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Mosquera-Belalcazar ES, Domingues AA, Coppini A, Luzzatto L, Kiszewski AE. Blue rubber bleb nevus syndrome and multiple glomangiomas: report of two cases highlighting the importance of the histological analysis. An Bras Dermatol 2023; 98:410-414. [PMID: 36803561 PMCID: PMC10173078 DOI: 10.1016/j.abd.2022.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 04/27/2022] [Accepted: 04/27/2022] [Indexed: 02/19/2023] Open
Affiliation(s)
- Elsa Stella Mosquera-Belalcazar
- Service of Dermatology, Santa Casa de Misericórdia de Porto Alegre, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil
| | - Aline Alves Domingues
- Service of Dermatology, Santa Casa de Misericórdia de Porto Alegre, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil
| | - Alessandra Coppini
- Service of Dermatology, Santa Casa de Misericórdia de Porto Alegre, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil
| | - Laura Luzzatto
- Department of Pathology, Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, RS, Brazil
| | - Ana Elisa Kiszewski
- Service of Dermatology, Santa Casa de Misericórdia de Porto Alegre, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil; Department of Internal Medicine, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil; Pediatric Dermatology Unit, Dermatology Service, Santa Casa de Misericórdia de Porto Alegre, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil.
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2
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Belalcazar ESM, Dupont L, Luzzatto L, Souza PRM. A Large Abdominal Skin Ulcer. Skinmed 2022; 20:62-63. [PMID: 35435827] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- Elsa Stella Mosquera Belalcazar
- Department of Dermatology, Hospital Santa Casa de Misericórdia de Porto Alegre, RS, Brazil; and the Universidade Federal de Ciências da Saúde de Porto Alegre, RS, Brazil;
| | - Leticia Dupont
- Department of Dermatology, Hospital Santa Casa de Misericórdia de Porto Alegre, RS, Brazil; and the Universidade Federal de Ciências da Saúde de Porto Alegre, RS, Brazil
| | - Laura Luzzatto
- Department of Dermatology, Hospital Santa Casa de Misericórdia de Porto Alegre, RS, Brazil; and the Universidade Federal de Ciências da Saúde de Porto Alegre, RS, Brazil
- Department of Pathology, Hospital Santa Casa de Misericórdia de Porto Alegre, RS, Brazil; and the Universidade Federal de Ciências da Saúde de Porto Alegre, RS, Brazil
| | - Paulo Ricardo Martins Souza
- Department of Dermatology, Hospital Santa Casa de Misericórdia de Porto Alegre, RS, Brazil; and the Universidade Federal de Ciências da Saúde de Porto Alegre, RS, Brazil
- Hospital Santa Casa de Misericórdia de Porto Alegre, RS, Brazil; and the Universidade Federal de Ciências da Saúde de Porto Alegre, RS, Brazil
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3
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Pagani DM, Pacheco FB, Venier NAB, Silva IDL, Richter GK, Luzzatto L, Scroferneker ML. Atypical presentation of secondary syphilis: annular lesions in an elderly patient. Rev Inst Med Trop Sao Paulo 2021; 63:e68. [PMID: 34495265 PMCID: PMC8428879 DOI: 10.1590/s1678-9946202163068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 08/03/2021] [Indexed: 11/21/2022] Open
Abstract
Syphilis is a chronic bacterial sexually transmitted infectious disease caused by Treponema pallidum. Different age groups are affected by heterogeneous clinical forms of the disease. We report a case of atypical secondary syphilis in an elderly patient with diffuse annular erythematous lesions on the chest, back, upper and lower limbs diagnosed by histopathological, immunohistochemical and serological tests.
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Affiliation(s)
- Danielle Machado Pagani
- Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação
em Microbiologia Agrícola e do Ambiente, Porto Alegre, Rio Grande do Sul,
Brazil
| | - Fernanda Brandão Pacheco
- Universidade Federal de Ciências da Saúde de Porto Alegre, Porto
Alegre, Rio Grande do Sul, Brazil
- Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Rio Grande
do Sul, Brazil
| | - Natália Andressa Buss Venier
- Universidade Federal de Ciências da Saúde de Porto Alegre, Porto
Alegre, Rio Grande do Sul, Brazil
- Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Rio Grande
do Sul, Brazil
| | - Isadora da Luz Silva
- Universidade Federal de Ciências da Saúde de Porto Alegre, Porto
Alegre, Rio Grande do Sul, Brazil
- Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Rio Grande
do Sul, Brazil
| | | | - Laura Luzzatto
- Universidade Federal de Ciências da Saúde de Porto Alegre, Porto
Alegre, Rio Grande do Sul, Brazil
- Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Rio Grande
do Sul, Brazil
| | - Maria Lúcia Scroferneker
- Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação
em Medicina: Ciências Médicas, Porto Alegre, Rio Grande do Sul, Brazil
- Universidade Federal do Rio Grande do Sul, Departamento de
Microbiologia, Imunologia e Parasitologia, Porto Alegre, Rio Grande do Sul,
Brazil
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4
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Bevilaqua M, Ribolli GB, Luzzatto L, Fernandes JC, Pasqualotto AC, Bonamigo RR. SDRIFE-like rash in COVID-19 patient: drug reaction or another cutaneous manifestation of SARS-CoV-2? Int J Dermatol 2021; 60:884-885. [PMID: 33719051 PMCID: PMC8251419 DOI: 10.1111/ijd.15537] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 01/06/2021] [Accepted: 02/25/2021] [Indexed: 12/31/2022]
Affiliation(s)
- Mariele Bevilaqua
- Irmandade Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Brazil
| | - Gustavo B Ribolli
- Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Laura Luzzatto
- Irmandade Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Brazil
| | | | - Alessandro C Pasqualotto
- Irmandade Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Brazil.,Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Renan R Bonamigo
- Irmandade Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Brazil.,Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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5
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Piriz AJ, Welter EDQ, Luzzatto L. Xantogranuloma múltiplo do adulto: relato de caso de tratamento exitoso com laser CO2. S&CD 2021. [DOI: 10.5935/scd1984-8773.20201242515] [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: 11/20/2022] Open
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6
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Balconi SN, Lopes NT, Luzzatto L, Bonamigo RR. Detection of SARS-CoV-2 in a case of DRESS by sulfasalazine: could there be a relationship with clinical importance? Int J Dermatol 2020; 60:125-126. [PMID: 33231286 PMCID: PMC7753828 DOI: 10.1111/ijd.15316] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 10/21/2020] [Accepted: 10/30/2020] [Indexed: 12/17/2022]
Affiliation(s)
- Sindy N Balconi
- Dermatology Service of Santa Casa de Misericórdia de Porto Alegre (ISCMPA, UFCSPA), Porto Alegre, RS, Brazil
| | - Natane T Lopes
- Dermatology Service of Ambulatório de Dermatologia Sanitária (ADS), Porto Alegre, RS, Brazil
| | - Laura Luzzatto
- Dermatology Service of Santa Casa de Misericórdia de Porto Alegre (ISCMPA, UFCSPA), Porto Alegre, RS, Brazil
| | - Renan R Bonamigo
- Dermatology Service of Santa Casa de Misericórdia de Porto Alegre (ISCMPA, UFCSPA), Porto Alegre, RS, Brazil.,Dermatology Service of Ambulatório de Dermatologia Sanitária (ADS), Porto Alegre, RS, Brazil.,Medical School of Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
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7
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Souza MCC, Martins PHT, Vivian A, Luzzatto L. Diffuse normolipemic plane xanthoma and hepatitis C: chance? An Bras Dermatol 2020; 95:261-262. [PMID: 32146013 PMCID: PMC7175400 DOI: 10.1016/j.abd.2019.08.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Accepted: 08/18/2019] [Indexed: 11/30/2022] Open
Affiliation(s)
| | | | - Analú Vivian
- Department of Dermatology, Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, RS, Brazil
| | - Laura Luzzatto
- Department of Dermatology, Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, RS, Brazil
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8
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Espanhol CM, Recuero JK, Pagani DM, Ribeiro AC, Vettorato G, Duquia RP, Luzzatto L, Scroferneker ML. Cutaneous phaeohyphomycosis caused by Exophiala xenobiotica: A case report. Med Mycol Case Rep 2020; 27:39-41. [PMID: 31908912 PMCID: PMC6940718 DOI: 10.1016/j.mmcr.2019.12.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 11/04/2019] [Accepted: 12/02/2019] [Indexed: 11/15/2022] Open
Abstract
We report a case of phaeohyphomycosis that affected the leg of a 45-year-old Brazilian man, car mechanic and renal transplanted. The direct mycological examination evidenced dematiaceous septated hyphae. The pathogenic fungal species was identified as Exophiala xenobiotica. Antifungal activity in vitro revealed terbinafine as the best antifungal. For treatment, it was chosen surgical excision of the entire lesion and used systemic itraconazole. Phaeohyphomycosis caused by Exophiala xenobiotica is extremely rare and is closely related to transplant patients.
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Affiliation(s)
- Clarissa Mitri Espanhol
- Department of Dermatology of the Hospital Santa Casa de Misericórdia de Porto Alegre, Rua Prof. Annes Dias, 285, Porto Alegre, CEP:90020-090, Brazil
| | - Júlia Kanaan Recuero
- Department of Dermatology of the Hospital Santa Casa de Misericórdia de Porto Alegre, Rua Prof. Annes Dias, 285, Porto Alegre, CEP:90020-090, Brazil
| | - Danielle Machado Pagani
- Postgraduate Program in Agricultural and Environmental Microbiology, Federal University of Rio Grande do Sul.Rua Sarmento Leite, 500, Sala 325, Porto Alegre, Rio Grande do Sul, CEP: 90050-170, Brazil
| | - Amanda Carvalho Ribeiro
- Faculty of Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Avenida Ipiranga, 2752, CEP: 90610-000, Brazil
| | - Gerson Vettorato
- Department of Dermatology of the Hospital Santa Casa de Misericórdia de Porto Alegre, Rua Prof. Annes Dias, 285, Porto Alegre, CEP:90020-090, Brazil
| | - Rodrigo Pereira Duquia
- Department of Dermatology of the Hospital Santa Casa de Misericórdia de Porto Alegre, Rua Prof. Annes Dias, 285, Porto Alegre, CEP:90020-090, Brazil
| | - Laura Luzzatto
- Department of Microbiology, ICBS, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500, Sala 325, Porto Alegre, Rio Grande do Sul, CEP: 90050-170, Brazil
| | - Maria Lúcia Scroferneker
- Department of Microbiology, ICBS, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500, Sala 325, Porto Alegre, Rio Grande do Sul, CEP: 90050-170, Brazil
- Corresponding author. Department of Microbiology, ICBS, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500, Room, 325, Porto Alegre, CEP: 90050-170, Brazil.
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9
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Bonamigo RR, Luzzatto L, Balconi SN, Silva IDL, Magro ACD. Agressividade tumoral óculo-facial por carcinoma epidermoide moderadamente diferenciado sob imunocompetência sistêmica. S&CD 2020. [DOI: 10.5935/scd1984-8773.20201242554] [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: 11/20/2022] Open
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10
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Martins PHT, Venier NAB, Luzzatto L, Cafrune FE. Exérese de carcinoma espinocelular e reconstrução de lábio superior com técnica de duplo avanço. S&CD 2020. [DOI: 10.5935/scd1984-8773.20201241478] [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: 11/20/2022] Open
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11
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Santos MF, Souza MEVD, Luzzatto L, Albarello L, Minotto R. Onicomatricoma gigante: relato de um caso. S&CD 2020. [DOI: 10.5935/scd1984-8773.20201231476] [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: 11/20/2022] Open
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12
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Martins PHT, Dallagnese G, Luzzatto L, Dantas ML. Case for diagnosis. Diffuse ulcerated nodular lesions. An Bras Dermatol 2019; 94:615-617. [PMID: 31777366 PMCID: PMC6857547 DOI: 10.1016/j.abd.2019.09.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 11/15/2018] [Indexed: 11/28/2022] Open
Abstract
Langerhans cell histiocytosis is a rare clonal proliferative disease, characterized by the infiltration of one or multiple organs by histiocytes. Due to the diversity of signs and symptoms, the diagnosis of this disease is often late. The estimated incidence in adults is one to two cases per million, but the disease is probably underdiagnosed in this population. This report presents a case of disseminated Langerhans cell histiocytosis. The authors highlight the most characteristic aspects of this rare and heterogeneous disease, which usually presents as a challenging clinical diagnosis.
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Affiliation(s)
- Paulo Henrique Teixeira Martins
- Department of Dermatology, Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, RS, Brazil; Department of Dermatology, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil.
| | - Gabriela Dallagnese
- Department of Dermatology, Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, RS, Brazil; Department of Dermatology, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil
| | - Laura Luzzatto
- Department of Dermatology, Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, RS, Brazil; Department of Dermatology, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil
| | - Manuela Lima Dantas
- Department of Dermatology, Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, RS, Brazil; Department of Dermatology, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil
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13
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Magnani C, Pastore G, Luzzatto L, Terracini B. Parental Occupation and Other Environmental Factors in the Etiology of Leukemias and Non-Hodgkin'S Lymphomas in Childhood: A Case-Control Study. Tumori 2018; 76:413-9. [PMID: 2256184 DOI: 10.1177/030089169007600501] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We report the results of a hospital-based, case-control study on acute lymphocytic leukemia (ALL), acute non-lympocytic leukemia (AnLL) and non-Hodgkin lymphoma (NHL) in childhood. The study was conducted from 1981 to 1984 in Turin (Italy). One hundred and forty-two children with ALL, 22 with AnLL and 19 with NHL were included, as well as 307 controls. Information on parental smoking habits, parental occupation, ionizing radiation and childhood diseases were collected using a standard questionnaire during a personal interview of the relative attending the child in the hospital. The odds ratios for antenatal diagnostic radiation were 1.1 (NS) for ALL and 2.4 (NS) for AnLL. No association was found with diseases in childhood. Paternal and maternal smoking habits were similar for ALL cases and controls. Both maternal and paternal smoking were associated with NHL: for paternal smoking, odds ratios were around 5, but without a correlation with number of cigarettes. Positive associations observed with maternal employment were: ALL with teacher and cleaner; AnLL and textile worker; NHL and baker. Corresponding association with paternal jobs were: ALL with clerks, farmers and employment in office equipment production; AnLL and workers in building, tire or textile industries; NHL and lorry drivers, workers in the building or in the wood and furniture industry.
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Affiliation(s)
- C Magnani
- Cancer Epidemiology Unit, University of Torino, Italy
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14
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Abstract
A hospital-based case-control study on soft tissue sarcomas (STS) was conducted in 1983-84 in Torino and in Padova (Italy). Cases (36 children with rhabdomyosarcoma (RMS) and 16 non RMS-STS) were compared to 326 controls. Histories of parental smoking habits and occupations, parental and children's exposure to ionizing radiation, children's diseases and some other variables were collected through interviews to the relatives attending the child in the hospital. A non statistically significant association was observed with both maternal age above 30 at child's birth (STS: OR = 1.5, C.I. = 0.8-2.9; RMS: OR = 1.9, C.I. = 0.9-4.0) and « in utero » exposure to diagnostic radiation (STS: OR = 1.9, C.I. = 0.5-6.5, based on 4 cases). No association was found with children's previous diseases. Paternal and maternal smoking habits were similar for RMS and STS cases and controls. Some positive associations with either maternal or paternal occupational histories were identified. They are difficult to interpret in view of the large number of comparisons and small absolute figures. They included maternal employment as medical doctor and nurse, farmer, textile worker and machine tool operator. An association was also observed with paternal occupation as butcher, building worker or employment in the production of domestic appliances. One case and no controls reported a maternal aunt affected by breast cancer.
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Affiliation(s)
- C Magnani
- Cancer Epidemiology Unit, University of Torino, Italy
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15
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Pastore G, Mosso ML, Magnani C, Luzzatto L, Bianchi M, Terracini B. Physical Impairment and Social Life, Goals among Adult Long-term Survivors of Childhood Cancer: A Population-based Study from the Childhood Cancer Registry of Piedmont, Italy. Tumori 2018; 87:372-8. [PMID: 11989588 DOI: 10.1177/030089160108700603] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Aims and Background The study describes the health status and the attainment of life goals in the adult survivors of childhood cancer recorded at the Childhood Cancer Registry of Piedmont. Methods and Study Design A postal questionnaire was sent to the general practitioner of the 690 cases born before 1976 and alive in 1991 after at least 5 years from diagnosis. The answer was received for 485 (72.9%) included in the analyses. Items in the questionnaire were: sequelae related to cancer and its treatment, health-related quality of life (according to Bloom's criteria), educational level attained, and employment status. Results Vital and marital status were obtained for all 690 cases at the offices of the town of residence. No medical condition was reported for 309 cases (63.7%). The overall proportion with a high school or university education was compared to corresponding figures for Piedmont in 1991, adjusted by age, and was as high as in the general population. Similar results are observed for occupation. Patients of both genders were married less than expected. Patients with leukemia (112 cases), non-Hodgkin's lymphoma (34) or Hodgkin's lymphoma (52) were reported to have the highest quality of life. In contrast, patients with tumors of the central nervous system (151) had the highest frequency of sequelae and the lowest score for health-related quality of life. They also presented the lowest educational achievement, the lowest proportion of employment and, among males, the lowest frequency of marriage. Conclusions Our study shows a good social adjustment of adult survivors from childhood cancer, with the exception of central nervous system tumors. From the methodologic point of view, the present study shows the feasibility of surveillance surveys on health-related quality of life with the contribution of general practitioners.
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Affiliation(s)
- G Pastore
- Childhood Cancer Registry of Piedmont, Cancer Epidemiology Unit of the Centre for Cancer Epidemiology and Prevention, CPO Piedmont, San Giovanni Hospital, Turin, Italy
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16
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Luzzatto L, Loupakis F. Comprehensive Cancer Care Networks: A realistic model for optimising outcomes and minimising inequalities. Eur J Public Health 2016. [DOI: 10.1093/eurpub/ckw172.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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17
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Teixeira KAM, Garbin G, Luzzatto L, Eidt LM, Bonamigo RR. Cutaneous tissue expressions of matrix metalloproteinase 2 and tissue inhibitor of metalloproteinase 2 are associated with a high degree of disability at diagnosis of hanseniasis. Int J Dermatol 2015. [PMID: 26206413 DOI: 10.1111/ijd.12678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kelly A M Teixeira
- Postgraduate Program in Pathology of Federal University of Health Sciences of Porto Alegre, Brazil
| | - Gabriela Garbin
- Dermatology Department of Clinical Hospital, Porto Alegre, Brazil
| | | | | | - Renan R Bonamigo
- Postgraduate Program in Pathology of Federal University of Health Sciences of Porto Alegre, Brazil.,Health Department of Rio Grande do Sul State, Brazil
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18
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Rocha CRMD, Grazziotin TC, Rey MCW, Luzzatto L, Bonamigo RR. Congenital agminated melanocytic nevus--case report. An Bras Dermatol 2014; 88:170-2. [PMID: 24346910 PMCID: PMC3875981 DOI: 10.1590/abd1806-4841.20132137] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Accepted: 11/07/2012] [Indexed: 11/21/2022] Open
Abstract
Agminated nevus is a cluster group of melanocytic nevi confined to a localized area of the body. There are many pigmented lesions described in the literature as agminated, such as blue nevi, multiple lentigines and Spitz nevi, but only a few cases of congenital agminated melanocytic nevi have been described. We report a case of a male child who presented with congenital agminated nevi, emphasizing the importance of physical examination, dermoscopy, histopathological evaluation, differential diagnosis and follow up to rule out the possibility of dysplastic or malignant changes.
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Affiliation(s)
| | | | | | - Laura Luzzatto
- Universidade Federal de Ciências da Saúde de Porto Alegre, Dermatology Service, Porto AlegreRS, Brazil
| | - Renan Rangel Bonamigo
- Universidade Federal de Ciências da Saúde de Porto Alegre, Dermatology Service, Porto AlegreRS, Brazil
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Relling MV, McDonagh EM, Chang T, Caudle KE, McLeod HL, Haidar CE, Klein T, Luzzatto L. Clinical Pharmacogenetics Implementation Consortium (CPIC) guidelines for rasburicase therapy in the context of G6PD deficiency genotype. Clin Pharmacol Ther 2014; 96:169-74. [PMID: 24787449 DOI: 10.1038/clpt.2014.97] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Accepted: 04/27/2014] [Indexed: 02/02/2023]
Abstract
Glucose-6-phosphate dehydrogenase (G6PD) deficiency is associated with development of acute hemolytic anemia (AHA) induced by a number of drugs. We provide guidance as to which G6PD genotypes are associated with G6PD deficiency in males and females. Rasburicase is contraindicated in G6PD-deficient patients due to the risk of AHA and possibly methemoglobinemia. Unless preemptive genotyping has established a positive diagnosis of G6PD deficiency, quantitative enzyme assay remains the mainstay of screening prior to rasburicase use. The purpose of this article is to help interpret the results of clinical G6PD genotype tests so that they can guide the use of rasburicase. Detailed guidelines on other aspects of the use of rasburicase, including analyses of cost-effectiveness, are beyond the scope of this document. Clinical Pharmacogenetics Implementation Consortium (CPIC) guidelines are published and updated periodically on https://www.pharmgkb.org/page/cpic to reflect new developments in the field.
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Affiliation(s)
- M V Relling
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - E M McDonagh
- Department of Genetics, Stanford University, Stanford, California, USA
| | - T Chang
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - K E Caudle
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - H L McLeod
- Personalized Medicine Institute, Moffitt Cancer Center, Tampa, Florida, USA
| | - C E Haidar
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - T Klein
- Department of Genetics, Stanford University, Stanford, California, USA
| | - L Luzzatto
- Department of Hematology, Istituto Toscano Tumori, Firenze, Italy
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Caldarella A, Amunni G, Angiolini C, Crocetti E, Di Costanzo F, Di Leo A, Giusti F, Pegna AL, Mantellini P, Luzzatto L, Paci E. Feasibility of evaluating quality cancer care using registry data and electronic health records: a population-based study. Int J Qual Health Care 2012; 24:411-8. [DOI: 10.1093/intqhc/mzs020] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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21
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Brutti CS, Artus G, Luzzatto L, Bonamigo RR, Balconi SN, Vettorato R. Crusted rosacea-like demodicidosis in an HIV-positive female. J Am Acad Dermatol 2011; 65:e131-e132. [PMID: 21920237 DOI: 10.1016/j.jaad.2011.05.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2011] [Revised: 05/03/2011] [Accepted: 05/09/2011] [Indexed: 10/17/2022]
Affiliation(s)
- Catiussa Spode Brutti
- Department of Dermatology, Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil.
| | - Gabriela Artus
- Department of Dermatology, Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil
| | - Laura Luzzatto
- Department of Dermatology, Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil
| | - Renan Rangel Bonamigo
- Department of Dermatology, Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil
| | - Sindy Natalia Balconi
- Department of Dermatology, Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil
| | - Rodrigo Vettorato
- Department of Dermatology, Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil
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22
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Frey MN, Bonamigo RR, Luzzatto L, Machado RB, Seidel GB. Case for diagnosis. An Bras Dermatol 2010; 85:561-3. [PMID: 20944922 DOI: 10.1590/s0365-05962010000400023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2010] [Indexed: 11/21/2022] Open
Abstract
Lichen nitidus is a rare dermatosis, characterized by round, skin-colored papules whose size varies between 1-2 mm and are generally asymptomatic. It does not have predilection for gender or race, affecting mainly children and young adults. Its clinical course is unpredictable, but most cases tend to spontaneously regress years after the onset of the disease. Lesions are often localized, but rare reports of disseminated disease exist.
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Bonaccorsi L, Nesi G, Nuti F, Paglierani M, Krausz C, Masieri L, Serni S, Proietti-Pannunzi L, Fang Y, Jhanwar SC, Orlando C, Carini M, Forti G, Baldi E, Luzzatto L. Persistence of expression of the TMPRSS2:ERG fusion gene after pre-surgery androgen ablation may be associated with early prostate specific antigen relapse of prostate cancer: preliminary results. J Endocrinol Invest 2009; 32:590-6. [PMID: 19494719 DOI: 10.1007/bf03346514] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND The recently identified TMPRSS2: ERG fusion gene is a candidate oncogene for prostate cancer (PCa). SUBJECTS AND METHODS We have tested for the presence of this gene in tumor samples from 84 patients who had radical prostatectomy in 1998-2000. Sixty patients (group A) had surgery only; 24 patients (group B) received androgen ablation therapy for 3 months before surgery. The occurrence of the rearrangement was evaluated by RT-PCR and by fluorescent in situ hybridization analysis. RESULTS A TMPRSS2:ERG fusion gene was present and expressed, as demonstrated by RT-PCR, in 84% of patients in group A and in 54% of patients in group B (p=0.01). The presence of TMPRSS2:ERG transcripts and the levels of ERG RNA, measured by quantitative Real Time-PCR, did not correlate significantly with clinical and pathologic characteristics of the tumors. In patients of group A, but not in those of group B, ERG expression showed a negative correlation with the Gleason score (p=0.0001). Histochemical analysis showed that ERG expression is limited to tumor cells, and in group A patients (but not in group B patients) it is limited to those glands that express TMPRSS2:ERG. CONCLUSION The lower proportion of patients expressing TMPRSS2: ERG in group B suggests that androgen ablation inhibits the expression of TMPRSS2:ERG. Moreover, in group B, but not in group A, patients with expression of the fusion gene had earlier prostate specific antigen recurrence (p=0.007). Although preliminary, the data indicate that tumors in which pre-surgery androgen ablation fails to suppress expression of the fusion gene have a higher risk of recurrence.
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Affiliation(s)
- L Bonaccorsi
- Unit of Andrology, Department of Clinical Physiopathology, University of Florence, Florence, Italy.
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Foroni L, Foldi J, Matutes E, Catovsky D, O'Connor NJ, Baer R, Forster A, Rabbitts TH, Luzzatto L. α, β and γ T-cell receptor genes: rearrangements correlate with haematological phenotype in T cell leukaemias. Br J Haematol 2008. [DOI: 10.1111/j.1365-2141.1987.00307.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] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
A family is described in which the father and son had erythrocytosis associated with a normal Hb oxygen affinity. Growth of erythroid colonies in vitro (BFU-E) exhibited normal erythropoietin dependence. In the son there was an enlarged erythroid precursor compartment, while the father (who had been treated by busulphan) showed marked reduction of circulating BFU-Es. Serum erythropoietin (Epo), estimated by radio-immunoassay, was 96 miu/ml in the son and 360 miu/ml in the father (normal 25, SD 6, n = 46). We conclude that erythrocytosis in this family is due to a genetically determined hyper-production of Epo. The finding in the father of a high Hb level associated with increased Epo and decreased BFU-Es might support the hypothesis that red cell mass is regulated by Epo at the level of bone marrow CFU-Es rather than BFU-Es.
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Luzzatto L, Sodeinde O, Martini G. Genetic variation in the host and adaptive phenomena in Plasmodium falciparum infection. Ciba Found Symp 2008; 94:159-73. [PMID: 6341000 DOI: 10.1002/9780470715444.ch10] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The in vitro culture of Plasmodium falciparum, after synchronization, lends itself well to an analysis of the asexual schizogonic cycle. We have found in this system that DNA synthesis and RNA synthesis are associated mainly with the trophozoite stage, with the latter peaking slightly ahead of the former. Distinctive patterns of protein synthesis are seen at serial times along the cycle, with a number of 'stage-specific' bands identifiable on SDS gels. The fate of the infection can be influenced by the genotype of the host cell. Thus, glucose-6-phosphate dehydrogenase (G6PD)-deficient erythrocytes are invaded normally, but maturation of intracellular parasites is delayed and impaired. However, the parasites that do develop will then have a normal behaviour in their next rounds in G6PD-deficient cells, suggesting that an adaptive change has taken place. These results fit well with the relative protection against P. falciparum in vivo of girls heterozygous for G6PD deficiency but not of hemizygous G6PD-deficient boys.
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Schubert J, Young MD NS, Luzzatto L, Brodsky RA, Socié G, Rother RP, Rollins SA, Hillmen P. Lack of correlation of eculizumab therapy in paroxysmal nocturnal hemoglobinuria (PNH) patients with myeloproliferative disorders, myelodysplastic syndromes, acute leukemias or aplastic anemia with long-term treatment. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.7092] [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: 11/20/2022] Open
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29
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Schubert J, Young NS, Luzzatto L, Brodsky RA, Socié G, Rother RP, Rollins SA, Hillmen P. Evaluation of risk for development of myeloproliferative disorders, myelodysplastic syndromes, or acute leukemias with long-term eculizumab therapy in paroxysmal nocturnal hemoglobinuria (PNH) patients. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.7087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
7087 Background: PNH is a rare bone marrow failure disorder defined by stem cell clones with somatic mutations in the PIG-A gene. These mutations result in peripheral blood cells deficient in GPI-anchored proteins including complement inhibitors CD55 and CD59. Chronic lysis of PNH RBCs leads to severe anemia, life-threatening thrombosis, debilitating fatigue, and impaired quality of life. Previous studies have indicated an increased frequency of myeloproliferative disorders, MDS, and acute leukemias in PNH. In a previous retrospective analysis of 1,760 PNH patients, 6.8% developed either myeloid or lymphoid disorders and 1% developed acute leukemias. Eculizumab (Soliris) is a humanized antibody that prevents terminal complement activation. Long-term eculizumab treatment has been evaluated in 195 PNH patients (>250 patient years of exposure) and shown to significantly restore the endogenous PNH RBC clone resulting in improved anemia, as well as significant improvements in thrombosis, fatigue, and quality of life. Methods: Leukocyte clone sizes were assessed at baseline and 26 weeks for patients receiving eculizumab in the Phase III clinical trials (TRIUMPH and SHEPHERD) using flow cytometry. The frequency of MDS and leukemia was calculated as a percentage of the eculizumab-treated patients across all eculizumab trials. Results: PNH leukocyte clone size did not increase with eculizumab treatment (median 96.1% at baseline vs 95.5% at week 26; P=0.80, signed rank test) suggesting that inhibition of terminal complement does not destroy or result in the proliferation of PNH leukocyte clones. Additionally, the frequency of new MDS (1/195 patients, 0.5%) and CMML (1/195 patients, 0.5%) during the treatment period was not increased over that expected. The single case of CMML occurred in a patient previously diagnosed with and was attributed to high grade myelodysplasia. Conclusions: To date, eculizumab treatment of PNH patients does not increase the risk for the development of myeloproliferative disorders, MDS or acute leukemias. Patients on eculizumab will continue to be followed in a Global PNH Safety Registry. No significant financial relationships to disclose.
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Affiliation(s)
- J. Schubert
- Saarland University Medical School, Homburg/Saar, Germany; National Heart, Lung, and Blood Institute, Bethesda, MD; Istituto Toscano Tumori, Firenze, Italy; Johns Hopkins University School of Medicine, Baltimore, MD; Hospital Saint Louis and INSERM, Paris, France; Alexion Pharmaceuticals Inc, Cheshire, CT; Leeds General Infirmary, Leeds, United Kingdom
| | - N. S. Young
- Saarland University Medical School, Homburg/Saar, Germany; National Heart, Lung, and Blood Institute, Bethesda, MD; Istituto Toscano Tumori, Firenze, Italy; Johns Hopkins University School of Medicine, Baltimore, MD; Hospital Saint Louis and INSERM, Paris, France; Alexion Pharmaceuticals Inc, Cheshire, CT; Leeds General Infirmary, Leeds, United Kingdom
| | - L. Luzzatto
- Saarland University Medical School, Homburg/Saar, Germany; National Heart, Lung, and Blood Institute, Bethesda, MD; Istituto Toscano Tumori, Firenze, Italy; Johns Hopkins University School of Medicine, Baltimore, MD; Hospital Saint Louis and INSERM, Paris, France; Alexion Pharmaceuticals Inc, Cheshire, CT; Leeds General Infirmary, Leeds, United Kingdom
| | - R. A. Brodsky
- Saarland University Medical School, Homburg/Saar, Germany; National Heart, Lung, and Blood Institute, Bethesda, MD; Istituto Toscano Tumori, Firenze, Italy; Johns Hopkins University School of Medicine, Baltimore, MD; Hospital Saint Louis and INSERM, Paris, France; Alexion Pharmaceuticals Inc, Cheshire, CT; Leeds General Infirmary, Leeds, United Kingdom
| | - G. Socié
- Saarland University Medical School, Homburg/Saar, Germany; National Heart, Lung, and Blood Institute, Bethesda, MD; Istituto Toscano Tumori, Firenze, Italy; Johns Hopkins University School of Medicine, Baltimore, MD; Hospital Saint Louis and INSERM, Paris, France; Alexion Pharmaceuticals Inc, Cheshire, CT; Leeds General Infirmary, Leeds, United Kingdom
| | - R. P. Rother
- Saarland University Medical School, Homburg/Saar, Germany; National Heart, Lung, and Blood Institute, Bethesda, MD; Istituto Toscano Tumori, Firenze, Italy; Johns Hopkins University School of Medicine, Baltimore, MD; Hospital Saint Louis and INSERM, Paris, France; Alexion Pharmaceuticals Inc, Cheshire, CT; Leeds General Infirmary, Leeds, United Kingdom
| | - S. A. Rollins
- Saarland University Medical School, Homburg/Saar, Germany; National Heart, Lung, and Blood Institute, Bethesda, MD; Istituto Toscano Tumori, Firenze, Italy; Johns Hopkins University School of Medicine, Baltimore, MD; Hospital Saint Louis and INSERM, Paris, France; Alexion Pharmaceuticals Inc, Cheshire, CT; Leeds General Infirmary, Leeds, United Kingdom
| | - P. Hillmen
- Saarland University Medical School, Homburg/Saar, Germany; National Heart, Lung, and Blood Institute, Bethesda, MD; Istituto Toscano Tumori, Firenze, Italy; Johns Hopkins University School of Medicine, Baltimore, MD; Hospital Saint Louis and INSERM, Paris, France; Alexion Pharmaceuticals Inc, Cheshire, CT; Leeds General Infirmary, Leeds, United Kingdom
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Brodsky RA, Hillmen P, Schubert J, Luzzatto L, Socié G, Mojcik CF, Rother RP, Young NS. Safety and efficacy of eculizumab in paroxysmal nocturnal hemoglobinuria evolving from patients with myelodysplastic syndrome and aplastic anemia. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.7033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
7033 Background: Myelodysplastic syndrome (MDS) and aplastic anemia (AA) have been reported to be associated with the development of the acquired clonal hemolytic and bone marrow failure disorder, paroxysmal nocturnal hemoglobinuria (PNH). Two recent phase 3 clinical studies have demonstrated significant benefit of the complement inhibitor eculizumab (Soliris) in a heterogeneous population of patients with PNH (n=140). Methods: To investigate whether eculizumab was safe and effective in PNH patients with a history of MDS or AA (n=37), efficacy parameters were examined in the MDS/AA patient subpopulation. Results: Intravascular hemolysis, as assessed by plasma levels of the enzyme lactate dehydrogenase (LDH), was reduced from a mean of 1871 ± 159 U/L at baseline to 300 ± 21 U/L at week 26 in patients with a history of MDS or AA (p<0.001, signed rank test; normal range 103–223 U/L). Anemia was improved as packed RBC transfusion requirements were substantially reduced with eculizumab in these patients from a median of 8 units per patient in the 6 months before treatment to 0 units per patient during eculizumab treatment (p<0.001, signed rank test). Despite history of bone marrow failure, eculizumab treatment markedly improved fatigue with an 11.6 point increase over baseline using the FACIT-Fatigue instrument (p<0.001, signed rank test; a 3 or more point increase in this instrument has been shown to be clinical meaningful). Fatigue was similarly improved with the fatigue scale of the EORTC QLQ-C30 instrument (p<0.001, signed rank test). Eculizumab appeared to be well tolerated when administered to PNH patients with a history of MDS or AA. The significant clinical improvements in hematologic and quality of life outcomes with eculizumab treatment in PNH patients with a history of MDS or AA were similar to the clinical improvements demonstrated the overall PNH patient population. Conclusions: These analyses show that eculizumab treatment may provide important clinical benefit when administered to PNH patients with a history of bone marrow failure. No significant financial relationships to disclose.
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Affiliation(s)
- R. A. Brodsky
- Johns Hopkins University School of Medicine, Baltimore, MD; Leeds General Infirmary, Leeds, United Kingdom; Saarland University Medical School, Homburg/Saar, Germany; Istituto Toscano Tumori, Firenze, Italy; Hospital Saint Louis and INSERM, Paris, France; Alexion Pharmaceuticals Inc, Cheshire, CT; National Heart, Lung, and Blood Institute, Bethesda, MD
| | - P. Hillmen
- Johns Hopkins University School of Medicine, Baltimore, MD; Leeds General Infirmary, Leeds, United Kingdom; Saarland University Medical School, Homburg/Saar, Germany; Istituto Toscano Tumori, Firenze, Italy; Hospital Saint Louis and INSERM, Paris, France; Alexion Pharmaceuticals Inc, Cheshire, CT; National Heart, Lung, and Blood Institute, Bethesda, MD
| | - J. Schubert
- Johns Hopkins University School of Medicine, Baltimore, MD; Leeds General Infirmary, Leeds, United Kingdom; Saarland University Medical School, Homburg/Saar, Germany; Istituto Toscano Tumori, Firenze, Italy; Hospital Saint Louis and INSERM, Paris, France; Alexion Pharmaceuticals Inc, Cheshire, CT; National Heart, Lung, and Blood Institute, Bethesda, MD
| | - L. Luzzatto
- Johns Hopkins University School of Medicine, Baltimore, MD; Leeds General Infirmary, Leeds, United Kingdom; Saarland University Medical School, Homburg/Saar, Germany; Istituto Toscano Tumori, Firenze, Italy; Hospital Saint Louis and INSERM, Paris, France; Alexion Pharmaceuticals Inc, Cheshire, CT; National Heart, Lung, and Blood Institute, Bethesda, MD
| | - G. Socié
- Johns Hopkins University School of Medicine, Baltimore, MD; Leeds General Infirmary, Leeds, United Kingdom; Saarland University Medical School, Homburg/Saar, Germany; Istituto Toscano Tumori, Firenze, Italy; Hospital Saint Louis and INSERM, Paris, France; Alexion Pharmaceuticals Inc, Cheshire, CT; National Heart, Lung, and Blood Institute, Bethesda, MD
| | - C. F. Mojcik
- Johns Hopkins University School of Medicine, Baltimore, MD; Leeds General Infirmary, Leeds, United Kingdom; Saarland University Medical School, Homburg/Saar, Germany; Istituto Toscano Tumori, Firenze, Italy; Hospital Saint Louis and INSERM, Paris, France; Alexion Pharmaceuticals Inc, Cheshire, CT; National Heart, Lung, and Blood Institute, Bethesda, MD
| | - R. P. Rother
- Johns Hopkins University School of Medicine, Baltimore, MD; Leeds General Infirmary, Leeds, United Kingdom; Saarland University Medical School, Homburg/Saar, Germany; Istituto Toscano Tumori, Firenze, Italy; Hospital Saint Louis and INSERM, Paris, France; Alexion Pharmaceuticals Inc, Cheshire, CT; National Heart, Lung, and Blood Institute, Bethesda, MD
| | - N. S. Young
- Johns Hopkins University School of Medicine, Baltimore, MD; Leeds General Infirmary, Leeds, United Kingdom; Saarland University Medical School, Homburg/Saar, Germany; Istituto Toscano Tumori, Firenze, Italy; Hospital Saint Louis and INSERM, Paris, France; Alexion Pharmaceuticals Inc, Cheshire, CT; National Heart, Lung, and Blood Institute, Bethesda, MD
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Mojcik CF, Young NS, Luzzatto L, Socié G, Hillmen P, Brodsky RA. Safety and efficacy of eculizumab with concomitant erythropoietin therapy in patients with paroxysmal nocturnal hemoglobinuria (PNH). J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.3032] [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: 11/20/2022] Open
Abstract
3032 Background: Erythropoietins (EPO) are commonly used to improve anemia in patients with bone marrow failure syndromes and in patients with chemotherapy-induced anemia. Two recent phase 3 clinical studies have demonstrated significant benefit of the terminal complement inhibitor, eculizumab (Soliris), in a heterogeneous population of patients with the acquired clonal hemolytic and bone marrow failure disorder, PNH (n=140). While previous studies have shown that EPO is associated with only moderate improvements in fatigue in anemic cancer patients (effect size of 0.5), eculizumab has demonstrated large improvements in fatigue in PNH patients (effect size of 1.1). Methods: To investigate whether eculizumab provides further benefit to PNH patients receiving EPO, efficacy parameters were examined in the EPO subpopulation (n=8). Results: Intravascular hemolysis, as assessed by plasma levels of lactate dehydrogenase (LDH) area under the curve, was reduced 268,271 U/L x day to near normal levels in EPO-treated patients during 26 weeks of eculizumab therapy (p=0.008, signed rank test). Anemia was improved as packed RBC transfusion requirements were substantially reduced with eculizumab in EPO patients from a median of 7.5 units per patient in the 6 months before treatment to 1 unit per patient during eculizumab treatment (p=0.031, signed rank test). Despite pre-existing EPO and transfusion support, eculizumab treatment markedly improved fatigue with a 7.3 point increase over baseline using the FACIT-fatigue instrument (p=0.016, signed rank test; a 3 or more point increase in this instrument has been shown to be clinically meaningful). Eculizumab was well tolerated when administered to PNH patients treated with concomitant EPO with adverse events similar to the overall population. The significant clinical improvements in hematologic and quality of life outcomes with eculizumab treatment in PNH patients receiving concomitant EPO were similar to the clinical improvements demonstrated in the overall PNH patient population. Conclusions: These analyses show that eculizumab treatment provides important clinical benefit when administered to PNH patients receiving EPO support for bone marrow failure. No significant financial relationships to disclose.
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Affiliation(s)
- C. F. Mojcik
- Alexion Pharmaceuticals Inc, Cheshire, CT; National Heart, Lung, and Blood Institute, Bethesda, MD; Istituto Toscano Tumori, Firenze, Italy; Hospital Saint Louis and INSERM, Paris, France; Leeds General Infirmary, Leeds, United Kingdom; Johns Hopkins University School of Medicine, Baltimore, MD
| | - N. S. Young
- Alexion Pharmaceuticals Inc, Cheshire, CT; National Heart, Lung, and Blood Institute, Bethesda, MD; Istituto Toscano Tumori, Firenze, Italy; Hospital Saint Louis and INSERM, Paris, France; Leeds General Infirmary, Leeds, United Kingdom; Johns Hopkins University School of Medicine, Baltimore, MD
| | - L. Luzzatto
- Alexion Pharmaceuticals Inc, Cheshire, CT; National Heart, Lung, and Blood Institute, Bethesda, MD; Istituto Toscano Tumori, Firenze, Italy; Hospital Saint Louis and INSERM, Paris, France; Leeds General Infirmary, Leeds, United Kingdom; Johns Hopkins University School of Medicine, Baltimore, MD
| | - G. Socié
- Alexion Pharmaceuticals Inc, Cheshire, CT; National Heart, Lung, and Blood Institute, Bethesda, MD; Istituto Toscano Tumori, Firenze, Italy; Hospital Saint Louis and INSERM, Paris, France; Leeds General Infirmary, Leeds, United Kingdom; Johns Hopkins University School of Medicine, Baltimore, MD
| | - P. Hillmen
- Alexion Pharmaceuticals Inc, Cheshire, CT; National Heart, Lung, and Blood Institute, Bethesda, MD; Istituto Toscano Tumori, Firenze, Italy; Hospital Saint Louis and INSERM, Paris, France; Leeds General Infirmary, Leeds, United Kingdom; Johns Hopkins University School of Medicine, Baltimore, MD
| | - R. A. Brodsky
- Alexion Pharmaceuticals Inc, Cheshire, CT; National Heart, Lung, and Blood Institute, Bethesda, MD; Istituto Toscano Tumori, Firenze, Italy; Hospital Saint Louis and INSERM, Paris, France; Leeds General Infirmary, Leeds, United Kingdom; Johns Hopkins University School of Medicine, Baltimore, MD
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Luzzatto L, Notaro R, Gianfaldoni G. 18 Paroxysmal nocturnal hemoglobinuria. Leuk Res 2007. [DOI: 10.1016/s0145-2126(07)70019-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] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Amanti C, Catracchia V, Conte S, Luzzatto L, Lo Russo M, Marino G, Moscaroli A. [Breast surgery in HIV-positive women]. G Chir 2004; 25:180-2. [PMID: 15382477] [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: 04/30/2023]
Abstract
The increasing of HIV infection in young women as well as prolonged survival let us to register an important rising of breast cancers in such type of patients. The Authors report the case of a 48 year old HIV-positive woman, who underwent surgery because of the histological positivity for cancer of the right breast. It was decided to perform a quadrantectomy and reconstruction with implant, because of the absence of immunodepression. The Authors discuss about indications for reconstructive surgery in seropositive women with breast cancer.
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Affiliation(s)
- C Amanti
- Università degli Studi La Sapienza di Roma, II Facoltà di Medicina e Chirurgia, Ospedale Sant'Andrea, Dipartimento di Chirurgia
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Abstract
The Leiden liquid-based cytology method for the preparation of optimal cytological slides is reported. In such slides, the proliferation pattern of cervical cells can be visualized in detail. Cervical smears and suspension preparations of 665 consecutive unselected patients received in 2003 were studied. Of the 665 patients, 26 (10 normal, 10 with cervical atrophy, 5 with mild dysplasia, and 1 carcinoma in situ) were selected. After using the Thermo Shandon Papspin, the wet slides were placed on a hot plate and dried for 30 min. Proliferation of the cervical cells was visualized in brown by staining the cells for MiB-1 antigen, and nuclear DNA in blue by a standardized short staining with hematoxylin. We found excellent high-resolution demonstrability of cell cycle-related MiB-1 distribution in the well-flattened nuclei. The phase of the cell cycle could be deduced from brown-blue staining patterns. There was a significant increase of MiB-1-positive cell yield related to progression in the degree of pathology.
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Affiliation(s)
- Laura Luzzatto
- Leiden Cytology and Pathology Laboratory, Leiden, The Netherlands
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Midiri G, Eleuteri E, Coppola M, Giarnieri E, Marino G, Di Giovan Paolo M, De Francesco GP, Luzzatto L, Maceratini R, Angelini L. [Is the Lauren classification an independent parameter for the prognostic evaluation of surgically treated gastric cancer patients? Analysis of a case series]. G Chir 2003; 24:403-5. [PMID: 15018407] [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: 04/29/2023]
Abstract
The Authors highlight the efficacy of the Lauren's classification in 28 surgically treated gastric cancer patients. Lauren's classification allows a prognostic evaluation corresponding to the effective gastric cancer natural history. Present histo-morphological classification criteria appear not to coincide with the clinical evolution; as a matter of fact over- or understaging is possible in gastric cancer patients. 64,28% of the Lauren's classification intestinal type patients survive after a four year follow up vs. 42,85% of the diffuse type patients. The Authors discuss about new biomolecular knowledge in gastric cancer oncogenesis.
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Affiliation(s)
- G Midiri
- Università degli Studi "La Sapienza" di Roma, II Facoltà di Medicina e Chirurgia, Chirurgia B
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36
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Midiri G, Papaspiropoulos V, Coppola M, Eleuteri E, Tucci G, Conte S, Marino G, Luzzatto L, Angelini L. [Telementoring in surgery]. G Chir 2003; 24:382-4. [PMID: 14723000] [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: 04/28/2023]
Abstract
Tele-mentoring is an interactive experimental method that allows young surgeons' education by distant learning tutoring of an expert surgeon. The problem about assessment of efficacy and quality of computer-assisted instruction is under evaluation today. Tele-mentoring is supported by videoconferencing system and it is not an exclusive methodology but an additional methodology to traditional didactic for clinicians and surgeons. It allows personal virtual trainings by computers and telecommunication systems. Videoconference allows tutoring for telemedicine, teletriage and telesurgery also.
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Affiliation(s)
- G Midiri
- Il Facoltà di Medicina e Chirurgia, Università degli Studi La Sapienza, Roma
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37
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Luzzatto L. The spectrum of molecular lesions in human tumors. Pathologica 2003; 95:221-3. [PMID: 14988975] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023] Open
Affiliation(s)
- L Luzzatto
- Istituto Nazionale Ricerca sul Cancro, IST, Genova
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38
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Midiri G, Giarnieri E, Covotta A, Soda G, Tucci G, Consorti F, Pacella M, Gidaro S, Covotta L, Luzzatto L, Cirolla VA, Conte S, Marino G, Vecchione A, Beltrami V. [Changes in the expression of cellular alpha and beta tubulins in patients with sporadic type colorectal cancer]. G Chir 2003; 24:171-3. [PMID: 12945166] [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: 03/04/2023]
Abstract
The aim of this preliminar report is to evaluate alfa and beta tubulins, components of cellular microtubules, alterated expression in sporadic colorectal cancer patients. The Authors considered 16 patients who underwent surgery for sporadic colorectal carcinoma with radical intent. Alfa and beta tubulins were evaluated in tumoral mucosa by immunohistochemistry. In 56.2% of the examined patients a low expression of alfa and beta tubulins was showed while the alteration of alfa tubulin was showed in 81.2% of the patients. This finding supports the hypothesis of Porter that alterations in microtubule structure might be part of the cellular response to DNA damage.
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Affiliation(s)
- G Midiri
- II Facoltà di Medicina e Chirurgia Chirurgia Generale B, Ospedale Sant'Andrea, Università degli Studi La Sapienza, Roma
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39
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Giarnieri E, Midiri G, Cirolla VA, Covotta A, Covotta L, Avitto FM, Luzzatto L, Marino G, Conte S, Vecchione A, Beltrami V. [From molecular biology to new treatment approaches to colorectal cancer: basic research, experimental trials and surgical implications]. G Chir 2003; 24:109-14. [PMID: 12886747] [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: 03/03/2023]
Abstract
The Authors review the natural history of colorectal cancer from the point of view of molecular biology and genetics from aberrant crypts foci and familiar adenomatous polyposis to hereditary non polyposis colon cancer and sporadic colorectal cancer. They carry out international literature about basis knowledges, experimental trials and personal studies. Up to day traditional colorectal cancer surgical treatments and adjuvant or neoadjuvant pharmacological therapy cannot be modified, nevertheless "new drugs generation" known as signal transduction inhibitor could, in the future, prove to be an effective cancer treatment. The Authors highlight recent experimental clinical trials probably able to prevent sporadic colorectal cancer spreading and precursor evolution.
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MESH Headings
- Adenomatous Polyposis Coli/genetics
- Angiogenesis Inhibitors/therapeutic use
- Antibodies, Monoclonal/therapeutic use
- Antibodies, Monoclonal, Humanized
- Antineoplastic Agents/therapeutic use
- Apoptosis/genetics
- Cetuximab
- Clinical Trials as Topic
- Clinical Trials, Phase I as Topic
- Clinical Trials, Phase II as Topic
- Colorectal Neoplasms/drug therapy
- Colorectal Neoplasms/genetics
- Colorectal Neoplasms/surgery
- Colorectal Neoplasms, Hereditary Nonpolyposis/genetics
- ErbB Receptors/antagonists & inhibitors
- Follow-Up Studies
- Gefitinib
- Genes, APC
- Genes, DCC
- Genes, p53
- Genes, ras
- Humans
- Indoles/therapeutic use
- Mutation
- Prognosis
- Protein-Tyrosine Kinases/antagonists & inhibitors
- Pyrroles/therapeutic use
- Quinazolines/therapeutic use
- Receptors, Vascular Endothelial Growth Factor/antagonists & inhibitors
- Research
- Time Factors
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Affiliation(s)
- E Giarnieri
- II Facoltà di Medicina e Chirurgia, Oncologia, Ospedale Sant'Andrea, Università degli Studi La Sapienza, Roma
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40
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Mussolin L, Basso K, Pillon M, D'Amore ES, Lombardi A, Luzzatto L, Zanesco L, Rosolen A. Prospective analysis of minimal bone marrow infiltration in pediatric Burkitt's lymphomas by long-distance polymerase chain reaction for t(8;14)(q24;q32). Leukemia 2003; 17:585-9. [PMID: 12646948 DOI: 10.1038/sj.leu.2402828] [Citation(s) in RCA: 31] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The chromosomal translocation t(8;14)(q24;q32) represents a characteristic marker for Burkitt's lymphoma (BL). This translocation involves the MYC oncogene on chromosome 8 and the immunoglobulin heavy-chain (IgH) locus on chromosome 14. Since the translocation does not produce a fusion gene, we established a long-distance polymerase chain reaction (LD-PCR) assay that can detect the t(8;14) at the genomic level. The sensitivity of the LD-PCR was 10(-4). We used the LD-PCR assay to prospectively study 78 BL patients and found a specific PCR product in 52 of them. Among the 52 positive patients, we could test both the tumor and the bone marrow (BM) at diagnosis in 33 and determined the prevalence of minimal disseminated disease (MDD) at diagnosis. In 12/33 patients, BM was positive by LD-PCR and in 10 of them we conducted a study of minimal residual disease (MRD). Eight out of 10 children showed a clearance of MRD after one cycle of chemotherapy. The only two patients who did not achieve a negative MRD status died of disease progression. The comparative analysis of sensitivity of BM aspirate, BM biopsy and LD-PCR in t(8;14)-positive patients demonstrated a superiority of the molecular method in the assessment of MDD. The LD-PCR for t(8;14) is an important tool to study minimal BM infiltration at diagnosis and to determine its response kinetics in BL.
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Affiliation(s)
- L Mussolin
- Clinica di Oncoematologia Pediatrica, Azienda Ospedaliera-Università di Padova, Italy
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41
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Araten DJ, Bessler M, McKenzie S, Castro-Malaspina H, Childs BH, Boulad F, Karadimitris A, Notaro R, Luzzatto L. Dynamics of hematopoiesis in paroxysmal nocturnal hemoglobinuria (PNH): no evidence for intrinsic growth advantage of PNH clones. Leukemia 2002; 16:2243-8. [PMID: 12399968 DOI: 10.1038/sj.leu.2402694] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
PNH is characterized by expansion of one or more stem cell clones with a PIG-A mutation, which causes a severe deficiency in the expression of glycosylphosphatidylinositol (GPI)-anchored proteins. There is evidence that the expansion of PIG-A mutant clones is concomitant with negative selection against PIG-A wild-type stem cells by an aplastic marrow environment. We studied 36 patients longitudinally by serial flow cytometry, and we determined the proportion of PNH red cells and granulocytes over a period of 1-6 years. We observed expansion of the PNH blood cell population(s) (at a rate of over 5% per year) in 12 out of 36 patients; in all other patients the PNH cell population either regressed or remained stable. The dynamics of the PNH cell population could not be predicted by clinical or hematologic parameters at presentation. These data indicate that in most cases the PNH cell expansion has already run its course by the time of diagnosis. In addition, since in most cases no further expansion takes place, we can infer that the tendency to overgrow normal cells is not an intrinsic property of the PNH clone.
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Affiliation(s)
- D J Araten
- Department of Medicine, Hematology Division, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
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42
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Amanti C, Moscaroli A, Lo Russo M, Papaspyropoulos V, Luzzatto L, Catracchia V, Macchione B, Pucciatti I, Regolo L, Coppola M, Angelini L. [Periareolar subcutaneous quadrantectomy: a new approach in breast cancer surgery]. G Chir 2002; 23:445-9. [PMID: 12652922] [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: 03/01/2023]
Abstract
Plastic and oncological breast surgery are becoming more and more closer as one surgical treatment. The term "oncoplastic surgery" refers to the use of plastic surgery techniques in breast cancer surgery, in order to avoid and to correct the adverse aesthetic findings. The care of cosmetic sequelae of breast cancer surgery has reached an important therapeutic role for psychological consequences of disease and because of the higher patients expectations of a good aesthetic result. Considering the concept of oncoplastic surgery, since 1999 the Authors began to use a periareloar approach in the breast conserving therapy (BCT), associated to axillary dissection performed through the same periareolar incision. This technique, original from the oncological point of view, is not different from the traditional quadrantectomy in the extension of the glandular resection, while the skin may be preserved in according to the conventional protocols of BCT. Oncological and aesthetic results have proved to be safe and satisfactory.
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Affiliation(s)
- C Amanti
- Servizio di Senologia, Cattedra di Chirurgia Generale, Dipartimento di Scienze Chirurgiche F. Durante, Università degli Studi La Sapienza, Roma
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43
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Karadimitris A, Li K, Notaro R, Araten DJ, Nafa K, Thertulien R, Ladanyi M, Stevens AE, Rosenfeld CS, Roberts IA, Luzzatto L. Association of clonal T-cell large granular lymphocyte disease and paroxysmal nocturnal haemoglobinuria (PNH): further evidence for a pathogenetic link between T cells, aplastic anaemia and PNH. Br J Haematol 2001; 115:1010-4. [PMID: 11843843 DOI: 10.1046/j.1365-2141.2001.03172.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
There is mounting evidence to suggest that T-cell-mediated suppression of haemopoiesis is a pathogenetic mechanism in three bone marrow failure syndromes: aplastic anaemia (AA), paroxysmal nocturnal haemoglobinuria (PNH) and myelodysplasia (MDS). T-cell microclones can be detected by sensitive polymerase chain reaction (PCR)-based methods in all three disorders. Recently, larger clonal populations of T-cell large granular lymphocytes (T-LGLs) have been observed in some patients with AA and MDS. Here, we report the development of a large clonal T-LGL population in a patient with bona fide PNH. In this patient, we defined part of the sequence of the T-cell receptor (TCR) beta-chain gene, and we have shown that the large T-LGL population emerged from a background of multiple smaller T-cell clones. Thus, T-LGL clones in AA, MDS and PNH probably expand as a result of antigenic stimulation. It is postulated that the antigen driving clonal T-cell proliferations in these disorders exists on haemopoietic stem cells.
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Affiliation(s)
- A Karadimitris
- Department of Human Genetics, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
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44
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Araten DJ, Swirsky D, Karadimitris A, Notaro R, Nafa K, Bessler M, Thaler HT, Castro-Malaspina H, Childs BH, Boulad F, Weiss M, Anagnostopoulos N, Kutlar A, Savage DG, Maziarz RT, Jhanwar S, Luzzatto L. Cytogenetic and morphological abnormalities in paroxysmal nocturnal haemoglobinuria. Br J Haematol 2001; 115:360-8. [PMID: 11703336 DOI: 10.1046/j.1365-2141.2001.03113.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Paroxysmal nocturnal haemoglobinuria (PNH) is characterized by the expansion of a haematopoietic stem cell clone with a PIG-A mutation (the PNH clone) in an environment in which normal stem cells are lost or failing: it has been hypothesized that this abnormal marrow environment provides a relative advantage to the PNH clone. In patients with PNH, generally, the karyotype of bone marrow cells has been reported to be normal, unlike in myelodysplastic syndrome (MDS), another clonal condition in which cytogenetic abnormalities are regarded as diagnostic. In a retrospective review of 46 patients with a PNH clone, we found a karyotypic abnormality in 11 (24%). Upon follow-up, the proportion of cells with abnormal karyotype decreased significantly in seven of these 11 patients. Abnormal morphological bone marrow features reminiscent of MDS were common in PNH, regardless of the karyotype. However, none of our patients developed excess blasts or leukaemia. We conclude that in patients with PNH cytogenetically abnormal clones are not necessarily malignant and may not be predictive of evolution to leukaemia.
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Affiliation(s)
- D J Araten
- Department of Human Genetics, Memorial Sloan-Kettering Cancer Center, New York, USA
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45
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Affiliation(s)
- L Luzzatto
- Department of Human Genetics, Memorial Sloan Kettering Center, New York, NY, USA.
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46
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Abstract
Paroxysmal nocturnal haemoglobinuria (PNH) is a unique disorder characterised by the triad of intravascular haemolysis, thrombosis and bone marrow failure. In the early seventies it was shown that PNH is a clonal disease; and in the nineties the molecular basis of the PNH abnormality was elucidated. However, what makes a PNH clone expand is still not known. Here, we suggest that this is due to somatic cell selection, resulting from the presence in the patient of autoreactive T cells that target glycosylphosphatidylinositol (GPI) in the context of an MHC-like molecule on the surface of haemopoietic stem cells. PNH cells would escape damage precisely because they have lost most or all of their ability to produce GPI.
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47
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Affiliation(s)
- L Luzzatto
- National Institute for Cancer Research, Genova, Italy.
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48
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Midiri G, Consorti F, Giarnieri E, Soda G, Bosco D, Lorenzotti A, Luzzatto L, Conte S, Lo Russo M, Vecchione A, Beltrami V. [Genetics-based prognosis evaluation of patients surgically treated for sporadic colorectal cancer]. G Chir 2001; 22:165-8. [PMID: 11443839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
The basic assumption as rationale of this research was that DNA repair genes (MMR system) are at beginning of the genetic mutational cascade causing the induction of oncogenesis of sporadic colorectal cancers as well as their multiclonal heterogeneity. In a previous study the Authors randomly selected, from a series of 256 patients, 29 patients up to the age of 60 years who underwent surgery for colorectal carcinoma with radical intent. All selected cases were considered as sporadic cancers from a clinical point of view, since none of them fulfilled the Amsterdam criteria for HNPCC and familial adenomatous polyposis was included too. Mismatch repair gene proteins expression and, in particular, gene hMSH2 protein was investigated by immunohistochemistry analysis. In 12 cases (41.4%) hMSH2 exhibited strong expression in the tumoral cells as well as in the surrounding mucosa and at distant mucosa. In 14 cases (48.3%) loss of hMSH2 protein expression was observed in tumoral cells and low immunoreactivity was detected in peritumoral mucosa while strong hMSH2 expression was observed in distant mucosa. In a third small group of patients (10.3%) loss of hMSH2 protein expression was detected in tumoral, adjacent and at distance normal mucosa. After a five years follow up, 100% of twelve patients of first group are still alive vs 64.3% of fourteen patients of second group, while in the third group only one patient survives. These results support the hypothesis of an involvement of hMSH2 gene defect in development of a subset of sporadic colorectal cancer. For the patients with strong expression of hMSH2 in the tumoral cells as well as in the surrounding mucosa and at distant mucosa, this parameter could represent an independent criterion for a good prognostic value.
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Affiliation(s)
- G Midiri
- Università degli Studi La Sapienza, Roma
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49
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De Angioletti M, Rovira A, Notaro R, Camacho Vanegas O, Sadelain M, Luzzatto L. Glucose 6-phosphate dehydrogenase expression is less prone to variegation when driven by its own promoter. Gene 2001; 267:221-31. [PMID: 11313149 DOI: 10.1016/s0378-1119(01)00394-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The ability to transfer permanently genes into mammalian cells makes retroviruses suitable vectors for the ultimate purpose of treating inherited genetic disease. However, expression of the retrovirally transferred genes is variable (position effect and expression variegation) because retroviruses are highly susceptible to the influence of the host genome sequences which flank the integration site. We have investigated this phenomenon with respect to the human housekeeping enzyme, glucose 6-phosphate dehydrogenase (hG6PD). We have constructed retroviral vectors in which the hG6PD cDNA is driven by either of two conventional retroviral promoters and enhancers from the Moloney Murine Leukemia Virus (MMLV) and the Myeloproliferative Sarcoma Virus (MPSV) long terminal repeats (LTR) or by the hG6PD own promoter replacing most of enhancer and promoter LTR (GRU5). We have compared the activity of retrovirally transferred hG6PD driven by these promoters after retroviral integration in bulk cultures and in individual clones of murine fibroblasts. The level of hG6PD expressed by the hG6PD promoter of GRU5-G6PD was significantly lower than that expressed by conventional retroviral vectors. However, analysis of the single copy clones showed less variation of expression with GRU5-G6PD (coefficient of variation, CV, 35.5%) than with conventional vectors (CV, 58.9%). Thus we have several vectors competent for reliable transfer and expression of hG6PD. The hG6PD promoter provides reproducible expression of hG6PD and limits the variability of expression. This decreased variability is important in order to help ensuring a consistent level of delivery of the needed gene product in future therapeutic protocols.
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Affiliation(s)
- M De Angioletti
- Department of Human Genetics, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, NY 10021, USA
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50
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Karadimitris A, Gadola S, Altamirano M, Brown D, Woolfson A, Klenerman P, Chen JL, Koezuka Y, Roberts IA, Price DA, Dusheiko G, Milstein C, Fersht A, Luzzatto L, Cerundolo V. Human CD1d-glycolipid tetramers generated by in vitro oxidative refolding chromatography. Proc Natl Acad Sci U S A 2001; 98:3294-8. [PMID: 11248072 PMCID: PMC30647 DOI: 10.1073/pnas.051604498] [Citation(s) in RCA: 149] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/20/2000] [Indexed: 12/21/2022] Open
Abstract
CD1 molecules are specialized in presenting lipids to T lymphocytes, but identification and isolation of CD1-restricted lipid specific T cells has been hampered by the lack of reliable and sensitive techniques. We here report the construction of CD1d-glycolipid tetramers from fully denatured human CD1d molecules by using the technique of oxidative refolding chromatography. We demonstrate that chaperone- and foldase-assisted refolding of denatured CD1d molecules and beta(2)-microglobulin in the presence of synthetic lipids is a rapid method for the generation of functional and specific CD1d tetramers, which unlike previously published protocols ensures isolation of CD1d tetramers loaded with a single lipid species. The use of human CD1d-alpha-galactosylceramide tetramers for ex vivo staining of peripheral blood lymphocytes and intrahepatic T cells from patients with viral liver cirrhosis allowed for the first time simultaneous analysis of frequency and specificity of natural killer T cells in human clinical samples. Application of this protocol to other members of the CD1 family will provide powerful tools to investigate lipid-specific T cell immune responses in health and in disease.
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Affiliation(s)
- A Karadimitris
- Nuffield Department of Medicine, Institute of Molecular Medicine, Oxford OX3 9DS, United Kingdom
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