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KPV

Anti-inflammatory tripeptide for gut and skin inflammation

KPV molecular structure

Overview

KPV is a naturally occurring C-terminal tripeptide fragment of alpha-melanocyte stimulating hormone (α-MSH) consisting of lysine-proline-valine. Despite lacking melanocortin receptor binding activity, KPV retains potent anti-inflammatory properties through alternative mechanisms including inhibition of NF-κB activation and modulation of inflammatory cytokine production. Research demonstrates KPV reduces inflammation without significant immunosuppression, making it attractive for chronic inflammatory conditions. Studies show efficacy in models of inflammatory bowel disease, colitis, and skin inflammation. The tripeptide may benefit wound healing through its anti-inflammatory effects and has shown protective properties in various tissue injury models. KPV crosses cellular membranes more readily than full-length α-MSH due to its small size. Research indicates potential applications for IBD, dermatological conditions, and systemic inflammatory states. The peptide is generally well-tolerated and can be administered through multiple routes including oral and topical. KPV represents a targeted approach to inflammation modulation without the side effects of broader immunosuppression.

Last reviewed: 2026-08-18

Identity & Aliases

Also known as

KPVLys-Pro-Valalpha-MSH (11-13)C-terminal tripeptide of alpha-MSH

Status: Research compound - Anti-inflammatory peptide

CAS88768-11-0
PubChem9919654

Full composition (formula, molecular weight, sequence) in Quick Facts →

Research Areas

Intestinal inflammation / IBDMucosal healing and PepT1 transportAnti-inflammatory peptide research

Available Evidence

Animal

In mouse models, PepT1-mediated uptake of KPV reduced intestinal inflammation (Gastroenterology 2008, PMID 18061177) and showed therapeutic benefit in colitis-associated cancer models (PMID 27458604), supporting anti-inflammatory activity in gut inflammation.

In Vitro

Cell-based assays show KPV is transported by the intestinal di/tripeptide transporter PepT1 and modulates inflammatory signaling/cytokine responses (e.g., reduced pro-inflammatory mediators) without binding melanocortin receptors.

Uncertain

No human clinical trials of KPV have been identified; systemic/clinical relevance, dosing, and delivery are unproven, and much of the surrounding literature is promotional rather than peer-reviewed.

Key Studies & Findings

2 studies
Preclinical2016

In a murine model, PepT1 promoted colitis-associated cancer and KPV administration reduced tumorigenesis, suggesting therapeutic potential in IBD-associated carcinogenesis.

Benefits & Effects

20 documented

Anti-inflammatory

Antimicrobial

Wound healing

Treats IBD/IBS.

Wound Healing: Corneal, diabetic wounds

clinical

IBD/Colitis: PepT1-mediated NF-κB inhibition; earlier recovery

clinical

Anti-inflammatory

Antimicrobial

Wound healing

Treats IBD/IBS.

Anti-inflammatory effects in IBD, airway, and ocular inflammation

preclinicalanti-inflammatory

Corneal wound healing (100% re-epithelialization at 60h)

preclinicalwound healing

Antimicrobial against S. aureus, E. coli, Candida

preclinicalantimicrobial

NF-κB inhibition via PepT1-mediated transport

preclinicalmechanism

Inflammation reduction

anecdotal

Immune support

anecdotal

Gut health

anecdotal

Skin health

anecdotal

Anti-inflammatory effects

anecdotal

Tissue protection

anecdotal

Side Effects & Safety

3 reported

No significant adverse effects reported; lacks pigmentary effects of full α-MSH

nonenone

Generally well-tolerated

MildRare Reversible

Minimal systemic effects

MildRare Reversible

Limitations & Open Questions

All evidence is preclinical (mouse and cell models); no human trials, no clinical pharmacokinetics, and no approved formulation. Claims about skin/wound applications rely on alpha-MSH extrapolations rather than direct KPV human data.

Pharmacology

Natural tripeptide (Lys-Pro-Val), the C-terminal fragment of alpha-MSH; taken up across intestinal epithelium via the PepT1 di/tripeptide transporter; reported to suppress inflammatory cytokine signaling. Research-stage only.

Reported Research Dosing

Reported values from research literature and community protocols. Educational reference only — not a dosing recommendation or medical advice.

200-500mcg daily

Route: SC/Oral
Half-life: Short

Research Protocols

General Anti-Inflammatory

Dose
200-300mcg
Frequency
Once daily
Route
Subcutaneous

Active Inflammation

Dose
250mcg
Frequency
Twice daily
Route
Subcutaneous

Autoimmune Support

Dose
500mcg
Frequency
Once daily
Route
Subcutaneous

Acute Flare-ups

Dose
500mcg
Frequency
Twice daily for 1 week then reduce
Route
Subcutaneous

Research protocols are for educational purposes only. Always consult qualified medical professionals.

Frequently Asked Questions

Has KPV been studied in people with IBD?

No published human trials were identified; current evidence comes from mouse colitis models and in-vitro cell studies.

How does KPV work if it doesn't bind melanocortin receptors?

Unlike full-length alpha-MSH, KPV's anti-inflammatory effects appear mediated through PepT1-dependent uptake and downstream modulation of inflammatory signaling rather than melanocortin receptor activation.

Research Citations

3
A KPV-binding double-network hydrogel restores gut mucosal barrier in an inflamed colon.

Zhao Y, Xue P, Lin G, Tong M, Yang J, Zhang Y, Ran K, Zhuge D, Yao Q, Xu H (2022)

4
KPV and RAPA Self-Assembled into Carrier-Free Nanodrugs for Vascular Calcification Therapy.

Zhang L, Li D, Aierken Y, Zhang J, Liu Z, Lin Z, Jiang L, Li Q, Wu Y, Liu Y (2024)

5
International Recommendations for the Diagnosis and Management of Patients With Adrenoleukodystrophy: A Consensus-Based Approach.

Engelen M, van Ballegoij WJC, Mallack EJ, Van Haren KP, Köhler W, Salsano E, van Trotsenburg ASP, Mochel F, Sevin C, Regelmann MO, Tritos NA, Halper A, Lachmann RH, Davison J, Raymond GV, Lund TC, Orchard PJ, Kuehl JS, Lindemans CA, Caruso P, Turk BR, Moser AB, Vaz FM, Ferdinandusse S, Kemp S, Fatemi A, Eichler FS, Huffnagel IC (2022)

+ 22 more citations

Related Resources

Quick Facts

Formula

C16H27N5O4

Molecular Weight

362.43

Sequence

KPV

Mechanism

Anti-inflammatory peptide derived from alpha-MSH

Safety Information

Research compound only. Limited human safety data available.

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