Metformin Prevents Endothelial Dysfunction in Endometriosis through Downregulation of ET-1 and Upregulation of eNOS

This study aimed to evaluate if the treatment with metformin affects the morphologic structure, endothelial function, angiogenesis, inflammation and oxidation-responsive pathways in the heart of mice with surgically induced endometriosis. B6CBA/F1 mice (n = 37) were divided into four groups; Sham (S...

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Main Authors: Ana Filipa Martins, Ana Catarina Neto, Adriana Raquel Rodrigues, Sandra Marisa Oliveira, Cláudia Sousa-Mendes, Adelino Leite-Moreira, Alexandra Maria Gouveia, Henrique Almeida, Delminda Neves
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Biomedicines
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Online Access:https://www.mdpi.com/2227-9059/10/11/2782
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author Ana Filipa Martins
Ana Catarina Neto
Adriana Raquel Rodrigues
Sandra Marisa Oliveira
Cláudia Sousa-Mendes
Adelino Leite-Moreira
Alexandra Maria Gouveia
Henrique Almeida
Delminda Neves
author_facet Ana Filipa Martins
Ana Catarina Neto
Adriana Raquel Rodrigues
Sandra Marisa Oliveira
Cláudia Sousa-Mendes
Adelino Leite-Moreira
Alexandra Maria Gouveia
Henrique Almeida
Delminda Neves
author_sort Ana Filipa Martins
collection DOAJ
description This study aimed to evaluate if the treatment with metformin affects the morphologic structure, endothelial function, angiogenesis, inflammation and oxidation-responsive pathways in the heart of mice with surgically induced endometriosis. B6CBA/F1 mice (n = 37) were divided into four groups; Sham (S), Metformin (M), Endometriosis (E) and Metformin/Endometriosis (ME). The cross-sectional area of cardiomyocytes was assessed after Hematoxylin–Eosin staining and fibrosis after Picrosirius-Red staining. ET-1, nitric oxide synthases-iNOS and eNOS, and VEGF and VEGFR-2 were detected by immunofluorescence. Semi-quantification of ET-1, eNOS, VEGF, NF-kB, Ikβα and KEAP-1 was performed by Western blotting. MIR199a, MIR16-1, MIR18a, MIR20a, MIR155, MIR200a, MIR342, MIR24-1 and MIR320a were quantified by Real-Time qPCR. The interaction of endometriosis and metformin effects was assessed by a two-way ANOVA test. Compared with the other groups, M-treated mice presented a higher cross-sectional area of cardiomyocytes. Heart fibrosis increased with endometriosis. Treatment of endometriosis with metformin in the ME group downregulates ET-1 and upregulates eNOS expression comparatively with the E group. However, metformin failed to mitigate NF-kB expression significantly incremented by endometriosis. The expression of MIR199a, MIR16-1 and MIR18a decreased with endometriosis, whereas MIR20a showed an equivalent trend, altogether reducing cardioprotection. In summary, metformin diminished endometriosis-associated endothelial dysfunction but did not mitigate the increase in NF-kB expression and cardiac fibrosis in mice with endometriosis.
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spelling doaj.art-e4ec2b7bf18b4def9ac2b00b682e253c2023-11-24T03:50:37ZengMDPI AGBiomedicines2227-90592022-11-011011278210.3390/biomedicines10112782Metformin Prevents Endothelial Dysfunction in Endometriosis through Downregulation of ET-1 and Upregulation of eNOSAna Filipa Martins0Ana Catarina Neto1Adriana Raquel Rodrigues2Sandra Marisa Oliveira3Cláudia Sousa-Mendes4Adelino Leite-Moreira5Alexandra Maria Gouveia6Henrique Almeida7Delminda Neves8Department of Biomedicine-Experimental Biology Unit, Faculty of Medicine of the University of Porto, 4200-319 Porto, PortugalDepartment of Biomedicine-Experimental Biology Unit, Faculty of Medicine of the University of Porto, 4200-319 Porto, PortugalDepartment of Biomedicine-Experimental Biology Unit, Faculty of Medicine of the University of Porto, 4200-319 Porto, PortugalCardiovascular R&D Centre-UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, 4200-319 Porto, PortugalCardiovascular R&D Centre-UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, 4200-319 Porto, PortugalCardiovascular R&D Centre-UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, 4200-319 Porto, PortugalDepartment of Biomedicine-Experimental Biology Unit, Faculty of Medicine of the University of Porto, 4200-319 Porto, PortugalDepartment of Biomedicine-Experimental Biology Unit, Faculty of Medicine of the University of Porto, 4200-319 Porto, PortugalDepartment of Biomedicine-Experimental Biology Unit, Faculty of Medicine of the University of Porto, 4200-319 Porto, PortugalThis study aimed to evaluate if the treatment with metformin affects the morphologic structure, endothelial function, angiogenesis, inflammation and oxidation-responsive pathways in the heart of mice with surgically induced endometriosis. B6CBA/F1 mice (n = 37) were divided into four groups; Sham (S), Metformin (M), Endometriosis (E) and Metformin/Endometriosis (ME). The cross-sectional area of cardiomyocytes was assessed after Hematoxylin–Eosin staining and fibrosis after Picrosirius-Red staining. ET-1, nitric oxide synthases-iNOS and eNOS, and VEGF and VEGFR-2 were detected by immunofluorescence. Semi-quantification of ET-1, eNOS, VEGF, NF-kB, Ikβα and KEAP-1 was performed by Western blotting. MIR199a, MIR16-1, MIR18a, MIR20a, MIR155, MIR200a, MIR342, MIR24-1 and MIR320a were quantified by Real-Time qPCR. The interaction of endometriosis and metformin effects was assessed by a two-way ANOVA test. Compared with the other groups, M-treated mice presented a higher cross-sectional area of cardiomyocytes. Heart fibrosis increased with endometriosis. Treatment of endometriosis with metformin in the ME group downregulates ET-1 and upregulates eNOS expression comparatively with the E group. However, metformin failed to mitigate NF-kB expression significantly incremented by endometriosis. The expression of MIR199a, MIR16-1 and MIR18a decreased with endometriosis, whereas MIR20a showed an equivalent trend, altogether reducing cardioprotection. In summary, metformin diminished endometriosis-associated endothelial dysfunction but did not mitigate the increase in NF-kB expression and cardiac fibrosis in mice with endometriosis.https://www.mdpi.com/2227-9059/10/11/2782cardiac fibrosisendometriosisendothelial dysfunctioninflammationmetformin
spellingShingle Ana Filipa Martins
Ana Catarina Neto
Adriana Raquel Rodrigues
Sandra Marisa Oliveira
Cláudia Sousa-Mendes
Adelino Leite-Moreira
Alexandra Maria Gouveia
Henrique Almeida
Delminda Neves
Metformin Prevents Endothelial Dysfunction in Endometriosis through Downregulation of ET-1 and Upregulation of eNOS
Biomedicines
cardiac fibrosis
endometriosis
endothelial dysfunction
inflammation
metformin
title Metformin Prevents Endothelial Dysfunction in Endometriosis through Downregulation of ET-1 and Upregulation of eNOS
title_full Metformin Prevents Endothelial Dysfunction in Endometriosis through Downregulation of ET-1 and Upregulation of eNOS
title_fullStr Metformin Prevents Endothelial Dysfunction in Endometriosis through Downregulation of ET-1 and Upregulation of eNOS
title_full_unstemmed Metformin Prevents Endothelial Dysfunction in Endometriosis through Downregulation of ET-1 and Upregulation of eNOS
title_short Metformin Prevents Endothelial Dysfunction in Endometriosis through Downregulation of ET-1 and Upregulation of eNOS
title_sort metformin prevents endothelial dysfunction in endometriosis through downregulation of et 1 and upregulation of enos
topic cardiac fibrosis
endometriosis
endothelial dysfunction
inflammation
metformin
url https://www.mdpi.com/2227-9059/10/11/2782
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