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He WJ, Yang P, Huang T, Liu YF, Zhang YW, Zhang WM, Zhang TT, Zheng MR, Ma L, Zhao CX, Li HP, Liao YC, Wu AB, Zhang JB. Detoxifying bacterial genes for deoxynivalenol epimerization confer durable resistance to Fusarium head blight in wheat. Plant Biotechnol J 2024. [PMID: 38593377 DOI: 10.1111/pbi.14353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/26/2024] [Accepted: 03/29/2024] [Indexed: 04/11/2024]
Abstract
Fusarium head blight (FHB) and the presence of mycotoxin deoxynivalenol (DON) pose serious threats to wheat production and food safety worldwide. DON, as a virulence factor, is crucial for the spread of FHB pathogens on plants. However, germplasm resources that are naturally resistant to DON and DON-producing FHB pathogens are inadequate in plants. Here, detoxifying bacteria genes responsible for DON epimerization were used to enhance the resistance of wheat to mycotoxin DON and FHB pathogens. We characterized the complete pathway and molecular basis leading to the thorough detoxification of DON via epimerization through two sequential reactions in the detoxifying bacterium Devosia sp. D6-9. Epimerization efficiently eliminates the phytotoxicity of DON and neutralizes the effects of DON as a virulence factor. Notably, co-expressing of the genes encoding quinoprotein dehydrogenase (QDDH) for DON oxidation in the first reaction step, and aldo-keto reductase AKR13B2 for 3-keto-DON reduction in the second reaction step significantly reduced the accumulation of DON as virulence factor in wheat after the infection of pathogenic Fusarium, and accordingly conferred increased disease resistance to FHB by restricting the spread of pathogenic Fusarium in the transgenic plants. Stable and improved resistance was observed in greenhouse and field conditions over multiple generations. This successful approach presents a promising avenue for enhancing FHB resistance in crops and reducing mycotoxin contents in grains through detoxification of the virulence factor DON by exogenous resistance genes from microbes.
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Affiliation(s)
- Wei-Jie He
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Peng Yang
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
- Jiangsu Ruihua Agricultural Science and Technology Co., Ltd., Suqian, China
| | - Tao Huang
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Yu-Fan Liu
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Yu-Wei Zhang
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Wen-Min Zhang
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Tian-Tian Zhang
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Meng-Ru Zheng
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Ling Ma
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Chang-Xing Zhao
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - He-Ping Li
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Yu-Cai Liao
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Ai-Bo Wu
- SIBS-UGENT-SJTU Joint Laboratory of Mycotoxin Research, CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Jing-Bo Zhang
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
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Yue J, Song GH, Li HP, Sun T, Song LH, Tong ZS, Zhang LL, Song ZC, Ouyang QC, Yang J, Pan YY, Yuan P. [Gemcitabine long-term maintenance chemotherapy benefits patients with survival: a multicenter, real-world study of advanced breast cancer treatment in China]. Zhonghua Zhong Liu Za Zhi 2024; 46:249-255. [PMID: 38494771 DOI: 10.3760/cma.j.cn112152-20231024-00251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Objective: This study collected a real-world data on survival and efficacy of gemcitabine-containing therapy in advanced breast cancer. Aimed to find the main reasons of affecting the duration of gemcitabine-base therapy in advanced breast cancer patients. Methods: Advanced breast cancer patients who received gemcitabine-base therapy from January 2017 to January 2019 were enrolled(10 hospitals). The clinicopathological data, the number of chemotherapy cycles and the reasons for treatment termination were collected and analyzed. To identify the reasons related with continuous treatment for advanced breast cancer and the factors which affect the survival and efficacy. Results: A total of 224 patients with advanced breast cancer were enrolled in this study, with a median age of 52 years (26-77 years), 55.4%(124/224) was postmenopausal. Luminal type were 83 cases, TNBC were 97 cases, and human epidermal growth factor receptor 2 (HER's-2) overexpression were 44. At the analysis, 224 patients who received the gemcitabine-based regimens were evaluated, included 5 complete reponse (CR), 77 partial response (PR), 112 stable disease (SD) and 27 progressive disease (PD). The objective response rate (ORR) was 36.6%(82/224). Seventy patients had serious adverse diseases, including leukopenia (9), neutrophilia (49), thrombocytopenia (15), and elevated transaminase (2). The median follow-up time was 41 months (26~61 months), and the median PFS was 5.6 months. The reasons of termination treatment were listed: disease progression were 90 patients; personal reasons were 51 patients; adverse drug reactions were 18 patients; completed treatment were 65 patients. It was found that progression-free survival (PFS) was significantly longer in patients receiving >6 cycles than that in patients with ≤6 cycles (8.2 months vs 5.4 months, HR=2.474, 95% CI: 1.730-3.538, P<0.001). Conclusions: Gemcitabine-based regimen is generally well tolerated in the Chinese population and has relatively ideal clinical efficacy in the real world. The median PFS is significantly prolonged when the number of treatment cycles are appropriately increased.
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Affiliation(s)
- J Yue
- Department of VIP Medical Services, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - G H Song
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Department of Breast Oncology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - H P Li
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Department of Breast Oncology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - T Sun
- Department of Breast Medicine, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, China
| | - L H Song
- Department of Medical Oncology, Cancer Research Center, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - Z S Tong
- Department of Breast Oncology, Tianjin Medical University Cancer Hospital, National Clinical Research Center of Cancer, Key Laboratory of Breast Cancer Prevention and Therapy, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - L L Zhang
- Department of Medical Oncology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing 210009, China
| | - Z C Song
- Breast Cancer, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - Q C Ouyang
- Department of Breast Cancer Medical Oncology, Hunan Cancer Hospital, Changsha 410006, China
| | - J Yang
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710049, China
| | - Y Y Pan
- Department of Medical Oncology, Provincial Hospital Affiliated to Anhui Medical University, Hefei 230001, China
| | - P Yuan
- Department of VIP Medical Services, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Li HP, Liu C, Luo H, Wang FY, Su HQ, Wang S, Wu Q. Design and experiments of a compact electrostatic low energy beam transport with a double Einzel-lens for a transportable neutron source. Rev Sci Instrum 2023; 94:123301. [PMID: 38038637 DOI: 10.1063/5.0160376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 11/10/2023] [Indexed: 12/02/2023]
Abstract
A transportable, compact, accelerator-based neutron source is under development at Xian Jiaotong University. An electrostatic low energy beam transport (LEBT) structure with a double Einzel-lens setup was adopted due to its short length and low power consumption. It can transport a pulsed proton beam to the radio frequency quadrupole with a required beam current of 15 mA and an energy of 30 keV. We performed detailed structure optimization and beam tracking to achieve beam matching and small emittance growth. In addition, the fast chopper, beam steering, and diagnostic devices are integrated into the LEBT. The fabrication and assembly of the proton injector have been completed, and beam commissioning was carried out to measure the beam current and Twiss parameters. The design strategy, beam simulation, and experimental results are presented and discussed in this paper.
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Affiliation(s)
- H P Li
- School of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
- XJTU-Huzhou Neutron Science Laboratory, Science Valley Medium-sized Building No. 1, Huzhou 313000, Zhejiang, China
| | - C Liu
- School of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
- XJTU-Huzhou Neutron Science Laboratory, Science Valley Medium-sized Building No. 1, Huzhou 313000, Zhejiang, China
| | - H Luo
- School of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - F Y Wang
- School of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
- XJTU-Huzhou Neutron Science Laboratory, Science Valley Medium-sized Building No. 1, Huzhou 313000, Zhejiang, China
| | - H Q Su
- School of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
- XJTU-Huzhou Neutron Science Laboratory, Science Valley Medium-sized Building No. 1, Huzhou 313000, Zhejiang, China
| | - S Wang
- School of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
- XJTU-Huzhou Neutron Science Laboratory, Science Valley Medium-sized Building No. 1, Huzhou 313000, Zhejiang, China
| | - Q Wu
- Institute of Modern Physics (IMP), Chinese Academy of Sciences, Lanzhou 730000, Gansu, China
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Shang QX, Xu K, Dai QG, Huang HD, Hu JL, Zou X, Chen LL, Wei Y, Li HP, Zhen Q, Cai W, Wang Y, Bao CC. [Analysis on the secondary attack rates of SARS-CoV-2 Omicron variant and the associated factors]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1550-1557. [PMID: 37859370 DOI: 10.3760/cma.j.cn112150-20230227-00162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
Objective: To evaluate the secondary attack rates of the SARS-CoV-2 Omicron variant and the associated factors. Methods: A total of 328 primary cases and 40 146 close contacts of the SARS-CoV-2 Omicron variant routinely detected in local areas of Jiangsu Province from February to April 2022 were selected in this study, and those with positive nucleic acid test results during 7 days of centralized isolation medical observation were defined as secondary cases. The demographic information and clinical characteristics were collected, and the secondary attack rate (SAR) and the associated factors were analyzed by using a multivariate logistic regression model. Results: A total of 1 285 secondary cases of close contacts were reported from 328 primary cases, with a SAR of 3.2% (95%CI: 3.0%-3.4%). Among the 328 primary cases, males accounted for 61.9% (203 cases), with the median age (Q1, Q3) of 38.5 (27, 51) years old. Among the 1 285 secondary cases, males accounted for 59.1% (759 cases), with the median age (Q1, Q3) of 34 (17, 52) years old. The multivariate logistic regression model showed that the higher SAR was observed in the primary male cases (OR=1.632, 95%CI: 1.418-1.877), younger than 20 years old (OR=1.766, 95%CI: 1.506-2.072),≥60 years old (OR=1.869, 95%CI: 1.476-2.365), infected with the BA.2 strain branch (OR=2.906, 95%CI: 2.388-3.537), the confirmed common cases (OR=2.572, 95%CI: 2.036-3.249), and confirmed mild cases (OR=1.717, 95%CI: 1.486-1.985). Meanwhile, the higher SAR was observed in the close contacts younger than 20 years old (OR=2.604, 95%CI: 2.250-3.015),≥60 years old (OR=1.287, 95%CI: 1.052-1.573) and exposure for co-residence (OR=27.854, 95%CI: 23.470-33.057). Conclusion: The sex and age of the primary case of the Omicron variant, the branch of the infected strain, case severity of the primary case, as well as the age and contact mode of close contacts are the associated factors of SAR.
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Affiliation(s)
- Q X Shang
- School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - K Xu
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Q G Dai
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - H D Huang
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - J L Hu
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - X Zou
- School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - L L Chen
- Department of Acute Infectious Disease Control and Prevention, Suzhou Center for Disease Control and Prevention, Suzhou 215004, China
| | - Y Wei
- Department of Acute Infectious Disease Control and Prevention, Nantong Center for Disease Control and Prevention, Nantong 226007, China
| | - H P Li
- Department of Acute Infectious Disease Control and Prevention, Lianyungang Center for Disease Control and Prevention, Lianyungang 222003, China
| | - Q Zhen
- Department of Acute Infectious Disease Control and Prevention, Changzhou Center for Disease Control and Prevention, Changzhou 213003, China
| | - W Cai
- Department of Acute Infectious Disease Control and Prevention, Suqian Center for Disease Control and Prevention, Suqian 223899, China
| | - Y Wang
- Department of Acute Infectious Disease Control and Prevention, Yangzhou Center for Disease Control and Prevention, Yangzhou 225007, China
| | - C C Bao
- School of Public Health, Nanjing Medical University, Nanjing 211166, China Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
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Yu MH, Yang SL, Xie WX, Li YJ, Li HP, Yan QL. Stabilization of AlH 3 Crystals by the Coating of Hydrophobic PFPE and Resulted Reactivity with Ammonium Perchlorate. Langmuir 2023. [PMID: 37219591 DOI: 10.1021/acs.langmuir.3c00711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Aluminum hydride (AlH3) is a promising fuel component of solid propellant, but its stabilization is still challenging. Herein, surface functionalization of hydrophobic perfluoropolyether (PFPE) followed by ammonium perchlorate (AP) coating has been implemented. In particular, AlH3@PFPE@xAP (x = 10, 30, 50, or 64.21%) composites (AHFPs) were prepared by a spray-drying technique. The PFPE-functionalized AlH3 with a hydrophobic surface shows an increased water contact angle (WCA) from 51.87° to 113.54°. Compared with pure AlH3, the initial decomposition temperatures of AHFPs were increased by 17 °C, and the decomposition properties of AP in the AHFPs were also enhanced with significantly decreased peak temperature and fairly increased energy output. Moreover, the decomposition induction time of AHFPs-30% was improved by almost 1.82 times that of raw AlH3, which indicates that the coatings of PFPE and AP could improve the stability of AlH3. The maximum flame radiation intensity of AHFPs-30% was 21.6 × 103, which is almost 7.71 times that of pure AlH3 (2.8 × 103).
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Affiliation(s)
- Ming-Hui Yu
- Science and Technology on Combustion, Internal Flow and Thermo-structure Laboratory, Northwestern Polytechnical University, Xi'an 710072, China
| | - Su-Lan Yang
- Science and Technology on Combustion, Internal Flow and Thermo-structure Laboratory, Northwestern Polytechnical University, Xi'an 710072, China
| | - Wu-Xi Xie
- Xi'an Modern Chemistry Research Institute, Xi'an 710065, China
| | - Ya-Jin Li
- Xi'an Modern Chemistry Research Institute, Xi'an 710065, China
| | - He-Ping Li
- School of Science, Hangzhou Dianzi University, Hangzhou, 310018, China
| | - Qi-Long Yan
- Science and Technology on Combustion, Internal Flow and Thermo-structure Laboratory, Northwestern Polytechnical University, Xi'an 710072, China
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Guo QK, Yang HS, Shan SC, Chang DD, Qiu LJ, Luo HH, Li HP, Ke ZF, Zhu Y. A radiomics nomogram prediction for survival of patients with "driver gene-negative" lung adenocarcinomas (LUAD). Radiol Med 2023:10.1007/s11547-023-01643-4. [PMID: 37219740 DOI: 10.1007/s11547-023-01643-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 04/26/2023] [Indexed: 05/24/2023]
Abstract
BACKGROUND To study the role of computed tomography (CT)-derived radiomics features and clinical characteristics on the prognosis of "driver gene-negative" lung adenocarcinoma (LUAD) and to explore the potential molecular biological which may be helpful for patients' individual postoperative care. METHODS A total of 180 patients with stage I-III "driver gene-negative" LUAD in the First Affiliated Hospital of Sun Yat-Sen University from September 2003 to June 2015 were retrospectively collected. The Least Absolute Shrinkage and Selection Operator (LASSO) Cox regression model was used to screen radiomics features and calculated the Rad-score. The prediction performance of the nomogram model based on radiomics features and clinical characteristics was validated and then assessed with respect to calibration. Gene set enrichment analysis (GSEA) was used to explore the relevant biological pathways. RESULTS The radiomics and the clinicopathological characteristics were combined to construct a nomogram resulted in better performance for the estimation of OS (C-index: 0.815; 95% confidence interval [CI]: 0.756-0.874) than the clinicopathological nomogram (C-index: 0.765; 95% CI: 0.692-0.837). Decision curve analysis demonstrated that in terms of clinical usefulness, the radiomics nomogram outperformed the traditional staging system and the clinicopathological nomogram. The clinical prognostic risk score of each patient was calculated based on the radiomics nomogram and divided by X-tile into high-risk (> 65.28) and low-risk (≤ 65.28) groups. GSEA results showed that the low-risk score group was directly related to amino acid metabolism, and the high-risk score group was related to immune and metabolism pathways. CONCLUSIONS The radiomics nomogram was promising to predict the prognosis of patients with "driver gene-negative" LUAD. The metabolism and immune-related pathways may provide new treatment orientation for this genetically unique subset of patients, which may serve as a potential tool to guide individual postoperative care for those patients.
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Affiliation(s)
- Qi-Kun Guo
- Department of Oncology, The Affiliated He Xian Memorial Hospital of Southern Medical University, Guangzhou, 510080, Province Guangdong, People's Republic of China
- Department of Interventional Radiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, Province Guangdong, People's Republic of China
| | - Hao-Shuai Yang
- Department of Thoracic Surgery, China-Japan Friendship Hospital, Beijing, China
| | - Shi-Chao Shan
- Department of Thoracic Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Province Guangdong, People's Republic of China
| | - Dan-Dan Chang
- Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Province Guangdong, People's Republic of China
| | - Li-Jie Qiu
- Department of Interventional Radiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, Province Guangdong, People's Republic of China
| | - Hong-He Luo
- Department of Thoracic Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Province Guangdong, People's Republic of China
| | - He-Ping Li
- Department of Medical Oncology of the Eastern Hospital, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, People's Republic of China.
| | - Zun-Fu Ke
- Department of Pathology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Province Guangdong, People's Republic of China.
- Institution of Precision Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Province Guangdong, People's Republic of China.
| | - Ying Zhu
- Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Province Guangdong, People's Republic of China.
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Li HP, Wu XL, Zhan G, Fu XJ, Chen JH, He XH, Han B. Construction of cyclopenta[ b]dihydronaphthofurans via TsOH-catalyzed consecutive biscyclization of dithioallylic alcohols and 1-styrylnaphthols. Chem Commun (Camb) 2023; 59:2275-2278. [PMID: 36734602 DOI: 10.1039/d2cc06324g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
An efficient TsOH-catalyzed consecutive biscyclization cascade reaction of dithioallylic alcohols with 1-styrylnaphthols is demonstrated for the concise construction of pharmaceutically important cyclopenta[b]dihydrobenzofuran scaffolds. This process involved an acid-catalyzed (3+2) cycloaddition followed by an intramolecular nucleophilic addition, providing cyclopenta[b]dihydronaphthofurans bearing a tetra- or fully substituted cyclopentane core in good yields with exclusive diastereoselectivities (>20 : 1 d.r.).
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Affiliation(s)
- He-Ping Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China.
| | - Xiao-Ling Wu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China.
| | - Gu Zhan
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China.
| | - Xue-Ju Fu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China.
| | - Jian-Hua Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China.
| | - Xiang-Hong He
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China.
| | - Bo Han
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China.
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Chen SY, Zhao RN, Li Y, Li HP, Xie MH, Liu JF, Yang MF, Wu CX. Cold tolerance strategy and cryoprotectants of Megabruchidius dorsalis in different temperature and time stresses. Front Physiol 2023; 13:1118955. [PMID: 36714316 PMCID: PMC9873968 DOI: 10.3389/fphys.2022.1118955] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 12/30/2022] [Indexed: 01/13/2023] Open
Abstract
The honey locusts (genus Gleditsia) are a genus of high-value trees in Asia. Seed beetle, Megabruchidius dorsalis (Fåhraeus) (Col.: Chrysomelidae: Bruchinae), is a Gleditsia oligophagous pest that causes severe yield reduction. To understand the cold tolerance of M. dorsalis adults, this study investigated its cold tolerance strategy and the influence of low temperatures on its physiology and biochemistry. The low-temperature treatments were divided into three groups: long-term temperature acclimation (Group 1; 15°C, or 20°C, or 25°C, or 28°C [control check, CK] for 10 days), short-term low-temperature exposure (Group 2; 0°C or 4°C for 2 h), and long-term low-temperature induction (Group 3; 0°C or 4°C for 1, 3, or 5 d). The supercooling point (SCP; temperature at which spontaneous nucleation and ice lattice growth begin), freezing point (FP; temperature at which insect fluids freeze), low lethal temperature (LLT; temperature at which all individuals are killed), water, lipid, glycerol, and total sugars contents were measured under different temperature stresses. The results showed that M. dorsalis adults were a freeze-avoidant species. The SCP and LLT at 28°C were -10.62°C and -19.48°C, respectively. The SCP and FP of long-term temperature acclimation (15°C, or 20°C, or 25°C) were significantly lower than that of the control group (28°C). The water content of the long-term low temperature induction (0°C) group was significantly lower than that of the control group. The lipid and glycerol content in the acclimated group at 20°C and 25°C were significantly higher than in the control group. M. dorsalis adults may maintain their biofluids in a supercooled state via cryoprotectant accumulation and cryoprotective dehydration to prevent ice nucleation. This study provides a theoretical basis for future research on overwintering and potential distribution and related prediction of M. dorsalis adults.
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Affiliation(s)
- Si-Yu Chen
- College of Forestry, Guizhou University, Guiyang, Guizhou, China
| | - Ru-Na Zhao
- Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region, Scientific Observing and Experiment Station of Crop Pest Guiyang, Ministry of Agriculture, Institute of Entomology, Guizhou University, Guiyang, China
| | - You Li
- Fujian Province Key Laboratory of Plant Virology, Fujian Agriculture and Forestry University, Vector-Borne Virus Research Center, Fuzhou, China
| | - He-Ping Li
- College of Forestry, Guizhou University, Guiyang, Guizhou, China
| | - Ming-Hui Xie
- College of Forestry, Guizhou University, Guiyang, Guizhou, China
| | - Jian-Feng Liu
- Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region, Scientific Observing and Experiment Station of Crop Pest Guiyang, Ministry of Agriculture, Institute of Entomology, Guizhou University, Guiyang, China
| | - Mao-Fa Yang
- Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region, Scientific Observing and Experiment Station of Crop Pest Guiyang, Ministry of Agriculture, Institute of Entomology, Guizhou University, Guiyang, China,College of Tobacco Science, Guizhou University, Guiyang, China
| | - Cheng-Xu Wu
- College of Forestry, Guizhou University, Guiyang, Guizhou, China,*Correspondence: Cheng-Xu Wu,
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Zhao Q, Chen BH, Li HP, Yu TT, Peng C, He XH, Huang W. Highly diastereoselective [3+3] cycloaddition of indolin-3-ones and nitroallylic acetates: Efficient access to polysubstituted dihydropyrano[3,2-b]indoles. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133275] [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: 01/21/2023]
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Li HP, Zhang WS, He L, Hu H, Ren MQ, Liu XM, Xu LB, Tuo BG. [Clinical and endoscopic characteristics of gastrointestinal mantle cell lymphoma]. Zhonghua Yi Xue Za Zhi 2022; 102:3673-3679. [PMID: 36509538 DOI: 10.3760/cma.j.cn112137-20220526-01166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Objective: To study the clinical and endoscopic features of mantle cell lymphoma (MCL). Methods: The clinical data and endoscopic characteristics of 20 patients with gastrointestinal MCL treated in the Affiliated Hospital of Zunyi Medical University and the Digestive Endoscopy Center of Guizhou Medical University from January 2011 to January 2021 were collected, and the histological and immunohistochemical characteristics of the tumor were observed. Meanwhile, 44 cases of non-gastrointestinal MCL in the above two hospitals in the same period were also enrolled. The clinical and endoscopic differences between the two groups were compared. Results: Among the 20 patients with gastrointestinal MCL, the male to female ratio was 4∶1 (16/4), the average age was (60.3±9.7) years, and 11 patients (55.0%, 11/20) were over 60 years old. The main clinical manifestations of 20 patients at the onset of the disease were bloody stool or black stool in 9 cases (45.0%), abdominal pain in 8 cases (40.0%). Moreover, 5.0% (1/20) had B symptoms (fever, night sweat and weight loss). The most frequently involved site was colorectum (50.0%). Endoscopic findings showed mucosal polypoid lesions in 13 cases (65.0%, 13/20), involving multiple intestinal segments, with polyp diameter of 0.2-3.5 cm. Two cases (10%) were in stage Ⅲ and 18 cases (90%) were in stage Ⅳ according to Ann Arbor staging. Seven cases (35.0%, 7/20) had the involvement of the peritoneal and retroperitoneal lymph nodes, 9 cases (45.0%, 9/20) had the involvement of the superficial lymph nodes in 45.0% (9/20), and 4 cases (20%, 4/20) had other extranodal invasion. Splenomegaly accounted for 35.0% (7/20). CD20, Bcl-2 and CD5 were positive or strongly positive in all gastrointestinal MCL tumor cells in 20 cases. Cyclin D1 was positive or strongly positive, accounting for 90.0% (18/20). The sex-determining region of Y chromosome-related high-mobility-group box 11 (SOX11) was positive or strongly positive, accounting for 65.0% (13/20). The positive index of Ki-67 was 5%-80%. Twenty cases (100%, 20/20) were followed up. The median follow-up was 41.2 months (1-74 months). There was no significant difference in the 3-year overall survival rate between the gastrointestinal MCL patients (70.0%) and non-gastrointestinal MCL patients (72.7%) (χ2=0.051, P=0.822). Conclusions: Abdominal discomfort is the main symptom of gastrointestinal MCL, which often occurs in the colorectum and often presents with multiple polypoid lesions. There are relatively few cases with B symptoms and extranodal invasion, and the prognosis is not different from that of patients with non-gastrointestinal MCL.
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Affiliation(s)
- H P Li
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China
| | - W S Zhang
- Digestive Endoscopy Center, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
| | - L He
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China
| | - H Hu
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China
| | - M Q Ren
- Department of Hematology, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China
| | - X M Liu
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China
| | - L B Xu
- Digestive Endoscopy Center, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
| | - B G Tuo
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China
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11
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Lu Y, Hong J, Li HP, Wang XN, Ma ZZ, Wang CG. [Relationship between opacity of cytomegalovirus retinitis lesion borders and aqueous viral load among patients after allogeneic hematopoietic stem cell transplantation]. Zhonghua Yan Ke Za Zhi 2022; 58:1033-1038. [PMID: 36480884 DOI: 10.3760/cma.j.cn112142-20220218-00062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Objective: To evaluate the relationship between lesion features of cytomegalovirus (CMV) retinitis, including lesion size and degree of opacity of lesion borders, and aqueous CMV-DNA load in patients after allogeneic hematopoietic stem cell transplantation. Methods: It was a retrospective case series study. Data of patients diagnosed as CMV retinitis after allogeneic hematopoietic stem cell transplantation at the Department of Ophthalmology, Peking University Third Hospital from January 2018 to October 2020 were reviewed. Lesion size was detected by ultra-wide-field fundus image and measured by ImageJ, an image processing and analysis software. Opacity of lesion borders was evaluated by a masked reader. The CMV retinitis lesions were divided into 3 types according to the opacity degree of the border of the lesions: suspected active lesion mildly to moderately opacified lesion and severely opacified lesion. All eyes were diagnosed as active cytomegalovirus retinitis. CMV-DNA in aqueous humor was detected at the first visit and at the end of the induction period of antiviral drugs. CMV-DNA load was quantitatively detected by polymerase chain reaction after 100 μl of aqueous humor was extracted, and were converted to common logarithmic representations. Pearson correlation analysis was used to analyze the correlation between lesion area, opacity degree of lesion border and aqueous humor CMV-DNA load. Results: A total of 71 eyes from 46 patients were included and 26 was male and 20 was female. The age of the patients was 27(13, 33)years. The active lesion size of CMV retinitis was 40(12, 65) disc areas. Eight eyes (11.3%) had a suspected active lesion, 51 eyes (71.8%) had a mildly to moderately opacified lesion border, and 12 eyes (16.9%) had a severely opacified border. At the first visit, 67 eyes (94.4%) were CMV-positive, and the CMV-DNA load was 2.04×104 (6.24× 102, 1.48 ×105) copies/ml. After 2 weeks of induction therapy, the viral load was 2.47×102 (1.08× 10, 6.87 ×103) copies/ml. The correlation analysis showed that the CMV-DNA load in aqueous humor was significantly correlated with the lesion border opacity both at presentation and 2 weeks after intravitreal antiviral treatment (r=0.765, P<0.001; r=0.761, P<0.001), but was not related with the size of active fundus lesions (r=0.209, P=0.095; r=0.220, P=0.078). Conclusion: Degrees of lesion border opacity can reflect levels of aqueous viral load of CMV retinitis in patients after allogeneic hematopoietic stem cell transplantation and can become a useful measurement for investigation of CMV retinitis activity.
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Affiliation(s)
- Y Lu
- Department of Ophthalmology, Peking University Third Hospital, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Beijing 100191, China
| | - J Hong
- Department of Ophthalmology, Peking University Third Hospital, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Beijing 100191, China
| | - H P Li
- Department of Ophthalmology, Peking University Third Hospital, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Beijing 100191, China
| | - X N Wang
- Department of Ophthalmology, Peking University Third Hospital, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Beijing 100191, China
| | - Z Z Ma
- Department of Ophthalmology, Peking University Third Hospital, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Beijing 100191, China
| | - C G Wang
- Department of Ophthalmology, Peking University Third Hospital, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Beijing 100191, China
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12
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Yin JH, Zhou J, Chen YW, Li HP, Tao Y, Chang CK, Zhang CQ, Liu Z. [Potential application of improved hard tissue section technique in the clinical pathological diagnosis of bone and bone marrow]. Zhonghua Yi Xue Za Zhi 2022; 102:3617-3623. [PMID: 36480866 DOI: 10.3760/cma.j.cn112137-20220408-00756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Objective: To discuss the application value of hard tissue section in the clinicopathology diagnosis. Methods: From March 2021 to December 2021, bone slices of 19 patients (1 patient with osteochondroma, 2 patients with chondrosarcoma, 4 patients with osteosarcoma, 2 patients with fibrous dysplasia, 2 patients with bone metastasis from thyroid papillary carcinoma, 2 patients with osteomyelitis, 4 patients with giant cell tumor of bone, 2 patients with Ewing sarcoma) and 16 hemopathy patients were collected from the Department of Pathology, Shanghai Sixth People's Hospital. Of the osteopathy patients, there were 14 male and 5 female with a median age of 31 (10-66) years. Meanwhile, there were 7 male and 9 female with a median age of 28 (16-65) years among these hemopathy patients. Thirty-five cases were treated with modified hard tissue slicing technique and paraffin embedding technique, respectively. The advantages and disadvantages of the two methods for clinical diagnosis of bone disease were compared by Hematoxylin-Eosin staining (H&E staining), immunohistochemical staining (IHC), fluorescence in situ hybridization (FISH) and Sanger sequencing. Results: The improved resin-embedded method showed better histological morphology and cell structure. Besides, the expression of Ki67, SATB2, CD34, SMA, CD68,MPO,CD4 and CD33 in immunohistochemical staining in bone tissues which were embedded in resin were more clear in the accurate positive localization than those using paraffin-embedded. MDM2 of FISH exhibited a higher fluorescence intensity and more accurate location. Meanwhile, both methods treated with Sanger sequencing met the requirements of DNA purity and mutation detection. Conclusion: The improved hard tissue section method is simple and short time-consuming, which is suitable for optimizing the clinical bone and bone marrow pathological diagnosis process.
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Affiliation(s)
- J H Yin
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital, Shanghai 200233, China
| | - J Zhou
- Department of Pathology, Shanghai Sixth People's Hospital, Shanghai 200233, China
| | - Y W Chen
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital, Shanghai 200233, China
| | - H P Li
- Department of Hematology, Shanghai Sixth People's Hospital, Shanghai 200233, China
| | - Y Tao
- Department of Hematology, Shanghai Sixth People's Hospital, Shanghai 200233, China
| | - C K Chang
- Department of Hematology, Shanghai Sixth People's Hospital, Shanghai 200233, China
| | - C Q Zhang
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital, Shanghai 200233, China
| | - Zhiyan Liu
- Department of Pathology, Shanghai Sixth People's Hospital, Shanghai 200233, China
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Li Y, Li HP, Wu MX, Wang QY, Zeng X. Effects of transcranial direct current stimulation for post-stroke depression: A systematic review and meta-analysis. Clin Neurophysiol 2022; 142:1-10. [DOI: 10.1016/j.clinph.2022.07.369] [Citation(s) in RCA: 1] [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] [Received: 06/14/2021] [Revised: 04/05/2022] [Accepted: 07/09/2022] [Indexed: 12/24/2022]
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14
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Huang W, Li G, He XH, Li HP, Zhao Q, Li DA, Zhu HP, Zhang YH, Zhan G. Design, synthesis, and biological evaluation of tetrahydro-αcarbolines as Akt1 inhibitors that inhibit colorectal cancer cells proliferation. ChemMedChem 2022; 17:e202200104. [PMID: 35355421 DOI: 10.1002/cmdc.202200104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/25/2022] [Indexed: 11/09/2022]
Abstract
A series of densely functionalized THαCs were designed and synthesized as Akt1 inhibitors. Organocatalytic [3+3] annulation between indolin-2-imines 1 and nitroallylic acetates 2 provided rapid access to this pharmacologically interesting framework. In vitro kinase inhibitory abilities and cytotoxicity assays revealed that compound 3af was the most potent Akt1 inhibitor, and mechanistic study indicated that compound 3af suppressed the proliferation of colorectal cancer cells via inducing apoptosis and autophagy. Molecular docking suggested that the indole fragment of 3af was inserted into the hydrophobic pocket of Akt1 protein, and the H-bond between 3af and residue Lys179 also contributed to the stable binding. This article provides an efficient strategy to design and synthesize biologically important compounds as novel Akt1 inhibitors.
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Affiliation(s)
- Wei Huang
- Chengdu University of Traditional Chinese Medicine, School of Pharmacy, 1166 Liu Tai Av., 610000, Chengdu, CHINA
| | - Guo Li
- Chengdu University of Traditional Chinese Medicine Wenjiang Campus: Chengdu University of Traditional Chinese Medicine, State Key Laboratory of Southwestern Chinese Medicine Resources, CHINA
| | - Xiang-Hong He
- Chengdu University of Traditional Chinese Medicine Wenjiang Campus: Chengdu University of Traditional Chinese Medicine, State Key Laboratory of Southwestern Chinese Medicine Resources, CHINA
| | - He-Ping Li
- Chengdu University of Traditional Chinese Medicine Wenjiang Campus: Chengdu University of Traditional Chinese Medicine, State Key Laboratory of Southwestern Chinese Medicine Resources, CHINA
| | - Qian Zhao
- Chengdu University of Traditional Chinese Medicine Wenjiang Campus: Chengdu University of Traditional Chinese Medicine, State Key Laboratory of Southwestern Chinese Medicine Resources, 610000, Chengdu, CHINA
| | - Dong-Ai Li
- Chengdu University of Traditional Chinese Medicine Wenjiang Campus: Chengdu University of Traditional Chinese Medicine, State Key Laboratory of Southwestern Chinese Medicine Resources, CHINA
| | - Hong-Ping Zhu
- Chengdu University of Traditional Chinese Medicine Wenjiang Campus: Chengdu University of Traditional Chinese Medicine, State Key Laboratory of Southwestern Chinese Medicine Resources, CHINA
| | - Yue-Hua Zhang
- Sichuan University, State Key Laboratory of Biotherapy and Department of Pharmacy, CHINA
| | - Gu Zhan
- Chengdu University of Traditional Chinese Medicine Wenjiang Campus: Chengdu University of Traditional Chinese Medicine, State Key Laboratory of Southwestern Chinese Medicine Resources, CHINA
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Ma XR, Zhu XM, Li J, Qi X, Li HP, Tan J. Characterization of cold atmospheric plasma-modified dentin collagen. Dent Mater J 2022; 41:473-480. [PMID: 35321973 DOI: 10.4012/dmj.2021-207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The aim of this study was to evaluate the crosslinking effect of the radio-frequency atmospheric-pressure glow discharge (RF-APGD) plasma jet treatment on dentin collagen. The dentin collagen was treated by an RF-APGD plasma jet with the gas temperature of 4°C under different treatment times, while the control was a non-treatment group. The dentin collagen was characterized in terms of atomic force microscopy-based nanoindentation, differential scanning calorimeter, Raman analysis and X-ray photoelectron spectroscopy (XPS) measurement. The crosslinking effect of the plasma-treated dentin collagen was found compared to that of the control group. The elastic modulus and denaturation temperature of the dentin collagen after plasma treatment for 30 s were significantly higher than those in the control group (p<0.05). The RF-APGD plasma jet treatment can promote the crosslinking of the dentin collagen, which is of great significance to improve its mechanical and thermal stabilities.
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Affiliation(s)
- Xin-Rong Ma
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology
| | - Xiao-Ming Zhu
- Second Clinical Division, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology
| | - Jing Li
- Department of Engineering Physics, Tsinghua University
| | - Xuan Qi
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology
| | - He-Ping Li
- Department of Engineering Physics, Tsinghua University
| | - Jianguo Tan
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology
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Li HP, He XH, Peng C, Li JL, Han B. A straightforward access to trifluoromethylated natural products through late-stage functionalization. Nat Prod Rep 2022; 40:988-1021. [DOI: 10.1039/d2np00056c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This review summarizes the applications of late-stage strategies in the direct trifluoromethylation of natural products in the past ten years, with particular emphasis on the reaction model of each method.
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Affiliation(s)
- He-Ping Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Xiang-Hong He
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Jun-Long Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Bo Han
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
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17
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Liu G, Zuo DY, Yang P, He WJ, Yang Z, Zhang JB, Wu AB, Yi SY, Li HP, Huang T, Liao YC. A Novel Deoxynivalenol-Activated Wheat Arl6ip4 Gene Encodes an Antifungal Peptide with Deoxynivalenol Affinity and Protects Plants against Fusarium Pathogens and Mycotoxins. J Fungi (Basel) 2021; 7:jof7110941. [PMID: 34829228 PMCID: PMC8618893 DOI: 10.3390/jof7110941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 10/31/2021] [Accepted: 11/03/2021] [Indexed: 12/12/2022] Open
Abstract
Deoxynivalenol (DON) is one of the most widespread trichothecene mycotoxins in contaminated cereal products. DON plays a vital role in the pathogenesis of Fusarium graminearum, but the molecular mechanisms of DON underlying Fusarium–wheat interactions are not yet well understood. In this study, a novel wheat ADP-ribosylation factor-like protein 6-interacting protein 4 gene, TaArl6ip4, was identified from DON-treated wheat suspension cells by suppression subtractive hybridization (SSH). The qRT-PCR result suggested that TaArl6ip4 expression is specifically activated by DON in both the Fusarium intermediate susceptible wheat cultivar Zhengmai9023 and the Fusarium resistant cultivar Sumai3. The transient expression results of the TaARL6IP4::GFP fusion protein indicate that TaArl6ip4 encodes a plasma membrane and nucleus-localized protein. Multiple sequence alignment using microscale thermophoresis showed that TaARL6IP4 comprises a conserved DON binding motif, 67HXXXG71, and exhibits DON affinity with a dissociation constant (KD) of 91 ± 2.6 µM. Moreover, TaARL6IP4 exhibited antifungal activity with IC50 values of 22 ± 1.5 µM and 25 ± 2.6 µM against Fusarium graminearum and Alternaria alternata, respectively. Furthermore, TaArl6ip4 interacted with the plasma membrane of Fusarium graminearum spores, resulting in membrane disruption and the leakage of cytoplasmic materials. The heterologous over-expression of TaArl6ip4 conferred greater DON tolerance and Fusarium resistance in Arabidopsis. Finally, we describe a novel DON-induced wheat gene, TaArl6ip4, exhibiting antifungal function and DON affinity that may play a key role in Fusarium–wheat interactions.
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Affiliation(s)
- Gang Liu
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China; (G.L.); (D.-Y.Z.); (P.Y.); (W.-J.H.); (Z.Y.); (J.-B.Z.); (S.-Y.Y.); (H.-P.L.)
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Dong-Yun Zuo
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China; (G.L.); (D.-Y.Z.); (P.Y.); (W.-J.H.); (Z.Y.); (J.-B.Z.); (S.-Y.Y.); (H.-P.L.)
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of the Chinese Academy of Agricultural Sciences, Anyang 455000, China
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Peng Yang
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China; (G.L.); (D.-Y.Z.); (P.Y.); (W.-J.H.); (Z.Y.); (J.-B.Z.); (S.-Y.Y.); (H.-P.L.)
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Wei-Jie He
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China; (G.L.); (D.-Y.Z.); (P.Y.); (W.-J.H.); (Z.Y.); (J.-B.Z.); (S.-Y.Y.); (H.-P.L.)
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Zheng Yang
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China; (G.L.); (D.-Y.Z.); (P.Y.); (W.-J.H.); (Z.Y.); (J.-B.Z.); (S.-Y.Y.); (H.-P.L.)
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Jing-Bo Zhang
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China; (G.L.); (D.-Y.Z.); (P.Y.); (W.-J.H.); (Z.Y.); (J.-B.Z.); (S.-Y.Y.); (H.-P.L.)
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Ai-Bo Wu
- Key Laboratory of Food Safety Research Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China;
| | - Shu-Yuan Yi
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China; (G.L.); (D.-Y.Z.); (P.Y.); (W.-J.H.); (Z.Y.); (J.-B.Z.); (S.-Y.Y.); (H.-P.L.)
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Forestry and Fruit Tree Research Institute, Wuhan Academy of Agricultural Sciences, Wuhan 430070, China
| | - He-Ping Li
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China; (G.L.); (D.-Y.Z.); (P.Y.); (W.-J.H.); (Z.Y.); (J.-B.Z.); (S.-Y.Y.); (H.-P.L.)
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Tao Huang
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China; (G.L.); (D.-Y.Z.); (P.Y.); (W.-J.H.); (Z.Y.); (J.-B.Z.); (S.-Y.Y.); (H.-P.L.)
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Correspondence: (T.H.); (Y.-C.L.)
| | - Yu-Cai Liao
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China; (G.L.); (D.-Y.Z.); (P.Y.); (W.-J.H.); (Z.Y.); (J.-B.Z.); (S.-Y.Y.); (H.-P.L.)
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Correspondence: (T.H.); (Y.-C.L.)
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Li QY, Li HP. [Exploration and understanding of pathogenesis of obstructive sleep apnea]. Zhonghua Jie He He Hu Xi Za Zhi 2021; 44:864-866. [PMID: 34565110 DOI: 10.3760/cma.j.cn112147-20210623-00437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
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Qi X, Zhu XM, Liu X, Li J, Zhao LX, Li HP, Tan J. Effects of a helium cold atmospheric plasma on bonding to artificial caries-affected dentin. Dent Mater J 2021; 41:101-109. [PMID: 34602586 DOI: 10.4012/dmj.2021-091] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study investigated the effects of a helium cold atmospheric plasma (CAP) on the bonding performance and surface modification of the caries-affected dentin (CAD). Artificial CAD was created by pH-cycling. The microtensile bond of CAD were examined before and after CAP treatments at 24 h and after 2-year aging. The effects of surface modification were studied with contact-angle measurement, scanning electron microscopy and X-ray photoemission spectroscopy. Thirty-second CAP treatment increased the immediate bond strength of CAD to a level that was statistically the same as sound dentin, and slowed the aging process of the bonding as well. The CAP treatment induced modified CAD surface with increased wettability, cleaner appearance, and increased percentage of the mineral-associated elements and oxygen. This research demonstrated that the helium CAP jet treatments of 30 s and 45 s improved the bond strength of the artificial CAD, and was considerably effective in its surface modification.
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Affiliation(s)
- Xuan Qi
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology
| | - Xiao-Ming Zhu
- Second Clinical Division, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology
| | - Xiaoqiang Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology
| | - Jing Li
- Department of Engineering Physics, Tsinghua University
| | - Lu-Xiang Zhao
- Department of Mechanical Engineering, Tsinghua University
| | - He-Ping Li
- Department of Engineering Physics, Tsinghua University
| | - Jianguo Tan
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology
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Li N, Li HP, Zhang BY, Zhang L, Shen JM, Li QY. [Effect of high-fat diet on respiratory function and diaphragm fibers in mice and its mitochondrial mechanism]. Zhonghua Yi Xue Za Zhi 2021; 101:2893-2899. [PMID: 34587730 DOI: 10.3760/cma.j.cn112137-20210112-00095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of high-fat diet (HFD) on respiratory function and its mitochondrial mechanism in mice. Methods: Twenty 4-week-old healthy male C57BL/6 mice were divided by simple random grouping into two groups, 10 mice for each group. Mice were raised with normal diet (NFD) and HFD for 16 weeks, respectively, and weighed once every two weeks. At the end of the intervention, respiratory parameters were measured by whole-body plethysomography, serum and diaphragm tissue lipid species were measured, diaphragm tissue was stained to observe diaphragmmatic morphology, muscle fiber phenotype and mitochondrial ultrastructure. Real-time fluorescence quantitative PCR and immunoblotting were used to detect myosin heavy chain(MHC) and mitochondrial dynamics-related genes and protein expression. Results: The baseline body weights of NFD and HFD mice were (19.17±0.59) and (19.12±0.64) g, respectively, with no statistically significant differences (P=0.857). After 16 weeks of feeding, the body weight of mice in the HFD group was (41.28±2.21) g, which was higher than NFD group [(27.14±0.53) g, P<0.001]. The peak inspiratory flow rate, tidal volume and minute ventilation of mice in the HFD group were (5.72±0.64) ml/s, (0.23±0.04) ml and (97.49±21.68) ml, respectively, which were lower than NFD group [(7.70±1.52) ml/s, (0.31±0.07) ml and (129.99±28.87) ml, respectively, all P values<0.05]. Penh value was 1.16±0.07, which was higher than NFD group (0.98±0.09, P<0.001). The diaphragmatic triglyceride content of mice in the HFD group was (20.43±6.36) mmol/mg, which was higher than NFD group [(11.62±1.78) mmol/mg] (P=0.003), and lipid droplets were deposited in the diaphragm fibers. The percentage of MHC-Ⅰ muscle fibers in the diaphragm of mice in the HFD group was 13.33%±2.95%, which was lower than NFD group (19.20%±1.23%, P=0.034). The mitochondria of the diaphragm in the NFD group were arranged in rows with clear structures, while in the HFD group showed swelling, cristae breakage and vacuoles. The relative expression level of mitochondrial fusion protein 2 in the diaphragm of the HFD group was 0.61±0.16, which was lower than NFD group (1.28±0.03, P<0.001); the relative expression of mitochondrial dynamin-related protein 1 were 1.18±0.06 and 0.91±0.11, respectively, both higher than NFD group (0.61±0.07 and 0.60±0.04, respectively, P<0.001). Conclusion: HFD impairs respiratory function in mice by the mechanism associated with the MHC-Ⅰ muscle fibers decrease and the mitochondrial dynamics imbalance of diaphragm.
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Affiliation(s)
- N Li
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - H P Li
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - B Y Zhang
- Department of Pathology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - L Zhang
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - J M Shen
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Q Y Li
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
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Wu MX, Wang LG, Li HP, Zeng X. [Acupuncture adjuvant treatment for dysphagia in patients with Parkinson's disease: a randomized controlled trial]. Zhongguo Zhen Jiu 2021; 41:485-8. [PMID: 34002559 DOI: 10.13703/j.0255-2930.20200724-0002] [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: 11/06/2022]
Abstract
OBJECTIVE To observe the effect of acupuncture on swallowing function and nutritional status of patients with Parkinson's disease (PD) dysphagia. METHODS A total of 56 patients with PD dysphagia were randomly divided into an observation group and a control group, 28 cases in each one. Both groups were given conventional treatment and swallowing function rehabilitation training.On the basis, the observation group was treated with acupuncture (filiform needling and tongue picking acupuncture). The acupoints of filiform needling were Lianquan (CV 23), Shanglianquan (Extra), Yifeng (TE 17), etc.; and the tongue picking acupuncture was applied at Jinjin (EX-HN 12), Yuye (EX-HN 13) and posterior pharyngeal wall. Rehabilitation training and acupuncture were performed once a day for 5 consecutive days a week, 2 weeks as a course of treatment, 3 courses in total. The swallowing function [oral transit time (OTT), swallowing response time (SRT), pharyngeal transit time (PTT), laryngeal closure duration (LCD)] and nutritional indexes [body mass index (BMI), serum albumin (ALB), serum prealbumin (PA), hemoglobin (Hb)] in the two groups were evaluated before and after treatment, and the clinical effects were compared. RESULTS After treatment, the paste and liquid OTT, SRT, PTT, LCD in the two groups were shorter than those before treatment (P<0.05), and the observation group was shorter than the control group (P<0.05). After treatment, the nutritional indexes (BMI, ALB, PA, Hb) in the two groups were higher than those before treatment (P<0.05), and the observation group was higher than the control group (P<0.05). The total effective rate of the observation group was 92.9% (26/28), which was better than 67.9% (19/28) of the control group (P<0.05). CONCLUSION Acupuncture-assisted rehabilitation training can improve the swallowing function and nutritional status in patients with Parkinson's disease swallowing disorders.
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Affiliation(s)
- Ming-Xia Wu
- Department of Rehabilitation Medicine, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, Henan Province, China
| | - Liu-Gen Wang
- Department of Rehabilitation Medicine, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, Henan Province, China
| | - He-Ping Li
- Department of Rehabilitation Medicine, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, Henan Province, China
| | - Xi Zeng
- Department of Rehabilitation Medicine, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, Henan Province, China
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Yang Y, Zheng M, Jia YN, Li J, Li HP, Tan JG. Time-dependent reactive oxygen species inhibit Streptococcus mutans growth on zirconia after a helium cold atmospheric plasma treatment. Mater Sci Eng C Mater Biol Appl 2021; 120:111633. [PMID: 33545816 DOI: 10.1016/j.msec.2020.111633] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 10/03/2020] [Accepted: 10/13/2020] [Indexed: 01/19/2023]
Abstract
As an efficient strategy for the modification of material surfaces, cold atmospheric plasma (CAP) has been used in dentistry to improve hard and soft tissue integration of dental implant materials. We previously found the Streptococcus mutans growth was inhibited on the surface of zirconia implant abutment after a 60-second helium cold atmospheric plasma treatment. However, the mechanism of bacterial growth inhibition on CAP-treated zirconia has not been fully understood. The duration of bacterial inhibition effectiveness on CAP-treated zirconia has also been insufficiently examined. In this work, we assume that reactive oxygen species (ROS) are the primary cause of bacterial inhibition on CAP-treated zirconia. The ROS staining and an ROS scavenger were utilized to evaluate the bacterial intracellular ROS level, and to determine the role of ROS in bacterial growth inhibition when seeded on CAP-treated zirconia. The time-dependent effectiveness of CAP treatment was determined by changes in surface characteristics and antibacterial efficacy of zirconia with different storage times after CAP treatment. This study confirmed that the presence of reactive oxygen species on the zirconia surface after CAP treatment inhibits the growth of Streptococcus mutans on the material surface. Although the antibacterial efficacy of the 60-second CAP-treated zirconia decreased over time, there were fewer bacteria on the treated surface than those on the untreated surface after 14 days.
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Affiliation(s)
- Yang Yang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing 100081, PR China
| | - Miao Zheng
- Department of Stomatology, Peking University Third Hospital, Beijing 100191, PR China
| | - Ya-Nan Jia
- College of Mechanical Engineering, North China University of Science and Technology, Tangshan 063210, PR China
| | - Jing Li
- Department of Engineering Physics, Tsinghua University, Beijing 100084, PR China
| | - He-Ping Li
- Department of Engineering Physics, Tsinghua University, Beijing 100084, PR China.
| | - Jian-Guo Tan
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing 100081, PR China.
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Lin ZH, Jiang JR, Ma XK, Chen J, Li HP, Li X, Wu XY, Huang MS, Lin Q. Prognostic value of serum HIF-1α change following transarterial chemoembolization in hepatocellular carcinoma. Clin Exp Med 2020; 21:109-120. [PMID: 33037574 DOI: 10.1007/s10238-020-00667-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 04/22/2020] [Accepted: 09/22/2020] [Indexed: 02/02/2023]
Abstract
Transarterial chemoembolization (TACE) induces a change in serum HIF-1α level in patients with hepatocellular carcinoma (HCC). This study investigated the prognostic value of change in serum HIF-1α following TACE treatment in HCC patients. A total of 61 hepatocellular carcinoma patients treated with TACE were included. Peripheral blood samples were collected within 1 week before and after TACE to determine the serum levels of hypoxia-inducible factor-1α (HIF-1α) and vascular endothelial growth factor-A (VEGF-A) by enzyme-linked immunosorbent assay (ELISA). Serum HIF-1α change was calculated as follows: ∆HIF-1α = (HIF-1α (pre-TACE) - HIF-1α (post-TACE))/HIF-1α (pre-TACE). Likewise, serum VEG-F change was calculated as follows: ∆VEG-F = (VEG-F (pre-TACE) - VEG-F(post-TACE))/VEG-F (pre-TACE). Based on the cutoffs (0.25) determined by the maximum Youden's index in receiver operating characteristic analysis, the patients were grouped into the low ∆HIF-1α group (< 0.25) and the high ∆HIF-1α group (> 0.25). After TACE treatment, HIF-1α was significantly decreased (pre-TACE 1901.62 vs. post-TACE 621.82 pg/ml, P < 0.01) but VEGF-A was significantly increased (pre-TACE 60.80 vs. post-TACE 143.81 pg/ml, P < 0.01). Multivariate logistic regression analysis demonstrated that ∆HIF-1α was a prognostic factor (OR = 58.09, 95% CI: 1.59-2127.32, P = 0.027) for the TACE treatment response. Furthermore, multivariate Cox regression analysis revealed that ∆HIF-1α was a prognostic factor for progression-free survival (PFS) (HR = 0.30, 95% CI: 0.14-0.66, P = 0.003) and overall survival (OS) (estimated HR = 0.38, 95% CI: 0.16-0.93, P = 0.034). Kaplan-Meier survival analysis showed that the high ∆HIF-1α group was more likely to have longer PFS (log-rank test, P = 0.004) and OS (log-rank test, P = 0.002) than the low ∆HIF-1α group. The change in serum HIF-1α level following TACE is a prognostic factor associated with the TACE treatment response, PFS, and OS in HCC patients following TACE.
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Affiliation(s)
- Zhi-Huan Lin
- Department of Medical Oncology, The Third Affiliated Hospital, Sun Yat-Sen University, 600 Tianhe Road, Guangzhou, 510630, China.,Department of Medical Oncology, The Eastern Hospital of the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, China
| | - Jun-Rong Jiang
- Department of Medical Oncology, The Third Affiliated Hospital, Sun Yat-Sen University, 600 Tianhe Road, Guangzhou, 510630, China
| | - Xiao-Kun Ma
- Department of Medical Oncology, The Third Affiliated Hospital, Sun Yat-Sen University, 600 Tianhe Road, Guangzhou, 510630, China
| | - Jie Chen
- Department of Medical Oncology, The Third Affiliated Hospital, Sun Yat-Sen University, 600 Tianhe Road, Guangzhou, 510630, China
| | - He-Ping Li
- Department of Medical Oncology, The Eastern Hospital of the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, China
| | - Xing Li
- Department of Medical Oncology, The Third Affiliated Hospital, Sun Yat-Sen University, 600 Tianhe Road, Guangzhou, 510630, China
| | - Xiang-Yuan Wu
- Department of Medical Oncology, The Third Affiliated Hospital, Sun Yat-Sen University, 600 Tianhe Road, Guangzhou, 510630, China
| | - Ming-Sheng Huang
- Department of Interventional Radiology, The Third Affiliated Hospital, Sun Yat-sen University, 600 Tianhe Road, Guangzhou, 510630, China. .,Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.
| | - Qu Lin
- Department of Medical Oncology, The Third Affiliated Hospital, Sun Yat-Sen University, 600 Tianhe Road, Guangzhou, 510630, China. .,Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.
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He WJ, Shi MM, Yang P, Huang T, Yuan QS, Yi SY, Wu AB, Li HP, Gao CB, Zhang JB, Liao YC. Novel Soil Bacterium Strain Desulfitobacterium sp. PGC-3-9 Detoxifies Trichothecene Mycotoxins in Wheat via De-Epoxidation under Aerobic and Anaerobic Conditions. Toxins (Basel) 2020; 12:toxins12060363. [PMID: 32492959 PMCID: PMC7354494 DOI: 10.3390/toxins12060363] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 05/24/2020] [Accepted: 05/29/2020] [Indexed: 12/20/2022] Open
Abstract
Trichothecenes are the most common mycotoxins contaminating small grain cereals worldwide. The C12,13 epoxide group in the trichothecenes was identified as a toxic group posing harm to humans, farm animals, and plants. Aerobic biological de-epoxidation is considered the ideal method of controlling these types of mycotoxins. In this study, we isolated a novel trichothecene mycotoxin-de-epoxidating bacterium, Desulfitobacterium sp. PGC-3-9, from a consortium obtained from the soil of a wheat field known for the occurrence of frequent Fusarium head blight epidemics under aerobic conditions. Along with MMYPF media, a combination of two antibiotics (sulfadiazine and trimethoprim) substantially increased the relative abundance of Desulfitobacterium species from 1.55% (aerobic) to 29.11% (aerobic) and 28.63% (anaerobic). A single colony purified strain, PGC-3-9, was isolated and a 16S rRNA sequencing analysis determined that it was Desulfitobacterium. The PGC-3-9 strain completely de-epoxidated HT-2, deoxynivalenol (DON), nivalenol and 15-acetyl deoxynivalenol, and efficiently eliminated DON in wheat grains under aerobic and anaerobic conditions. The strain PGC-3-9 exhibited high DON de-epoxidation activity at a wide range of pH (6–10) and temperature (15–50 °C) values under both conditions. This strain may be used for the development of detoxification agents in the agriculture and feed industries and the isolation of de-epoxidation enzymes.
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Affiliation(s)
- Wei-Jie He
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences/Hubei Engineering and Technology Research Center of Wheat/Wheat Disease Biology Research Station for Central China, Wuhan 430064, China; (W.-J.H.); (C.-B.G.)
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China; (M.-M.S.); (P.Y.); (T.H.); (Q.-S.Y.); (S.-Y.Y.); (H.-P.L.)
| | - Meng-Meng Shi
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China; (M.-M.S.); (P.Y.); (T.H.); (Q.-S.Y.); (S.-Y.Y.); (H.-P.L.)
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Peng Yang
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China; (M.-M.S.); (P.Y.); (T.H.); (Q.-S.Y.); (S.-Y.Y.); (H.-P.L.)
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Tao Huang
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China; (M.-M.S.); (P.Y.); (T.H.); (Q.-S.Y.); (S.-Y.Y.); (H.-P.L.)
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Qing-Song Yuan
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China; (M.-M.S.); (P.Y.); (T.H.); (Q.-S.Y.); (S.-Y.Y.); (H.-P.L.)
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Shu-Yuan Yi
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China; (M.-M.S.); (P.Y.); (T.H.); (Q.-S.Y.); (S.-Y.Y.); (H.-P.L.)
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Ai-Bo Wu
- Key Laboratory of Food Safety Research Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China;
| | - He-Ping Li
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China; (M.-M.S.); (P.Y.); (T.H.); (Q.-S.Y.); (S.-Y.Y.); (H.-P.L.)
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Chun-Bao Gao
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences/Hubei Engineering and Technology Research Center of Wheat/Wheat Disease Biology Research Station for Central China, Wuhan 430064, China; (W.-J.H.); (C.-B.G.)
| | - Jing-Bo Zhang
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China; (M.-M.S.); (P.Y.); (T.H.); (Q.-S.Y.); (S.-Y.Y.); (H.-P.L.)
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Correspondence: (J.-B.Z.); (Y.-C.L.); Tel.: +86-27-87283008 (Y.-C.L.)
| | - Yu-Cai Liao
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China; (M.-M.S.); (P.Y.); (T.H.); (Q.-S.Y.); (S.-Y.Y.); (H.-P.L.)
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Correspondence: (J.-B.Z.); (Y.-C.L.); Tel.: +86-27-87283008 (Y.-C.L.)
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He WJ, Shi MM, Yang P, Huang T, Zhao Y, Wu AB, Dong WB, Li HP, Zhang JB, Liao YC. A quinone-dependent dehydrogenase and two NADPH-dependent aldo/keto reductases detoxify deoxynivalenol in wheat via epimerization in a Devosia strain. Food Chem 2020; 321:126703. [PMID: 32247890 DOI: 10.1016/j.foodchem.2020.126703] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 03/26/2020] [Accepted: 03/26/2020] [Indexed: 11/16/2022]
Abstract
The Fusarium mycotoxin deoxynivalenol (DON) is typically controlled by fungicides. Here, we report DON detoxification using enzymes from the highly active Devosia strain D6-9 which degraded DON at 2.5 μg/min/108 cells. Strain D6-9 catabolized DON to 3-keto-DON and 3-epi-DON, completely removing DON in wheat. Genome analysis of three Devosia strains (D6-9, D17, and D13584), with strain D6-9 transcriptomes, identified three genes responsible for DON epimerization. One gene encodes a quinone-dependent DON dehydrogenase QDDH which oxidized DON into 3-keto-DON. Two genes encode the NADPH-dependent aldo/keto reductases AKR13B2 and AKR6D1 that convert 3-keto-DON into 3-epi-DON. Recombinant proteins expressed in Escherichia coli efficiently degraded DON in wheat grains. Molecular docking and site-directed mutagenesis revealed that residues S497, E499, and E535 function in QDDH's DON-oxidizing activity. These results advance potential microbial and enzymatic elimination of DON in agricultural samples and lend insight into the underlying mechanisms and molecular evolution of DON detoxification.
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Affiliation(s)
- Wei-Jie He
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, People's Republic of China; Hubei Engineering and Technology Research Center of Wheat/Wheat Disease Biology Research Station for Central China, Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, People's Republic of China
| | - Meng-Meng Shi
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, People's Republic of China; College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Peng Yang
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, People's Republic of China; College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Tao Huang
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, People's Republic of China; College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Yue Zhao
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, People's Republic of China; College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Ai-Bo Wu
- Key Laboratory of Food Safety Research Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, People's Republic of China
| | - Wu-Bei Dong
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - He-Ping Li
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, People's Republic of China; College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Jing-Bo Zhang
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, People's Republic of China; College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China.
| | - Yu-Cai Liao
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, People's Republic of China; College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China.
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Li HP, Xu CM, Wen BY, Li AQ, Zha GM, Jin XY, Zhao YZ, Feng LP, Cao YD, Yang GY, Wang YY, Zhong K. Extracellular production of recombinant sus scrofa trefoil factor 3 by Brevibacillus choshinensis. Exp Ther Med 2020; 19:2149-2154. [PMID: 32104278 PMCID: PMC7027283 DOI: 10.3892/etm.2020.8477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 12/12/2019] [Indexed: 11/06/2022] Open
Abstract
Trefoil factor 3 (TFF3) is involved in cell adhesion, motility and apoptosis, regulates mucosal immunity and maintains the functional integrity of intestinal epithelia. The upregulation of TFF3 expression in the weaning rat intestine attracted our interest. The present study hypothesized that TFF3 may serve a role in preventing diarrhea in weaning piglets, which is an important consideration in the pig farming industry. Previous recombinant TFF3 protein expression yields obtained from Escherichia coli were too low and the bioactivity of the protein was poor. Hence, this expression system was unsuitable for industrial applications. The present study explored the production of recombinant sus scrofa TFF3 in a Brevibacillus choshinensis (B. choshinensis) expression system, aiming to enhance the expression level of bioactive protein. To achieve this, the sus scrofa TFF3-encoding gene fragment was fused into an E. coli-Brevibacillus shuttle vector pNCMO2. High levels of TFF3 (30 mg/l) were produced and secreted into the B. choshinensis culture medium in soluble form with a molecular mass of 13.6 kDa and high immunoreactivity in western blotting. Thus, Brevibacillus may be used to produce useful mucosal factors for biochemical analyses and mucosal protection, and in industrial applications to produce novel inhibitors of diarrhea.
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Affiliation(s)
- He-Ping Li
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan 450002, P.R. China
| | - Chun-Mei Xu
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan 450002, P.R. China
| | - Bing-Yan Wen
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan 450002, P.R. China
| | - An-Qi Li
- Kansas International College, Zhengzhou Sias University, Xinzheng, Henan 451100, P.R. China
| | - Guang-Ming Zha
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan 450002, P.R. China
| | - Xiang-Yang Jin
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan 450002, P.R. China
| | - Yun-Ze Zhao
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan 450002, P.R. China
| | - Lu-Ping Feng
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan 450002, P.R. China
| | - Ye-Dong Cao
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan 450002, P.R. China
| | - Guo-Yu Yang
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan 450002, P.R. China
| | - Yue-Ying Wang
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan 450002, P.R. China
| | - Kai Zhong
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan 450002, P.R. China
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Yang Y, Zheng M, Yang Y, Li J, Su YF, Li HP, Tan JG. Inhibition of bacterial growth on zirconia abutment with a helium cold atmospheric plasma jet treatment. Clin Oral Investig 2020; 24:1465-1477. [DOI: 10.1007/s00784-019-03179-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 12/19/2019] [Indexed: 12/14/2022]
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Ji YL, He XH, Li G, Ai YY, Li HP, Peng C, Han B. Substrate-directed chemo- and regioselective synthesis of polyfunctionalized trifluoromethylarenes via organocatalytic benzannulation. Org Chem Front 2020. [DOI: 10.1039/c9qo01436e] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Highly chemo- and regioselective substrate-directed benzannulation of trisubstituted CF3-alkenes and 2-benzylidenemalononitriles or 2-nitroallylic acetates has been achieved via Michael-initiated [4 + 2] or Rauhut–Currier-initiated [3 + 3] annulation.
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Affiliation(s)
- Yan-Ling Ji
- Hospital of Chengdu University of Traditional Chinese Medicine
- State Key Laboratory of Southwestern Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu
| | - Xiang-Hong He
- Hospital of Chengdu University of Traditional Chinese Medicine
- State Key Laboratory of Southwestern Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu
| | - Guo Li
- Hospital of Chengdu University of Traditional Chinese Medicine
- State Key Laboratory of Southwestern Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu
| | - Yue-Yan Ai
- Hospital of Chengdu University of Traditional Chinese Medicine
- State Key Laboratory of Southwestern Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu
| | - He-Ping Li
- Hospital of Chengdu University of Traditional Chinese Medicine
- State Key Laboratory of Southwestern Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu
| | - Cheng Peng
- Hospital of Chengdu University of Traditional Chinese Medicine
- State Key Laboratory of Southwestern Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu
| | - Bo Han
- Hospital of Chengdu University of Traditional Chinese Medicine
- State Key Laboratory of Southwestern Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu
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Wang SN, Zhai JC, Liu WS, Xia YL, Han L, Li HP. Origins of Chinese reindeer (Rangifer tarandus) based on mitochondrial DNA analyses. PLoS One 2019; 14:e0225037. [PMID: 31721804 PMCID: PMC6853604 DOI: 10.1371/journal.pone.0225037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 03/12/2019] [Accepted: 10/28/2019] [Indexed: 11/18/2022] Open
Abstract
The most southern population of reindeer (Rangifer tarandus) inhabits northeastern China, but the migration route and origin of this population have not been confirmed. The sequences of mitochondrial DNA control regions from domestic and wild herds from Eurasia and China were analysed. The results showed that the Chinese reindeer population originated independently from north-central Russian domestic herds, belonging to a large reindeer population that was present across Beringia during the last glacial period. Some studies have reported that the Chinese reindeer population is closely related to wild forest reindeer herds in Russia. Our results, however, indicate that wild forest reindeer herds of southeastern Russia contributed little or nothing to the Chinese reindeer herd gene pool. Chinese reindeer herds have a much greater genetic similarity to more northerly distributed tundra-type herds that inhabit open areas. The present findings will be essential for future conservation planning for Chinese reindeer.
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Affiliation(s)
- Sheng-Nan Wang
- College of Wildlife Resources, Northeast Forestry University, Harbin, China
| | - Jian-Cheng Zhai
- College of Wildlife Resources, Northeast Forestry University, Harbin, China
| | - Wei-Shi Liu
- College of Wildlife Resources, Northeast Forestry University, Harbin, China
| | - Yan-Ling Xia
- College of Wildlife Resources, Northeast Forestry University, Harbin, China
| | - Lei Han
- College of Wildlife Resources, Northeast Forestry University, Harbin, China
| | - He-Ping Li
- College of Wildlife Resources, Northeast Forestry University, Harbin, China
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Li HP, Li SQ, Li QY. [Advances in the study of carotid body and obstructive sleep apnea-related hypertension]. Zhonghua Jie He He Hu Xi Za Zhi 2019; 42:529-533. [PMID: 31365971 DOI: 10.3760/cma.j.issn.1001-0939.2019.07.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Zhai JC, Han RB, Wang SN, Wang QH, Xia YL, Liu WS, Yin YJ, Li HP. DNA methylation and mRNA expression of COL6A3 in antler mesenchyme of female and male reindeer. Genes Genomics 2019; 41:1007-1013. [PMID: 31134592 DOI: 10.1007/s13258-019-00829-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 09/02/2018] [Accepted: 05/10/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUD Reindeer is the only deer species that both male and female produce antlers, which provides a particularly interesting case in studying the differences between antlers of the two sexes. Alpha 3(VI) Collagen Gene (COL6A3), forms a microfibrillar network associated with the structural integrity and biomechanical properties, has been found to be one of the differentially expressed genes in antler mesenchyme of female and male reindeer. OBJECTIVE AND METHODS The promoter sequence of reindeer COL6A3 gene was obtained using the cloning technology and analyzed by the bioinformatics methods. Bisulfite sequencing PCR (BSP) was used to detect the methylation status of the COL6A3 promoter in reindeer antler mesenchyme. Real-time quantitative PCR was used to detect COL6A3 expression in the antler mesenchyme of female and male reindeer. RESULTS Sequence analysis revealed that the reindeer COL6A3 partial promoter sequence was 983 bp including the possible promoter region at + 105 bp to + 155 bp. Homology and phylogenetic analysis indicated that the COL6A3 promoter of reindeer had the closest genetic distance with Bos taurus, Capra hircus and Ovis aries. BSP results indicated that the methylation level of COL6A3 promoter in the female reindeer antler mesenchyme was significantly higher than in the male. Correlating with increased methylation status, we also found that COL6A3 mRNA expression in female reindeer antler mesenchyme was significantly lower than in the male. CONCLUSION The higher methylation level of the COL6A3 gene in female reindeer antler mesenchyme coincides with decreased COL6A3 mRNA expression, thereby affecting the transposon silencing mechanism and possibly contributing to apparent differences of antlers in female and male reindeer.
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Affiliation(s)
- Jian-Cheng Zhai
- College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, China.,School of Earth Sciences, East China University of Technology, Nanchang, 330013, China
| | - Ruo-Bing Han
- College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, China
| | - Sheng-Nan Wang
- College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, China
| | - Qiang-Hui Wang
- College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, China
| | - Yan-Ling Xia
- College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, China
| | - Wei-Shi Liu
- College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, China
| | - Ya-Jie Yin
- College of Bioengineering, Daqing Normal University, Daqing, 163712, China
| | - He-Ping Li
- College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, China.
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Lin WH, Dai WG, Xu XD, Yu QH, Zhang B, Li J, Li HP. Downregulation of DPF3 promotes the proliferation and motility of breast cancer cells through activating JAK2/STAT3 signaling. Biochem Biophys Res Commun 2019; 514:639-644. [PMID: 31076105 DOI: 10.1016/j.bbrc.2019.04.170] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 04/25/2019] [Indexed: 12/24/2022]
Abstract
It is reported that the genetic variation of DPF3 is a risk factor of breast cancer through large-scale association research. However, the expression, function and mechanism in breast cancer is unknown. We applied qPCR and western blotting to detect the levels of DPF3 in breast cancer tissues. MTT and Anchorage-independent growth ability assay were used to evaluate the effect of DPF3 on cell proliferation. Wound healing and transwell invasion assay were performed to detect the role of DPF3 on cell motility ability. Herein, we found that the mRNA and protein levels of DPF3 are both significantly downregulated in breast cancer tissues. And downregulation of DPF3 can promote the proliferation and motility of breast cancer cells. Further investigation illustrated that downregulation of DPF3 can activate the JAK2/STAT3 signaling. In conclusion, we found that the downregulation of DPF3 plays an indispensable function in the progression of breast cancer, and may be served as a novel therapeutic target to therapy breast cancer.
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Affiliation(s)
- Wei-Hao Lin
- Department of Thyroid & Breast Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, PR China
| | - Wei-Gang Dai
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, PR China
| | - Xiang-Dong Xu
- Department of Thyroid & Breast Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, PR China
| | - Qiu-Hua Yu
- Department of Interventional Radiology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, PR China
| | - Bing Zhang
- Department of Nuclear Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, PR China
| | - Jie Li
- Department of Thyroid & Breast Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, PR China.
| | - He-Ping Li
- Department of Medical Oncology of the Eastern Hospital, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, PR China.
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Xiao H, Chen ZB, Jin HL, Li B, Xu LX, Guo Y, Chen SL, Li HP, Peng ZW, Shen JX. Treatment selection of recurrent hepatocellular carcinoma with microvascular invasion at the initial hepatectomy. Am J Transl Res 2019; 11:1864-1875. [PMID: 30972210 PMCID: PMC6456518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Accepted: 01/13/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Recurrent hepatocellular carcinoma (rHCC) patients with microvascular invasive (MVI) positive at first resection usually had poorly differentiated tumors and worse survivals. The optimal treatment for this population remains to be elucidated. METHODS We retrospectively analyzed 319 rHCC patients with MVI-positive at first resection from June, 2009 to June, 2017. Survival and costs between curative treatments [re-resection (RR) and radiofrequency ablation (RFA)] and transarterial chemoembolization (TACE) were compared. Subgroup comparisons were made in patients in Barcelona Clinic Liver Cancer (BCLC) stage 0-A and BCLC stage B-C, respectively. A one-to-one propensity score matching (PSM) was used to diminish bias. RESULTS In BCLC stage 0-A, 98 received RR/RFA, and 49 received TACE. The median overall survival (OS) of RR/RFA group was not reached, while the OS of TACE group was 26.3 months (P=0.001). After matching, the OS of the RR/RFA group was longer than that of the TACE group (39.5 vs. 26.3 months, P=0.045). In BCLC stage B-C, 137 patients received TACE, 11 received RR and 24 received RFA. The median OS was 29.8 months, 17.9 months and 11.1 months for RR, RFA and TACE group, respectively. No significant difference was found between RR and TACE (P=0.237) or RFA and TACE (P=0.484) after matching. Costs of the TACE group was significantly lower than that of the RR group but similar to that of the RFA group. CONCLUSION RR/RFA provided better survival outcomes for rHCC patients with MVI-positive at first resection in selected BCLC stage 0-A. In selected BCLC stage B-C, TACE shared a similar efficacy with RR and RFA but a lower cost than RR.
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Affiliation(s)
- Han Xiao
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510080, China
| | - Ze-Bin Chen
- Department of Liver Surgery, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510080, China
| | - Hui-Lin Jin
- Department of Liver Surgery, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510080, China
| | - Bin Li
- Clinical Trials Unit, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510080, China
| | - Li-Xia Xu
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510080, China
| | - Yu Guo
- Department of General Surgery, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510080, China
| | - Shu-Ling Chen
- Division of Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510080, China
| | - He-Ping Li
- Department of Oncology, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510080, China
| | - Zhen-Wei Peng
- Clinical Trials Unit, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510080, China
- Department of Oncology, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510080, China
| | - Jing-Xian Shen
- Department of Medical Imaging, Sun Yat-sen University Cancer Center651 Dongfeng Road East, Guangzhou, China
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Wang XL, Jia L, Li HP, Liu YJ, Han JW, Li TY, Li JY, Li L. [Transmission cluster and network of HIV-1 CRF01_AE strain in China, 1996-2014]. Zhonghua Liu Xing Bing Xue Za Zhi 2019; 40:84-88. [PMID: 30669737 DOI: 10.3760/cma.j.issn.0254-6450.2019.01.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the transmission patterns and risk factors of HIV-1 strain CRF01_AE subtypes in China, and to provide guidance for the implementation of precise intervention. Methods: A total of 2 094 CRF01_AE pol sequences were collected in 19 provinces in China between 1996 and 2014. Phylogenetic tree was constructed by PhyML 3.0 software to select the transmission clusters. Transmission network was constructed by Cytoscape 3.6.0, which was further used for exploring of the major risk factors. Results: Of the 2 094 sequences, 12.18% (255/2 094) were in clusters. A total of 82 transmission clusters were identified. The numbers of clusters and contained sequences in intra-provincial transmission (61, 173) were significantly more than those in inter-provincial transmission (21, 82). The ratio of transmission clustering in MSM increased over time from 2.41% (2/83) during 1996-2008 to 23.61% (72/305) during 2013-2014, showing a significant upward trend (χ(2)=27.800, df=1, P=0.000). The proportion of MSM with inter-provincial transmission clusters were higher than those with intra-provincial transmission clusters, which increased from 0.67% (2/297) during 1996-2008 to 6.36%(30/472) during 2013-2014, showing a significant upward trend (χ(2)=20.276, df=1, P=0.000). The transmission rate in homosexuals of the inter-transmission clusters (86.59%, 71/82) was higher than that of intra-provincial transmission clusters (56.65%, 98/173), and the difference was statistically significant (χ(2)=22.792, P=0.000). The proportion of inter-provincial transmission clusters with more than 2 transmission routes (33.33%, 7/21) was higher than that of intra-provincial clusters (13.11%, 8/61), and the difference was statistically significant (χ(2)=4.273, P=0.039). Results from the transmission network analysis indicated that the proportion of high risk population (degree≥4) with inter-provincial transmission clusters (51.22%, 42/82) was significantly higher than that with intra-provincial transmission clusters (26.59%, 46/173), and the difference was statistically significant (χ(2)=14.932, P=0.000). Inter-provincial clusters were mainly detected in and and MSM. Conclusions: Complex transmission networks were found for HIV-1 CRF01_AE strains in the mainland of China. Inter-provincial transmission clusters increased rapidly, MSM played an important role in the wide spread of the strain. More researches in transmission networks are needed to guide the precision intervention.
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Affiliation(s)
- X L Wang
- State Key Laboratory of Pathogenic Microbiology and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Sciences, Beijing 100071, China
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Zhu XM, Qi X, Li DL, Zhang YW, Li HP, Tan JG. [Effect of a novel cold atmospheric plasma jet treatment with different temperatures on resin-dentin bonding]. Beijing Da Xue Xue Bao Yi Xue Ban 2019; 51:43-48. [PMID: 30773542 DOI: 10.19723/j.issn.1671-167x.2019.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To investigate the effect of different treatment temperatures of a novel cold atmospheric plasma jet treatment on the resin-dentin bonding. METHODS (1) Fifty-two freshly extracted, non-carious and intact third molars were collected. The occlusal one-third of the crown was removed by means of a water-cooled low-speed Isomet saw. One dentin disc [(900 ±100) μm] was prepared for each tooth. The fifty-two dentin discs were randomly divided into control group and experimental groups, of which four were in control group, and forty-eight were divided into four experimental groups according to the different treatment temperatures (4 °C, 10 °C, 20 °C and 30 °C) of the novel radio-frequency atmospheric-pressure glow discharge (RF-APGD) plasma jet, twelve in each group. Each experimental group was divided into three subgroups according to different treatment time (10 s, 20 s and 30 s), with four in each subgroup. The occlusal one-third of the crown was removed by means of a water-cooled low-speed Isomet saw. The morphology of demineralized dentin surfaces was analyzed using field emission scanning electron microscopy. (2) Twenty unerupted, non-carious and intact third molars were randomly divided into five groups, four in each group: control group, untreated; 4 °C, 10 °C, 20 °C and 30 °C experimental groups, each group was treated with the RF-APGD plasma jet for 20 s. The micro-tensile resin dentin bond strength was tested after 20 s RF-APGD plasma jet treatment with different temperatures, using a universal mechanical machine. RESULTS (1) The field emission scanning electron microscopy results indicated that when compared with the control group, a 10 s RF-APGD plasma jet treatment with 30 °C and 20 °C collapsed the collagen scaffold. Collagen fibrils maintained an uncollapsed three-dimensional structure after the 4 °C RF-APGD plasma jet treatment for even 30 s treatment. (2) The microtensile resin dentin bond strength results of the 4 °C RF-APGD plasma jet treatment group (57.8±0.7) MPa were significantly higher than that of the control group [(47.4±0.5) MPa] and 10 s, 20 s and 30 s RF-APGD plasma treatment group [(51.9±0.7) MPa,(29.7±1.0) MPa and (22.2±1.5) MPa] with statistically significant difference (P<0.05). Compared with the control group, the micro-tensile bond strength increased about 21.9% and 9.5% after 4 °C and 10 °C RF-APGD plasma jet treatment, respectively. CONCLUSION Compared with other treatment temperatures, this novel RF-APGD plasma jet treatment with the temperature of 4 °C can preserve the three-dimensional morphology of demineralized dentin better, and can improve the resin-dentin bonding.
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Affiliation(s)
- X M Zhu
- Second Clinical Division, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100101, China
| | - X Qi
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - D L Li
- Second Clinical Division, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100101, China
| | - Y W Zhang
- Department of Stomatology, Aerospace Center Hospital, Beijing 100049, China
| | - H P Li
- Department of Engineering Physics, Tsinghua University, Beijing 100084, China
| | - J G Tan
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China
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Ji YL, Li HP, Ai YY, Li G, He XH, Huang W, Huang RZ, Han B. Enantio- and diastereoselective synthesis of spiropyrazolones via an organocatalytic [1 + 2 + 3] multicomponent reaction. Org Biomol Chem 2019; 17:9217-9225. [DOI: 10.1039/c9ob01927h] [Citation(s) in RCA: 12] [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] [Indexed: 11/21/2022]
Abstract
An asymmetric catalytic [1 + 2 + 3] multicomponent reaction of malononitrile, benzaldehyde and α-arylidene pyrazolinones to produce spiropyrazolones in high yields, with excellent enantioselectivities and good diastereoselectivities.
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Affiliation(s)
- Yan-Ling Ji
- State Key Laboratory of Southwestern Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu
- China
| | - He-Ping Li
- State Key Laboratory of Southwestern Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu
- China
| | - Yue-Yan Ai
- State Key Laboratory of Southwestern Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu
- China
| | - Guo Li
- State Key Laboratory of Southwestern Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu
- China
| | - Xiang-Hong He
- State Key Laboratory of Southwestern Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu
- China
| | - Wei Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu
- China
| | - Rui-Zhen Huang
- Hospital of Chengdu University of Traditional Chinese Medicine
- Chengdu
- China
| | - Bo Han
- State Key Laboratory of Southwestern Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu
- China
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Qin ZH, Zhang JJ, Wang R, Li HP, Gao Y, Tan XH, Sun YQ. Effect of early rehabilitation nursing intervention on the recovery of cognitive function in patients with craniocerebral trauma. Matrix Sci Med 2019. [DOI: 10.4103/mtsm.mtsm_20_19] [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: 11/04/2022] Open
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Chen DQ, Su YL, Li HP. [A review of severity staging classiffication system for idiopathic pulmonary fibrosis]. Zhonghua Jie He He Hu Xi Za Zhi 2018; 41:355-358. [PMID: 29747279 DOI: 10.3760/cma.j.issn.1001-0939.2018.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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Yuan QS, Yang P, Wu AB, Zuo DY, He WJ, Guo MW, Huang T, Li HP, Liao YC. Variation in the Microbiome, Trichothecenes, and Aflatoxins in Stored Wheat Grains in Wuhan, China. Toxins (Basel) 2018; 10:toxins10050171. [PMID: 29695035 PMCID: PMC5983228 DOI: 10.3390/toxins10050171] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 04/15/2018] [Accepted: 04/18/2018] [Indexed: 12/23/2022] Open
Abstract
Contamination by fungal and bacterial species and their metabolites can affect grain quality and health of wheat consumers. In this study, sequence analyses of conserved DNA regions of fungi and bacteria combined with determination of trichothecenes and aflatoxins revealed the microbiome and mycotoxins of wheat from different silo positions (top, middle, and bottom) and storage times (3, 6, 9, and 12 months). The fungal community in wheat on the first day of storage (T0) included 105 classified species (81 genera) and 41 unclassified species. Four species had over 10% of the relative abundance: Alternaria alternata (12%), Filobasidium floriforme (27%), Fusarium graminearum (12%), and Wallemia sebi (12%). Fungal diversity and relative abundance of Fusarium in wheat from top silo positions were significantly lower than at other silo positions during storage. Nivalenol and deoxynivalenol in wheat were 13–34% higher in all positions at 3 months compared to T0, and mycotoxins in wheat from middle and bottom positions at 6 to 12 months were 24–57% higher than at T0. The relative abundance of toxigenic Aspergillus and aflatoxins were low at T0 and during storage. This study provides information on implementation and design of fungus and mycotoxin management strategies as well as prediction models.
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Affiliation(s)
- Qing-Song Yuan
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China.
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Peng Yang
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China.
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Ai-Bo Wu
- Key Laboratory of Food Safety Research Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China.
| | - Dong-Yun Zuo
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China.
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Wei-Jie He
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China.
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Mao-Wei Guo
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China.
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Tao Huang
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China.
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - He-Ping Li
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China.
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Yu-Cai Liao
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China.
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
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Li HP, Zhang LL, Zhang YY, DG Y. 05 Core-shell medicated nanoparticles prepared using coaxial electrospray for fast dissolution of paracetamol. J Investig Med 2017. [DOI: 10.1136/jim-2017-mebabstracts.5] [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: 11/04/2022]
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Li HP, Chen PG, Liu FT, Zhu HS, Jiao XQ, Zhong K, Guo YJ, Zha GM, Han LQ, Lu WF, Wang YY, Yang GY. Characterization and anti-inflammation role of swine IFITM3 gene. Oncotarget 2017; 8:73579-73589. [PMID: 29088728 PMCID: PMC5650283 DOI: 10.18632/oncotarget.20568] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 08/09/2017] [Indexed: 12/30/2022] Open
Abstract
IFITM3 is involved in cell adhesion, apoptosis, immune, and antivirus activity. Furthermore, IFITM3 gene has been considered as a preferential marker for inflammatory diseases, and positive correlation to pathological grades. Therefore, we assumed that IFITM3 was regulated by different signal pathways. To better understand IFITM3 function in inflammatory response, we cloned swine IFITM3 gene, and detected IFITM3 distribution in tissues, as well as characterized this gene. Results indicated that the length of swine IFITM3 gene was 438 bp, encoding 145 amino acids. IFITM3 gene expression abundance was higher in spleen and lungs. Moreover, we next constructed the eukaryotic expression vector PBIFM3 and transfected into PK15 cells, finally obtained swine IFITM3 gene stable expression cell line. Meanwhile, we explored the effects of LPS on swine IFITM3 expression. Results showed that LPS increased IFITM3 mRNA abundance and exhibited time-dependent effect for LPS treatment. To further demonstrate the mechanism that IFITM3 regulated type I IFNs production, we also detected the important molecules expression of TLR4 signaling pathway. In transfected and non-transfected IFITM3 PK15 cells, LPS exacerbated the relative expression of TLR4-NFκB signaling molecules. However, the IFITM3 overexpression suppressed the inflammatory development of PK15 cells. In conclusion, these data indicated that the overexpression of swine IFITM3 could decrease the inflammatory response through TLR4 signaling pathway, and participate in type I interferon production. These findings may lead to an improved understanding of the biological function of IFITM3 in inflammation.
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Affiliation(s)
- He-Ping Li
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - Pei-Ge Chen
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - Fu-Tao Liu
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - He-Shui Zhu
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - Xian-Qin Jiao
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - Kai Zhong
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - Yu-Jie Guo
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - Guang-Ming Zha
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - Li-Qiang Han
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - Wei-Fei Lu
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - Yue-Ying Wang
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - Guo-Yu Yang
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
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He WJ, Zhang L, Yi SY, Tang XL, Yuan QS, Guo MW, Wu AB, Qu B, Li HP, Liao YC. An aldo-keto reductase is responsible for Fusarium toxin-degrading activity in a soil Sphingomonas strain. Sci Rep 2017; 7:9549. [PMID: 28842569 PMCID: PMC5573404 DOI: 10.1038/s41598-017-08799-w] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [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: 03/15/2017] [Accepted: 07/19/2017] [Indexed: 12/12/2022] Open
Abstract
Degradation of toxins by microorganisms is a promising approach for detoxification of agricultural products. Here, a bacterial strain, Sphingomonas S3-4, that has the ability to degrade the mycotoxin deoxynivalenol (DON) was isolated from wheat fields. Incubation of Fusarium-infected wheat grains with S3-4 completely eliminated DON. In S3-4 DON is catabolized into compounds with no detectable phytotoxicity, 3-oxo-DON and 3-epi-DON, via two sequential reactions. Comparative analysis of genome sequences from two DON-degrading strains, S3-4 and Devosia D17, and one non-DON-degrading strain, Sphingobium S26, combined with functional screening of a S3-4 genomic BAC library led to the discovery that a novel aldo/keto reductase superfamily member, AKR18A1, is responsible for oxidation of DON into 3-oxo-DON. DON-degrading activity is completely abolished in a mutant S3-4 strain where the AKR18A1 gene is disrupted. Recombinant AKR18A1 protein expressed in Escherichia coli catalyzed the reversible oxidation/reduction of DON at a wide range of pH values (7.5 to 11) and temperatures (10 to 50 °C). The S3-4 strain and recombinant AKR18A1 also catabolized zearalenone and the aldehydes glyoxal and methyglyoxal. The S3-4 strain and the AKR18A1 gene are promising agents for the control of Fusarium pathogens and detoxification of mycotoxins in plants and in food/feed products.
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Affiliation(s)
- Wei-Jie He
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan, 430070, China
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Limin Zhang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Centre for Magnetic Resonance, Wuhan Institute of Physics and Mathematics, the Chinese Academy of Sciences, Wuhan, 430071, China
| | - Shu-Yuan Yi
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan, 430070, China
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xue-Ling Tang
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan, 430070, China
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Qing-Song Yuan
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan, 430070, China
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Mao-Wei Guo
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan, 430070, China
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Ai-Bo Wu
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan, 430070, China
- Key Laboratory of Food Safety Research Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Bo Qu
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan, 430070, China
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - He-Ping Li
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan, 430070, China
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yu-Cai Liao
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan, 430070, China.
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
- National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, 430070, China.
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Chen PG, Guan YJ, Zha GM, Jiao XQ, Zhu HS, Zhang CY, Wang YY, Li HP. Swine IRF3/IRF7 attenuates inflammatory responses through TLR4 signaling pathway. Oncotarget 2017; 8:61958-61968. [PMID: 28977918 PMCID: PMC5617478 DOI: 10.18632/oncotarget.18740] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 05/22/2017] [Indexed: 01/22/2023] Open
Abstract
To explore the role of IRF3/IRF7 during inflammatory responses, we investigated the effects of swine IRF3/IRF7 on TLR4 signaling pathway and inflammatory factors expression in porcine kidney epithelial PK15 cell lines. We successfully constructed eukaryotic vectors PB-IRF3 and PB-IRF7, transfected these vectors into PK15 cells and observed GFP under a fluorescence microscope. In addition, RT-PCR was also used to detect transfection efficiency. We found that IRF3/IRF7 was efficiently overexpressed in PK15 cells. Moreover, we evaluated the effects of IRF3/IRF7 on the TLR4 signaling pathway and inflammatory factors by RT-PCR. Transfected cells were treated with lipopolysaccharide (LPS) alone, or in combination with a TBK1 inhibitor (LiCl). We revealed that IRF3/IRF7 enhanced IFNα production, and decreased IL-6 mRNA expression. Blocking the TBK1 pathway, inhibited the changes in IFNα, but not IL-6 mRNA. This illustrated that IRF3/IRF7 enhanced IFNα production through TLR4/TBK1 signaling pathway and played an anti-inflammatory role, while IRF3/IRF7 decreased IL-6 expression independent of the TBK1 pathway. Trends in MyD88, TRAF6, TBK1 and NFκB mRNA variation were similar in all treatments. LPS increased MyD88, TRAF6, TBK1 and NFκB mRNA abundance in PBR3/PBR7 and PBv cells, while LiCl blocked the LPS-mediated effects. The levels of these four factors in PBR3/PBR7 cells were higher than those in PBv. These results demonstrated that IRF3/IRF7 regulated the inflammatory response through the TLR4 signaling pathway. Overexpression of swine IRF3/IRF7 in PK15 cells induced type I interferons production, and attenuated inflammatory responses through TLR4 signaling pathway.
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Affiliation(s)
- Pei-Ge Chen
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - Yan-Jing Guan
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - Guang-Ming Zha
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - Xian-Qin Jiao
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - He-Shui Zhu
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - Cheng-Yu Zhang
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - Yue-Ying Wang
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
| | - He-Ping Li
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan, China
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Chen F, Liu C, Zhang J, Lei H, Li HP, Liao YC, Tang H. Combined Metabonomic and Quantitative RT-PCR Analyses Revealed Metabolic Reprogramming Associated with Fusarium graminearum Resistance in Transgenic Arabidopsis thaliana. Front Plant Sci 2017; 8:2177. [PMID: 29354139 PMCID: PMC5758590 DOI: 10.3389/fpls.2017.02177] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 12/12/2017] [Indexed: 05/05/2023]
Abstract
Fusarium head blight disease resulting from Fusarium graminearum (FG) infection causes huge losses in global production of cereals and development of FG-resistant plants is urgently needed. To understand biochemistry mechanisms for FG resistance, here, we have systematically investigated the plant metabolomic phenotypes associated with FG resistance for transgenic Arabidopsis thaliana expressing a class-I chitinase (Chi), a Fusarium-specific recombinant antibody gene (CWP2) and fused Chi-CWP2. Plant disease indices, mycotoxin levels, metabonomic characteristics, and expression levels of several key genes were measured together with their correlations. We found that A. thaliana expressing Chi-CWP2 showed higher FG resistance with much lower disease indices and mycotoxin levels than the wild-type and the plants expressing Chi or CWP2 alone. The combined metabonomic and quantitative RT-PCR analyses revealed that such FG-resistance was closely associated with the promoted biosynthesis of secondary metabolites (phenylpropanoids, alkanoids) and organic osmolytes (proline, betaine, glucose, myo-inositol) together with enhanced TCA cycle and GABA shunt. These suggest that the concurrently enhanced biosyntheses of the shikimate-mediated secondary metabolites and organic osmolytes be an important strategy for A. thaliana to develop and improve FG resistance. These findings provide essential biochemical information related to FG resistance which is important for developing FG-resistant cereals.
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Affiliation(s)
- Fangfang Chen
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
- College of Plant Science and Technology and College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Caixiang Liu
- CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, China
| | - Jingtao Zhang
- CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, China
| | - Hehua Lei
- CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, China
| | - He-Ping Li
- College of Plant Science and Technology and College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Yu-Cai Liao
- College of Plant Science and Technology and College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
- *Correspondence: Yu-Cai Liao
| | - Huiru Tang
- CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, China
- State Key Laboratory of Genetic Engineering, Zhongshan Hospital and School of Life Sciences, Collaborative Innovation Centre for Genetics and Development, Shanghai International Centre for Molecular Phenomics, Metabonomics and Systems Biology Laboratory, Fudan University, Shanghai, China
- Huiru Tang
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Xie BH, He X, Hua RX, Zhang B, Tan GS, Xiong SQ, Liu LS, Chen W, Yang JY, Wang XN, Li HP. Mir-765 promotes cell proliferation by downregulating INPP4B expression in human hepatocellular carcinoma. Cancer Biomark 2016; 16:405-13. [PMID: 27062697 DOI: 10.3233/cbm-160579] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
microRNAs (miRNAs) dysregulation is widely involved in cancer progression and contributed to sustained cell proliferation by directly targeting multiple targets. Therefore, better understanding the underlying mechanism of miRNA in carcinogenesis may improve diagnostic and therapeutic strategies for malignancy. In our study, we found that mir-765 is upregulated in both hepatocellular carcinoma (HCC) cell lines and tissues, compared to human normal liver cell line and adjacent non-cancerous tissues, respectively. Overexpression of mir-765 increased HCC cells proliferation and tumorigenicity, whereas inhibition of mir-765 reverses this effect. Furthermore, we demonstrated that INPP4B as a direct target of mir-765 and ectopic expression of mir-765 repressed INPP4B expression, resulting in upregulation of p-AKT, Cyclin D1, and downregulation of p-FOXO3a, p21 expression in HCC. Strikingly, we found that silencing the expression of INPP4B is the essential biological function of miR-765 during HCC cell proliferation. Collectively, our findings reveal that miR-765 is a potential onco-miR that participates in carcinogenesis of human HCC by suppressing INPP4B expression, and might represent a potential therapeutic target for HCC patients.
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Affiliation(s)
- Bin-Hui Xie
- Department of General Surgery, the First Affiliated Hospital of Gannan Medical University, Guangzhou, Guangdong, China
| | - Xiao He
- Department of General Surgery, the First Affiliated Hospital of Gannan Medical University, Guangzhou, Guangdong, China
| | - Rui-Xi Hua
- Department of Oncology, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Bing Zhang
- Department of Nuclear Medicine, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Guo-Sheng Tan
- Department of Interventional Radiology, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Shi-Qiu Xiong
- Department of Biochemistry, University of Leicester, Leicester, UK
| | - Liang-Shuai Liu
- Department of Interventional Radiology, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Wei Chen
- Department of Interventional Radiology, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Jian-Yong Yang
- Department of Interventional Radiology, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Xiao-Nong Wang
- Department of General Surgery, the First Affiliated Hospital of Gannan Medical University, Guangzhou, Guangdong, China
| | - He-Ping Li
- Department of Oncology, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China.,Department of Interventional Radiology, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
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46
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Yu JT, Li HP, Nie QY, Zou ZY, Liu HQ, Bao CY, Jie YX, Li ZX. Note: Stability control of intermediate frequencies of a three laser far-infrared polarimeter-interferometer system. Rev Sci Instrum 2016; 87:126102. [PMID: 28040971 DOI: 10.1063/1.4971850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Stability of the intermediate frequency (IF) in the far-infrared polarimeter-interferometer diagnostic system is critically important for the long pulse discharge experiments on the EAST tokamak. In this note, a real-time remote/local IF stability control system is described. The measured plasma parameters, including the Faraday rotation angle, electron density, lower hybrid wave, and plasma current, are obtained with the aid of this newly developed IF stability control system.
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Affiliation(s)
- Jiang-Tao Yu
- College of Mechanical Engineering, North China University of Science and Technology, Tangshan, Hebei 063009, People's Republic of China
| | - He-Ping Li
- Department of Engineering Physics, Tsinghua University, Beijing 100084, People's Republic of China
| | - Qiu-Yue Nie
- School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin, Heilongjiang 150001, People's Republic of China
| | - Zhi-Yong Zou
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Hai-Qing Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Cheng-Yu Bao
- Department of Engineering Physics, Tsinghua University, Beijing 100084, People's Republic of China
| | - Yin-Xian Jie
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Zhan-Xian Li
- College of Mechanical Engineering, North China University of Science and Technology, Tangshan, Hebei 063009, People's Republic of China
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Dai L, Wu L, Li H, Hu H, Zhuang Y, Liu K. Evidence of the pressure-induced conductivity switching of yttrium-doped SrTiO3. J Phys Condens Matter 2016; 28:475501. [PMID: 27633181 DOI: 10.1088/0953-8984/28/47/475501] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The electrical transport properties of undoped and yttrium-doped strontium titanate (Sr(Ti1 - x Y x )O3 - δ , x = 0, 0.02) under high pressure were investigated with in situ impedance spectroscopy measurements. A pressure-induced conductivity switching for undoped and 2 mole% Y-doped strontium titanate is observed at around ~10.0 and 7.0 GPa respectively, which are caused by a cubic to tetragonal I4/mcm phase transition. The decrease of the phase transition point of 2 mole% Y-doped strontium titanate can be attributed to larger Y(3+) atoms occupying the B-site and the creation of more oxygen vacancies, which lead to octahedra tilting and symmetry breaking. The results of the voltage-bias dependence of grain-boundary impedance of undoped and 2 mole% Y-doped strontium titanate at different pressures revealed that Schottky-type potential barriers formed at grain boundaries are the key factor for the accumulation of oxygen vacancy at the interface under pressure.
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Affiliation(s)
- LiDong Dai
- Key Laboratory of High-Temperature and High-Pressure Study of the Earth's Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou 550081, People's Republic of China
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He WJ, Yuan QS, Zhang YB, Guo MW, Gong AD, Zhang JB, Wu AB, Huang T, Qu B, Li HP, Liao YC. Aerobic De-Epoxydation of Trichothecene Mycotoxins by a Soil Bacterial Consortium Isolated Using In Situ Soil Enrichment. Toxins (Basel) 2016; 8:toxins8100277. [PMID: 27669304 PMCID: PMC5086637 DOI: 10.3390/toxins8100277] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 09/14/2016] [Accepted: 09/20/2016] [Indexed: 01/05/2023] Open
Abstract
Globally, the trichothecene mycotoxins deoxynivalenol (DON) and nivalenol (NIV) are among the most widely distributed mycotoxins that contaminate small grain cereals. In this study, a bacterial consortium, PGC-3, with de-epoxydation activity was isolated from soil by an in situ soil enrichment method. Screening of 14 soil samples that were sprayed with DON revealed that 4 samples were able to biotransform DON into de-epoxydized DON (dE-DON). Among these, the PGC-3 consortium showed the highest and most stable activity to biotransform DON into dE-DON and NIV into dE-NIV. PGC-3 exhibited de-epoxydation activity at a wide range of pH (5–10) and temperatures (20–37 °C) values under aerobic conditions. Sequential subculturing with a continued exposure to DON substantially reduced the microbial population diversity of this consortium. Analyses of the 16S rDNA sequences indicated that PGC-3 comprised 10 bacterial genera. Among these, one species, Desulfitobacterium, showed a steady increase in relative abundance, from 0.03% to 1.55% (a 52-fold increase), as higher concentrations of DON were used in the subculture media, from 0 to 500 μg/mL. This study establishes the foundation to further develop bioactive agents that can detoxify trichothecene mycotoxins in cereals and enables for the characterization of detoxifying genes and their regulation.
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Affiliation(s)
- Wei-Jie He
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China.
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Qing-Song Yuan
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China.
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - You-Bing Zhang
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China.
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Mao-Wei Guo
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China.
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - An-Dong Gong
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China.
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Jing-Bo Zhang
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China.
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Ai-Bo Wu
- Key Laboratory of Food Safety Research Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China.
| | - Tao Huang
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China.
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Bo Qu
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China.
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - He-Ping Li
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China.
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Yu-Cai Liao
- Molecular Biotechnology Laboratory of Triticeae Crops, Huazhong Agricultural University, Wuhan 430070, China.
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
- National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China.
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Fan WJ, Li HP, Zhu HS, Sui SP, Chen PG, Deng Y, Sui TM, Wang YY. NF-κB is involved in the LPS-mediated proliferation and apoptosis of MAC-T epithelial cells as part of the subacute ruminal acidosis response in cows. Biotechnol Lett 2016; 38:1839-1849. [DOI: 10.1007/s10529-016-2178-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Accepted: 07/11/2016] [Indexed: 12/20/2022]
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50
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Qu SX, Li HP, Ma L, Song JD. Insights Into the Evolution of Chemoreceptor Genes Superfamily in Tyrophagus putrescentiae (Acari: Acaridae). J Med Entomol 2016; 53:753-759. [PMID: 27113112 DOI: 10.1093/jme/tjv257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 12/28/2015] [Indexed: 06/05/2023]
Abstract
All living organisms, including animals, plants, fungi, and bacteria, use the olfactory system to recognize chemicals or pheromone from their environment. Insects detect a volatile substance using odorant receptors (ORs) or gustatory receptors (GRs) and ionotropic receptors (IRs). The gene families of the olfactory system in Acari are still not clear. In this study, we identified seven ORs, one GR, and five IRs from the transcriptome of the storage mite, Tyrophagus putrescentiae Schrank. No olfactory coreceptor was found in this transcriptome. Phylogenetic analysis of these gene families with other Arthropoda species revealed the conservation of carbon dioxide receptors in all tested flying insects and T. putrescentiae Most of these ORs and GRs were unique to three mosquitoes (Anopheles gambiae Giles, Culex quinquefasciatus Say, and Aedes aegypti L.), Ixodes scapularis Say and Pediculus humanus L., indicating their involvement in specific aspects of both gustatory and olfactory perception. Some clades contained receptors obtained from all tested insect vector species, indicating a degree of conservation among some vector-dependent OR lineages. IRs family was a highly dynamic and independent original of the chemoreceptor genes subfamily. Our findings would make it possible for future research on the chemosensory recognition mechanism in Acari.
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Affiliation(s)
- S X Qu
- Institute of Vegetable Crops, Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Jiangsu Academy of Agricultural Sciences, 50 Zhongling St., Nanjing, Jiangsu 210014, China (; ; ; ), and
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- Institute of Vegetable Crops, Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Jiangsu Academy of Agricultural Sciences, 50 Zhongling St., Nanjing, Jiangsu 210014, China (; ; ; ), and
| | - L Ma
- Institute of Vegetable Crops, Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Jiangsu Academy of Agricultural Sciences, 50 Zhongling St., Nanjing, Jiangsu 210014, China (; ; ; ), and
| | - J D Song
- Institute of Vegetable Crops, Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Jiangsu Academy of Agricultural Sciences, 50 Zhongling St., Nanjing, Jiangsu 210014, China (; ; ; ), and
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