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Dutto M, Bertero M, Petrosillo N, Pombi M, Otranto D. Ebola virus and arthropods: a literature review and entomological consideration on the vector role. ACTA ACUST UNITED AC 2016; 109:244-247. [PMID: 27714628 DOI: 10.1007/s13149-016-0525-y] [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] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 09/10/2016] [Indexed: 12/18/2022]
Abstract
Ebola virus is a pathogen responsible for a severe disease that affects humans and several animal species. To date, the natural reservoir of this virus is not known with certainty, although it is believed that fruit bats (Chiroptera: Pteropodidae) play an important role in maintaining the virus in nature. Although information on viral transmission from animals to humans is not clear, the role of arthropods has come under suspicion. In this article, we review the potential role of arthropods in spreading Ebola virus, acting as mechanical or biological vectors.
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Affiliation(s)
- M Dutto
- Former Entomology Consultant Department of Prevention ASL CN1, Cuneo, Via Papò 4, 12039, Verzuolo (CN), Italy.
| | - M Bertero
- Department of Dermatology, General Hospital "S. Croce e Carle", Cuneo, Italy
| | - N Petrosillo
- National Institute for Infectious Diseases "L. Spallanzani", Rome, Italy
| | - M Pombi
- Department Public Health and Infectious Disease, Parasitology unit, "Sapienza" University of Rome, Rome, Italy
| | - D Otranto
- Department of Veterinary Medicine, University of Bari, Bari, Italy
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De Maio C, Pomero G, Delogu A, Briatore E, Bertero M, Gancia P. Cutis Marmorata Telangiectatica Congenita in a Preterm Female Newborn: Case Report and Review of the Literature. Pediatr Med Chir 2014; 36:90. [DOI: 10.4081/pmc.2014.90] [Citation(s) in RCA: 9] [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] [Received: 11/24/2014] [Accepted: 11/24/2014] [Indexed: 11/23/2022] Open
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Zanella R, Zanghirati G, Cavicchioli R, Zanni L, Boccacci P, Bertero M, Vicidomini G. Towards real-time image deconvolution: application to confocal and STED microscopy. Sci Rep 2014; 3:2523. [PMID: 23982127 PMCID: PMC3755287 DOI: 10.1038/srep02523] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Accepted: 08/08/2013] [Indexed: 01/28/2023] Open
Abstract
Although deconvolution can improve the quality of any type of microscope, the high computational time required has so far limited its massive spreading. Here we demonstrate the ability of the scaled-gradient-projection (SGP) method to provide accelerated versions of the most used algorithms in microscopy. To achieve further increases in efficiency, we also consider implementations on graphic processing units (GPUs). We test the proposed algorithms both on synthetic and real data of confocal and STED microscopy. Combining the SGP method with the GPU implementation we achieve a speed-up factor from about a factor 25 to 690 (with respect the conventional algorithm). The excellent results obtained on STED microscopy images demonstrate the synergy between super-resolution techniques and image-deconvolution. Further, the real-time processing allows conserving one of the most important property of STED microscopy, i.e the ability to provide fast sub-diffraction resolution recordings.
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Affiliation(s)
- R Zanella
- Laboratorio delle Tecnologie per Terapie Avanzate, Università di Ferrara, Ferrara, Italy
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Bertero M, Kuzenko A. Risk assessment in patients with antiphospholipid antibodies. Minerva Med 2013; 104:639-648. [PMID: 24316917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Antiphospholipid syndrome (APS) is an autoimmune disorder characterized by the association of antiphospholipid antibodies (aPL) with thrombosis and/or pregnancy loss: classification criteria were defined in the updated international consensus held in Sidney in 2005. Vascular and obstetric manifestations display partially different pathogenetic mechanisms. Thrombosis develop as a result of local procoagulative changes upon triggers influence (second-hit theory). Pregnancy morbidity is thought to be dependent on placental thrombosis and complement activation. The laboratory tests include Lupus Anticoagulant (LA), a functional assay, and anticardiolipin (aCL) and anti-β2-glycoprotein I antibodies detected by solid phase enzyme-linked immunosorbent assay (ELISA). The LA testing is relatively standardized while there's still significant interlaboratory discrepancy in ELISA tests. Current APS criteria are under discussion: since for vascular and obstetric APS, different pathogenetic mechanisms have been shown, some criteria variation could also be contemplated. What is the weight of aPL antibodies in provoking thrombosis and which contribution could be expected from aPL per se is debated. As thrombosis is generally considered to be multi-factorial, each case needs a risk-stratified approach. Any primary prophylaxis, intensity and duration of secondary prophylaxis should take into account aPL profile, other cardiovascular risk factors and systemic autoimmune diseases associated. We look forward to the publication of recommendations of the leading experts in the field, developed during the recent 14th International Congress in Rio de Janeiro, Brazil.
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Affiliation(s)
- M Bertero
- Clinical Immunology AO Ordine Mauriziano, Turin, Italy -
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Dutto M, Dutto L, Bertero M, Goyffon M. Stings from Euscorpius flavicaudis (De Geer, 1778) (Scorpiones, Euscorpiidae) during pregnancy: a clinical case report. J Venom Anim Toxins Incl Trop Dis 2012. [DOI: 10.1590/s1678-91992012000400018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Bertero M, Boccacci P, Brakenhoff GJ, Malfanti F, Voort HTM. Three-dimensional image restoration and super-resolution in fluorescence confocal microscopy. J Microsc 2011. [DOI: 10.1111/j.1365-2818.1990.tb02942.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Young MR, Jiang SH, Davies RE, Walker JG, Pike ER, Bertero M. Experimental confirmation of super-resolution in coherent confocal scanning microscopy using optical masks. J Microsc 2011. [DOI: 10.1111/j.1365-2818.1992.tb04310.x] [Citation(s) in RCA: 12] [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: 11/30/2022]
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Affiliation(s)
- M. Bertero
- a Istituto di Scienze Fisiche dell'Università and Istituto Nazionale di Fisica Nucleare, Genova, Italy
| | - E.R. Pike
- b Royal Radar and Signals Establishment, Malvern, England
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Affiliation(s)
- M. Bertero
- a Istituto di Scienze Fisiche dell'Università and Istituto Nazionale di Fisica Nucleare, Genoa, Italy
| | - E.R. Pike
- b Royal Signals and Radar Establishment, Malvern, England
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Affiliation(s)
- M. Bertero
- a Istituto Matematico dell'Università and Istituto Nazionale di Fisica Nucleare, Genova, Italy
| | - P. Boccacci
- b Istituto di Mineralogia dell'Università, Genova, Italy
| | - E.R. Pike
- c Royal Signals and Radar Establishment, Malvern, England
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Affiliation(s)
- M. Bertero
- a Istituto Matematico dell'Universitá and Istituto Nationale di Fisica Nucleare, Genoa, Italy
| | - C. De Mol
- b Département de Mathématique, Université Libre de Bruxelles, Bruxelles, Belgium
| | - E.R. Pike
- c Royal Signals and Radar Establishment, Malvern, England
| | - J.G. Walker
- c Royal Signals and Radar Establishment, Malvern, England
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Affiliation(s)
- M. Bertero
- a Istituto Matematico dell'Università and Istituto Nazionale di Fisica Nucleare, Genoa, Italy
| | - C. De Mol
- b Département de Mathématique, Université Libre de Bruxelles, Brussels, Belgium
| | - F. Gori
- c Istituto di Fisica della Facoltà di Ingeneria, Università di Roma and Gruppo Nazionale di Struttura della Materia del C.N.R., Rome, Italy
| | - L. Ronchi
- d Istituto di Ricerca sulle Onde Elettromagnetiche del C.N.R., Florence, Italy
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Affiliation(s)
- M. Bertero
- a Istituto Matematico dell'Universitá, Genoa, Italy
| | | | - Pat Parker
- b Royal Signals and Radar Establishment, Malvern, England
| | - E.R. Pike
- b Royal Signals and Radar Establishment, Malvern, England
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Affiliation(s)
- M. Bertero
- a Instituto di Scienze Fisiche dell'Università and Istituto Nazionale di Fisica Nucleare, Genova, Italy
| | - V. Dovì
- b European Molecular Biology Laboratory, Heidelberg, F.R. Germany
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Affiliation(s)
- M. Bertero
- a Istituto di Scienze Fisiche dell'Università, Genova, Italy and Istituto Nazionale di Fisica Nucleare, Sezione di Genova, Italy
| | - G.A. Viano
- a Istituto di Scienze Fisiche dell'Università, Genova, Italy and Istituto Nazionale di Fisica Nucleare, Sezione di Genova, Italy
| | - C. de Mol
- b Département de Mathématique, Université Libre de Bruxelles, Belgium
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Bertero M, Viano G, Pasqualetti F, Ronchi L, Di Francia GT. The Inverse Scattering Problem in the Born Approximation and the Number of Degrees of Freedom. ACTA ACUST UNITED AC 2010. [DOI: 10.1080/713820374] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- M. Bertero
- a Istituto di Scienze Fisiche, Università di Genova, Italy
| | - G.A. Viano
- a Istituto di Scienze Fisiche, Università di Genova, Italy
| | - F. Pasqualetti
- b Istituto di Ricerca sulle Onde Elettromagnetiche of CNR, Firenze, Italy
| | - L. Ronchi
- b Istituto di Ricerca sulle Onde Elettromagnetiche of CNR, Firenze, Italy
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Dutto M, Bertero M. Traumatic myiasis from Sarcophaga (Bercaeal cruentata Meigen, 1826 (Diptera, Sarcophagidae) in a hospital environment: reporting of a clinical case following polytrauma. J Prev Med Hyg 2010; 51:50-52. [PMID: 20853677] [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: 05/29/2023]
Abstract
We present a case of cutaneous myiasis occurring in a hospital environment (nosocomial myiasis) in an patient with serious multiple traumas sustained in a motorcycle accident. The agent responsible for the myiasis was identified as Sarcophaga cruentata (Meigen 1826). The larvae found in the necrotic wound were removed and the necessary environmental measures were taken to avoid further infestation. Although nonocomial myiasis is a form of parasitosis already cited in the in literature, it is a rare event and worthy of attention to aid in identifying parasitosis in hospitalized subjects in order to expedite proper diagnosis and treatment.
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Affiliation(s)
- M Dutto
- Dermatology Division, Santa Croce and Carle Hospital, Cuneo, Italy.
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Dutto M, Dutto L, Scaglione N, Bertero M. Euscorpius (Scorpiones, Euscorpiidae): three cases of stings in northwestern Italy. J Venom Anim Toxins Incl Trop Dis 2010. [DOI: 10.1590/s1678-91992010000400018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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di Bonzo LV, Ferrero I, Cravanzola C, Mareschi K, Rustichell D, Novo E, Sanavio F, Cannito S, Zamara E, Bertero M, Davit A, Francica S, Novelli F, Colombatto S, Fagioli F, Parola M. Human mesenchymal stem cells as a two-edged sword in hepatic regenerative medicine: engraftment and hepatocyte differentiation versus profibrogenic potential. Gut 2008; 57:223-31. [PMID: 17639088 DOI: 10.1136/gut.2006.111617] [Citation(s) in RCA: 202] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS Mesenchymal stem cells from bone marrow (MSCs) may have the potential to differentiate in vitro and in vivo into hepatocytes. We investigated whether transplanted human MSCs (hMSCs) may engraft the liver of non-obese diabetic severe combined immuno-deficient (NOD/SCID) mice and differentiate into cells of hepatic lineage. METHODS Ex vivo expanded, highly purified and functionally active hMSCs from bone marrow were transplanted (caudal vein) in sublethally irradiated NOD/SCID mice that were either exposed or not to acute liver injury or submitted to a protocol of chronic injury (single or chronic intraperitoneal injection of CCl(4), respectively). Chimeric livers were analysed for expression of human transcripts and antigens. RESULTS Liver engraftment of cells of human origin was very low in normal and acutely injured NOD/SCID mice with significantly higher numbers found in chronically injured livers. However, hepatocellular differentiation was relatively rare, limited to a low number of cells (ranging from less than 0.1% to 0.23%) as confirmed by very low or not detectable levels of human transcripts for alpha-fetoprotein, CK18, CK19 and albumin in either normal or injured livers. Finally, a significant number of cells of human origin exhibited a myofibroblast-like morphology. CONCLUSIONS Transplanted hMSCs have the potential to migrate into normal and injured liver parenchyma, particularly under conditions of chronic injury, but differentiation into hepatocyte-like cells is a rare event and pro-fibrogenic potential of hMSC transplant should be not under-evaluated.
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Affiliation(s)
- L Valfrè di Bonzo
- Dip. Medicina e Oncologia Sperimentale, Scienze University of Torino, Torino, Italy
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Bertero M, Anconelli B, Boccacci P, Desiderà G, Carbillet M, Lanteri H. High-resolution image reconstruction: the case of the Large Binocular Telescope (LBT). ACTA ACUST UNITED AC 2006. [DOI: 10.1051/eas:2006124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Abstract
Super-resolution is a word used in different contexts but mainly in the case of methods aimed at improving the resolution of an optical instrument beyond the diffraction limit. Such a result may be achieved by means of specific instrumental techniques (such as, for instance, interferometry) or by means of a suitable processing of a digital image; in the latter case we will use the expression computational super-resolution (CSR). In this paper we describe the basic concepts underlying CSR without using the mathematics required for establishing its theoretical validity. The aim is to introduce a wide audience to this topic, to specify the situations where CSR is feasible and to emphasize the point that unlimited CSR is not possible.
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Affiliation(s)
- M Bertero
- INFM and DISI, University of Genova, Via Dodecaneso 35, Genova, Italy.
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Miyakawa M, Orikasa K, Bertero M, Boccacci P, Conte F, Piana M. Experimental validation of a linear model for data reduction in chirp-pulse microwave CT. IEEE Trans Med Imaging 2002; 21:385-395. [PMID: 12022626 DOI: 10.1109/tmi.2002.1000262] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Chirp-pulse microwave computerized tomography (CP-MCT) is an imaging modality developed at the Department of Biocybernetics, University of Niigata (Niigata, Japan), which intends to reduce the microwave-tomography problem to an X-ray-like situation. We have recently shown that data acquisition in CP-MCT can be described in terms of a linear model derived from scattering theory. In this paper, we validate this model by showing that the theoretically computed response function is in good agreement with the one obtained from a regularized multiple deconvolution of three data sets measured with the prototype of CP-MCT. Furthermore, the reliability of the model as far as image restoration in concerned, is tested in the case of space-invariant conditions by considering the reconstruction of simple on-axis cylindrical phantoms.
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Affiliation(s)
- M Miyakawa
- Department of Biocybernetics, Faculty of Engineering, Niigata University, Japan
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Abstract
Chirp-pulse microwave computed tomography (CP-MCT) is a technique for imaging the distribution of temperature variations inside biological tissues. Even if resolution and contrast are adequate to this purpose, a further improvement of image quality is desirable. In this paper, we discuss the blur of CP-MCT images and we propose a method for estimating the corresponding point spread function (PSF). To this purpose we use both a measured and a computed projection of a cylindrical phantom. We find a good agreement between the two cases. Finally the estimated PSF is used for deconvolving data corresponding to various kinds of cylindrical phantoms. We use an iterative nonlinear deconvolution method which assures nonnegative solutions and we demonstrate the improvement of image quality which can be obtained in such a way.
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Affiliation(s)
- M Bertero
- Dipartimento di Informatica e Scienze dell'Informazione, Università di Genova, Italy
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Cortese G, Fauciglietti P, Bertero M, Savoia P. [Lymphomatoid granulomatosis. Radiologic features of a case with lung and brain involvement]. Radiol Med 1997; 94:125-7. [PMID: 9424642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- G Cortese
- Servizio di Radiologia, Ospedale G. Bosco, Torino
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Bernengo MG, Doveil GC, Bertero M, Quaglino P, Fierro MT, Savoia P, Appino A, Colonna S. Low-dose integrated chemoimmuno-hormonotherapy with cisplatin, subcutaneous interleukin-2, alpha-interferon and tamoxifen for advanced metastatic melanoma--a pilot study. Melanoma Res 1996; 6:257-65. [PMID: 8819129 DOI: 10.1097/00008390-199606000-00009] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Recently, Khayat et al. reported that high-dose recombinant interleukin-2 (rIL-2) i.v. may induce tumour regressions in metastatic melanoma patients through an association with cisplatin (CDDP) and alpha-interferon (alpha-IFN). Treatment-related toxicities are, however, important. Previous studies have demonstrated that rIL-2 toxicity may be reduced through a subcutaneous injection. In order to evaluate the effectiveness of low subcutaneous rIL-2 doses in a chemoimmuno-hormonotherapeutic combination, 36 metastatic melanoma patients were treated with CDDP, rIL-2, alpha-IFN and tamoxifen (TAM). The overall response rate was 47.2%: five patients had complete response (14%), 12 partial response (33%) and 13 stable disease (36%). Median response duration was 6.4 months (range: 2-29+). Median overall survival was 10 months (range: 3-36+). The CDDP/rIL-2/alpha-IFN/TAM regimen was effective both on soft tissue and visceral metastases. Toxicity was low and patient management did not require an intensive care unit. A statistically significant increase in both percentage and absolute values of lymphocytes, eosinophils, CD3+/CD4+, CD25+, CD16/56+ and HLA-DR+ cells was found in all patients after two treatment courses. This study shows that lower doses of subcutaneous rIL-2, as well as CDDP and alpha-IFN, associated with TAM, may have similar anticancer efficacy with respect to Khayat's schedule but lower toxicity.
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Affiliation(s)
- M G Bernengo
- Clinica Dermatologica dell'Università di Torino, Italy
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Doveil GC, Fierro MT, Novelli M, Appino A, Bertero M, Quaglino P, Bernengo MG. Adjuvant therapy of stage IIIb melanoma with interferon alfa-2b: clinical and immunological relevance. Dermatology 1995; 191:234-9. [PMID: 8534942 DOI: 10.1159/000246551] [Citation(s) in RCA: 9] [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: 01/31/2023] Open
Abstract
BACKGROUND The poor prognosis of stage IIIb melanoma (5-year survival: 36%) shows the need for effective adjuvant therapy to prolong disease-free survival. OBJECTIVE The feasibility and efficacy of interferon alfa-2b (IFN-alpha) therapy in stage IIIb melanoma patients was investigated. METHODS alpha-IFN was given at a dose of 3 MU i.m. three times a week to 50 patients. Clinical and immunological controls were carried out. RESULTS The median follow-up was 43 months (range 5-84). Median survival was 43 months and median disease-free survival 39 months. Overall 5-year survival (62%) was higher than that reported in the literature to date. A significant increase of circulating CD56+ and DR+ lymphocytes after therapy was more evident in disease-free patients than in those with progressing disease. CONCLUSIONS Adjuvant IFN-alpha therapy in stage IIIb melanoma patients is well tolerated and seems to increase survival. However, multicenter randomized trials are needed to confirm these preliminary findings.
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Affiliation(s)
- G C Doveil
- I. Clinica Dermatologica dell'Università di Torino, Italia
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Abstract
The expression of some adhesion molecules of the integrin family and their ligands was investigated in skin biopsies from a patient with lymphomatoid granulomatosis (LG), who at onset presented cutaneous lesions followed by lung and brain involvement. The angiocentric and angiodestructive skin infiltrate consisted mainly of T helper 'memory' cells (CD2+, CD3+, CD4+, CD5+, CD7+, CD45RO+) with a variable expression of activation antigens (CD25-, CD38+, CD71+, HLA-DR+) and 20% Ki67+ (nearly all atypical cells). T cells highly expressed alpha 3 beta 1 and alpha 5 beta 1 integrins, along with integrins of the beta 2 family. A modification of the expression pattern in laminin and collagen IV and an increased expression of tenascin and fibronectin were also observed.
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Affiliation(s)
- P Savoia
- Clinica Dermatologica dell'Università degli Studi di Torino, Italia
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Abstract
BACKGROUND Mantle zone lymphoma (MZL) is a B-cell proliferation regarded as the follicular variant of intermediate lymphocytic lymphoma (ILL). Neoplastic small lymphoid cells proliferate as wide mantles around atrophic centers of benign appearance. OBJECTIVE The clinical, histologic, and immunohistochemical features of four cases of MZL, heralded by cutaneous lesions, are described and correlated with the lymph node pattern. RESULTS All specimens showed extensive nodules in the reticular dermis invading the subcutaneous tissue. They were mainly composed of a proliferation of small lymphocytes with slightly irregular nuclear contours and clumped chromatin, forming wide mantles around small atrophic germinal centers. Serial biopsy specimens in case 1 revealed evolution of the skin lesions from pseudolymphoma into MZL. Their immunohistochemistry was similar to that of lymph nodes and showed that the neoplastic cells were CD5+, CD20+, CD22+, CD25+, CD74+, Leu-8+, HLA-DR+, IgM+, IgD+ with restriction for the lambda light chain, CD10-, and CD71-, whereas the germinal center cells were polyclonal. In three cases many CD38+, PCA-1+ plasma cells were present both in the grenz zone and in bordering neoplastic nodules. The clinical course was chronic. The only death occurred from unrelated causes; one patient is still alive 17 years after onset. CONCLUSION Skin lesions may be the only manifestation of MZL for an extended period. The differentiation between pseudolymphoma and other lymphoma subtypes is based not only on the histologic and cytologic features but also on the architecture, followed by immunohistochemical confirmation.
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Affiliation(s)
- M Bertero
- Clinica Dermatologica I, Università degli Studi di Torino, Italy
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Fierro MT, Bertero M, Novelli M, Appino A, Doveil GC, Colonna S, Bernengo MG. Therapy for metastatic melanoma: effective combination of dacarbazine, carmustine, cisplatin and tamoxifen. Melanoma Res 1993; 3:127-31. [PMID: 8518551] [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: 01/31/2023]
Abstract
Thirty-two patients with metastatic melanoma received combination chemotherapy and hormonal therapy. Treatment included Carmustine, Cisplatin, Dacarbazine and Tamoxifen (BCDT). The overall response rate was 47%: five patients had a complete response (16%), 10 patients had a partial response (31%) and two had no response (6%). The median survival for responders was 10 months (range 2-20). The BCDT regimen was equally effective against soft tissue and visceral metastases. Neither survival or response rate was modified by pretreatment with alpha-interferon (alpha-IFN). In agreement with the results of a recent randomized trial comparing the efficacy of Dacarbazine with that of Dacarbazine plus Tamoxifen, a better survival was found in women than in men: although the response rate was identical (47%), the median duration of response was higher for women. A fall in serum soluble IL-2 receptor (sIL-2R) levels after therapy was seen in responding patients, confirming the usefulness of this parameter in monitoring disease evolution.
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Affiliation(s)
- M T Fierro
- Clinica Dermatologica, Università di Torino, Italy
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Abstract
BACKGROUND Response to the treatment of Sézary syndrome (a cutaneous T-cell lymphoma) is poor. Since patients with this syndrome are elderly, aggressive chemotherapy is poorly tolerated and deep immunodepression may result in fatal opportunistic infections. Immunomodulating therapy seems important in the management of Sézary syndrome. PURPOSE In a pilot study, we assessed the efficacy of thymopentin (TP-5), a synthetic pentapeptide, correlating clinical responses to the histologic and immunologic effects of the drug. METHODS Twenty Sézary syndrome patients received 50 mg TP-5 intravenously three times a week for a mean time of 16.3 months. Skin and lymph node histology and immunohistochemistry, circulating lymphoid cell subpopulations, and soluble interleukin-2 receptors were evaluated before treatment and during follow-up. RESULTS Eight complete remissions and seven partial remissions were obtained (75%). No change was observed in three patients, and disease progression was observed in two patients. The median duration of response was 22 months (complete remission, 25.5 months; partial remission, 14 months). Four-year survival probability was 53.9%. The responses were obtained when circulating Sézary cells were less than 2600/mm3. A significant reduction of CD4+ cells paralleled a CD8+ cell increase. An increase in NK cells (CD16+ and CD56+) was accompanied by significantly longer survival. Serum soluble interleukin-2 receptor values were a useful monitor of the clinical course and treatment. Loss of epidermotropism, reduction of Langherhans' cells, and HLA-DR+ keratinocytes were found. CONCLUSIONS TP-5 is a potentially useful agent in the treatment of a subgroup of patients with Sézary syndrome; its activity seems to be mediated by an effect on a normal NK cell-like subpopulation. IMPLICATIONS The biological and clinical role of this therapy in combination with conventional treatments will be the subject of future investigations.
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Affiliation(s)
- M G Bernengo
- Clinica Dermatologica I, Università degli Studi di Torino, Turin, Italy
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Fierro MT, Lisa F, Novelli M, Bertero M, Bernengo MG. Soluble interleukin-2 receptor, CD4 and CD8 levels in melanoma: a longitudinal study. Dermatology 1992; 184:182-9. [PMID: 1392109 DOI: 10.1159/000247537] [Citation(s) in RCA: 8] [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: 12/26/2022] Open
Abstract
Serum levels of soluble(s) interleukin-2 receptor (IL-2R), sCD4 and SCD8 were analysed in 227 melanoma patients, using a sandwich enzyme immunoassay. Different stages of the disease were considered, and a longitudinal study with a 2-year follow-up was performed. Mean values of sIL-2R were significantly higher than in normal controls in all stages and correlated with the disease progression. sCD8 increases with stage progression were less striking, while sCD4 values were always in the normal range. We conclude that sIL-2R measurement is a useful clinical parameter in monitoring disease evolution in melanoma.
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Affiliation(s)
- M T Fierro
- Clinica Dermatologica I, dell'Università di Torino, Italia
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Bertero M, Brianzi P, Pike ER, de Villiers G, Lan KH, Ostrowsky N. Light scattering polydispersity analysis of molecular diffusion by Laplace transform inversion in weighted spaces. J Chem Phys 1985. [DOI: 10.1063/1.448430] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.7] [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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Abstract
Using the regularization theory for improperly posed problems, we discuss object restoration beyond the diffraction limit in the presence of noise. Only the case of one-dimensional coherent objects is considered. We focus attention n the estimation of the error on the restored objects, and we show that, in most realistic cases, it is at best proportional to an inverse power of |In epsilon|, where epsilon is the error on the data (logarithmic continuity). Finally we suggest the extension of this result to other inverse problems.
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