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De Palma FDE, Del Monaco V, Pol JG, Kremer M, D’Argenio V, Stoll G, Montanaro D, Uszczyńska-Ratajczak B, Klein CC, Vlasova A, Botti G, D’Aiuto M, Baldi A, Guigó R, Kroemer G, Maiuri MC, Salvatore F. The abundance of the long intergenic non-coding RNA 01087 differentiates between luminal and triple-negative breast cancers and predicts patient outcome. Pharmacol Res 2020; 161:105249. [DOI: 10.1016/j.phrs.2020.105249] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/08/2020] [Accepted: 10/08/2020] [Indexed: 02/07/2023]
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2
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Allegri L, Baldan F, Vallone C, Tulissi P, Gropuzzo M, Canelles MF, Righi E, Adani GL, Baccarani U, Montanaro D, Risaliti A, Damante G, Baraldo M. Tacrolimus Therapeutic Drug Monitoring in Stable Kidney Transplantation and Individuation of CYP3A5 Genotype. Transplant Proc 2020; 51:2917-2920. [PMID: 31711577 DOI: 10.1016/j.transproceed.2019.04.090] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Accepted: 04/03/2019] [Indexed: 01/12/2023]
Abstract
The posology of tacrolimus (TAC) is usually guided by its therapeutic drug monitoring. Some patients reach target concentrations (CTs) quickly, others more slowly. In a retrospective study, 20 kidney transplant recipients were included (mean age, 50.7 ± 14.1 years; weight 64.0 ± 14.2 kg; patients clinically stable for over a year). We studied cytochrome CYP3A5 genotype, in particular CYP3A5 6986A>G, the most important polymorphism related to the metabolism of TAC (wild genotype CYP3A5 *1 genotype, and CYP3A5 *3 variants). One year after transplantation, the CTs were 5.0 to 8.0 ng/mL. The patients were divided into group A (TAC doses < 6.0 mg/d) and group B (TAC doses > 6.0 mg/d). All were tested for the CYP3A5 gene sequence to characterize their polymorphism. Patients with CYP3A5 *1/*1 and *1/*3 were extensive metabolizers, and those with CYP3A5 *3/*3 were poor metabolizers. In group A and group B, the average TAC doses at the time of therapeutic drug monitoring were 3.0 ± 1.4 ng/mL (0.05 ± 0.03 mg/kg) and 12.8 ± 3.7 ng/mL (0.2 ± 0.1 mg/kg), respectively (P < .001). Group A was the poor metabolizers genotype, while in group B, the extensive metabolizers genotype was present. Patients with the CYP3A5 *1/*1 or *1/*3 genotype required 1.5 to 2 times higher doses than patients *3/*3 to reach CT. This genetic test allows clinicians to know, before the kidney transplant, the patient's TAC metabolism pattern and then to optimize the drug exposure.
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Affiliation(s)
- L Allegri
- Department of Medicine, University of Udine, Udine, Italy
| | - F Baldan
- Department of Medicine, University of Udine, Udine, Italy
| | - C Vallone
- SOC Nephrology, Dialysis and Kidney Transplantation, Integrated Healthcare Hospital of Udine, Udine, Italy
| | - P Tulissi
- SOC Nephrology, Dialysis and Kidney Transplantation, Integrated Healthcare Hospital of Udine, Udine, Italy
| | - M Gropuzzo
- SOC Nephrology, Dialysis and Kidney Transplantation, Integrated Healthcare Hospital of Udine, Udine, Italy
| | - M F Canelles
- Dialysis Center Decentralized Assistance (CAD), Cividale Hospital, Cividale, Italy
| | - E Righi
- Department of Medicine, University of Udine, Udine, Italy; Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - G L Adani
- Surgical Clinic, Integrated Healthcare Hospital of Udine, Udine, Italy
| | - U Baccarani
- Department of Medicine, University of Udine, Udine, Italy; Surgical Clinic, Integrated Healthcare Hospital of Udine, Udine, Italy
| | - D Montanaro
- SOC Nephrology, Dialysis and Kidney Transplantation, Integrated Healthcare Hospital of Udine, Udine, Italy
| | - A Risaliti
- Department of Medicine, University of Udine, Udine, Italy; Surgical Clinic, Integrated Healthcare Hospital of Udine, Udine, Italy
| | - G Damante
- Department of Medicine, University of Udine, Udine, Italy; SOC Institute of Medical Genetics, Department of Medicine, University of Udine, Udine, Italy
| | - M Baraldo
- Department of Medicine, University of Udine, Udine, Italy; SOC Clinical Pharmacology Institute, Integrated Healthcare Hospital of Udine, Udine, Italy.
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3
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Ferrucci V, de Antonellis P, Pennino FP, Asadzadeh F, Virgilio A, Montanaro D, Galeone A, Boffa I, Pisano I, Scognamiglio I, Navas L, Diana D, Pedone E, Gargiulo S, Gramanzini M, Brunetti A, Danielson L, Carotenuto M, Liguori L, Verrico A, Quaglietta L, Errico ME, Del Monaco V, D'Argenio V, Tirone F, Mastronuzzi A, Donofrio V, Giangaspero F, Picard D, Remke M, Garzia L, Daniels C, Delattre O, Swartling FJ, Weiss WA, Salvatore F, Fattorusso R, Chesler L, Taylor MD, Cinalli G, Zollo M. Metastatic group 3 medulloblastoma is driven by PRUNE1 targeting NME1-TGF-β-OTX2-SNAIL via PTEN inhibition. Brain 2019; 141:1300-1319. [PMID: 29490009 DOI: 10.1093/brain/awy039] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 01/16/2018] [Indexed: 01/23/2023] Open
Abstract
Genetic modifications during development of paediatric groups 3 and 4 medulloblastoma are responsible for their highly metastatic properties and poor patient survival rates. PRUNE1 is highly expressed in metastatic medulloblastoma group 3, which is characterized by TGF-β signalling activation, c-MYC amplification, and OTX2 expression. We describe the process of activation of the PRUNE1 signalling pathway that includes its binding to NME1, TGF-β activation, OTX2 upregulation, SNAIL (SNAI1) upregulation, and PTEN inhibition. The newly identified small molecule pyrimido-pyrimidine derivative AA7.1 enhances PRUNE1 degradation, inhibits this activation network, and augments PTEN expression. Both AA7.1 and a competitive permeable peptide that impairs PRUNE1/NME1 complex formation, impair tumour growth and metastatic dissemination in orthotopic xenograft models with a metastatic medulloblastoma group 3 cell line (D425-Med cells). Using whole exome sequencing technology in metastatic medulloblastoma primary tumour cells, we also define 23 common 'non-synonymous homozygous' deleterious gene variants as part of the protein molecular network of relevance for metastatic processes. This PRUNE1/TGF-β/OTX2/PTEN axis, together with the medulloblastoma-driver mutations, is of relevance for future rational and targeted therapies for metastatic medulloblastoma group 3.10.1093/brain/awy039_video1awy039media15742053534001.
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Affiliation(s)
- Veronica Ferrucci
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Naples, Italy.,CEINGE Biotecnologie Avanzate, Naples, Italy.,European School of Molecular Medicine (SEMM), Milan, Italy
| | - Pasqualino de Antonellis
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Naples, Italy.,CEINGE Biotecnologie Avanzate, Naples, Italy.,Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Ontario, Canada
| | - Francesco Paolo Pennino
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Naples, Italy.,CEINGE Biotecnologie Avanzate, Naples, Italy
| | | | - Antonella Virgilio
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Naples, Italy
| | | | - Aldo Galeone
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Naples, Italy
| | | | - Ida Pisano
- CEINGE Biotecnologie Avanzate, Naples, Italy
| | | | - Luigi Navas
- Department of Veterinary Medicine and Animal Productions, Università degli Studi di Napoli Federico II, Naples, Italy
| | - Donatella Diana
- Istituto di Biostrutture e Bioimmagini, Consiglio Nazionale della Ricerca, Naples, Italy
| | - Emilia Pedone
- Istituto di Biostrutture e Bioimmagini, Consiglio Nazionale della Ricerca, Naples, Italy
| | - Sara Gargiulo
- Istituto di Biostrutture e Bioimmagini, Consiglio Nazionale della Ricerca, Naples, Italy
| | - Matteo Gramanzini
- Istituto di Biostrutture e Bioimmagini, Consiglio Nazionale della Ricerca, Naples, Italy
| | - Arturo Brunetti
- CEINGE Biotecnologie Avanzate, Naples, Italy.,Dipartimento di Scienze Biomediche Avanzate, Università degli Studi di Napoli Federico II, Naples, Italy
| | - Laura Danielson
- Division of Clinical Studies, The Institute of Cancer Research, London SM2 5NG, UK
| | - Marianeve Carotenuto
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Naples, Italy.,CEINGE Biotecnologie Avanzate, Naples, Italy
| | | | - Antonio Verrico
- Paediatric Neurosurgery, Ospedale Santobono-Pausilipon, Naples, Italy
| | - Lucia Quaglietta
- Paediatric Neurosurgery, Ospedale Santobono-Pausilipon, Naples, Italy
| | | | | | - Valeria D'Argenio
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Naples, Italy.,CEINGE Biotecnologie Avanzate, Naples, Italy
| | - Felice Tirone
- Genetic Control of Development-URT, Institute of Cell Biology and Neurobiology, National Research Council, Fondazione Santa Lucia, Rome, Italy
| | - Angela Mastronuzzi
- Dipartimento di Onco-Ematologia, IRCCS Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | | | - Felice Giangaspero
- Dipartimento di Scienze Radiologiche, Oncologiche e Anatomo Patologiche, Università La Sapienza, Rome, Italy.,IRCCS Neuromed, Pozzilli, Italy
| | - Daniel Picard
- German Cancer Consortium (DKTK), Department of Paediatric Oncology, Haematology, and Clinical Immunology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Marc Remke
- German Cancer Consortium (DKTK), Department of Paediatric Oncology, Haematology, and Clinical Immunology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Livia Garzia
- Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Ontario, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto ON, Canada
| | - Craig Daniels
- Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Ontario, Canada
| | - Olivier Delattre
- PSL Research University, Inserm U830, Equipe Labellisée Ligue contre le Cancer, Institut Curie, Paris, France
| | - Fredrik J Swartling
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - William A Weiss
- Department of Neurology, University of California, San Francisco, San Francisco, CA, USA
| | - Francesco Salvatore
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Naples, Italy.,CEINGE Biotecnologie Avanzate, Naples, Italy
| | - Roberto Fattorusso
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche e Farmaceutiche, Caserta, Italy
| | - Louis Chesler
- Division of Clinical Studies, The Institute of Cancer Research, London SM2 5NG, UK
| | - Michael D Taylor
- Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Ontario, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto ON, Canada
| | - Giuseppe Cinalli
- Paediatric Neurosurgery, Ospedale Santobono-Pausilipon, Naples, Italy
| | - Massimo Zollo
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Naples, Italy.,CEINGE Biotecnologie Avanzate, Naples, Italy.,European School of Molecular Medicine (SEMM), Milan, Italy.,DAI-Medicina Trasfusionale-Azienda Ospedaliera Universitaria Federico II, Naples, Italy
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4
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De Marco C, Rinaldo N, De Vita F, Forzati F, Caira E, Iovane V, Paciello O, Montanaro D, D'Andrea S, Baldassarre G, Papparella S, Malanga D, Baldi A, Viglietto G. The T197A Knock-in Model of Cdkn1b Gene to Study the Effects of p27 Restoration In Vivo. Mol Cancer Ther 2018; 18:482-493. [PMID: 30425132 DOI: 10.1158/1535-7163.mct-18-0134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 08/07/2018] [Accepted: 11/08/2018] [Indexed: 11/16/2022]
Abstract
The CDK inhibitor, p27kip1, encoded by the Cdkn1b gene can negatively modulate cell proliferation. The control of p27 activity during the cell cycle is regulated at multiple levels, including transcription, translation, and protein stability. The last residue of p27 (threonine 198 in human, threonine 197 in mouse) is involved in the control of protein stability. We have generated a murine knock-in model (Cdkn1b T197A) in which threonine 197 is replaced by alanine, which renders p27 protein highly unstable due to a high rate of proteasomal degradation. Expectedly, Cdkn1b T197A/T197A mice present with increased body size and weight, organomegaly, and multiple organ hyperplasia, similar to what is observed in Cdkn1b KO/KO mice. We investigated the effects exerted by the restoration of normal levels of p27 protein in the tissue of Cdkn1b T197A/T197A mice. We found that proteasome inhibition with bortezomib rescues the hyperplasia induced by the lack of p27 expression in Cdkn1b T197A/T197A but not in Cdkn1b KO/KO mice. However, BAY 11-7082, a proteasome inhibitor that stabilizes IκB but not p27, fails to rescue hyperplasia in Cdkn1b T197A/T197A mice. Bortezomib increases p27 half-life and reduces the proliferation in MEFs derived from Cdkn1b T197A/T197A but not from Cdkn1b WT/WT mice, whereas BAY 11-7082 had no effect on the protein levels of p27 and on the proliferation rate of Cdkn1b T197A/T197A MEFs.The results presented here demonstrate that Cdkn1b T197A/T197A mice represent an attractive in vivo model to investigate whether the targeting of p27 degradation machinery might prove beneficial in the treatment of a variety of human proliferative disorders caused by increased turnover of p27 protein.
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Affiliation(s)
- Carmela De Marco
- Department of Experimental and Clinical Medicine, University "Magna Graecia," Catanzaro, Italy
| | - Nicola Rinaldo
- Biogem S.c.a.r.l, Genetic Research Institute "Gaetano Salvatore," Ariano Irpino (AV), Italy
| | - Fernanda De Vita
- Biogem S.c.a.r.l, Genetic Research Institute "Gaetano Salvatore," Ariano Irpino (AV), Italy
| | - Floriana Forzati
- Institute of Experimental Endocrinology and Oncology "G. Salvatore"-CNR c/o Department of Molecular Medicine and Medical Biotechnology, University "Federico II," Naples, Italy
| | - Elvira Caira
- Department of Experimental and Clinical Medicine, University "Magna Graecia," Catanzaro, Italy
| | - Valentina Iovane
- Department of Veterinary Medicine and Animal Productions, University Federico II, Napoli, Italy
| | - Orlando Paciello
- Department of Veterinary Medicine and Animal Productions, University Federico II, Napoli, Italy
| | | | - Sara D'Andrea
- Molecular Oncology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, Italy
| | - Gustavo Baldassarre
- Molecular Oncology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, Italy
| | - Serenella Papparella
- Department of Veterinary Medicine and Animal Productions, University Federico II, Napoli, Italy
| | - Donatella Malanga
- Department of Experimental and Clinical Medicine, University "Magna Graecia," Catanzaro, Italy
| | | | - Giuseppe Viglietto
- Department of Experimental and Clinical Medicine, University "Magna Graecia," Catanzaro, Italy.
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5
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Vanello N, Callara A, Morelli M, Cauzzo S, Giannoni A, Hartwig V, Montanaro D, Passino C, Landini L, Emdin M. An analysis of fMRI signal during voluntary breath hold and carbon dioxide challenge: physiological correction and modeling issues. Int J Psychophysiol 2018. [DOI: 10.1016/j.ijpsycho.2018.07.482] [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: 10/28/2022]
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6
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Masillo A, Brandizzi M, Valmaggia LR, Saba R, Lo Cascio N, Lindau JF, Telesforo L, Venturini P, Montanaro D, Di Pietro D, D'Alema M, Girardi P, Fiori Nastro P. Interpersonal sensitivity and persistent attenuated psychotic symptoms in adolescence. Eur Child Adolesc Psychiatry 2018; 27:309-318. [PMID: 28918440 DOI: 10.1007/s00787-017-1047-2] [Citation(s) in RCA: 2] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Accepted: 09/01/2017] [Indexed: 01/10/2023]
Abstract
Interpersonal sensitivity defines feelings of inner-fragility in the presence of others due to the expectation of criticism or rejection. Interpersonal sensitivity was found to be related to attenuated positive psychotic symptom during the prodromal phase of psychosis. The aims of this study were to examine if high level of interpersonal sensitivity at baseline are associated with the persistence of attenuated positive psychotic symptoms and general psychopathology at 18-month follow-up. A sample of 85 help-seeking individuals (mean age = 16.6, SD = 5.05) referred an Italian early detection project, completed the interpersonal sensitivity measure and the structured interview for prodromal symptoms (SIPS) at baseline and were assessed at 18-month follow-up using the SIPS. Results showed that individuals with high level of interpersonal sensitivity at baseline reported high level of attenuated positive psychotic symptoms (i.e., unusual thought content) and general symptoms (i.e., depression, irritability and low tolerance to daily stress) at follow-up. This study suggests that being "hypersensitive" to interpersonal interactions is a psychological feature associated with attenuated positive psychotic symptoms and general symptoms, such as depression and irritability, at 18-month follow-up. Assessing and treating inner-self fragilities may be an important step of early detection program to avoid the persistence of subtle but very distressing long-terms symptoms.
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Affiliation(s)
- Alice Masillo
- Faculty of Medicine and Odontology, Department of Neurology and Psychiatry, Sapienza University of Rome, UOD Psicoterapia "Villa Tiburtina" via Casal de' Pazzi 16, 00156, Rome, Italy.
| | - M Brandizzi
- Faculty of Medicine and Odontology, Department of Neurology and Psychiatry, Sapienza University of Rome, UOD Psicoterapia "Villa Tiburtina" via Casal de' Pazzi 16, 00156, Rome, Italy
| | - L R Valmaggia
- Department of Psychology, King's College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK.,South London and Maudsley NHS Trust, London, UK
| | - R Saba
- Faculty of Medicine and Odontology, Department of Neurology and Psychiatry, Sapienza University of Rome, UOD Psicoterapia "Villa Tiburtina" via Casal de' Pazzi 16, 00156, Rome, Italy
| | - N Lo Cascio
- Faculty of Medicine and Odontology, Department of Neurology and Psychiatry, Sapienza University of Rome, UOD Psicoterapia "Villa Tiburtina" via Casal de' Pazzi 16, 00156, Rome, Italy
| | - J F Lindau
- Faculty of Medicine and Odontology, Department of Neurology and Psychiatry, Sapienza University of Rome, UOD Psicoterapia "Villa Tiburtina" via Casal de' Pazzi 16, 00156, Rome, Italy
| | - L Telesforo
- Neurosciences, Mental Health and Sensory Functions (NESMOS) Department, Faculty of Medicine and Psychology, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy
| | - P Venturini
- Neurosciences, Mental Health and Sensory Functions (NESMOS) Department, Faculty of Medicine and Psychology, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy
| | - D Montanaro
- Community Mental Health Service, ASL Rome H, Rome, Italy
| | - D Di Pietro
- Community Mental Health Service, ASL Rome H, Rome, Italy
| | - M D'Alema
- Community Mental Health Service, ASL Rome H, Rome, Italy
| | - P Girardi
- Neurosciences, Mental Health and Sensory Functions (NESMOS) Department, Faculty of Medicine and Psychology, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy
| | - P Fiori Nastro
- Faculty of Medicine and Odontology, Department of Neurology and Psychiatry, Sapienza University of Rome, UOD Psicoterapia "Villa Tiburtina" via Casal de' Pazzi 16, 00156, Rome, Italy
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7
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Mikellidou K, Arrighi R, Aghakhanyan G, Tinelli F, Frijia F, Crespi S, De Masi F, Montanaro D, Morrone MC. Plasticity of the human visual brain after an early cortical lesion. Neuropsychologia 2017; 128:166-177. [PMID: 29100949 DOI: 10.1016/j.neuropsychologia.2017.10.033] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 10/16/2017] [Accepted: 10/29/2017] [Indexed: 11/17/2022]
Abstract
In adults, partial damage to V1 or optic radiations abolishes perception in the corresponding part of the visual field, causing a scotoma. However, it is widely accepted that the developing cortex has superior capacities to reorganize following an early lesion to endorse adaptive plasticity. Here we report a single patient case (G.S.) with near normal central field vision despite a massive unilateral lesion to the optic radiations acquired early in life. The patient underwent surgical removal of a right hemisphere parieto-temporal-occipital atypical choroid plexus papilloma of the right lateral ventricle at four months of age, which presumably altered the visual pathways during in utero development. Both the tumor and surgery severely compromised the optic radiations. Residual vision of G.S. was tested psychophysically when the patient was 7 years old. We found a close-to-normal visual acuity and contrast sensitivity within the central 25° and a great impairment in form and contrast vision in the far periphery (40-50°) of the left visual hemifield. BOLD response to full field luminance flicker was recorded from the primary visual cortex (V1) and in a region in the residual temporal-occipital region, presumably corresponding to the middle temporal complex (MT+), of the lesioned (right) hemisphere. A population receptive field analysis of the BOLD responses to contrast modulated stimuli revealed a retinotopic organization just for the MT+ region but not for the calcarine regions. Interestingly, consistent islands of ipsilateral activity were found in MT+ and in the parieto-occipital sulcus (POS) of the intact hemisphere. Probabilistic tractography revealed that optic radiations between LGN and V1 were very sparse in the lesioned hemisphere consistently with the post-surgery cerebral resection, while normal in the intact hemisphere. On the other hand, strong structural connections between MT+ and LGN were found in the lesioned hemisphere, while the equivalent tract in the spared hemisphere showed minimal structural connectivity. These results suggest that during development of the pathological brain, abnormal thalamic projections can lead to functional cortical changes, which may mediate functional recovery of vision.
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Affiliation(s)
- K Mikellidou
- Department of Translational Research on New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - R Arrighi
- Department of Neuroscience, Psychology, Pharmacology and Child Health, University of Florence, Florence, Italy
| | - G Aghakhanyan
- Department of Translational Research on New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - F Tinelli
- Department of Developmental Neuroscience, Stella Maris Scientific Institute, Pisa, Italy
| | - F Frijia
- UOC Bioingegneria e Ingegneria Clinica, Fondazione CNR/Regione Toscana G. Monasterio, Pisa, Italy
| | - S Crespi
- Department of Psychology, Vita-Salute San Raffaele University, Milan, Italy; Unit of Experimental Psychology, Division of Neuroscience, Scientific Institute San Raffaele, Milan, Italy; Neuroradiology Unit - CERMAC, San Raffaele Hospital, Milan, Italy
| | - F De Masi
- Division of Anesthesiology and Intensive Care, University Hospital of Pisa, Italy
| | - D Montanaro
- Unità di Neuroradiologia, Fondazione CNR/Regione Toscana G. Monasterio, Pisa, Italy
| | - M C Morrone
- Department of Translational Research on New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy; Department of Developmental Neuroscience, Stella Maris Scientific Institute, Pisa, Italy.
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8
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Pero R, Palmieri D, Angrisano T, Valentino T, Federico A, Franco R, Lembo F, Klein-Szanto AJ, Del Vecchio L, Montanaro D, Keller S, Arra C, Papadopoulou V, Wagner SD, Croce CM, Fusco A, Chiariotti L, Fedele M. POZ-, AT-hook-, and zinc finger-containing protein (PATZ) interacts with the human oncogene B cell lymphoma 6 (BCL6) and is required for its negative autoregulation. J Biol Chem 2017; 292:5609. [PMID: 28363935 DOI: 10.1074/jbc.a117.346270] [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: 11/06/2022] Open
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9
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Menicucci D, Gentili C, Piarulli A, Laurino M, Pellegrini S, Mastorci F, Bedini R, Montanaro D, Sebastiani L, Gemignani A. Brain connectivity is altered by extreme physical exercise during non-REM sleep and wakefulness: indications from EEG and fMRI studies. Arch Ital Biol 2016; 154:103-117. [PMID: 28306130 DOI: 10.12871/00039829201641] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Brain connectivity is associated to behavioral states (e.g. wake, sleep) and modified by physical activity although, to date, it is not clear which components (e.g. hypothalamus-pituitary-adrenal axis hormones, cytokines) associated to the exercise are involved. In this pilot study, we used extreme exercise (UltraTriathlon) as a model to investigate physical-activity-related changes of brain connectivity. We studied post-race brain synchronization during wakefulness and sleep as well as possible correlations between exercise-related cytokines/hormones and synchronization features. For wakefulness, global synchronization was evaluated by estimating from fMRI data (12 athletes) the brain global connectivity (GC). GC increased in several brain regions, mainly related to sensory-motor activity, emotional modulation and response to stress that may foster rapid exchange of information across regions, and reflect post-race internally-focused mental activity or disengagement from previous motor programs. No significant correlations between cytokines/hormones and GC were found. For sleep (8 athletes), synchronization was evaluated by estimating the local-(cortical) and global-related (thalamo- cortical) EEG features associated to the phenomenon of Sleep Slow Oscillations (SSO) of NREM sleep. Results showed that: power of fast rhythms in the baseline preceding the SSO increased in midline and parietal regions; amplitude and duration of SSOs increased, mainly in posterior areas; sigma modulation in the SSO up state decreased. In the post race, IL-10 positively correlated with fast rhythms baseline, SSO rate and positive slope; IL-1ra and cortisol inversely correlated with SSO duration; TNF-α and C-reactive protein positively correlated with fast rhythm modulation in the SSO up state. Sleep results suggest that: arousal during sleep, estimated by baseline fast rhythms, is increased; SSO may be sustained by cortical excitability, linked to anti-inflammatory markers (IL-10); thalamo-cortical entrainment, (sigma modulation), is impaired in athletes with higher inflammatory markers.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - A Gemignani
- Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, via Savi 10, 56126, Pisa, Italy -
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10
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Hoyos JM, Ferraro A, Sacchetti S, Keller S, De Martino I, Borbone E, Pallante P, Fedele M, Montanaro D, Esposito F, Cserjesi P, Chiariotti L, Troncone G, Fusco A. Erratum: HAND1 gene expression is negatively regulated by the High Mobility Group A1 proteins and is drastically reduced in human thyroid carcinomas. Oncogene 2016; 35:5930. [DOI: 10.1038/onc.2016.137] [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: 11/09/2022]
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11
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Cimmino F, Avitabile M, Pezone L, Scalia G, Montanaro D, Andreozzi M, Terracciano L, Iolascon A, Capasso M. CD55 is a HIF-2α marker with anti-adhesive and pro-invading properties in neuroblastoma. Oncogenesis 2016; 5:e212. [PMID: 27043658 PMCID: PMC4848835 DOI: 10.1038/oncsis.2016.20] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 12/31/2015] [Accepted: 01/14/2016] [Indexed: 02/08/2023] Open
Abstract
CD55 has been revealed to have an important role in tumor genesis, and presence of small populations of cells with strong CD55 expression would be sufficient to predict poor prognosis of several tumors. In our study we revealed that CD55 is a novel target of hypoxia-inducible factor HIF-2α in neuroblastoma (NB) cells. We show that HIF-2α expression is sufficient to sustain stem-like features of NB cells, whereas CD55 protein upon HIF-2α expression contributes to growth of colonies and to invasion of cells, but not to stemness features. Interestingly, in NB tissues, CD55 expression is limited to quite a small population of cells that are HIF-2α positive, and the gene expression of CD55 in the NB data set reveals that the presence of CD55(high) affects prognosis of NB patients. The functional characterization of CD55-positive populations within heterogeneous NB monoclonal cell lines shows that CD55 has pro-invading and anti-adhesive properties that might provide the basis for the ability of solid tumors to survive as microscopic residual disease. The easy accessibility to CD55 membrane antigen will offer the possibility of a novel antibody approach in the treatment of recurrent tumors and will provide a ready target for antibody-based visualization in NB diagnosis and prognosis.
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Affiliation(s)
- F Cimmino
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli ‘Federico II', Naples, Italy
- CEINGE Biotecnologie Avanzate, Naples, Italy
| | - M Avitabile
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli ‘Federico II', Naples, Italy
- CEINGE Biotecnologie Avanzate, Naples, Italy
| | - L Pezone
- CEINGE Biotecnologie Avanzate, Naples, Italy
- Dipartimento di Medicina, Scuola di Medicina e Chirurgia, Università degli Studi di Verona, Verona, Italy
| | - G Scalia
- CEINGE Biotecnologie Avanzate, Naples, Italy
| | - D Montanaro
- CEINGE Biotecnologie Avanzate, Naples, Italy
| | - M Andreozzi
- Institute of Pathology, University of Basel, Basel, Switzerland
| | - L Terracciano
- Institute of Pathology, University of Basel, Basel, Switzerland
| | - A Iolascon
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli ‘Federico II', Naples, Italy
- CEINGE Biotecnologie Avanzate, Naples, Italy
| | - M Capasso
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli ‘Federico II', Naples, Italy
- CEINGE Biotecnologie Avanzate, Naples, Italy
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12
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Iaffaldano L, Nardelli C, Pilone V, Labruna G, Alfieri A, Montanaro D, Ferrigno M, Zeccolella MR, Carlomagno N, Renda A, Baldi A, Forestieri P, Sacchetti L, Buono P. Laparoscopic adjustable gastric banding reduces subcutaneous adipose tissue and blood inflammation in nondiabetic morbidly obese individuals. Obes Surg 2015; 24:2161-8. [PMID: 24923694 DOI: 10.1007/s11695-014-1326-7] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Significant and sustained excess weight loss (EWL) appears to reduce the risk of obesity-related comorbidities (insulin resistance, hyperlipidemia, and inflammation), but this has been primarily shown in adult diabetic obese patients. We evaluated whether the EWL obtained 3 years after laparoscopic adjustable gastric banding (LAGB) improves the metabolic phenotype in nondiabetic morbidly obese (NDMO) individuals from south Italy. METHODS Serum and subcutaneous adipose tissue (SAT) samples from 20 obese individuals (median BMI=41.5 kg/m(2)) before (T0) and after LAGB (T1) and from 10 controls (median BMI=22.8 kg/m(2)) were taken. Serum leptin, adiponectin, C reactive protein (CRP), and main analyte levels were evaluated by routine methods or immunoassay. In SAT, adipocyte size was measured by hematoxylin/eosin staining, cluster of differentiation 68 (CD68) macrophage infiltration marker by immunohistochemistry, and adiponectin, adiponectin receptors 1 and 2, and interleukin 6 (IL6) messenger RNAs by qRT-PCR. RESULTS The average EWL was 66.7 %, and CRP, triglycerides, hepatic markers, leptin levels, homeostasis model assessment, and the leptin/adiponectin ratio were lower (p<0.05) at T1 than at T0. The expression of small adipocytes and adiponectin was increased (p<0.05), and inflammation markers (CD68 and IL6) decreased (p<0.05) at T1 vs. T0. At linear regression multivariate analysis, over 90 % (R (2)=0.905) of EWL (dependent variable) was explained by CD68, adiponectinemia, triglyceridemia, CRP, and total protein levels. CONCLUSIONS The EWL obtained 3 years after LAGB resulted in an improvement of lipid metabolism and a reduction of inflammation in NDMO patients, thereby decreasing the risk of obesity-associated diseases.
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Affiliation(s)
- Laura Iaffaldano
- CEINGE-Biotecnologie Avanzate S.C.a R.L., Via G. Salvatore 486, 80145, Naples, Italy
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13
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Franco R, Collina F, Di Bonito M, Botti G, Montanaro D, Di Maio L, Vincenzi B, Landi G, D'Aiuto M, Caraglia M, Baldi A. HtrA1 loss is related to aggressive behavior parameters in sentinel node positive breast cancer. Histol Histopathol 2015; 30:707-14. [PMID: 25530301 DOI: 10.14670/hh-30.707] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM HtrA1, a member of the High Temperature Requirement Factor A family of oxidative stress-response proteases seems to play a role as a tumor suppressor, being down-regulated in a series of human cancers during their progression. Particularly, low HtrA1 mRNA levels have been observed in breast cancer patients with more aggressive clinical features. These have been shown to relate to a longer disease free and overall survival, with more pronounced effects in axillary nodes positive patients. SUBJECTS AND METHODS We have analyzed for immunohistochemical HtrA1 expression a series of 66 sentinel node positive breast cancers through Tissue Micro Array technology. RESULTS HtrA1 was absent to low in 29 cases, medium in 19 cases and high in 18 cases. Our data revealed a positive significant relation between HtrA1 expression level and estrogen (p=0,002) and progestinic receptor expression (p=0.003) and a negative correlation with histological grading (p=0.028), proliferation index (p=0.05), common BC histotypes (p=0.040), luminal A and B subtypes (p=0.001), metastasis development (p<0.0001) and local relapse (p<0.0001). Finally, no correlation was recorded between HtrA1 expression level and breast cancer histology type and metastasis to non sentinel nodes. Interestingly HtrA1 loss in SLN metastasis was able to predict positive non sentinel nodes (p=0.001). CONCLUSIONS Low HtrA1 expression is significantly related to breast cancer poor prognosis parameters, and HtrA1 loss in sentinel nodes is related to metastasis of non sentinel nodes, offering a further marker useful for BC prognostic stratification.
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Affiliation(s)
- Renato Franco
- Pathology Unit, National Cancer Institute "Fondazione Giovanni Pascale", Naples, Italy.
| | - Francesca Collina
- Pathology Unit, National Cancer Institute "Fondazione Giovanni Pascale", Naples, Italy.
| | - Maurizio Di Bonito
- Pathology Unit, National Cancer Institute "Fondazione Giovanni Pascale", Naples, Italy.
| | - Gerardo Botti
- Pathology Unit, National Cancer Institute "Fondazione Giovanni Pascale", Naples, Italy.
| | | | - Luigi Di Maio
- Department of Surgery, Spirito Santo Hospital, Pescara, Italy.
| | - Bruno Vincenzi
- Department of Medical Oncology, University Campus Bio-Medico, Rome, Italy.
| | - Gabriella Landi
- Breast Oncology Department, National Cancer Institute "Fondazione Giovanni Pascale", Naples, Italy.
| | - Massimiliano D'Aiuto
- Breast Oncology Department, National Cancer Institute "Fondazione Giovanni Pascale", Naples, Italy.
| | - Michele Caraglia
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Naples, Italy.
| | - Alfonso Baldi
- CEINGE, Biotecnologie Avanzate, and Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Naples, Italy.
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14
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Messa P, Mioni G, Montanaro D, Adorati M, Antonucci F, Favazza A, Messa M, Enzmann G, Paganin L, Nardini R. About a primitive osseous origin of the so-called 'renal hypercalciuria'. Contrib Nephrol 2015; 58:106-10. [PMID: 2826076 DOI: 10.1159/000414497] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- P Messa
- Division of Nephrology, Ospedale Civile di Udine, Italy
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15
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Adani GL, Righi E, Baccarani U, Montanaro D, Tulissi P, Terrosu G, Risaliti A. Laparoscopic sleeve gastrectomy as a weight reduction strategy in obese patients after kidney transplantation. Am J Transplant 2015; 15:1126-7. [PMID: 25801867 DOI: 10.1111/ajt.13206] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 11/25/2014] [Accepted: 11/26/2014] [Indexed: 01/25/2023]
Affiliation(s)
- G L Adani
- Kidney Transplant Program, Department of Medical & Biological Sciences, University Hospital, Udine, Italy
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16
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De Ciantis A, Barkovich AJ, Cosottini M, Barba C, Montanaro D, Costagli M, Tosetti M, Biagi L, Dobyns WB, Guerrini R. Ultra-high-field MR imaging in polymicrogyria and epilepsy. AJNR Am J Neuroradiol 2014; 36:309-16. [PMID: 25258368 DOI: 10.3174/ajnr.a4116] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Polymicrogyria is a malformation of cortical development that is often identified in children with epilepsy or delayed development. We investigated in vivo the potential of 7T imaging in characterizing polymicrogyria to determine whether additional features could be identified. MATERIALS AND METHODS Ten adult patients with polymicrogyria previously diagnosed by using 3T MR imaging underwent additional imaging at 7T. We assessed polymicrogyria according to topographic pattern, extent, symmetry, and morphology. Additional imaging sequences at 7T included 3D T2* susceptibility-weighted angiography and 2D tissue border enhancement FSE inversion recovery. Minimum intensity projections were used to assess the potential of the susceptibility-weighted angiography sequence for depiction of cerebral veins. RESULTS At 7T, we observed perisylvian polymicrogyria that was bilateral in 6 patients, unilateral in 3, and diffuse in 1. Four of the 6 bilateral abnormalities had been considered unilateral at 3T. While 3T imaging revealed 2 morphologic categories (coarse, delicate), 7T susceptibility-weighted angiography images disclosed a uniform ribbonlike pattern. Susceptibility-weighted angiography revealed numerous dilated superficial veins in all polymicrogyric areas. Tissue border enhancement imaging depicted a hypointense line corresponding to the gray-white interface, providing a high definition of the borders and, thereby, improving detection of the polymicrogyric cortex. CONCLUSIONS 7T imaging reveals more anatomic details of polymicrogyria compared with 3T conventional sequences, with potential implications for diagnosis, genetic studies, and surgical treatment of associated epilepsy. Abnormalities of cortical veins may suggest a role for vascular dysgenesis in pathogenesis.
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Affiliation(s)
- A De Ciantis
- From the Pediatric Neurology Unit (A.D.C., C.B., R.G.), Meyer Children's Hospital, University of Florence, Florence, Italy
| | - A J Barkovich
- Department of Radiology and Biomedical Imaging (A.J.B.), University of California San Francisco, San Francisco, California
| | - M Cosottini
- Department of Translational Research and New Technologies in Medicine and Surgery (M. Cosottini), University of Pisa, Pisa, Italy IMAGO7 Foundation (M. Cosottini), Pisa, Italy
| | - C Barba
- From the Pediatric Neurology Unit (A.D.C., C.B., R.G.), Meyer Children's Hospital, University of Florence, Florence, Italy
| | - D Montanaro
- Fondazione Consiglio Nazionale delle Ricerche/Regione Toscana (D.M.), Unità Operativa Semplice Neuroradiologia, Pisa, Italy
| | - M Costagli
- Istituto di Ricovero e Cura a Carattere Scientifico Stella Maris Foundation (M. Costagli, M.T., L.B., R.G.), Pisa, Italy
| | - M Tosetti
- Istituto di Ricovero e Cura a Carattere Scientifico Stella Maris Foundation (M. Costagli, M.T., L.B., R.G.), Pisa, Italy
| | - L Biagi
- Istituto di Ricovero e Cura a Carattere Scientifico Stella Maris Foundation (M. Costagli, M.T., L.B., R.G.), Pisa, Italy
| | - W B Dobyns
- Center for Integrative Brain Research (W.B.D.), Seattle Children's Hospital, Seattle, Washington
| | - R Guerrini
- From the Pediatric Neurology Unit (A.D.C., C.B., R.G.), Meyer Children's Hospital, University of Florence, Florence, Italy Istituto di Ricovero e Cura a Carattere Scientifico Stella Maris Foundation (M. Costagli, M.T., L.B., R.G.), Pisa, Italy
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17
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Pero R, Palmieri D, Angrisano T, Valentino T, Federico A, Franco R, Lembo F, Klein-Szanto AJ, Del Vecchio L, Montanaro D, Keller S, Arra C, Papadopoulou V, Wagner SD, Croce CM, Fusco A, Chiariotti L, Fedele M. POZ-, AT-hook-, and zinc finger-containing protein (PATZ) interacts with human oncogene B cell lymphoma 6 (BCL6) and is required for its negative autoregulation. J Biol Chem 2014. [DOI: 10.1074/jbc.a112.346270] [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: 11/06/2022] Open
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18
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Aghakhanyan G, Martinuzzi A, Frijia F, Vavla M, Hlavata H, Baratto A, Martino N, Paparella G, Montanaro D. Brain white matter involvement in hereditary spastic paraplegias: analysis with multiple diffusion tensor indices. AJNR Am J Neuroradiol 2014; 35:1533-8. [PMID: 24788132 DOI: 10.3174/ajnr.a3897] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
BACKGROUND AND PURPOSE The hereditary spastic paraplegias are a group of genetically heterogeneous neurodegenerative disorders, characterized by progressive spasticity and weakness of the lower limbs. Although conventional brain MR imaging findings are normal in patients with pure hereditary spastic paraplegia, microstructural alteration in the cerebral WM can be revealed with DTI. Concomitant investigation of multiple intrinsic diffusivities may shed light on the neurobiologic substrate of the WM degeneration pattern in patients with pure hereditary spastic paraplegia across the whole brain. MATERIALS AND METHODS Tract-based spatial statistics analysis was performed to compare fractional anisotropy and mean, axial, and radial diffusivities of the WM skeleton in a group of 12 patients with pure hereditary spastic paraplegia and 12 healthy volunteers. Data were analyzed counting age and sex as nuisance covariates. The threshold-free cluster-enhancement option was applied, and the family-wise error rate was controlled by using permutation tests for nonparametric statistics. RESULTS In pure hereditary spastic paraplegia, group widespread fractional anisotropy decreases and radial diffusivity and mean diffusivity increases (P < .05, corrected) were found. No voxelwise difference was observed for the axial diffusivity map. Percentage of voxels within the WM skeleton that passed the significance threshold were 51%, 41.6%, and 11.9%, respectively, for radial diffusivity, fractional anisotropy, and mean diffusivity clusters. An anteroposterior pattern with preferential decrease of fractional anisotropy in the frontal circuitry was detected. CONCLUSIONS In patients with pure hereditary spastic paraplegia, alterations in multiple DTI indices were found. Radial diffusivity seems more sensitive to hereditary spastic paraplegia-related WM pathology and, in line with the lack of axial diffusivity changes, might indicate a widespread loss of myelin integrity. A decrease of fractional anisotropy alone in the frontal circuitry may reflect subtle disruption of the frontal connections.
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Affiliation(s)
- G Aghakhanyan
- From the Institute of Life Sciences (G.A.), Scuola Superiore Sant'Anna, Pisa, ItalyNeuroradiology Unit (G.A., F.F., H.H., D.M.), Fondazione CNR/Regione Toscana G. Monasterio, Pisa, Italy
| | - A Martinuzzi
- Medea Scientific Institute (A.M., M.V., G.P.), Conegliano and Bosisio Parini, Treviso, Italy
| | - F Frijia
- Neuroradiology Unit (G.A., F.F., H.H., D.M.), Fondazione CNR/Regione Toscana G. Monasterio, Pisa, Italy
| | - M Vavla
- Medea Scientific Institute (A.M., M.V., G.P.), Conegliano and Bosisio Parini, Treviso, Italy
| | - H Hlavata
- Neuroradiology Unit (G.A., F.F., H.H., D.M.), Fondazione CNR/Regione Toscana G. Monasterio, Pisa, Italy
| | - A Baratto
- Radiology Unit (A.B., N.M.), MRI Unit, ULSS7, Conegliano, Treviso, Italy
| | - N Martino
- Radiology Unit (A.B., N.M.), MRI Unit, ULSS7, Conegliano, Treviso, Italy
| | - G Paparella
- Medea Scientific Institute (A.M., M.V., G.P.), Conegliano and Bosisio Parini, Treviso, Italy
| | - D Montanaro
- Neuroradiology Unit (G.A., F.F., H.H., D.M.), Fondazione CNR/Regione Toscana G. Monasterio, Pisa, Italy
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19
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Mazzetta A, Polese D, Gebhardt E, Petrucci M, Santomauro S, Padrevecchi F, Iannaco C, Pompei R, Montanaro D, Ricciardi R, Di Agostino C, Homberg A, Cantini A, Giorgini L. EPA-1707 – From delusional perception to annulment drive (1962–1971). Eur Psychiatry 2014. [DOI: 10.1016/s0924-9338(14)78848-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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20
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Santomauro S, Di Agostino C, Iannaco C, Homberg A, Giorgini L, Gerbhardt E, Montanaro D, Pompei R, Padrevecchi F, Ricciardi R, Petrucci M. EPA-1666 – Physical and psychic birth coincide. about bioethical implications of the birth theory (1972). Eur Psychiatry 2014. [DOI: 10.1016/s0924-9338(14)78811-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Vavla M, Martinuzzi A, Montanaro D, Frijia F, Aghakhanyan G, Mostacciuolo M, Carraro E, Casanova V. A novel mitofusin 2 MFN2 gene mutation causing early onset Charcot-Marie-Tooth 2A disease: Genetic, clinical and MR spectroscopy characterization. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.1629] [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: 10/26/2022]
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Marques IB, Silva RDM, Moraes CE, Azevedo LS, Nahas WC, David-Neto E, Furmanczyk-Zawiska A, Baczkowska T, Chmura A, Szmidt J, Durlik M, Joslin J, Blaker P, White B, Marinaki A, Sanderson J, Goldsmith DJ, Medani S, Traynor C, Mohan P, Little D, Conlon P, Molina M, Gonzalez E, Gutierrez E, Sevillano A, Polanco N, Morales E, Hernandez A, Praga M, Morales JM, Andres A, Park SJ, Kim TH, Kim YW, Kim YH, Kang SW, Kujawa-Szewieczek A, Szotowska M, Kuczera P, Chudek J, Wiecek A, Kolonko A, Mahrova A, Svagrova K, Bunc V, Stollova M, Teplan V, Hundt F, van Heteren P, Woitas R, Cavallo MC, Sepe V, Conte F, Albrizio P, Bottazzi A, Geraci PM, Alpay N, Gumber MR, Kute VB, Vanikar AV, Patel HV, Shah PR, Engineer DP, Trivedi HL, Golebiewska JE, Debska-Slizien A, Rutkowski B, Matias P, Martins AR, Raposo L, Jorge C, Weigert A, Birne R, Bruges M, Adragao T, Almeida M, Mendes M, Machado D, Masin-Spasovska J, Dohcev S, Stankov O, Stavridis S, Saidi S, Dejanova B, Rambabova-Busletic I, Dejanov P, Spasovski G, Nho KW, Kim YH, Han DJ, Park SK, Kim SB, Fenoglio R, Lazzarich EE, Cagna D, Cena T, Conti N, Quaglia M, Radin E, Izzo C, Stratta P, Oh IH, Park JS, Lee CH, Kang CM, Kim GH, Leone F, Lofaro D, Gigliotti P, Lupinacci S, Toteda P, Vizza D, Perri A, Papalia T, Bonofiglio R, di Loreto P, de Silvestro L, Montanaro D, Martino F, Sandrini S, Minetti E, Cabiddu G, Yildirim T, Yilmaz R, Turkmen E, Abudalal A, Altindal M, Ertoy-Baydar D, Erdem Y, Panuccio V, Tripepi R, Parlongo G, Versace MC, Politi R, Zoccali C, Mallamaci F, Porrini E, Silva I, Diaz J, Ibernon M, Moreso F, Benitez R, Delgado Mallen P, Osorio J, Lauzurica R, Torres A, Ersoy A, Koca N, Gullu Koca T, Kirhan E, Sarandol E, Ersoy C, Dirican M, Milne J, Suter V, Mikhail A, Akalin H, Dizdar O, Ersoy A, Pascual J, Torio A, Garcia C, Hernandez J, Perez-Saez MJ, Mir M, Anna F, Crespo M, Carta P, Zanazzi M, Antognoli G, Di Maria L, Caroti L, Minetti E, Dizdar O, Ersoy A, Akalin H, Ray DS, Mukherjee K, Bohidar NP, Pattanaik A, Das P, Thukral S, Kimura T, Yagisawa T, Ishikawa N, Sakuma Y, Fujiwara T, Nukui A, Gavela EE, Sancho AA, Kanter JJ, Avila AA, Beltran SS, Pallardo LL, Dawoud FG, Aithal V, Mikhail A, Majernikova M, Rosenberger J, Prihodova L, Nagyova I, Jarcuskova M, Roland R, Groothoff JW, van Dijk JP, van Agteren M, de Weerd A, van de Wetering J, IJzermans J, Betjes M, Weimar W, Popoola J, Reed A, Tavarro R, Chryssanthopoulou C, MacPhee I, Mayor M, Franco S, Jara P, Ayala R, Orue MG, Martinez A, Martinez M, Wasmouth N, Arik G, Yasar A, Turkmen E, Yildirim T, Altindal M, Abudalal A, Yilmaz S, Arici M, Bihari Bansal S, Pokhariyal S, Jain S, Sethi S, Ahlawat R, Kher V, Martins LS, Aguiar P, Dias L, Fonseca I, Henriques AC, Cabrita A, Davide J, Sparkes TM, Trofe-Clark J, Reese PP, Jakobowski D, Goral S, Doll SL, Abt PL, Sawinski D, MBloom RD, Knap B, Lukac J, Lukin M, Majcen I, Pavlovec F, Kandus A, Bren AF, Kong JM, Jeong JH, Ahn J, Lee DR, Son SH, Kim BC, Choi WY, Whang EJ, Czajka B, Malgorzewicz S, Debska-Slizien A, Rutkowski B, Panizo N, Rengel MA, Vega A, Abad S, Tana L, Arroyo D, Rodriguez-Ferrero M, Perez de Jose A, Lopez-Gomez JM, Koutroutsos K, Sackey J, Paolini L, Ramkhelawon R, Tavarro R, Chowrimootoo M, Whelan D, Popoola J, Szotowska M, Kuczera P, Chudek J, Wiecek A, Kolonko A, Slatinska J, Honsova E, Wohlfahrtova M, Slimackova E, Rajnochova SB, Viklicky O, Yankovoy A, Smith ISJ, Wylie E, Ruiz-Esteban P, Lopez V, Garcia-Frias P, Cabello M, Gonzalez-Molina M, Vozmediano C, Hernandez D, Pavlovic J, Radivojevic D, Lezaic V, Simic-Ogrizovic S, Lausevic M, Naumovic R, Ersoy A, Koca N, Kirhan E, Gullu Koca T, Ersoy C, Sarandol E, Dirican M, Sakhuja V, Gundlapalli S, Rathi M, Jha V, Kohli HS, Sharma A, Minz M, Nimgirova A, Esayan A, Kayukov I, Zuyeva E, Bilen Y, Cankaya E, Keles M, Gulcan E, Turkeli M, Albayrak B, Uyanik A, Yildirim R, Molitor N, Praktiknjo M, Woitas R, Abeygunaratne TN, Balasubramanian S, Baker R, Nicholson T, Toprak O, Sari Y, Keceli S, Kurt H, Rocha A, Malheiro J, Martins LS, Fonseca I, Dias L, Pedroso S, Almeida M, Henriques A, Nihei C, Bacelar Marques I, Seguro CA, David-Neto E, Mate G, Martin N, Colon L, Casellas L, Garangou D, de la Torre M, Torguet P, Garcia I, Calabia J, Valles M, Pruthi R, Calestani M, Leydon G, Ravanan R, Roderick P, Korkmaz S, Ersoy A, Gulten S, Koca N. Transplantation - clinical studies II. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft155] [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: 11/14/2022] Open
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Lombardo B, Rocco T, Esposito MT, Cantilena B, Gargiulo S, Greco A, Montanaro D, Brunetti A, Pastore L. Thymidine Kinase-Mediated Shut Down of Bone Morphogenetic Protein-4 Expression Allows Regulated Bone Production. Curr Gene Ther 2013; 13:202-10. [DOI: 10.2174/1566523211313030005] [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] [Received: 10/30/2012] [Revised: 01/02/2013] [Accepted: 01/02/2013] [Indexed: 11/22/2022]
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Castaldi E, Frijia F, Montanaro D, Tosetti M, Morrone MC. BOLD human responses to chromatic spatial features. Eur J Neurosci 2013; 38:2290-9. [PMID: 23600977 DOI: 10.1111/ejn.12223] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 03/11/2013] [Accepted: 03/20/2013] [Indexed: 11/28/2022]
Abstract
Animal physiological and human psychophysical studies suggest that an early step in visual processing involves the detection and identification of features such as lines and edges, by neural mechanisms with even- and odd-symmetric receptive fields. Functional imaging studies also demonstrate mechanisms with even- and odd-receptive fields in early visual areas, in response to luminance-modulated stimuli. In this study we measured fMRI BOLD responses to 2-D stimuli composed of only even or only odd symmetric features, and to an amplitude-matched random noise control, modulated in red-green equiluminant colour contrast. All these stimuli had identical power but different phase spectra, either highly congruent (even or odd symmetry stimuli) or random (noise). At equiluminance, V1 BOLD activity showed no preference between congruent- and random-phase stimuli, as well as no preference between even and odd symmetric stimuli. Areas higher in the visual hierarchy, both along the dorsal pathway (caudal part of the intraparietal sulcus, dorsal LO and V3A) and the ventral pathway (V4), responded preferentially to odd symmetry over even symmetry stimuli, and to congruent over random phase stimuli. Interestingly, V1 showed an equal increase in BOLD activity at each alternation between stimuli of different symmetry, suggesting the existence of specialised mechanisms for the detection of edges and lines such as even- and odd-chromatic receptive fields. Overall the results indicate a high selectivity of colour-selective neurons to spatial phase along both the dorsal and the ventral pathways in humans.
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Affiliation(s)
- E Castaldi
- Department of Neuroscience, Psychology, Pharmacology and Child health, University of Florence, Firenze, Italy
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Buanne P, Renzone G, Monteleone F, Vitale M, Monti SM, Sandomenico A, Garbi C, Montanaro D, Accardo M, Troncone G, Zatovicova M, Csaderova L, Supuran CT, Pastorekova S, Scaloni A, De Simone G, Zambrano N. Characterization of Carbonic Anhydrase IX Interactome Reveals Proteins Assisting Its Nuclear Localization in Hypoxic Cells. J Proteome Res 2012. [DOI: 10.1021/pr300565w] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
| | - Giovanni Renzone
- Proteomics and Mass Spectrometry
Laboratory, ISPAAM, CNR, Naples, Italy
| | | | - Monica Vitale
- CEINGE Biotecnologie Avanzate SCaRL, Naples, Italy
- Dipartimento di Medicina Molecolare
e Biotecnologie Mediche, Università di Napoli Federico II, Italy
| | | | | | - Corrado Garbi
- Dipartimento di Biologia e Patologia
Cellulare e Molecolare, Università di Napoli Federico II, Italy
| | | | - Marina Accardo
- Department
of Public Health, Section
of Pathology, Seconda Università di Napoli, Italy
| | - Giancarlo Troncone
- CEINGE Biotecnologie Avanzate SCaRL, Naples, Italy
- Dipartimento di
Scienze Biomorfologiche
e Funzionali, Università di Napoli Federico II, Italy
| | - Miriam Zatovicova
- Department of
Molecular Medicine,
Institute of Virology, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Lucia Csaderova
- Department of
Molecular Medicine,
Institute of Virology, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | | | - Silvia Pastorekova
- Department of
Molecular Medicine,
Institute of Virology, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Andrea Scaloni
- Proteomics and Mass Spectrometry
Laboratory, ISPAAM, CNR, Naples, Italy
| | | | - Nicola Zambrano
- CEINGE Biotecnologie Avanzate SCaRL, Naples, Italy
- Dipartimento di Medicina Molecolare
e Biotecnologie Mediche, Università di Napoli Federico II, Italy
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Pero R, Palmieri D, Angrisano T, Valentino T, Federico A, Franco R, Lembo F, Klein-Szanto AJ, Del Vecchio L, Montanaro D, Keller S, Arra C, Papadopoulou V, Wagner SD, Croce CM, Fusco A, Chiariotti L, Fedele M. POZ-, AT-hook-, and zinc finger-containing protein (PATZ) interacts with human oncogene B cell lymphoma 6 (BCL6) and is required for its negative autoregulation. J Biol Chem 2012; 287:18308-17. [PMID: 22493480 DOI: 10.1074/jbc.m112.346270] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
The PATZ1 gene encoding a POZ/AT-hook/Kruppel zinc finger (PATZ) transcription factor, is considered a cancer-related gene because of its loss or misexpression in human neoplasias. As for other POZ/domain and Kruppel zinc finger (POK) family members, the transcriptional activity of PATZ is due to the POZ-mediated oligomer formation, suggesting that it might be not a typical transactivator but an architectural transcription factor, thus functioning either as activator or as repressor depending on the presence of proteins able to interact with it. Therefore, to better elucidate PATZ function, we searched for its molecular partners. By yeast two-hybrid screenings, we found a specific interaction between PATZ and BCL6, a human oncogene that plays a key role in germinal center (GC) derived neoplasias. We demonstrate that PATZ and BCL6 interact in germinal center-derived B lymphoma cells, through the POZ domain of PATZ. Moreover, we show that PATZ is able to bind the BCL6 regulatory region, where BCL6 itself acts as a negative regulator, and to contribute to negatively modulate its activity. Consistently, disruption of one or both Patz1 alleles in mice causes focal expansion of thymus B cells, in which BCL6 is up-regulated. This phenotype was almost completely rescued by crossing Patz1(+/-) with Bcl6(+/-) mice, indicating a key role for Bcl6 expression in its development. Finally, a significant number of Patz1 knock-out mice (both heterozygous and homozygous) also develop BCL6-expressing lymphomas. Therefore, the disruption of one or both Patz1 alleles may favor lymphomagenesis by activating the BCL6 pathway.
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Affiliation(s)
- Raffaela Pero
- Dipartimento di Biologia e Patologia Cellulare e Molecolare, Università di Napoli Federico II and Consiglio Nazionale delle Ricerche (CNR), Naples, Italy
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Capuano M, Iaffaldano L, Tinto N, Montanaro D, Capobianco V, Izzo V, Tucci F, Troncone G, Greco L, Sacchetti L. MicroRNA-449a overexpression, reduced NOTCH1 signals and scarce goblet cells characterize the small intestine of celiac patients. PLoS One 2011; 6:e29094. [PMID: 22194996 PMCID: PMC3240641 DOI: 10.1371/journal.pone.0029094] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2011] [Accepted: 11/21/2011] [Indexed: 12/11/2022] Open
Abstract
MiRNAs play a relevant role in regulating gene expression in a variety of physiological and pathological conditions including autoimmune disorders. MiRNAs are also important in the differentiation and function of the mouse intestinal epithelium. Our study was aimed to look for miRNA-based modulation of gene expression in celiac small intestine, and particularly for genes involved in cell intestinal differentiation/proliferation mechanisms. A cohort of 40 children (20 with active CD, 9 on a gluten-free diet (GFD), and 11 controls), were recruited at the Paediatrics Department (University of Naples Federico II). The expression of 365 human miRNAs was quantified by TaqMan low-density arrays. We used bioinformatics to predict putative target genes of miRNAs and to select biological pathways. The presence of NOTCH1, HES1, KLF4, MUC-2, Ki67 and beta-catenin proteins in the small intestine of CD and control children was tested by immunohistochemistry. The expression of about 20% of the miRNAs tested differed between CD and control children. We found that high miR-449a levels targeted and reduced both NOTCH1 and KLF4 in HEK-293 cells. NOTCH1, KLF4 signals and the number of goblet cells were lower in small intestine of children with active CD and in those on a GFD than in controls, whereas more nuclear beta-catenin staining, as a sign of the WNT pathway activation, and more Ki67 staining, as sign of proliferation, were present in crypts from CD patients than in controls. In conclusion we first demonstrate a miRNA mediated gene regulation in small intestine of CD patients. We also highlighted a reduced NOTCH1 pathway in our patients, irrespective of whether the disease was active or not. We suggest that NOTCH pathway could be constitutively altered in the celiac small intestine and could drive the increased proliferation and the decreased differentiation of intestinal cells towards the secretory goblet cell lineage.
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Affiliation(s)
- Marina Capuano
- CEINGE (Centro di Ingegneria Genetica) Advanced Biotechnology, s. c. a r. l., Naples, Italy
- Department of Biochemistry and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Laura Iaffaldano
- CEINGE (Centro di Ingegneria Genetica) Advanced Biotechnology, s. c. a r. l., Naples, Italy
- Department of Biochemistry and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Nadia Tinto
- CEINGE (Centro di Ingegneria Genetica) Advanced Biotechnology, s. c. a r. l., Naples, Italy
- Department of Biochemistry and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Donatella Montanaro
- CEINGE (Centro di Ingegneria Genetica) Advanced Biotechnology, s. c. a r. l., Naples, Italy
| | - Valentina Capobianco
- Fondazione IRCSS SDN (Istituto di Ricovero e Cura a Carattere Scientifico - Istituto di Ricerca Diagnostica e Nucleare), Naples, Italy
| | - Valentina Izzo
- Department of Paediatrics and European Laboratory for the Investigation of Food-Induced Diseases (ELFID), University of Naples Federico II, Naples, Italy
| | - Francesca Tucci
- Department of Paediatrics and European Laboratory for the Investigation of Food-Induced Diseases (ELFID), University of Naples Federico II, Naples, Italy
| | - Giancarlo Troncone
- CEINGE (Centro di Ingegneria Genetica) Advanced Biotechnology, s. c. a r. l., Naples, Italy
- Department of Biomorphological and Functional Sciences, University of Naples Federico II, Naples, Italy
| | - Luigi Greco
- Department of Paediatrics and European Laboratory for the Investigation of Food-Induced Diseases (ELFID), University of Naples Federico II, Naples, Italy
| | - Lucia Sacchetti
- CEINGE (Centro di Ingegneria Genetica) Advanced Biotechnology, s. c. a r. l., Naples, Italy
- Department of Biochemistry and Medical Biotechnology, University of Naples Federico II, Naples, Italy
- * E-mail:
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Marega A, Fregonese C, Tulissi P, Vallone C, Gropuzzo M, Toniutto PL, Baccarani U, Bresadola F, Toso F, Montanaro D. Preemptive liver-kidney transplantation in von Gierke disease: a case report. Transplant Proc 2011; 43:1196-7. [PMID: 21620087 DOI: 10.1016/j.transproceed.2011.03.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Type 1a glycogen storage disease (GSD 1a), or von Gierke disease, is a rare, autosomal-recessive disease caused by a deficiency of glucose-6-phosphatase, which leads to glycogen accumulation in the liver, kidney, and intestinal mucosa. Clinical manifestations include hypoglycemia, growth retardation, hepatomegaly, lactic acidemia, hyperlipidemia, and hyperuricemia. Long-term complications include renal disease, gout, osteoporosis, pulmonary hypertension, short stature, and hepatocellular adenomas, which may undergo malignant transformation. Herein we have described the management and the clinical course of a GSD1a patient who underwent simultaneous preemptive liver- kidney transplantation (SPLKT), which solved the liver and renal disease. We confirmed the rapid normalization of glucose metabolism, and correction of hyperlipemia after liver transplantation. In our opinion uremic patients with GSD 1a with or without adenomas must be considered for SPLKT. To our knowledge this is the fifth case of SPLKT and the first preemptive one to be described in the literature.
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Affiliation(s)
- A Marega
- Department of Nephrology, Azienda Ospedaliero Universitaria S Maria della Misericordia, Udine, Italy.
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Barba C, Giovannelli F, Frija F, Borgheresi A, De Ciantis A, Montanaro D, Cincotta M, Guerrini R. S2.5 An integrated multimodal approach for assessing functional reorganization in unilateral polymicrogyria. Clin Neurophysiol 2011. [DOI: 10.1016/s1388-2457(11)60012-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Barba C, Montanaro D, Giordano F, Frija F, Genitori L, Guerrini R. P2.17 Non invasive functional mapping in children with symptomatic perirolandic seizures: the contribution of functional MRI during passive motor tasks. Clin Neurophysiol 2011. [DOI: 10.1016/s1388-2457(11)60216-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Andolfo I, Petrosino G, Vecchione L, De Antonellis P, Capasso M, Montanaro D, Gemei M, Troncone G, Iolascon A, Orditura M, Ciardiello F, De Vita F, Zollo M. Detection of erbB2 copy number variations in plasma of patients with esophageal carcinoma. BMC Cancer 2011; 11:126. [PMID: 21481261 PMCID: PMC3094322 DOI: 10.1186/1471-2407-11-126] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Accepted: 04/11/2011] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Mortality is high in patients with esophageal carcinoma as tumors are rarely detected before the disease has progressed to an advanced stage. Here, we sought to isolate cell-free DNA released into the plasma of patients with esophageal carcinoma, to analyze copy number variations of marker genes in the search for early detection of tumor progression. METHODS Plasma of 41 patients with esophageal carcinoma was prospectively collected before tumor resection and chemotherapy. Our dataset resulted heterogeneous for clinical data, resembling the characteristics of the tumor. DNA from the plasma was extracted to analyze copy number variations of the erbB2 gene using real-time PCR assays. RESULTS The real-time PCR assays for erbB2 gene showed significant (P = 0.001) copy number variations in the plasma of patients with esophageal carcinoma, as compared to healthy controls with high sensitivity (80%) and specificity (95%). These variations in erbB2 were negatively correlated to the progression free survival of these patients (P = 0.03), and revealed a further risk category stratification of patients with low VEGF expression levels. CONCLUSION The copy number variation of erbB2 gene from plasma can be used as prognostic marker for early detection of patients at risk of worse clinical outcome in esophageal cancer.
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Affiliation(s)
- Immacolata Andolfo
- CEINGE, Centro di Ingegneria Genetica e Biotecnologia Avanzate, Naples, Italy
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Romano G, Simonella R, Falleti E, Bortolotti N, Deiuri E, Antonutto G, De Vita S, Ferraccioli GF, Montanaro D. Physical training effects in renal transplant recipients. Clin Transplant 2011; 24:510-4. [PMID: 19788449 DOI: 10.1111/j.1399-0012.2009.01098.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: 12/16/2022]
Abstract
INTRODUCTION Several studies demonstrated the benefits of rehabilitation in uraemic patients. This study evaluates physical and psychosocial effects of exercise on renal transplant recipients (RTRs). PATIENTS AND METHODS Eight RTRs were evaluated before and after an exercise training consisting of thirty 40-minute sessions, three times a week, performed with the interval training technique. RESULTS Hospital Anxiety and Depression Scale (HADS) significantly decreased (p<0.04 and <0.008, respectively). Quality of life mean scores (SF-36 test) significantly increased (p<0.000). No differences were recorded for muscle and fat mass, maximal explosive power of the lower limbs, alkaline and acid phosphatase, parathormone (PTH), myoglobin, lipoprotein-A, glomerular filtration rate (GFR), at rest heart rate, and cardiac troponin. IL-6 decreased from 2.8±0.6 to 1.7±0.5 pg/mL (p<0.01). Resting MAP fell from 112±4 to 99±3 mmHg (p<0.02). The metabolic threshold rose from 33±4 to 43±5% (p<0.033). The blood lactate level at peak exercise increased from 5.2±0.9 to 6.2±0.7 mmol/L (p<0.012). The maximum oxygen uptake increased from 1200±210 to 1359±202 mL/min (p<0.05), iso-load oxygen uptake decreased from 1110±190 to 1007±187 mL/min (p<0.034). The maximum working capacity increased from 90±14 to 115±15 watts (p<0.000). CONCLUSION This study suggests that an appropriate dose of physical training is a useful, safe and non-pharmacologic contribution to RTR treatment.
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Affiliation(s)
- G Romano
- S.M. Misericordia University Hospital, Udine, Italy.
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Di Loreto P, Martino F, Chiaramonte S, Dissegna D, Ronco C, Marchesoni D, Catapano P, Romano G, Montanaro D. Pregnancy After Kidney Transplantation: Two Transplantation Centers—Vicenza–Udine Experience. Transplant Proc 2010; 42:1158-61. [DOI: 10.1016/j.transproceed.2010.03.082] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Canapicchi R, De Marchi D, Lombardo F, Fortunato S, De Cori S, Montanaro D, Berrettini S. Sudden Sensorineural Hearing Loss: MR Imaging. Neuroradiol J 2010; 23:161-71. [PMID: 24148533 DOI: 10.1177/197140091002300203] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2009] [Accepted: 12/07/2009] [Indexed: 11/17/2022] Open
Abstract
Hearing loss greater than 30 dB over three contiguous pure-tone frequencies occurring within a three day period is defined as sudden hearing loss. It is usually sensorineural (SSNHL), unilateral and appears as an otologic emergency. SSNHL has many possibile etiologies such as: labyrinthine viral infection, ischemic or hemorrhagic illness, trauma, immuno-mediated inner ear disease, tumor, inner ear malformation, and an imbalance between perilymphatic and endolymphatic fluid pressure. Nevertheless in almost 80% of cases SSNHL belongs to the idiopathic category because the etiology is unknown. The aim of this study was to test the diagnostic impact of two MR devices. Fifteen cases of SSNHL studied with a 1.5 T unit in our hospital between January 2006 and December 2008 within two weeks of the onset were retrospectively evaluated. Since January 2009 three more patients affected by SSNHL have been scanned with a 3T MR unit. We discuss the diagnostic sensitivity, clinical usefulness and the cost-benefit ratio of the MR systems.
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Affiliation(s)
- R Canapicchi
- MR Laboratory, "G. Monasterio" Foundation, Tuscany Region, ANA National Research Council; Pisa, Italy -
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Barba C, Montanaro D, Cincotta M, Giovannelli F, Guerrini R. An integrated fMRI, SEPs and MEPs approach for assessing functional organization in the malformed sensorimotor cortex. Epilepsy Res 2010; 89:66-71. [PMID: 20129761 DOI: 10.1016/j.eplepsyres.2009.12.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2009] [Revised: 10/15/2009] [Accepted: 12/26/2009] [Indexed: 11/24/2022]
Abstract
PURPOSE Malformations of cortical development are often accompanied by an abnormal cortical pattern. Due to its propensity to involve discrete cortical areas, polymicrogyria represents an interesting model for assessing the reorganization of cortical function in relation to the disrupted anatomy. Functional MRI, TMS and SEPs can provide a highly complementary, multimodal approach to map noninvasively the functional rearrangement of sensorimotor functions in the polymicrogyric cortex, and to obtain a coherent modelling. We report here an illustrative case which is included in a patients series under study using a block design 3T fMRI, short-latency SEPs as identified on the basis of their latency, polarity, and scalp distribution and an assessment of the area and volume of the motor maps and the relative position of the center of gravity and hot spot. RESULTS A 15 years old girl, with drug-resistant epilepsy and left perisylvian polymicrogyria that was part of a large epileptogenic network including also the mesial aspect of the left frontal lobe, exhibited a normal distribution of somatomotor responses in the expected anatomic sites, with a dissociation between motor functions, which were slightly impaired in the malformed hemisphere, and bilaterally normal sensory responses. In this patient, a large resection of epileptogenic zone, sparing eloquent areas as previously identified, should be planned in order to improve seizure outcome. CONCLUSIONS An integrated fMRI, TMS and SEP mapping approach helps defining the relationship between epileptogenic zones and somatomotor areas. Studies of greater number of patients will be necessary in order to identify the general rules that determine the functional representation in the malformed cortex.
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Affiliation(s)
- C Barba
- Pediatric Neurology Unit and Laboratories, Children's Hospital A. Meyer-University of Florence, Viale Pieraccini 24, 50139 Florence, Italy.
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Esposito MT, Di Noto R, Mirabelli P, Gorrese M, Parisi S, Montanaro D, Del Vecchio L, Pastore L. Culture conditions allow selection of different mesenchymal progenitors from adult mouse bone marrow. Tissue Eng Part A 2009; 15:2525-36. [PMID: 19298168 DOI: 10.1089/ten.tea.2008.0509] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The use of adult stem cells in tissue engineering approaches will benefit from the establishment of culture conditions that allow the expansion and maintenance of cells with stem cell-like activity and high differentiation potential. In the field of adult stem cells, bone marrow stromal cells (BMSCs) are promising candidates. In the present study, we define, for the first time, conditions for optimizing the yields of cultures enriched for specific progenitors of bone marrow. Using four distinct culture conditions, supernatants from culture of bone fragments, marrow stroma cell line MS-5, embryonic fibroblast cell line NIH3T3, and a cocktail of epidermal growth factor (EGF) and platelet-derived growth factor (PDGF), we isolated four different sub-populations of murine BMSCs (mBMSCs). These cells express a well-known marker of undifferentiated embryonic stem cells (Nanog) and show interesting features in immunophenotype, self-renewal ability, and differentiation potency. In particular, using NIH3T3 conditioned medium, we obtained cells that showed impairment in osteogenic and chondrogenic differentiation while retaining high adipogenic potential during passages. Our results indicate that the choice of the medium used for isolation and expansion of mBMSCs is important for enriching the culture of desired specific progenitors.
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Lombardo F, Frijia F, Bongioanni P, Canapicchi R, Minichilli F, Bianchi F, Hlavata H, Rossi B, Montanaro D. Diffusion tensor MRI and MR spectroscopy in long lasting upper motor neuron involvement in amyotrophic lateral sclerosis. Arch Ital Biol 2009; 147:69-82. [PMID: 20014653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Upper motor neuron (UMN) dysfunction in Amyotrophic Lateral Sclerosis (ALS) is not easy to identify clinically: Diffusion Tensor Imaging (DTI) and single-voxel Magnetic Resonance Spectroscopy (H-MRS) can identify markers of UMN involvement. The aim of this study was to correlate brain DTI and MRS data with clinical parameters in ALS patients (PALS). We studied 32 PALS using Magnetic Resonance Imaging. The subjects were subdivided into definite/probable (D/P) and possible/suspected (P/S). DTI indices included Fractional Anisotropy (FA) and averaged Apparent Diffusion Coefficient (avADC). Anatomical areas were sampled by positioning regions of interest along corticospinal tracts, from the precentral cortex to the bulb. H-MRS voxels were localized bilaterally in precentral regions. D/P-PALS showed significantly lower FA values than healthy controls in almost all regions, whereas P/S-PALS FA values were significantly lower only in the left precentral gray matter (GM), right precentral white matter (WM), cerebral peduncles (CP), left hemipons, and left bulbar pyramid (BP). Significantly higher avADC values were observed in the D/P-PALS right precentral GM, precentral WM, right semioval center-posterior limb of the internal capsule (SC-PLIC), and left CP; and in the precentral WM, right SC-PLIC, left CP, and right hemipons of P/S-PALS. With increasing disability, only D/P-PALS showed significantly reduced FA values in the left precentral WM and hemipons, and increased avADC values in the precentral WM. Significantly lower N-acetylaspartate (NAA)/creatine-phosphocreatine complex (Cr) and higher choline (Cho)/Cr and myoinositol (mI)/Cr ratios were found in D/P-PALS, while only higher Cho/Cr and mI/Cr ratios were found in P/S-PALS. Our data highlight the usefulness of DTI and H-MRS in assessing UMN involvement. Given FA sensitivity and specificity, despite the small number of PALS, our findings support its use as a diagnostic marker in D/P-PALS.
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Affiliation(s)
- F Lombardo
- Fondazione CNR/Regione Toscana, U.O.S. Neuroradiologia, Pisa, Italy
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Colicchio R, Ricci S, Lamberti F, Pagliarulo C, Pagliuca C, Braione V, Braccini T, Talà A, Montanaro D, Tripodi S, Cintorino M, Troncone G, Bucci C, Pozzi G, Bruni CB, Alifano P, Salvatore P. The meningococcal ABC-Type L-glutamate transporter GltT is necessary for the development of experimental meningitis in mice. Infect Immun 2009; 77:3578-87. [PMID: 19528209 PMCID: PMC2737999 DOI: 10.1128/iai.01424-08] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2008] [Revised: 01/21/2009] [Accepted: 06/05/2009] [Indexed: 11/20/2022] Open
Abstract
Experimental animal models of bacterial meningitis are useful to study the host-pathogen interactions occurring at the cerebral level and to analyze the pathogenetic mechanisms behind this life-threatening disease. In this study, we have developed a mouse model of meningococcal meningitis based on the intracisternal inoculation of bacteria. Experiments were performed with mouse-passaged serogroup C Neisseria meningitidis. Survival and clinical parameters of infected mice and microbiological and histological analysis of the brain demonstrated the establishment of meningitis with features comparable to those of the disease in humans. When using low bacterial inocula, meningococcal replication in the brain was very efficient, with a 1,000-fold increase of viable counts in 18 h. Meningococci were also found in the blood, spleens, and livers of infected mice, and bacterial loads in different organs were dependent on the infectious dose. As glutamate uptake from the host has been implicated in meningococcal virulence, mice were infected intracisternally with an isogenic strain deficient in the ABC-type L-glutamate transporter GltT. Noticeably, the mutant was attenuated in virulence in mixed infections, indicating that wild-type bacteria outcompeted the GltT-deficient meningococci. The data show that the GltT transporter plays a role in meningitis and concomitant systemic infection, suggesting that meningococci may use L-glutamate as a nutrient source and as a precursor to synthesize the antioxidant glutathione.
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Scarabino T, Popolizio T, Tosetti M, Montanaro D, Giannatempo GM, Terlizzi R, Pollice S, Maiorana A, Maggialetti N, Carriero A, Leuzzi V, Salvolini U. Phenylketonuria: white-matter changes assessed by 3.0-T magnetic resonance (MR) imaging, MR spectroscopy and MR diffusion. Radiol Med 2009; 114:461-74. [PMID: 19277839 DOI: 10.1007/s11547-009-0365-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2008] [Accepted: 10/06/2008] [Indexed: 12/13/2022]
Abstract
PURPOSE This study evaluated the sensitivity of a 3.0-Tesla (T) magnetic resonance imaging (MRI) in measuring cerebral phenylalanine using proton magnetic resonance spectroscopy and in assessing MR-documented white-matter changes by means of diffusion studies (diffusion-weighted imaging, apparent diffusion coefficient map; diffusion tensor imaging) in patients with phenylketonuria. MATERIALS AND METHODS Thirty-two patients with the classical clinical and biochemical deficits of phenylketonuria underwent biochemical (blood phenylalanine), genotypic (phenylalanine hydroxylase gene) and radiological investigation by means of MRI, proton magnetic resonance spectroscopy and diffusion magnetic resonance imaging with a 3.0-T scanner. RESULTS Periventricular and subcortical white-matter changes were detected on all MR scans. In 29/32 patients, proton magnetic resonance spectroscopy easily documented abnormal signal elevation at 7.36 ppm, corresponding to phenylalanine, despite its low concentration. Phenylalanine signal amplitude relative to the creatine/phosphocreatine signal increased linearly with blood phenylalanine values (r 0.7067; p<0.001). Diffusion MRI demonstrated hyperintensity in the areas exhibiting MRI changes as well as decreased apparent diffusion coefficient values, but fractional anisotropy indices were normal. CONCLUSIONS The high signal, together with better spectral, spatial, contrast and temporal resolution, makes the 3.0-T MR the most suitable technique in the study of the phenylketonuria. In particular, the multimodal approach with MRI, proton magnetic resonance spectroscopy and diffusion magnetic resonance imaging can provide more information than previous studies performed with low-field systems.
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Affiliation(s)
- T Scarabino
- U. O. di Neuroradiologia, AUSL BAT, Ospedale Lorenzo Bonomo, Andria, Italy.
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Chilosi AM, Cipriani P, Pecini C, Brizzolara D, Biagi L, Montanaro D, Tosetti M, Cioni G. Acquired focal brain lesions in childhood: effects on development and reorganization of language. Brain Lang 2008; 106:211-225. [PMID: 18267339 DOI: 10.1016/j.bandl.2007.12.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2007] [Revised: 12/10/2007] [Accepted: 12/14/2007] [Indexed: 05/25/2023]
Abstract
In the present paper, we address brain-behaviour relationships in children with acquired aphasia, by reviewing some recent studies on the effects of focal brain lesions on language development. Timing of the lesion, in terms of its occurrence, before or after the onset of speech and language acquisition, may be a major factor determining language outcome. However, it is still unclear which are the effects of aphasia occurring between 2 and 5 years of age, a time window which is crucial for acquiring and automatizing the basic rules of native language. A comprehensive review of the literature on acquired childhood aphasia precedes the description of long-term follow-up (20 years) of two identical twins, one of whom became aphasic at 3 years and 4 months after infarction of the left sylvian artery. Psycholinguistic analysis and fMRI data show a slow and incomplete recovery from non-fluent aphasia associated to an intra-hemispheric organization of language. These data, which support the potential but also the limits of neural plasticity during language development, are discussed in the light of the literature on the time-course and neural bases of acquired childhood aphasia.
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Affiliation(s)
- A M Chilosi
- Department of Developmental Neuroscience, IRCCS Stella Maris, Via dei Giacinti 2, 56118 Calambrone, Pisa, Italy.
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Pecini C, Biagi L, Guzzetta A, Montanaro D, Brizzolara D, Cipriani P, Chilosi A, Tosetti M, Cioni G. Brain representation of phonological processing in Italian: individual variability and behavioural correlates. Arch Ital Biol 2008; 146:189-203. [PMID: 19378881] [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: 05/27/2023]
Abstract
Neuroimaging literature on phonological processing during reading lacks of studies taking into account orthographic differences across languages and behavioural variability across subjects. The present study aimed at investigating brain representation of phonological processing in reading Italian, a language with regular orthography, with particular regard to inter-individual variability and brain-behavioural correlates. Ten Italian adults performed a rhyme generation and a rhyme judgment task during fMRI acquisition and were tested with behavioural measures of phonological processing. Results for both tasks showed activations of the left Inferior Frontal Gyrus and Dorsolateral Prefrontal Cortex, likely underlying output sublexical strategies, for all or most of the subjects, while a minority of subjects activated the Superior Temporal Sulcus and the Temporo-Parietal-Occipital Junction. These results suggest that phonological processing of written Italian is based on the prevalent use of frontal structures. However, it is of interest that the activation of the Superior Temporal Sulcus, involved in phonological input, was associated to better behavioural performances in tasks of phonological processing. Our findings may contribute to understand neural correlates of phonological processing of languages with regular orthography.
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Affiliation(s)
- C Pecini
- Department of Developmental Neuroscience, Stella Maris Scientific Institute, viale del Tirreno 331, 56018, Calambrone, Pisa, Italy.
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Adani GL, Baccarani U, Lorenzin D, Tulissi P, Montanaro D, Gropuzzo M, Vallone C, Risaliti A, Bresadola V, De Anna D. [Uretero-vescical anastomosis during kidney transplantation. Preliminary results of two surgical techniques]. MINERVA UROL NEFROL 2007; 59:217-22. [PMID: 17912233] [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: 05/17/2023]
Abstract
AIM The most frequent urologic complications after renal transplantation involve the uretero-vescical anastomosis (leakage, stenosis, and reflux), with a frequency of 1% to 30% in different series. METHODS We present our results in a prospective randomized trial performed from October 2004 to September 2005, in a cohort of 36 patients, who underwent renal transplantation from cadaveric donor at our institution. A uretero-vescical anastomosis according to Lich-Gregoir was used in 18 cases (group A), whereas an anastomosis according to Knechtle was performed in other 18 patients (group B), respectively. The groups were comparable for donors and recipients characteristics. The mean donor age was 46.3 years vs 44.9 years, and the mean duration of cold ischemia was 1 086+/-296 min vs 1 100+/-381 min for group A and for group B respectively. The mean recipient age was 47.5 years vs 46.1 for group A and group B, respectively. RESULTS No differences were evidenced between the two uretero-vescical anastomosis in term of surgical complications, infections or patient and graft survival at one year of follow-up. Stenosis and leakage involved 2 patients for each group respectively. Numbers of infections, days of antibiotic therapy were similar between the two groups. CONCLUSION Our early experience does not evidence differences between the two types of uretero-vescical anastomosis.
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Affiliation(s)
- G L Adani
- Clinica Chirurgica, Centro Trapianti Fegato, Rene e Pancreas, Università degli Studi di Udine, Udine, Italy.
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Adani GL, Sponza M, Risaliti A, Gasparini D, Montanaro D, Tulissi P, Benzoni E, Lorenzin D, Bresadola V, Baccarani U, De Anna D. Intraperitoneal Tenckhoff catheter for the treatment of recurrent lymphoceles after kidney transplantation: our early experience. Transplant Proc 2007; 39:1851-2. [PMID: 17692631 DOI: 10.1016/j.transproceed.2007.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Lymphoceles may occur as frequently as 16% of the time after kidney transplantation, becoming clinically evident between 18 and 180 days after surgery. The management of lymphoceles is unclear. Percutaneous needle aspiration and external drainage are associated with high recurrence and complications. Surgical intraperitoneal marsupialization of lymphocele is considered the treatment of choice, but requires hospital admission, general anesthesia, and sometimes extensive surgical dissection. We discuss our experience in the treatment of recurrent symptomatic lymphocele intraperitoneally drained using a Tenckhoff catheter in 7 consecutive patients. Clinical manifestations became evident between 26 and 90 days after transplantation. The diagnosis was obtained with abdominal ultrasound in all cases; mean lymphocele diameter was 14 +/- 6 cm. After percutaneous drainage, performed to differentiate urinoma/lymphocele and to rule out infections, the lymphocele recurred within 1 month. Thereafter, we decided to treat recurrent lymphatic collection using a Tenckhoff catheter. The lymphocele was located during the operative procedure using a sterile 3.5-MHz ultrasound probe. With the patient under local anesthesia, we performed 2 vertical 1-cm incisions to the lymphocele and peritoneum, respectively. The Tenckoff catheter was first positioned into the lymphocele and the tunneled inside the peritoneal cavity. One cuff of the Tenckhoff was fixed to the fascia to avoid possible delocalization. The patients were discharged the same day. The catheter was removed 6 months later with no evidence of lymphocele recurrence.
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Affiliation(s)
- G L Adani
- Department of Surgery & Transplantation, Udine University School of Medicine, Udine, Italy.
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Guzzetta A, Bonanni P, Biagi L, Tosetti M, Montanaro D, Guerrini R, Cioni G. Reorganisation of the somatosensory system after early brain damage. Clin Neurophysiol 2007; 118:1110-21. [PMID: 17382585 DOI: 10.1016/j.clinph.2007.02.014] [Citation(s) in RCA: 91] [Impact Index Per Article: 5.4] [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: 12/20/2006] [Revised: 01/24/2007] [Accepted: 02/03/2007] [Indexed: 01/25/2023]
Abstract
OBJECTIVE To examine the reorganisation of the somatosensory system after early brain lesions. METHODS We studied 12 young patients with congenital hemiplegia. Causative lesions were brain malformations, periventricular injuries and cortico-subcortical lesions. We explored the somatosensory system using evoked potentials, fMRI during sensory stimulation and clinical assessment of sensory function. To correlate sensory and motor function, we also performed transcranial magnetic stimulation, fMRI of hand movement and assessment of motor function by means of Melbourne test. RESULTS Eleven patients showed a perilesional reorganisation of primary somatosensory function, as expressed by short latency potentials following stimulation of the paretic hand; in a remaining patient, delayed latency responses (N27.1) were only elicited over the ipsilateral undamaged hemisphere. Five of the eleven patients with perilesional somatosensory representation of the affected hand showed contralesional shifting of motor function, thus exhibiting sensory-motor dissociation. Significant correlation was found between sensory deficit and fMRI activation during sensory stimulation. CONCLUSIONS In subjects with early brain lesions, somato-sensory function is generally reorganised within the affected hemisphere. A contralesional shifting is uncommon and poorly efficient in function restoration. SIGNIFICANCE This study confirms and further explores the difference in reorganisation capabilities of the motor and sensory system following early brain injury of different etiologies and timing.
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Affiliation(s)
- A Guzzetta
- Department of Developmental Neuroscience, Stella Maris Scientific Institute, Via dei Giacinti 2, 56018 Calambrone Pisa, Italy.
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Leuzzi V, Tosetti M, Montanaro D, Carducci C, Artiola C, Carducci C, Antonozzi I, Burroni M, Carnevale F, Chiarotti F, Popolizio T, Giannatempo GM, D'Alesio V, Scarabino T. The pathogenesis of the white matter abnormalities in phenylketonuria. A multimodal 3.0 tesla MRI and magnetic resonance spectroscopy (1H MRS) study. J Inherit Metab Dis 2007; 30:209-16. [PMID: 17245558 DOI: 10.1007/s10545-006-0399-4] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.9] [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: 05/09/2006] [Revised: 09/27/2006] [Accepted: 12/11/2006] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To gain insights into the nature and pathogenesis of white matter (WM) abnormalities in PKU. METHODS Thirty-two patients with phenylalanine hydroxylase deficiency (21 with early and 11 with late diagnosis and treatment) and 30 healthy controls underwent an integrated clinical, neuroimaging (3.0 T MRI, diffusion-weighted imaging (DWI), diffusion tensor imaging (DTI)) and neurochemical (1H MRS) investigation. RESULTS All patients had white matter abnormalities on T2-weighted (T2W) and fluid-attenuated inversion recovery (FLAIR) scans; parietal white was consistently affected, followed by occipital, frontal and temporal white matter. T1-weighted hypointense alterations were also found in 8 of 32 patients. DWI hyperintense areas overlapped with those detected on T2W/FLAIR. The apparent diffusion coefficient (ADC) was reduced and correlated inversely with severity of white matter involvement. Fractional anisotropy index, eigenvalues lambda(min), lambda(middle), lambda(max) obtained from DTI data, and the principal brain metabolites assessed by 1H MRS (except brain phenylalanine (Phe)) were normal. Brain Phe peak was detected in all but two subjects. Brain and blood Phe were strictly associated. Blood Phe at the diagnosis, patient's age, and concurrent brain Phe independently influence white matter alteration (as expressed by conventional MRI or ADC values). CONCLUSIONS (a) MRI abnormalities in phenylketonuria are the result of a distinctive alteration of white matter suggesting the intracellular accumulation of a hydrophilic metabolite, which leaves unaffected white matter architecture and structure. (b) White matter abnormalities do not seem to reflect the mechanisms involved in the derangement of mental development in PKU. (c) Our data do not support the usefulness of conventional brain MRI examination in the clinical monitoring of phenylketonuria patients.
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Affiliation(s)
- V Leuzzi
- Dipartimento di Scienze Neurologiche e Psichiatriche dell'Età Evolutiva, University of Rome La Sapienza, Rome, Italy.
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Montanaro D. [Anemia after renal transplantation]. G Ital Nefrol 2007; 24:13-22. [PMID: 17342689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The anemia which commonly accompanies end-stage kidney disease usually remits within 10 - 16 weeks following successful kidney transplantation. However, a significant number of patients remain anemic or become anemic after transplantation. Unlike the great amount of data available on anemia in end-stage renal disease population, much less is known about post-transplant anemia (PTA). Existing literature data indicate that PTA prevalence is high; the findings of a few longitudinal studies showed a very high prevalence of PTA in the early post-transplantation period; during the first 5-year post-transplant period, 30-40% of transplant patients are anemic, and PTA increases subsequently after transplantation. Available information suggests that PTA prevalence is higher in pediatric compared to adult patients. A decrease in renal allograft function has been identified in several studies as the most important risk factor for PTA development. Other common causes of PTA include iron deficiency, systemic illnesses, acute and chronic infections, and drug toxicities. Several reports indicate that PTA is associated with an increased cardiovascular disease risk. Although PTA is a frequent problem in transplanted patients, iron and erythropoietin therapy are even underused in this population. Erythropoietinis effective and safe in correcting anemia during both early and late post-transplantation period. Prospective interventional studies in anemic kidney transplant recipients are needed to determine the most appropriate hemoglobin target in these patients and the potential beneficial role of erythropoietin therapy for cardiovascular and renal protection.
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Affiliation(s)
- D Montanaro
- Struttura Operativa Complessa di Nefrologia, Dialisi e Trapianto Renale, Azienda Ospedaliero-Universitaria, S. Maria della Misericordia, Udine - Italy.
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Bocciardi R, Giorda R, Marigo V, Zordan P, Montanaro D, Gimelli S, Seri M, Lerone M, Ravazzolo R, Gimelli G. Molecular characterization of a t(2;6) balanced translocation that is associated with a complex phenotype and leads to truncation of the TCBA1 gene. Hum Mutat 2006; 26:426-36. [PMID: 16145689 DOI: 10.1002/humu.20235] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The molecular characterization of balanced chromosomal rearrangements has often been a powerful tool for the positional identification of genes associated with specific diseases. In some instances, these rearrangements may be associated with a variety of different phenotypes, and thus establishing a genotype-phenotype correlation may be a complex process. However, molecular characterization of the rearrangement remains a useful tool for diagnoses or prognoses, or for identifying new genes and establishing a gene-to-function relationship. In this work we describe the characterization of a de novo balanced translocation t(2;6)(q24.3;q22.31) found in a patient with a complex phenotype. The major clinical finding was a severe neurological involvement. Thanks to the molecular characterization of this translocation we found that the rearrangement led to the truncation of the TCBA1 gene on chromosome 6q. We found that the gene is transcribed in different splice variants and is highly specific for the central nervous system. TCBA1 does not show any similarity with other known genes, and no information is available about its function. However, the gene appears to be well conserved among species, and we were able to infer the sequence of a putative mouse homolog of TCBA1. This allowed us to perform a more detailed expression study in mice, thus confirming its specificity for the nervous system. This finding is of particular interest because it suggests that TCBA1 may be correlated with the neurological phenotype of our patient, and possibly mutated in genetic diseases with a neurological phenotype.
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Affiliation(s)
- Renata Bocciardi
- Laboratory of Molecular Genetics, G. Gaslini Institute, Genova, Italy
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Baccarani U, Adani GL, Montanaro D, Risaliti A, Lorenzin D, Avellini C, Tulissi P, Groppuzzo M, Currò G, Luvisetto F, Beltrami A, Bresadola V, Viale PL, Bresadola F. De Novo Malignancies After Kidney and Liver Transplantations: Experience on 582 Consecutive Cases. Transplant Proc 2006; 38:1135-7. [PMID: 16757287 DOI: 10.1016/j.transproceed.2006.02.016] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
De novo malignancies after transplantation are a growing problem of solid organ transplant recipients, due to longer survival follow-up under chronic immunosuppression. The aim of this study was to analyze a population of 582 consecutive kidney (n = 382) and liver (n = 202) transplant recipients, who survived at least 12 months after transplantation, at a single transplant center for the development of de novo cancers. The incidence of de novo malignancies was 7% after both renal and liver transplantation. The median elapsed time from transplant to the diagnosis of de novo malignancy was 45 months (range 3 to 220) months for kidney and 37 months (range 12 to 101 months) for liver transplants. Skin cancers were the most common within renal recipients, while gastroenteric cancers were more frequently encountered in liver transplants. Oropharyngeal and upper digestive tract tumors were always associated with a history of chronic alcohol consumption in liver recipients. Liver transplant recipients treated for acute rejection had a worse cancer prognosis than patients without rejection 1- and 2-year survivals 83% and 63% versus 36% and 17% (P = .026). The estimated 1- and 2-year survival rates for all types of de novo malignancies were 79% and 66%, including 64% and 51% for solid organ tumors versus 89% and 89% for skin cancers and posttransplant lymphoproliferative disorder (PTLD) (P = .17) in renal transplants and 70% and 42%, including 57% and 28% for solid organ tumors versus 85% and 64% for skin cancers and PTLD (P = .43) in liver transplants respectively.
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Affiliation(s)
- U Baccarani
- Department of Surgery and Transplantation, Udine Hospital, Italy.
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Adani GL, Baccarani U, Risaliti A, Sainz-Barriga M, Lorenzin D, Costa G, Toniutto P, Soardo G, Montanaro D, Viale P, Della Rocca G, Bresadola F. A single-center experience of late retransplantation of the liver. Transplant Proc 2006; 37:2599-600. [PMID: 16182757 DOI: 10.1016/j.transproceed.2005.06.028] [Citation(s) in RCA: 12] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Liver retransplantation is considered to carry a higher risk than primary transplantation. However, there are an increasing number of retransplant candidates, especially owing to late graft failure. The aim of this study was to analyze a single-center experience in late liver retransplantation. The overall rate of primary retransplantation was 11.4% (28 re-OLT out of 245 primary OLT); the 14 (52%) who underwent retransplantation at more than 3 months after the first transplant were analyzed by a medical record review. Causes of primary graft failure leading to retransplantation were chronic hepatic artery thombosis in five cases (36%); recurrent HCV cirrhosis in four cases (29%); chronic rejection in two cases (14%); veno-occlusive disease; hepatic vein thrombosis or idiopathic graft failure in one case each (7%). UNOS status at re-OLT was always 2A, all patients were hospitalized; three were intensive care unit bound. ICU and total hospital stay had been 7 +/- 5 and 28 +/- 16 days, respectively. One- and 2-year patient and graft survivals were 84% and 62% and 67% and 67%, respectively. Death occurred in four patients. Two out of the three recovered in ICU at the time of retransplantation, at a median interval of 15 +/- 9 days after retransplantation. The survival rate after late retransplantation is improving, and this option should be considered to be a efficient way to save lives, especially by defining the optimal timing for retransplantation.
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Affiliation(s)
- G L Adani
- Department of Surgery and Transplantation, University Hospital of Udine, Udine, Italy
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Baccarani U, Sanna A, Cariani A, Sainz M, Adani GL, Lorenzin D, Montanaro D, Scalamogna M, Piccolo G, Risaliti A, Bresadola F, Donini A. Cryopreserved human hepatocytes from cell bank: in vitro function and clinical application. Transplant Proc 2005; 37:256-9. [PMID: 15808612 DOI: 10.1016/j.transproceed.2004.12.230] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
UNLABELLED We Aimed to analyze the in vitro function of isolated and cryopreserved human hepatocytes (CHH) from a cell bank and to define their potential clinical application in a bioartificial liver (BAL) device. METHODS Over 24 months, 103 not transplantable livers were utilized for human hepatocytes isolation and cryopreservation. Hepatocytes isolated by collagenase were analyzed for yield, viability, diazepam metabolism, and production of human albumin after isolation and cryopreservation in LN(2). RESULTS The causes for refusal for transplantation were macrosteatosis >60%, ischemic damage due to donor hypotension, and nonviral cirrhosis in 60%, 11%, and 8%, respectively. Cell yields averaged 7 million hepatocytes per gram of liver of mean viability of 80% +/- 13%. The viability of CHH after thawing averaged 50%. Thawed hepatocytes showed diazepam metabolism, and human albumin synthesis comparable to fresh cells. CHH were utilized as the biological component of a BAL for temporary support as three applications of two patients affected by fulminant hepatic failure awaiting urgent transplant. Ten to 13 billion viable CHH were loaded into each BAL. Liver function showed bilirubin and ammonia reduction at the end of each treatment. One patient was successfully bridged to emergency OLTx after one BAL; in the second case there was spontaneous recovery of liver function after two BAL. CONCLUSIONS Recovery of donor human livers unwanted for transplantation allowed isolation and cryopreservation of viable and functionally active human hepatocytes, which have been banked and successfully used for clinical applications of a BAL device.
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Affiliation(s)
- U Baccarani
- Department of Surgery & Transplantation, University of Udine, Udine, Italy.
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