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Na RN, Duan XY, Chen P. [Advances on aryl hydrocarbon receptor in intestinal function and diseases]. Zhonghua Nei Ke Za Zhi 2024; 63:296-302. [PMID: 38448364 DOI: 10.3760/cma.j.cn112138-20231104-00295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Affiliation(s)
- R N Na
- First Clinical College of Inner Mongolia Medical University, Hohhot 010050, China
| | - X Y Duan
- Department of Gastroenterology, the Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, China
| | - P Chen
- Department of Gastroenterology, the Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, China
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2
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Shi Z, Duan X, Wang F, Hou Z, Song F, Gu L, Qi C, Zhang Y. Maydistacins A-G, Terpestacin-type Sesterterpenoids with Anti-inflammatory Activity from the Phytopathogenic Fungus Bipolaris maydis. J Nat Prod 2024; 87:68-76. [PMID: 38117952 DOI: 10.1021/acs.jnatprod.3c00786] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
Seven undescribed terpestacin-type sesterterpenoids, maydistacins A-G (1-7), along with two known congeners (8 and 9), were isolated from the phytopathogenic fungus Bipolaris maydis collected from the leaves of Hypericum longistylum. The structures of 1-7 were elucidated based on extensive spectroscopic analysis, chemical methods, NMR calculations with DP4+ probability analysis, and comparison of experimental and calculated electronic circular dichroism (ECD) calculations. In vitro anti-inflammatory effects of these compounds were tested in lipopolysaccharide (LPS)-stimulated RAW264.7 macrophages. Compound 1 exhibited inhibition of the production of nitric oxide in LPS-induced macrophages, with an IC50 value of 19 ± 2 μM. A dexamethasone control displayed an IC50 value of 6.7 ± 0.6 μM. Compound 1 is the first terpestacin-type sesterterpenoid reported to display anti-inflammatory activity and may provide a novel chemical scaffold for the discovery of new anti-inflammatory drugs.
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Affiliation(s)
- Zhengyi Shi
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Xueyan Duan
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Fengqing Wang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Zhangrong Hou
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Fei Song
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Lianghu Gu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Changxing Qi
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Yonghui Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
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Kaw A, Wu T, Starosolski Z, Zhou Z, Pedroza AJ, Majumder S, Duan X, Kaw K, Pinelo JEE, Fischbein MP, Lorenzi PL, Tan L, Martinez SA, Mahmud I, Devkota L, Taegtmeyer H, Ghaghada KB, Marrelli SP, Kwartler CS, Milewicz DM. Augmenting Mitochondrial Respiration in Immature Smooth Muscle Cells with an ACTA2 Pathogenic Variant Mitigates Moyamoya-like Cerebrovascular Disease. Res Sq 2023:rs.3.rs-3304679. [PMID: 37886459 PMCID: PMC10602100 DOI: 10.21203/rs.3.rs-3304679/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
ACTA2 pathogenic variants altering arginine 179 cause childhood-onset strokes due to moyamoya disease (MMD)-like occlusion of the distal internal carotid arteries. A smooth muscle cell (SMC)-specific knock-in mouse model (Acta2SMC-R179C/+) inserted the mutation into 67% of aortic SMCs, whereas explanted SMCs were uniformly heterozygous. Acta2R179C/+ SMCs fail to fully differentiate and maintain stem cell-like features, including high glycolytic flux, and increasing oxidative respiration (OXPHOS) with nicotinamide riboside (NR) drives the mutant SMCs to differentiate and decreases migration. Acta2SMC-R179C/+ mice have intraluminal MMD-like occlusive lesions and strokes after carotid artery injury, whereas the similarly treated WT mice have no strokes and patent lumens. Treatment with NR prior to the carotid artery injury attenuates the strokes, MMD-like lumen occlusions, and aberrant vascular remodeling in the Acta2SMC-R179C/+ mice. These data highlight the role of immature SMCs in MMD-associated occlusive disease and demonstrate that altering SMC metabolism to drive quiescence of Acta2R179C/+ SMCs attenuates strokes and aberrant vascular remodeling in the Acta2SMC-R179C/+ mice.
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Affiliation(s)
- Anita Kaw
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, TX 77030, USA
| | - Ting Wu
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, McGovern Medical School, 6431 Fannin Street, Houston, TX 77030, USA
| | - Zbigniew Starosolski
- Department of Radiology, Baylor College of Medicine, Texas Children’s Hospital, Houston, TX 77030, USA
| | - Zhen Zhou
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, TX 77030, USA
| | - Albert J. Pedroza
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Suravi Majumder
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, TX 77030, USA
| | - Xueyan Duan
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, TX 77030, USA
| | - Kaveeta Kaw
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, TX 77030, USA
| | - Jose E. E. Pinelo
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, TX 77030, USA
| | - Michael P. Fischbein
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Philip L. Lorenzi
- Metabolomics Core Facility, Department of Bioinformatics & Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Lin Tan
- Metabolomics Core Facility, Department of Bioinformatics & Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Sara A. Martinez
- Metabolomics Core Facility, Department of Bioinformatics & Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Iqbal Mahmud
- Metabolomics Core Facility, Department of Bioinformatics & Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Laxman Devkota
- Department of Radiology, Baylor College of Medicine, Texas Children’s Hospital, Houston, TX 77030, USA
| | - Heinrich Taegtmeyer
- Division of Cardiovascular Medicine, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, TX 77030, USA
| | - Ketan B. Ghaghada
- Department of Radiology, Baylor College of Medicine, Texas Children’s Hospital, Houston, TX 77030, USA
| | - Sean P. Marrelli
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, McGovern Medical School, 6431 Fannin Street, Houston, TX 77030, USA
| | - Callie S. Kwartler
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, TX 77030, USA
| | - Dianna M. Milewicz
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, TX 77030, USA
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Guo DC, Duan X, Mimnagh K, Cecchi AC, Marin IC, Yu Y, Velasco WV, Lee K, Zhu X, Murdock DR, Leal SM, Wheeler MM, Smith J, Bamshad MJ, Milewicz DM. An FBN1 deep intronic variant is associated with pseudoexon formation and a variable Marfan phenotype in a five generation family. Clin Genet 2023; 103:704-708. [PMID: 36861389 PMCID: PMC10159920 DOI: 10.1111/cge.14322] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/09/2023] [Accepted: 02/12/2023] [Indexed: 03/03/2023]
Abstract
Exome sequencing of genes associated with heritable thoracic aortic disease (HTAD) failed to identify a pathogenic variant in a large family with Marfan syndrome (MFS). A genome-wide linkage analysis for thoracic aortic disease identified a peak at 15q21.1, and genome sequencing identified a novel deep intronic FBN1 variant that segregated with thoracic aortic disease in the family (LOD score 2.7) and was predicted to alter splicing. RT-PCR and bulk RNA sequencing of RNA harvested from fibroblasts explanted from the affected proband revealed an insertion of a pseudoexon between exons 13 and 14 of the FBN1 transcript, predicted to lead to nonsense mediated decay (NMD). Treating the fibroblasts with an NMD inhibitor, cycloheximide, greatly improved the detection of the pseudoexon-containing transcript. Family members with the FBN1 variant had later onset aortic events and fewer MFS systemic features than typical for individuals with haploinsufficiency of FBN1. Variable penetrance of the phenotype and negative genetic testing in MFS families should raise the possibility of deep intronic FBN1 variants and the need for additional molecular studies.
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Affiliation(s)
- Dong-Chuan Guo
- Department of Internal Medicine, University of Texas Health Science Center at Houston (UTHealth), Houston, Texas, USA
| | - Xueyan Duan
- Department of Internal Medicine, University of Texas Health Science Center at Houston (UTHealth), Houston, Texas, USA
| | - Kathleen Mimnagh
- Department of Internal Medicine, WVU School of Medicine-Charleston Division (Retired), Morgantown, West Virginia, USA
| | - Alana C Cecchi
- Department of Internal Medicine, University of Texas Health Science Center at Houston (UTHealth), Houston, Texas, USA
| | - Isabella C Marin
- Department of Internal Medicine, University of Texas Health Science Center at Houston (UTHealth), Houston, Texas, USA
| | - Yang Yu
- Department of Internal Medicine, University of Texas Health Science Center at Houston (UTHealth), Houston, Texas, USA
| | - Walter V Velasco
- Department of Internal Medicine, University of Texas Health Science Center at Houston (UTHealth), Houston, Texas, USA
| | - Kwanghyuk Lee
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - Xue Zhu
- Department of Internal Medicine, University of Texas Health Science Center at Houston (UTHealth), Houston, Texas, USA
| | - David R Murdock
- Department of Internal Medicine, University of Texas Health Science Center at Houston (UTHealth), Houston, Texas, USA
| | - Suzanne M Leal
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - Marsha M Wheeler
- Genome Sciences, University of Washington, Seattle, Washington, USA
| | - Josh Smith
- Genome Sciences, University of Washington, Seattle, Washington, USA
| | | | - Dianna M Milewicz
- Department of Internal Medicine, University of Texas Health Science Center at Houston (UTHealth), Houston, Texas, USA
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Kwartler CS, Pedroza AJ, Kaw A, Guan P, Ma S, Duan XY, Kernell C, Wang C, Pinelo JEE, Borthwick MS, Chen J, Zhong Y, Sinha S, Shen X, Fischbein MP, Milewicz DM. Nuclear Smooth Muscle α-actin in Vascular Smooth Muscle Cell Differentiation. Res Sq 2023:rs.3.rs-1623114. [PMID: 36909460 PMCID: PMC10002808 DOI: 10.21203/rs.3.rs-1623114/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
Missense variants throughout ACTA2, encoding smooth muscle α-actin (αSMA), predispose to adult onset thoracic aortic disease, but variants disrupting arginine 179 (R179) lead to Smooth Muscle Dysfunction Syndrome (SMDS) characterized by childhood-onset diverse vascular diseases. Our data indicate that αSMA localizes to the nucleus in wildtype (WT) smooth muscle cells (SMCs), enriches in the nucleus with SMC differentiation, and associates with chromatin remodeling complexes and SMC contractile gene promotors, and the ACTA2 p.R179 variant decreases nuclear localization of αSMA. SMCs explanted from a SMC-specific conditional knockin mouse model, Acta2SMC-R179/+, are less differentiated than WT SMCs, both in vitro and in vivo, and have global changes in chromatin accessibility. Induced pluripotent stem cells from patients with ACTA2 p.R179 variants fail to fully differentiate from neural crest cells to SMCs, and single cell transcriptomic analyses of an ACTA2 p.R179H patient's aortic tissue shows increased SMC plasticity. Thus, nuclear αSMA participates in SMC differentiation and loss of this nuclear activity occurs with ACTA2 p.R179 pathogenic variants.
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Affiliation(s)
- Callie S. Kwartler
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030
| | - Albert J. Pedroza
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA 94305
| | - Anita Kaw
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030
| | - Pujun Guan
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030
| | - Shuangtao Ma
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030
- Current address: Department Medicine, Michigan State University, East Lansing, MI 48824
| | - Xue-yan Duan
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030
| | - Caroline Kernell
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030
| | - Charis Wang
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030
| | - Jose Emiliano Esparza Pinelo
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030
| | - Mikayla S. Borthwick
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030
| | - Jiyuan Chen
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030
| | - Yuan Zhong
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Smithville, TX 78957
| | - Sanjay Sinha
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, United Kingdom
| | - Xuetong Shen
- Institute of Cancer Research, Shenzhen Bay Laboratory, Shenzhen, China
| | | | - Dianna M. Milewicz
- Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030
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Duan X, Ma J, Ning M, Gao Y. Dissolving Microneedles Loaded with Gestodene: Fabrication and Characterization In Vitro and In Vivo. Iran J Pharm Res 2023; 22:e131819. [PMID: 38116561 PMCID: PMC10728855 DOI: 10.5812/ijpr-131819] [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] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 02/25/2023] [Accepted: 04/04/2023] [Indexed: 12/21/2023]
Abstract
Background Gestodene (GEST) is widely used in female contraception. It is currently being used as an oral contraceptive. However, unfortunately, oral contraceptives are often associated with several bothersome side effects and poor compliance. Therefore, a sustained delivery system for GEST to overcome these shortcomings is highly desirable. Objectives The present study successfully developed a kind of novel dissolving microneedles (DMNs) with a potential for sustained release and a minimally invasive intradermal treatment of GEST. Methods The dissolving microneedles containing GEST were fabricated using polyvinylpyrrolidone as the base material. The characteristics in vitro and pharmacokinetics in vivo of GEST-loaded DMNs were investigated. Results The results showed that the microneedle could pierce the porcine skin and release the drug at an average dose of 20µg/cm2 daily for seven days. The pharmacokinetic experiment of the microneedles indicated that the plasma level of GEST in rats increased with increasing drug dosage, and the plasma drug concentration-time curves were much flatter compared with subcutaneous injection and oral administration. In addition, no cutaneous irritation was observed. Conclusions GEST-loaded DMNs may be a promising intradermal sustained delivery system for contraceptive use.
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Affiliation(s)
- Xueyan Duan
- Center of Drug and Medical Polymer Materials, National Research Institute for Family Planning, Beijing, China
| | - Jianan Ma
- Center of Drug and Medical Polymer Materials, National Research Institute for Family Planning, Beijing, China
| | - Meiying Ning
- Center of Drug and Medical Polymer Materials, National Research Institute for Family Planning, Beijing, China
| | - Yunhua Gao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China
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Duan X, Ma W, Jiao Z, Tian Y, Ismail RG, Zhou T, Fan Z. Reverse transcription-recombinase-aided amplification and CRISPR/Cas12a-based visual detection of maize chlorotic mottle virus. Phytopathol Res 2022; 4:23. [PMID: 35757182 PMCID: PMC9207886 DOI: 10.1186/s42483-022-00128-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 06/06/2022] [Indexed: 06/15/2023]
Abstract
Maize chlorotic mottle virus (MCMV) is one of the important quarantine pathogens in China. It often co-infects with one or two viruses in the family Potyviridae and causes maize lethal necrosis disease. Therefore, an accurate and sensitive method for the detection of MCMV is urgently needed. Combined with reverse transcription and recombinase-aided amplification, we developed a CRISPR/Cas12a-based visual nucleic acid detection system targeting the MCMV coat protein gene. The whole process can be completed within 45 min with high sensitivity. This system could detect cDNAs diluted up to 10-5 when 2000 ng of total RNA was used for reverse transcription. The Cas12a/crRNA complex designed for MCMV detection could recognize and cleave the targeted double-stranded DNA, and ultimately cleave the single-stranded DNA probes and produce fluorescent signals. The green fluorescence produced under blue light (440-460 nm) in this procedure could be observed by the naked eye. Since this novel method is specific, rapid, sensitive and does not require special instruments and technical expertise, it should be suitable for on-site visual detection of MCMV in seeds, plants of maize and potentially in its insect vectors.
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Affiliation(s)
- Xueyan Duan
- State Key Laboratory of Agrobiotechnology, MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, 100193 China
- Sanya Institute of China Agricultural University, Building 8, Yongyou Industrial Park, Yazhou Bay Science and Technology City, Yazhou District, Sanya, 572025 Hainan China
| | - Wendi Ma
- State Key Laboratory of Agrobiotechnology, MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, 100193 China
| | - Zhiyuan Jiao
- State Key Laboratory of Agrobiotechnology, MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, 100193 China
- Sanya Institute of China Agricultural University, Building 8, Yongyou Industrial Park, Yazhou Bay Science and Technology City, Yazhou District, Sanya, 572025 Hainan China
| | - Yiying Tian
- State Key Laboratory of Agrobiotechnology, MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, 100193 China
- Sanya Institute of China Agricultural University, Building 8, Yongyou Industrial Park, Yazhou Bay Science and Technology City, Yazhou District, Sanya, 572025 Hainan China
| | - Ragab Gomaa Ismail
- State Key Laboratory of Agrobiotechnology, MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, 100193 China
- Department of Plant Pathology, College of Agriculture, Alexandria University, El-Shatby, Alexandria, 21545 Egypt
| | - Tao Zhou
- State Key Laboratory of Agrobiotechnology, MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, 100193 China
- Sanya Institute of China Agricultural University, Building 8, Yongyou Industrial Park, Yazhou Bay Science and Technology City, Yazhou District, Sanya, 572025 Hainan China
| | - Zaifeng Fan
- State Key Laboratory of Agrobiotechnology, MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, 100193 China
- Sanya Institute of China Agricultural University, Building 8, Yongyou Industrial Park, Yazhou Bay Science and Technology City, Yazhou District, Sanya, 572025 Hainan China
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Cao YX, Ge QW, Li M, Qi ZG, Gu YJ, Zheng HY, Qin G, Huang H, Duan XY, Zhuang X. [Evaluation of the effect of comprehensive prevention and management of diabetes mellitus of two cross-sectional surveys based on community population]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:614-618. [PMID: 35644976 DOI: 10.3760/cma.j.cn112150-20210906-00872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
To investigate the prevalence of diabetes mellitus (DM) among residents in Chongchuan district, Nantong city in 2012 and 2018, and evaluate the effectiveness of community comprehensive management of DM. Based on the data of 17 780 and 13 382 residents in the cross-sectional surveys of the " National Demonstration Area for Comprehensive Prevention and Control of Chronic Diseases " project in Chongchuan District of Nantong City, Jiangsu Province in 2012 and 2018, 4 583 and 3 996 DM-related information were obtained. The population of Jiangsu Province in 2012 and 2018 was used as the reference for standardization. The rates of prevalence and management (including awareness, treatment, treatment of patients who knew their diabetic situation, control and control of patients under treatment) of DM in the two surveys were compared using chi-square test. The results showed that in 2012 and 2018, the prevalence rates of DM were 12.0% and 15.7% (χ²=24.25, P<0.05), and the standardized rates were 10.1% and 10.8% (χ²=1.05, P=0.306). The incidence rates were 5.7% and 2.3%, respectively (χ²=55.60, P<0.05). The standardized prevalence rates in the two surveys were 9.7% and 11.6% for males (χ²=3.66, P=0.056) and 10.5% and 9.9% for females (χ²=0.50, P=0.481), 7.2% and 6.5% (χ²=0.85, P=0.357) for people aged 18-59 years old and 20.6% and 21.9% (χ²=0.91, P=0.339) for people aged 60 years and over, respectively. The standardized rates of awareness, treatment, treatment of patients who knew their diabetic situation, control, and control of patients under treatment in 2018 were 84.4%, 80.3%, 95.2%, 58.4%, and 70.2%, respectively, higher than 47.2%, 23.4%, 44.8%, 30.4% and 59.4% in 2012 (χ²=183.33, χ²=380.65, χ²=282.99, χ²=93.24, χ²=6.22, all P<0.05). Among men, the standardized rates of awareness, treatment, treatment of patients who knew their diabetic situation, and control in 2018 were 85.8%, 78.8%, 91.8% and 62.7%, higher than 50.5%, 37.5%, 72.3% and 32.6% in 2012 (χ²=78.40, χ²=96.17, χ²=27.55, χ²=48.96, all P<0.05). Similarly, the standardized management rates in 2018 were 83.0%, 81.7%, 98.5%, 54.1% and 65.1%, higher than 44.0%, 10.0%, 18.3%, 28.2% and 48.8% in 2012 among women (χ²=105.52, χ²=326.36, χ²=317.22, χ²=43.34, χ²=3.87, all P<0.05). The standardized rates of awareness, treatment, treatment of patients who knew their diabetic situation, and control of people aged 18-59 and 60 years and over were 82.9%, 79.7%, 96.1%, 55.0% and 88.0%, 81.8%, 93.0% and 67.2%, higher than 42.6%, 19.8%, 42.2%, 27.5% and 63.9%, 36.8%, 53.9%, 40.8% in 2012 (χ²=44.51, χ²=102.17, χ²=57.78, χ²=21.65, all P<0.05; χ²=71.18, χ²=181.55, χ²=146.26, χ²=59.23, all P<0.05). The comprehensive prevention and control system of chronic diseases, which comprehensively covered the life of community residents, had good management effect on DM, and effectively promoted health education and health promotion.
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Affiliation(s)
- Y X Cao
- Department of Epidemiology and Health Statistics, School of Public Health, Nantong University, Nantong 226019, China
| | - Q W Ge
- Department of Epidemiology and Health Statistics, School of Public Health, Nantong University, Nantong 226019, China
| | - M Li
- Department of Epidemiology and Health Statistics, School of Public Health, Nantong University, Nantong 226019, China
| | - Z G Qi
- Department of Chronic Disease Prevention and Control, Chongchuan District Center for Disease Control and Prevention of Nantong City, Nantong 226001, China
| | - Y J Gu
- Department of Endocrinology, Affiliated Hospital of Nantong University, Nantong 226006, China
| | - H Y Zheng
- Department of Chronic Disease Prevention and Control, Chongchuan District Center for Disease Control and Prevention of Nantong City, Nantong 226001, China
| | - G Qin
- Department of Epidemiology and Health Statistics, School of Public Health, Nantong University, Nantong 226019, China
| | - H Huang
- Department of Epidemiology and Health Statistics, School of Public Health, Nantong University, Nantong 226019, China
| | - X Y Duan
- Department of Epidemiology and Health Statistics, School of Public Health, Nantong University, Nantong 226019, China
| | - X Zhuang
- Department of Epidemiology and Health Statistics, School of Public Health, Nantong University, Nantong 226019, China
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Huang RX, Duan XY, Liu XL, Cao HX, Wang YQ, Fan JG, Wang BC. [Role and mechanism of miRNA-181a in nonalcoholic fatty liver disease]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:1177-1181. [PMID: 35045633 DOI: 10.3760/cma.j.cn501113-20200527-00279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the role and probable mechanism of miRNA-181a in nonalcoholic fatty liver disease. Methods: HepG2 cells were treated with palmitic acid to construct a nonalcoholic fatty liver disease cell model, and the expression of miR-181a and lipidosis in the cells were measured. Transforming growth factor-β (TGF-β) was used to examine the effect of miR-181a expression in HepG2 cells. The miR-181a, lipidosis, reduced glutathione and reactive oxygen species (ROS) were determined by controlling and regulating the miR-183 expression levels after transfection with miR-181 mimics and inhibitors in HepG2 cells. The miR-181a target genes were predicted by bioinformatics analysis, and verified by real-time fluorescent quantitative PCR and western blotting. The independent sample t-test was used for the comparison between the two independent samples, and the comparison between multiple groups were accorded with the normal distribution, homogeneity of variance, and one-way analysis of variance. Results: Lipidosis was significantly increased after palmitic acid treatment in HepG2 cells, and the expression level of miR-181a was significantly increased than control group. After HepG2 cells were transfected with miR-181a inhibitors, the expression of miR-181a, triglycerides and reactive oxygen species were down-regulated, and reduced glutathione, predicting the mRNA and protein expression of target gene silencing information regulator 2 related enzyme 1 were up-regulated. However, the results were contrary to the above changes after transfection with miR-181a mimics. Conclusion: miR-181a participates in lipidosis and promotes lipid peroxidation in nonalcoholic fatty liver disease. miR-181a may affect the pathogenesis and progression of nonalcoholic fatty liver disease by inhibiting the expression of silencing information regulator 2 related enzyme 1.
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Affiliation(s)
- R X Huang
- Department of Gastroenterology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - X Y Duan
- Department of Gastroenterology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - X L Liu
- Department of Gastroenterology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - H X Cao
- Department of Gastroenterology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Y Q Wang
- Department of Gastroenterology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - J G Fan
- Department of Gastroenterology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - B C Wang
- Department of Gastroenterology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
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Kwartler C, Duan XY, Ma S, Kaw A, Kernell C, Wang C, Chen J, Shen X, Milewicz DM. Abstract P174: Nuclear Smooth Muscle α-actin Is Critical For Smooth Muscle Cell Differentiation And To Prevent Cerebrovascular Disease. Arterioscler Thromb Vasc Biol 2021. [DOI: 10.1161/atvb.41.suppl_1.p174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Missense mutations in ACTA2, encoding α-smooth muscle actin (α-SMA), predispose to thoracic aortic aneurysms. A subset of these ACTA2 mutations also predispose to childhood onset cerebrovascular disease characterized by occlusion of the distal internal carotid arteries and small vessel disease. In our studies to identify how specific ACTA2 mutations predispose to cerebrovascular disease, we confirmed that α-SMA translocates to the nucleus in wildtype (WT) smooth muscle cells (SMCs), is enriched in the nucleus over β-actin with differentiation of SMCs, associates with the INO80 chromatin remodeling complex, and selectively binds to the promoters of SMC contractile genes. Expression of individual mutant α-SMAs in 293 cells determined that missense mutations associated with cerebrovascular disease inhibit this nuclear translocation. To further examine the effects of reduced nuclear α-SMA with ACTA2 mutations, we used two model systems: pluripotent stem cell-derived SMCs from patients with ACTA2-associated cerebrovascular disease (ACTA2 R179C) as well as SMCs explanted from a knockin mouse model (Acta2SMC-R179C/+). Both mouse and human cells harboring the R179C mutation proliferate and migrate more than WT SMCs, are less differentiated than WT SMCs, and have increased expression of pluripotency-associated genes. Although the mutation is heterozygous, these cells show a dominant negative impact on nuclear α-SMA function through dramatically reduced levels of α-SMA in the nucleus, in the INO80 chromatin remodeling complex, and on the promoters of SMC-specific genes. Finally, forced nuclear localization of α-SMA in WT SMCs increases levels of SMC contractile proteins. Taken together, we have identified a novel role for α-SMA in driving differentiation of SMCs, and our data supports that defects in this nuclear role drive cellular phenotypes consistent with the cerebrovascular disease seen in patients with ACTA2 R179 mutations.
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Yin D, Qiu M, Wei X, Duan X. Meta-analyzing the factors affecting the efficacy of gliflozins in patients with heart failure based on heart failure trials. Medicine (Baltimore) 2021; 100:e26561. [PMID: 34260534 PMCID: PMC8284750 DOI: 10.1097/md.0000000000026561] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Accepted: 06/12/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND The factors affecting the efficacy of gliflozins in patients with heart failure (HF) are not clear. We aimed to evaluate the effects of 11 important factors on the efficacy of gliflozins in HF patients. METHODS Randomized trials assessing gliflozins in HF patients were included. The outcome of interest was composite HF outcome, a composite of cardiovascular death, or hospitalization for HF. Meta-analysis was done according to 11 factors: status of type 2 diabetes, sex, use of angiotensin receptor-neprilysin inhibitor, age, history of hospitalization for HF, estimated glomerular filtration rate, body mass index, New York Heart Association (NYHA) class, race, region, and left ventricular ejection fraction. RESULTS Compared with placebo, gliflozins reduced the risk of composite HF outcome by 14% in the subgroup of patients with NYHA class III or IV (hazard ratios [HR] 0.86, 95% confidence intervals [CI] 0.75-0.99), by 34% in the subgroup of patients with NYHA class II (HR 0.66, 95% CI 0.59-0.74), and by 85% in the subgroup of patients with NYHA class I (HR 0.15, 95% CI 0.03-0.73). This between-group difference was approximate to statistical significance (Psubgroup = .06). The benefit of gliflozins in HF patients was not affected by the other 10 factors (Psubgroup ≥ .123). CONCLUSIONS Gliflozins are applicable for a broad population of HF patients as for preventing HF events, while gliflozins may lead to greater benefits in patients with mild HF than in those with moderate to severe HF.
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Affiliation(s)
- Daogen Yin
- Department of General Medicine, Shenzhen Longhua District Central Hospital, Shenzhen, China
| | - Mei Qiu
- Department of General Medicine, Shenzhen Longhua District Central Hospital, Shenzhen, China
| | - Xubin Wei
- Department of Cardiology, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xueyan Duan
- Department of General Medicine, Shenzhen Longhua District Central Hospital, Shenzhen, China
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12
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Duan XY, Lu SR, Yan GQ, Qiu R, Liu MW. Diagnosis and treatment of two patients with novel coronavirus pneumonia combined with acute stress disorder. J BIOL REG HOMEOS AG 2021; 34:2305-2310. [PMID: 33300751 DOI: 10.23812/20-562-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- X Y Duan
- Department of Tuberculosis Diseases, Changpo Hospital of Third People's Hospital of Kunming City, Taiping Town, Anning City, China
| | - S R Lu
- Department of Respiratory and Critical Care, Third People's Hospital of Kunming City, Guandu District, Kunming, China
| | - G Q Yan
- Department of Science and Education, First Affiliated Hospital of Kunming Medical University, Wuhua District, Kunming, China
| | - R Qiu
- Department of Respiratory and Critical Care, Suining Central Hospital, Chuanshan District, Suining, China
| | - M W Liu
- Department of Emergency Medicine, First Affiliated Hospital of Kunming Medical University, Wuhua District, Kunming, China
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13
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Duan X, Tan X, Gu L, Liu J, Hao X, Tao L, Feng H, Cao Y, Shi Z, Duan Y, Deng M, Chen G, Qi C, Zhang Y. New secondary metabolites with immunosuppressive activity from the phytopathogenic fungus Bipolaris maydis. Bioorg Chem 2020; 99:103816. [DOI: 10.1016/j.bioorg.2020.103816] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 02/27/2020] [Accepted: 04/02/2020] [Indexed: 11/28/2022]
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14
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Duan X, Zhao M, Li X, Gao L, Cao H, Wang Y, Zheng SJ. gga-miR-27b-3p enhances type I interferon expression and suppresses infectious bursal disease virus replication via targeting cellular suppressors of cytokine signaling 3 and 6 (SOCS3 and 6). Virus Res 2020; 281:197910. [PMID: 32126296 DOI: 10.1016/j.virusres.2020.197910] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [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: 01/20/2020] [Revised: 02/28/2020] [Accepted: 02/28/2020] [Indexed: 01/03/2023]
Abstract
MicroRNAs are small noncoding RNAs playing an important role in host response to pathogenic infection. Here we show that IBDV infection induced the demethylation of the pre-miR-27 promoter and upregulated gga-miR-27b-3p expression. We found that ectopic expression of miR-27b-3p in DF-1 cells enhanced the expression of chicken IFN-β, IRF3 and NF-κB, via directly targeting cellular suppressors of cytokine signaling 3 and 6 (SOCS3 and 6), inhibiting IBDV replication in host cells, while inhibition of endogenous miR-27b-3p by its inhibitors suppressed the expression of IFN-β, IRF3 and NF-κB, enhancing SOCS3 and 6 expressions and facilitating IBDV replication. Furthermore, transfection of DF-1 cells with miR-27b-3p markedly increased phosphorylation of STAT1 on Tyr701 in cells post chIFN-γ treatment. On the contrary, inhibition of endogenous miR-27b-3p reduced phosphorylation of STAT1 on Tyr701 in cells with chIFN-γ treatment. These findings indicate that gga-miR-27b-3p serves as an inducible antiviral mediator in host response to IBDV infection.
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Affiliation(s)
- Xueyan Duan
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China; College of Veterinary Medicine, China Agricultural University, Beijing, 100193, China
| | - Mingliang Zhao
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China; College of Veterinary Medicine, China Agricultural University, Beijing, 100193, China
| | - Xiaoqi Li
- College of Veterinary Medicine, China Agricultural University, Beijing, 100193, China
| | - Li Gao
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China; College of Veterinary Medicine, China Agricultural University, Beijing, 100193, China
| | - Hong Cao
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China; College of Veterinary Medicine, China Agricultural University, Beijing, 100193, China
| | - Yongqiang Wang
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China; College of Veterinary Medicine, China Agricultural University, Beijing, 100193, China.
| | - Shijun J Zheng
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China; College of Veterinary Medicine, China Agricultural University, Beijing, 100193, China.
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15
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Zhao M, Duan X, Wang Y, Gao L, Cao H, Li X, Zheng SJ. A Novel Role for PX, a Structural Protein of Fowl Adenovirus Serotype 4 (FAdV4), as an Apoptosis-Inducer in Leghorn Male Hepatocellular Cell. Viruses 2020; 12:E228. [PMID: 32085479 PMCID: PMC7077197 DOI: 10.3390/v12020228] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/16/2020] [Accepted: 02/16/2020] [Indexed: 02/06/2023] Open
Abstract
Hydropericardium-Hepatitis Syndrome (HHS) caused by Fowl Adenovirus Serotype 4 (FAdV4) infection is a severe threat to the poultry industry worldwide, especially in China since 2015. Recent studies show that FAdV4 induces liver injury through apoptosis. However, the underlying molecular mechanism is still unclear. We report here that FAdV4 infection caused apoptosis in Leghorn male hepatocellular (LMH) cells and that PX, a structural protein of FAdV4, acted as a major viral factor inducing apoptosis. Furthermore, the nuclear localization of PX is determined by the R/K regions of PX and required for PX-induced apoptosis. Moreover, alanines 11 and 129 of PX are crucial to PX-induced apoptosis. Inhibition of FAdV4-induced apoptosis by caspase inhibitors retarded viral replication, suggesting that PX serves as a virulence factor for FAdV4 infection, which may further our understandings of the pathogenesis of FAdV4 infection.
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Affiliation(s)
- Mingliang Zhao
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (M.Z.); (X.D.); (Y.W.); (L.G.); (H.C.)
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Xueyan Duan
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (M.Z.); (X.D.); (Y.W.); (L.G.); (H.C.)
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Yongqiang Wang
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (M.Z.); (X.D.); (Y.W.); (L.G.); (H.C.)
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Li Gao
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (M.Z.); (X.D.); (Y.W.); (L.G.); (H.C.)
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Hong Cao
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (M.Z.); (X.D.); (Y.W.); (L.G.); (H.C.)
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Xiaoqi Li
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Shijun J. Zheng
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (M.Z.); (X.D.); (Y.W.); (L.G.); (H.C.)
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
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16
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Wang F, Wei M, Duan X, Liu X, Yao S, Wang J, Zhu H, Chen C, Gu L, Zhang Y. Identification, synthesis and biological evaluation of pyrazine ring compounds from Talaromyces minioluteus ( Penicillium minioluteum). Org Chem Front 2020. [DOI: 10.1039/d0qo01030h] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three new pyrazine derivatives, named talaropyrazines A–C (1–3), were isolated from the chemical investigation of the fungus Talaromyces minioluteus.
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Guo Y, Zhang N, Duan X, Cao Y, Xue Y, Luo Z, Zhu H, Chen C, Wang J, Zhang Y. Hyperforatins L-U: Prenylated acylphloroglucinols with a terminal double bond from Hypericum perforatum L. (St John's Wort). Phytochemistry 2019; 164:41-49. [PMID: 31078778 DOI: 10.1016/j.phytochem.2019.04.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 11/28/2018] [Revised: 04/22/2019] [Accepted: 04/22/2019] [Indexed: 06/09/2023]
Abstract
Hyperforatins L-U, ten undescribed polycyclic polyprenylated acylphloroglucinols (PPAPs) bearing a terminal double bond, together with a known compound hypericumoxide J, were isolated from the aerial parts of Hypericum perforatum L. Their structures were elucidated by spectroscopic methods, including HRESIMS, IR, UV, and NMR (1H, 13C, DEPT, HSQC, HMBC, 1H-1H COSY, and NOESY experiments). Their absolute configurations were determined by comprehensive analyses of their experimental ECD spectra in conjunction with a modified Mosher's method. Evaluation of their neuroprotective activities highlighted hyperforatin L, which displayed mild activity at a concentration of 10 μM.
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Affiliation(s)
- Yi Guo
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, People's Republic of China
| | - Na Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, People's Republic of China
| | - Xueyan Duan
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, People's Republic of China
| | - Yunfang Cao
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, People's Republic of China
| | - Yongbo Xue
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, People's Republic of China; School of Pharmaceutical Sciences (Shenzhen), Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China.
| | - Zengwei Luo
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, People's Republic of China
| | - Hucheng Zhu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, People's Republic of China
| | - Chunmei Chen
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, People's Republic of China
| | - Jianping Wang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, People's Republic of China
| | - Yonghui Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, People's Republic of China.
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18
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Gao J, Zhao M, Duan X, Wang Y, Cao H, Li X, Zheng SJ. Requirement of Cellular Protein CCT7 for the Replication of Fowl Adenovirus Serotype 4 (FAdV-4) in Leghorn Male Hepatocellular Cells Via Interaction with the Viral Hexon Protein. Viruses 2019; 11:v11020107. [PMID: 30691230 PMCID: PMC6410038 DOI: 10.3390/v11020107] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 01/22/2019] [Accepted: 01/25/2019] [Indexed: 11/16/2022] Open
Abstract
Fowl adenovirus serotype 4 (FAdV-4) causes hepatitis-hydropericardium syndrome (HHS), leading to severe economic losses in the poultry industry. Although the pathogenesis of FAdV-4 infection has caused much attention, the underlying molecular mechanisms remain poorly understood. Here, we identified chaperonin containing TCP-1 subunit eta (CCT7) as an interacting partner of the FAdV-4 capsid protein hexon. We found that ectopic expression of CCT7 in leghorn male hepatocellular (LMH) cells enhanced hexon expression in pRK5-flag-hexon transfected cells. On the contrary, knockdown of cellular CCT7 by RNAi markedly reduced hexon expression in FAdV-4-infected cells and suppressed viral replication. These data suggest that CCT7 is required for FAdV-4 replication and may serve as a potential target for controlling FAdV-4 infection.
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Affiliation(s)
- Junfeng Gao
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing 100193, China.
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
| | - Mingliang Zhao
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing 100193, China.
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
| | - Xueyan Duan
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing 100193, China.
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
| | - Yongqiang Wang
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing 100193, China.
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
| | - Hong Cao
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing 100193, China.
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
| | - Xiaoqi Li
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing 100193, China.
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
| | - Shijun J Zheng
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing 100193, China.
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
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Yang H, Young D, Gao J, Yuan Y, Shen M, Zhang Y, Duan X, Zhu S, Sun X. Are blood lipids associated with microvascular complications among type 2 diabetes mellitus patients? A cross-sectional study in Shanghai, China. Lipids Health Dis 2019; 18:18. [PMID: 30658647 PMCID: PMC6339385 DOI: 10.1186/s12944-019-0970-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 01/08/2019] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Although there are several studies to investigate the association between blood lipids and microvascular complications, these studies reported conflicting results. The aim of the current study was to explore the association between blood lipid parameters and the risk of microvascular complications, especially the dose-response association between them, among community patients with type 2 diabetes mellitus (T2DM) in Shanghai, China. METHODS The cross-sectional study was conducted in 6 community health service centers in Shanghai between December 2014 and December 2016.The associations between blood lipids and diabetic kidney disease (DKD) or diabetic retinopathy (DR) were assessed using multiple logistic regression. Restricted cubic spline (RCS) was employed to estimate the dose-response relation of blood lipids and the risk of microvascular complications. RESULTS A total of 3698 participants were included in the final analysis to study the association between blood lipids and DKD, wherein 33.2% of participants had DKD and 1374 were included for the analysis of the association between blood lipids and DR, wherein 23.2% of participants had DR. DKD odds ratio was increased by 1.16(95%CI,1.08-1.25), 1.21(95%CI,1.13-1.30), 1.18(95%CI,1.10-1.26) for comparing fourth to first quartiles of triglycerides (TG), TG/high-density lipoprotein cholesterol (HDL-C), non-HDL-C/HDL-C, respectively, and decreased by 0.83(95%CI,0.78-0.89) for comparing fourth to first quartiles of HDL-C. Furthermore, the dose-response association between TG, HDL-C, TG/HDL-C, non-HDL-C/HDL-C and the risk of DKD demonstrated turning points in TG of 1.90 mmol/L, HDL-C of 1.62 mmol/L, TG/HDL-C of 2.00, non-HDL-C/HDL-C of 3.09, respectively. However, no significant association was found between blood lipid parameters and DR. CONCLUSIONS This community-based study indicated that TG, HDL-C, TG/HDL-C, non-HDL-C/HDL-C were independently associated with DKD but not DR.
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Affiliation(s)
- Hua Yang
- Department of General Practice, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Doris Young
- Department of General Practice, University of Melbourne, Carlton, Melbourne, VIC Australia
| | - Jian Gao
- Department of Nutrition, Zhongshan Hospital of Fudan University, Center of Clinical Epidemiology and Evidence-based Medicine, Fudan University, Shanghai, China
| | - Yuanzhi Yuan
- Department of Ophthalmology, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Minqian Shen
- Department of Ophthalmology, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Yuan Zhang
- Department of Ophthalmology, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Xueyan Duan
- Department of General Practice, Shenzhen Longhua District Central Hospital, Shenzhen, Guangdong China
| | - Shanzhu Zhu
- Department of General Practice, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Xiaoming Sun
- Pudong Institute for Health Development, Shanghai, China
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Guo Y, Tong Q, Zhang N, Duan X, Cao Y, Zhu H, Xie S, Yang J, Zhang J, Liu Y, Xue Y, Zhang Y. Highly functionalized cyclohexanone-monocyclic polyprenylated acylphloroglucinols from Hypericum perforatum induce leukemia cell apoptosis. Org Chem Front 2019. [DOI: 10.1039/c8qo01268g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Five degraded C-MPAP derivatives were isolated from the stems and leaves of Hypericum perforatum.
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Gao J, Duan X, Li X, Cao H, Wang Y, Zheng SJ. Emerging of a highly pathogenic and multi-drug resistant strain of Escherichia coli causing an outbreak of colibacillosis in chickens. Infect Genet Evol 2018; 65:392-398. [PMID: 30157463 DOI: 10.1016/j.meegid.2018.08.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 08/08/2018] [Accepted: 08/24/2018] [Indexed: 10/28/2022]
Abstract
Extraintestinal pathogenic Escherichia coli (ExPEC) are important human pathogens responsible for urinary tract infection and meningitis. Therefore, infection of chickens by highly pathogenic E. coli with multi-drug resistance has become a major concern to food safety. In this study, we isolated a strain of E. coli (HB2016) from the oviduct of a diseased chicken with colibacillosis. Inoculation of chickens with 2 × 106 CFU of the isolate E. coli HB2016 by intraperitoneal injection successfully reproduced colibacillosis in chickens. We also found that E. coli HB2016 harbored four more virulence genes (tsh, trat, cvaC and cvaA/B) than E. coli reference strain CVCC1428. Importantly, E. coli HB2016 was resistant to cefuroxime, tobramycin, medemycin, cefazolin, cefoperazone, streptomycin and ampicillin, and carried multiple antibiotic resistance genes such as strA, strB, blaCMY-2, blaCTX-M-19, blaTEM-1B, fosA, mph(A), floR, sul2, tet(A) and tet(B). These findings suggest that the causative E. coli act as a potential zoonotic agent affecting human health.
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Affiliation(s)
- Junfeng Gao
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, China; Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing 100193, China; College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Xueyan Duan
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, China; Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing 100193, China; College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Xiaoqi Li
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, China; Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing 100193, China; College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Hong Cao
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, China; Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing 100193, China; College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Yongqiang Wang
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, China; Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing 100193, China; College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
| | - Shijun J Zheng
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, China; Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing 100193, China; College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
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Qiao Y, Liu Y, Duan X, Chen C, Liu J, Zhu H, Xue Y, Zhang Y. A pair of epimeric cassane-type diterpenoids and a new labdane-type derivative from Caesalpinia decapetala. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.05.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Wu J, Duan XY, Zhu QG. Analysis of quality nursing of postoperative incision infection in urological patients. J BIOL REG HOMEOS AG 2018; 32:127-132. [PMID: 29504376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
To study the effect of quality nursing on postoperative incision infection in urological patients, 200 subjects admitted to our hospital between June 2016 and June 2017 were included in this study and divided into a quality nursing group (group A) and a general nursing group (group B), 100 in each group. Blood loss, blood transfusion, hospital stay, incision healing, incision infection, and self-rating depression scale (SDS) scores in both groups were compared. It was found that the bleeding volume in group A was significantly less than that in group B, and there was significant difference between the two groups (P less than 0.05) while the difference in blood transfusion rate and hospital stay between the two groups was not significant (P> 0.05); the number of patients of level 1 healing in group A was larger than that of group B while the number of patients of level 2 and level 3 healing was smaller than that of group B, with significant differences (P less than 0.05); the number of infection cases in group A was significantly lower than that in group B, and the difference was significant (P less than 0.05); the SDS score of group A was lower than that of group B, with significant differences (P less than 0.05). Therefore, quality nursing had a certain effect on the infection of postoperative incision of urological patients, which had positive significance for incision healing. Reducing the effect of bacterial infections in operated patients is important for rapid healing and patient health. Using a long-lasting antibacterial can protect the patient and reduce the incidence of other infections.
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Affiliation(s)
- J Wu
- Department of Urology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - X Y Duan
- Department of Urology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Q G Zhu
- Department of Urology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
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Guo Y, Zhang N, Sun W, Duan X, Zhang Q, Zhou Q, Chen C, Zhu H, Luo Z, Liu J, Li XN, Xue Y, Zhang Y. Bioactive polycyclic polyprenylated acylphloroglucinols from Hypericum perforatum. Org Biomol Chem 2018; 16:8130-8143. [DOI: 10.1039/c8ob02067a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Fifteen new polycyclic polyprenylated acylphloroglucinols with dual-targeted inhibitory activities for Alzheimer's disease, were isolated from Hypericum perforatum.
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25
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Wang B, Duan X, Fu M, Liu Y, Wang Y, Li X, Cao H, Zheng SJ. The association of ribosomal protein L18 (RPL18) with infectious bursal disease virus viral protein VP3 enhances viral replication. Virus Res 2017; 245:69-79. [PMID: 29273342 DOI: 10.1016/j.virusres.2017.12.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 12/14/2017] [Accepted: 12/18/2017] [Indexed: 11/26/2022]
Abstract
Infectious bursal disease (IBD) is an acute, highly contagious, and immunosuppressive avian disease caused by IBD virus (IBDV). IBDV VP3 is a multifunctional protein playing a key role in virus assembly and pathogenesis. To investigate the role of VP3 in pathogenesis, we transfected DF-1 cells with pRK5-FLAG-vp3 and found that VP3 enhanced type I interferon expression and suppressed IBDV replication. Furthermore we found that VP3 interacted with chicken Ribosomal Protein L18 (chRPL18) in host cells and knockdown of chRPL18 by RNAi significantly promoted Type I interferon expression and inhibited IBDV replication. Moreover, our data show that chicken double-stranded RNA-activated protein kinase (chPKR) interacted with both VP3 and chRPL18. Thus chRPL18 in association with VP3 and chPKR affects viral replication.
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Affiliation(s)
- Bin Wang
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, China; Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing 100193, China; College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Xueyan Duan
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, China; Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing 100193, China; College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Mengjiao Fu
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, China; Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing 100193, China; College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Yanan Liu
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, China; Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing 100193, China; College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Yongqiang Wang
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, China; Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing 100193, China; College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Xiaoqi Li
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, China; Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing 100193, China; College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Hong Cao
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, China; Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing 100193, China; College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Shijun J Zheng
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, China; Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing 100193, China; College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
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Lin X, Duan X, Liang YY, Su Y, Wrighton KH, Long J, Hu M, Davis CM, Wang J, Brunicardi FC, Shi Y, Chen YG, Meng A, Feng XH. PPM1A Functions as a Smad Phosphatase to Terminate TGFβ Signaling. Cell 2016; 166:1597. [PMID: 27610577 DOI: 10.1016/j.cell.2016.08.062] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Shi J, Li LH, Duan XY, Liu Q, Sun LL, Tian YT. Gly71Arg UGT1A1 polymorphism is associated with breast cancer susceptibility in Han Chinese women. Genet Mol Res 2016; 15:gmr8332. [PMID: 27525948 DOI: 10.4238/gmr.15038332] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Breast cancer is among the most common causes of cancer-related death in women worldwide. Previous studies have demonstrated an association between prolonged estrogen exposure and increased risk of breast cancer. Uridine 5'-diphospho-glucuronosyltransferase 1-1 (UGT1A1) plays a significant role in the detoxification of estrogens. Two major genetic polymorphisms have been identified in the UGT1A1 locus. UGT1A1*28 has been previously linked to increased risk of breast cancer. The aim of this study was to elucidate the possible correlation between UGT1A1*6, a single nucleotide polymorphism causing a Gly71Arg substitution, and breast cancer susceptibility. Forty-six women diagnosed with breast cancer, 15 patients with gastrointestinal cancer, and 13 healthy women were recruited to this study. The genotype in the polymorphic UGT1A1 locus was determined by DNA sequencing. The frequency of each genotype was compared among the three groups. The frequency of the UGT1A1*6 allele was significantly higher in breast cancer and gastrointestinal cancer patients than that in healthy females (both P < 0.05). No significant associations were observed between the UGT1A1*6 polymorphism and estrogen receptor, progesterone receptor, HER-2 expression status, menstrual status, or metastasis (all P > 0.05). Therefore, the UGT1A1*6 polymorphism was deduced to be a risk factor for breast cancer in women of Han Chinese ethnicity. UGT1A1 may serve as a therapeutic target for the prevention and treatment of breast cancer and other estrogen-related diseases.
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Affiliation(s)
- J Shi
- Department of Medical Oncology, Forth Hospital of Hebei Medical University, Tumor Hospital of Hebei Province, Shijiazhuang, Hebei, China
| | - L H Li
- Department of Medical Oncology, Forth Hospital of Hebei Medical University, Tumor Hospital of Hebei Province, Shijiazhuang, Hebei, China
| | - X Y Duan
- Department of Medical Oncology, Forth Hospital of Hebei Medical University, Tumor Hospital of Hebei Province, Shijiazhuang, Hebei, China
| | - Q Liu
- Department of Medical Oncology, Forth Hospital of Hebei Medical University, Tumor Hospital of Hebei Province, Shijiazhuang, Hebei, China
| | - L L Sun
- Department of Medical Oncology, Forth Hospital of Hebei Medical University, Tumor Hospital of Hebei Province, Shijiazhuang, Hebei, China
| | - Y T Tian
- Department of Medical Oncology, The Peoples Hospital of Feicheng, Shangdong, China
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Lin X, Duan X, Liang YY, Su Y, Wrighton KH, Long J, Hu M, Davis CM, Wang J, Brunicardi FC, Shi Y, Chen YG, Meng A, Feng XH. PPM1A Functions as a Smad Phosphatase to Terminate TGFβ Signaling. Cell 2016; 165:498. [PMID: 27058669 DOI: 10.1016/j.cell.2016.03.038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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29
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Guo DC, Regalado ES, Gong L, Duan X, Santos-Cortez RLP, Arnaud P, Ren Z, Cai B, Hostetler EM, Moran R, Liang D, Estrera A, Safi HJ, Leal SM, Bamshad MJ, Shendure J, Nickerson DA, Jondeau G, Boileau C, Milewicz DM. LOX Mutations Predispose to Thoracic Aortic Aneurysms and Dissections. Circ Res 2016; 118:928-34. [PMID: 26838787 DOI: 10.1161/circresaha.115.307130] [Citation(s) in RCA: 152] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 01/11/2016] [Indexed: 01/08/2023]
Abstract
RATIONALE Mutations in several genes have been identified that are responsible for 25% of families with familial thoracic aortic aneurysms and dissections. However, the causative gene remains unknown in 75% of families. OBJECTIVES To identify the causative mutation in families with autosomal dominant inheritance of thoracic aortic aneurysms and dissections. METHODS AND RESULTS Exome sequencing was used to identify the mutation responsible for a large family with thoracic aortic aneurysms and dissections. A heterozygous rare variant, c.839G>T (p.Ser280Arg), was identified in LOX, encoding a lysyl oxidase, that segregated with disease in the family. Sanger and exome sequencing was used to investigate mutations in LOX in an additional 410 probands from unrelated families. Additional LOX rare variants that segregated with disease in families were identified, including c.125G>A (p.Trp42*), c.604G>T (p.Gly202*), c.743C>T (p.Thr248Ile), c.800A>C (p.Gln267Pro), and c.1044T>A (p.Ser348Arg). The altered amino acids cause haploinsufficiency for LOX or are located at a highly conserved LOX catalytic domain, which is relatively invariant in the population. Expression of the LOX variants p.Ser280Arg and p.Ser348Arg resulted in significantly lower lysyl oxidase activity when compared with the wild-type protein. Individuals with LOX variants had fusiform enlargement of the root and ascending thoracic aorta, leading to ascending aortic dissections. CONCLUSIONS These data, along with previous studies showing that the deficiency of LOX in mice or inhibition of lysyl oxidases in turkeys and rats causes aortic dissections, support the conclusion that rare genetic variants in LOX predispose to thoracic aortic disease.
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Affiliation(s)
- Dong-chuan Guo
- From the Departments of Internal Medicine (D.G., E.S.R., L.G., X.D., Z.R., B.C., E.M.H., D.M.M.) and Cardiothoracic and Vascular Surgery (A.E., H.J.S.), University of Texas Health Science Center, Houston; Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, TX (R.L.P.S.-C., S.M.L.); Laboratory for Vascular Translational Science, INSERM U1148, Hôpital Bichat, Paris, France (P.A., G.J., C.B.); Centre National de Référence pour le syndrome de Marfan et apparentés, Département de Génétique Moléculaire, AP-HP, Hôpital Bichat, Paris, France (P.A., C.B.); Department of Pediatrics, MetroHealth Medical Center, Cleveland, OH (R.M.); Department of Medicine, Stanford University Medical Center, CA (D.L.); and Department of Genome Sciences, University of Washington, Seattle (M.J.B., J.S., D.A.N.)
| | - Ellen S Regalado
- From the Departments of Internal Medicine (D.G., E.S.R., L.G., X.D., Z.R., B.C., E.M.H., D.M.M.) and Cardiothoracic and Vascular Surgery (A.E., H.J.S.), University of Texas Health Science Center, Houston; Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, TX (R.L.P.S.-C., S.M.L.); Laboratory for Vascular Translational Science, INSERM U1148, Hôpital Bichat, Paris, France (P.A., G.J., C.B.); Centre National de Référence pour le syndrome de Marfan et apparentés, Département de Génétique Moléculaire, AP-HP, Hôpital Bichat, Paris, France (P.A., C.B.); Department of Pediatrics, MetroHealth Medical Center, Cleveland, OH (R.M.); Department of Medicine, Stanford University Medical Center, CA (D.L.); and Department of Genome Sciences, University of Washington, Seattle (M.J.B., J.S., D.A.N.)
| | - Limin Gong
- From the Departments of Internal Medicine (D.G., E.S.R., L.G., X.D., Z.R., B.C., E.M.H., D.M.M.) and Cardiothoracic and Vascular Surgery (A.E., H.J.S.), University of Texas Health Science Center, Houston; Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, TX (R.L.P.S.-C., S.M.L.); Laboratory for Vascular Translational Science, INSERM U1148, Hôpital Bichat, Paris, France (P.A., G.J., C.B.); Centre National de Référence pour le syndrome de Marfan et apparentés, Département de Génétique Moléculaire, AP-HP, Hôpital Bichat, Paris, France (P.A., C.B.); Department of Pediatrics, MetroHealth Medical Center, Cleveland, OH (R.M.); Department of Medicine, Stanford University Medical Center, CA (D.L.); and Department of Genome Sciences, University of Washington, Seattle (M.J.B., J.S., D.A.N.)
| | - Xueyan Duan
- From the Departments of Internal Medicine (D.G., E.S.R., L.G., X.D., Z.R., B.C., E.M.H., D.M.M.) and Cardiothoracic and Vascular Surgery (A.E., H.J.S.), University of Texas Health Science Center, Houston; Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, TX (R.L.P.S.-C., S.M.L.); Laboratory for Vascular Translational Science, INSERM U1148, Hôpital Bichat, Paris, France (P.A., G.J., C.B.); Centre National de Référence pour le syndrome de Marfan et apparentés, Département de Génétique Moléculaire, AP-HP, Hôpital Bichat, Paris, France (P.A., C.B.); Department of Pediatrics, MetroHealth Medical Center, Cleveland, OH (R.M.); Department of Medicine, Stanford University Medical Center, CA (D.L.); and Department of Genome Sciences, University of Washington, Seattle (M.J.B., J.S., D.A.N.)
| | - Regie Lyn P Santos-Cortez
- From the Departments of Internal Medicine (D.G., E.S.R., L.G., X.D., Z.R., B.C., E.M.H., D.M.M.) and Cardiothoracic and Vascular Surgery (A.E., H.J.S.), University of Texas Health Science Center, Houston; Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, TX (R.L.P.S.-C., S.M.L.); Laboratory for Vascular Translational Science, INSERM U1148, Hôpital Bichat, Paris, France (P.A., G.J., C.B.); Centre National de Référence pour le syndrome de Marfan et apparentés, Département de Génétique Moléculaire, AP-HP, Hôpital Bichat, Paris, France (P.A., C.B.); Department of Pediatrics, MetroHealth Medical Center, Cleveland, OH (R.M.); Department of Medicine, Stanford University Medical Center, CA (D.L.); and Department of Genome Sciences, University of Washington, Seattle (M.J.B., J.S., D.A.N.)
| | - Pauline Arnaud
- From the Departments of Internal Medicine (D.G., E.S.R., L.G., X.D., Z.R., B.C., E.M.H., D.M.M.) and Cardiothoracic and Vascular Surgery (A.E., H.J.S.), University of Texas Health Science Center, Houston; Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, TX (R.L.P.S.-C., S.M.L.); Laboratory for Vascular Translational Science, INSERM U1148, Hôpital Bichat, Paris, France (P.A., G.J., C.B.); Centre National de Référence pour le syndrome de Marfan et apparentés, Département de Génétique Moléculaire, AP-HP, Hôpital Bichat, Paris, France (P.A., C.B.); Department of Pediatrics, MetroHealth Medical Center, Cleveland, OH (R.M.); Department of Medicine, Stanford University Medical Center, CA (D.L.); and Department of Genome Sciences, University of Washington, Seattle (M.J.B., J.S., D.A.N.)
| | - Zhao Ren
- From the Departments of Internal Medicine (D.G., E.S.R., L.G., X.D., Z.R., B.C., E.M.H., D.M.M.) and Cardiothoracic and Vascular Surgery (A.E., H.J.S.), University of Texas Health Science Center, Houston; Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, TX (R.L.P.S.-C., S.M.L.); Laboratory for Vascular Translational Science, INSERM U1148, Hôpital Bichat, Paris, France (P.A., G.J., C.B.); Centre National de Référence pour le syndrome de Marfan et apparentés, Département de Génétique Moléculaire, AP-HP, Hôpital Bichat, Paris, France (P.A., C.B.); Department of Pediatrics, MetroHealth Medical Center, Cleveland, OH (R.M.); Department of Medicine, Stanford University Medical Center, CA (D.L.); and Department of Genome Sciences, University of Washington, Seattle (M.J.B., J.S., D.A.N.)
| | - Bo Cai
- From the Departments of Internal Medicine (D.G., E.S.R., L.G., X.D., Z.R., B.C., E.M.H., D.M.M.) and Cardiothoracic and Vascular Surgery (A.E., H.J.S.), University of Texas Health Science Center, Houston; Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, TX (R.L.P.S.-C., S.M.L.); Laboratory for Vascular Translational Science, INSERM U1148, Hôpital Bichat, Paris, France (P.A., G.J., C.B.); Centre National de Référence pour le syndrome de Marfan et apparentés, Département de Génétique Moléculaire, AP-HP, Hôpital Bichat, Paris, France (P.A., C.B.); Department of Pediatrics, MetroHealth Medical Center, Cleveland, OH (R.M.); Department of Medicine, Stanford University Medical Center, CA (D.L.); and Department of Genome Sciences, University of Washington, Seattle (M.J.B., J.S., D.A.N.)
| | - Ellen M Hostetler
- From the Departments of Internal Medicine (D.G., E.S.R., L.G., X.D., Z.R., B.C., E.M.H., D.M.M.) and Cardiothoracic and Vascular Surgery (A.E., H.J.S.), University of Texas Health Science Center, Houston; Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, TX (R.L.P.S.-C., S.M.L.); Laboratory for Vascular Translational Science, INSERM U1148, Hôpital Bichat, Paris, France (P.A., G.J., C.B.); Centre National de Référence pour le syndrome de Marfan et apparentés, Département de Génétique Moléculaire, AP-HP, Hôpital Bichat, Paris, France (P.A., C.B.); Department of Pediatrics, MetroHealth Medical Center, Cleveland, OH (R.M.); Department of Medicine, Stanford University Medical Center, CA (D.L.); and Department of Genome Sciences, University of Washington, Seattle (M.J.B., J.S., D.A.N.)
| | - Rocio Moran
- From the Departments of Internal Medicine (D.G., E.S.R., L.G., X.D., Z.R., B.C., E.M.H., D.M.M.) and Cardiothoracic and Vascular Surgery (A.E., H.J.S.), University of Texas Health Science Center, Houston; Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, TX (R.L.P.S.-C., S.M.L.); Laboratory for Vascular Translational Science, INSERM U1148, Hôpital Bichat, Paris, France (P.A., G.J., C.B.); Centre National de Référence pour le syndrome de Marfan et apparentés, Département de Génétique Moléculaire, AP-HP, Hôpital Bichat, Paris, France (P.A., C.B.); Department of Pediatrics, MetroHealth Medical Center, Cleveland, OH (R.M.); Department of Medicine, Stanford University Medical Center, CA (D.L.); and Department of Genome Sciences, University of Washington, Seattle (M.J.B., J.S., D.A.N.)
| | - David Liang
- From the Departments of Internal Medicine (D.G., E.S.R., L.G., X.D., Z.R., B.C., E.M.H., D.M.M.) and Cardiothoracic and Vascular Surgery (A.E., H.J.S.), University of Texas Health Science Center, Houston; Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, TX (R.L.P.S.-C., S.M.L.); Laboratory for Vascular Translational Science, INSERM U1148, Hôpital Bichat, Paris, France (P.A., G.J., C.B.); Centre National de Référence pour le syndrome de Marfan et apparentés, Département de Génétique Moléculaire, AP-HP, Hôpital Bichat, Paris, France (P.A., C.B.); Department of Pediatrics, MetroHealth Medical Center, Cleveland, OH (R.M.); Department of Medicine, Stanford University Medical Center, CA (D.L.); and Department of Genome Sciences, University of Washington, Seattle (M.J.B., J.S., D.A.N.)
| | - Anthony Estrera
- From the Departments of Internal Medicine (D.G., E.S.R., L.G., X.D., Z.R., B.C., E.M.H., D.M.M.) and Cardiothoracic and Vascular Surgery (A.E., H.J.S.), University of Texas Health Science Center, Houston; Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, TX (R.L.P.S.-C., S.M.L.); Laboratory for Vascular Translational Science, INSERM U1148, Hôpital Bichat, Paris, France (P.A., G.J., C.B.); Centre National de Référence pour le syndrome de Marfan et apparentés, Département de Génétique Moléculaire, AP-HP, Hôpital Bichat, Paris, France (P.A., C.B.); Department of Pediatrics, MetroHealth Medical Center, Cleveland, OH (R.M.); Department of Medicine, Stanford University Medical Center, CA (D.L.); and Department of Genome Sciences, University of Washington, Seattle (M.J.B., J.S., D.A.N.)
| | - Hazim J Safi
- From the Departments of Internal Medicine (D.G., E.S.R., L.G., X.D., Z.R., B.C., E.M.H., D.M.M.) and Cardiothoracic and Vascular Surgery (A.E., H.J.S.), University of Texas Health Science Center, Houston; Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, TX (R.L.P.S.-C., S.M.L.); Laboratory for Vascular Translational Science, INSERM U1148, Hôpital Bichat, Paris, France (P.A., G.J., C.B.); Centre National de Référence pour le syndrome de Marfan et apparentés, Département de Génétique Moléculaire, AP-HP, Hôpital Bichat, Paris, France (P.A., C.B.); Department of Pediatrics, MetroHealth Medical Center, Cleveland, OH (R.M.); Department of Medicine, Stanford University Medical Center, CA (D.L.); and Department of Genome Sciences, University of Washington, Seattle (M.J.B., J.S., D.A.N.)
| | | | - Suzanne M Leal
- From the Departments of Internal Medicine (D.G., E.S.R., L.G., X.D., Z.R., B.C., E.M.H., D.M.M.) and Cardiothoracic and Vascular Surgery (A.E., H.J.S.), University of Texas Health Science Center, Houston; Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, TX (R.L.P.S.-C., S.M.L.); Laboratory for Vascular Translational Science, INSERM U1148, Hôpital Bichat, Paris, France (P.A., G.J., C.B.); Centre National de Référence pour le syndrome de Marfan et apparentés, Département de Génétique Moléculaire, AP-HP, Hôpital Bichat, Paris, France (P.A., C.B.); Department of Pediatrics, MetroHealth Medical Center, Cleveland, OH (R.M.); Department of Medicine, Stanford University Medical Center, CA (D.L.); and Department of Genome Sciences, University of Washington, Seattle (M.J.B., J.S., D.A.N.)
| | - Michael J Bamshad
- From the Departments of Internal Medicine (D.G., E.S.R., L.G., X.D., Z.R., B.C., E.M.H., D.M.M.) and Cardiothoracic and Vascular Surgery (A.E., H.J.S.), University of Texas Health Science Center, Houston; Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, TX (R.L.P.S.-C., S.M.L.); Laboratory for Vascular Translational Science, INSERM U1148, Hôpital Bichat, Paris, France (P.A., G.J., C.B.); Centre National de Référence pour le syndrome de Marfan et apparentés, Département de Génétique Moléculaire, AP-HP, Hôpital Bichat, Paris, France (P.A., C.B.); Department of Pediatrics, MetroHealth Medical Center, Cleveland, OH (R.M.); Department of Medicine, Stanford University Medical Center, CA (D.L.); and Department of Genome Sciences, University of Washington, Seattle (M.J.B., J.S., D.A.N.)
| | - Jay Shendure
- From the Departments of Internal Medicine (D.G., E.S.R., L.G., X.D., Z.R., B.C., E.M.H., D.M.M.) and Cardiothoracic and Vascular Surgery (A.E., H.J.S.), University of Texas Health Science Center, Houston; Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, TX (R.L.P.S.-C., S.M.L.); Laboratory for Vascular Translational Science, INSERM U1148, Hôpital Bichat, Paris, France (P.A., G.J., C.B.); Centre National de Référence pour le syndrome de Marfan et apparentés, Département de Génétique Moléculaire, AP-HP, Hôpital Bichat, Paris, France (P.A., C.B.); Department of Pediatrics, MetroHealth Medical Center, Cleveland, OH (R.M.); Department of Medicine, Stanford University Medical Center, CA (D.L.); and Department of Genome Sciences, University of Washington, Seattle (M.J.B., J.S., D.A.N.)
| | - Deborah A Nickerson
- From the Departments of Internal Medicine (D.G., E.S.R., L.G., X.D., Z.R., B.C., E.M.H., D.M.M.) and Cardiothoracic and Vascular Surgery (A.E., H.J.S.), University of Texas Health Science Center, Houston; Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, TX (R.L.P.S.-C., S.M.L.); Laboratory for Vascular Translational Science, INSERM U1148, Hôpital Bichat, Paris, France (P.A., G.J., C.B.); Centre National de Référence pour le syndrome de Marfan et apparentés, Département de Génétique Moléculaire, AP-HP, Hôpital Bichat, Paris, France (P.A., C.B.); Department of Pediatrics, MetroHealth Medical Center, Cleveland, OH (R.M.); Department of Medicine, Stanford University Medical Center, CA (D.L.); and Department of Genome Sciences, University of Washington, Seattle (M.J.B., J.S., D.A.N.)
| | - Guillaume Jondeau
- From the Departments of Internal Medicine (D.G., E.S.R., L.G., X.D., Z.R., B.C., E.M.H., D.M.M.) and Cardiothoracic and Vascular Surgery (A.E., H.J.S.), University of Texas Health Science Center, Houston; Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, TX (R.L.P.S.-C., S.M.L.); Laboratory for Vascular Translational Science, INSERM U1148, Hôpital Bichat, Paris, France (P.A., G.J., C.B.); Centre National de Référence pour le syndrome de Marfan et apparentés, Département de Génétique Moléculaire, AP-HP, Hôpital Bichat, Paris, France (P.A., C.B.); Department of Pediatrics, MetroHealth Medical Center, Cleveland, OH (R.M.); Department of Medicine, Stanford University Medical Center, CA (D.L.); and Department of Genome Sciences, University of Washington, Seattle (M.J.B., J.S., D.A.N.)
| | - Catherine Boileau
- From the Departments of Internal Medicine (D.G., E.S.R., L.G., X.D., Z.R., B.C., E.M.H., D.M.M.) and Cardiothoracic and Vascular Surgery (A.E., H.J.S.), University of Texas Health Science Center, Houston; Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, TX (R.L.P.S.-C., S.M.L.); Laboratory for Vascular Translational Science, INSERM U1148, Hôpital Bichat, Paris, France (P.A., G.J., C.B.); Centre National de Référence pour le syndrome de Marfan et apparentés, Département de Génétique Moléculaire, AP-HP, Hôpital Bichat, Paris, France (P.A., C.B.); Department of Pediatrics, MetroHealth Medical Center, Cleveland, OH (R.M.); Department of Medicine, Stanford University Medical Center, CA (D.L.); and Department of Genome Sciences, University of Washington, Seattle (M.J.B., J.S., D.A.N.)
| | - Dianna M Milewicz
- From the Departments of Internal Medicine (D.G., E.S.R., L.G., X.D., Z.R., B.C., E.M.H., D.M.M.) and Cardiothoracic and Vascular Surgery (A.E., H.J.S.), University of Texas Health Science Center, Houston; Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, TX (R.L.P.S.-C., S.M.L.); Laboratory for Vascular Translational Science, INSERM U1148, Hôpital Bichat, Paris, France (P.A., G.J., C.B.); Centre National de Référence pour le syndrome de Marfan et apparentés, Département de Génétique Moléculaire, AP-HP, Hôpital Bichat, Paris, France (P.A., C.B.); Department of Pediatrics, MetroHealth Medical Center, Cleveland, OH (R.M.); Department of Medicine, Stanford University Medical Center, CA (D.L.); and Department of Genome Sciences, University of Washington, Seattle (M.J.B., J.S., D.A.N.).
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Lin YC, Lu LT, Chen HY, Duan X, Lin X, Feng XH, Tang MJ, Chen RH. SCP phosphatases suppress renal cell carcinoma by stabilizing PML and inhibiting mTOR/HIF signaling. Cancer Res 2014; 74:6935-46. [PMID: 25293974 DOI: 10.1158/0008-5472.can-14-1330] [Citation(s) in RCA: 21] [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: 11/16/2022]
Abstract
The tumor-suppressor protein promyelocytic leukemia (PML) is aberrantly degraded in multiple types of human cancers through mechanisms that are incompletely understood. Here, we show that the phosphatase SCP1 and its isoforms SCP2/3 dephosphorylate PML at S518, thereby blocking PML ubiquitination and degradation mediated by the prolyl isomerase Pin1 and the ubiquitin ligase KLHL20. Clinically, SCP1 and SCP3 are downregulated in clear cell renal cell carcinoma (ccRCC) and these events correlated with PMLS518 phosphorylation, PML turnover, and high-grade tumors. Restoring SCP1-mediated PML stabilization not only inhibited malignant features of ccRCC, including proliferation, migration, invasion, tumor growth, and tumor angiogenesis, but also suppressed the mTOR-HIF pathway. Furthermore, blocking PML degradation in ccRCC by SCP1 overexpression or Pin1 inhibition enhanced the tumor-suppressive effects of the mTOR inhibitor temsirolimus. Taken together, our results define a novel pathway of PML degradation in ccRCC that involves SCP downregulation, revealing contributions of this pathway to ccRCC progression and offering a mechanistic rationale for combination therapies that jointly target PML degradation and mTOR inhibition for ccRCC treatment.
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Affiliation(s)
- Yu-Ching Lin
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan. Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan
| | - Li-Ting Lu
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan. Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan
| | - Hsin-Yi Chen
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan. Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Xueyan Duan
- Michael E DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas. Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas
| | - Xia Lin
- Michael E DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas
| | - Xin-Hua Feng
- Michael E DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas. Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas
| | - Ming-Jer Tang
- Department of Physiology, National Cheng Kung University Medical College, Tainan, Taiwan
| | - Ruey-Hwa Chen
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan. Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan.
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Zhao Y, Xiao M, Sun B, Zhang Z, Shen T, Duan X, Yu PB, Feng XH, Lin X. C-terminal domain (CTD) small phosphatase-like 2 modulates the canonical bone morphogenetic protein (BMP) signaling and mesenchymal differentiation via Smad dephosphorylation. J Biol Chem 2014; 289:26441-26450. [PMID: 25100727 PMCID: PMC4176200 DOI: 10.1074/jbc.m114.568964] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [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: 03/26/2014] [Revised: 08/05/2014] [Indexed: 01/10/2023] Open
Abstract
The bone morphogenetic protein (BMP) signaling pathway regulates a wide range of cellular responses in metazoans. A key step in the canonical BMP signaling is the phosphorylation and activation of transcription factors Smad1, Smad5, and Smad8 (collectively Smad1/5/8) by the type I BMP receptors. We previously identified PPM1A as a phosphatase toward dephosphorylation of all receptor-regulated Smads (R-Smads), including Smad1/5/8. Here we report another nuclear phosphatase named SCP4/CTDSPL2, belonging to the FCP/SCP family, as a novel Smad phosphatase in the nucleus. SCP4 physically interacts with and specifically dephosphorylates Smad1/5/8, and as a result attenuates BMP-induced transcriptional responses. Knockdown of SCP4 in multipotent mesenchymal C2C12 cells leads to increased expression of BMP target genes and consequently promotes BMP-induced osteogenic differentiation. Collectively, our results demonstrate that SCP4, as a Smad phosphatase, plays a critical role in BMP-induced signaling and cellular functions.
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Affiliation(s)
- Yulan Zhao
- Life Sciences Institute, and Innovation Center for Cell Biology, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Mu Xiao
- Life Sciences Institute, and Innovation Center for Cell Biology, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Baoguo Sun
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas 77030; Department of Molecular Physiology and Biophysics, and Baylor College of Medicine, Houston, Texas 77030
| | - Zhengmao Zhang
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas 77030
| | - Tao Shen
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas 77030; Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, Texas 77030, and
| | - Xueyan Duan
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas 77030
| | - Paul Borchyung Yu
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, Massachusetts 02114
| | - Xin-Hua Feng
- Life Sciences Institute, and Innovation Center for Cell Biology, Zhejiang University, Hangzhou, Zhejiang 310058, China,; Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas 77030; Department of Molecular Physiology and Biophysics, and Baylor College of Medicine, Houston, Texas 77030; Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas 77030,.
| | - Xia Lin
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas 77030.
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Shen T, Sun C, Zhang Z, Xu N, Duan X, Feng XH, Lin X. Specific control of BMP signaling and mesenchymal differentiation by cytoplasmic phosphatase PPM1H. Cell Res 2014; 24:727-41. [PMID: 24732009 DOI: 10.1038/cr.2014.48] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 02/19/2014] [Accepted: 02/26/2014] [Indexed: 12/15/2022] Open
Abstract
Bone morphogenetic proteins (BMPs) belong to the TGF-β superfamily of structurally related signaling proteins that regulate a wide array of cellular functions. The key step in BMP signal transduction is the BMP receptor-mediated phosphorylation of transcription factors Smad1, 5, and 8 (collectively Smad1/5/8), which leads to the subsequent activation of BMP-induced gene transcription in the nucleus. In this study, we describe the identification and characterization of PPM1H as a novel cytoplasm-localized Smad1/5/8-specific phosphatase. PPM1H directly interacts with Smad1/5/8 through its Smad-binding domain, and dephosphorylates phospho-Smad1/5/8 (P-Smad1/5/8) in the cytoplasm. Ectopic expression of PPM1H attenuates BMP signaling, whereas loss of PPM1H activity or expression greatly enhances BMP-dependent gene regulation and mesenchymal differentiation. In conclusion, this study suggests that PPM1H acts as a gatekeeper to prevent excessive BMP signaling through dephosphorylation and subsequent nuclear exclusion of P-Smad1/5/8 proteins.
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Affiliation(s)
- Tao Shen
- 1] Michael E DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA [2] Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA [3] Institute of Biosciences and Technology, Texas A&M University Health Science Center, Houston, TX 77030, USA
| | - Chuang Sun
- 1] Michael E DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA [2] Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Zhengmao Zhang
- Michael E DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
| | - Ningyi Xu
- Life Sciences Institute, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Xueyan Duan
- Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Xin-Hua Feng
- 1] Life Sciences Institute, Zhejiang University, Hangzhou, Zhejiang 310058, China [2] Michael E DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA [3] Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA [4] Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Xia Lin
- Michael E DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
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Zhou G, Liu SH, Shahi KM, Wang H, Duan X, Lin X, Feng XH, Li M, Fisher WE, Demayo FJ, Dawson D, Brunicardi FC. Negative regulation of pancreatic and duodenal homeobox-1 by somatostatin receptor subtype 5. Mol Endocrinol 2012; 26:1225-34. [PMID: 22669743 DOI: 10.1210/me.2012-1095] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Somatostatin receptor subtype 5 (SSTR5) mediates the inhibitory effect of somatostatin and its analogs on insulin expression/secretion and islet cell proliferation. We provide biochemical and genetic evidence that SSTR5 exerted its physiological actions via down-regulating pancreatic and duodenal homeobox-1 (PDX-1), a β-cell-specific homeodomain-containing transcription factor. Cotransfection of SSTR5 with PDX-1 resulted in dose-dependent inhibition of PDX-1 expression in human embryonic kidney 293 cells. SSTR5 agonist RPL-1980 inhibited PDX-1 expression and abolished glucagon-like peptide 1-stimulated PDX-1 expression in mouse insulinoma β-TC-6 cells. SSTR5 knockdown by short hairpin RNA led to increased PDX-1 expression that was accompanied by enhanced insulin secretion stimulated by high glucose in β-TC6 cells and alternated expressions of cell cycle proteins that favor cell proliferation in mouse insulinoma MIN6 cells. Quantitative RT-PCR analysis showed that cotransfected SSTR5 inhibited PDX-1 mRNA expression, whereas knockdown of SSTR5 increased PDX-1 mRNA expression. In addition, we found that cotransfected wild-type SSTR5 increased PDX-1 ubiquitination in human embryonic kidney 293 cells, whereas SSTR5 P335L, a hypofunctional single nucleotide polymorphism of SSTR5, inhibited PDX-1 ubiquitination. SSTR5 knockout resulted in increased expression of PDX-1, insulin, and proliferating cell nuclear antigen in the islets of sstr(-/-) mice. Immunohistochemistry analysis showed that SSTR5 P335L was associated with elevated expression of PDX-1 in human pancreatic neuroendocrine tumor. Taken together, our studies demonstrated that SSTR5 is a negative regulator for PDX-1 expression and that SSTR5 may mediate the inhibitory effects of somatostatin and its analogs on insulin expression/secretion and cell proliferation via down-regulating PDX-1 at both transcriptional and posttranslational levels.
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Affiliation(s)
- Guisheng Zhou
- Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles, California 90095, USA
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Duan XY, Ma F, Chang LM. Electrochemical degradation of 4-chlorophenol in aqueous solution using modified PbO(2) anode. Water Sci Technol 2012; 66:2468-2474. [PMID: 23032780 DOI: 10.2166/wst.2012.440] [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] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The electrochemical oxidation of 4-chlorophenol (4-CP) in aqueous solution was studied by electrochemical oxidation using modified PbO(2) electrode as anode. The influence of several operating parameters, such as initial 4-CP concentration, applied current density, and supporting electrolyte (Na(2)SO(4)) concentration was investigated. Ultraviolet spectroscopy and total organic carbon (TOC) measurements were conducted to study the kinetics of 4-CP electrochemical reaction and the mineralization efficiency of 4-CP. The experimental results showed that the 4-CP degradation always followed a pseudo-first-order kinetics. The higher mineralization of 4-CP and the lower current efficiency (CE) were obtained by the lower initial 4-CP concentration. The applied current density showed a positive influence on the degradation of 4-CP and the removal of TOC, but a higher applied current density led to a lower CE. Although Na(2)SO(4) concentration of 0.05 M resulted in a higher 4-CP and TOC removal, the result of one-way analysis of variance (ANOVA) indicates that Na(2)SO(4) concentration is not the significant parameter for 4-CP removal in electrochemical oxidation.
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Affiliation(s)
- X Y Duan
- Jilin Normal University, Siping, China.
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Duan X, Tao S, Gao X, Zhang J, Lin X, Feng X. PPB is a Novel Serine/Threonine Phosphatase of Akt and is Involved in Myogenesis. FASEB J 2010. [DOI: 10.1096/fasebj.24.1_supplement.863.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Xinxin Gao
- Department of Pharmacology and Molecular SciencesThe Johns Hopkins University School of MedicineBaltimoreMD
| | - Jin Zhang
- Department of Pharmacology and Molecular SciencesThe Johns Hopkins University School of MedicineBaltimoreMD
| | - Xia Lin
- SurgeryBaylor College of MedicineHoustonTX
| | - Xin‐Hua Feng
- Molecular & Cellular Biology
- SurgeryBaylor College of MedicineHoustonTX
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Abstract
In eukaryotes, regulation of signaling mediators/effectors in the nucleus is one of the principal mechanisms that govern duration and strength of signaling. Smads are a family of structurally related intracellular proteins that serve as signaling effectors for transforming growth factor beta (TGF-beta) and TGF-beta-related proteins. Accumulating evidence demonstrates that Smads possess intrinsic nucleocytoplasmic shuttling capacity, which enables them to transmit TGF-beta signals from cell membrane to nucleus. We recently identified two important steps in the termination of nuclear Smad signaling. The first step is initiated by a serine/threonine phosphatase PPM1A that dephosphorylates Smad2/3 in the nucleus, thereby shutting down signaling capacity of phosphorylated Smad2/3. The second step involves nuclear export of dephosphorylated Smad2/3 with the aid of nuclear protein RanBP3 to terminate Smad signaling. This chapter introduces methods for examining nuclear export of Smad2/3 in TGF-beta signaling.
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Affiliation(s)
- Fangyan Dai
- Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX77030, USA,Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX77030, USA,The Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX77030, USA
| | - Xueyan Duan
- Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX77030, USA,Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX77030, USA,The Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX77030, USA
| | - Yao-Yun Liang
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX77030, USA
| | - Xia Lin
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX77030, USA,The Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX77030, USA
| | - Xin-Hua Feng
- Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX77030, USA,Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX77030, USA,The Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX77030, USA,Corresponding author: Department of Molecular & Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Room R712, Houston, TX 77030, Phone: 713-798-4756, Fax: 713-798-4093,
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Duan X, Liu Q, Zhang Y, Bi K, Chen X, Wang Y, Luo G. Development of Monolithic Osmotic Pump Tablet System for Isosorbide-5-Mononitrate Delivery and Evaluation of it In Vitro and In Vivo. Drug Dev Ind Pharm 2009; 35:499-507. [DOI: 10.1080/03639040802459437] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Duan X, Liu Q, Su Q, Bi K, Wang Y, Luo G. Improved GC for Isosorbide-5-mononitrate Determination in Dog Plasma and Its Application in Pharmacokinetics. Chromatographia 2009. [DOI: 10.1365/s10337-009-0960-z] [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: 11/05/2022]
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Duan X, Liang YY, Feng XH, Lin X. Protein Serine/Threonine Phosphatase PPM1A Dephosphorylates Smad1 in the Bone Morphogenetic Protein Signaling Pathway. J Biol Chem 2006; 281:36526-32. [PMID: 16931515 DOI: 10.1074/jbc.m605169200] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Bone morphogenetic proteins (BMPs) are secreted polypeptides belonging to the transforming growth factor-beta (TGF-beta) superfamily that activates a broad range of biological responses in the metazoan organism. The BMP-initiated signaling pathway is under tight control by processes including regulation of the ligands, the receptors, and the key downstream intracellular effector Smads. A critical point of control in BMP signaling is the phosphorylation of Smad1, Smad5, and Smad8 in their C-terminal SXS motif. Although such phosphorylation, which is mediated by the type I BMP receptor kinases in response to BMP stimulation, is well characterized, biochemical mechanisms underlying Smad dephosphorylation remain to be elucidated. In this study, we have found that PPM1A, a metal ion-dependent protein serine/threonine phosphatase, physically interacts with and dephosphorylates Smad1 both in vitro and in vivo. Functionally, overexpression of PPM1A abolishes BMP-induced transcriptional responses, whereas RNA interference-mediated knockdown of PPM1A enhances BMP signaling. Collectively, our study suggests that PPM1A plays an important role in controlling BMP signaling through catalyzing Smad dephosphorylation.
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Affiliation(s)
- Xueyan Duan
- Department of Molecular and Cellular Biology, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas 77030, USA
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Lin X, Duan X, Liang YY, Su Y, Wrighton KH, Long J, Hu M, Davis CM, Wang J, Brunicardi FC, Shi Y, Chen YG, Meng A, Feng XH. PPM1A functions as a Smad phosphatase to terminate TGFbeta signaling. Cell 2006; 125:915-28. [PMID: 16751101 PMCID: PMC6309366 DOI: 10.1016/j.cell.2006.03.044] [Citation(s) in RCA: 377] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2005] [Revised: 01/31/2006] [Accepted: 03/23/2006] [Indexed: 01/07/2023]
Abstract
TGFbeta signaling controls diverse normal developmental processes and pathogenesis of diseases including cancer and autoimmune and fibrotic diseases. TGFbeta responses are generally mediated through transcriptional functions of Smads. A key step in TGFbeta signaling is ligand-induced phosphorylation of receptor-activated Smads (R-Smads) catalyzed by the TGFbeta type I receptor kinase. However, the potential of Smad dephosphorylation as a regulatory mechanism of TGFbeta signaling and the identity of Smad-specific phosphatases remain elusive. Using a functional genomic approach, we have identified PPM1A/PP2Calpha as a bona fide Smad phosphatase. PPM1A dephosphorylates and promotes nuclear export of TGFbeta-activated Smad2/3. Ectopic expression of PPM1A abolishes TGFbeta-induced antiproliferative and transcriptional responses, whereas depletion of PPM1A enhances TGFbeta signaling in mammalian cells. Smad-antagonizing activity of PPM1A is also observed during Nodal-dependent early embryogenesis in zebrafish. This work demonstrates that PPM1A/PP2Calpha, through dephosphorylation of Smad2/3, plays a critical role in terminating TGFbeta signaling.
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Affiliation(s)
- Xia Lin
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
- Contact: (X.L.); (X.-H.F.)
| | - Xueyan Duan
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Yao-Yun Liang
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Ying Su
- State Key Laboratory of Biomembrane and Membrane Biotechnology and Department of Biological Sciences and Biotechnology, Tsinghua University, Beijing 100084, China
| | - Katharine H. Wrighton
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jianyin Long
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Min Hu
- Department of Molecular Biology, Lewis Thomas Laboratory, Princeton University, Princeton, NJ 08544, USA
| | - Candi M. Davis
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jinrong Wang
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - F. Charles Brunicardi
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
| | - Yigong Shi
- Department of Molecular Biology, Lewis Thomas Laboratory, Princeton University, Princeton, NJ 08544, USA
| | - Ye-Guang Chen
- State Key Laboratory of Biomembrane and Membrane Biotechnology and Department of Biological Sciences and Biotechnology, Tsinghua University, Beijing 100084, China
| | - Anming Meng
- State Key Laboratory of Biomembrane and Membrane Biotechnology and Department of Biological Sciences and Biotechnology, Tsinghua University, Beijing 100084, China
| | - Xin-Hua Feng
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
- Contact: (X.L.); (X.-H.F.)
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Wang ZL, Li LH, He ZH, Duan XY, Zhou YL, Chen XM, Lillemo M, Singh RP, Wang H, Xia XC. Seedling and Adult Plant Resistance to Powdery Mildew in Chinese Bread Wheat Cultivars and Lines. Plant Dis 2005; 89:457-463. [PMID: 30795421 DOI: 10.1094/pd-89-0457] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Powdery mildew, caused by Blumeria graminis f. sp. tritici, is a widespread wheat disease in China. Identification of race-specific genes and adult plant resistance (APR) is of major importance in breeding for an efficient genetic control strategy. The objectives of this study were to (i) identify genes that confer seedling resistance to powdery mildew in Chinese bread wheat cultivars and introductions used by breeding programs in China and (ii) evaluate their APR in the field. The results showed that (i) 98 of 192 tested wheat cultivars and lines appear to have one or more resistance genes to powdery mildew; (ii) Pm8 and Pm4b are the most common resistance genes in Chinese wheat cultivars, whereas Pm8 and Pm3d are present most frequently in wheat cultivars introduced from CIMMYT, the United States, and European countries; (iii) genotypes carrying Pm1, Pm3e, Pm5, and Pm7 were susceptible, whereas those carrying Pm12, Pm16, and Pm20 were highly resistant to almost all isolates of B. graminis f. sp. tritici tested; and (iv) 22 genotypes expressed APR. Our data showed that the area under the disease progress curve, maximum disease severity on the penultimate leaf, and the disease index are good indicators of the degree of APR in the field. It may be a good choice to combine major resistance genes and APR genes in wheat breeding to obtain effective resistance to powdery mildew.
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Affiliation(s)
- Z L Wang
- Institute of Crop Breeding and Cultivation/National Wheat Improvement Center, Chinese Academy of Agricultural Sciences (CAAS), No. 12 Zhongguancun South Street, 100081, Beijing, China and Northwest Sci-Tech University of Agriculture and Forestry, Yangling, 712100, Shaanxi, China
| | - L H Li
- Institute of Crop Breeding and Cultivation/National Wheat Improvement Center, CAAS
| | - Z H He
- Institute of Crop Breeding and Cultivation/National Wheat Improvement Center, CAAS and CIMMYT China Office, C/O CAAS, No. 12 Zhongguancun South Street, 100081, Beijing, China
| | - X Y Duan
- Institute of Plant Protection, CAAS, No. 2 Yuanmingyuan West Road, 100094, Beijing, China
| | - Y L Zhou
- Institute of Plant Protection, CAAS, No. 2 Yuanmingyuan West Road, 100094, Beijing, China
| | - X M Chen
- Institute of Crop Breeding and Cultivation/National Wheat Improvement Center, CAAS
| | - M Lillemo
- International Maize and Wheat Improvement Center (CIMMYT), Apdo Postal 6-641, 06600, Mexico D.F., Mexico
| | - R P Singh
- International Maize and Wheat Improvement Center (CIMMYT), Apdo Postal 6-641, 06600, Mexico D.F., Mexico
| | - H Wang
- Northwest Sci-Tech University of Agriculture and Forestry
| | - X C Xia
- Institute of Crop Breeding and Cultivation/National Wheat Improvement Center, CAAS
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Lancero H, Caberoy NB, Castaneda S, Li Y, Lu A, Dutton D, Duan XY, Kaplan HB, Shi W, Garza AG. Characterization of a Myxococcus xanthus mutant that is defective for adventurous motility and social motility. Microbiology (Reading) 2005; 150:4085-93. [PMID: 15583161 DOI: 10.1099/mic.0.27381-0] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Myxococcus xanthus is a gliding bacterium that possesses two motility systems, the adventurous (A-motility) and social (S-motility) systems. A-motility is used for individual cell gliding, while S-motility is used for gliding in multicellular groups. Video microscopy studies showed that nla24 cells are non-motile on agar surfaces, suggesting that the nla24 gene product is absolutely required for both A-motility and S-motility under these assay conditions. S-motility requires functional type IV pili, wild-type LPS O-antigen, and an extracellular matrix of exopolysaccharide (EPS) and protein called fibrils. The results of expression studies and tethering assays indicate that the nla24 mutant has functional type IV pili. The nla24 mutant also produces wild-type LPS. However, several lines of evidence suggest that the nla24 mutant is defective for production of the EPS portion of the fibril matrix. The nla24 mutant is also defective for transcription of two genes (aglU and cglB) known to be required for A-motility, which is consistent with the idea that nla24 cells are defective for A-motility. Based on these findings, it is proposed that the putative transcriptional activator Nla24 regulates a subset of genes that are important for A-motility and S-motility in M. xanthus.
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Affiliation(s)
- Hope Lancero
- Molecular Biology Institute, University of California, Los Angeles, CA 90095-1668, USA
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Abstract
AIMS The objective of this study was to design an economically feasible process for endoglucanase (EG) production. METHODS AND RESULTS Trichoderma pseudokoingii S-38 EG synthesis was studied. Initially, either glucose at 2.5, 5 or 10 g l-1, or cellulose powder (CF11) at 5 g l-1 was used as the sole carbon source. The results showed that enzyme synthesis and biomass formation were closely correlated, and both were affected by the carbon source. To improve EG volumetric product efficiency, a new technique was developed. Glucose and CF11 (2.5 and 5 g l-1, respectively) were used as initial carbon source, and glucose was added at 2.5 g l-1 day-1. EG activity, volumetric and specific EG productivities were 6.17 IU l-1, 53 IU l-1 h-1 and 114.3 IU (g cell protein)-1 h-1, respectively. Batch production in a 2-l laboratory fermenter confirmed the advantage of the technique. The product contained 10.86 IU ml-1 EG activity in 88 h. The volumetric and specific EG productivities were 123.4 IU l-1 h-1 and 177.8 IU (g cell protein)-1 h-1, respectively. CONCLUSIONS These results suggest that optimization of the ratio of glucose to CF11 for balancing the induction and growth rate in the production of EG may lead to technical and economical benefits. SIGNIFICANCE AND IMPACT OF THE STUDY A new technique was developed for the production of EG which improves both the volumetric product efficiency and the specific activity.
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Affiliation(s)
- X Y Duan
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, China
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Hu YK, Xin ZY, Chen X, Zhang ZY, Duan XY. [Genetic analysis and gene deduction of powdery mildew resistance in T. durum-Ae. squarrosa amphidiploids]. Yi Chuan Xue Bao 2001; 28:152-7. [PMID: 11233259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Eleven seedlings with resistance and two amphidiploids with disease resistance at all developmental stage were screened by using No. 15 isolate of E. graminis f. sp. tritici to inoculate 99 T. durum-Ae. squarrosa amphidiploids. The two amphidiploids with disease resistance at all developmental stage, M53 and M81, and their Ae. squarrosa parents were resistant to No. 15 isolate of powdery mildew payhogen, but their T. durum parents were susceptible. Therefore, the powdery mildew resistance of M53 and M81 were derived from Ae. squarrosa. Amphidiploid M74, which had the same durum parent as M53 but different Ae. squrrosa parent, was susceptible to No. 15 isolate in adult stage. M29 and M35, which had the same durum parent as M81 but different Ae. squarrosa parent were susceptible in all stage. These results were also proved that the powdery mildew resistance genes were derived from Ae. sqarrosa. Genetic analysis showed that powdery mildew resistance gene in M53 or M81 was a single dominant gene. A series of lines with known powdery mildew resistance genes and two unknown lines were used to test response patterns with 14 differential isolates of E. graminis f. sp. tritici. The response patterns in M53 and M81 were different from Pm1 to Pm21 and indicated that M53 and M81 conferred a new powdery mildew resistance gene respectively.
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Affiliation(s)
- Y K Hu
- Institute of Crop Breeding and Cultivation, CAAS, Beijing 100081, China
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