CpG hypomethylation at proximal promoter and 5’UTR along with IL6 signaling loop associates with MYD88 upregulation in epithelial ovarian cancer

Abstract MYD88 is an IL-6 primary response gene and, its upregulation of expression has been shown to be a poor prognostic factor in epithelial ovarian cancer (EOC). We investigated the effects of CpG methylation at the proximal promoter/5’UTR and IL-6/SP1/IRF1 signaling on upregulation of MYD88 and...

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Main Authors: Junyang Li, Bingjie Mei, Yi Zhu, Jianmei Huang, Meiying Li, Dengfeng Wang, Jianming Huang, Guonan Zhang
Format: Article
Language:English
Published: Nature Portfolio 2024-12-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-024-81975-x
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author Junyang Li
Bingjie Mei
Yi Zhu
Jianmei Huang
Meiying Li
Dengfeng Wang
Jianming Huang
Guonan Zhang
author_facet Junyang Li
Bingjie Mei
Yi Zhu
Jianmei Huang
Meiying Li
Dengfeng Wang
Jianming Huang
Guonan Zhang
author_sort Junyang Li
collection DOAJ
description Abstract MYD88 is an IL-6 primary response gene and, its upregulation of expression has been shown to be a poor prognostic factor in epithelial ovarian cancer (EOC). We investigated the effects of CpG methylation at the proximal promoter/5’UTR and IL-6/SP1/IRF1 signaling on upregulation of MYD88 and prognosis in EOC. We assessed CpG methylation at the proximal promoter/5’UTR of MYD88 using bisulfite sequencing/PCR in 103 EOC patients, 28 normal ovarian tissues and two EOC cell lines with differential expression of MYD88 and identified the impact of the level of CpG methylation on MYD88 upregulation by SP1/IRF1 with knockdown or blockade of IL-6. The proximal promoter/5’UTR of MYD88 was significantly hypomethylated in 75 EOC tissues compared to 28 normal ovarian tissues (P < 0.001). CpG hypomethylation was relevant to MYD88 upregulation in 75 EOC cases (R2 = 0.4376; P < 0.001). Of them, 38 cases with m5CpGlow/MYD88high/IL-6high were associated with reduced progression-free/overall survival compared to 37 cases with m5CpGhigh/MYD88low/IL-6low (P < 0.01). Knockdown of IL-6 or blockade with IL-6 receptor McAb attenuated MYD88 upregulation by SP1/IRF1 signaling in EOC cells with MYD88high (P < 0.001). In conclusion, CpG hypomethylation at the proximal promoter/5’UTR contributes to MYD88 upregulation in EOC via IL-6/SP1/IRF1 pathway.
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spelling doaj-art-8a63932c64664ed7af0ea780262bb85a2025-08-20T02:39:38ZengNature PortfolioScientific Reports2045-23222024-12-0114111310.1038/s41598-024-81975-xCpG hypomethylation at proximal promoter and 5’UTR along with IL6 signaling loop associates with MYD88 upregulation in epithelial ovarian cancerJunyang Li0Bingjie Mei1Yi Zhu2Jianmei Huang3Meiying Li4Dengfeng Wang5Jianming Huang6Guonan Zhang7Department Gynecological Oncology, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of ChinaDepartment Gynecological Oncology, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of ChinaDepartment Gynecological Oncology, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of ChinaDepartment Gynecological Oncology, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of ChinaBiochemistry and Molecular Biology, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of ChinaDepartment Gynecological Oncology, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of ChinaBiochemistry and Molecular Biology, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of ChinaDepartment Gynecological Oncology, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of ChinaAbstract MYD88 is an IL-6 primary response gene and, its upregulation of expression has been shown to be a poor prognostic factor in epithelial ovarian cancer (EOC). We investigated the effects of CpG methylation at the proximal promoter/5’UTR and IL-6/SP1/IRF1 signaling on upregulation of MYD88 and prognosis in EOC. We assessed CpG methylation at the proximal promoter/5’UTR of MYD88 using bisulfite sequencing/PCR in 103 EOC patients, 28 normal ovarian tissues and two EOC cell lines with differential expression of MYD88 and identified the impact of the level of CpG methylation on MYD88 upregulation by SP1/IRF1 with knockdown or blockade of IL-6. The proximal promoter/5’UTR of MYD88 was significantly hypomethylated in 75 EOC tissues compared to 28 normal ovarian tissues (P < 0.001). CpG hypomethylation was relevant to MYD88 upregulation in 75 EOC cases (R2 = 0.4376; P < 0.001). Of them, 38 cases with m5CpGlow/MYD88high/IL-6high were associated with reduced progression-free/overall survival compared to 37 cases with m5CpGhigh/MYD88low/IL-6low (P < 0.01). Knockdown of IL-6 or blockade with IL-6 receptor McAb attenuated MYD88 upregulation by SP1/IRF1 signaling in EOC cells with MYD88high (P < 0.001). In conclusion, CpG hypomethylation at the proximal promoter/5’UTR contributes to MYD88 upregulation in EOC via IL-6/SP1/IRF1 pathway.https://doi.org/10.1038/s41598-024-81975-xEpithelial ovarian cancerMyeloid differentiation factor 88Interleukin-6Specificity protein 1Interferon regulatory factor 1CpG methylation
spellingShingle Junyang Li
Bingjie Mei
Yi Zhu
Jianmei Huang
Meiying Li
Dengfeng Wang
Jianming Huang
Guonan Zhang
CpG hypomethylation at proximal promoter and 5’UTR along with IL6 signaling loop associates with MYD88 upregulation in epithelial ovarian cancer
Scientific Reports
Epithelial ovarian cancer
Myeloid differentiation factor 88
Interleukin-6
Specificity protein 1
Interferon regulatory factor 1
CpG methylation
title CpG hypomethylation at proximal promoter and 5’UTR along with IL6 signaling loop associates with MYD88 upregulation in epithelial ovarian cancer
title_full CpG hypomethylation at proximal promoter and 5’UTR along with IL6 signaling loop associates with MYD88 upregulation in epithelial ovarian cancer
title_fullStr CpG hypomethylation at proximal promoter and 5’UTR along with IL6 signaling loop associates with MYD88 upregulation in epithelial ovarian cancer
title_full_unstemmed CpG hypomethylation at proximal promoter and 5’UTR along with IL6 signaling loop associates with MYD88 upregulation in epithelial ovarian cancer
title_short CpG hypomethylation at proximal promoter and 5’UTR along with IL6 signaling loop associates with MYD88 upregulation in epithelial ovarian cancer
title_sort cpg hypomethylation at proximal promoter and 5 utr along with il6 signaling loop associates with myd88 upregulation in epithelial ovarian cancer
topic Epithelial ovarian cancer
Myeloid differentiation factor 88
Interleukin-6
Specificity protein 1
Interferon regulatory factor 1
CpG methylation
url https://doi.org/10.1038/s41598-024-81975-x
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