Clinical and cytological assessment and HPV prevalence in oral mucosal cells in Fanconis Anemia / Estudo clínico, citológico e de prevalência do papilomavírus humano em mucosa oral na Anemia de Fanconi

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

Fanconis anemia (FA) is a rare recessive genetic disorder characterized by boné marrow failure, developmental malformations and congenital abnormalities. FA progressive bone marrow failure usually evolves to aplastic anemia and malignant neoplasias, especially acute myeloid leukemia and head and neck squamous cell carcinomas. The risk of malignancies is increased after bone marrow transplantation (BMT), and recently the role of human papillomavirus (HPV) in FA carcinogenesis was proposed. We performed an oral examination, liquid based cytology sampling of oral epithelial cells, assessment of atypias according to Papanicolaou classification, cytomorphometric analysis of oral epithelial cells, HPV screening by PCR and genotyping by reverse hybridization. Sample subjects were divided into 4 groups: BMT FA patients (I), not BMT FA patients (II), BMT severe aplastic anemia patients (SAA) and a healthy control group (IV). No malignant lesions were detected on oral examination. In comparison with the control group the results showed: a) an increase in the nuclear area (NA) in oral epithelial cells in FA and SAA (p<0.05); b) an increase in the cytoplasmic area (CA) in FA (p<0.05); c) a decrease in the NA/CA ratio in BMT FA patients (p<0.05), an increase of it in SAA (p<0.05) and no alterations in not BMT FA patients; d) a high HPV prevalence was detected in BMT FA (35%, p<0.05) and SAA patients (38%, p<0.05), whereas in not BMT FA patients (27.27%) there was not a significant statistical difference in comparison with the control group (6.25%) and e) the high risk, HPV-16, was the most frequent genotype (group I 71.42%, group II 33.33%, group III 28.57%, group IV 0%). HPV infection odds ratio adjusted for age and years of BMT showed an increase in HPV infection for both factors. In conclusion, results demonstrated that there were morphometric alterations in oral epithelial cells in FA and a high prevalence of oral HPV, especially HPV-16, in these patients without malignant lesions.

ASSUNTO(S)

reação em cadeia da polimerase citologia em base líquida liquid based cytology papilomavírus humano anemia de fanconi reverse hyb pcr human papillomavirus hpv fanconis anemia polymerase chain reaction

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