Buy KPV: The Anti-Inflammatory Tripeptide for Research

KPV is one of the smallest bioactive peptides currently being studied - just three amino acids long. Yet despite its minimal size, this tripeptide has built up a remarkable research history, particularly in the areas of intestinal inflammation, skin biology, and immunomodulation. What makes KPV especially interesting for researchers is that it combines anti-inflammatory potency with a comparatively simple molecular profile.

KPVregeneration

Anti-inflammatory tripeptide derived from alpha-MSH (positions 11-13). Inhibits NF-kB signaling, supports gut barrier integrity, and shows antimicrobial activity. A targeted approach to inflammation research without broad immunosuppression.

What Is KPV?

KPV consists of three amino acids: Lysine (K) - Proline (P) - Valine (V). It is the C-terminal sequence of alpha-melanocyte-stimulating hormone (α-MSH), a 13-amino acid neuropeptide that plays a central role in the regulation of inflammation, pigmentation, and immune response.

What is remarkable about KPV is that, despite being merely a fragment of α-MSH, it fully retains the parent molecule's anti-inflammatory properties - in some models it even performs more potently than the complete hormone. This was first documented by Brzoska et al. and Luger et al. and has been consistently confirmed in subsequent studies.

The molecular mass is only approximately 342 Da, making KPV one of the smallest biologically active peptides. This small size is simultaneously an advantage: KPV is comparatively stable and can be actively absorbed via the intestinal peptide transporter PepT1.

Why Is KPV Being Researched?

Key Studies

Dalmasso et al. (2008, Gastroenterology): This landmark study demonstrated that KPV is taken up into intestinal epithelial cells via the peptide transporter PepT1, where it exerts a significant anti-inflammatory effect. In colitis models (DSS-induced and TNBS-induced), orally administered KPV significantly reduced inflammation parameters. The authors showed that KPV inhibits the nuclear translocation of NF-κB - in both epithelial cells and immune cells.

Xiao et al. (2017, Molecular Therapy): This work developed hyaluronic acid-functionalized nanoparticles as an oral delivery system for KPV in ulcerative colitis. The study not only confirmed the anti-inflammatory effect of KPV but also showed that targeted delivery further enhances efficacy. The authors noted that KPV exhibits "an even stronger anti-inflammatory effect than α-MSH."

Brzoska et al. (2008, Annals of the New York Academy of Sciences): This review classified α-MSH-related peptides, including KPV, as a new class of anti-inflammatory and immunomodulatory substances. Notably, in addition to anti-inflammatory effects, α-MSH and KPV also demonstrated antimicrobial activity against pathogens such as Staphylococcus aureus and Candida albicans.

Getting et al. (various publications): The Getting research group documented the effects of melanocortin receptor ligands, including KPV, on various inflammation models and contributed significantly to understanding melanocortin-based immunomodulation.

Mechanisms of Action

KPV acts through multiple anti-inflammatory signaling pathways:

NF-κB Inhibition: The central mechanism of action. KPV inhibits the phosphorylation of IκBα and thus the nuclear translocation of NF-κB. This reduces the expression of pro-inflammatory cytokines such as TNF-α, IL-1β, and IL-6.
PepT1-Mediated Uptake: KPV is actively taken up into intestinal epithelial cells via the peptide transporter PepT1. This transporter is expressed on the apical membrane of enterocytes and enables direct intracellular action.
Melanocortin Receptor Interaction: Although KPV is only a fragment of α-MSH, it can interact with melanocortin receptors (particularly MC1R, MC3R, and MC5R) that are expressed on immune cells.
Antimicrobial Activity: KPV possesses direct antimicrobial activity against various pathogens, which can contribute to restoring intestinal homeostasis independently of inflammation inhibition.
Cytokine Modulation: KPV lowers the expression of pro-inflammatory cytokines while simultaneously promoting anti-inflammatory mediators, leading to a shift in the cytokine balance.

Quality Criteria When Purchasing

KPV is a tripeptide with low molecular mass - synthesis is comparatively straightforward, but purity must be right:

HPLC Purity ≥98%: Standard for research-grade quality.
Mass Spectrometry: Confirmation of correct molecular mass and sequence.
Independent Verification: Janoshik Analytical tests every KPV batch at PeptidesDirect.
Endotoxin-Free: Especially important for inflammation research, as endotoxin contamination can distort results.

Dosages in the Research Literature

Colitis Models (oral): Dalmasso et al. used oral administration in their DSS- and TNBS-induced colitis models in mice.
Subcutaneous Research Protocols: Dosages of 100-500 µg subcutaneously are found in the literature.
In Vitro Studies: Concentrations of 10⁻⁸ to 10⁻⁶ M are commonly used in cell culture experiments.

These data come from published research literature and do not constitute a dosage recommendation.

Storage

KPV is supplied as lyophilized powder:

Before Reconstitution: Store at -20 °C. As a tripeptide, KPV is comparatively stable but benefits from low storage temperature.
After Reconstitution: Store at 2-8 °C in the refrigerator. Use within 2-4 weeks.
Reconstitution: Perform with bacteriostatic water or sterile water. Swirl gently, do not shake.
Aliquoting: For larger quantities, dividing into single doses is recommended to avoid freeze-thaw cycles.

Why Buy KPV from PeptidesDirect?

Janoshik-verified: Independent analytics with HPLC and mass spectrometry for every batch.
EU Shipping: No customs, no import fees. Delivery in 2-3 business days with tracking.
Research-Grade Quality: ≥98% purity.
Availability: KPV 10 mg for €49.99.

Frequently Asked Questions

What is KPV used for? Exclusively for in vitro and preclinical research. KPV is not an approved drug and is not intended for human consumption.

What makes KPV special compared to the full α-MSH? KPV retains the core anti-inflammatory activity of α-MSH but is significantly smaller (3 vs. 13 amino acids). This makes it more stable, easier to synthesize, and in some models even more potent than the complete hormone. Additionally, the melanogenic activity of α-MSH is absent - KPV does not cause pigmentation effects.

Is KPV orally bioavailable? In animal models, it has been shown that KPV can be absorbed via the PepT1 transporter in the gut. This is unusual for peptides and makes KPV one of the few peptides with demonstrated oral bioavailability in preclinical models.

Which research areas are particularly active? Intestinal inflammation (especially IBD models), skin conditions (psoriasis, dermatitis), wound healing, and antimicrobial research. More recent work is also investigating the role of KPV in neuroinflammation.

Are there human studies on KPV? For the isolated tripeptide KPV, no published human studies exist to date. All evidence is based on in vitro data and animal models. Studies on the complete α-MSH molecule exist in clinical settings.

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