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Avaliação de quimiocinas séricas em mulheres com câncer epitelial de ovário

Authors: Falcão Júnior, João Oscar de Almeida;

Avaliação de quimiocinas séricas em mulheres com câncer epitelial de ovário

Abstract

O sistema imune, por meio da coordenação do funcionamento de várias células e proteínas, além de proteger contra infecções, atua na resposta do organismo contra células neoplásicas. As quimiocinas associam-se à modulação da resposta imune e apresentam importante papel na mediação do tráfego celular. O objetivo deste estudo é avaliar as quimiocinas, CCL2/MCP-1, CCL3/ MIP-1α, CCL4/MIP-1β, CCL5/RANTES e CXCL 8/IL-8 em mulheres com câncer epitelial de ovário (CEO). Métodos: Foram estudadas prospectivamente 16 pacientes com CEO e 18 pacientes sadias sem evidências de neoplasias malignas (grupo controle). As pacientes com CEO foram submetidas à laparotomia para citoredução. As dosagens das quimiocinas foram realizadas por meio da técnica de ensaio citofluorométrico com microesferas fluorescentes - Cytometric bead array (CBA) Foram utilizados os teste de Mann-Whitney e Kendall’s tau quando apropriados, sendo o valor de p<0,05 considerado significativo. Resultados: A idade das pacientes variou de 23 a 89 anos (58,7 + 2,3 anos). O estadiamento do tumor (FIGO) foi I em 4 casos (25%), III em 5 casos (31,3%) e estádio IV em 7 casos (43,8%). As dosagens séricas de CCL2/MCP-1 e CCL4/MIP-1β foram menores nas pacientes com CEO em comparação com o grupo controle (p=0,021 e p=0,031; respectivamente). Não houve diferença entre os grupos nos níveis de CCL3/ MIP-1α, CCL5/RANTES e CXCL 8/IL-8. O estadiamento tumoral não se associou com os níveis séricos das quimiocinas. A dosagem sérica de CA-125 não apresentou correlação com as quimiocinas estudadas. A resposta imune pode estar associada ao estabelecimento/manutenção do CEO e o estudo das quimiocinas pode ser um mecanismo para esta avaliação.

The dynamics of the host immune system enables defense against pathogenic agents and neoplasic cells through a wide range of mechanisms. Because chemokines are responsible for modulating the immune response in leukocyte migration processes to epithelial ovarian cancer (EOC)- affected tissues, we aimed to investigate CCL2/MCP-1, CCL3/ MIP-1 , CCL4/MIP-1 , CCL5/RANTES and CXCL 8/IL-8 in women with EOC. Methods: Sixteen patients diagnosed with EOC and 18 healthy women with no evidence of malign neoplasia (control group) aged from 23 to 89 years (mean SEM: 58.7+2.3 years) were included. The EOC patients underwent laparotomy and debulking surgery. Chemokines dosage assays were made using Cytometric bead array (CBA). Statistical analysis was performed using Mann-Whitney and Kendall’s tau, and p<0.05 was regarded as significant. Results: The tumor staging (FIGO) was classified into: I in 4 cases (25%), III in 5 cases (31.3%) and stage IV in 7 cases (43.8%). Sera chemokine dosage of CCL2/MCP-1 and CCL4/MIP-1 were lower in EOC patients compared to the control group (p=0,021 and p=0,031; respectively). No significant difference was observed in the levels of CCL3/ MIP-1 , CCL5/RANTES and CXCL 8/IL-8 between groups. No association between the chemokines analyzed and the epithelial ovarian cancer staging was found, and CA125 was not correlated with chemokine dosage. Conclusion: The establishment of epithelial ovarian cancer may be correlated with the host immune response dynamics, and the study of chemokines could be regarded as a valid diagnostic tool for evaluating the extent of the disease.

Pós-graduação em Ginecologia, Obstetrícia e Mastologia - FMB

Country
Brazil
Keywords

Quimiocinas, Ovarios - Câncer

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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Green
Related to Research communities
Cancer Research