Avaliação de biomarcadores moleculares em mulheres com câncer de ovário

• Autor(a) principal: Paula, Sálua Oliveira Calil de [UNESP]
• Data de Publicação: 2014
• Tipo de documento: Tese
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/114040
• topic: Ovarios - Câncer - Tratamento; Inflamação; Citocinas; Quimiocinas; Marcadores biologicos de tumor; Ovaries Tumors

Introduction : Ovarian cancer ( OC) is the leading cause of death from gynecological cancer in developed countries . Currently , a dualistic classification model was proposed .Type I tumors are low-grade , indolent and have stable mutations . Type II tumors are high grade and more aggressive . Moreover, in an attempt to understand the process of carcinogenesis , several biomarkers have been studied as microparticles (MPs ) , cytokines and chemokines. The purpose of the study was to evaluate the levels of circulating soluble biomarkers-microparticles, cytokines and chemokines- to characterize the pro-inflammatory/modulatory immune response in women with OC. The correlation between the biomarker levels and the clinico-pathological parameters were also analyzed. Methods : We evaluated 26 women with OC and 16 women without evidence of malignancy ( control group ) . Plasma samples and tumor tissue were collected . The assessment of inflammatory markers was performed by measurement of cytokine (IL -1- β , IL-2 , IL-6 , IL-10 , IL-12 , IL -17A , TNF and IFN –gamma), chemokines ( CXCL8 , CXCL -9 , CXCL 10 , CCL 2 , CCL5 ) and microparticles (neutrophils , leukocytes, monocytes, erythrocytes, endothelium , platelets and lymphocytes) by flow cytometry / CBA ( cytometric Bead Array) . Differences among groups were evaluated by Kruskal - Wallis or Mann - Whitney and survival by Cox Regression . Differences with p < 0.05 were considered significant. Results: There was no difference between groups regarding age , parity and menopause. In the group of women with OC , 10 ( 38.5 % ) were stage I / II and 16 ( 61.5 % ) were stage III / IV . Concerning tumor type , according to the new classification , 8 (30.8 % ) were type I and 18 ( 69.2 % ) were type II . Optimal cytoreduction was achieved in 15 ( 57.7 % ) women with OC . CA 125 values were significantly different between groups . There were no deaths in women with type I tumors. Stratifying by ...