Your browser doesn't support javascript.
loading
Prevalência do herpes-vírus humano tipo 1 em neoplasias cutâneas epiteliais malignas / Prevalence of human herpes virus type 1 in epithelial skin cancer
Ypiranga, Sylvia; Moraes, Aparecida Machado de.
  • Ypiranga, Sylvia; s.af
  • Moraes, Aparecida Machado de; Universidade Estadual de Campinas. Disciplina de Dermatologia. Campinas. BR
An. bras. dermatol ; 84(2): 137-142, mar.-abr. 2009. tab
Article in English, Portuguese | LILACS | ID: lil-515916
RESUMO
FUNDAMENTOS - O DNA viral pode atuar como oncogene, favorecendo o desenvolvimento de neoplasias, como as linfoides e da pele. Entre esses vírus, encontram-se alguns herpes-vírus humanos. OBJETIVO - Identificar a presença de DNA do herpes-vírus humano tipo 1 em neoplasias epiteliais pré-malignas,malignas e pele normal de indivíduos controle, avaliando seu papel na carcinogênese. MÉTODOS - Identificação, por reação em cadeia da polimerase, do DNA viral do tumor e pele sã de 41 pacientes e comparação com grupo controle, sem neoplasia. Análise estatística Testes de Fisher e de McNemar. RESULTADOS - O vírus foi identificado em 20 indivíduos sem e em 21 com neoplasia. Destes últimos, 11 o expessaram apenas nas células tumorais. A diferença, entretanto, não foi estatisticamente significante. CONCLUSÕES - Parece não haver relação direta entre o encontro do DNA viral na pele sã e na pele tumoral. Sua presença pode facilitar o desenvolvimento da neoplasia ou apenas coincidir de se localizar onde esta já ocorreu.
ABSTRACT
BACKGROUND - Viral DNA may act as an oncogene, especially in skin and lymphoid organs. This group includes some human herpes virus. OBJECTIVE - To identify human herpes virus type 1 DNA in pre-malignant and malignant skin samples of epithelial tumors comparing to normal skin to determine its role in carcinogenesis. METHODS - Forty-one patients with epithelial tumors were submitted to biopsies from tumor and normal skin. The control group comprised 41 biopsies from patients with other dermatoses than cancer. After DNA extraction, polymerase chain reaction was performed to identify 199-bp band. The results were statistically evaluated by Fisher and McNemar tests. RESULTS - The virus was identified in 20 subjects without cancer and in 21 with skin cancer. From these, 11 expressed it only in tumor cells. This difference was not significant. CONCLUSION - There seem to be no direct relation between viral findings in normal skin and skin cancer cells. It may act as a promoter or just coexist at the same site where a neoplastic transformation has already occurred.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Precancerous Conditions / Skin Neoplasms / DNA, Viral / Carcinoma, Squamous Cell / Herpesvirus 1, Human / Herpes Simplex Type of study: Observational study / Prevalence study / Prognostic study / Risk factors / Screening study Limits: Adolescent / Adult / Aged / Female / Humans / Male Language: English / Portuguese Journal: An. bras. dermatol Journal subject: Dermatology Year: 2009 Type: Article / Project document Affiliation country: Brazil Institution/Affiliation country: Universidade Estadual de Campinas/BR

Similar

MEDLINE

...
LILACS

LIS

Full text: Available Index: LILACS (Americas) Main subject: Precancerous Conditions / Skin Neoplasms / DNA, Viral / Carcinoma, Squamous Cell / Herpesvirus 1, Human / Herpes Simplex Type of study: Observational study / Prevalence study / Prognostic study / Risk factors / Screening study Limits: Adolescent / Adult / Aged / Female / Humans / Male Language: English / Portuguese Journal: An. bras. dermatol Journal subject: Dermatology Year: 2009 Type: Article / Project document Affiliation country: Brazil Institution/Affiliation country: Universidade Estadual de Campinas/BR