---
title: "Neuropeptide Y4 receptor activation delays autoimmune diabetes by reprogramming β-cell stress and immune tolerance"
id: "biorxiv-4-neuropeptide-y4-receptor-activation-delays-autoimmune-diabetes-by-reprogramming"
canonical_url: "https://medichelpline.com/clinical-feed/biorxiv-4-neuropeptide-y4-receptor-activation-delays-autoimmune-diabetes-by-reprogramming"
content_type: "clinical_feed_article"
specialty: "Research Highlights"
source_name: "bioRxiv (Biomedical Preprints)"
source_url: "https://www.biorxiv.org/content/10.64898/2026.07.03.736290v1?rss=1"
published_at: "2026-07-10T12:00:00.000Z"
evidence_level: "Verified Feed"
license: "CC-BY-NC-4.0 / Informational Use"
---
# Neuropeptide Y4 receptor activation delays autoimmune diabetes by reprogramming β-cell stress and immune tolerance
## Provenance & Clinical Metadata
- **Canonical URL:** https://medichelpline.com/clinical-feed/biorxiv-4-neuropeptide-y4-receptor-activation-delays-autoimmune-diabetes-by-reprogramming
- **Specialty:** [Research Highlights](https://medichelpline.com/clinical-feed/research-highlights.md)
- **Primary Source:** bioRxiv (Biomedical Preprints)
- **Source URL:** [Original Journal Publication](https://www.biorxiv.org/content/10.64898/2026.07.03.736290v1?rss=1)
- **Published At:** 2026-07-10T12:00:00.000Z
- **Evidence Rating:** Verified Feed
## Executive GIST (TL;DR)
Type 1 diabetes (T1D) involves immune-mediated destruction of pancreatic {beta}-cells, yet current disease-modifying therapies mainly target immunity without enhancing {beta}-cell resilience. We show selective neuropeptide Y4 receptor (Y4R) agonism protects {beta}-cells while reshaping islet immunity across T1D models. Multi-modal localisation using cell sorting, qPCR, RNAscope and fluorescent ligand competition demonstrated predominant Y4R expression and functional accessibility on mouse and human {beta}-cells. Selective Y4R agonism was non-toxic and did not impair islet network integrity, Ca{superscript 2} dynamics, glucose-stimulated insulin secretion or systemic glucose tolerance. Y4R activation conferred cytoprotection against inflammatory cytokines, streptozotocin, lipotoxicity and ER stress, reducing caspase-3/7 activation and {beta}-cell loss whilst sustaining insulin release and promoting proliferation in both mouse and human islets. Bulk RNA-seq revealed a coordinated {beta}-cell resilience programme characterised by reinforced identity and insulin processing, KEAP1-NFE2L2-driven antioxidative and proteostatic activation, and suppression of EIF2 signalling and associated biosynthetic and ER stress pathways. Concurrently, Y4R agonism dampened pathogenic chemokine and cytokine networks, including CXCL10, CCL3/4/7 and IL-6, while preserving IL-2 and Foxp3 signals, thereby limiting CD8 T cell, CD4 T cell and macrophage chemotaxis toward cytokine-stressed islets.
## Clinical Analysis & Structured Key Points
bioRxiv (Biomedical Preprints) published a clinical update in Research Highlights on 10 Jul 2026. The item focuses on Neuropeptide Y4 receptor activation delays autoimmune diabetes by reprogramming β-cell stress and immune tolerance. Review the original article for the full source wording and details.
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