zeng
- Department of Gynecology, First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, 510405, China
| | - Qing-Wei Meng
- Department of Gynecology, Beijing Hospital, Beijing, 100730, China
| | - Feng-Mei Lian
- Department of Gynecology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Jun Zhou
- Department of Gynecology, First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, 230031, China
| | - Yun Shi
- Department of Gynecology, Dongzhimen Hospital Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Wei-Wei Sun
- Department of Gynecology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Qian Han
- Department of Gynecology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, 100026, China
| | - Yi Tang
- Maternal and Child Health Service Center of Pidu District, Chengdu, 611730, China
| | - Guang Shi
- Department of Gynecology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
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Sun WW, ShangGuan T, Zhu P, Li HK, Jiang M, Yang P, Li LY, Zhang ZH. Role of hepatic neuropeptide Y-Y1 receptors in a methionine-choline-deficient model of non-alcoholic steatohepatitis. Life Sci 2020; 245:117356. [PMID: 31991181 DOI: 10.1016/j.lfs.2020.117356] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 11/20/2019] [Revised: 01/21/2020] [Accepted: 01/23/2020] [Indexed: 01/07/2023]
Abstract
AIMS NPY-Y1R plays an important role in dietary regulation. Although germline knockdown of NPY-Y1R in mice alleviates high-fat-diet-induced obesity and increases CPT1α levels in the liver, the role of the Y1 receptor in specific tissues has not been studied. MAIN METHODS MCD diet is the most widely used method to establish a model of lean NASH in a short time. We therefore evaluated the role of liver NPY-Y1R in NASH progression. KEY FINDINGS In mice with liver-specific knockout of NPY-Y1R (LivKO) and wild-type control littermates fed MCD diet for 4 weeks, NPY-Y1R deficiency significantly decreased body and liver weight. Moreover, NPY-Y1R deletion protected mice against hepatic steatosis and injury. LivKO decreased TG, TC, and FFA levels in the liver and alanine aminotransferase activity in plasma. To clarify the mechanism, we evaluated the key enzymes involved in triglyceride hydrolase and fatty-acid oxidase. Expression of ATGL, CPT1α, and ACO was significantly increased in LivKO mice, whereas expression of fatty-acid synthase was significantly decreased. mRNA expression analysis revealed a marked reduction of genes involved in de-novo lipogenesis and monosaturated fatty-acid synthesis, including sterol-regulatory element-binding protein 1c and fatty-acid synthase. Moreover, liver injury-related factors were significantly decreased in LivKO mice, such as TNF-α, inducible nitric oxide synthase, and MCP-1. Thus, NPY-Y1R deficiency in the liver alleviates lipid deposition and injury. However, NPY-Y1R did not affect inflammation and fibrosis. SIGNIFICANCE NPY-Y1R deficiency in the liver directly suppresses not only hepatic steatosis, but also liver injury, and thus provides a treatment option for NASH.
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Affiliation(s)
- Wei-Wei Sun
- Department of Cardiology, Southwest Hospital, Third Military Medical University, China
| | - Tao ShangGuan
- Department of Cardiology, Southwest Hospital, Third Military Medical University, China
| | - Ping Zhu
- Department of Cardiology, Southwest Hospital, Third Military Medical University, China
| | - Hua-Kang Li
- Department of Cardiology, Southwest Hospital, Third Military Medical University, China
| | - Min Jiang
- Department of Cardiology, Southwest Hospital, Third Military Medical University, China
| | - Pan Yang
- Department of Cardiology, Southwest Hospital, Third Military Medical University, China
| | - Lin-Yu Li
- Department of Cardiology, Southwest Hospital, Third Military Medical University, China
| | - Zhi-Hui Zhang
- Department of Cardiology, Southwest Hospital, Third Military Medical University, China.
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Qu D, Sun WW, Li L, Ma L, Sun L, Jin X, Li T, Hou W, Wang JH. Long noncoding RNA MALAT1 releases epigenetic silencing of HIV-1 replication by displacing the polycomb repressive complex 2 from binding to the LTR promoter. Nucleic Acids Res 2019; 47:3013-3027. [PMID: 30788509 PMCID: PMC6451131 DOI: 10.1093/nar/gkz117] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [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: 11/27/2018] [Revised: 02/10/2019] [Accepted: 02/14/2019] [Indexed: 12/23/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) may either repress or activate HIV-1 replication and latency; however, specific mechanisms for their action are not always clear. In HIV-1 infected CD4+ T cells, we performed RNA-Sequencing (RNA-Seq) analysis and discovered an up-regulation of MALAT1 (metastasis-associated lung adenocarcinoma transcript 1), an lncRNA previously described in cancer cells that associate with cancer pathogenesis. Moreover, we found that MALAT1 promoted HIV-1 transcription and infection, as its knockdown by CRISPR/Cas9 markedly reduced the HIV-1 long terminal repeat (LTR)-driven gene transcription and viral replication. Mechanistically, through an association with chromatin modulator polycomb repressive complex 2 (PRC2), MALAT1 detached the core component enhancer of zeste homolog 2 (EZH2) from binding with HIV-1 LTR promoter, and thus removed PRC2 complex-mediated methylation of histone H3 on lysine 27 (H3K27me3) and relieved epigenetic silencing of HIV-1 transcription. Moreover, the reactivation of HIV-1 stimulated with latency reversal agents (LRAs) induced MALAT1 expression in latently infected cells. Successful combination antiretroviral therapy (cART) was accompanied by significantly diminished MALAT1 expression in patients, suggesting a positive correlation of MALAT1 expression with HIV-1 replication. Our data have identified MALAT1 as a promoter of HIV-1 transcription, and suggested that MALAT1 may be targeted for the development of new therapeutics.
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Affiliation(s)
- Di Qu
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China.,University of Chinese Academy of Sciences, Beijing 100039, China
| | - Wei-Wei Sun
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China.,University of Chinese Academy of Sciences, Beijing 100039, China
| | - Li Li
- School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei 430070, China.,State Key Laboratory of Virology, Wuhan University, Wuhan, Hubei 430070, China
| | - Li Ma
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Li Sun
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Xia Jin
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Taisheng Li
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Wei Hou
- School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei 430070, China.,State Key Laboratory of Virology, Wuhan University, Wuhan, Hubei 430070, China
| | - Jian-Hua Wang
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China.,University of Chinese Academy of Sciences, Beijing 100039, China
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Liu J, Chen Y, Xu J, Sun W, Zheng C, Li Y. Effectively enhanced structural stability and electrochemical properties of LiNi 0.5Mn 1.5O 4 cathode materials via poly-(3,4-ethylenedioxythiophene)- in situ coated for high voltage Li-ion batteries. RSC Adv 2019; 9:3081-3091. [PMID: 35518951 PMCID: PMC9059992 DOI: 10.1039/c8ra09550g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 01/12/2019] [Indexed: 01/31/2023] Open
Abstract
Spinel LiNi0.5Mn1.5O4 shows promise as a potential candidate for Li-ion batteries due to its high energy density and high rate performance. However, LiNi0.5Mn1.5O4 (LNMO) spinel oxides usually deliver poor cycle life because of the increasing impedance and gradually dissolving Mn resulting in the destruction of crystal structure. Here, a conductive polymer poly-(3,4-ethylenedioxythiophene) (PEDOT) surface modified strategy is introduced to settle the above challenges. The main purpose is to construct a uniform and dense shell film on the surface of LiNi0.5Mn1.5O4 (Industrial Grade), which is prepared by a simple chemical in situ oxidative polymerization method. The Mn dissolving from the lattice during the long-term cycling is well inhibited as the polymer shell protects LiNi0.5Mn1.5O4 from direct exposure to the highly active electrolyte. As expected, the 3 wt% poly-(3,4-ethylenedioxythiophene) coated sample reveals long cycle life with acceptable capacity of 114.5 mA h g-1 and high capacity retention of 91.6% after 200 cycles, compared to 70.9 mA h g-1 and 56.5%, respectively, for the bare LiNi0.5Mn1.5O4 sample. Furthermore, the coated sample demonstrates a higher capacity of 110 mA h g-1 and 63 mA h g-1 at 5C and 10C rate respectively. The improved performance is believed to be attributed to the formation of high conductivity and stable interface structure between electrolyte and LNMO, which is beneficial to suppress the destruction of crystalline structure due to the Mn dissolution and undesired side-reaction between electrolyte and LiNi0.5Mn1.5O4 in long cycle, and improve simultaneously the conductivity and interface stability of LiNi0.5Mn1.5O4 for high voltage lithium-ion batteries.
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Affiliation(s)
- JinFeng Liu
- College of Aerospace Science and Engineering, National University of Defense Technology Chang Sha 410073 China +8615607499928
| | - YuFang Chen
- College of Aerospace Science and Engineering, National University of Defense Technology Chang Sha 410073 China +8615607499928
| | - Jing Xu
- College of Aerospace Science and Engineering, National University of Defense Technology Chang Sha 410073 China +8615607499928
| | - WeiWei Sun
- College of Aerospace Science and Engineering, National University of Defense Technology Chang Sha 410073 China +8615607499928
| | - ChunMan Zheng
- College of Aerospace Science and Engineering, National University of Defense Technology Chang Sha 410073 China +8615607499928
| | - YuJie Li
- College of Aerospace Science and Engineering, National University of Defense Technology Chang Sha 410073 China +8615607499928
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Wang SJ, Zhao JK, Ren S, Sun WW, Zhang WJ, Zhang JN. Wogonin affects proliferation and the energy metabolism of SGC-7901 and A549 cells. Exp Ther Med 2018; 17:911-918. [PMID: 30651880 DOI: 10.3892/etm.2018.7023] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Accepted: 10/03/2018] [Indexed: 12/11/2022] Open
Abstract
Many studies have focused on the identification of therapeutic targets for the treatment of certain types of cancer. Wogonin is a natural flavonoid compound that exhibits a potent anti-cancer effect. The underlying mechanism of wogonin may therefore reveal an effective way to identify novel therapeutic targets. In the current study, growth curves and MTT assays were performed to determine the effects of wogonin in human gastric cancer cells (SGC-7901) and human lung adenocarcinoma cells (A549), respectively. Changes in morphology were observed using hematoxylin and eosin (H&E) staining. The activities of key enzymes in the glycolysis and tricarboxylic acid cycle were measured using spectrophotometry. Western blot analysis was performed to determine the expression levels of hypoxia inducible factor-1α (HIF-1α) and monocarboxylate transporter-4 (MCT-4). Wogonin inhibited cell proliferation in a time- and dose-dependent manner in SGC-7901 and A549 cells. H&E staining suggested that wogonin induced cell morphology changes. In SGC-7901 cells, lactate dehydrogenase (LDH) and succinate dehydrogenase (SDH) activities and adenosine triphosphate (ATP) generation were decreased significantly by wogonin treatment compared with the untreated control. In A549 cells, wogonin significantly reduced LDH activity, but exhibited no significant effects on kinase activities or ATP generation. Furthermore, wogonin significantly decreased HIF-1α and MCT-4 protein expression in SGC-7901 cells, but not in A549 cells. The results demonstrated that wogonin inhibited the energy metabolism, cell proliferation and angiogenesis in SGC-7901 and A549 cells by negatively regulating HIF-1α and MCT-4 expression. The differential regulatory roles of wogonin in metabolism-associated enzymes in human gastric cancer and lung adenocarcinoma cells indicated its various antitumor mechanisms. The different metabolic regulatory mechanisms exhibited by wogonin in different tumor tissues should therefore be considered for antitumor therapy.
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Affiliation(s)
- Shu-Jing Wang
- College of Pharmacy, Harbin University of Commerce, Harbin, Heilongjiang 150076, P.R. China
| | - Jian-Kai Zhao
- College of Pharmacy, Harbin University of Commerce, Harbin, Heilongjiang 150076, P.R. China
| | - Shuang Ren
- College of Pharmacy, Harbin University of Commerce, Harbin, Heilongjiang 150076, P.R. China
| | - Wei-Wei Sun
- College of Pharmacy, Harbin University of Commerce, Harbin, Heilongjiang 150076, P.R. China
| | - Wen-Jun Zhang
- College of Pharmacy, Harbin University of Commerce, Harbin, Heilongjiang 150076, P.R. China
| | - Jia-Ning Zhang
- College of Pharmacy, Harbin University of Commerce, Harbin, Heilongjiang 150076, P.R. China
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18
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Cao LM, Zhou Y, Zhang Z, Sun WW, Mu G, Chen WH. [Impacts of airborne particulate matter and its components on respiratory system health]. Zhonghua Yu Fang Yi Xue Za Zhi 2017; 50:1114-1118. [PMID: 28057119 DOI: 10.3760/cma.j.issn.0253-9624.2016.12.018] [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
Nowadays, particulate air pollution has been a global environmental problem. Numerous studies has shown that long-term exposure to high level of airborne particulate matter (PM) can damage human health. Respiratory system, as a direct portal to contact with particulate matter, can be more susceptible to airborne particulates. Summarizing latest five-year epidemiological research, the present review is focused on the effects of PM on respiratory system health in different age groups. In detail, we investigated the harmful effect of PM, or its components on three common respiratory diseases, including lung function decline, chronic obstructive pulmonary disease (COPD) and asthma. The result showed that, to a certain degree, PM could induce the decline of lung function, the development and the exacerbation of COPD and asthma by oxidative stress and inflammatory reaction. And it may prompt that exposure to PM can be an improtant risk factor for the respiratory system health.
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Affiliation(s)
- L M Cao
- Department of Occupational and Environmental Health, Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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19
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Ren XX, Ma L, Sun WW, Kuang WD, Li TS, Jin X, Wang JH. Dendritic cells maturated by co-culturing with HIV-1 latently infected Jurkat T cells or stimulating with AIDS-associated pathogens secrete TNF-α to reactivate HIV-1 from latency. Virulence 2017; 8:1732-1743. [PMID: 28762863 DOI: 10.1080/21505594.2017.1356535] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
Elucidation of mechanisms underlying the establishment, maintenance of and reactivation from HIV-1 latency is essential for the development of therapeutic strategies aimed at eliminating HIV-1 reservoirs. Microbial translocation, as a consequence of HIV-1-induced deterioration of host immune system, is known to result in a systemic immune activation and transient outbursts of HIV-1 viremia in chronic HIV-1 infection. How these microbes cause the robust HIV-1 reactivation remains elusive. Dendritic cells (DCs) have previously been shown to reactivate HIV-1 from latency; however, the precise role of DCs in reactivating HIV-1 from latently infected T-cell remains obscure. In this study, by using HIV-1 latently infected Jurkat T cells, we demonstrated that AIDS-associated pathogens as represented by Mycobacterium bovis (M. bovis) Bacillus Calmette-Guérin (BCG) and bacterial component lipopolysaccharide (LPS) were unable to directly reactivate HIV-1 from Jurkat T cells; instead, they mature DCs to secrete TNF-α to accomplish this goal. Moreover, we found that HIV-1 latently infected Jurkat T cells could also mature DCs and enhance their TNF-α production during co-culture in a CD40-CD40L-signaling-dependent manner. This in turn led to viral reactivation from Jurkat T cells. Our results reveal how DCs help AIDS-associated pathogens to trigger HIV-1 reactivation from latency.
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Affiliation(s)
- Xiao-Xin Ren
- a Jiangsu Key Laboratory of Infection and Immunity , Institutes of Biology and Medical Sciences, Soochow University , Suzhou , China.,b Key Laboratory of Molecular Virology and Immunology , Institut Pasteur of Shanghai, Chinese Academy of Sciences , Shanghai , China
| | - Li Ma
- a Jiangsu Key Laboratory of Infection and Immunity , Institutes of Biology and Medical Sciences, Soochow University , Suzhou , China.,b Key Laboratory of Molecular Virology and Immunology , Institut Pasteur of Shanghai, Chinese Academy of Sciences , Shanghai , China
| | - Wei-Wei Sun
- b Key Laboratory of Molecular Virology and Immunology , Institut Pasteur of Shanghai, Chinese Academy of Sciences , Shanghai , China.,c University of Chinese Academy of Sciences , Beijing , China
| | - Wen-Dong Kuang
- b Key Laboratory of Molecular Virology and Immunology , Institut Pasteur of Shanghai, Chinese Academy of Sciences , Shanghai , China.,c University of Chinese Academy of Sciences , Beijing , China
| | - Tai-Sheng Li
- d Department of Infectious Diseases , Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing , China
| | - Xia Jin
- b Key Laboratory of Molecular Virology and Immunology , Institut Pasteur of Shanghai, Chinese Academy of Sciences , Shanghai , China
| | - Jian-Hua Wang
- b Key Laboratory of Molecular Virology and Immunology , Institut Pasteur of Shanghai, Chinese Academy of Sciences , Shanghai , China.,c University of Chinese Academy of Sciences , Beijing , China
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Abstract
Diabetes-induced atherosclerotic cardiovascular disease is the leading cause of death of diabetic patients. Neuronal regulation plays a critical role in glucose metabolism and cardiovascular function under physiological and pathological conditions, among which, neurotransmitter neuropeptide Y has been shown to be closely involved in these two processes. Elevated central neuropeptide Y level promotes food intake and reduces energy expenditure, thereby increasing adiposity. Neuropeptide Y is co-localized with noradrenaline in central and sympathetic nervous systems. As a major peripheral vascular contractive neurotransmitter, through interactions with its receptors, neuropeptide Y has been implicated in the pathology and progression of diabetes, by promoting the proliferation of endothelial cells and vascular fibrosis, which may contribute to diabetes-induced cardiovascular disease. Neuropeptide Y also participates in the pathogenesis of atherosclerosis, the major form of cardiovascular disease, via aggravating endothelial dysfunction, growth of vascular smooth muscle cells, formation of foam cells and platelets aggregation. This review highlights the causal role of neuropeptide Y and its receptor system in the development of diabetes mellitus and one of its complications: atherosclerotic cardiovascular disease. The information from this review provides both critical insights onto the mechanisms underlying the pathogenesis of atherosclerosis and evidence for the development of therapeutic strategies.
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Affiliation(s)
- Wei-Wei Sun
- 1 Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Ping Zhu
- 1 Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Yan-Chuan Shi
- 2 Neuroscience Division, Garvan Institute of Medical Research, Sydney, NSW, Australia
| | - Chen-Liang Zhang
- 1 Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Xu-Feng Huang
- 3 School of Health Sciences and Illawarra Health and Medical Research Institute, University of Wollongong Australia, Wollongong, NSW, Australia
| | - Shi-Yu Liang
- 1 Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Zhi-Yuan Song
- 1 Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Shu Lin
- 1 Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing, China
- 3 School of Health Sciences and Illawarra Health and Medical Research Institute, University of Wollongong Australia, Wollongong, NSW, Australia
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Sun CQ, Zhong CY, Sun WW, Xiao H, Zhu P, Lin YZ, Zhang CL, Gao H, Song ZY. Elevated Type II Secretory Phospholipase A2 Increases the Risk of Early Atherosclerosis in Patients with Newly Diagnosed Metabolic Syndrome. Sci Rep 2016; 6:34929. [PMID: 27941821 PMCID: PMC5150250 DOI: 10.1038/srep34929] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [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: 04/27/2016] [Accepted: 09/20/2016] [Indexed: 12/24/2022] Open
Abstract
A critical association between type II secretory phospholipase A2 (sPLA2-IIa) and established atherosclerotic cardiovascular disease has been demonstrated. However, the contribution of sPLA2-IIa to early atherosclerosis remains unknown. This study investigated the association between early-stage atherosclerosis and sPLA2-IIa in metabolic syndrome (MetS) patients. One hundred and thirty-six MetS patients and 120 age- and gender-matched subjects without MetS were included. Serum sPLA2-IIa protein levels and activity were measured using commercial kits. Circulating endothelial activation molecules (vascular cell adhesion molecule-1 (VCAM-1), intercellular adhesion molecule-1 (ICAM-1), E-selectin, and P-selectin), and carotid intima-media thickness (cIMT), were measured as parameters of vascular endothelial dysfunction and early atherosclerosis. MetS patients exhibited significantly higher sPLA2-IIa protein and activity levels than the controls. Both correlated positively with fasting blood glucose and waist circumference in MetS patients. Additionally, MetS patients exhibited strikingly higher levels of endothelial activation molecules and increased cIMT than controls. These levels correlated positively with serum sPLA2-IIa protein levels and activity. Moreover, multivariate analysis showed that high sPLA2-IIa protein and activity levels were independent risk factors of early atherosclerosis in MetS patients. This study demonstrates an independent association between early-stage atherosclerosis and increased levels of sPLA2-IIa, implying that increased sPLA2-IIa may predict early-stage atherosclerosis in MetS patients.
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Affiliation(s)
- Chang-Qing Sun
- Department of Cardiology, Southwest Hospital, The Third Military Medical University, Chongqing, 400038, China.,Department of Geriatrics, The First Affiliated Hospital of Xiamen University, Xiamen, 361003, China
| | - Chun-Yan Zhong
- Department of Cardiology, Southwest Hospital, The Third Military Medical University, Chongqing, 400038, China
| | - Wei-Wei Sun
- Department of Cardiology, Southwest Hospital, The Third Military Medical University, Chongqing, 400038, China
| | - Hua Xiao
- Department of Cardiology, Southwest Hospital, The Third Military Medical University, Chongqing, 400038, China
| | - Ping Zhu
- Department of Cardiology, Southwest Hospital, The Third Military Medical University, Chongqing, 400038, China
| | - Yi-Zhang Lin
- Department of Cardiology, Southwest Hospital, The Third Military Medical University, Chongqing, 400038, China
| | - Chen-Liang Zhang
- Department of Cardiology, Southwest Hospital, The Third Military Medical University, Chongqing, 400038, China
| | - Hao Gao
- Department of Cardiology, Southwest Hospital, The Third Military Medical University, Chongqing, 400038, China
| | - Zhi-Yuan Song
- Department of Cardiology, Southwest Hospital, The Third Military Medical University, Chongqing, 400038, China
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22
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Wang ZH, Sun WW, Han YL, Ma Z. Effects of sodium lactate Ringer's injection on transfection of human protein kinase C-α antisense oligonucleotide in A549 lung cancer cells. Genet Mol Res 2016; 15:gmr7650. [PMID: 27706607 DOI: 10.4238/gmr.15037650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
In the present study, we evaluated the effects of four solutions [Dulbecco's modified Eagle's medium (DMEM), sodium lactate Ringer's injection (SLRI), phosphate-buffered saline (PBS), and NaCl] on the transfection of the human protein kinase C-a antisense oligonucleotide (PKC-a ASO) aprinocarsen in human lung carcinoma A549 cells. Specifically, SLRI, DMEM, PBS, or NaCl were used as the growth solutions for A549 cells, and OPTI-MEM was used as the PKC-a ASO diluent for transfection. Additionally, SLRI, DMEM, PBS, or NaCl were used as both the growth solutions and diluents for transfection. The cell viability and transfection efficiency were determined. The results demonstrated that when SLRI was used as either the growth solution or both the growth solution and diluent for aprinocarsen transfection in A549 cells, the effects were close to the best effects observed with DMEM as the growth solution and OPTI-MEM as the diluent, which supported the transfection of aprinocarsen into the cells. Moreover, SLRI resulted in higher transfection efficiency than those of PBS and NaCl. In in vitro experiments, aprinocarsen effectively induced apoptosis in A549 cells. In conclusion, SLRI may replace PBS or NaCl in clinical trials as a transfection solution readily accepted by the human body. To our knowledge, this is the first report demonstrating the use of SLRI as a transfection solution in lung-cancer cell lines.
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Affiliation(s)
- Z H Wang
- Department of Respiratory Medicine, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning, China.,Department of Histology and Embryology, Shenyang Medical College, Shenyang, Liaoning, China
| | - W W Sun
- Department of Respiratory Medicine, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning, China
| | - Y L Han
- Department of Cardiology, Institute of Cardiovascular Research of People's Liberation Army, Shenyang Northern Hospital, Shenyang, Liaoning, China
| | - Z Ma
- Department of Respiratory Medicine, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning, China
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23
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Yang FC, Kuang WD, Li C, Sun WW, Qu D, Wang JH. Toll-Interacting Protein Suppresses HIV-1 Long-Terminal-Repeat-Driven Gene Expression and Silences the Post-Integrational Transcription of Viral Proviral DNA. PLoS One 2015; 10:e0125563. [PMID: 25915421 PMCID: PMC4411168 DOI: 10.1371/journal.pone.0125563] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 03/24/2015] [Indexed: 12/13/2022] Open
Abstract
Toll-interacting protein (Tollip) is a host adaptor protein for negatively regulating Toll-like receptor 2-, 4-, and IL-1R (interleukin-1 receptor)-mediated signaling. We found that Tollip expression could be induced in MDDCs (monocyte-derived dendritic cells) by HIV-1 particles and recombinant gp120 glycoprotein. Hence, we investigated the role of Tollip in modulating HIV-1 infection. We found that Tollip expression suppressed NF-κB-dependent HIV-1 long terminal repeat (LTR)-driven transcription and thus inhibited HIV-1 infection. Our protein truncation experiments proved that the intact C-terminus of Tollip was required for inhibition of both NF-κB activity and HIV-1 LTR-driven gene expression. Intriguingly, Tollip silenced the post-integrational transcription of HIV-1 proviral DNA, indicating the potential role of Tollip in maintaining viral persistence. Our results reveal the novel role of host factor Tollip in modulating HIV-1 infection, and may suggest the hijacking of Tollip as the negative regulator of the TLR pathway and even the downstream signaling, by HIV-1 for maintaining persistent infection. Further elucidation of the mechanisms by which HIV-1 induces Tollip expression and identification of the role of Tollip in modulating HIV-1 latency will facilitate the understanding of host regulation in viral replication and benefit the exploration of novel strategies for combating HIV-1 infection.
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Affiliation(s)
- Fu-Chun Yang
- Key Laboratory of Molecular Virology and Immunology, Institute Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Wen-Dong Kuang
- Key Laboratory of Molecular Virology and Immunology, Institute Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Chuan Li
- Key Laboratory of Molecular Virology and Immunology, Institute Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Wei-Wei Sun
- Key Laboratory of Molecular Virology and Immunology, Institute Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Di Qu
- Key Laboratory of Molecular Virology and Immunology, Institute Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Jian-Hua Wang
- Key Laboratory of Molecular Virology and Immunology, Institute Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
- * E-mail:
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24
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Lai SM, Sun WW, Don TM. Preparation and characterization of biodegradable polymer blends from poly(3-hydroxybutyrate)/poly(vinyl acetate)-modified corn starch. POLYM ENG SCI 2015. [DOI: 10.1002/pen.24071] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sun-Mou Lai
- Department of Chemical and Materials Engineering; National I-Lan University; I-Lan 260 Taiwan
| | - Wei-Wei Sun
- Department of Chemical and Materials Engineering; Tamkang University; New Taipei City 25137 Taiwan
| | - Trong-Ming Don
- Department of Chemical and Materials Engineering; Tamkang University; New Taipei City 25137 Taiwan
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25
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Ma Z, Sun WW, Wang X. Hydrogen peroxide enhances the uptake of polyethylenimine/oligonucleotide complexes in A549 cells by activating CaMKII independent of [Ca(2+)]c elevation. Genet Mol Res 2014; 13:2914-21. [PMID: 24634301 DOI: 10.4238/2014.february.21.15] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Aerosol oligonucleotide therapy has vast potential in pulmonary system diseases. Reactive oxygen species (ROS) play an important role in complex physiological processes such as cell signaling, apoptosis, etc. Therefore, to determine the mechanism of ROS involvement in polyethylenimine/oligonucleotide (PEI/ON) endocytosis in cells, we measured the fluorescence intensities of fluorescein isothiocyanate-labeled ON complexes with PEI and the changes in cytosolic Ca(2+) concentration ([Ca(2+)]c) in A549 cells after hydrogen peroxide (H2O2) stimulation. Results showed that improved uptake of PEI/ON complexes was independent of the rise of [Ca(2+)]c in A549 cells, including the Ca(2+) inflow and the release of Ca(2+) from intracellular stores induced by 500 μM H2O2. However, the enhanced uptake efficiency was almost completely abolished by the calcium/calmodulin-dependent protein kinase II (CaMKII) inhibitor and the microtube depolymerized drug. CaMKII-dependent microtube polymerization may be responsible for the enhanced uptake of PEI/ON complexes in A549 cells under oxidative stress conditions. This study is useful for research aimed at improving aerosol oligonucleotide therapy in pulmonary system diseases.
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Affiliation(s)
- Z Ma
- Department of Respiratory Medicine, The General Hospital of Shenyang Military Area Command, Shenyang, Liaoning, China
| | - W W Sun
- Department of Respiratory Medicine, The General Hospital of Shenyang Military Area Command, Shenyang, Liaoning, China
| | - X Wang
- Department of Experimental Medicine, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning, China
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Qiao Y, Sun WW, Wang JF, Zhang JD. Flavonoids from Podocarpus macrophyllus and their cardioprotective activities. J Asian Nat Prod Res 2013; 16:222-229. [PMID: 24313298 DOI: 10.1080/10286020.2013.861821] [Citation(s) in RCA: 7] [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] [Received: 07/18/2013] [Accepted: 10/30/2013] [Indexed: 06/02/2023]
Abstract
One new 8-aryl flavone, podocarflavone A (1), together with 15 previously reported flavonoids were isolated from the twigs and leaves of Podocarpus macrophyllus. Their structures were established on the basis of extensive spectroscopic analysis and by the comparison with spectroscopic data reported in the literature. Antioxidant capacities of the isolated substances were determined using the 1,1-diphenyl-2-picrylhydrazyl, ferrous ions, and 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) radical in vitro assays, and their cytoprotective activities were also tested on H2O2-induced apoptosis in H9c2 cardiomyocytes. The results showed that those flavonoids exhibited significant cardioprotective effects by decreasing the H2O2-induced death of H9c2 cell, and the levels of lactate dehydrogenase and creatine kinase, and by inhibiting the elevated intracellular concentration of reactive oxygen species.
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Affiliation(s)
- Yun Qiao
- a Department of Traditional Chinese Medicine , Qilu Hospital, Shandong University , Jinan , 250012 , China
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27
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Mulvaney JF, Yatteau A, Sun WW, Jacques B, Takubo K, Suda T, Yamada W, Dabdoub A. Secreted factor R-Spondin 2 is involved in refinement of patterning of the mammalian cochlea. Dev Dyn 2013. [PMID: 23192966 DOI: 10.1002/dvdy.23908] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND In the cochlea, patterning of the organ of Corti is tightly regulated to produce a single row of sound-detecting inner hair cells and three rows of outer hair cells, which amplify and refine the signal. The recently identified R-Spondin family of signaling molecules usually act as co-activators of Wnt signaling; it is thought that they regulate turnover of Wnt receptors at the membrane. We sought to test whether R-Spondins function in the developing cochlea. RESULTS Expression analysis of all four members of the R-Spondin family showed that only R-Spondin2 (Rspo2) is expressed in the cochlea during development of the sensory epithelium. Examination of an Rspo2(-/-) mouse showed that loss of Rspo2 results in an additional single row of outer hair cells and disruption of peripheral innervation pattern. Addition of Rspo2 recombinant protein to organotypic cochlear cultures resulted in a small but significant decrease in the number of outer hair cells. CONCLUSIONS Rspo2 is required to limit the number of outer hair cells to three rows and for optimal arrangement of peripheral nerve fibers. The Rspo2 gain- and loss-of-function studies show that in the ear, Rspo2 function is not consistent with its assigned role as a Wnt potentiator.
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Affiliation(s)
- J F Mulvaney
- Division of Otolaryngology, Department of Surgery, School of Medicine, University of California, San Diego, La Jolla, CA, USA.
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Liu F, Sun WW, Wang Y, Hu LQ, Dai P, Tian CF, Wang TH. Retraction notice to: “Effects of electro-acupuncture on NT-4 expression in spinal dorsal root ganglion and associated segments of the spinal dorsal horn in cats subjected to adjacent dorsal root ganglionectomy” [Neurosci. Lett. 450 (2009) 158–162]. Neurosci Lett 2012. [DOI: 10.1016/j.neulet.2012.08.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lv XH, Chen JW, Zhao G, Feng ZZ, Yang DH, Sun WW, Fan JS, Zhu GH. N-myc downstream-regulated gene 1/Cap43 may function as tumor suppressor in endometrial cancer. J Cancer Res Clin Oncol 2012; 138:1703-15. [PMID: 22678098 DOI: 10.1007/s00432-012-1249-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2012] [Accepted: 05/21/2012] [Indexed: 12/13/2022]
Abstract
PURPOSE N-myc downstream-regulated gene 1 (NDRG1) reportedly regulates tumor progression in various cancers. Our previous studies showed that NDRG1 was aberrantly overexpressed in human endometrial cancer tissues. The purpose of the present study was to investigate the role of NDRG1 in endometrial carcinogenesis. METHODS A short hairpin RNA (shRNA)-mediated gene silencing strategy was employed to stably suppress the expression of NDRG1 in endometrial cancer Ishikawa cells. The influence of NDRG1 silencing on cancer cell biological behaviors was examined through observing in vitro tumor cell proliferation, colony formation, cell migration and invasion. Moreover, the mammalian NDRG1 expression vector pcDNA3.1(+)/NDRG1 was constructed to determine the effects of NDRG1 overexpression on cell proliferation and migration. Additionally, gene expression microarray analysis was conducted to identify NDRG1 downstream target genes after NDRG1 knockdown. RESULTS It was demonstrated that NDRG1 knockdown significantly enhanced Ishikawa cell proliferation and dramatically promoted cell migration and invasion. Furthermore, overexpression of NDRG1 in Ishikawa cells greatly inhibited cell proliferation and migration. Through microarray analysis and data mining, a large cohort of NDRG1-repressed target genes were identified. Additionally, through comparing the current microarray results with those obtained previously in studies of cervical and ovarian cancer cells conducted by us, 19 more specific common downstream target genes were identified. CONCLUSIONS It was demonstrated that NDRG1 might carry out a tumor suppressor function during endometrial carcinogenesis. The identification of downstream target genes should afford meaningful hints for prospective investigations. The tumor suppressor function of NDRG1 may open a new window for the target therapy of endometrial cancer.
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Affiliation(s)
- Xiu-Hong Lv
- Department of Pathology, Shanghai Jiaotong University Affiliated Shanghai First People's Hospital, NO.85, Wujin Road, Shanghai 200080, People's Republic of China
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Liu LM, Yan MG, Yang DH, Sun WW, Zhang JX. The expression of protein inhibitor of activated signal transducers and activators of transcription 3 in the evolutionary process of gastric cancer. Eur J Intern Med 2011; 22:e31-5. [PMID: 21925039 DOI: 10.1016/j.ejim.2011.04.002] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2010] [Revised: 04/03/2011] [Accepted: 04/04/2011] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To study the expression of PIAS3 (protein inhibitor of activated signal transducers and activators of transcription 3) in the evolutionary process of gastric cancer. METHODS Samples were taken from the endoscopic biopsy specimens of 125 patients. Gastric mucosal lesions were diagnosed in HE staining, and chronic atrophic gastritis (CAG) with intestinal metaplasia (IM) were distinguished in AB-PAS and HID-AB staining. The expressions of PIAS3 gene in different types of gastric mucosal lesions were detected by immunocytochemistry and in situ hybridization. The results were analyzed using IPP 6.0 image analysis system, from which the average optical density was obtained of positive cells. RESULTS There were 25 patients with chronic superficial gastritis (CSG), 87 CAG (30 with complete intestinal IM, 27 with incomplete intestinal IM, 21 with complete colonic IM, 9 with incomplete colonic IM), 8 dysplasia (DYS) and 5 gastric cancer (GC). In the expressions of PIAS3 mRNA and protein, a difference was not found between the patients with CSG and those with CAG with complete or incomplete intestinal IM; however, a significant difference was statistically found among patients with CSG (or intestinal IM), complete colonic IM, incomplete colonic IM, DYS and GC, expression levels of which stepped down one by one. CONCLUSIONS There are differences in the PIAS3 expression from different stages of gastric precancerous conditions/lesions to GC, which may reveal a close relationship between expression reduction or loss of PIAS3 and gastric tumorigenesis.
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Affiliation(s)
- Liang-Ming Liu
- Songjiang Hospital Affiliated to the First People's Hospital Shanghai Jiaotong University, Shanghai 201600, China.
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Bi CJ, Chen ZL, Li M, Zhang JJ, Sun WW. [Transport and release of Cd, Pb and Cr from the Yangtze Estuarine sediments during sediment resuspension event]. Huan Jing Ke Xue 2011; 32:2512-2521. [PMID: 22165214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The effects of resuspension energy and duration on release and transport of sediment bound Cd, Pb and Cr in the southern coastal areas of Yangtze Estuary were analyzed experimentally using a particle entrainment simulator (PES). In the sediment resuspension experiment, concentrations of dissolved Cd, Pb and Cr in the overlying water were 0.015-0.157, 0.013-0.890 and 0.066-1.468 microg x L(-1) respectively, and concentrations of particulate Cd, Pb and Cr varied between 0.37-5.40, 8.3-137.1 and 31.6-557.7 microg x g(-1) respectively. Before the biofilm in column surface was not damaged by disturbance, a large number of Cd adsorption to biofilm was released to the overlying water during the resuspension, but after part of the biofilm was damaged with the enhanced disturbance energy, Pb and Cr were released from the sediments to overlying water in short-term. Intensity of physical disturbance was the main factor that influenced the variation of particulate heavy metal concentrations. Results of resuspension fluxes showed that Cd, Pb and Cr released to the water by resuspension were then re-adsorption to suspended particles, and gradually deposited in the bottom sediments when the hydrodynamic conditions weakened, which had less harm to the aquatic ecosystems of Yangtze Estuary. The resuspension process of Cd, Pb and Cr mainly includes the following migration and transformation process: adsorptions of heavy metals in biofilm, direct release and diffusion of dissolved heavy metals from pore water, oxidative release of sulfide associated metals in sediments, re-adsorption of heavy metals to suspended particles in overlying water and deposition of particulate heavy metals.
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Affiliation(s)
- Chun-Juan Bi
- Key Laboratory of Geographic Information Science, Ministry of Education, College of Resources and Environmental Science, East China Normal University, Shanghai 200062, China.
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Guan YG, Yu P, Yu SJ, Xu XB, Shi WH, Sun WW. Effects of pressure on the glucose–ammonium sulphite caramel solutions. Food Chem 2011; 127:596-601. [DOI: 10.1016/j.foodchem.2011.01.049] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2010] [Revised: 12/05/2010] [Accepted: 01/12/2011] [Indexed: 10/18/2022]
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Cao ZX, Zhao FR, Jia K, Sun WW, Yan MF, Guo SH, Jiao PR, Qi WB, Zhang GH. Effect of compounds on the purification and antibody preparation of the extracellular domain fragment of the receptor CD163. Virol J 2011; 8:144. [PMID: 21447173 PMCID: PMC3078855 DOI: 10.1186/1743-422x-8-144] [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: 01/21/2011] [Accepted: 03/29/2011] [Indexed: 11/29/2022] Open
Abstract
Background Porcine reproductive and respiratory syndrome virus (PRRSV) has been acknowledged as one of the most important agents affecting swine. The scavenger receptor CD163 is one of the important entry mediators for PRRSV. Results The tD4 and tD5 CD163 genes were amplified, and the PCR products were cloned into pET-28a(+) (designated pET-28a-tD4 and pET-28a-tD5, respectively). The plasmids pET-28a-tD4 and pET-28a-tD5 were then transformed into the E. coli BL21 (DE3) strain and expressed by adding 1 mmol/L of isopropyl-beta-D-thiogalactopyranoside. The proteins were highly expressed in the supernatant from the tD4- and tD5-producing cells that were incubated with a binding buffer containing the following compounds: β-mercaptoethanol, urea, Tween 20, glycerol, and SDS, while they were rarely expressed in the supernatant from the tD4- and tD5-producing cells that were incubated with binding buffer without the compounds. The tD4 and tD5 proteins were purified, and BALB/c mice were immunized with the purified proteins. Western blotting analysis showed that the tD4 and tD5 proteins were capable of reacting with tD5 antibodies; the titer of both the tD4 and tD5 antiserums was 1:160 against the tD5 protein, as shown by ELISA. Conclusions These studies provide a new way for the purification of proteins expressed in inclusion bodies and the preparation of the corresponding antibodies.
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Affiliation(s)
- Zong-Xi Cao
- Key Laboratory of Animal Disease Control and Prevention, Ministry of Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China.
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Wang YQ, Sun WW, Wang ZD, Jia QX, Gao EQ, Song Y. Solvent-modulated slow magnetic relaxation in a two-dimensional compound composed of cobalt(ii) single-chain magnets. Chem Commun (Camb) 2011; 47:6386-8. [DOI: 10.1039/c1cc12028j] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Jing XH, Sun WW, Gao EQ. Bis[3-(2-carboxyethenyl)pyridinium-1-acetato]dichloridozinc(II). Acta Crystallogr Sect E Struct Rep Online 2009; 65:m1598. [PMID: 21578626 PMCID: PMC2971957 DOI: 10.1107/s160053680904793x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2009] [Accepted: 11/12/2009] [Indexed: 11/10/2022]
Abstract
In the title complex, [ZnCl2(C10H9NO4)2], the ZnII ion lies on a twofold rotation axis and is four-coordinated by two carboxylate O atoms from two 3-(2-carboxyethenyl)pyridinium-1-acetate ligands in a monodentate mode and two Cl atoms in a distorted tetrahedral geometry. In the crystal structure, intermolecular O—H⋯O hydrogen bonds link the molecules into a double-chain structure extending parallel to [101].
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Bi CJ, Chen ZL, Shen J, Sun WW. [Transfer and release of Hg from the Yangtze Estuarine sediment during sediment resuspension event]. Huan Jing Ke Xue 2009; 30:3256-3261. [PMID: 20063737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The effect of resuspension energy and duration on release and subsequent redistribution of sediment bound Hg in Yangtze Estuary was measured experimentally using a particle entrainment simulator. Concentrations of Hg(D) (Dissolved Hg) and Hg(P) (Particulate Hg) in the overlying water were 34-268 ng x L(-1) and 25-195 microg x kg(-1) respectively, and sensitive to disturbance energy and time during sediment resuspension. There is no significant correlation between Hg(D) and Hg(P) concentration. After the first disturbance intensity experiment for 3 h, Hg was released to the overlying water in general, with Hg(D) and Hg(P) concentrations increasing from 179 ng x L(-1) to 268 ng x L(-1) and from 116 microg x kg(-1) to 139 microg x kg(-1) respectively. And then concentrations of Hg(D) and Hg(P) decreased after the overlying water was disturbed for 3 h at the second intensity, while after the third disturbance intensity experiment for 3 h, a slight increase was observed in Hg(D), and Hg(P) concentration increased from 89 microg x kg(-1) to 162 microg x kg(-1) in overlying water. The distribution coefficient (lg K(d)) of Hg in overlying water had no significant correlations with the water column pH, Eh, DO and TSS, but influenced by the combined physical and chemical conditions of the water column. In each disturbance energy treatment, both the content of suspended particles and lg K(d) for Hg increased rapidly in the overlying water in the early stage, especially the first 5 min, indicating a strong absorption of Hg on the suspended particles. After that, a decrease of the lg K(d) for Hg occurred with the time and content of suspended particles increased. It can be explained that the released Hg by oxidation of sulfide was bounded by the newly generated colloidal material such as the hydrate iron-manganese oxide. In relatively strong disturbance energy treatment, part of the coarse particles settled with time. The concentrations of Hg(P) increased in some resuspension stage in the overlying water due to the "fine particle concentration effect".
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Affiliation(s)
- Chun-Juan Bi
- Key Laboratory of Geo-information Science of the Ministry of Education, College of Resources and Environmental Science, East China Normal University, Shanghai 200062, China.
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Sun WW, Qian XB, Tian CY, Gao EQ. Synthesis, structure and ferromagnetic properties of a copper(II) coordination polymer with azide and 4-pyridylacrylate. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2008.12.016] [Citation(s) in RCA: 46] [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] [Indexed: 11/30/2022]
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Wang D, Chen Z, Sun W, Hu B, Xu S. Methane and nitrous oxide concentration and emission flux of Yangtze Delta plain river net. ACTA ACUST UNITED AC 2009. [DOI: 10.1007/s11426-009-0024-0] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Jia QX, Sun WW, Yao CF, Wu HH, Gao EQ, Liu CM. Coordination chemistry of tetrazolate-5-carboxylate with manganese(ii): synthesis, structure and magnetism. Dalton Trans 2009:2721-30. [PMID: 19333495 DOI: 10.1039/b818915c] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Qin-Xiang Jia
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai, 200062, China
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Sun WW, Tian CY, Jing XH, Wang YQ, Gao EQ. Solvent-modulated metamagnetism in a nickel(ii) coordination polymer with mixed azide and carboxylate bridges. Chem Commun (Camb) 2009:4741-3. [DOI: 10.1039/b904068d] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Tian CY, Sun WW, Jia QX, Tian H, Gao EQ. A novel manganese(II) coordination polymer with azide and neutral dicarboxylate ligands: helical structure and magnetic properties. Dalton Trans 2009:6109-13. [DOI: 10.1039/b900110g] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Liu F, Sun WW, Wang Y, Hu LQ, Dai P, Tian CF, Wang TH. Effects of electro-acupuncture on NT-4 expression in spinal dorsal root ganglion and associated segments of the spinal dorsal horn in cats subjected to adjacent dorsal root ganglionectomy. Neurosci Lett 2008; 450:158-62. [PMID: 18838104 DOI: 10.1016/j.neulet.2008.09.066] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2008] [Revised: 09/17/2008] [Accepted: 09/17/2008] [Indexed: 11/17/2022]
Abstract
It is well known that neuroplasticity occurs in the central nervous system in response to injury. Electro-acupuncture (EA) may also promote neuroplasticity. But little is known about the underlying molecular mechanisms for the beneficial effects of EA. This study investigated the effects of EA on neurotrophin-4 (NT-4) expression in L(6) spinal dorsal root ganglion (DRG) and associated segments of the spinal dorsal horn in cats subjected to unilateral removal of L(1)-L(5) and L(7)-S(2) DRG. NT-4 protein was normally present in the cytoplasm of the L(6) DRG neurons and L(3) and L(6) spinal dorsal horn neurons and glia. Adjacent ganglionectomy leads to a significant decrease in NT-4 expression in the L(6) DRG, but no change in the spinal dorsal horn. Following EA treatment a significant increase occurred in the L(6) DRG at 14 days post-operation (dpo) as well as the L(6) cord segment at 7 and 14 dpo. These findings pointed to a possible association between NT-4 expression and EA promoted spinal cord plasticity in adult cats subjected to partial ganglionectomy.
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Affiliation(s)
- Fen Liu
- Institute of Neuroscience, Kunming Medical College, Ren Ming Western Road 191, Kunming, Yunnan 650031, China
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Zhao W, Zhao Q, Liu J, Xu XY, Sun WW, Zhou X, Liu S, Wang TH. Electro-acupuncture reduces neuronal apoptosis linked to Bax and Bcl-2 expression in the spinal cords of cats subjected to partial dorsal root ganglionectomy. Neurochem Res 2008; 33:2214-21. [PMID: 18401708 DOI: 10.1007/s11064-008-9677-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [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: 12/11/2007] [Accepted: 03/13/2008] [Indexed: 02/05/2023]
Abstract
While electro-acupuncture (EA) has been well known to contribute towards neuroplasticity occurring in both the central and the peripheral nervous system after injury, the underlying mechanism remains largely unknown. This study evaluated the effects and the possible mechanism of EA on neuronal apoptosis in the spinal cords of cats subjected to the removal of L(1)-L(5) and L(7)-S(2) dorsal root ganglion, sparing the L(6) dorsal root ganglion. EA treatment decreased the number of TUNEL-positive apoptotic cells in lamina II of the L(3) and L(6) cord segments at 7 and 14 days post operation (dpo). This EA-mediated neuroprotection is associated with a decrease in the number of Bax immunoreactive neurons and an increase in the number of Bcl-2 immunoreactive neurons. Furthermore, Western blot and RT-PCR analysis revealed a significant downregulation of Bax protein and its mRNA, but an upregulation of Bcl-2 in the dorsal horn of L(3) and L(6) cords at both 7 and 14 dpo. The present findings suggest that EA could inhibit neuronal apoptosis in dorsal root deafferentated cat spinal cords, possibly by Bax downregulation and Bcl-2 upregulation.
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Affiliation(s)
- Wei Zhao
- Institute of Neurological Disease, West China Hospital, Sichuan University, Chengdu, 610041, China
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Sun WW, Yue Q, Cheng AL, Gao EQ. Supramolecular networks assembled from binuclear complexes with pyridazine-3,6-dicarboxylate. CrystEngComm 2008. [DOI: 10.1039/b805832f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Zhang JY, Cheng AL, Yue Q, Sun WW, Gao EQ. Eight coordination with bis(bidentate) bridging ligands: zeolitic topology versus square grid networks. Chem Commun (Camb) 2008:847-9. [PMID: 18253524 DOI: 10.1039/b717233h] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Jian-Yong Zhang
- Department of Chemistry, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, Shanghai, China
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Sun WW, Zhao W, Wang TH. Effects of Electro-acupuncture on PDGF Expression in Spared Dorsal Root Ganglion and Associated Dorsal Horn Subjected to Partial Dorsal Root Ganglionectomy in Cats. Neurochem Res 2007; 33:437-43. [PMID: 17712628 DOI: 10.1007/s11064-007-9451-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [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: 05/04/2007] [Accepted: 07/18/2007] [Indexed: 12/14/2022]
Abstract
The effects of electro-acupuncture (EA) on the expression of platelet derived growth factor (PDGF) in spared dorsal root ganglion (DRG) and associated dorsal horns were evaluated in cats subjected to bilateral removal of L1-L5 and L7-S2 DRG, while sparing L6 DRG and were demonstrated using Immunohistochemistry, Western blot and RT-PCR techniques. On the acupunctured side, there was a significant increase in the total number of PDGF positive neurons. Large neurons of the L6 DRG at 7 days post operation (dpo), and small to medium-sized neurons at 14 dpo, as well as in the lamina II of the L6 spinal cord at 14 dpo was observed. The expression of PDGF protein increased significantly in the L6 DRG at 7 and 14 dpo and in the dorsal horn of the L6 spinal cord at 14 dpo while the upregulation of PDGF mRNA was seen at 3 dpo in the L6 DRG and the dorsal horn of the L3 and L6 spinal cord. These findings demonstrate that intrinsic PDGF has been upregulated in cats subjected to partial dorsal root ganglionectomy following EA, indicating endogenous PDGF is involved in promoting spinal plasticity following EA.
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Affiliation(s)
- Wei-Wei Sun
- Institute of Neuroscience, Kunming Medical College, Kunming 650031, China
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Sun WW, Cheng AL, Jia QX, Gao EQ. Metal-Coordination-Directed Assembly of Binuclear Trigonal Prisms and Three-Dimensional Hydrogen-Bonded Networks. Inorg Chem 2007; 46:5471-3. [PMID: 17569531 DOI: 10.1021/ic700610p] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The coordination of pyridazine-3,6-dicarboxylate by manganese(II) leads to unusual anionic binuclear trigonal prisms, which coassemble with the hexaaquamanganese(II) antiprisms to generate a hydrogen-bonded CsCl-type three-dimensional network.
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Affiliation(s)
- Wei-Wei Sun
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai 200062, China
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Fan JB, Ma J, Li XW, Zhang CS, Sun WW, He G, Gu NF, Feng GY, St Clair D, He L. Population-based and family-based association studies of an (AC)n dinucleotide repeat in alpha-7 nicotinic receptor subunit gene and schizophrenia. Schizophr Res 2006; 84:222-7. [PMID: 16563701 DOI: 10.1016/j.schres.2006.02.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2005] [Revised: 02/03/2006] [Accepted: 02/15/2006] [Indexed: 11/20/2022]
Abstract
The human alpha-7 neuronal nicotinic receptor subunit (CHRNA7) gene, located at chromosome 15q13.2, represents a strong candidate gene for schizophrenia. We have examined an (AC)n dinucleotide repeat in intron 2 of the CHRNA7 gene, which was previously shown to be strongly linked with schizophrenia, using both population-based and family-based association studies. In the population-based study, no significant differences between the genotype and allele frequency distributions in schizophrenia patients and control subjects were observed after correction for multiple testing, although a nominally significant association between the most common allele and schizophrenia was observed (P = 0.023, uncorrected for multiple testing). In the family-based study, there is no significant over-transmission (Transmitted/Non-transmitted: 61/50) of the same allele in 160 family trios. Overall, our results do not support a major role for the (AC)n dinucleotide repeat in schizophrenia susceptibility in Han Chinese. Further large-scale genetic studies based on a set of single nucleotide polymorphisms (SNPs) that fully characterize the linkage disequilibrium patterns at the CHRNA7 gene are necessary to determine the relevance of this gene as a risk factor for schizophrenia susceptibility.
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Affiliation(s)
- Jin-Bo Fan
- Institute for Nutritional Sciences, Shanghai Institute of Biological Sciences, Chinese Academy of Sciences, 200031, China
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Fan JB, Zhang CS, Gu NF, Li XW, Sun WW, Wang HY, Feng GY, St Clair D, He L. Catechol-O-methyltransferase gene Val/Met functional polymorphism and risk of schizophrenia: a large-scale association study plus meta-analysis. Biol Psychiatry 2005; 57:139-44. [PMID: 15652872 DOI: 10.1016/j.biopsych.2004.10.018] [Citation(s) in RCA: 195] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2004] [Revised: 09/22/2004] [Accepted: 10/11/2004] [Indexed: 01/30/2023]
Abstract
BACKGROUND A common functional polymorphism (Val/Met) in the catechol-O-methyltransferase gene (COMT) that markedly affects enzyme activity has been shown to affect executive cognition and the physiology of the prefrontal cortex in humans. It is hypothesized that the high activity Val allele slightly increases risk for schizophrenia through its effect on dopamine-mediated prefrontal information processing. METHODS We compared the allele/genotype frequencies of the Val/Met polymorphism in a large independent patient-control sample (862 patient and 928 healthy control subjects) from Han Chinese population, and an update meta-analysis was performed to assess the collective evidence across individual studies. RESULTS No statistically significant differences were found in allele or genotype frequencies between patient and normal control subjects, although a nonsignificant overrepresentation of the Val allele in schizophrenia patients (odds ratio [OR] = 1.09, 95% confidence interval [CI] = .94-1.26) was suggested. Comparatively, the meta-analysis of all published population-based association studies showed statistically significant evidence for heterogeneity among the group of studies. Stratification of the studies by ethnicity of the samples yielded no significant evidence for an association with the Val allele in Asian population (OR = .96, 95% CI = .85-1.09), nor in European population (OR = 1.06, 95% CI = .95-1.19). CONCLUSIONS Our data provide minimal evidence that the Val allele is a susceptibility factor for schizophrenia in either European or Asian populations.
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Affiliation(s)
- Jin-Bo Fan
- Institute for Nutritional Sciences, SIBS, Chinese Academy of Sciences; Bio-X Life Science Research Center, Shanghai Jiao Tong University, China
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