KPV

### KPV (Lysine-Proline-Valine) Research Peptide KPV is a specialized tripeptide derived from the C-terminal fragment of alpha-Melanocyte-Stimulating Hormone ($\alpha$-MSH). Despite its structural simplicity, KPV retains significant biological activity independent of the classical melanocortin receptor (MCR) signaling pathways typically associated with $\alpha$-MSH. In vitro research suggests that KPV exerts its effects primarily by modulating the NF-$\kappa$B (nuclear factor kappa-light-chain-enhancer of activated B cells) signaling pathway and dampening the production of pro-inflammatory cytokines. Unlike its parent molecule, KPV does not appear to bind significantly to MC1R or MC3/4R, making it a subject of intense investigation for its localized intracellular activity and its ability to traverse cellular membranes via PepT1 transporters. The mechanism of action for KPV in laboratory settings centers on its ability to enter cells and interact with specific signaling cascades. Research indicates that KPV can inhibit the translocation of p65 into the nucleus, thereby preventing the transcription of inflammatory genes such as TNF-$\alpha$, IL-6, and IL-1$\beta$. In preclinical models involving intestinal epithelial cells and dermal fibroblasts, KPV has demonstrated a capacity to stabilize cellular homeostatic processes and mitigate oxidative stress. These properties make it a high-interest candidate for studies focused on wound healing dynamics, epithelial barrier integrity, and the regulation of inflammatory responses at the molecular level. **Product Handling and Storage:** This product is supplied as a lyophilized (freeze-dried) powder for maximum stability. It is recommended to store the lyophilized peptide at -20°C, protected from light and moisture. For laboratory use, KPV should be reconstituted with sterile, bacteriostatic water or a buffered saline solution (e.g., PBS). Once reconstituted, the solution should be stored at 4°C for short-term use (up to 7 days) or aliquoted and stored at -80°C to prevent degradation through repeated freeze-thaw cycles. Proper aseptic technique and PPE are required when handling this research compound to ensure experimental accuracy and personal safety. *** **WARNING: This product is intended for IN-VITRO RESEARCH AND LABORATORY USE ONLY. It is not for human or veterinary use. It must not be consumed, injected, or used for clinical applications.**