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Eberhart T, Stanley FU, Ricci L, Chirico T, Ferrarese R, Sisti S, Scagliola A, Baj A, Badurek S, Sommer A, Culp-Hill R, Dzieciatkowska M, Shokry E, Sumpton D, D'Alessandro A, Clementi N, Mancini N, Cardaci S. ACOD1 deficiency offers protection in a mouse model of diet-induced obesity by maintaining a healthy gut microbiota. Cell Death Dis 2024; 15:105. [PMID: 38302438 PMCID: PMC10834593 DOI: 10.1038/s41419-024-06483-2] [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: 09/07/2023] [Revised: 01/16/2024] [Accepted: 01/17/2024] [Indexed: 02/03/2024]
Abstract
Aconitate decarboxylase 1 (ACOD1) is the enzyme synthesizing itaconate, an immuno-regulatory metabolite tuning host-pathogen interactions. Such functions are achieved by affecting metabolic pathways regulating inflammation and microbe survival. However, at the whole-body level, metabolic roles of itaconate remain largely unresolved. By using multiomics-integrated approaches, here we show that ACOD1 responds to high-fat diet consumption in mice by promoting gut microbiota alterations supporting metabolic disease. Genetic disruption of itaconate biosynthesis protects mice against obesity, alterations in glucose homeostasis and liver metabolic dysfunctions by decreasing meta-inflammatory responses to dietary lipid overload. Mechanistically, fecal metagenomics and microbiota transplantation experiments demonstrate such effects are dependent on an amelioration of the intestinal ecosystem composition, skewed by high-fat diet feeding towards obesogenic phenotype. In particular, unbiased fecal microbiota profiling and axenic culture experiments point towards a primary role for itaconate in inhibiting growth of Bacteroidaceae and Bacteroides, family and genus of Bacteroidetes phylum, the major gut microbial taxon associated with metabolic health. Specularly to the effects imposed by Acod1 deficiency on fecal microbiota, oral itaconate consumption enhances diet-induced gut dysbiosis and associated obesogenic responses in mice. Unveiling an unrecognized role of itaconate, either endogenously produced or exogenously administered, in supporting microbiota alterations underlying diet-induced obesity in mice, our study points ACOD1 as a target against inflammatory consequences of overnutrition.
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Affiliation(s)
- Tanja Eberhart
- Cancer Metabolism Unit, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, 20132, Milan, Italy
| | - Federico Uchenna Stanley
- Cancer Metabolism Unit, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, 20132, Milan, Italy
| | - Luisa Ricci
- Cancer Metabolism Unit, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, 20132, Milan, Italy
| | - Tiziana Chirico
- Cancer Metabolism Unit, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, 20132, Milan, Italy
| | - Roberto Ferrarese
- Laboratory of Medical Microbiology and Virology, Vita-Salute San Raffaele University, Milan, 20100, Italy
- IRCCS San Raffaele Hospital, Milan, 20100, Italy
- Synlab Italia, Castenedolo, BS, Italy
| | - Sofia Sisti
- Laboratory of Medical Microbiology and Virology, Vita-Salute San Raffaele University, Milan, 20100, Italy
- IRCCS San Raffaele Hospital, Milan, 20100, Italy
| | - Alessandra Scagliola
- Cancer Metabolism Unit, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, 20132, Milan, Italy
- Istituto Nazionale di Genetica Molecolare, INGM, "Romeo ed Enrica Invernizzi", Milan, Italy
| | - Andreina Baj
- Department of Medicine and Technological Innovation, University of Insubria, Varese, Italy
| | - Sylvia Badurek
- Preclinical Phenotyping Facility, Vienna BioCenter Core Facilities (VBCF), member of the Vienna BioCenter (VBC), Vienna, Austria
| | - Andreas Sommer
- Next Generation Sequencing Facility, Vienna BioCenter Core Facilities (VBCF), member of the Vienna BioCenter (VBC), Vienna, Austria
| | - Rachel Culp-Hill
- Department of Biochemistry and Molecular Genetics, Anschutz Medical Campus, University of Colorado School of Medicine, Aurora, CO, 80045, USA
| | - Monika Dzieciatkowska
- Department of Biochemistry and Molecular Genetics, Anschutz Medical Campus, University of Colorado School of Medicine, Aurora, CO, 80045, USA
| | | | | | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics, Anschutz Medical Campus, University of Colorado School of Medicine, Aurora, CO, 80045, USA
| | - Nicola Clementi
- Laboratory of Medical Microbiology and Virology, Vita-Salute San Raffaele University, Milan, 20100, Italy
- IRCCS San Raffaele Hospital, Milan, 20100, Italy
| | - Nicasio Mancini
- Laboratory of Medical Microbiology and Virology, Vita-Salute San Raffaele University, Milan, 20100, Italy
- IRCCS San Raffaele Hospital, Milan, 20100, Italy
- Laboratory of Medical Microbiology and Virology, Department of Medicine and Technological Innovation, University of Insubria, Varese, Italy
- Laboratory of Medical Microbiology and Virology, Fondazione Macchi University Hospital, Varese, Italy
| | - Simone Cardaci
- Cancer Metabolism Unit, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, 20132, Milan, Italy.
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Häni L, Fung C, El Rahal A, Volz F, Kraus LM, Schnell O, Ferrarese R, Erny D, Schwabenland M, Urbach H, Lützen N, Beck J. Distinct Pattern of Membrane Formation With Spinal Cerebrospinal Fluid Leaks in Spontaneous Intracranial Hypotension. Oper Neurosurg (Hagerstown) 2024; 26:71-77. [PMID: 37747369 PMCID: PMC10688773 DOI: 10.1227/ons.0000000000000914] [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: 06/14/2023] [Accepted: 07/18/2023] [Indexed: 09/26/2023] Open
Abstract
BACKGROUND AND OBJECTIVES To systematically describe pertinent, intraoperative anatomic findings encountered when approaching spinal cerebrospinal fluid (CSF) leaks and CSF-venous fistulas in spontaneous intracranial hypotension (SIH). METHODS In a retrospective study, we included surgically treated patients suffering from SIH at our institution from April 2018 to March 2022. Anatomic, intraoperative data were extracted from operative notes and supplemented with data from surgical videos and images. Prominent anatomic features were compared among different types of CSF leaks. RESULTS The study cohort consists of 120 patients with a mean age of 45.2 years. We found four distinct patterns of spinal membranes specifically associated with different types of CSF leaks: (i) thick, dorsal membranes, which were hypervascular and may mimic the dura (pseudodura); (ii) thin, lateral membranes encapsulating a ventral epidural CSF compartment (confining the spinal longitudinal extradural CSF collection); (iii) ventral membranes constituting a transdural funnel-like CSF channel; and (iv) lateral membranes forming spinal cysts/meningeal diverticulae associated with lateral CSF leaks. The latter three types resemble a layer of arachnoid herniated through the dural defect. CONCLUSION We describe four distinct spinal (neo-)membranes in association with spinal CSF leaks. Formation of these membranes, or emergence by herniation of arachnoid through a dural defect, constitutes a specific pathoanatomic feature of patients with SIH and CSF leaks. Recognition of these membranes is of paramount importance for diagnosis and treatment of patients with spinal CSF leaks.
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Affiliation(s)
- Levin Häni
- Department of Neurosurgery, Medical Center—University of Freiburg, Freiburg im Breisgau, Germany;
| | - Christian Fung
- Department of Neurosurgery, Medical Center—University of Freiburg, Freiburg im Breisgau, Germany;
| | - Amir El Rahal
- Department of Neurosurgery, Medical Center—University of Freiburg, Freiburg im Breisgau, Germany;
- Faculty of Medicine of Geneva, Geneva, Switzerland;
| | - Florian Volz
- Department of Neurosurgery, Medical Center—University of Freiburg, Freiburg im Breisgau, Germany;
| | - Luisa Mona Kraus
- Department of Neurosurgery, Medical Center—University of Freiburg, Freiburg im Breisgau, Germany;
| | - Oliver Schnell
- Department of Neurosurgery, Medical Center—University of Freiburg, Freiburg im Breisgau, Germany;
| | - Roberto Ferrarese
- Department of Neurosurgery, Medical Center—University of Freiburg, Freiburg im Breisgau, Germany;
| | - Daniel Erny
- Institute of Neuropathology, Medical Center—University of Freiburg, Freiburg im Breisgau, Germany;
| | - Marius Schwabenland
- Institute of Neuropathology, Medical Center—University of Freiburg, Freiburg im Breisgau, Germany;
| | - Horst Urbach
- Department of Neuroradiology, Medical Center—University of Freiburg, Freiburg im Breisgau, Germany
| | - Niklas Lützen
- Department of Neuroradiology, Medical Center—University of Freiburg, Freiburg im Breisgau, Germany
| | - Jürgen Beck
- Department of Neurosurgery, Medical Center—University of Freiburg, Freiburg im Breisgau, Germany;
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Lo Conte M, Cosorich I, Ferrarese R, Antonini Cencicchio M, Nobili A, Palmieri V, Massimino L, Lamparelli LA, Liang W, Riba M, Devecchi E, Bolla AM, Pedone E, Scavini M, Bosi E, Fasano A, Ungaro F, Diana J, Mancini N, Falcone M. Alterations of the intestinal mucus layer correlate with dysbiosis and immune dysregulation in human Type 1 Diabetes. EBioMedicine 2023; 91:104567. [PMID: 37062177 PMCID: PMC10139895 DOI: 10.1016/j.ebiom.2023.104567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 03/09/2023] [Accepted: 03/30/2023] [Indexed: 04/18/2023] Open
Abstract
BACKGROUND In preclinical models of Type 1 Diabetes (T1D) the integrity of the gut barrier (GB) is instrumental to avoid dysregulated crosstalk between the commensal microbiota and immune cells and to prevent autoimmunity. The GB is composed of the intestinal epithelial barrier (IEB) and of the mucus layer containing mucins and antimicrobial peptides (AMPs) that are crucial to maintain immune tolerance. In preclinical models of T1D the alterations of the GB primarily affect the mucus layer. In human T1D increased gut permeability and IEB damage have been demonstrated but the integrity of the mucus layer was never assessed. METHODS We evaluated GB integrity by measuring serological markers of IEB damage (serological levels of zonulin) and bacterial translocation such as lipopolysaccharide binding protein (LBP) and myeloid differentiation protein 2 (MD2), and mRNA expression of tight junction proteins, mucins and AMPs in intestinal tissue of T1D patients and healthy controls (HC). Simultaneously, we performed immunological profiling on intestinal tissue and 16S rRNA analysis on the mucus-associated gut microbiota (MAGM). FINDINGS Our data show a GB damage with mucus layer alterations and reduced mRNA expression of several mucins (MUC2, MUC12, MUC13, MUC15, MUC20, MUC21) and AMPs (HD4 and HD5) in T1D patients. Mucus layer alterations correlated with reduced relative abundance of short chain fatty acids (SCFA)-producing bacteria such as Bifidobacterium dentium, Clostridium butyricum and Roseburia intestinalis that regulate mucin expression and intestinal immune homeostasis. In T1D patients we also found intestinal immune dysregulation with higher percentages of effector T cells such as T helper (Th) 1, Th17 and TNF-α+ T cells. INTERPRETATION Our data show that mucus layer alterations are present in T1D subjects and associated with dysbiosis and immune dysregulation. FUNDING Research Grants from the Juvenile Diabetes Foundation (Grant 1-INO-2018-640-A-N to MF and 2-SRA-2019-680-S-B to JD) and from the Italian Ministry of Health (Grant RF19-12370721 to MF).
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Affiliation(s)
- Marta Lo Conte
- Autoimmune Pathogenesis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Ilaria Cosorich
- Autoimmune Pathogenesis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Roberto Ferrarese
- Virology and Microbiology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Martina Antonini Cencicchio
- Autoimmune Pathogenesis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Angelica Nobili
- Autoimmune Pathogenesis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Vittoria Palmieri
- Autoimmune Pathogenesis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Luca Massimino
- Experimental Gastroenterology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | | | | | - Michela Riba
- Center for OMICS Sciences, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Elisabetta Devecchi
- Clinical Nutrition Center, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Andrea Mario Bolla
- Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Erika Pedone
- Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Marina Scavini
- Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Emanuele Bosi
- Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan, Italy; San Raffaele Vita Salute University, Milan, Italy
| | - Alessio Fasano
- Department of Pediatrics, Harvard Medical School, MA, USA
| | - Federica Ungaro
- Experimental Gastroenterology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | | | - Nicasio Mancini
- Virology and Microbiology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy; San Raffaele Vita Salute University, Milan, Italy
| | - Marika Falcone
- Autoimmune Pathogenesis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy.
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4
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Bosi C, Ferrarese R, De Lorenzo R, Mancini N, Bosi E. Lack of efficacy of Interferon β-1a in COVID-19 patients with mild to moderate pneumonia. Eur J Intern Med 2023; 110:104-106. [PMID: 36517370 PMCID: PMC9715494 DOI: 10.1016/j.ejim.2022.11.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/28/2022] [Accepted: 11/30/2022] [Indexed: 12/04/2022]
Affiliation(s)
- Carlo Bosi
- Unit of Internal Medicine, IRCCS San Raffaele Hospital, Milan, Italy
| | - Roberto Ferrarese
- Laboratory of Medical Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
| | - Rebecca De Lorenzo
- Unit of Internal Medicine, IRCCS San Raffaele Hospital, Milan, Italy; School of Internal Medicine, Vita-Salute San Raffaele University, Milan, Italy
| | - Nicasio Mancini
- Laboratory of Medical Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
| | - Emanuele Bosi
- Unit of Internal Medicine, IRCCS San Raffaele Hospital, Milan, Italy; School of Internal Medicine, Vita-Salute San Raffaele University, Milan, Italy.
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5
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Criscuolo E, Giuliani B, Ferrarese R, Ferrari D, Locatelli M, Clementi M, Mancini N, Clementi N. Smallpox vaccination-elicited antibodies cross-neutralize 2022-Monkeypox virus Clade II. J Med Virol 2023; 95:e28643. [PMID: 36890648 DOI: 10.1002/jmv.28643] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/17/2023] [Accepted: 03/05/2023] [Indexed: 03/10/2023]
Abstract
Since early May 2022, some monkeypox virus (MPXV) infections have been reported from countries where the disease is not endemic. Within two months, the number of patients has increased extensively, becoming the most considerable MPXV outbreak described. Smallpox vaccines demonstrated high efficacy against monkeypox viruses in the past and are considered a crucial outbreak control measure. However, viruses isolated during the current outbreak carry distinct genetic variations, and the cross-neutralizing capability of antibodies remains to be assessed. Here we report that serum antibodies elicited by first-generation smallpox vaccines can neutralize the current MPXV more than 40 years after vaccine administration. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Elena Criscuolo
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan
| | - Benedetta Giuliani
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan
| | - Roberto Ferrarese
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan
| | | | | | - Massimo Clementi
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan.,Synlab Italia, Castenedolo (BS), Italy
| | - Nicasio Mancini
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan.,IRCCS San Raffaele Hospital, Milan, Italy
| | - Nicola Clementi
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan.,IRCCS San Raffaele Hospital, Milan, Italy
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6
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Damin F, Galbiati S, Clementi N, Ferrarese R, Mancini N, Sola L, Chiari M. Dual-Domain Reporter Approach for Multiplex Identification of Major SARS-CoV-2 Variants of Concern in a Microarray-Based Assay. Biosensors (Basel) 2023; 13:269. [PMID: 36832035 PMCID: PMC9953785 DOI: 10.3390/bios13020269] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/06/2023] [Accepted: 02/09/2023] [Indexed: 06/18/2023]
Abstract
Since the emergence of the COVID-19 pandemic in December 2019, the SARS-CoV-2 virus continues to evolve into many variants emerging around the world. To enable regular surveillance and timely adjustments in public health interventions, it is of the utmost importance to accurately monitor and track the distribution of variants as rapidly as possible. Genome sequencing is the gold standard for monitoring the evolution of the virus, but it is not cost-effective, rapid and easily accessible. We have developed a microarray-based assay that can distinguish known viral variants present in clinical samples by simultaneously detecting mutations in the Spike protein gene. In this method, the viral nucleic acid, extracted from nasopharyngeal swabs, after RT-PCR, hybridizes in solution with specific dual-domain oligonucleotide reporters. The domains complementary to the Spike protein gene sequence encompassing the mutation form hybrids in solution that are directed by the second domain ("barcode" domain) at specific locations on coated silicon chips. The method utilizes characteristic fluorescence signatures to unequivocally differentiate, in a single assay, different known SARS-CoV-2 variants. In the nasopharyngeal swabs of patients, this multiplex system was able to genotype the variants which have caused waves of infections worldwide, reported by the WHO as being of concern (VOCs), namely Alpha, Beta, Gamma, Delta and Omicron variants.
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Affiliation(s)
- Francesco Damin
- National Research Council of Italy, Institute of Chemical Sciences and Technologies “G. Natta”, 20131 Milan, Italy
| | - Silvia Galbiati
- Complications of Diabetes Units, Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Nicola Clementi
- Laboratory of Medical Microbiology and Virology, Vita-Salute San Raffaele University, 20132 Milan, Italy
- Laboratory of Medical Microbiology and Virology, IRCCS San Raffaele Hospital, 20132 Milan, Italy
| | - Roberto Ferrarese
- Laboratory of Medical Microbiology and Virology, IRCCS San Raffaele Hospital, 20132 Milan, Italy
| | - Nicasio Mancini
- Laboratory of Medical Microbiology and Virology, Vita-Salute San Raffaele University, 20132 Milan, Italy
- Laboratory of Medical Microbiology and Virology, IRCCS San Raffaele Hospital, 20132 Milan, Italy
| | - Laura Sola
- National Research Council of Italy, Institute of Chemical Sciences and Technologies “G. Natta”, 20131 Milan, Italy
| | - Marcella Chiari
- National Research Council of Italy, Institute of Chemical Sciences and Technologies “G. Natta”, 20131 Milan, Italy
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7
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Lo Conte M, Antonini Cencicchio M, Ulaszewska M, Nobili A, Cosorich I, Ferrarese R, Massimino L, Andolfo A, Ungaro F, Mancini N, Falcone M. A diet enriched in omega-3 PUFA and inulin prevents type 1 diabetes by restoring gut barrier integrity and immune homeostasis in NOD mice. Front Immunol 2023; 13:1089987. [PMID: 36713378 PMCID: PMC9880528 DOI: 10.3389/fimmu.2022.1089987] [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: 11/04/2022] [Accepted: 12/23/2022] [Indexed: 01/15/2023] Open
Abstract
Introduction The integrity of the gut barrier (GB) is fundamental to regulate the crosstalk between the microbiota and the immune system and to prevent inflammation and autoimmunity at the intestinal level but also in organs distal from the gut such as the pancreatic islets. In support to this idea, we recently demonstrated that breakage of GB integrity leads to activation of islet-reactive T cells and triggers autoimmune Type 1 Diabetes (T1D). In T1D patients as in the NOD mice, the spontaneous model of autoimmune diabetes, there are alterations of the GB that specifically affect structure and composition of the mucus layer; however, it is yet to be determined whether a causal link between breakage of the GB integrity and occurrence of autoimmune T1D exists. Methods Here we restored GB integrity in the NOD mice through administration of an anti-inflammatory diet (AID- enriched in soluble fiber inulin and omega 3-PUFA) and tested the effect on T1D pathogenesis. Results We found that the AID prevented T1D in NOD mice by restoring GB integrity with increased mucus layer thickness and higher mRNA transcripts of structural (Muc2) and immunoregulatory mucins (Muc1 and Muc3) as well as of tight junction proteins (claudin1). Restoration of GB integrity was linked to reduction of intestinal inflammation (i.e., reduced expression of IL-1β, IL-23 and IL-17 transcripts) and expansion of regulatory T cells (FoxP3+ Treg cells and IL-10+ Tr1 cells) at the expenses of effector Th1/Th17 cells in the intestine, pancreatic lymph nodes (PLN) and intra-islet lymphocytes (IIL) of AID-fed NOD mice. Importantly, the restoration of GB integrity and immune homeostasis were associated with enhanced concentrations of anti-inflammatory metabolites of the ω3/ω6 polyunsaturated fatty acids (PUFA) and arachidonic pathways and modifications of the microbiome profile with increased relative abundance of mucus-modulating bacterial species such as Akkermansia muciniphila and Akkermansia glycaniphila. Discussion Our data provide evidence that the restoration of GB integrity and intestinal immune homeostasis through administration of a tolerogenic AID that changed the gut microbial and metabolic profiles prevents autoimmune T1D in preclinical models.
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Affiliation(s)
- Marta Lo Conte
- Autoimmune Pathogenesis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy,Università Vita-Salute San Raffaele, Milan, Italy
| | - Martina Antonini Cencicchio
- Autoimmune Pathogenesis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy,Università Vita-Salute San Raffaele, Milan, Italy
| | - Marynka Ulaszewska
- Proteomics and Metabolomics Facility (ProMeFa), IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Angelica Nobili
- Autoimmune Pathogenesis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Ilaria Cosorich
- Autoimmune Pathogenesis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Roberto Ferrarese
- Laboratory of Medical Microbiology and Virology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Luca Massimino
- Experimental Gastroenterology Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Annapaola Andolfo
- Proteomics and Metabolomics Facility (ProMeFa), IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Federica Ungaro
- Experimental Gastroenterology Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Nicasio Mancini
- Laboratory of Medical Microbiology and Virology, IRCCS San Raffaele Scientific Institute, Milan, Italy,Laboratory of Medical Microbiology and Virology, Università “Vita-Salute” San Raffaele, Milan, Italy
| | - Marika Falcone
- Autoimmune Pathogenesis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy,*Correspondence: Marika Falcone,
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8
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Ferrarese R, Izzo A, Andrieux G, Lagies S, Bartmuss JP, Masilamani AP, Wasilenko A, Osti D, Faletti S, Schulzki R, Yuan S, Kling E, Ribecco V, Heiland DH, Tholen S, Prinz M, Pelicci G, Kammerer B, Boerries M, Carro MS. ZBTB18 inhibits SREBP-dependent lipid synthesis by halting CTBPs and LSD1 activity in glioblastoma. Life Sci Alliance 2022; 6:6/1/e202201400. [PMID: 36414381 PMCID: PMC9684030 DOI: 10.26508/lsa.202201400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 10/28/2022] [Accepted: 11/02/2022] [Indexed: 11/23/2022] Open
Abstract
Enhanced fatty acid synthesis is a hallmark of tumors, including glioblastoma. SREBF1/2 regulate the expression of enzymes involved in fatty acid and cholesterol synthesis. Yet, little is known about the precise mechanism regulating SREBP gene expression in glioblastoma. Here, we show that a novel interaction between the co-activator/co-repressor CTBP and the tumor suppressor ZBTB18 regulates the expression of SREBP genes. In line with our findings, metabolic assays and glucose tracing analysis confirm the reduction in several phospholipid species upon ZBTB18 expression. Our study identifies CTBP1/2 and LSD1 as co-activators of SREBP genes and indicates that the functional activity of the CTBP-LSD1 complex is altered by ZBTB18. ZBTB18 binding to the SREBP gene promoters is associated with reduced LSD1 demethylase activity of H3K4me2 and H3K9me2 marks. Concomitantly, the interaction between LSD1, CTBP, and ZNF217 is increased, suggesting that ZBTB18 promotes LSD1 scaffolding function. Our results outline a new epigenetic mechanism enrolled by ZBTB18 and its co-factors to regulate fatty acid synthesis that could be targeted to treat glioblastoma patients.
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Affiliation(s)
- Roberto Ferrarese
- Department of Neurosurgery, Medical Center–University of Freiburg, Faculty of Medicine, University of Freiburg, Breisgau, Germany
| | - Annalisa Izzo
- Department of Neurosurgery, Medical Center–University of Freiburg, Faculty of Medicine, University of Freiburg, Breisgau, Germany
| | - Geoffroy Andrieux
- Institute of Medical Bioinformatics and Systems Medicine, Medical Center–University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany,German Cancer Consortium (DKTK), Partner Site Freiburg and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Simon Lagies
- Center for Biological Systems Analysis, University of Freiburg, Breisgau, Germany,Spemann Graduate School of Biology and Medicine (SGBM), University of Freiburg, Freiburg, Germany,Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Johanna Paulina Bartmuss
- Department of Neurosurgery, Medical Center–University of Freiburg, Faculty of Medicine, University of Freiburg, Breisgau, Germany
| | - Anie Priscilla Masilamani
- Department of Neurosurgery, Medical Center–University of Freiburg, Faculty of Medicine, University of Freiburg, Breisgau, Germany
| | - Alix Wasilenko
- Department of Neurosurgery, Medical Center–University of Freiburg, Faculty of Medicine, University of Freiburg, Breisgau, Germany
| | - Daniela Osti
- Department of Experimental Oncology, IEO, European Institute of Oncology, IRCCS, Milan, Italy
| | - Stefania Faletti
- Department of Experimental Oncology, IEO, European Institute of Oncology, IRCCS, Milan, Italy
| | - Rana Schulzki
- Department of Neurosurgery, Medical Center–University of Freiburg, Faculty of Medicine, University of Freiburg, Breisgau, Germany
| | - Shuai Yuan
- Department of Neurosurgery, Medical Center–University of Freiburg, Faculty of Medicine, University of Freiburg, Breisgau, Germany
| | - Eva Kling
- Department of Neurosurgery, Medical Center–University of Freiburg, Faculty of Medicine, University of Freiburg, Breisgau, Germany
| | - Valentino Ribecco
- Department of Neurosurgery, Medical Center–University of Freiburg, Faculty of Medicine, University of Freiburg, Breisgau, Germany
| | - Dieter Henrik Heiland
- Department of Neurosurgery, Medical Center–University of Freiburg, Faculty of Medicine, University of Freiburg, Breisgau, Germany,German Cancer Consortium (DKTK), Partner Site Freiburg and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Stefan Tholen
- Institute of Clinical Pathology, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Marco Prinz
- Institute of Neuropathology, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany,Signaling Research Centres BIOSS and CIBSS, University of Freiburg, Freiburg, Germany,Center for NeuroModulation (NeuroModul), University of Freiburg, Freiburg, Germany
| | - Giuliana Pelicci
- Department of Experimental Oncology, IEO, European Institute of Oncology, IRCCS, Milan, Italy,Department of Translational Medicine, Piemonte Orientale University “Amedeo Avo-Gadro,” Novara, Italy
| | - Bernd Kammerer
- Center for Biological Systems Analysis, University of Freiburg, Breisgau, Germany,Spemann Graduate School of Biology and Medicine (SGBM), University of Freiburg, Freiburg, Germany,BIOSS Centre of Biological Signaling Studies, University of Freiburg, Freiburg Germany
| | - Melanie Boerries
- Institute of Medical Bioinformatics and Systems Medicine, Medical Center–University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany,German Cancer Consortium (DKTK), Partner Site Freiburg and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Maria Stella Carro
- Department of Neurosurgery, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisgau, Germany
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9
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Lai A, Bergna A, Della Ventura C, Menzo S, Bruzzone B, Sagradi F, Ceccherini-Silberstein F, Weisz A, Clementi N, Brindicci G, Vicenti I, Sasset L, Caucci S, Corvaro B, Ippoliti S, Acciarri C, De Pace V, Lanfranchi L, Bellocchi MC, Giurato G, Ferrarese R, Lagioia A, Francisci D, Colombo ML, Lazzarin S, Ogliastro M, Cappelletti MR, Iannetta M, Rizzo F, Torti C, Fumi M, d’Avenia M, Brusa S, Greco F, Menchise A, Letizia V, Vaccaro E, Santoro CR, Fraccalvieri C, Testa S, Carioti L, Rocco T, Saracino A, Cattelan A, Clementi M, Sarmati L, Riva A, Galli M, Antinori S, Zehender G. Epidemiological and Clinical Features of SARS-CoV-2 Variants Circulating between April-December 2021 in Italy. Viruses 2022; 14:v14112508. [PMID: 36423117 PMCID: PMC9699621 DOI: 10.3390/v14112508] [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: 09/14/2022] [Revised: 11/03/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022] Open
Abstract
SARS-CoV-2 is constantly evolving, leading to new variants. We analysed data from 4400 SARS-CoV-2-positive samples in order to pursue epidemiological variant surveillance and to evaluate their impact on public health in Italy in the period of April-December 2021. The main circulating strain (76.2%) was the Delta variant, followed by the Alpha (13.3%), the Omicron (5.3%), and the Gamma variants (2.9%). The B.1.1 lineages, Eta, Beta, Iota, Mu, and Kappa variants, represented around 1% of cases. There were 48.2% of subjects who had not been vaccinated, and they had a lower median age compared to the vaccinated subjects (47 vs. 61 years). An increasing number of infections in the vaccinated subjects were observed over time, with the highest proportion in November (85.2%). The variants correlated with clinical status; the largest proportion of symptomatic patients (59.6%) was observed with the Delta variant, while subjects harbouring the Gamma variant showed the highest proportion of asymptomatic infection (21.6%), albeit also deaths (5.4%). The Omicron variant was only found in the vaccinated subjects, of which 47% had been hospitalised. The diffusivity and pathogenicity associated with the different SARS-CoV-2 variants are likely to have relevant public health implications, both at the national and international levels. Our study provides data on the rapid changes in the epidemiological landscape of the SARS-CoV-2 variants in Italy.
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Affiliation(s)
- Alessia Lai
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20174 Milan, Italy
- Correspondence: ; Tel.: +39-0250319775
| | - Annalisa Bergna
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20174 Milan, Italy
| | - Carla Della Ventura
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20174 Milan, Italy
| | - Stefano Menzo
- Virology Unit, Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, 60131 Ancona, Italy
| | | | - Fabio Sagradi
- Unit of Infectious Diseases, Azienda Socio Sanitaria Territoriale Cremona, 26100 Cremona, Italy
| | | | - Alessandro Weisz
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, 84084 Salerno, Italy
| | - Nicola Clementi
- Laboratory of Microbiology and Virology, Università “Vita-Salute” San Raffaele, 20158 Milan, Italy
| | | | - Ilaria Vicenti
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy
| | - Lolita Sasset
- Infectious Diseases Unit, Azienda Ospedale Università di Padova, 35128 Padova, Italy
| | - Sara Caucci
- Virology Unit, Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, 60131 Ancona, Italy
| | - Benedetta Corvaro
- Virology Unit, Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, 60131 Ancona, Italy
| | - Silvia Ippoliti
- Virology Unit, Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, 60131 Ancona, Italy
| | - Carla Acciarri
- Virology Unit, Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, 60131 Ancona, Italy
| | | | - Leonardo Lanfranchi
- Unit of Infectious Diseases, Azienda Socio Sanitaria Territoriale Cremona, 26100 Cremona, Italy
| | - Maria C. Bellocchi
- Department of Experimental Medicine, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Giorgio Giurato
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, 84084 Salerno, Italy
| | - Roberto Ferrarese
- Laboratory of Microbiology and Virology, Università “Vita-Salute” San Raffaele, 20158 Milan, Italy
| | | | - Daniela Francisci
- Department of Medicine and Surgery, Clinic of Infectious Diseases, Santa Maria della Misericordia Hospital, University of Perugia, 06123 Perugia, Italy
| | - Martina L. Colombo
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20174 Milan, Italy
| | - Samuel Lazzarin
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20174 Milan, Italy
| | - Matilde Ogliastro
- Department of Health Sciences (DISSAL), University of Genoa, 16126 Genoa, Italy
| | - Maria R. Cappelletti
- Unit of Infectious Diseases, Azienda Socio Sanitaria Territoriale Cremona, 26100 Cremona, Italy
| | - Marco Iannetta
- Infectious Disease Unit, Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Francesca Rizzo
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, 84084 Salerno, Italy
| | - Carlo Torti
- Infectious and Tropical Disease Unit, Department of Medical and Surgical Sciences, Magna Graecia University of Catanzaro, 88100 Catanzaro, Italy
| | - Maurizio Fumi
- UOC Patologia Clinica, AO San Pio Benevento, 82100 Benevento, Italy
| | - Morena d’Avenia
- UOSVD di Citopatologia e Screening, Department of Laboratory Medicines, 70131 Bari, Italy
| | - Stefano Brusa
- Department of Translational Medical Sciences, Università Federico II, 80138 Naples, Italy
| | - Francesca Greco
- UOC Microbiologia e Virologia, PO Cosenza, 87100 Cosenza, Italy
| | - Angela Menchise
- Microbiology and Virology Laboratory, A.O.R. San Carlo Potenza, 85100 Potenza, Italy
| | - Vittoria Letizia
- UOSD Genetics and Molecular Biology, AORN Sant’Anna e San Sebastiano di Caserta, 81100 Caserta, Italy
| | - Emilia Vaccaro
- Molecular Biology Units, AOU ‘S. Giovanni di Dio e Ruggi d’Aragona’ Università di Salerno, 84131 Salerno, Italy
| | | | | | - Sophie Testa
- Unit of Infectious Diseases, Azienda Socio Sanitaria Territoriale Cremona, 26100 Cremona, Italy
| | - Luca Carioti
- Department of Experimental Medicine, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Teresa Rocco
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry ‘Scuola Medica Salernitana’, University of Salerno, 84084 Salerno, Italy
| | | | - Annamaria Cattelan
- Infectious Diseases Unit, Azienda Ospedale Università di Padova, 35128 Padova, Italy
| | - Massimo Clementi
- Laboratory of Microbiology and Virology, Università “Vita-Salute” San Raffaele, 20158 Milan, Italy
| | - Loredana Sarmati
- Infectious Disease Unit, Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Agostino Riva
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20174 Milan, Italy
| | - Massimo Galli
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20174 Milan, Italy
| | - Spinello Antinori
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20174 Milan, Italy
| | - Gianguglielmo Zehender
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20174 Milan, Italy
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10
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Masilamani AP, Schulzki R, Yuan S, Haase IV, Kling E, Dewes F, Andrieux G, Börries M, Schnell O, Heiland DH, Schilling O, Ferrarese R, Carro MS. Calpain-mediated cleavage generates a ZBTB18 N-terminal product that regulates HIF1A signaling and glioblastoma metabolism. iScience 2022; 25:104625. [PMID: 35800763 PMCID: PMC9253709 DOI: 10.1016/j.isci.2022.104625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 05/13/2022] [Accepted: 06/10/2022] [Indexed: 11/28/2022] Open
Affiliation(s)
- Anie P. Masilamani
- Department of Neurosurgery, Medical Center – University of Freiburg, Freiburg, Germany
| | - Rana Schulzki
- Department of Neurosurgery, Medical Center – University of Freiburg, Freiburg, Germany
| | - Shuai Yuan
- Department of Neurosurgery, Medical Center – University of Freiburg, Freiburg, Germany
| | - Ira V. Haase
- Department of Neurosurgery, Medical Center – University of Freiburg, Freiburg, Germany
| | - Eva Kling
- Department of Neurosurgery, Medical Center – University of Freiburg, Freiburg, Germany
| | - Franziska Dewes
- Department of Neurosurgery, Medical Center – University of Freiburg, Freiburg, Germany
| | - Geoffroy Andrieux
- Institute of Medical Bioinformatics and Systems Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Partner Site Freiburg, Freiburg, Germany
| | - Melanie Börries
- Institute of Medical Bioinformatics and Systems Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Partner Site Freiburg, Freiburg, Germany
| | - Oliver Schnell
- Department of Neurosurgery, Medical Center – University of Freiburg, Freiburg, Germany
| | - Dieter H. Heiland
- Department of Neurosurgery, Medical Center – University of Freiburg, Freiburg, Germany
- German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Partner Site Freiburg, Freiburg, Germany
| | - Oliver Schilling
- German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Partner Site Freiburg, Freiburg, Germany
- Institute of Clinical Pathology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Roberto Ferrarese
- Department of Neurosurgery, Medical Center – University of Freiburg, Freiburg, Germany
| | - Maria S. Carro
- Department of Neurosurgery, Medical Center – University of Freiburg, Freiburg, Germany
- Corresponding author
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11
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Sisti S, Diotti RA, Caputo V, Libera M, Ferrarese R, Carletti S, Rizzi P, Cirillo DM, Lorenzin G, Clementi M, Mancini N, Clementi N. Identification of a novel mutation involved in colistin resistance in Klebsiella pneumoniae through Next-Generation Sequencing (NGS) based approaches. New Microbiol 2022; 45:199-209. [PMID: 35920875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 08/02/2022] [Indexed: 06/15/2023]
Abstract
The spread of multidrug-resistant (MDR) K. pneumoniae carbapenemase-producing bacteria (KPC) is one of the most serious threats to global public health. Due to the limited antibiotic options, colis- tin often represents a therapeutic choice. In this study, we performed Whole-Genome Sequencing (WGS) by Illumina and Nanopore platforms on four colistin-resistant K. pneumoniae isolates (CoRKp) to explore the resistance profile and the mutations involved in colistin resistance. Mapping reads with reference sequence of the most com- mon genes involved in colistin resistance did not show the presence of mobile colistin resistance (mcr) genes in all CoRKp. Complete or partial deletions of mgrB gene were observed in three out of four CoRKp, while in one CoRKp the mutation V24G on phoQ was identified. Complementation assay with proper wild type genes restored colistin susceptibility, validating the role of the amino acid substitution V24G and, as already described in the literature, confirming the key role of mgrB alterations in colistin resistance. In conclusion, this study allowed the identification of the novel mutation on phoQ gene involved in colistin resistance phenotype.
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Affiliation(s)
- Sofia Sisti
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
| | - Roberta A. Diotti
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
| | - Valeria Caputo
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
| | - Martina Libera
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
| | - Roberto Ferrarese
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
| | - Silvia Carletti
- Laboratory of Microbiology and Virology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Pierfrancesco Rizzi
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
| | | | - Giovanni Lorenzin
- Emerging Bacterial Pathogens Unit, San Raffaele Scientific Institute, Milan, Italy
| | - Massimo Clementi
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
- Laboratory of Microbiology and Virology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Nicasio Mancini
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
- Laboratory of Microbiology and Virology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Nicola Clementi
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
- Laboratory of Microbiology and Virology, IRCCS San Raffaele Scientific Institute, Milan, Italy
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12
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Criscuolo E, Giuliani B, Ferrari D, Ferrarese R, Diotti RA, Clementi M, Mancini N, Clementi N. Proper Selection of In Vitro Cell Model Affects the Characterization of the Neutralizing Antibody Response against SARS-CoV-2. Viruses 2022; 14:1232. [PMID: 35746703 PMCID: PMC9230092 DOI: 10.3390/v14061232] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 06/01/2022] [Accepted: 06/05/2022] [Indexed: 11/26/2022] Open
Abstract
(1) Background: Our aim is the evaluation of the neutralizing activity of BNT162b2 mRNA vaccine-induced antibodies in different in vitro cellular models, as this still represents one of the surrogates of protection against SARS-CoV-2 viral variants. (2) Methods: The entry mechanisms of SARS-CoV-2 in three cell lines (Vero E6, Vero E6/TMPRSS2 and Calu-3) were evaluated with both pseudoviruses and whole virus particles. The neutralizing capability of sera collected from vaccinated subjects was characterized through cytopathic effects and Real-Time RT PCR. (3) Results: In contrast to Vero E6 and Vero E6/TMPRSS2, Calu-3 allowed the evaluation of both viral entry mechanisms, resembling what occurs during natural infection. The choice of an appropriate cellular model can decisively influence the determination of the neutralizing activity of antibodies against SARS-CoV-2 variants. Indeed, the lack of correlation between neutralizing data in Calu-3 and Vero E6 demonstrated that testing the antibody inhibitory activity by using a single cell model possibly results in an inaccurate characterization. (4) Conclusions: Cellular systems allowing only one of the two viral entry pathways may not fully reflect the neutralizing activity of vaccine-induced antibodies moving increasingly further away from possible correlates of protection from SARS-CoV-2 infection.
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Affiliation(s)
- Elena Criscuolo
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, 20158 Milan, Italy; (E.C.); (B.G.); (R.F.); (R.A.D.); (M.C.); (N.M.)
| | - Benedetta Giuliani
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, 20158 Milan, Italy; (E.C.); (B.G.); (R.F.); (R.A.D.); (M.C.); (N.M.)
| | - Davide Ferrari
- SCVSA Department, University of Parma, 43121 Parma, Italy;
| | - Roberto Ferrarese
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, 20158 Milan, Italy; (E.C.); (B.G.); (R.F.); (R.A.D.); (M.C.); (N.M.)
| | - Roberta A. Diotti
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, 20158 Milan, Italy; (E.C.); (B.G.); (R.F.); (R.A.D.); (M.C.); (N.M.)
| | - Massimo Clementi
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, 20158 Milan, Italy; (E.C.); (B.G.); (R.F.); (R.A.D.); (M.C.); (N.M.)
- IRCCS Ospedale San Raffaele, 20158 Milan, Italy
| | - Nicasio Mancini
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, 20158 Milan, Italy; (E.C.); (B.G.); (R.F.); (R.A.D.); (M.C.); (N.M.)
- IRCCS Ospedale San Raffaele, 20158 Milan, Italy
| | - Nicola Clementi
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, 20158 Milan, Italy; (E.C.); (B.G.); (R.F.); (R.A.D.); (M.C.); (N.M.)
- IRCCS Ospedale San Raffaele, 20158 Milan, Italy
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13
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Ferrarese R, Carro MS. Neural networks help zebrafish to step up as a model for efficient drug screening in glioblastoma. Neuro Oncol 2022; 24:739-740. [PMID: 35182417 PMCID: PMC9071326 DOI: 10.1093/neuonc/noac045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Roberto Ferrarese
- Department of Neurosurgery, Medical Center—University of Freiburg, Freiburg, Germany
| | - Maria Stella Carro
- Corresponding Author: Maria Stella Carro, PhD, Department of Neurosurgery, Medical Center—University of Freiburg, Germany, Breisacherstraße 64, 79106 Freiburg, Germany ()
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14
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Sposito B, Broggi A, Pandolfi L, Crotta S, Clementi N, Ferrarese R, Sisti S, Criscuolo E, Spreafico R, Long JM, Ambrosi A, Liu E, Frangipane V, Saracino L, Bozzini S, Marongiu L, Facchini FA, Bottazzi A, Fossali T, Colombo R, Clementi M, Tagliabue E, Chou J, Pontiroli AE, Meloni F, Wack A, Mancini N, Zanoni I. The interferon landscape along the respiratory tract impacts the severity of COVID-19. Cell 2021; 184:4953-4968.e16. [PMID: 34492226 PMCID: PMC8373821 DOI: 10.1016/j.cell.2021.08.016] [Citation(s) in RCA: 139] [Impact Index Per Article: 46.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 07/19/2021] [Accepted: 08/12/2021] [Indexed: 01/08/2023]
Abstract
Severe coronavirus disease 2019 (COVID-19) is characterized by overproduction of immune mediators, but the role of interferons (IFNs) of the type I (IFN-I) or type III (IFN-III) families remains debated. We scrutinized the production of IFNs along the respiratory tract of COVID-19 patients and found that high levels of IFN-III, and to a lesser extent IFN-I, characterize the upper airways of patients with high viral burden but reduced disease risk or severity. Production of specific IFN-III, but not IFN-I, members denotes patients with a mild pathology and efficiently drives the transcription of genes that protect against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). In contrast, compared to subjects with other infectious or noninfectious lung pathologies, IFNs are overrepresented in the lower airways of patients with severe COVID-19 that exhibit gene pathways associated with increased apoptosis and decreased proliferation. Our data demonstrate a dynamic production of IFNs in SARS-CoV-2-infected patients and show IFNs play opposing roles at distinct anatomical sites.
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Affiliation(s)
- Benedetta Sposito
- Harvard Medical School, Boston Children's Hospital, Division of Immunology, Boston, MA 02115, USA; Department of Biotechnology and Biosciences and Ph.D. Program in Molecular and Translational Medicine (DIMET), University of Milano - Bicocca, Milan 20100, Italy
| | - Achille Broggi
- Harvard Medical School, Boston Children's Hospital, Division of Immunology, Boston, MA 02115, USA.
| | - Laura Pandolfi
- Respiratory Disease Unit IRCCS San Matteo Hospital Foundation, Pavia 27100, Italy
| | - Stefania Crotta
- Immunoregulation Laboratory, The Francis Crick Institute, London NW1 1AT, UK
| | - Nicola Clementi
- Laboratory of Medical Microbiology and Virology, Vita-Salute San Raffaele University, Milan 20100, Italy; IRCCS San Raffaele Hospital, Milan 20100, Italy
| | - Roberto Ferrarese
- Laboratory of Medical Microbiology and Virology, Vita-Salute San Raffaele University, Milan 20100, Italy
| | - Sofia Sisti
- Laboratory of Medical Microbiology and Virology, Vita-Salute San Raffaele University, Milan 20100, Italy
| | - Elena Criscuolo
- Laboratory of Medical Microbiology and Virology, Vita-Salute San Raffaele University, Milan 20100, Italy
| | - Roberto Spreafico
- Institute for Quantitative and Computational Biosciences, University of California, Los Angeles, Los Angeles, CA, USA
| | - Jaclyn M Long
- Harvard Medical School, Boston Children's Hospital, Division of Immunology, Boston, MA 02115, USA
| | - Alessandro Ambrosi
- Faculty of Medicine and Surgery, Vita-Salute San Raffaele University, Milan 20100, Italy
| | - Enju Liu
- Harvard Medical School, Boston Children's Hospital, Division of Gastroenterology, Boston, MA 02115, USA; Institutional Centers for Clinical and Translational Research, Boston Children's Hospital, Boston, MA 02115, USA
| | - Vanessa Frangipane
- Respiratory Disease Unit IRCCS San Matteo Hospital Foundation, Pavia 27100, Italy
| | - Laura Saracino
- Respiratory Disease Unit IRCCS San Matteo Hospital Foundation, Pavia 27100, Italy
| | - Sara Bozzini
- Respiratory Disease Unit IRCCS San Matteo Hospital Foundation, Pavia 27100, Italy
| | - Laura Marongiu
- Department of Biotechnology and Biosciences and Ph.D. Program in Molecular and Translational Medicine (DIMET), University of Milano - Bicocca, Milan 20100, Italy
| | - Fabio A Facchini
- Department of Biotechnology and Biosciences and Ph.D. Program in Molecular and Translational Medicine (DIMET), University of Milano - Bicocca, Milan 20100, Italy
| | - Andrea Bottazzi
- Department of Anesthesia and Critical Care Medicine, IRCCS Policlinico San Matteo Foundation, Pavia 27100, Italy
| | - Tommaso Fossali
- Division of Anesthesiology and Intensive Care, ASST Fatebenefratelli Sacco, Luigi Sacco Hospital, University of Milan, Milan 20100, Italy
| | - Riccardo Colombo
- Division of Anesthesiology and Intensive Care, ASST Fatebenefratelli Sacco, Luigi Sacco Hospital, University of Milan, Milan 20100, Italy
| | - Massimo Clementi
- Laboratory of Medical Microbiology and Virology, Vita-Salute San Raffaele University, Milan 20100, Italy; IRCCS San Raffaele Hospital, Milan 20100, Italy
| | - Elena Tagliabue
- Value-based healthcare unit, IRCCS Multimedica, Milan 20100, Italy
| | - Janet Chou
- Harvard Medical School, Boston Children's Hospital, Division of Immunology, Boston, MA 02115, USA
| | | | - Federica Meloni
- Respiratory Disease Unit IRCCS San Matteo Hospital Foundation, Pavia 27100, Italy; Department of Internal Medicine and Pharmacology, University of Pavia, Pavia 27100, Italy
| | - Andreas Wack
- Immunoregulation Laboratory, The Francis Crick Institute, London NW1 1AT, UK
| | - Nicasio Mancini
- Laboratory of Medical Microbiology and Virology, Vita-Salute San Raffaele University, Milan 20100, Italy; IRCCS San Raffaele Hospital, Milan 20100, Italy.
| | - Ivan Zanoni
- Harvard Medical School, Boston Children's Hospital, Division of Immunology, Boston, MA 02115, USA; Harvard Medical School, Boston Children's Hospital, Division of Gastroenterology, Boston, MA 02115, USA.
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15
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Marques C, Unterkircher T, Kroon P, Oldrini B, Izzo A, Dramaretska Y, Ferrarese R, Kling E, Schnell O, Nelander S, Wagner EF, Bakiri L, Gargiulo G, Carro MS, Squatrito M. NF1 regulates mesenchymal glioblastoma plasticity and aggressiveness through the AP-1 transcription factor FOSL1. eLife 2021; 10:e64846. [PMID: 34399888 PMCID: PMC8370767 DOI: 10.7554/elife.64846] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 07/18/2021] [Indexed: 12/22/2022] Open
Abstract
The molecular basis underlying glioblastoma (GBM) heterogeneity and plasticity is not fully understood. Using transcriptomic data of human patient-derived brain tumor stem cell lines (BTSCs), classified based on GBM-intrinsic signatures, we identify the AP-1 transcription factor FOSL1 as a key regulator of the mesenchymal (MES) subtype. We provide a mechanistic basis to the role of the neurofibromatosis type 1 gene (NF1), a negative regulator of the RAS/MAPK pathway, in GBM mesenchymal transformation through the modulation of FOSL1 expression. Depletion of FOSL1 in NF1-mutant human BTSCs and Kras-mutant mouse neural stem cells results in loss of the mesenchymal gene signature and reduction in stem cell properties and in vivo tumorigenic potential. Our data demonstrate that FOSL1 controls GBM plasticity and aggressiveness in response to NF1 alterations.
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Affiliation(s)
- Carolina Marques
- Seve Ballesteros Foundation Brain Tumor Group, Spanish National Cancer Research CentreMadridSpain
| | | | - Paula Kroon
- Seve Ballesteros Foundation Brain Tumor Group, Spanish National Cancer Research CentreMadridSpain
| | - Barbara Oldrini
- Seve Ballesteros Foundation Brain Tumor Group, Spanish National Cancer Research CentreMadridSpain
| | - Annalisa Izzo
- Department of Neurosurgery, Faculty of Medicine FreiburgFreiburgGermany
| | - Yuliia Dramaretska
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC)BerlinGermany
| | - Roberto Ferrarese
- Department of Neurosurgery, Faculty of Medicine FreiburgFreiburgGermany
| | - Eva Kling
- Department of Neurosurgery, Faculty of Medicine FreiburgFreiburgGermany
| | - Oliver Schnell
- Department of Neurosurgery, Faculty of Medicine FreiburgFreiburgGermany
| | - Sven Nelander
- Dept of Immunology, Genetics and Pathology and Science for Life Laboratory, Uppsala University, RudbecklaboratorietUppsalaSweden
- Science for Life Laboratory, Uppsala University, RudbecklaboratorietUppsalaSweden
| | - Erwin F Wagner
- Genes, Development, and Disease Group, Spanish National Cancer Research CentreMadridSpain
- Laboratory Medicine Department, Medical University of ViennaViennaAustria
- Dermatology Department, Medical University of ViennaViennaAustria
| | - Latifa Bakiri
- Genes, Development, and Disease Group, Spanish National Cancer Research CentreMadridSpain
- Laboratory Medicine Department, Medical University of ViennaViennaAustria
| | - Gaetano Gargiulo
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC)BerlinGermany
| | | | - Massimo Squatrito
- Seve Ballesteros Foundation Brain Tumor Group, Spanish National Cancer Research CentreMadridSpain
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16
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Castelli M, Baj A, Criscuolo E, Ferrarese R, Diotti RA, Sampaolo M, Novazzi F, Dalla Gasperina D, Focosi D, Ferrari D, Locatelli M, Clementi M, Clementi N, Maggi F, Mancini N. Characterization of a Lineage C.36 SARS-CoV-2 Isolate with Reduced Susceptibility to Neutralization Circulating in Lombardy, Italy. Viruses 2021; 13:v13081514. [PMID: 34452380 PMCID: PMC8402759 DOI: 10.3390/v13081514] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 12/29/2022] Open
Abstract
SARS-CoV-2 spike is evolving to maximize transmissibility and evade the humoral response. The massive genomic sequencing of SARS-CoV-2 isolates has led to the identification of single-point mutations and deletions, often having the recurrence of hotspots, associated with advantageous phenotypes. We report the isolation and molecular characterization of a SARS-CoV-2 strain, belonging to a lineage (C.36) not previously associated with concerning traits, which shows decreased susceptibility to vaccine sera neutralization.
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Affiliation(s)
- Matteo Castelli
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, 20132 Milan, Italy; (M.C.); (E.C.); (R.F.); (R.A.D.); (M.C.); (N.C.)
| | - Andreina Baj
- Laboratory of Microbiology, ASST Sette Laghi, 21100 Varese, Italy; (A.B.); (F.N.)
- Department of Medicine and Surgery, University of Insubria, 21100 Varese, Italy;
| | - Elena Criscuolo
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, 20132 Milan, Italy; (M.C.); (E.C.); (R.F.); (R.A.D.); (M.C.); (N.C.)
| | - Roberto Ferrarese
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, 20132 Milan, Italy; (M.C.); (E.C.); (R.F.); (R.A.D.); (M.C.); (N.C.)
| | - Roberta A. Diotti
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, 20132 Milan, Italy; (M.C.); (E.C.); (R.F.); (R.A.D.); (M.C.); (N.C.)
| | - Michela Sampaolo
- Laboratory of Microbiology and Virology, IRCCS Ospedale San Raffaele, 20132 Milan, Italy;
| | - Federica Novazzi
- Laboratory of Microbiology, ASST Sette Laghi, 21100 Varese, Italy; (A.B.); (F.N.)
| | - Daniela Dalla Gasperina
- Department of Medicine and Surgery, University of Insubria, 21100 Varese, Italy;
- Internal Medicine Unit, ASST Sette Laghi, 21100 Varese, Italy
| | - Daniele Focosi
- North-Western Tuscany Blood Bank, Pisa University Hospital, 56127 Pisa, Italy;
| | - Davide Ferrari
- SCVSA Department, University of Parma, 43121 Parma, Italy;
| | - Massimo Locatelli
- Laboratory Medicine Service, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy;
| | - Massimo Clementi
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, 20132 Milan, Italy; (M.C.); (E.C.); (R.F.); (R.A.D.); (M.C.); (N.C.)
- Laboratory of Microbiology and Virology, IRCCS Ospedale San Raffaele, 20132 Milan, Italy;
| | - Nicola Clementi
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, 20132 Milan, Italy; (M.C.); (E.C.); (R.F.); (R.A.D.); (M.C.); (N.C.)
- Laboratory of Microbiology and Virology, IRCCS Ospedale San Raffaele, 20132 Milan, Italy;
| | - Fabrizio Maggi
- Laboratory of Microbiology, ASST Sette Laghi, 21100 Varese, Italy; (A.B.); (F.N.)
- Department of Medicine and Surgery, University of Insubria, 21100 Varese, Italy;
- Correspondence: (F.M.); (N.M.)
| | - Nicasio Mancini
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, 20132 Milan, Italy; (M.C.); (E.C.); (R.F.); (R.A.D.); (M.C.); (N.C.)
- Laboratory of Microbiology and Virology, IRCCS Ospedale San Raffaele, 20132 Milan, Italy;
- Correspondence: (F.M.); (N.M.)
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17
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Nozza S, Ferrarese R, Poli A, Galli L, Sampaolo M, Bigoloni A, Galli A, Muccini C, Spagnuolo V, Lazzarin A, Clementi M, Mancini N, Castagna A. Analysis of the faecal microbiome during analytical treatment interruption in people with chronic HIV infection and long-lasting virological suppression (APACHE study). J Antimicrob Chemother 2021; 75:2700-2702. [PMID: 32542322 DOI: 10.1093/jac/dkaa231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- S Nozza
- San Raffaele Scientific Institute, Milan, Italy
| | - R Ferrarese
- San Raffaele Scientific Institute, Milan, Italy
| | - A Poli
- San Raffaele Scientific Institute, Milan, Italy
| | - L Galli
- San Raffaele Scientific Institute, Milan, Italy
| | - M Sampaolo
- San Raffaele Scientific Institute, Milan, Italy
| | - A Bigoloni
- San Raffaele Scientific Institute, Milan, Italy
| | - A Galli
- San Raffaele Scientific Institute, Milan, Italy
| | - C Muccini
- University Vita-Salute San Raffaele, Milan, Italy
| | - V Spagnuolo
- University Vita-Salute San Raffaele, Milan, Italy
| | - A Lazzarin
- San Raffaele Scientific Institute, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - M Clementi
- San Raffaele Scientific Institute, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - N Mancini
- San Raffaele Scientific Institute, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - A Castagna
- San Raffaele Scientific Institute, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
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18
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Sposito B, Broggi A, Pandolfi L, Crotta S, Ferrarese R, Sisti S, Clementi N, Ambrosi A, Liu E, Frangipane V, Saracino L, Marongiu L, Facchini FA, Bottazzi A, Fossali T, Colombo R, Clementi M, Tagliabue E, Pontiroli AE, Meloni F, Wack A, Mancini N, Zanoni I. Severity of SARS-CoV-2 infection as a function of the interferon landscape across the respiratory tract of COVID-19 patients. bioRxiv 2021:2021.03.30.437173. [PMID: 33821280 PMCID: PMC8020981 DOI: 10.1101/2021.03.30.437173] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The COVID-19 outbreak driven by SARS-CoV-2 has caused more than 2.5 million deaths globally, with the most severe cases characterized by over-exuberant production of immune-mediators, the nature of which is not fully understood. Interferons of the type I (IFN-I) or type III (IFN-III) families are potent antivirals, but their role in COVID-19 remains debated. Our analysis of gene and protein expression along the respiratory tract shows that IFNs, especially IFN-III, are over-represented in the lower airways of patients with severe COVID-19, while high levels of IFN-III, and to a lesser extent IFN-I, characterize the upper airways of patients with high viral burden but reduced disease risk or severity; also, IFN expression varies with abundance of the cell types that produce them. Our data point to a dynamic process of inter- and intra-family production of IFNs in COVID-19, and suggest that IFNs play opposing roles at distinct anatomical sites.
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Affiliation(s)
- Benedetta Sposito
- Harvard Medical School, Boston Children’s Hospital, Division of Immunology, Boston, US
- Dep. of Biotechnology and Biosciences and Ph.D. program in Molecular and Translational Medicine (DIMET), University of Milano - Bicocca, Milan, Italy
| | - Achille Broggi
- Harvard Medical School, Boston Children’s Hospital, Division of Immunology, Boston, US
| | - Laura Pandolfi
- Respiratory Disease Unit IRCCS San Matteo Hospital Foundation, Pavia, Italy
| | - Stefania Crotta
- Immunoregulation Laboratory, The Francis Crick Institute, London, UK
| | - Roberto Ferrarese
- Laboratory of Medical Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
| | - Sofia Sisti
- Laboratory of Medical Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
| | - Nicola Clementi
- Laboratory of Medical Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
- IRCCS San Raffaele Hospital, Milan, Italy
| | - Alessandro Ambrosi
- Faculty of Medicine and Surgery, Vita-Salute San Raffaele University, Milan, Italy
| | - Enju Liu
- Harvard Medical School, Boston Children’s Hospital, Division of Gastroenterology, Boston, US
- Institutional Centers for Clinical and Translational Research, Boston Children’s Hospital, Boston, MA, USA
| | - Vanessa Frangipane
- Respiratory Disease Unit IRCCS San Matteo Hospital Foundation, Pavia, Italy
| | - Laura Saracino
- Respiratory Disease Unit IRCCS San Matteo Hospital Foundation, Pavia, Italy
| | - Laura Marongiu
- Dep. of Biotechnology and Biosciences and Ph.D. program in Molecular and Translational Medicine (DIMET), University of Milano - Bicocca, Milan, Italy
| | - Fabio A Facchini
- Dep. of Biotechnology and Biosciences and Ph.D. program in Molecular and Translational Medicine (DIMET), University of Milano - Bicocca, Milan, Italy
| | - Andrea Bottazzi
- Department of Anesthesia and Critical Care Medicine, IRCCS Policlinico San Matteo Foundation, Pavia, Italy
| | - Tommaso Fossali
- Division of Anesthesiology and Intensive Care, ASST Fatebenefratelli Sacco, Luigi Sacco Hospital, University of Milan, Milan, Italy
| | - Riccardo Colombo
- Division of Anesthesiology and Intensive Care, ASST Fatebenefratelli Sacco, Luigi Sacco Hospital, University of Milan, Milan, Italy
| | - Massimo Clementi
- Laboratory of Medical Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
- IRCCS San Raffaele Hospital, Milan, Italy
| | | | | | - Federica Meloni
- Respiratory Disease Unit IRCCS San Matteo Hospital Foundation, Pavia, Italy
- Department of Internal Medicine and Pharmacology, University of Pavia, Pavia, Italy
| | - Andreas Wack
- Immunoregulation Laboratory, The Francis Crick Institute, London, UK
| | - Nicasio Mancini
- Laboratory of Medical Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
- IRCCS San Raffaele Hospital, Milan, Italy
| | - Ivan Zanoni
- Harvard Medical School, Boston Children’s Hospital, Division of Immunology, Boston, US
- Harvard Medical School, Boston Children’s Hospital, Division of Gastroenterology, Boston, US
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19
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Criscuolo E, Diotti RA, Ferrarese R, Alippi C, Viscardi G, Signorelli C, Mancini N, Clementi M, Clementi N. Fast inactivation of SARS-CoV-2 by UV-C and ozone exposure on different materials. Emerg Microbes Infect 2021; 10:206-210. [PMID: 33399524 PMCID: PMC7872580 DOI: 10.1080/22221751.2021.1872354] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The extremely rapid spread of the SARS-CoV-2 has already resulted in more than 1 million reported deaths of coronavirus disease 2019 (COVID-19). The ability of infectious particles to persist on environmental surfaces is potentially considered a factor for viral spreading. Therefore, limiting viral diffusion in public environments should be achieved with correct disinfection of objects, tissues, and clothes. This study proves how two widespread disinfection systems, short-wavelength ultraviolet light (UV-C) and ozone (O3), are active in vitro on different commonly used materials. The development of devices equipped with UV-C, or ozone generators, may prevent the virus from spreading in public places.
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Affiliation(s)
- Elena Criscuolo
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
| | - Roberta A Diotti
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
| | - Roberto Ferrarese
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
| | - Cesare Alippi
- Dipartimento di Elettronica e Informazione, WEMSY Lab, Politecnico di Milano, Italy
| | - Gabriele Viscardi
- Dipartimento di Elettronica e Informazione, WEMSY Lab, Politecnico di Milano, Italy
| | - Carlo Signorelli
- School of Medicine, Vita-Salute San Raffaele University, Milan, Italy
| | - Nicasio Mancini
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy.,Laboratory of Microbiology and Virology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Massimo Clementi
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy.,Laboratory of Microbiology and Virology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Nicola Clementi
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy.,Laboratory of Microbiology and Virology, IRCCS San Raffaele Scientific Institute, Milan, Italy
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20
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Mancini N, Clementi N, Ferrarese R, Ambrosi A, Tonelli M, Zangrillo A, Landoni G, Clementi M. Very high SARS-CoV-2 load at the emergency department presentation strongly predicts the risk of admission to the intensive care unit and death. Clin Chem Lab Med 2021; 59:e247-e250. [PMID: 33577724 DOI: 10.1515/cclm-2020-1709] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 12/22/2020] [Indexed: 12/24/2022]
Affiliation(s)
- Nicasio Mancini
- Laboratory of Medical Microbiology and Virology, University "Vita-Salute" San Raffaele, Milan, Italy
- Laboratory of Medical Microbiology and Virology, IRCCS San Raffaele Hospital, Milan, Italy
| | - Nicola Clementi
- Laboratory of Medical Microbiology and Virology, University "Vita-Salute" San Raffaele, Milan, Italy
- Laboratory of Medical Microbiology and Virology, IRCCS San Raffaele Hospital, Milan, Italy
| | - Roberto Ferrarese
- Laboratory of Medical Microbiology and Virology, University "Vita-Salute" San Raffaele, Milan, Italy
| | - Alessandro Ambrosi
- Laboratory of Medical Microbiology and Virology, University "Vita-Salute" San Raffaele, Milan, Italy
| | - Marco Tonelli
- Laboratory of Medical Microbiology and Virology, IRCCS San Raffaele Hospital, Milan, Italy
| | - Alberto Zangrillo
- Department of Anaesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Giovanni Landoni
- Department of Anaesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Massimo Clementi
- Laboratory of Medical Microbiology and Virology, University "Vita-Salute" San Raffaele, Milan, Italy
- Laboratory of Medical Microbiology and Virology, IRCCS San Raffaele Hospital, Milan, Italy
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21
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Ferrarese R, Zuppardo RA, Puzzono M, Mannucci A, Amato V, Ditonno I, Patricelli MG, Raucci AR, Clementi M, Elmore U, Rosati R, Testoni PA, Mancini N, Cavestro GM. Oral and Fecal Microbiota in Lynch Syndrome. J Clin Med 2020; 9:jcm9092735. [PMID: 32847083 PMCID: PMC7563889 DOI: 10.3390/jcm9092735] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/17/2020] [Accepted: 08/19/2020] [Indexed: 12/11/2022] Open
Abstract
Background: The role of microbiota in Lynch syndrome (LS) is still under debate. We compared oral and fecal microbiota of LS saliva and stool samples with normal healthy controls (NHC). Methods: Total DNA was purified from feces and saliva to amplify the V3–V4 region of the 16s rRNA gene. Sequences with a high-quality score and length >250 bp were used for taxonomic analysis with QIIME software. Results: Compared to NHC, LS fecal samples demonstrated a statistically significant increase of Bacteroidetes and Proteobacteria and a significant decrease of Firmicutes at the phylum level and of Ruminococcaceae at the family level. Moreover, LS oral samples exhibited a statistically significant increase of Veillonellaceae and Leptotrichiaceae and a statistically significant decrease of Pasteurellaceae. A beta-diversity index allowed differentiation of the two groups. Conclusions: A peculiar microbial signature is associated with LS, similar to that of sporadic colorectal cancer and Crohn’s disease. These data suggest a possible role of proinflammatory bacteria in tumor development in a condition of genetic predisposition, such as LS.
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Affiliation(s)
- Roberto Ferrarese
- Microbiology and Virology Unit, IRCCS Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy; (R.F.); (V.A.); (M.C.); (N.M.)
| | - Raffaella Alessia Zuppardo
- Division of Experimental Oncology, Gastroenterology and Gastrointestinal Endoscopy Unit, IRCCS Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy; (R.A.Z.); (M.P.); (P.A.T.)
| | - Marta Puzzono
- Division of Experimental Oncology, Gastroenterology and Gastrointestinal Endoscopy Unit, IRCCS Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy; (R.A.Z.); (M.P.); (P.A.T.)
| | - Alessandro Mannucci
- Vita-Salute San Raffaele University, 20132 Milan, Italy; (A.M.); (I.D.); (R.R.)
| | - Virginia Amato
- Microbiology and Virology Unit, IRCCS Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy; (R.F.); (V.A.); (M.C.); (N.M.)
| | - Ilaria Ditonno
- Vita-Salute San Raffaele University, 20132 Milan, Italy; (A.M.); (I.D.); (R.R.)
| | - Maria Grazia Patricelli
- Division of Genetics and Cell Biology and Laboratory of Clinical Molecular Biology and Cytogenetics, Unit of Genomics for Human Disease Diagnosis, IRCCS Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy; (M.G.P.); (A.R.R.)
| | - Annalisa Russo Raucci
- Division of Genetics and Cell Biology and Laboratory of Clinical Molecular Biology and Cytogenetics, Unit of Genomics for Human Disease Diagnosis, IRCCS Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy; (M.G.P.); (A.R.R.)
| | - Massimo Clementi
- Microbiology and Virology Unit, IRCCS Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy; (R.F.); (V.A.); (M.C.); (N.M.)
- Vita-Salute San Raffaele University, 20132 Milan, Italy; (A.M.); (I.D.); (R.R.)
| | - Ugo Elmore
- Department of Gastrointestinal Surgery, IRCCS Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy;
| | - Riccardo Rosati
- Vita-Salute San Raffaele University, 20132 Milan, Italy; (A.M.); (I.D.); (R.R.)
- Department of Gastrointestinal Surgery, IRCCS Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy;
| | - Pier Alberto Testoni
- Division of Experimental Oncology, Gastroenterology and Gastrointestinal Endoscopy Unit, IRCCS Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy; (R.A.Z.); (M.P.); (P.A.T.)
- Vita-Salute San Raffaele University, 20132 Milan, Italy; (A.M.); (I.D.); (R.R.)
| | - Nicasio Mancini
- Microbiology and Virology Unit, IRCCS Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy; (R.F.); (V.A.); (M.C.); (N.M.)
- Vita-Salute San Raffaele University, 20132 Milan, Italy; (A.M.); (I.D.); (R.R.)
| | - Giulia Martina Cavestro
- Division of Experimental Oncology, Gastroenterology and Gastrointestinal Endoscopy Unit, IRCCS Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy; (R.A.Z.); (M.P.); (P.A.T.)
- Vita-Salute San Raffaele University, 20132 Milan, Italy; (A.M.); (I.D.); (R.R.)
- Correspondence: ; Tel.: +39-022-643-5508
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22
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Clementi N, Ferrarese R, Criscuolo E, Diotti RA, Castelli M, Scagnolari C, Burioni R, Antonelli G, Clementi M, Mancini N. Interferon-β-1a Inhibition of Severe Acute Respiratory Syndrome-Coronavirus 2 In Vitro When Administered After Virus Infection. J Infect Dis 2020; 222:722-725. [PMID: 32559285 PMCID: PMC7337790 DOI: 10.1093/infdis/jiaa350] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 06/15/2020] [Indexed: 12/23/2022] Open
Abstract
The ongoing coronavirus disease 2019 pandemic has forced the clinical and scientific community to try drug repurposing of existing antiviral agents as a quick option against severe acute respiratory syndrome–coronavirus 2 (SARS-CoV-2). Under this scenario, interferon (IFN) β-1a, whose antiviral potential is already known, and which is a drug currently used in the clinical management of multiple sclerosis, may represent as a potential candidate. In this report, we demonstrate that IFN-β-1a was highly effective in inhibiting in vitro SARS-CoV-2 replication at clinically achievable concentration when administered after virus infection.
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Affiliation(s)
- Nicola Clementi
- Laboratory of Microbiology and Virology, Università Vita-Salute San Raffaele, Milan, Italy.,Laboratory of Microbiology and Virology, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Roberto Ferrarese
- Laboratory of Microbiology and Virology, Università Vita-Salute San Raffaele, Milan, Italy
| | - Elena Criscuolo
- Laboratory of Microbiology and Virology, Università Vita-Salute San Raffaele, Milan, Italy
| | - Roberta Antonia Diotti
- Laboratory of Microbiology and Virology, Università Vita-Salute San Raffaele, Milan, Italy
| | - Matteo Castelli
- Laboratory of Microbiology and Virology, Università Vita-Salute San Raffaele, Milan, Italy
| | - Carolina Scagnolari
- Laboratory of Virology, Department of Molecular Medicine, and Institute Pasteur Italia-Cenci Bolognetti Foundation, Sapienza University, Rome, Italy
| | - Roberto Burioni
- Laboratory of Microbiology and Virology, Università Vita-Salute San Raffaele, Milan, Italy
| | - Guido Antonelli
- Laboratory of Virology, Department of Molecular Medicine, and Institute Pasteur Italia-Cenci Bolognetti Foundation, Sapienza University, Rome, Italy
| | - Massimo Clementi
- Laboratory of Microbiology and Virology, Università Vita-Salute San Raffaele, Milan, Italy.,Laboratory of Microbiology and Virology, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Nicasio Mancini
- Laboratory of Microbiology and Virology, Università Vita-Salute San Raffaele, Milan, Italy.,Laboratory of Microbiology and Virology, IRCCS Ospedale San Raffaele, Milan, Italy
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Clementi N, Criscuolo E, Diotti RA, Ferrarese R, Castelli M, Dagna L, Burioni R, Clementi M, Mancini N. Combined Prophylactic and Therapeutic Use Maximizes Hydroxychloroquine Anti-SARS-CoV-2 Effects in vitro. Front Microbiol 2020; 11:1704. [PMID: 32754147 PMCID: PMC7365881 DOI: 10.3389/fmicb.2020.01704] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [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: 04/09/2020] [Accepted: 06/29/2020] [Indexed: 12/27/2022] Open
Abstract
While the SARS-CoV-2 pandemic is heavily hitting the world, it is of extreme importance that significant in vitro observations guide the quick set up of clinical trials. In this study, we evidence that the anti-SARS-CoV2 activity of a clinically achievable hydroxychloroquine concentration is maximized only when administered before and after the infection of Vero E6 and Caco-2 cells. This suggests that only a combined prophylactic and therapeutic use of hydroxychloroquine may be effective in limiting viral replication in patients.
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Affiliation(s)
- Nicola Clementi
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy.,Laboratory of Microbiology and Virology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Elena Criscuolo
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
| | - Roberta Antonia Diotti
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
| | - Roberto Ferrarese
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
| | - Matteo Castelli
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
| | - Lorenzo Dagna
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases (UnIRAR), IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Roberto Burioni
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy
| | - Massimo Clementi
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy.,Laboratory of Microbiology and Virology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Nicasio Mancini
- Laboratory of Microbiology and Virology, Vita-Salute San Raffaele University, Milan, Italy.,Laboratory of Microbiology and Virology, IRCCS San Raffaele Scientific Institute, Milan, Italy
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Clementi N, Ferrarese R, Tonelli M, Amato V, Racca S, Locatelli M, Lippi G, Silvestri G, Clementi M, Mancini N. Lower nasopharyngeal viral load during the latest phase of COVID-19 pandemic in a Northern Italy University Hospital. Clin Chem Lab Med 2020; 58:1573-1577. [PMID: 32598306 DOI: 10.1515/cclm-2020-0815] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 06/04/2020] [Indexed: 12/13/2022]
Abstract
Objectives A milder clinical course of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection has been anecdotally reported over the latest phase of COVID-19 pandemic in Italy. Several factors may contribute to this observation, including the effect of lockdown, social distancing, lower humidity, lower air pollution, and potential changes in the intrinsic pathogenicity of the virus. In this regard, the clinical severity of COVID-19 could be attenuated by mutations in SARS-CoV-2 genome that decrease its virulence, as well as by lower virus inocula. Methods In this pilot study, we compared the reverse transcription polymerase chain reaction (RT-PCR) amplification profile of 100 nasopharyngeal swabs consecutively collected in April, during the peak of SARS-CoV-2 epidemic, to that of 100 swabs collected using the same procedure in May. Results The mean Ct value of positive samples collected in May was significantly higher than that of samples collected in the previous period (ORF 1a/b gene: 31.85 ± 0.32 vs. 28.37 ± 0.5, p<0.001; E gene: 33.76 ± 0.38 vs. 29.79 ± 0.63, p<0.001), suggesting a lower viral load at the time of sampling. No significant differences were observed between male and females in the two periods, whilst higher viral loads were found in (i) patients over 60-years old, and (ii) patients that experienced severe COVID-19 during the early stages of the pandemic. Conclusions This pilot study prompts further investigation on the correlation between SARS-CoV-2 load and different clinical manifestation of COVID-19 during different phases of the pandemic. Laboratories should consider reporting quantitative viral load data in the molecular diagnosis of SARS-CoV-2 infection.
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Affiliation(s)
- Nicola Clementi
- Laboratory of Medical Microbiology and Virology, University "Vita-Salute" San Raffaele, Via Olgettina 58, 20132 Milan, Italy
- Laboratory of Medical Microbiology and Virology, IRCCS San Raffaele Hospital, Milan, Italy
| | - Roberto Ferrarese
- Laboratory of Medical Microbiology and Virology, University "Vita-Salute" San Raffaele, Via Olgettina 58, 20132 Milan, Italy
| | - Marco Tonelli
- Laboratory of Medical Microbiology and Virology, University "Vita-Salute" San Raffaele, Via Olgettina 58, 20132 Milan, Italy
| | - Virginia Amato
- Laboratory of Medical Microbiology and Virology, University "Vita-Salute" San Raffaele, Via Olgettina 58, 20132 Milan, Italy
| | - Sara Racca
- Laboratory of Medical Microbiology and Virology, IRCCS San Raffaele Hospital, Milan, Italy
| | - Massimo Locatelli
- Laboratory Medicine Service, IRCCS San Raffaele Hospital, Milan, Italy
| | - Giuseppe Lippi
- Section of Clinical Biochemistry, University of Verona, Verona, Italy
| | - Guido Silvestri
- Division of Microbiology and Immunology, Yerkes National Primate Research Center, Emory University, Atlanta, GA, USA
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - Massimo Clementi
- Laboratory of Medical Microbiology and Virology, University "Vita-Salute" San Raffaele, Via Olgettina 58, 20132 Milan, Italy
- Laboratory of Medical Microbiology and Virology, IRCCS San Raffaele Hospital, Milan, Italy
| | - Nicasio Mancini
- Laboratory of Medical Microbiology and Virology, University "Vita-Salute" San Raffaele, Via Olgettina 58, 20132 Milan, Italy
- Laboratory of Medical Microbiology and Virology, IRCCS San Raffaele Hospital, Milan, Italy
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Pederzoli F, Ferrarese R, Amato V, Locatelli I, Alchera E, Lucianò R, Nebuloni M, Briganti A, Gallina A, Colombo R, Necchi A, Clementi M, Montorsi F, Mancini N, Salonia A, Alfano M. Sex-specific Alterations in the Urinary and Tissue Microbiome in Therapy-naïve Urothelial Bladder Cancer Patients. Eur Urol Oncol 2020; 3:784-788. [PMID: 32345542 DOI: 10.1016/j.euo.2020.04.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 03/29/2020] [Accepted: 04/06/2020] [Indexed: 12/16/2022]
Abstract
Comprehensive characterization of the urinary and urothelium-bound microbiomes in bladder cancer (BCa) and healthy state is essential to understand how these local microbiomes may play a role in BCa tumorigenesis and response to therapy, as well as to explain sex-based differences in BCa pathobiology. Performing 16 s rDNA microbiome analysis on 166 samples (urine and paired bladder tissues) from therapy-naïve BCa patients undergoing radical cystectomy and healthy controls, we defined (1) sex-specific microbiome differences in the urine and bladder tissue, and (2) representativeness of the tissue microenvironment by the voided urinary microbiome. The genus Klebsiella was more common in the urine of female BCa patients versus healthy controls, while no clinically relevant bacteria were found differently enriched in men. In tissues, the genus Burkholderia was more abundant in the neoplastic versus the non-neoplastic tissue in both sexes, suggesting a potential role in BCa pathobiology. Lastly, we found that the urinary microbiome shares >80% of the bacterial families present in the paired bladder tissue, making the urinary microbiome a fair proxy of the tissue bacterial environment. PATIENT SUMMARY: We identified specific bacteria present in the urine and tissues of male and female bladder cancer patients. These novel data represent a first step toward understanding the influence of the bladder microbiome on the development of bladder cancer and on the response to intravesical and systemic therapies.
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Affiliation(s)
- Filippo Pederzoli
- Division of Experimental Oncology/Unit of Urology, Urological Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Roberto Ferrarese
- Laboratory of Microbiology and Virology, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Virginia Amato
- Laboratory of Microbiology and Virology, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Irene Locatelli
- Division of Experimental Oncology/Unit of Urology, Urological Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Elisa Alchera
- Division of Experimental Oncology/Unit of Urology, Urological Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Roberta Lucianò
- Department of Pathology, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Manuela Nebuloni
- Unit of Surgical Pathology, Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, Milan, Italy
| | - Alberto Briganti
- Division of Experimental Oncology/Unit of Urology, Urological Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Andrea Gallina
- Division of Experimental Oncology/Unit of Urology, Urological Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Renzo Colombo
- Division of Experimental Oncology/Unit of Urology, Urological Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Andrea Necchi
- Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Nazionale dei Tumori, Milan, Italy
| | - Massimo Clementi
- Vita-Salute San Raffaele University, Milan, Italy; Laboratory of Microbiology and Virology, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Francesco Montorsi
- Division of Experimental Oncology/Unit of Urology, Urological Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Nicasio Mancini
- Laboratory of Microbiology and Virology, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Andrea Salonia
- Division of Experimental Oncology/Unit of Urology, Urological Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Massimo Alfano
- Division of Experimental Oncology/Unit of Urology, Urological Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy.
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Pederzoli F, Ferrarese R, Amato V, Locatelli I, Alchera E, Lucianò R, Nebuloni M, Briganti A, Gallina A, Murdica V, Colombo R, Necchi A, Clementi M, Montorsi F, Mancini N, Salonia A, Alfano M. Abstract A33: Intratissutal and urinary microbiome in therapy-naive bladder cancer patients: Definition of a gender-specific common microbiome. Cancer Res 2020. [DOI: 10.1158/1538-7445.mvc2020-a33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Despite being actively investigated for several other malignancies, the impact of the microbiome on tumorigenesis, response to therapy, and patient outcomes has not been thoroughly assessed in urothelial bladder cancer (BCa). Of note, the relationship between urinary and bladder tissue microbiomes has not yet been investigated. Herein, we aimed to assess: i) the gender-specific microbiome differences in the urine and bladder tissue; ii) the extent to which paired urine samples mirror the bladder tissue-associated microbiome.
Methods: A total of 166 biologic samples were analyzed: morning, mid-stream voided urines from 49 therapy-naïve patients (36 males, 13 females) undergoing radical cystectomy for MIBC and from 59 age-matched healthy controls (34 males, 25 females), plus bladder tissue specimens (paired BCa/non-BCa tissues) of 29 patients (21 males, 8 females). Exclusion criteria included history of recurrent urinary tract infections, positive urine dipstick test at the time of sample collection, recent antibiotic therapy, history of intravesical or neoadjuvant treatment for BCa. Microbiome was analyzed by amplicon-based approach. Sequences with a high-quality score >Q30 and length >250bp were used for the taxonomic analysis and were processed using the QIIME (Quantitative Insights Into Microbial Ecology) software package (v1.9.1). Intra- and interdiversity between samples and identification of taxonomic biomarkers by using the linear discriminant analysis (LDA) effect size (LEfSe) were considered significant at p-value ≤0.05.
Results: Comparing neoplastic vs. non-neoplastic paired tissues, beta-diversity did not show distinct clustering of the samples. At the taxonomic level, the genus Burkholderia was enriched in the neoplastic specimens in both genders. When we compared urines of patients vs. controls, the male and female urinary microbiome was dominated by members of the three major bacterial phyla Proteobacteria, Firmicutes, and Bacteroidetes. At lower taxonomic levels, the bacterial taxa differently enriched in BCa vs. controls were gender-specific, with 18 and 36 bacterial taxa differentially represented in BCa and controls in men and women, respectively. Comparing paired urinary and tissue-associated microbiome, we defined the “common BCa microbiome,” representing 34 and 16 bacterial families (>80% of total relative abundance) shared in the urines and tissues of male and female patients, respectively.
Conclusions: We provide novel characterization of the gender-specific microbiome in the urines and paired bladder tissues of BCa patients. A gender-specific “common BCa microbiome” was detailed, highlighting potentially actionable bacterial taxa.
Citation Format: Filippo Pederzoli, Roberto Ferrarese, Virginia Amato, Irene Locatelli, Elisa Alchera, Roberta Lucianò, Manuela Nebuloni, Alberto Briganti, Andrea Gallina, Valentina Murdica, Renzo Colombo, Andrea Necchi, Massimo Clementi, Francesco Montorsi, Nicasio Mancini, Andrea Salonia, Massimo Alfano. Intratissutal and urinary microbiome in therapy-naive bladder cancer patients: Definition of a gender-specific common microbiome [abstract]. In: Proceedings of the AACR Special Conference on the Microbiome, Viruses, and Cancer; 2020 Feb 21-24; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2020;80(8 Suppl):Abstract nr A33.
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Affiliation(s)
- Filippo Pederzoli
- 1Division of Experimental Oncology/Unit of Urology; Urological Research Institute; IRCCS Ospedale San Raffaele; Vita-Salute San Raffaele University, Milan, Italy,
| | - Roberto Ferrarese
- 2Laboratory of Microbiology and Virology, IRCCS Ospedale San Raffaele, Milan, Italy,
| | - Virginia Amato
- 2Laboratory of Microbiology and Virology, IRCCS Ospedale San Raffaele, Milan, Italy,
| | - Irene Locatelli
- 3Division of Experimental Oncology/Unit of Urology; Urological Research Institute; IRCCS Ospedale San Raffaele, Milan, Italy,
| | - Elisa Alchera
- 3Division of Experimental Oncology/Unit of Urology; Urological Research Institute; IRCCS Ospedale San Raffaele, Milan, Italy,
| | - Roberta Lucianò
- 4Department of Pathology, IRCCS Ospedale San Raffaele, Milan, Italy,
| | - Manuela Nebuloni
- 5Unit of Surgical Pathology, Department of Biomedical and Clinical Sciences “Luigi Sacco,” University of Milan, Milan, Italy,
| | - Alberto Briganti
- 1Division of Experimental Oncology/Unit of Urology; Urological Research Institute; IRCCS Ospedale San Raffaele; Vita-Salute San Raffaele University, Milan, Italy,
| | - Andrea Gallina
- 3Division of Experimental Oncology/Unit of Urology; Urological Research Institute; IRCCS Ospedale San Raffaele, Milan, Italy,
| | - Valentina Murdica
- 3Division of Experimental Oncology/Unit of Urology; Urological Research Institute; IRCCS Ospedale San Raffaele, Milan, Italy,
| | - Renzo Colombo
- 3Division of Experimental Oncology/Unit of Urology; Urological Research Institute; IRCCS Ospedale San Raffaele, Milan, Italy,
| | - Andrea Necchi
- 6Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy,
| | - Massimo Clementi
- 7Laboratory of Microbiology and Virology, IRCCS Ospedale San Raffaele; Vita-Salute San Raffaele University, Milan, Italy
| | - Francesco Montorsi
- 1Division of Experimental Oncology/Unit of Urology; Urological Research Institute; IRCCS Ospedale San Raffaele; Vita-Salute San Raffaele University, Milan, Italy,
| | - Nicasio Mancini
- 7Laboratory of Microbiology and Virology, IRCCS Ospedale San Raffaele; Vita-Salute San Raffaele University, Milan, Italy
| | - Andrea Salonia
- 1Division of Experimental Oncology/Unit of Urology; Urological Research Institute; IRCCS Ospedale San Raffaele; Vita-Salute San Raffaele University, Milan, Italy,
| | - Massimo Alfano
- 3Division of Experimental Oncology/Unit of Urology; Urological Research Institute; IRCCS Ospedale San Raffaele, Milan, Italy,
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Amato V, Papaleo E, Pasciuta R, Viganò P, Ferrarese R, Clementi N, Sanchez AM, Quaranta L, Burioni R, Ambrosi A, Salonia A, Clementi M, Candiani M, Mancini N. Differential Composition of Vaginal Microbiome, but Not of Seminal Microbiome, Is Associated With Successful Intrauterine Insemination in Couples With Idiopathic Infertility: A Prospective Observational Study. Open Forum Infect Dis 2019; 7:ofz525. [PMID: 31915713 PMCID: PMC6942492 DOI: 10.1093/ofid/ofz525] [Citation(s) in RCA: 15] [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: 08/25/2019] [Accepted: 12/09/2019] [Indexed: 12/13/2022] Open
Abstract
Background Vaginal and seminal microbiomes have gained increasing interest for their involvement in reproductive health and fertility. However, their role in reproductive outcome is not fully understood yet. In this study, we aimed to correlate the vaginal and the seminal microbiome of 23 couples with idiopathic infertility to the clinical pregnancy rate after intrauterine insemination (IUI). Methods Vaginal swabs and seminal fluids were collected on the day of IUI procedure and analyzed through polymerase chain reaction amplification of variable regions 3 and 4 (V3–V4) of 16S ribosomal ribonucleic acid genes and Illumina MiSeq sequencing. The taxonomic data were then correlated to IUI success. Results Idiopathic infertile women showed a different average composition of vaginal microbiome compared with control sequences, whereas for seminal counterpart no relevant differences were observed. Furthermore, among idiopathic infertile women, different patterns of Lactobacillus species dominations were observed, with a predominance either of Lactobacillus crispatus, a marker of a healthy vaginal ecosystem, or of Lactobacillus iners and Lactobacillus gasseri, associated with a more dysbiosis-prone environment. More important, considering all investigated variables, vaginal L crispatus domination was the only factor strongly associated to IUI success (P = .0002). Conclusions Our results strengthen the potential role of L crispatus in promoting a favorable environment for pregnancy and suggest that microbiome characterization could be useful, together with standard clinical and laboratory assessments, in the pre-IUI evaluation of infertile couples.
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Affiliation(s)
- Virginia Amato
- Microbiology and Virology Unit, "Vita-Salute" San Raffaele University, Milan, Italy
| | - Enrico Papaleo
- Obstetrics and Gynaecology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Renée Pasciuta
- Microbiology and Virology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Paola Viganò
- Reproductive Sciences Laboratory, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Roberto Ferrarese
- Microbiology and Virology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Nicola Clementi
- Microbiology and Virology Unit, "Vita-Salute" San Raffaele University, Milan, Italy
| | - Ana Maria Sanchez
- Reproductive Sciences Laboratory, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Lavinia Quaranta
- Obstetrics and Gynaecology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Roberto Burioni
- Microbiology and Virology Unit, "Vita-Salute" San Raffaele University, Milan, Italy
| | - Alessandro Ambrosi
- Faculty of Medicine and Surgery, "Vita-Salute" San Raffaele University, Milan, Italy
| | - Andrea Salonia
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Massimo Clementi
- Microbiology and Virology Unit, "Vita-Salute" San Raffaele University, Milan, Italy.,Microbiology and Virology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Massimo Candiani
- Obstetrics and Gynaecology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy.,Department of Obstetrics and Gynecology, "Vita-Salute" San Raffaele University School of Medicine, IRCCS, Ospedale San Raffaele, Milan, Italy
| | - Nicasio Mancini
- Microbiology and Virology Unit, "Vita-Salute" San Raffaele University, Milan, Italy.,Microbiology and Virology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
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Ferrarese R, Ceresola ER, Preti A, Canducci F. Probiotics, prebiotics and synbiotics for weight loss and metabolic syndrome in the microbiome era. Eur Rev Med Pharmacol Sci 2019; 22:7588-7605. [PMID: 30468509 DOI: 10.26355/eurrev_201811_16301] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Excessive body fat and the associated dysmetabolic consequences affect both developed and emerging countries. An altered gut microbiota composition is an important environmental cause of these conditions. Clinical trials targeting gut microbiome composition or functions with pro or prebiotics to promote a healthier profile are considered a promising tool for excessive body weight treatment and prevention of dysmetabolic complications. MATERIALS AND METHODS We searched PubMed and Cochrane Library using combinations of probiotics/prebiotics and synbiotics with obesity/weight loss/metabolic syndrome as the search terms. Clinical studies and significant pre-clinical results showing molecular mechanisms supporting clinical results were also discussed. RESULTS Several studies in humans and in animal models have elucidated biological mechanisms supporting the observed clinical efficacy of selected probiotic and prebiotic compounds for weight management. Efficacy appears to be species or strain-specific. Fibers such as inulin or galactomannan promote independent and synergistic beneficial effects. CONCLUSIONS Diet supplementation with synbiotics prepared using selected strains (such as Lactobacillus gasseri strains) showed to exert weight-reduction and anti-inflammatory activity in large independent studies. Their administration, together with galactomannan and/or inulin fibers, may increase weight management effects due to synergistic effect on short chain fatty acid production and microbiota 're-configuration'.
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Affiliation(s)
- R Ferrarese
- Microbiology Unit, Vita-Salute San Raffaele University, Milan, Italy.
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29
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Ceresola ER, Ferrarese R, Preti A, Canducci F. Targeting patients' microbiota with probiotics and natural fibers in adults and children with constipation. Eur Rev Med Pharmacol Sci 2019; 22:7045-7057. [PMID: 30402873 DOI: 10.26355/eurrev_201810_16177] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Functional constipation (FC) is a common condition in which the gut microbiota composition plays a fundamental role. The increasing knowledge on the role of gut microbes in the regulation of gut motility and stool consistency has allowed reconsidering, with a new scientific-based approach, the possibility to target the composition of intestinal bacterial populations for FC treatment. In this review, we evaluate recent attempts that used prebiotics, natural fibers or probiotics to treat FC, with a deep microbiome-based focus. MATERIALS AND METHODS This is a literature review of articles published in Medline, Web of Science, and the Cochrane Library. Studies on FC in adults and children were identified using the following terms: constipation AND probiotics OR prebiotics OR synbiotics PR fibers OR microbiome OR microbiota. Selected animal studies were also considered if showing mechanistic observations. RESULTS FC is associated with alteration in microbiome composition. Motility and fecal consistency are affected with different efficacy by the type of fiber, prebiotic or probiotic strain used in patients. CONCLUSIONS Selected bacterial strains, mainly belonging to the Bifidobacterium genus, and some poorly or non-fermented natural fibers, such as Psyllium, may significantly improve FC and may represent the basis for an effective supplementation.
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Affiliation(s)
- E R Ceresola
- Microbiology Unit, University of Insubria, Varese, Italy.
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30
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Aldave G, Gonzalez-Huarriz M, Rubio A, Romero JP, Ravi D, Miñana B, Cuadrado-Tejedor M, García-Osta A, Verhaak R, Xipell E, Martinez-Vélez N, de la Rocha AA, Puigdelloses M, García-Moure M, Marigil M, Gállego Pérez-Larraya J, Marín-Bejar O, Huarte M, Carro MS, Ferrarese R, Belda-Iniesta C, Ayuso A, Prat-Acín R, Pastor F, Díez-Valle R, Tejada S, Alonso MM. The aberrant splicing of BAF45d links splicing regulation and transcription in glioblastoma. Neuro Oncol 2019; 20:930-941. [PMID: 29373718 DOI: 10.1093/neuonc/noy007] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Background Glioblastoma, the most aggressive primary brain tumor, is genetically heterogeneous. Alternative splicing (AS) plays a key role in numerous pathologies, including cancer. The objectives of our study were to determine whether aberrant AS could play a role in the malignant phenotype of glioma and to understand the mechanism underlying its aberrant regulation. Methods We obtained surgical samples from patients with glioblastoma who underwent 5-aminolevulinic fluorescence-guided surgery. Biopsies were taken from the tumor center as well as from adjacent normal-appearing tissue. We used a global splicing array to identify candidate genes aberrantly spliced in these glioblastoma samples. Mechanistic and functional studies were performed to elucidate the role of our top candidate splice variant, BAF45d, in glioblastoma. Results BAF45d is part of the switch/sucrose nonfermentable complex and plays a key role in the development of the CNS. The BAF45d/6A isoform is present in 85% of over 200 glioma samples that have been analyzed and contributes to the malignant glioma phenotype through the maintenance of an undifferentiated cellular state. We demonstrate that BAF45d splicing is mediated by polypyrimidine tract-binding protein 1 (PTBP1) and that BAF45d regulates PTBP1, uncovering a reciprocal interplay between RNA splicing regulation and transcription. Conclusions Our data indicate that AS is a mechanism that contributes to the malignant phenotype of glioblastoma. Understanding the consequences of this biological process will uncover new therapeutic targets for this devastating disease.
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Affiliation(s)
- Guillermo Aldave
- Division of Pediatric Neurosurgery, Department of Surgery, Texas Children's Hospital, Department of Neurosurgery, Baylor College of Medicine, Houston, Texas, USA
| | - Marisol Gonzalez-Huarriz
- Department of Pediatrics, University Hospital of Navarra, Pamplona, Navarra, Spain.,Health Research Institute of Navarra (IDISNA), Pamplona, Navarra, Spain.,Program in Solid Tumors, Foundation for Applied Medical Research, Pamplona, Navarra, Spain
| | - Angel Rubio
- CEIT and TECNUN, University of Navarra, San Sebastian, Spain
| | | | - Datta Ravi
- CEIT and TECNUN, University of Navarra, San Sebastian, Spain
| | - Belén Miñana
- Centre de Regulació Genòmica (CRG), Barcelona Institute of Science and Technology, Barcelona, Spain, Universitat Pompeu-Fabra, Barcelona, Spain
| | - Mar Cuadrado-Tejedor
- Health Research Institute of Navarra (IDISNA), Pamplona, Navarra, Spain.,Neurobiology of Alzheimer's Disease, Neurosciences Division, Center for Applied Medical Research, University of Navarra, Pamplona, Spain.,Anatomy Department, School of Medicine, University of Navarra, Pamplona, Spain
| | - Ana García-Osta
- Health Research Institute of Navarra (IDISNA), Pamplona, Navarra, Spain.,Neurobiology of Alzheimer's Disease, Neurosciences Division, Center for Applied Medical Research, University of Navarra, Pamplona, Spain
| | - Roeland Verhaak
- Department of Genomic Medicine, University of Texas MD Anderson Cancer Center, Houston, Texas, USA.,Department of Bioinformatics and Computational Biology, Division of Quantitative Sciences, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Enric Xipell
- Department of Pediatrics, University Hospital of Navarra, Pamplona, Navarra, Spain.,Health Research Institute of Navarra (IDISNA), Pamplona, Navarra, Spain.,Program in Solid Tumors, Foundation for Applied Medical Research, Pamplona, Navarra, Spain
| | - Naiara Martinez-Vélez
- Department of Pediatrics, University Hospital of Navarra, Pamplona, Navarra, Spain.,Health Research Institute of Navarra (IDISNA), Pamplona, Navarra, Spain.,Program in Solid Tumors, Foundation for Applied Medical Research, Pamplona, Navarra, Spain
| | - Arlet Acanda de la Rocha
- Department of Pediatrics, University Hospital of Navarra, Pamplona, Navarra, Spain.,Health Research Institute of Navarra (IDISNA), Pamplona, Navarra, Spain.,Program in Solid Tumors, Foundation for Applied Medical Research, Pamplona, Navarra, Spain
| | - Montserrat Puigdelloses
- Department of Pediatrics, University Hospital of Navarra, Pamplona, Navarra, Spain.,Health Research Institute of Navarra (IDISNA), Pamplona, Navarra, Spain.,Program in Solid Tumors, Foundation for Applied Medical Research, Pamplona, Navarra, Spain
| | - Marc García-Moure
- Department of Pediatrics, University Hospital of Navarra, Pamplona, Navarra, Spain.,Health Research Institute of Navarra (IDISNA), Pamplona, Navarra, Spain.,Program in Solid Tumors, Foundation for Applied Medical Research, Pamplona, Navarra, Spain
| | - Miguel Marigil
- Department of Pediatrics, University Hospital of Navarra, Pamplona, Navarra, Spain.,Health Research Institute of Navarra (IDISNA), Pamplona, Navarra, Spain.,Program in Solid Tumors, Foundation for Applied Medical Research, Pamplona, Navarra, Spain
| | - Jaime Gállego Pérez-Larraya
- Department of Pediatrics, University Hospital of Navarra, Pamplona, Navarra, Spain.,Health Research Institute of Navarra (IDISNA), Pamplona, Navarra, Spain.,Program in Solid Tumors, Foundation for Applied Medical Research, Pamplona, Navarra, Spain
| | - Oskar Marín-Bejar
- Health Research Institute of Navarra (IDISNA), Pamplona, Navarra, Spain.,Department of Gene Therapy and Regulation of Gene Expression, Center for Applied Medical Research, University of Navarra, Pamplona, Spain
| | - Maite Huarte
- Health Research Institute of Navarra (IDISNA), Pamplona, Navarra, Spain.,Department of Gene Therapy and Regulation of Gene Expression, Center for Applied Medical Research, University of Navarra, Pamplona, Spain
| | - Maria Stella Carro
- Department of Neurosurgery (Neurocenter) Universitätsklinikum Freiburg, Freiburg, Germany
| | - Roberto Ferrarese
- Department of Neurosurgery (Neurocenter) Universitätsklinikum Freiburg, Freiburg, Germany
| | | | - Angel Ayuso
- Fundación de Investigación HM Hospitales, Grupo HM, Spain.,Facultad de Medicina, Universidad CEU-San Pablo, Madrid, Spain
| | - Ricardo Prat-Acín
- Department of Neurosurgery, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Fernando Pastor
- Health Research Institute of Navarra (IDISNA), Pamplona, Navarra, Spain.,Program of Molecular Therapies, Aptamer Unit, Centro de Investigación Médica Aplicada, Pamplona, Spain
| | - Ricardo Díez-Valle
- Health Research Institute of Navarra (IDISNA), Pamplona, Navarra, Spain.,Program in Solid Tumors, Foundation for Applied Medical Research, Pamplona, Navarra, Spain.,Department of Neurosurgery, University Hospital of Navarra, Pamplona, Navarra, Spain
| | - Sonia Tejada
- Health Research Institute of Navarra (IDISNA), Pamplona, Navarra, Spain.,Program in Solid Tumors, Foundation for Applied Medical Research, Pamplona, Navarra, Spain.,Department of Neurosurgery, University Hospital of Navarra, Pamplona, Navarra, Spain
| | - Marta M Alonso
- Department of Pediatrics, University Hospital of Navarra, Pamplona, Navarra, Spain.,Health Research Institute of Navarra (IDISNA), Pamplona, Navarra, Spain.,Program in Solid Tumors, Foundation for Applied Medical Research, Pamplona, Navarra, Spain
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31
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Falcone M, Sorini C, Cosorich I, Conte ML, Facciotti F, Sanvito F, Ferrarese R, Canducci F. Loss of gut barrier integrity triggers autoimmune diabetes through microbiota-induced activation of islet-reactive T cells. The Journal of Immunology 2019. [DOI: 10.4049/jimmunol.202.supp.178.8] [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] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Recent evidence suggests that the intestinal environment and, specifically, modifications of the microbiome profile, regulate the pathogenesis of extra-intestinal autoimmune diseases such as Type 1 Diabetes (T1D) by inducing intestinal inflammation and increasing gut permeability. Although low-grade intestinal inflammation and alterations of gut barrier integrity are found in humans and animal models of T1D, a direct causal link between enteropathy and triggering of beta cell autoimmunity is yet to be established. Here we show that breakage of the gut barrier integrity (by low-dose DSS administration) in BDC2.5XNOD mice carrying a transgenic TCR specific for a beta cell-autoantigen leads to activation of the islet-reactive T cell clone (BDC2.5) within the gut mucosa and onset of T1D. The intestinal activation of islet-reactive T cells requires the presence of gut microbiota and is abolished when mice are depleted of endogenous commensal microbiota. Importantly, we found that gut microbial antigens are directly capable to activate the diabetogenic BDC2.5 T cells with a TCR-mediated mechanism. Our results indicate that loss of the intestinal barrier continuity is directly responsible for activation of islet-specific T cells by commensal gut microbiota and provide a strong rationale to design innovative therapeutic interventions in “at risk” individuals aimed at restoring gut barrier integrity to prevent T1D.
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32
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Alfano M, Ferrarese R, Locatelli I, Ventimiglia E, Ippolito S, Gallina P, Cesana D, Canducci F, Pagliardini L, Viganò P, Clementi M, Nebuloni M, Montorsi F, Salonia A. Testicular microbiome in azoospermic men-first evidence of the impact of an altered microenvironment. Hum Reprod 2019; 33:1212-1217. [PMID: 29850857 PMCID: PMC6012977 DOI: 10.1093/humrep/dey116] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [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: 01/26/2018] [Accepted: 05/08/2018] [Indexed: 02/06/2023] Open
Abstract
STUDY QUESTION Given the relevant role of the extracellular microenvironment in regulating tissue homeostasis, is testicular bacterial microbiome (BM) associated with germ cell aplasia in idiopathic non-obstructive azoospermia (iNOA)? SUMMARY ANSWER A steady increase of dysbiosis was observed among testis with normal spermatogenesis vs. iNOA with positive sperm retrieval and iNOA with complete germ cell aplasia. WHAT IS KNOWN ALREADY Tissue-associated BM has been reported to be a biologically important extracellular microenvironment component for numerous body habitats, but not yet for the human testis. STUDY DESIGN, SIZE, DURATION Cross-sectional study, investigating tissue-associated BM in the testis of (i) five men with iNOA and negative sperm retrieval at microdissection testicular sperm extraction (microTESE); (ii) five men with iNOA and positive sperm retrieval at microTESE; and (iii) five normozoospermic men upon orchiectomy. Every testicular specimen was histologically classified and analyzed in terms of bacterial community. PARTICIPANTS/MATERIALS, SETTING, METHODS Massive ultra-deep pyrosequencing was applied to investigate testis microbiome. Metagenome was analyzed using Quantitative Insights Into Microbial Ecology (QIIME). Tissue-associated bacterial load was quantified by digital droplet PCR. MAIN RESULTS AND THE ROLE OF CHANCE Normozoospermic men showed small amounts of bacteria in the testis, with Actinobacteria, Bacteroidetes, Firmicutes Proteobacteria as the dominating phyla; iNOA individuals had increased amounts of bacterial DNA (P = 0.02), associated with decreased taxa richness due to the lack of Bacteroidetes and Proteobacteria (P = 2 × 10−5). Specimens with negative sperm retrieval at microTESE depicted complete germ cell aplasia and a further decrease in terms of Firmicutes and Clostridia (P < 0.05), a complete lack of Peptoniphilus asaccharolyticus, but increased amount of Actinobacteria. LIMITATIONS, REASONS FOR CAUTION The limited number of specimens analyzed in this preliminary study deserves external validation. The paraneoplastic microenvironment could have an impact on the residential bacterial flora. WIDER IMPLICATION OF THE FINDINGS Human testicular microenvironment is not microbiologically sterile, containing low amounts of Actinobacteria, Bacteroidetes, Firmicutes and Proteobacteria. A dysbiotic bacterial community was associated with iNOA and complete germ cell aplasia. Novel findings on testicular BM could support future translational therapies of male-factor infertility. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by URI-Urological Research Institute free funds. Authors declared no conflict of interest. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- Massimo Alfano
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Via Olgettina 60, Milan, Italy
| | | | - Irene Locatelli
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Via Olgettina 60, Milan, Italy
| | - Eugenio Ventimiglia
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Via Olgettina 60, Milan, Italy.,Università Vita-Salute San Raffaele, Via Olgettina 58, Milan, Italy
| | - Silvia Ippolito
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Via Olgettina 60, Milan, Italy
| | - Pierangela Gallina
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS, San Raffaele Scientific Institute, Milan, Italy
| | - Daniela Cesana
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS, San Raffaele Scientific Institute, Milan, Italy
| | - Filippo Canducci
- Department of Biotechnology and Life Sciences, Università degli Studi dell'Insubria, Via Dunant 3, Varese, Italy
| | - Luca Pagliardini
- Infertility Unit, Unit of Obstetrics/Gynecology, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Paola Viganò
- Infertility Unit, Unit of Obstetrics/Gynecology, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Massimo Clementi
- Università Vita-Salute San Raffaele, Via Olgettina 58, Milan, Italy
| | - Manuela Nebuloni
- Pathology Unit, Department of Clinical Sciences, L. Sacco Hospital, Università degli Studi di Milano, Via Giovanni Battista Grassi 74, Milan, Italy
| | - Francesco Montorsi
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Via Olgettina 60, Milan, Italy.,Università Vita-Salute San Raffaele, Via Olgettina 58, Milan, Italy
| | - Andrea Salonia
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Via Olgettina 60, Milan, Italy.,Università Vita-Salute San Raffaele, Via Olgettina 58, Milan, Italy
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33
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Calcinotto A, Brevi A, Chesi M, Ferrarese R, Garcia Perez L, Grioni M, Kumar S, Garbitt VM, Sharik ME, Henderson KJ, Tonon G, Tomura M, Miwa Y, Esplugues E, Flavell RA, Huber S, Canducci F, Rajkumar VS, Bergsagel PL, Bellone M. Microbiota-driven interleukin-17-producing cells and eosinophils synergize to accelerate multiple myeloma progression. Nat Commun 2018; 9:4832. [PMID: 30510245 PMCID: PMC6277390 DOI: 10.1038/s41467-018-07305-8] [Citation(s) in RCA: 132] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 10/15/2018] [Indexed: 12/31/2022] Open
Abstract
The gut microbiota has been causally linked to cancer, yet how intestinal microbes influence progression of extramucosal tumors is poorly understood. Here we provide evidence implying that Prevotella heparinolytica promotes the differentiation of Th17 cells colonizing the gut and migrating to the bone marrow (BM) of transgenic Vk*MYC mice, where they favor progression of multiple myeloma (MM). Lack of IL-17 in Vk*MYC mice, or disturbance of their microbiome delayed MM appearance. Similarly, in smoldering MM patients, higher levels of BM IL-17 predicted faster disease progression. IL-17 induced STAT3 phosphorylation in murine plasma cells, and activated eosinophils. Treatment of Vk*MYC mice with antibodies blocking IL-17, IL-17RA, and IL-5 reduced BM accumulation of Th17 cells and eosinophils and delayed disease progression. Thus, in Vk*MYC mice, commensal bacteria appear to unleash a paracrine signaling network between adaptive and innate immunity that accelerates progression to MM, and can be targeted by already available therapies.
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Affiliation(s)
- Arianna Calcinotto
- Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, 20132, Italy
- Institute of Oncology Research, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - Arianna Brevi
- Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, 20132, Italy
- Vita-Salute San Raffaele University, 20132, Milan, Italy
| | - Marta Chesi
- Comprehensive Cancer Center, Mayo Clinic Arizona, Scottsdale, AZ, 85259, USA
| | - Roberto Ferrarese
- Laboratory of Microbiology, IRCCS San Raffaele Scientific Institute, Milan, 20132, Italy
| | - Laura Garcia Perez
- Molekulare Immunologie und Gastroenterologie, Universitätsklinikum Hamburg-Eppendorf, Hamburg, 20246, Germany
| | - Matteo Grioni
- Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, 20132, Italy
| | - Shaji Kumar
- Division of Hematology, Mayo Clinic Rochester, Rochester, MN, 55905, USA
| | - Victoria M Garbitt
- Comprehensive Cancer Center, Mayo Clinic Arizona, Scottsdale, AZ, 85259, USA
| | - Meaghen E Sharik
- Comprehensive Cancer Center, Mayo Clinic Arizona, Scottsdale, AZ, 85259, USA
| | | | - Giovanni Tonon
- Division of Molecular Oncology, IRCCS San Raffaele Scientific Institute, Milan, 20132, Italy
| | - Michio Tomura
- Faculty of Pharmacy, Osaka Ohtani University, Osaka, 584-8540, Japan
| | | | - Enric Esplugues
- Department of Immunobiology, School of Medicine, and Howard Hughes Medical Institute Yale University, New Haven, 06520, USA
| | - Richard A Flavell
- Department of Immunobiology, School of Medicine, and Howard Hughes Medical Institute Yale University, New Haven, 06520, USA
| | - Samuel Huber
- Molekulare Immunologie und Gastroenterologie, Universitätsklinikum Hamburg-Eppendorf, Hamburg, 20246, Germany
| | - Filippo Canducci
- Laboratory of Microbiology, IRCCS San Raffaele Scientific Institute, Milan, 20132, Italy
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, 21100, Italy
| | - Vincent S Rajkumar
- Division of Hematology, Mayo Clinic Rochester, Rochester, MN, 55905, USA
| | - P Leif Bergsagel
- Comprehensive Cancer Center, Mayo Clinic Arizona, Scottsdale, AZ, 85259, USA
| | - Matteo Bellone
- Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, 20132, Italy.
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34
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Masilamani AP, Ferrarese R, Andrieux G, Kling E, Börries M, Carro M. BTC1.05 Role and significance of ZBTB18-CTBP2 interaction in Glioblastoma. Neuro Oncol 2018. [DOI: 10.1093/neuonc/noy139.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | | | - G Andrieux
- Institute of Molecular Medicine and Cell Research, University of Freiburg, Freiburg, Germany
| | - E Kling
- Freiburg Medical Center, Freiburg, Germany
| | - M Börries
- 3Institute of Molecular Medicine and Cell Research, Faculty of Medicine, Freiburg, Germany
| | - M Carro
- Freiburg Medical Center, Freiburg, Germany
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35
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Masilamani A, Ferrarese R, Kling E, Helm J, Yuan S, Schilling O, Carro M. P04.81 Calpain 2 mediates ZBTB18 proteolytic cleavage in GBM. Neuro Oncol 2018. [DOI: 10.1093/neuonc/noy139.315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- A Masilamani
- Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg, Germany
| | - R Ferrarese
- Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg, Germany
| | - E Kling
- Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg, Germany
| | - J Helm
- Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg, Germany
| | - S Yuan
- Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg, Germany
| | - O Schilling
- Institute of Molecular Medicine and Cell Research, Freiburg, Germany
| | - M Carro
- Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg, Germany
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36
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De Giorgi L, Sorini C, Cosorich I, Ferrarese R, Canducci F, Falcone M. Increased iNKT17 Cell Frequency in the Intestine of Non-Obese Diabetic Mice Correlates With High Bacterioidales and Low Clostridiales Abundance. Front Immunol 2018; 9:1752. [PMID: 30105027 PMCID: PMC6077215 DOI: 10.3389/fimmu.2018.01752] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 04/30/2018] [Accepted: 07/16/2018] [Indexed: 11/17/2022] Open
Abstract
iNKT cells play different immune function depending on their cytokine-secretion phenotype. iNKT17 cells predominantly secrete IL-17 and have an effector and pathogenic role in the pathogenesis of autoimmune diseases such as type 1 diabetes (T1D). In line with this notion, non-obese diabetic (NOD) mice that spontaneously develop T1D have an increased percentage of iNKT17 cells compared to non-autoimmune strains of mice. The factors that regulate iNKT cell expansion and acquisition of a specific iNKT17 cell phenotype are unclear. Here, we demonstrate that the percentage of iNKT17 cells is increased in the gut more than peripheral lymphoid organs of NOD mice, thus suggesting that the intestinal environment promotes iNKT17 cell differentiation in these mice. Increased intestinal iNKT17 cell differentiation in NOD mice is associated with the presence of pro-inflammatory IL-6-secreting dendritic cells that could contribute to iNKT cell expansion and iNKT17 cell differentiation. In addition, we found that increased iNKT17 cell differentiation in the large intestine of NOD mice is associated with a specific gut microbiota profile. We demonstrated a positive correlation between percentage of intestinal iNKT17 cells and bacterial strain richness (α-diversity) and relative abundance of Bacterioidales strains. On the contrary, the relative abundance of the anti-inflammatory Clostridiales strains negatively correlates with the intestinal iNKT17 cell frequency. Considering that iNKT17 cells play a key pathogenic role in T1D, our data support the notion that modulation of iNKT17 cell differentiation through gut microbiota changes could have a beneficial effect in T1D.
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Affiliation(s)
- Lorena De Giorgi
- Experimental Diabetes Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Chiara Sorini
- Department of Medicine, Karolinska Institute, Stockholm, Sweden
| | - Ilaria Cosorich
- Experimental Diabetes Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Roberto Ferrarese
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Filippo Canducci
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Marika Falcone
- Experimental Diabetes Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
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37
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Tintori C, Iovenitti G, Ceresola ER, Ferrarese R, Zamperini C, Brai A, Poli G, Dreassi E, Cagno V, Lembo D, Canducci F, Botta M. Rhodanine derivatives as potent anti-HIV and anti-HSV microbicides. PLoS One 2018; 13:e0198478. [PMID: 29870553 PMCID: PMC5988308 DOI: 10.1371/journal.pone.0198478] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 05/18/2018] [Indexed: 12/12/2022] Open
Abstract
Although highly active antiretroviral therapies (HAART) remarkably increased life expectancy of HIV positive people, the rate of novel HIV-1 infections worldwide still represent a major concern. In this context, pre-exposure prophylaxis (PrEP) approaches such as vaginal microbicide gels topically releasing antiretroviral drugs, showed to have a striking impact in limiting HIV-1 spread. Nevertheless, the co-presence of other genital infections, particularly those due to HSV-1 or 2, constitute a serious drawback that strongly limits the efficacy of PrEP approaches. For this reason, combinations of different compounds with mixed antiviral and antiretroviral activity are thoroughly investigated Here we report the synthesis and the biological evaluation of a novel series of rhodanine derivatives, which showed to inhibit both HIV-1 and HSV-1/2 replication at nanomolar concentration, and were found to be active also on acyclovir resistant HSV-2 strains. The compounds showed a considerable reduction of activity in presence of serum due to a high binding to serum albumin, as determined through in vitro ADME evaluations. However, the most promising compound of the series maintained a considerable activity in gel formulation, with an EC50 comparable to that obtained for the reference drug tenofovir. Moreover, the series of compounds showed pharmacokinetic properties suitable for topical formulation, thus suggesting that the novel rhodanine derivatives could represent effective agents to be used as dual anti HIV/HSV microbicides in PrEP approaches.
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Affiliation(s)
- Cristina Tintori
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
| | - Giulia Iovenitti
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
| | - Elisa Rita Ceresola
- Laboratory of Microbiology and Virology, Ospedale San Raffaele, Milan, Italy
| | - Roberto Ferrarese
- Laboratory of Microbiology and Virology, Ospedale San Raffaele, Milan, Italy
| | - Claudio Zamperini
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
- Lead Discovery Siena S.r.l., Castelnuovo Berardenga, Siena, Italy
| | - Annalaura Brai
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
- Lead Discovery Siena S.r.l., Castelnuovo Berardenga, Siena, Italy
| | - Giulio Poli
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
| | - Elena Dreassi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
| | - Valeria Cagno
- Laboratory of Molecular Virology and Antiviral Research. Department of Clinical and Biological Sciences, University of Torino, Orbassano, Torino, Italy
- Department of Molecular Microbiology, University of Geneva, Geneva, Switzerland
| | - David Lembo
- Laboratory of Molecular Virology and Antiviral Research. Department of Clinical and Biological Sciences, University of Torino, Orbassano, Torino, Italy
| | - Filippo Canducci
- Laboratory of Microbiology and Virology, Ospedale San Raffaele, Milan, Italy
| | - Maurizio Botta
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
- Lead Discovery Siena S.r.l., Castelnuovo Berardenga, Siena, Italy
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, PA, United States of America
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38
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Heiland DH, Ferrarese R, Claus R, Dai F, Masilamani AP, Kling E, Weyerbrock A, Kling T, Nelander S, Carro MS. c-Jun-N-terminal phosphorylation regulates DNMT1 expression and genome wide methylation in gliomas. Oncotarget 2018; 8:6940-6954. [PMID: 28036297 PMCID: PMC5351681 DOI: 10.18632/oncotarget.14330] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Accepted: 12/15/2016] [Indexed: 12/19/2022] Open
Abstract
High-grade gliomas (HGG) are the most common brain tumors, with an average survival time of 14 months. A glioma-CpG island methylator phenotype (G-CIMP), associated with better clinical outcome, has been described in low and high-grade gliomas. Mutation of IDH1 is known to drive the G-CIMP status. In some cases, however, the hypermethylation phenotype is independent of IDH1 mutation, suggesting the involvement of other mechanisms. Here, we demonstrate that DNMT1 expression is higher in low-grade gliomas compared to glioblastomas and correlates with phosphorylated c-Jun. We show that phospho-c-Jun binds to the DNMT1 promoter and causes DNA hypermethylation. Phospho-c-Jun activation by Anisomycin treatment in primary glioblastoma-derived cells attenuates the aggressive features of mesenchymal glioblastomas and leads to promoter methylation and downregulation of key mesenchymal genes (CD44, MMP9 and CHI3L1). Our findings suggest that phospho-c-Jun activates an important regulatory mechanism to control DNMT1 expression and regulate global DNA methylation in Glioblastoma.
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Affiliation(s)
- Dieter H Heiland
- Department of Neurosurgery, Medical Center - University of Freiburg, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Roberto Ferrarese
- Department of Neurosurgery, Medical Center - University of Freiburg, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Rainer Claus
- Department of Hematology, Oncology, and Stem Cell Transplantation, University of Freiburg Medical Center, Freiburg, Germany
| | - Fangping Dai
- Department of Neurosurgery, Medical Center - University of Freiburg, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Anie P Masilamani
- Department of Neurosurgery, Medical Center - University of Freiburg, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Eva Kling
- Department of Neurosurgery, Medical Center - University of Freiburg, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Astrid Weyerbrock
- Department of Neurosurgery, Medical Center - University of Freiburg, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Teresia Kling
- Department of Immunology, Genetics and Pathology and Science for Life Laboratories, University of Uppsala, Uppsala, Sweden
| | - Sven Nelander
- Department of Immunology, Genetics and Pathology and Science for Life Laboratories, University of Uppsala, Uppsala, Sweden
| | - Maria S Carro
- Department of Neurosurgery, Medical Center - University of Freiburg, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
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Fedele V, Dai F, Masilamani AP, Heiland DH, Kling E, Gätjens-Sanchez AM, Ferrarese R, Platania L, Soroush D, Kim H, Nelander S, Weyerbrock A, Prinz M, Califano A, Iavarone A, Bredel M, Carro MS. Epigenetic Regulation of ZBTB18 Promotes Glioblastoma Progression. Mol Cancer Res 2017; 15:998-1011. [PMID: 28512252 PMCID: PMC5967621 DOI: 10.1158/1541-7786.mcr-16-0494] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [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: 12/28/2016] [Revised: 04/07/2017] [Accepted: 05/12/2017] [Indexed: 12/31/2022]
Abstract
Glioblastoma (GBM) comprises distinct subtypes characterized by their molecular profile. Mesenchymal identity in GBM has been associated with a comparatively unfavorable prognosis, primarily due to inherent resistance of these tumors to current therapies. The identification of molecular determinants of mesenchymal transformation could potentially allow for the discovery of new therapeutic targets. Zinc Finger and BTB Domain Containing 18 (ZBTB18/ZNF238/RP58) is a zinc finger transcriptional repressor with a crucial role in brain development and neuronal differentiation. Here, ZBTB18 is primarily silenced in the mesenchymal subtype of GBM through aberrant promoter methylation. Loss of ZBTB18 contributes to the aggressive phenotype of glioblastoma through regulation of poor prognosis-associated signatures. Restitution of ZBTB18 expression reverses the phenotype and impairs tumor-forming ability. These results indicate that ZBTB18 functions as a tumor suppressor in GBM through the regulation of genes associated with phenotypically aggressive properties.Implications: This study characterizes the role of the putative tumor suppressor ZBTB18 and its regulation by promoter hypermethylation, which appears to be a common mechanism to silence ZBTB18 in the mesenchymal subtype of GBM and provides a new mechanistic opportunity to specifically target this tumor subclass. Mol Cancer Res; 15(8); 998-1011. ©2017 AACR.
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Affiliation(s)
- Vita Fedele
- Dept. of Neurosurgery, Medical Center – University of Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Germany
| | - Fangping Dai
- Dept. of Neurosurgery, Medical Center – University of Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Germany
| | - Anie Priscilla Masilamani
- Dept. of Neurosurgery, Medical Center – University of Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Germany
| | - Dieter Henrik Heiland
- Dept. of Neurosurgery, Medical Center – University of Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Germany
| | - Eva Kling
- Dept. of Neurosurgery, Medical Center – University of Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Germany
| | - Ana Maria Gätjens-Sanchez
- Dept. of Neurosurgery, Medical Center – University of Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Germany
| | - Roberto Ferrarese
- Dept. of Neurosurgery, Medical Center – University of Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Germany
| | - Leonardo Platania
- Dept. of Neurosurgery, Medical Center – University of Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Germany
| | - Doostkam Soroush
- Institute of Neuropathology, Neurocenter, and Comprehensive Cancer Center, University of Freiburg, D-79106 Freiburg, BIOSS Centre for Biological Signalling Studies, University of Freiburg, Germany
| | - Hyunsoo Kim
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA
| | - Sven Nelander
- Department of Immunology, Genetics and Pathology and Science for Life Laboratories, University of Uppsala, Uppsala, 75105, Sweden
| | - Astrid Weyerbrock
- Dept. of Neurosurgery, Medical Center – University of Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Germany
| | - Marco Prinz
- Institute of Neuropathology, Neurocenter, and Comprehensive Cancer Center, University of Freiburg, D-79106 Freiburg, BIOSS Centre for Biological Signalling Studies, University of Freiburg, Germany
| | - Andrea Califano
- Institute for Cancer Genetics, Columbia University, New York, NY 10032, USA
- Department of Biomedical Informatics, Columbia University, New York, NY 10032, USA
- Department of Systems Biology, Columbia University, New York, NY 10032, USA
| | - Antonio Iavarone
- Institute for Cancer Genetics, Columbia University, New York, NY 10032, USA
- Department of Pathology, Columbia University Medical Center, New York, New York, USA
- Department of Neurology, Columbia University Medical Center, New York, New York, USA
| | - Markus Bredel
- Department of Radiation Oncology, Comprehensive Cancer Center, University of Alabama at Birmingham School of Medicine, Birmingham, AL 35249, USA
- Department of Neurosurgery, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Maria Stella Carro
- Dept. of Neurosurgery, Medical Center – University of Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Germany
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Cosorich I, Dalla-Costa G, Sorini C, Ferrarese R, Messina MJ, Dolpady J, Radice E, Mariani A, Testoni PA, Canducci F, Comi G, Martinelli V, Falcone M. High frequency of intestinal T H17 cells correlates with microbiota alterations and disease activity in multiple sclerosis. Sci Adv 2017; 3:e1700492. [PMID: 28706993 PMCID: PMC5507635 DOI: 10.1126/sciadv.1700492] [Citation(s) in RCA: 183] [Impact Index Per Article: 26.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 06/09/2017] [Indexed: 05/17/2023]
Abstract
T helper 17 (TH17) cells are key players in multiple sclerosis (MS), and studies in animal models demonstrated that effector TH17 cells that trigger brain autoimmunity originate in the intestine. We validate in humans the crucial role of the intestinal environment in promoting TH17 cell expansion in MS patients. We found that increased frequency of TH17 cells correlates with high disease activity and with specific alterations of the gut mucosa-associated microbiota in MS patients. By using 16S ribosomal RNA sequencing, we analyzed the microbiota isolated from small intestinal tissues and found that MS patients with high disease activity and increased intestinal TH17 cell frequency showed a higher Firmicutes/Bacteroidetes ratio, increased relative abundance of Streptococcus, and decreased Prevotella strains compared to healthy controls and MS patients with no disease activity. We demonstrated that the intestinal TH17 cell frequency is inversely related to the relative abundance of Prevotella strains in the human small intestine. Our data demonstrate that brain autoimmunity is associated with specific microbiota modifications and excessive TH17 cell expansion in the human intestine.
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Affiliation(s)
- Ilaria Cosorich
- Division of Immunology, Transplantation and Infectious Diseases, IRCCS (Istituto di Ricerca e Cura a carattere Scientifico) San Raffaele Scientific Institute, 20132 Milan, Italy
- Vita-Salute San Raffaele University, 20132 Milan, Italy
| | - Gloria Dalla-Costa
- Clinical Neurology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Chiara Sorini
- Division of Immunology, Transplantation and Infectious Diseases, IRCCS (Istituto di Ricerca e Cura a carattere Scientifico) San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Roberto Ferrarese
- Microbiology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Maria Josè Messina
- Clinical Neurology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Jayashree Dolpady
- Division of Immunology, Transplantation and Infectious Diseases, IRCCS (Istituto di Ricerca e Cura a carattere Scientifico) San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Elisa Radice
- Gastroenterology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Alberto Mariani
- Gastroenterology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Pier Alberto Testoni
- Gastroenterology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Filippo Canducci
- Microbiology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Giancarlo Comi
- Clinical Neurology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Vittorio Martinelli
- Clinical Neurology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Marika Falcone
- Division of Immunology, Transplantation and Infectious Diseases, IRCCS (Istituto di Ricerca e Cura a carattere Scientifico) San Raffaele Scientific Institute, 20132 Milan, Italy
- Corresponding author.
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41
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Pellegrini S, Sordi V, Bolla AM, Saita D, Ferrarese R, Canducci F, Clementi M, Invernizzi F, Mariani A, Bonfanti R, Barera G, Testoni PA, Doglioni C, Bosi E, Piemonti L. Duodenal Mucosa of Patients With Type 1 Diabetes Shows Distinctive Inflammatory Profile and Microbiota. J Clin Endocrinol Metab 2017; 102:1468-1477. [PMID: 28324102 DOI: 10.1210/jc.2016-3222] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Accepted: 11/29/2016] [Indexed: 02/04/2023]
Abstract
CONTEXT Increasing evidences suggest a correlation between gut and type 1 diabetes (T1D). OBJECTIVE The objective of this study is to evaluate the gut inflammatory profile and microbiota in patients with T1D compared with healthy control (CTRL) subjects and patients with celiac disease (CD) as gut inflammatory disease controls. DESIGN/SETTING/PARTICIPANTS The inflammatory status and microbiome composition were evaluated in biopsies of the duodenal mucosa of patients with T1D (n = 19), in patients with CD (n = 19), and CTRL subjects (n = 16) recruited at San Raffaele Scientific Institute, in Milan, Italy, between 2009 and 2015. MAIN OUTCOME MEASURES Inflammation was evaluated by gene expression study and immunohistochemistry. Microbiome composition was analyzed by 16S ribosomal RNA gene sequencing. RESULTS An increased expression of CCL13, CCL19, CCL22, CCR2, COX2, IL4R, CD68, PTX3, TNFα, and VEGFA was observed in patients with T1D compared with CTRL subjects and patients with CD. Immunohistochemical analysis confirmed T1D-specific inflammatory status compared with healthy and CD control tissues, mainly characterized by the increase of the monocyte/macrophage lineage infiltration. The T1D duodenal mucosal microbiome results were different from the other groups, with an increase in Firmicutes and Firmicutes/Bacteroidetes ratio and a reduction in Proteobacteria and Bacteroidetes. The expression of genes specific for T1D inflammation was associated with the abundance of specific bacteria in the duodenum. CONCLUSIONS This study shows that duodenal mucosa in T1D presents disease-specific abnormalities in the inflammatory profile and microbiota. Understanding the mechanisms underlying these features is critical to disentangle the complex pathogenesis of T1D and to gain new perspectives for future therapies targeting the intestine.
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MESH Headings
- Adolescent
- Adult
- Aged
- Antigens, CD/genetics
- Antigens, CD/immunology
- Antigens, Differentiation, Myelomonocytic/genetics
- Antigens, Differentiation, Myelomonocytic/immunology
- C-Reactive Protein/genetics
- C-Reactive Protein/immunology
- Case-Control Studies
- Celiac Disease/immunology
- Celiac Disease/microbiology
- Chemokine CCL19/genetics
- Chemokine CCL19/immunology
- Chemokine CCL22/genetics
- Chemokine CCL22/immunology
- Child
- Child, Preschool
- Cyclooxygenase 2/genetics
- Cyclooxygenase 2/immunology
- Diabetes Mellitus, Type 1/genetics
- Diabetes Mellitus, Type 1/immunology
- Diabetes Mellitus, Type 1/microbiology
- Duodenum/immunology
- Duodenum/microbiology
- Female
- Gastrointestinal Microbiome/genetics
- Humans
- Infant
- Interleukin-4 Receptor alpha Subunit/genetics
- Interleukin-4 Receptor alpha Subunit/immunology
- Intestinal Mucosa/immunology
- Intestinal Mucosa/microbiology
- Male
- Middle Aged
- Monocyte Chemoattractant Proteins/genetics
- Monocyte Chemoattractant Proteins/immunology
- RNA, Ribosomal, 16S/genetics
- Real-Time Polymerase Chain Reaction
- Receptors, CCR2/genetics
- Receptors, CCR2/immunology
- Reverse Transcriptase Polymerase Chain Reaction
- Serum Amyloid P-Component/genetics
- Serum Amyloid P-Component/immunology
- Transcriptome
- Tumor Necrosis Factor-alpha/genetics
- Tumor Necrosis Factor-alpha/immunology
- Vascular Endothelial Growth Factor A/genetics
- Vascular Endothelial Growth Factor A/immunology
- Young Adult
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Affiliation(s)
- Silvia Pellegrini
- Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Valeria Sordi
- Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Andrea Mario Bolla
- Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Diego Saita
- Microbiology and Virology Unit, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Roberto Ferrarese
- Microbiology and Virology Unit, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Filippo Canducci
- Microbiology and Virology Unit, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
- Department of Biotechnology and Life Sciences, University of Insubria, Varese 21100, Italy
| | - Massimo Clementi
- Microbiology and Virology Unit, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
- University "Vita-Salute" San Raffaele, Milan 20132, Italy
| | - Francesca Invernizzi
- Pathology Department, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Alberto Mariani
- Gastroenterology and Digestive Endoscopy Unit, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Riccardo Bonfanti
- Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
- Pediatrics and Neonatal Disease Unit, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Graziano Barera
- Pediatrics and Neonatal Disease Unit, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Pier Alberto Testoni
- Gastroenterology and Digestive Endoscopy Unit, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
- University "Vita-Salute" San Raffaele, Milan 20132, Italy
| | - Claudio Doglioni
- Pathology Department, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
- University "Vita-Salute" San Raffaele, Milan 20132, Italy
| | - Emanuele Bosi
- Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
- University "Vita-Salute" San Raffaele, Milan 20132, Italy
| | - Lorenzo Piemonti
- Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
- University "Vita-Salute" San Raffaele, Milan 20132, Italy
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42
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Martini R, Esposito F, Corona A, Ferrarese R, Ceresola ER, Visconti L, Tintori C, Barbieri A, Calcaterra A, Iovine V, Canducci F, Tramontano E, Botta M. Natural Product Kuwanon-L Inhibits HIV-1 Replication through Multiple Target Binding. Chembiochem 2017; 18:374-377. [PMID: 27992102 DOI: 10.1002/cbic.201600592] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Indexed: 12/30/2022]
Abstract
In recent years many advances have been made in the fight against HIV-1 infection. However, the lack of a vaccine, together with the increasing resistance to the highly active anti-retroviral therapy (HAART), make HIV-1 infection still a serious global emergency. Thus, new compounds with original modes of action are continuously required, and natural products have ever been a very interesting class of pharmacologically active molecules. Some of them have been used since ancient times against viral infections. Here we present a work in which we suggest that kuwanon-L, a natural product active as an HIV-1 integrase (IN) inhibitor, might exert its overall antiviral activity through binding to multiple viral targets. Specific enzymatic tests, together with a time-of-addition (TOA) experiment, support our hypothesis of binding both to IN and to reverse transcriptase (RT). Overall, this compound can be considered an attractive lead for the development of new classes of antiviral agents able to overcome the problem of resistance, due to its ability to exert its action by binding simultaneously to multiple viral targets.
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Affiliation(s)
- Riccardo Martini
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100, Siena, Italy
| | - Francesca Esposito
- Department of Life and Environmental Sciences, University of Cagliari, Cittadella Universitaria di Monserrato, SS 554, 09042, Monserrato, Cagliari, Italy
| | - Angela Corona
- Department of Life and Environmental Sciences, University of Cagliari, Cittadella Universitaria di Monserrato, SS 554, 09042, Monserrato, Cagliari, Italy
| | - Roberto Ferrarese
- Laboratory of Microbiology, San Raffaele Hospital, IRCCS, Via Olgettina 58, 20132, Milan, Italy
| | - Elisa Rita Ceresola
- Department of Biotechnology and Life Sciences, University of Insubria, Via Ravasi 2, 21100, Varese, Italy
| | - Laura Visconti
- Laboratory of Microbiology, San Raffaele Hospital, IRCCS, Via Olgettina 58, 20132, Milan, Italy
| | - Cristina Tintori
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100, Siena, Italy
| | - Alessandro Barbieri
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100, Siena, Italy
| | - Andrea Calcaterra
- Department of Chemistry and Technology of Drugs, University of Rome "Sapienza", Piazzale Aldo Moro 5, 00185, Roma, Italy
| | - Valentina Iovine
- Department of Chemistry and Technology of Drugs, University of Rome "Sapienza", Piazzale Aldo Moro 5, 00185, Roma, Italy
| | - Filippo Canducci
- Laboratory of Microbiology, San Raffaele Hospital, IRCCS, Via Olgettina 58, 20132, Milan, Italy.,Department of Biotechnology and Life Sciences, University of Insubria, Via Ravasi 2, 21100, Varese, Italy
| | - Enzo Tramontano
- Department of Life and Environmental Sciences, University of Cagliari, Cittadella Universitaria di Monserrato, SS 554, 09042, Monserrato, Cagliari, Italy
| | - Maurizio Botta
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100, Siena, Italy.,Lead Discovery Siena s.r.l., Via Vittorio Alfieri 31, 53019, Castelnuovo Berardenga, Italy
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43
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Kling T, Ferrarese R, Ó hAilín D, Johansson P, Heiland DH, Dai F, Vasilikos I, Weyerbrock A, Jörnsten R, Carro MS, Nelander S. Integrative Modeling Reveals Annexin A2-mediated Epigenetic Control of Mesenchymal Glioblastoma. EBioMedicine 2016; 12:72-85. [PMID: 27667176 PMCID: PMC5078587 DOI: 10.1016/j.ebiom.2016.08.050] [Citation(s) in RCA: 18] [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] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 08/26/2016] [Accepted: 08/31/2016] [Indexed: 12/02/2022] Open
Abstract
Glioblastomas are characterized by transcriptionally distinct subtypes, but despite possible clinical relevance, their regulation remains poorly understood. The commonly used molecular classification systems for GBM all identify a subtype with high expression of mesenchymal marker transcripts, strongly associated with invasive growth. We used a comprehensive data-driven network modeling technique (augmented sparse inverse covariance selection, aSICS) to define separate genomic, epigenetic, and transcriptional regulators of glioblastoma subtypes. Our model identified Annexin A2 (ANXA2) as a novel methylation-controlled positive regulator of the mesenchymal subtype. Subsequent evaluation in two independent cohorts established ANXA2 expression as a prognostic factor that is dependent on ANXA2 promoter methylation. ANXA2 knockdown in primary glioblastoma stem cell-like cultures suppressed known mesenchymal master regulators, and abrogated cell proliferation and invasion. Our results place ANXA2 at the apex of a regulatory cascade that determines glioblastoma mesenchymal transformation and validate aSICS as a general methodology to uncover regulators of cancer subtypes. Glioblastoma, a form of brain cancer, is characterised by distinct molecular subtypes: proneural, classical and mesenchymal. We used a comprehensive data-driven strategy, aSICS, to elucidate the cellular mechanisms behind the subtypes. Epigenetic control of Annexin A2 (ANXA2) was predicted and confirmed to determine the invasive mesenchymal subtype.
Most cancers have distinct and clinically relevant transcriptional subtypes, but the underlying cellular mechanism behind such subtypes is often hard to resolve. We show that joint analysis across several layers of genomics data can uncover subtype regulators with good accuracy. Our method is applied to the brain cancer glioblastoma multiforme (GBM), revealing that the invasive mesenchymal subtype is driven by epigenetic modulation of the expression of Annexin A2 (ANXA2). Our analysis adds significantly to our understanding of brain cancer subtypes and open for new potential treatment options. The proposed computational technique can be applied to other cancers as well.
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Affiliation(s)
- Teresia Kling
- Sahlgrenska Cancer Center, Department of Pathology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Sweden
| | - Roberto Ferrarese
- Department of Neurosurgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany
| | - Darren Ó hAilín
- Department of Neurosurgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany; Faculty of Biology, Schnzlestrasse 1, University of Freiburg, D-79104 Freiburg, Germany
| | - Patrik Johansson
- Dept of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Rudbecklaboratoriet, SE-751 85 Uppsala, Sweden
| | - Dieter Henrik Heiland
- Department of Neurosurgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany
| | - Fangping Dai
- Department of Neurosurgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany
| | - Ioannis Vasilikos
- Department of Neurosurgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany
| | - Astrid Weyerbrock
- Department of Neurosurgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany
| | - Rebecka Jörnsten
- Mathematical Sciences, University of Gothenburg and Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
| | - Maria Stella Carro
- Department of Neurosurgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany.
| | - Sven Nelander
- Dept of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Rudbecklaboratoriet, SE-751 85 Uppsala, Sweden.
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44
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Raizer JJ, Chandler JP, Ferrarese R, Grimm SA, Levy RM, Muro K, Rosenow J, Helenowski I, Rademaker A, Paton M, Bredel M. A phase II trial evaluating the effects and intra-tumoral penetration of bortezomib in patients with recurrent malignant gliomas. J Neurooncol 2016; 129:139-46. [PMID: 27300524 DOI: 10.1007/s11060-016-2156-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 06/01/2016] [Indexed: 12/23/2022]
Abstract
One resistance mechanism in malignant gliomas (MG) involves nuclear factor-κB (NF-κB) activation. Bortezomib prevents proteasomal degradation of NF-κB inhibitor α (NFKBIA), an endogenous regulator of NF-κB signaling, thereby limiting the effects of NF-κB on tumor survival and resistance. A presurgical phase II trial of bortezomib in recurrent MG was performed to determine drug concentration in tumor tissue and effects on NFKBIA. Patients were enrolled after signing an IRB approved informed consent. Treatment was bortezomib 1.7 mg/m(2) IV on days 1, 4 and 8 and then surgery on day 8 or 9. Post-operatively, treatment was Temozolomide (TMZ) 75 mg/m(2) PO on days 1-7 and 14-21 and bortezomib 1.7 mg/m(2) on days 7 and 21 [1 cycle was (1) month]. Ten patients were enrolled (8 M and 2 F) with 9 having surgery. Median age and KPS were 50 (42-64) and 90 % (70-100). The median cycles post-operatively was 2 (0-4). The trial was stopped as no patient had a PFS-6. All patients are deceased. Paired plasma and tumor bortezomib concentration measurements revealed higher drug concentrations in tumor than in plasma; NFKBIA protein levels were similar in drug-treated vs. drug-naïve tumor specimens. Nuclear 20S proteasome was less in postoperative samples. Postoperative treatment with TMZ and bortezomib did not show clinical activity. Bortezomib appears to sequester in tumor but pharmacological effects on NFKBIA were not seen, possibly obscured due to downregulation of NFKBIA during tumor progression. Changes in nuclear 20S could be marker of bortezomib effect on tumor.
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Affiliation(s)
- Jeffrey J Raizer
- Department of Neurology, Northwestern University, Abbott Hall, Room 1123, 710 N. Lake Shore Dr., Chicago, IL, 60611, USA.
| | - James P Chandler
- Department of Neurosurgery, Northwestern University, Chicago, IL, USA
| | - Roberto Ferrarese
- Department of Neurosurgery, Neurocenter and Comprehensive Cancer Center, University of Freiburg, Freiburg, Germany
| | - Sean A Grimm
- Cadence Health Care-Central DuPage Hospital, Winfield, IL, USA
| | | | - Kenji Muro
- Illinois Masonic Hospital, Chicago, IL, USA
| | - Joshua Rosenow
- Department of Neurosurgery, Northwestern University, Chicago, IL, USA
| | - Irene Helenowski
- Department of Preventive Medicine, Northwestern University, Chicago, IL, USA
| | - Alfred Rademaker
- Department of Preventive Medicine, Northwestern University, Chicago, IL, USA
| | - Martin Paton
- Millennium Pharmaceuticals, Inc, Cambridge, MA, UK
| | - Markus Bredel
- Department of Radiation Oncology and Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL, USA
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45
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Dolpady J, Sorini C, Di Pietro C, Cosorich I, Ferrarese R, Saita D, Clementi M, Canducci F, Falcone M. Oral Probiotic VSL#3 Prevents Autoimmune Diabetes by Modulating Microbiota and Promoting Indoleamine 2,3-Dioxygenase-Enriched Tolerogenic Intestinal Environment. J Diabetes Res 2016; 2016:7569431. [PMID: 26779542 PMCID: PMC4686713 DOI: 10.1155/2016/7569431] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 06/01/2015] [Accepted: 07/01/2015] [Indexed: 02/07/2023] Open
Abstract
The gut microbiota modulates the autoimmune pathogenesis of type 1 diabetes (T1D) via mechanisms that remain largely unknown. The inflammasome components are innate immune sensors that are highly influenced by the gut environment and play pivotal roles in maintaining intestinal immune homeostasis. In this study we show that modifications of the gut microbiota induced by oral treatment with Lactobacillaceae-enriched probiotic VSL#3, alone or in combination with retinoic acid (RA), protect NOD mice from T1D by affecting inflammasome at the intestinal level. In particular, we show that VSL#3 treatment inhibits IL-1β expression while enhancing release of protolerogenic components of the inflammasome, such as indoleamine 2,3-dioxygenase (IDO) and IL-33. Those modifications of the intestinal microenvironment in VSL#3-treated NOD mice modulate gut immunity by promoting differentiation of tolerogenic CD103(+) DCs and reducing differentiation/expansion of Th1 and Th17 cells in the intestinal mucosa and at the sites of autoimmunity, that is, within the pancreatic lymph nodes (PLN) of VSL#3-treated NOD mice. Our data provide a link between dietary factors, microbiota composition, intestinal inflammation, and immune homeostasis in autoimmune diabetes and could pave the way for new therapeutic approaches aimed at changing the intestinal microenvironment with probiotics to counterregulate autoimmunity and prevent T1D.
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MESH Headings
- Administration, Oral
- Age Factors
- Animals
- Autoimmunity
- Cellular Microenvironment
- Diabetes Mellitus, Type 1/enzymology
- Diabetes Mellitus, Type 1/immunology
- Diabetes Mellitus, Type 1/microbiology
- Diabetes Mellitus, Type 1/prevention & control
- Disease Models, Animal
- Gastrointestinal Microbiome
- Indoleamine-Pyrrole 2,3,-Dioxygenase/immunology
- Indoleamine-Pyrrole 2,3,-Dioxygenase/metabolism
- Inflammasomes/immunology
- Inflammasomes/metabolism
- Interleukin-1beta/metabolism
- Interleukin-33/metabolism
- Intestines/enzymology
- Intestines/immunology
- Intestines/microbiology
- Lactobacillaceae/growth & development
- Lactobacillaceae/immunology
- Mice, Inbred NOD
- Probiotics/administration & dosage
- Th1 Cells/immunology
- Th1 Cells/metabolism
- Th1 Cells/microbiology
- Th17 Cells/immunology
- Th17 Cells/metabolism
- Th17 Cells/microbiology
- Tretinoin/pharmacology
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Affiliation(s)
- Jayashree Dolpady
- Experimental Diabetes Unit, Diabetes Research Institute, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy
| | - Chiara Sorini
- Experimental Diabetes Unit, Diabetes Research Institute, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy
| | - Caterina Di Pietro
- Experimental Diabetes Unit, Diabetes Research Institute, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy
| | - Ilaria Cosorich
- Experimental Diabetes Unit, Diabetes Research Institute, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy
| | - Roberto Ferrarese
- Microbiology Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy
| | - Diego Saita
- Microbiology Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy
| | - Massimo Clementi
- Microbiology Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy
| | - Filippo Canducci
- Microbiology Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy
- Department of Biotechnology and Life Sciences, University of Insubria, 21100 Varese, Italy
| | - Marika Falcone
- Experimental Diabetes Unit, Diabetes Research Institute, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy
- *Marika Falcone:
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46
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Esposito F, Tintori C, Martini R, Christ F, Debyser Z, Ferrarese R, Cabiddu G, Corona A, Ceresola ER, Calcaterra A, Iovine V, Botta B, Clementi M, Canducci F, Botta M, Tramontano E. Kuwanon-L as a New Allosteric HIV-1 Integrase Inhibitor: Molecular Modeling and Biological Evaluation. Chembiochem 2015; 16:2507-12. [PMID: 26360521 DOI: 10.1002/cbic.201500385] [Citation(s) in RCA: 32] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Indexed: 12/22/2022]
Abstract
HIV-1 integrase (IN) active site inhibitors are the latest class of drugs approved for HIV treatment. The selection of IN strand-transfer drug-resistant HIV strains in patients supports the development of new agents that are active as allosteric IN inhibitors. Here, a docking-based virtual screening has been applied to a small library of natural ligands to identify new allosteric IN inhibitors that target the sucrose binding pocket. From theoretical studies, kuwanon-L emerged as the most promising binder and was thus selected for biological studies. Biochemical studies showed that kuwanon-L is able to inhibit the HIV-1 IN catalytic activity in the absence and in the presence of LEDGF/p75 protein, the IN dimerization, and the IN/LEDGF binding. Kuwanon-L also inhibited HIV-1 replication in cell cultures. Overall, docking and biochemical results suggest that kuwanon-L binds to an allosteric binding pocket and can be considered an attractive lead for the development of new allosteric IN antiviral agents.
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Affiliation(s)
- Francesca Esposito
- Department of Life and Environmental Sciences, University of Cagliari, Cittadella Universitaria di Monserrato, SS 554, 09042, Monserrato, Cagliari, Italy
| | - Cristina Tintori
- Department of Biotechnologies, Chemical and Pharmacy, University of Siena, via Alcide de Gasperi 2, 53100, Siena, Italy
| | - Riccardo Martini
- Department of Biotechnologies, Chemical and Pharmacy, University of Siena, via Alcide de Gasperi 2, 53100, Siena, Italy
| | - Frauke Christ
- Laboratory for Molecular Virology and Gene Therapy, KU Leuven, 3000, Leuven, Flanders, Belgium
| | - Zeger Debyser
- Laboratory for Molecular Virology and Gene Therapy, KU Leuven, 3000, Leuven, Flanders, Belgium
| | - Roberto Ferrarese
- Laboratory of Virology, San Raffaele Hospital, IRCCS, via Olgettina 60, 20132, Milano, Italy
| | - Gianluigi Cabiddu
- Department of Life and Environmental Sciences, University of Cagliari, Cittadella Universitaria di Monserrato, SS 554, 09042, Monserrato, Cagliari, Italy
| | - Angela Corona
- Department of Life and Environmental Sciences, University of Cagliari, Cittadella Universitaria di Monserrato, SS 554, 09042, Monserrato, Cagliari, Italy
| | - Elisa Rita Ceresola
- Laboratory of Virology, San Raffaele Hospital, IRCCS, via Olgettina 60, 20132, Milano, Italy
| | - Andrea Calcaterra
- Dipartimento di Chimica e Tecnologie del Farmaco, Università di Roma "La Sapienza", Piazzale Aldo Moro 5, 00185, Roma, Italy
| | - Valentina Iovine
- Dipartimento di Chimica e Tecnologie del Farmaco, Università di Roma "La Sapienza", Piazzale Aldo Moro 5, 00185, Roma, Italy
| | - Bruno Botta
- Dipartimento di Chimica e Tecnologie del Farmaco, Università di Roma "La Sapienza", Piazzale Aldo Moro 5, 00185, Roma, Italy
| | - Massimo Clementi
- Laboratory of Virology, San Raffaele Hospital, IRCCS, via Olgettina 60, 20132, Milano, Italy
| | - Filippo Canducci
- Laboratory of Virology, San Raffaele Hospital, IRCCS, via Olgettina 60, 20132, Milano, Italy.,Department of Department of Biotechnology and Life Sciences, University of Insubria, via Ravasi 2, 21100, Varese, Italy
| | - Maurizio Botta
- Department of Biotechnologies, Chemical and Pharmacy, University of Siena, via Alcide de Gasperi 2, 53100, Siena, Italy.
| | - Enzo Tramontano
- Department of Life and Environmental Sciences, University of Cagliari, Cittadella Universitaria di Monserrato, SS 554, 09042, Monserrato, Cagliari, Italy.
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47
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Bredel M, Ferrarese R, Thudi NK, Puliyappadamba VK, Bug E, Trummell H, Anderson J, Willey CD, Yang ESH, Beck W, Bonner JA, Carro M. Targeting PTBP1 as a therapeutic strategy to reverse lineage-specific splicing of ANXA7 and ensuing EGFR activation in glioblastoma. J Clin Oncol 2015. [DOI: 10.1200/jco.2015.33.15_suppl.2075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Markus Bredel
- University of Alabama at Birmingham School of Medcn, Birmingham, AL
| | | | - Nanda K. Thudi
- Department of Radiation Oncology, University of Alabama at Birmingham, Birmingham, AL
| | | | - Eva Bug
- University of Freiburg, Freiburg, Germany
| | - Hoa Trummell
- Department of Radiation Oncology, University of Alabama at Birmingham, Birmingham, AL
| | - Joshua Anderson
- University of Alabama at Birmingham Comprehensive Cancer Center, Birmingham, AL
| | | | - Eddy Shih-Hsin Yang
- Department of Radiation Oncology, University of Alabama at Birmingham, Birmingham, AL
| | | | - James A. Bonner
- University of Alabama at Birmingham, Comprehensive Cancer Center, Department of Radiation Oncology, Birmingham, AL
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48
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Ceresola ER, Nozza S, Sampaolo M, Pignataro AR, Saita D, Ferrarese R, Ripa M, Deng W, Mullins JI, Boeri E, Tambussi G, Toniolo A, Lazzarin A, Clementi M, Canducci F. Performance of commonly used genotypic assays and comparison with phenotypic assays of HIV-1 coreceptor tropism in acutely HIV-1-infected patients. J Antimicrob Chemother 2015; 70:1391-5. [PMID: 25608585 DOI: 10.1093/jac/dku573] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 12/27/2014] [Indexed: 01/20/2023] Open
Abstract
OBJECTIVES Although founder viruses in primary HIV-1 infections (PHIs) typically use the CCR5 coreceptor (R5-tropic), 3%-19% of subjects also harbour CXCR4-using viruses (X4-tropic), making tropism determination before CCR5 antagonist usage mandatory. Genotypic methods can be used to accurately determine HIV-1 tropism in chronically infected patients. METHODS We compared the results of genotypic methods [geno2pheno, PSSMx4r5 including a novel nucleotide-input version (ntPSSM) and distant segments (ds)Kernel] to predict coreceptor usage in a cohort of 67 PHIs. Specimens with discrepant results were phenotypically tested after cloning the V3 gene region into proviral backbones. Recombinant viruses were used to infect U87 indicator cell lines bearing CD4 and either CCR5 or CXCR4. RESULTS Geno2pheno10%, PSSMx4r5 and (ds)Kernel gave identical predictions in 85% of cases. Geno2pheno10% predicted the presence of CXCR4 viruses in 18% of patients. Two patients were predicted to carry X4-tropic viruses by all algorithms and X4-tropic viruses were detected in at least one of the recombinant AD8 or NL4-3 backbone-based assays. Ten samples resulted in discordant predictions with at least one algorithm. Full concordance between tropism prediction by using population sequencing and phenotypic assays was observed only with ntPSSM. Geno2pheno prediction and the phenotypic assay gave the same results in a minority of 'discordant' patients. CONCLUSIONS Compared with both PSSMx4r5 versions, (ds)Kernel and our phenotypic assay, geno2pheno10% overestimated the frequency of X4-tropic viruses (18% versus 3%). ntPSSM was able to detect one additional X4 virus compared with (ds)Kernel that was confirmed with the phenotypic assay.
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Affiliation(s)
- Elisa Rita Ceresola
- University Vita-Salute San Raffaele, Milan, Italy Laboratory of Microbiology, Ospedale San Raffaele, IRCCS, Milan, Italy
| | - Silvia Nozza
- Department of Infectious and Tropical Diseases, Ospedale San Raffaele, IRCCS, Milan, Italy
| | - Michela Sampaolo
- Laboratory of Microbiology, Ospedale San Raffaele, IRCCS, Milan, Italy
| | | | - Diego Saita
- Laboratory of Microbiology, Ospedale San Raffaele, IRCCS, Milan, Italy
| | - Roberto Ferrarese
- Laboratory of Microbiology, Ospedale San Raffaele, IRCCS, Milan, Italy
| | - Marco Ripa
- Department of Infectious and Tropical Diseases, Ospedale San Raffaele, IRCCS, Milan, Italy
| | - Wenjie Deng
- Department of Microbiology, University of Washington, Seattle, WA, USA
| | - James I Mullins
- Department of Microbiology, University of Washington, Seattle, WA, USA
| | - Enzo Boeri
- Laboratory of Microbiology, Ospedale San Raffaele, IRCCS, Milan, Italy
| | - Giuseppe Tambussi
- Department of Infectious and Tropical Diseases, Ospedale San Raffaele, IRCCS, Milan, Italy
| | - Antonio Toniolo
- University of Insubria Medical School, Department of Biotechnology and Life Sciences, Varese, Italy
| | - Adriano Lazzarin
- University Vita-Salute San Raffaele, Milan, Italy Department of Infectious and Tropical Diseases, Ospedale San Raffaele, IRCCS, Milan, Italy
| | - Massimo Clementi
- University Vita-Salute San Raffaele, Milan, Italy Laboratory of Microbiology, Ospedale San Raffaele, IRCCS, Milan, Italy
| | - Filippo Canducci
- Laboratory of Microbiology, Ospedale San Raffaele, IRCCS, Milan, Italy University of Insubria Medical School, Department of Biotechnology and Life Sciences, Varese, Italy
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49
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Ferrarese R, Bug E, Maticzka D, Reichardt W, Masilamani AP, Dai F, Weyerbrock A, Prinz M, Bredel M, Carro MS. P01.08 * LINEAGE-SPECIFIC SPLICING OF AN ALTERNATIVE EXON OF ANXA7 PROMOTES EGFR SIGNALING ACTIVATION AND TUMOR PROGRESSION IN GLIOBLASTOMA. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou174.101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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50
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Bredel M, Ferrarese R, Harsh GR, Yadav AK, Bug E, Maticzka D, Reichardt W, Masilamani AP, Dai F, Kim H, Hadler M, Scholtens DM, Yu ILY, Beck J, Srinivasasainagendra V, Costa F, Baxan N, Pfeifer D, Elverfeldt DV, Backofen R, Weyerbrock A, Duarte CW, He X, Prinz M, Chandler JP, Vogel H, Chakravarti A, Rich JN, Carro MS. ABERRANT SPLICING OF A BRAIN-ENRICHED ALTERNATIVE EXON ELIMINATES TUMOR SUPPRESSOR FUNCTION AND PROMOTES ONCOGENE FUNCTION DURING BRAIN TUMORIGENESIS. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou206.71] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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