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Bernacchi A, Semenzato G, di Mascolo M, Amata S, Bechini A, Berti F, Calonico C, Catania V, Emiliani G, Esposito A, Greco C, Mocali S, Mucci N, Padula A, Piccionello AP, Nasanbat B, Davaakhuu G, Bazarragchaa M, Riga F, Augugliaro C, Puglia AM, Zaccaroni M, Renato F. Antibacterial activity of Arthrobacter strains isolated from Great Gobi A Strictly Protected Area, Mongolia. AIMS Microbiol 2024; 10:161-186. [PMID: 38525036 PMCID: PMC10955175 DOI: 10.3934/microbiol.2024009] [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: 10/27/2023] [Revised: 02/01/2024] [Accepted: 02/22/2024] [Indexed: 03/26/2024] Open
Abstract
Desert soil hosts many microorganisms, whose activities are essential from an ecological viewpoint. Moreover, they are of great anthropic interest. The knowledge of extreme environments microbiomes may be beneficial for agriculture, technology, and human health. In this study, 11 Arthrobacter strains from topsoil samples collected from the Great Gobi A Strictly Protected Area in the Gobi Desert, were characterized by a combination of different techniques. The phylogenetic analysis, performed using their 16S rDNA sequences and the most similar Arthrobacter sequences found in databases, revealed that most of them were close to A. crystallopoietes, while others joined a sister group to the clade formed by A. humicola, A. pascens, and A. oryzae. The resistance of each strain to different antibiotics, heavy-metals, and NaCl was also tested as well as the inhibitory potential against human pathogens (i.e., Burkholderia ssp., Klebsiella pneumoniae, Pseudomonas aeruginosa, and Staphylococcus ssp.) via cross-streaking, to check the production of metabolites with antimicrobial activity. Data obtained revealed that all strains were resistant to heavy metals and were able to strongly interfere with the growth of many of the human pathogens tested. The volatile organic compounds (VOCs) profile of the 11 Arthrobacter strains was also analyzed. A total of 16 different metabolites were found, some of which were already known for having an inhibitory action against different Gram-positive and Gram-negative bacteria. Isolate MS-3A13, producing the highest quantity of VOCs, is the most efficient against Burkholderia cepacia complex (Bcc), K. pneumoniae, and coagulase-negative Staphylococci (CoNS) strains. This work highlights the importance of understanding microbial populations' phenotypical characteristics and dynamics in extreme environments to uncover the antimicrobial potential of new species and strains.
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Affiliation(s)
- Alberto Bernacchi
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy
| | - Giulia Semenzato
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy
| | - Manuel di Mascolo
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy
| | - Sara Amata
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies-STEBICEF, University of Palermo, Viale delle Scienze Ed.17, 90128, Palermo, Italy
| | - Angela Bechini
- Department of Health Sciences, University of Florence, viale G.B. Morgagni, 48, 50134 Firenze, Italy
| | - Fabiola Berti
- Department of Health Sciences, University of Florence, viale G.B. Morgagni, 48, 50134 Firenze, Italy
| | - Carmela Calonico
- Department of Health Sciences, University of Florence, viale G.B. Morgagni, 48, 50134 Firenze, Italy
| | - Valentina Catania
- Department of Earth and Sea Science (DiSTeM), University of Palermo, Viale delle Scienze Blg. 16, Palermo, 90128, Italy
| | - Giovanni Emiliani
- Institute for Sustainable Plant Protection (IPSP)—National Research Council (CNR), Via Madonna del Piano 10, Sesto Fiorentino 50019 Florence, Italy
| | - Antonia Esposito
- Council for Agricultural and Economics Research (CREA) – Agriculture and Environment, Via di Lanciola 12/A, Cascine del Riccio, 50125, Florence, Italy
| | - Claudia Greco
- Unit for Conservation Genetics (BIO-CGE), Institute for Environmental Protection and Research, via Ca' Fornacetta, 9, 40064 Ozzano dell'Emilia Bologna, Italy
| | - Stefano Mocali
- Council for Agricultural and Economics Research (CREA) – Agriculture and Environment, Via di Lanciola 12/A, Cascine del Riccio, 50125, Florence, Italy
| | - Nadia Mucci
- Unit for Conservation Genetics (BIO-CGE), Institute for Environmental Protection and Research, via Ca' Fornacetta, 9, 40064 Ozzano dell'Emilia Bologna, Italy
| | - Anna Padula
- Unit for Conservation Genetics (BIO-CGE), Institute for Environmental Protection and Research, via Ca' Fornacetta, 9, 40064 Ozzano dell'Emilia Bologna, Italy
| | - Antonio Palumbo Piccionello
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies-STEBICEF, University of Palermo, Viale delle Scienze Ed.17, 90128, Palermo, Italy
| | - Battogtokh Nasanbat
- Institute of Biology, Mongolian Academy of Sciences, Peace Avenue-54B, Bayanzurkh District, Ulaanbaatar-13330, Mongolia
| | - Gantulga Davaakhuu
- Institute of Biology, Mongolian Academy of Sciences, Peace Avenue-54B, Bayanzurkh District, Ulaanbaatar-13330, Mongolia
| | | | - Francesco Riga
- Italian Institute for Envioronmental Protection and Research, via Vitalino Brancati, 48, 00144, Roma, Italy
| | - Claudio Augugliaro
- Wildlife Initiative, Bayangol, 6th Khoroo, Micro District 10, Ulaanbaatar, 210349, Mongolia
| | | | - Marco Zaccaroni
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy
| | - Fani Renato
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy
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Maggini V, Semenzato G, Gallo E, Nunziata A, Fani R, Firenzuoli F. Antimicrobial Activity of Syzygium aromaticum Essential Oil in Human Health Treatment. Molecules 2024; 29:999. [PMID: 38474510 DOI: 10.3390/molecules29050999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 02/07/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
The use of natural compounds to prevent and treat infective diseases is increasing its importance, especially in the case of multidrug-resistant (MDR) microorganisms-mediated infections. The drug resistance phenomenon is today a global problem, so it is important to have available substances able to counteract MDR infections. Syzygium aromaticum (L.) Merr. & L.M. Perry (commonly called clove) is a spice characterized by several biological properties. Clove essential oil (EO) consists of numerous active molecules, being eugenol as the principal component; however, other compounds that synergize with each other are responsible for the biological properties of the EO. S. aromaticum is traditionally used for bowel and stomach disorders, cold and flu, oral hygiene, tooth decay, and for its analgesic action. Its EO has shown antioxidant, antimicrobial, anti-inflammatory, neuro-protective, anti-stress, anticancer, and anti-nociceptive activities. This review aims to investigate the role of E. S. aromaticum EO in the counteraction of MDR microorganisms responsible for human disorders, diseases, or infections, such as Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Salmonella typhi, Candida albicans, Giardia lamblia, Streptococcus mutans, Porphyromonas gingivalis, and Klebsiella pneumoniae. This study might orient clinical researchers on future therapeutic uses of S. aromaticum EO in the prevention and treatment of infectious diseases.
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Affiliation(s)
- Valentina Maggini
- Center for Integrative Medicine, Careggi University Hospital, University of Florence, 50124 Florence, Italy
| | - Giulia Semenzato
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy
| | - Eugenia Gallo
- Center for Integrative Medicine, Careggi University Hospital, University of Florence, 50124 Florence, Italy
| | - Alessia Nunziata
- Center for Integrative Medicine, Careggi University Hospital, University of Florence, 50124 Florence, Italy
| | - Renato Fani
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy
| | - Fabio Firenzuoli
- Center for Integrative Medicine, Careggi University Hospital, University of Florence, 50124 Florence, Italy
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Esposito A, Del Duca S, Vitali F, Bigiotti G, Mocali S, Semenzato G, Papini A, Santini G, Mucci N, Padula A, Greco C, Nasanbat B, Davaakhuu G, Bazarragchaa M, Riga F, Augugliaro C, Cecchi L, Fani R, Zaccaroni M. The Great Gobi A Strictly Protected Area: Characterization of Soil Bacterial Communities from Four Oases. Microorganisms 2024; 12:320. [PMID: 38399724 PMCID: PMC10891509 DOI: 10.3390/microorganisms12020320] [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: 12/31/2023] [Revised: 01/30/2024] [Accepted: 02/01/2024] [Indexed: 02/25/2024] Open
Abstract
Understanding how microbial communities survive in extreme environmental pressure is critical for interpreting ecological patterns and microbial diversity. Great Gobi A Strictly Protected Area represents an intriguing model for studying the bacterial community since it is a protected and intact wild area of the Mongolian desert. In this work, the composition of a bacterial community of the soil from four oases was characterized by extracting total DNA and sequencing through the Illumina NovaSeq platform. In addition, the soil's chemical and physical properties were determined, and their influence on shaping the microbial communities was evaluated. The results showed a high variability of bacterial composition among oases. Moreover, combining specific chemical and physical parameters significantly shapes the bacterial community among oases. Data obtained suggested that the oases were highly variable in physiochemical parameters and bacterial communities despite the similar extreme climate conditions. Moreover, core functional microbiome were constituted by aerobic chemoheterotrophy and chemoheterotrophy, mainly contributed by the most abundant bacteria, such as Actinobacteriota, Pseudomonadota, and Firmicutes. This result supposes a metabolic flexibility for sustaining life in deserts. Furthermore, as the inhabitants of the extreme regions are likely to produce new chemical compounds, isolation of key taxa is thus encouraged.
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Affiliation(s)
- Antonia Esposito
- Council for Agricultural Research and Economics, Research Centre for Agriculture and Environment, 50125 Florence, Italy; (A.E.); (S.D.D.); (F.V.); (G.B.); (S.M.)
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy; (G.S.); (A.P.); (G.S.)
| | - Sara Del Duca
- Council for Agricultural Research and Economics, Research Centre for Agriculture and Environment, 50125 Florence, Italy; (A.E.); (S.D.D.); (F.V.); (G.B.); (S.M.)
| | - Francesco Vitali
- Council for Agricultural Research and Economics, Research Centre for Agriculture and Environment, 50125 Florence, Italy; (A.E.); (S.D.D.); (F.V.); (G.B.); (S.M.)
| | - Gaia Bigiotti
- Council for Agricultural Research and Economics, Research Centre for Agriculture and Environment, 50125 Florence, Italy; (A.E.); (S.D.D.); (F.V.); (G.B.); (S.M.)
| | - Stefano Mocali
- Council for Agricultural Research and Economics, Research Centre for Agriculture and Environment, 50125 Florence, Italy; (A.E.); (S.D.D.); (F.V.); (G.B.); (S.M.)
| | - Giulia Semenzato
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy; (G.S.); (A.P.); (G.S.)
| | - Alessio Papini
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy; (G.S.); (A.P.); (G.S.)
| | - Giacomo Santini
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy; (G.S.); (A.P.); (G.S.)
| | - Nadia Mucci
- Unit for Conservation Genetics (BIO-CGE), Institute for Environmental Protection and Research, Via Ca’ Fornacetta, 9, Ozzano dell’Emilia, 40064 Bologna, Italy; (N.M.); (A.P.); (C.G.)
| | - Anna Padula
- Unit for Conservation Genetics (BIO-CGE), Institute for Environmental Protection and Research, Via Ca’ Fornacetta, 9, Ozzano dell’Emilia, 40064 Bologna, Italy; (N.M.); (A.P.); (C.G.)
| | - Claudia Greco
- Unit for Conservation Genetics (BIO-CGE), Institute for Environmental Protection and Research, Via Ca’ Fornacetta, 9, Ozzano dell’Emilia, 40064 Bologna, Italy; (N.M.); (A.P.); (C.G.)
| | - Battogtokh Nasanbat
- Institute of Biology, Mongolian Academy of Sciences, Peace Avenue-54B, Bayanzurkh District, Ulaanbaatar 13330, Mongolia; (B.N.); (G.D.)
| | - Gantulga Davaakhuu
- Institute of Biology, Mongolian Academy of Sciences, Peace Avenue-54B, Bayanzurkh District, Ulaanbaatar 13330, Mongolia; (B.N.); (G.D.)
| | - Munkhtsetseg Bazarragchaa
- Department of Molecular Biology and Genetics, School of Bio-Medicine, Mongolian National University of Medical Sciences, Ulaanbaatar 14210, Mongolia;
| | - Francesco Riga
- Italian Institute for Environmental Protection and Research (ISPRA), Via Brancati 48, 00144 Rome, Italy;
| | | | - Lorenzo Cecchi
- Natural History Museum, Botanical Collections “Filippo Parlatore”—Via Giorgio la Pira 4, 50121 Florence, Italy;
| | - Renato Fani
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy; (G.S.); (A.P.); (G.S.)
| | - Marco Zaccaroni
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy; (G.S.); (A.P.); (G.S.)
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Vitali F, Frascella A, Semenzato G, Del Duca S, Palumbo Piccionello A, Mocali S, Fani R, Emiliani G. Employing Genome Mining to Unveil a Potential Contribution of Endophytic Bacteria to Antimicrobial Compounds in the Origanum vulgare L. Essential Oil. Antibiotics (Basel) 2023; 12:1179. [PMID: 37508275 PMCID: PMC10376600 DOI: 10.3390/antibiotics12071179] [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: 05/05/2023] [Revised: 07/04/2023] [Accepted: 07/06/2023] [Indexed: 07/30/2023] Open
Abstract
Essential oils (EOs) from medicinal plants have long been used in traditional medicine for their widely known antimicrobial properties and represent a promising reservoir of bioactive compounds against multidrug-resistant pathogens. Endophytes may contribute to the yield and composition of EOs, representing a useful tool for biotechnological applications. In this work, we investigated the genomic basis of this potential contribution. The annotated genomes of four endophytic strains isolated from Origanum vulgare L. were used to obtain KEGG ortholog codes, which were used for the annotation of different pathways in KEGG, and to evaluate whether endophytes might harbor the (complete) gene sets for terpene and/or plant hormone biosynthesis. All strains possessed ortholog genes for the mevalonate-independent pathway (MEP/DOXP), allowing for the production of isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP) precursors. Ortholog genes for the next steps in terpenoid biosynthesis were scarce. All the strains possess potential plant growth promotion (PGP) ability, as shown by the presence of orthologous genes involved in the biosynthesis of indoleacetic acid. The main contribution of endophytes to the yield and composition of O. vulgare EO very likely resides in their PGP activities and in the biosynthesis of precursors of bioactive compounds.
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Affiliation(s)
- Francesco Vitali
- Research Centre for Agriculture and Environment, Council for Agricultural Research and Economics (CREA-AA), Via di Lanciola 12/A, 50125 Cascine del Riccio, Italy
| | - Arcangela Frascella
- Institute for Sustainable Plant Protection (IPSP), National Research Council (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy
| | - Giulia Semenzato
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019 Sesto Fiorentino, Italy
| | - Sara Del Duca
- Research Centre for Agriculture and Environment, Council for Agricultural Research and Economics (CREA-AA), Via di Lanciola 12/A, 50125 Cascine del Riccio, Italy
| | - Antonio Palumbo Piccionello
- Department of Biological Chemical and Pharmaceutical Sciences and Technologies, University of Palermo, Viale delle Scienze Ed.17, 90128 Palermo, Italy
| | - Stefano Mocali
- Research Centre for Agriculture and Environment, Council for Agricultural Research and Economics (CREA-AA), Via di Lanciola 12/A, 50125 Cascine del Riccio, Italy
| | - Renato Fani
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019 Sesto Fiorentino, Italy
| | - Giovanni Emiliani
- Institute for Sustainable Plant Protection (IPSP), National Research Council (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy
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Del Duca S, Vassallo A, Semenzato G, Fani R. Mimicking the last step of gene elongation: hints from the bacterial hisF gene. Gene 2023:147533. [PMID: 37279865 DOI: 10.1016/j.gene.2023.147533] [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: 02/23/2023] [Revised: 05/05/2023] [Accepted: 05/31/2023] [Indexed: 06/08/2023]
Abstract
Gene elongation consists in an in-tandem duplication of a gene and divergence and fusion of the two copies, resulting in a gene constituted by two divergent paralogous modules. Many present-day proteins show internal repeats of amino acid sequences, generated by gene elongation events; however, gene elongation is still a poorly studied evolutionary molecular mechanism. The most documented case is that of the histidine biosynthetic genes hisA and hisF, which derive from the gene elongation of an ancestral gene half the size of the extant ones. The aim of this work was to experimentally simulate the possible last step of the gene elongation event occurred during hisF gene evolution under selective pressure conditions. Azospirillum brasilense hisF gene, carrying a single nucleotide mutation that generates a stop codon between the two halves of the gene, was used to transform the histidine-auxotrophic Escherichia coli strain FB182 (hisF892). The transformed strain was subjected to selective pressure (i.e., low concentration/absence of histidine in the growth medium) and the obtained mutants were characterized. The restoration of prototrophy was strongly dependent on the time of incubation and on the strength of the selective pressure. The mutations involved the introduced stop codon with a single base substitution and none of the mutants restored the wild-type codon. Possible correlations between the different mutations and i) E. coli codon usage, ii) three-dimensional structures of the mutated HisF proteins, and iii) growth ability of the mutants were investigated. On the contrary, when the experiment was repeated by mutating a more conserved codon, only a synonymous substitution was obtained. Thus, experiments performed in this study allowed to mimic a possible gene elongation event occurred during the evolution of hisF gene, evidencing the ability of bacterial cells to modify their genome in short times under selective conditions.
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Affiliation(s)
- Sara Del Duca
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019, Sesto Fiorentino (FI), Italy; Research Centre for Agriculture and Environment, Council for Agricultural Research and Economics (CREA-AA), Via di Lanciola 12/A, 50125, Cascine del Riccio (FI), Italy
| | - Alberto Vassallo
- School of Biosciences and Veterinary Medicine, University of Camerino, Via Gentile III Da Varano 1, 62032, Camerino (MC) Italy
| | - Giulia Semenzato
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019, Sesto Fiorentino (FI), Italy
| | - Renato Fani
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019, Sesto Fiorentino (FI), Italy.
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Del Duca S, Semenzato G, Esposito A, Liò P, Fani R. The Operon as a Conundrum of Gene Dynamics and Biochemical Constraints: What We Have Learned from Histidine Biosynthesis. Genes (Basel) 2023; 14:genes14040949. [PMID: 37107707 PMCID: PMC10138114 DOI: 10.3390/genes14040949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 04/04/2023] [Accepted: 04/20/2023] [Indexed: 04/29/2023] Open
Abstract
Operons represent one of the leading strategies of gene organization in prokaryotes, having a crucial influence on the regulation of gene expression and on bacterial chromosome organization. However, there is no consensus yet on why, how, and when operons are formed and conserved, and many different theories have been proposed. Histidine biosynthesis is a highly studied metabolic pathway, and many of the models suggested to explain operons origin and evolution can be applied to the histidine pathway, making this route an attractive model for the study of operon evolution. Indeed, the organization of his genes in operons can be due to a progressive clustering of biosynthetic genes during evolution, coupled with a horizontal transfer of these gene clusters. The necessity of physical interactions among the His enzymes could also have had a role in favoring gene closeness, of particular importance in extreme environmental conditions. In addition, the presence in this pathway of paralogous genes, heterodimeric enzymes and complex regulatory networks also support other operon evolution hypotheses. It is possible that histidine biosynthesis, and in general all bacterial operons, may result from a mixture of several models, being shaped by different forces and mechanisms during evolution.
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Affiliation(s)
- Sara Del Duca
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019 Sesto Fiorentino, Italy
- Council for Agricultural Research and Economics, Research Centre for Agriculture and Environment (CREA-AA), Via di Lanciola 12/A, Cascine del Riccio, 50125 Firenze, Italy
| | - Giulia Semenzato
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019 Sesto Fiorentino, Italy
| | - Antonia Esposito
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019 Sesto Fiorentino, Italy
- Council for Agricultural Research and Economics, Research Centre for Agriculture and Environment (CREA-AA), Via di Lanciola 12/A, Cascine del Riccio, 50125 Firenze, Italy
| | - Pietro Liò
- Department of Computer Science and Technology, University of Cambridge, Cambridge CB3 0FD, UK
| | - Renato Fani
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019 Sesto Fiorentino, Italy
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Semenzato G, Faddetta T, Falsini S, Del Duca S, Esposito A, Padula A, Greco C, Mucci N, Zaccaroni M, Puglia AM, Papini A, Fani R. Endophytic Bacteria Associated with Origanum heracleoticum L. (Lamiaceae) Seeds. Microorganisms 2022; 10:microorganisms10102086. [PMID: 36296360 PMCID: PMC9612275 DOI: 10.3390/microorganisms10102086] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 09/27/2022] [Revised: 10/17/2022] [Accepted: 10/19/2022] [Indexed: 11/16/2022] Open
Abstract
Seed-associated microbiota are believed to play a crucial role in seed germination, seedling establishment, and plant growth and fitness stimulation, due to the vertical transmission of a core microbiota from seeds to the next generations. It might be hypothesized that medicinal and aromatic plants could use the seeds as vectors to vertically transfer beneficial endophytes, providing plants with metabolic pathways that could influence phytochemicals production. Here, we investigated the localization, the structure and the composition of the bacterial endophytic population that resides in Origanum heracleoticum L. seeds. Endocellular bacteria, surrounded by a wall, were localized close to the aleurone layer when using light and transmission electron microscopy. From surface-sterilized seeds, cultivable endophytes were isolated and characterized through RAPD analysis and 16S RNA gene sequencing, which revealed the existence of a high degree of biodiversity at the strain level and the predominance of the genus Pseudomonas. Most of the isolates grew in the presence of six selected antibiotics and were able to inhibit the growth of clinical and environmental strains that belong to the Burkholderia cepacia complex. The endophytes production of antimicrobial compounds could suggest their involvement in plant secondary metabolites production and might pave the way to endophytes exploitation in the pharmaceutical field.
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Affiliation(s)
- Giulia Semenzato
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy
| | - Teresa Faddetta
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies-STEBICEF, University of Palermo, Viale delle Scienze Ed. 17, 90128 Palermo, Italy
| | - Sara Falsini
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy
| | - Sara Del Duca
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy
| | - Antonia Esposito
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy
| | - Anna Padula
- Unit for Conservation Genetics (BIO-CGE), Institute for Environmental Protection and Research, Via Ca’ Fornacetta, 9, Ozzano dell’Emilia, 40064 Bologna, Italy
| | - Claudia Greco
- Unit for Conservation Genetics (BIO-CGE), Institute for Environmental Protection and Research, Via Ca’ Fornacetta, 9, Ozzano dell’Emilia, 40064 Bologna, Italy
| | - Nadia Mucci
- Unit for Conservation Genetics (BIO-CGE), Institute for Environmental Protection and Research, Via Ca’ Fornacetta, 9, Ozzano dell’Emilia, 40064 Bologna, Italy
| | - Marco Zaccaroni
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy
| | - Anna Maria Puglia
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies-STEBICEF, University of Palermo, Viale delle Scienze Ed. 17, 90128 Palermo, Italy
| | - Alessio Papini
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy
| | - Renato Fani
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy
- Correspondence:
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Semenzato G, Alonso-Vásquez T, Del Duca S, Vassallo A, Riccardi C, Zaccaroni M, Mucci N, Padula A, Emiliani G, Palumbo Piccionello A, Puglia AM, Fani R. Genomic Analysis of Endophytic Bacillus-Related Strains Isolated from the Medicinal Plant Origanum vulgare L. Revealed the Presence of Metabolic Pathways Involved in the Biosynthesis of Bioactive Compounds. Microorganisms 2022; 10:microorganisms10050919. [PMID: 35630363 PMCID: PMC9145963 DOI: 10.3390/microorganisms10050919] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/20/2022] [Accepted: 04/25/2022] [Indexed: 12/26/2022] Open
Abstract
Multidrug-resistant pathogens represent a serious threat to human health. The inefficacy of traditional antibiotic drugs could be surmounted through the exploitation of natural bioactive compounds of which medicinal plants are a great reservoir. The finding that bacteria living inside plant tissues, (i.e., the endophytic bacterial microbiome) can influence the synthesis of the aforementioned compounds leads to the necessity of unraveling the mechanisms involved in the determination of this symbiotic relationship. Here, we report the genome sequence of four endophytic bacterial strains isolated from the medicinal plant Origanum vulgare L. and able to antagonize the growth of opportunistic pathogens of cystic fibrosis patients. The in silico analysis revealed the presence of gene clusters involved in the production of antimicrobial compounds, such as paeninodin, paenilarvins, polymyxin, and paenicidin A. Endophytes’ adaptation to the plant microenvironment was evaluated through the analysis of the presence of antibiotic resistance genes in the four genomes. The diesel fuel degrading potential was also tested. Strains grew in minimum media supplemented with diesel fuel, but no n-alkanes degradation genes were found in their genomes, suggesting that diesel fuel degradation might occur through other steps involving enzymes catalyzing the oxidation of aromatic compounds.
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Affiliation(s)
- Giulia Semenzato
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy; (G.S.); (T.A.-V.); (S.D.D.); (A.V.); (C.R.); (M.Z.)
| | - Tania Alonso-Vásquez
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy; (G.S.); (T.A.-V.); (S.D.D.); (A.V.); (C.R.); (M.Z.)
| | - Sara Del Duca
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy; (G.S.); (T.A.-V.); (S.D.D.); (A.V.); (C.R.); (M.Z.)
| | - Alberto Vassallo
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy; (G.S.); (T.A.-V.); (S.D.D.); (A.V.); (C.R.); (M.Z.)
| | - Christopher Riccardi
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy; (G.S.); (T.A.-V.); (S.D.D.); (A.V.); (C.R.); (M.Z.)
| | - Marco Zaccaroni
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy; (G.S.); (T.A.-V.); (S.D.D.); (A.V.); (C.R.); (M.Z.)
| | - Nadia Mucci
- Institute for Environmental Protection and Research, Via Ca’ Fornacetta 9, Ozzano dell’Emilia, 40064 Bologna, Italy; (N.M.); (A.P.)
| | - Anna Padula
- Institute for Environmental Protection and Research, Via Ca’ Fornacetta 9, Ozzano dell’Emilia, 40064 Bologna, Italy; (N.M.); (A.P.)
| | - Giovanni Emiliani
- Institute for Sustainable Plant Protection (IPSP), National Research Council (CNR), Via Madonna del Piano 10, Sesto Fiorentino, 50019 Florence, Italy;
| | - Antonio Palumbo Piccionello
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies-STEBICEF, University of Palermo, Viale delle Scienze Ed.17, 90128 Palermo, Italy; (A.P.P.); (A.M.P.)
| | - Anna Maria Puglia
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies-STEBICEF, University of Palermo, Viale delle Scienze Ed.17, 90128 Palermo, Italy; (A.P.P.); (A.M.P.)
| | - Renato Fani
- Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino, 50019 Florence, Italy; (G.S.); (T.A.-V.); (S.D.D.); (A.V.); (C.R.); (M.Z.)
- Correspondence: ; Tel.: +39-0554574742
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Vicenzetto C, Calabretto G, Barilà G, Gasparini V, Teramo A, Trimarco V, Carraro S, Tonini A, Semenzato G, Zambello R, Facco M. Topic: AS01-Diagnosis/AS01b-Flow cytometry. Leuk Res 2021. [DOI: 10.1016/j.leukres.2021.106681.2] [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: 11/27/2022]
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Calabretto G, Attardi E, Teramo A, Trimarco V, Barilà G, Vicenzetto C, Gasparini V, Massarotti L, Niscola P, Giai V, Poloni A, Finelli C, Mossuto S, Facco M, Vianello F, Semenzato G, Santini V, Zambello R. Topic: AS04-MDS Biology and Pathogenesis/AS04h-Immune deregulation. Leuk Res 2021. [DOI: 10.1016/j.leukres.2021.106680.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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11
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Zambello R, Barilà G, Teramo A, Calabretto G, Vicenzetto C, Gasparini V, Pavan L, Leoncin M, Facco M, Semenzato G. CLINICAL AND BIOLOGICAL PREDICTORS OF OUTCOME IN LARGE GRANULAR LYMPHOCYTE LEUKEMIA: A SINGLE CENTER EXPERIENCE OF 205 PATIENTS. Hematol Oncol 2019. [DOI: 10.1002/hon.97_2630] [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: 11/06/2022]
Affiliation(s)
- R. Zambello
- Department of Medicine (DIMED); Hematology and Clinical Immunology Section, Padua University School of Medicine; Padua Italy
| | - G. Barilà
- Department of Medicine (DIMED); Hematology and Clinical Immunology Section, Padua University School of Medicine; Padua Italy
| | - A. Teramo
- Department of Medicine (DIMED); Hematology and Clinical Immunology Section, Padua University School of Medicine; Padua Italy
| | - G. Calabretto
- Department of Medicine (DIMED); Hematology and Clinical Immunology Section, Padua University School of Medicine; Padua Italy
| | - C. Vicenzetto
- Department of Medicine (DIMED); Hematology and Clinical Immunology Section, Padua University School of Medicine; Padua Italy
| | - V.R. Gasparini
- Department of Medicine (DIMED); Hematology and Clinical Immunology Section, Padua University School of Medicine; Padua Italy
| | - L. Pavan
- Department of Medicine (DIMED); Hematology and Clinical Immunology Section, Padua University School of Medicine; Padua Italy
| | - M. Leoncin
- Department of Medicine (DIMED); Hematology and Clinical Immunology Section, Padua University School of Medicine; Padua Italy
| | - M. Facco
- Department of Medicine (DIMED); Hematology and Clinical Immunology Section, Padua University School of Medicine; Padua Italy
| | - G. Semenzato
- Department of Medicine (DIMED); Hematology and Clinical Immunology Section, Padua University School of Medicine; Padua Italy
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Chilosi M, Pizzolo G, Semenzato G, Cetto GL. Detection of a Soluble form of the Receptor for Interleukin 2 in the Serum of Patients with Hairy Cell Leukaemia. Int J Biol Markers 2018; 1:101-4. [PMID: 3123562 DOI: 10.1177/172460088600100208] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The sera of patients with hairy cell leukaemia (HCL) contain a factor which inhibits the binding of anti-IL-2R antibody to its target (activated T lymphocytes). The presence of this factor, which probably corresponds to the soluble form of IL-2R (sIL-2R), can be easily detected using a simple immunocytochemical inhibition assay. In a series of patients with chronic lymphoproliferative diseases the presence of sIL-2R appeared to be specific for HCL, using the sensitivity of our test, since it could not be detected in sera from normal subjects and patients with B-cell lymphocytic leukaemia or Hodgkin's disease. Thus it might be used as an additional tool for characterizing HCL patients.
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Affiliation(s)
- M Chilosi
- Istituto di Anatomia Patologica, Università di Verona, Italy
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Cherata D, Rodriguez-Zanella H, Muraru D, Palermo C, Cucchini U, Aruta P, Carstea D, Zaharie M, Glodeanu A, Carstea A, Bidviene J, Riccoboni D, Semenzato G, Iliceto S, Badano L. P1438Free wall strain analysis allows identification of subclinical right ventricular dysfunction among patients with early cardiotoxicity. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1438] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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14
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Cherata D, Rodriguez-Zanella H, Riccoboni D, Palermo C, Muraru D, Aruta P, Surkova E, Carstea D, Zaharie M, Glodeanu A, Carstea A, Binotto G, Semenzato G, Iliceto S, Badano L. P160Three-dimensional left ventricular global longitudinal strain is as feasible and accurate as two-dimensional global longitudinal strain for subclinical cardiotoxicity surveillance. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p160] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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15
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Nabergoj M, Marinova M, Binotto G, Brugnaro L, Zaninotto M, Plebani M, Semenzato G, Vianello F. Diagnostic and prognostic value of low percentage of glycosylated ferritin in acquired hemophagocytic lymphohistiocytosis: A single-center study. Int J Lab Hematol 2017; 39:620-624. [PMID: 28722256 DOI: 10.1111/ijlh.12713] [Citation(s) in RCA: 16] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Accepted: 06/07/2017] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Hemophagocytic lymphohistiocytosis (HLH) is an aggressive and life-threatening syndrome characterized by an excessive immune activation. Glycosylated ferritin (GF) level has been proposed as highly specific of HLH. METHODS We have studied 12 subjects with HLH according to the HLH-04 trial criteria and 11 patients with a clinical and laboratoristic suspicion of HLH. The percentage of GF was measured by an in-house assay. RESULTS The only biomarkers that were significantly different in the two groups were fraction of GF (P<.001) and the presence of hemophagocytosis in bone marrow (P=.006). Subjects with HLH had significantly lower percentage of GF than patients with other inflammatory conditions mimicking HLH. A fraction of GF ≤20% was strongly consistent with a diagnosis of HLH. CONCLUSIONS Fraction of GF is useful to identify subjects at high risk for early death and therefore in need of early treatment.
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Affiliation(s)
- M Nabergoj
- Department of Medicine, Hematology and Clinical Immunology Unit, University of Padova, Padova, Italy
| | - M Marinova
- Department of Medicine, Laboratory Medicine Unit, University of Padova, Padova, Italy
| | - G Binotto
- Department of Medicine, Hematology and Clinical Immunology Unit, University of Padova, Padova, Italy
| | - L Brugnaro
- Department of Medicine, Hematology and Clinical Immunology Unit, University of Padova, Padova, Italy
| | - M Zaninotto
- Department of Medicine, Laboratory Medicine Unit, University of Padova, Padova, Italy
| | - M Plebani
- Department of Medicine, Laboratory Medicine Unit, University of Padova, Padova, Italy
| | - G Semenzato
- Department of Medicine, Hematology and Clinical Immunology Unit, University of Padova, Padova, Italy
| | - F Vianello
- Department of Medicine, Hematology and Clinical Immunology Unit, University of Padova, Padova, Italy
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Zambello R, Mariotti B, Teramo A, Barilà G, Rossato M, Calabretto G, Vicenzetto C, Ercolin C, Bazzoni F, Semenzato G. MIR146-B expression levels correlate with biological and clinical features in T-LGL leukemia. Hematol Oncol 2017. [DOI: 10.1002/hon.2439_13] [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: 11/06/2022]
Affiliation(s)
- R. Zambello
- Department of Medicine, Hematology and Clinical Immunology Section; Padua University School of Medicine; Padua Italy
| | - B. Mariotti
- Department of Pathology and Diagnostic, Section of General Pathology; Verona University School of Medicine; Verona Italy
| | - A. Teramo
- Department of Medicine, Hematology and Clinical Immunology Section; Padua University School of Medicine; Padua Italy
| | - G. Barilà
- Department of Medicine, Hematology and Clinical Immunology Section; Padua University School of Medicine; Padua Italy
| | - M. Rossato
- Department of Pathology and Diagnostic, Section of General Pathology; Verona University School of Medicine; Verona Italy
| | - G. Calabretto
- Department of Medicine, Hematology and Clinical Immunology Section; Padua University School of Medicine; Padua Italy
| | - C. Vicenzetto
- Department of Medicine, Hematology and Clinical Immunology Section; Padua University School of Medicine; Padua Italy
| | - C. Ercolin
- Department of Medicine, Hematology and Clinical Immunology Section; Padua University School of Medicine; Padua Italy
| | - F. Bazzoni
- Department of Pathology and Diagnostic, Section of General Pathology; Verona University School of Medicine; Verona Italy
| | - G. Semenzato
- Department of Medicine, Hematology and Clinical Immunology Section; Padua University School of Medicine; Padua Italy
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17
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Binotto G, March ED, Quinto A, Nabergoj M, Imbergamo S, Branca A, Berno T, Boscaro E, Castelli M, Riva M, Zambello R, Vianello F, Semenzato G. Expansion of Bone Marrow NK Lymphocytes is Associated with Higher Probability of Response to Azacitidine Treatment and Survival Benefit. Leuk Res 2017. [DOI: 10.1016/s0145-2126(17)30338-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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De March E, Binotto G, Quinto A, Nabergoj M, Gianesello I, Checuz L, Ammirati L, Lessi F, Frison L, Gurrieri C, Zambello R, Vianello F, Adami F, Semenzato G. Incidence, Risk Factors, Impact of Infections on Outcome of MDS, CMML and AML Patients Treated with Azacitidine: Single Centre Experience. Leuk Res 2017. [DOI: 10.1016/s0145-2126(17)30209-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Kanda T, Borizanova A, Borizanova A, Zayat R, Bianco F, Hajdu M, Cherata DA, Ariani R, Sanchez J, Surkova E, Kalcik M, Demkina AE, Di Meglio M, Luszczak JM, Filipiak D, Sanz Sanchez J, Kolesnyk MY, Cersit S, Chokesuwattanaskul R, De Lepper AGW, Hubert A, Tavares Da Silva M, Svetlin Nedkov Tsonev ST, Ahmed A, Fujita M, Iida O, Masuda M, Okamoto S, Ishihara T, Nanto K, Uematsu M, Kinova E, Goudev A, Kinova E, Goudev A, Aljalloud A, Musetti G, Kang HJ, Jansen-Park SH, Goetzenich A, Autschbach R, Hatam N, Cicchitti V, Bucciarelli V, Di Girolamo E, Tonti G, De Caterina R, Gallina S, Vertes V, Meiszterics ZS, Szabados S, Simor T, Faludi R, Muraru D, Palermo C, Romeo G, Aruta P, Binotto G, Semenzato G, Carstea D, Iliceto S, Badano LP, Soesanto AM, Ruiz M, Mesa D, Delgado M, Gutierrez G, Aristizabal CH, Fernandez J, Ferreiro C, Duran E, Anguita M, Castillo JC, Pan M, Arizon JM, Suarez De Lezo J, Bidviene J, Brunello G, Veronesi F, Cavalli G, Sokalskis V, Aruta P, Badano LP, Muraru D, Yesin M, Bayam E, Gunduz S, Gursoy MO, Karakoyun S, Astarcioglu MA, Cersit S, Candan O, Ozkan M, Krylova NS, Poteshkina NG, Kovalevskaya EA, Hashieva FM, Venner C, Huttin O, Guillaumot A, Chaouat A, Chabot F, Juilliere Y, Selton-Suty C, Williams CA, Stuart AG, Pieles GE, Kasprzak JD, Lipiec P, Osa Saez A, Arnau Vives MA, Buendia Fuentes F, Ferre Valverdu M, Quesada Carmona A, Serrano Martinez F, Montero Argudo A, Martinez Dolz L, Rueda Soriano J, Nikitjuk OV, Dzyak GV, Gunduz S, Tabakci M, Gursoy O, Karakoyun S, Bayam E, Kalcik M, Yesin M, Ozkan M, Satitthummanid S, Boonyaratavej S, Herold IHF, Saporito S, Bouwman RA, Mischi M, Korsten HHM, Reesink KD, Houthuizen P, Galli E, Bouzille G, Samset E, Donal E, Pestana G, De Sousa C, Pinto R, Ribeiro V, Vasconcelos M, Almeida PB, Macedo F, Maciel MJ, Manov E, Runev N, Shabani R, Gartcheva M, Donova T, Petrov I, Al-Mallah M. HIT Poster session 1P161E/e'*SV is a better predictor of outcome than E/e' in patients with heart failure with preserved left ventricular ejection fractionP162Subclinical left atrial and left ventricular structural and functional abnormalities in postmenopausal women with abdominal obesityP163Central obesity and hypertension: double burden to the left atrium of postmenopausal womenP164Comparison between 3-D blood pressure pulse analyser and pulsed-wave doppler echocardiography derived hemodynamic parameters in cardiac surgery patients - a pilot studyP165Paced-induced heart electrical activation modifies the orientation of left ventricular flow momentum: novel insights from echocardiographic particle image velocimetryP166Correlations between echocardiographic and CMR-derived parameters of right ventricular size and function in patients with COPDP167Longitudinal strain analysis allows the identification of subclinical deterioration of right ventricular myocardial function in patients with cancer therapy-related left ventricular dysfunctionP168Effect of atrial fibrillation to pulmonary hypertension and right ventricular function in patient with severe mitral stenosisP169Evolution of etiologic spectrum and clinical features of mitral regurgitation since 2007 until 2015P170Tricuspid annulus area correlates more with right atrial than right ventricular volumes in patients with different mechanisms of functional tricuspid regurgitation: a 3D echocardiography studyP171The effect of hemolysis on serum lipid levels in patients suffering from severe paravalvular leakageP172Right ventricular dysfunction in patients with hypertrophic cardiomyopathyP173Interest of variations of echocardiographic parameters after initiation of specific therapy in the risk stratification of patients with pulmonary hypertensionP174Comparison of left and right atrial size and function in elite adolescent male football playersP175Do pocket-size imaging devices allow for reliable bedside vascular screening?P176Evolution of tricuspid regurgitation after pulmonary valve replacement for pulmonary regurgitation in repaired tetralogy of fallotP177Effect of perindopril/amlodipine combination on post-exercise E/e' in patients with arterial hypertensionP178Relationship between pulmonary venous flow and prosthetic mitral valve thrombosis P179Mitral valve parameters derived from 3-dimensional transesophageal echocardiography dataset: correlation between qlab and tomtec softwareP180Non-invasive pulmonary transit time: a new parameter for global cardiac performanceP181Assessment of the positive work and mechanical dispersion: new methods to quantify left ventricular function in aortic stenosisP182Atrial function in Takotsubo cardiomyopathy: deformation analysisP183Cardiac syndrome X- proven left ventricular perfusion and kinetic abnormalities by SPECT-CT and pharmacological dobutamine stress testP184Impact of frailty assessment on myocardial perfusion imaging results: a prospective cohort study. Eur Heart J Cardiovasc Imaging 2016. [DOI: 10.1093/ehjci/jew235] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Quotti Tubi L, Canovas Nunes S, Brancalion A, Doriguzzi Breatta E, Manni S, Mandato E, Zaffino F, Macaccaro P, Carrino M, Gianesin K, Trentin L, Binotto G, Zambello R, Semenzato G, Gurrieri C, Piazza F. Protein kinase CK2 regulates AKT, NF-κB and STAT3 activation, stem cell viability and proliferation in acute myeloid leukemia. Leukemia 2016; 31:292-300. [PMID: 27479180 DOI: 10.1038/leu.2016.209] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 06/15/2016] [Accepted: 06/21/2016] [Indexed: 12/28/2022]
Abstract
Protein kinase CK2 sustains acute myeloid leukemia cell growth, but its role in leukemia stem cells is largely unknown. Here, we discovered that the CK2 catalytic α and regulatory β subunits are consistently expressed in leukemia stem cells isolated from acute myeloid leukemia patients and cell lines. CK2 inactivation with the selective inhibitor CX-4945 or RNA interference induced an accumulation of leukemia stem cells in the late S-G2-M phases of the cell cycle and triggered late-onset apoptosis. As a result, leukemia stem cells displayed an increased sensitivity to the chemotherapeutic agent doxorubicin. From a molecular standpoint, CK2 blockade was associated with a downmodulation of the stem cell-regulating protein BMI-1 and a marked impairment of AKT, nuclear factor-κB (NF-κB) and signal transducer and activator of transcription 3 (STAT3) activation, whereas FOXO3a nuclear activity was induced. Notably, combined CK2 and either NF-κB or STAT3 inhibition resulted in a superior cytotoxic effect on leukemia stem cells. This study suggests that CK2 blockade could be a rational approach to minimize the persistence of residual leukemia cells.
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Affiliation(s)
- L Quotti Tubi
- Department of Medicine, Division of Hematology, University of Padova, Padova, Italy.,Laboratory of Normal and Malignant Hematopoiesis, Venetian Institute of Molecular Medicine, Padova, Italy
| | - S Canovas Nunes
- Department of Medicine, Division of Hematology, University of Padova, Padova, Italy.,Laboratory of Normal and Malignant Hematopoiesis, Venetian Institute of Molecular Medicine, Padova, Italy
| | - A Brancalion
- Department of Medicine, Division of Hematology, University of Padova, Padova, Italy.,Laboratory of Normal and Malignant Hematopoiesis, Venetian Institute of Molecular Medicine, Padova, Italy
| | - E Doriguzzi Breatta
- Department of Medicine, Division of Hematology, University of Padova, Padova, Italy.,Laboratory of Normal and Malignant Hematopoiesis, Venetian Institute of Molecular Medicine, Padova, Italy
| | - S Manni
- Department of Medicine, Division of Hematology, University of Padova, Padova, Italy.,Laboratory of Normal and Malignant Hematopoiesis, Venetian Institute of Molecular Medicine, Padova, Italy
| | - E Mandato
- Department of Medicine, Division of Hematology, University of Padova, Padova, Italy.,Laboratory of Normal and Malignant Hematopoiesis, Venetian Institute of Molecular Medicine, Padova, Italy
| | - F Zaffino
- Department of Medicine, Division of Hematology, University of Padova, Padova, Italy.,Laboratory of Normal and Malignant Hematopoiesis, Venetian Institute of Molecular Medicine, Padova, Italy
| | - P Macaccaro
- Department of Medicine, Division of Hematology, University of Padova, Padova, Italy.,Laboratory of Normal and Malignant Hematopoiesis, Venetian Institute of Molecular Medicine, Padova, Italy
| | - M Carrino
- Department of Medicine, Division of Hematology, University of Padova, Padova, Italy.,Laboratory of Normal and Malignant Hematopoiesis, Venetian Institute of Molecular Medicine, Padova, Italy
| | - K Gianesin
- Department of Medicine, Division of Hematology, University of Padova, Padova, Italy.,Laboratory of Normal and Malignant Hematopoiesis, Venetian Institute of Molecular Medicine, Padova, Italy
| | - L Trentin
- Department of Medicine, Division of Hematology, University of Padova, Padova, Italy.,Laboratory of Normal and Malignant Hematopoiesis, Venetian Institute of Molecular Medicine, Padova, Italy
| | - G Binotto
- Department of Medicine, Division of Hematology, University of Padova, Padova, Italy
| | - R Zambello
- Department of Medicine, Division of Hematology, University of Padova, Padova, Italy.,Laboratory of Normal and Malignant Hematopoiesis, Venetian Institute of Molecular Medicine, Padova, Italy
| | - G Semenzato
- Department of Medicine, Division of Hematology, University of Padova, Padova, Italy.,Laboratory of Normal and Malignant Hematopoiesis, Venetian Institute of Molecular Medicine, Padova, Italy
| | - C Gurrieri
- Department of Medicine, Division of Hematology, University of Padova, Padova, Italy.,Laboratory of Normal and Malignant Hematopoiesis, Venetian Institute of Molecular Medicine, Padova, Italy
| | - F Piazza
- Department of Medicine, Division of Hematology, University of Padova, Padova, Italy.,Laboratory of Normal and Malignant Hematopoiesis, Venetian Institute of Molecular Medicine, Padova, Italy
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Mandato E, Manni S, Zaffino F, Semenzato G, Piazza F. Targeting CK2-driven non-oncogene addiction in B-cell tumors. Oncogene 2016; 35:6045-6052. [PMID: 27041560 DOI: 10.1038/onc.2016.86] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Revised: 02/15/2016] [Accepted: 02/15/2016] [Indexed: 12/14/2022]
Abstract
Genetic mutations of oncogenes often underlie deranged cell growth and altered differentiation pathways leading to malignant transformation of B-lymphocytes. However, addiction to oncogenes is not the only drive to lymphoid tumor pathogenesis. Dependence on non-oncogenes, which act by propelling basic mechanisms of cell proliferation and survival, has also been recognized in the pathobiology of lymphoid leukemias, lymphomas and multiple myeloma. Among the growing number of molecules that may uphold non-oncogene addiction, a key place is increasingly being recognized to the serine-threonine kinase CK2. This enzyme is overexpressed and overactive in B-acute lymphoblastic leukemia, multiple myeloma, chronic lymphocytic leukemia and non-Hodgkin lymphomas, such as mantle cell, follicular, Burkitt's and diffuse large B-cell lymphomas. In these tumors, CK2 may serve the activity of oncogenes, similar to BCR-ABL and c-MYC, control the activation of critical signaling cascades, such as NF-κB (nuclear factor-κB), STAT3 (signal transducer and activator of transcription 3) and PTEN/PI3K/AKT (phosphatase and tensin homolog protein/phosphoinositide 3-kinase/AKR thymoma), and sustain multiple cellular stress-elicited pathways, such as the proteotoxic stress, unfolded protein and DNA-damage responses. CK2 has also been shown to have an essential role in tuning signals derived from the stromal tumor microenvironment. Not surprisingly, targeting CK2 in lymphoid tumor cell lines or mouse xenograft models can boost the cytotoxic effects of both conventional chemotherapeutics and novel agents, similar to heat-shock protein 90, proteasome and tyrosine kinases inhibitors. In this review, we summarize the evidence indicating how CK2 embodies most of the features of a cancer growth-promoting non-oncogene, focusing on lymphoid tumors. We further discuss the preclinical data of the use of small ATP-competitive CK2 inhibitors, which hold the promise to be additional options in novel drug combinations for the therapy of lymphoid and plasmacellular malignancies.
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Affiliation(s)
- E Mandato
- Department of Medicine, Hematology Branch, University of Padova, Padova, Italy.,Venetian Institute of Molecular Medicine, Padova, Italy
| | - S Manni
- Department of Medicine, Hematology Branch, University of Padova, Padova, Italy.,Venetian Institute of Molecular Medicine, Padova, Italy
| | - F Zaffino
- Department of Medicine, Hematology Branch, University of Padova, Padova, Italy.,Venetian Institute of Molecular Medicine, Padova, Italy
| | - G Semenzato
- Department of Medicine, Hematology Branch, University of Padova, Padova, Italy.,Venetian Institute of Molecular Medicine, Padova, Italy
| | - F Piazza
- Department of Medicine, Hematology Branch, University of Padova, Padova, Italy.,Venetian Institute of Molecular Medicine, Padova, Italy
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Facco M, Cabrelle A, Calabrese F, Teramo A, Cinetto F, Carraro S, Martini V, Calzetti F, Tamassia N, Cassatella MA, Semenzato G, Agostini C. TL1A/DR3 axis involvement in the inflammatory cytokine network during pulmonary sarcoidosis. Clin Mol Allergy 2015; 13:16. [PMID: 26240517 PMCID: PMC4522997 DOI: 10.1186/s12948-015-0022-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 06/02/2015] [Indexed: 12/26/2022] Open
Abstract
Background TNF-like ligand 1A (TL1A), a recently recognized member of the TNF superfamily, and its death domain receptor 3 (DR3), firstly identified for their relevant role in T lymphocyte homeostasis, are now well-known mediators of several immune-inflammatory diseases, ranging from rheumatoid arthritis to inflammatory bowel diseases to psoriasis, whereas no data are available on their involvement in sarcoidosis, a multisystemic granulomatous disease where a deregulated T helper (Th)1/Th17 response takes place. Methods In this study, by flow cytometry, real-time PCR, confocal microscopy and immunohistochemistry analyses, TL1A and DR3 were investigated in the pulmonary cells and the peripheral blood of 43 patients affected by sarcoidosis in different phases of the disease (29 patients with active sarcoidosis, 14 with the inactive form) and in 8 control subjects. Results Our results demonstrated a significant higher expression, both at protein and mRNA levels, of TL1A and DR3 in pulmonary T cells and alveolar macrophages of patients with active sarcoidosis as compared to patients with the inactive form of the disease and to controls. In patients with sarcoidosis TL1A was strongly more expressed in the lung than the blood, i.e., at the site of the involved organ. Additionally, zymography assays showed that TL1A is able to increase the production of matrix metalloproteinase 9 by sarcoid alveolar macrophages characterized, in patients with the active form of the disease, by reduced mRNA levels of the tissue inhibitor of metalloproteinase (TIMP)-1. Conclusions These data suggest that TL1A/DR3 interactions are part of the extended and complex immune-inflammatory network that characterizes sarcoidosis during its active phase and may contribute to the pathogenesis and to the progression of the disease.
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Affiliation(s)
- M Facco
- Department of Medicine, Hematology and Clinical Immunology Branch, Padua University School of Medicine, Padua, Italy ; Venetian Institute of Molecular Medicine, Padua, Italy
| | - A Cabrelle
- Venetian Institute of Molecular Medicine, Padua, Italy
| | - F Calabrese
- Department of Cardiac, Thoracic and Vascular Sciences, Padua University School of Medicine, Padua, Italy
| | - A Teramo
- Department of Medicine, Hematology and Clinical Immunology Branch, Padua University School of Medicine, Padua, Italy ; Venetian Institute of Molecular Medicine, Padua, Italy
| | - F Cinetto
- Department of Medicine, Hematology and Clinical Immunology Branch, Padua University School of Medicine, Padua, Italy
| | - S Carraro
- Department of Medicine, Hematology and Clinical Immunology Branch, Padua University School of Medicine, Padua, Italy
| | - V Martini
- Department of Medicine, Hematology and Clinical Immunology Branch, Padua University School of Medicine, Padua, Italy ; Venetian Institute of Molecular Medicine, Padua, Italy
| | - F Calzetti
- Department of Pathology and Diagnostics, Section of General Pathology, School of Medicine, University of Verona, Verona, Italy
| | - N Tamassia
- Department of Pathology and Diagnostics, Section of General Pathology, School of Medicine, University of Verona, Verona, Italy
| | - M A Cassatella
- Department of Pathology and Diagnostics, Section of General Pathology, School of Medicine, University of Verona, Verona, Italy
| | - G Semenzato
- Department of Medicine, Hematology and Clinical Immunology Branch, Padua University School of Medicine, Padua, Italy ; Venetian Institute of Molecular Medicine, Padua, Italy
| | - C Agostini
- Department of Medicine, Hematology and Clinical Immunology Branch, Padua University School of Medicine, Padua, Italy ; Venetian Institute of Molecular Medicine, Padua, Italy
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Binotto G, Quinto A, De March E, Lessi F, Castelli M, Nabergoj M, Gianesello I, Pavanello F, Branca A, Zambello R, Adami F, Semenzato G. 93 INFECTIONS IN PATIENTS WITH MYELODYSPLASTIC SYNDROME/ACUTE MYELOID LEUKEMIA TREATED WITH AZACITIDINE: RETROSPECTIVE ANALYSIS FROM A SINGLE CENTER. Leuk Res 2015. [DOI: 10.1016/s0145-2126(15)30094-1] [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: 11/26/2022]
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24
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Poullot E, Zambello R, Leblanc F, Bareau B, De March E, Roussel M, Boulland ML, Houot R, Renault A, Fest T, Semenzato G, Loughran T, Lamy T. Chronic natural killer lymphoproliferative disorders: characteristics of an international cohort of 70 patients. Ann Oncol 2014; 25:2030-2035. [PMID: 25096606 DOI: 10.1093/annonc/mdu369] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The 2008 World Health Organization (WHO) classification distinguishes three entities among the large granular lymphocytic leukemia (LGL leukemia): T-cell LGL leukemia (T-LGL leukemia), aggressive natural killer (NK) cell leukemia, and chronic NK lymphoproliferative disorders (LPD), the later considered as a provisional entity. Only a few and small cohorts of chronic NK LPD have been published. PATIENTS AND METHODS We report here clinicobiological features collected retrospectively from 70 cases of chronic NK LPD, and compared with those of T-LGL leukemia. RESULTS There were no statistical differences between chronic NK LPD and T-LGL leukemia concerning median age [61 years (range 23-82 years)], organomegaly (26%), associated autoimmune diseases (24%), and associated hematological malignancies (11%). Patients with chronic NK LPD were significantly less symptomatic (49% versus 18%, P < 0.001) and the association with rheumatoid arthritis was more rarely observed (7% versus 17%, P = 0.03). The neutropenia (<0.5 × 10(9)/l) was less severe in chronic NK LPD (33% versus 61%, P < 0.001) without difference in the rate of recurrent infections. STAT3 mutation was detected in 12% of the cohort, which is lower than the frequency observed in T-LGL leukemia. Thirty-seven percent of the patients required specific therapy. Good results were obtained with cyclophosphamide. Overall and complete response rates were, respectively, 69% and 56%. Overall survival was 94% at 5 years. CONCLUSION This study suggests very high similarities between chronic NK LPD and T-LGL leukemias. Since chronic NK LPD is still a provisional entity, our findings should be helpful when considering further revisions of the WHO classification.
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Affiliation(s)
- E Poullot
- Department of Clinical Hematology, Rennes University Hospital, Rennes, France; Department of Pathology, Rennes University Hospital, Rennes, France
| | - R Zambello
- Department of Medicine, Hematology and Clinical Immunology Branch, Padua University School of Medicine, Padua, Italy
| | - F Leblanc
- University of Virginia Cancer Center, University of Virginia School of Medicine, Charlottesville, USA
| | - B Bareau
- Department of Clinical Hematology, Clinique Cesson-Sévigné, Cesson-Sévigné
| | - E De March
- Department of Medicine, Hematology and Clinical Immunology Branch, Padua University School of Medicine, Padua, Italy
| | - M Roussel
- Department of Hematology-Immunology and Cell Therapy, Rennes University Hospital, Rennes; INSERM UMR 917 Faculté de médecine Université Rennes 1, Rennes
| | - M L Boulland
- Department of Hematology-Immunology and Cell Therapy, Rennes University Hospital, Rennes
| | - R Houot
- Department of Clinical Hematology, Rennes University Hospital, Rennes, France; INSERM UMR 917 Faculté de médecine Université Rennes 1, Rennes
| | - A Renault
- Department of Clinical Investigation, Rennes University Hospital, Rennes, France
| | - T Fest
- Department of Clinical Hematology, Clinique Cesson-Sévigné, Cesson-Sévigné; INSERM UMR 917 Faculté de médecine Université Rennes 1, Rennes
| | - G Semenzato
- Department of Medicine, Hematology and Clinical Immunology Branch, Padua University School of Medicine, Padua, Italy
| | - T Loughran
- University of Virginia Cancer Center, University of Virginia School of Medicine, Charlottesville, USA
| | - T Lamy
- Department of Clinical Hematology, Rennes University Hospital, Rennes, France; INSERM UMR 917 Faculté de médecine Université Rennes 1, Rennes; Department of Clinical Investigation, Rennes University Hospital, Rennes, France.
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25
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Facco M, Semenzato G, Agostini C. Authors' response. Thorax 2011. [DOI: 10.1136/thoraxjnl-2011-200387] [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: 11/04/2022]
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26
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D'Arena G, Valentini CG, Pietrantuono G, Guariglia R, Martorelli MC, Mansueto G, Villani O, Onofrillo D, Falcone A, Specchia G, Semenzato G, Di Renzo N, Mastrullo L, Venditti A, Ferrara F, Palumbo A, Pagano L, Musto P. Frontline chemotherapy with bortezomib-containing combinations improves response rate and survival in primary plasma cell leukemia: a retrospective study from GIMEMA Multiple Myeloma Working Party. Ann Oncol 2011; 23:1499-502. [PMID: 22039089 DOI: 10.1093/annonc/mdr480] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The best therapeutic approach for primary plasma cell leukemia (PPCL) remains unknown so far. In very limited studies, the poor clinical outcome of this aggressive variant of multiple myeloma seemed to be ameliorated by the use of the proteasome inhibitor bortezomib. Aiming to provide more consolidated data, this multicenter retrospective survey focused on unselected and previously untreated PPCL patients who had received bortezomib as frontline therapy. PATIENTS AND METHODS Twenty-nine patients with PPCL were collected. Bortezomib was given at standard doses and schedules, in various combinations with dexamethasone, thalidomide, doxorubicin, melphalan, prednisone, vincristine, and cyclophosphamide. RESULTS An overall response rate of 79% was observed, with 38% of at least very good partial remission. Grade 3-4 hematological, neurological, infectious, and renal toxic effects occurred in 20%, 21%, 16%, and 4% of patients, respectively. After a median follow-up of 24 months, 16 patients were alive (55%), 12 of whom were in remission phase and 4 relapsed. The best long-term results were achieved in patients who received stem-cell transplantation after bortezomib induction. CONCLUSION Bortezomib, used as initial therapy, is able to increase the percentage and the quality of responses in PPCL patients, producing a significant improvement of survival.
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Affiliation(s)
- G D'Arena
- Onco-Hematology Department, Istituto di Ricovero e Cura a carattere Scientifico, Centro di Riferimento Oncologico della Basilicata, Rionero in Vulture
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Abstract
The recently updated World Health Organization (WHO) classification of tumors of hematopoietic and lymphoid tissues, published in 2008, has made great advances in revising the disorders previously included in the pool of natural killer (NK) cell tumors. Although NK cell neoplasms represent a relatively rare group of diseases, accounting for <5% of all lymphoid neoplasms, they include very distinctive conditions both clinically and pathologically. This family of diseases includes the most indolent clinical forms, such as the provisional new entry of chronic lymphoproliferative disorder of NK cells (CLPD-NK) in the WHO classification, as well as one of the most fatal diseases recognized in medical oncology, aggressive NK cell leukemia (ANKL), which is characterized by a prognosis of weeks, or even days. In addition, some disorders previously identified as blastic NK cell lymphoma within the NK cell system have been more properly defined and included in the blastic plasmacytoid dentritic cell neoplasms, although rare cases of bona fide immature NK lymphoid tumors (now classified as NK cell lymphoblastic leukemia/lymphoma) have been reported in the literature. This paper focuses on recent concepts and progress in morphology, pathogenesis, clinicopathological features, treatment approaches, and outcomes of NK cell malignancies.
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Affiliation(s)
- G Semenzato
- Department of Clinical and Experimental Medicine, Hematology and Clinical Immunology Branch, Padua University School of Medicine, Padova, Italy.
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28
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Binotto G, Cillo U, Trentin L, Piazza F, Zaninotto M, Semenzato G, Adami F. Double autologous bone marrow transplantation and orthotopic liver transplantation in a patient with primary light chain (AL) amyloidosis. Amyloid 2011; 18 Suppl 1:132-4. [PMID: 21838461 DOI: 10.3109/13506129.2011.574354049] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- G Binotto
- Department of Clinical & Experimental Medicine, Hematology & Clinical Immunology Section, Padova University School of Medicine, Padova, Italy
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29
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Binotto G, Castelli M, Quinto A, Raimondi R, Zambello R, Semenzato G. 82 Favourable outcome of young patient with t-MDS secondary to breast cancer treatment using azacitidine as induction therapy before allo-BMT. Leuk Res 2011. [DOI: 10.1016/s0145-2126(11)70084-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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30
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Cabrelle A, Maschio N, Carraro S, Frezzato F, Binotto G, Gattazzo C, Miorin M, Agostini C, Zambello R, Pandolfi F, Semenzato G, Trentin L. Apoptotic effect of cyclosporin a and dexamethasone in malignant cells of patients with B-chronic lymphocytic leukemia. J BIOL REG HOMEOS AG 2009; 23:239-250. [PMID: 20003763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
B-chronic lymphocytic leukemia (B-CLL) is a malignant disorder characterized by the accumulation of the leukemic cells in the G0-G1 phase of the cell cycle and expressing high levels of the anti-apoptotic protein Bcl-2. Since we observed that the treatment of autoimmune complications with Cyclosporine A (CsA) determined in some CLL patients an improvement not only of the autoimmune phenomena, but also of the leukemic process, we evaluated the in vitro cytotoxicity of CsA as compared to Dexamethasone (Dex) on leukemic cells. Leukemic cells obtained from 32 B-CLL patients showed a heterogeneous pattern of spontaneous apoptosis at 24 h interval and this pattern permitted to identify: Group 1 (14/32) with high (>20%) apoptotic rate and Group 2 (18/32) with low cell death. CsA and Dex increased cell death in both groups with a different timing by an apoptotic mechanism that does not involve Bcl-2. Furthermore, in Group 2, CsA-induced apoptosis was significant higher than that observed with Dex both at 4 and 24 h. We suggest that, in B-CLL, CsA has a significant pro-apoptotic activity manifested also in patients with low spontaneous apoptosis. Our observations might be taken into account to consider new therapeutic strategies in B-CLL.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Anti-Inflammatory Agents/pharmacology
- Apoptosis/drug effects
- Cyclosporine/pharmacology
- Dexamethasone/pharmacology
- Female
- G1 Phase/drug effects
- Gene Expression Regulation, Leukemic/drug effects
- Humans
- Immunosuppressive Agents/pharmacology
- Leukemia, Lymphocytic, Chronic, B-Cell/drug therapy
- Leukemia, Lymphocytic, Chronic, B-Cell/metabolism
- Male
- Middle Aged
- Proto-Oncogene Proteins c-bcl-2/biosynthesis
- Resting Phase, Cell Cycle/drug effects
- Time Factors
- Tumor Cells, Cultured
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Affiliation(s)
- A Cabrelle
- Department of Clinical and Experimental Medicine, Hematology and Clinical Immunology Branch, University of Padua, Padua, Italy
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31
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Fadini GP, Tognon S, Rodriguez L, Boscaro E, Baesso I, Avogaro A, Semenzato G, Agostini C, Marcolongo R. Low levels of endothelial progenitor cells correlate with disease duration and activity in patients with Behçet's disease. Clin Exp Rheumatol 2009; 27:814-821. [PMID: 19917165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVES We tested whether Behçet's disease (BD) is characterized by alterations of circulating endothelial progenitor cells (EPCs),which are involved in vascular homeostasis and repair. METHODS We enrolled 30 BD patients and 27 matched healthy controls. EPCs were defined and measured by flow cytometry according to the expression of CD34, CD133 and KDR. RESULTS We show that BD patients had significantly lower levels of CD34+KDR+ and CD34+CD133+KDR+ EPCs than controls. We found significant negative correlations between EPC phenotypes and BD duration, while there were positive correlations between CD34+KDR+ EPCs and both BD activity scores and C-reactive protein. The lower EPC levels with increasing disease duration was shown in univariate analysis and in multivariable analysis adjusted for possible confounders. CONCLUSION This is the first report that BD is associated with progressive EPC decline. Reduction of EPCs may represent a mechanism of induction and/or progression of vascular injury in these patients.
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Affiliation(s)
- G P Fadini
- Department of Clinical and Experimental Medicine, University of Padova, Italy
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32
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Oliva E, Aloe Spiriti M, Poloni A, Liso V, Cilloni D, Terenzi A, Guglielmo P, Levis A, Cortelezzi A, Ghio R, Musto P, Semenzato G, Clissa C, Santini V. P077 Adaptation and changes in quality of life in patients with myelodysplastic syndrome. Leuk Res 2009. [DOI: 10.1016/s0145-2126(09)70157-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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33
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Bonanni L, Adami F, Angelini A, Gurrieri C, Cutolo A, Ponchia A, Corbetti F, Thiene G, Semenzato G. Right Atrial Mass in a Patient With T-Cell Chronic Lymphocytic Leukemia. Circulation 2007; 116:e569-72. [DOI: 10.1161/circulationaha.107.713008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- L. Bonanni
- From the Department of Clinical and Experimental Medicine, Hematology and Clinical Immunology Section, University of Padua (L.B., F.A., C.G., G.S.); Department of Medical Diagnostic and Therapy, Cardiovascular Pathology, University of Padua Medical School (A.A., G.T.); Radiology Department, Padua Hospital (F.C.); and Department of Cardiac, Thoracic, and Vascular Sciences, Division of Cardiology, University of Padua (A.C., A.P.), Padua, Italy
| | - F. Adami
- From the Department of Clinical and Experimental Medicine, Hematology and Clinical Immunology Section, University of Padua (L.B., F.A., C.G., G.S.); Department of Medical Diagnostic and Therapy, Cardiovascular Pathology, University of Padua Medical School (A.A., G.T.); Radiology Department, Padua Hospital (F.C.); and Department of Cardiac, Thoracic, and Vascular Sciences, Division of Cardiology, University of Padua (A.C., A.P.), Padua, Italy
| | - A. Angelini
- From the Department of Clinical and Experimental Medicine, Hematology and Clinical Immunology Section, University of Padua (L.B., F.A., C.G., G.S.); Department of Medical Diagnostic and Therapy, Cardiovascular Pathology, University of Padua Medical School (A.A., G.T.); Radiology Department, Padua Hospital (F.C.); and Department of Cardiac, Thoracic, and Vascular Sciences, Division of Cardiology, University of Padua (A.C., A.P.), Padua, Italy
| | - C. Gurrieri
- From the Department of Clinical and Experimental Medicine, Hematology and Clinical Immunology Section, University of Padua (L.B., F.A., C.G., G.S.); Department of Medical Diagnostic and Therapy, Cardiovascular Pathology, University of Padua Medical School (A.A., G.T.); Radiology Department, Padua Hospital (F.C.); and Department of Cardiac, Thoracic, and Vascular Sciences, Division of Cardiology, University of Padua (A.C., A.P.), Padua, Italy
| | - A. Cutolo
- From the Department of Clinical and Experimental Medicine, Hematology and Clinical Immunology Section, University of Padua (L.B., F.A., C.G., G.S.); Department of Medical Diagnostic and Therapy, Cardiovascular Pathology, University of Padua Medical School (A.A., G.T.); Radiology Department, Padua Hospital (F.C.); and Department of Cardiac, Thoracic, and Vascular Sciences, Division of Cardiology, University of Padua (A.C., A.P.), Padua, Italy
| | - A. Ponchia
- From the Department of Clinical and Experimental Medicine, Hematology and Clinical Immunology Section, University of Padua (L.B., F.A., C.G., G.S.); Department of Medical Diagnostic and Therapy, Cardiovascular Pathology, University of Padua Medical School (A.A., G.T.); Radiology Department, Padua Hospital (F.C.); and Department of Cardiac, Thoracic, and Vascular Sciences, Division of Cardiology, University of Padua (A.C., A.P.), Padua, Italy
| | - F. Corbetti
- From the Department of Clinical and Experimental Medicine, Hematology and Clinical Immunology Section, University of Padua (L.B., F.A., C.G., G.S.); Department of Medical Diagnostic and Therapy, Cardiovascular Pathology, University of Padua Medical School (A.A., G.T.); Radiology Department, Padua Hospital (F.C.); and Department of Cardiac, Thoracic, and Vascular Sciences, Division of Cardiology, University of Padua (A.C., A.P.), Padua, Italy
| | - G. Thiene
- From the Department of Clinical and Experimental Medicine, Hematology and Clinical Immunology Section, University of Padua (L.B., F.A., C.G., G.S.); Department of Medical Diagnostic and Therapy, Cardiovascular Pathology, University of Padua Medical School (A.A., G.T.); Radiology Department, Padua Hospital (F.C.); and Department of Cardiac, Thoracic, and Vascular Sciences, Division of Cardiology, University of Padua (A.C., A.P.), Padua, Italy
| | - G. Semenzato
- From the Department of Clinical and Experimental Medicine, Hematology and Clinical Immunology Section, University of Padua (L.B., F.A., C.G., G.S.); Department of Medical Diagnostic and Therapy, Cardiovascular Pathology, University of Padua Medical School (A.A., G.T.); Radiology Department, Padua Hospital (F.C.); and Department of Cardiac, Thoracic, and Vascular Sciences, Division of Cardiology, University of Padua (A.C., A.P.), Padua, Italy
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34
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Bourgault-Rouxel AS, Loughran TP, Zambello R, Epling-Burnette PK, Semenzato G, Donadieu J, Amiot L, Fest T, Lamy T. Clinical spectrum of gammadelta+ T cell LGL leukemia: analysis of 20 cases. Leuk Res 2007; 32:45-8. [PMID: 17544120 DOI: 10.1016/j.leukres.2007.04.011] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2007] [Revised: 04/20/2007] [Accepted: 04/20/2007] [Indexed: 01/06/2023]
Abstract
We report on the clinico-biological characteristics of 20 cases of gammadelta T cell large granular lymphocyte (LGL) leukemia. All the data were compared to that of 196 cases with alphabeta T cell subtype, which represents the majority of T cell LGL leukemias. Clinical findings were quite similar in the two groups regarding age, sex ratio, recurrent infections, and association with auto-immune diseases especially rheumatoid arthritis. Gammadelta LGL predominantly expressed a CD3+/CD4-/CD8+/CD16+/CD57+ phenotype, in 50% of cases. Clinical outcome was favorable for these patients with overall survival of 85% at 3 years. Fifty percent of gammadelta patients required treatment and the response to therapy was estimated at 55%. gammadelta and alphabeta T cell LGL leukemia harbor a very similar clinico-biological behavior and represent part of an antigen-driven T cell lymphoproliferation.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Autoimmune Diseases/complications
- Clone Cells
- Female
- Gene Rearrangement, gamma-Chain T-Cell Antigen Receptor
- Humans
- Immunophenotyping
- Leukemia, T-Cell/diagnosis
- Leukemia, T-Cell/immunology
- Leukopenia/diagnosis
- Male
- Middle Aged
- Receptors, Antigen, T-Cell, alpha-beta
- Receptors, Antigen, T-Cell, gamma-delta
- Splenomegaly/diagnosis
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35
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Scquizzato E, Teramo A, Miorin M, Facco M, Piazza F, Noventa F, Trentin L, Agostini C, Zambello R, Semenzato G. Genotypic evaluation of killer immunoglobulin-like receptors in NK-type lymphoproliferative disease of granular lymphocytes. Leukemia 2007; 21:1060-9. [PMID: 17361229 DOI: 10.1038/sj.leu.2404634] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Using polymerase chain reaction (PCR)-based sequence-specific primers, the killer immunoglobulin-like receptor (KIR) genotypes of 35 patients with natural killer (NK)-type lymphoproliferative disease of granular lymphocytes and of 50 normal subjects were investigated to evaluate whether genes coding for activating KIRs were more frequently detected in patients with NK-lymphoproliferative disease of granular lymphocytes (LDGL). Genotype frequency indicated that the most frequently found gene content was eight genes in controls and 14 in patients (P<0.05). The KIR genotype analysis revealed that patient and, surprisingly, control KIR genotypes preferentially consisted of type B haplotypes characterized by the presence of multiple-activating KIRs. Evidence was also provided that the same KIR genotype was shared by a variable number of patients. Interestingly, the recurrent genotypes observed in the patient group were not found in controls. Concerning inhibitory genes, KIR2DL5a and 2DL5b were more frequently detected in patients than in controls (P<0.01), likely representing a discrete feature of the genetic repertoire of the patients. KIR gene repertoire analysis in patients suggests that the susceptibility to NK-LDGL might be related to the presence of activating KIR genes and supports the concept that these receptors may be involved in the priming of granular lymphocytes (GL) proliferation. Population analysis might disclose a genetic background predisposing to this disease.
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Affiliation(s)
- E Scquizzato
- Padua University School of Medicine, Department of Clinical and Experimental Medicine, Hematology and Clinical Immunology Branch, Padova, Italy
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36
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Terrin L, Trentin L, Degan M, Corradini I, Bertorelle R, Carli P, Maschio N, Bo MD, Noventa F, Gattei V, Semenzato G, De Rossi A. Telomerase expression in B-cell chronic lymphocytic leukemia predicts survival and delineates subgroups of patients with the same igVH mutation status and different outcome. Leukemia 2007; 21:965-72. [PMID: 17344921 DOI: 10.1038/sj.leu.2404607] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Activation of telomerase reverse transcriptase (hTERT) is essential for unlimited cell growth and plays a critical role in tumorigenesis. We investigated hTERT gene expression in 134 B-cell chronic lymphocytic leukemia (B-CLL) cases and evaluated its prognostic value with other prognostic markers (IgVH mutation status, CD38 and ZAP-70 expression). Real-time PCR assays to quantify either all hTERT transcripts (AT) or only the full length (FL) transcript encoding the functional protein were developed. hTERT-AT levels strongly correlated with hTERT-FT levels (r=0.743, P<0.0001); both inversely correlated with the percentage of IgVH mutation (P<0.005) and were significantly higher in unmutated than in mutated cases (P=0.004 and P=0.001, respectively). The hTERT values which best discriminated between the unmutated and mutated IgVH cases were 150 and 40 copies for hTERT-AT and hTERT-FL, respectively. Using these cut-off values, there was a significant difference in the survival of patients with high or low hTERT levels (P<0.0001). Unmutated cases with low hTERT levels had an overall survival close to mutated cases with high hTERT levels. Thus, this work identifies hTERT-RNA level as a new prognostic marker in B-CLL, and may be used to identify previously unrecognized patient groups with the same IgVH mutation status and different disease outcomes.
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Affiliation(s)
- L Terrin
- Section of Oncology, Department of Oncology and Surgical Sciences, University of Padua, Padua, Italy
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37
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Briani C, Doria A, Marcolongo R, Tognon S, Ruggero S, Toffanin E, Ermani M, Ghirardello A, Zampieri S, Semenzato G. Increased titres of IgM anti-heparan sulfate antibody in Behçet's disease. Clin Exp Rheumatol 2006; 24:S104-7. [PMID: 17067438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
OBJECTIVE Endothelial dysfunction is crucial in Behçet's disease (BD) pathogenesis, and measures of endothelial damage are potential markers of BD activity. Heparan sulfate (HS) is the most abundant proteoglycan in the endothelial cells, and anti-HS antibodies have been reported in subjects with vascular damage, due to vasculitis/vasculopathy. The aim of our study was to measure serum anti-HS antibodies in patients with BD and to determine whether their presence correlates with disease activity or clinical manifestations. METHODS Thirty-two patients with BD (21 men, 11 women) (median age 36.81+/-12.0 years) were considered. Of these, 13 had clinically active disease at the time of study. The mean disease duration was 7.31+/- 8.2 years (median 6 years). Anti-HS antibodies were measured by ELISA. As controls, sera from 40 sex- and age-matched healthy subjects, and 78 age-matched patients with systemic lupus erythematosus (SLE) were studied. RESULTS Anti-HS IgM antibody titres were significantly higher in BD patients compared to healthy subjects (p=0.016) and SLE controls (p=0.0008). No differences in anti-HS IgG antibody titres were observed among the 3 groups. Using categorical data, increased titres of IgM anti-HS antibodies were significantly more frequent in patients with BD vs patients with SLE (p=0.02). The presence of the antibodies, of either isotype, did not correlate with disease duration, disease activity or clinical manifestations. CONCLUSIONS BD patients have increased IgM anti-HS antibody titres compared to healthy and SLE controls. These antibodies did not correlate with disease activity or discrete clinical features, but might be relevant for pathogenic mechanisms of the disease.
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Affiliation(s)
- C Briani
- Department of Neurosciences, University of Padova, Padova, Italy.
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38
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Minuzzo S, Indraccolo S, Tosello V, Piovan E, Cabrelle A, Trentin L, Semenzato G, Amadori A. CD40 activation of B-CLL cells is associated with augmented intracellular levels of CD79b and increased BCR expression in a subset of patients. Leukemia 2005; 19:1099-101. [PMID: 15830006 DOI: 10.1038/sj.leu.2403772] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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39
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Zambello R, Cabrelle A, Trentin L, Agostini C, Semenzato G, Viola A. The raft marker GM1 identifies functional subsets of granular lymphocytes in patients with CD3+ lymphoproliferative disease of granular lymphocytes. Leukemia 2004; 18:771-6. [PMID: 15044927 DOI: 10.1038/sj.leu.2403292] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The raft marker GM1 is expressed at very low levels at the plasma membrane of resting T cells (GM1dull). In vitro T-cell activation induces synthesis of this lipid, which is then expressed at very high levels (GM1bright) at the membrane of activated/effector cells. By flow cytometry and confocal microscopy, we analyzed the expression and organization of GM1 in a series of 15 patients with CD3+ lymphoproliferative disease of granular lymphocytes (LDGL). We found that GM1bright GL were detectable in fresh blood samples obtained in all LDGL patients, although the range of brightly stained cells was extremely variable. This distinctive in vivo pattern has never been shown in T lymphocytes from healthy individuals or in patients with different chronic T or B lymphoproliferative disorders or active infectious diseases. The low number of cycling cells detected in LDGL patients was always included within the GM1bright GL population. Interestingly, GM1bright GL were demonstrated to contain a higher amount of IFN-gamma as compared to GM1dull GL. These findings allow to distinguish subsets of GL at different levels of activation within the monoclonal CD3+ population. The GM1bright GL subset is likely to be responsible for the renewing of GL and thus for maintaining chronic proliferation.
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Affiliation(s)
- R Zambello
- Padua University School of Medicine, Department of Clinical and Experimental Medicine, Clinical Immunology Branch, University of Padua, Italy
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40
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Abstract
Ifosfamide (IF) and cyclophosphamide (CTX) are chemotherapeutic agents frequently used in the treatment of human malignancies. These drugs can exhibit a bimodal mechanism of antitumor action with cytotoxic and immunomodulatory effects when associated with adoptive immunotherapy. In human peripheral blood lymphocytes, IF irreversibly inhibits the proliferative response to interleukin-2 in a dose-dependent manner and may also induce the phosphorylation of HSP27 by depleting glutathione. CTX promotes discrete cytokine profiles upregulating the expansion of Th1 cells, and this may be important to increase cellular immune response. The data presented in this report indicate that treatment regimens of CTX and IF may be used according to the tumor immunogenicity.
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Affiliation(s)
- G Binotto
- Padua University School of Medicine, Department of Clinical and Experimental Medicine, Clinical Immunology Branch, Padua, Italy
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41
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Semenzato G, Agostini C. Interstitial lung diseases: what next? Sarcoidosis Vasc Diffuse Lung Dis 2001; 18:239-41. [PMID: 11587094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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42
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Verleden GM, du Bois RM, Bouros D, Drent M, Millar A, Müller-Quernheim J, Semenzato G, Johnson S, Sourvino G, Olivier D, Pietinalho A, Xaubet A. Genetic predisposition and pathogenetic mechanisms of interstitial lung diseases of unknown origin. Eur Respir J Suppl 2001; 32:17s-29s. [PMID: 11816821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Understanding of the cellular and cytokine interactions associated with inflammation and fibrosis in interstitial lung diseases (ILDs) has increased substantially during the past few years. Presently, many agents are known to have the ability to induce ILDs, although only a small percentage of exposed individuals will develop the disease. In addition, the majority of ILDs are of unknown origin and many are labelled "idiopathic". Therefore, host susceptibility, genetic factors and, possibly, environmental cofactors may be important for the clinical expression of ILDs. The present review reports evidence of the genetic predisposition to develop ILDs of unknown origin, more specifically sarcoidosis, idiopathic pulmonary fibrosis (IPF), lymphangioleio-myomatosis and ILDs, in systemic sclerosis. For instance, for sarcoidosis and IPF several histocompatibility antigens have been associated with the development and/or the clinical presentation of the disease. Furthermore, there are also several types of ILD that are associated with inherited disorders, of which the tuberous sclerosis complex is only one example. This clearly indicates that pulmonary fibrosis can be influenced by genetic factors. Familial occurrence of sarcoidosis and IPF is also well known, although the exact modes of inheritance are debatable. Several studies have shown that extrinsic factors, such as single or multiple fibrosing agents, probably contribute to the development of clinical ILDs of unknown origin. It is probable that some of these studies deal with patients who do not have classical IPF, as recently defined by the American Thoracic Society (ATS)/European Respiratory Society (ERS) consensus. Therefore, the true role of these extrinsic factors in the development of IPF, or even sarcoidosis, remains speculative. With the help of animal studies and, more specifically, by using knock-out mice, it may be possible in the near future to unravel at least some of the genes that are responsible for the increased susceptibility of the development of interstitial lung diseases.
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Affiliation(s)
- G M Verleden
- Dept Respiratory Disease, University Hospital Gasthuisberg, Leuven, Belgium
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43
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Agostini C, Albera C, Bariffi F, De Palma M, Harari S, Lusuardi M, Pesci A, Poletti V, Richeldi L, Rizzato G, Rossi A, Schiavina M, Semenzato G, Tinelli C. First report of the Italian register for diffuse infiltrative lung disorders (RIPID). Monaldi Arch Chest Dis 2001; 56:364-8. [PMID: 11770220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Abstract
RIPID was established in 1998 as a joint project of the major Italian scientific societies for Respiratory Medicine, with the aim to create an Italian Register on diffuse infiltrative lung disorders that can provide the basis for epidemiological and clinical studies of adequate sample size. In the period from May 1998 to December 2000, 1,382 cases were submitted from 54 Centers in 15 regions of Italy, 54.2% males (mean age +/- SD 50.5 +/- 16.8 years) and 45.8% females (50.2 +/- 15.3 years). A current smoking habit emerges in 18% of subjects; former smokers and never-smokers represent 26% and 56% of the total case series, respectively. The most frequent disease registered is idiopathic pulmonary fibrosis (37.6%), followed in decreasing order by sarcoidosis (29.2%), and Langherans' cell hystiocytosis (6.6%). High resolution computed tomography (HRCT) was considered as the most important tool for final diagnosis in the majority of cases (74.4%); 39.4% of patients underwent transbronchial biopsies, 39.2% bronchoalveolar lavage (BAL). A surgical biopsy was performed in 20.5% of patients. A web site has been activated from December 2000 (www.pneumonet.it/ripid), allowing prompt access to all information and scientific material concerning the project and to an electronic form for data collection that can be completed on-line.
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Abstract
Sarcoidosis is an immunomediated, multisystem disorder of unknown cause(s) characterized by a heightened Th1 immune response that leads to an uncontrolled granuloma formation at sites of disease activity. The past few years have seen outstanding advances in the understanding of immunological and molecular events involved in the pathogenesis of this disease. The idea is that several cytokines and chemokines, which are secreted at sites of disease activity, participate in granuloma formation. This paper describes recent data that have clarified some of the events that govern the development of the hypersensitivity reaction during sarcoidosis. In particular, we will review recent evidence indicating that a complex relationship exists between the macrophage/lymphocyte cellular axis and the tissue networks of cytokines.
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Affiliation(s)
- C Agostini
- Department of Clinical and Experimental Medicine, Clinical Immunology Branch, Padua University School of Medicine, Padua, Italy
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45
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Agostini C, Calabrese F, Rea F, Facco M, Tosoni A, Loy M, Binotto G, Valente M, Trentin L, Semenzato G. Cxcr3 and its ligand CXCL10 are expressed by inflammatory cells infiltrating lung allografts and mediate chemotaxis of T cells at sites of rejection. Am J Pathol 2001; 158:1703-11. [PMID: 11337368 PMCID: PMC1891930 DOI: 10.1016/s0002-9440(10)64126-0] [Citation(s) in RCA: 165] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The attraction of T lymphocytes into the pulmonary parenchyma represents an essential step in mechanisms ultimately leading to lung allograft rejection. In this study we evaluated whether IP-10 (CXCL10), a chemokine that is induced by interferon-gamma and stimulates the directional migration of activated T cells, plays a role in regulating the trafficking of effector T cells during lung allograft rejection episodes. Immunohistochemical examination showed that areas characterized by acute cellular rejection (grades 1 to 4) and active obliterative bronchiolitis (chronic rejection, Ca) were infiltrated by T cells expressing CXCR3, i.e., the specific receptor for CXCL10. In parallel, T cells accumulating in the bronchoalveolar lavage of lung transplant recipients with rejection episodes were CXCR3+ and exhibited a strong in vitro migratory capability in response to CXCL10. In lung biopsies, CXCL10 was abundantly expressed by graft-infiltrating macrophages and occasionally by epithelial cells. Alveolar macrophages expressed and secreted definite levels of CXCL10 capable of inducing chemotaxis of the CXCR3+ T-cell line 300-19; the secretory capability of alveolar macrophages was up-regulated by preincubation with interferon-gamma. Interestingly, striking levels of CXCR3 ligands could be demonstrated in the fluid component of the bronchoalveolar lavage in individuals with rejection episodes. These data indicate the role of the CXCR3/CXCL10 interactions in the recruitment of lymphocytes at sites of lung rejection and provide a rationale for the use of agents that block the CXCR3/CXCL10 axis in the treatment of lung allograft rejection.
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Affiliation(s)
- C Agostini
- Department of Clinical and Experimental Medicine, Padua University School of Medicine, Padua, Italy
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46
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Ballon G, Trentin L, De Rossi A, Semenzato G. Telomerase activity and clinical progression in chronic lymphoproliferative disorders of B-cell lineage. Leuk Lymphoma 2001; 41:35-45. [PMID: 11342355 DOI: 10.3109/10428190109057952] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The activation of telomerase, which specifically occurs in neoplastic cells to avoid telomere attrition at each cell division, is a necessary event in tumorigenesis. The evidence that telomerase is also present in normal B cells at different levels according to their differentiation and activation state makes the study of telomerase activity in B cell tumors particularly interesting. This review summarizes data concerning telomerase activity in chronic lymphoproliferative disorders of B-cell lineage (B-CLD), making suggestions regarding B-cell development and B-cell tumor histogenesis. The role of telomerase activity as a potential prognostic marker, as well as a target of new antineoplastic strategies is discussed.
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Affiliation(s)
- G Ballon
- Department of Oncology and Surgical Sciences, Section of Oncology, University of Padova, via Gattamelata 64, 35128 Padova, Italy
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47
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Agostini C, Siviero M, Facco M, Carollo D, Binotto G, Tosoni A, Cattelan AM, Zambello R, Trentin L, Semenzato G. Antiapoptotic effects of IL-15 on pulmonary Tc1 cells of patients with human immunodeficiency virus infection. Am J Respir Crit Care Med 2001; 163:484-9. [PMID: 11179127 DOI: 10.1164/ajrccm.163.2.2006028] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In the early phases of human immunodeficiency virus (HIV) disease a T-cell alveolitis sustained by cytotoxic T lymphocytes (CTL) with anti-HIV activity occurs in the lung. With the progression of HIV disease, pulmonary CTL become infected and their cytotoxic activity declines. To investigate the potential causes leading to this phenomenon, we evaluated T cells obtained from the bronchoalveolar lavage (BAL) of 18 HIV-infected patients with T-cell alveolitis. BAL T cells were CD45R0+/CD8+ defined as Tc1 cells because they expressed cytoplasmic interferon gamma (IFN-gamma) and were CXCR3+/IL-12Rbeta2+. Furthermore, they bore the interleukin (IL)- 15 receptor, Fas antigen, and tumor necrosis factor receptor (TNFR) type II. When cultured for 24 h highly purified BAL T cells showed an excessive spontaneous apoptosis; after activation with anti-CD3 or ionomycin, the proportion of T cells undergoing cell death increased. Interestingly, we found a direct relationship between the predisposition to undergo spontaneous apoptosis and the levels of Fas expression by BAL T cells. Alveolar macrophages (AMs) expressed high levels of IL-15 which paralleled the intensity of T-cell infiltration in most patients. The predisposition of CD8 T cells to undergo cell death was downregulated by the incubation with IL-15; the protective effect of the cytokine was dose-dependent. Nonetheless, AMs also expressed proapoptotic molecules, including membrane TNF-alpha (mTNF-alpha). Based on these observations it may be suggested that an excessive, spontaneous, and activation-induced apoptosis of pulmonary lymphocytes may be observed in HIV lung and that AMs are major regulators of T-cell homeostasis.
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Affiliation(s)
- C Agostini
- Department of Clinical and Experimental Medicine, Padua University School of Medicine, Clinical Immunology Branch, Padua, Italy
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48
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Vitale M, Falco M, Castriconi R, Parolini S, Zambello R, Semenzato G, Biassoni R, Bottino C, Moretta L, Moretta A. Identification of NKp80, a novel triggering molecule expressed by human NK cells. Eur J Immunol 2001; 31:233-42. [PMID: 11265639 DOI: 10.1002/1521-4141(200101)31:1<233::aid-immu233>3.0.co;2-4] [Citation(s) in RCA: 144] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The ability of NK cells to kill a wide range of tumor or virally infected target cells as well as normal allogeneic T cell blasts appears to depend upon the concerted action of multiple triggering NK receptors. In this study, using two specific monoclonal antibodies [(mAb) MA152 and LAP171], we identified a triggering NK receptor expressed at the cell surface as a dimer of approximately 80 kDa (NKp80). NKp80 is expressed by virtually all fresh or activated NK cells and by a minor subset of T cells characterized by the CD56 surface antigen. NKp80 surface expression was also detected in all CD3- and in 6 / 10 CD3+ large granular lymphocyte expansions derived from patients with lymphoproliferative disease of granular lymphocytes. In polyclonal NK cells, mAb-mediated cross-linking of NKp80 resulted in induction of cytolytic activity and Ca2+ mobilization. A marked heterogeneity existed in the magnitude of the cytolytic responses of different NK cell clones to anti-NKp80 mAb. This heterogeneity correlated with the surface density of NKp46 molecules expressed by different NK clones. The mAb-mediated masking of NKp80 led to a partial inhibition of the NK-mediated lysis of appropriate allogeneic phytohemagglutinin-induced T cell blasts, while it had no effect on the lysis of different tumor target cells, including T cell leukemia cells. These data suggest that NKp80 recognizes a ligand on normal T cells that may be down-regulated during tumor transformation. Molecular cloning of the cDNA coding for NKp80 revealed a type II transmembrane molecule of 231 amino acids identical to the putative protein encoded by a recently identified cDNA termed KLRF1.
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Affiliation(s)
- M Vitale
- Istituto Nazionale per la Ricerca sul Cancro, Genova, Italy
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49
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Affiliation(s)
- G Semenzato
- Padua University School of Medicine, Department of Clinical and Experimental Medicine, Italy
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50
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Agostini C, Facco M, Siviero M, Carollo D, Galvan S, Cattelan AM, Zambello R, Trentin L, Semenzato G. CXC chemokines IP-10 and mig expression and direct migration of pulmonary CD8+/CXCR3+ T cells in the lungs of patients with HIV infection and T-cell alveolitis. Am J Respir Crit Care Med 2000; 162:1466-73. [PMID: 11029363 DOI: 10.1164/ajrccm.162.4.2003130] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The recruitment of cytotoxic T lymphocytes (CTL) is considered to be the major tool for the clearance of HIV from the lower respiratory tract. In this study we evaluated the pathophysiologic role of two lymphotactic CXC chemokines (IP-10 and Mig) in the lung of HIV-infected patients. These chemokines stimulate the directional migration of activated T cells and interact with a specific receptor (CXC receptor 3, CXCR3). Lymphocytes recovered from the bronchoalveolar lavage (BAL) of HIV-infected patients with high intensity T-cell alveolitis were CD8+ T cells expressing high levels of CXCR3 and IFN-gamma, a phenotype that is characteristic of Tc1 cells. Pulmonary T cells expressing CXCR3 exhibited a high migratory capability in response to IP-10 and Mig. Alveolar macrophages recovered from patients with T-cell alveolitis bore the IFN-gamma-inducible proteins IP-10 and Mig. A positive correlation was demonstrated between IP-10, Mig, and IL-15 expression by alveolar macrophages. Interestingly, macrophages isolated from the lung of HIV-infected patients with T-cell alveolitis secreted definite levels of CXCR3 ligands capable of inducing T-cell chemotaxis. Taken together, our data suggest that chemotactic ligands that bind CXCR3 contribute significantly to the accumulation of HIV-specific CTL in the lung.
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Affiliation(s)
- C Agostini
- Padua University School of Medicine, Department of Clinical and Experimental Medicine, Clinical Immunology Branch, Padua, Italy
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