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Wu J, Xu L, Lv Y, Dong L, Zheng Q, Li L. Quantitative analysis of efficacy and associated factors of calcium intake on bone mineral density in postmenopausal women. Osteoporos Int 2017; 28:2003-2010. [PMID: 28337524 DOI: 10.1007/s00198-017-3993-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 02/28/2017] [Indexed: 12/21/2022]
Abstract
UNLABELLED A model-based meta-analysis method was performed to quantitatively analyze the efficacy characteristics of calcium intake in BMD increase among postmenopausal women. We found that age and calcium intake dose were key factors affecting the efficiency and onset of BMD change, and daily 1200 mg calcium was suggested to be a beneficial dosage. INTRODUCTION This paper aims to quantify the efficacy of calcium intake in preventing bone mineral density (BMD) decrease among postmenopausal women and to investigate the factors that may affect the efficacy. METHODS Comprehensive literature search was conducted in PubMed and EMBASE from January 2016. Placebo-controlled or no-treatment controlled randomized trials focused on calcium intake for the management of osteoporosis in postmenopausal women were included. The clinical and demographic characteristics of participants and efficacy data, defined as the mean percentage change of spine BMD (L2-L4) at each observation time point compared with that of baseline, were extracted from the studies. Model-based meta-analysis (MBMA) was used to describe the time course of BMD change by calcium intake and identify the related factors. RESULTS This study includes 17 trials involving 2537 subjects. The results showed that a classic pharmacodynamic maximal effect (E max) model could describe the time course of BMD change by calcium intake. Using this model, we found that age and calcium intake dose were key factors affecting the efficiency and onset of BMD change. A 60-year-old woman administered with 800 mg/day calcium can achieve a maximum BMD increasing rate of 2.38%, and the time to reach 50% of this maximum (known as onset time) was 9.44 months. An increase of 0.0817% per year was noted in the maximal effect value for women aged between 50 and 83 years. For calcium dose interval from 250 to 2000 mg/day, the onset time was expressed as 9.44 × (dose/800)-1.33 months. Two-year calcium intake of 700, 1200, and 2000 mg/day resulted in a maximum efficacy of BMD of 68.0, 81.3, and 89.6%, respectively. This indicates that the final efficacy had already reached the plateau (>80% E max) under the 1200-mg/day dose. CONCLUSION Calcium intake can effectively postpone the tendency of BMD decrease in postmenopausal women. An increased calcium dose contributes to the shortening of the onset time. Considering the drug-acting rate and safety into account, menopausal women can be administered with a rational dose of 1200 mg/day to reduce bone loss.
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Affiliation(s)
- J Wu
- Center for Drug Clinical Research, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Shanghai, 201203, China
| | - L Xu
- Center for Drug Clinical Research, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Shanghai, 201203, China
| | - Y Lv
- Center for Drug Clinical Research, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Shanghai, 201203, China
| | - L Dong
- Center for Drug Clinical Research, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Shanghai, 201203, China
| | - Q Zheng
- Center for Drug Clinical Research, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Shanghai, 201203, China.
| | - L Li
- Center for Drug Clinical Research, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Shanghai, 201203, China.
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152
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Pan L, Zhang J, Wang J, Yu Q, Bai L, Dong L. iTRAQ-based quantitative proteomic analysis reveals proteomic changes in three fenoxaprop- P -ethyl-resistant Beckmannia syzigachne biotypes with differing ACCase mutations. J Proteomics 2017; 160:47-54. [DOI: 10.1016/j.jprot.2017.03.018] [Citation(s) in RCA: 1] [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] [Received: 12/19/2016] [Revised: 03/03/2017] [Accepted: 03/20/2017] [Indexed: 11/26/2022]
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153
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Yang XY, Yu Y, Li DP, Dong L. [Current situation and thinking of diagnosis and treatment in some types of thyroid cancer]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 52:305-308. [PMID: 28441814 DOI: 10.3760/cma.j.issn.1673-0860.2017.04.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
As arising incidence of thyroid cancer, the treatment for thyroid carcinoma is becoming increasingly standardized. But there are different opinions on the treatment for some types of thyroid cancers, including the determination of operative opportunity, surgical method, and follow-up observation plan. There are mainly two categories of patients, namely the patients diagnosed as familial thyroid cancer mutation carriers through family screening, including medullary thyroid carcinoma and familial nonmedullary thyroid carcinoma, and the patients with thyroid microcarcinoma that can be observed after diagnosed by fine needle biopsy cytology. We will discuss current situation for the diagnosis and treatment of these patients.
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Affiliation(s)
- X Y Yang
- Department of Thyroid and Neck Tumor, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Y Yu
- Department of Thyroid and Neck Tumor, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - D P Li
- Department of Thyroid and Neck Tumor, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - L Dong
- Cancer Molecular Diagnosis Core, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
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154
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Fu P, Gao G, Song ZQ, Xu LW, Huang LS, Jiang L, Li JC, Zha FW, Dong L, Wang M. Preliminary Design of the Poloidal Field AC/DC Converter System for the ITER Coil Power Supply. Fusion Science and Technology 2017. [DOI: 10.13182/fst13-a24094] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- P. Fu
- Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), Hefei 230031, China
| | - G. Gao
- Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), Hefei 230031, China
| | - Z.H. Q. Song
- Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), Hefei 230031, China
| | - L. W. Xu
- Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), Hefei 230031, China
| | - L. S. Huang
- Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), Hefei 230031, China
| | - L. Jiang
- Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), Hefei 230031, China
| | - J. C. Li
- Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), Hefei 230031, China
| | - F. W. Zha
- Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), Hefei 230031, China
| | - L. Dong
- China International Nuclear Fusion Energy Program Execution Center, Beijing 100862, China
| | - M. Wang
- China International Nuclear Fusion Energy Program Execution Center, Beijing 100862, China
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155
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Zhang W, Hong R, Xue L, Ou Y, Liu X, Zhao Z, Xiao W, Dong D, Dong L, Fu M, Ma L, Lu N, Chen H, Song Y, Zhan Q. Piccolo mediates EGFR signaling and acts as a prognostic biomarker in esophageal squamous cell carcinoma. Oncogene 2017; 36:3890-3902. [PMID: 28263981 DOI: 10.1038/onc.2017.15] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 01/19/2017] [Accepted: 01/20/2017] [Indexed: 02/07/2023]
Abstract
The presynaptic cytomatrix protein Piccolo, encoded by PCLO, is frequently mutated and amplified in esophageal squamous cell carcinoma (ESCC), but its exact roles in ESCC remain unclear. Here we report that Piccolo expression correlates significantly with clinical stage, patient survival and tumor embolus. Functional studies demonstrate that PCLO knockdown remarkably attenuates ESCC malignancy in vitro and in vivo, and ectopic EGFR expression partially compensates for Piccolo loss. PCLO knockdown promotes ubiquitination and degradation of EGFR, which is associated with the negative regulatory effect of Piccolo on E3 ligase Siah1. An anti-Piccolo monoclonal antibody inhibited tumor proliferation in a mouse model of ESCC. These results demonstrate that Piccolo contributes to tumor aggressiveness in ESCC, likely by stabilizing EGFR and promoting EGFR-dependent signaling. Our results further suggest that Piccolo may represent a novel prognostic biomarker and therapeutic target for patients with ESCC.
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Affiliation(s)
- W Zhang
- State Key Laboratory of Molecular Oncology, Cancer Institute and Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Sichuan, China.,Guangdong Koheala Precision Medicine Institute, Guangzhou, China
| | - R Hong
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
| | - L Xue
- Department of Pathology, Cancer Institute and Cancer Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Y Ou
- State Key Laboratory of Molecular Oncology, Cancer Institute and Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Department of Neurosurgery, Tiantan Hospital, Capital Medical University, Beijing, China
| | - X Liu
- State Key Laboratory of Molecular Oncology, Cancer Institute and Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Institute of Cancer Stem Cell, Cancer Center, Dalian Medical University, Dalian, China
| | - Z Zhao
- State Key Laboratory of Molecular Oncology, Cancer Institute and Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - W Xiao
- State Key Laboratory of Molecular Oncology, Cancer Institute and Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - D Dong
- State Key Laboratory of Molecular Oncology, Cancer Institute and Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - L Dong
- State Key Laboratory of Molecular Oncology, Cancer Institute and Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - M Fu
- State Key Laboratory of Molecular Oncology, Cancer Institute and Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - L Ma
- State Key Laboratory of Molecular Oncology, Cancer Institute and Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - N Lu
- Department of Pathology, Cancer Institute and Cancer Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - H Chen
- Guangdong Koheala Precision Medicine Institute, Guangzhou, China
| | - Y Song
- State Key Laboratory of Molecular Oncology, Cancer Institute and Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Q Zhan
- State Key Laboratory of Molecular Oncology, Cancer Institute and Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Sichuan, China.,Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital &Institute, Beijing, China
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156
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Chen Y, James J, Dong L, Gale A. Measuring performance in the interpretation of chest radiographs: a pilot study. Clin Radiol 2017; 72:230-235. [DOI: 10.1016/j.crad.2016.11.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 10/18/2016] [Accepted: 11/04/2016] [Indexed: 10/20/2022]
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157
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Affiliation(s)
- B Liu
- From the Department of Radiation Oncology, The First Hospital, Jilin University, 71 Xinmin Street, Changchun 130021, China
| | - L Dong
- From the Department of Radiation Oncology, The First Hospital, Jilin University, 71 Xinmin Street, Changchun 130021, China
| | - X Wang
- Department of Otolaryngology, The First Hospital, Jilin University, 71 Xinmin Street, Changchun 130021, China
| | - T Han
- From the Department of Radiation Oncology, The First Hospital, Jilin University, 71 Xinmin Street, Changchun 130021, China
| | - Q Lin
- Department of Nuclear Medicine, The First Hospital, Jilin University, 71 Xinmin Street, Changchun 130021, China
| | - M Liu
- From the Department of Radiation Oncology, The First Hospital, Jilin University, 71 Xinmin Street, Changchun 130021, China
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158
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Dong L, Shi YK, Xu JP, Zhang EY, Liu JC, Li YX, Ni YM, Yang Q, Han T, Fu B, Chen J, Ren L, Wei SL, Chen H, Liu KX, Yu FX, Liu JS, Xiao MD, Wu SM, Zhang KL, Huang HL, Jiang SL, Qiao CH, Wang CS, Xu ZY, Zhou XM, Wang DJ, Ni LX, Xiao YB, Jiang SL, Zhang GM, Liang GY, Yang SY, Bo P, Zhong QJ, Zhang JB, Zhang X, Zhu YB, Teng X, Zhu P, Huang F, Xiao YM, Cao GQ, Tian H, Xia LM, Lu FL, Liu YQ, Liu DX, Xu H, Yuan Y, Li M, Chang C, Wu XC, Xu Z, Guo P, Bai YJ, Xue WB, Jiang XY, Na ZH, Zeng QY, Cai H, Wang YL, Xiong R, Jin S, Zheng XM, Wu D. [The multicenter study on the registration and follow-up of low anticoagulation therapy for the heart valve operation in China]. Zhonghua Yi Xue Za Zhi 2017; 96:1489-94. [PMID: 27266493 DOI: 10.3760/cma.j.issn.0376-2491.2016.19.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To investigate the optimal anticoagulation methods and monitoring strategy for Chinese patients undergoing heart valve replacement, which is potentially quite different from western populations. METHODS In this multicenter prospective cohort study, the anticoagulation and monitoring strategy data was acquired from 25 773 in-hospital patients in 35 medical centers and 20 519 patients in outpatient clinic in 11 medical centers from January 1st, 2011 to December 31th, 2015. RESULTS As for in-hospital patients, mean age of study population was (48.6±11.2) years old; main etiology of valve pathology was rheumatic (87.5%) origin among study cohort; 94.8% of study population received mechanical valve implantation; international normalized ratio (INR) monitoring (in all the study centers) and low-intensity anticoagulation strategy (31 hospitals chose target INR range of 1.5-2.5, and actual values of INR among 89.2% of 100 069 in-hospital monitoring samples were 1.5-2.5), with mean actual INR values of 1.84±0.53, and warfarin dosage of (2.82±0.93) mg/d were widely adopted among the study centers; strategies of in-hospital warfarin administration were similar in all the study centers; complication rates of low-intensity anticoagulation strategy were low in severe hemorrhage (0.02%), thrombosis (0.05%), and thromboembolism (0.05%) events, without anticoagulation-related death.As for 18 974 outpatient clinic patients, the follow-up rate was 92.47%, with a total of 30 012 patient-years (Pty). Anticoagulation-related morbidity and mortality rates were 0.67% and 0.15% Pty; major hemorrhage morbidity and mortality rates were 0.25% and 0.13% Pty; thromboembolism morbidity and mortality rates were 0.45% and 0.03% Pty.The mean dosage of warfarin daily dosage was (2.85±1.23) mg/d and INR value was 1.82±0.57.No significant regional difference in the intensity of anticoagulation therapy was noted during the study. CONCLUSIONS INR can be used as a normalized indicator for intensity of anticoagulation therapy in China.The optimal anticoagulation intensity with INR range from 1.5 to 2.5 is safe and effective for Chinese patients with heart valve replacement, and there is no significant regional difference in the intensity of anticoagulation therapy.
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Affiliation(s)
- L Dong
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
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159
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Huang Y, Wang X, Liu C, Wang Y, Dong L. Kaolinite induced control of particulate lead and cadmium emissions during fluidized bed waste incineration. ASIA-PAC J CHEM ENG 2017. [DOI: 10.1002/apj.2075] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Huang
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment; Southeast University; Nanjing 210096 China
| | - X. Wang
- Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control, School of Energy and Mechanical Engineering; Nanjing Normal University; Nanjing 210042 China
| | - C. Liu
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment; Southeast University; Nanjing 210096 China
| | - Y. Wang
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment; Southeast University; Nanjing 210096 China
| | - L. Dong
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment; Southeast University; Nanjing 210096 China
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160
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Pan L, Zhao H, Yu Q, Bai L, Dong L. miR397/Laccase Gene Mediated Network Improves Tolerance to Fenoxaprop- P-ethyl in Beckmannia syzigachne and Oryza sativa. Front Plant Sci 2017; 8:879. [PMID: 28588605 PMCID: PMC5440801 DOI: 10.3389/fpls.2017.00879] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 05/10/2017] [Indexed: 05/03/2023]
Abstract
Herbicide resistance can be either target-site or non-target-site based. The molecular mechanisms underlying non-target-site resistance (NTSR) are poorly understood, especially at the level of gene expression regulation. MicroRNAs (miRNAs) represent key post-transcriptional regulators of eukaryotic gene expression and play important roles in stress responses. In this study, the miR397 gene from Beckmannia syzigachne (referred to as bsy-miR397) was functionally characterized to determine its role in regulating fenoxaprop-P-ethyl resistance. We showed that (1) bsy-miR397 transcript level is constitutively higher in resistant than in sensitive B. syzigachne plants, whereas bsy-Laccase expression and activity show the opposite trend, and (2) bsy-miR397 suppresses the expression of bsy-Laccase in tobacco, indicating that it negatively regulates bsy-Laccase at the transcriptional level. We found evidences that miR397/laccase regulation might be involved in fenoxaprop-P-ethyl NTSR. First, the rice transgenic line overexpressing OXmiR397 showed improved fenoxaprop-P-ethyl tolerance. Second, following activation of bsy-Laccase gene expression by CuSO4 treatment, fenoxaprop resistance in B. syzigachne tended to decrease. Therefore, we suggest that bsy-miR397 might play a role in fenoxaprop-P-ethyl NTSR in B. syzigachne by down-regulating laccase expression, potentially leading to the enhanced expression of three oxidases/peroxidases genes to introduce an active moiety into herbicide molecules in Phase-2 metabolism. Bsy-miR397, bsy-Laccase, and other regulatory components might form a regulatory network to detoxify fenoxaprop-P-ethyl in B. syzigachne, supported by the differential expression of transcription factors and oxidases/peroxidases in the rice transgenic line overexpressing OXmiR397. This implies how down-regulation of a gene (laccase) can enhance NTSR. Our findings shed light on the daunting task of understanding and managing complex NTSR in weedy plant species.
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Affiliation(s)
- Lang Pan
- College of Plant Protection, Nanjing Agricultural UniversityNanjing, China
- Key Laboratory of Integrated Management of Crop Diseases and Pests – Nanjing Agricultural University, Ministry of EducationNanjing, China
| | - Hongwei Zhao
- College of Plant Protection, Nanjing Agricultural UniversityNanjing, China
- Key Laboratory of Integrated Management of Crop Diseases and Pests – Nanjing Agricultural University, Ministry of EducationNanjing, China
| | - Qin Yu
- Australian Herbicide Resistance Initiative (AHRI), School of Agriculture & Environment, University of Western Australia, PerthWA, Australia
| | - Lianyang Bai
- Biotechnology Research Center, Hunan Academy of Agricultural SciencesChangsha, China
| | - Liyao Dong
- College of Plant Protection, Nanjing Agricultural UniversityNanjing, China
- Key Laboratory of Integrated Management of Crop Diseases and Pests – Nanjing Agricultural University, Ministry of EducationNanjing, China
- *Correspondence: Liyao Dong,
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161
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Dong L, Bai J, Jiang X, Yang MM, Zheng Y, Zhang H, Lin D. The gene polymorphisms of IL-8(-251T/A) and IP-10(-1596C/T) are associated with susceptibility and progression of type 2 diabetic retinopathy in northern Chinese population. Eye (Lond) 2016; 31:601-607. [PMID: 27935598 DOI: 10.1038/eye.2016.287] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 11/07/2016] [Indexed: 10/20/2022] Open
Abstract
PurposeThe aim of the present study is to investigate the association of the polymorphism of two genes in CXC chemokine family, interleukin-8 (IL-8) and interferon-inducible protein 10 (IP-10), with both susceptibility and progression of DR in T2D population of northern China.Patients and methodsA total of 1043 eligible type 2 diabetic patients from Heilongjiang of northern China were recruited for this study. They were grouped into: with diabetic retinopathy (DR, 528 cases) and without diabetic retinopathy (DNR, 515 cases). Single nucleotide polymorphism (SNP) genotyping of IL-8(-251T/A) and IP-10(-1596C/T) was performed by polymerase chain reaction. Multivariate analysis and stepwise multiple logistic progression analysis were conducted to evaluate the association between gene SNP and DR susceptibility and progression. Pooled odds ratio (OR) with 95% confidence interval (CI) was applied to assess the strength of the association among study groups.ResultsThe occurring of IL-8(-251) AA genotype was correlated with susceptibility (OR: 2.286, 95% CI: 1.382-3.782, P=0.001) and progression of high-risk proliferative diabetic retinopathy (PDR) (OR: 0.354, 95% CI: 0.162-0.770, P=0.009). Reversely, T allele of IP-10 (-1596) C/T was correlated with a reduced risk of DR (OR: 0.341, 95% CI: 0.249-0.466, P<0.001). However, gene polymorphisms of IL-8-251T/A and IP-10-1596C/T were not associated with diabetic macular edema (DME)(P>0.05).ConclusionsAA genotype of IL-8-251T/A was closely correlated to DR and high-risk proliferative diabetic retinopathy (PDR). -1596T allele of the IP-10 is a beneficial genotype for DR.
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Affiliation(s)
- L Dong
- Key Laboratory of Harbin Medical University Eye Center in Eye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - J Bai
- Key Laboratory of Harbin Medical University Eye Center in Eye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - X Jiang
- Key Laboratory of Harbin Medical University Eye Center in Eye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - M-M Yang
- Key Laboratory of Harbin Medical University Eye Center in Eye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Y Zheng
- Key Laboratory of Harbin Medical University Eye Center in Eye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - H Zhang
- Key Laboratory of Harbin Medical University Eye Center in Eye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - D Lin
- Department of Pharmacology, New York Medical College, Valhalla, NY, USA
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162
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Affiliation(s)
- W. Shen
- Chongqing University, China; Chongqing University, China
| | | | - L. Dong
- Chongqing University, China; Chongqing University, China
| | - S. Wei
- Chongqing University, China; Chongqing University, China
| | - J. Li
- Institute of Process Engineering,Chinese Academy of Sciences, China
| | - V. Gerbaud
- Université de Toulouse, France; CNRS, France
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163
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Zhang H, Wang X, Dong L, Lv H, Li W, Song Z, Li L, Zhou S, Qiu L, Qian Z, Liu X, Feng L, Meng B, Fu K, Wang X, Pan-Hammarström Q, Wang P. 332O Co-expression of PD-L1 and p-AKT is associated with poor prognosis in diffuse large B-cell lymphoma via PD-1/PD-L1 axis activating intracellular AKT/mTOR pathway in tumor cells. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw586.001] [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: 11/13/2022] Open
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164
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Green G, Giap F, Lepage R, Dong L, Rossi C, Urbanic J, Giap H. Acute Toxicities and Clinical Outcomes of Intensity Modulated Proton Therapy for Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1715] [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: 10/20/2022]
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165
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Dong L, Chen L, Shi T, Wei M, Zhang H, Li Y, She L, Yan Z. Combined monitoring of intracranial pressure and bispectral index in patients with severe craniocerebral trauma post-operatively. Clin Neurol Neurosurg 2016; 148:42-4. [DOI: 10.1016/j.clineuro.2016.06.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 06/01/2016] [Accepted: 06/05/2016] [Indexed: 10/21/2022]
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166
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Mao QQ, Chen JJ, Dong L, Zhong L, Sun X. Krüppel-like factor 2 suppresses growth and invasion of gastric cancer cells in vitro and in vivo. J BIOL REG HOMEOS AG 2016; 30:703-712. [PMID: 27655487] [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: 06/06/2023]
Abstract
Krüppel-like factor 2 (KLF2), a novel tumor-suppressor gene, is implicated in diverse cellular processes, including cell growth, apoptosis, and invasion. However, the role and action mechanisms of KLF2 in gastric cancer (GC) need be further elucidated. The expression of KLF2 was investigated by immunohistochemical assay in human GC tissues, and lentivirus-mediated KLF2 overexpression was transfected into GC cells (AGS and HGC-27) for assessing cell proliferation and invasion, respectively indicated by MTT and Transwell assays. Subcutaneous GC tumor models were constructed for estimating tumor growth in vivo. As a result, the expression level of KLF2 was decreased in GC tissues compared with the para-carcinoma tissues (31.03% vs 53.45%, P=0.035), and negatively correlated with the lymph node metastasis in GC patients (P=0.02). Moreover, overexpression of KLF2 inhibited the cell proliferation and invasive potential and downregulated the protein expression of PCNA, Bcl-2 and MMP-9 in GC cells. The result in vivo showed KLF2 overexpression reduced the xenograft tumor growth. In conclusion, our findings indicate that KLF2 may function as a tumor suppressor involved in the progression of human GC.
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Affiliation(s)
- Q Q Mao
- Gastroenterology Department and Endoscopy Center of Fudan University Affiliated Huashan Hospital North Hospital, Shanghai, China
| | - J J Chen
- Gastroenterology Department and Endoscopy Center of Fudan University Affiliated Huashan Hospital North Hospital, Shanghai, China
| | - L Dong
- Gastroenterology Department and Endoscopy Center of Fudan University Affiliated Huashan Hospital North Hospital, Shanghai, China
| | - L Zhong
- Gastroenterology Department and Endoscopy Center of Fudan University Affiliated Huashan Hospital North Hospital, Shanghai, China
| | - X Sun
- Gastroenterology Department and Endoscopy Center of Fudan University Affiliated Huashan Hospital North Hospital, Shanghai, China
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167
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Qiu X, Fu Q, Meng C, Yu S, Zhan Y, Dong L, Ren T, Sun Y, Tan L, Song C, Han X, Ding C. Kinetic analysis of RNA editing of Newcastle disease virus P gene in the early period of infection. Acta Virol 2016; 60:71-7. [PMID: 26982470 DOI: 10.4149/av_2016_01_71] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
UNLABELLED As a paramyxovirus, Newcastle disease virus (NDV) has the ability to edit its P (phosphoprotein) gene to synthesize three kinds of viral protein (P, V and W). It is technically very difficult to differentiate P, V and W mRNAs, and little was known about NDV regulation of RNA-editing frequency. To investigate the rules of NDV RNA editing, the ratio of the P gene-derived transcripts (P, V and W) was determined by sequencing at different time points post-infection. The results showed unstable ratio of V and W mRNA at different time points, and the frequency of NDV editing was significantly increased at the early period of infection (P KEYWORDS Newcastle disease virus; phosphoprotein; RNA editing; G insertion.
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168
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Pan L, Wang Z, Cai J, Gao H, Zhao H, Dong L. High-throughput sequencing reveals differential regulation of miRNAs in fenoxaprop-P-ethyl-resistant Beckmannia syzigachne. Sci Rep 2016; 6:28725. [PMID: 27353151 PMCID: PMC4926119 DOI: 10.1038/srep28725] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 06/09/2016] [Indexed: 12/02/2022] Open
Abstract
Non-target site resistance (NTSR) to herbicides is an increasing concern for weed control. The majority of previous studies have focused on metabolic resistance mechanisms of NTSR, but no research exists on gene regulation mechanisms behind herbicide resistance, such as microRNA (miRNA). Here, we identified 3 American sloughgrass (Beckmannia syzigachne Steud.) populations containing fenoxaprop-P-ethyl-resistant plants. We then constructed small RNA libraries and subjected them to deep sequencing and bioinformatics analyses. Forty known and 36 potentially novel, predicted miRNAs were successfully identified. Of these, we identified 3 conserved, predicted candidate NTSR-determinant miRNAs and their potential corresponding target genes, as well as 4 novel potential miRNAs with high count. Target gene prediction and annotation indicated that these 7 differentially expressed miRNAs potentially play a role in regulating specific stress-responsive genes, very likely related to herbicide resistance. Expression profiles were determined with quantitative real-time PCR. The present study is a novel, large-scale characterization of weed miRNAs. The results should further our understanding of miRNA expression profiles associated with herbicide resistance, allowing for the development of more effective weed management strategies.
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Affiliation(s)
- Lang Pan
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China.,Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing 210095, China
| | - Zhaoyun Wang
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China.,Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing 210095, China
| | - Jia Cai
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China.,Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing 210095, China
| | - Haitao Gao
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China.,Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing 210095, China
| | - Hongwei Zhao
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China.,Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing 210095, China
| | - Liyao Dong
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China.,Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing 210095, China
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169
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Fong de los Santos L, Dong L, Greener A, Johnson J, Johnson P, Kim G, Mechalakos J, Napolitano B, Parker S, Schofield D, Wells M, Yorke E, Ford E. TU-D-201-02: Medical Physics Practices for Plan and Chart Review: Results of AAPM Task Group 275 Survey. Med Phys 2016. [DOI: 10.1118/1.4957468] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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170
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Xu ED, Xiao YF, Wang JJ, Dong L. Association study between matrix metalloproteinase-9 gene (MMP9) polymorphisms and the risk of Henoch-Schönlein purpura in children. Genet Mol Res 2016; 15:gmr8095. [PMID: 27323137 DOI: 10.4238/gmr.15028095] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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
Henoch-Schönlein purpura nephritis (HSPN), the most serious long-term complication of Henoch-Schönlein purpura, is one of the most common renal diseases in children. Matrix metalloproteinase-9 (MMP-9) is implicated in the pathogenesis of renal diseases. Genomic DNA was isolated from the venous blood leukocytes of 220 unrelated patients with HSPN and 205 unrelated healthy individuals. To identify markers contributing to genetic susceptibility to HSPN, this study examined the potential association between HSPN and four single nucleotide polymorphisms of the MMP-9 gene (MMP9) (rs17576, rs3918254, rs3787268, and rs2236416) by using the MassARRAY system. The allelic or genotypic frequencies of the rs17576 (exon 6) and rs3918254 (intron 6) polymorphisms in HSPN were significantly different from those in the healthy controls. The HSPN subjects had a significantly higher frequency of the G allele of rs17576 (χ(2) = 8.416, P = 0.004, OR = 1.556, 95%CI = 1.153-2.100) and a significantly lower frequency of the A allele of rs2236416 (χ(2) = 10.363, P = 0.001, OR = 0.545, 95%CI = 0.375-0.791). Linkage disequilibrium was observed in two blocks (D' > 0.9; r(2) > 0.8 in control). In block 1, significantly more G-C haplotypes (P = 0.011) and significantly fewer A-C haplotypes (P = 0.008) were found in the HSPN subjects. In block 2, significantly more G-G haplotypes (P = 0.016) and significantly fewer A-G haplotypes (P = 0.006) were found in the HSPN subjects. These observations suggest that the rs17576 and rs3918254 polymorphisms of MMP9 are associated with HSPN.
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Affiliation(s)
- E D Xu
- Department of Pediatrics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Y F Xiao
- Department of Pediatrics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - J J Wang
- Department of Pediatrics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - L Dong
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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171
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Langner U, Langen K, Eley J, Zhu M, Yu J, Chung H, Polf J, Dong L. SU-F-T-162: Comparison of Beam Data for Two Varian ProBeam Pencil Beam Scanning Proton Systems. Med Phys 2016. [DOI: 10.1118/1.4956298] [Citation(s) in RCA: 1] [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: 11/07/2022] Open
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172
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Yao H, Zhou D, Kong D, Pan C, Dong L, Wang Y, Shu X. New echocardiographic indexes for evaluating cardiac function in idiopathic pulmonary arterial hypertension using three-dimensional echocardiography. Acta Cardiol 2016; 71:359-366. [PMID: 27594131 DOI: 10.2143/ac.71.3.3152096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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173
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Li Z, Dong L, Huang Q, Wang X. Bacterial communities and volatile compounds in Doubanjiang, a Chinese traditional red pepper paste. J Appl Microbiol 2016; 120:1585-94. [DOI: 10.1111/jam.13130] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 02/11/2016] [Accepted: 03/07/2016] [Indexed: 11/28/2022]
Affiliation(s)
- Z. Li
- Institute of Agro-products Processing Science and Technology; Sichuan Academy of Agricultural Sciences; Chengdu Sichuan China
| | - L. Dong
- Institute of Agro-products Processing Science and Technology; Sichuan Academy of Agricultural Sciences; Chengdu Sichuan China
| | - Q. Huang
- Institute of Agro-products Processing Science and Technology; Sichuan Academy of Agricultural Sciences; Chengdu Sichuan China
| | - X. Wang
- Institute of Agro-products Processing Science and Technology; Sichuan Academy of Agricultural Sciences; Chengdu Sichuan China
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174
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Su R, Dong L, Zou D, Zhao H, Ren Y, Li F, Yi P, Li L, Zhu Y, Ma Y, Wang J, Wang F, Yu J. microRNA-23a, -27a and -24 synergistically regulate JAK1/Stat3 cascade and serve as novel therapeutic targets in human acute erythroid leukemia. Oncogene 2016; 35:6001-6014. [DOI: 10.1038/onc.2016.127] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 03/05/2016] [Accepted: 03/07/2016] [Indexed: 01/01/2023]
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175
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He J, He Y, Wang W, Han Z, He J, Chen N, Dong L, Tao S, Zhang W, Zhu F. Genomic full-length sequence of a novel HLA-A*11:01:01:02 allele was identified in a Chinese bone marrow donor. Int J Immunogenet 2016; 43:184-6. [DOI: 10.1111/iji.12261] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Revised: 03/08/2016] [Accepted: 04/04/2016] [Indexed: 11/26/2022]
Affiliation(s)
- J. He
- Blood Center of Zhejiang Province; Hangzhou Zhejiang China
- Key Laboratory of Blood Safety Research; Ministry of Health; Hangzhou Zhejiang China
- Zhejiang Provincial Key Laboratory of Blood Safety Research; Hangzhou Zhejiang China
| | - Y. He
- Blood Center of Zhejiang Province; Hangzhou Zhejiang China
- Key Laboratory of Blood Safety Research; Ministry of Health; Hangzhou Zhejiang China
- Zhejiang Provincial Key Laboratory of Blood Safety Research; Hangzhou Zhejiang China
| | - W. Wang
- Blood Center of Zhejiang Province; Hangzhou Zhejiang China
- Key Laboratory of Blood Safety Research; Ministry of Health; Hangzhou Zhejiang China
- Zhejiang Provincial Key Laboratory of Blood Safety Research; Hangzhou Zhejiang China
| | - Z. Han
- Blood Center of Zhejiang Province; Hangzhou Zhejiang China
- Key Laboratory of Blood Safety Research; Ministry of Health; Hangzhou Zhejiang China
- Zhejiang Provincial Key Laboratory of Blood Safety Research; Hangzhou Zhejiang China
| | - J. He
- Blood Center of Zhejiang Province; Hangzhou Zhejiang China
- Key Laboratory of Blood Safety Research; Ministry of Health; Hangzhou Zhejiang China
- Zhejiang Provincial Key Laboratory of Blood Safety Research; Hangzhou Zhejiang China
| | - N. Chen
- Blood Center of Zhejiang Province; Hangzhou Zhejiang China
- Key Laboratory of Blood Safety Research; Ministry of Health; Hangzhou Zhejiang China
- Zhejiang Provincial Key Laboratory of Blood Safety Research; Hangzhou Zhejiang China
| | - L. Dong
- Blood Center of Zhejiang Province; Hangzhou Zhejiang China
- Key Laboratory of Blood Safety Research; Ministry of Health; Hangzhou Zhejiang China
- Zhejiang Provincial Key Laboratory of Blood Safety Research; Hangzhou Zhejiang China
| | - S. Tao
- Blood Center of Zhejiang Province; Hangzhou Zhejiang China
- Key Laboratory of Blood Safety Research; Ministry of Health; Hangzhou Zhejiang China
- Zhejiang Provincial Key Laboratory of Blood Safety Research; Hangzhou Zhejiang China
| | - W. Zhang
- Blood Center of Zhejiang Province; Hangzhou Zhejiang China
- Key Laboratory of Blood Safety Research; Ministry of Health; Hangzhou Zhejiang China
- Zhejiang Provincial Key Laboratory of Blood Safety Research; Hangzhou Zhejiang China
| | - F. Zhu
- Blood Center of Zhejiang Province; Hangzhou Zhejiang China
- Key Laboratory of Blood Safety Research; Ministry of Health; Hangzhou Zhejiang China
- Zhejiang Provincial Key Laboratory of Blood Safety Research; Hangzhou Zhejiang China
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176
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Park P, Li H, Dong L, Chang J, Zhu X. SP-0501: Adaptive practice and techniques in proton therapy of the lung. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)31751-0] [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: 10/21/2022]
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177
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He Y, Wang W, Han Z, He J, Chen N, Dong L, Tao S, Zhang W, He J, Zhu F, Lv H. HLA-B allele dropout in PCR sequence-specific oligonucleotide probe typing due to intronic polymorphism in the novel B*58:01:01:02 allele. Int J Immunogenet 2016; 43:180-3. [PMID: 27016176 DOI: 10.1111/iji.12258] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 02/04/2016] [Accepted: 03/06/2016] [Indexed: 11/27/2022]
Abstract
Currently, Luminex technology based on the PCR sequence-specific oligonucleotide (SSO) probe method has been widely used for HLA genotyping in the immunogenetics laboratories. Here, we reported a case with HLA-B allele dropout by Luminex technology. The initial HLA-B result of the Luminex method with a commercial agent kit was inconclusive, and then, the result of PCR-SBT technology indicated the dropout as a HLA-B*58 allele. Subsequently, the full-length sequence of HLA-B allele was determined by TOPO-TA cloning, and a novel allele B*58:01:01:02 was identified in the individual. Compared with HLA-B*58:01:01:01, the novel allele showed some nucleotides difference at 509 C>T, 521 T>G and CCC insertion in position 503 of intron 2. According to the full-length sequence, the new mutations of intron 2 were contributed to HLA-B locus allele dropout in the sample. Our results indicated multiplatform should be used to improve the HLA typing accuracy when a conclusive HLA genotype cannot be determined.
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Affiliation(s)
- Y He
- Blood Center of Zhejiang Province, Hangzhou, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, China.,Zhejiang Provincial Key Laboratory of Blood Safety Research, Hangzhou, Zhejiang, China
| | - W Wang
- Blood Center of Zhejiang Province, Hangzhou, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, China
| | - Z Han
- Blood Center of Zhejiang Province, Hangzhou, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, China
| | - J He
- Blood Center of Zhejiang Province, Hangzhou, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, China.,Zhejiang Provincial Key Laboratory of Blood Safety Research, Hangzhou, Zhejiang, China
| | - N Chen
- Blood Center of Zhejiang Province, Hangzhou, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, China
| | - L Dong
- Blood Center of Zhejiang Province, Hangzhou, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, China
| | - S Tao
- Blood Center of Zhejiang Province, Hangzhou, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, China.,Zhejiang Provincial Key Laboratory of Blood Safety Research, Hangzhou, Zhejiang, China
| | - W Zhang
- Blood Center of Zhejiang Province, Hangzhou, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, China.,Zhejiang Provincial Key Laboratory of Blood Safety Research, Hangzhou, Zhejiang, China
| | - J He
- Blood Center of Zhejiang Province, Hangzhou, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, China.,Zhejiang Provincial Key Laboratory of Blood Safety Research, Hangzhou, Zhejiang, China
| | - F Zhu
- Blood Center of Zhejiang Province, Hangzhou, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, China.,Zhejiang Provincial Key Laboratory of Blood Safety Research, Hangzhou, Zhejiang, China
| | - H Lv
- Blood Center of Zhejiang Province, Hangzhou, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, China.,Zhejiang Provincial Key Laboratory of Blood Safety Research, Hangzhou, Zhejiang, China
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178
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Guo YL, Lu XL, Cheng Y, Shi HT, Xie DH, Li H, Dong L. [Combination measurement of liver and spleen stiffness with portal vein width to evaluate risk of bleeding in esophageal and gastric varices patients]. Zhonghua Gan Zang Bing Za Zhi 2016; 24:56-61. [PMID: 26983391 DOI: 10.3760/cma.j.issn.1007-3418.2016.01.011] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To evaluate the utility of combined liver stiffness measurement (LSM) and spleen stiffness measurement (SSM), by transient elastography, along with measurement of portal vein width (PVW) for evaluating risk of bleeding in patients with esophageal and gastric varices (EV). METHODS A total of 73 patients with cirrhosis who were treated in the Department of Gastroenterology of the Second Affiliated Hospital of Xi'an Jiaotong University between April 2014 and March 2015 were included in the study. Child-Pugh classifications were obtained, portal vein widths were measured by ultrasound, liver and spleen stiffness were measured by transient elastography using FibroTouch®. Patients were examined by electronic endoscopy, upper abdominal computed tomography and standard serum testing. The serum indexes of fibrosis (aspartate aminotransferase (AST) to platelet ratio index (APRI), and AST to alanine aminotransferase ratio (AAR)) were calculated. Patients were grouped according to the results of gastroscopy, with severe (EV) and high risk of bleeding comprising group A and no or mild-to-moderate EV and low risk of bleeding comprising group B. Statistical analysis was carried out with t-test for continuous variables and χ(2) test for categorical variables to first screen out variables different between groups then the correlation with severe EV was assessed by generating receiver operating characteristic (ROC) curves. Lastly, binary logistic regression was used to evaluate the performance of combined variables for diagnosing severe EV and their predictive value for risk of bleeding. RESULTS Group A and B showed significant differences for LSM, SSM and PVW (all P < 0.05). The cutoff values for diagnosing severe EV were 23.4 kPa for LSM, 40.3 kPa for SSM and 11.5 mm for PVW, with areas under the ROC curve (AUROC) as 0.655, 0.788 and 0.709 respectively. For combined measurements, the AUROC was 0.773 for LSM plus PVW and 0.840 for LSM plus PVW (with highest diagnostic performance). CONCLUSIONS Combination of SSM plus PVW measurement shows high diagnostic performance for evaluating severe EV, and better performance than LSM plus SSM plus PVW and LSM plus PVW, with good predictive value for risk of EV bleeding.
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Affiliation(s)
- Y L Guo
- Department of Gastroenterology, the Second Affiliated Hospital of Xi'an Jiaotong University; Gastrointestinal Motility Disorders Laboratory of Shaanxi Province; Xi'an 710004, China
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179
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Zhao GX, Dong PP, Peng R, Li J, Zhang DY, Wang JY, Shen XZ, Dong L, Sun JY. Expression, localization and possible functions of aquaporins 3 and 8 in rat digestive system. Biotech Histochem 2016; 91:269-76. [DOI: 10.3109/10520295.2016.1144079] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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180
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Pan L, Gao H, Xia W, Zhang T, Dong L. Establishing a herbicide-metabolizing enzyme library in Beckmannia syzigachne to identify genes associated with metabolic resistance. J Exp Bot 2016; 67:1745-57. [PMID: 26739863 DOI: 10.1093/jxb/erv565] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Non-target site resistance (NTSR) to herbicides is an increasing concern for weed control. Metabolic herbicide resistance is an important mechanism for NTSR. However, little is known about metabolic resistance at the genetic level. In this study, we have identified three fenoxaprop-P-ethyl-resistant American sloughgrass (Beckmannia syzigachne Steud.) populations, in which the molecular basis for NTSR remains unclear. To reveal the mechanisms of metabolic resistance, the genes likely to be involved in herbicide metabolism (e.g. for cytochrome P450s, esterases, hydrolases, oxidases, peroxidases, glutathione S-transferases, glycosyltransferases, and transporter proteins) were isolated using transcriptome sequencing, in combination with RT-PCR (reverse transcription-PCR) and RACE (rapid amplification of cDNA ends). Consequently, we established a herbicide-metabolizing enzyme library containing at least 332 genes, and each of these genes was cloned and the sequence and the expression level compared between the fenoxaprop-P-ethyl-resistant and susceptible populations. Fifteen metabolic enzyme genes were found to be possibly involved in fenoxaprop-P-ethyl resistance. In addition, we found five metabolizing enzyme genes that have a different gene sequence in plants of susceptible versus resistant B. syzigachne populations. These genes may be major candidates for herbicide metabolic resistance. This established metabolic enzyme library represents an important step forward towards a better understanding of herbicide metabolism and metabolic resistance in this and possibly other closely related weed species. This new information may help to understand weed metabolic resistance and to develop novel strategies of weed management.
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Affiliation(s)
- Lang Pan
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing 210095, China
| | - Haitao Gao
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing 210095, China
| | - Wenwen Xia
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing 210095, China
| | - Teng Zhang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing 210095, China
| | - Liyao Dong
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing 210095, China
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181
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He Y, Zhang W, Chen N, Wang W, He J, Han Z, Tao S, Dong L, He J, Zhu F, Lv H. HLA-A, -B and -DRB1 allele and haplotype frequencies of 8333 Chinese Han from the Zhejiang province, China. Int J Immunogenet 2016; 43:86-95. [PMID: 26919533 DOI: 10.1111/iji.12254] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 01/05/2016] [Accepted: 01/31/2016] [Indexed: 11/30/2022]
Abstract
The distribution of human leucocyte antigen (HLA) allele and haplotype is varied among different ethnic populations. In this study, HLA-A, -B and -DRB1 allele and haplotype frequencies were determined in 8333 volunteer bone marrow donors of Zhejiang Han population using the polymerase chain reaction sequence-based typing. A total of 52 HLA-A, 96 HLA-B and 61 HLA-DRB1 alleles were found. Of these, the top three frequent alleles in HLA-A, HLA-B and HLA-DRB1 loci, respectively, were A*11:01 (24.53%), A*24:02 (17.35%), A*02:01 (11.58%); B*40:01 (15.67%), B*46:01 (11.87%), B*58:01 (9.05%); DRB1*09:01 (17.54%),DRB1*12:02 (9.64%) and DRB1*08:03 (8.65%). A total of 171 A-B-DRB1 haplotypes with a frequency of >0.1% were presented and the five most common haplotypes were A*33:03-B*58:01- DRB1*03:01, A*02:07-B*46:01-DRB1*09:01, A*30:01-B*13:02-DRB1*07:01, A*33:03-B*58:01-RB1*13:02 and A*11:01-B*15:02-DRB1*12:02. The information will be useful for selecting unrelated bone marrow donors and for anthropology studies and pharmacogenomics analysis.
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Affiliation(s)
- Y He
- Blood Center of Zhejiang Province, Hangzhou, Zhejiang, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, Zhejiang, China.,Zhejiang Provincial Key Laboratory of Blood Safety Research, Hangzhou, Zhejiang, China
| | - W Zhang
- Blood Center of Zhejiang Province, Hangzhou, Zhejiang, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, Zhejiang, China.,Zhejiang Provincial Key Laboratory of Blood Safety Research, Hangzhou, Zhejiang, China
| | - N Chen
- Blood Center of Zhejiang Province, Hangzhou, Zhejiang, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, Zhejiang, China
| | - W Wang
- Blood Center of Zhejiang Province, Hangzhou, Zhejiang, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, Zhejiang, China
| | - J He
- Blood Center of Zhejiang Province, Hangzhou, Zhejiang, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, Zhejiang, China.,Zhejiang Provincial Key Laboratory of Blood Safety Research, Hangzhou, Zhejiang, China
| | - Z Han
- Blood Center of Zhejiang Province, Hangzhou, Zhejiang, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, Zhejiang, China
| | - S Tao
- Blood Center of Zhejiang Province, Hangzhou, Zhejiang, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, Zhejiang, China.,Zhejiang Provincial Key Laboratory of Blood Safety Research, Hangzhou, Zhejiang, China
| | - L Dong
- Blood Center of Zhejiang Province, Hangzhou, Zhejiang, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, Zhejiang, China
| | - J He
- Blood Center of Zhejiang Province, Hangzhou, Zhejiang, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, Zhejiang, China.,Zhejiang Provincial Key Laboratory of Blood Safety Research, Hangzhou, Zhejiang, China
| | - F Zhu
- Blood Center of Zhejiang Province, Hangzhou, Zhejiang, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, Zhejiang, China.,Zhejiang Provincial Key Laboratory of Blood Safety Research, Hangzhou, Zhejiang, China
| | - H Lv
- Blood Center of Zhejiang Province, Hangzhou, Zhejiang, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, Zhejiang, China.,Zhejiang Provincial Key Laboratory of Blood Safety Research, Hangzhou, Zhejiang, China
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182
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Dong L, Bi K, Huang N, Chen C. Biological analysis of chronic lymphocytic leukemia: integration of mRNA and microRNA expression profiles. Genet Mol Res 2016; 15:gmr7170. [DOI: 10.4238/gmr.15017170] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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183
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Kumar S, Li X, Dong L, Yu G, Shelton B, Chen L, Stevens S, Kudrimoti M. Measurement and Clinical Correlation of Head and Neck Tumor Hemodynamic Responses to Radiation Therapy. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.311] [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: 10/22/2022]
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184
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Luo M, Deng X, Dong L, Shen X. Oxidized multi-walled carbon nanotubes show no sign of cytotoxicity on RAW 264.7 macrophages. Toxicol Lett 2015. [DOI: 10.1016/j.toxlet.2015.08.634] [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: 10/23/2022]
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185
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Zhang W, He Y, Wang W, Han Z, He J, Chen N, Dong L, Tao S, He J, Zhu F, Lv H. HLA-A locus allelic dropout in Sanger sequence-based typing due to the single nucleotide polymorphism of exon 1. Int J Immunogenet 2015; 42:457-60. [DOI: 10.1111/iji.12234] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 07/20/2015] [Accepted: 07/24/2015] [Indexed: 11/26/2022]
Affiliation(s)
- W. Zhang
- Blood Center of Zhejiang Province; Hangzhou Zhejiang China
- Key Laboratory of Blood Safety Research; Ministry of Health; Hangzhou Zhejiang China
| | - Y. He
- Blood Center of Zhejiang Province; Hangzhou Zhejiang China
- Key Laboratory of Blood Safety Research; Ministry of Health; Hangzhou Zhejiang China
| | - W. Wang
- Blood Center of Zhejiang Province; Hangzhou Zhejiang China
- Key Laboratory of Blood Safety Research; Ministry of Health; Hangzhou Zhejiang China
| | - Z. Han
- Blood Center of Zhejiang Province; Hangzhou Zhejiang China
- Key Laboratory of Blood Safety Research; Ministry of Health; Hangzhou Zhejiang China
| | - J. He
- Blood Center of Zhejiang Province; Hangzhou Zhejiang China
- Key Laboratory of Blood Safety Research; Ministry of Health; Hangzhou Zhejiang China
| | - N. Chen
- Blood Center of Zhejiang Province; Hangzhou Zhejiang China
- Key Laboratory of Blood Safety Research; Ministry of Health; Hangzhou Zhejiang China
| | - L. Dong
- Blood Center of Zhejiang Province; Hangzhou Zhejiang China
- Key Laboratory of Blood Safety Research; Ministry of Health; Hangzhou Zhejiang China
| | - S. Tao
- Blood Center of Zhejiang Province; Hangzhou Zhejiang China
- Key Laboratory of Blood Safety Research; Ministry of Health; Hangzhou Zhejiang China
| | - J. He
- Blood Center of Zhejiang Province; Hangzhou Zhejiang China
- Key Laboratory of Blood Safety Research; Ministry of Health; Hangzhou Zhejiang China
| | - F. Zhu
- Blood Center of Zhejiang Province; Hangzhou Zhejiang China
- Key Laboratory of Blood Safety Research; Ministry of Health; Hangzhou Zhejiang China
| | - H. Lv
- Blood Center of Zhejiang Province; Hangzhou Zhejiang China
- Key Laboratory of Blood Safety Research; Ministry of Health; Hangzhou Zhejiang China
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186
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Dong L, Chen CY, Ning B, Xu DL, Gao JH, Wang LL, Yan SY, Cheng S. Pathway-based network analysis of myeloma tumors: monoclonal gammopathy of unknown significance, smoldering multiple myeloma, and multiple myeloma. Genet Mol Res 2015; 14:9571-84. [PMID: 26345890 DOI: 10.4238/2015.august.14.20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Although many studies have been carried out on monoclonal gammopathy of unknown significances (MGUS), smoldering multiple myeloma (SMM), and multiple myeloma (MM), their classification and underlying pathogenesis are far from elucidated. To discover the relationships among MGUS, SMM, and MM at the transcriptome level, differentially expressed genes in MGUS, SMM, and MM were identified by the rank product method, and then co-expression networks were constructed by integrating the data. Finally, a pathway-network was constructed based on Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis, and the relationships between the pathways were identified. The results indicated that there were 55, 78, and 138 pathways involved in the myeloma tumor developmental stages of MGUS, SMM, and MM, respectively. The biological processes identified therein were found to have a close relationship with the immune system. Processes and pathways related to the abnormal activity of DNA and RNA were also present in SMM and MM. Six common pathways were found in the whole process of myeloma tumor development. Nine pathways were shown to participate in the progression of MGUS to SMM, and prostate cancer was the sole pathway that was involved only in MGUS and MM. Pathway-network analysis might provide a new indicator for the developmental stage diagnosis of myeloma tumors.
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Affiliation(s)
- L Dong
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
| | - C Y Chen
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
| | - B Ning
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
| | - D L Xu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
| | - J H Gao
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
| | - L L Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
| | - S Y Yan
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
| | - S Cheng
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
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187
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Xia W, Pan L, Li J, Wang Q, Feng Y, Dong L. Molecular basis of ALS- and/or ACCase-inhibitor resistance in shortawn foxtail (Alopecurus aequalis Sobol.). Pestic Biochem Physiol 2015; 122:76-80. [PMID: 26071810 DOI: 10.1016/j.pestbp.2014.12.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 12/15/2014] [Accepted: 12/16/2014] [Indexed: 05/04/2023]
Abstract
Alopecurus aequalis, a predominant weed species in wheat and oilseed rape fields, can no longer be controlled by mesosulfuron-methyl application after continuous use over several years. Based on dose-response studies, the putative resistant populations, JTJY-1 and JHHZ-1, were found to be resistant to mesosulfuron-methyl, with resistance index values of 5.5 and 14, respectively. Sensitivity assays of the mesosulfuron-methyl-resistant populations to other herbicides revealed that the JTJY-1 population had moderate or high cross resistance to sulfonylureas (SUs) and triazolopyrimidines (TPs), but displayed a low level resistance to imidazolinones (IMIs). JTJY-1 also had high multi-resistance to ACCase inhibitors, but remained susceptible to photosystem II inhibitors. The JHHZ-1 population was resistant to all ALS inhibitors tested, but was sensitive to ACCase inhibitors and photosystem II inhibitors. To clarify the molecular basis of resistance in JTJY-1 and JHHZ-1 population, the ALS and ACCase gene were sequenced. Two ALS mutations (Pro-197-Thr or Trp-574-Leu) were detected in the mesosulfuron-methyl-resistant plants. The ACCase gene analysis revealed that the resistant JTJY-1 population had an Ile-1781-Leu mutation. Furthermore, the presence of two different target site resistance (TSR) mechanisms (ALS and ACCase mutations) existing simultaneously in individual A. aequalis was firstly documented in the presented study.
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Affiliation(s)
- Wenwen Xia
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Pest Management on Crops in East China (Nanjing Agricultural University), Ministry of Agriculture, Beijing, China
| | - Lang Pan
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Pest Management on Crops in East China (Nanjing Agricultural University), Ministry of Agriculture, Beijing, China
| | - Jun Li
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Pest Management on Crops in East China (Nanjing Agricultural University), Ministry of Agriculture, Beijing, China
| | - Qiong Wang
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Pest Management on Crops in East China (Nanjing Agricultural University), Ministry of Agriculture, Beijing, China
| | - Yujuan Feng
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Pest Management on Crops in East China (Nanjing Agricultural University), Ministry of Agriculture, Beijing, China
| | - Liyao Dong
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Pest Management on Crops in East China (Nanjing Agricultural University), Ministry of Agriculture, Beijing, China.
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188
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Cui S, Guo L, Li X, Gu Y, Fu J, Dong L, Song H, Chen X, Lu Y, Hu C, Xiao F, Zhu D, Wu Z, Zhang Q. Clinical Safety and Preliminary Efficacy of Plasmid pUDK-HGF Expressing Human Hepatocyte Growth Factor (HGF) in Patients with Critical Limb Ischemia. Eur J Vasc Endovasc Surg 2015; 50:494-501. [PMID: 26122834 DOI: 10.1016/j.ejvs.2015.05.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [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: 02/11/2015] [Accepted: 05/20/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVE Critical limb ischemia (CLI) is the most severe form of peripheral arterial disease and a major unmet public health care need. This phase I clinical study was performed to assess the safety and preliminary efficacy of naked plasmid DNA (pUDK-HGF) expressing human hepatocyte growth factor (HGF) in patients with critical limb ischemia (CLI). DESIGN Twenty-one patients with CLI were enrolled and randomly divided into four dose groups (4-16 mg) to receive local injection of pUDK-HGF into ischemic calf and/or thigh muscles twice on days 1 and 15. Safety, including adverse events and physiological parameters, and preliminary efficacy, including pain severity score (VAS), ulcer size, transcutaneous oxygen pressure (TcPO2), and ankle brachial index (ABI), were evaluated throughout a 3 month follow up period. RESULTS All doses of pUDK-HGF were well tolerated by the patients. None of the adverse effects was considered to be related to pUDK-HGF injection. Two significant clinical results were observed after pUDK-HGF administration. The mean VAS value of all patients decreased from 4.52 at baseline to 0.30 (p < .01), and pain had disappeared in 14 out of 17 evaluable patients by day 91. Two of four ulcers had completely healed, with the other two patients having more than 25% ulcer size reduction in the long axis diameter. Of five patients with gangrene, one gangrenous wound had healed completely and two patients showed marked size reduction by day 91. The mean hemodynamic parameters (ABI, TcPO2) were also improved. CONCLUSION Intramuscular injection of pUDK-HGF is safe, and may provide symptomatic relief for CLI patients. A larger, randomized, double blinded phase II trial will provide more information on safety and efficacy.
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Affiliation(s)
- S Cui
- Vascular Surgery Department of Xuan Wu Hospital, Institute of Vascular Surgery, Capital Medical University, Beijing, China
| | - L Guo
- Vascular Surgery Department of Xuan Wu Hospital, Institute of Vascular Surgery, Capital Medical University, Beijing, China
| | - X Li
- Vascular Surgery Department of Xuan Wu Hospital, Institute of Vascular Surgery, Capital Medical University, Beijing, China
| | - Y Gu
- Vascular Surgery Department of Xuan Wu Hospital, Institute of Vascular Surgery, Capital Medical University, Beijing, China.
| | - J Fu
- Beijing Institute of Radiation Medicine, Beijing, China
| | - L Dong
- Beijing Institute of Radiation Medicine, Beijing, China
| | - H Song
- Beijing Institute of Radiation Medicine, Beijing, China
| | - X Chen
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Y Lu
- Beijing Institute of Radiation Medicine, Beijing, China
| | - C Hu
- Beijing Institute of Radiation Medicine, Beijing, China
| | - F Xiao
- Beijing Institute of Radiation Medicine, Beijing, China
| | - D Zhu
- Humanwell Healthcare Group Co., Ltd., Wuhan, China
| | - Z Wu
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Q Zhang
- Beijing Institute of Radiation Medicine, Beijing, China.
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189
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Yang J, Zhang L, Zhang Y, Dong L, Balter P, Court L. SU-E-J-108: Solving the Chinese Postman Problem for Effective Contour Deformation. Med Phys 2015. [DOI: 10.1118/1.4924195] [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: 11/07/2022] Open
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190
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Richards WG, Van Oss SB, Glickman JN, Chirieac LR, Yeap B, Dong L, Gordon GJ, Mercer H, Gill KK, Imrich A, Bueno R, Sugarbaker DJ. A microaliquoting technique for precise histological annotation and optimization of cell content in frozen tissue specimens. Biotech Histochem 2015; 82:189-97. [PMID: 17917854 DOI: 10.1080/10520290701488121] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Knowledge of the exact cell content of frozen tissue samples is of growing importance in genomic research. We developed a microaliquoting technique to measure and optimize the cell composition of frozen tumor specimens for molecular studies. Frozen samples of 31 mesothelioma cases were cut in alternating thin and thick sections. Thin sections were stained and evaluated visually. Thick sections, i.e., microaliquots, were annotated using bordering stained sections. A range of cellular heterogeneity was observed among and within samples. Precise annotation of samples was obtained by integration and compared to conventional single face and "front and back"’ section estimates of cell content. Front and back estimates were more highly correlated with block annotation by microaliquoting than were single face estimates. Both methods yielded discrepant estimates, however, and for some studies may not adequately account for the heterogeneity of mesothelioma or other malignancies with variable cellular composition. High yield and quality RNA was extracted from precision annotated, tumor-enriched subsamples prepared by combining individual microaliquots with the highest tumor cellularity estimates. Microaliquoting provides accurate cell content annotation and permits genomic analysis of enriched subpopulations of cells without fixation or amplification.
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Affiliation(s)
- W G Richards
- Division of Thoracic Surgery, 2Department of Pathology, Brigham and Women’s Hospital, Boston, MA 02115, USA.
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191
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He Z, Dong L, Zhang Y, Kong Q, Tan G, Zhou J. Metabolic syndrome in female migraine patients is associated with medication overuse headache: a clinic-based study in China. Eur J Neurol 2015; 22:1228-34. [PMID: 25981360 DOI: 10.1111/ene.12732] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Accepted: 03/10/2015] [Indexed: 11/29/2022]
Affiliation(s)
- Z. He
- Department of Neurology; The First Affiliated Hospital of Chongqing Medical University; Chongqing China
| | - L. Dong
- Department of Neurology; The First Affiliated Hospital of Chongqing Medical University; Chongqing China
| | - Y. Zhang
- Department of Neurology; The First Affiliated Hospital of Chongqing Medical University; Chongqing China
| | - Q. Kong
- Department of Neurology; The First Affiliated Hospital of Chongqing Medical University; Chongqing China
| | - G. Tan
- Department of Neurology; The First Affiliated Hospital of Chongqing Medical University; Chongqing China
| | - J. Zhou
- Department of Neurology; The First Affiliated Hospital of Chongqing Medical University; Chongqing China
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192
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Kluckova K, Sticha M, Cerny J, Mracek T, Dong L, Drahota Z, Gottlieb E, Neuzil J, Rohlena J. Ubiquinone-binding site mutagenesis reveals the role of mitochondrial complex II in cell death initiation. Cell Death Dis 2015; 6:e1749. [PMID: 25950479 PMCID: PMC4669690 DOI: 10.1038/cddis.2015.110] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 01/22/2015] [Accepted: 02/19/2015] [Indexed: 12/13/2022]
Abstract
Respiratory complex II (CII, succinate dehydrogenase, SDH) inhibition can induce cell death, but the mechanistic details need clarification. To elucidate the role of reactive oxygen species (ROS) formation upon the ubiquinone-binding (Qp) site blockade, we substituted CII subunit C (SDHC) residues lining the Qp site by site-directed mutagenesis. Cell lines carrying these mutations were characterized on the bases of CII activity and exposed to Qp site inhibitors MitoVES, thenoyltrifluoroacetone (TTFA) and Atpenin A5. We found that I56F and S68A SDHC variants, which support succinate-mediated respiration and maintain low intracellular succinate, were less efficiently inhibited by MitoVES than the wild-type (WT) variant. Importantly, associated ROS generation and cell death induction was also impaired, and cell death in the WT cells was malonate and catalase sensitive. In contrast, the S68A variant was much more susceptible to TTFA inhibition than the I56F variant or the WT CII, which was again reflected by enhanced ROS formation and increased malonate- and catalase-sensitive cell death induction. The R72C variant that accumulates intracellular succinate due to compromised CII activity was resistant to MitoVES and TTFA treatment and did not increase ROS, even though TTFA efficiently generated ROS at low succinate in mitochondria isolated from R72C cells. Similarly, the high-affinity Qp site inhibitor Atpenin A5 rapidly increased intracellular succinate in WT cells but did not induce ROS or cell death, unlike MitoVES and TTFA that upregulated succinate only moderately. These results demonstrate that cell death initiation upon CII inhibition depends on ROS and that the extent of cell death correlates with the potency of inhibition at the Qp site unless intracellular succinate is high. In addition, this validates the Qp site of CII as a target for cell death induction with relevance to cancer therapy.
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Affiliation(s)
- K Kluckova
- Institute of Biotechnology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - M Sticha
- Faculty of Sciences, Charles University, Prague, Czech Republic
| | - J Cerny
- Institute of Biotechnology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - T Mracek
- Institute of Physiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - L Dong
- School of Medical Science, Griffith University, Southport, Queensland, Australia
| | - Z Drahota
- Institute of Physiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - E Gottlieb
- The Beatson Institute for Cancer Research, Glasgow, UK
| | - J Neuzil
- Institute of Biotechnology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
- School of Medical Science, Griffith University, Southport, Queensland, Australia
| | - J Rohlena
- Institute of Biotechnology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
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193
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Mitchell E, De Souza F, Gupta R, Kahol P, Kumar D, Dong L, Gupta BK. Probing on the hydrothermally synthesized iron oxide nanoparticles for ultra-capacitor applications. POWDER TECHNOL 2015. [DOI: 10.1016/j.powtec.2014.12.021] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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194
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Chen J, Lan T, Zhang W, Dong L, Kang N, Zhang S, Fu M, Liu B, Liu K, Zhang C, Hou J, Zhan Q. Platelet-activating factor receptor-mediated PI3K/AKT activation contributes to the malignant development of esophageal squamous cell carcinoma. Oncogene 2015; 34:5114-27. [PMID: 25639872 DOI: 10.1038/onc.2014.434] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 10/16/2014] [Accepted: 11/08/2014] [Indexed: 12/22/2022]
Abstract
Esophageal squamous cell carcinoma (ESCC) is one of the most common malignancies worldwide and occurs at a relatively high frequency in China, yet the mechanisms underlying its devastating outcome remain unclear. Here we report that platelet-activating factor receptor (PAFR), a type of G-protein-coupled receptor, was upregulated in ESCC tumors and cell lines, compared with controls; PAFR levels were positively correlated with ESCC clinical stages and survival time. Overexpression of PAFR promoted the malignant development of ESCC in vitro and in vivo, whereas depletion of PAFR suppressed these effects. Interestingly, PAFR was observed to activate PI3K/AKT (phosphatidylinositol 3-kinase/AKT) through the upregulation of FAK kinase activity. AKT-triggered nuclear factor-κB transcriptionally activated PAFR expression. This mutual positive regulation between PAFR and AKT was required for the aggressiveness of ESCC cells both in vitro and in vivo. Furthermore, treating mice bearing ESCC tumors with cholesterol-conjugated PAFR small interfering RNA effectively inhibited tumor progression and the expression of AKT-mediated oncogenic proteins. Taken together, we made the first demonstration that dysregulation of PAFR and the positive regulatory loop between PAFR and pAKT contribute to malignant progression of ESCC.
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Affiliation(s)
- J Chen
- State Key Laboratory of Molecular Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - T Lan
- State Key Laboratory of Molecular Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Department of Neurosurgery, Beijing Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - W Zhang
- State Key Laboratory of Molecular Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - L Dong
- State Key Laboratory of Molecular Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - N Kang
- State Key Laboratory of Molecular Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - S Zhang
- State Key Laboratory of Molecular Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - M Fu
- State Key Laboratory of Molecular Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - B Liu
- Department of Pharmacology, School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China
| | - K Liu
- National Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Peking Union Medical College, Tsinghua University and Chinese Academy of Medical Sciences, Beijing, China
| | - C Zhang
- Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - J Hou
- Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Q Zhan
- State Key Laboratory of Molecular Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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195
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Pan L, Li J, Xia W, Zhang D, Dong L. An effective method, composed of LAMP and dCAPS, to detect different mutations in fenoxaprop-P-ethyl-resistant American sloughgrass (Beckmannia syzigachne Steud.) populations. Pestic Biochem Physiol 2015; 117:1-8. [PMID: 25619905 DOI: 10.1016/j.pestbp.2014.10.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Revised: 10/09/2014] [Accepted: 10/10/2014] [Indexed: 05/20/2023]
Abstract
The decreased susceptibility of Beckmannia syzigachne to fenoxaprop-P-ethyl is due to the reliance on it to control grass weeds since the 1990s. Loop-mediated isothermal amplification (LAMP), which is a proven simple, rapid, specific, sensitive and inexpensive assay method, has been used to detect the I1781L mutation in B. syzigachne. In the present study, four sets of primers detected four mutations in B. syzigachne, W2027C, I2041A, D2078G and G2096A, using the LAMP method. Additionally, five newly derived cleaved amplified polymorphic sequence (dCAPS) markers were developed to detect five different mutations. With a method composed of LAMP and dCAPS, 19 fenoxaprop-P-ethyl-resistant B. syzigachne populations collected in 2013 were studied. An effective method, composed of LAMP and dCAPS, to detect five mutations, I1781L, W2027C, I2041A, D2078G and G2096A, in B. syzigachne populations was developed. With this method, a B. syzigachne population resistant to fenoxaprop-P-ethyl can be studied to confirm its constitution. And we determined that the resistance level might be relevant to the mutation type and mutation frequency. The type of mutation and its frequency in fenoxaprop-P-ethyl-resistant B. syzigachne populations can be confirmed to provide appropriate herbicide management.
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Affiliation(s)
- Lang Pan
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing 210095, China
| | - Jun Li
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing 210095, China
| | - Wenwen Xia
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing 210095, China
| | - Di Zhang
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing 210095, China
| | - Liyao Dong
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing 210095, China.
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Pan L, Li J, Zhang WN, Dong L. Detection of the I1781L mutation in fenoxaprop-p-ethyl-resistant American sloughgrass (Beckmannia syzigachne Steud.), based on the loop-mediated isothermal amplification method. Pest Manag Sci 2015; 71:123-30. [PMID: 24644047 DOI: 10.1002/ps.3777] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [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: 01/22/2014] [Revised: 03/11/2014] [Accepted: 03/12/2014] [Indexed: 05/20/2023]
Abstract
BACKGROUND The increasing use of fenoxaprop-p-ethyl has resulted in evolved resistance in American sloughgrass (Beckmannia syzigachne Steud.). Target-site-based resistance to acetyl-CoA carboxylase (ACCase) inhibitors in B. syzigachne occurs owing to an isoleucine-to-leucine substitution at residue 1781 (I1781L) of the ACCase enzyme. A rapid detection method is needed to identify the resistance-conferring substitution. RESULTS Four populations of B. syzigachne that were resistant to fenoxaprop-p-ethyl and contained the I1781L substitution were identified. Conventional PCR and derived cleaved amplified polymorphic sequence (dCAPS) methods were used to detect the mutation. Additionally, a rapid nucleic acid detection method, loop-mediated isothermal amplification (LAMP), was successfully developed and used to detect the genetic mutation underlying the I1781L substitution in the B. syzigachne ACCase enzyme. CONCLUSION This report is the first to describe the application of a LAMP assay for mutation detection in herbicide-resistant weeds. The assay does not require specialised equipment: only a standard laboratory bath is needed. This technique could be employed for detecting the I1781L substitution in B. syzigachne plants and seeds.
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Affiliation(s)
- Lang Pan
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China; Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing, China
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Xu H, Zhang W, Zhang T, Li J, Wu X, Dong L. Determination of ploidy level and isolation of genes encoding acetyl-CoA carboxylase in Japanese Foxtail (Alopecurus japonicus). PLoS One 2014; 9:e114712. [PMID: 25503308 PMCID: PMC4263612 DOI: 10.1371/journal.pone.0114712] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 11/13/2014] [Indexed: 11/21/2022] Open
Abstract
Ploidy level is important in biodiversity studies and in developing strategies for isolating important plant genes. Many herbicide-resistant weed species are polyploids, but our understanding of these polyploid weeds is limited. Japanese foxtail, a noxious agricultural grass weed, has evolved herbicide resistance. However, most studies on this weed have ignored the fact that there are multiple copies of target genes. This may complicate the study of resistance mechanisms. Japanese foxtail was found to be a tetraploid by flow cytometer and chromosome counting, two commonly used methods in the determination of ploidy levels. We found that there are two copies of the gene encoding plastidic acetyl-CoA carboxylase (ACCase) in Japanese foxtail and all the homologous genes are expressed. Additionally, no difference in ploidy levels or ACCase gene copy numbers was observed between an ACCase-inhibiting herbicide-resistant and a herbicide-sensitive population in this study.
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Affiliation(s)
- Hongle Xu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- Key Laboratory of Integrated Pest Management on Crops in East China (Nanjing Agricultural University), Ministry of Agriculture, Beijing, China
| | - Wenpan Zhang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- National Key Laboratory of Crop Genetic & Germplasm Enhancement, Cotton Research Institute, Nanjing Agricultural University, Nanjing, China
| | - Teng Zhang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- Key Laboratory of Integrated Pest Management on Crops in East China (Nanjing Agricultural University), Ministry of Agriculture, Beijing, China
| | - Jun Li
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- Key Laboratory of Integrated Pest Management on Crops in East China (Nanjing Agricultural University), Ministry of Agriculture, Beijing, China
| | - Xian Wu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- Key Laboratory of Integrated Pest Management on Crops in East China (Nanjing Agricultural University), Ministry of Agriculture, Beijing, China
| | - Liyao Dong
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- Key Laboratory of Integrated Pest Management on Crops in East China (Nanjing Agricultural University), Ministry of Agriculture, Beijing, China
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198
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Chen Y, Dong L, Gale A. Are abnormalities missed in the PERFORMS self-assessment scheme due to visual or cognitive factors? Breast Cancer Res 2014. [PMCID: PMC4243189 DOI: 10.1186/bcr3700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
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199
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Xu H, Li J, Zhang D, Cheng Y, Jiang Y, Dong L. Mutations at codon position 1999 of acetyl-CoA carboxylase confer resistance to ACCase-inhibiting herbicides in Japanese foxtail (Alopecurus japonicus). Pest Manag Sci 2014; 70:1894-1901. [PMID: 24497328 DOI: 10.1002/ps.3753] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [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: 12/10/2013] [Revised: 01/27/2014] [Accepted: 01/27/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND The intensive and global application of ACCase-inhibiting herbicides has resulted in the evolution of resistance in a growing number of grass weeds. Among the mutations implicated in conferring resistance, limited knowledge is available regarding mutations at codon position 1999. In addition, multiple copies of genes encoding plastidic ACCase have been ignored in previous studies of resistance in Alopecurus japonicus. RESULTS Dose-response tests indicated that the population JLGY-4 had evolved high-level resistance to fenoxaprop-P-ethyl. The carboxyltransferase domain of the ACCase gene in A. japonicus was sequenced and compared. Two loci encoding plastidic ACCase were isolated from both the resistant and sensitive populations. Simultaneously, two resistance-endowing mutations at codon position 1999 of ACCase were determined (W1999C and W1999L). Moreover, a molecular study was conducted to determine the mechanism of resistance to some ACCase-inhibiting herbicides. The W1999C mutation conferred resistance to fenoxaprop and moderate resistance to pinoxaden. The W1999L mutation conferred resistance to fenoxaprop. CONCLUSION This study revealed that A. japonicus had multiple copies of genes encoding plastidic ACCase, and each gene was able to carry its own mutation. It also established the clear importance of the W1999C and W1999L mutations in conferring resistance to ACCase-inhibiting herbicides.
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Affiliation(s)
- Hongle Xu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China; Key Laboratory of Integrated Pest Management on Crops in East China (Nanjing Agricultural University), Ministry of Agriculture, China
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Wei R, Dong L, Xiao Q, Sun D, Li X, Nian H. Engagement of Toll-like receptor 2 enhances interleukin (IL)-17(+) autoreactive T cell responses via p38 mitogen-activated protein kinase signalling in dendritic cells. Clin Exp Immunol 2014; 178:353-63. [PMID: 24965660 DOI: 10.1111/cei.12405] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/20/2014] [Indexed: 12/27/2022] Open
Abstract
Functional analysis of single Toll-like receptors (TLRs) in vivo is necessary to understand how they shape the ocular inflammation involved in uveitis. In this study we explored the role and mechanisms of TLR-2 agonists on the autoreactive T helper type 17 (Th17) response in experimental autoimmune uveitis (EAU). Treatment by peptidoglycan (PGN), a specific TLR-2 agonist, remarkably increased mRNA levels of Th17-lineage genes interleukin (IL)-17A, IL-21 and RAR-related orphan receptor (ROR)γt and promoted antigen-specific Th17 response in EAU mice. A mixture of PGN and interphotoreceptor retinoid-binding protein peptide (IRBP161-180 ) could effectively induce EAU in the absence of complete Freund's adjuvant (CFA). PGN treatment also enhanced the pathogenic activities of activated antigen-specific Th17 cells in vivo. PGN significantly increased the production of IL-1β, IL-6 and IL-23 of dendritic cells (DCs) and enhanced their ability to promote IL-17(+) uveitogenic T cells. Enhanced immunostimulatory activities of PGN-DCs depend upon p38 activation. Inhibition of p38 mitogen-activated protein kinase (MAPK) activity dramatically decreased IL-17 gene expression and antigen-specific Th17 responses stimulated by PGN-DCs. Our findings suggest that PGN treatment dramatically promotes the IL-17(+) uveitogenic T cell responses via enhancing the immunostimulatory activities of DCs. This effect may be mediated, at least in part, by activation of the p38 signalling pathway in DCs.
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Affiliation(s)
- R Wei
- Tianjin Medical University Eye Hospital and Eye Institute, Tianjin, China
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