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Targeting the Notch Signaling Pathway in Chronic Inflammatory Diseases.

ABSTRACT: The Notch signaling pathway regulates developmental cell-fate decisions and has recently also been linked to inflammatory diseases. Although therapies targeting Notch signaling in inflammation in theory are attractive, their design and implementation have proven difficult, at least partly due to the broad involvement of Notch signaling in regenerative and homeostatic processes. In this review, we summarize the supporting role of Notch signaling in various inflammation-driven diseases, and highlight efforts to intervene with this pathway by targeting Notch ligands and/or receptors with distinct therapeutic strategies, including antibody designs. We discuss this in light of lessons learned from Notch targeting in cancer treatment. Finally, we elaborate on the impact of individual Notch members in inflammation, which may lay the foundation for development of therapeutic strategies in chronic inflammatory diseases.

SUBMITTER: Christopoulos PF

PROVIDER: S-EPMC8071949 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature

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Targeting the Notch Signaling Pathway in Chronic Inflammatory Diseases.

Christopoulos Panagiotis F PF Gjølberg Torleif T TT Krüger Stig S Haraldsen Guttorm G Andersen Jan Terje JT Sundlisæter Eirik E

Frontiers in immunology 20210412

The Notch signaling pathway regulates developmental cell-fate decisions and has recently also been linked to inflammatory diseases. Although therapies targeting Notch signaling in inflammation in theory are attractive, their design and implementation have proven difficult, at least partly due to the broad involvement of Notch signaling in regenerative and homeostatic processes. In this review, we summarize the supporting role of Notch signaling in various inflammation-driven diseases, and highli ...[more]

PMID: 33912195

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Project description:PurposePolycystic ovary syndrome (PCOS) is currently recognized as a condition that affects several systems in the body, including the reproductive, endocrine, and cardiovascular systems. Prevalent among teenagers and women of reproductive age. Prior research has demonstrated an elevation of miR-34a-5p within the follicular fluid (FF) of women of PCOS. Despite this, the precise mechanisms through which miR-34a-5p influences granulosa cells (GC) development and function remain poorly characterized.MethodsTherefore, this study investigates the involvement and pathogenic mechanisms of miR-34a-5p within GCs in the context of PCOS. The human granulosa-like tumor cell line (KGN) got transfected at a control, as well as a miR-34a-5p mimic and inhibitor, respectively. Monitor cellular proliferation in each experimental group. The experimental methods included RT-qPCR, CCK8, flow cytometry and western blotting. Also, the interaction between miR-34a-5p and the particular sequence of JAG1 has been verified using the dual luciferase assay. Further investigation of the connection involving miR-34a-5p and the Notch signaling pathway was conducted using bioinformatics analysis and experimental methods.ResultsThe results demonstrated that miR-34a-5p expression was significantly elevated in the serum(p<0. 0001)and FF (p = 0. 0402) of PCOS, whereas its expression in GCs (p = 0. 5522) showed no significant variation. Overexpressing miR-34a-5p caused a decrease in the rate at which KGN cells multiplied and an increase in programmed cell death. Conversely, inhibiting miR-34a-5p resulted in an increase in cell growth and a decrease in programmed cell death. Bioinformatics analysis and experimental results further demonstrated thatmiR-34a-5p interacts with the 3'UTR region of JAG1, leading to a negative regulation of the Jagged1-Notch signaling pathway.ConclusionIn summary, the miR-34a-5p molecule inhibits the growth of GCs as well as triggers programmed cell death by regulating the Jagged1-Notch signaling pathway. Silencing miR-34a-5p prevents dysfunction in GCs. Our analysis implies that miR-34a-5p is a new molecular site to treat PCOS.

Dataset Information

Targeting the Notch Signaling Pathway in Chronic Inflammatory Diseases.

Publications

Targeting the Notch Signaling Pathway in Chronic Inflammatory Diseases.

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