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Master's Dissertation
DOI
https://doi.org/10.11606/D.17.2010.tde-16112011-195436
Document
Author
Full name
Luiz Gustavo Oliveira Brito
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
Ribeirão Preto, 2010
Supervisor
Committee
Marana, Heitor Ricardo Cosiski (President)
Murta, Eddie Fernando Candido
Peria, Fernanda Maris
Title in Portuguese
Expressão imunohistoquímica do fator indutor de hipóxia 1-alfa (HIF-1?) em pacientes com câncer de mama localmente avançado
Keywords in Portuguese
Câncer de mama
Fatores prognósticos
HIF-1-alfa
Quimioterapia neoadjuvante
Status axilar
Abstract in Portuguese
Objetivos: Determinar a expressão imunohistoquímica do fator indutor de hipóxia 1-alfa (HIF-1-alfa) e suas variáveis associadas em pacientes com câncer de mama localmente avançado. Pacientes e método: Vinte e sete mulheres foram biopsiadas para diagnóstico histopatológico do carcinoma mamário e submetidas a tratamento quimioterápico pré-cirúrgico. Analisou-se a associação do HIF-1-alfa com idade, tamanho tumoral, grau histológico, estadio clínico, status hormonal e axilar, resposta clínica e patológica após tratamento quimioterápico, expressão do receptor de estrogênio, progesterona e cerbB2. Resultados: A expressão de HIF-1-alfa foi presente em 66,7% das pacientes. O único fator associado à sua presença foi o status axilar positivo (p=0,02), tendo permanecido durante a análise univariada. As demais variáveis não apresentaram associação estatisticamente significante. Conclusão: Existe uma associação estatisticamente significante entre o acometimento linfonodal e a presença de HIF-1-alfa em pacientes com câncer de mama localmente avançado.
Title in English
Immunohistochemical expression of hypoxia-inducible factor 1-alpha in locally advanced breast cancer patients
Keywords in English
Axillary status
Breast cancer
HIF-1-alpha
Neoadjuvant chemotherapy
Prognostic factors
Abstract in English
Objectives: To assess the expression of HIF-1 and its associated variables with locally advanced breast cancer (LABC) patients. Methods: Twenty-seven women were submitted to incisional biopsy for histopathological diagnosis of breast carcinoma and undertaken to neoadjuvant chemotherapy (NACT). It was studied the association of HIF-1 with age, tumoral size, histological grade, clinical stage, hormonal and axillary status, clinical and pathological response after NACT, expression of estrogen and progesterone receptors, as well as the presence of cerbB2 antigen. Results: HIF-1-alpha expression was found in 66.7% of patients. Only axillary status was the associated factor with its presence (p=0.02), and remained after univariate analysis. The others did not present any significant statistically difference. Conclusion: There is a significant statistically association between axillary status and HIF-1-alpha expression in LABC patients.
 
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Publishing Date
2015-05-25
 
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