Molecular Roles of Insulin-Like Growth Factor-1 (IGF-1): Pathway Architecture and Experimental Findings

by Rawamino | Dec 7, 2025 | Peptides

Introduction Insulin-like Growth Factor-1 (IGF-1) is a 70-amino-acid polypeptide within the insulin/IGF superfamily that coordinates growth and stress-response programs across diverse tissues. In laboratory systems, IGF-1 is generated downstream of growth hormone (GH)...

Mitochondrial–Nuclear Crosstalk of MOTS-c in Exercise-Driven Cardiac Adaptation: Preclinical Evidence

by Rawamino | Dec 6, 2025 | Peptides

Introduction Cardiac tissue adapts to repeated endurance loading through coordinated shifts in cellular energetics, calcium handling, and structural remodeling. These adjustments include enhanced oxidative capacity, altered hemodynamic set points, and changes in...

Peptide Signaling and Stem Cell Modulation: Mechanistic Insights from Preclinical Research

by Rawamino | Dec 6, 2025 | Peptides

Introduction Peptide-based signaling molecules represent an expanding frontier in regenerative biology, offering a modular framework for studying cell communication, tissue remodeling, and repair pathways in controlled research environments. These bioactive fragments,...

Anti-Inflammatory and Anti-Fibrotic Signaling of the Thymosin-β4 Fragment Ac-SDKP in Experimental Systems

by Rawamino | Dec 5, 2025 | Peptides

Introduction Short bioactive peptides have emerged as precise probes for dissecting fibrosis, inflammation, and tissue remodeling in controlled laboratory settings. Among these, the tetrapeptide N-acetyl-Ser-Asp-Lys-Pro (Ac-SDKP) is generated from the N-terminus of...

Mechanistic Actions of Melanotan II Across Melanocortin Receptor Networks in Experimental Systems

by Rawamino | Dec 5, 2025 | Peptides

Introduction The melanocortin system comprises a small family of peptide ligands derived from proopiomelanocortin (POMC)—including α-, β-, and γ-melanocyte-stimulating hormones (MSH) and adrenocorticotropic hormone (ACTH)—that engage five G-protein–coupled receptors...

Endothelial-Centric Mechanisms of Stable Gastric Pentadecapeptide (BPC-157) in Preclinical Viral-Inflammatory Models

by Rawamino | Dec 4, 2025 | Peptides

Introduction Disruption of vascular homeostasis is a recurring feature of severe viral syndromes in laboratory models, characterized by endothelial activation, microthrombotic cascades, and multisystem inflammatory signaling. Endothelial nitric oxide synthase (eNOS)...