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Martucci M, Novelli M, Scarselli V, Di Palma F, Fiorelli F, Bernardini L, Aceti F, Giacchetti N, Sogos C, Pizzuti A. Array-comparative genomic hybridization analysis in a cohort of 130 children with Autism Spectrum Disorders: A single Center Italian Study. Clin Ter 2023; 174:509-517. [PMID: 38048114 DOI: 10.7417/ct.2023.5018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Introduction utism spectrum disorder (ASD) is a heterogeneous clinical condition, and its genetic basis is widely confirmed. The chromosomal microarray analysis (CMA) is a first-line diagnostic test that identifies copy number variants (CNVs). Some of these genomic rearrangements are associated with ASD, but the meaning of most of them is still unknown. Materials and methods We performed a comparative genome hybridization (array-CGH) analysis in 130 children with confirmed ASD. Genetic results were analyzed and compared to clinical phenotype. Results and discussion. 61/130 children carry CNVs, 44 presenting variants of unknown significance (u-CNVs), and 17 with susceptibility-CNVs (c-CNVs). Clinical evaluation showed no differences in cognitive abilities, language and EEG abnormalities, ASD symptoms among CNVs group and other patients. Finally, we highlight the role of GPHN, IMMP2L and ZMYND11, as ASD susceptibility genes. Conclusions Our findings underscore the importance of array-CGH in ASD children since new CNVs and emerging genes appear to be associated with different clinical pictures.
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Affiliation(s)
- M Martucci
- Department of Human Neurosciences, Sapienza University of Rome, Rome, Italy
| | - M Novelli
- Department of Human Neurosciences, Sapienza University of Rome, Rome, Italy
| | - V Scarselli
- Department of Human Neurosciences, Sapienza University of Rome, Rome, Italy
| | - F Di Palma
- Department of Experimental Medicine, Policlinico Umberto I Hospital, Sapienza University of Rome, Rome, Italy
| | - F Fiorelli
- Department of Human Neurosciences, Sapienza University of Rome, Rome, Italy
| | - L Bernardini
- IRCCS Casa Sollievo della Sofferenza Hospital, San Giovanni Rotondo, Italy
| | - F Aceti
- Department of Human Neurosciences, Sapienza University of Rome, Rome, Italy
| | - N Giacchetti
- Department of Human Neurosciences, Sapienza University of Rome, Rome, Italy
| | - C Sogos
- Department of Human Neurosciences, Sapienza University of Rome, Rome, Italy
| | - A Pizzuti
- Department of Experimental Medicine, Policlinico Umberto I Hospital, Sapienza University of Rome, Rome, Italy
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Brouwer NPM, Lord AC, Terlizzo M, Bateman AC, West NP, Goldin R, Martinez A, Wong NACS, Novelli M, Nagtegaal ID, Brown G. Interobserver variation in the classification of tumor deposits in rectal cancer-is the use of histopathological characteristics the way to go? Virchows Arch 2021; 479:1111-1118. [PMID: 34480612 PMCID: PMC8724135 DOI: 10.1007/s00428-021-03197-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 08/16/2021] [Accepted: 08/26/2021] [Indexed: 11/29/2022]
Abstract
The focus on lymph node metastases (LNM) as the most important prognostic marker in colorectal cancer (CRC) has been challenged by the finding that other types of locoregional spread, including tumor deposits (TDs), extramural venous invasion (EMVI), and perineural invasion (PNI), also have significant impact. However, there are concerns about interobserver variation when differentiating between these features. Therefore, this study analyzed interobserver agreement between pathologists when assessing routine tumor nodules based on TNM 8. Electronic slides of 50 tumor nodules that were not treated with neoadjuvant therapy were reviewed by 8 gastrointestinal pathologists. They were asked to classify each nodule as TD, LNM, EMVI, or PNI, and to list which histological discriminatory features were present. There was overall agreement of 73.5% (κ 0.38, 95%-CI 0.33–0.43) if a nodal versus non-nodal classification was used, and 52.2% (κ 0.27, 95%-CI 0.23–0.31) if EMVI and PNI were classified separately. The interobserver agreement varied significantly between discriminatory features from κ 0.64 (95%-CI 0.58–0.70) for roundness to κ 0.26 (95%-CI 0.12–0.41) for a lone arteriole sign, and the presence of discriminatory features did not always correlate with the final classification. Since extranodal pathways of spread are prognostically relevant, classification of tumor nodules is important. There is currently no evidence for the prognostic relevance of the origin of TD, and although some histopathological characteristics showed good interobserver agreement, these are often non-specific. To optimize interobserver agreement, we recommend a binary classification of nodal versus extranodal tumor nodules which is based on prognostic evidence and yields good overall agreement.
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Affiliation(s)
- Nelleke P M Brouwer
- Department of Pathology, Radboud University Medical Centre, Geert-Grooteplein Zuid 10, 6500 HB, Nijmegen, The Netherlands.
| | - A C Lord
- Department of Gastrointestinal Imaging, Royal Marsden NHS Foundation Trust, London, UK
| | - M Terlizzo
- Department of Gastrointestinal Imaging, Royal Marsden NHS Foundation Trust, London, UK
| | - A C Bateman
- Department of Pathology, University Hospital Southampton, Southampton, UK
| | - N P West
- Department of Pathology, University of Leeds, Leeds, UK
| | - R Goldin
- Department of Pathology, Imperial College, London, UK
| | - A Martinez
- Department of Pathology, St Marks Hospital, London, UK
| | - N A C S Wong
- Department of Pathology, University of Bristol, Bristol, UK
| | - M Novelli
- Department of Pathology, University College London, London, UK
| | - I D Nagtegaal
- Department of Pathology, Radboud University Medical Centre, Geert-Grooteplein Zuid 10, 6500 HB, Nijmegen, The Netherlands
| | - G Brown
- Department of Gastrointestinal Imaging, Royal Marsden NHS Foundation Trust, London, UK
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Rizzo A, Frega G, Palloni A, Piemontese A, Di Federico A, Ricci A, Carloni R, Fabbri F, Novelli M, Tavolari S, Di Marco M, Ravaioli M, Brandi G. P-69 Intensive follow-up program and oncological outcomes of 278 biliary tract cancer patients after curative intent surgery: A single-center retrospective experience. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Pucher PH, Green M, Bateman AC, Underwood TJ, Maynard N, Allum WH, Novelli M, Gossage JA. Variation in histopathological assessment and association with surgical quality indicators following oesophagectomy. Br J Surg 2021; 108:74-79. [PMID: 33640940 DOI: 10.1093/bjs/znaa038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/04/2020] [Accepted: 09/15/2020] [Indexed: 12/26/2022]
Abstract
BACKGROUND Histopathological outcomes, such as lymph node yield and margin positivity, are used to benchmark and assess surgical centre quality, and are reported annually by the National Oesophago-Gastric Cancer Audit (NOGCA) in England and Wales. The variation in pathological specimen assessment and how this affects these outcomes is not known. METHODS A survey of practice was circulated to all tertiary oesophagogastric cancer centres across England and Wales. Questions captured demographic data, and information on how specimens were prepared and analysed. National performance data were retrieved from the NOGCA. Survey results were compared for tertiles of lymph node yield, and circumferential and longitudinal margins. RESULTS Survey responses were received from 32 of 37 units (86 per cent response rate), accounting for 93.1 per cent of the total oesophagectomy volume in England and Wales. Only 5 of 32 units met or exceeded current guidelines on specimen preparation according to the Royal College of Pathologists guidelines. There was wide variation in how centres defined positive (R1) margins, and how margins and lymph nodes were assessed. Centres with the highest nodal yield were more likely to use systematic fat blocking, and to re-examine specimens when the initial load was low. Systematic blocking of lesser curve fat resulted in significantly higher rates of patients with at least 15 lymph nodes examined (91.4 versus 86.5 per cent; P = 0.027). CONCLUSION Preparation and histopathological assessment of specimens varies significantly across institutions. This challenges the validity of currently used surgical quality metrics for oesophageal and other tumours.
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Affiliation(s)
- P H Pucher
- Department of General Surgery, Guy's and St Thomas' Hospital NHS Foundation Trust, London, UK
| | - M Green
- Department of Histopathology, Guy's and St Thomas' Hospital NHS Foundation Trust, London, UK
| | - A C Bateman
- Department of Histopathology, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - T J Underwood
- Department of General Surgery, University Hospital Southampton NHS Foundation Trust, Southampton, UK
- School of Cancer Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - N Maynard
- Department of General Surgery, Oxford University Hospital NHS Foundation Trust, Oxford, UK
| | - W H Allum
- Department of General Surgery, Royal Marsden Hospital NHS Foundation Trust, London, UK
| | - M Novelli
- Department of Histopathology, University College London Hospitals NHS Foundation Trust, London, UK
| | - J A Gossage
- Department of General Surgery, Guy's and St Thomas' Hospital NHS Foundation Trust, London, UK
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5
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Kempf W, Mitteldorf C, Battistella M, Willemze R, Cerroni L, Santucci M, Geissinger E, Jansen P, Vermeer MH, Marschalko M, Papadavid E, Piris MA, Ortiz-Romero PL, Novelli M, Paulli M, Quaglino P, Ranki A, Rodríguez Peralto JL, Wobser M, Auschra B, Robson A. Primary cutaneous peripheral T-cell lymphoma, not otherwise specified: results of a multicentre European Organization for Research and Treatment of Cancer (EORTC) cutaneous lymphoma taskforce study on the clinico-pathological and prognostic features. J Eur Acad Dermatol Venereol 2020; 35:658-668. [PMID: 32997839 DOI: 10.1111/jdv.16969] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Accepted: 09/10/2020] [Indexed: 01/06/2023]
Abstract
BACKGROUND Cutaneous peripheral T-cell lymphoma, not otherwise specified (PTL NOS) is an aggressive, but poorly characterized neoplasm. OBJECTIVES The European Organization for Research and Treatment of Cancer cutaneous lymphoma taskforce (EORTC CLTF) investigated 33 biopsies of 30 patients with primary cutaneous PTL NOS to analyse their clinical, histological, immunophenotypic features and outcome. METHODS Retrospective analysis of clinical data and histopathological features by an expert panel. RESULTS Cutaneous PTL NOS manifested clinically either with solitary or disseminated rapidly grown ulcerated tumours or disseminated papulo-nodular lesions. Histologically, a mostly diffuse or nodular infiltrate in the dermis and often extending into the subcutis was found. Epidermotropism was rarely present and only mild and focal. Unusual phenotypes were frequent, e.g. CD3+ /CD4- /CD8- and CD3+ /CD4+ /CD8+ . Moreover, 18% of the cases exhibited an aberrant expression of the B-cell marker CD20 by the tumour cells. All solitary tumours were located on the limbs and presented a high expression of GATA-3 but this did not correlate with outcome and therefore could not serve as a prognostic factor. The prognosis was shown to be generally poor with 10 of 30 patients (33%) dying of lymphoma within the follow-up of 36 months (mean value; range 3-144). The survival rates were 61% after 3 years (CI, 43-85%) and 54% after 5 years (CI, 36-81%). Small to medium-sized morphology of tumour cells was associated with a better outcome than medium to large or large tumour cells. Age, gender, clinical stage, CD4/CD8 phenotype and GATA-3 expression were not associated with prognosis. Chemotherapy was the most common treatment modality, but surgical excision and/or radiotherapy may represent an appropriate first-line treatment for solitary lesions. CONCLUSIONS Cutaneous PTL NOS shows an aggressive course in most patients independent of initial presentation, age and phenotype. Cytomorphology was identified as a prognostic factor. The data indicate a need for more effective treatment modalities in PTL NOS.
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Affiliation(s)
- W Kempf
- Histologische Diagnostik, Kempf und Pfaltz, Zürich, Switzerland.,Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - C Mitteldorf
- Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen, Germany
| | - M Battistella
- Department of Pathology, Saint-Louis Hospital, Assistance Publique-Hôpitaux de Paris, Paris University, INSERM U976, Paris, France
| | - R Willemze
- Department of Dermatology, Leiden University Medical Center, Leiden, The Netherlands
| | - L Cerroni
- Department of Dermatology, Medical University of Graz, Graz, Austria
| | - M Santucci
- Department of Health Sciences, University of Florence School of Human Health Sciences, Florence, Italy.,Division of Histopathology and Molecular Diagnostics, Careggi University Hospital, Florence, Italy
| | - E Geissinger
- Institute of Pathology, University of Würzburg, Würzburg, Germany
| | - P Jansen
- Department of Clinical Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - M H Vermeer
- Department of Dermatology, Leiden University Medical Center, Leiden, The Netherlands
| | - M Marschalko
- Department of Dermatology and Venerology, Semmelweis Medical University, Budapest, Hungary
| | - E Papadavid
- Department of Dermatology-Venereology, Attikon University Hospital, National Kapodistrian University of Athens, Athens, Greece
| | - M A Piris
- Department of Pathology, Fundacion Jimenez Diaz, CIBERONC, Madrid, Spain
| | - P L Ortiz-Romero
- Department of Dermatology, Hospital 12 de Octubre, Medical School, Institute i+12, University Complutense, Madrid, Spain
| | - M Novelli
- Cutaneous Immunopathology Laboratory, Dermatology Clinic, Department of Medical Sciences, University of Turin, Turin, Italy
| | - M Paulli
- Department of Molecular Pathology, University of Pavia, Pavia, Italy.,Department of Anatomic Pathology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - P Quaglino
- Dermatologic Clinic, Dept Medical Sciences, University of Turin Medical School, Torino, Italy
| | - A Ranki
- Department of Dermatology and Allergology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - J L Rodríguez Peralto
- Department of Pathology, Hospital Universitario 12 de Octubre, Universidad, Complutense, Instituto de Investigación I+12, Madrid, Spain
| | - M Wobser
- Department of Dermatology, University of Würzburg, Würzburg, Germany
| | - B Auschra
- Department of Consultation-Liaison Psychiatry and Psychosomatic Medicine, University Hospital Zurich, Zurich, Switzerland
| | - A Robson
- Institute of Oncology, Lisbon, Portugal.,LDPath, London, UK
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6
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Danielsen HE, Hveem TS, Domingo E, Pradhan M, Kleppe A, Syvertsen RA, Kostolomov I, Nesheim JA, Askautrud HA, Nesbakken A, Lothe RA, Svindland A, Shepherd N, Novelli M, Johnstone E, Tomlinson I, Kerr R, Kerr DJ. Prognostic markers for colorectal cancer: estimating ploidy and stroma. Ann Oncol 2018; 29:616-623. [PMID: 29293881 PMCID: PMC5889021 DOI: 10.1093/annonc/mdx794] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Background We report here the prognostic value of ploidy and digital tumour-stromal morphometric analyses using material from 2624 patients with early stage colorectal cancer (CRC). Patients and methods DNA content (ploidy) and stroma-tumour fraction were estimated using automated digital imaging systems and DNA was extracted from sections of formalin-fixed paraffin-embedded (FFPE) tissue for analysis of microsatellite instability. Samples were available from 1092 patients recruited to the QUASAR 2 trial and two large observational series (Gloucester, n = 954; Oslo University Hospital, n = 578). Resultant biomarkers were analysed for prognostic impact using 5-year cancer-specific survival (CSS) as the clinical end point. Results Ploidy and stroma-tumour fraction were significantly prognostic in a multivariate model adjusted for age, adjuvant treatment, and pathological T-stage in stage II patients, and the combination of ploidy and stroma-tumour fraction was found to stratify these patients into three clinically useful groups; 5-year CSS 90% versus 83% versus 73% [hazard ratio (HR) = 1.77 (95% confidence interval (95% CI): 1.13-2.77) and HR = 2.95 (95% CI: 1.73-5.03), P < 0.001]. Conclusion A novel biomarker, combining estimates of ploidy and stroma-tumour fraction, sampled from FFPE tissue, identifies stage II CRC patients with low, intermediate or high risk of CRC disease specific death, and can reliably stratify clinically relevant patient sub-populations with differential risks of tumour recurrence and may support choice of adjuvant therapy for these individuals.
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Affiliation(s)
- H E Danielsen
- Institute for Cancer Genetics and Informatics, Oslo University Hospital, Oslo, Norway; Centre for Cancer Biomedicine, University of Oslo, Oslo, Norway; Nuffield Division of Clinical Laboratory Sciences, University of Oxford, Oxford, UK; Department of Informatics, University of Oslo, Oslo, Norway
| | - T S Hveem
- Institute for Cancer Genetics and Informatics, Oslo University Hospital, Oslo, Norway; Centre for Cancer Biomedicine, University of Oslo, Oslo, Norway; Department of Informatics, University of Oslo, Oslo, Norway
| | - E Domingo
- Department of Oncology, University of Oxford, Oxford, UK; Molecular and Population Genetics Laboratory, University of Oxford, Oxford, UK; Oxford NIHR Comprehensive Biomedical Research Centre, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | - M Pradhan
- Institute for Cancer Genetics and Informatics, Oslo University Hospital, Oslo, Norway; Centre for Cancer Biomedicine, University of Oslo, Oslo, Norway
| | - A Kleppe
- Institute for Cancer Genetics and Informatics, Oslo University Hospital, Oslo, Norway; Centre for Cancer Biomedicine, University of Oslo, Oslo, Norway; Department of Informatics, University of Oslo, Oslo, Norway
| | - R A Syvertsen
- Institute for Cancer Genetics and Informatics, Oslo University Hospital, Oslo, Norway; Centre for Cancer Biomedicine, University of Oslo, Oslo, Norway
| | - I Kostolomov
- Institute for Cancer Genetics and Informatics, Oslo University Hospital, Oslo, Norway
| | - J A Nesheim
- Institute for Cancer Genetics and Informatics, Oslo University Hospital, Oslo, Norway; Centre for Cancer Biomedicine, University of Oslo, Oslo, Norway
| | - H A Askautrud
- Institute for Cancer Genetics and Informatics, Oslo University Hospital, Oslo, Norway; Centre for Cancer Biomedicine, University of Oslo, Oslo, Norway
| | - A Nesbakken
- Centre for Cancer Biomedicine, University of Oslo, Oslo, Norway; Institute of Clinical Medicine, University of Oslo, Oslo; Department of Gastrointestinal Surgery, Oslo University Hospital, Oslo; K.G. Jebsen Colorectal Cancer Research Centre, Oslo University Hospital, Oslo
| | - R A Lothe
- Centre for Cancer Biomedicine, University of Oslo, Oslo, Norway; K.G. Jebsen Colorectal Cancer Research Centre, Oslo University Hospital, Oslo; Department of Molecular Oncology, Institute for Cancer Research, Oslo University Hospital - Norwegian Radium Hospital, Oslo; Department of Biosciences, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo
| | - A Svindland
- Institute of Clinical Medicine, University of Oslo, Oslo; Department of Pathology, Oslo University Hospital, Oslo, Norway
| | - N Shepherd
- Gloucestershire Cellular Pathology Laboratory, Cheltenham General Hospital, Cheltenham
| | - M Novelli
- Research Department of Pathology, University College London Medical School, London, UK
| | - E Johnstone
- Department of Oncology, University of Oxford, Oxford, UK
| | - I Tomlinson
- Molecular and Population Genetics Laboratory, University of Oxford, Oxford, UK
| | - R Kerr
- Department of Oncology, University of Oxford, Oxford, UK
| | - D J Kerr
- Nuffield Division of Clinical Laboratory Sciences, University of Oxford, Oxford, UK.
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7
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Bergallo M, Fava P, Galliano I, Novelli M, Montanari P, Daprà V, Rassu M, Quaglino P, Fierro MT. Molecular genetic analyses of human endogenous retroviral elements belonging to the HERV-P and HERV-R family in primary cutaneous T-cell lymphomas. J Eur Acad Dermatol Venereol 2018; 32:e297-e298. [PMID: 29405482 DOI: 10.1111/jdv.14840] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- M Bergallo
- Department of Pediatrics, Infectious Diseases Unit, Regina Margherita Children's Hospital, University of Turin, Turin, Italy
| | - P Fava
- Section of Dermatology, Department of Medical Sciences, University of Turin, Turin, Italy
| | - I Galliano
- Department of Pediatrics, Infectious Diseases Unit, Regina Margherita Children's Hospital, University of Turin, Turin, Italy
| | - M Novelli
- Section of Dermatology, Department of Medical Sciences, University of Turin, Turin, Italy
| | - P Montanari
- Department of Pediatrics, Infectious Diseases Unit, Regina Margherita Children's Hospital, University of Turin, Turin, Italy
| | - V Daprà
- Department of Pediatrics, Infectious Diseases Unit, Regina Margherita Children's Hospital, University of Turin, Turin, Italy
| | - M Rassu
- Department of Pediatrics, Infectious Diseases Unit, Regina Margherita Children's Hospital, University of Turin, Turin, Italy
| | - P Quaglino
- Section of Dermatology, Department of Medical Sciences, University of Turin, Turin, Italy
| | - M T Fierro
- Section of Dermatology, Department of Medical Sciences, University of Turin, Turin, Italy
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Trevisson C, Ram-Wolff C, Quaglino P, Battistella M, Vignon-Pennamen MD, Rivet J, Tomasini C, Novelli M, Fierro M, Bagot M. Intérêt de la distinction de deux formes cliniques de mycosis fongoïde folliculotrope : analyse dans deux centres de référence. Ann Dermatol Venereol 2017. [DOI: 10.1016/j.annder.2017.09.040] [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: 10/18/2022]
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9
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Novelli M, Machado S, Lima G, Cantatore L, Sena B, Rodrigues R, Gitlin L, Yassuda M. THE EFFECTS OF THE BRAZILIAN VERSION OF THE TAILORED ACTIVITY PROGRAM (TAP-BR) IN DEMENTIA CARE. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.3538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- M. Novelli
- Management and Health Care Department, Federal University of São Paulo, Santos, Sao Paulo, Brazil,
| | - S. Machado
- Management and Health Care Department, Federal University of São Paulo, Santos, Sao Paulo, Brazil,
| | - G. Lima
- Management and Health Care Department, Federal University of São Paulo, Santos, Sao Paulo, Brazil,
| | - L. Cantatore
- Management and Health Care Department, Federal University of São Paulo, Santos, Sao Paulo, Brazil,
| | - B.P. Sena
- Management and Health Care Department, Federal University of São Paulo, Santos, Sao Paulo, Brazil,
| | - R.S. Rodrigues
- Management and Health Care Department, Federal University of São Paulo, Santos, Sao Paulo, Brazil,
| | - L.N. Gitlin
- Johns Hpkins University, Baltimore, Maryland,
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Spiro S, Shah P, Rintoul R, George J, Janes S, Callister M, Novelli M, Shaw P, Griffths C, Falzon M, Kocjan G, Booton R, Magee N, Peake M, Dhillon P, Sridharan K, Allen J, Chinyanganya N, Ashford-Turner V, Counsell N, Hackshaw A. S128 Lungsearch: a randomised controlled trial of surveillance for the early detection of lung cancer in a high risk group. Thorax 2016. [DOI: 10.1136/thoraxjnl-2016-209333.134] [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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11
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Glaire M, Domingo E, Vermeulen L, van Wezel T, Liefers GJ, Lothe R, Nesbakkend A, Danielsen S, Zlobec I, Koelzer V, Berger M, Castellví-Bel S, de Bruyn M, Novelli M, Tejpar S, Delorenzi M, Kerr R, Kerr D, Tomlinson I, Church D. POLE proofreading domain mutation defines a subset of immunogenic colorectal cancers with excellent prognosis. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw370.09] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Romano A, Di Giuliano A, Gallucci K, Foscolo P, Cortelli C, Gori S, Novelli M. Simulation of an industrial turbulent fluidized bed reactor for n-butane partial oxidation to maleic anhydride. Chem Eng Res Des 2016. [DOI: 10.1016/j.cherd.2016.08.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Fotheringham S, Danielsen H, Hveem T, Domingo E, Pradhan M, Syvertsen R, Kostolomov I, Nesheim J, Johnstone E, Novelli M, Tomlinson I, Kerr R, Kerr D. O-016 A prognostic marker for colorectal cancer: combining analyses of ploidy and stroma. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw198.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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14
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Fava P, Bergallo M, Astrua C, Brizio M, Galliano I, Montanari P, Daprà V, Novelli M, Savoia P, Quaglino P, Fierro M. miR-155 expression in Primary Cutaneous T-Cell Lymphomas (CTCL). J Eur Acad Dermatol Venereol 2016; 31:e27-e29. [DOI: 10.1111/jdv.13597] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 11/17/2015] [Accepted: 12/04/2015] [Indexed: 02/05/2023]
Affiliation(s)
- P. Fava
- Section of Dermatology; Department of Medical Sciences; University of Turin; Turin Italy
| | - M. Bergallo
- Medical School; Department of Public Health and Pediatric Sciences; University of Turin; Turin Italy
| | - C. Astrua
- Section of Dermatology; Department of Medical Sciences; University of Turin; Turin Italy
| | - M. Brizio
- Section of Dermatology; Department of Medical Sciences; University of Turin; Turin Italy
| | - I. Galliano
- Medical School; Department of Public Health and Pediatric Sciences; University of Turin; Turin Italy
| | - P. Montanari
- Medical School; Department of Public Health and Pediatric Sciences; University of Turin; Turin Italy
| | - V. Daprà
- Medical School; Department of Public Health and Pediatric Sciences; University of Turin; Turin Italy
| | - M. Novelli
- Section of Dermatology; Department of Medical Sciences; University of Turin; Turin Italy
| | - P. Savoia
- Section of Dermatology; Department of Medical Sciences; University of Turin; Turin Italy
| | - P. Quaglino
- Section of Dermatology; Department of Medical Sciences; University of Turin; Turin Italy
| | - M.T. Fierro
- Section of Dermatology; Department of Medical Sciences; University of Turin; Turin Italy
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Mouralidarane A, Soeda J, Sugden D, Bocianowska A, Carter R, Ray S, Saraswati R, Cordero P, Novelli M, Fusai G, Vinciguerra M, Poston L, Taylor PD, Oben JA. Maternal obesity programs offspring non-alcoholic fatty liver disease through disruption of 24-h rhythms in mice. Int J Obes (Lond) 2015; 39:1339-48. [PMID: 25971926 DOI: 10.1038/ijo.2015.85] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2015] [Revised: 03/25/2015] [Accepted: 05/06/2015] [Indexed: 02/08/2023]
Abstract
BACKGROUND Maternal obesity increases offspring propensity to metabolic dysfunctions and to non-alcoholic fatty liver disease (NAFLD), which may lead to cirrhosis or liver cancer. The circadian clock is a transcriptional/epigenetic molecular machinery synchronising physiological processes to coordinate energy utilisation within a 24-h light/dark period. Alterations in rhythmicity have profound effects on metabolic pathways, which we sought to investigate in offspring with programmed NAFLD. METHODS Mice were fed a standard or an obesogenic diet (OD), before and throughout pregnancy, and during lactation. Offspring were weaned onto standard or an OD at 3 weeks postpartum and housed in 12:12 light/dark conditions. Biochemical and histological indicators of NAFLD and fibrosis, analysis of canonical clock genes with methylation status and locomotor activity were investigated at 6 months. RESULTS We show that maternal obesity interacts with an obesogenic post-weaning diet to promote the development of NAFLD with disruption of canonical metabolic rhythmicity gene expression in the liver. We demonstrate hypermethylation of BMAL-1 (brain and muscle Arnt like-1) and Per2 promoter regions and altered 24-h rhythmicity of hepatic pro-inflammatory and fibrogenic mediators. CONCLUSIONS These data implicate disordered circadian rhythms in NAFLD and suggest that disruption of this system during critical developmental periods may be responsible for the onset of chronic liver disease in adulthood.
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Affiliation(s)
- A Mouralidarane
- Institute for Liver and Digestive Health, University College London, Royal Free Hospital, London, UK
- Women's Health Academic Centre, King's College London, St Thomas' Hospital, London, UK
| | - J Soeda
- Institute for Liver and Digestive Health, University College London, Royal Free Hospital, London, UK
| | - D Sugden
- Women's Health Academic Centre, King's College London, St Thomas' Hospital, London, UK
| | - A Bocianowska
- Women's Health Academic Centre, King's College London, St Thomas' Hospital, London, UK
| | - R Carter
- Institute for Liver and Digestive Health, University College London, Royal Free Hospital, London, UK
| | - S Ray
- Institute for Liver and Digestive Health, University College London, Royal Free Hospital, London, UK
| | - R Saraswati
- Histopathology Department, University College Hospital, University College London, London, UK
| | - P Cordero
- Institute for Liver and Digestive Health, University College London, Royal Free Hospital, London, UK
| | - M Novelli
- Histopathology Department, University College Hospital, University College London, London, UK
| | - G Fusai
- Department of Liver Medicine and Transplant, Sheila Sherlock Liver Centre, University College London, Royal Free Hospital, London, UK
| | - M Vinciguerra
- Institute for Liver and Digestive Health, University College London, Royal Free Hospital, London, UK
- Gastroenterology Unit, Casa Sollievo della Sofferenza Hospital, San Giovanni Rotondo, Italy
- School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - L Poston
- Women's Health Academic Centre, King's College London, St Thomas' Hospital, London, UK
| | - P D Taylor
- Women's Health Academic Centre, King's College London, St Thomas' Hospital, London, UK
| | - J A Oben
- Institute for Liver and Digestive Health, University College London, Royal Free Hospital, London, UK
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Haidry RJ, Butt MA, Dunn JM, Gupta A, Lipman G, Smart HL, Bhandari P, Smith L, Willert R, Fullarton G, Di Pietro M, Gordon C, Penman I, Barr H, Patel P, Kapoor N, Hoare J, Narayanasamy R, Ang Y, Veitch A, Ragunath K, Novelli M, Lovat LB. Improvement over time in outcomes for patients undergoing endoscopic therapy for Barrett's oesophagus-related neoplasia: 6-year experience from the first 500 patients treated in the UK patient registry. Gut 2015; 64:1192-9. [PMID: 25539672 PMCID: PMC4515987 DOI: 10.1136/gutjnl-2014-308501] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 11/29/2014] [Indexed: 02/06/2023]
Abstract
BACKGROUND Barrett's oesophagus (BE) is a pre-malignant condition leading to oesophageal adenocarcinoma (OAC). Treatment of neoplasia at an early stage is desirable. Combined endoscopic mucosal resection (EMR) followed by radiofrequency ablation (RFA) is an alternative to surgery for patients with BE-related neoplasia. METHODS We examined prospective data from the UK registry of patients undergoing RFA/EMR for BE-related neoplasia from 2008 to 2013. Before RFA, visible lesions were removed by EMR. Thereafter, patients had RFA 3-monthly until all BE was ablated or cancer developed (endpoints). End of treatment biopsies were recommended at around 12 months from first RFA treatment or when endpoints were reached. Outcomes for clearance of dysplasia (CR-D) and BE (CR-IM) at end of treatment were assessed over two time periods (2008-2010 and 2011-2013). Durability of successful treatment and progression to OAC were also evaluated. RESULTS 508 patients have completed treatment. CR-D and CR-IM improved significantly between the former and later time periods, from 77% and 56% to 92% and 83%, respectively (p<0.0001). EMR for visible lesions prior to RFA increased from 48% to 60% (p=0.013). Rescue EMR after RFA decreased from 13% to 2% (p<0.0001). Progression to OAC at 12 months is not significantly different (3.6% vs 2.1%, p=0.51). CONCLUSIONS Clinical outcomes for BE neoplasia have improved significantly over the past 6 years with improved lesion recognition and aggressive resection of visible lesions before RFA. Despite advances in technique, the rate of cancer progression remains 2-4% at 1 year in these high-risk patients. TRIAL REGISTRATION NUMBER ISRCTN93069556.
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Affiliation(s)
- R J Haidry
- Research Department of Tissue and Energy, Division of Surgery and Interventional Science, University College London, London, UK,Department of Gastroenterology, University College Hospital NHS Foundation Trust, London, UK
| | - M A Butt
- Research Department of Tissue and Energy, Division of Surgery and Interventional Science, University College London, London, UK
| | - J M Dunn
- Guy's and St Thomas’ NHS foundation Trust, London, UK,Institute for Cancer Genetics and Informatics, Oslo University, Oslo, Norway
| | - A Gupta
- Department of Gastroenterology, University College Hospital NHS Foundation Trust, London, UK
| | - G Lipman
- Research Department of Tissue and Energy, Division of Surgery and Interventional Science, University College London, London, UK
| | - H L Smart
- Department of Gastroenterology and Hepatology, Royal Liverpool University Hospital, Liverpool, UK
| | - P Bhandari
- Princess Alexandra Hospital, Portsmouth, UK
| | - L Smith
- Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK
| | - R Willert
- Central Manchester University Hospitals NHS Foundation Trust, Manchester,UK
| | | | | | - C Gordon
- Royal Bournemouth Hospital, Bournemouth, UK
| | - I Penman
- Royal Infirmary Edinburgh, Edinburgh, UK
| | - H Barr
- Oesophagogastric Surgery, Gloucestershire Hospital NHS Trust, Birmingham, UK
| | - P Patel
- Department of Gastroenterology, Southampton University Hospital, Southampton, UK
| | - N Kapoor
- Digestive Diseases Centre, Aintree University Hospital, Liverpool, UK
| | - J Hoare
- St Mary's Hospital NHS Trust, London, UK
| | | | - Y Ang
- Centre of Gastrointestinal Sciences, University of Manchester, Salford Royal Foundation NHS Trust, Salford, UK
| | - A Veitch
- Department of Gastroenterology, Royal Wolverhampton Hospitals NHS Trust, Wolverhampton, UK
| | - K Ragunath
- Department of Gastroenterology, Nottingham University Hospital NHS Trust, Nottingham, UK
| | - M Novelli
- Department of Gastroenterology, University College Hospital NHS Foundation Trust, London, UK
| | - L B Lovat
- Research Department of Tissue and Energy, Division of Surgery and Interventional Science, University College London, London, UK,Department of Gastroenterology, University College Hospital NHS Foundation Trust, London, UK
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17
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Quaglino P, Fava P, Caproni M, Antiga E, De Simone C, Papini M, Parodi A, Novelli M, Osella-Abate S, Ribero S, Sanlorenzo M, Ponti R, Fierro M, Marzano A, Savoia P. Phenotypical characterization of circulating cell subsets in pyoderma gangrenosum patients: the experience of the Italian immuno-pathology group. J Eur Acad Dermatol Venereol 2015; 30:655-8. [DOI: 10.1111/jdv.13100] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Accepted: 02/17/2015] [Indexed: 12/18/2022]
Affiliation(s)
- P. Quaglino
- Dermatologic Clinic; Department of Medical Sciences; University of Turin; Turin Italy
| | - P. Fava
- Dermatologic Clinic; Department of Medical Sciences; University of Turin; Turin Italy
| | - M. Caproni
- Section of Dermatology; Department of Surgery and Translational Medicine; University of Florence; Florence Italy
| | - E. Antiga
- Section of Dermatology; Department of Surgery and Translational Medicine; University of Florence; Florence Italy
| | - C. De Simone
- Dermatologic Clinic; Catholic University of the Sacred Heart; Rome Italy
| | - M. Papini
- Dermatologic Clinic; Department of Surgical and Biomedical Sciences; University of Terni; Terni Italy
| | - A. Parodi
- Section of Dermatology; DISSAL; IRCCS San Martino- IST; Genoa Italy
| | - M. Novelli
- Dermatologic Clinic; Department of Medical Sciences; University of Turin; Turin Italy
| | - S. Osella-Abate
- Dermatologic Clinic; Department of Medical Sciences; University of Turin; Turin Italy
| | - S. Ribero
- Dermatologic Clinic; Department of Medical Sciences; University of Turin; Turin Italy
| | - M. Sanlorenzo
- Dermatologic Clinic; Department of Medical Sciences; University of Turin; Turin Italy
| | - R. Ponti
- Dermatologic Clinic; Department of Medical Sciences; University of Turin; Turin Italy
| | - M.T. Fierro
- Dermatologic Clinic; Department of Medical Sciences; University of Turin; Turin Italy
| | - A.V. Marzano
- Dermatologic Clinic; Department of Medical and Surgical Physiopathology and Transplants; IRCCS Cà Granda Foundation; University of Milan Policlinic; Milan Italy
| | - P. Savoia
- Dermatologic Clinic; Department of Medical Sciences; University of Turin; Turin Italy
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18
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Fava P, Merlino C, Novelli M, Ponti R, Galliano I, Montanari P, Tovo PA, Fierro MT, Bergallo M. HPyV6, HPyV7 and TSPyV DNA sequences detection in skin disease patients and healthy subjects. J Eur Acad Dermatol Venereol 2015; 30:624-7. [PMID: 25809796 DOI: 10.1111/jdv.13094] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Accepted: 02/12/2015] [Indexed: 01/29/2023]
Abstract
BACKGROUND The discovery, from 2007, of eight new human polyomaviruses (HPyVs) has revived interest in the Polyomaviridae family and their association with human diseases and cancer. In particular, HPyV6 and HPyV7 were discovered in skin swabs of healthy donors and TSPyV was discovered in a heart transplant recipient affected by virus-associated Trichodysplasia Spinulosa (TS), a rare skin disease, exclusively found in immunocompromised patients. OBJECTIVE The presence of HPyV6, HPyV7 and TSPyV DNA in skin biopsies from patients affected by different skin diseases (cancers and inflammatory disorders) has been evaluated to confirm their skin tropism and the possible pathological association. METHODS DNA extracted was amplified with HPyV6, HPyV7 and TSPyV specific PCR real time on Taqman platform with standard profile. RESULTS HPyV7 and TSPyV sequences were not found in any skin specimen analysed. HPyV6, on the other hand, was detected in 30% of samples from healthy subjects vs. 14.3% of skin cancer patients and 2.9% of inflammatory disorders. HPyV6 sequences have been detected in primary cutaneous T-cell lymphoma (CTCL) patients (in 18.6% out of Mycosis Fungoides (MF) patients and in 16.7% out of CTCL not MF/SS(Sèzary syndrome) but have not been detected in primary cutaneous B-cell lymphoma (CBCL) patients. CONCLUSION Our preliminary data suggest that these three novel human polyomaviruses seem not to play a significant role neither in the pathogenesis of cutaneous malignancies nor in that of inflammatory disorders but, according to literature, can inhabit the skin. On the basis of our data regarding the HPyV6 DNA presence with decreasing percentages in healthy subjects, skin cancer and inflammatory disorders patients, it could be an intriguing matter to study if the activated innate immune response in inflammatory disorders can suppress the virus. Further investigations are needed to better understand their relationship with the human host and its innate immune system.
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Affiliation(s)
- P Fava
- Department of Medical Sciences, Dermatology Section, Turin, Italy
| | - C Merlino
- Department of Public Health and Pediatrics, Microbiology Section, Turin, Italy
| | - M Novelli
- Department of Medical Sciences, Dermatology Section, Turin, Italy
| | - R Ponti
- Department of Medical Sciences, Dermatology Section, Turin, Italy
| | - I Galliano
- Department of Public Health and Pediactrics, Cytoimmunodiagnostic Laboratory, University of Torino, Turin, Italy
| | - P Montanari
- Department of Public Health and Pediactrics, Cytoimmunodiagnostic Laboratory, University of Torino, Turin, Italy
| | - P A Tovo
- Department of Public Health and Pediactrics, Cytoimmunodiagnostic Laboratory, University of Torino, Turin, Italy
| | - M T Fierro
- Department of Medical Sciences, Dermatology Section, Turin, Italy
| | - M Bergallo
- Department of Public Health and Pediactrics, Cytoimmunodiagnostic Laboratory, University of Torino, Turin, Italy
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Martino L, Masini M, Novelli M, Giacopelli D, Beffy P, Masiello P, De Tata V. The aryl receptor inhibitor epigallocatechin-3-gallate protects INS-1E beta-cell line against acute dioxin toxicity. Chemosphere 2013; 93:1447-1455. [PMID: 24050715 DOI: 10.1016/j.chemosphere.2013.06.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Revised: 05/27/2013] [Accepted: 06/02/2013] [Indexed: 06/02/2023]
Abstract
The aim of this research was to investigate the mechanism(s) underlying the acute toxicity of dioxin in pancreatic beta cells and to evaluate the protective effects of epigallocatechin-3-gallate (EGCG), the most abundant of the green tea's catechins and a powerful inhibitor of the aryl hydrocarbon receptor (AhR). Using the insulin-secreting INS-1E cell line we have explored the effect of 1h exposure to different concentrations of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), alone or in the presence of EGCG, on: (a) cell survival; (b) cellular ultrastructure; (c) intracellular calcium levels; (d) mitochondrial membrane potential; (e) glucose-stimulated insulin secretion and (f) activation of MAP kinases. Our results demonstrate that TCDD is highly toxic for INS-1E cells, suggesting that pancreatic beta cells should be considered a relevant and sensitive target for dioxin acute toxicity. EGCG significantly protects INS-1E cells against TCDD-induced toxicity in terms of both cell survival and preservation of cellular ultrastructure. The mechanism of this protective effect seems to be related to: (a) the ability of EGCG to preserve the mitochondrial function and thus to prevent the TCDD-induced inhibition of glucose-stimulated insulin secretion and (b) the ability of EGCG to inhibit the TCDD-induced activation of selected kinases, such as e.g. ERK 1/2 and JNK. Our results clearly show that EGCG is able to protect pancreatic beta cells against dioxin acute toxicity and indicate the mitochondrion as the most likely target for this beneficial effect.
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Affiliation(s)
- L Martino
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, I-56126 Pisa, Italy
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20
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Abbasakoor F, Woodhams J, Farooqui N, Novelli M, Bown S, MacRobert A, Boulos P. Safe ablation of the anal mucosa and perianal skin in rats using Photodynamic Therapy--a promising approach for treating Anal Intraepithelial Neoplasia. Photodiagnosis Photodyn Ther 2013; 10:566-74. [PMID: 24284113 DOI: 10.1016/j.pdpdt.2013.06.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Revised: 06/13/2013] [Accepted: 06/15/2013] [Indexed: 11/29/2022]
Abstract
BACKGROUND Anal Intraepithelial Neoplasia (AIN), a pre-cursor of anal squamous carcinoma, is increasingly detected in individuals with impaired immune function. However, choices for effective, low morbidity treatment are limited. Photodynamic Therapy (PDT) is promising as it is known to ablate more proximal gastrointestinal mucosa with safe healing, without damage to underlying muscle. It can also ablate skin with safe healing and minimal scarring. METHODS Pharmacokinetics: Normal rats were sensitised with 200mg/kg 5-aminolaevulinic acid (ALA) and killed 1-8h later. Anal tissues were examined by fluorescence microscopy to quantify the concentration of PPIX (protoporphyrin IX, the active derivative of ALA) in anal mucosa and in the underlying sphincter. PDT: Normal rats were sensitised similarly 3h later, laser light (635 nm) was delivered. Anal canal: 50-150 J/cm using 1cm diffuser fibre; for peri-anal skin, 50-200 J/cm(2), using microlens fibre. In each group, 2 rats were killed 3, 7, 14 and 28 days later and the anal region removed for histological examination. RESULTS Pharmacokinetics: Peak concentration of PPIX in mucosa was at 3h, peak ratio mucosa: muscle, 6, seen at same time. PDT. Anal canal 50 J/cm: complete mucosal ablation by 3 days, complete regeneration by 28 days. Higher energies caused muscle damage with scarring. Peri-anal skin: 200 J/cm(2); complete ablation of skin, including appendages, complete healing by 28 days. Minimal effect with lower energy. CONCLUSION ALA-PDT can ablate anal mucosa and peri-anal skin with safe healing and no underlying damage. However, over treatment can damage the sphincters. This technique is ready to undergo clinical trials.
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Affiliation(s)
- F Abbasakoor
- Department of Surgery, Division of Surgery and Interventional Science, UCL, London WC1E 6BT, United Kingdom.
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21
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Novelli M, Bombara M, De Tata V, Masiello P, Bergamini E. Effects of age and dietary restriction on protein glycation. Aging Clin Exp Res 2013. [DOI: 10.1007/bf03324379] [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: 11/28/2022]
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22
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Quaglino P, Ponti R, Novelli M, Savoia P, Fava P, Papini M, Bernengo MG. Flow cytometric analyses of circulating regulatory T cells in patients with dermatitis herpetiformis and other immune mediated dermatoses. GIORN ITAL DERMAT V 2013; 148:197-201. [PMID: 23588145] [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: 06/02/2023]
Abstract
Regulatory T cells (Tregs) play a crucial role by maintaining the peripheral tolerance and inhibiting autoimmunity. In recent years, numerous autoimmune and immune-mediated diseases have been shown to present significant number depletion and/or function impairment of this subset. In the present study, we present a brief overview of the results obtained by our group in association with the centers belonging to the Italian Immunopathology Group, as to the expression levels and biological significance of circulating regulatory CD4+CD25+brightFOXP3+ T cells in a variety of immune-mediated skin diseases (such as psoriasis, scleroderma, bullous pemphigoid and GvHD), together with preliminary results achieved in patients with inflammatory bowel disease-related dermatoses. This review shows that this series of different cutaneous diseases characterised by an immune-mediated pathogenesis, share a significant down-regulation of circulating FOXP3+ Treg cells, whilst the treatment and the achievement of clinical response are generally associated with an opposite phenomenon with up-regulation of Treg cells. Future studies are mandatory to identify the effective role of these modifications in the disease pathogenesis as well as its relationship with the clinical response.
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Affiliation(s)
- P Quaglino
- Dermatologic Clinic, Department of Medical Sciences, University of Turin, Italy.
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23
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Antiga E, Quaglino P, Volpi W, Pierini I, Del Bianco E, Bianchi B, Novelli M, Savoia P, Bernengo MG, Fabbri P, Caproni M. Regulatory T cells in skin lesions and blood of patients with bullous pemphigoid. J Eur Acad Dermatol Venereol 2013; 28:222-30. [PMID: 23331964 DOI: 10.1111/jdv.12091] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Accepted: 11/30/2012] [Indexed: 11/30/2022]
Abstract
BACKGROUND Although regulatory T cells (Tregs) are affected in several autoimmune skin diseases, only two studies have been performed in patients with bullous pemphigoid (BP) with contrasting results. OBJECTIVE To characterize Tregs and to determine the serum levels of regulatory cytokines in patients with BP. METHODS In BP lesional skin, immunohistochemistry and confocal microscopy were performed for CD4(+) , CD25(+) , forkhead/winged helix transcription factor (FOXP3)(+) , transforming growth factor (TGF)-β(+) and interleukin (IL)-10(+) cells. In addition, the number of CD4(+) CD25(++) FOXP3(+) Tregs in peripheral blood was assessed by flow cytometry, and the levels of TGF-β and IL-10 were determined in serum samples by enzyme-linked immunosorbent assay before and after steroid therapy. Controls included patients with psoriasis, atopic dermatitis (AD) and healthy donors. RESULTS The frequency of FOXP3(+) cells was significantly reduced in skin lesions from patients with BP (P < 0.001) compared with psoriasis and AD. Moreover, the number of IL-10(+) cells was lower in BP than in psoriasis (P < 0.001) and AD (P = 0.002), while no differences were observed in the number of TGF-β(+) cells. CD4(+) CD25(++) FOXP3(+) Treg in the peripheral blood of patients with BP was significantly reduced compared with healthy controls (P < 0.001), and augmented significantly after steroid therapy (P = 0.001). Finally, TGF-β and IL-10 serum levels were similar in patients with BP compared with healthy controls. However, after therapy, BP patients showed significantly higher IL-10 serum levels than before therapy (P = 0.01). CONCLUSIONS These data suggest that the depletion of Tregs and of IL-10 in patients with BP may be an important factor in the pathogenesis of the disease.
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Affiliation(s)
- E Antiga
- Department of Critical Care, Section of Dermatology, University of Florence, Florence, Italy
| | - P Quaglino
- Department of Medical Sciences, 1 st Dermatologic Clinic, University of Turin, Turin, Italy
| | - W Volpi
- Department of Critical Care, Section of Dermatology, University of Florence, Florence, Italy
| | - I Pierini
- Department of Critical Care, Section of Dermatology, University of Florence, Florence, Italy
| | - E Del Bianco
- Department of Critical Care, Section of Dermatology, University of Florence, Florence, Italy
| | - B Bianchi
- Department of Critical Care, Section of Dermatology, University of Florence, Florence, Italy
| | - M Novelli
- Department of Medical Sciences, 1 st Dermatologic Clinic, University of Turin, Turin, Italy
| | - P Savoia
- Department of Medical Sciences, 1 st Dermatologic Clinic, University of Turin, Turin, Italy
| | - M G Bernengo
- Department of Medical Sciences, 1 st Dermatologic Clinic, University of Turin, Turin, Italy
| | - P Fabbri
- Department of Critical Care, Section of Dermatology, University of Florence, Florence, Italy
| | - M Caproni
- Department of Critical Care, Section of Dermatology, University of Florence, Florence, Italy
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Sanders DSA, Grabsch H, Harrison R, Bateman A, Going J, Goldin R, Mapstone N, Novelli M, Walker MM, Jankowski J. Comparing virtual with conventional microscopy for the consensus diagnosis of Barrett's neoplasia in the AspECT Barrett's chemoprevention trial pathology audit. Histopathology 2012; 61:795-800. [PMID: 22716297 DOI: 10.1111/j.1365-2559.2012.04288.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
AIMS To compare the diagnostic accuracy of conventional versus virtual microscopy for the diagnosis of Barrett's neoplasia. METHODS AND RESULTS Sixty-one biopsies from 35 ASPirin Esomeprazole ChemopreventionTrial (AspECT) trial patients were given a Barrett's neoplasia score (1-5) by a panel of five pathologists using conventional microscopy. Thirty-three biopsies positive for neoplasia were digitized and rescored blindly by virtual microscopy. Diagnostic reliability was compared between conventional and virtual microscopy using Fleiss' kappa. There was substantial reliability of diagnostic agreement (κ = 0.712) scoring the 61 biopsies and moderate agreement scoring the subgroup of 33 'positive' biopsies with both conventional microscopy (κ = 0.598) and virtual microscopy (κ = 0.436). Inter-observer diagnostic agreement between two pathologists by virtual microscopy was substantial (κ = 0.76). Comparison of panel consensus neoplasia scores between conventional and virtual microscopy was almost perfect (κ = 0.8769). However, with virtual microscopy there was lowering of the consensus neoplasia score in nine biopsies. CONCLUSIONS Diagnostic agreement with virtual microscopy compares favourably with conventional microscopy in what is recognized to be a challenging area of diagnostic practice. However, this study highlights possible limitations for this method in the primary diagnostic setting.
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Affiliation(s)
- D S A Sanders
- Department of Cellular Pathology, Warwick Hospital, Warwick, UK.
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25
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Quaglino P, Antiga E, Comessatti A, Caproni M, Nardò T, Ponti R, Novelli M, Osella-Abate S, Fabbri P, Bernengo MG. Circulating CD4+ CD25brightFOXP3+ regulatory T-cells are significantly reduced in bullous pemphigoid patients. Arch Dermatol Res 2012; 304:639-45. [DOI: 10.1007/s00403-012-1213-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Revised: 01/09/2012] [Accepted: 01/13/2012] [Indexed: 10/14/2022]
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Savoia P, Osella-Abate S, Deboli T, Marenco F, Stroppiana E, Novelli M, Fierro MT, Bernengo MG. Clinical and prognostic reports from 270 patients with multiple primary melanomas: a 34-year single-institution study. J Eur Acad Dermatol Venereol 2011; 26:882-8. [PMID: 21819449 DOI: 10.1111/j.1468-3083.2011.04181.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
BACKGROUND Development of more than one primary melanoma in a sole patient is frequent, accounting for 1.2-8.2% of melanoma patients in most recent series. OBJECTIVE AND METHODS Clinical, histological and epidemiological characteristics of 270 multiple primary melanomas patients were reviewed. RESULTS Two-hundred and seven patients (76.7%) had two melanomas, whereas in the remaining 63 the number of primary ranged from three to eight; on the whole, 639 multiple primary melanomas were identified. Synchronous melanomas developed more frequently in patients with three or more lesions; median age was significantly lower in the group of patients with more than three melanomas than in the others. Mean Breslow's thickness significantly decreases (P<0.001) from the first (1.77±1.76 mm) to subsequent primaries (0.85±1.25 mm for the second and 0.66±0.48 mm for the third melanoma). Percentage of 'in situ' melanomas was 5.6% as first diagnosis, but increased to 24.8% for the second melanoma; number of nodular melanomas was significantly lower for succeeding diagnosis. AJCC stage at diagnosis showed a statistical prognostic significance, whereas outcome and survival did not depend on the number of primary lesions. Multivariate analysis confirmed the prognostic role of Breslow's thickness, ulceration, gender and patient age, and the better prognosis of patients with multiple melanomas, respect to those with single primary melanoma. CONCLUSIONS Skin examination and long-term follow-up are mandatory for patients affected by melanoma, with the intent to promptly diagnose not only a disease progression but also possible new primary melanomas.
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Affiliation(s)
- P Savoia
- Section of Clinics and Oncological Dermatology, Department of Biomedical Sciences and Human Oncology, University of Turin, Italy.
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Quaglino P, Bergallo M, Ponti R, Barberio E, Cicchelli S, Buffa E, Comessatti A, Costa C, Terlizzi M, Astegiano S, Novelli M, Cavallo R, Bernengo M. Th1, Th2, Th17 and Regulatory T Cell Pattern in Psoriatic Patients: Modulation of Cytokines and Gene Targets Induced by Etanercept Treatment and Correlation with Clinical Response. Dermatology 2011; 223:57-67. [DOI: 10.1159/000330330] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2011] [Accepted: 06/03/2011] [Indexed: 12/22/2022] Open
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Quaglino P, Ortoncelli M, Comessatti A, Ponti R, Novelli M, Bergallo M, Costa C, Cicchelli S, Savoia P, Bernengo MG. Circulating CD4+CD25 bright FOXP3+ T cells are up-regulated by biological therapies and correlate with the clinical response in psoriasis patients. Dermatology 2009; 219:250-8. [PMID: 19752528 DOI: 10.1159/000238305] [Citation(s) in RCA: 34] [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: 02/06/2009] [Accepted: 05/26/2009] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Regulatory T-cell (T(reg)) modulation is one of the potential mechanisms of anti-tumour-necrosis-factor biological agents. However, literature data on psoriasis patients are lacking. OBJECTIVE To analyse the circulating CD4+CD25(bright)FOXP3+ subset in 30 patients with psoriasis vulgaris/arthropathic psoriasis treated with biologicals and to investigate its relationship with the clinical response. METHODS The CD25(bright)FOXP3+ expression within the CD4+ subset was determined by multi-parameter flow cytometry at baseline and during treatment. FOXP3 mRNA expression was analysed by real-time reverse transcription PCR. RESULTS A response was obtained in 16/17 patients (91.1%) with increased CD25(bright)FOXP3+ values and in only 3/11 patients (27.3%) who showed a CD25(bright)FOXP3+ decrease during biological treatment (p = 0.0001). Responders showed significantly higher values than did non-responders as from the first 2 months of treatment (p = 0.0032). A significantly higher posttreatment expression of mRNA FOXP3 was observed in responders compared to non-responders. CONCLUSION Biological drugs induce a circulating T(reg) up-regulation in a significant percentage of patients; such an increase is an early predictive marker of response.
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Affiliation(s)
- P Quaglino
- Department of Medical Sciences and Human Oncology, Dermatology Section, 1st Dermatologic Clinic, Turin University, Turin, Italy.
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Quaglino P, Comessatti A, Ponti R, Peroni A, Mola F, Fierro MT, Savoia P, Novelli M, Bernengo MG. Reciprocal modulation of circulating CD4+CD25+bright T cells induced by extracorporeal photochemotherapy in cutaneous T-cell lymphoma and chronic graft-versus-host-disease patients. Int J Immunopathol Pharmacol 2009; 22:353-62. [PMID: 19505389 DOI: 10.1177/039463200902200212] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The mechanisms of action of extracorporeal photochemotherapy (ECP) in cutaneous T-cell lymphoma (CTCL) are poorly understood. Recently, ECP has been shown to induce an increase in regulatory T cell (Treg) expression and functional activities in Graft-versus-host-disease (GvHD), whereas no data are available in CTCL patients. The aim of this study is to evaluate whether ECP is able to modulate the expression levels of the circulating CD4+CD25+bright subset in CTCL patients and whether these modifications are related to the disease course. The patient population included 43 CTCL and 15 chronic GvHD patients treated by ECP at our institutions since 1992. The expression of the circulating CD4+CD25+bright subset was analysed at baseline and sequentially during treatment by flow-cytometry. Fifty healthy donors were used as controls. The baseline circulating CD4+CD25+bright percentage values in CTCL (median: 4.3 percent) were similar to those of healthy donors, whereas GvHD showed significantly lower values (median: 1.5 percent; p<0.001). During treatment, CTCL patients were characterised by an early decrease (from 4.3 percent to 2.4 percent median after 6 months). The CD4+CD25+bright decrease was associated to the disease course, as it occurred in 91.3 percent of responding but in only 25 percent of PD patients (p=0.0001). On the other hand, a significant increase of CD4+CD25+bright cells was observed in GvHD. ECP induces a reciprocal modulation of the circulating CD4+CD25+bright cells in CTCL and GvHD, with a downregulation in CTCL potentially associated with the response mechanisms.
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Affiliation(s)
- P Quaglino
- Department of Medical Sciences and Human Oncology, Section of Dermato-Oncology, University of Turin, Turin, Italy.
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Vélez A, Gaitan MH, Marquez JR, Castaño A, Restrepo JI, Jaramillo S, Gamarra A, Novelli M, Echeverry MM, Tomlinson I, Carvajal-Carmona LG. Two novel LKB1 mutations in Colombian Peutz-Jeghers syndrome patients. Clin Genet 2009; 75:304-6. [PMID: 19250387 DOI: 10.1111/j.1399-0004.2008.01144.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Ponti R, Bergallo M, Costa C, Quaglino P, Fierro MT, Comessatti A, Stroppiana E, Sidoti F, Merlino C, Novelli M, Alotto D, Cavallo R, Bernengo MG. Human herpesvirus 7 detection by quantitative real time polymerase chain reaction in primary cutaneous T-cell lymphomas and healthy subjects: lack of a pathogenic role. Br J Dermatol 2008; 159:1131-7. [PMID: 18782321 DOI: 10.1111/j.1365-2133.2008.08811.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Primary cutaneous T-cell lymphomas (CTCLs) are a heterogeneous group of lymphomas where the tumour population emerges within a multiple subclone pattern. Mycosis fungoides (MF) and Sézary syndrome (SS) are characterized by the expansion of clonal CD4+/CD45RO+ memory T cells. Lymphomatoid papulosis (LyP) is a chronic, lymphoproliferative disorder included in the CD30+ primary CTCL spectrum. Several studies have suggested a role of viral infection for super-antigenic activation of T lymphocytes; however, evidence of their association with CTCLs is still lacking. Human herpesvirus (HHV) 7 is a CD4+ T-lymphotropic herpesvirus; its restricted cellular tropism and the ability to induce cytokine production in infected cells could make it an important pathogenic cofactor in lymphoproliferative disorders. OBJECTIVES To investigate the presence of HHV7 DNA on CTCL and healthy skin donors (HD). METHODS We used quantitative real time polymerase chain reaction to evaluate the potential pathogenic role of HHV7. RESULTS Twenty-seven of 84 (32.1%) HD were positive for HHV7 DNA. Twenty-one of 148 (14.2%) patients with CTCLs were positive for HHV7 DNA: nine of 39 (23.1%) SS, six of 14 (42.9%) CD30+ CTCLs and six of 24 (25.0%) LyP, and HHV7 DNA was negative in all 71 patients with MF. CONCLUSIONS These results seem to exclude a pathogenic role of HHV7 in CTCLs, suggesting the possibility of skin as a latency site.
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Affiliation(s)
- R Ponti
- Dermatology Section, Department of Biomedical Science and Human Oncology, Turin University, Via Cherasco 23, 10126, Italy
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Preston SL, Leedham SJ, Oukrif D, Deheregoda M, Goodlad RA, Poulsom R, Alison MR, Wright NA, Novelli M. The development of duodenal microadenomas in FAP patients: the human correlate of the Min mouse. J Pathol 2008; 214:294-301. [PMID: 18085615 DOI: 10.1002/path.2294] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
UNLABELLED The morphological changes associated with the adenoma-carcinoma sequence are well documented in the colorectum. Small intestinal carcinogenesis is thought to progress through a similar adenoma-to-carcinoma pathway, but there is a relative dearth of studies examining the associated morphological changes. The best-known mouse model of intestinal neoplasia, the multiple intestinal neoplasia (Min) mouse, has been criticized as a genetic model of intestinal neoplasia, as the majority of its tumours occur in the small intestine. We examined pancreatico-duodenal resection specimens from seven familial adenomatous polyposis (FAP) patients. Serial sections of these were stained with haematoxylin and eosin for beta-catenin and its downstream target CD44, for BMPR1a, lysozyme, carbonic anhydrase II, and with MIB-1. Individual dysplastic crypts were isolated and mutations in the FAP (APC) gene compared between the top and bottom of the crypt. We found that: (a) duodenal microadenomas are extremely common in FAP patients; (b) these grow in the core of duodenal villi, forming lesions similar to those described in the Min mouse; (c) many lesions arise as monocryptal adenomas and grow by a process of crypt fission and branching; (d) migrating adenomatous cells lose their dysplastic phenotype as they migrate up the crypt villous axis; and (e) Paneth cells lose positional information. IN CONCLUSION (a) the morphological similarity of adenomas in the Min mouse and human suggest the Min mouse is a good model of FAP; (b) duodenal adenomas in FAP originate in monocryptal adenomas and follow the 'bottom-up' rather than the 'top-down' model of morphogenesis; (c) early microadenomas show evidence of cellular differentiation; (d) defects in the positioning of Paneth cells suggests disruption of the EphB2:EphB3 receptor system.
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Affiliation(s)
- S L Preston
- Histopathology Unit, London Research Institute, Cancer Research UK, London, UK
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Fierro M, Novelli M, Quaglino P, Comessatti A, Fava P, Ortoncelli M, Ponti R, Bernengo M. Heterogeneity of Circulating CD4+ Memory T-Cell Subsets in Erythrodermic Patients: CD27 Analysis Can Help to Distinguish Cutaneous T-Cell Lymphomas from Inflammatory Erythroderma. Dermatology 2008; 216:213-21. [DOI: 10.1159/000112928] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2007] [Accepted: 08/14/2007] [Indexed: 12/20/2022] Open
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Sidoti F, Bergallo M, Costa C, Ponti R, Terlizzi M, Astegiano S, Merlino C, Novelli M, Cavallo R. DEVELOPMENT OF A LUX-REAL TIME PCR FOR HUMAN HERPESVIRUS 7 (HHV7) IN PRIMARY CUTANEOUS T CELL LYMPHOMAS. Microbiol Med 2007. [DOI: 10.4081/mm.2007.2856] [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: 11/23/2022] Open
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Lupi R, Del Guerra S, Mancarella R, Novelli M, Valgimigli L, Pedulli GF, Paolini M, Soleti A, Filipponi F, Mosca F, Boggi U, Del Prato S, Masiello P, Marchetti P. Insulin secretion defects of human type 2 diabetic islets are corrected in vitro by a new reactive oxygen species scavenger. Diabetes Metab 2007; 33:340-5. [PMID: 17616474 DOI: 10.1016/j.diabet.2007.03.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2006] [Accepted: 03/25/2007] [Indexed: 01/09/2023]
Abstract
Oxidative stress is a putative mechanism leading to beta-cell damage in type 2 diabetes. We studied isolated human pancreatic islets from type 2 diabetic and non-diabetic subjects, matched for age and body mass index. Evidence of increased oxidative stress in diabetic islets was demonstrated by measuring nitrotyrosine concentration and by electron paramagnetic resonance. This was accompanied by reduced glucose-stimulated insulin secretion, as compared to non-diabetic islets (Stimulation Index, SI: 0.9 +/- 0.2 vs. 2.0 +/- 0.4, P<0.01), and by altered expression of insulin (approximately -60%), catalase (approximately +90%) and glutathione peroxidase (approximately +140%). When type 2 diabetic islets were pre-exposed for 24 h to the new antioxidant bis(1-hydroxy-2,2,6,6-tetramethyl-4-piperidinyl)decandioate di-hydrochloride, nitrotyrosine levels, glucose-stimulated insulin secretion (SI: 1.6+/-0.5) and gene expressions improved/normalized. These results support the concept that oxidative stress may play a role in type 2 diabetes beta-cell dysfunction; furthermore, it is proposed that therapy with antioxidants could be an interesting adjunctive pharmacological approach to the treatment of type 2 diabetes.
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Affiliation(s)
- R Lupi
- Dipartimento di Endocrinologia e Metabolismo, University of Pisa, Italy
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Amin Z, Theis B, Russell R, House C, Novelli M, Lees W. Diagnostic pancreatic cancer: the role of percutaneous biopsy and CT. Clin Imaging 2007. [DOI: 10.1016/j.clinimag.2007.02.014] [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: 10/23/2022]
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Amin Z, Theis B, Russell RCG, House C, Novelli M, Lees WR. Diagnosing pancreatic cancer: the role of percutaneous biopsy and CT. Clin Radiol 2007; 61:996-1002. [PMID: 17097419 DOI: 10.1016/j.crad.2006.07.005] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2006] [Revised: 06/29/2006] [Accepted: 07/07/2006] [Indexed: 01/12/2023]
Abstract
AIMS To determine the sensitivity and complications of percutaneous biopsy of pancreatic masses, and whether typical computed tomography (CT) features of adenocarcinoma can reliably predict this diagnosis. MATERIALS AND METHODS A 5 year retrospective analysis of percutaneous core biopsies of pancreatic masses and their CT features was undertaken. Data were retrieved from surgical/pathology databases; medical records and CT reports and images. RESULTS Three hundred and three patients underwent 372 biopsies; 56 of 87 patients had repeat biopsies. Malignancy was diagnosed in 276 patients, with ductal adenocarcinoma in 259 (85%). Final sensitivity of percutaneous biopsy for diagnosing pancreatic neoplasms was 90%; for repeat biopsy it was 87%. Complications occurred in 17 (4.6%) patients, in three of whom the complications were major (1%): one abscess, one duodenal perforation, one large retroperitoneal bleed. CT features typical of ductal adenocarcinoma were: hypovascular pancreatic mass with bile and/or pancreatic duct dilatation. Atypical CT features were: isodense or hypervascular mass, calcification, non-dilated ducts, cystic change, and extensive lymphadenopathy. Defining typical CT features of adenocarcinoma as true-positives, CT had a sensitivity of 68%, specificity of 95%, positive predictive value (PPV) of 98%, and negative predictive value of 41% for diagnosing pancreatic adenocarcinoma. CONCLUSION Final sensitivity of percutaneous biopsy for establishing the diagnosis was 90%. CT features typical of pancreatic adenocarcinoma had high specificity and PPV. On some occasions, especially in frail patients with co-morbidity, it might be reasonable to assume a diagnosis of pancreatic cancer if CT features are typical, and biopsy only if CT shows atypical features.
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Affiliation(s)
- Z Amin
- Department of Imaging, University College Hospital, London, UK.
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Marks DJB, Rahman FZ, Novelli M, Yu RC, McCartney S, Bloom S, Segal AW. An exuberant inflammatory response to E coli: implications for the pathogenesis of ulcerative colitis and pyoderma gangrenosum. Gut 2006; 55:1662-3. [PMID: 17047113 PMCID: PMC1860126 DOI: 10.1136/gut.2006.104943] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Bergallo M, Costa C, Novelli M, Ponti R, Fierro M, Margio S, Bernengo M, Merlino C, Cavallo R. VIRUS DI EPSTEIN-BARR E LINFOMI PRIMITIVI CUTANEI: VALUTAZIONE DELLA CARICA VIRALE MEDIANTE PCR QUANTITATIVA-COMPETITIVA (QC-PCR) SU BIOPSIA. Microbiol Med 2006. [DOI: 10.4081/mm.2006.3205] [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: 11/23/2022] Open
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Loewy RM, Carvajal LG, Novelli M, Pechen de D'Angelo AM. Azinphos methyl residues in shallow groundwater from the fruit production region of northern Patagonia, Argentina. J Environ Sci Health B 2006; 41:869-81. [PMID: 16893776 DOI: 10.1080/03601230600805956] [Citation(s) in RCA: 8] [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] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Groundwater samples were collected from monitoring wells along an area of intensive fruit production. Different types of correlations were investigated between soil physicochemical characteristics, depths and agricultural practices with pesticide detection frequency. In the three analyzed periods azinphos methyl, S-(3,4-diydro-4-oxobenzo[d]-[1,2,3]-triazin-3-ylmethyl)-O,O-dimethyl phosphorodithioate, showed a definite seasonal behavior related to the application pattern, increasing its concentration in the aquifer from October to November-December and then decreasing towards March. Samples obtained during the non-spraying season showed that azinphos methyl residues were lower than detection limit (LOD). An inverse correlation was observed between azinphos methyl concentration and the time elapsed since the last pesticide application. Seasonal events such as rain and irrigation influence the chemical concentration in the well, while no correlation was obtained between soil characteristics and azinphos methyl concentration. The soil attenuation capacity was not enough to prevent the presence of azinphos methyl in the aquifer during the application season.
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Affiliation(s)
- R M Loewy
- LIBIQUIMA, Facultad de Ingeniería Universidad Nacional del Comahue Neuquen, Argentina.
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Ponti R, Quaglino P, Novelli M, Fierro MT, Comessatti A, Peroni A, Bonello L, Bernengo MG. T-cell receptor γ gene rearrangement by multiplex polymerase chain reaction/heteroduplex analysis in patients with cutaneous T-cell lymphoma (mycosis fungoides/Sézary syndrome) and benign inflammatory disease: correlation with clinical, histological and i. Br J Dermatol 2005; 153:565-73. [PMID: 16120144 DOI: 10.1111/j.1365-2133.2005.06649.x] [Citation(s) in RCA: 80] [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: 11/28/2022]
Abstract
BACKGROUND A dominant T-cell clone can be detected by polymerase chain reaction (PCR) in 40-90% of cutaneous samples from patients with cutaneous T-cell lymphoma (CTCL). MATERIALS AND METHODS From 1996 to 2003 we analysed 547 cutaneous biopsies performed to exclude CTCL (mycosis fungoides, MF/Sézary syndrome, SS). The final diagnosis was benign inflammatory disease (BID) in 353 samples (64.5%) and CTCL in 194 (35.5%). T-cell receptor (TCR)-gamma gene rearrangement was studied by using a multiplex PCR/heteroduplex (HD) analysis. The PCR results were correlated with the clinical picture, the histological pattern and the presence of T-cell lineage antigen loss, using univariate and multivariate logistic regression analyses. OBJECTIVE To determine the sensitivity and specificity of the multiplex PCR/HD analysis and to identify which are the clinical, histopathological or immunophenotypical features significantly associated with a positive T-cell clonality. RESULTS A clonality was demonstrated in 83.5% of CTCL and in 2.3% of BID (P < 0.001). A significantly higher percentage of clonal cases was associated with the cutaneous T-score (71.4% in T1, 76.1% in T2 and 100% in nodular and erythrodermic MF samples) and with the presence of a T-cell lineage antigen loss (93.9% vs. 77.4%). Moreover, clonality was closely related to an increase in the histopathological score (51.3% in the samples with a score < 5, compared with 92% in the lesions with > or = 5). No significant difference in the percentage of clonal cases was found between T1/T2 and T3/T4 lesions with a histopathological score > or = 5. The multivariate logistic regression showed that the density and extent of the cell infiltrate, the degree of epidermotropism and the presence of cytological atypia share an independent predictive value for clonality in T1/T2 samples, even if the highest odds ratios (3.6) were associated with the density of the cell infiltrate. The disease course of T1/T2 patients was analysed according to the PCR findings. All the PCR-negative patients showed a long-standing stable disease course; on the other hand, a disease progression occurred in 12/87 (13.8%) positive patients. CONCLUSIONS The multiplex PCR/HD analysis is associated with a high diagnostic accuracy (92.7%) in CTCL patients. The finding of a clonal T-cell rearrangement is more closely associated with the histological pattern (in particular with the density and extent of the cell infiltrate) rather than with the MF cutaneous T-score or immunophenotype.
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Affiliation(s)
- R Ponti
- Section of Dermatology, Department of Biomedical Sciences and Human Oncology, University of Turin, Via Cherasco 23, 10126, Torino, Italy
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Novelli M, Pocai A, Lajoix AD, Beffy P, Bezzi D, Marchetti P, Gross R, Masiello P. Alteration of beta-cell constitutive NO synthase activity is involved in the abnormal insulin response to arginine in a new rat model of type 2 diabetes. Mol Cell Endocrinol 2004; 219:77-82. [PMID: 15149729 DOI: 10.1016/j.mce.2004.01.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2003] [Accepted: 01/20/2004] [Indexed: 11/26/2022]
Abstract
We have previously obtained a new type 2 diabetic syndrome in adult rats given streptozotocin and nicotinamide, characterized by reduced beta-cell mass, partially preserved insulin response to glucose and tolbutamide and excessive responsiveness to arginine. We have also established that the neuronal isoform of constitutive NO synthase (nNOS) is expressed in beta-cells and modulates insulin secretion. In this study, we explored the kinetics of glucose- and arginine-stimulated insulin release in perifused isolated islets as well as the effect of N-omega-nitro-L-arginine methyl ester (L-NAME), a NOS inhibitor, to get insight into the possible mechanisms responsible for the arginine hypersensitivity observed in vitro in this and other models of type 2 diabetes. A reduced first phase and a blunted second phase of insulin secretion were observed upon glucose stimulation of diabetic islets, confirming previous data in the isolated perfused rat pancreas. Exposure of diabetic islets to 10 mM arginine, in the presence of 2.8 mM glucose, elicited a remarkable monophasic increment in insulin release, which peaked at 639 +/- 31 pg/islet/min as compared to 49 +/- 18 pg/islet/min in control islets (P << 0.01). The addition of L-NAME to control islets markedly enhanced the insulin response to arginine, as expected from the documented inhibitory effect exerted by nNOS activity in normal beta-cells, whereas it did not further modify the insulin secretion in diabetic islets, thus implying the occurrence of a defective nNOS activity in these islets. A reduced expression of nNOS mRNA was found in the majority but not in all diabetic islet preparations and therefore cannot totally account for the absence of L-NAME effect, that might also be ascribed to post-transcriptional mechanisms impairing nNOS catalytic activity. In conclusion, our results provide for the first time evidence that functional abnormalities of type 2 experimental diabetes, such as the insulin hyper-responsiveness to arginine, could be due to an impairment of nNOS expression and/or activity in beta-cells.
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Affiliation(s)
- M Novelli
- Dipartimento di Patologia Sperimentale, B.M.I.E., University of Pisa, Via Roma, 55 Scuola Medica, I-56126 Pisa, Italy
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Novelli M, De Tata V, Masiello P. Calorie restriction counteracts the impairment of adipocyte insulin-stimulated lipogenesis in aging rats, but not that induced by dexamethasone treatment. Biogerontology 2004; 5:11-6. [PMID: 15138377 DOI: 10.1023/b:bgen.0000017683.77988.8e] [Citation(s) in RCA: 3] [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: 11/12/2022]
Abstract
In order to detect metabolic derangements that could be implicated in the pathogenesis of age-related insulin resistance, insulin-stimulated lipogenesis was investigated in isolated adipocytes from 24-month-old Sprague-Dawley rats, and the protective influence of caloric restriction was assessed. For comparison, the effects of glucocorticoid administration, used as a pharmacological tool to alter insulin sensitivity, were also studied. Caloric restriction consisted in a 40% reduction of the daily food intake of controls starting at 3 months of age. Dexamethasone (0.13 mg/kg/day) was administered for 14 days prior to sacrifice to both ad libitum-fed and dietary-restricted aging rats. Three-month-old animals, treated or untreated with dexamethasone, served as young controls. The results showed a significant age-related decrease of insulin-stimulated lipogenesis, which was fully prevented by a lifelong regimen of dietary restriction. Dexamethasone treatment markedly reduced insulin-stimulated lipogenesis in adipocytes isolated from all groups of rats, including those submitted to calorie restriction. In conclusion, our data indicate that the mechanism by which aging alters adipose tissue insulin-induced lipogenesis is reversed by dietary intervention and appears to be different from that triggered by dexamethasone. This particular defect might contribute to an imbalance of fat distribution among tissues that could induce or aggravate peripheral insulin resistance in old age.
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Affiliation(s)
- M Novelli
- Dipartimento di Patologia Sperimentale, Biotecnologie Mediche, Infettivologia e Epidemiologia, University of Pisa, Pisa, Italy
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Montalvo P, Paz L, Chiappa E, Aronne S, Novelli M, Biaiñ ME. [Intestinal pseudo-obstruction due to sporadic visceral myopathy]. Medicina (B Aires) 2004; 64:525-8. [PMID: 15637831] [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: 05/01/2023] Open
Abstract
We report an unusual case of a patient with sporadic visceral myopathy and involvement of the entire gastrointestinal and urinary tract. Visceral myopathy is a form of chronic idiophatic intestinal pseudo-obstruction characterized by vacuolar degeneration, atrophy and fibrosis of the intestinal propia muscle layer without inflammatory cells. It can be found in childhood and adolescence affecting the gastrointestinal and urinary visceral muscle. The familial occurrence can be found in about 30% of cases and the mode of transmission is autosomal recessive in most families. It is crucial to exclude secondary forms of chronic intestinal pseudo-obstruction and to obtain full thickness intestinal biopsy for the diagnosis. Surgical treatment is only beneficial in cases with isolated segmental involvement of the gastrointestinal tract.
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Affiliation(s)
- Pedro Montalvo
- Servicio de Clínica Médica, Hospital Zonal General de Agudos San Roque, Gonnet, La Plata, Argentina.
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Francis DL, Freeman A, Visvikis D, Costa DC, Luthra SK, Novelli M, Taylor I, Ell PJ. In vivo imaging of cellular proliferation in colorectal cancer using positron emission tomography. Gut 2003; 52:1602-6. [PMID: 14570730 PMCID: PMC1773856 DOI: 10.1136/gut.52.11.1602] [Citation(s) in RCA: 103] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND and aims: Positron emission tomography (PET) using (18)F labelled 2-fluoro-2-deoxy-D-glucose ((18)FDG) is an established imaging tool, although the recent development of a biologically stable thymidine analogue [18F] 3'-deoxy-3-fluorothymidine ((18)FLT) has allowed PET to image cellular proliferation by utilising the salvage pathway of DNA synthesis. In this study, we have compared uptake of (18)FLT and (18)FDG with MIB-1 immunohistochemistry to evaluate the role of PET in quantifying in vivo cellular proliferation in colorectal cancer (CRC). PATIENTS AND METHODS Patients with resectable, primary, or recurrent CRC were prospectively studied. Thirteen lesions from 10 patients (five males, five females), median age 68 years (range 54-87), were evaluated. Patients underwent (18)FDG and (18)FLT PET scanning. Tracer uptake within lesions was quantified using standardised uptake values (SUVs). Histopathological examination and MIB-1 immunohistochemistry were performed on all lesions, and proliferation quantified by calculating a labelling index (% of MIB-1 positively stained nuclei within 1500 tumour cells). RESULTS Histology confirmed adenocarcinoma in 12 of 13 lesions; the remaining lesion was reactive. All eight extrahepatic lesions were visualised using both (18)FLT and (18)FDG. Three of the five resected liver metastases were also avid for (18)FLT and showed high proliferation, while the remaining two lesions which demonstrated no uptake of (18)FLT had correspondingly very low proliferation. There was a statistically significant positive correlation (r =0.8, p<0.01) between SUVs of the tumours visualised with (18)FLT and the corresponding MIB-1 labelling indices. No such correlation was demonstrated with (18)FDG avid lesions (r =0.4). CONCLUSIONS (18)FLT PET correlates with cellular proliferation markers in both primary and metastatic CRC. This technique could provide a mechanism for in vivo grading of malignancy and early prediction of response to adjuvant chemotherapy.
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Affiliation(s)
- D L Francis
- Institute of Nuclear Medicine, University College Medical School, Middlesex Hospital, London, UK.
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Loewy RM, Carvajal LG, Novelli M, de D'Angelo AMP. Effect of pesticide use in fruit production orchards on shallow ground water. J Environ Sci Health B 2003; 38:317-325. [PMID: 12716049 DOI: 10.1081/pfc-120019898] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
As a part of landscape-scale study, ground water samples were collected from 30 wells located in fruit production farms belonging to the valley of Neuquen river during the period 1995-1998 and analyzed for organophosphate pesticides. As a consequence of the leaching process, ground water from the Valley of Neuquen River frequently contained concentrations of organophosphorus pesticides that exceeded acute toxicity risk ratios established to protect aquatic life. It was found that some pesticides, as azinphos methyl, had a high detection frequency, 66% of the samples, with concentrations varying from no detection to 48.9 ppb. Dimethoate, metidathion and phosmet were also detected with frequencies of 14.1, 13.6 and 10.8% and with concentration ranks from no detection to a maximum value of 10.9, 2.0 and 15.5 ppb, respectively. Seasonal variations and temporal trends were found for these compounds in ground water.
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Affiliation(s)
- R M Loewy
- LIBIQUIMA, Facultad de Ingeniería, Universidad Nacional del Comahue, Buenos Aires, Neuquen, Argentina.
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Masiello P, Novelli M, Bombara M, Fierabracci V, Vittorini S, Prentki M, Bergamini E. The antilipolytic agent 3,5-dimethylpyrazole inhibits insulin release in response to both nutrient secretagogues and cyclic adenosine monophosphate agonists in isolated rat islets. Metabolism 2002; 51:110-4. [PMID: 11782881 DOI: 10.1053/meta.2002.28969] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
This study intended to test the hypothesis that intracellular lipolysis in the pancreatic beta cells is implicated in the regulation of insulin secretion stimulated by nutrient secretagogues or cyclic adenosine monophosphate (cAMP) agonists. Indeed, although lipid signaling molecules were repeatedly reported to influence beta-cell function, the contribution of intracellular triglycerides to the generation of these molecules has remained elusive. Thus, we have studied insulin secretion of isolated rat pancreatic islets in response to various secretagogues in the presence or absence of 3,5-dimethylpyrazole (DMP), a water-soluble and highly effective antilipolytic agent, as previously shown in vivo. In vitro exposure of islets to DMP resulted in an inhibition (by approximately 50%) of the insulin release stimulated not only by high glucose, but also by another nutrient secretagogue, 2-ketoisocaproate, as well as the cAMP agonists 3-isobutyl-1-methylxanthine and glucagon. The inhibitory effect of DMP, which was not due to alteration of islet glucose oxidation, could be reversed upon addition of sn-1,2-dioctanoylglycerol, a synthetic diglyceride, which activates protein kinase C. The results provide direct pharmacologic evidence supporting the concept that endogenous beta-cell lipolysis plays an important role in the generation of lipid signaling molecules involved in the control of insulin secretion in response to both fuel stimuli and cAMP agonists.
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Affiliation(s)
- P Masiello
- Dipartimento di Patologia Sperimentale, University of Pisa, Pisa, Italy
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Barbera M, Fierabracci V, Novelli M, Bombara M, Masiello P, Bergamini E, De Tata V. Dexamethasone-induced insulin resistance and pancreatic adaptive response in aging rats are not modified by oral vanadyl sulfate treatment. Eur J Endocrinol 2001; 145:799-806. [PMID: 11720907 DOI: 10.1530/eje.0.1450799] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE To explore the adaptive response of the endocrine pancreas in vivo and in vitro and the possible beneficial effect of the insulino-mimetic agent vanadyl sulfate (VOSO(4)), using glucocorticoid treatment to increase insulin resistance, in aging rats. DESIGN AND METHODS Dexamethasone (Dex) (0.13 mg/kg b.w.) was administered daily for 13 days to 3- and 18-month old Sprague-Dawley rats and oral VOSO(4) was given from the 5th day. Plasma glucose, insulin and free fatty acids (FFA) concentrations were measured during these treatments and the insulin secretory response of the isolated perfused pancreas was assessed at the end of the experiment. RESULTS AND CONCLUSIONS In both young and aging rats, particularly in the latter, hyperinsulinemia and increased in vitro insulin responsiveness to glucose were observed in response to Dex treatment, concomitant with an increase in plasma FFA concentrations. Thus, in glucocorticoid-treated animals, the beta-cell adaptive response occurred in both age groups and could possibly be mediated by increased circulating FFA; however, it was insufficient to prevent hyperglycemia in 60% of aging animals. Oral VOSO(4) administration failed to correct Dex-induced alterations in glucose and lipid metabolism, although it influenced in vitro beta-cell responsiveness to stimuli in aging rats.
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Affiliation(s)
- M Barbera
- Dipartimento di Patologia Sperimentale, Biotecnologie Mediche, Infettivologia e Epidemiologia, Universita degli Studi di Pisa, I-56126 Pisa, Italy
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Quaglino P, Osella-Abate S, Novelli M, Lisa F, Comessatti A, Bernengo MG. Peripheral blood involvement in a mycosis fungoides patient with limited skin lesions: phenotypical features and homing molecule pattern. Eur J Dermatol 2001; 11:560-3. [PMID: 11701409] [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: 02/22/2023]
Abstract
Peripheral blood involvement in mycosis fungoides (MF) patients is more frequent in the advanced stages and is associated with a worse prognosis. We report a MF patient with limited patch lesions on her shoulders, upper chest and thighs (T2N0M0) and peripheral blood involvement. Clonality in the peripheral blood was demonstrated by the PCR assay and confirmed by the expansion of the same restricted variable region of the TCR beta-chain (vbeta17) expressed in the cutaneous infiltrate. The patient was treated with fludarabine achieving a complete hematological response followed by an early relapse, whilst the cutaneous lesions remained unchanged. The soluble interleukin-2 receptor levels showed a decrease from baseline levels down to normal values at hematological remission, followed by a further increase. The low sLex/CLA expression in the cutaneous lymphoid infiltrate could have given rise to a higher recruitment in the peripheral blood.
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Affiliation(s)
- P Quaglino
- Department of Medical and Surgical Specialties, Section of Dermatology, 1st Dermatologic Clinic, University of Turin, via Cherasco 23, 10126 Turin, Italy
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