Peptide Handbook
Specialized Peptides

PTD-DBM

Cell-Penetrating Wnt Activator

Updated April 14, 2026

What is PTD-DBM?

A fusion peptide combining a protein transduction domain (PTD) with a Dishevelled-binding motif (DBM) that activates the Wnt/β-catenin signaling pathway intracellularly. The PTD enables cell membrane penetration without receptor binding, while the DBM fragment stabilizes β-catenin by disrupting the Axin-Dishevelled interaction. In preclinical models, topical PTD-DBM application activates hair follicle stem cells and induces anagen (growth phase) re-entry in telogen-phase follicles.

Research Profile

Structure Fusion peptide (~2,500 Da) — PTD + Dishevelled-binding motif
Targets Wnt/β-catenin pathway (intracellular activation via Axin-Dvl disruption)
Research Focus Hair follicle stem cell activation, Wnt signaling, anagen induction, alopecia models
Reconstitution Topical vehicle (DMSO or gel base)
Stability Limited data — prepare fresh for optimal activity
Key distinction: Bypasses surface receptors entirely — the PTD delivers Wnt pathway activation directly inside the cell, representing a receptor-independent approach to β-catenin stabilization.

Published Research

[1] Kwack MH et al. A cell-permeable Dishevelled-binding peptide promotes hair growth. J Dermatol Sci 2018;91:214-216 — PubMed 29778318
Research Use Only. All products sold by Lumen Peppers are intended solely for in vitro research and laboratory purposes. They are not drugs, supplements, or foods. Nothing on this page constitutes medical advice. Researchers are responsible for compliance with all applicable regulations. Last updated: April 14, 2026.

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