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Zacchigna S, Martinelli V, Moimas S, Colliva A, Anzini M, Nordio A, Costa A, Rehman M, Vodret S, Pierro C, Colussi G, Zentilin L, Gutierrez MI, Dirkx E, Long C, Sinagra G, Klatzmann D, Giacca M. Paracrine effect of regulatory T cells promotes cardiomyocyte proliferation during pregnancy and after myocardial infarction. Nat Commun 2018; 9:2432. [PMID: 29946151 PMCID: PMC6018668 DOI: 10.1038/s41467-018-04908-z] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 05/16/2018] [Indexed: 02/07/2023] Open
Abstract
Cardiomyocyte proliferation stops at birth when the heart is no longer exposed to maternal blood and, likewise, to regulatory T cells (Tregs) that are expanded to promote maternal tolerance towards the fetus. Here, we report a role of Tregs in promoting cardiomyocyte proliferation. Treg-conditioned medium promotes cardiomyocyte proliferation, similar to the serum from pregnant animals. Proliferative cardiomyocytes are detected in the heart of pregnant mothers, and Treg depletion during pregnancy decreases both maternal and fetal cardiomyocyte proliferation. Treg depletion after myocardial infarction results in depressed cardiac function, massive inflammation, and scarce collagen deposition. In contrast, Treg injection reduces infarct size, preserves contractility, and increases the number of proliferating cardiomyocytes. The overexpression of six factors secreted by Tregs (Cst7, Tnfsf11, Il33, Fgl2, Matn2, and Igf2) reproduces the therapeutic effect. In conclusion, Tregs promote fetal and maternal cardiomyocyte proliferation in a paracrine manner and improve the outcome of myocardial infarction. Regulatory T cells (Tregs) expand during pregnancy to promote tolerance towards the fetus. Here the authors show that Tregs induce proliferation of fetal and maternal cardiomyocytes during pregnancy and enhance myocardial repair via proliferation-promoting paracrine actions.
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Affiliation(s)
- Serena Zacchigna
- Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149, Trieste, Italy. .,Department of Medical, Surgical and Health Sciences, University of Trieste, 34127 Trieste, Italy and Center for Translational Cardiology, Azienda Sanitaria Universitaria Integrata di Trieste, 34129, Trieste, Italy.
| | - Valentina Martinelli
- Molecular Medicine Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149, Trieste, Italy
| | - Silvia Moimas
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34127 Trieste, Italy and Center for Translational Cardiology, Azienda Sanitaria Universitaria Integrata di Trieste, 34129, Trieste, Italy.,Molecular Medicine Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149, Trieste, Italy
| | - Andrea Colliva
- Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149, Trieste, Italy
| | - Marco Anzini
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34127 Trieste, Italy and Center for Translational Cardiology, Azienda Sanitaria Universitaria Integrata di Trieste, 34129, Trieste, Italy
| | - Andrea Nordio
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34127 Trieste, Italy and Center for Translational Cardiology, Azienda Sanitaria Universitaria Integrata di Trieste, 34129, Trieste, Italy
| | - Alessia Costa
- Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149, Trieste, Italy
| | - Michael Rehman
- Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149, Trieste, Italy
| | - Simone Vodret
- Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149, Trieste, Italy
| | - Cristina Pierro
- Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149, Trieste, Italy
| | - Giulia Colussi
- Molecular Medicine Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149, Trieste, Italy
| | - Lorena Zentilin
- Molecular Medicine Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149, Trieste, Italy
| | - Maria Ines Gutierrez
- Molecular Medicine Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149, Trieste, Italy
| | - Ellen Dirkx
- Molecular Medicine Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149, Trieste, Italy
| | - Carlin Long
- Molecular Medicine Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149, Trieste, Italy
| | - Gianfranco Sinagra
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34127 Trieste, Italy and Center for Translational Cardiology, Azienda Sanitaria Universitaria Integrata di Trieste, 34129, Trieste, Italy
| | - David Klatzmann
- Sorbonne Université, UPMC Univ Paris 06, INSERM, UMR_S 959, Immunology-Immunopathology-Immunotherapy (i3), F-75005, Paris, France.,AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Department of Biotherapies, Clinical Investigation Center in Biotherapy and Inflammation-Immunopathology-Biotherapy Department (DHU i2B), F-75013, Paris, France
| | - Mauro Giacca
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34127 Trieste, Italy and Center for Translational Cardiology, Azienda Sanitaria Universitaria Integrata di Trieste, 34129, Trieste, Italy.,Molecular Medicine Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149, Trieste, Italy
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Merlo M, Anzini M, Bussani R, Artico J, Barbati G, Stolfo D, Gigli M, Muça M, Naso P, Ramani F, Di Lenarda A, Pinamonti B, Sinagra G. Characterization and Long-Term Prognosis of Postmyocarditic Dilated Cardiomyopathy Compared With Idiopathic Dilated Cardiomyopathy. Am J Cardiol 2016; 118:895-900. [PMID: 27453513 DOI: 10.1016/j.amjcard.2016.05.063] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 05/31/2016] [Accepted: 05/31/2016] [Indexed: 10/21/2022]
Abstract
Dilated cardiomyopathy (DC) is the final common pathway of different pathogenetic processes and presents a significant prognostic heterogeneity, possibly related to its etiologic variety. The characterization and long-term prognosis of postmyocarditic dilated cardiomyopathy (PM-DC) remain unknown. This study assesses the clinical-instrumental evolution and long-term prognosis of a large cohort of patients with PM-DC. We analyzed 175 patients affected with DC consecutively enrolled from 1993 to 2008 with endomyocardial biopsy (EMB) data available. PM-DC was defined in the presence of borderline myocarditis at EMB or persistent left ventricular dysfunction 1 year after diagnosis of active myocarditis at EMB. Other patients were defined as affected by idiopathic dilated cardiomyopathy (IDC). Analysis of follow-up evaluations was performed at 24, 60, and 120 months. We found 72 PM-DC of 175 enrolled patients (41%). Compared with IDC, patients with PM-DC were more frequently females and less frequently presented a familial history of DC. No other baseline significant differences were found. During the long-term follow-up (median 154, first to third interquartile range 78 to 220 months), patients with PM-DC showed a trend toward slower disease progression. Globally, 18 patients with PM-DC (25%) versus 49 with IDC (48%) experienced death/heart transplantation (p = 0.045). The prognostic advantage for patients with PM-DC became significant beyond 40 months of follow-up. At multivariable time-dependent Cox analysis, PM-DC was confirmed to have a global independent protective role (hazard ratio 0.53, 95% confidence interval 0.28 to 0.97, p = 0.04). In conclusion, PM-DC is characterized by better long-term prognosis compared with IDC. An exhaustive etiologic characterization appears relevant in the prognostic assessment of DC.
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Merlo M, Gobbo M, Stolfo D, Losurdo P, Ramani F, Barbati G, Pivetta A, Di Lenarda A, Anzini M, Gigli M, Pinamonti B, Sinagra G. The Prognostic Impact of the Evolution of RV Function in Idiopathic DCM. JACC Cardiovasc Imaging 2016; 9:1034-1042. [DOI: 10.1016/j.jcmg.2016.01.027] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 12/14/2015] [Accepted: 01/07/2016] [Indexed: 11/16/2022]
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Sinagra G, Anzini M, Pereira NL, Bussani R, Finocchiaro G, Bartunek J, Merlo M. Myocarditis in Clinical Practice. Mayo Clin Proc 2016; 91:1256-66. [PMID: 27489051 DOI: 10.1016/j.mayocp.2016.05.013] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Revised: 05/24/2016] [Accepted: 05/25/2016] [Indexed: 12/21/2022]
Abstract
Myocarditis is a polymorphic disease characterized by great variability in clinical presentation and evolution. Patients presenting with severe left ventricular dysfunction and life-threatening arrhythmias represent a demanding challenge for the clinician. Modern techniques of cardiovascular imaging and the exhaustive molecular evaluation of the myocardium with endomyocardial biopsy have provided valuable insight into the pathophysiology of this disease, and several clinical registries have unraveled the disease's long-term evolution and prognosis. However, uncertainties persist in crucial practical issues in the management of patients. This article critically reviews current information for evidence-based management, offering a rational and practical approach to patients with myocarditis. For this review, we searched the PubMed and MEDLINE databases for articles published from January 1, 1980, through December 31, 2015, using the following terms: myocarditis, inflammatory cardiomyopathy, and endomyocardial biopsy. Articles were selected for inclusion if they represented primary data or were review articles published in high-impact journals. In particular, a risk-oriented approach is proposed. The different patterns of presentation of myocarditis are classified as low-, intermediate-, and high-risk syndromes according to the most recent evidence on prognosis, clinical findings, and both invasive and noninvasive testing, and appropriate management strategies are proposed for each risk class.
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Affiliation(s)
- Gianfranco Sinagra
- Cardiovascular Department, Ospedali Riuniti and University of Trieste, Trieste, Italy.
| | - Marco Anzini
- Cardiovascular Department, Ospedali Riuniti and University of Trieste, Trieste, Italy
| | | | - Rossana Bussani
- Institute of Pathological Anatomy and Histology, Ospedali Riuniti and University of Trieste, Trieste, Italy
| | - Gherardo Finocchiaro
- Cardiovascular Sciences Research Centre, St George's University of London, London, UK
| | | | - Marco Merlo
- Cardiovascular Department, Ospedali Riuniti and University of Trieste, Trieste, Italy
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Merlo M, Stolfo D, Anzini M, Negri F, Pinamonti B, Barbati G, Ramani F, Lenarda AD, Sinagra G. Persistent recovery of normal left ventricular function and dimension in idiopathic dilated cardiomyopathy during long‐term follow‐up: does real healing exist? J Am Heart Assoc 2015; 4:e001504. [PMID: 25587018 PMCID: PMC4330044 DOI: 10.1161/jaha.114.000570] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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6
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Merlo M, Stolfo D, Anzini M, Negri F, Pinamonti B, Barbati G, Ramani F, Di Lenarda A, Sinagra G. Persistent recovery of normal left ventricular function and dimension in idiopathic dilated cardiomyopathy during long‐term follow‐up: does real healing exist? J Am Heart Assoc 2015. [PMID: 25587018 PMCID: PMC4330074 DOI: 10.1161/jaha.114.001504] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background An important number of patients with idiopathic dilated cardiomyopathy have dramatically improved left ventricular function with optimal treatment; however, little is known about the evolution and long‐term outcome of this subgroup, which shows apparent healing. This study assesses whether real healing actually exists in dilated cardiomyopathy . Methods and Results Persistent apparent healing was evaluated among 408 patients with dilated cardiomyopathy receiving tailored medical treatment and followed over the very long‐term. Persistent apparent healing was defined as left ventricular ejection fraction ≥50% and indexed left ventricular end‐diastolic diameter ≤33 mm/m2 at both mid‐term (19±4 months) and long‐term (103±9 months) follow‐up. At mid‐term, 63 of 408 patients (15%) were apparently healed; 38 (60%; 9% of the whole population) showed persistent apparent healing at long‐term evaluation. No predictors of persistent apparent healing were found. Patients with persistent apparent healing showed better heart transplant–free survival at very long‐term follow‐up (95% versus 71%; P=0.014) compared with nonpersistently normalized patients. Nevertheless, in the very long term, 37% of this subgroup experienced deterioration of left ventricular systolic function, and 5% died or had heart transplantation. Conclusions Persistent long‐term apparent healing was evident in a remarkable proportion of dilated cardiomyopathy patients receiving optimal medical treatment and was associated with stable normalization of main clinical and laboratory features. This condition can be characterized by a decline of left ventricular function over the very long term, highlighting the relevance of serial and individualized follow‐up in all patients with dilated cardiomyopathy, especially considering the absence of predictors for long‐term apparent healing.
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Affiliation(s)
- Marco Merlo
- Cardiovascular Department, “Ospedali Riuniti” and University of Trieste, Italy (M.M., D.S., M.A., F.N., B.P., G.B., F.R., G.S.)
| | - Davide Stolfo
- Cardiovascular Department, “Ospedali Riuniti” and University of Trieste, Italy (M.M., D.S., M.A., F.N., B.P., G.B., F.R., G.S.)
| | - Marco Anzini
- Cardiovascular Department, “Ospedali Riuniti” and University of Trieste, Italy (M.M., D.S., M.A., F.N., B.P., G.B., F.R., G.S.)
| | - Francesco Negri
- Cardiovascular Department, “Ospedali Riuniti” and University of Trieste, Italy (M.M., D.S., M.A., F.N., B.P., G.B., F.R., G.S.)
| | - Bruno Pinamonti
- Cardiovascular Department, “Ospedali Riuniti” and University of Trieste, Italy (M.M., D.S., M.A., F.N., B.P., G.B., F.R., G.S.)
| | - Giulia Barbati
- Cardiovascular Department, “Ospedali Riuniti” and University of Trieste, Italy (M.M., D.S., M.A., F.N., B.P., G.B., F.R., G.S.)
| | - Federica Ramani
- Cardiovascular Department, “Ospedali Riuniti” and University of Trieste, Italy (M.M., D.S., M.A., F.N., B.P., G.B., F.R., G.S.)
| | - Andrea Di Lenarda
- Cardiovascular Center, “Azienda per i Servizi Sanitari” n 1, Trieste, Italy (A.D.L.)
| | - Gianfranco Sinagra
- Cardiovascular Department, “Ospedali Riuniti” and University of Trieste, Italy (M.M., D.S., M.A., F.N., B.P., G.B., F.R., G.S.)
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7
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Toldo S, Kannan H, Bussani R, Anzini M, Sonnino C, Sinagra G, Merlo M, Mezzaroma E, De-Giorgio F, Silvestri F, Van Tassell BW, Baldi A, Abbate A. Formation of the inflammasome in acute myocarditis. Int J Cardiol 2014; 171:e119-21. [PMID: 24439778 DOI: 10.1016/j.ijcard.2013.12.137] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Accepted: 12/20/2013] [Indexed: 01/14/2023]
Affiliation(s)
- Stefano Toldo
- VCU Pauley Heart Center, Virginia Commonwealth University, Richmond, VA, USA; Victoria Johnson Research Laboratories, Virginia Commonwealth University, Richmond, VA, USA
| | - Harsha Kannan
- VCU Pauley Heart Center, Virginia Commonwealth University, Richmond, VA, USA; Victoria Johnson Research Laboratories, Virginia Commonwealth University, Richmond, VA, USA
| | - Rossana Bussani
- Institute of Pathologic Anatomy, University of Trieste, Trieste, Italy
| | - Marco Anzini
- Cardiovascular Department "Ospedali Riuniti", University of Trieste, Trieste, Italy
| | - Chiara Sonnino
- VCU Pauley Heart Center, Virginia Commonwealth University, Richmond, VA, USA; Victoria Johnson Research Laboratories, Virginia Commonwealth University, Richmond, VA, USA
| | - Gianfranco Sinagra
- Cardiovascular Department "Ospedali Riuniti", University of Trieste, Trieste, Italy
| | - Marco Merlo
- Cardiovascular Department "Ospedali Riuniti", University of Trieste, Trieste, Italy
| | - Eleonora Mezzaroma
- VCU Pauley Heart Center, Virginia Commonwealth University, Richmond, VA, USA; Victoria Johnson Research Laboratories, Virginia Commonwealth University, Richmond, VA, USA; Department of Pharmacotherapy and Outcomes Studies, Virginia Commonwealth University, Richmond, VA, USA
| | | | - Furio Silvestri
- Institute of Pathologic Anatomy, University of Trieste, Trieste, Italy
| | - Benjamin W Van Tassell
- Victoria Johnson Research Laboratories, Virginia Commonwealth University, Richmond, VA, USA; Department of Pharmacotherapy and Outcomes Studies, Virginia Commonwealth University, Richmond, VA, USA
| | - Alfonso Baldi
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, Second University of Naples, Italy
| | - Antonio Abbate
- VCU Pauley Heart Center, Virginia Commonwealth University, Richmond, VA, USA; Victoria Johnson Research Laboratories, Virginia Commonwealth University, Richmond, VA, USA.
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Bertrand P, Grieten L, Smeets C, Verbrugge F, Mullens W, Vrolix M, Rivero-Ayerza M, Verhaert D, Vandervoort P, Tong L, Ramalli A, Tortoli P, D'hoge J, Bajraktari G, Lindqvist P, Henein M, Obremska M, Boratynska M, Kurcz J, Zysko D, Baran T, Klinger M, Darahim K, Mueller H, Carballo D, Popova N, Vallee JP, Floria M, Chistol R, Tinica G, Grecu M, Rodriguez Serrano M, Osa-Saez A, Rueda-Soriano J, Buendia-Fuentes F, Domingo-Valero D, Igual-Munoz B, Alonso-Fernandez P, Quesada-Carmona A, Miro-Palau V, Palencia-Perez M, Bech-Hanssen O, Polte C, Lagerstrand K, Janulewicz M, Gao S, Erdogan E, Akkaya M, Bacaksiz A, Tasal A, Sonmez O, Turfan M, Kul S, Vatankulu M, Uyarel H, Goktekin O, Mincu R, Magda L, Mihaila S, Florescu M, Mihalcea D, Enescu O, Chiru A, Popescu B, Tiu C, Vinereanu D, Broch K, Kunszt G, Massey R, De Marchi S, Aakhus S, Gullestad L, Urheim S, Yuan L, Feng J, Jin X, Bombardini T, Casartelli M, Simon D, Gaspari M, Procaccio F, Hasselberg N, Haugaa K, Brunet A, Kongsgaard E, Donal E, Edvardsen T, Sahin T, Yurdakul S, Cengiz B, Bozkurt A, Aytekin S, Cesana F, Spano' F, Santambrogio G, Alloni M, Vallerio P, Salvetti M, Carerj S, Gaibazzi N, Rigo F, Moreo A, Wdowiak-Okrojek K, Michalski B, Kasprzak J, Shim A, Lipiec P, Generati G, Pellegrino M, Bandera F, Donghi V, Alfonzetti E, Guazzi M, Marcun R, Stankovic I, Farkas J, Vlahovic-Stipac A, Putnikovic B, Kadivec S, Kosnik M, Neskovic A, Lainscak M, Iliuta L, Szymanski P, Lipczynska M, Klisiewicz A, Sobieszczanska-Malek M, Zielinski T, Hoffman P, Gjerdalen GF, Hisdal J, Solberg E, Andersen T, Radunovic Z, Steine K, Svanadze A, Poteshkina N, Krylova N, Mogutova P, Shim A, Kasprzak J, Szymczyk E, Wdowiak-Okrojek K, Michalski B, Stefanczyk L, Lipiec P, Benedek T, Matei C, Jako B, Suciu Z, Benedek I, Yaroshchuk NA, Kochmasheva VV, Dityatev VP, Kerbikov OB, Przewlocka-Kosmala M, Orda A, Karolko B, Mysiak A, Kosmala W, Rechcinski T, Wierzbowska-Drabik K, Lipiec P, Chmiela M, Kasprzak J, Aziz A, Hooper J, Rayasamudra S, Uppal H, Asghar O, Potluri R, Zaroui A, Mourali M, Rezine Z, Mbarki S, Jemaa M, Aloui H, Mechmeche R, Farhati A, Gripari P, Maffessanti F, Tamborini G, Muratori M, Fusini L, Vignati C, Bartorelli A, Alamanni F, Agostoni P, Pepi M, Ruiz Ortiz M, Mesa D, Delgado M, Seoane T, Carrasco F, Martin M, Mazuelos F, Suarez De Lezo Herreros De Tejada J, Romero M, Suarez De Lezo J, Brili S, Stamatopoulos I, Misailidou M, Chrisochoou C, Christoforatou E, Stefanadis C, Ruiz Ortiz M, Mesa D, Delgado M, Martin M, Seoane T, Carrasco F, Ojeda S, Segura J, Pan M, Suarez De Lezo J, Cammalleri V, Ussia G, Muscoli S, Marchei M, Sergi D, Mazzotta E, Romeo F, Igual Munoz B, Bel Minguez A, Perez Guillen M, Maceira Gonzalez A, Monmeneu Menadas J, Hernandez Acuna C, Estornell Erill J, Lopez Lereu P, Francisco Jose Valera Martinez F, Montero Argudo A, Sunbul M, Akhundova A, Sari I, Erdogan O, Mutlu B, Cacicedo A, Velasco Del Castillo S, Anton Ladislao A, Aguirre Larracoechea U, Rodriguez Sanchez I, Subinas Elorriaga A, Oria Gonzalez G, Onaindia Gandarias J, Laraudogoitia Zaldumbide E, Lekuona Goya I, Ding W, Zhao Y, Lindqvist P, Nilson J, Winter R, Holmgren A, Ruck A, Henein M, Attenhofer Jost CH, Soyka R, Oxenius A, Kretschmar O, Valsangiacomo Buechel E, Greutmann M, Weber R, Keramida K, Kouris N, Kostopoulos V, Karidas V, Damaskos D, Makavos G, Paraskevopoulos K, Olympios C, Eskesen K, Olsen N, Fritz-Hansen T, Sogaard P, Cameli M, Lisi M, Righini F, Curci V, Massoni A, Natali B, Maccherini M, Chiavarelli M, Massetti M, Mondillo S, Mabrouk Salem Omar A, Ahmed Abdel-Rahman M, Khorshid H, Rifaie O, Santoro C, Santoro A, Ippolito R, De Palma D, De Stefano F, Muscariiello R, Galderisi M, Squeri A, Censi S, Baldelli M, Grattoni C, Cremonesi A, Bosi S, Saura Espin D, Gonzalez Canovas C, Gonzalez Carrillo J, Oliva Sandoval M, Caballero Jimenez L, Espinosa Garcia M, Garcia Navarro M, Valdes Chavarri M, De La Morena Valenzuela G, Ryu S, Shin D, Son J, Choi J, Goh C, Choi J, Park J, Hong G, Sklyanna O, Yuan L, Yuan L, Planinc I, Bagadur G, Ljubas J, Baricevic Z, Skoric B, Velagic V, Bijnens B, Milicic D, Cikes M, Gospodinova M, Chamova T, Guergueltcheva V, Ivanova R, Tournev I, Denchev S, Ancona R, Comenale Pinto S, Caso P, Arenga F, Coppola M, Calabro R, Neametalla H, Boitard S, Hamdi H, Planat-Benard V, Casteilla L, Li Z, Hagege A, Mericskay M, Menasche P, Agbulut O, Merlo M, Stolfo D, Anzini M, Negri F, Pinamonti B, Barbati G, Di Lenarda A, Sinagra G, Stolfo D, Merlo M, Pinamonti B, Gigli M, Poli S, Porto A, Di Nora C, Barbati G, Di Lenarda A, Sinagra G, Coppola C, Piscopo G, Cipresso C, Rea D, Maurea C, Esposito E, Arra C, Maurea N, Nemes A, Kalapos A, Domsik P, Forster T, Voilliot D, Huttin O, Vaugrenard T, Schwartz J, Sellal JM, Aliot E, Juilliere Y, Selton-Suty C, Sanchez Millan PJ, Cabeza Lainez P, Castillo Ortiz J, Chueca Gonzalez E, Gheorghe L, Fernandez Garcia P, Herruzo Rojas M, Del Pozo Contreras R, Fernandez Garcia M, Vazquez Garcia R, Rosca M, Popescu B, Botezatu D, Calin A, Beladan C, Gurzun M, Enache R, Ginghina C, Farouk H, Al-Maimoony T, Alhadad A, El Serafi M, Abdel Ghany M, Poorzand H, Mirfeizi S, Javanbakht A, Tellatin S, Famoso G, Dassie F, Martini C, Osto E, Maffei P, Iliceto S, Tona F, Radunovic Z, Steine K, Jedrzejewska I, Braksator W, Krol W, Swiatowiec A, Sawicki J, Kostarska-Srokosz E, Dluzniewski M, Maceira Gonzalez AM, Cosin-Sales J, Diago J, Aguilar J, Ruvira J, Monmeneu J, Igual B, Lopez-Lereu M, Estornell J, Olszanecka A, Dragan A, Kawecka-Jaszcz K, Czarnecka D, Scholz F, Gaudron P, Hu K, Liu D, Florescu C, Herrmann S, Bijnens B, Ertl G, Stoerk S, Weidemann F, Krestjyaninov M, Razin V, Gimaev R, Bogdanovic Z, Burazor I, Deljanin Ilic M, Peluso D, Muraru D, Cucchini U, Mihaila S, Casablanca S, Pigatto E, Cozzi F, Punzi L, Badano L, Iliceto S, Zhdanova E, Rameev V, Safarova A, Moisseyev S, Kobalava Z, Magnino C, Omede' P, Avenatti E, Presutti D, Losano I, Moretti C, Bucca C, Gaita F, Veglio F, Milan A, Bellsham-Revell H, Bell A, Miller O, Simpson J, Hwang Y, Kim G, Jung M, Woo G, Driessen M, Leiner T, Schoof P, Breur J, Sieswerda G, Meijboom F, Bellsham-Revell H, Hayes N, Anderson D, Austin B, Razavi R, Greil G, Simpson J, Bell A, Zhao X, Xu X, Qin Y, Szmigielski CA, Styczynski G, Sobczynska M, Placha G, Kuch-Wocial A, Ikonomidis I, Voumbourakis A, Triantafyllidi H, Pavlidis G, Varoudi M, Papadakis I, Trivilou P, Paraskevaidis I, Anastasiou-Nana M, Lekakis I, Kong W, Yip J, Ling L, Milan A, Tosello F, Leone D, Bruno G, Losano I, Avenatti E, Sabia L, Veglio F, Zaborska B, Baran J, Pilichowska-Paszkiet E, Sikora-Frac M, Michalowska I, Kulakowski P, Budaj A, Mega S, Bono M, De Francesco V, Castiglione I, Ranocchi F, Casacalenda A, Goffredo C, Patti G, Di Sciascio G, Musumeci F, Kennedy M, Waterhouse D, Sheahan R, Foley D, Mcadam B, Ancona R, Comenale Pinto S, Caso P, Arenga F, Coppola M, Calabro R, Remme EW, Smedsrud MK, Hasselberg NE, Smiseth OA, Edvardsen T, Halmai L, Nemes A, Kardos A, Neubauer S, Degiovanni A, Baduena L, Dell'era G, Occhetta E, Marino P, Hotchi J, Yamada H, Nishio S, Bando M, Hayashi S, Hirata Y, Amano R, Soeki T, Wakatsuki T, Sata M, Lamia B, Molano L, Viacroze C, Cuvelier A, Muir J, Lipczynska M, Piotr Szymanski P, Anna Klisiewicz A, Lukasz Mazurkiewicz L, Piotr Hoffman P, Van 'T Sant J, Wijers S, Ter Horst I, Leenders G, Cramer M, Doevendans P, Meine M, Hatam N, Goetzenich A, Aljalloud A, Mischke K, Hoffmann R, Autschbach R, Sikora-Frac M, Zaborska B, Maciejewski P, Bednarz B, Budaj A, Evangelista A, Torromeo C, Pandian N, Nardinocchi P, Varano V, Schiariti M, Teresi L, Puddu P, Storve S, Dalen H, Snare S, Haugen B, Torp H, Fehri W, Mahfoudhi H, Mezni F, Annabi M, Taamallah K, Dahmani R, Haggui A, Hajlaoui N, Lahidheb D, Haouala H, Colombo A, Carminati M, Maffessanti F, Gripari P, Pepi M, Lang R, Caiani E, Walker J, Abadi S, Agmon Y, Carasso S, Aronson D, Mutlak D, Lessick J, Saxena A, Ramakrishnan S, Juneja R, Ljubas J, Reskovic Luksic V, Matasic R, Pezo Nikolic B, Lovric D, Separovic Hanzevacki J, Quattrone A, Zito C, Alongi G, Vizzari G, Bitto A, De Caridi G, Greco M, Tripodi R, Pizzino G, Carerj S, Ibrahimi P, Jashari F, Johansson E, Gronlund C, Bajraktari G, Wester P, Henein M, Kosmala W, Marwick T, Souza JRM, Zacharias LGT, Geloneze B, Pareja JC, Chaim A, Nadruz WJ, Coelho OR, Apostolovic S, Stanojevic D, Jankovic-Tomasevic R, Salinger-Martinovic S, Djordjevic-Radojkovic D, Pavlovic M, Tahirovic E, Musial-Bright L, Lainscak M, Duengen H, Filipiak D, Kasprzak J, Lipiec P. Poster session Wednesday 11 December all day display: 11/12/2013, 09:30-16:00 * Location: Poster area. Eur Heart J Cardiovasc Imaging 2013. [DOI: 10.1093/ehjci/jet202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Martelli A, Testai L, Anzini M, Cappelli A, Di Capua A, Biava M, Poce G, Consalvi S, Giordani A, Caselli G, Rovati L, Ghelardini C, Patrignani P, Sautebin L, Breschi M, Calderone V. The novel anti-inflammatory agent VA694, endowed with both NO-releasing and COX2-selective inhibiting properties, exhibits NO-mediated positive effects on blood pressure, coronary flow and endothelium in an experimental model of hypertension and endothelial dysfunction. Pharmacol Res 2013; 78:1-9. [DOI: 10.1016/j.phrs.2013.09.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Revised: 09/18/2013] [Accepted: 09/20/2013] [Indexed: 11/29/2022]
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Anzini M, Merlo M, Sabbadini G, Barbati G, Finocchiaro G, Pinamonti B, Salvi A, Perkan A, Di Lenarda A, Bussani R, Bartunek J, Sinagra G. Long-Term Evolution and Prognostic Stratification of Biopsy-Proven Active Myocarditis. Circulation 2013; 128:2384-94. [DOI: 10.1161/circulationaha.113.003092] [Citation(s) in RCA: 124] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Marco Anzini
- From the Cardiovascular Department, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (M.A., M.M., G.S., G.B., G.F., B.P., A.S., A.P., G.S.); Cardiovascular Centre, Azienda per Servizi Sanitari no. 1 Triestina, Trieste, Italy (A.D.L.); Institute of Pathological Anatomy and Histology, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (R.B.); and Cardiovascular Centre Aalst, OLV Clinic, Aalst, Belgium (J.B.)
| | - Marco Merlo
- From the Cardiovascular Department, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (M.A., M.M., G.S., G.B., G.F., B.P., A.S., A.P., G.S.); Cardiovascular Centre, Azienda per Servizi Sanitari no. 1 Triestina, Trieste, Italy (A.D.L.); Institute of Pathological Anatomy and Histology, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (R.B.); and Cardiovascular Centre Aalst, OLV Clinic, Aalst, Belgium (J.B.)
| | - Gastone Sabbadini
- From the Cardiovascular Department, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (M.A., M.M., G.S., G.B., G.F., B.P., A.S., A.P., G.S.); Cardiovascular Centre, Azienda per Servizi Sanitari no. 1 Triestina, Trieste, Italy (A.D.L.); Institute of Pathological Anatomy and Histology, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (R.B.); and Cardiovascular Centre Aalst, OLV Clinic, Aalst, Belgium (J.B.)
| | - Giulia Barbati
- From the Cardiovascular Department, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (M.A., M.M., G.S., G.B., G.F., B.P., A.S., A.P., G.S.); Cardiovascular Centre, Azienda per Servizi Sanitari no. 1 Triestina, Trieste, Italy (A.D.L.); Institute of Pathological Anatomy and Histology, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (R.B.); and Cardiovascular Centre Aalst, OLV Clinic, Aalst, Belgium (J.B.)
| | - Gherardo Finocchiaro
- From the Cardiovascular Department, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (M.A., M.M., G.S., G.B., G.F., B.P., A.S., A.P., G.S.); Cardiovascular Centre, Azienda per Servizi Sanitari no. 1 Triestina, Trieste, Italy (A.D.L.); Institute of Pathological Anatomy and Histology, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (R.B.); and Cardiovascular Centre Aalst, OLV Clinic, Aalst, Belgium (J.B.)
| | - Bruno Pinamonti
- From the Cardiovascular Department, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (M.A., M.M., G.S., G.B., G.F., B.P., A.S., A.P., G.S.); Cardiovascular Centre, Azienda per Servizi Sanitari no. 1 Triestina, Trieste, Italy (A.D.L.); Institute of Pathological Anatomy and Histology, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (R.B.); and Cardiovascular Centre Aalst, OLV Clinic, Aalst, Belgium (J.B.)
| | - Alessandro Salvi
- From the Cardiovascular Department, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (M.A., M.M., G.S., G.B., G.F., B.P., A.S., A.P., G.S.); Cardiovascular Centre, Azienda per Servizi Sanitari no. 1 Triestina, Trieste, Italy (A.D.L.); Institute of Pathological Anatomy and Histology, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (R.B.); and Cardiovascular Centre Aalst, OLV Clinic, Aalst, Belgium (J.B.)
| | - Andrea Perkan
- From the Cardiovascular Department, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (M.A., M.M., G.S., G.B., G.F., B.P., A.S., A.P., G.S.); Cardiovascular Centre, Azienda per Servizi Sanitari no. 1 Triestina, Trieste, Italy (A.D.L.); Institute of Pathological Anatomy and Histology, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (R.B.); and Cardiovascular Centre Aalst, OLV Clinic, Aalst, Belgium (J.B.)
| | - Andrea Di Lenarda
- From the Cardiovascular Department, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (M.A., M.M., G.S., G.B., G.F., B.P., A.S., A.P., G.S.); Cardiovascular Centre, Azienda per Servizi Sanitari no. 1 Triestina, Trieste, Italy (A.D.L.); Institute of Pathological Anatomy and Histology, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (R.B.); and Cardiovascular Centre Aalst, OLV Clinic, Aalst, Belgium (J.B.)
| | - Rossana Bussani
- From the Cardiovascular Department, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (M.A., M.M., G.S., G.B., G.F., B.P., A.S., A.P., G.S.); Cardiovascular Centre, Azienda per Servizi Sanitari no. 1 Triestina, Trieste, Italy (A.D.L.); Institute of Pathological Anatomy and Histology, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (R.B.); and Cardiovascular Centre Aalst, OLV Clinic, Aalst, Belgium (J.B.)
| | - Jozef Bartunek
- From the Cardiovascular Department, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (M.A., M.M., G.S., G.B., G.F., B.P., A.S., A.P., G.S.); Cardiovascular Centre, Azienda per Servizi Sanitari no. 1 Triestina, Trieste, Italy (A.D.L.); Institute of Pathological Anatomy and Histology, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (R.B.); and Cardiovascular Centre Aalst, OLV Clinic, Aalst, Belgium (J.B.)
| | - Gianfranco Sinagra
- From the Cardiovascular Department, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (M.A., M.M., G.S., G.B., G.F., B.P., A.S., A.P., G.S.); Cardiovascular Centre, Azienda per Servizi Sanitari no. 1 Triestina, Trieste, Italy (A.D.L.); Institute of Pathological Anatomy and Histology, “Ospedali Riuniti di Trieste” and University of Trieste, Trieste, Italy (R.B.); and Cardiovascular Centre Aalst, OLV Clinic, Aalst, Belgium (J.B.)
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Gortani G, Anzini M, Berton E, Rabusin M, Murru F, Benettoni A. Abrupt intracardiac growth of a Wilms tumor. J Pediatr 2013; 163:918.e1. [PMID: 23628373 DOI: 10.1016/j.jpeds.2013.03.062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Accepted: 03/21/2013] [Indexed: 10/26/2022]
Affiliation(s)
- Giulia Gortani
- Institute for Maternal and Child Health, IRCCS Burlo Garofolo, Trieste, Italy
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Anzini M, Moretti M, Merlo M, Perkan A, Bussani R, Sinagra G. [Controversial issues and working practice in myocarditis: from scientific data to clinical grounds]. G Ital Cardiol (Rome) 2013; 14:504-16. [PMID: 23877548 DOI: 10.1714/1308.14459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Although the cause of myocarditis often remains unknown, a large variety of infections, systemic diseases, drugs and toxins have been associated with this disease. In most cases, myocarditis is induced by cardiotropic viruses and often evolves silently without discernible prognostic impact. However, in some patients, the lack of complete viral clearance and/or the association of a heart-specific inflammation can cause persistent myocyte damage, ultimately leading to progressive myocardial dilation and dysfunction or life-threatening arrhythmias. Spontaneous improvement of left ventricular function is described for 40-50% of patients. The diagnostic work-up and prognostic assessment of myocarditis should be multiparametric and all available resources should be employed, i.e. biomarkers of myocardial damage and ventricular dysfunction (troponin I, brain natriuretic peptide), advanced echocardiography, cardiac magnetic resonance and, in selected cases, endomyocardial biopsy (with histopathologic, immunohistochemical and virological analyses). These are the necessary prerequisites for an evidence-based and personalized management of myocarditis, which may require in some cases specific immunoactive treatments. However, controversial issues regarding diagnosis (such as role and timing of cardiac magnetic resonance imaging, role of endomyocardial biopsy) and therapy of myocarditis still remain unsolved. The purpose of this review is to analyze these crucial features in order to provide useful instructions for clinical practice.
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Affiliation(s)
- Marco Anzini
- Dipartimento Cardiovascolare, Azienda Ospedaliero-Universitaria Ospedali Riuniti, Trieste, Italy
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Moimas S, Zacchigna S, Merlo M, Buiatti A, Anzini M, Dreas L, Salvi A, Di Lenarda A, Giacca M, Sinagra G. Idiopathic dilated cardiomyopathy and persistent viral infection: Lack of association in a controlled study using a quantitative assay. Heart Lung Circ 2012; 21:787-93. [DOI: 10.1016/j.hlc.2012.07.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2012] [Revised: 07/02/2012] [Accepted: 07/16/2012] [Indexed: 11/25/2022]
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Biava M, C. Porretta G, Poce G, Battilocchio C, Botta M, Manetti F, Rovini M, Cappelli A, Sautebin L, Rossi A, Pergola C, Ghelardini C, Galeotti N, Makovec F, Giordani A, Anzellotti P, Tacconelli S, Patrignani P, Anzini M. Enlarging the NSAIDs Family: Ether, Ester and Acid Derivatives of the 1,5-Diarylpyrrole Scaffold as Novel Anti-Inflammatory and Analgesic Agents. Curr Med Chem 2011; 18:1540-54. [DOI: 10.2174/092986711795328364] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Accepted: 03/18/2011] [Indexed: 11/22/2022]
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15
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Rizzo M, Ventrice D, Monforte F, Procopio S, De Sarro G, Anzini M, Cappelli A, Makovec F. Sensitive SPE–HPLC method to determine a novel angiotensin-AT1 antagonist in biological samples. J Pharm Biomed Anal 2004; 35:321-9. [PMID: 15063465 DOI: 10.1016/j.jpba.2003.12.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [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: 07/29/2003] [Revised: 12/04/2003] [Accepted: 12/05/2003] [Indexed: 11/15/2022]
Abstract
A high-performance liquid chromatography (HPLC)-method after solid-phase extraction (SPE) has been developed in order to determine a new angiotensin-AT1 antagonist, i.e. CR 3210 (C27H24N8; MW = 460.54), 4-[4-[(2-ethyl-5,7-dimethylimidazo[4,5-b]pyridin-3-yl)methyl]phenyl]-3-(2H-tetrazol-5-yl)quinoline in rat plasma and urine after oral administration to Sprague-Dawley rats. CR 3210 and the internal standard (IS) CR 1505 (loxiglumide), i.e. 4-[(3,4-dichlorobenzoyl)amino]-5-[(3-methoxypropyl)pentylamino]-5-oxopentanoic acid, were isolated from rat urine and plasma by solid-phase extraction. The procedure was optimized regarding the sorbent extraction material, the pH in the conditioning solution, the washing step, the dry time and the type of elution solvent. The separation was performed by reversed-phase high-performance liquid chromatography with ultraviolet detection. The samples were injected onto the analytical column (Tracer Extrasil ODS1) and detected at 238 nm, giving a capacity factor of 1.87 for CR 3210 and 1.10 for the internal standard. The selectivity of the method was satisfactory. The mean recovery of CR 3210 from spiked rat plasma was 68.5 at 75 ng/ml and 80.9 at 3000 ng/ml; the mean recovery of CR 3210 from spiked rat urine was 69.9 at 75 ng/ml and 78.6 at 3000 ng/ml. The lower limit of detection (LOD) was 14 ng/ml in plasma and 22 ng/ml in urine samples. The lower limit of quantification (LOQ) was taken as 30 ng/ml, the lowest calibration standard using 500 microl rat plasma and urine. The procedures were validated according to international standards with a good reproducibility and linear response from 30 to 3000 ng/ml, for either plasma or urine. The sensitivity of the method allowed for its application to pharmacokinetic studies.
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Affiliation(s)
- M Rizzo
- Dipartimento di Scienze Farmacobiologiche, Università degli Studi Magna Graecia di Catanzaro, Complesso Ninì Barbieri, Roccelletta di Borgia (CZ) 88021, Italy.
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Rizzo M, Anzini M, Cappelli A, Vomero S, Ventrice D, De Sarro G, Procopio S, Costa N, Makovec F. Determination of a novel angiotensin-AT1 antagonist CR 3210 in biological samples by HPLC. ACTA ACUST UNITED AC 2003; 58:837-44. [PMID: 13679177 DOI: 10.1016/s0014-827x(03)00141-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [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: 11/19/2022]
Abstract
A simple and sensitive method for the determination of a new angiotensin-AT(1) antagonist i.e. CR 3210, 4-[4-[(2-ethyl-5,7-dimethylimidazo[4,5-b]pyridin-3-yl)methyl]phenyl]-3-(2H-tetrazol-5-yl)quinoline, is described. The assay was utilised to describe the pharmacokinetic profile of the title compound after intravenous and intraperitoneal administration to Sprague Dawley rats. CR 3210 and the internal standard CR 1505 (loxiglumide, 4-[(3,4-dichlorobenzoyl)amino-5-[(3-methoxypropyl)pentylamino]-5-oxopentanoic acid) were isolated from rat plasma by solid-phase extraction. The sorbent extraction material along with the pH in the conditioning solution and the washing volume were considered pivotal parameters for the optimisation of the procedure. The separations were performed by reversed-phase high-performance liquid chromatography with ultraviolet detection. The samples were injected onto the analytical column (Tracer Extrasil ODS1) and detected at 238 nm, giving a retention time of 6.19 min for CR 3210 and 4.39 min for the internal standard, respectively. The selectivity of the method showed to be satisfactory. The mean recovery of CR 3210 from spiked rat plasma was 80.3 at 1 microg/ml and 79.9 at 2 microg/ml. The lower limit of detection (LOD) was taken as 0.014 microg/ml in plasma samples. The lower limit of quantification (LOQ) was taken as 0.02 microg/ml, the lowest calibration standard using 500 microg rat plasma. The procedures were validated according to international standards with a good reproducibility and linear response from 0.02 to 2 microg/ml. The sensitivity of the method allowed for its application to pharmacokinetic studies. The maximal concentration was detected 5' after the IV administration, whereas no significant absorption was evident after IP administration of CR 3210 to Sprague-Dawley rats. Our study suggests the absence of extensive bio-transformation of the drug in vivo, supported by the evidence that no metabolites were detected in plasma samples.
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Affiliation(s)
- M Rizzo
- Dipartimento di Scienze Farmacobiologiche, Università degli Studi Magna Graecia di Catanzaro, Complesso Ninì Barbieri, 88021 Roccelletta di Borgia, CZ, Italy.
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Azzolina O, Collina S, Linati L, Anzini M, Cappelli A, Scheideler MA, Sbacchi M. Enantiomers of 2-[(Acylamino)ethyl]-1,4-benzodiazepines, potent ligands of kappa-opioid receptor: chiral chromatographic resolution, configurational assignment and biological activity. Chirality 2002; 13:606-12. [PMID: 11579457 DOI: 10.1002/chir.1185] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [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: 11/11/2022]
Abstract
Compounds 2a and 3a-e are racemic 2-[(acylamino)ethyl]-1,4-benzodiazepines, tifluadom analogs, with high affinity and selectivity towards the kappa-opioid receptor. We describe the enantiomeric separation of all compounds through liquid chromatography with chiral stationary phases, as well as the resolution of the enantiomers of the most interesting compounds, 2a and 3a, by the semipreparative column Chiralpak AD. The configuration of the resolved enantiomers was investigated: the comparative study of CD and (1)H NMR spectra shows that compounds (-)-2a and (-)-3a have the same absolute configuration of (+)-(S)-tifluadom. A study on the stereoselective interaction with opiate receptors is reported.
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Affiliation(s)
- O Azzolina
- Dipartimento di Chimica Farmaceutica, Università di Pavia, Pavia, Italy.
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Anzini M, Cappelli A, Vomero S, Seeber M, Menziani MC, Langer T, Hagen B, Manzoni C, Bourguignon JJ. Mapping and fitting the peripheral benzodiazepine receptor binding site by carboxamide derivatives. Comparison of different approaches to quantitative ligand-receptor interaction modeling. J Med Chem 2001; 44:1134-50. [PMID: 11312914 DOI: 10.1021/jm0009742] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.6] [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: 11/29/2022]
Abstract
The synthetic-computational approach to the study of the binding site of peripheral benzodiazepine receptor (PBR) ligands related to 1-(2-chlorophenyl)-N-methyl-N-(1-methylpropyl)-3-isoquinolinecarboxamide (PK11195, 1) within their receptor (Cappelli et al. J. Med. Chem. 1997, 40, 2910-2921) has been extended. A series of carboxamide derivatives endowed with differently substituted planar aromatic or heteroaromatic systems was designed with the aim of getting further information on the topological requisites of the carbonyl and aromatic moieties for interaction with the PBR binding site. The synthesis of most of these compounds involves Weinreb amidation of the appropriate lactone as the key step. The most potent compound, among the newly synthesized ones, shows a nanomolar PBR affinity similar to that shown by 1 and the presence of a basic N-ethyl-N-benzylaminomethyl group in 3-position of the quinoline nucleus. Thus, it may be considered the first example of a new class of water soluble derivatives of 1. Several computational methods were used to furnish descriptors of the isolated ligands (indirect approaches) able to rationalize the variation in the binding affinity of the enlarged series of compounds. Sound QSAR models are obtained by size and shape descriptors (volume approach) which codify for the short-range contributions to ligand-receptor interactions. Molecular descriptors which explicitly account for the electrostatic contribution to the interaction (CoMFA, CoMSIA, and surface approaches) perform well, but they do not improve the quantitative models. Moreover, useful hints for the identification of the antagonist binding site in the three-dimensional modeling of the receptor (direct approach) were provided by the receptor hypothesis derived by the pharmacophoric approach. The ligand-receptor complexes obtained provided a detailed description of the modalities of the interaction and interesting suggestions for further experiments.
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Affiliation(s)
- M Anzini
- Dipartimento di Scienze Farmacobiologiche, Università degli Studi Magna Graecia di Catanzaro, Complesso Ninì Barbieri, 88021 Roccelletta di Borgia, Catanzaro, Italy.
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Matarrese M, Moresco RM, Cappelli A, Anzini M, Vomero S, Simonelli P, Verza E, Magni F, Sudati F, Soloviev D, Todde S, Carpinelli A, Kienle MG, Fazio F. Labeling and evaluation of N-[11C]methylated quinoline-2-carboxamides as potential radioligands for visualization of peripheral benzodiazepine receptors. J Med Chem 2001; 44:579-85. [PMID: 11170647 DOI: 10.1021/jm001004h] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.9] [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: 11/28/2022]
Abstract
The novel quinoline-2-carboxamide derivatives N-[methyl-11C]-3-methyl-4-phenyl-N-(phenylmethyl)quinoline-2-carboxamide ([11C]4), (+/-)-N-[methyl-11C]-3-methyl-N-(1-methylpropyl)-4-phenylquinoline-2-carboxamide ([11C]5), and (+/-)-N-[methyl-11C]-3-methyl-4-(2-fluorophenyl)-N-(1-methylpropyl)quinoline-2-carboxamide ([11C]6) were labeled with carbon-11 (t1/2 = 20.4 min, beta+ = 99.8%) as potential radioligands for the noninvasive assessment of peripheral benzodiazepine type receptors (PBR) in vivo with positron emission tomography (PET). The radiosynthesis consisted of N-methylation of the desmethyl precursors 3-methyl-4-phenyl-N-(phenylmethyl)quinoline-2-carboxamide (4a), (+/-)-3-methyl-N-(1-methylpropyl)-4-phenylquinoline-2-carboxamide (5a), and (+/-)-4-(2-fluorophenyl)-3-methyl-N-(1-methylpropyl)quinoline-2-carboxamide (6a) with either [11C]methyl iodide or [11C]methyl triflate in the presence of tetrabutylammonium hydroxide or potassium hydroxide in dimethylformamide. The radioligands [11C]4, [11C]5, and [11C]6 were synthesized with over 99% radiochemical purity in 30 min, 30 +/- 5% radiochemical yield, calculated at the end of synthesis (EOS) non-decay-corrected, and 2.5 +/- 1.2 Ci/micromol of specific radioactivity. Inhibition studies in rats following intravenous pre-administration of 1-(2-chlorophenyl)-N-methyl-N-(1-methylpropyl)-3-isoquinolinecarboxamide (PK 11195, 1) showed high specific binding to PBR of [11C]4, [11C]5, and [11C]6 in heart, lung, kidney, adrenal gland, spleen, and brain. The biological data suggest that [11C]5, [11C]6, and particularly [11C]4 are promising radioligands for PBR imaging in vivo with PET.
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Affiliation(s)
- M Matarrese
- INB-CNR, University of Milano/Bicocca, Institute H.S. Raffaele, Via Olgettina 60, 20132 Milano, Italy
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20
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Cappelli A, Anzini M, Vomero S, Canullo L, Mennuni L, Makovec F, Doucet E, Hamon M, Menziani MC, De Benedetti PG, Bruni G, Romeo MR, Giorgi G, Donati A. Novel potent and selective central 5-HT3 receptor ligands provided with different intrinsic efficacy. 2. Molecular basis of the intrinsic efficacy of arylpiperazine derivatives at the central 5-HT3 receptors. J Med Chem 1999; 42:1556-75. [PMID: 10229626 DOI: 10.1021/jm981112s] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.2] [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: 11/29/2022]
Abstract
Novel 5-HT3 receptor ligands were designed and synthesized with the aim of obtaining deeper insight into the molecular basis of the intrinsic efficacy of arylpiperazines interacting with the central 5-HT3 receptor. The newly synthesized compounds and some previously published compounds belonging to the same class of heteroarylpiperazines were tested for their potential ability to displace [3H]granisetron from rat cortical membranes. These 5-HT3 receptor binding studies revealed subnanomolar affinity in several of the compounds under study. The most active ligands were quipazine derivatives bearing a phenyl group in the 4-position and various oxygenated alkyl side chains in the 3-position of the quinoline nucleus. Qualitative and theoretical quantitative structure-affinity relationship studies were carried out, and the interaction model for the 5-HT3 ligands related to quipazine with their receptor, proposed in part 1 of the present work, was updated to incorporate the latest data. The potential 5-HT3 agonist/antagonist activity of 12 selected compounds was assessed in vitro on the 5-HT3 receptor-dependent [14C]guanidinium uptake in NG 108-15 cells. Their intrinsic efficacy ranged from the 5-HT3 full agonist properties of compounds 7a and 8h, i to those of partial agonists 10a,d and antagonists 8b,d,e, and 9c, d,h,i. The comparison between these functional data and those relative to the previously described compounds suggested that in this class of 5-HT3 ligands the intrinsic efficacy is modulated in a rather subtle manner by the steric features of the heteroaryl moiety.
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Affiliation(s)
- A Cappelli
- Dipartimento Farmaco Chimico Tecnologico, Università di Siena, Via Banchi di Sotto 55, 53100 Siena, Italy
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21
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Giorgi G, Cappelli A, Anzini M, Vomero S. Characterization of Quinoline Derivatives. II. 7-(4-Methyl-1-piperazinyl)-6H-[1]benzopyrano[3,4-c]quinoline. Acta Crystallogr C 1998. [DOI: 10.1107/s0108270198003941] [Citation(s) in RCA: 3] [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: 11/10/2022] Open
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22
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Cappelli A, Anzini M, Vomero S, Mennuni L, Makovec F, Doucet E, Hamon M, Bruni G, Romeo MR, Menziani MC, De Benedetti PG, Langer T. Novel potent and selective central 5-HT3 receptor ligands provided with different intrinsic efficacy. 1. Mapping the central 5-HT3 receptor binding site by arylpiperazine derivatives. J Med Chem 1998; 41:728-41. [PMID: 9513601 DOI: 10.1021/jm970645i] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.5] [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: 02/06/2023]
Abstract
Synthesis and pharmacological evaluation of a series of condensed quinoline and pyridine derivatives bearing a N-methylpiperazine moiety attached to the 2-position of the quinoline or pyridine nucleus are described. 5-HT receptor binding studies revealed subnanomolar affinity for the 5-HT3 receptor subtype in some of the compounds under study. The most active compound (5b) displayed a Ki value about 1 order of magnitude higher than that of quipazine along with a higher selectivity. The potential 5-HT3 agonist/antagonist activity of four selected compounds was assessed in vitro on 5-HT3 receptor-dependent [14C]guanidinium uptake in NG 108-15 cells. Compound 5j acted as a 5-HT3 agonist in this assay with an EC50 value close to that reported for quipazine, while 5b was a partial agonist with an EC50 value of about 0.25 nM, and compound 5c possessed antagonist properties with an IC50 value (approximately 8 nM) in the same range as those of previously characterized 5-HT3 receptor antagonists. Qualitative and quantitative structure-affinity relationship studies carried out by making use of theoretical molecular descriptors allowed to elucidate the role of the main pharmacophoric components and to develop a model for the interaction of the 5-HT3 ligands related to quipazine with their receptor.
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Affiliation(s)
- A Cappelli
- Dipartimento Farmaco Chimico Technologico, Università di Siena, Italy
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23
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Campiani G, Cappelli A, Nacci V, Anzini M, Vomero S, Hamon M, Cagnotto A, Fracasso C, Uboldi C, Caccia S, Consolo S, Mennini T. Novel and highly potent 5-HT3 receptor agonists based on a pyrroloquinoxaline structure. J Med Chem 1997; 40:3670-8. [PMID: 9357534 DOI: 10.1021/jm970376w] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.2] [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: 02/05/2023]
Abstract
The synthesis and the biological evaluation of a series of novel pyrroloquinoxaline derivatives are described. In binding studies several compounds proved to be potent and selective 5-HT3 receptor ligands. The most active pyrroloquinoxalines, 11d and 11e, showed a subnanomolar affinity for 5-HT3 receptor and were able to functionally discriminate the central and peripheral 5-HT3 receptor, being agonists and antagonists, respectively. In functional studies ([14C]-guanidinium accumulation test in NG 108-15 cells, in vitro) most of the synthesized compounds showed clear-cut 5-HT3 agonist properties. In in vivo studies on the von Bezold-Jarisch reflex test (a peripheral interaction model) the behavior of the tested compounds ranged from agonist to antagonist, while clear agonist properties were obtained with 12a on cortical acetylcholine release in freely moving rats. Pharmacokinetic studies with 11e and 12c indicate that the compounds easily cross the blood-brain barrier (BBB) after systemic administration with a brain/plasma ratio of 17.5 and 37.5, respectively. Thus compounds 11e and 12c represent the most potent central 5-HT3 agonists identified to date that are able to cross the blood-brain barrier.
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Affiliation(s)
- G Campiani
- Dipartimento Farmaco Chimico Tecnologico, Universitá di Siena, Italy
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24
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Cappelli A, Anzini M, Vomero S, De Benedetti PG, Menziani MC, Giorgi G, Manzoni C. Mapping the peripheral benzodiazepine receptor binding site by conformationally restrained derivatives of 1-(2-chlorophenyl)-N-methyl-N-(1-methylpropyl)-3- isoquinolinecarboxamide (PK11195). J Med Chem 1997; 40:2910-21. [PMID: 9288173 DOI: 10.1021/jm960516m] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.6] [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: 02/05/2023]
Abstract
A synthetic-computational approach to the study of the binding site of peripheral benzodiazepine receptor (PBR) ligands related to 1-(2-chlorophenyl)-N-methyl-N-(1-methylpropyl)-3-isoquinolinecarboxam ide (PK11195, 1) within their receptor has been developed. A wide series of conformationally restrained derivatives of 1 has been designed with the aim of probing the PBR binding site systematically. The synthesis of these compounds involves palladium-catalyzed coupling and amidation as the key steps. Twenty-nine rigid and semirigid derivatives of 1 were tested in binding studies using [3H]-1, and most of these showed PBR affinities in the nanomolar range. The essential role of the carbonyl moiety as a primary pharmacophoric element in the recognition by and the binding to PBR has been confirmed, and the restricted range of the carbonyl orientations, which characterizes the most potent ligands, points to a specific hydrogen-bonding interaction, mainly directed by the geometrical factors, when the electronic ones are fulfilled. Moreover, the fundamental importance of the short-range dispersive interactions in the modulation of the binding affinity and, hence, in the stabilization of the ligand-receptor complex, emerged from the QSAR models reported.
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Affiliation(s)
- A Cappelli
- Dipartimento Farmaco Chimico Tecnologico, Università di Siena, Italy
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25
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Giorgi G, Cappelli A, Anzini M, Vomero S, Marchetti F. Characterization of Quinoline Derivatives. I. 6,7-Dihydro-8-(4-methyl-1-piperazinyl)[1]benzoxepino[4,5- c]quinoline 0.13-Hydrate. Acta Crystallogr C 1997. [DOI: 10.1107/s0108270196014564] [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: 11/10/2022] Open
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26
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Anzini M, Cappelli A, Vomero S, Giorgi G, Langer T, Bruni G, Romeo MR, Basile AS. Molecular basis of peripheral vs central benzodiazepine receptor selectivity in a new class of peripheral benzodiazepine receptor ligands related to alpidem. J Med Chem 1996; 39:4275-84. [PMID: 8863805 DOI: 10.1021/jm960325j] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.0] [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: 02/02/2023]
Abstract
Alpidem (1), the anxiolytic imidazopyridine, has nanomolar binding affinity for both the central benzodiazepine receptor (CBR) and the peripheral benzodiazepine receptor (PBR). A novel class of PBR ligands related to alpidem has been designed by comparing the interaction models of alpidem with PBR and CBR. Several compounds in this class have shown high selectivity for PBR vs CBR, and the selectivity has been discussed in terms of interaction models. The binding behavior of the three selected compounds was extensively studied by competition and saturation assays, and the results suggest that they are capable of recognizing two sites labeled by [3H]PK11195. The molecular structure of one of the most active compounds (4e) has been determined by X-ray diffraction and compared with that of alpidem. Molecular modeling studies suggest that the bioactive conformation of 4e is likely to be very similar to the conformation found in the crystal.
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Affiliation(s)
- M Anzini
- Dipartimento Farmaco Chimico Technologico, Università di Siena, Italy
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27
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Cappelli A, Donati A, Anzini M, Vomero S, De Benedetti PG, Menziani MC, Langer T. Molecular structure and dynamics of some potent 5-HT3 receptor antagonists. Insight into the interaction with the receptor. Bioorg Med Chem 1996; 4:1255-69. [PMID: 8879547 DOI: 10.1016/0968-0896(96)00122-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [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: 02/02/2023]
Abstract
The molecular structure and the dynamic behaviour of some potent 5-HT3 antagonists structurally related to quipazine have been investigated by NMR spectroscopy and by computational methods in order to gain insight into the structure-activity relationships at a molecular level. The role of the different dynamic behaviour of these compounds in the binding to 5-HT3 receptors is discussed. A model of ligand-receptor interaction has been developed on the basis of molecular orbital calculations and on the reference ligands quipazine, ondansetron and LY278584. The interaction model proposed herein rationalizes the observed agonist-antagonist shift between quipazine and investigated compounds with the assumption of different but overlapping binding domains for antagonists and agonists at the 5-HT3 receptor.
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Affiliation(s)
- A Cappelli
- Dipartimento Farmaco Chimico Tecnologico, Università di Siena, Italy
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28
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Giorgicor G, Anzini M, Cappelli A, Corelli F, Vomero S. Characterization and differentiation of heterocyclic isomers. Part 2. Mass spectrometry and molecular orbital calculations on pyrrolo[1,2-a][1,4]benzodiazepin-4-one, -6-one, and -4,6-dione. J Am Soc Mass Spectrom 1996; 7:653-663. [PMID: 24203480 DOI: 10.1016/1044-0305(96)85611-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/1995] [Revised: 02/26/1996] [Accepted: 03/04/1996] [Indexed: 06/02/2023]
Abstract
Pyrrolo[1,2-a][1,4]benzodiazepin-4-one (1), -6-one (2), and -4,6-dione (3), which are starting materials for the synthesis of pharmacologically interesting compounds that are active as neurotropic agents, have been characterized in the gas phase. The application of different mass spectrometric techniques, such as electron ionization, high-resolution, and tandem mass spectrometry, has allowed the structural characterization and differentiation of their molecular ions and most abundant fragment ions formed in the source. In particular, the two positional isomers 1 and 2 produce quite different mass spectra, and their molecular and the most intense fragment ions yield different metastable mass-analyzed ion kinetic energy spectra. Furthermore, high-resolution mass spectrometry and accurate mass measurements have revealed different elemental compositions and abundances for isobaric fragment ions produced by isomers 1 and 2. From these data and from the comparison with those relevant to compound 3, it has been possible to evaluate the influence of the position of the carbonyl group on the fragmentation pathways.Semiempirical molecular orbital calculations carried out by both the modified neglect of differential overlap and Austin 1 methods have provided useful information on the characterization of the neutrals as well as the molecular ions of compounds 1-3.
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Affiliation(s)
- G Giorgicor
- Centro Interdipartimentale di Analisi e Determinazioni Strutturali, Università di Siena, via P.A. Mattioli, 10, 53100, Siena, Italy
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29
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Cappelli A, Anzini M, Vomero S, Menziani MC, De Benedetti PG, Sbacchi M, Clarke GD, Mennuni L. Synthesis, biological evaluation, and quantitative receptor docking simulations of 2-[(acylamino)ethyl]-1,4-benzodiazepines as novel tifluadom-like ligands with high affinity and selectivity for kappa-opioid receptors. J Med Chem 1996; 39:860-72. [PMID: 8632410 DOI: 10.1021/jm950423p] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.3] [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: 02/01/2023]
Abstract
The synthesis and biological evaluation of a series of 2-substituted 5-phenyl-1,4-benzodiazepines, structurally related to tifluadom (5), the only benzodiazepine that acts simultaneously as a kappa-opioid agonist and a cholecystokinin-A (CCK-A) antagonist, are reported. The radioligand binding models used in these studies were [(125)I](BH)-CCK-8 in rat pancreas (CCK-A), [(3)H]-(MENLE(28,31))-cck-8 in guinea pig cerebral cortex (CCK-B), and [(3)H]U-69593 (kappa(1)), [(3)H]DAMGO (mu), and [(3)H]DADLE (delta) in guinea pig brain. All the title compounds were devoid of significant affinity for both CCK-A and CCK-B receptors, while some of them bound with nanomolar affinity and high selectivity for kappa-opioid receptors. In particular, the 2-thienyl derivative 7A(X = H) with a K(i) = 0.50 nM represents a clear improvement with respect to tifluadom, showing a comparable potency but higher selectivity. The application of computational simulations and linear regression analysis techniques to the complexes between guinea pig kappa (kappa(1))-receptor and the title compounds allowed the identification of the structural determinants for recognition and quantitative elucidation of the structure-affinity relationships in this class of receptors.
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MESH Headings
- Amino Acid Sequence
- Analgesics/metabolism
- Animals
- Benzodiazepines/chemical synthesis
- Benzodiazepines/chemistry
- Benzodiazepines/metabolism
- Binding, Competitive
- Brain/metabolism
- Cerebral Cortex/metabolism
- Computer Graphics
- Conserved Sequence
- Enkephalin, Ala(2)-MePhe(4)-Gly(5)-
- Enkephalin, Leucine-2-Alanine/metabolism
- Enkephalins/metabolism
- Guinea Pigs
- Humans
- Ligands
- Mice
- Models, Molecular
- Molecular Sequence Data
- Molecular Structure
- Pancreas/metabolism
- Protein Conformation
- Radioligand Assay
- Rats
- Receptors, Cholecystokinin/chemistry
- Receptors, Cholecystokinin/metabolism
- Receptors, Opioid, kappa/agonists
- Receptors, Opioid, kappa/metabolism
- Sequence Homology, Amino Acid
- Sincalide/metabolism
- Structure-Activity Relationship
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Affiliation(s)
- A Cappelli
- Dipartimento Farmaco Chimico Tecnologico, Universitá di Siena, Italy
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30
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Anzini M, Cappelli A, Vomero S, Giorgi G, Langer T, Hamon M, Merahi N, Emerit BM, Cagnotto A, Skorupska M. Novel, potent, and selective 5-HT3 receptor antagonists based on the arylpiperazine skeleton: synthesis, structure, biological activity, and comparative molecular field analysis studies. J Med Chem 1995; 38:2692-704. [PMID: 7629808 DOI: 10.1021/jm00014a021] [Citation(s) in RCA: 76] [Impact Index Per Article: 2.6] [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: 01/26/2023]
Abstract
Synthesis and pharmacological evaluation of a series of condensed quinoline derivatives bearing a basic nitrogen on piperazine or [(dimethylamino)ethyl]thio moieties attached at the 2-position of the quinoline nucleus are described. 5-HT receptor binding studies revealed, for most of the compounds studied, nanomolar affinity for the 5-HT3 receptor subtype. The most active compound, benzopyrano[3,4-c]quinoline derivative 5f, displayed a Ki value very similar to that reported for quipazine along with an improved selectivity. Functional and in vivo testing carried out on three selected compounds showed that 5f,j,n are potent 5-HT3 receptor antagonists with potencies in the same range as the best known 5-HT3 receptor antagonists ondansetron, tropisetron, and zacopride. The crystal and molecular structures of compounds 5f,j,n were determined by single-crystal X-ray diffraction and used as starting structures for molecular modeling studies. Comparative molecular field analysis (CoMFA) was applied to binding constants of compounds 5a-p and 6a-h. The cross-validated r2, derived from partial least-squares calculations, indicated a good predictive capacity for affinity values in the series of compounds investigated. Evidence for the prediction capacity is provided in the form of plots of actual vs predicted pKi values. The steric and electrostatic features of the CoMFA-derived model are presented as standard coefficient contour maps of steric and electrostatic fields.
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Affiliation(s)
- M Anzini
- Dipartimento Farmaco Chimico Tecnologico, Università di Siena, Italy
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31
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Botta M, Saladino R, Anzini M, Corelli F. Simplified Analogues of Acyclonucleosides. Synthesis of 6-[N-Alkyl-N-(4-hydroxybutyl)amino]pyrimidine Derivatives. ACTA ACUST UNITED AC 1994. [DOI: 10.1080/15257779408009479] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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32
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Anzini M, Cappelli A, Vomero S, Cagnotto A, Skorupska M. Synthesis and receptor binding studies of 2-functionalized 1,4-benzodiazepine derivatives as potential metaclazepam-like antianxiety agents. Farmaco 1993; 48:897-905. [PMID: 8104405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The synthesis of 7-chloro-2,3-dihydro-2-(2-methoxyethyl)-1-methyl-5-phenyl- 1H-1,4-benzodiazepine (2) is described. While the metaclazepam-like compound 2 showed an affinity for benzodiazepine receptor central type (CBZRs) comparable to that of metaclazepam (1a), its intermediates bearing the exocyclic double bond resulted more active.
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Affiliation(s)
- M Anzini
- Dipartimento Farmaco Chimico Tecnologico, Università Degli Studi di Siena, Italy
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33
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Anzini M, Cappelli A, Vomero S, Cagnotto A, Skorupska M. Synthesis of 2,10-diphenyl-2H-pyridazino[4,5-b]quinolin-1-one and 2,3-dihydro-9-phenyl-2-phenylamino-1H-pyrrolo[3,4-b]quinolin-1-one derivatives as peripheral-type benzodiazepine receptor ligands. J Heterocycl Chem 1992. [DOI: 10.1002/jhet.5570290513] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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34
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Anzini M, Cappelli A, Vomero S, Campiani G, Cagnotto A, Skorupska M. Synthesis and 5-HT receptors binding studies of some 3-substituted-2-(4-methyl-1-piperazinyl)-4-phenylquinolines. Farmaco 1991; 46:1435-47. [PMID: 1668253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The syntheses of some 3-substituted-2-(4-methyl-1-piperazinyl)-4-phenylquinolines are reported. The title compounds were tested for their potential activities on 5-HT receptor subtypes and 5-HT uptake site; compounds 4b-d showed micromolar affinity for 5-HT3 and 5-HT uptake site.
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Affiliation(s)
- M Anzini
- Dipartimento Farmaco Chimico Tecnologico-Università, Siena, Italy
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35
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Anzini M, Cappelli A, Vomero S. Synthesis of 6-(4-methyl-1-piperazinyl)-7H-indeno[2,1-c]-quinoline derivatives as potential 5-HT receptor ligands. J Heterocycl Chem 1991. [DOI: 10.1002/jhet.5570280727] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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36
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Campiani G, Nacci V, Corelli F, Anzini M. Polycondensed Heterocycles. VII. A Convenient Synthesis of Pyrrolo[1,2-a]quinoxaline Derivatives by Intramolecular Aromatic Nucleophilic Displacement. SYNTHETIC COMMUN 1991. [DOI: 10.1080/00397919108021054] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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37
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Anzini M, Cappelli A, Vomero S, Botta M, Cagnotto A. 5-HT and benzodiazepine receptor ligands. III. Synthesis and receptor affinities of 1,2,4-triazolo[4',3':1,6]pyridazino[4,5-b]quinoline and 2,3-dihydro-9-phenyl-1H-pyrrolo[3,4-b]quinoline-1-one derivatives. Farmaco 1990; 45:1169-79. [PMID: 1965122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The syntheses as well as 5-HT and Benzodiazepine receptor binding studies of some 1,2,4-Triazolo[4',3':1,6]piridazino[4,5-b]quinoline and 2,3-Dihydro-9-phenyl-1H-pyrrolo[3,4-b]quinoline-1-one derivatives are reported. While the triazole-containing heterocycles are devoid of any biological activity, 2-benzyl-2,3-dihydro-9-phenyl-1H-pyrrolo[3,4-b]quinoline-1-one shows some affinity for the central type of benzodiazepine receptors.
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Affiliation(s)
- M Anzini
- Dipartimento Farmaco Chimico Technologico, Università Banchi di Sotto, Siena, Italy
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Anzini M, Vomero S, Garofalo A, Cappelli A, Cagnotto A. Synthesis and 5HT-receptors affinity of some 4-phenylquinoline derivatives. Farmaco 1989; 44:555-63. [PMID: 2529861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The synthesis of a series of 4-phenylquinolines with substituents in 2,3 and 6-position of the quinoline nucleus is described. Serotoninergic activity towards 5HT1A, 5HT1B, 5HT2, 5HT1A + B receptors and the 5-HT-uptake site was also studied.
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Affiliation(s)
- M Anzini
- Dipartimento Farmaco Chimico Tecnologico, Università di Siena, Italy
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Nacci V, Garofalo A, Anzini M, Campiani G. Polycondensed heterocycles. III. Synthesis of 5,11-dioxo-1,2,3,1 1a-tetrahydro-5H,11H- and 5-oxo-2,3,11,1 1a-tetrahydro-1H,5H-pyrrolo[2,1-c][1,4]benzothiazepine. J Heterocycl Chem 1988. [DOI: 10.1002/jhet.5570250358] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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