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Chu Z, Cen L, Xu Q, Lin G, Mo J, Shao L, Zhao Y, Li J, Ye W, Fang T, Ren W, Zhu Q, He G, Xu Y. Discovery of the novel and potent histamine H1 receptor antagonists for treatment of allergic diseases. Eur J Med Chem 2024; 268:116197. [PMID: 38368709 DOI: 10.1016/j.ejmech.2024.116197] [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: 11/23/2023] [Revised: 01/27/2024] [Accepted: 01/28/2024] [Indexed: 02/20/2024]
Abstract
Desloratadine, a second-generation histamine H1 receptor antagonist, has established itself as a first-line drug for the treatment of allergic diseases. Despite its effectiveness, desloratadine exhibits an antagonistic effect on muscarinic M3 receptor, which can cause side effects such as dry mouth and urinary retention, ultimately limiting its clinical application. Herein, we describe the discovery of compound Ⅲ-4, a novel H1 receptor antagonist with significant H1 receptor antagonistic activity (IC50 = 24.12 nM) and enhanced selectivity towards peripheral H1 receptor. In particular, Ⅲ-4 exhibits reduced M3 receptor inhibitory potency (IC50 > 10,000 nM) and acceptable hERG inhibitory activity (17.6 ± 2.1 μM) compare with desloratadine. Additionally, Ⅲ-4 exhibits favorable pharmacokinetic properties, as well as in vivo efficacy and safety profiles. All of these reveal that Ⅲ-4 has potential to emerge as a novel H1 receptor antagonist for the treatment of allergic diseases. More importantly, the compound Ⅲ-4 (HY-078020) has recently been granted clinical approval.
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Affiliation(s)
- Zhaoxing Chu
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, China; Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China
| | - Lifang Cen
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, China
| | - Qinlong Xu
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China
| | - Gaofeng Lin
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China
| | - Jiajia Mo
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China
| | - Li Shao
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China
| | - Yan Zhao
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China
| | - Jiaming Li
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Wenfeng Ye
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China
| | - Tao Fang
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China
| | - Weijie Ren
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, China
| | - Qihua Zhu
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, China.
| | - Guangwei He
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China.
| | - Yungen Xu
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, China.
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Lin G, Xu Q, Li J, Chu Z, Ma X, Zhu Q, Zhao Y, Mo J, Ye W, Shao L, Fang T, He M, Yue S, Dai M. Design, Synthesis, and Biological Evaluation of Pierardine Derivatives as Novel Brain-Penetrant and In Vivo Potent NMDAR-GluN2B Antagonists for Ischemic Stroke Treatment. J Med Chem 2024; 67:3358-3384. [PMID: 38413367 DOI: 10.1021/acs.jmedchem.3c01524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
A series of structurally novel GluN2B NMDAR antagonists were designed, synthesized, and biologically evaluated as anti-stroke therapeutics by optimizing the chemical structure of Pierardine, the active ingredient of traditional Chinese medicine Dendrobium aphyllum (Roxb.) C. E. Fischer identified via in silico screening. The systematic structure-activity relationship study led to the discovery of 58 with promising NMDAR-GluN2B binding affinity and antagonistic activity. Of the two enantiomers, S-58 exhibited significant inhibition (IC50 = 74.01 ± 12.03 nM) against a GluN1/GluN2B receptor-mediated current in a patch clamp assay. In addition, it displayed favorable specificity over other subtypes and off-target receptors. In vivo, S-58 exerted therapeutic efficacy comparable to that of the approved GluN2B NMDAR antagonist ifenprodil and excellent safety profiles. In addition to the attractive in vitro and in vivo potency, S-58 exhibited excellent brain exposure. In light of these merits, S-58 has been advanced to further preclinical investigation as a potential anti-stroke candidate.
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Affiliation(s)
- Gaofeng Lin
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
- Hefei Institute of Pharmaceutical Industry Company, Ltd., Hefei 230088, China
| | - Qinlong Xu
- Hefei Institute of Pharmaceutical Industry Company, Ltd., Hefei 230088, China
| | - Jiaming Li
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
- Department of Medicinal Chemistry, Anhui Academy of Chinese Medicine, Hefei 230012, China
- Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Hefei 230012, China
| | - Zhaoxing Chu
- Hefei Institute of Pharmaceutical Industry Company, Ltd., Hefei 230088, China
| | - Xiaodong Ma
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
- Department of Medicinal Chemistry, Anhui Academy of Chinese Medicine, Hefei 230012, China
- Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Hefei 230012, China
| | - Qihua Zhu
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Yan Zhao
- Hefei Institute of Pharmaceutical Industry Company, Ltd., Hefei 230088, China
| | - Jiajia Mo
- Hefei Institute of Pharmaceutical Industry Company, Ltd., Hefei 230088, China
| | - Wenfeng Ye
- Hefei Institute of Pharmaceutical Industry Company, Ltd., Hefei 230088, China
| | - Li Shao
- Hefei Institute of Pharmaceutical Industry Company, Ltd., Hefei 230088, China
| | - Tao Fang
- Hefei Institute of Pharmaceutical Industry Company, Ltd., Hefei 230088, China
| | - Minghan He
- Rutgers Preparatory School, Somerset, New Jersey 08873, United States
| | - Shaoyun Yue
- Hefei Institute of Pharmaceutical Industry Company, Ltd., Hefei 230088, China
| | - Mingqi Dai
- Hefei Institute of Pharmaceutical Industry Company, Ltd., Hefei 230088, China
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3
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Shao L, Mo J, Xu Q, He G, Xing C, Chu Z. Preclinical pharmacokinetic investigation of the bioavailability and skin distribution of HY-072808 ointment, a novel drug candidate for the treatment of atopic dermatitis, in minipigs by a newly LC-MS/MS method. Xenobiotica 2024; 54:138-149. [PMID: 38501457 DOI: 10.1080/00498254.2024.2333007] [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: 02/19/2024] [Accepted: 03/17/2024] [Indexed: 03/20/2024]
Abstract
HY-072808 is a novel phosphodiesterase 4 inhibitor clinically used for topical atopic dermatitis treatment. Cytochrome P450 enzymes are involved in transforming it into major metabolite ZZ-24. An efficient UPLC-MS/MS method was established to detect HY-072808 and ZZ-24 in plasma and skin tissues of minipigs.One-step protein precipitation was performed with acetonitrile. Subsequently, elution was served with a methanol and water gradient containing 0.1% formic acid for 3.5 min. The plasma and skin tissue concentrations of HY-072808 and ZZ-24 showed good linearity from 0.200 to 200 ng/mL.The experimental minipigs exhibited low systemic exposure and bioavailability of 3.1-7.6% after transdermal application of 1-4% HY-072808 ointment. Multiple topical administrations over seven consecutive days showed a minor accumulation in systemic exposure, with accumulation factors of 2.3 and 4.0 for HY-072808 and ZZ-24, respectively.The distribution of HY-072808 ointment among different cortical layers in minipigs was studied for the first time. Following transdermal application of 2% HY-072808 ointment, the concentration in plasma and skin tissues in the order of epidermis > dermis > subcutaneous tissue ≈ subcutaneous muscle ≈ plasma; at 48 h after the administration, the epidermis and dermis still had a high concentration of the drug.
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Affiliation(s)
- Li Shao
- Hefei Institute of Pharmaceutical Industry Co., Ltd, Hefei, China
| | - Jiajia Mo
- Hefei Institute of Pharmaceutical Industry Co., Ltd, Hefei, China
| | - Qinlong Xu
- Hefei Institute of Pharmaceutical Industry Co., Ltd, Hefei, China
| | - Guangwei He
- Hefei Institute of Pharmaceutical Industry Co., Ltd, Hefei, China
| | - Chunyu Xing
- WestChina-Frontier, Pharma Tech Co., Ltd, Chengdu, China
| | - Zhaoxing Chu
- Hefei Institute of Pharmaceutical Industry Co., Ltd, Hefei, China
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4
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Huang Y, Han M, Shi Q, Li X, Mo J, Liu Y, Chu Z, Li W. Li, P HY-021068 alleviates cerebral ischemia-reperfusion injury by inhibiting NLRP1 inflammasome and restoring autophagy function in mice. Exp Neurol 2024; 371:114583. [PMID: 37884189 DOI: 10.1016/j.expneurol.2023.114583] [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: 08/04/2023] [Revised: 10/08/2023] [Accepted: 10/23/2023] [Indexed: 10/28/2023]
Abstract
Cerebral ischemia-reperfusion injury (CIRI) is a severe pathological condition that involves oxidative stress, inflammatory response, and neuronal damage. HY-021068 belongs to a new drug of chemical class 1, which is a potential thromboxane synthase inhibitor. Our preliminary experiment found that HY-021068 has significant anti-neuroinflammatory and neuroprotective effects. However, the protective effect and mechanism of HY-021068 in CIRI remain unclear. To investigate the protective effect and mechanism of HY-021068 in CIRI mice. In mice, CIRI was induced by bilateral common carotid artery occlusion and reperfusion. Mice were treated with HY-021068 or LV-NLRP1-shRNA (lentivirus-mediated shRNA transfection to knock down NLRP1 expression). The locomotor activity, neuronal damage, pathological changes, postsynaptic density protein-95 (PSD-95) expression, NLRP1 inflammasome activation, autophagy markers, and apoptotic proteins were assessed in CIRI mice. In this study, treatment with HY-021065 and LV-NLRP1-shRNA significantly improved motor dysfunction and neuronal damage after CIRI in mice. HY-021065 and NLRP1 knockdown significantly ameliorated the pathological damage and increased PSD-95 expression in the cortex and hippocampus CA1 and CA3 regions. The further studies showed that compared with the CIRI model group, HY-021065 and NLRP1 knockdown treatment inhibited the expressions of NLRP1, ASC, caspase-1, and IL-1β, restored the expressions of p-AMPK/AMPK, Beclin1, LC3II/LC3I, p-mTOR/m-TOR and P62, and regulated the expressions of BCL-2, Caspase3, and BAX in brain tissues of CIRI mice in CIRI mice. These results suggest that HY-021068 exerts a protective role in CIRI mice by inhibiting NLRP1 inflammasome activation and regulating autophagy function and neuronal apoptosis. HY-021068 is expected to become a new therapeutic drug for CIRI.
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Affiliation(s)
- Ye Huang
- Department of Plastic Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, Anhui, China
| | - Min Han
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei 230032, Anhui, China
| | - Qifeng Shi
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei 230032, Anhui, China
| | - Xuewang Li
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei 230032, Anhui, China
| | - Jiajia Mo
- Hefei Industrial and Pharmaceutical Co., Ltd, Hefei 230200, Anhui, China
| | - Yan Liu
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei 230032, Anhui, China
| | - Zhaoxing Chu
- Hefei Industrial and Pharmaceutical Co., Ltd, Hefei 230200, Anhui, China.
| | - Weizu Li
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei 230032, Anhui, China.
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5
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Aguillard DP, Albahri T, Allspach D, Anisenkov A, Badgley K, Baeßler S, Bailey I, Bailey L, Baranov VA, Barlas-Yucel E, Barrett T, Barzi E, Bedeschi F, Berz M, Bhattacharya M, Binney HP, Bloom P, Bono J, Bottalico E, Bowcock T, Braun S, Bressler M, Cantatore G, Carey RM, Casey BCK, Cauz D, Chakraborty R, Chapelain A, Chappa S, Charity S, Chen C, Cheng M, Chislett R, Chu Z, Chupp TE, Claessens C, Convery ME, Corrodi S, Cotrozzi L, Crnkovic JD, Dabagov S, Debevec PT, Di Falco S, Di Sciascio G, Drendel B, Driutti A, Duginov VN, Eads M, Edmonds A, Esquivel J, Farooq M, Fatemi R, Ferrari C, Fertl M, Fienberg AT, Fioretti A, Flay D, Foster SB, Friedsam H, Froemming NS, Gabbanini C, Gaines I, Galati MD, Ganguly S, Garcia A, George J, Gibbons LK, Gioiosa A, Giovanetti KL, Girotti P, Gohn W, Goodenough L, Gorringe T, Grange J, Grant S, Gray F, Haciomeroglu S, Halewood-Leagas T, Hampai D, Han F, Hempstead J, Hertzog DW, Hesketh G, Hess E, Hibbert A, Hodge Z, Hong KW, Hong R, Hu T, Hu Y, Iacovacci M, Incagli M, Kammel P, Kargiantoulakis M, Karuza M, Kaspar J, Kawall D, Kelton L, Keshavarzi A, Kessler DS, Khaw KS, Khechadoorian Z, Khomutov NV, Kiburg B, Kiburg M, Kim O, Kinnaird N, Kraegeloh E, Krylov VA, Kuchinskiy NA, Labe KR, LaBounty J, Lancaster M, Lee S, Li B, Li D, Li L, Logashenko I, Lorente Campos A, Lu Z, Lucà A, Lukicov G, Lusiani A, Lyon AL, MacCoy B, Madrak R, Makino K, Mastroianni S, Miller JP, Miozzi S, Mitra B, Morgan JP, Morse WM, Mott J, Nath A, Ng JK, Nguyen H, Oksuzian Y, Omarov Z, Osofsky R, Park S, Pauletta G, Piacentino GM, Pilato RN, Pitts KT, Plaster B, Počanić D, Pohlman N, Polly CC, Price J, Quinn B, Qureshi MUH, Ramachandran S, Ramberg E, Reimann R, Roberts BL, Rubin DL, Santi L, Schlesier C, Schreckenberger A, Semertzidis YK, Shemyakin D, Sorbara M, Stöckinger D, Stapleton J, Still D, Stoughton C, Stratakis D, Swanson HE, Sweetmore G, Sweigart DA, Syphers MJ, Tarazona DA, Teubner T, Tewsley-Booth AE, Tishchenko V, Tran NH, Turner W, Valetov E, Vasilkova D, Venanzoni G, Volnykh VP, Walton T, Weisskopf A, Welty-Rieger L, Winter P, Wu Y, Yu B, Yucel M, Zeng Y, Zhang C. Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm. Phys Rev Lett 2023; 131:161802. [PMID: 37925710 DOI: 10.1103/physrevlett.131.161802] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 09/05/2023] [Indexed: 11/07/2023]
Abstract
We present a new measurement of the positive muon magnetic anomaly, a_{μ}≡(g_{μ}-2)/2, from the Fermilab Muon g-2 Experiment using data collected in 2019 and 2020. We have analyzed more than 4 times the number of positrons from muon decay than in our previous result from 2018 data. The systematic error is reduced by more than a factor of 2 due to better running conditions, a more stable beam, and improved knowledge of the magnetic field weighted by the muon distribution, ω[over ˜]_{p}^{'}, and of the anomalous precession frequency corrected for beam dynamics effects, ω_{a}. From the ratio ω_{a}/ω[over ˜]_{p}^{'}, together with precisely determined external parameters, we determine a_{μ}=116 592 057(25)×10^{-11} (0.21 ppm). Combining this result with our previous result from the 2018 data, we obtain a_{μ}(FNAL)=116 592 055(24)×10^{-11} (0.20 ppm). The new experimental world average is a_{μ}(exp)=116 592 059(22)×10^{-11} (0.19 ppm), which represents a factor of 2 improvement in precision.
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Affiliation(s)
| | - T Albahri
- University of Liverpool, Liverpool, United Kingdom
| | - D Allspach
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - A Anisenkov
- Budker Institute of Nuclear Physics, Novosibirsk, Russia
| | - K Badgley
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - S Baeßler
- University of Virginia, Charlottesville, Virginia, USA
| | - I Bailey
- Lancaster University, Lancaster, United Kingdom
| | - L Bailey
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - V A Baranov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - E Barlas-Yucel
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - T Barrett
- Cornell University, Ithaca, New York, USA
| | - E Barzi
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | | | - M Berz
- Michigan State University, East Lansing, Michigan, USA
| | - M Bhattacharya
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - H P Binney
- University of Washington, Seattle, Washington, USA
| | - P Bloom
- North Central College, Naperville, Illinois, USA
| | - J Bono
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - E Bottalico
- University of Liverpool, Liverpool, United Kingdom
| | - T Bowcock
- University of Liverpool, Liverpool, United Kingdom
| | - S Braun
- University of Washington, Seattle, Washington, USA
| | - M Bressler
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | | | - R M Carey
- Boston University, Boston, Massachusetts, USA
| | - B C K Casey
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - D Cauz
- Università di Udine, Udine, Italy
| | | | | | - S Chappa
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - S Charity
- University of Liverpool, Liverpool, United Kingdom
| | - C Chen
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China
| | - M Cheng
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - R Chislett
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - Z Chu
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - T E Chupp
- University of Michigan, Ann Arbor, Michigan, USA
| | - C Claessens
- University of Washington, Seattle, Washington, USA
| | - M E Convery
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - S Corrodi
- Argonne National Laboratory, Lemont, Illinois, USA
| | | | - J D Crnkovic
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - S Dabagov
- INFN, Laboratori Nazionali di Frascati, Frascati, Italy
| | - P T Debevec
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | | | | | - B Drendel
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | | | - V N Duginov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - M Eads
- Northern Illinois University, DeKalb, Illinois, USA
| | - A Edmonds
- Boston University, Boston, Massachusetts, USA
| | - J Esquivel
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Farooq
- University of Michigan, Ann Arbor, Michigan, USA
| | - R Fatemi
- University of Kentucky, Lexington, Kentucky, USA
| | | | - M Fertl
- Institute of Physics and Cluster of Excellence PRISMA+, Johannes Gutenberg University Mainz, Mainz, Germany
| | - A T Fienberg
- University of Washington, Seattle, Washington, USA
| | | | - D Flay
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | - S B Foster
- Boston University, Boston, Massachusetts, USA
| | - H Friedsam
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | | | | | - I Gaines
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | | | - S Ganguly
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - A Garcia
- University of Washington, Seattle, Washington, USA
| | - J George
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | | | - A Gioiosa
- Università del Molise, Campobasso, Italy
| | - K L Giovanetti
- Department of Physics and Astronomy, James Madison University, Harrisonburg, Virginia, USA
| | | | - W Gohn
- University of Kentucky, Lexington, Kentucky, USA
| | - L Goodenough
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - T Gorringe
- University of Kentucky, Lexington, Kentucky, USA
| | - J Grange
- University of Michigan, Ann Arbor, Michigan, USA
| | - S Grant
- Argonne National Laboratory, Lemont, Illinois, USA
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - F Gray
- Regis University, Denver, Colorado, USA
| | - S Haciomeroglu
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | | | - D Hampai
- INFN, Laboratori Nazionali di Frascati, Frascati, Italy
| | - F Han
- University of Kentucky, Lexington, Kentucky, USA
| | - J Hempstead
- University of Washington, Seattle, Washington, USA
| | - D W Hertzog
- University of Washington, Seattle, Washington, USA
| | - G Hesketh
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - E Hess
- INFN, Sezione di Pisa, Pisa, Italy
| | - A Hibbert
- University of Liverpool, Liverpool, United Kingdom
| | - Z Hodge
- University of Washington, Seattle, Washington, USA
| | - K W Hong
- University of Virginia, Charlottesville, Virginia, USA
| | - R Hong
- Argonne National Laboratory, Lemont, Illinois, USA
- University of Kentucky, Lexington, Kentucky, USA
| | - T Hu
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Y Hu
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | | | | | - P Kammel
- University of Washington, Seattle, Washington, USA
| | | | - M Karuza
- INFN, Sezione di Trieste, Trieste, Italy
| | - J Kaspar
- University of Washington, Seattle, Washington, USA
| | - D Kawall
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | - L Kelton
- University of Kentucky, Lexington, Kentucky, USA
| | - A Keshavarzi
- Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
| | - D S Kessler
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | - K S Khaw
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China
| | | | - N V Khomutov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - B Kiburg
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Kiburg
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
- North Central College, Naperville, Illinois, USA
| | - O Kim
- University of Mississippi, University, Mississippi, USA
| | - N Kinnaird
- Boston University, Boston, Massachusetts, USA
| | - E Kraegeloh
- University of Michigan, Ann Arbor, Michigan, USA
| | - V A Krylov
- Joint Institute for Nuclear Research, Dubna, Russia
| | | | - K R Labe
- Cornell University, Ithaca, New York, USA
| | - J LaBounty
- University of Washington, Seattle, Washington, USA
| | - M Lancaster
- Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
| | - S Lee
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - B Li
- Argonne National Laboratory, Lemont, Illinois, USA
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - D Li
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - L Li
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - I Logashenko
- Budker Institute of Nuclear Physics, Novosibirsk, Russia
| | | | - Z Lu
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - A Lucà
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - G Lukicov
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | | | - A L Lyon
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - B MacCoy
- University of Washington, Seattle, Washington, USA
| | - R Madrak
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - K Makino
- Michigan State University, East Lansing, Michigan, USA
| | | | - J P Miller
- Boston University, Boston, Massachusetts, USA
| | - S Miozzi
- INFN, Sezione di Roma Tor Vergata, Rome, Italy
| | - B Mitra
- University of Mississippi, University, Mississippi, USA
| | - J P Morgan
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - W M Morse
- Brookhaven National Laboratory, Upton, New York, USA
| | - J Mott
- Boston University, Boston, Massachusetts, USA
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - A Nath
- INFN, Sezione di Napoli, Naples, Italy
| | - J K Ng
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China
| | - H Nguyen
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - Y Oksuzian
- Argonne National Laboratory, Lemont, Illinois, USA
| | - Z Omarov
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - R Osofsky
- University of Washington, Seattle, Washington, USA
| | - S Park
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | | | | | - R N Pilato
- University of Liverpool, Liverpool, United Kingdom
| | - K T Pitts
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - B Plaster
- University of Kentucky, Lexington, Kentucky, USA
| | - D Počanić
- University of Virginia, Charlottesville, Virginia, USA
| | - N Pohlman
- Northern Illinois University, DeKalb, Illinois, USA
| | - C C Polly
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - J Price
- University of Liverpool, Liverpool, United Kingdom
| | - B Quinn
- University of Mississippi, University, Mississippi, USA
| | - M U H Qureshi
- Institute of Physics and Cluster of Excellence PRISMA+, Johannes Gutenberg University Mainz, Mainz, Germany
| | | | - E Ramberg
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - R Reimann
- Institute of Physics and Cluster of Excellence PRISMA+, Johannes Gutenberg University Mainz, Mainz, Germany
| | - B L Roberts
- Boston University, Boston, Massachusetts, USA
| | - D L Rubin
- Cornell University, Ithaca, New York, USA
| | - L Santi
- Università di Udine, Udine, Italy
| | - C Schlesier
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | | | - Y K Semertzidis
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - D Shemyakin
- Budker Institute of Nuclear Physics, Novosibirsk, Russia
| | - M Sorbara
- INFN, Sezione di Roma Tor Vergata, Rome, Italy
| | - D Stöckinger
- Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany
| | - J Stapleton
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - D Still
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - C Stoughton
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - D Stratakis
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - H E Swanson
- University of Washington, Seattle, Washington, USA
| | - G Sweetmore
- Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
| | | | - M J Syphers
- Northern Illinois University, DeKalb, Illinois, USA
| | - D A Tarazona
- Cornell University, Ithaca, New York, USA
- Michigan State University, East Lansing, Michigan, USA
- University of Liverpool, Liverpool, United Kingdom
| | - T Teubner
- University of Liverpool, Liverpool, United Kingdom
| | - A E Tewsley-Booth
- University of Kentucky, Lexington, Kentucky, USA
- University of Michigan, Ann Arbor, Michigan, USA
| | - V Tishchenko
- Brookhaven National Laboratory, Upton, New York, USA
| | - N H Tran
- Boston University, Boston, Massachusetts, USA
| | - W Turner
- University of Liverpool, Liverpool, United Kingdom
| | - E Valetov
- Michigan State University, East Lansing, Michigan, USA
| | - D Vasilkova
- Department of Physics and Astronomy, University College London, London, United Kingdom
- University of Liverpool, Liverpool, United Kingdom
| | - G Venanzoni
- University of Liverpool, Liverpool, United Kingdom
| | - V P Volnykh
- Joint Institute for Nuclear Research, Dubna, Russia
| | - T Walton
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - A Weisskopf
- Michigan State University, East Lansing, Michigan, USA
| | - L Welty-Rieger
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - P Winter
- Argonne National Laboratory, Lemont, Illinois, USA
| | - Y Wu
- Argonne National Laboratory, Lemont, Illinois, USA
| | - B Yu
- University of Mississippi, University, Mississippi, USA
| | - M Yucel
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - Y Zeng
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China
| | - C Zhang
- University of Liverpool, Liverpool, United Kingdom
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6
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Wu J, Zheng L, Zhang Q, Zhang Q, Qin H, Zhou R, Chu Z, He G, Wang L, Hu W. LC-MS/MS determination of HY072808, a novel candidate for treating atopic dermatitis, and its active metabolite: Application to a first-in-human pharmacokinetic study. Biomed Chromatogr 2023; 37:e5542. [PMID: 36330676 DOI: 10.1002/bmc.5542] [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: 08/05/2022] [Revised: 10/27/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022]
Abstract
HY072808 is a novel phosphodiesterase 4 inhibitor currently under clinical development to treat atopic dermatitis. The first step is to address the pharmacokinetics and safety after topical administration of HY072808 ointments in healthy humans. In this study, we developed a highly sensitive liquid chromatography-tandem mass spectrometry method to determine plasma HY072808 and its active metabolite, ZZ24, in tiny amounts. The plasma samples were prepared using a simple liquid-liquid extraction method. Liquid chromatographic separation was achieved by gradient elution. The MS/MS quantification was performed in positive ion mode via multiple reaction monitoring. The method showed satisfactory linearity from 10 to 4,000 pg/ml for HY072808 and ZZ24. There was no significant interference from blank plasma. The method was validated for accuracy and precision, matrix effect and extraction recovery, dilution integrity, injection carryover and stability according to the related guidelines of the regulatory authorities. The HY072808 and ZZ24 concentrations in human plasma from a clinical trial were determined using this method. In conclusion, the validated method was robust and could be utilized to support the clinical development of HY072808.
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Affiliation(s)
- Jingying Wu
- Department of Clinical Pharmacology, The Second Hospital of Anhui Medical University, Hefei, China
| | - Liang Zheng
- Department of Clinical Pharmacology, The Second Hospital of Anhui Medical University, Hefei, China
| | - Qian Zhang
- Department of Clinical Pharmacology, The Second Hospital of Anhui Medical University, Hefei, China
| | - Qin Zhang
- Department of Clinical Pharmacology, The Second Hospital of Anhui Medical University, Hefei, China
| | - Huiling Qin
- Department of Clinical Pharmacology, The Second Hospital of Anhui Medical University, Hefei, China
| | - Renpeng Zhou
- Department of Clinical Pharmacology, The Second Hospital of Anhui Medical University, Hefei, China
| | - Zhaoxing Chu
- Hefei Institute of Pharmaceutical Industry, Co., Ltd., Hefei, China
| | - Guangwei He
- Hefei Institute of Pharmaceutical Industry, Co., Ltd., Hefei, China
| | - Ling Wang
- Department of Clinical Pharmacy and Pharmacy Administration, West China School of Pharmacy, Sichuan University, Chengdu, China
| | - Wei Hu
- Department of Clinical Pharmacology, The Second Hospital of Anhui Medical University, Hefei, China
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7
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Chen W, Xu Q, Ma X, Mo J, Lin G, He G, Chu Z, Li J. Synthesis and biological evaluation of N-(benzene sulfonyl)acetamide derivatives as anti-inflammatory and analgesic agents with COX-2/5-LOX/TRPV1 multifunctional inhibitory activity. Bioorg Med Chem Lett 2023; 80:129101. [PMID: 36481449 DOI: 10.1016/j.bmcl.2022.129101] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/24/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022]
Abstract
In this study, a series of structurally novel N-(benzene sulfonyl) acetamide derivatives were designed, synthesized, and biologically evaluated as COX-2/5-LOX/TRPV1 multitarget inhibitors for anti-inflammatory and analgesic therapy. Among them, 9a and 9b displayed favorable COX-2 (9a IC50 = 0.011 μM, 9b IC50 = 0.023 μM), 5-LOX (9a IC50 = 0.046 μM, 9b IC50 = 0.31 μM) and TRPV1 (9a IC50 = 0.008 μM, 9b IC50 = 0.14 μM) inhibitory activities. The pharmacokinetic (PK) study of 9a in SD rats at the dosage of 10 mg/kg demonstrated a high oral exposure, an acceptable clearance and a favorable bioavailability (Cmax = 5807.18 ± 2657.83 ng/mL, CL = 3.24 ± 1.47 mL/min/kg, F = 96.8 %). Further in vivo efficacy studies illustrated that 9a was capable of ameliorating formalin-induced pain and inhibiting capsaicin-induced ear edema.
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Affiliation(s)
- Wenli Chen
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; Hefei Industrial Pharmaceutical Institute Co., Ltd., Hefei, Anhui 230061, China
| | - Qinlong Xu
- Hefei Industrial Pharmaceutical Institute Co., Ltd., Hefei, Anhui 230061, China
| | - Xiaodong Ma
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Jiajia Mo
- Hefei Industrial Pharmaceutical Institute Co., Ltd., Hefei, Anhui 230061, China
| | - Gaofeng Lin
- Hefei Industrial Pharmaceutical Institute Co., Ltd., Hefei, Anhui 230061, China
| | - Guangwei He
- Hefei Industrial Pharmaceutical Institute Co., Ltd., Hefei, Anhui 230061, China
| | - Zhaoxing Chu
- Hefei Industrial Pharmaceutical Institute Co., Ltd., Hefei, Anhui 230061, China.
| | - Jiaming Li
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China.
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8
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Ren Q, Chu Z, Cheng L, Cheng H. [Characteristics and significance of outer retinal thickness changes in reticular macular disease]. Zhonghua Yan Ke Za Zhi 2022; 58:1024-1032. [PMID: 36480883 DOI: 10.3760/cma.j.cn112142-20220430-00222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Objective: To study the characteristics and significance of changes in the thickness of the outer retinal layer (ORL) outside the macula in patients with reticular macular disease (RMD). Methods: A cross-sectional study was conducted. The clinical data of patients who visited the Department of Ophthalmology of the First Affiliated Hospital of Guangzhou Medical University from February to September 2019 were retrospectively collected. Thirty-one patients with at least one eye (54 eyes in total) diagnosed with early/mid-stage age-related macular degeneration (AMD) were consecutively included in the AMD group, and 33 patients with at least one eye (64 eyes in total) showing subretinal wart-like deposits on optical coherence tomography images were consecutively included in the RMD group. Thirty-two volunteers aged between 50 to 90 years with a normal fundus in both eyes (64 eyes in total) were consecutively included in the healthy control (HC) group. Frequency domain optical coherence tomography was applied to examine and analyze the thickness features of the ORL, inner retinal layer and choroid at the macular fovea (F), 2 mm of the temporal edge (T), the nasal edge (N), the superior edge (S) and inferior edge (I) of the macular fovea in each group. The correlations of the thickness of ORL with the choroidal thickness and the blood flow density of the choriocapillaris layer in patients with RMD were also analyzed. Results: The thickness of ORL at the F, T, S and I sites in the RMD group was significantly thinner than that in the AMD and HC groups. The difference was most obvious at the F site [(90.27±8.93), (98.04±11.7) and (97.19±7.02)μm] in the RMD, AMD and HC groups, respectively; all P<0.01). In the logistic regression model with independent variables of the ORL thickness at the macular F site, gender and age, there was a significant association between the thickness of ORL at the F site and the incidence of RMD (odds ratio=0.926, P<0.05). The ORL and choroid in the eyes of patients with RMD were significantly thinner at the F site [(90.27±8.93) and (163.21±72.43) μm, respectively; both P<0.01] compared with the AMD [(98.04±11.7) and (235.34±64.15) μm, respectively] and HC [(97.19±7.02) and (240.08±62.27) μm, respectively] groups. However, the ORL and choroidal thickness did not show significant and strong linear correlations at multiple sites. In contrast, there was a significant linear correlation between the blood flow density of the choriocapillaris layer and the thickness of ORL at the F, T and S sites in patients with RMD (r=0.487, 0.722, 0.467, respectively; all P<0.05). Conclusions: The thickness of ORL outside the macula of eyes with RMD is thinner than that of healthy eyes and eyes with early/mid-stage AMD. The thinning of ORL outside the macula is related to the decrease in the blood flow density of the choriocapillaris layer in patients with RMD.
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Affiliation(s)
- Q Ren
- Department of Ophthalmology, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Z Chu
- Department of Ophthalmology, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - L Cheng
- Zhongshan Ophthalmic Centre, Sun Yat-sen University, State Key Laboratory of Ophthalmology, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou 510060, China
| | - H Cheng
- Department of Ophthalmology, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
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Yang X, Xia H, Li Y, Cheng Y, Wang Y, Xia Y, Yue Y, Cheng X, Chu Z. In vitro and Ex vivo Antioxidant Activity and Sustained Release Properties of Sinomenine-Loaded Liposomes-in-Hydrogel Biomaterials Simulating Cells-in-Extracellular Matrix. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221130699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Sinomenine (SIN), a natural product, has been used to treat rheumatoid arthritis (RA) in China for thousands of years. SIN has been developed for the treatment of RA by way of tablets and injections, but both dosage forms have been associated with severe adverse reactions. Making SIN into liposomes-in-hydrogel biomaterials for external use has a good slow-release effect and can play an important role in avoiding the first-pass effect, gastrointestinal reaction, and increasing the local action time of drugs. SIN-loaded liposomes were formed by the thin-film dispersion method, then SIN-loaded liposomes-in-hydrogels were prepared by combining the SIN-L with hyaluronic acid (HA) hydrogels. In this paper, the basic characteristics, In vitro and Ex vivo release, and antioxidant activity of SIN-loaded liposomes-in-hydrogels were studied. The results showed that SIN-loaded liposomes-in-hydrogels have good sustained-release and antioxidant effects, and the preparation is expected to be a good biomaterial.
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Affiliation(s)
- Xinying Yang
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, People's Republic of China
| | - Hongmei Xia
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, People's Republic of China
| | - Yufan Li
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, People's Republic of China
| | - Yongfeng Cheng
- Clinical College of Anhui Medical University, Hefei, People's Republic of China
- School of life science, University of Science and Technology of China, Hefei, People's Republic of China
| | - Yu Wang
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, People's Republic of China
| | - Ying Xia
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, People's Republic of China
| | - Yan Yue
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, People's Republic of China
| | - Xiaoman Cheng
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, People's Republic of China
| | - Zhaoxing Chu
- Hefei Yigong Pharmaceutical Co., Ltd, Hefei, People's Republic of China
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10
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He G, Wan S, Wu Y, Chu Z, Shen H, Zhang S, Chen L, Bao Z, Gu S, Huang J, Huang L, Gong G, Zou Y, Zhu Q, Xu Y. Discovery of the First Selective IDO2 Inhibitor As Novel Immunotherapeutic Avenues for Rheumatoid Arthritis. J Med Chem 2022; 65:14348-14365. [PMID: 35952367 DOI: 10.1021/acs.jmedchem.2c00263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Indoleamine 2,3-dioxygenase 2 (IDO2), a closely related homologue of well-studied immunomodulatory enzyme IDO1, has been identified as a pathogenic mediator of inflammatory autoimmunity in preclinical models. Therapeutic targeting IDO2 in autoimmune diseases has been challenging due to the lack of small-molecule IDO2 inhibitors. Here, based on our previously developed IDO1/IDO2 dual inhibitor, guided by the homology model of the IDO2 structure, we discovered compound 22, the most potent inhibitor targeting IDO2 with good in vitro inhibitory activity (IDO2 IC50 = 112 nM). Notably, treatment with 22 alleviated disease severity and reduced inflammatory cytokines in both the collagen-induced arthritis (CIA) mice model and adjuvant arthritis (AA) rat model. Our study offered for the first time a selective small-molecule IDO2 inhibitor 22 with IC50 at the nanomolar level, which may be used not only as a candidate compound for the treatment of autoimmune diseases but also as a tool compound for further IDO2-related mechanistic study.
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Affiliation(s)
- Guangchao He
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China.,Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Sheng Wan
- Department of Pharmacology, China Pharmaceutical University, Nanjing 211198, China
| | - Yunze Wu
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Zhaoxing Chu
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Hui Shen
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Shan Zhang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Linya Chen
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Zijing Bao
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Shuhui Gu
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Junzhang Huang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Lei Huang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Guoqing Gong
- Department of Pharmacology, China Pharmaceutical University, Nanjing 211198, China
| | - Yi Zou
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Qihua Zhu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China.,Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Yungen Xu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China.,Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
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11
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Xu Q, Hu M, Li J, Ma X, Chu Z, Zhu Q, Zhang Y, Zhu P, Huang Y, He G. Discovery of novel brain-penetrant GluN2B NMDAR antagonists via pharmacophore-merging strategy as anti-stroke therapeutic agents. Eur J Med Chem 2022; 227:113876. [PMID: 34710748 DOI: 10.1016/j.ejmech.2021.113876] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 09/23/2021] [Accepted: 09/26/2021] [Indexed: 01/01/2023]
Abstract
In this work, a novel structural series of brain-penetrant GluN2B NMDAR antagonists were designed, synthesized and biologically evaluated as anti-stroke therapeutic agents via merging the structures of NBP and known GluN2B ligands. Approximately half of them exhibited superior neuroprotective activity to NBP against NMDA-induced neurotoxicity in hippocampal neurons at 10 μM, and compound 45e and 45f exerted equipotent activity to ifenprodil, an approved GluN2B- selective NMDAR antagonist. In particular, 45e, with the most potent neuroprotective activity throughout this series, displayed dramatically enhanced activity (Ki = 3.26 nM) compared to ifenprodil (Ki = 14.80 nM) in Radioligand Competitive Binding Assay, and remarkable inhibition (IC50 = 79.32 nM) against GluN1/GluN2B receptor-mediated current in Patch Clamp Assay. Meanwhile, 45e and its enantiomers exhibited low inhibition rate against the current mediated by other investigated receptors at the concentration of 10 μM, indicating their favorable selectivity for GluN1/GluN2B. In the rat model of middle cerebral artery ischemia (MCAO), 45e exerted comparable therapeutic efficacy to ifenprodil at the same dosage. In addition to the attractive in vitro and in vivo potency, 45e displayed a favorable bioavailability (F = 63.37%) and an excellent brain exposure. In further repeated dose toxicity experiments, compound 45e demonstrated an acceptable safety profile. With the above merits, 45e is worthy of further functional investigation as a novel anti-stroke therapeutic agent.
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Affiliation(s)
- Qinlong Xu
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China
| | - Mengqi Hu
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China
| | - Jiaming Li
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China.
| | - Xiaodong Ma
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Zhaoxing Chu
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China; China Pharmaceutical University, Nanjing, 210009, China
| | - Qihua Zhu
- China Pharmaceutical University, Nanjing, 210009, China
| | - Yanchun Zhang
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Panhu Zhu
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Yuanzheng Huang
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Guangwei He
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China
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12
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He X, He G, Chu Z, Wu H, Wang J, Ge Y, Shen H, Zhang S, Shan J, Peng K, Wei Z, Zou Y, Xu Y, Zhu Q. Discovery of the First Potent IDO1/IDO2 Dual Inhibitors: A Promising Strategy for Cancer Immunotherapy. J Med Chem 2021; 64:17950-17968. [PMID: 34854662 DOI: 10.1021/acs.jmedchem.1c01305] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Indoleamine 2,3-dioxygenase-1 (IDO1) plays an important role in tumor immune escape. However, unsatisfactory clinical efficacies of selective IDO1 inhibitors have impeded their further development, suggesting that they do not exert sufficient antitumor effects by selectively inhibiting IDO1. IDO2, an isoenzyme of IDO1, is overexpressed in some human tumors, and emerging evidence suggests that concomitant inhibition of IDO1/2 may have synergistic effects in cancer treatment, revealing a promising cancer immunotherapeutic strategy. Herein, we describe the discovery of compound 4t, the first inhibitor targeting both IDO1/2 that has excellent in vitro inhibitory activity (IDO1 IC50 = 28 nM and IDO2 IC50 = 144 nM). Notably, 4t (TGI = 69.7%) exhibited significantly stronger in vivo antitumor potency than epacadostat (TGI = 49.4%) in CT26 xenograft mouse models, highlighting the advantages of IDO1/2 dual inhibitors for tumor immunotherapy. Preliminary mechanistic studies in vivo further identified that 4t exerts its antitumor effect by inhibiting IDO1/2.
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Affiliation(s)
- Xin He
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Guangchao He
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Zhaoxing Chu
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Huanhuan Wu
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Junjie Wang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Yiran Ge
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Hui Shen
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Shan Zhang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Jinxi Shan
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Kewen Peng
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Zhifeng Wei
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China
| | - Yi Zou
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Yungen Xu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China.,Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Qihua Zhu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China.,Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, China
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Abi B, Albahri T, Al-Kilani S, Allspach D, Alonzi LP, Anastasi A, Anisenkov A, Azfar F, Badgley K, Baeßler S, Bailey I, Baranov VA, Barlas-Yucel E, Barrett T, Barzi E, Basti A, Bedeschi F, Behnke A, Berz M, Bhattacharya M, Binney HP, Bjorkquist R, Bloom P, Bono J, Bottalico E, Bowcock T, Boyden D, Cantatore G, Carey RM, Carroll J, Casey BCK, Cauz D, Ceravolo S, Chakraborty R, Chang SP, Chapelain A, Chappa S, Charity S, Chislett R, Choi J, Chu Z, Chupp TE, Convery ME, Conway A, Corradi G, Corrodi S, Cotrozzi L, Crnkovic JD, Dabagov S, De Lurgio PM, Debevec PT, Di Falco S, Di Meo P, Di Sciascio G, Di Stefano R, Drendel B, Driutti A, Duginov VN, Eads M, Eggert N, Epps A, Esquivel J, Farooq M, Fatemi R, Ferrari C, Fertl M, Fiedler A, Fienberg AT, Fioretti A, Flay D, Foster SB, Friedsam H, Frlež E, Froemming NS, Fry J, Fu C, Gabbanini C, Galati MD, Ganguly S, Garcia A, Gastler DE, George J, Gibbons LK, Gioiosa A, Giovanetti KL, Girotti P, Gohn W, Gorringe T, Grange J, Grant S, Gray F, Haciomeroglu S, Hahn D, Halewood-Leagas T, Hampai D, Han F, Hazen E, Hempstead J, Henry S, Herrod AT, Hertzog DW, Hesketh G, Hibbert A, Hodge Z, Holzbauer JL, Hong KW, Hong R, Iacovacci M, Incagli M, Johnstone C, Johnstone JA, Kammel P, Kargiantoulakis M, Karuza M, Kaspar J, Kawall D, Kelton L, Keshavarzi A, Kessler D, Khaw KS, Khechadoorian Z, Khomutov NV, Kiburg B, Kiburg M, Kim O, Kim SC, Kim YI, King B, Kinnaird N, Korostelev M, Kourbanis I, Kraegeloh E, Krylov VA, Kuchibhotla A, Kuchinskiy NA, Labe KR, LaBounty J, Lancaster M, Lee MJ, Lee S, Leo S, Li B, Li D, Li L, Logashenko I, Lorente Campos A, Lucà A, Lukicov G, Luo G, Lusiani A, Lyon AL, MacCoy B, Madrak R, Makino K, Marignetti F, Mastroianni S, Maxfield S, McEvoy M, Merritt W, Mikhailichenko AA, Miller JP, Miozzi S, Morgan JP, Morse WM, Mott J, Motuk E, Nath A, Newton D, Nguyen H, Oberling M, Osofsky R, Ostiguy JF, Park S, Pauletta G, Piacentino GM, Pilato RN, Pitts KT, Plaster B, Počanić D, Pohlman N, Polly CC, Popovic M, Price J, Quinn B, Raha N, Ramachandran S, Ramberg E, Rider NT, Ritchie JL, Roberts BL, Rubin DL, Santi L, Sathyan D, Schellman H, Schlesier C, Schreckenberger A, Semertzidis YK, Shatunov YM, Shemyakin D, Shenk M, Sim D, Smith MW, Smith A, Soha AK, Sorbara M, Stöckinger D, Stapleton J, Still D, Stoughton C, Stratakis D, Strohman C, Stuttard T, Swanson HE, Sweetmore G, Sweigart DA, Syphers MJ, Tarazona DA, Teubner T, Tewsley-Booth AE, Thomson K, Tishchenko V, Tran NH, Turner W, Valetov E, Vasilkova D, Venanzoni G, Volnykh VP, Walton T, Warren M, Weisskopf A, Welty-Rieger L, Whitley M, Winter P, Wolski A, Wormald M, Wu W, Yoshikawa C. Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm. Phys Rev Lett 2021; 126:141801. [PMID: 33891447 DOI: 10.1103/physrevlett.126.141801] [Citation(s) in RCA: 111] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 03/25/2021] [Indexed: 06/12/2023]
Abstract
We present the first results of the Fermilab National Accelerator Laboratory (FNAL) Muon g-2 Experiment for the positive muon magnetic anomaly a_{μ}≡(g_{μ}-2)/2. The anomaly is determined from the precision measurements of two angular frequencies. Intensity variation of high-energy positrons from muon decays directly encodes the difference frequency ω_{a} between the spin-precession and cyclotron frequencies for polarized muons in a magnetic storage ring. The storage ring magnetic field is measured using nuclear magnetic resonance probes calibrated in terms of the equivalent proton spin precession frequency ω[over ˜]_{p}^{'} in a spherical water sample at 34.7 °C. The ratio ω_{a}/ω[over ˜]_{p}^{'}, together with known fundamental constants, determines a_{μ}(FNAL)=116 592 040(54)×10^{-11} (0.46 ppm). The result is 3.3 standard deviations greater than the standard model prediction and is in excellent agreement with the previous Brookhaven National Laboratory (BNL) E821 measurement. After combination with previous measurements of both μ^{+} and μ^{-}, the new experimental average of a_{μ}(Exp)=116 592 061(41)×10^{-11} (0.35 ppm) increases the tension between experiment and theory to 4.2 standard deviations.
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Affiliation(s)
- B Abi
- University of Oxford, Oxford, United Kingdom
| | - T Albahri
- University of Liverpool, Liverpool, United Kingdom
| | - S Al-Kilani
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - D Allspach
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - L P Alonzi
- University of Washington, Seattle, Washington, USA
| | | | - A Anisenkov
- Budker Institute of Nuclear Physics, Novosibirsk, Russia
| | - F Azfar
- University of Oxford, Oxford, United Kingdom
| | - K Badgley
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - S Baeßler
- University of Virginia, Charlottesville, Virginia, USA
| | - I Bailey
- Lancaster University, Lancaster, United Kingdom
| | - V A Baranov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - E Barlas-Yucel
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - T Barrett
- Cornell University, Ithaca, New York, USA
| | - E Barzi
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - A Basti
- INFN, Sezione di Pisa, Pisa, Italy
- Università di Pisa, Pisa, Italy
| | | | - A Behnke
- Northern Illinois University, DeKalb, Illinois, USA
| | - M Berz
- Michigan State University, East Lansing, Michigan, USA
| | | | - H P Binney
- University of Washington, Seattle, Washington, USA
| | | | - P Bloom
- North Central College, Naperville, Illinois, USA
| | - J Bono
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - E Bottalico
- INFN, Sezione di Pisa, Pisa, Italy
- Università di Pisa, Pisa, Italy
| | - T Bowcock
- University of Liverpool, Liverpool, United Kingdom
| | - D Boyden
- Northern Illinois University, DeKalb, Illinois, USA
| | - G Cantatore
- INFN, Sezione di Trieste, Trieste, Italy
- Università di Trieste, Trieste, Italy
| | - R M Carey
- Boston University, Boston, Massachusetts, USA
| | - J Carroll
- University of Liverpool, Liverpool, United Kingdom
| | - B C K Casey
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - D Cauz
- INFN Gruppo Collegato di Udine, Sezione di Trieste, Udine, Italy
- Università di Udine, Udine, Italy
| | - S Ceravolo
- INFN, Laboratori Nazionali di Frascati, Frascati, Italy
| | | | - S P Chang
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | | | - S Chappa
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - S Charity
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - R Chislett
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - J Choi
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - Z Chu
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - T E Chupp
- University of Michigan, Ann Arbor, Michigan, USA
| | - M E Convery
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - A Conway
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | - G Corradi
- INFN, Laboratori Nazionali di Frascati, Frascati, Italy
| | - S Corrodi
- Argonne National Laboratory, Lemont, Illinois, USA
| | - L Cotrozzi
- INFN, Sezione di Pisa, Pisa, Italy
- Università di Pisa, Pisa, Italy
| | - J D Crnkovic
- Brookhaven National Laboratory, Upton, New York, USA
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- University of Mississippi, University, Mississippi, USA
| | - S Dabagov
- INFN, Laboratori Nazionali di Frascati, Frascati, Italy
| | | | - P T Debevec
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | | | - P Di Meo
- INFN, Sezione di Napoli, Napoli, Italy
| | | | - R Di Stefano
- INFN, Sezione di Napoli, Napoli, Italy
- Università di Cassino e del Lazio Meridionale, Cassino, Italy
| | - B Drendel
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - A Driutti
- INFN, Sezione di Trieste, Trieste, Italy
- Università di Udine, Udine, Italy
- University of Kentucky, Lexington, Kentucky, USA
| | - V N Duginov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - M Eads
- Northern Illinois University, DeKalb, Illinois, USA
| | - N Eggert
- Cornell University, Ithaca, New York, USA
| | - A Epps
- Northern Illinois University, DeKalb, Illinois, USA
| | - J Esquivel
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Farooq
- University of Michigan, Ann Arbor, Michigan, USA
| | - R Fatemi
- University of Kentucky, Lexington, Kentucky, USA
| | - C Ferrari
- INFN, Sezione di Pisa, Pisa, Italy
- Istituto Nazionale di Ottica-Consiglio Nazionale delle Ricerche, Pisa, Italy
| | - M Fertl
- Institute of Physics and Cluster of Excellence PRISMA+, Johannes Gutenberg University Mainz, Mainz, Germany
- University of Washington, Seattle, Washington, USA
| | - A Fiedler
- Northern Illinois University, DeKalb, Illinois, USA
| | - A T Fienberg
- University of Washington, Seattle, Washington, USA
| | - A Fioretti
- INFN, Sezione di Pisa, Pisa, Italy
- Istituto Nazionale di Ottica-Consiglio Nazionale delle Ricerche, Pisa, Italy
| | - D Flay
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | - S B Foster
- Boston University, Boston, Massachusetts, USA
| | - H Friedsam
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - E Frlež
- University of Virginia, Charlottesville, Virginia, USA
| | - N S Froemming
- Northern Illinois University, DeKalb, Illinois, USA
- University of Washington, Seattle, Washington, USA
| | - J Fry
- University of Virginia, Charlottesville, Virginia, USA
| | - C Fu
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - C Gabbanini
- INFN, Sezione di Pisa, Pisa, Italy
- Istituto Nazionale di Ottica-Consiglio Nazionale delle Ricerche, Pisa, Italy
| | - M D Galati
- INFN, Sezione di Pisa, Pisa, Italy
- Università di Pisa, Pisa, Italy
| | - S Ganguly
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - A Garcia
- University of Washington, Seattle, Washington, USA
| | - D E Gastler
- Boston University, Boston, Massachusetts, USA
| | - J George
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | | | - A Gioiosa
- INFN, Sezione di Pisa, Pisa, Italy
- Università del Molise, Campobasso, Italy
| | - K L Giovanetti
- Department of Physics and Astronomy, James Madison University, Harrisonburg, Virginia, USA
| | - P Girotti
- INFN, Sezione di Pisa, Pisa, Italy
- Università di Pisa, Pisa, Italy
| | - W Gohn
- University of Kentucky, Lexington, Kentucky, USA
| | - T Gorringe
- University of Kentucky, Lexington, Kentucky, USA
| | - J Grange
- Argonne National Laboratory, Lemont, Illinois, USA
- University of Michigan, Ann Arbor, Michigan, USA
| | - S Grant
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - F Gray
- Regis University, Denver, Colorado, USA
| | - S Haciomeroglu
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - D Hahn
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | | | - D Hampai
- INFN, Laboratori Nazionali di Frascati, Frascati, Italy
| | - F Han
- University of Kentucky, Lexington, Kentucky, USA
| | - E Hazen
- Boston University, Boston, Massachusetts, USA
| | - J Hempstead
- University of Washington, Seattle, Washington, USA
| | - S Henry
- University of Oxford, Oxford, United Kingdom
| | - A T Herrod
- University of Liverpool, Liverpool, United Kingdom
| | - D W Hertzog
- University of Washington, Seattle, Washington, USA
| | - G Hesketh
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - A Hibbert
- University of Liverpool, Liverpool, United Kingdom
| | - Z Hodge
- University of Washington, Seattle, Washington, USA
| | - J L Holzbauer
- University of Mississippi, University, Mississippi, USA
| | - K W Hong
- University of Virginia, Charlottesville, Virginia, USA
| | - R Hong
- Argonne National Laboratory, Lemont, Illinois, USA
- University of Kentucky, Lexington, Kentucky, USA
| | - M Iacovacci
- INFN, Sezione di Napoli, Napoli, Italy
- Università di Napoli, Napoli, Italy
| | | | - C Johnstone
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - J A Johnstone
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - P Kammel
- University of Washington, Seattle, Washington, USA
| | | | - M Karuza
- INFN, Sezione di Trieste, Trieste, Italy
- University of Rijeka, Rijeka, Croatia
| | - J Kaspar
- University of Washington, Seattle, Washington, USA
| | - D Kawall
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | - L Kelton
- University of Kentucky, Lexington, Kentucky, USA
| | - A Keshavarzi
- Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
| | - D Kessler
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | - K S Khaw
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China
- University of Washington, Seattle, Washington, USA
| | | | - N V Khomutov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - B Kiburg
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Kiburg
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
- North Central College, Naperville, Illinois, USA
| | - O Kim
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - S C Kim
- Cornell University, Ithaca, New York, USA
| | - Y I Kim
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - B King
- University of Liverpool, Liverpool, United Kingdom
| | - N Kinnaird
- Boston University, Boston, Massachusetts, USA
| | | | - I Kourbanis
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - E Kraegeloh
- University of Michigan, Ann Arbor, Michigan, USA
| | - V A Krylov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - A Kuchibhotla
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | | | - K R Labe
- Cornell University, Ithaca, New York, USA
| | - J LaBounty
- University of Washington, Seattle, Washington, USA
| | - M Lancaster
- Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
| | - M J Lee
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - S Lee
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - S Leo
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - B Li
- Argonne National Laboratory, Lemont, Illinois, USA
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - D Li
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - L Li
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - I Logashenko
- Budker Institute of Nuclear Physics, Novosibirsk, Russia
| | | | - A Lucà
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - G Lukicov
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - G Luo
- Northern Illinois University, DeKalb, Illinois, USA
| | - A Lusiani
- INFN, Sezione di Pisa, Pisa, Italy
- Scuola Normale Superiore, Pisa, Italy
| | - A L Lyon
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - B MacCoy
- University of Washington, Seattle, Washington, USA
| | - R Madrak
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - K Makino
- Michigan State University, East Lansing, Michigan, USA
| | - F Marignetti
- INFN, Sezione di Napoli, Napoli, Italy
- Università di Cassino e del Lazio Meridionale, Cassino, Italy
| | | | - S Maxfield
- University of Liverpool, Liverpool, United Kingdom
| | - M McEvoy
- Northern Illinois University, DeKalb, Illinois, USA
| | - W Merritt
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | | | - J P Miller
- Boston University, Boston, Massachusetts, USA
| | - S Miozzi
- INFN, Sezione di Roma Tor Vergata, Roma, Italy
| | - J P Morgan
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - W M Morse
- Brookhaven National Laboratory, Upton, New York, USA
| | - J Mott
- Boston University, Boston, Massachusetts, USA
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - E Motuk
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - A Nath
- INFN, Sezione di Napoli, Napoli, Italy
- Università di Napoli, Napoli, Italy
| | - D Newton
- University of Liverpool, Liverpool, United Kingdom
| | - H Nguyen
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Oberling
- Argonne National Laboratory, Lemont, Illinois, USA
| | - R Osofsky
- University of Washington, Seattle, Washington, USA
| | - J-F Ostiguy
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - S Park
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - G Pauletta
- INFN Gruppo Collegato di Udine, Sezione di Trieste, Udine, Italy
- Università di Udine, Udine, Italy
| | - G M Piacentino
- INFN, Sezione di Roma Tor Vergata, Roma, Italy
- Università del Molise, Campobasso, Italy
| | - R N Pilato
- INFN, Sezione di Pisa, Pisa, Italy
- Università di Pisa, Pisa, Italy
| | - K T Pitts
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - B Plaster
- University of Kentucky, Lexington, Kentucky, USA
| | - D Počanić
- University of Virginia, Charlottesville, Virginia, USA
| | - N Pohlman
- Northern Illinois University, DeKalb, Illinois, USA
| | - C C Polly
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Popovic
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - J Price
- University of Liverpool, Liverpool, United Kingdom
| | - B Quinn
- University of Mississippi, University, Mississippi, USA
| | - N Raha
- INFN, Sezione di Pisa, Pisa, Italy
| | | | - E Ramberg
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - N T Rider
- Cornell University, Ithaca, New York, USA
| | - J L Ritchie
- Department of Physics, University of Texas at Austin, Austin, Texas, USA
| | - B L Roberts
- Boston University, Boston, Massachusetts, USA
| | - D L Rubin
- Cornell University, Ithaca, New York, USA
| | - L Santi
- INFN Gruppo Collegato di Udine, Sezione di Trieste, Udine, Italy
- Università di Udine, Udine, Italy
| | - D Sathyan
- Boston University, Boston, Massachusetts, USA
| | - H Schellman
- Northwestern University, Evanston, Illinois, USA
| | - C Schlesier
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - A Schreckenberger
- Boston University, Boston, Massachusetts, USA
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Department of Physics, University of Texas at Austin, Austin, Texas, USA
| | - Y K Semertzidis
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Y M Shatunov
- Budker Institute of Nuclear Physics, Novosibirsk, Russia
| | - D Shemyakin
- Budker Institute of Nuclear Physics, Novosibirsk, Russia
| | - M Shenk
- Northern Illinois University, DeKalb, Illinois, USA
| | - D Sim
- University of Liverpool, Liverpool, United Kingdom
| | - M W Smith
- INFN, Sezione di Pisa, Pisa, Italy
- University of Washington, Seattle, Washington, USA
| | - A Smith
- University of Liverpool, Liverpool, United Kingdom
| | - A K Soha
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Sorbara
- INFN, Sezione di Roma Tor Vergata, Roma, Italy
- Università di Roma Tor Vergata, Rome, Italy
| | - D Stöckinger
- Institut für Kern-und Teilchenphysik, Technische Universität Dresden, Dresden, Germany
| | - J Stapleton
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - D Still
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - C Stoughton
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - D Stratakis
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - C Strohman
- Cornell University, Ithaca, New York, USA
| | - T Stuttard
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - H E Swanson
- University of Washington, Seattle, Washington, USA
| | - G Sweetmore
- Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
| | | | - M J Syphers
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
- Northern Illinois University, DeKalb, Illinois, USA
| | - D A Tarazona
- Michigan State University, East Lansing, Michigan, USA
| | - T Teubner
- University of Liverpool, Liverpool, United Kingdom
| | | | - K Thomson
- University of Liverpool, Liverpool, United Kingdom
| | - V Tishchenko
- Brookhaven National Laboratory, Upton, New York, USA
| | - N H Tran
- Boston University, Boston, Massachusetts, USA
| | - W Turner
- University of Liverpool, Liverpool, United Kingdom
| | - E Valetov
- Lancaster University, Lancaster, United Kingdom
- Michigan State University, East Lansing, Michigan, USA
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China
| | - D Vasilkova
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | | | - V P Volnykh
- Joint Institute for Nuclear Research, Dubna, Russia
| | - T Walton
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Warren
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - A Weisskopf
- Michigan State University, East Lansing, Michigan, USA
| | - L Welty-Rieger
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Whitley
- University of Liverpool, Liverpool, United Kingdom
| | - P Winter
- Argonne National Laboratory, Lemont, Illinois, USA
| | - A Wolski
- University of Liverpool, Liverpool, United Kingdom
| | - M Wormald
- University of Liverpool, Liverpool, United Kingdom
| | - W Wu
- University of Mississippi, University, Mississippi, USA
| | - C Yoshikawa
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
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Chu Z, Xu Q, Zhu Q, Ma X, Mo J, Lin G, Zhao Y, Gu Y, Bian L, Shao L, Guo J, Ye W, Li J, He G, Xu Y. Design, synthesis and biological evaluation of novel benzoxaborole derivatives as potent PDE4 inhibitors for topical treatment of atopic dermatitis. Eur J Med Chem 2021; 213:113171. [PMID: 33482600 DOI: 10.1016/j.ejmech.2021.113171] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/07/2021] [Accepted: 01/07/2021] [Indexed: 02/06/2023]
Abstract
In this work, a series of structurally novel benzoxaborole derivatives were designed, synthesized and biologically evaluated as PDE4 inhibitors for battling atopic dermatitis (AD). Among them, the majority exhibited superior PDE4B inhibitory activities to that of the lead compound Crisaborole, an approved PDE4 inhibitor. In particular, 72, the most potent PDE4B inhibitor throughout this series, displayed 136-fold improved enzymatic activity (IC50 = 0.42 nM) as compared to Crisaborole (IC50 = 57.20 nM), along with favorable isoform specificity. In the phorbol ester (PMA)-induced mouse ear oedema model, 72 exerted remarkably greater efficacy than Crisaborole at the same dosage (P < 0.05). Moreover, the ointment of 72 exerted dramatically enhanced therapeutic potency than the ointment of Crisaborole (P < 0.05) in the calcipotriol-induced mouse AD model. In addition to the potent in vitro and in vivo activity, 72 displayed favorable safety in the repeated oral dose toxicity study and did not exhibit phototoxicity. With the above attractive biological performance, 72 is worthy of further functional investigation as a novel anti-AD therapeutic agent.
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Affiliation(s)
- Zhaoxing Chu
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, China; Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing, 21009, China; Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China
| | - Qinlong Xu
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China; Department of Medicinal Chemistry, Anhui University of Chinese Medicine, Hefei, 230031, China
| | - Qihua Zhu
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, China; Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing, 21009, China
| | - Xiaodong Ma
- Department of Medicinal Chemistry, Anhui University of Chinese Medicine, Hefei, 230031, China
| | - Jiajia Mo
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China
| | - Gaofeng Lin
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China
| | - Yan Zhao
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China
| | - Yuanfeng Gu
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China
| | - Lincui Bian
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China
| | - Li Shao
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China
| | - Jing Guo
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China
| | - Wenfeng Ye
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China
| | - Jiaming Li
- Department of Medicinal Chemistry, Anhui University of Chinese Medicine, Hefei, 230031, China
| | - Guangwei He
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei, 230088, China.
| | - Yungen Xu
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, China; Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing, 21009, China.
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15
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Li P, Huang J, Geng D, Liu P, Chu Z, Zou J, Yang G, Liu L. Semi-Mechanistic Modeling of HY-021068 Based on Irreversible Inhibition of Thromboxane Synthetase. Front Pharmacol 2021; 11:588286. [PMID: 33390963 PMCID: PMC7774308 DOI: 10.3389/fphar.2020.588286] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 10/13/2020] [Indexed: 11/13/2022] Open
Abstract
Background: HY-021068 [4-(2-(1H-imidazol-1-yl) ethoxy)-3-methoxybenzoate], developed by Hefei Industrial Pharmaceutical Institute Co., Ltd. (Anhui, China), is a potential thromboxane synthetase inhibitor under development as an anti-platelet agent for the treatment of stroke. A semi-mechanistic pharmacokinetic/pharmacodynamic (PK/PD) model was developed to characterize the PK of HY-021068 and its platelet aggregation inhibitory effect in beagle dogs. Method: Beagle dogs received single oral administration of 2.5 mg/kg HY-021068 or consecutively oral administration of 5 mg/kg HY-021068 once daily for 7 days. The plasma concentration of HY-021068 and the platelet aggregation rate (PAR) were determined by liquid chromatography tandem-mass spectrometry (LC-MS/MS) assay and a photometric method, respectively. The PK/PD data was sequentially fitted by Phoenix NLME. The PK/PD parameters of HY-021068 in beagle dogs were estimated by 2.5 and 5 mg/kg dosing on the 1st day, and then used to simulate the PAR of HY-021068 on the 7th day after 5 mg/kg dosing daily. Result: A one-compartment model with saturable Michaelis-Menten elimination was best fitted to the PK of HY-021068. A mechanistic PD model based on irreversible inhibition of thromboxane synthetase was constructed to describe the relationship between plasma concentration of HY-021068 and PAR. Diagnostic plots showed no obvious bias. Visual predictive check confirmed the stability and reliability of the model. Most of PK/PD observed data on the 7th day after 5 mg/kg dosing fell in the 90% prediction interval. Conclusion: We established a semi-mechanistic PK/PD model for characterizing the PK of HY-021068 and its anti-platelet effect in beagle dogs. The model can be used to predict the concentration and PAR under different dosage regimen of HY-021068, and might be served as a reference for dose design in the future clinical studies.
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Affiliation(s)
- Ping Li
- Center of Pharmacokinetics and Metabolism, School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Jie Huang
- Center of Clinical Pharmacology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Donghao Geng
- Center of Pharmacokinetics and Metabolism, School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Peihua Liu
- Center of Pharmacokinetics and Metabolism, School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Zhaoxing Chu
- Center of Pharmacokinetics and Metabolism, School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Jianjun Zou
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Guoping Yang
- Center of Clinical Pharmacology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Li Liu
- Center of Pharmacokinetics and Metabolism, School of Pharmacy, China Pharmaceutical University, Nanjing, China
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16
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Zhang X, Shi L, Chu Z, Geng S. 141 All-trans Retinoic Acid Inhibits Cell Proliferation through Upregulation of TET2 in Squamous Cell Cancer. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.144] [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]
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17
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Li X, He G, Su F, Chu Z, Xu L, Zhang Y, Zhou J, Ding Y. Regorafenib-loaded poly (lactide-co-glycolide) microspheres designed to improve transarterial chemoembolization therapy for hepatocellular carcinoma. Asian J Pharm Sci 2020; 15:739-751. [PMID: 33363629 PMCID: PMC7750808 DOI: 10.1016/j.ajps.2020.01.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 12/28/2019] [Accepted: 01/18/2020] [Indexed: 02/06/2023] Open
Abstract
Transarterial chemoembolization (TACE) has been widely introduced to treat hepatocellular carcinoma (HCC) especially for unresectable patients for decades. However, TACE evokes an angiogenic response due to the secretion of vascular endothelial growth factor (VEGF), resulting in the formation of new blood vessels and eventually tumor recurrence. Thus, we aimed to develop regorafenib (REGO)-loaded poly (lactide-co-glycolide) (PLGA) microspheres that enabled localized and sustained drug delivery to limit proangiogenic responses following TACE in HCC treatment. REGO-loaded PLGA microspheres were prepared using the emulsion-solvent evaporation/extraction method, in which DMF was selected as an organic phase co-solvent. Accordingly, we optimized the proportion of DMF, which the optimal ratio to DCM was 1:9 (v/v). After preparation, the microspheres provided high drug loading capacity of 28.6%, high loading efficiency of 91.5%, and the average particle size of 149 µm for TACE. IR spectra and XRD were applied to confirming sufficient REGO entrapment. The in vitro release profiles demonstrated sustained drug release of microspheres for more than 30 d To confirm the role of REGO-loaded microspheres in TACE, the cell cytotoxic activity on HepG2 cells and anti-angiogenic effects in HUVECs Tube-formation assay were studied in combination with miriplatin. Moreover, the microspheres indicated the potential of antagonizing miriplatin resistance of HepG2 cells in vitro. Pharmacokinetics preliminary studies exhibited that REGO could be sustainably released from microspheres for more than 30 d after TACE in vivo. In vivo anti-tumor efficacy was further determined in HepG2 xenograft tumor mouse model, demonstrating that REGO microspheres could improve the antitumor efficacy of miriplatin remarkably compared with miriplatin monotherapy. In conclusion, the obtained REGO microspheres demonstrated promising therapeutic effects against HCC when combined with TACE.
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Affiliation(s)
- Xiang Li
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, Nanjing 210009, China.,Anhui Province Institute for Food and Drug Control, Hefei 230051, China
| | - Guangwei He
- Hefei Industrial Pharmaceutical Institute Co Ltd, Hefei 230051, China
| | - Feng Su
- Hefei Industrial Pharmaceutical Institute Co Ltd, Hefei 230051, China
| | - Zhaoxing Chu
- Hefei Industrial Pharmaceutical Institute Co Ltd, Hefei 230051, China
| | - Leiming Xu
- Anhui Province Institute for Food and Drug Control, Hefei 230051, China
| | - Yazhong Zhang
- Anhui Province Institute for Food and Drug Control, Hefei 230051, China
| | - Jianping Zhou
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, Nanjing 210009, China
| | - Yang Ding
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, Nanjing 210009, China
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18
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Wang J, Li H, He G, Chu Z, Peng K, Ge Y, Zhu Q, Xu Y. Discovery of Novel Dual Poly(ADP-ribose)polymerase and Phosphoinositide 3-Kinase Inhibitors as a Promising Strategy for Cancer Therapy. J Med Chem 2019; 63:122-139. [PMID: 31846325 DOI: 10.1021/acs.jmedchem.9b00622] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Concomitant inhibition of PARP and PI3K pathways has been recognized as a promising strategy for cancer therapy, which may expand the clinical utility of PARP inhibitors. Herein, we report the discovery of dual PARP/PI3K inhibitors that merge the pharmacophores of PARP and PI3K inhibitors. Among them, compound 15 stands out as the most promising candidate with potent inhibitory activities against both PARP-1/2 and PI3Kα/δ with pIC50 values greater than 8. Compound 15 displayed superior antiproliferative profiles against both BRCA-deficient and BRCA-proficient cancer cells in cellular assays. The prominent synergistic effects produced by the concomitant inhibition of the two targets were elucidated by comprehensive biochemical and cellular mechanistic studies. In vivo, 15 showed more efficacious antitumor activity than the corresponding drug combination (Olaparib + BKM120) in the MDA-MB-468 xenograft model with a tumor growth inhibitory rate of 73.4% without causing observable toxic effects. All of the results indicate that 15, a first potent dual PARP/PI3K inhibitor, is a highly effective anticancer compound.
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Li F, Xu Q, Zhu Q, Chu Z, Lin G, Mo J, Zhao Y, Li J, He G, Xu Y. Design, synthesis and biological evaluation of novel desloratadine derivatives with anti-inflammatory and H 1 antagonize activities. Bioorg Med Chem Lett 2019; 29:126712. [PMID: 31679973 DOI: 10.1016/j.bmcl.2019.126712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 09/07/2019] [Accepted: 09/19/2019] [Indexed: 11/16/2022]
Abstract
To improve the anti-inflammatory activity of desloratadine, we designed and synthesized a series of novel desloratadine derivatives. All compounds were evaluated for their anti-inflammatory and H1 antagonistic activities. Among them, compound 2c showed the strongest H1 antagonistic and anti-inflammatory activity. It also exhibited promising pharmacokinetic profiles and low toxicity. All these results suggest that compound 2c as a novel anti-allergic agent is worthy of further investigation.
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Affiliation(s)
- Feng Li
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China; Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei 230088, China
| | - Qinlong Xu
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei 230088, China; Anhui University of Chinese Medicine, Hefei 230031, China
| | - Qihua Zhu
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China; Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 21009, China
| | - Zhaoxing Chu
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China; Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei 230088, China
| | - Gaofeng Lin
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei 230088, China
| | - Jiajia Mo
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei 230088, China
| | - Yan Zhao
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei 230088, China
| | - Jiaming Li
- Anhui University of Chinese Medicine, Hefei 230031, China
| | - Guangwei He
- Hefei Institute of Pharmaceutical Industry Co., Ltd., Hefei 230088, China
| | - Yungen Xu
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China; Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 21009, China.
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20
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Zou C, Zuo X, Huang J, Hua Y, Yang S, Yang X, Guo C, Tan H, Chen J, Chu Z, Pei Q, Yang G. Phase I Trial of Pyragrel, a Novel Thromboxane Synthetase Inhibitor, to Evaluate the Safety, Tolerability, and Pharmacokinetics in Healthy Volunteers. Front Pharmacol 2019; 10:1231. [PMID: 31708774 PMCID: PMC6821791 DOI: 10.3389/fphar.2019.01231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 09/27/2019] [Indexed: 11/16/2022] Open
Abstract
Background and Objective: Inhibition of thrombosis and platelet aggregation through a thromboxane synthetase inhibitor proved to be an effective and promising treatment for cardiovascular and/or cerebrovascular disease (CCVD) patients. This phase I study evaluated the safety, tolerability, and pharmacokinetics of sodium pyragrel, a novel thromboxane A2 synthetase inhibitor, in healthy volunteers. Methods: A total of 84 healthy Chinese volunteers were enrolled in the study and randomized into one of five dosing regimens of intravenous pyragrel, which were single ascending dose (30 to 300 mg), multiple doses (pyragrel 180 mg once daily on Day 1 and Day 6, twice daily from Day 2 to Day 5), 3×3 Latin square crossover (60, 120, 240 mg), and a continuous dose (360 mg in 24 h), respectively. Plasma concentrations were determined using HPLC-MS/MS. Pharmacokinetics parameters were calculated with non-compartment analysis. Results: The maximum plasma concentrations of pyragrel were essentially reached at the end of the 3 h infusion. The pharmacokinetic process of pyragrel and two main metabolites (BBS and BJS) is linear over the 30–300 mg dose range, with no significant accumulation on multiple doses. The urinary excretion of pyragrel accounted for more than 70% of the total drug amount. Preliminary pharmacodynamic results demonstrated that the production of urinary 11-D-HTXB2 was time- and dose-dependently inhibited by single i.v. dose of pyragrel. Conclusions: Pyragrel was well tolerated after single ascending doses up to 300 mg, multiple doses of 180 mg, and continuous administration of 360 mg within 24 h. No drug-related, serious adverse drug reactions occurred during the five-part study. The most common pyragrel-related adverse events (AEs) were total bilirubin (TB)/direct bilirubin (DB) elevations with a relatively low incidence rate and seemed to be dose independent. Given the acceptable safety and appropriate pharmacokinetic properties of sodium pyragrel proven in this study, continued clinical development is warranted. The study was registered at http://www.chictr.org.cn (ChiCTR-IID-16010159).
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Affiliation(s)
- Chan Zou
- Center of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Xiaocong Zuo
- Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Jie Huang
- Center of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Ye Hua
- Department of Pharmacy, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Shuang Yang
- Center of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Xiaoyan Yang
- Center of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Can Guo
- Center of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Hongyi Tan
- Center of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Jun Chen
- Center of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Zhaoxing Chu
- Innovative Drug Design and Evaluation Center, Hefei Industrial Pharmaceutical Institute Co., Ltd, Anhui, China
| | - Qi Pei
- Center of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Guoping Yang
- Center of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, China
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21
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Chu Z, Zhang X, Li Q, Geng S. 128 CDC20 played an oncogenic role in human cSCC progression. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.204] [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: 10/27/2022]
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22
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Di N, Cheng W, Chen H, Zhai F, Liu Y, Mu X, Chu Z, Lu N, Liu X, Wang B. Utility of arterial spin labelling MRI for discriminating atypical high-grade glioma from primary central nervous system lymphoma. Clin Radiol 2018; 74:165.e1-165.e9. [PMID: 30415766 DOI: 10.1016/j.crad.2018.10.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 10/09/2018] [Indexed: 01/19/2023]
Abstract
AIM To evaluate the ability of arterial spin labelling (ASL) magnetic resonance imaging (MRI) in differentiating primary central nervous system lymphoma (PCNSL) from atypical high-grade glioma (HGG), as well as exploring the underlying pathological mechanisms. METHODS AND MATERIALS Twenty-three patients with PCNSL and 17 patients with atypical HGG who underwent ASL-MRI were identified retrospectively. Absolute cerebral blood flow (aCBF) and normalised cerebral blood flow (nCBF) values were obtained, and were compared between PCNSL and atypical HGG using the Mann-Whitney U-test. The performance in discriminating between PCNSL and atypical HGG was evaluated using receiver-operating characteristics analysis and area-under-the-curve (AUC) values for aCBF and nCBF. The correlation between microvessel density (MVD) and aCBF was determined by Spearman's correlation analysis. RESULTS Atypical HGG demonstrated significantly higher aCBF, nCBF, and MVD values than PCNSL (p<0.05). The diagnostic accuracy of discriminating PCNSL from atypical HGG showed AUC=0.877 (95% confidence interval [CI] 0.735-0.959) for aCBF, and AUC=0.836 (95% confidence interval [CI] 0.685-0.934) for nCBF. There was a moderate positive correlation between aCBF values of region of interest (ROI >30 mm2) in the enhanced area and MVD values (rho=0.579, p=0.0001), and a strong positive correlation between aCBF values MVD based on "point-to-point biopsy" (rho=0.83, p=0.0029). Interobserver agreements for aCBF and nCBF were excellent (ICC >0.75). CONCLUSIONS ASL perfusion MRI is a useful imaging technique for the discrimination between atypical HGG and PCNSL, which may be determined by the difference of MVD between them.
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Affiliation(s)
- N Di
- Department of Radiology, Binzhou Medical University Hospital, 661 Huanghe 2nd Rd, 256603 Binzhou, China; Department of Radiology, Huashan Hospital Fudan University, 12 Wulumuqi Rd. Middle, 200040 Shanghai, China
| | - W Cheng
- Department of Pharmacy, Binzhou Medical University Hospital, 661 Huanghe 2nd Rd, 256603 Binzhou, China
| | - H Chen
- Department of Radiology, Weifang Traditional Chinese Hospital, 1055 Weizhou Rd, 261000 Weifang, China
| | - F Zhai
- Department of Radiology, Binzhou Medical University Hospital, 661 Huanghe 2nd Rd, 256603 Binzhou, China
| | - Y Liu
- Department of Pediatrics, Binzhou Medical University Hospital, 661 Huanghe 2nd Rd, 256603 Binzhou, China
| | - X Mu
- Department of Radiology, Binzhou Medical University Hospital, 661 Huanghe 2nd Rd, 256603 Binzhou, China
| | - Z Chu
- Department of Radiology, Binzhou Medical University Hospital, 661 Huanghe 2nd Rd, 256603 Binzhou, China
| | - N Lu
- Department of Radiology, Huashan Hospital Fudan University, 12 Wulumuqi Rd. Middle, 200040 Shanghai, China
| | - X Liu
- Department of Radiology, Binzhou Medical University Hospital, 661 Huanghe 2nd Rd, 256603 Binzhou, China.
| | - B Wang
- Department of Medical Imaging and Nuclear, Binzhou Medical University, 346 Guanhai Rd, 264000 Yantai, China.
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Liu D, Zhang MY, Chu Z, Zhang M. Long non-coding RNA HOST2 enhances proliferation and metastasis in gastric cancer. Neoplasma 2018; 66:101-108. [PMID: 30509094 DOI: 10.4149/neo_2018_180414n238] [Citation(s) in RCA: 5] [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] [Received: 04/14/2018] [Accepted: 07/11/2018] [Indexed: 11/08/2022]
Abstract
This study investigates the influence of long noncoding RNA HOST2 on the biological functions of gastric cancer cells; including proliferation, migration and invasion. Differentially expressed lncRNAs in gastric cancer (GC) were screened by microarray analysis, and HOST2 expression in GC tissues and cell lines was determined by quantitative real-time PCR (qRT-PCR). GC cell proliferation, migration and invasion were detected by CCK-8, wound healing and transwell assays. Western blot investigated expression of epithelial-mesenchymal transition (EMT) related proteins, and association was established between over-expressed HOST2 and the number of patients with lymph node and distant metastasis. HOST2 expression was also positively related to GC cell invasion ability, and although its expression in the p-shHOST2 group was remarkably decreased, it was significantly higher than in the Mock and NC groups. Compared to the Mock and NC groups, the p-shHOST2 group presented significant decreases in proliferation and wound healing rates, and the reverse result was noted in the p-HOST2 group. In addition, the number of p-shHOST2 group invasive cells was remarkably less than in the Mock and NC group, and the opposite result was achieved in the p-HOST2 group. Moreover, p-HOST2 had more significant EMT, but this was suppressed in the p-shHOST2 group. Finally, HOST2 silencing suppressed GC cell proliferation, migration and invasion; and it could therefore be considered as a novel biomarker and therapeutic target in gastric cancer.
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Affiliation(s)
- D Liu
- Department of Spleen and Stomach, Chinese Medicine Hospital, Tianjin, China
| | - M Y Zhang
- Chinese Medicine Studio, Chinese Medicine Hospital, Tianjin, China
| | - Z Chu
- Department of Tumor, Chinese Medicine Hospital, Tianjin, China
| | - M Zhang
- Yao Medical College, Guangxi University of Traditional Chinese Medicine, Tianjin, China
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Geng S, Liu Y, Chu Z, Zhang X, Lian C. 199 TET2-mediated DNA hydroxymethylation epigenetically sensitizes melanoma to all-trans retinoic acid via BMI-1 pathway. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.204] [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: 10/17/2022]
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25
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Aguilera-Galvez C, Champouret N, Rietman H, Lin X, Wouters D, Chu Z, Jones J, Vossen J, Visser R, Wolters P, Vleeshouwers V. Two different R gene loci co-evolved with Avr2 of Phytophthora infestans and confer distinct resistance specificities in potato. Stud Mycol 2018; 89:105-115. [PMID: 29910517 PMCID: PMC6002340 DOI: 10.1016/j.simyco.2018.01.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Late blight, caused by the oomycete pathogen Phytophthora infestans, is the most devastating disease in potato. For sustainable management of this economically important disease, resistance breeding relies on the availability of resistance (R) genes. Such R genes against P. infestans have evolved in wild tuber-bearing Solanum species from North, Central and South America, upon co-evolution with cognate avirulence (Avr) genes. Here, we report how effectoromics screens with Avr2 of P. infestans revealed defense responses in diverse Solanum species that are native to Mexico and Peru. We found that the response to AVR2 in the Mexican Solanum species is mediated by R genes of the R2 family that resides on a major late blight locus on chromosome IV. In contrast, the response to AVR2 in Peruvian Solanum species is mediated by Rpi-mcq1, which resides on chromosome IX and does not belong to the R2 family. The data indicate that AVR2 recognition has evolved independently on two genetic loci in Mexican and Peruvian Solanum species, respectively. Detached leaf tests on potato cultivar 'Désirée' transformed with R genes from either the R2 or the Rpi-mcq1 locus revealed an overlapping, but distinct resistance profile to a panel of 18 diverse P. infestans isolates. The achieved insights in the molecular R - Avr gene interaction can lead to more educated exploitation of R genes and maximize the potential of generating more broad-spectrum, and potentially more durable control of the late blight disease in potato.
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Affiliation(s)
- C. Aguilera-Galvez
- Plant Breeding, Wageningen University and Research, Droevendaalsesteeg 1, Wageningen, 6708 PB, The Netherlands
| | - N. Champouret
- Plant Breeding, Wageningen University and Research, Droevendaalsesteeg 1, Wageningen, 6708 PB, The Netherlands
| | - H. Rietman
- Plant Breeding, Wageningen University and Research, Droevendaalsesteeg 1, Wageningen, 6708 PB, The Netherlands
| | - X. Lin
- Plant Breeding, Wageningen University and Research, Droevendaalsesteeg 1, Wageningen, 6708 PB, The Netherlands
| | - D. Wouters
- Plant Breeding, Wageningen University and Research, Droevendaalsesteeg 1, Wageningen, 6708 PB, The Netherlands
| | - Z. Chu
- The Sainsbury Laboratory, Norwich Research Park, Norwich, NR4 7UH, UK
| | - J.D.G. Jones
- The Sainsbury Laboratory, Norwich Research Park, Norwich, NR4 7UH, UK
| | - J.H. Vossen
- Plant Breeding, Wageningen University and Research, Droevendaalsesteeg 1, Wageningen, 6708 PB, The Netherlands
| | - R.G.F. Visser
- Plant Breeding, Wageningen University and Research, Droevendaalsesteeg 1, Wageningen, 6708 PB, The Netherlands
| | - P.J. Wolters
- Plant Breeding, Wageningen University and Research, Droevendaalsesteeg 1, Wageningen, 6708 PB, The Netherlands
| | - V.G.A.A. Vleeshouwers
- Plant Breeding, Wageningen University and Research, Droevendaalsesteeg 1, Wageningen, 6708 PB, The Netherlands
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Gao S, Xu Q, Li J, Chu Z, He G, Lin G, Zhu Z, Cui Y, Mo J, Guo J, Zhao Y. Design, Synthesis, and Biological Evaluation of Novel PDE-4 Inhibitors. CHINESE J ORG CHEM 2018. [DOI: 10.6023/cjoc201705042] [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: 11/24/2022]
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Peng S, Chu Z, Lu J, Li D, Wang Y, Yang S, Zhang Y. Heterologous Expression of Chaperones from Hyperthermophilic Archaea Inhibits Aminoglycoside-Induced Protein Misfolding in Escherichia coli. Biochemistry (Mosc) 2017; 82:1169-1175. [PMID: 29037137 DOI: 10.1134/s0006297917100091] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Aminoglycoside antibiotics affect protein translation fidelity and lead to protein aggregation and an increase in intracellular oxidative stress level as well. The overexpression of the chaperonin GroEL/GroES system promotes short-term tolerance to aminoglycosides in Escherichia coli. Here, we demonstrated that the coexpression of prefoldin or Hsp60 originating from the hyperthermophilic archaeon Pyrococcus furiosus in E. coli cells can rescue cell growth and inhibit protein aggregation induced by streptomycin exposure. The results of our study show that hyperthermophilic chaperones endow E. coli with a higher tolerance to streptomycin than the GroEL/GroES system, and that they exert better effects on the reduction of intracellular protein misfolding, indicating that these chaperones have unique features and functions.
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Affiliation(s)
- S Peng
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China.
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Chen H, Zhang L, Wang P, Su H, Wang W, Chu Z, Zhang L, Zhang X, Zhao Y. mTORC2 controls Th9 polarization and allergic airway inflammation. Allergy 2017; 72:1510-1520. [PMID: 28273354 DOI: 10.1111/all.13152] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/28/2017] [Indexed: 12/31/2022]
Abstract
BACKGROUND T helper type 9 (Th9) cells, a subpopulation of CD4+ T cells, play a critical role in the pathogenesis of allergic airway inflammation. However, it remains unknown whether mTORC2 regulates Th9 differentiation or function during allergic inflammation. METHODS T-cell-specific Rictor-deficient mice, a mouse model of allergic airway inflammation induced by ovalbumin (OVA) sensitization and a mouse model of adoptive transfer of induced Th9 cells, were used to address the roles of mTORC2 in the pathogenesis of allergic airway inflammation. The in vitro Th9 induction, multiple colors flow cytometry, real-time PCR, and Western blots were used to investigate the molecular effects of mTORC2 in Th9 induction. RESULTS The differentiation of naïve CD4+ T cells into Th9 cells was significantly diminished in the absence of Rictor, the core component of mTORC2. Using a mouse model of allergic airway inflammation induced by OVA sensitization, T-cell-specific Rictor-deficient mice show much less severe allergic airway inflammation characterized by decreased pathological alterations and fibrosis of the lungs, which was accompanied with reduced Th9 differentiation and infiltration. Importantly, the isolated Rictor-deficient Th9 cells mediate less severe allergic pathogenesis upon adoptive transfer. Rictor deficiency impairs Th9 cell differentiation by reducing IRF4 expression rather than affecting Foxo1/Foxo3a transcriptional activity, which is likely due to decreased Akt and/or STAT6 activation. CONCLUSIONS These findings uncover a novel role of mTORC2 in Th9 cell differentiation and may have important implications for therapeutic intervention of allergic diseases.
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Affiliation(s)
- H. Chen
- Transplantation Biology Research Division; State Key Laboratory of Membrane Biology; Institute of Zoology; Chinese Academy of Sciences; Beijing China
| | - L. Zhang
- Transplantation Biology Research Division; State Key Laboratory of Membrane Biology; Institute of Zoology; Chinese Academy of Sciences; Beijing China
| | - P. Wang
- Transplantation Biology Research Division; State Key Laboratory of Membrane Biology; Institute of Zoology; Chinese Academy of Sciences; Beijing China
| | - H. Su
- Transplantation Biology Research Division; State Key Laboratory of Membrane Biology; Institute of Zoology; Chinese Academy of Sciences; Beijing China
| | - W. Wang
- Department of Urology; Beijing Chaoyang Hospital; Capital Medical University; Chaoyang District Beijing China
| | - Z. Chu
- Transplantation Biology Research Division; State Key Laboratory of Membrane Biology; Institute of Zoology; Chinese Academy of Sciences; Beijing China
| | - L. Zhang
- Key Laboratory of Human Diseases Comparative Medicine; Ministry of Health; Beijing China
- Institute of Laboratory Animal Science; Key Laboratory of Human Diseases Comparative Medicine; Ministry of Health; Beijing China
- Institute of Laboratory Animal Science; Chinese Academy of Medical Sciences and Peking Union Medical College; Beijing China
| | - X. Zhang
- Department of Urology; Beijing Chaoyang Hospital; Capital Medical University; Chaoyang District Beijing China
| | - Y. Zhao
- Transplantation Biology Research Division; State Key Laboratory of Membrane Biology; Institute of Zoology; Chinese Academy of Sciences; Beijing China
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Zhang Y, Zhao J, Chu Z, Zhou J. Increasing prevalence of childhood overweight and obesity in a coastal province in China. Pediatr Obes 2016; 11:e22-e26. [PMID: 26403644 DOI: 10.1111/ijpo.12070] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 08/15/2015] [Accepted: 08/19/2015] [Indexed: 11/28/2022]
Abstract
BACKGROUND The increasing prevalence of childhood obesity constitutes a serious public health problem in both developed and developing countries. OBJECTIVES The present study examined the prevalent trends in overweight and obesity among children and adolescents in Shandong, China spanning 29 years (1985-2014). METHODS Data for this study were obtained from four cross-sectional surveys of schoolchildren carried out in 1985, 1995, 2005 and 2014 in Shandong Province, China. A total of 39 943 students aged 7-18 years were included in this study (14 458 in 1985, 7 198 in 1995, 8 568 in 2005 and 9 719 in 2014). RESULTS Using IOTF criteria, the prevalence of overweight and obesity increased from 1.73% and 0.05% for boys, 1.67% and 0.04% for girls in 1985 to 20.83% and 10.39% for boys, 15.81% and 4.35% for girls in 2014; Using World Health Organization criteria, the prevalence of overweight and obesity increased from 2.76% and 0.45% for boys, 2.46% and 0.11% for girls in 1985 to 20.30% and 18.16% for boys, 18.89% and 6.58% for girls in 2014, respectively. CONCLUSION Childhood overweight and obesity has entered the extensively epidemic stage in this region at present. Comprehensive strategies of intervention should include periodical monitoring, education on pattern of nutrition, oxygen-consuming physical exercises and healthy dietary behaviour.
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Affiliation(s)
- Y Zhang
- Shandong Center for Disease Control and Prevention, Shandong University Institute of Preventive Medicine, Jinan, Shandong, China
| | - J Zhao
- Shandong Center for Disease Control and Prevention, Shandong University Institute of Preventive Medicine, Jinan, Shandong, China
| | - Z Chu
- Shandong Center for Disease Control and Prevention, Shandong University Institute of Preventive Medicine, Jinan, Shandong, China
| | - J Zhou
- Shandong Center for Disease Control and Prevention, Shandong University Institute of Preventive Medicine, Jinan, Shandong, China
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Xu F, He S, Chu Z, Zhang Y, Tan L. Effects of Heat Treatment on Polyphenol Oxidase Activity and Textural Properties of Jackfruit Bulb. J FOOD PROCESS PRES 2015. [DOI: 10.1111/jfpp.12673] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- F. Xu
- Spice and Beverage Research Institute; CATAS; Wanning Hainan 571533 China
| | - S.Z. He
- Spice and Beverage Research Institute; CATAS; Wanning Hainan 571533 China
| | - Z. Chu
- Spice and Beverage Research Institute; CATAS; Wanning Hainan 571533 China
| | - Y.J. Zhang
- Spice and Beverage Research Institute; CATAS; Wanning Hainan 571533 China
| | - L.H. Tan
- Spice and Beverage Research Institute; CATAS; Wanning Hainan 571533 China
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Qi X, Blanco V, Chu Z, Vallabhapurapu S, Sulaiman M, Franco R. P-040 Phosphatidylserine Targeted Therapy of Pancreatic Cancer Using SapC-DOPS Nanovesicles. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv233.40] [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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Chu Z, Lin H, Liang X, Huang R, Tang J, Bao Y, Jiang J, Zhan Q, Zhou X. Association between axillary lymph node status and Ki67 labeling index in triple-negative medullary breast carcinoma. Jpn J Clin Oncol 2015; 45:637-41. [DOI: 10.1093/jjco/hyv052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Accepted: 03/21/2015] [Indexed: 11/14/2022] Open
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Chu Z, Niu B, Zhu H, He X, Bai C, Li G, Hua J. PRMT5 enhances generation of induced pluripotent stem cells from dairy goat embryonic fibroblasts via down-regulation of p53. Cell Prolif 2015; 48:29-38. [PMID: 25424361 PMCID: PMC6496593 DOI: 10.1111/cpr.12150] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 08/16/2014] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVES Protein arginine methyltransferase 5 (PRMT5), is thought to play a role in epigenetic reprogramming of mouse germ cells. However, up to now there has been little information concerning its expression profile and effects on generation of induced pluripotent stem cells (iPSCs) from somatic cells, in livestock. Here, we have explored PRMT5 expression profiles in dairy goats and its consequences to derivation of iPSCs from dairy goat embryonic fibroblasts (GEFs). MATERIALS AND METHODS We investigated effects of PRMT5 on iPS-like cells production in vitro. alkaline phosphatase (AP) staining, QRT-PCR and western blotting analysis of expression of related markers were used to evaluate efficiency of generation of iPSCs derived from GEFs. RESULTS These showed PRMT5 to be a conservative gene widely expressed in various tissues and different-aged testes. PRMT5 overexpression in combination with OCT3/4, SOX2, KLF4 and C-MYC (POSKM) significantly increased number of AP positive iPS-like colony-derived GEFs compared to OSKM alone, in our dairy goats. Moreover, our results demonstrated that PRMT5 overexpression stimulated GEF proliferation and down-regulated p53, p21 (a target gene of p53) and the apoptotic marker caspase 3, to enhance somatic cell reprogramming. CONCLUSION This study provides an efficient model for future studies on mechanisms underlying goat somatic cell reprogramming and differentiation.
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Affiliation(s)
- Z. Chu
- College of Veterinary MedicineShaanxi Centre of Stem Cells Engineering & TechnologyNorthwest A&F UniversityYanglingShaanxi712100China
| | - B. Niu
- College of Veterinary MedicineShaanxi Centre of Stem Cells Engineering & TechnologyNorthwest A&F UniversityYanglingShaanxi712100China
| | - H. Zhu
- College of Veterinary MedicineShaanxi Centre of Stem Cells Engineering & TechnologyNorthwest A&F UniversityYanglingShaanxi712100China
| | - X. He
- College of Veterinary MedicineShaanxi Centre of Stem Cells Engineering & TechnologyNorthwest A&F UniversityYanglingShaanxi712100China
| | - C. Bai
- Key Laboratory for Mammalian Reproductive Biology and BiotechnologyMinistry of EducationInner Mongolia UniversityHohhot010021China
| | - G. Li
- Key Laboratory for Mammalian Reproductive Biology and BiotechnologyMinistry of EducationInner Mongolia UniversityHohhot010021China
| | - J. Hua
- College of Veterinary MedicineShaanxi Centre of Stem Cells Engineering & TechnologyNorthwest A&F UniversityYanglingShaanxi712100China
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Yao X, Tang F, Yu M, Zhu H, Chu Z, Li M, Liu W, Hua J, Peng S. Expression profile of Nanos2 gene in dairy goat and its inhibitory effect on Stra8 during meiosis. Cell Prolif 2014; 47:396-405. [PMID: 25195564 DOI: 10.1111/cpr.12128] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Accepted: 06/15/2014] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVES Nanos2, an RNA-binding protein, belongs to the Nanos gene-coding family and contains two CCHC zinc-finger motifs. In mouse, it plays a pivotal role in male germ cell development, and self-renewal of spermatogonial stem cells. However, little is known of its expression pattern and functions in dairy goat testis. MATERIALS AND METHODS Immunohistochemistry and quantitative reverse transcription-polymerase chain reaction (qRT-PCR) were used to generate the expression profile of Nanos2 in dairy goat testis. Furthermore, its overexpression effects on male germline stem cells (mGSCs) were studied using qRT-PCR, immunofluorescence, dual-luciferase reporter assay and western blotting. RESULTS Nanos2 is a conservative gene expressed widely in various tissues, especially in pancreas, and it displays higher expression in adult testes than in other age groups. Overexpression of Nanos2 significantly downregulated meiosis-related genes, including Stra8 and Scp3, which induced inhibition of meiosis. Results from dual-luciferase reporter assay and western blotting indicated that Nanos2 directly downregulated Stra8 in goat GmGSCs. CONCLUSIONS Taken together, these results suggest that Nanos2 plays an important role in spermatogonia and that its overexpression restrained meiosis in the dairy goat.
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Affiliation(s)
- X Yao
- College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling, 712100, China; Shaanxi Stem Cell Engineering and Technology Research Center, Northwest Agriculture and Forestry University, Yangling, 712100, China
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Blanco V, Chu Z, Vallabhapurapu S, Sulaiman M, Kendler A, Curry R, Warnick R, Franco R, Qi X. NT-06 * PHOSPHATIDYLSERINE-SELECTIVE TARGETING AND ANTICANCER EFFECTS OF SapC-DOPS NANOVESICLES ON BRAIN TUMORS. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou265.6] [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: 11/12/2022] Open
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Sulaiman MK, Blanco V, Chu Z, Valabhurapu S, Franco R, Qi X. CS-32 * SapC-DOPS INDUCES Smac-AND Bax-MEDIATED MITOCHONDRIAL APOPTOSIS IN NEUROBLASTOMAS. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou242.32] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Zhang P, Liu XK, Chu Z, Ye JC, Li KL, Zhuang WL, Yang DJ, Jiang YF. Detection of interleukin-33 in serum and carcinoma tissue from patients with hepatocellular carcinoma and its clinical implications. J Int Med Res 2013. [PMID: 23206447 DOI: 10.1177/030006051204000504] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
OBJECTIVE To study the clinical significance of intercellular interleukin (IL)-33 in hepatocellular carcinoma (HCC). METHODS Using immunohistochemistry, this prospective study compared IL-33 protein levels in samples of HCC tissue and normal tissue adjacent to the tumour in 60 patients with HCC, and in normal liver tissue from six healthy controls. Interferon (IFN)-α, IFN-γ and IL-33 serum levels were also analysed by enzyme-linked immunosorbent assay in HCC 30 patients and 10 healthy controls. The level of IL-33 immunohistochemical staining was compared with the rate of lymph node metastasis in HCC patients. RESULTS IL-33 was strongly positive in the cytoplasm of hepatocytes. The median percentage of IL-33-positive tissue was higher in HCC than in normal liver tissue samples (adjacent to the tumour or from controls). Serum IFN-α, IFN-γ and IL-33 levels were higher in pre- and postoperative samples from HCC patients than in control samples, and in patients with metastasis compared with those without metastasis. CONCLUSIONS Increased IL-33 protein levels were observed in serum and liver tissue from HCC patients; IL-33 may be a useful biological marker for monitoring HCC growth and metastasis.
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Affiliation(s)
- P Zhang
- Central Laboratory, Norman Bethune First Hospital, Jilin University, Changchun, China
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Chen DS, Feltquate DM, Smothers F, Hoos A, Langermann S, Marshall S, May R, Fleming M, Hodi FS, Senderowicz A, Wiman KG, de Dosso S, Fiedler W, Gianni L, Cresta S, Schulze-Bergkamen HB, Gurrieri L, Salzberg M, Dietrich B, Danielczyk A, Baumeister H, Goletz S, Sessa C, Strumberg D, Schultheis B, Santel A, Gebhardt F, Meyer-Sabellek W, Keil O, Giese K, Kaufmann J, Maio M, Choy G, Covre A, Parisi G, Nicolay H, Fratta E, Fonsatti E, Sigalotti L, Coral S, Taverna P, Azab M, Deutsch E, Lepechoux C, Pignon JP, Tao YT, Rivera S, Bourgier BC, Angokai M, Bahleda R, Slimane K, Angevin E, Besse BB, Soria JC, Dragnev K, Beumer JH, Anyang B, Ma T, Galimberti F, Erkmen CP, Nugent W, Rigas J, Abraham K, Johnstone D, Memoli V, Dmitrovsky E, Voest EE, Siu L, Janku F, Soria JC, Tsimberidou A, Kurzrock R, Tabernero J, Rodon J, Berger R, Onn A, Batist G, Bresson C, Lazar V, Molenaar JJ, Koster J, Ebus M, Zwijnenburg DA, van Sluis P, Lamers F, Schild L, van der Ploeg I, Caron HN, Versteeg R, Pouyssegur J, Marchiq I, Chiche J, Roux D, Le Floch R, Critchlow SE, Wooster RF, Agresta S, Yen KE, Janne PA, Plummer ER, Trinchieri G, Ellis L, Chan SL, Yeo W, Chan AT, Mouliere F, El Messaoudi S, Gongora C, Lamy PJ, del Rio M, Lopez-Crapez E, Gillet B, Mathonnet M, Pezet D, Ychou M, Thierry AR, Ribrag V, Vainchenker W, Constantinescu S, Keilhack H, Umelo IA, Noeparast A, Chen G, Renard M, Geers C, Vansteenkiste J, Teugels E, de Greve J, Rixe O, Qi X, Chu Z, Celerier J, Leconte L, Minet N, Pakradouni J, Kaur B, Cuttitta F, Wagner AJ, Zhang YX, Sicinska E, Czaplinski JT, Remillard SP, Demetri GD, Weng S, Debussche L, Agoni L, Reddy EP, Guha C, Silence K, Thibault A, de Haard H, Dreier T, Ulrichts P, Moshir M, Gabriels S, Luo J, Carter C, Rajan A, Khozin S, Thomas A, Lopez-Chavez A, Brzezniak C, Doyle L, Keen C, Manu M, Raffeld M, Giaccone G, Lutzker S, Melief JM, Eckhardt SG, Trusolino L, Migliardi G, Zanella ER, Cottino F, Galimi F, Sassi F, Marsoni S, Comoglio PM, Bertotti A, Hidalgo M, Weroha SJ, Haluska P, Becker MA, Harrington SC, Goodman KM, Gonzalez SE, al Hilli M, Butler KA, Kalli KR, Oberg AL, Huijbers IJ, Bin Ali R, Pritchard C, Cozijnsen M, Proost N, Song JY, Krimpenfort P, Michalak E, Jonkers J, Berns A, Banerji U, Stewart A, Thavasu P, Banerjee S, Kaye SB. Lectures. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt042] [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: 11/12/2022] Open
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Rixe O, Qi X, Chu Z, Celerier J, Leconte L, Minet N, Pakradouni J, Kaur B, Cuttitta F. Nov C-TER: A Novel VEGF-Independent Anti-Angiogenic Agent with a Promising Preclinical Anti-Tumor Efficacy. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt042.35] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Yang FH, Zhang B, Zhou DJ, Bie L, Tom MW, Drummond DC, Nicolaides T, Mueller S, Banerjee A, Park JW, Prados MD, James DC, Gupta N, Hashizume R, Strohbehn GW, Zhou J, Fu M, Patel TR, Piepmeier JM, Saltzman WM, Xie Q, Johnson J, Bradley R, Ascierto ML, Kang L, Koeman J, Marincola FM, Briggs M, Tanner K, Vande Woude GF, Tanaka S, Klofas LK, Wakimoto H, Borger DR, Iafrate AJ, Batchelor TT, Chi AS, Madhankumar AB, Slagle-Webb B, Rizk E, Harbaugh K, Connor JR, Sarkar G, Curran GL, Jenkins RB, Kurozumi K, Ichikawa T, Onishi M, Fujii K, Ishida J, Shimazu Y, Date I, Ebsworth K, Walters MJ, Ertl LS, Wang Y, Berahovich RD, Zhang P, Powers JP, Liu SC, Al Omran R, Sullivan TJ, Jaen JC, Brown M, Schall TJ, Yusuke N, Shimizu S, Shishido-Hara Y, Shiokawa Y, Nagane M, Wang J, Sai K, Chen FR, Chen ZP, Shi Z, Zhang J, Zhang K, Han L, Chen L, Qian X, Zhang A, Wang G, Jia Z, Pu P, Kang C, Kong LY, Doucette TA, Ferguson SD, Hachem J, Yang Y, Wei J, Priebe W, Fuller GN, Qiao W, Rao G, Heimberger AB, Chen PY, Ozawa T, Drummond D, Santos R, Torre JD, Ng C, Lepe EL, Butowski N, Prados M, Bankiewicz K, James CD, Cheng Z, Gong Y, Ma Y, Muller-Knapp S, Knapp S, Wang J, Fujii K, Kurozumi K, Ichikawa T, Onishi M, Shimazu Y, Ishida J, Antonio Chiocca E, Kaur B, Date I, Yu JS, Judkowski V, Bunying A, Ji J, Li Z, Bender J, Pinilla C, Srinivasan V, Dombovy-Johnson M, Carson-Walter E, Walter K, Xu Z, Popp B, Schlesinger D, Gray L, Sheehan J, Keir ST, Friedman HS, Bigner DD, Kut C, Tyler B, McVeigh E, Li X, Herzka D, Grossman S, Lasky JL, Wang Y, Panosyan E, Meisen WH, Hardcastle J, Wojton J, Wohleb E, Alvarez-Breckenridge C, Nowicki M, Godbout J, Kaur B, Lee SY, Slagle-Webb B, Sheehan JM, Connor JR, Yin S, Kaluz S, Devi SN, de Noronha R, Nicolaou KC, Van Meir EG, Lachowicz JE, Demeule M, Che C, Tripathy S, Jarvis S, Currie JC, Regina A, Nguyen T, Castaigne JP, Zielinska-Chomej K, Mohanty C, Viktorsson K, Lewensohn R, Driscoll JJ, Alsidawi S, Warnick RE, Rixe O, deCarvalho AC, Irtenkauf S, Hasselbach L, Xin H, Mikkelsen T, Sherman JH, Siu A, Volotskova O, Keidar M, Gibo DM, Dickinson P, Robertson J, Rossmeisl J, Debinski W, Nair S, Schmittling R, Boczkowski D, Archer G, Bigner DD, Sampson JH, Mitchell DA, Miller IS, Didier S, Murray DW, Issaivanan M, Coniglio SJ, Segall JE, Al-Abed Y, Symons M, Fotovati A, Hu K, Wakimoto H, Triscott J, Bacha J, Brown DM, Dunn SE, Daniels DJ, Peterson TE, Dietz AB, Knutson GJ, Parney IF, Diaz RJ, Golbourn B, Picard D, Smith C, Huang A, Rutka J, Saito N, Fu J, Yao J, Wang S, Koul D, Yung WKA, Fu J, Koul D, Yao J, Wang S, Yuan Y, Sulman EP, Colman H, Lang FF, Yung WKA, Slat EA, Herzog ED, Rubin JB, Brown M, Carminucci AS, Amendolara B, Leung R, Lei L, Canoll P, Bruce JN, Wojton JA, Chu Z, Kwon CH, Chow LM, Palascak M, Franco R, Bourdeau T, Thornton S, Qi X, Kaur B, Kitange GJ, Mladek AC, Su D, Carlson BL, Schroeder MA, Pokorny JL, Bakken KK, Gupta SK, Decker PA, Wu W, Sarkaria JN, Colman H, Oddou MP, Mollard A, Call LT, Vakayalapati H, Warner SL, Sharma S, Bearss DJ, Chen TC, Cho H, Wang W, Hofman FM, Flores CT, Snyder D, Sanchez-Perez L, Pham C, Friedman H, Bigner DD, Sampson JH, Mitchell DA, Woolf E, Abdelwahab MG, Turner G, Preul MC, Lynch A, Rho JM, Scheck AC, Salphati L, Heffron TP, Alicke B, Barck K, Carano RA, Cheong J, Greve J, Lee LB, Nishimura M, Pang J, Plise EG, Reslan HB, Zhang X, GOuld SG, Olivero AG, Phillips HS, Zadeh G, Jalali S, Voce D, Wei Z, Shijun K, Nikolai K, Josh W, Clayton C, Bakhtiar Y, Alkins R, Burgess A, Ganguly M, Wels W, Hynynen K, Li YM, Jun H, Daniel V, Walter HA, Nakashima H, Nguyen TT, Shalkh I, Goins WF, Chiocca EA, Pyko IV, Nakada M, Furuyama N, Lei T, Hayashi Y, Kawakami K, Minamoto T, Fedulau AS, Hamada JI. LAB-EXPERIMENTAL (PRE-CLINICAL) THERAPEUTICS AND PHARMACOLOGY. Neuro Oncol 2012; 14:vi25-vi37. [PMCID: PMC3488776 DOI: 10.1093/neuonc/nos222] [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: 10/22/2023] Open
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Hu Y, Bai Y, Chu Z, Wang J, Wang L, Yu M, Lian Z, Hua J. GSK3 inhibitor-BIO regulates proliferation of female germline stem cells from the postnatal mouse ovary. Cell Prolif 2012; 45:287-98. [PMID: 22571232 PMCID: PMC6496214 DOI: 10.1111/j.1365-2184.2012.00821.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Accepted: 03/08/2012] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVE It is widely believed that in most female mammalian neonates, all germ cells enter meiosis to form the primary oocyte at the end of foetal development, and as a result, the postnatal mammalian ovary harbours only a limited supply of oocytes that cannot be regenerated. However, this idea has been challenged by the discovery of the existence of female germline stem cells (FGSCs) in postnatal mammalian ovaries. MATERIALS AND METHODS We have isolated ovarian GSCs from neonatal and adult mouse ovaries and expanded them in the same culture conditions as embryonic stem cells (ESCs). RESULTS LIF and BIO were beneficial for formation of FGSC colonies. BIO promoted proliferation of FGSCs through activation of β-catenin and up-regulation of E-cadherin. The FGSCs formed compact round colonies with unclear borders, maintained ESC characteristics and alkaline phosphatase (AP) activity, expressing germ-cell markers-Vasa, and stem-cell markers: Oct4, Klf4, C-myc, Nanog, CD49f, Sox2, CD133, SSEA1 and SSEA4. These cells had the ability to form embryoid bodies (EBs), which expressed specific markers for all three germ layers. Then we induced EBs to differentiate into neurons, cardiomyocytes, pancreatic cells and germ cells, which showed the expression of specific markers, β-III-tubulin, cardiac a-actin, Pdx1 and Zps respectively. DISCUSSION AND CONCLUSION This study reveals the existence of FGSCs in postnatal mouse ovary with multipotent characteristics. BIO played an important role in regulation of proliferation and maintenance of the FGSCs. This could help provide a better understanding of causes of ovarian infertility, prevention and potential treatment of infertility.
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Affiliation(s)
- Y. Hu
- College of Veterinary MedicineNorthwest A&F UniversityYanglingShaanxiChina
- Shaanxi Centre of Stem Cells Engineering & TechnologyNorthwest A&F UniversityYanglingShaanxiChina
- Key Lab for Animal Biotechnology of Ministry of Agriculture of ChinaNorthwest A&F UniversityYanglingShaanxiChina
| | - Y. Bai
- College of Veterinary MedicineNorthwest A&F UniversityYanglingShaanxiChina
- Shaanxi Centre of Stem Cells Engineering & TechnologyNorthwest A&F UniversityYanglingShaanxiChina
- Key Lab for Animal Biotechnology of Ministry of Agriculture of ChinaNorthwest A&F UniversityYanglingShaanxiChina
| | - Z. Chu
- College of Veterinary MedicineNorthwest A&F UniversityYanglingShaanxiChina
- Shaanxi Centre of Stem Cells Engineering & TechnologyNorthwest A&F UniversityYanglingShaanxiChina
- Key Lab for Animal Biotechnology of Ministry of Agriculture of ChinaNorthwest A&F UniversityYanglingShaanxiChina
| | - J. Wang
- College of Veterinary MedicineNorthwest A&F UniversityYanglingShaanxiChina
- Shaanxi Centre of Stem Cells Engineering & TechnologyNorthwest A&F UniversityYanglingShaanxiChina
- Key Lab for Animal Biotechnology of Ministry of Agriculture of ChinaNorthwest A&F UniversityYanglingShaanxiChina
| | - L. Wang
- College of Veterinary MedicineNorthwest A&F UniversityYanglingShaanxiChina
- Shaanxi Centre of Stem Cells Engineering & TechnologyNorthwest A&F UniversityYanglingShaanxiChina
- Key Lab for Animal Biotechnology of Ministry of Agriculture of ChinaNorthwest A&F UniversityYanglingShaanxiChina
| | - M. Yu
- College of Veterinary MedicineNorthwest A&F UniversityYanglingShaanxiChina
- Shaanxi Centre of Stem Cells Engineering & TechnologyNorthwest A&F UniversityYanglingShaanxiChina
- Key Lab for Animal Biotechnology of Ministry of Agriculture of ChinaNorthwest A&F UniversityYanglingShaanxiChina
| | - Z. Lian
- College of Veterinary MedicineNorthwest A&F UniversityYanglingShaanxiChina
- Shaanxi Centre of Stem Cells Engineering & TechnologyNorthwest A&F UniversityYanglingShaanxiChina
- Key Lab for Animal Biotechnology of Ministry of Agriculture of ChinaNorthwest A&F UniversityYanglingShaanxiChina
| | - J. Hua
- College of Veterinary MedicineNorthwest A&F UniversityYanglingShaanxiChina
- Shaanxi Centre of Stem Cells Engineering & TechnologyNorthwest A&F UniversityYanglingShaanxiChina
- Key Lab for Animal Biotechnology of Ministry of Agriculture of ChinaNorthwest A&F UniversityYanglingShaanxiChina
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Zhang J, Xiao Z, Lai D, Sun J, He C, Chu Z, Ye H, Chen S, Wang J. miR-21, miR-17 and miR-19a induced by phosphatase of regenerating liver-3 promote the proliferation and metastasis of colon cancer. Br J Cancer 2012; 107:352-9. [PMID: 22677902 PMCID: PMC3394980 DOI: 10.1038/bjc.2012.251] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.8] [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] [Indexed: 12/12/2022] Open
Abstract
Background: Phosphatase of regenerating liver-3 (PRL-3) is an oncogene known to promote tumour metastasis, especially in colorectal cancer (CRC). Here, we demonstrate that the miR-21, miR-17 and miR-19a expressions induced by PRL-3 are involved in the proliferation and metastasis of colon cancer. Methods: Microarray analysis and quantitative reverse-transcription polymerase chain reactions (qRT–PCR) were used to investigate the changes in miRNA expression due to the overexpression of PRL-3. Transwell chamber invasion assays, CCK-8 proliferation assays and RNA interference assays were used to explore the effects of PRL-3 on miR-21, miR-17 and miR-19a expression in colon cancer cells. Immunohistochemistry and qRT–PCR were performed in colon cancer tissues to evaluate the expression of PRL-3, signal transducer and activator of transcription 3 (STAT3), miR-21, miR-17 and miR-19a. Results: Our study demonstrated that the overexpression of PRL-3 in colon cancer cells induced the expression of miR-21, miR-17 and miR-19a by activating STAT3. Subsequently, these microRNAs contributed to the increased proliferation and invasiveness of the colon cancer cells. Positive correlations between PRL-3 and these microRNAs were also observed in matched primary colon cancer tissues and metastatic lesions. Conclusion: miR-21, miR-17 and miR-19a induced by PRL-3 contribute to the proliferation and invasion of colon cancer.
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Affiliation(s)
- J Zhang
- Department of Hepatobiliary Surgery, Sun-Yat-Sen Memorial Hospital, Sun-Yat-Sen University, 107 Yanjiang West Road, Guangzhou 510120, China
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Abstract
That oestradiol can have both negative- and positive-feedback actions upon the release of gonadotrophin-releasing hormone (GnRH) has been understood for decades. The vast majority of studies have investigated the effects of in vivo oestrogen administration. In the past decade, evidence has accumulated in many neuronal and non-neuronal systems indicating that, in addition to traditional genomic action via transcription factor receptors, steroids can also initiate effects rapidly via signalling cascades typically associated with the cell membrane. Here, we review work examining the rapid actions of oestradiol on GnRH neurones, addressing the questions of dose dependence, receptor subtypes, signalling cascades and intrinsic and synaptic properties that are rapidly modulated by this steroid.
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Affiliation(s)
- S M Moenter
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI, USA.
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Pavel H, Ajeawung N, Faure R, Poirier D, Kamnasaran D, Ajeawung N, Joshi H, Kamnasaran D, Poirier D, Ajeawung N, Kamnasaran D, Lun X, Zemp F, Sun B, Stechishin O, Luchman A, Kelly JJ, Weiss S, Hamilton MG, Cairncross G, Senger DL, Bell J, McFadden G, Forsyth PA, Tzeng SY, Guerrero-Cazares H, Martinez EE, Young NP, Sunshine JC, Quinones-Hinojosa A, Green JJ, Lei L, D'Amico R, Sisti J, Leung R, Sonabend AM, Guarnieri P, Rosenfeld SS, Bruce JN, Canoll P, Baichwal VR, Reeves L, Chad BL, Zavitz KH, Beelen AP, Mather GG, Carlson RO, Manton C, Chandra J, Keir ST, Reardon DA, Saling JR, Gray LS, Bigner DD, Friedman HS, Zhang J, Brun J, Ogbomo H, Zemp F, Wang Z, Stojdl DJ, Lun X, Forsyth PA, Kong LY, Hatiboglu MA, Wei J, Wang Y, McEnery KA, Fuller GN, Qiao W, Davies MA, Priebe W, Heimberger AB, Amendolara B, Gil O, Lei L, Ivkovic S, Bruce J, Canoll P, Rosenfeld S, Finniss S, Perlstein B, Miller C, Okhrimenko H, Kazimirsky G, Cazacu S, Lemke N, Brodie S, Rempel SA, Rosenblum M, Mikkelsen T, Margel S, Brodie C, Guvenc H, Demir H, Gupta S, Mazumder S, Ray-Chaundhury A, Li T, Li C, Nakano I, Rahman R, Rahman C, Smith S, Macarthur D, Rose F, Shakesheff K, Grundy RG, Brenner AJ, Goins B, Bao A, Miller J, Trevino A, Zuniga R, Phillips WT, Gilg AG, Bowers KG, Toole BP, Maria BL, Leung GK, Sun S, Wong ST, Zhang XQ, Pu JK, Lui WM, Marino AM, Hussaini IM, Amos S, Simpson K, Redpath GT, Lyons C, Dipierro C, Grant GA, Wilson C, Salami S, Macaroni P, Li S, Park JY, Needham D, Bigner D, Dewhirst M, Ohlfest J, Gallardo J, Argawal S, Mittapalli R, Donelson R, Elmquist WF, Nicolaides T, Hariono S, Barkovich K, Hashizume R, Rowitch D, Weiss W, Sheer D, Baker S, Paugh B, Waldman T, Li H, Jones C, Forshew T, James D, Caroline H, Patrick R, Katrin L, Karl F, Ghazaleh T, Michael W, Albrecht V, Thorsteinsdottir J, Wagner E, Tonn JC, Ogris M, Schichor C, Charest G, Paquette B, Sanche L, Mathieu D, Fortin D, Qi X, Cuttitta F, Chu Z, Celerier J, Pakradouni J, Rixe O, Hashizume R, Gragg A, Muller S, Banerjee A, Phillips J, Prados M, Haas-Kogan D, Gupta N, James D, Florence L, Gwendoline VG, Veronique M, Robert K, Agarwal S, Mittapalli RK, Cen L, Carlson BL, Elmquist WF, Sarkaria JN, Sengupta S, Weeraratne SD, Rallapalli S, Amani V, Pierre-Francois J, Teider N, Rotenberg A, Cook J, Pomeroy SL, Jenses F, Cho YJ, Hjouj M, Last D, Guez D, Daniels D, Lavee J, Rubinsky B, Mardor Y, Serwer LP, Noble CO, Michaud K, Drummond DC, Ozawa T, Zhou Y, Marks JD, Bankiewicz K, Park JW, James D, Wang W, Cho H, Weintraub M, Jhaveri N, Torres S, Petasis N, Schonthal AH, Louie SG, Hofman FM, Chen TC, Grada Z, Hegde M, Schaffer DR, Ghazi A, Byrd T, Dotti G, Wels W, Heslop HE, Gottschalk S, Baker M, Ahmed N, Hamblett KJ, Kozlosky CJ, Liu H, Siu S, Arora T, Retter MW, Matsuda K, Hill JS, Fanslow WC, Diaz RJ, Etame A, Meaghan O, Mainprize T, Smith C, Hynynen K, Rutka J, Pradarelli J, Yoo JY, Kaka A, Alvarez-Breckenridge C, Pan Q, Chiocca EA, Teknos T, Kaur B, Lee SY, Slagle-Webb B, Sheehan JM, Connor JR, Cote J, Lepage M, Gobeil F, Fortin D, Kleijn A, Balvers R, Kloezeman J, Dirven C, Lamfers M, Leenstra S, See W, Tan IL, Nicolaides T, Pieper R, Jiang H, White E, Rios-Vicil CI, Yung WKA, Gomez-Manzano C, Fueyo J, Zemp FJ, McKenzie BA, Lun X, McFadden G, Forsyth PA, Mueller S, Yang X, Hashizume R, Gragg A, Smirnov I, Prados M, James DC, Phillips JJ, Berger MS, Rowitch DH, Gupta N, Haas-Kogan DH, D'Amico R, Lei L, Kennedy B, Rosenfeld SS, Canoll P, Bruce JN, Gopalakrishnan V, Das C, Taylor P, Kommagani R, Su X, Aguilera D, Thomas A, Wolff J, Flores E, Kadakia M, Alkins R, Broderson P, Sodhi R, Hynynen K, Chung SA, McDonald KL, Shen H, Day BW, Stringer BW, Johns T, Decollogne S, Teo C, Hogg PJ, Dilda PJ, Patel TR, Zhou J, Piepmeier JM, Saltzman WM, Vogelbaum MA, Agarwal S, Manchanda P, Ohlfest JR, Elmquist WF, Kitange GJ, Mladek AC, Carlson BL, Schroeder MA, Pokorny JL, Sarkaria JN, Ogbomo H, Lun X, Zhang J, McFadden G, Mody C, Forsyth P, Dasgupta T, Yang X, Hashizume R, Gragg A, Prados M, Nicolaides T, James CD, Haas-Kogan D, Madhankumar AB, Webb BS, Park A, Harbaugh K, Sheehan J, Connor JR. PRECLINICAL EXPERIMENTAL THERAPEUTICS AND PHARMACOLOGY. Neuro Oncol 2011. [DOI: 10.1093/neuonc/nor158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Fishman RA, Happ E, Stevens T, Kunschner L, Jaworski DM, Stradecki HM, Penar PL, Pendlebury WW, Pennington CJ, Edwards DR, Broaddus WC, Fillmore HL, Mukherjee J, Hawkins C, Guha A, Pioli PD, Milani S, Linskey ME, Zhou YH, Marchetti V, Barnett F, Wang M, Scheppke L, Sanchez-Cespedes J, De Rossi C, Nemerow G, Torbett B, Friedlander M, Goldlust SA, Singer S, DeAngelis LM, Lassman AB, Nolan CP, Yang SH, Lee SW, Chen ZP, Liu XM, Wojton JA, Chu Z, Qi X, Kaur B, Zhou YH, Hu Y, Pioli PD, Siegel E, Ro DI, Marlon S, Hsu N, Milani SN, Mohan S, Yu L, Hess KR, Linskey ME, Liu Y, Carson-Walter E, Walter K, Raghu H, Gondi CS, Gujrati M, Dinh DH, Rao JS, Narayana A, Kunnakkat SD, Medabalmi P, Golfinos J, Parker E, Knopp E, Zagzag D, Gruber D, Gruber ML, Burrell K, Jelveh S, Lindsey P, Hill R, Zadeh G, Ivkovic S, Beadle C, Massey SC, Swanson KR, Canoll P, Rosenfeld SS, McAllister S, Soroceanu L, Pakdel A, Limbad C, Adrados I, Desprez PY, Nakada M, Nambu E, Furuyama N, Yoshida Y, Kita D, Hayashi Y, Hayashi Y, Hamada JI, Seyed Sadr M, Maret D, Seyed Sadr E, Siu V, Alshami J, Denault JS, Faury D, Jabado N, Nantel A, Del Maestro R, Kunnakkat SD, Perretta D, Medabalmi P, Gruber ML, Gruber D, Golfinos J, Parker E, Narayana A, Pioli PD, Linskey ME, Zhou YH, Nagaiah G, Almubarak M, Torres-Trejo A, Newton, M, Willey P, Altaha R, Murphy SF, Banasiak M, Yee GT, Wotoczek-Obadia M, Tran Y, Prak A, Albright R, Mullan M, Paris D, Brem S, Yang YP, Ennis M, Tran N, Symons M, Najbauer J, Huszthy PC, Garcia E, Metz MZ, Gutova M, Frank RT, Miletic H, Glackin CA, Barish ME, Bjerkvig R, Aboody KS, Clump DA, Engh JA, Mintz AH, Cunnick J, Flynn DC, Clark AJ, Butowski NA, Chang SM, Prados MD, Clarke J, Polley MYC, Sughrue ME, McDermott MW, Parsa AT, Berger MS, Aghi MK, Megyesi JF, Costello P, Macdonald W, Dyer E, Macdonald D, Hammond R, Kalache Y, Easaw J, McIntyre J, Williams SC, Karajannis MA, Chiriboga L, von Deimling A, Zagzag D, Ajlan A, Husaine S, Petrecca K, Magnus N, Garnier D, Meehan B, Rak J. Angiogenesis and Invasion. Neuro Oncol 2010. [DOI: 10.1093/neuonc/noq116.s1] [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: 11/12/2022] Open
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Newsome MR, Scheibel RS, Hanten G, Chu Z, Steinberg JL, Hunter JV, Lu H, Vasquez AC, Li X, Lin X, Cook L, Levin HS. Brain activation while thinking about the self from another person's perspective after traumatic brain injury in adolescents. Neuropsychology 2010; 24:139-47. [PMID: 20230107 DOI: 10.1037/a0017432] [Citation(s) in RCA: 31] [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: 11/08/2022] Open
Abstract
Deficits in self awareness and taking the perspective of others are often observed following traumatic brain injury (TBI). Nine adolescents (ages 12-19 years) who had sustained moderate to severe TBI after an average interval of 2.6 years and nine typically developing (TD) adolescents underwent functional MRI (fMRI) while performing a perspective taking task (D'Argembeau et al., 2007). Participants made trait attributions either from their own perspective or from that of the significant other. The groups did not differ in reaction time or on a consistency criterion. When thinking of the self from a third-person perspective, adolescents with TBI demonstrated greater activation in posterior brain regions implicated in social cognition, the left lingual gyrus (BA 18) and posterior cingulate (BA 31), extending into neighboring regions not generally associated with social cognition, that is, cuneus (BA 31) and parahippocampal gyrus, relative to TD adolescents. We postulate that adolescents with moderate to severe TBI recruited alternative neural pathways during perspective-taking because traumatic axonal injury disrupted their fronto-parietal networks mediating social cognition.
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Affiliation(s)
- Mary R Newsome
- Newsome, Baylor College of Medicine, Cognitive Neuroscience Laboratory, 1709 Dryden Road, Suite 725, Houston, TX 77030, USA.
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Chu Z, Wilde EA, Hunter JV, McCauley SR, Bigler ED, Troyanskaya M, Yallampalli R, Chia JM, Levin HS. Voxel-based analysis of diffusion tensor imaging in mild traumatic brain injury in adolescents. AJNR Am J Neuroradiol 2010; 31:340-6. [PMID: 19959772 DOI: 10.3174/ajnr.a1806] [Citation(s) in RCA: 143] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE DTI of normal-appearing WM as evaluated by conventional MR imaging in mTBI has the potential to identify important regional abnormalities that relate to PCS. VBA was used to examine WM changes in acute mTBI. MATERIALS AND METHODS WM was assessed between 1 and 6 days postinjury with voxel-based DTI analyses in 10 adolescent patients with mTBI and 10 age-matched control participants. In addition to the voxel-based group, analysis used to identify brain pathology across all patients with mTBI, 2 voxel-based linear regressions were performed. These analyses investigated the relation between 1) the ADC and PCS severity scores, and 2) ADC and scores on the BSI of emotional symptoms associated with mTBI. We hypothesized that frontotemporal WM changes would relate to symptoms associated with PCS and endorsed on the BSI. RESULTS Patients with mTBI demonstrated significant reductions in ADC in several WM regions and in the left thalamus. As expected, no increases in ADC were found in any region of interest. All injury-affected regions showed decreased radial diffusivity, unchanged AD, and increased FA, which is consistent with axonal cytotoxic edema, reflective of acute injury. CONCLUSIONS Whole-brain WM DTI measures can detect abnormalities in acute mTBI associated with PCS symptoms in adolescents.
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Affiliation(s)
- Z Chu
- E B Singleton Department of Diagnostic Imaging, Texas Children's Hospital, Houston, TX 77030, USA.
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Brady PA, Erne P, Val-Mejias J, Schwab J, Schimpf R, Orlov M, Mattioni T, Amlie J, Itou H, Igarashi M, Iga A, Tubota T, Yamazaki J, Yoshihara K, Santos De Sousa CI, Carpinteiro L, Marques P, Almeida MR, Miltemberger G, Correia MJ, Sousa J, Lopes M, Teixeira R, Ferreira MJ, Donato P, Ventura M, Cristovao J, Elvas L, Providencia LA, Chang D, Zhang S, Gao L, Yang D, Lin Y, Chu Z, Yang Y, Pecini R, Pehrson S, Chen X, Thoegersen AM, Kjaer A, Hastrup-Svendsen J, Sanchez-Munoz JJ, Garcia-Alberola A, Martinez-Sanchez J, Penafiel-Verdu P, Giner-Caro JA, Pastor-Perez FJ, Valdes-Chavarri M, Sorrentino S, Forleo C, Iacoviello M, Guida P, D'andria V, Favale S, Pasceri E, Curcio A, Achille F, De Serio D, Zinzi S, Torella D, Mastroroberto P, Indolfi C, Ozcan Celebi O, Canbay A, Aydogdu S, Diker E, De Sisti A, Tonet J, Benkaci A, Frank R, Sanchez-Munoz JJ, Garcia-Alberola A, Martinez-Sanchez J, Penafiel Verdu P, Giner Caro JA, Pastor-Perez FJ, Valdes-Chavarri M, Maroz-Vadalazhskaya N, Denissevich T, Ostrovskiy I, Sharashidze N, Pagava Z, Saatashvili G, Agladze R, Noda M, Yoshikawa S, Fujinami T, Yamamoto Y, Tashiro H, Usui M, Ichikawa K, Isobe M, Meyer C, Saygili E, Rana O, Floege J, Hennersdorf M, Rassaf T, Kelm M, Schauerte P, Sredniawa B, Cebula S, Kowalczyk J, Musialik-Lydka A, Wozniak A, Zakliczynski M, Zembala M, Kalarus Z, Gumenyuk OI, Chernenkov YV, Kosenkova IV, Bolotova NV, Averyanov AP. Poster Session 4: Miscellaneous. Europace 2009. [DOI: 10.1093/europace/euq239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Abstract
The feedback actions of ovarian oestradiol during the female reproductive cycle are among the most unique in physiology. During most of the cycle, oestradiol exerts homeostatic, negative feedback upon the release of gonadotrophin-releasing hormone (GnRH). Upon exposure to sustained elevated oestradiol levels, however, there is a switch in the feedback effects of this hormone to positive, resulting in induction of a surge in the release of GnRH that serves as a neuroendocrine signal to initiate the ovulatory cascade. We review recent developments stemming from studies in an animal model exhibiting daily switches between positive and negative feedback that have probed the neurobiological mechanisms, including changes in neural networks and intrinsic properties of GnRH neurones, underlying this switch in oestradiol action.
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Affiliation(s)
- S M Moenter
- Department of Medicine, University of Virginia, Charlottesville, VA 22908, USA.
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Liu Z, Teng Y, Xie X, Li H, Lv J, Gao L, Tian F, Jiang Y, Chu Z, Xie C, Liu H. Development and evaluation of a one-step loop-mediated isothermal amplification for detection of spring viraemia of carp virus. J Appl Microbiol 2008; 105:1220-6. [DOI: 10.1111/j.1365-2672.2008.03858.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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