The retinol-binding protein receptor STRA6 contributes to the pathogenesis of adenomyosis via Wnt/β-catenin pathway depression
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ABSTRACT:
ORGANISM(S): Oryctolagus cuniculus
PROVIDER: GSE242149 | GEO | 2023/09/06
REPOSITORIES: GEO
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Project description:Adenomyosis is an estrogen-dependent disease in which endometrial glands and stroma are pathologically demonstrated in the myometrium. Despite its prevalence and severity of symptoms, the precise etiology and physiopathology of adenomyosis is not well understood.Vitamin defciency increase in women with adenomyosis. Much less is known about the mechanism of their relationship. We found the retinol-binding protein receptor STRA6 upregulation in uterinespiral arteries from adenomyosis patients. The increased estrogen level promote the STRA6 expression, resulting the depressed Wnt/β-catenin signaling mediated by FASN/GSK-3β interaction. Overexpression of STRA6 induced epithelial to mesenchymal transition process. miR-1249-5p achieved its negative function by regulating the target gene through 3' UTR.The depletion of STRA6 in vivo alleviated the pathogenesis of adenomyosis. These results reveal a hitherto undesribed positive feedback loop between estrogen and STRA6 in adenomyosis pathogenesis. Components of vitamin A metabolism network have more complex activities than simply controlling or transferring VA compounds between different cells.
2023-09-06 | GSE242148 | GEO
Project description:Adenomyosis is an estrogen-dependent disease in which endometrial glands and stroma are pathologically demonstrated in the myometrium. Despite its prevalence and severity of symptoms, the precise etiology and physiopathology of adenomyosis is not well understood.Vitamin defciency increase in women with adenomyosis. Much less is known about the mechanism of their relationship. We found the retinol-binding protein receptor STRA6 upregulation in uterinespiral arteries from adenomyosis patients. The increased estrogen level promote the STRA6 expression, resulting the depressed Wnt/β-catenin signaling mediated by FASN/GSK-3β interaction. Overexpression of STRA6 induced epithelial to mesenchymal transition process. miR-1249-5p achieved its negative function by regulating the target gene through 3' UTR.The depletion of STRA6 in vivo alleviated the pathogenesis of adenomyosis. These results reveal a hitherto undesribed positive feedback loop between estrogen and STRA6 in adenomyosis pathogenesis. Components of vitamin A metabolism network have more complex activities than simply controlling or transferring VA compounds between different cells.
2023-09-06 | GSE242145 | GEO
Project description:The retinol-binding protein receptor STRA6 contributes to the pathogenesis of adenomyosis via Wnt/β-catenin pathway depression
| PRJNA1011857 | ENA
Project description:The retinol-binding protein receptor STRA6 contributes to the pathogenesis of adenomyosis via Wnt/β-catenin pathway depression [microRNA]
| PRJNA1011864 | ENA
Project description:The retinol-binding protein receptor STRA6 contributes to the pathogenesis of adenomyosis via Wnt/β-catenin pathway depression [RNA]
| PRJNA1011862 | ENA
Project description:Adenomyosis is defined by the presence of endometrial glands and stroma within the myometrium. Despite its frequent occurrence, the precise aetiology and physiopathology of adenomyosis is still unknown. WNT/?-catenin signalling molecules are important and should be tightly regulated for uterine function. To investigate the role of ?-catenin signalling in adenomyosis, the expression of ?-catenin was examined. Nuclear and cytoplasmic ?-catenin expression was significantly higher in epithelial cells of human adenomyosis compared to control endometrium. To determine whether constitutive activation of ?-catenin in the murine uterus leads to development of adenomyosis, mice that expressed a dominant stabilized ?-catenin in the uterus were used by crossing PR-Cre mice with Ctnnb1(f(ex3)/+) mice. Uteri of PR(cre) (/+) Ctnnb1(f(ex3)/+) mice displayed an abnormal irregular structure and highly active proliferation in the myometrium, and subsequently developed adenomyosis. Interestingly, the expression of E-cadherin was repressed in epithelial cells of PR(cre) (/+) Ctnnb1(f(ex3)/+) mice compared to control mice. Repression of E-cadherin is one of the hallmarks of epithelial-mesenchymal transition (EMT). The expression of SNAIL and ZEB1 was observed in some epithelial cells of the uterus in PR(cre) (/+) Ctnnb1(f(ex3)/+) mice but not in control mice. Vimentin and COUP-TFII, mesenchymal cell markers, were expressed in some epithelial cells of PR(cre) (/+) Ctnnb1(f(ex3)/+) mice. In human adenomyosis, the expression of E-cadherin was decreased in epithelial cells compared to control endometrium, while CD10, an endometrial stromal marker, was expressed in some epithelial cells of human adenomyosis. These results suggest that abnormal activation of ?-catenin contributes to adenomyosis development through the induction of EMT.
| S-EPMC4105844 | biostudies-literature
Project description:Aberrant Wnt/β-catenin pathway contributes to the development of liver fibrosis. MicroRNAs (MiRNAs) are found to act as regulators of the activation of hepatic stellate cell (HSC) in liver fibrosis. However, whether miRNAs activate Wnt/β-catenin pathway in activated HSCs during liver fibrosis is largely unknown. In this study, we found that Salvianolic acid B (Sal B) treatment significantly inhibited liver fibrosis in CCl4-treated rats, HSC-T6 cells and rat primary HSCs, resulting in the suppression of type I
collagen and alpha-smooth muscle actin. Also, Sal B suppressed HSC activation and cell proliferation in vitro. Interestingly, Sal B treatment induced the inactivation of Wnt/β-catenin pathway, with an increase in P-β-catenin and Wnt inhibitory factor 1 (WIF1). We demonstrated that the anti-fibrotic effects caused by Sal B were, at least in part, via WIF1. Moreover, our study revealed that miR-17-5p was reduced in vivo and in vitro after Sal B treatment. As confirmed by luciferase activity assays, WIF1 was a direct target of miR-17-5p. Notably, the suppression of HSCs induced by Sal B was almost inhibited by miR-17-5p mimics. Collectively, we demonstrated that miR-17-5p activates Wnt/β-catenin pathway to result in HSC activation through inhibiting WIF1 expression.
| S-EPMC4807984 | biostudies-literature
Project description:Dysregulation of dickkopf-related protein 1 (DKK1) expression has been reported in a variety of human cancers. We previously reported that DKK1 was upregulated in hepatocellular carcinoma (HCC). However, the role of DKK1 in HCC remains unclear. This study aimed to investigate the clinical significance and biological functions of DKK1 in HCC. The expression of DKK1 was examined in cirrhotic and HCC tissues by immunohistochemistry and quantitative real-time polymerase chain reaction (qRT-PCR). DKK1 was silenced or overexpressed in HCC cell lines, and in vitro and in vivo studies were performed. Immunohistochemistry revealed that DKK1 was weakly expressed in cirrhotic tissues (8/22, 36.4%) but upregulated in HCC tissues (48/53, 90.6%, cohort 1). Significant upregulation of DKK1 was observed in 57.6% (19/33, cohort 2) of HCC tissues by qRT-PCR, and the expression of DKK1 was associated with tumor size (P = 0.024) and tumor number (P = 0.019). Genetic depletion of DKK1 impaired the proliferation, colony-forming ability, invasion, and tumor formation of HCC cells (HepG2 and HUH-7). Conversely, forced expression of DKK1 increased the proliferation, colony-forming ability, and invasion of HepG2 and HUH-7 cells in vitro and enhanced tumor formation in vivo. Subsequent investigation revealed that the DKK1-mediated proliferation and tumorigenicity of HepG2 and HUH-7 cells is dependent on the Wnt/β-catenin signaling pathway. These findings indicate that DKK1 plays an oncogenic role in HCC by activating the Wnt/β-catenin signaling pathway.
| S-EPMC6895114 | biostudies-literature
Project description:BackgroundHepatocellular Carcinoma (HCC) is a sexually dimorphic cancer, with female sex being independently protective against HCC incidence and progression. The aim of our study was to understand the mechanism of estrogen receptor signaling in driving sex differences in hepatocarcinogenesis.MethodsWe integrated 1,268 HCC patient sample profiles from publicly available gene expression data to identify the most differentially expressed genes (DEGs). We mapped DEGs into a physical protein interaction network and performed network topology analysis to identify the most important proteins. Experimental validation was performed in vitro on HCC cell lines, in and in vivo, using HCC mouse model.ResultsWe showed that the most central protein, ESR1, is HCC prognostic, as increased ESR1 expression was protective for overall survival, with HR=0.45 (95%CI 0.32-0.64, p=4.4E-06), and was more pronounced in women. Transfection of HCC cell lines with ESR1 and exposure to estradiol affected expression of genes involved in the Wnt/β-catenin signaling pathway. ER-α (protein product of ESR1) agonist treatment in a mouse model of HCC resulted in significantly longer survival and decreased tumor burden (p<0.0001), with inhibition of Wnt/β-Catenin signaling. In vitro experiments confirmed colocalization of β-catenin with ER-α, leading to inhibition of β-catenin-mediated transcription of target genes c-Myc and Cyclin D1.ConclusionCombined, the centrality of ESR1 and its inhibition of the Wnt/β-catenin signaling axis provide a biological rationale for protection against HCC incidence and progression in women.
| S-EPMC8645636 | biostudies-literature
Project description:BackgroundCRBP-1, a cytosolic chaperone of vitamin A, is identified in a serious number of cancers; however, its biological role in hepatocellular carcinoma (HCC) needs to be further explored. The aim of our present study is to explore the roles and mechanisms of CRBP-1 in regulating liver cancer by using in vitro and in vivo biology approaches.MethodsThe expression level of CRBP-1 was detected using immunohistochemistry in HCC and matching adjacent non-tumorous liver tissues. Following established stable CRBP-1 overexpressed HCC cell lines, the cell growth and tumorigenicity were investigated both in vitro and in vivo. Intracellular retinoic acid was quantified by ELISA. The relationship between CRBP-1 and WIF1 was validated by using dual luciferase and ChIP analyses.ResultsThe low expression of CRBP-1 was observed in HCC tissues compared to the normal liver tissues, while high CRBP-1 expression correlated with clinicopathological characteristics and increased overall survival in HCC patients. Overexpression of CRBP-1 significantly inhibited cell growth and tumorigenicity both in vitro and in vivo. Moreover, overexpression of CRBP-1 suppressed tumorsphere formation and cancer stemness related genes expression in HCC. Mechanically, CRBP-1 inhibited Wnt/β-catenin signaling pathway to suppress cancer cell stemness of HCC. Furthermore, our results revealed that CRBP-1 could increase the intracellular levels of retinoic acid, which induced the activation of RARs/RXRs leading to the transcriptional expression of WIF1, a secreted antagonist of the Wnt/β-catenin signaling pathway, by physically interacting with the region on WIF1 promoter.ConclusionOur findings reveal that CRBP-1 is a crucial player in the initiation and progression of HCC, which provide a novel independent prognostic biomarker and therapeutic target for the diagnosis and treatment of HCC.
| S-EPMC8590789 | biostudies-literature