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Evaluation of
Mehran Dehghanian1,2, Ghafour Yarahmadi1,2, Reyhaneh Sadat Sandoghsaz2
1Department of Medical Genetics, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Background:
Endometriosis is a female reproductive system disease in which the endometrial tissue is found in other women's organs. Various factors are effective in the development of endometriosis, and because of the interaction of genetics and environmental factors, this disease is a multi-factorial disease. MAPK/ERK and PI3K/Akt/mTOR pathways are activated by growth factors and steroid hormones and are known as two important pathways involved in the processes of growth, proliferation, and survival of endometriosis cells. Raps, monomeric GTPase of the Ras family, are able to activate these pathways independent of Ras. The goal of our study was to evaluate the expression level of Rap1GAP and EPAC1 genes as two important RapGAPs (GTPase-activating proteins) and RapGEFs (guanine nucleotide exchange factors), respectively, in endometriosis tissues and normal endometrium tissues.
Materials And Methods:
In this study, 15 samples of women without signs of endometriosis were taken as control samples. Fifteen ectopic and 15 eutopic samples were taken from women with endometriosis using laparoscopic surgery. The expression of EPAC1 and Rap1GAP genes was investigated by the real-time polymerase chain reaction technique, and the results were analyzed by one-way ANOVA test.
Results:
EPAC1 upregulated significantly in ectopic tissues compared to eutopic and control tissues. Rap1GAP expression was lower in ectopic tissues compared to control and eutopic tissues.
Conclusions:
Based on these results, it may be concluded that changes in the expression of the Rap1GAP and Epca1 genes may play a role in the pathways involved in the pathogenesis, displacement, and migration of endometriosis cells.
Insights
Endometriosis involves endometrial tissue outside the uterus. Researchers found EPAC1 gene expression increased, while Rap1GAP gene expression decreased in endometriosis tissues, suggesting their role in disease development.
Area of Science:
- Reproductive biology
- Molecular genetics
- Cellular signaling
Background:
- Endometriosis is a complex, multifactorial disease involving endometrial tissue outside the uterus.
- Key signaling pathways like MAPK/ERK and PI3K/Akt/mTOR are implicated in endometriosis cell growth and survival.
- Rap GTPases can activate these pathways, independent of Ras.
Purpose of the Study:
- To investigate the expression levels of Rap1GAP and EPAC1 genes in endometriosis tissues.
- To compare gene expression between ectopic, eutopic, and normal endometrial tissues.
Main Methods:
- Real-time polymerase chain reaction (PCR) was used to analyze gene expression.
- Samples included 15 ectopic, 15 eutopic, and 15 control endometrial tissues.
- Statistical analysis was performed using one-way ANOVA.
Main Results:
- EPAC1 gene expression was significantly upregulated in ectopic endometriosis tissues compared to eutopic and control tissues.
- Rap1GAP gene expression was significantly downregulated in ectopic tissues compared to both eutopic and control tissues.
Conclusions:
- Altered expression of Rap1GAP and EPAC1 may contribute to the pathogenesis of endometriosis.
- These gene expression changes could influence cell migration and displacement in endometriosis.
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