Neuronal Apoptosis Inhibitory Protein is Overexpressed in Patients with Unfavorable Prognostic Factors in Breast Cancer
Journal of Korean Medical Science
;
: S17-S23, 2007.
Artigo
em Inglês
| WPRIM
| ID: wpr-79236
ABSTRACT
Neuronal apoptosis inhibitory protein (NAIP) is a recently identified inhibitor of apoptosis protein. However, the clinical relevance of NAIP expression is not completely understood. In an attempt to determine the clinical relevance of NAIP expression in breast cancer, the levels of NAIP and survivin expression were measured in 117 breast cancer samples and 10 normal breast tissues using quantitative reversetranscriptase-polymerase chain reaction. While there was no evidence of NAIP expression in the normal breast tissue, NAIP was expressed in all breast cancer samples. The level of NAIP expression in breast cancer was significantly higher (257 times) than in the universal tumor control. There was a strong correlation between the level of NAIP expression and the level of survivin expression (p=0.001). The level of NAIP expression in patients with a large tumor (> or =T2) and patients with an unfavorable histology (nuclear grade III) was significantly higher than in those patients with a small tumor (T1) and patients with a favorable histology (nuclear grade I, II) (p=0.026 and p=0.050, respectively). Although the level of NAIP expression was higher in patients with other unfavorable prognostic factors, it was not significant. The three-year relapse-free survival rate was not significantly the patients showing high NAIP expression and patients showing low NAIP expression (86.47+/-4.79% vs. 78.74+/-6.57%). Further studies should include the expressions of NAIP in a larger number of patients and for a longer period of follow-up to evaluate correlation with metastasis and treatment outcome. In conclusion, NAIP is overexpressed in breast cancer patients with unfavorable clinical features such as stage and tumor size, suggesting that NAIP would play a role in the disease manifestation.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Prognóstico
/
Neoplasias da Mama
/
RNA Mensageiro
/
RNA Neoplásico
/
Estudos de Casos e Controles
/
Expressão Gênica
/
Resultado do Tratamento
/
Intervalo Livre de Doença
/
Reação em Cadeia da Polimerase Via Transcriptase Reversa
/
Proteína Inibidora de Apoptose Neuronal
Tipo de estudo:
Estudo observacional
/
Estudo prognóstico
/
Fatores de risco
Limite:
Adulto
/
Idoso
/
Feminino
/
Humanos
Idioma:
Inglês
Revista:
Journal of Korean Medical Science
Ano de publicação:
2007
Tipo de documento:
Artigo
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