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Jiang L, Pan T, Lv Q, Yuan W, Liu X, Qu X, Luo D, Wan S, Cui S. Novel ProTide prodrugs of 5-fluoro-2'-deoxyuridine for the treatment of liver cancer. Eur J Med Chem 2023; 260:115763. [PMID: 37659196 DOI: 10.1016/j.ejmech.2023.115763] [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: 12/09/2022] [Revised: 04/08/2023] [Accepted: 08/24/2023] [Indexed: 09/04/2023]
Abstract
ProTide prodrug technology has emerged as a promising way for the development of anti-viral and anti-tumor drugs, whereas, there are fewer applications for the treatment of liver cancer. Herein, a series of distinct 3'-ester ProTide prodrugs of 5-fluoro-2'-deoxyuridine (FdUR) were synthesized and evaluated for their anti-liver cancer activity. The most efficient prodrug 11b reached a sub-micromolar activity (IC50 = 0.42 ± 0.13 μM) against HepG2 and over 100-fold and 200-fold improvements compared to 5-FU, respectively. 11b also demonstrated favorable selectivity towards normal liver cells L-02 (IC50 > 100 μM). In vitro metabolic stability studies revealed that 11b is stable in the plasma and could be activated rapidly in the liver, which supported that 11b is liver-targeted. Importantly, to more accurately evaluate the anti-HCC activity of 11b, the liver orthotopic model was built and 11b significantly suppressed tumor growth (TGI = 75.5%) at a dose of 60 mg/kg/2d in vivo without obvious toxicity. Overall, these promising results indicated that 11b could serve as a safe and effective prodrug of 5-FU nucleoside for liver cancer therapy.
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Affiliation(s)
- Leilei Jiang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266071, China
| | - Ting Pan
- Beijing Key Laboratory of Environmental Toxicology, Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China
| | - Qin Lv
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266071, China
| | - Wenmin Yuan
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266071, China
| | - Xiaochun Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266071, China
| | - Xianjun Qu
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China
| | - Dongdong Luo
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266071, China.
| | - Shengbiao Wan
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266071, China.
| | - Shuxiang Cui
- Beijing Key Laboratory of Environmental Toxicology, Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China.
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2
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Liu W, Wang J, Wang S, Yue K, Hu Y, Liu X, Wang L, Wan S, Xu X. Discovery of new non-covalent and covalent inhibitors targeting SARS-CoV-2 papain-like protease and main protease. Bioorg Chem 2023; 140:106830. [PMID: 37683544 DOI: 10.1016/j.bioorg.2023.106830] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 06/04/2023] [Accepted: 08/30/2023] [Indexed: 09/10/2023]
Abstract
Global coronavirus disease 2019 (COVID-19) pandemic still threatens human health and public safety, and the development of effective antiviral agent is urgently needed. The SARS-CoV-2 main protease (Mpro) and papain-like protease (PLpro) are vital proteins in viral replication and promising therapeutic targets. Additionally, PLpro also modulates host immune response by cleaving ubiquitin and interferon-stimulated gene product 15 (ISG15) from ISGylated host proteins. In this report, we identified [1,2]selenazolo[5,4-c]pyridin-3(2H)-one and benzo[d]isothiazol-3(2H)-one as attractive scaffolds of PLpro and Mpro inhibitors. The representative compounds 6c and 7e exhibited excellent PLpro inhibition with percent inhibition of 42.9% and 44.9% at 50 nM, respectively. The preliminary enzyme kinetics experiment and fluorescent labelling experiment results determined that 6c was identified as a covalent PLpro inhibitor, while 7e was a non-covalent inhibitor. Molecular docking and dynamics simulations revealed that 6c and 7e bound to Zn-finger domain of PLpro. Compounds 6c and 7e were also identified to potent Mpro inhibitors, and they exhibited potent antiviral activities in SARS-CoV-2 infected Vero E6 cells, with EC50 value of 3.9 μM and 7.4 μM, respectively. In addition, the rat liver homogenate half-life of 6c and 7e exceeded 24 h. These findings suggest that 6c and 7e are promising led compounds for further development of PLpro/Mpro dual-target antiviral drugs.
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Affiliation(s)
- Wandong Liu
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 266003 Qingdao, China
| | - Juan Wang
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 266003 Qingdao, China
| | - Suyun Wang
- Key Laboratory of Special Pathogens and Biosafety, Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, 430071 Wuhan, China
| | - Kairui Yue
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 266003 Qingdao, China
| | - Yu Hu
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 266003 Qingdao, China
| | - Xiaochun Liu
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 266003 Qingdao, China
| | - Lihao Wang
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 266003 Qingdao, China
| | - Shengbiao Wan
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 266003 Qingdao, China.
| | - Ximing Xu
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 266003 Qingdao, China.
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3
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Sun W, Wong ILK, Law HKW, Su X, Chan TCF, Sun G, Yang X, Wang X, Chan TH, Wan S, Chow LMC. In Vivo Reversal of P-Glycoprotein-Mediated Drug Resistance in a Breast Cancer Xenograft and in Leukemia Models Using a Novel, Potent, and Nontoxic Epicatechin EC31. Int J Mol Sci 2023; 24:ijms24054377. [PMID: 36901808 PMCID: PMC10002220 DOI: 10.3390/ijms24054377] [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: 01/09/2023] [Revised: 02/10/2023] [Accepted: 02/15/2023] [Indexed: 02/25/2023] Open
Abstract
The modulation of P-glycoprotein (P-gp, ABCB1) can reverse multidrug resistance (MDR) and potentiate the efficacy of anticancer drugs. Tea polyphenols, such as epigallocatechin gallate (EGCG), have low P-gp-modulating activity, with an EC50 over 10 μM. In this study, we optimized a series of tea polyphenol derivatives and demonstrated that epicatechin EC31 was a potent and nontoxic P-gp inhibitor. Its EC50 for reversing paclitaxel, doxorubicin, and vincristine resistance in three P-gp-overexpressing cell lines ranged from 37 to 249 nM. Mechanistic studies revealed that EC31 restored intracellular drug accumulation by inhibiting P-gp-mediated drug efflux. It did not downregulate the plasma membrane P-gp level nor inhibit P-gp ATPase. It was not a transport substrate of P-gp. A pharmacokinetic study revealed that the intraperitoneal administration of 30 mg/kg of EC31 could achieve a plasma concentration above its in vitro EC50 (94 nM) for more than 18 h. It did not affect the pharmacokinetic profile of coadministered paclitaxel. In the xenograft model of the P-gp-overexpressing LCC6MDR cell line, EC31 reversed P-gp-mediated paclitaxel resistance and inhibited tumor growth by 27.4 to 36.1% (p < 0.001). Moreover, it also increased the intratumor paclitaxel level in the LCC6MDR xenograft by 6 fold (p < 0.001). In both murine leukemia P388ADR and human leukemia K562/P-gp mice models, the cotreatment of EC31 and doxorubicin significantly prolonged the survival of the mice (p < 0.001 and p < 0.01) as compared to the doxorubicin alone group, respectively. Our results suggested that EC31 was a promising candidate for further investigation on combination therapy for treating P-gp-overexpressing cancers.
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Affiliation(s)
- Wenqin Sun
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Iris L. K. Wong
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Helen Ka-Wai Law
- Department of Health Technology and Informatics, Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Xiaochun Su
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Terry C. F. Chan
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Gege Sun
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Xinqing Yang
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Xingkai Wang
- Laboratory for Marine Drugs and Bioproducts of Qingdao, National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Tak Hang Chan
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong SAR, China
- Department of Chemistry, McGill University, Montreal, QC H3A 2K6, Canada
| | - Shengbiao Wan
- Laboratory for Marine Drugs and Bioproducts of Qingdao, National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Correspondence: (S.W.); (L.M.C.C.); Tel.: +86-532-8203-1087 (S.W.); +852-3400-8662 (L.M.C.C.); Fax: +86-532-8203-3054 (S.W.); +852-2364-9932 (L.M.C.C.)
| | - Larry M. C. Chow
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong SAR, China
- Correspondence: (S.W.); (L.M.C.C.); Tel.: +86-532-8203-1087 (S.W.); +852-3400-8662 (L.M.C.C.); Fax: +86-532-8203-3054 (S.W.); +852-2364-9932 (L.M.C.C.)
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4
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Guo Z, Zhang S, Liu X, Zhao G, Zhang Y, Luo D, Zhao X, Xu X, Qu X, Li L, Wan S, Cui S. Design, synthesis, and evaluation of JTE-013 derivatives as novel potent S1PR2 antagonists for recovering the sensitivity of colorectal cancer to 5-fluorouracil. Bioorg Chem 2023; 131:106318. [PMID: 36527992 DOI: 10.1016/j.bioorg.2022.106318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 11/05/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022]
Abstract
Targeting sphingosine-1-phosphate receptor 2 (S1PR2) has been proved as a promising strategy to reverse 5-fluorouracil (5-FU) resistance. Here, we report the discovery of the novel JTE-013 derivative compound 37 h as a more effective S1PR2 antagonist to reverse 5-FU resistance in SW620/5-FU and HCT116DPD cells than JTE-013 and previously reported compound 5. Compound 37 h could effectively bind S1PR2 and reduce its expression, thus leading to decreased expression of JMJD3 and dihydropyrimidine dehydrogenase (DPD), while also increasing the level of H3K27me3 to decrease the degradation of 5-FU and thereby increase its intracellular concentration in SW620/5-FU, HCT116DPD, and L02 cells. Furthermore, compound 37 h showed good selectivity to other S1PRs and normal colon cell line NCM460. Western blot analysis demonstrated that compound 37 h could abrogate the FBAL-stimulated upregulation of DPD expression by S1PR2. Importantly, compound 37 h also showed favorable metabolic stability with a long half-life (t1/2) of 7.9 h. Moreover, compound 37 h significantly enhanced the antitumor efficacy of 5-FU in the SW620/5-FU animal model. Thus, the JTE-013-based derivative compound 37 h represents a promising lead compound for the development of novel 5-FU sensitizers for colorectal cancer (CRC) therapy.
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Affiliation(s)
- Zhikun Guo
- Department of Gastroenterology, Aerospace Center Hospital, Peking University Aerospace School of Clinical Medicine, Beijing 100049, China; Beijing Key Laboratory of Environmental Toxicology, Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Shuai Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
| | - Xiaochun Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
| | - Guangjian Zhao
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
| | - Yingzhi Zhang
- Beijing Key Laboratory of Environmental Toxicology, Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Dongdong Luo
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China.
| | - Xuecui Zhao
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
| | - Ximing Xu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
| | - Xianjun Qu
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Lin Li
- Department of Gastroenterology, Aerospace Center Hospital, Peking University Aerospace School of Clinical Medicine, Beijing 100049, China
| | - Shengbiao Wan
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China.
| | - Shuxiang Cui
- Beijing Key Laboratory of Environmental Toxicology, Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China.
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5
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Luo D, Liu X, Jiang L, Guo Z, Lv Y, Tian X, Wang X, Cui S, Wan S, Xu X, Li X, Qu X. Correction to “Rational Design, Synthesis, and Biological Evaluation of Novel S1PR2 Antagonists for Reversing 5-FU-Resistance in Colorectal Cancer”. J Med Chem 2022; 65:15991. [DOI: 10.1021/acs.jmedchem.2c01832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Dongdong Luo
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
| | - Xiaochun Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
| | - Leilei Jiang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
| | - Zhikun Guo
- Beijing Key Laboratory of Environmental Toxicology, Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, 100069 Beijing, China
| | - Yan Lv
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
| | - Xiaochen Tian
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
| | - Xiaoyan Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
| | - Shuxiang Cui
- Beijing Key Laboratory of Environmental Toxicology, Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, 100069 Beijing, China
| | - Shengbiao Wan
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
| | - Ximing Xu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
| | - Xiaoyang Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
| | - Xianjun Qu
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, 100069 Beijing, China
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6
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Luo D, Liu X, Jiang L, Guo Z, Lv Y, Tian X, Wang X, Cui S, Wan S, Qu X, Xu X, Li X. Rational Design, Synthesis, and Biological Evaluation of Novel S1PR2 Antagonists for Reversing 5-FU-Resistance in Colorectal Cancer. J Med Chem 2022; 65:14553-14577. [PMID: 36269639 DOI: 10.1021/acs.jmedchem.2c00958] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Resistance to 5-FU reduces its clinical efficacy for the treatment of colorectal cancer. Sphingosine-1-phosphate receptor 2 (S1PR2) has emerged as a potential target to reverse 5-FU-resistance by inhibiting the expression of dihydropyrimidine dehydrogenase (DPD). In this study, 38 novel S1PR2 antagonists based on aryl urea structure were designed and synthesized, and the structure-activity relationship was investigated based on the S1PR2 binding assay. Representative compound 43 potently interacts with S1PR2 with a KD value of 0.73 nM. It displays potent 5-FU resensitizing activity in multiple 5-FU-resistant tumor cell lines, particularly in SW620/5-FU (EC50 = 1.99 ± 0.03 μM) but shows no cytotoxicity in the normal colon cell line NCM460 up to 1000 μM. Moreover, 43 significantly enhances the antitumor efficacy of 5-FU in the SW620/5-FU animal model. These data suggest that 43 could be a novel lead compound for developing a 5-FU resensitizing agent.
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Affiliation(s)
- Dongdong Luo
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
| | - Xiaochun Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
| | - Leilei Jiang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
| | - Zhikun Guo
- Beijing Key Laboratory of Environmental Toxicology, Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, 100069 Beijing, China
| | - Yan Lv
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
| | - Xiaochen Tian
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
| | - Xiaoyan Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
| | - Shuxiang Cui
- Beijing Key Laboratory of Environmental Toxicology, Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, 100069 Beijing, China
| | - Shengbiao Wan
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
| | - Xianjun Qu
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, 100069 Beijing, China
| | - Ximing Xu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
| | - Xiaoyang Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, China
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Yue K, Xu C, Wang Z, Liu W, Liu C, Xu X, Xing Y, Chen S, Li X, Wan S. 1,2-Isoselenazol-3(2H)-one derivatives as NDM-1 inhibitors displaying synergistic antimicrobial effects with meropenem on NDM-1 producing clinical isolates. Bioorg Chem 2022; 129:106153. [DOI: 10.1016/j.bioorg.2022.106153] [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] [Received: 06/09/2022] [Revised: 08/16/2022] [Accepted: 09/12/2022] [Indexed: 11/30/2022]
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Wan S, Zhang TT, Chen T, Zhang D, Mo D, Xu J, Tian HM, Ren Y. [Primary pigmented nodular adrenal disease: a report of three cases]. Zhonghua Nei Ke Za Zhi 2022; 61:944-947. [PMID: 35922222 DOI: 10.3760/cma.j.cn112138-20211031-00760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- S Wan
- Department of Endocrinology and Metabolism, Adrenal Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - T T Zhang
- Department of Endocrinology and Metabolism, Adrenal Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - T Chen
- Department of Endocrinology and Metabolism, Adrenal Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - D Zhang
- Department of Endocrinology and Metabolism, Adrenal Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - D Mo
- Department of Endocrinology and Metabolism, Adrenal Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - J Xu
- Department of Endocrinology and Metabolism, Adrenal Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - H M Tian
- Department of Endocrinology and Metabolism, Adrenal Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Y Ren
- Department of Endocrinology and Metabolism, Adrenal Center, West China Hospital, Sichuan University, Chengdu 610041, China
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Luo D, Guo Z, Zhao X, Wu L, Liu X, Zhang Y, Zhang Y, Deng Z, Qu X, Cui S, Wan S. Novel 5-fluorouracil sensitizers for colorectal cancer therapy: Design and synthesis of S1P receptor 2 (S1PR2) antagonists. Eur J Med Chem 2022; 227:113923. [PMID: 34688013 DOI: 10.1016/j.ejmech.2021.113923] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 10/05/2021] [Accepted: 10/12/2021] [Indexed: 12/21/2022]
Abstract
Sphingosine-1-phosphate receptor 2 (S1PR2) has been identified as a brand-new GPCR target for designing antagonists to reverse 5-FU resistance. We herein report the structural optimization and structure-activity relationship of JTE-013 derivatives as S1PR2 antagonists. Compound 9d was the most potent S1PR2 antagonist (KD = 34.8 nM) among developed compounds. Here, compound 9d could significantly inhibit the expression of dihydropyrimidine dehydrogenase (DPD) to reverse 5-FU-resistance in HCT116DPD and SW620/5-FU cells. Further mechanism studies demonstrated that compound 9d not only inhibited S1PR2 but also affected the transcription of S1PR2. In addition, compound 9d also showed acceptable selectivity to normal cells (NCM460). Importantly, compound 9d with suitable pharmacokinetic properties could significantly reverse 5-FU-resistance in the HCT116DPD and SW620/5-FU xenograft models without obvious toxicity, in which the inhibition rates of 5-FU were increased from 23.97% to 65.29% and 27.23% to 60.81%, respectively. Further immunohistochemistry and western blotting analysis also demonstrated that compound 9d significantly decreases the expression of DPD in tumor and liver tissues. These results indicated that compound 9d is a promising lead compound to reverse 5-FU-resistance for colorectal cancer therapy.
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Affiliation(s)
- Dongdong Luo
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 266003, Qingdao, China
| | - Zhikun Guo
- Beijing Key Laboratory of Environmental Toxicology, Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, 100069, Beijing, China
| | - Xuecui Zhao
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 266003, Qingdao, China
| | - Lijuan Wu
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 266003, Qingdao, China
| | - Xiaochun Liu
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 266003, Qingdao, China
| | - Yingzhi Zhang
- Beijing Key Laboratory of Environmental Toxicology, Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, 100069, Beijing, China
| | - Yuhang Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, 100069, Beijing, China
| | - Zirong Deng
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 266003, Qingdao, China
| | - Xianjun Qu
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, 100069, Beijing, China
| | - Shuxiang Cui
- Beijing Key Laboratory of Environmental Toxicology, Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, 100069, Beijing, China.
| | - Shengbiao Wan
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 266003, Qingdao, China.
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Luo D, Zhang Y, Yang S, Tian X, Lv Y, Guo Z, Liu X, Han G, Liu S, Wang W, Cui S, Qu X, Wan S. Design, synthesis and biological evaluation of sphingosine-1-phosphate receptor 2 antagonists as potent 5-FU-resistance reversal agents for the treatment of colorectal cancer. Eur J Med Chem 2021; 225:113775. [PMID: 34411894 DOI: 10.1016/j.ejmech.2021.113775] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/27/2021] [Accepted: 08/11/2021] [Indexed: 02/07/2023]
Abstract
5-Fluorouracil (5-FU) and its prodrugs are the essential clinical drugs for colorectal cancer (CRC) treatment. However, the drug resistance of 5-FU has caused high mortality of CRC patients. Thus, it is urgent to develop reversal agents of 5-FU resistance. Sphingosine-1-phosphate receptor 2 (S1PR2) was proved to be a potential target for reversing 5-FU resistance, but the activity of known S1PR2 antagonists JTE-013 were weak in 5-FU-resistant cell lines. To develop more potent S1PR2 antagonists to treat 5-FU-resistant cancer, a series of JTE-013 derivatives were designed and synthesized. The most promising compound 40 could markedly reverse the resistance in 5-FU-resistant HCT116 cells and 5-FU-resistant SW620 cells via inhibiting the expression of dihydropyrimidine dehydrogenase (DPD). The key was that compound 40 with improved pharmacokinetic properties significantly increased the inhibitory rate of 5-FU in the SW620/5-FU cells xenograft model with no observable toxicity by inhibiting the expression of DPD in tumor and liver tissues. Altogether, these results suggest that compound 40 may be a promising drug candidate to reverse 5-FU resistance in the treatment of CRC.
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Affiliation(s)
- Dongdong Luo
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Yuhang Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China; Institute of Clinical Pharmacology, Peking University First Hospital, Beijing, 100034, China
| | - Shuang Yang
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Xiaochen Tian
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Yan Lv
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Zhikun Guo
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China
| | - Xiaochun Liu
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Gaitian Han
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Shuai Liu
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Wenyu Wang
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China
| | - Shuxiang Cui
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, China
| | - Xianjun Qu
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China.
| | - Shengbiao Wan
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China.
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11
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Wan S, Speechly-Dick ME, Menezes LJ, Endozo R, Bell R, Walker M, Ganeshan B, Dickson J, Kayani I, Groves AM. Survival Outcome with Routine Clinical Use of 82Rb PET/CT Myocardial Blood Flow (MBF) Quantification. Eur Heart J Cardiovasc Imaging 2021. [DOI: 10.1093/ehjci/jeab111.067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public Institution(s). Main funding source(s): NIHR Biomedical Research Centre, University College London Hospitals
Background
The prognostic value of 82Rb PET/CT derived myocardial blood flow (MBF) is increasingly recognised in both general and specific cardiovascular populations.
Purpose
This study investigates the prognostic potential of MBF in a large cohort of patients undergoing routine 82Rb PET/CT examination.
Methods
1148 consecutive patients (687 males, mean age 64 +/- 12 years) whom had been referred for 82Rb PET/CT examination in a single centre were included in this study. All patients completed a stress 82Rb PET/CT with adenosine infusion, paired with a rest study. Dynamic PET acquisitions were performed in both. Cardiovascular risk factors were documented as per clinical routine. Images were checked for quality and analysed using a proprietary software by an experienced operator to derive MBF parameters. Overall survival was recorded following the study.
Results
Median follow-up period was 71 +/- 28 months. Mean survival was 121 (95% CI: 118-124) months. On univariate analysis, global myocardial flow reserve <1.77 was associated with a higher all-cause mortality (p < 0.001). Other parameters including higher age (> =76 years), lower BMI (<21), qualitative abnormality on the myocardial perfusion scan (MPS), low hyperaemic ejection fraction on the gated studies (stress < 37 and rest < 34). Patients being on cardiac glycosides and diuretics were also significant predictor of poor prognosis (p < 0.001) on univariate analysis, presumably reflecting underlying arrhythmia and heart failure. A multivariate Cox regression analysis (step-wise Forward Wald), comprising of the above significant univariate markers, highlighted global myocardial flow reserve (HR: 2.6, 95%CI: 1.8-3.6, p < 0.001), age (HR: 2.8, 95%CI: 2.0-3.9, p < 0.001),, BMI (HR: 2.7, 95%CI: 1.7-4.1, p < 0.001),, ejection fraction (stress - HR: 3.3, 95%CI: 2.3-4.8, p < 0.001), MPS (HR: 1.5, 95%CI: 1.1-2.1, p = 0.024), and patients on diuretics (HR: 1.8, 95%CI: 1.2-2.5, p = 0.003) were independent predictors of overall survival (overall model: p < 0.001)
Discussion
We show that high volume routinely derived MBF in patients undergoing 82Rb PET/CT is a strong predictor of mortality and independent of other risk factors. This has important clinical implication for measuring not only interventional treatment but also measuring the effect of lifestyle and medical strategies.
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Affiliation(s)
- S Wan
- University College London Hospitals, Institute of Nuclear Medicine, London, United Kingdom of Great Britain & Northern Ireland
| | - ME Speechly-Dick
- University College London Hospitals, Department of Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - LJ Menezes
- University College London Hospitals, Institute of Nuclear Medicine, London, United Kingdom of Great Britain & Northern Ireland
| | - R Endozo
- University College London Hospitals, Institute of Nuclear Medicine, London, United Kingdom of Great Britain & Northern Ireland
| | - R Bell
- University College London, Hatter Cardiovascular Institute, London, United Kingdom of Great Britain & Northern Ireland
| | - M Walker
- University College London, Hatter Cardiovascular Institute, London, United Kingdom of Great Britain & Northern Ireland
| | - B Ganeshan
- University College London Hospitals, Institute of Nuclear Medicine, London, United Kingdom of Great Britain & Northern Ireland
| | - J Dickson
- University College London Hospitals, Institute of Nuclear Medicine, London, United Kingdom of Great Britain & Northern Ireland
| | - I Kayani
- University College London Hospitals, Institute of Nuclear Medicine, London, United Kingdom of Great Britain & Northern Ireland
| | - AM Groves
- University College London Hospitals, Institute of Nuclear Medicine, London, United Kingdom of Great Britain & Northern Ireland
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12
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Wan S, Steeden J, Rega M, Hoy L, Walls D, Endozo R, Hoath J, Shortman R, Agu O, Menezes L, Muthurangu V, Groves AM. Comprehensive mechanical & metabolic imaging of abdominal aortic aneurysm with 4D flow/ FDG PET on an integrated PETMRI: a feasibility study. Eur Heart J Cardiovasc Imaging 2021. [DOI: 10.1093/ehjci/jeab111.072] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public Institution(s). Main funding source(s): NIHR Biomedical Research Centre, University College London Hospitals.
Background
A number of non-invasive imaging derived parameters have been implicated in the development and progression of abdominal aortic aneurysm, although the mechanism, and relationships of many of these are yet to be precisely determined. Mechanical parameters can now be studied using 4D phase contrast magnetic resonance (PCMR), and inflammatory cellular activity can be detected with FDG PET.
Purpose
It may be postulated that inflammation of the aortic wall may be the intermediary at the tissue level linking mechanical wall shear stress (WSS) to aneurysm progression. It may be feasible to study 4D PCMR and FDG PET at the same patient visit on a PETMRI platform, with the potential to enhance temporal and spatial co-registration and improving the understanding of any relationship between these two parameters. Our study aims to assess feasibility of studying these on an integrated PETMRI system.
Methods
7 patients with known aortic aneurysm were recruited in a vascular ultrasound screening follow up clinic. During a single visit following 6 hours fasting, all patients underwent FDG injection and 60 minutes uptake period. With quiet breathing, list mode PET acquisition and concurrent 4D PCMR was acquired using stacks of spiral acquisition, with ECG trace information for retrospective gating. Images from the 4D PCMR and FDG PET were assessed qualitatively for image quality and visual matching.
Results
All 7 patients completed the study. Overall image quality was adequate to good. There is qualitatively a good concordance with impression of positive correlation between wall shear stress and inflammatory signal (see attached image).
Conclusion
We have demonstrated feasibility of combined assessment of mechanical and metabolic imaging parameters using an integrated PETMRI system. Initial findings show there to be a broad concordance of wall shear stress and inflammatory signal in the abdominal aneurysm.
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Affiliation(s)
- S Wan
- University College London Hospitals, Institute of Nuclear Medicine, London, United Kingdom of Great Britain & Northern Ireland
| | - J Steeden
- University College London, Centre for Translational Cardiovascular Imaging, Institute of Cardiovascular Science , London, United Kingdom of Great Britain & Northern Ireland
| | - M Rega
- University College London Hospitals, Institute of Nuclear Medicine, London, United Kingdom of Great Britain & Northern Ireland
| | - L Hoy
- University College London Hospitals, Institute of Nuclear Medicine, London, United Kingdom of Great Britain & Northern Ireland
| | - D Walls
- University College London Hospitals, Institute of Nuclear Medicine, London, United Kingdom of Great Britain & Northern Ireland
| | - R Endozo
- University College London Hospitals, Institute of Nuclear Medicine, London, United Kingdom of Great Britain & Northern Ireland
| | - J Hoath
- University College London Hospitals, Institute of Nuclear Medicine, London, United Kingdom of Great Britain & Northern Ireland
| | - R Shortman
- University College London Hospitals, Institute of Nuclear Medicine, London, United Kingdom of Great Britain & Northern Ireland
| | - O Agu
- University College London Hospitals, Vascular Services, London, United Kingdom of Great Britain & Northern Ireland
| | - L Menezes
- University College London Hospitals, Institute of Nuclear Medicine, London, United Kingdom of Great Britain & Northern Ireland
| | - V Muthurangu
- University College London, Centre for Translational Cardiovascular Imaging, Institute of Cardiovascular Science , London, United Kingdom of Great Britain & Northern Ireland
| | - AM Groves
- University College London, Centre for Translational Cardiovascular Imaging, Institute of Cardiovascular Science , London, United Kingdom of Great Britain & Northern Ireland
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13
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Almhanedi H, McGurk M, Wan S, Schilling C. Novel double injection technique for sentinel lymph node biopsy in oral cancer. Br J Oral Maxillofac Surg 2021; 59:1296-1301. [PMID: 34742602 DOI: 10.1016/j.bjoms.2021.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 07/04/2021] [Indexed: 10/20/2022]
Abstract
The development of new lymphatic tracers and the advancement of hybrid tracers, such as indocyanine green (ICG)-Nanocoll (GE Healthcare), represent an exciting step in the future of sentinel lymph node biopsy (SLNB). These tracers aim to improve our ability to detect sentinel lymph nodes by enhancing their localisation. The aim of this study was to assess the performance of a novel dual tracer, double injection technique of ICG-'cold'-Nanocoll and radiolabelled Nanocoll, in SLNB for early-stage oral cancer. A double injection technique was performed first using 99mTc-Nancoll prior to sentinel node imaging followed by ICG-'cold'-Nanocoll injection in theatre. Analysis involved examination of the number, labelling, and location of the nodes harvested, sentinel node status, survival analysis, false negative rate, and complications associated with use of the technique. ICG 'cold' Nanocoll results showed concordance of fluorescence and radioactivity detection in 74 nodes in 24 patients. Most importantly, all nodes found positive for metastasis (6 nodes) were discovered to be both 'hot' and fluorescent; 74 nodes removed were both 'hot' and fluorescent, eight fluorescent only and six 'hot' only. Our results indicate that two sets of tracer injections given at two different time points will flow to the same sentinel nodes. This double labelling increased our confidence that the retrieved node was a sentinel node.
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Affiliation(s)
- H Almhanedi
- Head and Neck Academic Centre University College London & Head and Neck Surgery Department University College London Hospital, United Kingdom.
| | - M McGurk
- Head and Neck Academic Centre University College London & Head and Neck Surgery Department University College London Hospital, United Kingdom.
| | - S Wan
- Institute of Nuclear Medicine, University College London Hospital, United Kingdom.
| | - C Schilling
- Head and Neck Academic Centre University College London & Head and Neck Surgery Department University College London Hospital, United Kingdom.
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14
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Liu LS, Guo WP, Wang YF, Dong Y, Tuo Y, Wang S, Wan S, Phuntsok CZX, Peng L, Li J, Han AJ, Liu DW. [Hepatic echinococcus granulosus: a clinicopathological analysis of thirteen cases]. Zhonghua Bing Li Xue Za Zhi 2021; 50:650-654. [PMID: 34078055 DOI: 10.3760/cma.j.cn112151-20210202-00119] [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 clinicopathologic characteristics of hepatic echinococcus granulosus (HEG). Methods: Thirteen cases of HEG were collected from Linzhi People's Hospital between January 2017 to October 2020, and their clinicopathologic features, ultrasound classification, immunophenotype and histochemical data were analyzed, retrospectively and the relevant literature was reviewed. Results: Thirteen patients (5 male patients, 8 female patients) were included in this cohort, and the mean age was 40 years. The most common clinical presentation was mild abdominal distention and pain (9/13). Based on WHO-IWGE ultrasound standardized classification, these cases were classified into 5 types, including type CL (1 case), type CE1 (2 cases), type CE2 (4 cases), type CE3 (3 cases) and type CE4 (3 cases). Gross examination revealed a solitary cyst localized in the liver, varying from 2.7 to 13.5 cm in diameter, and most of them(10/13)were more than 10 cm. Histopathologically, these cysts possessed a thin inner germinal layer and outer adventitial layer, and a central cavity filled with a clear"hydatid"fluid. The germinal layer was continuous and generated brood capsules and protoscoleces. The laminated membranes were clearly demonstrated by elastic fiber and Gomori's stains. Inside the"mother"cyst, there were a varying number of"daughter"vesicles of variable sizes. The inflammatory reaction around the cyst consisted of eosinophils, mononuclear cells immediately next to the cyst layer and sometimes formed granuloma and giant cells resembling the Langhan's type giant cells. The lymphoid cells were positive for CD20 and CD3. The CD68 immunohistochemistry clearly demonstrated epithelioid cells of granuloma in two cases. Moreover, immunohistochemistry revealed plasma cells were locally positive for CD38, IgG and IgG4, but not meeting the criteria for IgG4 related lesion. Conclusions: Hepatic echinococcus granulosus is a zoonotic parasitic disease prevalent in pastoral areas such as Tibet. It is important to understand its clinical features, ultrasound characteristics and histological morphology.
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Affiliation(s)
- L S Liu
- Department of Pathology, Linzhi People's Hospital, Linzhi 860000, China
| | - W P Guo
- Department of Gastroenterological Surgery, the Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Y F Wang
- Department of Pathology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Y Dong
- Department of Pathology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Y Tuo
- Department of Pathology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - S Wang
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - S Wan
- Department of Pathology, Linzhi People's Hospital, Linzhi 860000, China
| | - C Z X Phuntsok
- Department of Pathology, Linzhi People's Hospital, Linzhi 860000, China
| | - L Peng
- Department of Laboratory, Linzhi People's Hospital, Linzhi 860000, China
| | - J Li
- ENT. Department, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - A J Han
- Department of Pathology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - D W Liu
- Department of Pathology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
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15
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Brown A, Shah S, Dluzewski S, Musaddaq B, Wagner T, Szyszko T, Wan S, Groves A, Mokbel K, Malhotra A. Unilateral axillary adenopathy following COVID-19 vaccination: a multimodality pictorial illustration and review of current guidelines. Clin Radiol 2021; 76:553-558. [PMID: 34053731 PMCID: PMC8118644 DOI: 10.1016/j.crad.2021.04.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 04/29/2021] [Indexed: 11/17/2022]
Abstract
We present a multimodality pictorial review of axillary lymphadenopathy in patients recently vaccinated against COVID-19. As the mass vaccination programme continues to be rolled out worldwide in an effort to combat the pandemic, it is important that radiologists consider recent COVID-19 vaccination in the differential diagnosis of unilateral axillary lymphadenopathy and are aware of typical appearances across all imaging methods. We review current guidelines on the management of unilateral axillary lymphadenopathy in the context of recent COVID-19 vaccination.
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Affiliation(s)
- A Brown
- Radiology Department, Royal Free Hospital, Pond Street, London, NW3 2QG, UK.
| | - S Shah
- Department of Nuclear Medicine, Royal Free Hospital, London, NW3 2QG, UK
| | - S Dluzewski
- Radiology Department, Royal Free Hospital, Pond Street, London, NW3 2QG, UK
| | - B Musaddaq
- Radiology Department, Royal Free Hospital, Pond Street, London, NW3 2QG, UK
| | - T Wagner
- Department of Nuclear Medicine, Royal Free Hospital, London, NW3 2QG, UK
| | - T Szyszko
- Department of Nuclear Medicine, Royal Free Hospital, London, NW3 2QG, UK
| | - S Wan
- Institute of Nuclear Medicine, University College London, WC1E 6BT, UK
| | - A Groves
- Institute of Nuclear Medicine, University College London, WC1E 6BT, UK
| | - K Mokbel
- London Breast Institute, The Princess Grace Hospital, 42-52 Nottingham Place, London, W1U 5NY, UK
| | - A Malhotra
- Radiology Department, Royal Free Hospital, Pond Street, London, NW3 2QG, UK
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16
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Ren B, Wan S, Liu L, Qu M, Wu H, Shen H. Distributions of serum thyroid-stimulating hormone in 2020 thyroid disease-free adults from areas with different iodine levels: a cross-sectional survey in China. J Endocrinol Invest 2021; 44:1001-1010. [PMID: 32816248 DOI: 10.1007/s40618-020-01395-2] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 08/13/2020] [Indexed: 01/09/2023]
Abstract
PURPOSE The aim of the present study was to describe the distributions of serum thyroid- stimulating hormone (TSH) levels in thyroid disease-free adults from areas with different iodine levels in China. Meanwhile, we aimed to evaluate the influence of age and gender on the distribution of TSH, assess the relationship between concentrations of TSH and free thyroxine (FT4), and analyze the factors that may affect TSH levels. METHODS 2020 adults were included from April 2016 to June 2019. Urinary iodine concentration, serum iodine concentration, serum TSH, FT4, free triiodothyronine, thyroid peroxidase antibodies and thyroglobulin antibodies were measured, and thyroid ultrasonography was performed. RESULTS The median of TSH in iodine-fortification areas (IFA), iodine-adequate areas (IAA), iodine-excessive areas (IEA) were 2.32, 2.11 and 2.34 mIU/L, respectively. Serum TSH concentrations were significantly higher in IFA and IEA than that in IAA (p = 0.005 and < 0.0001). The TSH values of most adults were distributed within the range of 1.01-3.00 mIU/L with the same trend in three groups. In our study, TSH levels did not change with age, and the TSH level of females was higher than that of males (p < 0.0001). There was a negative correlation between FT4 and TSH in IAA (r = - 0.160, p < 0.0001) and IEA (r = - 0.177, p < 0.0001), but there was no correlation between FT4 and TSH in IFA (r = - 0.046, p = 0.370). BMI, smoking status, education levels, and marital status were associated with TSH. CONCLUSION Our study provides a basis for establishing the reference intervals of TSH in different iodine level areas.
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Affiliation(s)
- B Ren
- Centre for Endemic Disease Control, Chinese Centre for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
| | - S Wan
- Centre for Endemic Disease Control, Chinese Centre for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
- Department of Preventive Medicine, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - L Liu
- Centre for Endemic Disease Control, Chinese Centre for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
| | - M Qu
- Centre for Endemic Disease Control, Chinese Centre for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
| | - H Wu
- Centre for Endemic Disease Control, Chinese Centre for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
| | - H Shen
- Centre for Endemic Disease Control, Chinese Centre for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China.
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17
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Hoath J, Menezes LJ, Hamilton O, Endozo R, Wan S, Katramados I, Kayani I, Groves AM. Can deep learning identify normal coronary flow reserve from rubidium myocardial PET perfusion? Eur Heart J Cardiovasc Imaging 2021. [DOI: 10.1093/ehjci/jeaa356.346] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Impaired vasodilator function is an early manifestation of coronary artery disease (CAD) and may precede angiographic stenosis. Rest and stress myocardial blood flow (MBF) are calculated from dynamic imaging during rest/stress Rubidium (Rb) myocardial PET perfusion. Coronary flow reserve (CFR) equals stress divided by rest MBF. CFR is an independent predictor of cardiac mortality in patients with known or suspected CAD. We evaluated the prediction of CFR from analysis of stress/rest PET images by deep learning (DL) as compared with standard calculation of CFR using supervised learning applied methodology using within a commercial DL training platform.
Methods
1036 patients (625 male, 411 female, mean age: 64.3 years old) were studied. Patients underwent Stress/rest Rb PET perfusion, and CFR calculated using MBF software by an expert user. Abnormal CFR was defined as <2.0. The left ventricle myocardium was segmented using standard software.
DL was trained using polar distribution of normalized PET uptake at stress and rest, processed stress and rest images were cropped, the stress images were then subtracted from the rest images. DL was trained using 935 subtracted images and tested using the remaining 101 images. DL was trained with supervision to classify images. The image shows examples of subtracted abnormal cases (1a & 1b).
Results
Using our supervised training methodology, the commercial MBF software platform reported 465 cases as abnormal, with 48 of these were included in the DL test set. The DL platform produced abnormal output classifiers for all the whole test set. DL accurately detected over 70% of abnormal cases.
The commercial MBF software reported 571 cases as normal; with 50 of these contributing to the DL test set. DL was accurate in 48.0% of normal cases. Statistical results are shown in the table.
Conclusion
We have shown the proof of concept that DL algorithms trained with supervision can detect abnormal CFR. Our work shows that further work is needed to develop supervised learning methodology in order to improve accuracy for clinical use.
Statistical Results Statistic Value Sensitivity 63.16% Specificity 56.67% + Predictive Value 48.00% - Predictive Value 70.83% Accuracy 59.18% Abstract Figure.
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Affiliation(s)
- J Hoath
- University College London, London, United Kingdom of Great Britain & Northern Ireland
| | - LJ Menezes
- University College London, London, United Kingdom of Great Britain & Northern Ireland
| | - O Hamilton
- COSMONIO, Cranfield, United Kingdom of Great Britain & Northern Ireland
| | - R Endozo
- University College London, London, United Kingdom of Great Britain & Northern Ireland
| | - S Wan
- University College London, London, United Kingdom of Great Britain & Northern Ireland
| | - I Katramados
- COSMONIO, Cranfield, United Kingdom of Great Britain & Northern Ireland
| | - I Kayani
- University College London, London, United Kingdom of Great Britain & Northern Ireland
| | - AM Groves
- University College London, London, United Kingdom of Great Britain & Northern Ireland
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18
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Aldridge MD, Peet C, Wan S, Shankar A, Gains JE, Bomanji JB, Gaze MN. Paediatric Molecular Radiotherapy: Challenges and Opportunities. Clin Oncol (R Coll Radiol) 2021; 33:80-91. [PMID: 33246658 DOI: 10.1016/j.clon.2020.11.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/17/2020] [Accepted: 11/12/2020] [Indexed: 12/18/2022]
Abstract
The common contemporary indications for paediatric molecular radiotherapy (pMRT) are differentiated thyroid cancer and neuroblastoma. It may also have value in neuroendocrine cancers, and it is being investigated in clinical trials for other diseases. pMRT is the prototypical biomarker-driven, precision therapy, with a unique mode of delivery and mechanism of action. It is safe and well tolerated, compared with other treatments. However, its full potential has not yet been achieved, and its wider use faces a number of challenges and obstacles. Paradoxically, the success of radioactive iodine as a curative treatment for metastatic thyroid cancer has led to a 'one size fits all' approach and limited academic enquiry into optimisation of the conventional treatment regimen, until very recently. Second, the specialised requirements for the delivery of pMRT are available in only a very limited number of centres. This limited capacity and geographical coverage results in reduced accessibility. With few enthusiastic advocates for this treatment modality, investment in research to improve treatments and broaden indications from both industry and national and charitable research funders has historically been suboptimal. Nonetheless, there is now an increasing interest in the opportunities offered by pMRT. Increased research funding has been allocated, and technical developments that will permit innovative approaches in pMRT are available for exploration. A new portfolio of clinical trials is being assembled. These studies should help to move at least some paediatric treatments from simply palliative use into potentially curative protocols. Therapeutic strategies require modification and optimisation to achieve this. The delivery should be personalised and tailored appropriately, with a comprehensive evaluation of tumour and organ-at-risk dosimetry, in alignment with the external beam model of radiotherapy. This article gives an overview of the current status of pMRT, indicating the barriers to progress and identifying ways in which these may be overcome.
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Affiliation(s)
- M D Aldridge
- Department of Oncology, University College London Hospitals NHS Foundation Trust, London, UK; Department of Nuclear Medicine, University College London Hospitals NHS Foundation Trust, London, UK
| | - C Peet
- Department of Oncology, University College London Hospitals NHS Foundation Trust, London, UK
| | - S Wan
- Department of Nuclear Medicine, University College London Hospitals NHS Foundation Trust, London, UK
| | - A Shankar
- Department of Paediatric and Adolescent Oncology, University College London Hospitals NHS Foundation Trust, London, UK
| | - J E Gains
- Department of Oncology, University College London Hospitals NHS Foundation Trust, London, UK
| | - J B Bomanji
- Department of Nuclear Medicine, University College London Hospitals NHS Foundation Trust, London, UK
| | - M N Gaze
- Department of Nuclear Medicine, University College London Hospitals NHS Foundation Trust, London, UK.
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19
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Bao K, Cheung K, Chow JH, Leung C, Tsui W, Lau A, Tse T, Wan S, Kwok M, Wong K. 1709P Cancer patients' perspectives on the real-world impact of COVID-19 pandemic: A multidisciplinary survey. Ann Oncol 2020. [PMCID: PMC7506366 DOI: 10.1016/j.annonc.2020.08.1773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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20
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Affiliation(s)
| | - S. Wan
- Renal Unit Hospital Seremban Negeri Sembilan, Malaysia
| | - S.Y. Tan
- Renal Unit University Hospital 59100 Kuala Lumpur, Malaysia
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21
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Liu X, Wan S, Abdelrehem A, Chen M, Yang C. Benign temporomandibular joint tumours with extension to infratemporal fossa and skull base: condyle preserving approach. Int J Oral Maxillofac Surg 2020; 49:867-873. [PMID: 32044186 DOI: 10.1016/j.ijom.2019.12.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 11/11/2019] [Accepted: 12/24/2019] [Indexed: 11/28/2022]
Abstract
This article introduces a modified surgical approach combining condylotomy with posterior disc attachment release for the resection of large non-malignant masses located in the infratemporal fossa and involving the skull base. This retrospective study included 14 patients treated at Shanghai Ninth People's Hospital, Shanghai Jiao Tong University between January 2010 and December 2016. Clinical evaluations (visual analogue scale (VAS) for pain, maximum inter-incisal opening (MIO), and complications) and radiological findings (magnetic resonance imaging (MRI) and computed tomography (CT)) were collected pre- and postoperatively. All patients had satisfactory surgical exposure and complete resection of the neoplasms. During an average follow-up of 54.8 months, no clinical or radiographic signs of recurrence were reported. MIO increased from 28mm preoperatively to 35.4mm postoperatively (P<0.001). The pain VAS score changed from 5.4 preoperatively to 0.7 postoperatively (P<0.001). Neural function was normal for all patients. Postoperative MRI and CT scans showed a satisfactory disc position and condyle morphology, with no resorption. Three-dimensional reconstruction of the postoperative CT scan also demonstrated healing of the skull base defects. The modified surgical approach combining condylotomy with posterior disc attachment release is suitable for the removal of large non-malignant masses involving the infratemporal fossa and skull base.
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Affiliation(s)
- X Liu
- Department of Oral Surgery, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, and Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai, China
| | - S Wan
- Department of Oral Surgery, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, and Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai, China
| | - A Abdelrehem
- Department of Craniomaxillofacial and Plastic Surgery, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
| | - M Chen
- Department of Oral Surgery, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, and Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai, China
| | - C Yang
- Department of Oral Surgery, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, and Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai, China.
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22
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Wei X, Hu X, Yu R, Wan S, Jiang T. Efficient Total Synthesis of Lissodendrin B, 2-Aminoimidazole Marine Alkaloids Isolated from Lissodendoryx (Acanthodoryx) Fibrosa. Mar Drugs 2019; 18:md18010036. [PMID: 31906213 PMCID: PMC7024156 DOI: 10.3390/md18010036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 12/19/2019] [Accepted: 12/20/2019] [Indexed: 02/02/2023] Open
Abstract
Lissodendrin B is a 2-aminoimidazole alkaloid bearing a (p-hydroxyphenyl) glyoxal moiety that was isolated from the Indonesian sponge Lissodendoryx (Acanthodoryx) fibrosa. We reported the first efficient total synthesis of Lissodendrin B. The precursor 4,5-disubstituted imidazole was obtained through Suzuki coupling and Sonogashira coupling reactions from 4-iodoimidazole. C2-azidation and reduction of the azide then provided the core structures of Lissodendrin B. Subsequent triple-bond oxidation, demethylation, and deacetylation gave the final product. The synthesis approach consists of ten steps with an overall yield of 1.1% under mild reaction conditions, and it can be applied for future analog synthesis and biological studies.
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Affiliation(s)
- Xianfeng Wei
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road 5, Qingdao 266003, China; (X.W.); (R.Y.); (S.W.)
| | - Xuelong Hu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road 5, Qingdao 266003, China; (X.W.); (R.Y.); (S.W.)
| | - Rilei Yu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road 5, Qingdao 266003, China; (X.W.); (R.Y.); (S.W.)
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003, China
| | - Shengbiao Wan
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road 5, Qingdao 266003, China; (X.W.); (R.Y.); (S.W.)
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003, China
| | - Tao Jiang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road 5, Qingdao 266003, China; (X.W.); (R.Y.); (S.W.)
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003, China
- Correspondence: ; Tel.: +86-532-82033054
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23
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Yang J, Sun H, Wan S, Mamtawla G, Gao X, Zhang L, Wang X, Li J. SUN-PO028: Parenteral Nutrition is One of the Most Significant Risk Factors for Nosocomial Infections in Adult Patients with Intestinal Failure. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32663-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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24
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Wan S, Yang J, Wang X. MON-PO459: Superior Mesenteric Artery Syndrome Improved by Enteral Nutritional Therapy: A Retrospective Study in a Single Institution. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32292-7] [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: 11/25/2022]
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25
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Ho AMH, Mizubuti GB, Ho AK, Wan S, Sydor D, Chung DC. Success rate of resuscitation after out-of-hospital cardiac arrest. Hong Kong Med J 2019; 25:254-256. [PMID: 31182676 DOI: 10.12809/hkmj187596] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- A M H Ho
- Department of Anesthesiology and Perioperative Medicine, Queen's University, Canada
| | - G B Mizubuti
- Department of Anesthesiology and Perioperative Medicine, Queen's University, Canada
| | - A K Ho
- Department of Oncology, The Christie NHS Foundation Trust, Manchester, United Kingdom
| | - S Wan
- Division of Cardiac Surgery, Department of Surgery, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - D Sydor
- Department of Anesthesiology and Perioperative Medicine, Queen's University, Canada
| | - D C Chung
- Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Shatin, Hong Kong
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26
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Luo D, Yi Y, Peng K, Liu T, Yang J, Liu S, Zhao W, Qu X, Yu W, Gu Y, Wan S. Oridonin derivatives as potential anticancer drug candidates triggering apoptosis through mitochondrial pathway in the liver cancer cells. Eur J Med Chem 2019; 178:365-379. [PMID: 31200238 DOI: 10.1016/j.ejmech.2019.06.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [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: 04/05/2019] [Revised: 05/20/2019] [Accepted: 06/03/2019] [Indexed: 12/19/2022]
Abstract
The biological function of the natural ent-kaurene diterpenoid isolated from genus Isodon, oridonin, has been intensively studied. However, its mechanism studies and clinical applications were hampered by its moderate biological activities. In order to enlarge the applied range of oridonin and explore its mechanism of action, a series of derivatives were designed and synthesized based on the structure of oridonin. Some of the derivatives were significantly more potent than oridonin against four cancer cell lines. Especially, the most potent compound 20 markedly inhibited the proliferation of well differentiated HepG2 and poorly differentiated PLC/PRF/5 cells, with IC50 values as low as 1.36 μM and 0.78 μM respectively, while the IC50 values of oridonin are 8.12 μM and 7.41 μM. We found that compound 20 inhibited liver cancer cell proliferation via arresting cell cycle at G1 phase. Moreover, it induced liver cancer cell apoptosis by decreasing the mitochondrial membrane potential, increasing intracellular reactive oxygen species level and inducing the expression of apoptosis-related proteins. Furthermore, compound 20 significantly inhibited growth of PLC/PRF/5 xenograft tumors in nude mice and had no observable toxic effect. Altogether, these results indicated that compound 20 is a promising lead for liver cancer therapeutics.
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Affiliation(s)
- Dongdong Luo
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, and Yushan Road 5, Qingdao, 266003, China
| | - Yujiao Yi
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, and Yushan Road 5, Qingdao, 266003, China
| | - Kai Peng
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, and Yushan Road 5, Qingdao, 266003, China
| | - Tangrong Liu
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, and Yushan Road 5, Qingdao, 266003, China
| | - Jiayu Yang
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, and Yushan Road 5, Qingdao, 266003, China
| | - Shan Liu
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, and Yushan Road 5, Qingdao, 266003, China
| | - Wanzhou Zhao
- The Nanjing Han & Zaenker Cancer Institute (NHZCI), Nanjing OGpharma Co. Ltd., Nanjing, 210036, China
| | - Xianjun Qu
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China
| | - Wengong Yu
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, and Yushan Road 5, Qingdao, 266003, China
| | - Yuchao Gu
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, and Yushan Road 5, Qingdao, 266003, China.
| | - Shengbiao Wan
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, and Yushan Road 5, Qingdao, 266003, China.
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27
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Ta D, Tieu A, Zhu H, Le M, Ta T, Tran V, Wan S. Physical and chemical insights into molecular adsorption of copolymer’s monomers on Rutile surface. Chem Phys 2019. [DOI: 10.1016/j.chemphys.2018.12.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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28
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Xu X, Xu Q, Chen F, Shi J, Liu Y, Chu Y, Wan S, Jiang T, Yu R. Role of the disulfide bond on the structure and activity of μ-conotoxin PIIIA in the inhibition of Na V1.4. RSC Adv 2019; 9:668-674. [PMID: 35517619 PMCID: PMC9059534 DOI: 10.1039/c8ra06103c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 10/23/2018] [Indexed: 12/30/2022] Open
Abstract
μ-Conotoxin PIIIA, a peptide toxin isolated from Conus purpurascens, blocks the skeletal muscle voltage-gated sodium channel NaV1.4 with significant potency. PIIIA has three disulfide bonds, which contribute largely to its highly constrained and stable structure. In this study, a combination of experimental studies and computational modeling were performed to assess the effects of deletion of the disulfide bonds on the structure and activity of PIIIA. The final results indicate that the three disulfide bonds of PIIIA are required to produce the effective inhibition of NaV1.4, and the removal of any one of the disulfide bonds significantly reduces its binding affinity owing to secondary structure variation, among which the Cys11-Cys22 is the most important for sustaining the structure and activity of PIIIA.
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Affiliation(s)
- Xiaoxiao Xu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China Qingdao 266003 China +86-138-6986-2306
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology Qingdao 266003 China
| | - Qingliang Xu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China Qingdao 266003 China +86-138-6986-2306
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology Qingdao 266003 China
| | - Fangling Chen
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China Qingdao 266003 China +86-138-6986-2306
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology Qingdao 266003 China
| | - Juan Shi
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China Qingdao 266003 China +86-138-6986-2306
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology Qingdao 266003 China
| | - Yuntian Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China Qingdao 266003 China +86-138-6986-2306
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology Qingdao 266003 China
| | - Yanyan Chu
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology Qingdao 266003 China
| | - Shengbiao Wan
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China Qingdao 266003 China +86-138-6986-2306
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology Qingdao 266003 China
| | - Tao Jiang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China Qingdao 266003 China +86-138-6986-2306
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology Qingdao 266003 China
| | - Rilei Yu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China Qingdao 266003 China +86-138-6986-2306
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology Qingdao 266003 China
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29
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Wan S, Zhang L, Quan Y, Wei K. Correction to 'Resveratrol-loaded PLGA nanoparticles: enhanced stability, solubility and bioactivity of resveratrol for non-alcoholic fatty liver disease therapy'. R Soc Open Sci 2019; 6:182173. [PMID: 30800409 PMCID: PMC6366170 DOI: 10.1098/rsos.182173] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
[This corrects the article DOI: 10.1098/rsos.181457.].
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30
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Hou Z, Wan S, Li S, Wang K, Liu J, Yan J, Liu B, Yang Y. Radiomics Analysis Using Contrast-Enhanced CT: Predict Treatment Response to Pulsed Low Dose Rate Radiation Therapy in Gastric Carcinoma with Peritoneal Cavity Metastasis. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.713] [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: 11/17/2022]
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31
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Shi J, So LY, Chen F, Liang J, Chow HY, Wong KY, Wan S, Jiang T, Yu R. Influences of disulfide connectivity on structure and antimicrobial activity of tachyplesin I. J Pept Sci 2018; 24:e3087. [PMID: 29870123 DOI: 10.1002/psc.3087] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 04/06/2018] [Accepted: 04/10/2018] [Indexed: 12/15/2022]
Abstract
Tachyplesin I is a potent antimicrobial peptide with broad spectrum of antimicrobial activity. It has 2 disulfide bonds and can form 3 disulfide bond isomers. In this study, the structure and antimicrobial activity of 3 tachyplesin I isomers (tachyplesin I, 3C12C, 3C7C) were investigated using molecular dynamic simulations, circular dichroism structural study, as well as antimicrobial activity and hemolysis assay. Our results suggest that in comparison to the native peptide, the 2 isomers (3C12C, 3C7C) have substantial structural and activity variations. The native peptide is in the ribbon conformation, while 3C12C and 3C7C possess remarkably different secondary structures, which are referred as "globular" and "beads" isomers, respectively. The substantially decreased hemolysis effects for these 2 isomers is accompanied by significantly decreased anti-gram-positive bacterial activity.
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Affiliation(s)
- Juan Shi
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, China
| | - Lok-Yan So
- Department of Applied Biology and Chemical Technology and the State Key Laboratory of Chirosciences, The Hong Kong Polytechnic University, Hong Kong
| | - Fangling Chen
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, China
| | - Jiazhen Liang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, China
| | - Ho-Yin Chow
- Department of Applied Biology and Chemical Technology and the State Key Laboratory of Chirosciences, The Hong Kong Polytechnic University, Hong Kong
| | - Kwok-Yin Wong
- Department of Applied Biology and Chemical Technology and the State Key Laboratory of Chirosciences, The Hong Kong Polytechnic University, Hong Kong
| | - Shengbiao Wan
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, China
| | - Tao Jiang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, China
| | - Rilei Yu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266003, China
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32
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Jiang H, Dong X, Jin X, Zhu D, Yin R, Yu R, Wan S, Zhang L, Jiang T. Front Cover: Efficient Synthesis of Five Types of Heterocyclic Compounds via Intramolecular Elimination Using Ultrasound-Static Heating Technique (Chem. Asian J. 16/2018). Chem Asian J 2018. [DOI: 10.1002/asia.201800916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Hongfei Jiang
- Key Laboratory of Marine Drugs, Chinese; Ministry of Education; School of Medicine and Pharmacy; Ocean University of China; Qingdao 266003 P. R. China
| | - Xueyang Dong
- Key Laboratory of Marine Drugs, Chinese; Ministry of Education; School of Medicine and Pharmacy; Ocean University of China; Qingdao 266003 P. R. China
| | - Xin Jin
- Key Laboratory of Marine Drugs, Chinese; Ministry of Education; School of Medicine and Pharmacy; Ocean University of China; Qingdao 266003 P. R. China
| | - Danyang Zhu
- Key Laboratory of Marine Drugs, Chinese; Ministry of Education; School of Medicine and Pharmacy; Ocean University of China; Qingdao 266003 P. R. China
| | - Ruijuan Yin
- Key Laboratory of Marine Drugs, Chinese; Ministry of Education; School of Medicine and Pharmacy; Ocean University of China; Qingdao 266003 P. R. China
- Laboratory for Marine Drugs and Bioproducts; Qingdao National Laboratory for Marine Science and Technology; Qingdao 266237 P. R. China
| | - Rilei Yu
- Key Laboratory of Marine Drugs, Chinese; Ministry of Education; School of Medicine and Pharmacy; Ocean University of China; Qingdao 266003 P. R. China
- Laboratory for Marine Drugs and Bioproducts; Qingdao National Laboratory for Marine Science and Technology; Qingdao 266237 P. R. China
| | - Shengbiao Wan
- Key Laboratory of Marine Drugs, Chinese; Ministry of Education; School of Medicine and Pharmacy; Ocean University of China; Qingdao 266003 P. R. China
| | - Lijuan Zhang
- Institute of Cerebrovascular Diseases; Affiliated Hospital of Qingdao University Medical College; Qingdao 266500 P. R. China
| | - Tao Jiang
- Key Laboratory of Marine Drugs, Chinese; Ministry of Education; School of Medicine and Pharmacy; Ocean University of China; Qingdao 266003 P. R. China
- Laboratory for Marine Drugs and Bioproducts; Qingdao National Laboratory for Marine Science and Technology; Qingdao 266237 P. R. China
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Wan S, Fu X, Ji Y, Li M, Shi X, Wang Y. FAK- and YAP/TAZ dependent mechanotransduction pathways are required for enhanced immunomodulatory properties of adipose-derived mesenchymal stem cells induced by aligned fibrous scaffolds. Biomaterials 2018; 171:107-117. [DOI: 10.1016/j.biomaterials.2018.04.035] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 04/15/2018] [Indexed: 01/14/2023]
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34
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Jiang H, Dong X, Jin X, Zhu D, Yin R, Yu R, Wan S, Zhang L, Jiang T. Efficient Synthesis of Five Types of Heterocyclic Compounds via Intramolecular Elimination Using Ultrasound-Static Heating Technique. Chem Asian J 2018; 13:2009-2013. [PMID: 29858560 DOI: 10.1002/asia.201800682] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 05/02/2018] [Revised: 05/29/2018] [Indexed: 11/10/2022]
Abstract
An experimental technique, ultrasound-static heating, has been developed for the efficient synthesis of heterocyclic compounds. The technique involves ultrasonic irradiation and static heating processes. First, the ultrasonic irradiation process is performed to form an intermediate of the heterocyclic compound under mild conditions and the subsequent static heating process (heating the intermediate under solvent-free conditions without stirring) produces the target heterocyclic compounds via intramolecular elimination.
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Affiliation(s)
- Hongfei Jiang
- Key Laboratory of Marine Drugs, Chinese, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, P. R. China
| | - Xueyang Dong
- Key Laboratory of Marine Drugs, Chinese, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, P. R. China
| | - Xin Jin
- Key Laboratory of Marine Drugs, Chinese, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, P. R. China
| | - Danyang Zhu
- Key Laboratory of Marine Drugs, Chinese, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, P. R. China
| | - Ruijuan Yin
- Key Laboratory of Marine Drugs, Chinese, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, P. R. China
| | - Rilei Yu
- Key Laboratory of Marine Drugs, Chinese, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, P. R. China
| | - Shengbiao Wan
- Key Laboratory of Marine Drugs, Chinese, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, P. R. China
| | - Lijuan Zhang
- Institute of Cerebrovascular Diseases, Affiliated Hospital of Qingdao University Medical College, Qingdao, 266500, P. R. China
| | - Tao Jiang
- Key Laboratory of Marine Drugs, Chinese, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, P. R. China
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Worlikar T, Vlaisavljevich E, Gerhardson T, Wan S, Kuruvilla S, Ives K, Greve J, Hall T, Welling T, Lee F, Xu Z. Abstract No. 495 Non-invasive liver tumor ablation using histotripsy in an in vivo subcutaneous murine hepatocellular carcinoma model. J Vasc Interv Radiol 2018. [DOI: 10.1016/j.jvir.2018.01.540] [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: 11/15/2022] Open
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Le MH, Tieu AK, Zhu H, Ta DT, Yu H, Ta TTH, Tran VN, Wan S. Depolymerization of sodium polyphosphates on an iron oxide surface at high temperature. Phys Chem Chem Phys 2018; 20:7819-7835. [PMID: 29505041 DOI: 10.1039/c7cp08364e] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Density functional theory (DFT) and first principles molecular dynamics (FPMD) studies of pyrophosphate cluster Na4P2O7 and triphosphate cluster Na5P3O10 absorbed and decomposed on an Fe2O3(0001) surface have been conducted. Comparative analyses of the structure properties and adsorption processes during the simulation at elevated temperature have been carried out. The results depict the key interactions including the covalent P-O bonds, pure ionic Na-O or Fe-O interactions. The iron oxide surface plays an important role in the bridging bond decomposition scheme which can both promote and suppress phosphate depolymerization. It is found that the chain length of polyphosphates does not have considerable effects on the decomposition of phosphate clusters. This study provides detailed insights into the interaction of a phosphate cluster on an iron oxide surface at high temperature, and in particular the depolymerization/polymerization of an inorganic phosphate glass lubricant, which has an important behavior under hot metal forming conditions.
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Affiliation(s)
- M H Le
- School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Northfield Avenue, Wollongong, NSW 2522, Australia.
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Abstract
OBJECTIVES To compare the effects of high-fat diet (HFD) and high-fructose diet (HFrD) on bone metabolism at different time points, dynamically observe the bone histology and femur trabecular micro-architecture, and analyze the underlying mechanisms. METHODS Sixty -Five male 6- to 7-week-old C57BL/6J mice were given HFD, HFrD, or standard diets (SD) for 8, 16, and 24 weeks. Micro-computed tomography (μCT) and bone histology were used to measure bone mass and trabecular micro-structure. Quantitative real-time polymerase chain reaction (qRT-PCR) was used to determine the expression of genes related to bone and lipid metabolisms. RESULTS Compared to SD mice, femoral trabecular bone mass was significantly increased in both HFrD mice and HFD mice at 8 weeks, it continued to be higher in HFrD mice at 16 and 24 weeks with the highest level at 16 weeks, but it was significantly decreased in HFD mice at 16 and 24 weeks. HFD mice showed more epididymal fat accumulation than HFrD mice. mRNA expression of Runx2 was up-regulated at 8 and 16 weeks, but down-regulated at 24 weeks similarly in both HFrD mice and HFD mice. mRNA expression of MMP9 and CTSK was up-regulated at 8 and 16 weeks in HFD mice, but down-regulated at 24 weeks in both HFrD mice and HFD mice. CONCLUSIONS Our data indicated that the HFrD and HFD had different modulating effects on bone mass. After short-term feeding, both HFrD and HFD showed positive effects on bone mass; however, after long-term feeding, bone mass was decreased in HFD mice. In contrast, the bone mass was first increased and then decreased in the HFrD mice. On the basis of these findings, we speculated that chronic consumption of fat and fructose would exert detrimental effects on bone mass which might a combination action of body mass, fat mass, and bone formation/bone resorption along with proinflammatory factor and bone marrow environment.
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Affiliation(s)
- L Tian
- Xijie Yu, MD, PhD. Laboratory of Endocrinology and Metabolism, Department of Endocrinology, West China Hospital, Sichuan University, No. 37 Guoxue Xiang, 610041 Chengdu, P.R. China, E-mail: or , Tel.: +86-28-8542-2362, Fax: +86-28-8542-3459
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Macdonald AS, Macduff C, Loudon D, Wan S. Evaluation of a visual tool co-developed for training hospital staff on the prevention and control of the spread of healthcare associated infections. Infect Dis Health 2017; 22:105-116. [PMID: 31862086 DOI: 10.1016/j.idh.2017.06.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 05/19/2017] [Accepted: 06/04/2017] [Indexed: 11/15/2022]
Abstract
BACKGROUND Staff training in infection prevention and control (IPC) across hospital settings has a crucial role in reducing the incidence of healthcare associated infections (HAIs). However the application of dynamic visualisation approaches in this context is under-developed, with very few in-depth evaluation studies of related processes and impacts. METHODS A prototype training tablet app for hospital staff, using interactive visuals was developed and evaluated. To demonstrate different pathogen behaviour, dynamic visualisations of norovirus, Clostridium difficile, and MRSA were developed in relation to location, survival and transmission within a virtual hospital ward model using evidence-based microbiological and staff behavioural data. A three-stage evaluation process was designed, involving a mixed sample of UK National Health Service staff (doctors, nurses and domestic staff, n = 150). RESULTS Participants reported improved awareness and understanding of the pathogens responsible for HAI, the types of information relevant for different staff cohorts, those aspects of the visualisations which worked well and those which were prone to cause misunderstandings, and suggestions for further development and improvement. The tool appeared to offer staff a new perspective on pathogens, being able to 'see' them contextualised in the virtual ward, making them seem more real. CONCLUSION Results showed the benefits of a detailed co-development process and a more contextualised understanding of the potential for visual apps to be used in IPC training.
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Affiliation(s)
- A S Macdonald
- The Glasgow School of Art, 167 Renfrew Street, Glasgow G3 6RQ, Scotland, UK.
| | - C Macduff
- The Glasgow School of Art, 167 Renfrew Street, Glasgow G3 6RQ, Scotland, UK.
| | - D Loudon
- The Glasgow School of Art, 167 Renfrew Street, Glasgow G3 6RQ, Scotland, UK.
| | - S Wan
- The Glasgow School of Art, 167 Renfrew Street, Glasgow G3 6RQ, Scotland, UK.
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Whitehouse W, Quimby J, Wan S, Monaghan K, Robbins R, Trepanier LA. Urinary F 2 -Isoprostanes in Cats with International Renal Interest Society Stage 1-4 Chronic Kidney Disease. J Vet Intern Med 2017; 31:449-456. [PMID: 28160524 PMCID: PMC5354001 DOI: 10.1111/jvim.14634] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 10/20/2016] [Accepted: 11/15/2016] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND F2 -isoprostanes, a biomarker of oxidant injury, increase with advancing chronic kidney disease (CKD) in humans. In cats, the relationship between CKD and oxidative stress is poorly understood. OBJECTIVES To determine whether cats with advancing CKD have increasing urinary F2 -isoprostanes. ANIMALS Control cats without evidence of CKD (≥6 years old; n = 11), and cats with IRIS stage 1 (n = 8), 2 (n = 38), 3 (n = 21), and 4 (n = 10) CKD. METHODS This was a prospective observational study. Urinary F2 -isoprostanes (specifically free 15-F2t -isoprostanes) normalized to urine creatinine (IsoPs) were compared among groups and tested for correlations with blood pressure, proteinuria, serum creatinine concentration, and urine specific gravity. The IsoPs also were compared between cats with and without hypertension or proteinuria, and in cats fed predominantly standard versus renal diets. RESULTS Urinary IsoPs were increased, but not significantly, in cats with stage 1 CKD (median 263 pg/mg creatinine; range, 211-380) compared to controls (182 pg/mg; range, 80-348) and decreased significantly from stage 1 through advancing CKD (stage 2, 144 pg/mg; range, 49-608; stage 3, 102 pg/mg; range, 25-158; stage 4, 67 pg/mg; range, 26-117; P < .01). Urinary IsoPs were inversely correlated with serum creatinine (r = -0.66, P < .0001). CONCLUSION AND CLINICAL IMPORTANCE Urinary IsoPs are significantly higher in early CKD (stage 1) compared to cats with more advanced CKD. Additional studies are warranted to characterize oxidative stress in cats with stage 1 CKD and determine whether early antioxidant treatments have a protective effect on CKD progression.
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Affiliation(s)
- W Whitehouse
- Department of Medical Sciences, University of Wisconsin-Madison, Madison, WI
| | - J Quimby
- College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO
| | - S Wan
- Department of Medical Sciences, University of Wisconsin-Madison, Madison, WI
| | - K Monaghan
- Department of Medical Sciences, University of Wisconsin-Madison, Madison, WI
| | - R Robbins
- Department of Medical Sciences, University of Wisconsin-Madison, Madison, WI
| | - L A Trepanier
- Department of Medical Sciences, University of Wisconsin-Madison, Madison, WI
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Cottrell JJ, Liu F, Wan S, Wijesiriwardana UA, DiGiacomo K, Kelly F, Celi P, Leury B, Clarke IJ, Dunshea FR. The effect of heat stress on respiratory alkalosis, blood acid base balance and insulin sensitivity in cinnamon supplemented pigs. Anim Prod Sci 2017. [DOI: 10.1071/anv57n12ab043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Pacey S, Blackhall F, Garcia-Corbacho J, Lipplaa A, Fusi A, Kumar S, Hategan M, Derham J, Laviste G, Halford S, Foxton C, McLeod R, Wan S, Talbot D. A phase I dose escalation study of the tolerability of the oral VEGFR and EGFR inhibitor vandetanib in combination with the oral MEK1/2 inhibitor selumetinib in solid tumors. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw383.61] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Zhang R, Chen S, Wu G, Wan S, Jiang T. Cover Image. J Heterocycl Chem 2016. [DOI: 10.1002/jhet.2780] [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: 11/08/2022]
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Ho AMH, Karmakar MK, Ng SK, Wan S, Ng CSH, Wong RHL, Chan SKC, Joynt GM. Local Anaesthetic Toxicity after Bilateral Thoracic Paravertebral Block in Patients Undergoing Coronary Artery Bypass Surgery. Anaesth Intensive Care 2016; 44:615-9. [DOI: 10.1177/0310057x1604400502] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We conducted a small pilot observational study of the effects of bilateral thoracic paravertebral block (BTPB) as an adjunct to perioperative analgesia in coronary artery bypass surgery patients. The initial ropivacaine dose prior to induction of general anaesthesia was 3 mg/kg, which was followed at the end of the surgery by infusion of ropivacaine 0.25% 0.1 ml/kg/hour on each side (e.g. total 35 mg/hour for a 70 kg person). The BTPB did not eliminate the need for supplemental opioids after CABG in the eight patients studied. Moreover, in spite of boluses that were within the manufacturer's recommendation for epidural and major nerve blocks, and an infusion rate that was only slightly higher than what appeared to be safe for epidural infusion, potentially toxic total plasma ropivacaine concentrations were common. We also could not exclude the possibility that the high ropivacaine concentrations were contributing to postoperative mental state changes in the postoperative period. Also, one patient developed local anaesthetic toxicity after the bilateral paravertebral dose. As a result, the study was terminated early after four days. The question of whether paravertebral block confers benefits in cardiac surgery remains unanswered. However, we believe that the bolus dosage and the injection rate we used for BTPB were both too high, and caution other clinicians against the use of these doses. Future studies on the use of BTPB in cardiac surgery patients should include reduced ropivacaine doses injected over longer periods.
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Affiliation(s)
- A. M.-H. Ho
- Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, Hong Kong SAR; Department of Anesthesiology and Perioperative Medicine, Queen's University, Kingston, Ontario, Canada
| | - M. K. Karmakar
- Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, Hong Kong SAR
| | - S. K. Ng
- Department of Anaesthesia and Intensive Care, Prince of Wales Hospital, Shatin, NT, Hong Kong SAR
| | - S. Wan
- Department of Surgery, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR
| | - C. S. H. Ng
- Department of Surgery, Prince of Wales Hospital, Shatin, NT, Hong Kong SAR
| | - R. H. L. Wong
- Department of Surgery, Prince of Wales Hospital, Shatin, NT, Hong Kong SAR
| | - S. K. C. Chan
- Department of Anaesthesia and Intensive Care, Prince of Wales Hospital, Shatin, NT, Hong Kong SAR
| | - G. M. Joynt
- Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, Hong Kong SAR
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Affiliation(s)
- Renshuai Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy; Ocean University of China; Qingdao 266003 China
- Dongying Tiandong Pharmaceutical Co., Ltd; No.1236, Nan-er road Dongying Shandong China
| | - Shaopeng Chen
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy; Ocean University of China; Qingdao 266003 China
- Dongying Tiandong Pharmaceutical Co., Ltd; No.1236, Nan-er road Dongying Shandong China
| | - Guanzhao Wu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy; Ocean University of China; Qingdao 266003 China
- Dongying Tiandong Pharmaceutical Co., Ltd; No.1236, Nan-er road Dongying Shandong China
| | - Shengbiao Wan
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy; Ocean University of China; Qingdao 266003 China
- Dongying Tiandong Pharmaceutical Co., Ltd; No.1236, Nan-er road Dongying Shandong China
| | - Tao Jiang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy; Ocean University of China; Qingdao 266003 China
- Dongying Tiandong Pharmaceutical Co., Ltd; No.1236, Nan-er road Dongying Shandong China
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Tong S, Zhang M, Wang S, Yin R, Yu R, Wan S, Jiang T, Zhang L. Isothiouronium modification empowers pyrimidine-substituted curcumin analogs potent cytotoxicity and Golgi localization. Eur J Med Chem 2016; 123:849-857. [PMID: 27543879 DOI: 10.1016/j.ejmech.2016.07.071] [Citation(s) in RCA: 16] [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: 03/01/2016] [Revised: 07/18/2016] [Accepted: 07/28/2016] [Indexed: 10/21/2022]
Abstract
Most of protein post-translational modifications occur in the Golgi and many human diseases are associated with abnormal Golgi function or improper post translational modifications of proteins in the Golgi. In this study, we designed and synthesized 4 × 6 series of novel isothiouronium-modified (E,E)-4,6-bis(styryl)-pyrimidine analogs and found that they localized at the Golgi as visualized by the intrinsic fluorescence of the analogs. The isothiouronium-modified analogs had potent cytotoxicity in both normal (Chinese Hamster Ovary or CHO) and cancer cells. Furthermore, permethylated isothiouronium-modified analogs showed cancer cell-selective cytotoxicity. The molecular mechanisms underlying Golgi localization of isothiouronium-modified compounds were investigated using 7 CHO and 4 human cancer cell lines and the results indicated that the compounds had binding partners in the Golgi. Thus, isothiouronium-modified analogs might be promising anticancer agents, novel Golgi staining reagents, and useful research tools for studying Golgi functions in normal or cancer cells and in Golgi-related human diseases.
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Affiliation(s)
- Sheng Tong
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Meng Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Shixi Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Ruijuan Yin
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Rilei Yu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Shengbiao Wan
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Tao Jiang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China.
| | - Lijuan Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China; Institute of Cerebrovascular Diseases, Affiliated Hospital of Qingdao University, Qingdao, 266003, China.
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46
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Affiliation(s)
- Shixu Liu
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Pharmacy; Ocean University of China; Qingdao 266003 China
| | - Junxiu Meng
- Nowa Pharmceuticals Co, Ltd.; Suzhou 215121 China
| | - Wei Zhang
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Pharmacy; Ocean University of China; Qingdao 266003 China
| | - Shengbiao Wan
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Pharmacy; Ocean University of China; Qingdao 266003 China
| | - Tao Jiang
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Pharmacy; Ocean University of China; Qingdao 266003 China
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Zhang R, Chen S, Zhang X, Yu R, Wan S, Geng M, Jiang T. Synthesis and evaluation of novel non-covalent binding quinazoline glycoside derivatives targeting the L858R and T790M variants of EGFR. RSC Adv 2016. [DOI: 10.1039/c6ra06818a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of novel quinazoline glycoside derivatives were designed, synthesized, and evaluated for their inhibition activities against EGFR-WT, EGFR/L858R/T790M, and skin epidermoid carcinoma cell line (A431).
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Affiliation(s)
- Renshuai Zhang
- Key Laboratory of Marine Drugs
- The Ministry of Education of China
- School of Medicine and Pharmacy
- Ocean University of China
- Qingdao 266003
| | - Shaopeng Chen
- Key Laboratory of Marine Drugs
- The Ministry of Education of China
- School of Medicine and Pharmacy
- Ocean University of China
- Qingdao 266003
| | - Xiaowei Zhang
- Division of Anti-tumor Pharmacology
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
| | - Rilei Yu
- Key Laboratory of Marine Drugs
- The Ministry of Education of China
- School of Medicine and Pharmacy
- Ocean University of China
- Qingdao 266003
| | - Shengbiao Wan
- Key Laboratory of Marine Drugs
- The Ministry of Education of China
- School of Medicine and Pharmacy
- Ocean University of China
- Qingdao 266003
| | - Meiyu Geng
- Division of Anti-tumor Pharmacology
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
| | - Tao Jiang
- Key Laboratory of Marine Drugs
- The Ministry of Education of China
- School of Medicine and Pharmacy
- Ocean University of China
- Qingdao 266003
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Winter R, Fazlinezhad A, Martins Fernandes S, Pellegrino M, Iriart X, Moustafa S, Stolfo D, Bieseviciene M, Patel S, Vriz O, Sarvari SI, Santos M, Berezin A, Stoebe S, Benyounes Iglesias N, De Chiara B, Soliman A, Oni O, Ricci F, Tumasyan LR, Kim KH, Popa BA, Yiangou K, Olsen RH, Cacicedo A, Monti L, Holte E, Orlic D, Trifunovic D, Nucifora G, Casalta AC, Cavalcante JL, Keramida K, Calin A, Almeida Morais L, Bandera F, Galli E, Kamal HM, Leite L, Polte CL, Martinez Santos P, Jin CN, Generati G, Reali M, Kalcik M, Cacicedo A, Nascimento H, Ferreiro Quero C, Kazum S, Madeira S, Villagra JM, Muraru D, Gobbo M, Generati G, D'andrea A, Azevedo O, Nucifora G, Cruz I, Lozano Granero VC, Stampfli SF, Marketou M, Bento D, Mohty D, Hernandez Jimenez V, Gascuena R, Ingvarsson A, Cameli M, Werther Evaldsson A, Greiner S, Michelsen MM, El Eraky AZZA, Kamal HM, D'ascenzi F, Spinelli L, Stojanovic S, Mincu RI, Vindis D, Mantovani F, Yi JE, Styczynski G, Battah AHMED, O'driscoll J, Generati G, Velasco Del Castillo S, Voilliot D, Scali MC, Garcia Campos A, Opitz B, Herold IHF, Veiga CESAR, Santos Furtado M, Khan UM, Leite L, Leite L, Leite L, Keramida K, Molnar AA, Rio P, Huang MS, Papadopoulos C, Venneri L, Onut R, Casas Rojo E, Bayat F, Aggeli C, Ben Kahla S, Abid L, Choi JH, Barreiro Perez M, Lindqvist P, Sheehan F, Vojdanparast M, Nezafati P, Teixeira R, Generati G, Bandera F, Labate V, Alfonzetti E, Guazzi M, Dinet ML, Jalal Z, Cochet H, Thambo JB, Ho TH, Shah P, Murphy K, Nelluri BK, Lee H, Wilansky S, Mookadam F, Tonet E, Merlo M, Barbati G, Gigli M, Pinamonti B, Ramani F, Zecchin M, Sinagra G, Vaskelyte JJ, Mizariene V, Lesauskaite V, Verseckaite R, Karaliute R, Jonkaitiene R, Li L, Craft M, Danford D, Kutty S, Pellegrinet M, Zito C, Carerj S, Di Bello V, Cittadini A, Bossone E, Antonini-Canterin F, Rodriguez M, Sitges M, Sepulveda-Martinez A, Gratacos E, Bijnens B, Crispi F, Leite L, Martins R, Baptista R, Barbosa A, Ribeiro N, Oliveira A, Castro G, Pego M, Samura T, Kremzer A, Tarr A, Pfeiffer D, Hagendorff A, Van Der Vynckt C, Gout O, Devys JM, Cohen A, Musca F, D'angelo L, Cipriani MG, Parolini M, Rossi A, Santambrogio GM, Russo C, Giannattasio C, Moreo A, Moharram M, Gamal A, Reda A, Adebiyi A, Aje A, Aquilani R, Dipace G, Bucciarelli V, Bianco F, Miniero E, Scipioni G, De Caterina R, Gallina S, Adamyan KG, Chilingaryan AL, Tunyan LG, Cho JY, Yoon HJ, Ahn Y, Jeong MH, Cho JG, Park JC, Popa A, Cerin G, Azina CH, Yiangou A, Georgiou C, Zitti M, Ioannides M, Chimonides S, Pedersen LR, Snoer M, Christensen TE, Ghotbi AA, Hasbak P, Kjaer A, Haugaard SB, Prescott E, Velasco Del Castillo S, Gomez Sanchez V, Anton Ladislao A, Onaindia Gandarias J, Rodriguez Sanchez I, Jimenez Melo O, Garcia Cuenca E, Zugazabeitia Irazabal G, Romero Pereiro A, Nardi B, Di Giovine G, Malanchini G, Scardino C, Balzarini L, Presbitero P, Gasparini GL, Tesic M, Zamaklar-Trifunovic D, Vujisic-Tesic B, Borovic M, Milasinovic D, Zivkovic M, Kostic J, Belelsin B, Ostojic M, Krljanac G, Savic L, Asanin M, Aleksandric S, Petrovic M, Zlatic N, Lasica R, Mrdovic I, Muser D, Zanuttini D, Tioni C, Bernardi G, Spedicato L, Proclemer A, Galli E, Szymanski C, Salaun E, Lavoute C, Haentjens J, Tribouilloy C, Mancini J, Donal E, Habib G, Delgado-Montero A, Dahou A, Caballero L, Rijal S, Gorcsan J, Monin JL, Pibarot P, Lancellotti P, Kouris N, Kostopoulos V, Giannaris V, Trifou E, Markos L, Mihalopoulos A, Mprempos G, Olympios CD, Mateescu AD, Rosca M, Beladan CC, Enache R, Gurzun MM, Varga P, Calin C, Ginghina C, Popescu BA, Galrinho A, Branco L, Gomes V, Timoteo AT, Daniel P, Rodrigues I, Rosa S, Fragata J, Ferreira R, Generati G, Pellegrino M, Carbone F, Labate V, Alfonzetti E, Guazzi M, Leclercq C, Samset E, Donal E, Oraby MA, Eleraky AZ, Yossuef MA, Baptista R, Teixeira R, Ribeiro N, Oliveira AP, Barbosa A, Castro G, Martins R, Elvas L, Pego M, Gao SA, Lagerstrand KM, Johnsson ÅA, Bech-Hanssen O, Vilacosta I, Batlle Lopez E, Sanchez Sauce B, Jimenez Valtierra J, Espana Barrio E, Campuzano Ruiz R, De La Rosa Riestra A, Alonso Bello J, Perez Gonzalez F, Wan S, Sun JP, Lee AP, Bandera F, Pellegrino M, Carbone F, Labate V, Alfonzetti E, Guazzi M, Cimino S, Salatino T, Silvetti E, Mancone M, Pennacchi M, Giordano A, Sardella G, Agati L, Yesin M, Gunduz S, Gursoy MO, Astarcioglu MA, Karakoyun S, Bayam E, Cersit S, Ozkan M, Velasco Del Castillo S, Gomez Sanchez V, Anton Ladislao A, Onaindia Gandarias J, Rodriguez Sanchez I, Jimenez Melo O, Quintana Razcka O, Romero Pereiro A, Zugazabeitia Irazabal G, Braga M, Flores L, Ribeiro V, Melao F, Dias P, Maciel MJ, Bettencourt P, Mesa Rubio MD, Ruiz Ortiz M, Delgado Ortega M, Sanchez Fernandez J, Duran Jimenez E, Morenate Navio C, Romero M, Pan M, Suarez De Lezo J, Vaturi M, Weisenberg D, Monakier D, Valdman A, Vaknin- Assa H, Assali A, Kornowski R, Sagie A, Shapira Y, Ribeiras R, Abecasis J, Teles R, Castro M, Tralhao A, Horta E, Brito J, Andrade M, Mendes M, Avegliano G, Ronderos R, Matta MG, Camporrotondo M, Castro F, Albina G, Aranda A, Navia D, Siciliano M, Migliore F, Cavedon S, Folino F, Pedrizzetti G, Bertaglia M, Corrado D, Iliceto S, Badano LP, Merlo M, Stolfo D, Losurdo P, Ramani F, Barbati G, Pivetta A, Pinamonti B, Sinagra GF, Di Lenarda A, Bandera F, Pellegrino M, Labate V, Carbone F, Alfonzetti E, Guazzi M, Di Palma E, Baldini L, Verrengia M, Vastarella R, Limongelli G, Bossone E, Calabro' R, Russo MG, Pacileo G, Cruz I, Correia E, Bento D, Teles L, Lourenco C, Faria R, Domingues K, Picarra B, Marques N, Muser D, Gianfagna P, Morocutti G, Proclemer A, Gomes AC, Lopes LR, Stuart B, Caldeira D, Morgado G, Almeida AR, Canedo P, Bagulho C, Pereira H, Pardo Sanz A, Marco Del Castillo A, Monteagudo Ruiz JM, Rincon Diaz LM, Ruiz Rejon F, Casas E, Hinojar R, Fernandez-Golfin C, Zamorano Gomez JL, Erhart L, Staehli BE, Kaufmann BA, Tanner FC, Kontaraki J, Parthenakis F, Maragkoudakis S, Zacharis E, Patrianakos A, Vardas P, Domingues K, Correia E, Lopes L, Teles L, Picarra B, Magalhaes P, Faria R, Lourenco C, Azevedo O, Boulogne C, Magne J, Damy T, Martin S, Boncoeur MP, Aboyans V, Jaccard A, Saavedra Falero J, Alberca Vela MT, Molina Blazquez L, Mata Caballero R, Serrano Rosado JA, Elviro R, Di Gioia C, Fernandez Rozas I, Manzano MC, Martinez Sanchez JI, Molina M, Palma J, Werther Evaldsson A, Radegran G, Stagmo M, Waktare J, Roijer A, Meurling CJ, Righini FM, Sparla S, Di Tommaso C, Focardi M, D'ascenzi F, Tacchini D, Maccherini M, Henein M, Mondillo S, Ingvarsson A, Waktare J, Thilen U, Stagmo M, Roijer A, Radegran G, Meurling C, Jud A, Aurich M, Katus HA, Mereles D, Faber R, Pena A, Mygind ND, Suhrs HE, Zander M, Prescott E, Handoka NESRIN, Ghali MONA, Eldahshan NAHED, Ibrahim AHMED, Al-Eraky AZ, El Attar MA, Omar AS, Pelliccia A, Alvino F, Solari M, Cameli M, Focardi M, Bonifazi M, Mondillo S, Giudice CA, Assante Di Panzillo E, Castaldo D, Riccio E, Pisani A, Trimarco B, Deljanin Ilic M, Ilic S, Magda LS, Florescu M, Velcea A, Mihalcea D, Chiru A, Popescu BO, Tiu C, Vinereanu D, Hutyra M, Cechakova E, Littnerova S, Taborsky M, Lugli R, Bursi F, Fabbri M, Modena MG, Stefanelli G, Mussini C, Barbieri A, Youn HJ, O JH, Yoon HJ, Jung HO, Shin GJ, Rdzanek A, Pietrasik A, Kochman J, Huczek Z, Milewska A, Marczewska M, Szmigielski CA, Abd Eldayem SOHA, El Magd El Bohy ABO, Slee A, Peresso V, Nazir S, Sharma R, Bandera F, Pellegrino M, Labate V, Carbone F, Alfonzetti E, Guazzi M, Anton Ladislao A, Gomez Sanchez V, Cacidedo Fernandez Bobadilla A, Onaindia Gandarias JJ, Rodriguez Sanchez I, Romero Pereira A, Quintana Rackza O, Jimenez Melo O, Zugazabeitia Irazabal G, Huttin O, Venner C, Deballon R, Manenti V, Villemin T, Olivier A, Sadoul N, Juilliere Y, Selton-Suty C, Simioniuc A, Mandoli GE, Dini FL, Marzilli M, Picano E, Martin-Fernandez M, De La Hera Galarza JM, Corros-Vicente C, Leon-Aguero V, Velasco-Alonso E, Colunga-Blanco S, Fidalgo-Arguelles A, Rozado-Castano J, Moris De La Tassa C, Stelzmueller ME, Wisser W, Reichenfelser W, Mohl W, Saporito S, Mischi M, Bouwman RA, Van Assen HC, Van Den Bosch HCM, De Lepper A, Korsten HHM, Houthuizen P, Rodrigues A, Leal G, Silvestre O, Andrade J, Hjertaas JJ, Greve G, Matre K, Teixeira R, Baptista R, Barbosa A, Ribeiro N, Castro G, Martins R, Cardim N, Goncalves L, Pego M, Teixeira R, Baptista R, Barbosa A, Ribeiro N, Castro G, Martins R, Cardim N, Goncalves L, Pego M, Teixeira R, Baptista R, Barbosa A, Oliveira AP, Castro G, Martins R, Cardim N, Goncalves L, Pego M, Kouris N, Kostopoulos V, Markos L, Olympios CD, Kovacs A, Tarnoki AD, Tarnoki DL, Kolossvary M, Apor A, Maurovich-Horvat P, Jermendy G, Sengupta P, Merkely B, Viveiros Monteiro A, Galrinho A, Pereira-Da-Silva T, Moura Branco L, Timoteo A, Abreu J, Leal A, Varela F, Cruz Ferreira R, Yang LT, Tsai WC, Mpaltoumas K, Fotoglidis A, Triantafyllou K, Pagourelias E, Kassimatis E, Tzikas S, Kotsiouros G, Mantzogeorgou E, Vassilikos V, Calicchio F, Manivarmane R, Pareek N, Baksi J, Rosen S, Senior R, Lyon AR, Khattar RS, Marinescu C, Onciul S, Zamfir D, Tautu O, Dorobantu M, Carbonell San Roman A, Rincon Diez LM, Gonzalez Gomez A, Fernandez Santos S, Lazaro Rivera C, Moreno Vinues C, Sanmartin Fernandez M, Fernandez-Golfin C, Zamorano Gomez JL, Alirezaei T, Karimi AS, Kakiouzi V, Felekos I, Panagopoulou V, Latsios G, Karabela M, Petras D, Tousoulis D, Abid L, Abid D, Kammoun S, Ben Kahla S, Lee JW, Martin Fernandez M, Costilla Garcia SM, Diaz Pelaez E, Moris De La Tassa C. Poster session 3The imaging examinationP646Simulator-based testing of skill in transthoracic echoP647Clinical and echocardiographic characteristics of isolated left ventricular non-compactionP648Appropriate use criteria of transthoracic echocardiography and its clinical impact in an aged populationAnatomy and physiology of the heart and great vesselsP649Prevalence and determinants of exercise oscillatory ventilation in the EUROEX trial populationAssessment of diameters, volumes and massP650Left atrial remodeling after percutaneous left atrial appendage closureP651Global atrial performance with tyrosine kinase inhibitors in metastatic renal cell carcinomaP652Early right ventricular response to cardiac resynchronization therapy: impact on clinical outcomesP653Parameters of speckle-tracking echocardiography and biomechanical values of a dilative ascending aortaAssessments of haemodynamicsP654Right atrial hemodynamics in infants and children: observations from 3-dimensional echocardiography derived right atrial volumesAssessment of systolic functionP655One-point carotid wave intensity predicts cardiac mortality in patients with congestive heart failure and reduced ejection fractionP656Persistence of cardiac remodeling in adolescents with previous fetal growth restrictionP6572D speckle tracking-derived left ventricle global longitudinal strain and left ventricular dysfunction stages: a useful discriminator in moderate-to-severe aortic regurgitationP658Global longitudinal strain and strain rate in type two diabetes patients with chronic heart failure: relevance to circulating osteoprotegerinP659Analysis of left ventricular function in patients before and after surgical and interventional mitral valve therapyP660Left ventricular end-diastolic volume is complementary with global longitudinal strain for the prediction of left ventricular ejection fraction in echocardiographic daily practiceP661Left ventricular assist device, right ventricle function, and selection bias: the light side of the moonP662Assessment of right ventricular function in patients with anterior ST elevation myocardial infarction; a 2-d speckle tracking studyP663Right ventricular systolic function assessment in sickle cell anaemia using echocardiographyAssessment of diastolic functionP664Prognostic value of transthoracic cardiopulmonary ultrasound in cardiac surgery intensive care unitP665Comparative efficacy of renin-angiotensin system modulators on prognosis, right heart and left atrial parameters in patients with chronic heart failure and preserved left ventricular systolic functionP666Left atrial volume index is the most significant diastolic functional parameter of hemodynamic burden as measured by NT-proBNP in acute myocardial infarctionP667Preventive echocardiographic screening. preliminary dataP668Assessment of the atrial electromechanical delay and the mechanical functions of the left atrium in patients with diabetes mellitus type IIschemic heart diseaseP669Coronary flow velocity reserve by echocardiography as a measure of microvascular function: feasibility, reproducibility and agreement with PET in overweight patients with coronary artery diseaseP670Influence of cardiovascular risk in the occurrence of events in patients with negative stress echocardiographyP671Prevalence of transmural myocardial infarction and viable myocardium in chronic total occlusion (CTO) patientsP672The impact of the interleukin 6 receptor antagonist tocilizumab on mircovascular dysfunction after non st elevation myocardial infarction assessed by coronary flow reserve from a randomized studyP673Impact of manual thrombus aspiration on left ventricular remodeling: the echocardiographic substudy of the randomized Physiologic Assessment of Thrombus Aspirtion in patients with ST-segment ElevatioP674Acute heart failure in STEMI patients treated with primary percutaneous coronary intervention is related to transmural circumferential myocardial strainP675Long-term prognostic value of infarct size as assessed by cardiac magnetic resonance imaging after a first st-segment elevation myocardial infarctionHeart valve DiseasesP676Prognostic value of LV global longitudinal strain in aortic stenosis with preserved LV ejection fractionP677Importance of longitudinal dyssynchrony in low flow low gradient severe aortic stenosis patients undergoing dobutamine stress echocardiography. a multicenter study (on behalf of the HAVEC group)P678Predictive value of left ventricular longitudinal strain by 2D Speckle Tracking echocardiography, in asymptomatic patients with severe aortic stenosis and preserved ejection fractionP679Clinical and echocardiographic characteristics of the flow-gradient patterns in patients with severe aortic stenosis and preserved left ventricular ejection fractionP6802D and 3D speckle tracking assessment of left ventricular function in severe aortic stenosis, a step further from biplane ejection fractionP681Functional evaluation in aortic stenosis: determinant of exercise capacityP682Left ventricular mechanics: novel tools to evaluate left ventricular function in patients with primary mitral regurgitationP683Plasma B-type natriuretic peptide level in patients with isolated rheumatic mitral stenosisP684Quantitative assessment of severity in aortic regurgitation and the influence of elastic proprieties of thoracic aortaP685Characterization of chronic aortic and mitral regurgitation using cardiovascular magnetic resonanceP686Functional mitral regurgitation: a warning sign of underlying left ventricular systolic dysfunction in heart failure with preserved ejection fraction.P687Secondary mitral valve tenting in primary degenerative prolapse quantified by three-dimensional echocardiography predicts regurgitation recurrence after mitral valve repairP688Advanced heart failure with reduced ejection fraction and severe mitral insufficiency compensate with a higher oxygen peripheral extraction to a reduced cardiac output vs oxygen uptake response to maxP689Predictors of acute procedural success after percutaneous mitraclip implantation in patients with moderate-to-severe or severe mitral regurgitation and reduced ejection fractionP690The value of transvalvular gradients obtained by transthoracic echocardiography in estimation of severe paravalvular leakage in patients with mitral prosthetic valvesP691Characteristics of infective endocarditis in a non tertiary hospitalP692Infective endocarditis: predictors of severity in a 3-year retrospective analysisP693New echocardiographic predictors of early recurrent mitral functional regurgitation after mitraclip implantationP694Transesophageal echocardiography can be reliably used for the allocation of patients with severe aortic stenosis for tras-catheter aortic valve implantationP695Annular sizing for transcatheter aortic valve selection. A comparison between computed tomography and 3D echocardiographyP696Association between aortic dilatation, mitral valve prolapse and atrial septal aneurysm: first descriptive study.CardiomyopathiesP698Cardiac resynchronization therapy by multipoint pacing improves the acute response of left ventricular mechanics and fluid dynamics: a three-dimensional and particle image velocimetry echo studyP699Long-term natural history of right ventricular function in dilated cardiomyopathy: innocent bystander or leading actor?P700Right to left ventricular interdependence at rest and during exercise assessed by the ratio between pulmonary systolic to diastolic time in heart failure reduced ejection fractionP701Exercise strain imaging demonstrates impaired right ventricular contractile reserve in patients with hypertrophic cardiomyopathyP702Prevalence of overt left ventricular dysfunction (burn-out phase) in a portuguese population of hypertrophic cardiomyopathy, a multicentre studyP703Systolic and diastolic myocardial mechanics in hypertrophic cardiomyopathy and their link to the extent of hypertrophy, replacement fibrosis and interstitial fibrosisP704Multimodality imaging and genotype-phenotype associations in a cohort of patients with hypertrophic cardiomyopathy studied by next generation sequencing and cardiac magnetic resonanceP705Sudden cardiac death risk assessment in apical hypertrophic cardiomyopathy: do we need to add MRI to the equation?P706Prognostic value of left ventricular ejection fraction, proBNP, exercise capacity, and NYHA functional class in patients with left ventricular non-compaction cardiomyopathyP707The anti-hypertrophic microRNAs miR-1, miR-133a and miR-26b and their relationship to left ventricular hypertrophy in patients with essential hypertensionP708Prevalence of left ventricular systolic dysfunction in a portuguese population of left ventricular non-compaction cardiomyopathy, a multicentre studyP709Assessment of systolic and diastolic features in light chain amyloidosis: an echocardiographic and cardiac magnetic resonance studyP710Morbid obesity-associated hypertension identifies bariatric surgery best responders: Clinical and echocardiographic follow up studyP711Echocardiographic markera for overhydration in patients under haemodialysisP712Gender aspects of right ventricular size and function in clinically stable heart transplant patientsP713Evidence of cardiac stem cells from the left ventricular apical tip in patients undergone LVAD implant: a comparative strain-ultrastructural studySystemic diseases and other conditionsP714Speckle tracking assessment of right ventricular function is superior for differentiation of pressure versus volume overloaded right ventricleP715Prognostic value of pulmonary arterial pressure: analysis in a large dataset of timely matched non-invasive and invasive assessmentsP716Effect of the glucagon-like peptide-1 analogue liraglutide on left ventricular diastolic and systolic function in patients with type 2 diabetes: a randomised, single-blinded, crossover pilot studyP717Tissue doppler evaluation of left ventricular functions, left atrial mechanical functions and atrial electromechanical delay in juvenile idiopathic arthritisP718Echocardiographic detection of subclinical left ventricular dysfunction in patients with rheumatoid arthritisP719Left ventricular strain values are unaffected by intense training: a longitudinal, speckle-tracking studyP720Diastolic left ventricular function in autosomal dominant polycystic kidney disease: a matched-cohort, speckle-tracking echocardiographic studyP721Relationship between adiponectin level and left ventricular mass and functionP722Left atrial function is impaired in patients with multiple sclerosisMasses, tumors and sources of embolismP723Paradoxical embolization to the brain in patients with acute pulmonary embolism and confirmed patent foramen ovale with bidirectional shunt, results of prospective monitoringP724Following the European Society of Cardiology proposed echocardiographic algorithm in elective patients with clinical suspicion of infective endocarditis: diagnostic yield and prognostic implicationsP725Metastatic cardiac18F-FDG uptake in patients with malignancy: comparison with echocardiographic findingsDiseases of the aortaP726Echocardiographic measurements of aortic pulse wave velocity correlate well with invasive methodP727Assessment of increase in aortic and carotid intimal medial thickness in adolescent type 1 diabetic patientsStress echocardiographyP728Determinants and prognostic significance of heart rate variability in renal transplant candidates undergoing dobutamine stress echocardiographyP729Pattern of cardiac output vs O2 uptake ratio during maximal exercise in heart failure with reduced ejection fraction: pathophysiological insightsP730Prognostic value and predictive factors of cardiac events in patients with normal exercise echocardiographyP731Right ventricular mechanics during exercise echocardiography: normal values, feasibility and reproducibility of conventional and new right ventricular function parametersP732The added value of exercise-echo in heart failure patients: assessing dynamic changes in extravascular lung waterP733Applicability of appropriate use criteria of exercise stress echocardiography in real-life practice: what have we improved with new documents?Transesophageal echocardiographyP7343D-TEE guidance in percutaneous mitral valve interventions correcting mitral regurgitationContrast echocardiographyP735Pulmonary transit time by contrast enhanced ultrasound as parameter for cardiac performance: a comparison with magnetic resonance imaging and NT-ProBNPReal-time three-dimensional TEEP736Optimal parameter selection for anisotropic diffusion denoising filters applied to aortic valve 4d echocardiographsP737Left ventricle systolic function in non-alcoholic cirrhotic candidates for liver transplantation: a three-dimensional speckle-tracking echocardiography studyTissue Doppler and speckle trackingP738Optimizing speckle tracking echocardiography strain measurements in infants: an in-vitro phantom studyP739Usefulness of vascular mechanics in aortic degenerative valve disease to estimate prognosis: a two dimensional speckle tracking studyP740Vascular mechanics in aortic degenerative valve disease: a two dimensional speckle-tracking echocardiography studyP741Statins and vascular load in aortic valve disease patients, a speckle tracking echocardiography studyP742Is Left Bundle Branch Block only an electrocardiographic abnormality? Study of LV function by 2D speckle tracking in patients with normal ejection fractionP743Dominant inheritance of global longitudinal strain in a population of healthy and hypertensive twinsP744Mechanical differences of left atria in paroxysmal atrial fibrillation: A speckle-tracking study.P745Different distribution of myocardial deformation between hypertrophic cardiomyopathy and aortic stenosisP746Left atrial mechanics in patients with chronic renal failure. Incremental value for atrial fibrillation predictionP747Subclinical myocardial dysfunction in cancer patients: is there a direct effect of tumour growth?P748The abnormal global longitudinal strain predicts significant circumflex artery disease in low risk acute coronary syndromeP7493D-Speckle tracking echocardiography for assessing ventricular funcion and infarct size in young patients after acute coronary syndromeP750Evaluation of left ventricular dyssynchrony by echocardiograhy in patients with type 2 diabetes mellitus without clinically evident cardiac diseaseP751Differences in myocardial function between peritoneal dialysis and hemodialysis patients: insights from speckle tracking echoP752Appraisal of left atrium changes in hypertensive heart disease: insights from a speckle tracking studyP753Left ventricular rotational behavior in hypertensive patients: Two dimensional speckle tracking imaging studyComputed Tomography & Nuclear CardiologyP754Effectiveness of adaptive statistical iterative reconstruction of 64-slice dual-energy ct pulmonary angiography in the patients with reduced iodine load: comparison with standard ct pulmonary angiograP755Clinical prediction model to inconclusive result assessed by coronary computed tomography angiography. Eur Heart J Cardiovasc Imaging 2015. [DOI: 10.1093/ehjci/jev277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Lee K, Wan S, Poon P. Feasibility, effectiveness and cost estimation of a 3-week, physiotherapy-led exercise programme for prostate cancer survivors. Hong Kong Physiother J 2015. [DOI: 10.1016/j.hkpj.2015.09.015] [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: 11/28/2022] Open
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Huibers A, de Borst G, Wan S, Kennedy F, Giannopoulos A, Moll F, Richards T. Non-invasive Carotid Artery Imaging to Identify the Vulnerable Plaque: Current Status and Future Goals. Eur J Vasc Endovasc Surg 2015; 50:563-72. [DOI: 10.1016/j.ejvs.2015.06.113] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 06/19/2015] [Indexed: 11/28/2022]
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