Expression of hypoxia-inducible factor 1α in osteosarcoma and its value in predicting chemosensitivity / 中华肿瘤杂志
Chinese Journal of Oncology
;
(12): 899-904, 2012.
Artículo
en Chino
| WPRIM
| ID: wpr-284261
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the prognostic values of HIF-1α, APE1, VEGF, and COX-2 protein expressions and their predictive value of tumor necrosis rate and prognosis in osteosarcoma, as well as their interrelationships.</p><p><b>METHODS</b>Formalin-fixed paraffin-embedded tissue samples were obtained from patients with osteosarcoma. Immunohistochemical assay was performed in pre-chemotherapy samples to determine the HIF-1α, VEGF, APE1, and COX-2 protein expression levels. Hematoxylin-eosin staining was used in post-operative samples to determine the tumor necrosis rate. Univariate and multivariate analyses were used to assess the impact of protein expression on prognosis.</p><p><b>RESULTS</b>Tumor tissues were obtained from 49 patients. Their median follow up was 29 months. HIF-1α was significantly correlated to every protein we tested VEGF (P = 0.032), APE1 (P < 0.001), and COX-2 (P < 0.001). HIF-1α protein expression had a significant impact on disease free survival (P = 0.006). Expression of HIF-1α had a sensitivity of 64.7% and a specificity of 71.9% for poor pathological response (< 90% of tumor necrosis) versus good pathological response to chemotherapy (≥ 90% necrosis).</p><p><b>CONCLUSION</b>Expression of HIF-1α is a predictor of tumor response to neoadjuvant chemotherapy and outcome in osteosarcoma and is correlated with VEGF, APE1, and COX-2 expression.</p>
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Patología
/
Neoplasias Óseas
/
Protocolos de Quimioterapia Combinada Antineoplásica
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Osteosarcoma
/
Estudios de Seguimiento
/
Quimioterapia Adyuvante
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Supervivencia sin Enfermedad
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Terapia Neoadyuvante
/
ADN-(Sitio Apurínico o Apirimidínico) Liasa
/
Factor A de Crecimiento Endotelial Vascular
Tipo de estudio:
Estudio observacional
/
Estudio pronóstico
/
Factores de riesgo
Límite:
Adolescente
/
Adulto
/
Anciano
/
Niño
/
Femenino
/
Humanos
/
Masculino
Idioma:
Chino
Revista:
Chinese Journal of Oncology
Año:
2012
Tipo del documento:
Artículo
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