Every Peptide

Peptide field guide

QKCMP

A VEGF-mimetic peptide studied in biomaterials work aiming to accelerate endothelialization of small-diameter vascular grafts.

Evidence: emerging Safety: unknown Status: research Updated: March 20, 2026 CardiovascularTissue engineering

What it is

QKCMP is described in the literature as a VEGF-mimetic peptide, designed to reproduce some of vascular endothelial growth factor (VEGF)’s pro-endothelialization effects in a smaller peptide format.

In practical terms, QKCMP has been used as a functional component in biomaterials (for example, incorporated into or released from vascular graft prototypes) where the goal is to speed formation of an endothelial lining.

Why people care

Small-diameter vascular grafts are clinically challenging because they can fail from thrombosis and poor long-term patency. Rapid endothelialization is one of the key desired properties in this category.

A peptide that can be embedded into materials and still push endothelial behavior in the right direction is interesting because it may be easier to handle than full-length growth factors.

How it might work

Work to date points toward VEGF-related signaling:

  • reported association with VEGFA–VEGFR2 signaling
  • reported association with Hippo pathway signaling in an in vitro endothelialization model

These are mechanistic signals, not proof of clinical benefit.

Evidence landscape

As of March 2026, published evidence we’ve indexed is primarily biomaterials and in vitro work. This is an “engineering proof-of-concept” stage, not a therapeutic stage.

Key things that would upgrade confidence:

  • in vivo graft performance data (flow, thrombosis, patency)
  • durability of endothelial coverage over time
  • safety and immunogenicity assessments

Latest updates

  • 2026-03-20: A Biomedical Materials paper reports an SDVG prototype incorporating QKCMP with improved HUVEC proliferation/adhesion in vitro, plus RNA-seq signals implicating VEGF-related and Hippo pathways.

Safety reality

There is no mature human safety database for QKCMP as a standalone intervention. Risk depends heavily on context (for example, whether it is tethered to a graft material, released locally, or used systemically).

References

  • Wang H, et al. Rapid endothelialization induced by VEGF-mimetic peptide in small-diameter vascular scaffold. Biomed Mater. (2026).