Application of GLP-1R nuclear export in regulating vascular remodeling

By elucidating the molecular mechanism of GLP-1R nuclear output, and utilizing the AngII→AT1R→PI3K/PDK1/Akt→PKCθ→GLP-1R Ser416 phosphorylation signaling pathway, a new strategy for inhibiting vascular remodeling was provided, solving the problem of drug targets and diagnostic methods for vascular remodeling-related cardiovascular diseases, and realizing the regulation of vascular smooth muscle cell function.

CN122399031APending Publication Date: 2026-07-17TAIYUAN NORMAL UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TAIYUAN NORMAL UNIV
Filing Date
2026-04-21
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Current technologies have failed to clarify the molecular mechanism of GLP-1R nuclear output under pathological conditions of vascular remodeling, and lack effective drug targets and intervention strategies to inhibit the abnormal proliferation and migration of vascular smooth muscle cells, leading to the progression of cardiovascular disease.

Method used

This study elucidates that GLP-1R nuclear output is induced by AngII, and that the signaling pathway involves AngII→AT1R→PI3K/PDK1/Akt→PKCθ→GLP-1R Ser416 phosphorylation. By using substances such as PKCθ inhibitors and GLP-1R Ser416 phosphorylation blockers, GLP-1R nuclear output can be inhibited, thereby blocking the process of vascular remodeling.

Benefits of technology

It provides new drug targets and treatment strategies that can effectively inhibit vascular remodeling-related diseases, including hypertension, atherosclerosis, restenosis after angioplasty, heart failure, diabetic vascular disease, and pulmonary hypertension, and uses the GLP-1R nucleocytoplasmic localization ratio as a biomarker for diagnosis and efficacy monitoring.

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Abstract

本发明公开了GLP‑1R核输出在调控血管重构中的应用,涉及生物医药技术领域,所述GLP‑1R核输出能够正向促进血管平滑肌细胞异常增殖、迁移,并加速血管重构进程;所述GLP‑1R核输出由AngII诱导,且具有浓度依赖性和时间依赖性;GLP‑1R的Ser416位点磷酸化是驱动GLP‑1R核输出的关键位点;所述Ser416位点磷酸化由PKCθ催化完成;本发明阐明了AngII→AT1R→PI3K / PDK1 / Akt→PKCθ→GLP‑1R Ser416磷酸化→GLP‑1R核输出→VSMCs增殖 / 迁移→血管重构的信号通路;为开发特异性干扰该通路各环节的药物提供了明确的理论基础和筛选依据。
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