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1.
Radiother Oncol ; 89(2): 222-6, 2008 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-18706726

RESUMO

Hypoxia may inhibits the NHEJ DNA repair through downregulating Ku70/80 expression and combined with an increased angiogenesis and altered p53 expression would be responsible for tumor progression in cervical carcinoma.


Assuntos
Antígenos Nucleares/genética , Proteínas de Ligação a DNA/genética , Hipóxia/genética , Neoplasias do Colo do Útero/genética , Adulto , Idoso , Idoso de 80 Anos ou mais , Regulação para Baixo , Feminino , Humanos , Técnicas Imunoenzimáticas , Autoantígeno Ku , Pessoa de Meia-Idade , Estudos Prospectivos , Neoplasias do Colo do Útero/radioterapia
2.
Gynecol Oncol ; 110(3): 304-7, 2008 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-18599112

RESUMO

OBJECTIVE: To assess the expression of MVP in cervix carcinoma patients treated by radiochemotherapy, its relation to clinical and pathologic prognostic factors and its role in predicting clinical outcome. In addition the relation to IGF-1R expression in this cohort of patients will be explored. MATERIALS AND METHODS: Sixty consecutive patients suffering from localized cervix carcinoma were prospectively included in this study from July 1999 to December 2003. Follow-up was closed in November 2007. Patients were staged following the TNM classification. All patients received pelvic radiation (45-64.80 Gy in 1.8-2 Gy fractions) followed brachytherapy and concomitant cisplatin at 40 mg/m(2)/week doses. MVP expression was studied by immunohistochemistry in paraffin-embedded tumour tissue. RESULTS: MVP was expressed in 58 patients (96.7%) and no relation was found with clinicopathological variables. High MVP expression was related to high IGF1-R expression (p=0.023). Complete response after treatment was observed in 50 patients (83.3%). Clinical stage of the disease and clinical response to radiochemotherapy were the most important prognostic factors related to survival. High MVP and IGF-1R tumour expression was strongly related to poor local and regional disease-free survival (p=0.006), distant disease-free survival (p=0.050), disease-free survival (p=0.006), and cause-specific survival (p=0.007) in patients achieving a complete response. CONCLUSION: MVP and IGF-1R expression were related in clinical cervical tumours and confer reduced long-term local control in patients who achieved clinical complete response to radiochemotherapy.


Assuntos
Receptor IGF Tipo 1/biossíntese , Neoplasias do Colo do Útero/metabolismo , Neoplasias do Colo do Útero/terapia , Partículas de Ribonucleoproteínas em Forma de Abóbada/biossíntese , Estudos de Coortes , Terapia Combinada , Intervalo Livre de Doença , Feminino , Humanos , Imuno-Histoquímica , Pessoa de Meia-Idade , Estudos Prospectivos , Resultado do Tratamento , Neoplasias do Colo do Útero/tratamento farmacológico , Neoplasias do Colo do Útero/radioterapia
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