Avaliação da influência dos polimorfismos no gene do fator decrescimento endotelial vascular e seu receptor na etiologia da endometriose

In: reponame:Repositório Institucional da FIOCRUZ (ARCA) · 2016 · pp. 181 · W2963641517
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Abstract

Endometriosis is considered a complex diseases influenced by both genetic and environmental factors. The angiogenesis via signaling vascular endothelial growth factor (VEGF) and its kinase insert domain receptor (KDR), is a crucial process in the establishment and progression of endometriosis. Single nucleotide polymorphisms (SNPs) in VEGF and KDR genes can influence the development of the disease. This study aimed to evaluate the role of VEGF (- 2578C>A, -460T>C, -1154G>A +405G>C and +936C>T) and KDR (-604T>C, 1192C>T and 1719T>A) SNPs in the etiology of endometriosis. The study population consisted of 293 women with histopathological diagnosis of endometriosis (cases) and 223 women without laparoscopic evidence of disease (controls). Genotyping of the studied SNPs was performed by polymerase chain reaction (PCR) in real time using the TaqMan system. Logistic regression was used, being obtained odds ratios (OR) and confidence intervals (95% CI) to evaluate the associations of the studied SNPs and the development of endometriosis, and the presence of symptoms. Positive association of VEGF -2578C>A and -1154G>A SNPs with the development of endometriosis was observed (OR: 1,88; 95% CI: 1,06 - 3,36; OR: 1,59; 95% CI: 1,03 - 2,45, respectively), whereas VEGF+405G>C and KDR1192C>T SNPs were negatively associated with the disease (OR: 0,66; 95% CI: 0,43 - 1.00; OR: 0,56; 95% CI: 0,39 - 0,81, respectively). It was found a protective effect of VEGF (CTGC, ATGG and GGCC) and KDR (TTT and CTA) haplotypes susceptibility to endometriosis; and an increased risk of VEGF (ACAG) and KDR (CCA and TCA) haplotypes with the development of the disease. Negative association was found in the combined genotypes of VEGF and KDR with the development of endometriosis and the presence of symptoms (dysmenorrhea, pelvic pain, dyspareunia and urinary symptoms). It was also carried out a systematic review using the STROBE system on the association of VEGF and KDR SNPs in the development of endometriosis, and describes the methodological differences of case-control studies. In conclusion VEGF and KDR SNPs are associated with the development of endometriosis and its symptoms, suggesting that signaling pathway, VEGF-KDR, is an important factor in the etiology of the disease. This study serves as a database for future applications for the development of biomarkers for the diagnosis and / or prognosis of endometriosis.
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A endometriose é considerada uma doença complexa, influenciada tanto por fatores genéticos como ambientais. A angiogênese via sinalização do fator de crescimento endotelial vascular (VEGF) e do seu receptor de domínio de inserção da quinase (KDR), é um processo crucial no estabelecimento e progressão da endometriose. Polimorfismos de um único nucleotídeo (SNP) nos genes VEGF e KDR podem influenciar no desenvolvimento da doença. O presente estudo teve como objetivo avaliar o papel dos SNPs do VEGF (-2578C>A, -460T>C, - 1154G>A, +405G>C e +936C>T) e do KDR (-604 T>C, 1192C>T e 1719T>A) na etiologia da endometriose. A população do estudo foi composta por 293 mulheres com diagnóstico histopatologico de endometriose (casos) e 223 mulheres sem a evidência laparoscópica da doença (controle). A genotipagem dos SNPs estudados foi realizada pela técnica de reação em cadeia da polimerase (PCR) em tempo real utilizando o sistema TaqMan. Foi utilizado uma regressão logística, sendo obtidas razões de chances (OR) e intervalos de confiança (IC 95%) para avaliar as associações dos SNPs estudados e o desenvolvimento da endometriose, assim na presença dos sintomas. Foi observada uma associação positiva dos SNPs VEGF -2578C>A e -1154G>A (OR: 1,88; 95% IC: 1,06 - 3,36; OR: 1,59; 95% IC: 1,03 - 2,45, respectivamente) com o desenvolvimento da endometriose, enquanto que os SNPs VEGF +405G>C e KDR 1192C>T (OR: 0,66; 95% IC: 0,43 - 1.00; OR: 0,56; 95% IC: 0,39 - 0,81, respectivamente) foram associados negativamente com a doença. Verificou-se um efeito protetor dos haplótipos de VEGF (CTGC, ATGG e CCGG) e KDR (TTT e CTA) com a susceptibilidade da endometriose; e um risco aumentado dos haplótipos de VEGF (ACAG) e KDR (TCA e CCA) com o desenvolvimento da doença. Uma associação negativa foi encontrada nos genótipos combinados de VEGF e KDR com o desenvolvimento da endometriose e com a presença dos sintomas (dismenorreia, dor pélvica, dispareunia e sintomas urinários). Realizou-se também uma revisão sistemática, utilizando o sistema STROBE, sobre a associação dos SNPs de VEGF e KDR no desenvolvimento da endometriose, além de descrever as diferenças metodológicas dos estudos caso-controle. Como conclusão os SNPs de VEGF e KDR estão associados com o desenvolvimento da endometriose e seus sintomas, sugerindo que a via de sinalização, VEGF-KDR, é um importante fator na etiologia da doença. Este estudo serve como base de dados para futuras aplicações que visem o desenvolvimento de biomarcadores para o diagnóstico e/ou prognóstico da endometriose. item.page.abstracten Endometriosis is considered a complex diseases influenced by both genetic and environmental factors. The angiogenesis via signaling vascular endothelial growth factor (VEGF) and its kinase insert domain receptor (KDR), is a crucial process in the establishment and progression of endometriosis. Single nucleotide polymorphisms (SNPs) in VEGF and KDR genes can influence the development of the disease. This study aimed to evaluate the role of VEGF (- 2578C>A, -460T>C, -1154G>A +405G>C and +936C>T) and KDR (-604T>C, 1192C>T and 1719T>A) SNPs in the etiology of endometriosis. The study population consisted of 293 women with histopathological diagnosis of endometriosis (cases) and 223 women without laparoscopic evidence of disease (controls). Genotyping of the studied SNPs was performed by polymerase chain reaction (PCR) in real time using the TaqMan system. Logistic regression was used, being obtained odds ratios (OR) and confidence intervals (95% CI) to evaluate the associations of the studied SNPs and the development of endometriosis, and the presence of symptoms. Positive association of VEGF -2578C>A and -1154G>A SNPs with the development of endometriosis was observed (OR: 1,88; 95% CI: 1,06 - 3,36; OR: 1,59; 95% CI: 1,03 - 2,45, respectively), whereas VEGF+405G>C and KDR1192C>T SNPs were negatively associated with the disease (OR: 0,66; 95% CI: 0,43 - 1.00; OR: 0,56; 95% CI: 0,39 - 0,81, respectively). It was found a protective effect of VEGF (CTGC, ATGG and GGCC) and KDR (TTT and CTA) haplotypes susceptibility to endometriosis; and an increased risk of VEGF (ACAG) and KDR (CCA and TCA) haplotypes with the development of the disease. Negative association was found in the combined genotypes of VEGF and KDR with the development of endometriosis and the presence of symptoms (dysmenorrhea, pelvic pain, dyspareunia and urinary symptoms). It was also carried out a systematic review using the STROBE system on the association of VEGF and KDR SNPs in the development of endometriosis, and describes the methodological differences of case-control studies. In conclusion VEGF and KDR SNPs are associated with the development of endometriosis and its symptoms, suggesting that signaling pathway, VEGF-KDR, is an important factor in the etiology of the disease. This study serves as a database for future applications for the development of biomarkers for the diagnosis and / or prognosis of endometriosis. Fundação Oswaldo Cruz. Escola Nacional de Saúde Pública item.page.degreedate 2016 item.page.degreelocal Rio de Janeiro/RJ item.page.degreeprogram Programa de Pós-Graduação em Saúde Pública e Meio Ambiente Citation CARDOSO, Jéssica Vilarinho. Avaliação da influência dos polimorfismos no gene do fator decrescimento endotelial vascular e seu receptor na etiologia da endometriose. 2016. 181 f. Dissertação (Mestrado em Saúde Pública e Meio Ambiente) - Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz, Rio de Janeiro, 2016.

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