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Master's Dissertation
DOI
https://doi.org/10.11606/D.17.2010.tde-27092013-162842
Document
Author
Full name
Viviane Fernandes Schiavon
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
Ribeirão Preto, 2010
Supervisor
Committee
Marana, Heitor Ricardo Cosiski (President)
Santos, Cesar Cabello dos
Tiézzi, Daniel Guimarães
Title in Portuguese
Expressão de VEGF em tumores de mama de pacientes submetidas a quimioterapia neoadjuvante
Keywords in Portuguese
Câncer de mama
fatores preditivo
quimioterapia neoadjuvante
VEGF
Abstract in Portuguese
Objetivos: A avaliação da angiogênese no câncerde mama é um importante fator prognóstico e preditivo. A expressão do fator de crescimento vascular endotelial (VEGF) tem sido relatada como metodologia adequada posto sua relação com a densidade microvascular tumoral (MVD), a dosagem de VEGF plasmático assim como com a expressão de outros genes relacionados a angiogênese. Pacientes e Métodos: este estudo avaliou 30 pacientes com diagnóstico de carcinoma de mama localmente avançado tratadas inicialmente pela quimioterapia neoadjuvante e foi correlacionada a expressão da proteína VEGF e outros caracteres clínico-patológicos destas pacientes. Resultados: A expressão da proteína VEGF foi significamente correlacionada com a resposta patológica completa (p= 0,04). Não houve correlação entre expressão de VEGF e tamanho tumoral (p= 0,76), envolvimento axilar (p= 0,70), RP (p= 0,92), RE (p= 0,98), superexpressão de HER-2 (p= 0,79), grau tumoral (p= 0,68) ou menopausa (p= 0,07). Conclusões: A expressão de VEGF foi consistentemente associada a resposta patológica completa e pode ser utilizada como fator preditivo para selecionar pacientes com CMLA para tratamento primário pela quimioterapia.
Title in English
VEGF expression in breast tumors from patients undergoing neoadjuvant chemotherapy
Keywords in English
breast cancer
neoadjuvant chemotherapy
predictive factor
VEGF
Abstract in English
Purpose: The assessment of angiogenesis in breast canceris a import predictive and prognostic factor. Vascular endothelial growth factor (VEGF) expression has been reported as reliable methodology to evaluate the relationship between microvascular density (MVD). VEGF plasma level and the expression of other angiogenesis related genes. Patients and Methods: This study examined 30 locally advanced breast cancer patients submitted to neoadjuvant chemotherapy. We analyzed the correlation between VEGF protein expression and clinicopathologicalcharacteristics. Results: VEGF expression was significantly correlated to complete pathological response (p= 0,04). There were no correlation between a VEGF expression and tumor size (p= 0,76), axillary involvement (p= 0,70), PR (p= 0,92), ER (p=0,96), HER-2 overexpression (p= 0,79), tumor grade (p=0,68) or menopausal status (p= 0,07). Conclusion: VEGF expression was consistently associated to complete pathological response and may be used as predictive factor to select patients to primary chemotherapy in LABC patients.
 
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Publishing Date
2014-09-02
 
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