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Pinnetti C, Cimini E, Mazzotta V, Matusali G, Vergori A, Mondi A, Rueca M, Batzella S, Tartaglia E, Bettini A, Notari S, Rubino M, Tempestilli M, Pareo C, Falasca L, Del Nonno F, Scarabello A, Camici M, Gagliardini R, Girardi E, Vaia F, Maggi F, Agrati C, Antinori A. Mpox as AIDS-defining event with a severe and protracted course: clinical, immunological, and virological implications. Lancet Infect Dis 2024; 24:e127-e135. [PMID: 37778364 DOI: 10.1016/s1473-3099(23)00482-6] [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] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 07/18/2023] [Accepted: 07/18/2023] [Indexed: 10/03/2023]
Abstract
A 59-year-old treatment-naive patient with advanced HIV infection presented with a severe and protracted course of mpox (formerly known as monkeypox) that did not respond to the current mpox treatment options. The patient worsened clinically, and developed new mucocutaneous lesions and necrotic evolution of pre-existing ones, along with multiple bilateral lung nodules and the appearance of a tracheal necrotic lesion. Although severe forms of mpox have been observed in people with severe immune system deficiency, including those with advanced HIV presentation, the immunological mechanisms underlying this observation have not yet been fully explained. To our knowledge, this is the first account of a necrotising mpox in a person living with HIV, with viral shedding for more than 11 months and a comprehensive immunological description. Moreover, we documented the virus' persistence by detecting mpox virus DNA from multiple sites and quantified anti-monkeypox virus IgA, IgM, IgG, and neutralising antibodies in serum samples. The severe HIV-driven immune depression and the presence of other co-infections might skew and impair immune responses, thus contributing to the persistence of monkeypox virus infection. Further investigations of immune responses to monkeypox virus infection in people with severe immunosuppression are required to improve management and prevention.
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Affiliation(s)
- Carmela Pinnetti
- Clinical and Research Infectious Diseases Department, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Eleonora Cimini
- Cellular Immunology and Pharmacology Laboratory, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Valentina Mazzotta
- Clinical and Research Infectious Diseases Department, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy.
| | - Giulia Matusali
- Laboratory of Virology, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Alessandra Vergori
- Clinical and Research Infectious Diseases Department, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Annalisa Mondi
- Clinical and Research Infectious Diseases Department, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Martina Rueca
- Laboratory of Virology, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Sandro Batzella
- Bronchopneumology and Interventional Pulmonology, San Camillo-Forlanini Hospital, Rome, Italy
| | - Eleonora Tartaglia
- Cellular Immunology and Pharmacology Laboratory, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Aurora Bettini
- Laboratory of Virology, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Stefania Notari
- Cellular Immunology and Pharmacology Laboratory, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Marika Rubino
- Cellular Immunology and Pharmacology Laboratory, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Massimo Tempestilli
- Cellular Immunology and Pharmacology Laboratory, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Carlo Pareo
- Respiratory Infectious Diseases Unit, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Laura Falasca
- Pathology Unit, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Franca Del Nonno
- Pathology Unit, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Alessandra Scarabello
- Clinical and Research Infectious Diseases Department, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Marta Camici
- Clinical and Research Infectious Diseases Department, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Roberta Gagliardini
- Clinical and Research Infectious Diseases Department, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Enrico Girardi
- Scientific Direction, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Francesco Vaia
- General Direction, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Fabrizio Maggi
- Laboratory of Virology, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Chiara Agrati
- Unit of Pathogen Specific Immunity, Department of Paediatric Haematology and Oncology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Andrea Antinori
- Clinical and Research Infectious Diseases Department, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
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Gualano G, Zace D, Mosti S, Mencarini P, Musso M, Libertone R, Cerva C, Goletti D, Rianda A, Del Nonno F, Falasca L, Palmieri F. Utility of Liver Biopsy in the Diagnosis and Management of Possible Drug-Induced Liver Injury in Patients Receiving Antituberculosis Therapy: A Retrospective Study. Infect Dis Rep 2023; 15:735-746. [PMID: 38131879 PMCID: PMC10742487 DOI: 10.3390/idr15060066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 11/17/2023] [Accepted: 11/22/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Drug-induced liver injury (DILI) secondary to ATT treatment (TB-DILI) is reported in 2-28% of patients. We present here a series of clinical cases of suspected DILI arising during antituberculosis treatment, studied with the aid of liver biopsy. METHODS this was a retrospective descriptive study including 10 tuberculosis patients who underwent liver biopsy for suspected TB-DILI at the "Lazzaro Spallanzani" Institute from 2017 to 2022. RESULTS Ten patients who underwent LB were extracted from the database and included in the retrospective study cohort. According to the clinical classification, eight patients had hepatocellular liver injury, one patient had cholestatic injury, and another had mixed-type injury. Histopathological diagnosis revealed liver damage due to DILI in 5/10 (50%) cases. In one case, liver biopsy showed necrotizing granulomatous hepatitis. CONCLUSIONS Severe and persistent elevation of hepatic transaminases, hepatic cholestasis despite discontinuation of therapy, and other suspected hepatic conditions are indications for liver biopsy, which remains a valuable tool in the evaluation of selected tuberculosis patients with suspected DILI for many reasons. However, the decision to perform a liver biopsy should be based on clinical judgment, considering the benefits and risks of the procedure.
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Affiliation(s)
- Gina Gualano
- Respiratory Infectious Diseases Unit, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (S.M.); (P.M.); (M.M.); (R.L.); (C.C.); (D.G.); (A.R.); (F.P.)
| | - Drieda Zace
- Clinical Infectious Diseases, Department of System Medicine, University of Rome Tor Vergata, 00133 Rome, Italy;
| | - Silvia Mosti
- Respiratory Infectious Diseases Unit, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (S.M.); (P.M.); (M.M.); (R.L.); (C.C.); (D.G.); (A.R.); (F.P.)
| | - Paola Mencarini
- Respiratory Infectious Diseases Unit, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (S.M.); (P.M.); (M.M.); (R.L.); (C.C.); (D.G.); (A.R.); (F.P.)
| | - Maria Musso
- Respiratory Infectious Diseases Unit, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (S.M.); (P.M.); (M.M.); (R.L.); (C.C.); (D.G.); (A.R.); (F.P.)
| | - Raffaella Libertone
- Respiratory Infectious Diseases Unit, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (S.M.); (P.M.); (M.M.); (R.L.); (C.C.); (D.G.); (A.R.); (F.P.)
| | - Carlotta Cerva
- Respiratory Infectious Diseases Unit, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (S.M.); (P.M.); (M.M.); (R.L.); (C.C.); (D.G.); (A.R.); (F.P.)
| | - Delia Goletti
- Respiratory Infectious Diseases Unit, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (S.M.); (P.M.); (M.M.); (R.L.); (C.C.); (D.G.); (A.R.); (F.P.)
| | - Alessia Rianda
- Respiratory Infectious Diseases Unit, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (S.M.); (P.M.); (M.M.); (R.L.); (C.C.); (D.G.); (A.R.); (F.P.)
| | - Franca Del Nonno
- Pathology Unit, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (F.D.N.); (L.F.)
| | - Laura Falasca
- Pathology Unit, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (F.D.N.); (L.F.)
| | - Fabrizio Palmieri
- Respiratory Infectious Diseases Unit, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (S.M.); (P.M.); (M.M.); (R.L.); (C.C.); (D.G.); (A.R.); (F.P.)
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3
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Muccioli S, Brillo V, Varanita T, Rossin F, Zaltron E, Velle A, Alessio G, Angi B, Severin F, Tosi A, D'Eletto M, Occhigrossi L, Falasca L, Checchetto V, Ciaccio R, Fascì A, Chieregato L, Rebelo AP, Giacomello M, Rosato A, Szabò I, Romualdi C, Piacentini M, Leanza L. Transglutaminase Type 2-MITF axis regulates phenotype switching in skin cutaneous melanoma. Cell Death Dis 2023; 14:704. [PMID: 37898636 PMCID: PMC10613311 DOI: 10.1038/s41419-023-06223-y] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/11/2023] [Accepted: 10/16/2023] [Indexed: 10/30/2023]
Abstract
Skin cutaneous melanoma (SKCM) is the deadliest form of skin cancer due to its high heterogeneity that drives tumor aggressiveness. Melanoma plasticity consists of two distinct phenotypic states that co-exist in the tumor niche, the proliferative and the invasive, respectively associated with a high and low expression of MITF, the master regulator of melanocyte lineage. However, despite efforts, melanoma research is still far from exhaustively dissecting this phenomenon. Here, we discovered a key function of Transglutaminase Type-2 (TG2) in regulating melanogenesis by modulating MITF transcription factor expression and its transcriptional activity. Importantly, we demonstrated that TG2 expression affects melanoma invasiveness, highlighting its positive value in SKCM. These results suggest that TG2 may have implications in the regulation of the phenotype switching by promoting melanoma differentiation and impairing its metastatic potential. Our findings offer potential perspectives to unravel melanoma vulnerabilities via tuning intra-tumor heterogeneity.
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Affiliation(s)
- Silvia Muccioli
- Department of Biology, University of Padua, Padua, Italy
- Laboratory of Translational Research, Azienda USL - IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | | | | | - Federica Rossin
- Department of Biology, University of Rome 'Tor Vergata', Rome, Italy
| | | | - Angelo Velle
- Department of Biology, University of Padua, Padua, Italy
| | | | - Beatrice Angi
- Department of Biology, University of Padua, Padua, Italy
| | | | - Anna Tosi
- Immunology and Molecular Oncology Diagnostics, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Manuela D'Eletto
- Department of Biology, University of Rome 'Tor Vergata', Rome, Italy
| | - Luca Occhigrossi
- Department of Biology, University of Rome 'Tor Vergata', Rome, Italy
| | - Laura Falasca
- National Institute for Infectious Diseases IRCCS "Lazzaro Spallanzani", Rome, Italy
| | | | | | - Amelia Fascì
- Department of Biology, University of Padua, Padua, Italy
| | | | | | | | - Antonio Rosato
- Immunology and Molecular Oncology Diagnostics, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
- Department of Surgery, Oncology and Gastroenterology (DiSCOG), University of Padua, Padua, Italy
| | - Ildikò Szabò
- Department of Biology, University of Padua, Padua, Italy
| | | | - Mauro Piacentini
- Department of Biology, University of Rome 'Tor Vergata', Rome, Italy
- National Institute for Infectious Diseases IRCCS "Lazzaro Spallanzani", Rome, Italy
| | - Luigi Leanza
- Department of Biology, University of Padua, Padua, Italy.
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Lécuyer D, Nardacci R, Tannous D, Gutierrez-Mateyron E, Deva Nathan A, Subra F, Di Primio C, Quaranta P, Petit V, Richetta C, Mostefa-Kara A, Del Nonno F, Falasca L, Marlin R, Maisonnasse P, Delahousse J, Pascaud J, Deprez E, Naigeon M, Chaput N, Paci A, Saada V, Ghez D, Mariette X, Costa M, Pistello M, Allouch A, Delelis O, Piacentini M, Le Grand R, Perfettini JL. The purinergic receptor P2X7 and the NLRP3 inflammasome are druggable host factors required for SARS-CoV-2 infection. Front Immunol 2023; 14:1270081. [PMID: 37920468 PMCID: PMC10619763 DOI: 10.3389/fimmu.2023.1270081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 10/04/2023] [Indexed: 11/04/2023] Open
Abstract
Purinergic receptors and NOD-like receptor protein 3 (NLRP3) inflammasome regulate inflammation and viral infection, but their effects on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection remain poorly understood. Here, we report that the purinergic receptor P2X7 and NLRP3 inflammasome are cellular host factors required for SARS-CoV-2 infection. Lung autopsies from patients with severe coronavirus disease 2019 (COVID-19) reveal that NLRP3 expression is increased in host cellular targets of SARS-CoV-2 including alveolar macrophages, type II pneumocytes and syncytia arising from the fusion of infected macrophages, thus suggesting a potential role of NLRP3 and associated signaling pathways to both inflammation and viral replication. In vitro studies demonstrate that NLRP3-dependent inflammasome activation is detected upon macrophage abortive infection. More importantly, a weak activation of NLRP3 inflammasome is also detected during the early steps of SARS-CoV-2 infection of epithelial cells and promotes the viral replication in these cells. Interestingly, the purinergic receptor P2X7, which is known to control NLRP3 inflammasome activation, also favors the replication of D614G and alpha SARS-CoV-2 variants. Altogether, our results reveal an unexpected relationship between the purinergic receptor P2X7, the NLRP3 inflammasome and the permissiveness to SARS-CoV-2 infection that offers novel opportunities for COVID-19 treatment.
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Affiliation(s)
- Déborah Lécuyer
- Université Paris-Saclay, Inserm UMR1030, Laboratory of Molecular Radiotherapy and Therapeutic Innovation, Villejuif, France
- Gustave Roussy Cancer Center, Villejuif, France
| | - Roberta Nardacci
- National Institute for Infectious Diseases "Lazzaro Spallanzani", Rome, Italy
- UniCamillus - Saint Camillus International University of Health and Medical Sciences, Rome, Italy
| | - Désirée Tannous
- Université Paris-Saclay, Inserm UMR1030, Laboratory of Molecular Radiotherapy and Therapeutic Innovation, Villejuif, France
- Gustave Roussy Cancer Center, Villejuif, France
- NH TherAguix SAS, Meylan, France
| | - Emie Gutierrez-Mateyron
- Université Paris-Saclay, Inserm UMR1030, Laboratory of Molecular Radiotherapy and Therapeutic Innovation, Villejuif, France
- Gustave Roussy Cancer Center, Villejuif, France
| | - Aurélia Deva Nathan
- Université Paris-Saclay, Inserm UMR1030, Laboratory of Molecular Radiotherapy and Therapeutic Innovation, Villejuif, France
- Gustave Roussy Cancer Center, Villejuif, France
| | - Frédéric Subra
- Université Paris-Saclay, ENS Paris-Saclay, CNRS UMR 8113, IDA FR3242, Laboratory of Biology and Applied Pharmacology (LBPA), Gif-sur-Yvette, France
| | - Cristina Di Primio
- Institute of Neuroscience, Italian National Research Council, Pisa, Italy
- Laboratory of Biology BIO@SNS, Scuola Normale Superiore, Pisa, Italy
| | - Paola Quaranta
- Institute of Neuroscience, Italian National Research Council, Pisa, Italy
- Retrovirus Center, Department of Translational Research, Universita of Pisa, Pisa, Italy
| | - Vanessa Petit
- Université Paris-Saclay, Inserm U1274, CEA, Genetic Stability, Stem Cells and Radiation, Fontenay-aux-Roses, France
| | - Clémence Richetta
- Université Paris-Saclay, ENS Paris-Saclay, CNRS UMR 8113, IDA FR3242, Laboratory of Biology and Applied Pharmacology (LBPA), Gif-sur-Yvette, France
| | - Ali Mostefa-Kara
- Université Paris-Saclay, Inserm UMR1030, Laboratory of Molecular Radiotherapy and Therapeutic Innovation, Villejuif, France
- Gustave Roussy Cancer Center, Villejuif, France
| | - Franca Del Nonno
- National Institute for Infectious Diseases "Lazzaro Spallanzani", Rome, Italy
| | - Laura Falasca
- National Institute for Infectious Diseases "Lazzaro Spallanzani", Rome, Italy
| | - Romain Marlin
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA- HB/IDMIT), Fontenay-aux-Roses, France
| | - Pauline Maisonnasse
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA- HB/IDMIT), Fontenay-aux-Roses, France
| | - Julia Delahousse
- Université Paris-Saclay, Inserm UMR1030, Laboratory of Molecular Radiotherapy and Therapeutic Innovation, Villejuif, France
- Gustave Roussy Cancer Center, Villejuif, France
| | - Juliette Pascaud
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA- HB/IDMIT), Fontenay-aux-Roses, France
- Assistance Publique, Hôpitaux de Paris (AP-HP), Hôpital Bicêtre, Le Kremlin Bicêtre, France
| | - Eric Deprez
- Université Paris-Saclay, ENS Paris-Saclay, CNRS UMR 8113, IDA FR3242, Laboratory of Biology and Applied Pharmacology (LBPA), Gif-sur-Yvette, France
| | - Marie Naigeon
- Gustave Roussy Cancer Center, Villejuif, France
- Université Paris-Saclay, Inserm, CNRS, Analyse Moléculaire, Modélisation et Imagerie de la Maladie Cancéreuse, Laboratoire d'Immunomonitoring en Oncologie, Villejuif, France
- Université Paris-Saclay, Faculté de Pharmacie, Chatenay-Malabry, France
| | - Nathalie Chaput
- Université Paris-Saclay, Inserm, CNRS, Analyse Moléculaire, Modélisation et Imagerie de la Maladie Cancéreuse, Laboratoire d'Immunomonitoring en Oncologie, Villejuif, France
- Université Paris-Saclay, Faculté de Pharmacie, Chatenay-Malabry, France
- Université Paris-Saclay, Gustave Roussy Cancer Center, CNRS, Stabilité Génétique et Oncogenèse, Villejuif, France
| | - Angelo Paci
- Université Paris-Saclay, Inserm UMR1030, Laboratory of Molecular Radiotherapy and Therapeutic Innovation, Villejuif, France
- Gustave Roussy Cancer Center, Villejuif, France
- Université Paris-Saclay, Faculté de Pharmacie, Chatenay-Malabry, France
- Department of Biology and Pathology, Gustave Roussy Cancer Center, Villejuif, France
| | - Véronique Saada
- Department of Biology and Pathology, Gustave Roussy Cancer Center, Villejuif, France
| | - David Ghez
- Université Paris-Saclay, Inserm UMR1030, Laboratory of Molecular Radiotherapy and Therapeutic Innovation, Villejuif, France
- Department of Hematology, Gustave Roussy Cancer Center, Villejuif, France
| | - Xavier Mariette
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA- HB/IDMIT), Fontenay-aux-Roses, France
- Assistance Publique, Hôpitaux de Paris (AP-HP), Hôpital Bicêtre, Le Kremlin Bicêtre, France
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin Bicêtre, France
| | - Mario Costa
- Institute of Neuroscience, Italian National Research Council, Pisa, Italy
- Laboratory of Biology BIO@SNS, Scuola Normale Superiore, Pisa, Italy
- Centro Pisano Ricerca e Implementazione Clinical Flash Radiotherapy "CPFR@CISUP", "S. Chiara" Hospital, Pisa, Italy
| | - Mauro Pistello
- Retrovirus Center, Department of Translational Research, Universita of Pisa, Pisa, Italy
- Virology Operative Unit, Pisa University Hospital, Pisa, Italy
| | - Awatef Allouch
- Université Paris-Saclay, Inserm UMR1030, Laboratory of Molecular Radiotherapy and Therapeutic Innovation, Villejuif, France
- Gustave Roussy Cancer Center, Villejuif, France
- NH TherAguix SAS, Meylan, France
| | - Olivier Delelis
- Université Paris-Saclay, ENS Paris-Saclay, CNRS UMR 8113, IDA FR3242, Laboratory of Biology and Applied Pharmacology (LBPA), Gif-sur-Yvette, France
| | - Mauro Piacentini
- National Institute for Infectious Diseases "Lazzaro Spallanzani", Rome, Italy
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
| | - Roger Le Grand
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA- HB/IDMIT), Fontenay-aux-Roses, France
| | - Jean-Luc Perfettini
- Université Paris-Saclay, Inserm UMR1030, Laboratory of Molecular Radiotherapy and Therapeutic Innovation, Villejuif, France
- Gustave Roussy Cancer Center, Villejuif, France
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5
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Butera A, Agostini M, Cassandri M, De Nicola F, Fanciulli M, D’Ambrosio L, Falasca L, Nardacci R, Wang L, Piacentini M, Knight RA, Jia W, Sun Q, Shi Y, Wang Y, Candi E, Melino G. ZFP750 affects the cutaneous barrier through regulating lipid metabolism. Sci Adv 2023; 9:eadg5423. [PMID: 37115925 PMCID: PMC10146900 DOI: 10.1126/sciadv.adg5423] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
An essential function of the epidermis is to provide a physical barrier that prevents the loss of water. Essential mediators of this barrier function include ceramides, cholesterol, and very long chain fatty acids, and their alteration causes human pathologies, including psoriasis and atopic dermatitis. A frameshift mutation in the human ZNF750 gene, which encodes a zinc finger transcription factor, has been shown to cause a seborrhea-like dermatitis. Here, we show that genetic deletion of the mouse homolog ZFP750 results in loss of epidermal barrier function, which is associated with a substantial reduction of ceramides, nonpolar lipids. The alteration of epidermal lipid homeostasis is directly linked to the transcriptional activity of ZFP750. ZFP750 directly and/or indirectly regulates the expression of crucial enzymes primarily involved in the biosynthesis of ceramides. Overall, our study identifies the transcription factor ZFP750 as a master regulator epidermal homeostasis through lipid biosynthesis and thus contributing to our understanding of the pathogenesis of several human skin diseases.
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Affiliation(s)
- Alessio Butera
- Department of Experimental Medicine, TOR, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Massimiliano Agostini
- Department of Experimental Medicine, TOR, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Matteo Cassandri
- Department of Oncohematology, Bambino Gesù Children’s Hospital, 00146 Rome, Italy
| | - Francesca De Nicola
- Department of Research, Advanced Diagnostics, and Technological Innovation, Translational Research Area, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Maurizio Fanciulli
- Department of Research, Advanced Diagnostics, and Technological Innovation, Translational Research Area, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Lorenzo D’Ambrosio
- Department of Research, Advanced Diagnostics, and Technological Innovation, Translational Research Area, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Laura Falasca
- Laboratory of Electron Microscopy, National Institute for Infectious Diseases “L. Spallanzani,” IRCCS, Rome Italy
| | - Roberta Nardacci
- Laboratory of Electron Microscopy, National Institute for Infectious Diseases “L. Spallanzani,” IRCCS, Rome Italy
- Departmental Faculty of Medicine and Surgery, Saint Camillus International University of Health Sciences (UniCamillus), Rome, Italy
| | - Lu Wang
- University of Hawaii Cancer Center, Honolulu, HI 96813, USA
| | - Mauro Piacentini
- Laboratory of Electron Microscopy, National Institute for Infectious Diseases “L. Spallanzani,” IRCCS, Rome Italy
| | - Richard A. Knight
- Department of Experimental Medicine, TOR, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Wei Jia
- University of Hawaii Cancer Center, Honolulu, HI 96813, USA
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Qiang Sun
- Laboratory of Cell Engineering, Institute of Biotechnology, Research Unit of Cell Death Mechanism, 2021RU008, Chinese Academy of Medical Science, 20 Dongda Street, Beijing, 100071, China
| | - Yufang Shi
- The Third Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Soochow University, Suzhou 215123, China
| | - Ying Wang
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences/Shanghai Jiao Tong University School of Medicine, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Eleonora Candi
- Department of Experimental Medicine, TOR, University of Rome “Tor Vergata”, 00133 Rome, Italy
- IDI-IRCCS, via Monti di Creta, 106, 00166 Rome, Italy
| | - Gerry Melino
- Department of Experimental Medicine, TOR, University of Rome “Tor Vergata”, 00133 Rome, Italy
- Corresponding author.
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6
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Mazzotta V, Scorzolini L, Falasca L, Lionetti R, Aguglia C, Kontogiannis D, Colombo D, Colavita F, De Palo MG, Carletti F, Mondi A, Pinnetti C, Maffongelli G, Garbuglia AR, Baldini F, Corpolongo A, Maggi F, D'Offizi G, Girardi E, Vaia F, Nicastri E, Del Nonno F, Antinori A. Lymphofollicular lesions associated with monkeypox (Mpox) virus proctitis. Int J Infect Dis 2023; 130:48-51. [PMID: 36858309 PMCID: PMC10013572 DOI: 10.1016/j.ijid.2023.02.021] [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: 11/22/2022] [Revised: 02/21/2023] [Accepted: 02/21/2023] [Indexed: 03/02/2023] Open
Abstract
In the recent 2022 monkeypox (Mpox) global outbreak, cases have been mostly documented among men who have sex with men. Proctitis was reported in almost 14% of cases. In this study, four Mpox-confirmed cases requiring hospitalizations for severe proctitis were characterized by clinical, virological, microbiological, endoscopic, and histological aspects. The study showed the presence of lymphofollicular lesions associated with Mpox virus rectal infection for the first time.
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Affiliation(s)
- Valentina Mazzotta
- Clinical and Research Infectious Department, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Laura Scorzolini
- Clinical and Research Infectious Department, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Laura Falasca
- Laboratory of Electron Microscopy, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy.
| | - Raffaella Lionetti
- Infectious Diseases Hepatology Department, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Camilla Aguglia
- Clinical and Research Infectious Department, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Dimitra Kontogiannis
- Clinical and Research Infectious Department, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Daniele Colombo
- Pathology Unit, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Roma, Italy
| | - Francesca Colavita
- Laboratory of Virology, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Maria Grazia De Palo
- Infectious Diseases Hepatology Department, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Fabrizio Carletti
- Laboratory of Virology, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Annalisa Mondi
- Clinical and Research Infectious Department, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Carmela Pinnetti
- Clinical and Research Infectious Department, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Gaetano Maffongelli
- Clinical and Research Infectious Department, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Anna Rosa Garbuglia
- Laboratory of Virology, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Francesco Baldini
- Clinical and Research Infectious Department, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Angela Corpolongo
- Clinical and Research Infectious Department, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Fabrizio Maggi
- Laboratory of Virology, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Gianpiero D'Offizi
- Infectious Diseases Hepatology Department, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Enrico Girardi
- Scientific Direction, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Francesco Vaia
- General Direction, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Emanuele Nicastri
- Clinical and Research Infectious Department, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Franca Del Nonno
- Pathology Unit, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Roma, Italy
| | - Andrea Antinori
- Clinical and Research Infectious Department, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
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7
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Colombo D, Del Nonno F, Marchioni L, Lalle E, Gallì P, Vaia F, Falasca L. Autopsies Revealed Pathological Features of COVID-19 in Unvaccinated vs. Vaccinated Patients. Biomedicines 2023; 11:biomedicines11020551. [PMID: 36831087 PMCID: PMC9953314 DOI: 10.3390/biomedicines11020551] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 02/10/2023] [Accepted: 02/11/2023] [Indexed: 02/16/2023] Open
Abstract
Background: In Italy, by the end of 2021, a new pandemic wave led to increased hospitalizations and death, even in some vaccinated people. We aimed to investigate the death of COVID-19-vaccinated patients who acquired infection and developed severe disease, and to assess differences with fatal COVID-19 in unvaccinated subjects by studying the pathological events triggered by SARS-CoV-2. Methods: Detailed autoptic examination was performed on five fully vaccinated compared to five unvaccinated patients. Histopathological analysis focused on the lung and heart, the two major affected organs. Results: COVID-19 caused, or contributed to death, in all the unvaccinated cases. By contrast, in vaccinated group, pre-existing pathologies played a major role, and death was not COVID-19-related in four out of five patients. These patients did not show the histological features of SARS-CoV-2 lung damage. Diffuse inflammatory macrophages infiltration recently emerged as the main feature of COVID-19 cardiac injury. Interestingly, the most striking difference between the two groups was the absence of increased macrophage infiltration in the heart of vaccinated patients. Conclusions: Results of this study confirm the efficacy of anti-SARS-CoV-2 vaccination in protecting organs from injury and support the need to maintain an adequate immune response by booster dose administration.
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Affiliation(s)
- Daniele Colombo
- Pathology Unit, National Institute for Infectious Diseases “Lazzaro Spallanzani”-IRCCS, 00149 Rome, Italy
| | - Franca Del Nonno
- Pathology Unit, National Institute for Infectious Diseases “Lazzaro Spallanzani”-IRCCS, 00149 Rome, Italy
| | - Luisa Marchioni
- Clinical Department, National Institute for Infectious Diseases “Lazzaro Spallanzani”-IRCCS, 00149 Rome, Italy
| | - Eleonora Lalle
- Laboratory of Virology, National Institute for Infectious Diseases “Lazzaro Spallanzani”-IRCCS, 00149 Rome, Italy
| | - Paola Gallì
- Health Direction, National Institute for Infectious Diseases “Lazzaro Spallanzani”-IRCCS, 00149 Rome, Italy
| | - Francesco Vaia
- Health Direction, National Institute for Infectious Diseases “Lazzaro Spallanzani”-IRCCS, 00149 Rome, Italy
| | - Laura Falasca
- Laboratory of Electron Microscopy, National Institute for Infectious Diseases “Lazzaro Spallanzani”-IRCCS, 00149 Rome, Italy
- Correspondence:
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8
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Alonzi T, Aiello A, Repele F, Falasca L, Francalancia M, Garbuglia AR, Delogu G, Nicastri E, Piacentini M, Goletti D. Cysteamine exerts in vitro antiviral activity against the SARS-CoV-2 Delta and Omicron variants. Cell Death Dis 2022; 8:288. [PMID: 35705564 PMCID: PMC9199336 DOI: 10.1038/s41420-022-01080-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/27/2022] [Accepted: 06/01/2022] [Indexed: 11/28/2022]
Abstract
The novel SARS-CoV-2 variants of concern (VOC) represent a considerable global alarm because their mutations are known to affect transmissibility and cause immune escape. While preventing severe disease and deaths, the available vaccines do not avoid infection; therefore, COVID-19 disease management still requires effective therapies. We have recently reported that the aminothiol cysteamine, a drug already applied to humans, exerts direct antiviral activity against SARS-CoV-2 and has in vitro immunomodulatory effect. To evaluate whether this compound exerts antiviral effects also against SARS-CoV-2 variants, we performed different infected cell-based assays using Wild type, Delta, or Omicron VOC. We found that cysteamine significantly reduces the cytopathic effect induced by SARS-CoV-2 Wild type strain and Delta variant in Vero E6 cells. On the other hand, cysteamine had no effects on the survival of cells infected with the Omicron variant, due to the lack of cytotoxicity on Vero E6 cells, at least when infected at MOI = 0.001 for 72 h. Moreover, cysteamine significantly reduced the production of Wild type, Delta, and Omicron variants as measured by the virus released in the culture media (Vero E6 and Calu-3 cells) and by transmission electron microscopy analysis (Vero E6 cells). Notably, cysteamine is more effective in inhibiting the Omicron rather than Delta or Wild type viruses, with an 80% inhibition of Omicron production compared to 40% of Wild type and Delta variant. Overall, our findings demonstrate that cysteamine exerts direct antiviral actions against SARS-CoV-2 Delta and Omicron variants, in addition to the Wild type virus. Our data further demonstrate that cysteamine is a good candidate as repurposing drug for the treatment of SARS-CoV-2 infection for the present and, likely, the future VOC and, therefore, it would be important to investigate its clinical relevance in randomized clinical trials.
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Affiliation(s)
- Tonino Alonzi
- National Institute for Infectious Diseases "L. Spallanzani"-IRCCS, Rome, Italy
| | - Alessandra Aiello
- National Institute for Infectious Diseases "L. Spallanzani"-IRCCS, Rome, Italy
| | - Federica Repele
- National Institute for Infectious Diseases "L. Spallanzani"-IRCCS, Rome, Italy
| | - Laura Falasca
- National Institute for Infectious Diseases "L. Spallanzani"-IRCCS, Rome, Italy
| | | | - Anna Rosa Garbuglia
- National Institute for Infectious Diseases "L. Spallanzani"-IRCCS, Rome, Italy
| | - Giovanni Delogu
- Institute of Microbiology, Università Cattolica del Sacro Cuore - Fondazione Policlinico Gemelli, Rome, Italy.,Mater Olbia Hospital, Olbia, Italy
| | - Emanuele Nicastri
- National Institute for Infectious Diseases "L. Spallanzani"-IRCCS, Rome, Italy
| | - Mauro Piacentini
- National Institute for Infectious Diseases "L. Spallanzani"-IRCCS, Rome, Italy. .,Department of Biology, University of Rome "Tor Vergata", Rome, Italy.
| | - Delia Goletti
- National Institute for Infectious Diseases "L. Spallanzani"-IRCCS, Rome, Italy
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9
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La Manna MP, Orlando V, Badami GD, Tamburini B, Azgomi MS, Presti EL, Del Nonno F, Petrone L, Belmonte B, Falasca L, Carlo PD, Dieli F, Goletti D, Caccamo N. Platelets accumulate in lung lesions of tuberculosis patients and inhibit T-cell responses and Mycobacterium tuberculosis replication in macrophages. Eur J Immunol 2022; 52:784-799. [PMID: 35338775 PMCID: PMC9325462 DOI: 10.1002/eji.202149549] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 12/24/2021] [Accepted: 03/23/2022] [Indexed: 12/05/2022]
Abstract
Platelets regulate human inflammatory responses that lead to disease. However, the role of platelets in tuberculosis (TB) pathogenesis is still unclear. Here, we show that patients with active TB have a high number of platelets in peripheral blood and a low number of lymphocytes leading to a high platelets to lymphocytes ratio (PL ratio). Moreover, the serum concentration of different mediators promoting platelet differentiation or associated with platelet activation is increased in active TB. Immunohistochemistry analysis shows that platelets localise around the lung granuloma lesions in close contact with T lymphocytes and macrophages. Transcriptomic analysis of caseous tissue of human pulmonary TB granulomas, followed by Gene Ontology analysis, shows that 53 platelet activation‐associated genes are highly expressed compared to the normal lung tissue. In vitro activated platelets (or their supernatants) inhibit BCG‐induced T‐ lymphocyte proliferation and IFN‐γ production. Likewise, platelets inhibit the growth of intracellular macrophages of Mycobacterium (M.) tuberculosis. Soluble factors released by activated platelets mediate both immunological and M. tuberculosis replication activities. Furthermore, proteomic and neutralisation studies (by mAbs) identify TGF‐β and PF4 as the factors responsible for inhibiting T‐cell response and enhancing the mycobactericidal activity of macrophages, respectively. Altogether these results highlight the importance of platelets in TB pathogenesis.
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Affiliation(s)
- Marco P La Manna
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR).,Department of Biomedicine, Neurosciences and Advanced Diagnostic (Bi.N.D.), University of Palermo, Palermo, 90127, Italy
| | - Valentina Orlando
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR).,Department of Biomedicine, Neurosciences and Advanced Diagnostic (Bi.N.D.), University of Palermo, Palermo, 90127, Italy
| | - Giusto D Badami
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR).,Department of Biomedicine, Neurosciences and Advanced Diagnostic (Bi.N.D.), University of Palermo, Palermo, 90127, Italy
| | - Bartolo Tamburini
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR).,Department of Biomedicine, Neurosciences and Advanced Diagnostic (Bi.N.D.), University of Palermo, Palermo, 90127, Italy
| | - Mojtaba Shekarkar Azgomi
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR).,Department of Biomedicine, Neurosciences and Advanced Diagnostic (Bi.N.D.), University of Palermo, Palermo, 90127, Italy
| | - Elena Lo Presti
- Institute for Biomedical Research and Innovation, National Research Council, Palermo, Italy
| | - Franca Del Nonno
- Pathology Unit, National Institute for Infectious Diseases L. Spallanzani-IRCCS, Rome, Italy
| | - Linda Petrone
- Translational research Unit, National Institute for Infectious Diseases L. Spallanzani-IRCCS, Rome, Italy
| | - Beatrice Belmonte
- Tumor Immunology Unit, Department of Health Science, Human Pathology Section, University of Palermo School of Medicine, Palermo, Italy
| | - Laura Falasca
- Pathology Unit, National Institute for Infectious Diseases L. Spallanzani-IRCCS, Rome, Italy
| | - Paola Di Carlo
- Department of Sciences for Health Promotion and Mother-Child Care "G. D'Alessandro", University of Palermo, Palermo, Italy
| | - Francesco Dieli
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR).,Department of Biomedicine, Neurosciences and Advanced Diagnostic (Bi.N.D.), University of Palermo, Palermo, 90127, Italy
| | - Delia Goletti
- Translational research Unit, National Institute for Infectious Diseases L. Spallanzani-IRCCS, Rome, Italy
| | - Nadia Caccamo
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR).,Department of Biomedicine, Neurosciences and Advanced Diagnostic (Bi.N.D.), University of Palermo, Palermo, 90127, Italy
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10
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Colombo D, Albore M, Del Nonno F, Bolino G, D'Ambrosio M, Salvi A, Cecannecchia C, Falasca L. Fatal fulminant HSV-2 myocarditis: A complicated presentation. Int J Infect Dis 2022; 114:124-127. [PMID: 34718158 DOI: 10.1016/j.ijid.2021.10.046] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/18/2021] [Accepted: 10/19/2021] [Indexed: 11/26/2022] Open
Abstract
Herpes simplex virus type 2 (HSV-2) infection is the leading cause of genital lesions. Infrequently HSV-2 primary infection can spread and involve other tissue and organs, however in immunocompetent individuals extra-genital complications are rare findings. In this report we present a fatal case of fulminant myocarditis and terminal liver involvement, caused by HSV-2 infection, with a unique presentation. Diagnosis was made only post-mortem.
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Affiliation(s)
- Daniele Colombo
- Department of Pathology, National Institute for Infectious Diseases INMI "Lazzaro Spallanzani", IRCCS, Rome, Italy.
| | - Marco Albore
- Department of Anatomy, Histology, Forensic Medicine and Orthopedics, "Sapienza" University of Rome, Rome, Italy
| | - Franca Del Nonno
- Department of Pathology, National Institute for Infectious Diseases INMI "Lazzaro Spallanzani", IRCCS, Rome, Italy
| | - Giorgio Bolino
- Department of Anatomy, Histology, Forensic Medicine and Orthopedics, "Sapienza" University of Rome, Rome, Italy
| | - Mario D'Ambrosio
- Department of Anesthesiology and Critical Care, "San Giovanni Addolorata" Hospital, Rome, Italy
| | - Alessandra Salvi
- Department of Anesthesiology and Critical Care, "San Giovanni Addolorata" Hospital, Rome, Italy
| | - Camilla Cecannecchia
- Department of Anatomy, Histology, Forensic Medicine and Orthopedics, "Sapienza" University of Rome, Rome, Italy
| | - Laura Falasca
- Lab of Electron Microscopy, National Institute for Infectious Diseases INMI "Lazzaro Spallanzani", IRCCS, Rome, Italy
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11
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Matusali G, Trionfetti F, Bordoni V, Nardacci R, Falasca L, Colombo D, Terri M, Montaldo C, Castilletti C, Mariotti D, Del Nonno F, Capobianchi MR, Agrati C, Tripodi M, Strippoli R. Pleural Mesothelial Cells Modulate the Inflammatory/Profibrotic Response During SARS-CoV-2 Infection. Front Mol Biosci 2021; 8:752616. [PMID: 34901152 PMCID: PMC8662383 DOI: 10.3389/fmolb.2021.752616] [Citation(s) in RCA: 6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 11/11/2021] [Indexed: 12/29/2022] Open
Abstract
Although lung fibrosis has a major impact in COVID-19 disease, its pathogenesis is incompletely understood. In particular, no direct evidence of pleura implication in COVID-19-related fibrotic damage has been reported so far. In this study, the expression of epithelial cytokeratins and Wilms tumor 1 (WT1), specific markers of mesothelial cells (MCs), was analyzed in COVID-19 and unrelated pleura autoptic samples. SARS-CoV-2 replication was analyzed by RT-PCR and confocal microscopy in MeT5A, a pleura MC line. SARS-CoV-2 receptors were analyzed by RT-PCR and western blot. Inflammatory cytokines from the supernatants of SARS-CoV-2-infected MeT5A cells were analysed by Luminex and ELLA assays. Immunohistochemistry of COVID-19 pleura patients highlighted disruption of pleura monolayer and fibrosis of the sub-mesothelial stroma, with the presence of MCs with fibroblastoid morphology in the sub-mesothelial stroma, but no evidence of direct infection in vivo. Interestingly, we found evidence of ACE2 expression in MCs from pleura of COVID-19 patients. In vitro analysis shown that MeT5A cells expressed ACE2, TMPRSS2, ADAM17 and NRP1, plasma membrane receptors implicated in SARS-CoV-2 cell entry and infectivity. Moreover, MeT5A cells sustained SARS-CoV-2 replication and productive infection. Infected MeT5A cells produced interferons, inflammatory cytokines and metalloproteases. Overall, our data highlight the potential role of pleura MCs as promoters of the fibrotic reaction and regulators of the immune response upon SARS-CoV-2 infection.
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Affiliation(s)
- Giulia Matusali
- Laboratory of Virology, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Flavia Trionfetti
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy.,Gene Expression Laboratory, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Veronica Bordoni
- Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases "L. Spallanzani" IRCCS, Rome, Italy
| | - Roberta Nardacci
- Laboratory of Electron Microscopy, National Institute for Infectious Diseases "Lazzaro Spallanzani", IRCCS, Rome, Italy.,UniCamillus-Saint Camillus International University of Health and Medical Sciences, Rome, Italy
| | - Laura Falasca
- Laboratory of Electron Microscopy, National Institute for Infectious Diseases "Lazzaro Spallanzani", IRCCS, Rome, Italy
| | - Daniele Colombo
- Laboratory of Electron Microscopy, National Institute for Infectious Diseases "Lazzaro Spallanzani", IRCCS, Rome, Italy
| | - Michela Terri
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy.,Gene Expression Laboratory, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Claudia Montaldo
- Gene Expression Laboratory, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Concetta Castilletti
- Laboratory of Virology, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Davide Mariotti
- Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases "L. Spallanzani" IRCCS, Rome, Italy
| | - Franca Del Nonno
- Laboratory of Electron Microscopy, National Institute for Infectious Diseases "Lazzaro Spallanzani", IRCCS, Rome, Italy
| | - Maria Rosaria Capobianchi
- Laboratory of Virology, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Chiara Agrati
- Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases "L. Spallanzani" IRCCS, Rome, Italy
| | - Marco Tripodi
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy.,Gene Expression Laboratory, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - Raffaele Strippoli
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy.,Gene Expression Laboratory, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
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12
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Colombo D, Del Nonno F, Nardacci R, Falasca L. May macroglossia in COVID-19 be related not only to angioedema? J Infect Public Health 2021; 15:112-115. [PMID: 34764043 PMCID: PMC8559420 DOI: 10.1016/j.jiph.2021.10.026] [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: 08/06/2021] [Revised: 10/20/2021] [Accepted: 10/27/2021] [Indexed: 11/23/2022] Open
Abstract
SARS-CoV-2 infection can lead to a variety of clinical manifestations. The occurrence of tongue swelling has recently reported in severe cases of COVID-19, and angioedema has suggested as the causative mechanism. Several factors, such as genetic predisposing factor and angiotensin-converting enzyme inhibitors (ACEI) therapies, have proposed to induce angioedema, especially as concerns patients requiring ICU treatments. Nevertheless, the question is still debated and other causes not yet recognized should be considered. Here we present a case of macroglossia occurred in a patient deceased for COVID-19 disease, who had no family history of angioedema and did not receive ACEI as antihypertensive drug. Histological and immune-histochemical analysis revealed tongue muscle atrophy with infiltrating macrophages suggesting repair mechanisms, as seen in nerve injury recovery. These new pathological findings may open new fields of study on the pathogenesis of SARS-CoV-2.
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Affiliation(s)
- Daniele Colombo
- Pathology Unit, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Franca Del Nonno
- Pathology Unit, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Roberta Nardacci
- Laboratory of Electron Microscopy, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Laura Falasca
- Laboratory of Electron Microscopy, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy.
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13
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Del Nonno F, Nardacci R, Colombo D, Visco-Comandini U, Cicalini S, Antinori A, Marchioni L, D’Offizi G, Piacentini M, Falasca L. Hepatic Failure in COVID-19: Is Iron Overload the Dangerous Trigger? Cells 2021; 10:cells10051103. [PMID: 34064487 PMCID: PMC8147922 DOI: 10.3390/cells10051103] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 04/30/2021] [Accepted: 05/03/2021] [Indexed: 02/07/2023] Open
Abstract
Liver injury in COVID-19 patients has progressively emerged, even in those without a history of liver disease, yet the mechanism of liver pathogenicity is still controversial. COVID-19 is frequently associated with increased serum ferritin levels, and hyperferritinemia was shown to correlate with illness severity. The liver is the major site for iron storage, and conditions of iron overload have been established to have a pathogenic role in development of liver diseases. We presented here six patients who developed severe COVID-19, with biochemical evidence of liver failure. Three cases were survived patients, who underwent liver biopsy; the other three were deceased patients, who were autopsied. None of the patients suffered underlying liver pathologies. Histopathological and ultrastructural analyses were performed. The most striking finding we demonstrated in all patients was iron accumulation into hepatocytes, associated with degenerative changes. Abundant ferritin particles were found enclosed in siderosomes, and large aggregates of hemosiderin were found, often in close contact with damaged mitochondria. Iron-caused oxidative stress may be responsible for mitochondria metabolic dysfunction. In agreement with this, association between mitochondria and lipid droplets was also found. Overall, our data suggest that hepatic iron overload could be the pathogenic trigger of liver injury associated to COVID-19.
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Affiliation(s)
- Franca Del Nonno
- Pathology Unit, National Institute for Infectious Diseases “Lazzaro Spallanzani”-IRCCS, 00149 Rome, Italy; (F.D.N.); (D.C.)
| | - Roberta Nardacci
- Laboratory of Electron Microscopy, National Institute for Infectious Diseases “Lazzaro Spallanzani”-IRCCS, 00149 Rome, Italy; (R.N.); (M.P.)
| | - Daniele Colombo
- Pathology Unit, National Institute for Infectious Diseases “Lazzaro Spallanzani”-IRCCS, 00149 Rome, Italy; (F.D.N.); (D.C.)
| | | | - Stefania Cicalini
- HIV/AIDS Department, National Institute for Infectious Diseases “Lazzaro Spallanzani”-IRCCS, 00149 Rome, Italy; (S.C.); (A.A.)
| | - Andrea Antinori
- HIV/AIDS Department, National Institute for Infectious Diseases “Lazzaro Spallanzani”-IRCCS, 00149 Rome, Italy; (S.C.); (A.A.)
| | - Luisa Marchioni
- Clinical Department, National Institute for Infectious Diseases “Lazzaro Spallanzani”-IRCCS, 00149 Rome, Italy;
| | - Gianpiero D’Offizi
- Hepatology Unit “Lazzaoro Spallanzani”-IRCCS, 00149 Rome, Italy; (U.V.-C.); (G.D.)
| | - Mauro Piacentini
- Laboratory of Electron Microscopy, National Institute for Infectious Diseases “Lazzaro Spallanzani”-IRCCS, 00149 Rome, Italy; (R.N.); (M.P.)
- Department of Biology, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Laura Falasca
- Laboratory of Electron Microscopy, National Institute for Infectious Diseases “Lazzaro Spallanzani”-IRCCS, 00149 Rome, Italy; (R.N.); (M.P.)
- Correspondence:
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14
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Occhigrossi L, Rossin F, D'Eletto M, Farrace MG, Ciccosanti F, Petrone L, Sacchi A, Nardacci R, Falasca L, Del Nonno F, Palucci I, Smirnov E, Barlev N, Agrati C, Goletti D, Delogu G, Fimia GM, Piacentini M. Transglutaminase 2 Regulates Innate Immunity by Modulating the STING/TBK1/IRF3 Axis. J Immunol 2021; 206:2420-2429. [PMID: 33941660 DOI: 10.4049/jimmunol.2001122] [Citation(s) in RCA: 6] [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: 10/02/2020] [Accepted: 03/16/2021] [Indexed: 12/17/2022]
Abstract
We have recently shown that type 2 transglutaminase (TG2) plays a key role in the host's inflammatory response during bacterial infections. In this study, we investigated whether the enzyme is involved in the regulation of the STING pathway, which is the main signaling activated in the presence of both self- and pathogen DNA in the cytoplasm, leading to type I IFN (IFN I) production. In this study, we demonstrated that TG2 negatively regulates STING signaling by impairing IRF3 phosphorylation in bone marrow-derived macrophages, isolated from wild-type and TG2 knockout mice. In the absence of TG2, we found an increase in the IFN-β production and in the downstream JAK/STAT pathway activation. Interestingly, proteomic analysis revealed that TG2 interacts with TBK1, affecting its interactome composition. Indeed, TG2 ablation facilitates the TBK1-IRF3 interaction, thus indicating that the enzyme plays a negative regulatory effect on IRF3 recruitment in the STING/TBK1 complex. In keeping with these findings, we observed an increase in the IFNβ production in bronchoalveolar lavage fluids from COVID-19-positive dead patients paralleled by a dramatic decrease of the TG2 expression in the lung pneumocytes. Taken together, these results suggest that TG2 plays a negative regulation on the IFN-β production associated with the innate immunity response to the cytosolic presence of both self- and pathogen DNA.
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Affiliation(s)
- Luca Occhigrossi
- Department of Biology, University of Rome "Tor Vergata," Rome, Italy
| | - Federica Rossin
- Department of Biology, University of Rome "Tor Vergata," Rome, Italy
| | - Manuela D'Eletto
- Department of Biology, University of Rome "Tor Vergata," Rome, Italy
| | | | - Fabiola Ciccosanti
- National Institute for Infectious Diseases IRCCS "L. Spallanzani," Rome, Italy
| | - Linda Petrone
- National Institute for Infectious Diseases IRCCS "L. Spallanzani," Rome, Italy
| | - Alessandra Sacchi
- National Institute for Infectious Diseases IRCCS "L. Spallanzani," Rome, Italy
| | - Roberta Nardacci
- National Institute for Infectious Diseases IRCCS "L. Spallanzani," Rome, Italy
| | - Laura Falasca
- National Institute for Infectious Diseases IRCCS "L. Spallanzani," Rome, Italy
| | - Franca Del Nonno
- National Institute for Infectious Diseases IRCCS "L. Spallanzani," Rome, Italy
| | - Ivana Palucci
- Institute of Microbiology, Università Cattolica del Sacro Cuore - Fondazione Policlinico Gemelli, Rome, Italy
| | | | - Nick Barlev
- Institute of Cytology, Saint Petersburg, Russia
| | - Chiara Agrati
- National Institute for Infectious Diseases IRCCS "L. Spallanzani," Rome, Italy
| | - Delia Goletti
- National Institute for Infectious Diseases IRCCS "L. Spallanzani," Rome, Italy
| | - Giovanni Delogu
- Institute of Microbiology, Università Cattolica del Sacro Cuore - Fondazione Policlinico Gemelli, Rome, Italy
| | - Gian Maria Fimia
- National Institute for Infectious Diseases IRCCS "L. Spallanzani," Rome, Italy.,Department of Molecular Medicine, University of Rome "La Sapienza," Rome, Italy
| | - Mauro Piacentini
- National Institute for Infectious Diseases IRCCS "L. Spallanzani," Rome, Italy .,Institute of Cytology, Saint Petersburg, Russia
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15
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Mencarini P, Scarabello A, Del Nonno F, Lalle E, Falasca L, Gualano G, Nardacci R, Mosti S, Musso M, Libertone R, Di Bari V, Rosati S, Colombo D, Castilletti C, Palmieri F. Dermatological manifestations during COVID-19 and histological picture: Description of two clinical cases. J Dermatol 2021; 48:651-656. [PMID: 33624293 PMCID: PMC8013512 DOI: 10.1111/1346-8138.15714] [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: 08/12/2020] [Revised: 11/02/2020] [Accepted: 11/05/2020] [Indexed: 01/08/2023]
Abstract
It is not yet entirely clear what is the relevance of skin symptoms and what clinical implications are related to their appearance in COVID-19 patients. We describe two cases of COVID-19-associated pneumonia, which presented skin manifestations in advanced stage of illness, when nasopharyngeal swabs became negative for SARS-CoV-2. The first case presented erythematous, maculopapular lesions; the second developed petechial, vesicular and blood-encrusted lesions on the limbs. Histopathology documented perivascular lymphocytic infiltrates, with prevalent CD4+ T-cells in both patients. The research of SARS-CoV-2 in tissues with real time RT-PCR was negative. Basal keratinocytes displayed C4d deposits in one case, who developed laboratory signs indicative of a procoagulative condition at the same time as the skin rash. Skin manifestations during SARS-CoV-2 infection seem to be clinically relevant and further studies are necessary to assess if they are linked to systemic complications, lack of viral clearance or cascades of immune responses induced by the virus, even in patients affected by mild pneumonia.
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Affiliation(s)
- Paola Mencarini
- Respiratory Infectious Diseases Unit, National Institute for Infectious Diseases "L. Spallanzani" IRCCS, Rome, Italy
| | - Alessandra Scarabello
- Dermatology Consultation Service, National Institute for Infectious Diseases "L. Spallanzani" IRCCS, Rome, Italy
| | - Franca Del Nonno
- Pathology Unit, National Institute for Infectious Diseases "L. Spallanzani" IRCCS, Rome, Italy
| | - Eleonora Lalle
- Virology Unit, National Institute for Infectious Diseases "L. Spallanzani" IRCCS, Rome, Italy
| | - Laura Falasca
- Laboratory of Electron Microscopy, National Institute for Infectious Diseases "L. Spallanzani", IRCCS, Rome, Italy
| | - Gina Gualano
- Respiratory Infectious Diseases Unit, National Institute for Infectious Diseases "L. Spallanzani" IRCCS, Rome, Italy
| | - Roberta Nardacci
- Laboratory of Electron Microscopy, National Institute for Infectious Diseases "L. Spallanzani", IRCCS, Rome, Italy
| | - Silvia Mosti
- Respiratory Infectious Diseases Unit, National Institute for Infectious Diseases "L. Spallanzani" IRCCS, Rome, Italy
| | - Maria Musso
- Respiratory Infectious Diseases Unit, National Institute for Infectious Diseases "L. Spallanzani" IRCCS, Rome, Italy
| | - Raffaella Libertone
- Respiratory Infectious Diseases Unit, National Institute for Infectious Diseases "L. Spallanzani" IRCCS, Rome, Italy
| | - Virginia Di Bari
- Respiratory Infectious Diseases Unit, National Institute for Infectious Diseases "L. Spallanzani" IRCCS, Rome, Italy
| | - Silvia Rosati
- Respiratory Infectious Diseases Unit, National Institute for Infectious Diseases "L. Spallanzani" IRCCS, Rome, Italy
| | - Daniele Colombo
- Pathology Unit, National Institute for Infectious Diseases "L. Spallanzani" IRCCS, Rome, Italy
| | - Concetta Castilletti
- Virology Unit, National Institute for Infectious Diseases "L. Spallanzani" IRCCS, Rome, Italy
| | - Fabrizio Palmieri
- Respiratory Infectious Diseases Unit, National Institute for Infectious Diseases "L. Spallanzani" IRCCS, Rome, Italy
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16
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Titi L, Magnanimi E, Mancone M, Infusino F, Coppola G, Del Nonno F, Colombo D, Nardacci R, Falasca L, d'Amati G, Tarsitano MG, Merlino L, Fedele F, Pugliese F. Fatal Takotsubo syndrome in critical COVID-19 related pneumonia. Cardiovasc Pathol 2020; 51:107314. [PMID: 33259936 PMCID: PMC7699026 DOI: 10.1016/j.carpath.2020.107314] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 01/19/2023] Open
Abstract
COVID-19 can involve several organs and systems, often with indirect and poorly clarified mechanisms. Different presentations of myocardial injury have been reported, with variable degrees of severity, often impacting on the prognosis of COVID-19 patients. The pathogenic mechanisms underlying cardiac damage in SARS-CoV-2 infection are under active investigation. We report the clinical and autopsy findings of a fatal case of Takotsubo Syndrome occurring in an 83-year-old patient with COVID-19 pneumonia. The patient was admitted to Emergency Department with dyspnea, fever and diarrhea. A naso-pharyngeal swab test for SARS-CoV-2 was positive. In the following week his conditions worsened, requiring intubation and deep sedation. While in the ICU, the patient suddenly showed ST segment elevation. Left ventricular angiography showed decreased with hypercontractile ventricular bases and mid-apical ballooning, consistent with diagnosis of Takotsubo syndrome. Shortly after the patient was pulseless. After extensive resuscitation maneuvers, the patient was declared dead. Autopsy revealed a subepicardial hematoma, in absence of myocardial rupture. On histology, the myocardium showed diffuse edema, multiple foci of contraction band necrosis in both ventricles and occasional coagulative necrosis of single cardiac myocytes. Abundant macrophages CD68+ were detected in the myocardial interstitium. The finding of diffuse contraction band necrosis supports the pathogenic role of increased catecholamine levels; the presence of a significant interstitial inflammatory infiltrate, made up by macrophages, remains of uncertain significance.
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Affiliation(s)
- Luca Titi
- Department of Anesthesia and Intensive Care Medicine, Sapienza University of Rome, Rome, Italy.
| | - Eugenia Magnanimi
- Department of Anesthesia and Intensive Care Medicine, Sapienza University of Rome, Rome, Italy
| | - Massimo Mancone
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | - Fabio Infusino
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | - Giulia Coppola
- Department of Radiological, Oncological and Pathological Sciences, Sapienza University of Rome, Italy
| | - Franca Del Nonno
- National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Daniele Colombo
- National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Roberta Nardacci
- National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Laura Falasca
- National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Giulia d'Amati
- Department of Radiological, Oncological and Pathological Sciences, Sapienza University of Rome, Italy
| | | | - Lucia Merlino
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Francesco Fedele
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | - Francesco Pugliese
- Department of Anesthesia and Intensive Care Medicine, Sapienza University of Rome, Rome, Italy
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17
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Falasca L, Nardacci R, Colombo D, Lalle E, Di Caro A, Nicastri E, Antinori A, Petrosillo N, Marchioni L, Biava G, D'Offizi G, Palmieri F, Goletti D, Zumla A, Ippolito G, Piacentini M, Del Nonno F. Postmortem Findings in Italian Patients With COVID-19: A Descriptive Full Autopsy Study of Cases With and Without Comorbidities. J Infect Dis 2020; 222:1807-1815. [PMID: 32914853 PMCID: PMC7543426 DOI: 10.1093/infdis/jiaa578] [Citation(s) in RCA: 132] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 09/08/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Descriptions of the pathological features of coronavirus disease-2019 (COVID-19) caused by the novel zoonotic pathogen severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) emanate from tissue biopsies, case reports, and small postmortem studies restricted to the lung and specific organs. Whole-body autopsy studies of COVID-19 patients have been sparse. METHODS To further define the pathology caused by SARS-CoV-2 across all body organs, we performed autopsies on 22 patients with COVID-19 (18 with comorbidities and 4 without comorbidities) who died at the National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS Hospital, Rome, Italy. Tissues from the lung, heart, liver, kidney, spleen, and bone marrow (but not the brain) were examined. Only lung tissues were subject to transmission electron microscopy. RESULTS COVID-19 caused multisystem pathology. Pulmonary and cardiovascular involvement were dominant pathological features. Extrapulmonary manifestations included hepatic, kidney, splenic, and bone marrow involvement, and microvascular injury and thrombosis were also detected. These findings were similar in patients with or without preexisting medical comorbidities. CONCLUSIONS SARS-CoV-2 infection causes multisystem disease and significant pathology in most organs in patients with and without comorbidities.
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Affiliation(s)
- Laura Falasca
- National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Roberta Nardacci
- National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Daniele Colombo
- National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Eleonora Lalle
- National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Antonino Di Caro
- National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Emanuele Nicastri
- National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Andrea Antinori
- National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Nicola Petrosillo
- National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Luisa Marchioni
- National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Gianluigi Biava
- National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Gianpiero D'Offizi
- National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Fabrizio Palmieri
- National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Delia Goletti
- National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Alimuddin Zumla
- Department of Infection, Division of Infection and Immunity, University College London, London, United Kingdom
- National Institute for Health Research Biomedical Research Centre, University College London Hospitals National Health Service Foundation Trust, London, United Kingdom
| | - Giuseppe Ippolito
- National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Mauro Piacentini
- National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
- Laboratory of Cellular and Developmental Biology, Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Franca Del Nonno
- National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
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18
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Baiocchini A, Del Nonno F, Taibi C, Visco-Comandini U, D'Offizi G, Piacentini M, Falasca L. Publisher Correction: Liver sinusoidal endothelial cells (LSECs) modifications in patients with chronic hepatitis C. Sci Rep 2020; 10:1420. [PMID: 31980700 PMCID: PMC6981110 DOI: 10.1038/s41598-020-58227-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
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Affiliation(s)
- Andrea Baiocchini
- Pathology Unit, Department of epidemiology and Preclinical Research, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Franca Del Nonno
- Pathology Unit, Department of epidemiology and Preclinical Research, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Chiara Taibi
- Infectious Disease-Hepatology Unit, POIT Department, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Ubaldo Visco-Comandini
- Infectious Disease-Hepatology Unit, POIT Department, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Gianpiero D'Offizi
- Infectious Disease-Hepatology Unit, POIT Department, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Mauro Piacentini
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy.,Laboratory of Electron Microscopy, Department of Epidemiology and Preclinical Research National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Laura Falasca
- Laboratory of Electron Microscopy, Department of Epidemiology and Preclinical Research National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy.
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19
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D'Eletto M, Rossin F, Occhigrossi L, Farrace MG, Faccenda D, Desai R, Marchi S, Refolo G, Falasca L, Antonioli M, Ciccosanti F, Fimia GM, Pinton P, Campanella M, Piacentini M. Transglutaminase Type 2 Regulates ER-Mitochondria Contact Sites by Interacting with GRP75. Cell Rep 2019; 25:3573-3581.e4. [PMID: 30590033 DOI: 10.1016/j.celrep.2018.11.094] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 09/20/2018] [Accepted: 11/27/2018] [Indexed: 01/30/2023] Open
Abstract
Transglutaminase type 2 (TG2) is a multifunctional enzyme that plays a key role in mitochondria homeostasis under stressful cellular conditions. TG2 interactome analysis reveals an enzyme interaction with GRP75 (glucose-regulated protein 75). GRP75 localizes in mitochondria-associated membranes (MAMs) and acts as a bridging molecule between the two organelles by assembling the IP3R-GRP75-VDAC complex, which is involved in the transport of Ca2+ from the endoplasmic reticulum (ER) to mitochondria. We demonstrate that the TG2 and GRP75 interaction occurs in MAMs. The absence of the TG2-GRP75 interaction leads to an increase of the interaction between IP3R-3 and GRP75; a decrease of the number of ER-mitochondria contact sites; an impairment of the ER-mitochondrial Ca2+ flux; and an altered profile of the MAM proteome. These findings indicate TG2 is a key regulatory element of the MAMs.
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Affiliation(s)
- Manuela D'Eletto
- Department of Biology, University of Rome "Tor Vergata," Rome 00133, Italy
| | - Federica Rossin
- Department of Biology, University of Rome "Tor Vergata," Rome 00133, Italy
| | - Luca Occhigrossi
- Department of Biology, University of Rome "Tor Vergata," Rome 00133, Italy
| | | | - Danilo Faccenda
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 0TU, UK
| | - Radha Desai
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 0TU, UK
| | - Saverio Marchi
- Department of Morphology, Surgery and Experimental Medicine, Section of Pathology, Oncology and Experimental Biology, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara 44122, Italy
| | - Giulia Refolo
- National Institute for Infectious Diseases IRCCS "L. Spallanzani," Rome 00149, Italy
| | - Laura Falasca
- National Institute for Infectious Diseases IRCCS "L. Spallanzani," Rome 00149, Italy
| | - Manuela Antonioli
- National Institute for Infectious Diseases IRCCS "L. Spallanzani," Rome 00149, Italy
| | - Fabiola Ciccosanti
- National Institute for Infectious Diseases IRCCS "L. Spallanzani," Rome 00149, Italy
| | - Gian Maria Fimia
- National Institute for Infectious Diseases IRCCS "L. Spallanzani," Rome 00149, Italy; Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Lecce 73100, Italy
| | - Paolo Pinton
- Department of Morphology, Surgery and Experimental Medicine, Section of Pathology, Oncology and Experimental Biology, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara 44122, Italy
| | - Michelangelo Campanella
- Department of Biology, University of Rome "Tor Vergata," Rome 00133, Italy; Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, Royal College Street, London NW1 0TU, UK; UCL Consortium for Mitochondrial Research, Gower Street, London WC1E 6BT, UK
| | - Mauro Piacentini
- Department of Biology, University of Rome "Tor Vergata," Rome 00133, Italy; National Institute for Infectious Diseases IRCCS "L. Spallanzani," Rome 00149, Italy.
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20
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Bordoni V, Lalle E, Colavita F, Baiocchini A, Nardacci R, Falasca L, Carletti F, Cimini E, Bordi L, Kobinger G, D'Ambrosio V, Natale F, Giancotti A, Manganaro L, Del Nonno F, Zumla A, Liuzzi G, Ippolito G, Capobianchi MR, Agrati C, Castilletti C. Rescue of Replication-Competent ZIKV Hidden in Placenta-Derived Mesenchymal Cells Long After the Resolution of the Infection. Open Forum Infect Dis 2019; 6:ofz342. [PMID: 31660333 PMCID: PMC6785694 DOI: 10.1093/ofid/ofz342] [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: 05/27/2019] [Accepted: 09/17/2019] [Indexed: 11/13/2022] Open
Abstract
The Zika virus (ZIKV) genome, its negative-strand viral proteins, and virus-like particles were detected in placenta-derived mesenchymal cells (MSCs), indicating that ZIKV persists after virus clearance from maternal blood and can be rescued by in vitro cultivation. We report for the first time the presence of replication-competent ZIKV in MSCs from an asymptomatic woman who acquired infection during pregnancy.
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Affiliation(s)
- Veronica Bordoni
- Laboratory of Cellular Immunology and Pharmacology, National Institute for Infectious Diseases "L. Spallanzani," IRCCS, Rome, Italy
| | - Eleonora Lalle
- Laboratory of Virology, National Institute for Infectious Diseases "L. Spallanzani," IRCCS, Rome, Italy
| | - Francesca Colavita
- Laboratory of Virology, National Institute for Infectious Diseases "L. Spallanzani," IRCCS, Rome, Italy
| | - Andrea Baiocchini
- Unit of Pathology, National Institute for Infectious Diseases "L. Spallanzani," IRCCS, Rome, Italy
| | - Roberta Nardacci
- Laboratory of Electron Microscopy, National Institute for Infectious Diseases "L. Spallanzani," IRCCS, Rome, Italy
| | - Laura Falasca
- Laboratory of Electron Microscopy, National Institute for Infectious Diseases "L. Spallanzani," IRCCS, Rome, Italy
| | - Fabrizio Carletti
- Laboratory of Virology, National Institute for Infectious Diseases "L. Spallanzani," IRCCS, Rome, Italy
| | - Eleonora Cimini
- Laboratory of Cellular Immunology and Pharmacology, National Institute for Infectious Diseases "L. Spallanzani," IRCCS, Rome, Italy
| | - Licia Bordi
- Laboratory of Virology, National Institute for Infectious Diseases "L. Spallanzani," IRCCS, Rome, Italy
| | - Gary Kobinger
- Centre de Recherche en Infectiologie, Centre Hospitalier Universitaire de Québec, Université Laval, Quebec, Canada
| | - Valentina D'Ambrosio
- Department of Maternal and Child Health and Urologic Science, "Sapienza" University of Rome, Policlinico Umberto I Hospital, Rome, Italy
| | - Fabio Natale
- Department of Maternal and Child Health and Urologic Science, "Sapienza" University of Rome, Policlinico Umberto I Hospital, Rome, Italy
| | - Antonella Giancotti
- Department of Maternal and Child Health and Urologic Science, "Sapienza" University of Rome, Policlinico Umberto I Hospital, Rome, Italy
| | - Lucia Manganaro
- Department of Radiological, Oncological and Pathological Science, "Sapienza" University of Rome, Policlinico Umberto I Hospital, Rome, Italy
| | - Franca Del Nonno
- Unit of Pathology, National Institute for Infectious Diseases "L. Spallanzani," IRCCS, Rome, Italy
| | - Alimuddin Zumla
- Division of Infection and Immunity, Center for Clinical Microbiology, University College London, London, UK.,National Institute of Health Research Biomedical Research Centre, University College London Hospitals NHS Foundation Trust, London, UK
| | - Giuseppina Liuzzi
- Center for Prevention and Treatment of Infections in Pregnancy, National Institute for Infectious Diseases "L. Spallanzani," IRCCS, Rome, Italy
| | - Giuseppe Ippolito
- Scientific Direction, National Institute for Infectious Diseases "L. Spallanzani," IRCCS, Rome, Italy
| | - Maria Rosaria Capobianchi
- Laboratory of Virology, National Institute for Infectious Diseases "L. Spallanzani," IRCCS, Rome, Italy
| | - Chiara Agrati
- Laboratory of Cellular Immunology and Pharmacology, National Institute for Infectious Diseases "L. Spallanzani," IRCCS, Rome, Italy
| | - Concetta Castilletti
- Laboratory of Virology, National Institute for Infectious Diseases "L. Spallanzani," IRCCS, Rome, Italy
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21
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Blauenfeldt T, Petrone L, del Nonno F, Baiocchini A, Falasca L, Chiacchio T, Bondet V, Vanini V, Palmieri F, Galluccio G, Casrouge A, Eugen-Olsen J, Albert ML, Goletti D, Duffy D, Ruhwald M. Interplay of DDP4 and IP-10 as a Potential Mechanism for Cell Recruitment to Tuberculosis Lesions. Front Immunol 2018; 9:1456. [PMID: 30026741 PMCID: PMC6041415 DOI: 10.3389/fimmu.2018.01456] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [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: 11/08/2017] [Accepted: 06/12/2018] [Indexed: 12/25/2022] Open
Abstract
INTRODUCTION Mycobacterium tuberculosis is one of the world's most successful pathogens equipped to establish itself within the human host as a subclinical infection without overt disease. Unable to eradicate the bacteria, the immune system contains the infection in a granuloma structure. Th1 cells that are essential for infection control are recruited to the site of infection directed by chemokines, predominantly CXCL10. It has previously been shown that CXCL10 in the plasma of patients chronically infected with hepatitis C virus is present primarily in an antagonist form. This is due to N-terminal truncation by the enzyme DPP4, which results in the antagonist form that is capable of binding its receptor CXCR3, but does not induce signaling. We aimed to explore whether such CXCL10 antagonism may have an impact on the pathogenesis of tuberculosis (TB). RESULTS We measured plasma levels of agonist and antagonist CXCL10 by Simoa digital ELISA, as well as DPP4 enzyme activity in the plasma of 20 patients with active TB infection, 10 patients with pneumonia infection, and a group of 10 healthy controls. We found higher levels of total and antagonist CXCL10 and reduced DPP4 enzyme activity in the plasma of TB patients compared to controls. We traced the source of CXCL10 secretion using immunohistochemical and confocal analysis to multinucleated giant cells in the TB lesions, and variable expression by macrophages. Interestingly, these cells were associated with DPP4-positive T cells. Moreover, the analysis of lymphocytes at the site of TB infection (bronchoalveolar lavage) showed a reduced frequency of CXCR3+ T cells. INTERPRETATION Our data suggests that CXCL10 antagonism may be an important regulatory mechanism occurring at the site of TB pathology. CXCL10 can be inactivated shortly after secretion by membrane bound DPP4 (CD26), therefore, reducing its chemotactic potential. Given the importance of Th1 cell functions and IFN-γ-mediated effects in TB, our data suggest a possible unappreciated regulatory role of DPP4 in TB. PERSPECTIVES DPP4 is the target for a class of enzyme inhibitors used in the treatment of diabetes, and the results from this study suggest that these drugs could be repurposed as an adjunct immunotherapy of patients with TB and MDR-TB.
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Affiliation(s)
- Thomas Blauenfeldt
- Center for Vaccine Research, Statens Serum Institut, Copenhagen, Denmark
| | - Linda Petrone
- Translational Research Unit, Department of Epidemiology and Preclinical Research, “L. Spallanzani” National Institute for Infectious Diseases (INMI), Rome, Italy
| | - Franca del Nonno
- Pathology Unit, “L. Spallanzani” National Institute for Infectious Diseases (INMI), Rome, Italy
| | - Andrea Baiocchini
- Pathology Unit, “L. Spallanzani” National Institute for Infectious Diseases (INMI), Rome, Italy
| | - Laura Falasca
- Laboratory of Electron Microscopy, Department of Epidemiology and Preclinical Research, “L. Spallanzani” National Institute for Infectious Diseases (INMI), Rome, Italy
| | - Teresa Chiacchio
- Translational Research Unit, Department of Epidemiology and Preclinical Research, “L. Spallanzani” National Institute for Infectious Diseases (INMI), Rome, Italy
| | - Vincent Bondet
- Institut Pasteur, Laboratoire Immunobiologie des Cellules Dendritiques, Département d’Immunologie, Paris, France
- INSERM U1223, Institut Pasteur, Paris, France
| | - Valentina Vanini
- Translational Research Unit, Department of Epidemiology and Preclinical Research, “L. Spallanzani” National Institute for Infectious Diseases (INMI), Rome, Italy
| | - Fabrizio Palmieri
- Clinical Department, “L. Spallanzani” National Institute for Infectious Diseases (INMI), Rome, Italy
| | | | - Armanda Casrouge
- Institut Pasteur, Laboratoire Immunobiologie des Cellules Dendritiques, Département d’Immunologie, Paris, France
- INSERM U1223, Institut Pasteur, Paris, France
| | - Jesper Eugen-Olsen
- Copenhagen University Hospitals, Clinical Research Centre, Hvidovre, Denmark
| | - Matthew L. Albert
- Institut Pasteur, Laboratoire Immunobiologie des Cellules Dendritiques, Département d’Immunologie, Paris, France
- INSERM U1223, Institut Pasteur, Paris, France
- Genentech Inc, South San Francisco, CA, United States
| | - Delia Goletti
- Translational Research Unit, Department of Epidemiology and Preclinical Research, “L. Spallanzani” National Institute for Infectious Diseases (INMI), Rome, Italy
| | - Darragh Duffy
- Institut Pasteur, Laboratoire Immunobiologie des Cellules Dendritiques, Département d’Immunologie, Paris, France
- INSERM U1223, Institut Pasteur, Paris, France
| | - Morten Ruhwald
- Center for Vaccine Research, Statens Serum Institut, Copenhagen, Denmark
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22
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Rossin F, Villella VR, D'Eletto M, Farrace MG, Esposito S, Ferrari E, Monzani R, Occhigrossi L, Pagliarini V, Sette C, Cozza G, Barlev NA, Falasca L, Fimia GM, Kroemer G, Raia V, Maiuri L, Piacentini M. TG2 regulates the heat-shock response by the post-translational modification of HSF1. EMBO Rep 2018; 19:embr.201745067. [PMID: 29752334 DOI: 10.15252/embr.201745067] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [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: 08/24/2017] [Revised: 03/24/2018] [Accepted: 04/13/2018] [Indexed: 01/24/2023] Open
Abstract
Heat-shock factor 1 (HSF1) is the master transcription factor that regulates the response to proteotoxic stress by controlling the transcription of many stress-responsive genes including the heat-shock proteins. Here, we show a novel molecular mechanism controlling the activation of HSF1. We demonstrate that transglutaminase type 2 (TG2), dependent on its protein disulphide isomerase activity, triggers the trimerization and activation of HSF1 regulating adaptation to stress and proteostasis impairment. In particular, we find that TG2 loss of function correlates with a defect in the nuclear translocation of HSF1 and in its DNA-binding ability to the HSP70 promoter. We show that the inhibition of TG2 restores the unbalance in HSF1-HSP70 pathway in cystic fibrosis (CF), a human disorder characterized by deregulation of proteostasis. The absence of TG2 leads to an increase of about 40% in CFTR function in a new experimental CF mouse model lacking TG2. Altogether, these results indicate that TG2 plays a key role in the regulation of cellular proteostasis under stressful cellular conditions through the modulation of the heat-shock response.
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Affiliation(s)
- Federica Rossin
- Department of Biology, University of Rome 'Tor Vergata', Rome, Italy
| | - Valeria Rachela Villella
- Division of Genetics and Cell Biology, European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy
| | - Manuela D'Eletto
- Department of Biology, University of Rome 'Tor Vergata', Rome, Italy
| | | | - Speranza Esposito
- Division of Genetics and Cell Biology, European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy
| | - Eleonora Ferrari
- Division of Genetics and Cell Biology, European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy
| | - Romina Monzani
- Division of Genetics and Cell Biology, European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy
| | - Luca Occhigrossi
- Department of Biology, University of Rome 'Tor Vergata', Rome, Italy
| | - Vittoria Pagliarini
- Department of Biomedicine and Prevention, University of Rome 'Tor Vergata', Rome, Italy.,Laboratory of Neuroembryology, Fondazione Santa Lucia, Rome, Italy
| | - Claudio Sette
- Department of Biomedicine and Prevention, University of Rome 'Tor Vergata', Rome, Italy.,Laboratory of Neuroembryology, Fondazione Santa Lucia, Rome, Italy
| | - Giorgio Cozza
- Department of Molecular Medicine, University of Padua, Padova, Italy
| | - Nikolai A Barlev
- Gene Expression Laboratory, Institute of Cytology, Saint-Petersburg, Russia
| | - Laura Falasca
- National Institute for Infectious Diseases IRCCS 'L. Spallanzani', Rome, Italy
| | - Gian Maria Fimia
- National Institute for Infectious Diseases IRCCS 'L. Spallanzani', Rome, Italy.,Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Lecce, Italy
| | - Guido Kroemer
- Sorbonne Paris Cité, Université Paris Descartes, Paris, France.,Equipe 11 labellisée Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France.,Institut National de la Santé et de la Recherche Médicale, U1138, Paris, France.,Université Pierre et Marie Curie, Paris, France.,Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France.,Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France.,Department of Women's and Children's Health, Karolinska University Hospital, Stockholm, Sweden
| | - Valeria Raia
- Regional Cystic Fibrosis Center, Pediatric Unit, Department of Translational Medical Sciences, Federico II University, Naples, Italy
| | - Luigi Maiuri
- Division of Genetics and Cell Biology, European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy.,SCDU of Pediatrics, Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
| | - Mauro Piacentini
- Department of Biology, University of Rome 'Tor Vergata', Rome, Italy .,National Institute for Infectious Diseases IRCCS 'L. Spallanzani', Rome, Italy
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23
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Palucci I, Matic I, Falasca L, Minerva M, Maulucci G, De Spirito M, Petruccioli E, Goletti D, Rossin F, Piacentini M, Delogu G. Transglutaminase type 2 plays a key role in the pathogenesis of Mycobacterium tuberculosis infection. J Intern Med 2018; 283:303-313. [PMID: 29205566 DOI: 10.1111/joim.12714] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [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] [Indexed: 01/08/2023]
Abstract
BACKGROUND Mycobacterium tuberculosis (MTB), the aetiological agent of tuberculosis (TB), is capable of interfering with the phagosome maturation pathway, by inhibiting phagosome-lysosome fusion and the autophagic process to ensure survival and replication in macrophages. Thus, it has been proposed that the modulation of autophagy may represent a therapeutic approach to reduce MTB viability by enhancing its clearance. OBJECTIVE The aim of this study was to investigate whether transglutaminase type 2 (TG2) is involved in the pathogenesis of MTB. RESULTS We have shown that either genetic or pharmacological inhibition of TG2 leads to a marked reduction in MTB replicative capacity. Infection of TG2 knockout mice demonstrated that TG2 is required for MTB intracellular survival in macrophages and host tissues. The same inhibitory effect can be reproduced in vitro using Z-DON, a specific inhibitor of the transamidating activity of TG2. Massive cell death observed in macrophages that properly express TG2 is hampered by the absence of the enzyme and can be largely reduced by the treatment of wild-type macrophages with the TG2 inhibitor. Our data suggest that reduced MTB replication in cells lacking TG2 is due to the impairment of LC3/autophagy homeostasis. Finally, we have shown that treatment of MTB-infected murine and human primary macrophages with cystamine, a TG2 inhibitor already tested in clinical studies, causes a reduction in intracellular colony-forming units in human macrophages similar to that achieved by the anti-TB drug capreomycin. CONCLUSION These results suggest that inhibition of TG2 activity is a potential novel approach for the treatment of TB.
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Affiliation(s)
- I Palucci
- Institute of Microbiology, Università Cattolica del Sacro Cuore - Fondazione Policlinico Gemelli, Rome, Italy
| | - I Matic
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
| | - L Falasca
- National Institute for Infectious Diseases, IRCCS "Lazzaro Spallanzani", Rome, Italy
| | - M Minerva
- Institute of Microbiology, Università Cattolica del Sacro Cuore - Fondazione Policlinico Gemelli, Rome, Italy
| | - G Maulucci
- Institute of Physics, Università Cattolica del Sacro Cuore - Fondazione Policlinico Gemelli, Rome, Italy
| | - M De Spirito
- Institute of Physics, Università Cattolica del Sacro Cuore - Fondazione Policlinico Gemelli, Rome, Italy
| | - E Petruccioli
- National Institute for Infectious Diseases, IRCCS "Lazzaro Spallanzani", Rome, Italy
| | - D Goletti
- National Institute for Infectious Diseases, IRCCS "Lazzaro Spallanzani", Rome, Italy
| | - F Rossin
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
| | - M Piacentini
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy.,National Institute for Infectious Diseases, IRCCS "Lazzaro Spallanzani", Rome, Italy
| | - G Delogu
- Institute of Microbiology, Università Cattolica del Sacro Cuore - Fondazione Policlinico Gemelli, Rome, Italy
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24
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Piacentini M, Baiocchini A, Del Nonno F, Melino G, Barlev NA, Rossin F, D'Eletto M, Falasca L. Non-alcoholic fatty liver disease severity is modulated by transglutaminase type 2. Cell Death Dis 2018; 9:257. [PMID: 29449533 PMCID: PMC5833377 DOI: 10.1038/s41419-018-0292-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [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: 08/17/2017] [Revised: 12/14/2017] [Accepted: 12/15/2017] [Indexed: 02/07/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is one of the most important liver diseases worldwide. Currently, no effective treatment is available, and NAFLD pathogenesis is incompletely understood. Transglutaminase type 2 (TG2) is a ubiquitous enzyme whose dysregulation is implicated in the pathogenesis of various human diseases. Here we examined the impact of TG2 on NAFLD progression using the high-fat-diet-induced model in both wild-type and TG2-deficient mice. Animals were fed with a standard chow diet or a high-fat diet (42% of the energy from fat) for 16 weeks. Results demonstrated that the absence of a functional enzyme, which causes the impairment of autophagy/mitophagy, leads to worsening of disease progression. Data were confirmed by pharmacological inhibition of TG2 in WT animals. In addition, the analysis of human liver samples from NAFLD patients validated the enzyme’s involvement in the liver fat disease pathogenesis. Our findings strongly suggest that TG2 activation may offer protection in the context of NAFLD, thus representing a novel therapeutic target for tackling the NAFLD progression.
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Affiliation(s)
- Mauro Piacentini
- National Institute for Infectious Diseases, IRCCS "Lazzaro Spallanzani", Rome, Italy. .,Department of Biology, University of Rome "Tor Vergata", Rome, Italy.
| | - Andrea Baiocchini
- National Institute for Infectious Diseases, IRCCS "Lazzaro Spallanzani", Rome, Italy
| | - Franca Del Nonno
- National Institute for Infectious Diseases, IRCCS "Lazzaro Spallanzani", Rome, Italy
| | - Gerry Melino
- Department Experimental Medicine and Surgery, University of Rome "Tor Vergata", Rome, Italy
| | - Nickolai A Barlev
- Institute of Cytology Russian Academy of Sciences, Saint-Petersburg, Russian Federation
| | - Federica Rossin
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
| | - Manuela D'Eletto
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
| | - Laura Falasca
- National Institute for Infectious Diseases, IRCCS "Lazzaro Spallanzani", Rome, Italy.
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25
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Kowalik MA, Perra A, Ledda-Columbano GM, Ippolito G, Piacentini M, Columbano A, Falasca L. Induction of autophagy promotes the growth of early preneoplastic rat liver nodules. Oncotarget 2016; 7:5788-99. [PMID: 26735341 PMCID: PMC4868721 DOI: 10.18632/oncotarget.6810] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [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: 11/18/2015] [Accepted: 12/23/2015] [Indexed: 11/25/2022] Open
Abstract
Although inhibition of autophagy has been implicated in the onset and progression of cancer cells, it is still unclear whether its dysregulation at early stages of tumorigenesis plays an oncogenic or a tumor suppressor role. To address this question, we employed the Resistant-Hepatocyte rat model to study the very early stages of hepatocellular carcinoma (HCC) development. We detected a different autophagy-related gene expression and changes in the ultrastructural profile comparing the most aggressive preneoplastic lesions, namely those positive for the putative progenitor cell marker cytokeratin-19 (KRT-19) with the negative ones. The ultrastructural and immunohistochemical analyses of KRT-19-positive preneoplastic hepatocytes showed the presence of autophagic vacuoles which was associated with p62, Ambra1 and Beclin1 protein accumulation suggesting that a differential modulation of autophagy occurs at early stages of the oncogenesis in KRT-19-positive vs negative lesions. We observed an overall decrease of the autophagy-related genes transcripts and a strong up-regulation of miR-224 in the KRT-19-positive nodules. Interestingly, the treatment with the autophagy inducer, Amiodarone, caused a marked increase in the proliferation of KRT-19 positive preneoplastic lesions associated with a strong increase of their size; by contrast, Chloroquine, an inhibitor of the autophagic process, led to their reduction. These results show that autophagy modulation is a very early event in hepatocarcinogenesis and is restricted to a hepatocytes subset in the most aggressive preneoplastic lesions. Our findings highlight the induction of autophagy as a permissive condition favouring cancer progression indicating in its inhibition a therapeutic goal to interfere with the development of HCC.
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Affiliation(s)
- Marta Anna Kowalik
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Andrea Perra
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | | | - Giuseppe Ippolito
- National Institute for Infectious Disease, IRCCS "Lazzaro Spallanzani", Rome, Italy
| | - Mauro Piacentini
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy.,National Institute for Infectious Disease, IRCCS "Lazzaro Spallanzani", Rome, Italy
| | - Amedeo Columbano
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Laura Falasca
- National Institute for Infectious Disease, IRCCS "Lazzaro Spallanzani", Rome, Italy
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26
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Falasca L, Torino F, Marconi M, Costantini M, Pompeo V, Sentinelli S, De Salvo L, Patrizio M, Padula C, Gallucci M, Piacentini M, Malorni W. AMBRA1 and SQSTM1 expression pattern in prostate cancer. Apoptosis 2016; 20:1577-86. [PMID: 26423274 PMCID: PMC4602066 DOI: 10.1007/s10495-015-1176-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Prostate cancer is among the most commonly diagnosed male diseases and a leading cause of cancer mortality in men. There is emerging evidence that autophagy plays an important role in malignant cell survival and offers protection from the anti-cancer drugs in prostate cancer cells. AMBRA1 and the autophagic protein sequestosome-1 (SQSTM1; p62) expression were evaluated by immunohistochemistry and western blot on tissue samples from both benign and malignant prostatic lesions. The data reported in this pilot study demonstrated an increased expression of AMBRA1 and SQSTM1, which were also associated with an accumulation of LC3II in prostate cancer but not in benign lesion. In the present study we found that: (i) at variance with benign lesion, prostate cancer cells underwent SQSTM1 accumulation, i.e., clearly displayed a defective autophagic process but, also, (ii) prostate cancer accumulated AMBRA1 and (iii) this increase positively correlated with the Gleason score. These results underscore a possible implication of autophagy in prostate cancer phenotype and of AMBRA1 as possible cancer progression biomarker in this malignancy.
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Affiliation(s)
- Laura Falasca
- Laboratory of Cell Biology and Electron Microscopy, National Institute for Infectious Diseases I.R.C.C.S. 'L. Spallanzani', Rome, Italy
| | - Francesco Torino
- Department of Systems Medicine, Chair of Medical Oncology, Tor Vergata University of Rome, Rome, Italy
| | - Matteo Marconi
- Department of Drug Research and Medicine Evaluation, Istituto Superiore di Sanita', Rome, Italy
| | - Manuela Costantini
- Department of Urology, Regina Elena National Cancer Institute, IRCCS, Rome, Italy.,Laboratory of Molecular Medicine and Biotechnology, University Campus Bio-Medico of Rome, Rome, Italy
| | - Vincenzo Pompeo
- Department of Urology, Regina Elena National Cancer Institute, IRCCS, Rome, Italy
| | - Steno Sentinelli
- Department of Pathology, Regina Elena National Cancer, Institute, IRCCS, Rome, Italy
| | - Laura De Salvo
- Department of Pathology, Regina Elena National Cancer, Institute, IRCCS, Rome, Italy
| | - Mario Patrizio
- Department of Drug Research and Medicine Evaluation, Istituto Superiore di Sanita', Rome, Italy
| | | | - Michele Gallucci
- Department of Urology, Regina Elena National Cancer Institute, IRCCS, Rome, Italy
| | - Mauro Piacentini
- Laboratory of Cell Biology and Electron Microscopy, National Institute for Infectious Diseases I.R.C.C.S. 'L. Spallanzani', Rome, Italy.,Department of Biology, University of Rome 'Tor Vergata', Rome, Italy
| | - Walter Malorni
- Department of Drug Research and Medicine Evaluation, Istituto Superiore di Sanita', Rome, Italy. .,Istituto San Raffaele Pisana, Rome, Italy.
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27
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Diaz-Hidalgo L, Altuntas S, Rossin F, D'Eletto M, Marsella C, Farrace MG, Falasca L, Antonioli M, Fimia GM, Piacentini M. Transglutaminase type 2-dependent selective recruitment of proteins into exosomes under stressful cellular conditions. Biochim Biophys Acta 2016; 1863:2084-92. [PMID: 27169926 DOI: 10.1016/j.bbamcr.2016.05.005] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 05/02/2016] [Accepted: 05/06/2016] [Indexed: 12/21/2022]
Abstract
Numerous studies are revealing a role of exosomes in intercellular communication, and growing evidence indicates an important function for these vesicles in the progression and pathogenesis of cancer and neurodegenerative diseases. However, the biogenesis process of exosomes is still unclear. Tissue transglutaminase (TG2) is a multifunctional enzyme with different subcellular localizations. Particularly, under stressful conditions, the enzyme has been also detected in the extracellular matrix, but the mechanism(s) by which TG2 is released outside the cells requires further investigation. Therefore, the goal of the present study was to determine whether exosomes might be a vehicle for TG2 to reach the extracellular space, and whether TG2 could be involved in exosomes biogenesis. To address this issue, we isolated and characterized exosomes derived from cells either expressing or not TG2, under stressful conditions (i.e. proteasome impairment or expressing a mutated form of huntingtin (mHtt) containing 84 polyglutamine repeats). Our results show that TG2 is present in the exosomes only upon proteasome blockade, a condition in which TG2 interacts with TSG101 and ALIX, two key proteins involved in exosome biogenesis. Interestingly, we found that TG2 favours the assembly of a protein complex including mHtt, ALIX, TSG101 and BAG3, a co-chaperone involved in the clearance of mHtt. The formation of this complex is paralleled by the selective recruitment of mHtt and BAG3 in the exosomes derived from TG2 proficient cells only. Overall, our data indicate that TG2 is an important player in the biogenesis of exosomes controlling the selectivity of their cargo under stressful cellular conditions. In addition, these vesicles represent the way by which cells can release TG2 into the extracellular space under proteostasis impairment.
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Affiliation(s)
| | - Sara Altuntas
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
| | - Federica Rossin
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
| | - Manuela D'Eletto
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
| | - Claudia Marsella
- National Institute for Infectious Diseases, IRCCS "Lazzaro Spallanzani", Rome, Italy
| | | | - Laura Falasca
- National Institute for Infectious Diseases, IRCCS "Lazzaro Spallanzani", Rome, Italy
| | - Manuela Antonioli
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
| | - Gian Maria Fimia
- National Institute for Infectious Diseases, IRCCS "Lazzaro Spallanzani", Rome, Italy; Department of Biological and Environmental Science and Technology (Di.S.Te.B.A.), University of Salento, 73100 Lecce, Italy
| | - Mauro Piacentini
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy; National Institute for Infectious Diseases, IRCCS "Lazzaro Spallanzani", Rome, Italy.
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28
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Falasca L, Agrati C, Petrosillo N, Di Caro A, Capobianchi MR, Ippolito G, Piacentini M. Molecular mechanisms of Ebola virus pathogenesis: focus on cell death. Cell Death Differ 2015; 22:1250-9. [PMID: 26024394 PMCID: PMC4495366 DOI: 10.1038/cdd.2015.67] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [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: 01/22/2015] [Revised: 03/31/2015] [Accepted: 04/20/2015] [Indexed: 12/28/2022] Open
Abstract
Ebola virus (EBOV) belongs to the Filoviridae family and is responsible for a severe disease characterized by the sudden onset of fever and malaise accompanied by other non-specific signs and symptoms; in 30–50% of cases hemorrhagic symptoms are present. Multiorgan dysfunction occurs in severe forms with a mortality up to 90%. The EBOV first attacks macrophages and dendritic immune cells. The innate immune reaction is characterized by a cytokine storm, with secretion of numerous pro-inflammatory cytokines, which induces a huge number of contradictory signals and hurts the immune cells, as well as other tissues. Other highly pathogenic viruses also trigger cytokine storms, but Filoviruses are thought to be particularly lethal because they affect a wide array of tissues. In addition to the immune system, EBOV attacks the spleen and kidneys, where it kills cells that help the body to regulate its fluid and chemical balance and that make proteins that help the blood to clot. In addition, EBOV causes liver, lungs and kidneys to shut down their functions and the blood vessels to leak fluid into surrounding tissues. In this review, we analyze the molecular mechanisms at the basis of Ebola pathogenesis with a particular focus on the cell death pathways induced by the virus. We also discuss how the treatment of the infection can benefit from the recent experience of blocking/modulating cell death in human degenerative diseases.
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Affiliation(s)
- L Falasca
- National Institute for Infectious Diseases, Lazzaro Spallanzani, Rome, Italy
| | - C Agrati
- National Institute for Infectious Diseases, Lazzaro Spallanzani, Rome, Italy
| | - N Petrosillo
- National Institute for Infectious Diseases, Lazzaro Spallanzani, Rome, Italy
| | - A Di Caro
- National Institute for Infectious Diseases, Lazzaro Spallanzani, Rome, Italy
| | - M R Capobianchi
- National Institute for Infectious Diseases, Lazzaro Spallanzani, Rome, Italy
| | - G Ippolito
- National Institute for Infectious Diseases, Lazzaro Spallanzani, Rome, Italy
| | - M Piacentini
- 1] National Institute for Infectious Diseases, Lazzaro Spallanzani, Rome, Italy [2] Department of Biology, University of Rome Tor Vergata, Rome, Italy
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29
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D'Eletto M, Grazia Farrace M, Falasca L, Reali V, Oliverio S, Melino G, Griffin M, Fimia GM, Piacentini M. Transglutaminase 2 is involved in autophagosome maturation. Autophagy 2014; 5:1145-54. [DOI: 10.4161/auto.5.8.10040] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Altuntas S, D'Eletto M, Rossin F, Hidalgo LD, Farrace MG, Falasca L, Piredda L, Cocco S, Mastroberardino PG, Piacentini M, Campanella M. Type 2 Transglutaminase, mitochondria and Huntington's disease: menage a trois. Mitochondrion 2014; 19 Pt A:97-104. [PMID: 25262960 DOI: 10.1016/j.mito.2014.09.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Revised: 09/16/2014] [Accepted: 09/18/2014] [Indexed: 01/07/2023]
Abstract
Mitochondria produce the bulk of cellular energy and work as decisional "hubs" for cellular responses by integrating different input signals. The determinant in the physiopathology of mammals, they attract major attention, nowadays, for their contribution to brain degeneration. How they can withstand or succumb to insults leading to neuronal death is an object of great attention increasing the need for a better understanding of the interplay between inner and outer mitochondrial pathways residing in the cytosol. Of the latter, those dictating protein metabolism and therefore influencing the quality function and control of the organelle are of our most immediate interest and here we describe the Transglutaminase type 2 (TG2) contribution to mitochondrial function, dysfunction and neurodegeneration. Besides reviewing the latest evidences we share also the novel ones on the IF1 pathway depicting a molecular conduit governing mitochondrial turnover and homeostasis relevant to envisaging preventive and therapeutic strategies to respectively predict and counteract deficiencies associated with deregulated mitochondrial function in neuropathology.
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Affiliation(s)
- Sara Altuntas
- Department of Biology, University of Rome 'Tor Vergata', Rome 00133, Italy
| | - Manuela D'Eletto
- Department of Biology, University of Rome 'Tor Vergata', Rome 00133, Italy
| | - Federica Rossin
- Department of Biology, University of Rome 'Tor Vergata', Rome 00133, Italy
| | - Laura Diaz Hidalgo
- Department of Biology, University of Rome 'Tor Vergata', Rome 00133, Italy
| | | | - Laura Falasca
- National Institute for Infectious Diseases I.R.C.C.S. 'L. Spallanzani', Rome 00149, Italy
| | - Lucia Piredda
- Department of Biology, University of Rome 'Tor Vergata', Rome 00133, Italy
| | - Stefania Cocco
- European Brain Research Institute (EBRI), Rita Levi-Montalcini Foundation, Rome 00143, Italy
| | | | - Mauro Piacentini
- Department of Biology, University of Rome 'Tor Vergata', Rome 00133, Italy; National Institute for Infectious Diseases I.R.C.C.S. 'L. Spallanzani', Rome 00149, Italy.
| | - Michelangelo Campanella
- Department of Biology, University of Rome 'Tor Vergata', Rome 00133, Italy; European Brain Research Institute (EBRI), Rita Levi-Montalcini Foundation, Rome 00143, Italy; Department of Comparative Biomedical Sciences, Royal Veterinary College, University of London, UCL Consortium for Mitochondrial Research (CfMR), London, NW1 0TU, UK.
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Piacentini M, D'Eletto M, Farrace MG, Rodolfo C, Del Nonno F, Ippolito G, Falasca L. Characterization of distinct sub-cellular location of transglutaminase type II: changes in intracellular distribution in physiological and pathological states. Cell Tissue Res 2014; 358:793-805. [PMID: 25209703 PMCID: PMC4233112 DOI: 10.1007/s00441-014-1990-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Accepted: 08/13/2014] [Indexed: 12/22/2022]
Abstract
Transglutaminase type II (TG2) is a pleiotropic enzyme that exhibits various activities unrelated to its originally identified functions. Apart from post-translational modifications of proteins (peculiar to the transglutaminase family enzymes), TG2 is involved in diverse biological functions, including cell death, signaling, cytoskeleton rearrangements, displaying enzymatic activities, G-protein and non-enzymatic biological functions. It is involved in a variety of human diseases such as celiac disease, diabetes, neurodegenerative diseases, inflammatory disorders and cancer. Regulatory mechanisms might exist through which cells control multifunctional protein expression as a function of their sub-cellular localization. The definition of the tissue and cellular distribution of such proteins is important for the determination of their function(s). We investigate the sub-cellular localization of TG2 by confocal and immunoelectron microscopy techniques in order to gain an understanding of its properties. The culture conditions of human sarcoma cells (2fTGH cells), human embryonic kidney cells (HEK293TG) and human neuroblastoma cells (SK-n-BE(2)) are modulated to induce various stimuli. Human tissue samples of myocardium and gut mucosa (diseased and healthy) are also analyzed. Immuno-gold labeling indicates that TG2 is localized in the nucleus, mitochondria and endoplasmic reticulum under physiological conditions but that this is not a stable association, since different locations or different amounts of TG2 can be observed depending on stress stimuli or the state of activity of the cell. We describe a possible unrecognized location of TG2. Our findings thus provide useful insights regarding the functions and regulation of this pleiotropic enzyme.
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Affiliation(s)
- Mauro Piacentini
- Department of Biology, University of Rome 'Tor Vergata', Rome, Italy
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Taglietti F, Principe L, Bordi E, D'Arezzo S, Di Bella S, Falasca L, Piacentini M, Stefani S, Petrosillo N. Telavancin and daptomycin activity against meticillin-resistant Staphylococcus aureus strains after vancomycin-resistance selection in vitro. J Med Microbiol 2013; 62:1101-1102. [PMID: 23598375 DOI: 10.1099/jmm.0.060640-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Affiliation(s)
- Fabrizio Taglietti
- II Division of Infectious Diseases, IRCCS 'Lazzaro Spallanzani', Rome, Italy
| | - Luigi Principe
- Department of Microbiology and Virology, IRCCS 'Lazzaro Spallanzani', Rome, Italy
| | - Eugenio Bordi
- Department of Microbiology and Virology, IRCCS 'Lazzaro Spallanzani', Rome, Italy
| | - Silvia D'Arezzo
- Department of Microbiology and Virology, IRCCS 'Lazzaro Spallanzani', Rome, Italy
| | - Stefano Di Bella
- II Division of Infectious Diseases, IRCCS 'Lazzaro Spallanzani', Rome, Italy
| | - Laura Falasca
- Laboratory of Cellular Biology and Electron Microscopy, IRCCS 'Lazzaro Spallanzani', Rome, Italy
| | - Mauro Piacentini
- Laboratory of Cellular Biology and Electron Microscopy, IRCCS 'Lazzaro Spallanzani', Rome, Italy
| | | | - Nicola Petrosillo
- II Division of Infectious Diseases, IRCCS 'Lazzaro Spallanzani', Rome, Italy
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Romagnoli A, Etna MP, Giacomini E, Pardini M, Remoli ME, Corazzari M, Falasca L, Goletti D, Gafa V, Simeone R, Delogu G, Piacentini M, Brosch R, Fimia GM, Coccia EM. ESX-1 dependent impairment of autophagic flux by Mycobacterium tuberculosis in human dendritic cells. Autophagy 2012; 8:1357-70. [PMID: 22885411 DOI: 10.4161/auto.20881] [Citation(s) in RCA: 198] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Emerging evidence points to an important role of autophagy in the immune response mediated by dendritic cells (DC) against Mycobacterium tuberculosis (Mtb). Since current vaccination based on Bacillus Calmette-Guerin (BCG) is unable to stop the tuberculosis epidemic, a deeper comprehension of the alterations induced by Mtb in DC is essential for setting new vaccine strategies. Here, we compared the capacity of virulent (H37Rv) and avirulent (H37Ra) Mtb strains as well as BCG to modulate autophagy in human primary DC. We found that Mtb H37Rv impairs autophagy at the step of autophagosome-lysosome fusion. In contrast, neither Mtb H37Ra nor BCG strains were able to hamper autophagosome maturation. Both these attenuated strains have a functional inhibition of the 6kD early secreted antigenic target ESAT-6, an effector protein of the ESAT-6 Secretion System-1(ESX-1)/type VII secretion system. Notably, the ability to inhibit autophagy was fully restored in recombinant BCG and Mtb H37Ra strains in which ESAT-6 secretion was re-established by genetic complementation using either the ESX-1 region from Mtb (BCG::ESX-1) or the PhoP gene (Mtb H37Ra::PhoP), a regulator of ESAT-6 secretion. Importantly, the autophagic block induced by Mtb was overcome by rapamycin treatment leading to an increased interleukin-12 expression and, in turn, to an enhanced capacity to expand a Th1-oriented response. Collectively, our study demonstrated that Mtb alters the autophagic machinery through the ESX-1 system, and thereby opens new exciting perspectives to better understand the relationship between Mtb virulence and its ability to escape the DC-mediated immune response.
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Affiliation(s)
- Alessandra Romagnoli
- Department of Epidemiology and Preclinical Research, National Institute for Infectious Diseases L. Spallanzani, Rome, Italy
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Falasca L, Del Nonno F, Palmieri F, Licordari R, Iannicelli G, Antonucci G, Baiocchini A. Two cases of giant cell hepatitis in HIV-infected patients. Int J STD AIDS 2012; 23:e3-4. [PMID: 22844018 DOI: 10.1258/ijsa.2009.009407] [Citation(s) in RCA: 4] [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: 12/12/2022]
Abstract
Giant cell hepatitis (GCH) has been rarely described in adult HIV patients, and its outcome remain unknown. We report two cases of GCH among 81 HIV patients co-infected with the hepatitis C virus (HCV). Both patients had a sustained virological response, suppression of HCV viral load and HIV viral suppression after highly active antiretroviral therapy. Our findings would suggest that the presence of giant cells does not influence the clinical course of hepatitis.
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Affiliation(s)
- L Falasca
- Laboratory of Electron Microscopy, INMI-IRCCS ‘L Spallanzani’, Rome, Italy.
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D'Eletto M, Farrace MG, Rossin F, Strappazzon F, Giacomo GD, Cecconi F, Melino G, Sepe S, Moreno S, Fimia GM, Falasca L, Nardacci R, Piacentini M. Type 2 transglutaminase is involved in the autophagy-dependent clearance of ubiquitinated proteins. Cell Death Differ 2012; 19:1228-38. [PMID: 22322858 DOI: 10.1038/cdd.2012.2] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Eukaryotic cells are equipped with an efficient quality control system to selectively eliminate misfolded and damaged proteins, and organelles. Abnormal polypeptides that escape from proteasome-dependent degradation and aggregate in the cytosol can be transported via microtubules to inclusion bodies called 'aggresomes', where misfolded proteins are confined and degraded by autophagy. Here, we show that Type 2 transglutaminase (TG2) knockout mice display impaired autophagy and accumulate ubiquitinated protein aggregates upon starvation. Furthermore, p62-dependent peroxisome degradation is also impaired in the absence of TG2. We also demonstrate that, under cellular stressful conditions, TG2 physically interacts with p62 and they are localized in cytosolic protein aggregates, which are then recruited into autophagosomes, where TG2 is degraded. Interestingly, the enzyme's crosslinking activity is activated during autophagy and its inhibition leads to the accumulation of ubiquitinated proteins. Taken together, these data indicate that the TG2 transamidating activity has an important role in the assembly of protein aggregates, as well as in the clearance of damaged organelles by macroautophagy.
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Affiliation(s)
- M D'Eletto
- Department of Biology, University of Rome 'Tor Vergata', Italy
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Piacentini M, D'Eletto M, Falasca L, Farrace MG, Rodolfo C. Transglutaminase 2 at the crossroads between cell death and survival. Adv Enzymol Relat Areas Mol Biol 2011; 78:197-246. [PMID: 22220475 DOI: 10.1002/9781118105771.ch5] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Mauro Piacentini
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
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Séror C, Melki MT, Subra F, Raza SQ, Bras M, Saïdi H, Nardacci R, Voisin L, Paoletti A, Law F, Martins I, Amendola A, Abdul-Sater AA, Ciccosanti F, Delelis O, Niedergang F, Thierry S, Said-Sadier N, Lamaze C, Métivier D, Estaquier J, Fimia GM, Falasca L, Casetti R, Modjtahedi N, Kanellopoulos J, Mouscadet JF, Ojcius DM, Piacentini M, Gougeon ML, Kroemer G, Perfettini JL. Extracellular ATP acts on P2Y2 purinergic receptors to facilitate HIV-1 infection. ACTA ACUST UNITED AC 2011; 208:1823-34. [PMID: 21859844 PMCID: PMC3171090 DOI: 10.1084/jem.20101805] [Citation(s) in RCA: 140] [Impact Index Per Article: 10.8] [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: 12/27/2022]
Abstract
Extracellular adenosine triphosphate (ATP) can activate purinergic receptors of the plasma membrane and modulate multiple cellular functions. We report that ATP is released from HIV-1 target cells through pannexin-1 channels upon interaction between the HIV-1 envelope protein and specific target cell receptors. Extracellular ATP then acts on purinergic receptors, including P2Y2, to activate proline-rich tyrosine kinase 2 (Pyk2) kinase and transient plasma membrane depolarization, which in turn stimulate fusion between Env-expressing membranes and membranes containing CD4 plus appropriate chemokine co-receptors. Inhibition of any of the constituents of this cascade (pannexin-1, ATP, P2Y2, and Pyk2) impairs the replication of HIV-1 mutant viruses that are resistant to conventional antiretroviral agents. Altogether, our results reveal a novel signaling pathway involved in the early steps of HIV-1 infection that may be targeted with new therapeutic approaches.
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Affiliation(s)
- Claire Séror
- Institut National de la Santé et de la Recherche Médicale (INSERM) U848, F-94805 Villejuif, France
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Miccheli A, Tomassini A, Capuani G, Di Cocco ME, Sartori E, Falasca L, Conti Devirgiliis L, Manetti C, Conti F. Energy metabolism and re-establishment of intercellularadhesion complexes of gel entrapped hepatocytes. Cytotechnology 2011; 32:219-28. [PMID: 19002983 DOI: 10.1023/a:1008134005529] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
We studied the effect of continuous medium flow on the viabilityand structural organization of hepatocytes high density entrapped inalginate gel beads in the first few hours after isolation.The metabolic energy status of the entrapped cells, monitored invivo by (31)P NMR spectroscopy, was stable during theexperimental time and a physiological redox ratio was reachedafter the first three hours of culture. The morphologicalanalysis revealed that the entrapped hepatocytes placed in a fixed-bed bioreactor under continuous flow showed a polyhedricalshape with numerous microvilli on cell surface and reconstitutedtight junctions as well as bile canalicular structures, closelyresembling those present in the liver.These results suggest that continuous flow allows the culture ofhepatocytes at very high cell density within a matrix withoutloss of viability and accelerates cellular tissue reconstructionat very short times after isolation. This type of culture couldrepresent a very useful model for physiological andtoxicological studies as well as a promising approach toward thedevelopment of a bioartificial hybrid support device in acuteliver failure.
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Affiliation(s)
- A Miccheli
- Department of Chemistry, University La Sapienza, Rome, Italy
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Armstrong JL, Corazzari M, Martin S, Pagliarini V, Falasca L, Hill DS, Ellis N, Al Sabah S, Redfern CPF, Fimia GM, Piacentini M, Lovat PE. Oncogenic B-RAF signaling in melanoma impairs the therapeutic advantage of autophagy inhibition. Clin Cancer Res 2011; 17:2216-26. [PMID: 21270111 DOI: 10.1158/1078-0432.ccr-10-3003] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE Metastatic melanoma is characterized by extremely poor survival rates and hence novel therapies are urgently required. The ability of many anticancer drugs to activate autophagy, a lysosomal-mediated catabolic process which usually promotes cell survival, suggests targeting the autophagy pathway may be a novel means to augment therapy. EXPERIMENTAL DESIGN Autophagy and apoptosis were assessed in vitro in human melanoma cell lines in response to clinically achievable concentrations of the endoplasmic reticulum (ER) stress-inducing drugs fenretinide or bortezomib, and in vivo using a s.c. xenograft model. RESULTS Autophagy was activated in response to fenretinide or bortezomib in B-RAF wild-type cells, shown by increased conversion of LC3 to the autophagic vesicle-associated form (LC3-II) and redistribution to autophagosomes and autolysosomes, increased acidic vesicular organelle formation and autophagic vacuolization. In contrast, autophagy was significantly reduced in B-RAF-mutated melanoma cells, an effect attributed partly to oncogenic B-RAF. Rapamycin treatment was unable to stimulate LC3-II accumulation or redistribution in the presence of mutated B-RAF, indicative of de-regulated mTORC1-dependent autophagy. Knockdown of Beclin-1 or ATG7 sensitized B-RAF wild-type cells to fenretinide- or bortezomib-induced cell death, demonstrating a pro-survival function of autophagy. In addition, autophagy was partially reactivated in B-RAF-mutated cells treated with the BH3 mimetic ABT737 in combination with fenretinide or bortezomib, suggesting autophagy resistance is partly mediated by abrogated Beclin-1 function. CONCLUSIONS Our findings suggest inhibition of autophagy in combination with ER stress-inducing agents may represent a means by which to harness autophagy for the therapeutic benefit of B-RAF wild-type melanoma.
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Affiliation(s)
- Jane L Armstrong
- Dermatological Sciences, Institute of Cellular Medicine, Medical School, Newcastle University, Newcastle Upon Tyne, UK
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Testa A, Baiocchini A, Comandini U, Falasca L, Nardacci R, Maritti M, Loiacono L, Bibbolino C, Rizzi E, Cristofaro M, Ettorre G, Vennarecci G, Antonucci G, Del Nonno F. Fatal Sclerosing Peritonitis Associated With Primary Effusion Lymphoma After Liver Transplantation: A Case Report. Transplant Proc 2010; 42:3849-53. [DOI: 10.1016/j.transproceed.2010.08.039] [Citation(s) in RCA: 6] [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: 04/02/2010] [Revised: 07/06/2010] [Accepted: 08/19/2010] [Indexed: 10/18/2022]
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Matic I, Sacchi A, Rinaldi A, Melino G, Khosla C, Falasca L, Piacentini M. Characterization of transglutaminase type II role in dendritic cell differentiation and function. J Leukoc Biol 2010; 88:181-8. [PMID: 20371597 DOI: 10.1189/jlb.1009691] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
DCs play an essential role in the endotoxic shock, and their profound depletion occurs in septic patients and septic mice. TG2(-/-) mice are more resistant to the endotoxic shock induced by LPS. Here, we studied the cellular and molecular basis of this effect, analyzing the role of the enzyme in DC maturation and function. We show that TG2 is up-regulated drastically during the final, functional maturation of DCs consequent to LPS treatment. In keeping with this finding, the inhibition of the enzyme cross-linking activity determines the impairment of DC function highlighted by wide phenotypic changes associated with a reduced production of cytokines (IL-10, IL-12) after LPS treatment and a lower ability to induce IFN-gamma production by naïve T cells. The in vivo analysis of DCs obtained from TG2(-/-) mice confirmed that the enzyme ablation leads to an impairment of DC maturation and their reduced responsiveness to LPS treatment. In fact, a marked decrease in DC death, TLR4 down-regulation, and impaired up-regulation of MHCII and CD86 were observed in TG2(-/-) mice. Taken together, these data suggest that TG2 plays an important role in regulating the response of DCs to LPS and could be a candidate target for treating endotoxin-induced sepsis.
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Affiliation(s)
- Ivana Matic
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
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Di Donato P, Giulini NA, Bacchi Modena A, Cicchetti G, Comitini G, Gentile G, Cristiani P, Careccia A, Esposito E, Gualdi F, Golinelli S, Bergamini E, Masellis G, Rastelli S, Gigli C, Elia A, Marchesoni D, Sticotti F, Del Frate G, Zompicchiatti C, Marino L, Costa MR, Pinto P, Dodero D, Storace A, Spinelli G, Quaranta S, Bossi CM, Ollago A, Omodei U, Vaccari M, Luerti M, Repetti F, Zandonini G, Raspagliesi F, Dolci F, Gambarino G, De Pasquale B, Polizzotti G, Borsellino G, Alpinelli P, Natale N, Colombo D, Belloni C, Viani A, Cecchini G, Vinci GW, Samaja BA, Pasinetti E, Penotti M, Ognissanti F, Pesando P, Malanetto C, Gallo M, Dolfin G, Tartaglino P, Mossotto D, Pistoni A, Tarani A, Rattazzi PD, Rossaro D, Campanella M, Arisi E, Gamper M, Salvatores D, Bocchin E, Stellin G, Meli G, Azzini V, Tirozzi F, Buoso G, Fraioli R, Marsoni V, Cetera C, Sposetti R, Candiotto E, Pignalosa R, Del Pup L, Bellati U, Angeloni C, Buonerba M, Garzarelli S, Santilli C, Mucci M, Di Nisio Q, Cappa F, Pierangeli I, Cordone A, Falasca L, Ferrante D, Serra GB, Cirese E, Todaro PA, Romanini C, Spagnuolo L, Lanzone A, Donadio C, Fabiani M, Baldaccini E, Votano S, Bellardini P, Favale W, Monti V, Bonomo A, Boninfante CE, Pietrobattista P, Massacesi L, Donini G, Del Savio F, Palombi L, Procaccioli P, Romani A, Romagnoli G, Genazzani AR, Gambacciani M, Scarselli G, Curiel P, De Leo V, Melani A, Levi D'Ancona V, Giarrè G, Di Gioia E, Ceccarelli P, Massi GB, Cosci S, Gacci G, Cascianini A, Donati Sarti C, Bircolotti S, Pupita P, Mincigrucci M, Spadafora A, Santeufemia G, Marongiu G, Lai GR, Lai R, Dessole S, D'Andrea SA, Chiantera A, Arienzo R, Pastore AR, Tamburrino A, Cardone A, Colacurci N, Izzo S, Tesauro R, Pascarella A, De Silvio MG, Di Prisco L, Lauda N, Sirimarco F, Agrimi C, Casarella G, Senatore G, Ronzini S, Ruccia G, De Carlo G, Pisaturo G, Carlomagno F, Fasolino A, Fiorillo F, Sorrentino R, Ercolano VB, Panariello S, Brun A, Tropea P, Stigliano CM, Amoroso A, Vadalà P, Coco A, Galati G, Barese G, Masciari G, Pirillo P, Gioffrè T, Mastrantonio P, Cardamone A, D'Angelo N, Valentino G, Barretta R, Ferraro G, Ferruccio C, Agostinelli D, Corrado G, Scopelliti A, Schonauer S, Trojano V, Bongiovanni F, Tinelli F, Poddi ER, Scarpello F, Colonna L, Fischetti G, Doria R, Trombetta G, Cocca EB, D'Amore A, Di Masi M, Liguori R, Dimaggio A, Laneve MR, Maolo MC, Gravina G, Nacci G, Nocera F, Lupo A, Giannola C, Graziano R, Mezzatesta M, Vegna G, Giannone G, Palumbo G, Cancellieri F, Mondo A, Cordopatri A, Carrubba M, Mazzola V, Cincotta L, D'Asta S, Bono A, Li Calsi L, Cavallaro Nigro S, Schilirò S, Repici A, Gullo D, Orlando A, Specchiale F, Papotto A, Giulia FV, Adige TA, D'Aosta V, Massacesi A, Chiantera A, Donati Sarti C, De Aloysio P, Omodei U, Ognissanti F, Campagnoli C, Penotti M, Gambacciani A, Graziottin A, Baldi C, Colacurci N, Corrado Tonti G, Parazzini F, Chatenoud L. Risk factors for type 2 diabetes in women attending menopause clinics in Italy: a cross-sectional study. Climacteric 2009; 8:287-93. [PMID: 16397927 DOI: 10.1080/13697130500196866] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVE To analyze risk factors for type 2 diabetes among women attending menopause clinics in Italy for counselling about the menopause. SUBJECTS Women attending a network of first-level outpatient menopause clinics in Italy for general counselling about menopause or treatment of menopausal symptoms. METHODS Cross-sectional study with no exclusion criteria. Type 2 diabetes was defined according to National Diabetes Data Groups Indications and the fasting blood glucose at an oral glucose tolerance test within the previous year. RESULTS Out of the 44 694 considered in this analysis, 808 had a diagnosis of diabetes type 2 (1.8%). In comparison with women aged < 50 years, the multivariate odds ratios (OR) of type 2 diabetes were 1.31 (95% confidence interval (CI), 0.99-1.74) for women aged 50-52 years, 1.66 (95% CI, 1.27-2.17) at 53-56 years and 2.84 (95% CI, 2.20-3.67) in women aged > or = 57 years. Type 2 diabetes was less frequently reported in more educated women (OR high school/university vs. primary school = 0.44 (95% CI, 0.36-0.55)). Being overweight was associated with an increased risk of type 2 diabetes. In comparison with women reporting a low level of physical activity, the multivariate OR of type 2 diabetes was 0.67 (95% CI, 0.54-0.84) for women reporting regular physical activity. In comparison with premenopausal women, the multivariate OR of type 2 diabetes was 1.38 (95% CI, 1.03-1.84) in women with natural menopause. This finding was present also after allowing for the potential confounding effect of age. The multivariate OR of diabetes for users of hormonal replacement therapy was 0.58 (95% CI, 0.46-0.73). CONCLUSIONS This large cross-sectional study suggests that postmenopausal women are at higher risk of type 2 diabetes after allowance for the effect of age. Other main determinants of risk of type 2 diabetes in women around menopause were low socioeconomic status and being overweight. Diabetes was found less frequently in those taking hormone replacement therapy.
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Carletti F, Bordi L, Castilletti C, Di Caro A, Falasca L, Gioia C, Ippolito G, Zaniratti S, Beltrame A, Viale P, Capobianchi MR. Cat-to-human orthopoxvirus transmission, northeastern Italy. Emerg Infect Dis 2009; 15:499-500. [PMID: 19239778 PMCID: PMC2681114 DOI: 10.3201/eid1503.080813] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Abstract
Schwannoma is a well-described, benign nerve sheath tumor of the soft tissue, but is rare in the gastrointestinal tract. Gastrointestinal schwannomas are often incidentally discovered as small polypoid intraluminal lesions. In this report, we describe the clinicopathologic and immunohistochemical features of a distinctive neural mucosal polyp composed of a diffuse cellular proliferation of uniform bland spindled cells in the lamina propria that entraps the colonic crypts. Immunohistochemical analysis revealed strong and diffuse positivity for the S-100 protein. To avoid confusion of these solitary colorectal polyps containing pure spindled Schwann cell proliferation in the lamina propria with neural lesions that have significant association with inherited syndromes, it is better to use the designation “mucosal Schwann hamartoma”.
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Tóth B, Garabuczi É, Sarang Z, Vereb G, Vámosi G, Aeschlimann D, Blaskó B, Bécsi B, Erdõdi F, Lacy-Hulbert A, Zhang A, Falasca L, Birge RB, Balajthy Z, Melino G, Fésüs L, Szondy Z. Transglutaminase 2 Is Needed for the Formation of an Efficient Phagocyte Portal in Macrophages Engulfing Apoptotic Cells. J Immunol 2009; 182:2084-92. [DOI: 10.4049/jimmunol.0803444] [Citation(s) in RCA: 120] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Dini L, Creti P, Giulio AD, Marzio LD, Falasca L, Lentini A, Mossa G, Finazzi-Agro A. Liposome Internalization by Isolated Rat Hepatocytes. J Liposome Res 2008. [DOI: 10.3109/08982109309150747] [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: 11/13/2022]
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Falasca L, Farrace MG, Rinaldi A, Tuosto L, Melino G, Piacentini M. Transglutaminase type II is involved in the pathogenesis of endotoxic shock. J Immunol 2008; 180:2616-24. [PMID: 18250473 DOI: 10.4049/jimmunol.180.4.2616] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The pathogenesis of sepsis is characterized by the inability of the host to regulate the inflammatory response, and as a consequence, dysregulated inflammatory processes induce organ dysfunctions and death. Altered transglutaminase type II (TG2) expression is associated with the development of many inflammatory diseases. Therefore, in this study, we questioned whether TG2 could also contribute to the pathological inflammatory dysregulation occurring in septic shock in vivo. To this aim, we used as an experimental model the TG2 knockout mice, in which the process of septic shock was elicited by treatment with LPS. Interestingly, our results demonstrated that TG2 ablation leads to partial resistance to experimental sepsis. The increased survival of TG2(-/-) mice was reflected in a drastic reduction of organ injury, highlighted by a limited infiltration of neutrophils in kidney and peritoneum and by a better homeostasis of the proinflammatory mediators as well as mitochondrial function. We also showed that in wild-type mice, the TG2 expression is increased during endotoxemia and, being directly involved in the mechanisms of NF-kappaB activation, it may cause a continuous activation cycle in the inflammatory process, thus contributing to development of sepsis pathogenesis. We propose that the inhibition of TG2 could represent a novel approach in the treatment of inflammatory processes associated with sepsis.
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Affiliation(s)
- Laura Falasca
- Laboratory of Electron Microscopy, National Institute for Infectious Diseases L. Spallanzani, Rome, Italy
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Baiocchi L, Tisone G, Falasca L, Telesca C, Di Paolo D, Orlando G, Furfaro S, Anselmo A, Carbone M, Angelico M. Assembly of biliary lipids in native hepatic bile after orthotopic liver transplantation: A biochemical and ultra-structural study in humans. Hepatol Res 2006; 35:215-21. [PMID: 16621688 DOI: 10.1016/j.hepres.2006.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2006] [Revised: 03/03/2006] [Accepted: 03/05/2006] [Indexed: 02/08/2023]
Abstract
BACKGROUND In gallbladder bile, lipids aggregate as micelles and vesicles, yet the presence of lamellae remains controversial. Little is known on lipid assembly in dilute hepatic bile. Liver transplantation represents a condition in which bile is diluted immediately after transplant and tends to normalize thereafter. AIM To study biliary lipidic carriers after liver transplantation in relation to the increasing bile lipid concentration. METHODS Three bile samples were harvested from six patients (3M/3F) with normal post-transplant outcome: sample 1 at days 2-3, sample 2 at 1 week, and sample 3 at 2 weeks after transplant. Samples were analyzed by biochemical, morphological and quasi-elastic light scattering methodology. RESULTS Lipid concentration increased from 0.6g/dl at day 2-3 to 3.6g/dl at week 2. Electron microscopy showed the presence of unilamellar vesicles in all samples. Large amorphous particles interpreted as proteic aggregates were also present at day 2-3, while lamellae coexisted with vesicles later. Quasi-elastic light scattering data were consistent with electron microscopic findings. Liquid crystals were observed at polarizing microscopy with increasing bile lipid concentration. CONCLUSIONS Normalization of biliary lipid secretion after liver transplantation is associated with: (i) increased proportion of vesicles and reduction of their size; (ii) presence of lamellae.
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Iadevaia V, Rinaldi A, Falasca L, Pucillo LP, Alonzi T, Chimini G, Piacentini M. ATP-binding cassette transporter 1 and Transglutaminase 2 act on the same genetic pathway in the apoptotic cell clearance. Cell Death Differ 2006; 13:1998-2001. [PMID: 16691213 DOI: 10.1038/sj.cdd.4401930] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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