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Qu Y, Cai X, Guan Y, Tan J, Cai Z, Liu M, Huang Y, Hu J, Chen WH, Wu JQ. Divergent synthesis of difluoromethylated indole-3-carbinols, bisindolylmethanes and indole-3-methanamines. Org Biomol Chem 2023; 22:90-94. [PMID: 38047717 DOI: 10.1039/d3ob01735d] [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: 12/05/2023]
Abstract
Indole-3-carbinol, bisindolylmethanes (BIMs) and indole-3-methanamines exhibit diverse therapeutic activities. Fluorinated molecules are widely used in pharmaceuticals. Herein we report a facile and straightforward method for the successful synthesis of difluoromethylated indole-3-carbinols, bisindolylmethanes and indole-3-methanamines by a Friedel-Crafts reaction. The reaction involves the in situ generation of difluoroacetaldehyde from difluoroacetaldehyde ethyl hemiacetal in the presence of a base or an acid. This protocol is distinguished by its good to excellent yields, broad substrate compatibility, good functional group tolerance and scalability.
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Affiliation(s)
- Yifei Qu
- School of Biotechnology and Health Sciences, Wuyi University, No. 99 Yingbin Road, Jiangmen 529020, China.
| | - Xiaojia Cai
- School of Biotechnology and Health Sciences, Wuyi University, No. 99 Yingbin Road, Jiangmen 529020, China.
| | - Yuzhuang Guan
- School of Biotechnology and Health Sciences, Wuyi University, No. 99 Yingbin Road, Jiangmen 529020, China.
| | - Jiamin Tan
- School of Biotechnology and Health Sciences, Wuyi University, No. 99 Yingbin Road, Jiangmen 529020, China.
| | - Zhangping Cai
- School of Biotechnology and Health Sciences, Wuyi University, No. 99 Yingbin Road, Jiangmen 529020, China.
| | - Minyun Liu
- School of Biotechnology and Health Sciences, Wuyi University, No. 99 Yingbin Road, Jiangmen 529020, China.
| | - Yasi Huang
- School of Biotechnology and Health Sciences, Wuyi University, No. 99 Yingbin Road, Jiangmen 529020, China.
| | - Jinhui Hu
- School of Biotechnology and Health Sciences, Wuyi University, No. 99 Yingbin Road, Jiangmen 529020, China.
| | - Wen-Hua Chen
- School of Biotechnology and Health Sciences, Wuyi University, No. 99 Yingbin Road, Jiangmen 529020, China.
| | - Jia-Qiang Wu
- School of Biotechnology and Health Sciences, Wuyi University, No. 99 Yingbin Road, Jiangmen 529020, China.
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Chen L, Hu Y, Lu Z, Lin Z, Li L, Wu JQ, Yu ZL, Wang C, Chen WH, Hu J. Design, Synthesis, and Antitumor Efficacy of Substituted 2-Amino[1,2,4]triazolopyrimidines and Related Heterocycles as Dual Inhibitors for Microtubule Polymerization and Janus Kinase 2. J Med Chem 2023; 66:15006-15024. [PMID: 37856840 DOI: 10.1021/acs.jmedchem.3c01690] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
Preclinical and clinical studies have demonstrated the synergistic effect of microtubule-targeting agents in combination with Janus kinase 2 (JAK2) inhibitors, prompting the development of single agents with enhanced therapeutic efficacy by dually inhibiting tubulin polymerization and JAK2. Herein, we designed and synthesized a series of substituted 2-amino[1,2,4]triazolopyrimidines and related heterocycles as dual inhibitors for tubulin polymerization and JAK2. Most of these compounds exhibited potent antiproliferative activity against the selected cancer cells, with compound 7g being the most active. This compound effectively inhibits both tubulin assembly and JAK2 activity. Furthermore, phosphorylated compound 7g (i.e., compound 7g-P) could efficiently convert to compound 7g in vivo. Compound 7g, whether it was administered directly or in the form of a phosphorylated prodrug (i.e., compound 7g-P), significantly inhibited the growth of A549 xenografts in nude mice. The present findings strongly suggest that compound 7g represents a promising chemotherapeutic agent with high antitumor efficacy.
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Affiliation(s)
- Li Chen
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Yunfei Hu
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Zhonghui Lu
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Zeyin Lin
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Lanqing Li
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Jia-Qiang Wu
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Zhi-Ling Yu
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong 852, P. R. China
| | - Chunye Wang
- Department of Pharmacy, Huizhou First Maternal and Child Health Care Hospital, Huizhou 516000, P. R. China
| | - Wen-Hua Chen
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Jinhui Hu
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
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Song L, Li G, Guan W, Zeng Z, Ou Y, Zhao T, Li J, He D, Fang X, Zhang Y, Wu JQ, Tong R, Yao H. Design, synthesis and anti-inflammatory activity study of lansiumamide analogues for treatment of acute lung injury. Biomed Pharmacother 2023; 166:115412. [PMID: 37660652 DOI: 10.1016/j.biopha.2023.115412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/21/2023] [Accepted: 08/28/2023] [Indexed: 09/05/2023] Open
Abstract
Acute lung injury (ALI) is an inflammation-mediated respiratory disease with a high mortality rate. Medications with anti-inflammatory small molecules have been demonstrated in phase I and II clinical trials to considerably reduce the ALI mortality. In this study, two series of lansiumamide analogues were designed, synthesized, and evaluated for anti-inflammatory activity for ALI treatment. We found that compound 8n exhibited the best anti-inflammatory activity through inhibiting LPS-induced expression of the proinflammatory cytokines interleukin-6 (IL-6) and interleukin-1β (IL-1β) in Raw264.7 cells and activating the Nrf2/HO-1 pathway. Furthermore, we discovered in a LPS-induced ALI mice model that compound 8n significantly reduced the infiltration of inflammatory cells into lung tissue to achieve the effect of protecting lung tissues and improving ALI. Additionally, our mice model study revealed that compound 8n had a good expectorant effect. These results consistently support that lansiumamide analogue 8n represents a new class of anti-inflammatory agents with potential as a lead compound for further development into a therapeutic drug for ALI treatment.
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Affiliation(s)
- Liyan Song
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Gang Li
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong 510260, China
| | - Wen Guan
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong 510260, China
| | - Zhijun Zeng
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong 510260, China
| | - Yanghui Ou
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong 510260, China
| | - Tongchao Zhao
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Jiayu Li
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong 510260, China
| | - Dengqin He
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, China
| | - Xiangxiang Fang
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong 510260, China
| | - Yali Zhang
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong 510260, China
| | - Jia-Qiang Wu
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, China
| | - Rongbiao Tong
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong 510260, China; Department of Chemistry, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China.
| | - Hongliang Yao
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong 510260, China.
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Cao ZL, Xu H, Wu JQ, Dai JH, Lin SJ, Zou LF, Yu L, Yang HC. The Clinical Efficacy of Autologous Platelet-Rich Plasma Interventional Circulatory Perfusion Combined with Radiofrequency Ablation and Thermocoagulation in the Treatment of Discogenic Low Back Pain. Int J Clin Pract 2023; 2023:1489905. [PMID: 37497125 PMCID: PMC10368504 DOI: 10.1155/2023/1489905] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 05/09/2023] [Accepted: 05/10/2023] [Indexed: 07/28/2023] Open
Abstract
Objective In this study, we aimed to explore the efficacy of the autologous platelet-rich plasma (PRP) interventional circulatory perfusion combined with radiofrequency ablation and thermocoagulation (RFAT) in the treatment of discogenic low back pain (DLBP). Methods From January 2020 to November 2022, 158 patients of the Second Affiliated Hospital of Nanchang University were selected as the study subjects, and 24 patients met the exclusion criteria. The 134 patients who met the inclusion criteria were divided into 65 patients in the control group (3 patients lost to follow-up) and 69 patients in the observation group (5 patients lost to follow-up), so 126 patients were actually completed the study, including 62 patients in the control group and 64 patients in the observation group. The control group responsible disc received RFAT, and an interventional circulatory perfusion was performed; the observation group received RFAT, and an interventional circulatory perfusion was performed, and then autologous PRP 2 ml was injected. Visual Analog Scale (VAS) and Oswestry Disability Index (ODI) were performed before and 4 and 8 weeks after treatment, and the efficacy was evaluated at 4 and 8 weeks after treatment. The changes of lumbar disc MRI before and after treatment were observed. Results The differences in the Visual Analog Scale (VAS) scores and the Oswestry Disability Index (ODI) between the observation group and the control group before the treatment were not statistically significant (P > 0.05 in both). However, four weeks and eight weeks after the treatment, the VAS scores and the ODIs were significantly lower in both groups than those before the treatment (P < 0.05 in both). In terms of the therapeutic efficacy, eight weeks after the treatment, the total effective rates in the control group and the observation group were 67.7% and 87.5%, respectively, with the observation group being superior to the control group (P < 0.05). Conclusion After RFAT, interventional circulatory perfusion combined with autologous PRP intramedullary injection in the lumbar disc is a safe and effective treatment for DLBP, and it had superior long-term effects in improving the clinical symptoms and patient dysfunction than the RFAT and interventional circulatory perfusion.
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Affiliation(s)
- Zhong-Liu Cao
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang 330000, China
| | - Hu Xu
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang 330000, China
| | - Jia-Qiang Wu
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang 330000, China
| | - Jiang-Hua Dai
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang 330000, China
| | - Si-Jian Lin
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang 330000, China
| | - Ling-Feng Zou
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang 330000, China
| | - Ling Yu
- Department of Blood Transfusion, The Second Affiliated Hospital of Nanchang University, Nanchang 330000, China
| | - Hui-Chun Yang
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang 330000, China
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Xiong Z, Hu CM, Zhu WJ, Wu SM, Wang D, Liu Y, Lin J, Guo S, Wu JQ, Xu XT. Bicyclic Amidine-Triggered Cyclization of o-Alkynylisocyanobenzenes: Synthesis of Lactam-Derived Quinolines. J Org Chem 2023. [PMID: 37312277 DOI: 10.1021/acs.joc.3c00405] [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: 06/15/2023]
Abstract
Efficient access to the synthesis of lactam-derived quinoline through a bicyclic amidine-triggered cyclization reaction from readily prepared o-alkynylisocyanobenzenes has been developed. The reaction was initiated by nucleophilic attack of the bicyclic amidines to o-alkynylisocyanobenzenes, subsequently with intramolecular cyclization to produce a DBU-quinoline-based amidinium salt, followed by hydrolysis to afford the lactam-derived quinoline in moderate to good yields.
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Affiliation(s)
- Zhuang Xiong
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P.R. China
| | - Chun-Mei Hu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P.R. China
| | - Wen-Jian Zhu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P.R. China
| | - Si-Min Wu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P.R. China
| | - Dan Wang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P.R. China
| | - Yang Liu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P.R. China
| | - Jing Lin
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P.R. China
| | - Suqin Guo
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P.R. China
| | - Jia-Qiang Wu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P.R. China
| | - Xue-Tao Xu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P.R. China
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6
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Sun W, Cui X, Qu J, Cai X, Hu J, Xiong Z, Guo S, Xu J, Chen WH, Wu JQ. Facile access to 2-hydroxy-2-substituted indole-3-ones via a copper-catalyzed oxidative cyclization of 2-arylethynylanilines. Chem Commun (Camb) 2023. [PMID: 37221891 DOI: 10.1039/d3cc01390a] [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: 05/25/2023]
Abstract
This paper reports a practical and versatile oxidative cyclization of 2-arylethynylanilines towards 2-hydroxy-2-substituted indol-3-ones via a copper-catalyzed radical approach in the presence of O2. The transformation of 2-hydroxy-2-arylindol-3-ones to 3-hydroxy-3-arylindol-2-ones proceeds well with good yields and highlights the practicability and utility of this catalytic system. Mechanistic investigations showed that the acetyl substituent on 2-arylaethynylanilines played an important role in the formation of the cyclic products and the reaction proceeded via an N-center radical-based 5-endo-dig aza-cyclization pathway.
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Affiliation(s)
- Weiqiang Sun
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, China.
| | - Xueli Cui
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, China.
| | - Jing Qu
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, China.
| | - Xiaojia Cai
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, China.
| | - Jinhui Hu
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, China.
| | - Zhuang Xiong
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, China.
| | - Suqin Guo
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, China.
| | - Jun Xu
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, China.
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Wen-Hua Chen
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, China.
| | - Jia-Qiang Wu
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, China.
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7
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Tan RX, Li WH, Pang JM, Zhong SM, Huang XY, Deng JZ, Zhou LY, Wu JQ, Wang XQ. Design, synthesis, and evaluation of 2,2'-bipyridyl derivatives as bifunctional agents against Alzheimer's disease. Mol Divers 2023:10.1007/s11030-023-10651-5. [PMID: 37119457 DOI: 10.1007/s11030-023-10651-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 04/14/2023] [Indexed: 05/01/2023]
Abstract
Alzheimer's disease (AD) is a complex multifactorial neurodegenerative disease. Metal ion dyshomeostasis and Aβ aggregation have been proposed to contribute to AD progression. Metal ions can bind to Aβ and promote Aβ aggregation, and ultimately lead to neuronal death. Bifunctional (metal chelation and Aβ interaction) compounds are showing promise against AD. In this work, eleven new 3,3'-diamino-2,2'-bipyridine derivatives 4a-4k were synthesized, and evaluated as bifunctional agents for AD treatment. In vitro Aβ aggregation inhibition assay confirmed that most of the synthesized compounds exhibited significant self-induced Aβ1-42 aggregation inhibition. Among them, compound 4d displayed the best inhibitory potency of self-induced Aβ1-42 aggregation with IC50 value of 9.4 µM, and it could selectively chelate with Cu2+ and exhibited 66.2% inhibition of Cu2+-induced Aβ1-42 aggregation. Meanwhile, compound 4d showed strong neuroprotective activity against Aβ1-42 and Cu2+-treated Aβ1-42 induced cell damage. Moreover, compound 4d in high dose significantly reversed Aβ-induced memory impairment in mice.
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Affiliation(s)
- Ren-Xian Tan
- School of Pharmacy, Guangdong Medical University, Dongguan, 523808, Guangdong, China
| | - Wei-Hao Li
- School of Pharmacy, Guangdong Medical University, Dongguan, 523808, Guangdong, China
| | - Jia-Min Pang
- School of Pharmacy, Guangdong Medical University, Dongguan, 523808, Guangdong, China
| | - Si-Min Zhong
- School of Pharmacy, Guangdong Medical University, Dongguan, 523808, Guangdong, China
| | - Xin-Yi Huang
- School of Pharmacy, Guangdong Medical University, Dongguan, 523808, Guangdong, China
| | - Jun-Ze Deng
- School of Pharmacy, Guangdong Medical University, Dongguan, 523808, Guangdong, China
| | - Lu-Yi Zhou
- School of Pharmacy, Guangdong Medical University, Dongguan, 523808, Guangdong, China
| | - Jia-Qiang Wu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China
| | - Xiao-Qin Wang
- School of Pharmacy, Guangdong Medical University, Dongguan, 523808, Guangdong, China.
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8
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Cui X, Qu J, Yi J, Sun W, Hu J, Guo S, Jin JW, Chen WH, Wong WL, Wu JQ. Rh(III)-catalyzed redox-neutral C-H alkenylation of benzamides with gem-difluorohomoallylic silyl ethers via β-H elimination. Chem Commun (Camb) 2023; 59:3747-3750. [PMID: 36897608 DOI: 10.1039/d3cc00529a] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
Fluorinated molecules are widely used in pharmaceutical and agrochemical industries. Herein we report the synthesis of 2-(3,3-difluoro-4-(silyloxy)but-1-en-1-yl)benzamides from the unprecedented rhodium(III)-catalyzed alkenylation of various benzamides with difluorohomoallylic silyl ethers. The practicability of this protocol is demonstrated by its broad substrate compatibility, good functional group tolerance, ready scalability and high regioselectivity. The oxygen in difluorohomoallylic silyl ethers makes β-H elimination feasible, which suppresses both the β-F elimination and dialkenylation of benzamides. This redox-neutral reaction proceeds efficiently via N-O bond cleavage without external oxidants and thus provides new opportunities for the synthesis of elaborate difluorinated compounds from readily available fluorinated synthons.
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Affiliation(s)
- Xueli Cui
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, People's Republic of China.
| | - Jing Qu
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, People's Republic of China.
| | - Jianfeng Yi
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, People's Republic of China.
| | - Weiqiang Sun
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, People's Republic of China.
| | - Jinhui Hu
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, People's Republic of China.
| | - Suqin Guo
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, People's Republic of China.
| | - Jing-Wei Jin
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, People's Republic of China.
| | - Wen-Hua Chen
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, People's Republic of China.
| | - Wing-Leung Wong
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, People's Republic of China.
| | - Jia-Qiang Wu
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, People's Republic of China.
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9
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Li G, Wu JQ, Cai X, Guan W, Zeng Z, Ou Y, Wu X, Li J, Fang X, Liu J, Zhang Y, Wang H, Yin C, Yao H. Design, synthesis, and biological evaluation of diaryl heterocyclic derivatives targeting tubulin polymerization with potent anticancer activities. Eur J Med Chem 2023; 252:115284. [PMID: 36940610 DOI: 10.1016/j.ejmech.2023.115284] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [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: 10/23/2022] [Revised: 01/08/2023] [Accepted: 03/13/2023] [Indexed: 03/18/2023]
Abstract
A series of diaryl heterocyclic analogues were designed and synthesized as tubulin polymerization inhibitors. Among them, compound 6y showed the highest antiproliferative activity against HCT-116 colon cancer cell line with an IC50 values of 2.65 μM. Compound 6y also effectively inhibited tubulin polymerization in vitro (IC50 of 10.9 μM), and induced HCT-116 cell cycle arrest in G2/M phase. In addition, compound 6y exhibited high metabolic stability on human liver microsomes (T1/2 = 106.2 min). Finally, 6y was also effective in suppressing tumor growth in a HCT-116 mouse colon model without apparent toxicity. Collectively, these results suggest that 6y represents a new class of tubulin inhibitors deserving further investigation.
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Affiliation(s)
- Gang Li
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510260, China
| | - Jia-Qiang Wu
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen, 529020, China
| | - Xiaojia Cai
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen, 529020, China
| | - Wen Guan
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510260, China
| | - Zhijun Zeng
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510260, China
| | - Yanghui Ou
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510260, China
| | - Xiaoyun Wu
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Jiayu Li
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510260, China
| | - Xiangxiang Fang
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510260, China
| | - Jinling Liu
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510260, China
| | - Yali Zhang
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510260, China
| | - Huamin Wang
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510260, China
| | - Canqiang Yin
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510260, China
| | - Hongliang Yao
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510260, China.
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Li G, He D, Cai X, Guan W, Zhang Y, Wu JQ, Yao H. Advances in the development of phosphodiesterase-4 inhibitors. Eur J Med Chem 2023; 250:115195. [PMID: 36809706 DOI: 10.1016/j.ejmech.2023.115195] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [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: 11/21/2022] [Revised: 02/06/2023] [Accepted: 02/07/2023] [Indexed: 02/11/2023]
Abstract
Phosphodiesterase 4 (PDE4) hydrolyzes cyclic adenosine monophosphate (cAMP) and plays a vital roles in many biological processes. PDE4 inhibitors have been widely studied as therapeutics for the treatment of various diseases, including asthma, chronic obstructive pulmonary disease (COPD) and psoriasis. Many PDE4 inhibitors have progressed to clinical trials and some have been approved as therapeutic drugs. Although many PDE4 inhibitors have been approved to enter clinical trials, however, the development of PDE4 inhibitors for the treatment of COPD or psoriasis has been hampered by their side effects of emesis. Herein, this review summarizes advances in the development of PDE4 inhibitors over the last ten years, focusing on PDE4 sub-family selectivity, dual target drugs, and therapeutic potential. Hopefully, this review will contribute to the development of novel PDE4 inhibitors as potential drugs.
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Affiliation(s)
- Gang Li
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510260, China
| | - Dengqin He
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jianmen, 529020, China
| | - Xiaojia Cai
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jianmen, 529020, China
| | - Wen Guan
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510260, China
| | - Yali Zhang
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510260, China
| | - Jia-Qiang Wu
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jianmen, 529020, China
| | - Hongliang Yao
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510260, China.
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11
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Chen ZH, Su XX, Li Q, Wu JQ, Ou TM, Wang H. Synthesis of α-Boryl Ketones via Hydration or Oxidation of B(MIDA)-Decorated Alkynes. Org Lett 2023; 25:1099-1103. [PMID: 36790117 DOI: 10.1021/acs.orglett.2c04343] [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: 02/16/2023]
Abstract
α-Boryl ketones are traditionally challenging targets in organic synthesis. Reported herein is a mild and metal-free synthesis of α-boryl ketones via the hydration or oxidation of N-methyliminodiacetyl boronate (B(MIDA))-decorated alkynes. A new hydration system comprised of AcCl and H2O in HFIP allows the hydration of arylethynyl B(MIDA)s at room temperature with decent functional group tolerance. An oxidative carbon deletion process of propargylic B(MIDA)s is also developed for the synthesis of aliphatic α-boryl ketones. An intriguing β-boron effect was observed to account for the unique site- and chemoselectivities. The application of the products in the synthesis of borylated heterocycles was demonstrated.
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Affiliation(s)
- Zhi-Hao Chen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China
| | - Xiao-Xuan Su
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China
| | - Qingjiang Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China
| | - Jia-Qiang Wu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529000, China
| | - Tian-Miao Ou
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China
| | - Honggen Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China.,Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, Guangzhou, Guangdong 510006, China
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Hu J, Chen L, Lu Z, Yao H, Hu Y, Feng L, Pang Y, Wu JQ, Yu Z, Chen WH. Design, Synthesis and Antitumor Activity of Novel Selenium-Containing Tepotinib Derivatives as Dual Inhibitors of c-Met and TrxR. Molecules 2023; 28:molecules28031304. [PMID: 36770971 PMCID: PMC9921947 DOI: 10.3390/molecules28031304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/21/2023] [Accepted: 01/23/2023] [Indexed: 01/31/2023] Open
Abstract
Cellular mesenchymal-epithelial transition factor (c-Met), an oncogenic transmembrane receptor tyrosine kinase (RTK), plays an essential role in cell proliferation during embryo development and liver regeneration. Thioredoxin reductase (TrxR) is overexpressed and constitutively active in most tumors closely related to cancer recurrence. Multi-target-directed ligands (MTDLs) strategy provides a logical approach to drug combinations and would adequately address the pathological complexity of cancer. In this work, we designed and synthesized a series of selenium-containing tepotinib derivatives by means of selenium-based bioisosteric modifications and evaluated their antiproliferative activity. Most of these selenium-containing hybrids exhibited potent dual inhibitory activity toward c-Met and TrxR. Among them, compound 8b was the most active, with an IC50 value of 10 nM against MHCC97H cells. Studies on the mechanism of action revealed that compound 8b triggered cell cycle arrest at the G1 phase and caused ROS accumulations by targeting TrxR, and these effects eventually led to cell apoptosis. These findings strongly suggest that compound 8b serves as a dual inhibitor of c-Met and TrxR, warranting further exploitation for cancer therapy.
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Affiliation(s)
- Jinhui Hu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
- Correspondence: (J.H.); (W.-H.C.)
| | - Li Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Zhonghui Lu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Han Yao
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Yunfei Hu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Luanqi Feng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Yanqing Pang
- Department of Phase I Clinical Research Center, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Jia-Qiang Wu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Zhiling Yu
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Wen-Hua Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
- Correspondence: (J.H.); (W.-H.C.)
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13
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Zan YM, Zheng TP, Wang Y, Shao JF, Wang ZY, Zhao WH, Wu JQ, Xu W. Combining a Frailty Index Based on Laboratory Data and Pneumonia Severity Assessments to Predict In-Hospital Outcomes in Older Adults with Community-Acquired Pneumonia. J Nutr Health Aging 2023; 27:270-276. [PMID: 37170434 DOI: 10.1007/s12603-023-1905-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
OBJECTIVES Due to the increased morbidity, mortality, and cost of community-acquired pneumonia (CAP) in older people, strategies directed at improving disease evaluation and prevention are imperative. We independently compared the 30-day in-hospital mortality prediction ability of a frailty index based on laboratory data (FI-Lab) with that of the CURB-65 and the Pneumonia Severity Index (PSI) and then proposed combining them to further improve prediction efficiency. DESIGN Retrospective cohort study. SETTING AND PARTICIPANTS Patients aged ≥ 65 years (n = 2039) with CAP who were admitted to Jiangsu Provincial People's Hospital of Nanjing Medical University and Jiangsu Provincial Hospital of Chinese Medicine from January 2019 to June 2022. MEASURES The 29-item FI-Lab, PSI and, CURB-65 were administered at admission. We defined frailty by the cut-off value of the FI-Lab score (> 0.43). Multivariable logistic regression analysis, together with the calculation of the area under the receiver operating characteristic curve (ROC-AUC), was conducted to identify stratified risks and relationships between the three indices and 30-day mortality. Participants were divided into the following three groups based on age: 65-74 years, 75-84 years, and ≥ 85 years. Hazard ratios (HRs) and 95% confidence intervals (CIs) for mortality due to frailty were calculated. RESULTS A total of 495 participants ranging from 65 to 100 years of age were ultimately included and divided into age groups (65-74 years, n = 190, 38.4%; 75-84 years, n = 183, 37.0%; ≥ 85 years, n = 122, 24.6%). A total of 142 (28.7%) of the 495 patients were defined as having frailty. All three scores tested in this study were significantly associated with 30-day mortality in the total sample. The ORs were as follows: 1.06 (95% CI: 1.03-1.09, P < 0.001) and 2.33 (95% CI: 1.26-4.31, P = 0.007) for the FI-Lab when the score was treated as a continuous and categorical variable, respectively; 1.04 (95% CI: 1.02-1.05, P < 0.001) for the PSI; and 3.70 (95% CI: 2.48-5.50, P < 0.001) for the CURB-65. In the total sample, the ROC-AUCs were 0.783 (95% CI: 0.744-0.819) for the FI-Lab, 0.812 (95% CI: 0.775-0.845) for the PSI, and 0.799 (95% CI: 0.761-0.834) for the CURB-65 (P < 0.001). The ROC-AUC slightly improved when the FI-Lab was added to the PSI (AUC 0.850, 95% CI: 0.809-0.892, P = 0.031) and to the CURB-65 (AUC 0.839, 95% CI: 0.794-0.885, P = 0.002). Older patients with frailty showed a higher risk of in-hospital mortality, with an HR of 2.25 (95% CI: 1.14-3.58, P < 0.001). CONCLUSION AND IMPLICATIONS The FI-Lab seems to generate simple and readily available data, suggesting that it could be a useful complement to the CURB-65 and the PSI as effective predictors of 30-day mortality due to CAP in older populations.
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Affiliation(s)
- Y M Zan
- Wei Xu, MD, Key Laboratory of Geriatrics of Jiangsu Province, Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Road, Nanjing 210029, China. Email address: (Wei Xu). Tel: 86-25-68305111. Fax: 86-25-68305111
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Zhao S, Cai X, Lu Y, Hu J, Xiong Z, Jin J, Li Y, Wang H, Wu JQ. Cp*Ir(III) and Cp*Rh(III)-catalyzed annulation of salicylaldehydes with fluorinated vinyl tosylates. Chem Commun (Camb) 2022; 58:8966-8969. [PMID: 35861224 DOI: 10.1039/d2cc02194c] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild, selective and redox-neutral Cp*Ir(III)- and Cp*Rh(III)-catalyzed C-H activation/annulation of salicylaldehydes with fluorovinyl tosylates is reported. The use of monofluorovinyl tosylate favors the synthesis of C2- and C3-substitution-free chromones via C-H activation/β-F elimination/annulation, whereas difluorovinyl tosylate leads to the construction of C2-fluoroalkoxy chromones. Mild reaction conditions and good functional-group tolerance were observed. Further functionalization of the resulting chromones via halogenation, alkynylation, alkylation and hydrocyanation was successfully realized.
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Affiliation(s)
- Shuwen Zhao
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, China.
| | - Xiaojia Cai
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, China.
| | - Yuying Lu
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, China.
| | - Jinhui Hu
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, China.
| | - Zhuang Xiong
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, China.
| | - Jingwei Jin
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, China.
| | - Yin Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Honggen Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Jia-Qiang Wu
- School of Biotechnology and Health Sciences, Wuyi University, 22 Dongchengcun, Jiangmen 529020, China.
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Hu Y, Chen L, Zou C, He J, Feng L, Wu JQ, Chen WH, Hu J. Access to 3-Amino-[1,2,4]-triazolo Pyridines and Related Heterocycles via Electrochemically Induced Desulfurative Cyclization. Org Lett 2022; 24:5137-5142. [PMID: 35802033 DOI: 10.1021/acs.orglett.2c01968] [Citation(s) in RCA: 6] [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: 11/30/2022]
Abstract
An efficient, one-pot approach has been established for synthesizing a wide range of 3-amino-[1,2,4]-triazolo pyridines and related heterocycles from the electrochemically induced desulfurative cyclization of 2-hydrazinopyridines with isothiocyanates. The protocol allows for the formation of C-N bonds under simple conditions without transition metals or external oxidants. The practicability of this strategy is demonstrated by its broad substrate scope, good functional group compatibility, and gram-scale synthesis. The late-stage modification of 3-amino-[1,2,4]-triazolo pyridines enables us to obtain several molecules with potent anticancer activity.
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Affiliation(s)
- Yunfei Hu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Li Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Canlin Zou
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Jiangtao He
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Luanqi Feng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Jia-Qiang Wu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Wen-Hua Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Jinhui Hu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
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Su XX, Chen YR, Wu JQ, Wu XZ, Li KT, Wang XN, Sun JW, Wang H, Ou TM. Design, synthesis, and evaluation of 9-(pyrimidin-2-yl)-9H-carbazole derivatives disrupting mitochondrial homeostasis in human lung adenocarcinoma. Eur J Med Chem 2022; 232:114200. [DOI: 10.1016/j.ejmech.2022.114200] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/06/2022] [Accepted: 02/11/2022] [Indexed: 12/12/2022]
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Wang XQ, Zhou LY, Tan RX, Liang GP, Fang SX, Li W, Xie M, Wen YH, Wu JQ, Chen YP. Design, Synthesis, and Evaluation of Chalcone Derivatives as Multifunctional Agents against Alzheimer's Disease. Chem Biodivers 2021; 18:e2100341. [PMID: 34510699 DOI: 10.1002/cbdv.202100341] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 09/09/2021] [Indexed: 01/08/2023]
Abstract
Fifteen chalcone derivatives 3a-3o were synthesized, and evaluated as multifunctional agents against Alzheimer's disease. In vitro studies revealed that these compounds inhibited self-induced Aβ1-42 aggregation effectively ranged from 45.9-94.5 % at 20 μM, and acted as potential antioxidants. Their structure-activity relationships were summarized. In particular, (2E)-3-[4-(dimethylamino)phenyl]-1-(pyridin-2-yl)prop-2-en-1-one (3g) exhibited an excellent inhibitory activity of 94.5 % at 20 μM, and it could disassemble the self-induced Aβ1-42 aggregation fibrils with ratio of 57.1 % at 20 μM concentration. In addition, compound 3g displayed good chelating ability for Cu2+ , and could effectively inhibit and disaggregate Cu2+ -induced Aβ aggregation. Moreover, compound 3g exerted low cytotoxicity, significantly reversed Aβ1-42 -induced SH-SY5Y cell damage. More importantly, compound 3g remarkably ameliorated scopolamine-induced memory impairment in mice. In summary, all the results revealed compound 3g was a potential multifunctional agent for AD therapy.
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Affiliation(s)
- Xiao-Qin Wang
- School of Pharmacy, Guangdong Medical University, Dongguan, 523808, Guangdong, China
| | - Lu-Yi Zhou
- School of Pharmacy, Guangdong Medical University, Dongguan, 523808, Guangdong, China
| | - Ren-Xian Tan
- School of Pharmacy, Guangdong Medical University, Dongguan, 523808, Guangdong, China
| | - Guo-Peng Liang
- School of Pharmacy, Guangdong Medical University, Dongguan, 523808, Guangdong, China
| | - Si-Xian Fang
- School of Pharmacy, Guangdong Medical University, Dongguan, 523808, Guangdong, China
| | - Wei Li
- School of Pharmacy, Guangdong Medical University, Dongguan, 523808, Guangdong, China
| | - Mei Xie
- School of Pharmacy, Guangdong Medical University, Dongguan, 523808, Guangdong, China
| | - Yu-Hao Wen
- School of Pharmacy, Guangdong Medical University, Dongguan, 523808, Guangdong, China
| | - Jia-Qiang Wu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China
| | - Yi-Ping Chen
- School of Pharmaceutical Sciences, Guangxi University of Chinese Medicine, Nanning, 530200, Guangxi, China
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Wu JQ, Liu YY, Li F, Wu XZJ, Yao ZH, Kong FC, Zhou WL, Tang WY, Teng Y, Feng JF. [Cohort study of efficacy and safety of polatuzumab vedotin combined with immunochemotherapy in patients with relapse/refractory diffuse large B cell lymphoma]. Zhonghua Yi Xue Za Zhi 2021; 101:1985-1990. [PMID: 34225420 DOI: 10.3760/cma.j.cn112137-20201030-02971] [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 efficacy and tolerability of Polatuzumab vedotin+rituximab±bendamustine (Pola-(B)R) in relapse/refractory diffuse large B cell lymphoma (R/R DLBCL) patients. Methods: The clinical data of 21 patients enrolled in Chinese Pola compassionate use program (CUP) in 4 centers from November 2019 to August 2020 were collected. There were 15 males and 6 females, and the median age was 56 years (ranged 25-76 years). Of the patients, 10 cases received Pola-BR regimen and the other 11 received Pola-R. Their clinical features, regimens, efficacy, and adverse events (AEs) were retrospectively analyzed. Results: Twenty-one patients with at least one efficacy evaluation were included. At data analysis cut-off point (12 Aug. 2020), the best overall response (BOR) rate was 81.0% (17/21) and the complete response (CR) rate was 19.0% (4/21). Kaplan-Meier survival estimation was performed, at a median follow-up of 54 days, three patients (14.3%) had disease progressed, and 18 patients (85.7%) were censored; the median progression-free survival (mPFS) was estimated to be 148 days. The incidence of adverse effects (AEs) of any grade was higher in Pola-BR group than Pola-R group (80.0% vs 63.6%). However, the incidence of grade 3-4 AEs were close in the two groups (30.0% vs 29.3%). The most common hematological toxicities were thrombocytopenia (28.6%, 6/21), neutropenia (28.6%, 6/21) and anemia (14.3%, 3/21), respectively. One patient with pneumonia and 1 patient with hemophagocytic syndrome recovered after symptomatic treatment. No peripheral neuropathy of grade≥2 was observed. Conclusions: The preliminary data suggested that, for heavily treated Chinese R/R DLBCL, the Pola-(B)R regimen still achieves promising efficacy and tolerable safety.
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Affiliation(s)
- J Q Wu
- Department of Medical Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research/the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing 210009, China
| | - Y Y Liu
- Department of Internal Medicine, Henan Cancer Hospital, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - F Li
- Department of Hematology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - X Z J Wu
- Department of Hematology/Lymphoma Center, the First Affiliated Hospital of Hainan Medical University, Haikou 570102, China
| | - Z H Yao
- Department of Internal Medicine, Henan Cancer Hospital, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - F C Kong
- Department of Hematology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - W L Zhou
- Department of Hematology/Lymphoma Center, the First Affiliated Hospital of Hainan Medical University, Haikou 570102, China
| | - W Y Tang
- Department of Medical Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research/the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing 210009, China
| | - Y Teng
- Department of Medical Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research/the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing 210009, China
| | - J F Feng
- Department of Medical Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research/the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing 210009, China
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Wu CJ, Wu JQ, Hu Y, Pu S, Lin Y, Zeng Z, Hu J, Chen WH. Design, synthesis and biological evaluation of indole-based [1,2,4]triazolo[4,3-a] pyridine derivatives as novel microtubule polymerization inhibitors. Eur J Med Chem 2021; 223:113629. [PMID: 34175541 DOI: 10.1016/j.ejmech.2021.113629] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 05/23/2021] [Accepted: 06/08/2021] [Indexed: 11/29/2022]
Abstract
A series of indole-based [1,2,4]triazolo [4,3-a]pyridine derivatives was designed and synthesized as novel microtubulin polymerization inhibitors by using a conformational restriction strategy. These compounds exhibited moderate to potent anti-proliferative activities against a panel of cancer cell lines (HeLa, A549, MCF-7 and HCT116). Among them, compound 12d featuring a N-methyl-5-indolyl substituent at the C-6 position of the [1,2,4]triazolo [4,3-a]pyridine core exhibited the highest antiproliferative activity with the IC50 values ranging from 15 to 69 nM, and remarkable inhibitory effect on tubulin polymerization with an IC50 value of 1.64 μM. Mechanistic studies revealed that compound 12d induced cellular apoptosis and cell cycle arrest at the G2/M phase in a dose-dependent fashion. Moreover, compound 12d significantly suppressed wound closure and disturbed microtubule networks.
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Affiliation(s)
- Cheng-Jun Wu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, PR China
| | - Jia-Qiang Wu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, PR China
| | - Yunfei Hu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, PR China
| | - Suyun Pu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, PR China
| | - Yuying Lin
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, PR China
| | - Zimai Zeng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, PR China
| | - Jinhui Hu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, PR China.
| | - Wen-Hua Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, PR China.
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20
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Liu Y, Li JL, Liu XG, Wu JQ, Huang ZS, Li Q, Wang H. Radical Borylative Cyclization of Isocyanoarenes with N-Heterocyclic Carbene Borane: Synthesis of Borylated Aza-arenes. Org Lett 2021; 23:1891-1897. [PMID: 33591193 DOI: 10.1021/acs.orglett.1c00309] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Borylated aza-arenes are of great importance in the area of organic synthesis. A radical borylative cyclization of isocyanoarenes with N-heterocyclic carbene borane (NHC-BH3) under metal-free conditions was developed. The reaction allows the efficient assembly of several types of borylated aza-arenes (phenanthridines, benzothiazoles, etc.), which are difficult to access using alternative methods. Mild reaction conditions, a good functional-group tolerance, and generally good efficiencies were observed. The utility of these products is demonstrated, and the mechanism is discussed.
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Affiliation(s)
- Yao Liu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Ji-Lin Li
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Xu-Ge Liu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Jia-Qiang Wu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Zhi-Shu Huang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Qingjiang Li
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Honggen Wang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
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Xie H, Zhong M, Wang XT, Wu JQ, Cai YQ, Liu J, Shu B, Che T, Zhang SS. Cp*Ir(iii)- and Cp*Rh(iii)-catalyzed C(sp2)–H amination of arenes using thioethers as directing groups. Org Chem Front 2021. [DOI: 10.1039/d0qo01353f] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A mild and selective Cp*Ir(iii)- and Cp*Rh(iii)-catalyzed direct C(sp2)–H amination of arenes and three types of nitrene precursor reagents is reported, with the assistance of a thioether directing group.
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Affiliation(s)
- Hui Xie
- Center for Drug Research and Development
- Guangdong Pharmaceutical University
- Guangzhou
- China
| | - Mei Zhong
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- PR China
| | - Xiao-Tong Wang
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- PR China
| | - Jia-Qiang Wu
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- China
| | - Yan-Qu Cai
- Center for Drug Research and Development
- Guangdong Pharmaceutical University
- Guangzhou
- China
| | - Jidan Liu
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- People's Republic of China
| | - Bing Shu
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- PR China
| | - Tong Che
- Center for Drug Research and Development
- Guangdong Pharmaceutical University
- Guangzhou
- China
- Jiangxi Chinese Medicine Science Center of DICP
| | - Shang-Shi Zhang
- Center for Drug Research and Development
- Guangdong Pharmaceutical University
- Guangzhou
- China
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22
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Shu B, Chen SY, Deng NX, Zheng T, Xie H, Xie XL, Wu JQ, Cao H, Zhang SS. Rhodium( iii)-catalyzed C–H/C–F activation sequence: expedient and divergent synthesis of 2-benzylated indoles and 2,2′-bis(indolyl)methanes. Org Chem Front 2021. [DOI: 10.1039/d1qo00462j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A novel method for the construction of fluorinated 2-benzylated indoles and 2,2’-bis(indolyl)methanes was developed via Rh(iii)-catalyzed C–H/C–F activation of arenes with employing 3,3-difluoro-2-exo-methylidene indolines as cross-coupling partner.
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Affiliation(s)
- Bing Shu
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- P. R. China
- Center for Drug Research and Development
| | - Shao-Yong Chen
- Center for Drug Research and Development
- Guangdong Pharmaceutical University
- Guangzhou
- P. R. China
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center
| | - Nan-Xiang Deng
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- P. R. China
| | - Tao Zheng
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- P. R. China
| | - Hui Xie
- Center for Drug Research and Development
- Guangdong Pharmaceutical University
- Guangzhou
- P. R. China
| | - Xiao-Ling Xie
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- P. R. China
| | - Jia-Qiang Wu
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- P. R. China
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center
- Guangdong Pharmaceutical University
- Zhongshan
- P. R. China
| | - Shang-Shi Zhang
- Center for Drug Research and Development
- Guangdong Pharmaceutical University
- Guangzhou
- P. R. China
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23
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Huang H, Lan LQ, Wu JQ, Su YW, Xue CH, Liu YM. [Effect of bone marrow mesenchymal stem cells on paraquat-induced pulmonary fibrosis in rats]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2020; 38:332-338. [PMID: 32536068 DOI: 10.3760/cma.j.cn121094-20190711-00214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the effect of the injected bone marrow mesenchymal stem cells (BMSC) on rats with pulmonary fibrosis induced by paraquat (PQ) during different poisoning periods and explore the potential mechanism. Methods: From October to December 2018, BMSCs of SPF SD rats were isolated and purified by whole-bone marrow adherent culture method and cultured to the Third Generation (P3) . The surface antigens CD29, CD90, CD45 and CD34 of P3 BMSC were detected by Flow cytometry, the formation of alkaline phosphatase (ALP) , calcium nodules and fat droplets were observed by ALP, Alizarin Red staining and oil red O staining. At the same time, 36 SPF male rats were randomly divided into 6 groups: NC Group (Blank Control Group, injected with the same amount of saline) and PQ group (PQ model group, injected with 20% PQ solution 18 mg/kg intraperitoneally) , bMSC-A group, BMSC-B group, BMSC-C group and BMSC-D group were injected with BMSC suspension 1×10(6) cells/mice at 3 h、3 d、7 d and 14 d after PQ poisoning. After 28 days, the rats were killed, the lung organ coefficients were calculated, the hydroxyproline (HYP) content in lung tissue was calculated by alkaline hydrolysis, and the lung injury and fibrosis were observed by HE and Masson staining, serum TGF-1、TNF-α、MMP-9 and TIMP-1 were detected by Elisa. Results: High Purity BMSCs were successfully isolated and obtained. The P3 BMSC generation was positive expression of CD29、CD90、and negative expression of CD34、CD45, and had the potential of osteogenic and adipogenic differentiation. The results of HE staining and Masson staining showed that the alveolar structure in NC group was intact and homogeneous, in PQ group, the alveolar structure was severely damaged and a lot of collagen fibers and fibroblasts were deposited, and the degrees of lung injury in each BMSC intervention group were obviously less than in PQ group, in BMSC-A group and BMSC-B group, the degrees of reduction were obvious. Compared with NC group, the Lung organ coefficient, HYP content in lung tissue and TGF-β1, TIMP-1 levels in serum were significantly higher in PQ group (P<0.05) , while TNF-α and MMP-9 had no significant difference (P>0.05) . Compared with PQ group, the lung organ Coefficients, HYP, TGF-1 and TIMP-β1 in BMSC-A and BMSC-B groups were lower than those in PQ group (P<0.05) . The Lung organ coefficients, TGF-β1 and TIMP-1 in BMSC-C and BMSC-D groups were lower than those in PQ group, there was no significant difference (P>0.05) . Conclusion: Early BMSC injecting can alleviate pulmonary fibrosis induced by PQ. The mechanism may be that BMSC can reduce pulmonary fibrosis through reducing the level of TGF-β1 and regulating the balance of TIMP-1/MMP-9, threrby reducing inflammatory damage and increasing the degradation of extracellular matrix (ECM) .
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Affiliation(s)
- H Huang
- Guangzhou Hospital of Integrated Traditional and West Medicine, Guangzhou 510800, China
| | - L Q Lan
- Guangzhou Hospital of Integrated Traditional and West Medicine, Guangzhou 510800, China
| | - J Q Wu
- Department of Orthopedics, Huadu District People's Hospital of Guangzhou, Guangzhou 510800, China
| | - Y W Su
- Guangzhou Occupational Disease Prevention and Treatment Hosptial, Guangzhou 510620, China
| | - C H Xue
- BaiYun District People's Hospital of Guangzhou, Guangzhou 510500, China
| | - Y M Liu
- Guangzhou Occupational Disease Prevention and Treatment Hosptial, Guangzhou 510620, China
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24
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Zou XX, Zhang B, Liu LH, Wang HJ, Wu JQ, Yang QY, Zhang XJ, Liu ZQ. [Current status and prospects of population exposure assessment of nanomaterials consumer products]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:902-907. [PMID: 32842322 DOI: 10.3760/cma.j.cn112150-20200602-00805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
With the wide application of nanomaterials in consumer products in the market, it is necessary to understand the existence and release of nanomaterials in consumer products, as well as the current situation of exposure assessment of consumers. China has been a large industrial producer with a huge consumer market, but the supervision of consumer goods with nanomaterials is almost blank. This article summarized and classified the existing consumer products of nanomaterials in the international market, and discussed the release of key nanomaterials in consumer products and the exposure assessment methods of consumers, in order to provide a scientific basis for the establishment of a regulatory system for consumer products of nanomaterials in China in the future.
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Affiliation(s)
- X X Zou
- National Center for Occupational Safety and Health, NHC, Beijing 102308, China
| | - B Zhang
- National Center for Occupational Safety and Health, NHC, Beijing 102308, China
| | - L H Liu
- National Center for Occupational Safety and Health, NHC, Beijing 102308, China
| | - H J Wang
- National Center for Occupational Safety and Health, NHC, Beijing 102308, China
| | - J Q Wu
- National Center for Occupational Safety and Health, NHC, Beijing 102308, China
| | - Q Y Yang
- National Center for Occupational Safety and Health, NHC, Beijing 102308, China
| | - X J Zhang
- National Center for Occupational Safety and Health, NHC, Beijing 102308, China
| | - Z Q Liu
- National Center for Occupational Safety and Health, NHC, Beijing 102308, China
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25
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Lin LJ, Zhu L, Shi GC, Wu JQ, Li HX, Sun BJ, Lin JT, Xu ZJ, Sun TY, Li J, Yu SY, Liu XM. [Experts consensus for the diagnosis, treatment, and prevention of Coronavirus disease 2019 in the elderly]. Zhonghua Nei Ke Za Zhi 2020; 59:588-597. [PMID: 32521953 DOI: 10.3760/cma.j.cn112138-20200228-00151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Coronavirus disease 2019 (COVID-19) can cause great damage to the elderly patients and lead to high mortality. The clinical presentations and auxiliary examinations of the elderly patients with COVID-19 are atypical, due to the physiological ageing deterioration and basal pathological state. The treatment strategy for the elderly patients has its own characteristics and treatment protocol should be considered accordingly. To improve the diagnosis, treatment, and prevention of COVID-19 in the elderly, the Expert Committee of Geriatric Respiratory and Critical Care Medicine, China Society of Geriatrics established the "Expert consensus for the diagnosis, treatment, and prevention of Coronavirus disease 2019 in the elderly" . We focused on the clinical characteristics and key points for better treatment and prevention of COVID-19 in the elderly. (1) For diagnosis, atypical clinical presentation of COVID-19 in the elderly should be emphasized, which may be complicated by underlying disease. (2) For treatment, strategy of multiple disciplinary team (mainly the respiratory and critical care medicine) should be adopted and multiple systemic functions should be considered. (3) For prevention, health care model about integrated management of acute and chronic diseases, in and out of hospital should be applied.
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Affiliation(s)
- L J Lin
- Department of Geriatrics, Peking University First Hospital, Beijing 100034, China
| | - L Zhu
- Department of Respiratory Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - G C Shi
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - J Q Wu
- Department of Geriatrics, Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - H X Li
- Department of Respiratory Medicine, The Second Medical Center of PLA General Hospital, Beijing 100853, China
| | - B J Sun
- Department of Respiratory Medicine, The Second Medical Center of PLA General Hospital, Beijing 100853, China
| | - J T Lin
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - Z J Xu
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T Y Sun
- Department of Respiratory and Critical Medicine, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
| | - J Li
- Beijing Hospital, Beijing Institute of Geriatrics of National Health Commission, Beijing 100730, China
| | - S Y Yu
- Department of Respiratory Medicine, The Second Medical Center of PLA General Hospital, Beijing 100853, China
| | - X M Liu
- Department of Geriatrics, Peking University First Hospital, Beijing 100034, China
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26
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Xu YL, Wu SP, Li YG, Sun FX, Wang QJ, Zhao Q, Yu J, Tian FL, Wu JQ, Zhu RL, Peng J. A porcine alveolar macrophage cell line stably expressing CD163 demonstrates virus replication and cytokine secretion characteristics similar to primary alveolar macrophages following PRRSV infection. Vet Microbiol 2020; 244:108690. [PMID: 32402349 DOI: 10.1016/j.vetmic.2020.108690] [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: 12/11/2019] [Revised: 04/04/2020] [Accepted: 04/10/2020] [Indexed: 11/30/2022]
Abstract
The in vitro investigation of cytokine secretion induced by porcine reproductive and respiratory syndrome virus (PRRSV) requires porcine alveolar macrophages (PAMs) and their interaction with immunocytes. However, immortalized monoclonal PAMs (mPAMs) are non-permissive for PRRSV infection. The porcine CD163 receptor isolated from primary PAMs (pPAMs) confers susceptibility to PRRSV infection; thus, this approach could be used to establish a novel cell line to facilitate the exploration of PRRSV infection kinetics. Here, we amplified the coding region of the CD163 gene from pPAMs and integrated it into an mPAM line using a lentivirus expression system. After verification, the monoclonal PAM cell line stably expressing CD163 (mPAM-CD163-GFP) was infected with either the highly pathogenic PRRSV strain JXA1 or the classical PRRSV strain SD1, which produced high infectious titers of progeny virus reaching > 109 copies/mL or a 50 % tissue culture infective dose of 105.5 over at least 100 cell generations. We also investigated cytokine and Toll-like receptor expression in infected mPAM-CD163-GFP cells and pPAMs. The mPAM-CD163-GFP cell line showed similar patterns of viral replication and cytokine secretion compared with pPAMs, so it may be extremely useful for replacing primary cells for in vitro investigations of the mechanisms of cytokine secretion and interactions between PRRSV-infected PAMs and immunocytes.
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Affiliation(s)
- Yu-Lin Xu
- College of Veterinary Medicine, Shandong Agricultural University, and Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Taian 271000, China; East China Research Center of Animal Epidemic Pathogen Biology, Ministry of Agriculture and Rural Affairs of China, Taian 271000, China
| | - Shao-Peng Wu
- College of Veterinary Medicine, Shandong Agricultural University, and Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Taian 271000, China; East China Research Center of Animal Epidemic Pathogen Biology, Ministry of Agriculture and Rural Affairs of China, Taian 271000, China
| | - Yun-Gang Li
- Shandong Centers for Animal Disease Control and Prevention, Jinan 250022, China
| | - Feng-Xia Sun
- College of Resources and Environment, Shandong Agricultural University, Taian 271000, China
| | - Qiu-Ju Wang
- College of Veterinary Medicine, Shandong Agricultural University, and Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Taian 271000, China; East China Research Center of Animal Epidemic Pathogen Biology, Ministry of Agriculture and Rural Affairs of China, Taian 271000, China
| | - Qing Zhao
- College of Veterinary Medicine, Shandong Agricultural University, and Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Taian 271000, China; East China Research Center of Animal Epidemic Pathogen Biology, Ministry of Agriculture and Rural Affairs of China, Taian 271000, China
| | - Jiang Yu
- Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 251000, China; Shandong Key Laboratory of Animal Disease Control and Breeding, Jinan 250100, China
| | - Fu-Lin Tian
- Shandong Centers for Animal Disease Control and Prevention, Jinan 250022, China
| | - Jia-Qiang Wu
- Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 251000, China; Shandong Key Laboratory of Animal Disease Control and Breeding, Jinan 250100, China.
| | - Rui-Liang Zhu
- College of Veterinary Medicine, Shandong Agricultural University, and Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Taian 271000, China; East China Research Center of Animal Epidemic Pathogen Biology, Ministry of Agriculture and Rural Affairs of China, Taian 271000, China.
| | - Jun Peng
- College of Veterinary Medicine, Shandong Agricultural University, and Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Taian 271000, China; East China Research Center of Animal Epidemic Pathogen Biology, Ministry of Agriculture and Rural Affairs of China, Taian 271000, China.
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27
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Srivastava A, Brooks ES, Dobre M, Elliot WJ, Wu JQ, Flanagan DC, Gravelle JA, Link TE. Modeling forest management effects on water and sediment yield from nested, paired watersheds in the interior Pacific Northwest, USA using WEPP. Sci Total Environ 2020; 701:134877. [PMID: 31731205 DOI: 10.1016/j.scitotenv.2019.134877] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 10/04/2019] [Accepted: 10/06/2019] [Indexed: 06/10/2023]
Abstract
The Water Erosion Prediction Project (WEPP) model was applied to seven paired, nested watersheds within the Mica Creek Experimental Watershed located in northern Idaho, USA. The goal was to evaluate the ability of WEPP to simulate the direct and cumulative effects of clear-cutting and partial-cutting (50% canopy removal) on water and sediment yield. WEPP was modified to better represent changes in the Leaf Area Index during post-harvest forest vegetative recovery. Good agreement between simulated and observed streamflow was achieved with minimal to no calibration over a 16-year (1992-2007) period. For the seven watersheds and the entire study period, the overall Nash-Sutcliffe Efficiency (NSE), Kling-Gupta efficiency (KGE), and deviation of runoff volume (DV) between observed and simulated daily streamflow ranged 0.58-0.71, 0.67-0.81, and -4% to 9%, respectively. Good agreement between predicted and observed suspended sediment yield was achieved through the calibration of a single channel critical shear stress parameter. For sediment yield, NSE, KGE, and DV ranged 0.62-0.97, 0.43-0.97, and -2% to 2%, respectively, for the calibration period, and 0.61-0.93, 0.42-0.95, and -24% to 13%, respectively, for the period of model performance assessment. Regression analysis of observed- and WEPP-simulated increase in water and sediment yield following clear-cut treatment was similar; however, the WEPP-simulated increase was lower compared to observations particularly from the partial-cut watershed. The variability in the critical shear parameter for different stream channels in the study watersheds was directly related to the observed mean particle size on the stream bed and suggests that applications of the WEPP model in ungauged basins could potentially set the critical shear parameter based on particle size. Overall, the simulated results demonstrate the potential of WEPP as a modeling tool for forestland watershed management, particularly for estimating the effects of forest harvest on hydrograph fluctuations and consequently, stream sediment transport.
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Affiliation(s)
- A Srivastava
- Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, IN, USA.
| | - E S Brooks
- Department of Soil and Water Systems, University of Idaho, Moscow, ID, USA.
| | - M Dobre
- Department of Soil and Water Systems, University of Idaho, Moscow, ID, USA.
| | - W J Elliot
- USDA-Forest Service, Rocky Mountain Research Station, Moscow, ID, USA.
| | - J Q Wu
- Department of Biological Systems Engineering, Puyallup Research and Extension Center, Washington State University, Puyallup, WA, USA.
| | - D C Flanagan
- USDA-Agricultural Research Service, National Soil Erosion Research Laboratory, West Lafayette, IN, USA.
| | - J A Gravelle
- Environmental Resource Consultant, Pine Orchard Inc., Moscow, ID, USA.
| | - T E Link
- College of Natural Resources, University of Idaho, Moscow, ID, USA.
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28
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Lin EE, Wu JQ, Schäfers F, Su XX, Wang KF, Li JL, Chen Y, Zhao X, Ti H, Li Q, Ou TM, Glorius F, Wang H. Regio- and stereoselective synthesis of tetra- and triarylethenes by N-methylimidodiacetyl boron-directed palladium-catalysed three-component coupling. Commun Chem 2019. [DOI: 10.1038/s42004-019-0137-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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29
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Zhou CJ, Gao H, Huang SL, Zhang SS, Wu JQ, Li B, Jiang X, Wang H. Synthesis of Benzofused N-Heterocycles via Rh(III)-Catalyzed Direct Benzannulation with 1,3-Dienes. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03595] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Chu-Jun Zhou
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Hui Gao
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China
| | - Shi-Liang Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Shang-Shi Zhang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Jia-Qiang Wu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Bai Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Xianxing Jiang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Honggen Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
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30
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Xu SF, Wu JQ, Yu CN, Li YY, Zhao R, Zhou Y, Li YR, Jin MH, Zhang JG. [Analysis on reproductive health service, demographics and characteristics of internal migrant population in three municipalities of China]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 39:1303-1308. [PMID: 30453427 DOI: 10.3760/cma.j.issn.0254-6450.2018.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the utilization of reproductive health services and relating factors among internal migrant population in Beijing, Shanghai and Chongqing. Methods: A multi-stage cluster sampling method was adopted in this cross-sectional study, conducted in Beijing, Shanghai and Chongqing from August 2014 to August 2015. Standard methods on statistics and nonlinear canonical correlation were applied. Results: Out of the 6 545 internal migrant persons, 41.76% ever used the reproductive health services in the past year. Results from the nonlinear canonical correlation analysis revealed that the utilization of reproductive health services was correlated with the demographic features (=0.28, P<0.000 1) and characteristics of the population mobility (=0.21, P<0.000 1), respectively. For the above said demographic features, canonical variable L(1) which represented the demographic features was mainly determined by area, occupation and education attainment. Canonical variable M(1) that reflected the utilization of reproductive health services, was mainly determined by factors as free contraceptives, education on contraception/reproductive health, and pregnancy diagnosis/antenatal care. As for the characteristics of the population mobility, canonical variable U(1), which represented population mobility characteristics, was mainly determined by factors as purpose of migration, current pattern of residence and the length of annual stay in the area. Again, the canonical variable V(1), reflecting the use of reproductive health services was mainly determined by factors as free contraceptives, check-up on reproductive tract infection, education on contraception/reproductive health, and pregnancy diagnosis/antenatal care. Conclusions: The utilization of reproductive health services was low among the internal migrant population under study. Responsible departments for health and family planning in those cities should make internal migrants attach importance to reproductive health.
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Affiliation(s)
- S F Xu
- Key Laboratory of Reproduction Regulation of NPFPC, Shanghai Institute of Planned Parenthood Research, IRD, Fudan University, Shanghai 200032, China; Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - J Q Wu
- Key Laboratory of Reproduction Regulation of NPFPC, Shanghai Institute of Planned Parenthood Research, IRD, Fudan University, Shanghai 200032, China
| | - C N Yu
- Longhua District Center for Chronic Disease Control/Mental Health Center, Shenzhen 518110, China
| | - Y Y Li
- Key Laboratory of Reproduction Regulation of NPFPC, Shanghai Institute of Planned Parenthood Research, IRD, Fudan University, Shanghai 200032, China
| | - R Zhao
- Key Laboratory of Reproduction Regulation of NPFPC, Shanghai Institute of Planned Parenthood Research, IRD, Fudan University, Shanghai 200032, China
| | - Y Zhou
- Key Laboratory of Reproduction Regulation of NPFPC, Shanghai Institute of Planned Parenthood Research, IRD, Fudan University, Shanghai 200032, China
| | - Y R Li
- Key Laboratory of Reproduction Regulation of NPFPC, Shanghai Institute of Planned Parenthood Research, IRD, Fudan University, Shanghai 200032, China
| | - M H Jin
- Key Laboratory of Reproduction Regulation of NPFPC, Shanghai Institute of Planned Parenthood Research, IRD, Fudan University, Shanghai 200032, China
| | - J G Zhang
- Key Laboratory of Reproduction Regulation of NPFPC, Shanghai Institute of Planned Parenthood Research, IRD, Fudan University, Shanghai 200032, China
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Song X, Wu JQ, Yu XF, Yang XS, Yang Y. Trichostatin A inhibits proliferation of triple negative breast cancer cells by inducing cell cycle arrest and apoptosis. Neoplasma 2018; 65:898-906. [PMID: 30334455 DOI: 10.4149/neo_2018_181212n476] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 04/11/2018] [Indexed: 11/08/2022]
Abstract
Triple negative breast cancer (TNBC) is the most aggressive subtype of breast cancer with poor outcome. Because of lacking therapeutic targets, chemotherapy is the main treatment option for patients with TNBC. Overexpression of HDACs correlates with tumorigenesis, highlighting the potential of HDACs as therapeutic targets for TNBC. Here we demonstrate that trichostatin A (TSA, a HDAC inhibitor) selectively inhibits the proliferation of TNBC cell lines HCC1806 and HCC38 rather than a normal breast cell line MCF10A. The inhibition of TNBC by TSA is via its roles in inducing cell cycle arrest and apoptosis. TSA treatment leads to decreased expression of CYCLIN D1, CDK4, CDK6 and BCL-XL, but increased P21 expression. Moreover, combination of TSA with doxorubicin has synergistic effects on inhibiting proliferation of HCC1806 and HCC38 cells. Our studies identified a promising epigenetic-based therapeutic strategy that may be implemented in the therapy of fatal human breast cancer.
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Affiliation(s)
- X Song
- Department of Microbiology and Immunology, School of Life Sciences, Tianjin University, Tianjin, China
| | - J Q Wu
- Department of Microbiology and Immunology, School of Life Sciences, Tianjin University, Tianjin, China
| | - X F Yu
- Department of Microbiology and Immunology, School of Life Sciences, Tianjin University, Tianjin, China.,Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - X S Yang
- Department of Radiation Prevention, School of Public Health, Jilin University, Changchun, China
| | - Y Yang
- Department of Microbiology and Immunology, School of Life Sciences, Tianjin University, Tianjin, China
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Zeng JQ, Wu JQ, Li MH, Wang PJ. [ In vitro early detection of amyloid plaques in Alzheimer's disease by Pittsburgh compound B-modified magnetic nanoparticles]. Zhonghua Yi Xue Za Zhi 2018; 97:3258-3262. [PMID: 29141366 DOI: 10.3760/cma.j.issn.0376-2491.2017.41.013] [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 construct magnetic nanoparticles targeting β-amyloid (Aβ) plaques, the pathological biomarker of Alzheimer's disease (AD) and to study their binding capability in vitro. Methods: Superparamagnetic nanoparticles Mn(0.6)Zn(0.4)Fe(2)O(4) (MZF) were coated with amphiphilic star-block copolymeric micelles and modified with Aβ-specific probe Pittsburgh compound B (PiB) to construct a novel magnetic nanoparticle MZF-PiB, which specifically targeted amyloid plaques. Transmission electron microscope was used to study the morphological features of MZF-PiB. Superparamagnetism of MZF-PiB was assessed by its r(2) relaxation rate by using 3.0 T MRI scanner. Cytotoxic test was applied to determine biosafety of MZF-PiB nanoparticles in differentiated human neuroblastoma cells (SH-SY5Y) and Madin-Darby canine kidney (MDCK). In vitro binding tests were conducted via immunohistochemistry on 6-month old AD mice brain sections. Differences of cell viability between groups were compared with one-way analysis of variance. Results: MZF-PiB nanoparticles were successfully constructed. Transmission electron microscope images showed that the nanoparticles were about 100 nm in size. The r(2) relaxation rate was 163.11 mMS(-1). No differences were found in cell viability of SH-SY5Y and MDCK incubated with MZF-PiB suspension for 24 h or 48 h when compared with those of untreated cells (F=2.336, 2.539, 0.293, 1.493, all P>0.05). In vitro binding tests indicated that the MZF-PiB were specifically bound to amyloid plaques. The smallest size of detected plaques was 27 μm. Conclusion: PiB-modified nanoparticles targeting Aβ are biologically safe and highly superparamagnetic, possessing the capability to detect amyloid plaques early in vitro and the potential for early diagnosis of AD.
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Affiliation(s)
- J Q Zeng
- Department of Radiology, Tongji Hospital of Tongji University, Shanghai 200065, China
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Huan CC, Wang HX, Sheng XX, Wang R, Wang X, Liao Y, Liu QF, Tong GZ, Ding C, Fan HJ, Wu JQ, Mao X. Porcine epidemic diarrhea virus nucleoprotein contributes to HMGB1 transcription and release by interacting with C/EBP-β. Oncotarget 2018; 7:75064-75080. [PMID: 27634894 PMCID: PMC5342723 DOI: 10.18632/oncotarget.11991] [Citation(s) in RCA: 10] [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: 05/09/2016] [Accepted: 09/02/2016] [Indexed: 01/09/2023] Open
Abstract
Porcine epidemic diarrhea is a devastating swine enteric disease, which is caused by porcine epidemic diarrhea virus (PEDV) infection. Our studies demonstrated that PEDV infection resulted in the up-regulation of proinflammatory cytokines. Meanwhile, PEDV infection and overexpression of viral nucleoprotein resulted in the acetylation and release of high mobility group box 1 proteins in vitro, an important proinflammatory response mediator, which contributes to the pathogenesis of various inflammatory diseases. Our studies also showed that SIRT1, histone acetyltransferase, and NF-κB regulated the acetylation and release of HMGB1. Chromatin immunoprecipitation, dual-luciferase reporter gene assay, and co-immunoprecipitation experiments illustrated that PEDV-N could induce HMGB1 transcription by interacting with C/EBP-β, which could bind to C/EBP motif in HMGB1 promotor region. Collectively, our data indicate PEDV-N contributes to HMGB1 transcription and the subsequent release/acetylation of HMGB1 during PEDV infection.
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Affiliation(s)
- Chang-Chao Huan
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, China, 210095
| | - Hua-Xia Wang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, China, 210095
| | - Xiang-Xiang Sheng
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, China, 210095
| | - Rui Wang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, China, 210095
| | - Xin Wang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, China, 210095
| | - Ying Liao
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China, 200241
| | - Qin-Fang Liu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China, 200241
| | - Guang-Zhi Tong
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China, 200241
| | - Chan Ding
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China, 200241
| | - Hong-Jie Fan
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, China, 210095
| | - Jia-Qiang Wu
- Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Shandong Province, China, 250100
| | - Xiang Mao
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, China, 210095.,Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China, 200241
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Xu X, Xu L, Jiang JH, Wu JQ, Li XT, Jing WD. [Accuracy analysis of alveolar dehiscence and fenestration of maxillary anterior teeth of Angle class III by cone-beam CT]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:104-109. [PMID: 29483731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To evaluate the accuracy and reliability of detecting alveolar bone dehiscence and fenestration of maxillary anterior teeth of Angle class III by cone-beam computed tomography (CBCT). METHODS Eighteen Angle class III patients with 108 maxillary anterior teeth were included (3 males and 15 females) who accepted modified corticotomy in orthodontic therapy. The mean age was 23.6 years (18-30 years). The clinical detection of dehiscence and fenestration was done when modified corticotomy was performed by the same periodontist. The CBCT examination was conducted pre-operation and the detection of dehiscence and fenestration by CBCT was done by two periodontists. The data in modified corticotomy were used as the golden standard to calculate the parameters, such as sensitivity, specificity, positive and negative predictive values, Youden index (YI), positive and negative likelihood ratio. Kappa statistic was used to analyze the agreement between the clinical detection and the CBCT detection. RESULTS The incidence of dehiscence and fenestration was about 10.19% and 13.89% respectively, which mainly occurred on lateral incisors and canines. The median values of length and width of dehiscence were about 5 mm and 4 mm, and the median values of length and width of fenestration were 3 mm and 2 mm, respectively. Most fenestrations were detected on the middle third to the apical third of the root. For dehiscence, the agreement between clinical detection and CBCT detection was statistically significant (P<0.05). For fenestration, the agreement between clinical detection and CBCT detection was statistically significant (P<0.05). The values of sensitivity and specificity for detecting dehiscence were more than 0.7. The values of positive and negative predictive values for detecting dehiscence were 0.44 and 0.97. The values of sensitivity and specificity for detecting fenestration were 0.93 and 0.52. The values of positive and negative predictive values for detecting fenestration were 0.24 and 0.98. CONCLUSION For dehiscence, the agreement between clinical detection and CBCT detection was good. For fenestration, the agreement between clinical detection and CBCT detection was general. Detection of dehiscence and fenestration of maxillary anterior teeth of Angle class III by CBCT had limited diagnostic value in clinical practice with overestimation of dehiscence and fenestration incidence.
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Affiliation(s)
- X Xu
- Department of Periodontology, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - L Xu
- Department of Periodontology, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - J H Jiang
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - J Q Wu
- First Clinical Division, Peking University School and Hospital of Stomatology, Beijing 100034, China
| | - X T Li
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - W D Jing
- Department of Periodontology, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Wang GS, Du Y, Wu JQ, Tian FL, Yu XJ, Wang JB. Vaccine resistant pseudorabies virus causes mink infection in China. BMC Vet Res 2018; 14:20. [PMID: 29351775 PMCID: PMC5775606 DOI: 10.1186/s12917-018-1334-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 01/03/2018] [Indexed: 01/31/2023] Open
Abstract
Background Pseudorabies, a highly contagious infectious disease of swine is caused by pseudorabies virus (PRV). PRV can cause fatal infection in other animal species. Results We report a deadly outbreak of pseudorabies that killed 87.2% (3522/4028) minks in a farm in 2014 in Shandong Province, China. PRV was isolated by using Vero cell culture and detected in mink samples by PCR from minks died during the outbreak. Epidemiological analysis indicated that 5.8% of minks (33/566) were PCR positive to PRV in Shandong Province. Phylogenetic analysis indicated that the PRV strains isolated from minks in this study were in the same clade with the Chinese porcine PRV isolates, which are resistant to the PRV vaccine. Conclusions We demonstrated that pseudorabies virus caused an outbreak of minks in a farm in Shandong Province of China and the virus has a very high infection rate in minks in Shandong Province, which is a challenge for the fur industry in China.
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Affiliation(s)
- Gui-Sheng Wang
- Shandong Provincial Center for Animal Disease Control and Prevention, Jinan, China.,School of Life Sciences, Shandong University, 27 Shanda Road South, Jinan, 250100, China
| | - Yijun Du
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Jia-Qiang Wu
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Fu-Lin Tian
- Shandong Provincial Center for Animal Disease Control and Prevention, Jinan, China
| | - Xue-Jie Yu
- School of Health Science, Wuhan University, Wuhan, China
| | - Jin-Bao Wang
- School of Life Sciences, Shandong University, 27 Shanda Road South, Jinan, 250100, China.
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Zhang SS, Xia J, Wu JQ, Liu XG, Zhou CJ, Lin E, Li Q, Huang SL, Wang H. Three-Component Catalytic Carboxygenation of Activated Alkenes Enabled by Bimetallic Rh(III)/Cu(II) Catalysis. Org Lett 2017; 19:5868-5871. [DOI: 10.1021/acs.orglett.7b02846] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shang-Shi Zhang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Jie Xia
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Jia-Qiang Wu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Xu-Ge Liu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Chu-Jun Zhou
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - E. Lin
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Qingjiang Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Shi-Liang Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Honggen Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
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Liu LX, Wu JQ, Wu QY, Zhang Q, Yu B, Ge SM, Huo Y, Wang XT, Chao YG, Hu ZJ. [The effects of different tidal volume ventilation on right ventricular function in critical respiratory failure patients]. Zhonghua Nei Ke Za Zhi 2017; 56:419-426. [PMID: 28592041 DOI: 10.3760/cma.j.issn.0578-1426.2017.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe and explore the effects of different tidal volume (VT) ventilation on right ventricular (RV) function in patients with critical respiratory failure. Methods: Consecutive respiratory failure patients who were treated with invasive ventilator over 24 h in the Department of Critical Care Medicine at the Fourth Hospital of Hebei Medical University from June to December in 2015 were enrolled in this study.Clinical data including patients' vital signs, ventilator parameters and RV echocardiography were collected within 6 h (D0), day1(D1), day2 (D2) and day3 (D3) after ventilation started.According to the VT, patients with acute respiratory distress syndrome (ARDS) were assigned to low VT group [S6, ≤6 ml/kg predicted body weight (PBW)] and high VT group (L6, >6 ml/kg PBW), while non-ARDS patients were also assigned to low VT group (S8, ≤8 ml/kg PBW) and high VT group (L8, >8 ml/kg PBW). Results: A total of 84 patients were enrolled in this study.44.2% ARDS patients and 58.5% non-ARDS patients were in low VT groups.After ventilation, tricuspid annulus plane systolic excursion(TAPSE)decreased progressively in S6 [from 18.30(16.70, 20.70) mm to 17.55(15.70, 19.50) mm, P=0.001], L6 [from 19.50(17.00, 21.00) mm to 16.30(15.00, 18.00) mm P=0.001], S8[from 18.00(16.00, 21.00) mm to 16.50(15.50, 18.00) mm, P=0.001] and L8 [from 19.00(17.50, 21.50) mm to 16.35(15.15, 17.00) mm, P=0.001] groups.However, TAPSE decreased less in small VT groups (S6 and S8) than those of in large VT groups (S8 and L8) without significant differences.There were not statistical differences between different VT groups in terms of ventilation days, including right ventricle area/left ventricle area (RV(area)/LV(area)), TAPSE, peak mitral flow velocity of the early rapid filling wave (E), peak mitral flow velocity of the late rapid filling wave (A), early diastolic velocity of the tricuspid annulus (e'), pulmonary artery systolic pressure, inferior vena cava diameter (all P>0.05). Compared to L6 group, low VT (S6 group) resulted in decreased mortality at 28 days [1/19 vs 37.5%(9/24), P=0.014]. There were not statistical differences between different VT groups in terms of ventilation days, length of intensive care unit stay, length of hospital stay (all P>0.05). Logistic regression analysis showed that VT could be the independent factor of TAPSE (OR=1.104, 95%CI 0.100-1.003, P=0.049). Conclusions: Positive pressure mechanical ventilation resulted in RV systolic dysfunction .Lower VT may have the protective effect on RV function. Trial registration: Chinese Clinical Trial Registry, ChiCTR-POC-15007563.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Z J Hu
- Department of Critical Care Medicine, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
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Chen SY, Han XL, Wu JQ, Li Q, Chen Y, Wang H. Manganese(I)-Catalyzed Regio- and Stereoselective 1,2-Diheteroarylation of Allenes: Combination of C-H Activation and Smiles Rearrangement. Angew Chem Int Ed Engl 2017. [PMID: 28631868 DOI: 10.1002/anie.201704952] [Citation(s) in RCA: 119] [Impact Index Per Article: 17.0] [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: 11/10/2022]
Abstract
Heteroarenes are important structural motif in functional molecules. A MnI -catalyzed 1,2-diheteroarylation of allenes via a C-H activation/Smiles rearrangement cascade is presented. The reaction occurred under additive-free or even solvent-free conditions, which allowed the creation of two C-C and one C-N bonds in a single operation. A series of structurally diverse bicyclic or tricyclic compounds bearing an exocyclic double bond were constructed in good to excellent efficiency. The decarboxylative ring-opening of the products led to the facile synthesis of vicinal biheteroaryls. Synthetic applications were demonstrated and preliminary mechanistic studies were conducted.
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Affiliation(s)
- Shi-Yong Chen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Xiang-Lei Han
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Jia-Qiang Wu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Qingjiang Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China.,State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, 100191, China
| | - Yunyun Chen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Honggen Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
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Dai J, Cai HR, Li Y, Meng FQ, Wu JQ. [Follicular bronchiolitis: report of 3 cases and literature review]. Zhonghua Jie He He Hu Xi Za Zhi 2017; 40:457-462. [PMID: 28592030 DOI: 10.3760/cma.j.issn.1001-0939.2017.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To improve understanding of the characteristics of follicular bronchiolitis(FB). Methods: The clinical data of 3 patients with FB confirmed by thoracoscopic lung biopsy were retrospectively analyzed. A literature search was performed with "follicular bronchiolitis" as the key word in China Knowledge Resource Integrated Database, Wanfang and PubMed, Ovid Database. The time interval was from January 1947 to December 2015. Related articles of FB were retrieved and the clinical, radiographic characteristics and prognosis were analyzed. Results: Among the 3 patients, 1 was male and 2 were female, aging 32-55 years. Two patients were asymptomatic, and 1 patient presented with fever, cough and dyspnea. Two patients showed normal pulmonary ventilatory function with decreased diffusive function, and 1 patient showed normal pulmonary function. The predominant HRCT findings were bilateral multiple small nodules and cystic opacities, patchy ground-glass opacities, reticular opacities and traction bronchiectasis. The pathological examination by thoracoscopic biopsy revealed bronchiolar and peribronchiolar lymphoid follicles. All patients were treated with corticosteroids, with 2 patients receiving immunosuppressants. Follow-up HRCT after 1-2 months showed no improvement, and further follow-up HRCT after 2-4 years revealed no change in 2 patients while the other patient had increased pulmonary nodules and cystic opacities. Seventeen articles concerning FB with complete records were included in the literature review. A total of 64 patients were reported in these articles. The typical images were bilateral multiple small nodules and ground-glass opacities, reticular opacities, and cystic opacities. The majority of patients improved after treatment of corticosteroids and (or) immunosuppressants. But our 3 cases showed no improvement. Conclusions: FB is a rare small airway disease which has non-specific clinical manifestations and pulmonary function. The most common imaging findings are bilateral multiple small nodules, with cystic opacities, ground-glass opacities, and reticular opacities. Surgical thoracoscopic biopsy can get ideal specimen which is useful for diagnosis. The curative effects of corticosteroids or immunosuppressants on FB need to be further clinically investigated.
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Affiliation(s)
- J Dai
- Department of Geriatrics, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
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Chen SY, Li Q, Liu XG, Wu JQ, Zhang SS, Wang H. Polycyclization Enabled by Relay Catalysis: One-Pot Manganese-Catalyzed C-H Allylation and Silver-Catalyzed Povarov Reaction. ChemSusChem 2017; 10:2360-2364. [PMID: 28471522 DOI: 10.1002/cssc.201700452] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Indexed: 06/07/2023]
Abstract
In this study, a MnI /AgI -based relay catalysis process is described for the one-pot synthesis of polycyclic products by a formal [3+2] and [4+2] cycloaddition reaction cascade. A manganese(I) complex catalyzed the first example of directed C-H allylation with allenes, setting the stage for an in situ Povarov cyclization catalyzed by silver(I). The reaction proceeds with high bond-forming efficiency (three C-C bonds), broad substrate scope, high regio- and stereoselectivity, and 100 % atom economy.
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Affiliation(s)
- Shi-Yong Chen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Qingjiang Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, P. R. China
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, 100191, P. R. China
| | - Xu-Ge Liu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Jia-Qiang Wu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Shang-Shi Zhang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Honggen Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, P. R. China
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Wu JQ, Hu K, Stavitsky Gilbert K, Cronin-Golomb A. 1142 CIRCADIAN REST-ACTIVITY RHYTHMS AND COGNITIVE FUNCTION IN PARKINSON’S DISEASE. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.1141] [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: 11/14/2022] Open
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Wu JQ, Zhang SS, Gao H, Qi Z, Zhou CJ, Ji WW, Liu Y, Chen Y, Li Q, Li X, Wang H. Experimental and Theoretical Studies on Rhodium-Catalyzed Coupling of Benzamides with 2,2-Difluorovinyl Tosylate: Diverse Synthesis of Fluorinated Heterocycles. J Am Chem Soc 2017; 139:3537-3545. [DOI: 10.1021/jacs.7b00118] [Citation(s) in RCA: 202] [Impact Index Per Article: 28.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jia-Qiang Wu
- School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Shang-Shi Zhang
- School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Hui Gao
- School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Zisong Qi
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Chu-Jun Zhou
- School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Wei-Wei Ji
- School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Yao Liu
- School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Yunyun Chen
- School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Qingjiang Li
- School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Xingwei Li
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Honggen Wang
- School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
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Xia CL, Wang N, Guo QL, Liu ZQ, Wu JQ, Huang SL, Ou TM, Tan JH, Wang HG, Li D, Huang ZS. Design, synthesis and evaluation of 2-arylethenyl-N-methylquinolinium derivatives as effective multifunctional agents for Alzheimer's disease treatment. Eur J Med Chem 2017; 130:139-153. [PMID: 28242549 DOI: 10.1016/j.ejmech.2017.02.042] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Revised: 02/14/2017] [Accepted: 02/16/2017] [Indexed: 10/20/2022]
Abstract
A series of 2-arylethenyl-N-methylquinolinium derivatives were designed and synthesized based on our previous research of 2-arylethenylquinoline analogues as multifunctional agents for the treatment of Alzheimer's disease (AD) (Eur. J. Med. Chem. 2015, 89, 349-361). The results of in vitro biological activity evaluation, including β-amyloid (Aβ) aggregation inhibition, cholinesterase inhibition, and antioxidant activity, showed that introduction of N-methyl in quinoline ring significantly improved the anti-AD potential of compounds. The optimal compound, compound a12, dramatically attenuated the cell death of glutamate-induced HT22 cells by preventing the generation of ROS and increasing the level of GSH. Most importantly, intragastric administration of a12•HAc was well tolerated at doses up to 2000 mg/kg and could traverse blood-brain barrier.
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Affiliation(s)
- Chun-Li Xia
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Ning Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Qian-Liang Guo
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Zhen-Quan Liu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Jia-Qiang Wu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Shi-Liang Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Tian-Miao Ou
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Jia-Heng Tan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Hong-Gen Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Ding Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Zhi-Shu Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China.
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Lao YX, Zhang SS, Liu XG, Jiang CY, Wu JQ, Li Q, Huang ZS, Wang H. High-Valent Pentamethylcyclopentadienylcobalt(III) or -iridium(III)-Catalyzed CH Annulation with Alkynes: Synthesis of Heterocyclic Quaternary Ammonium Salts. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600194] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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45
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Wang R, Wang X, Ni B, Huan CC, Wu JQ, Wen LB, Liao Y, Tong GZ, Ding C, Fan HJ, Mao X. Syndecan-4, a PRRSV attachment factor, mediates PRRSV entry through its interaction with EGFR. Biochem Biophys Res Commun 2016; 475:230-7. [PMID: 27208778 DOI: 10.1016/j.bbrc.2016.05.084] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [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: 05/02/2016] [Accepted: 05/16/2016] [Indexed: 10/21/2022]
Abstract
The causative agent of porcine reproductive and respiratory syndrome is the PRRS virus (PRRSV), an enveloped, single-stranded and positive-sense RNA virus. The host factors and mechanisms that are involved in PRRSV entry are still largely unknown. In our present studies, we found that syndecan-4, one of the heparan sulfate proteoglycans, plays a critical role in PRRSV entry, especially in PRRSV attachment. Moreover, EGFR interacts with syndecan-4 in MACR-145 cells and disruption of their interaction impaired PRRSV entry. Furthermore, EGFR inhibitor AG1478 or syndecan-4 derived peptide SSTN87-131 inhibited syndecan-4 endocytosis induced by PRRSV entry. Altogether, syndecan-4, a PRRSV attachment factor, mediated PRRSV entry by interacting with EGFR.
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Affiliation(s)
- Rui Wang
- College of Veterinary Medicine, Nanjing Agricultural University, China.
| | - Xin Wang
- College of Veterinary Medicine, Nanjing Agricultural University, China
| | - Bo Ni
- College of Veterinary Medicine, Nanjing Agricultural University, China
| | - Chang-Chao Huan
- College of Veterinary Medicine, Nanjing Agricultural University, China
| | - Jia-Qiang Wu
- Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, China
| | - Li-Bin Wen
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Science, China
| | - Ying Liao
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, China
| | - Guang-Zhi Tong
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, China
| | - Chan Ding
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, China
| | - Hong-Jie Fan
- College of Veterinary Medicine, Nanjing Agricultural University, China
| | - Xiang Mao
- College of Veterinary Medicine, Nanjing Agricultural University, China; Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, China.
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Wang XX, Wang QQ, Wu JQ, Jiang M, Chen L, Zhang CF, Xiang LH. Increased expression of CXCR3 and its ligands in patients with vitiligo and CXCL10 as a potential clinical marker for vitiligo. Br J Dermatol 2016; 174:1318-26. [PMID: 26801009 DOI: 10.1111/bjd.14416] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/19/2016] [Indexed: 01/25/2023]
Abstract
BACKGROUND Vitiligo is a skin disorder characterized by loss of melanocytes from the epidermis. A recent study reported that CXCL10 is critical for the progression and maintenance of depigmentation in a mouse model of vitiligo, but there is very limited clinical data regarding this issue and little is known about the dynamic changes or correlations with disease severity of these chemokines throughout the disease course. OBJECTIVES To present clinical data that supports and identifies the pathway of CXCR3 and its ligands in T-lymphocytic cell recruitment in vitiligo. METHODS Cytometric bead array, flow cytometry, quantitative real-time polymerase chain reaction and immunohistology were used to examine their systemic and local expression in 80 patients with vitiligo and 40 controls. RESULTS We showed that serum CXCL9 and CXCL10 were significantly elevated in patients with vitiligo and were higher in patients in progressive stages than in stable stages. The relative expression of CXCR3 mRNA in peripheral blood mononuclear cells was higher in vitiligo. There were higher percentages of both circulating CXCR3(+) CD4(+) and CXCR3(+) CD8(+) T cells in patients with progressive vitiligo compared with controls, while only the expression of CXCR3(+) CD8(+) T cells increased in patients with stable vitiligo. Histological findings also demonstrated an abundance of CXCR3(+) cells within vitiligo lesions. Furthermore, serum CXCL10 levels were associated with Vitiligo Area Scoring Index scores of patients with progressive vitiligo and were reduced after successful treatment. CONCLUSIONS The CXCL10/CXCR3 axis mediates T-cell recruitment into the skin in progressive vitiligo. Blocking this chemotactic mechanism may present a new form of therapy. Serum CXCL10 may be a novel biomarker in monitoring disease activity and guiding treatment of progressive vitiligo.
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Affiliation(s)
- X X Wang
- Department of Dermatology, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, PR China
| | - Q Q Wang
- Department of Dermatology, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, PR China
| | - J Q Wu
- Department of Dermatology, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, PR China
| | - M Jiang
- Department of Dermatology, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, PR China
| | - L Chen
- Department of Dermatology, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, PR China
| | - C F Zhang
- Department of Dermatology, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, PR China
| | - L H Xiang
- Department of Dermatology, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, PR China
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47
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Fang Z, Xu Q, Wu JQ, Lu SJ, Wang YY, Fang H. A recombinant plasmid of composite cysteine proteinase inhibitor/glyceraldehyde-3-phosphate dehydrogenase gene of periodic Brugia malayi functions on DNA immunity in the host. Indian J Med Microbiol 2016; 34:146-52. [PMID: 27080764 DOI: 10.4103/0255-0857.180279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVES Both cysteine proteinase inhibitors (CPIs) and glyceraldehyde-3-phosphate dehydrogenase (GAPDH) play important roles in the pathogenesis of parasites and their relationship with the hosts. We constructed a new eukaryotic recombinant expression plasmid pcDNA3.1(+)-BmCPI/BmGAPDH of periodic Brugia malayi for investigation of the DNA vaccine-elicited immune responses. MATERIALS AND METHODS We cloned a gene encoding the CPIs and GAPDH from periodic B. malayi into vector pcDNA3.1. The composited plasmid or the control was injected into the tibialis anterior muscle of the hind leg in BALB/c mice, respectively. The target genes were detected by reverse transcription-polymerase chain reaction in muscle tissues. The stimulation index (SI) of T-lymphocyte proliferation and the levels of interferon-gamma (INF-g) and interleukin-4 ( IL-4) in serum were detected by thiazolyl blue tetrazolium blue and enzyme-linked immunosorbent assays. RESULTS The pcDNA3.1(+)-BmCPI/BmGAPDH was amplified from muscle tissues of the mice after immunisation. The SI of the immunised group was significantly higher than that of the two control groups (P < 0.05). The levels of INF-g and IL-4 of pcDNA3.1(+)-BmCPI/BmGAPDH group were both higher than those of the two control groups (P < 0.05). The level of INF-g of pcDNA3.1(+)-BmCPI/BmGAPDH group was significantly higher than that of pcDNA3.1(+)-BmCPI/CpG group (P < 0.05). CONCLUSIONS We conclude that the recombinant plasmid pcDNA3.1(+)-BmCPI/BmGAPDH could elicit specific humoural and cellular immune responses in mice.
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Affiliation(s)
- Z Fang
- Department of Parasitology, Medical College, Nantong University, Nantong, Jiangsu 226001, China
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48
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Zhang SS, Liu XG, Chen SY, Tan DH, Jiang CY, Wu JQ, Li Q, Wang H. (Pentamethylcyclopentadienyl)cobalt(III)-Catalyzed Oxidative [4+2] Annulation of NH Imines with Alkynes: Straightforward Synthesis of Multisubstituted Isoquinolines. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600025] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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49
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Liu XG, Zhang SS, Jiang CY, Wu JQ, Li Q, Wang H. Cp*Co(III)-Catalyzed Annulations of 2-Alkenylphenols with CO: Mild Access to Coumarin Derivatives. Org Lett 2015; 17:5404-7. [DOI: 10.1021/acs.orglett.5b02728] [Citation(s) in RCA: 122] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xu-Ge Liu
- School of Pharmaceutical
Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Shang-Shi Zhang
- School of Pharmaceutical
Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Chun-Yong Jiang
- School of Pharmaceutical
Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Jia-Qiang Wu
- School of Pharmaceutical
Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Qingjiang Li
- School of Pharmaceutical
Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Honggen Wang
- School of Pharmaceutical
Sciences, Sun Yat-sen University, Guangzhou, 510006, China
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Wu JQ, Yang Z, Zhang SS, Jiang CY, Li Q, Huang ZS, Wang H. From Indoles to Carbazoles: Tandem Cp*Rh(III)-Catalyzed C–H Activation/Brønsted Acid-Catalyzed Cyclization Reactions. ACS Catal 2015. [DOI: 10.1021/acscatal.5b01801] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Jia-Qiang Wu
- School of Pharmaceutical
Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Zhen Yang
- School of Pharmaceutical
Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Shang-Shi Zhang
- School of Pharmaceutical
Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Chun-Yong Jiang
- School of Pharmaceutical
Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Qingjiang Li
- School of Pharmaceutical
Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Zhi-Shu Huang
- School of Pharmaceutical
Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Honggen Wang
- School of Pharmaceutical
Sciences, Sun Yat-sen University, Guangzhou 510006, China
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