EPO Regulates the Differentiation and Homing of Bone Marrow Mesenchymal Stem Cells Through Notch1/Jagged Pathway to Treat Pulmonary Hypertension

Overview

Journal Heliyon

Specialty Social Sciences

Date 2024 Feb 20

PMID 38375306

Authors

Kang Li

Chongyang Shen

Nianchi Wen

Yicen Han

Lu Guo

Affiliations

Soon will be listed here.

Abstract

Purpose: To investigate whether erythropoietin (EPO) can treat pulmonary arterial hypertension (PAH) in rats by regulating the differentiation and homing of bone marrow mesenchymal stem cells (BMSCs) through Notch1/Jagged signaling pathway.

Materials & Methods: BMSCs were isolated from the bone marrow of 6-week-old male SD rats by whole bone marrow method and identified. BMSCs were treated with 500 IU/mL EPO, and the proliferation, migration, invasion and differentiation ability, and the expression of MMP-2 and MMP-9 protein of BMSCs were detected . After the establishment of the pulmonary hypertension model in rats, BMSCs were intervened with different concentrations of EPO and injected into the rats through intravenous injection. The levels of TNF-α, IL-1β and IL-6 in lung tissue, the expression of SRY CXCR4, CCR2, Notch1 and Jagged protein in lung tissue, and the levels of TGF-α, vascular endothelial factor (VEGF), IGF-1 and HGF in serum were detected. Immunofluorescence (IF) staining was used to detect the co-localization of CD34.

Results: EPO promoted the proliferation, migration, and invasion of BMSCs by inhibiting Notch1/Jagged pathway , and induced BMSCs to differentiate into vascular smooth muscle cells and vascular endothelial cells. EPO inhibited Notch1/Jagged pathway in PAH rats, induced BMSCs homing and differentiation, increased the levels of TGF-α, VEGF, IGF-1 and HGF, and decreased the levels of TNF-α, IL-1β and IL-6.

Discussion & Conclusion: EPO can inhibit the Notch1/Jagged pathway and promote the proliferation, migration, invasion, homing and differentiation of BMSCs to treat pulmonary hypertension in rats and .

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