{"id":10309,"date":"2026-06-14T19:08:27","date_gmt":"2026-06-14T17:08:27","guid":{"rendered":"https:\/\/nexxusbio.com\/?p=10309"},"modified":"2026-08-10T16:23:25","modified_gmt":"2026-08-10T14:23:25","slug":"kpv-peptid-l-lyzin-l-prolin-a-l-valin","status":"publish","type":"post","link":"https:\/\/nexxusbio.com\/en\/kpv-peptid-l-lyzin-l-prolin-a-l-valin\/","title":{"rendered":"KPV peptide: \u03b1-MSH(11\u201313), PepT1 and NF-\u03baB in research"},"content":{"rendered":"<p><strong>KPV peptide<\/strong> It is a short tripeptide consisting of the amino acids L-lysine, L-proline and L-valine. It corresponds to the C-terminal sequence of the alpha-melanocyte-stimulating hormone (\u03b1-MSH) and is used in scientific research to study cellular signaling, NF-\u03baB and MAPK pathways, the peptide transporter PepT1 and experimental models of the immune response.<\/p>\n<p>When interpreting available literature, it is important to distinguish between <strong>Full-length \u03b1-MSH, the KPV tripeptide itself, modified KPV analogs, and specific research-grade material<\/strong>. The results of one molecular form or experimental model cannot be automatically transferred to another form or a specific commercial batch.<\/p>\n<div style=\"background: #eef7fc; border-left: 4px solid #55a7d9; padding: 18px 20px; margin: 25px 0; border-radius: 6px;\"><strong>In short:<\/strong> KPV represents the Lys-Pro-Val sequence, i.e., the C-terminal fragment of \u03b1-MSH(11\u201313). Experimental work investigated its relationship to NF-\u03baB, MAPK, the production of selected cytokines, the PepT1 transporter, and cellular responses to experimental stimuli. Most available functional data come from cell and animal models and do not represent a confirmed clinical effect in humans.<\/div>\n<div style=\"background: #f7f9fb; border: 1px solid #e1e7ec; padding: 20px 24px; margin: 25px 0; border-radius: 6px;\"><strong>Contents of the article<\/strong><\/p>\n<ul style=\"margin: 12px 0 0 20px;\">\n<li><a href=\"#co-je-kpv\">What is KPV?<\/a><\/li>\n<li><a href=\"#kpv-alpha-msh\">KPV and \u03b1-MSH(11\u201313)<\/a><\/li>\n<li><a href=\"#nf-kb-kpv\">NF-\u03baB signaling in cell models<\/a><\/li>\n<li><a href=\"#pept1-kpv\">PepT1 and the KPV transport<\/a><\/li>\n<li><a href=\"#mapk-kpv\">MAPK and other signaling mechanisms<\/a><\/li>\n<li><a href=\"#keratinocyty-kpv\">Research on human keratinocytes<\/a><\/li>\n<li><a href=\"#vyskum-2025-kpv\">More recent cell data from 2025<\/a><\/li>\n<li><a href=\"#mcr-kpv\">KPV and melanocortin receptors<\/a><\/li>\n<li><a href=\"#antimikrobialny-vyskum-kpv\">Experimental microbiological research<\/a><\/li>\n<li><a href=\"#uroven-dokazov-kpv\">Level of scientific evidence<\/a><\/li>\n<li><a href=\"#analytika-kpv\">Research-grade KPV and analytical documentation<\/a><\/li>\n<li><a href=\"#limity-kpv\">What does the available research not show?<\/a><\/li>\n<li><a href=\"#faq-kpv\">FAQ<\/a><\/li>\n<li><a href=\"#zdroje-kpv\">Primary scientific sources<\/a><\/li>\n<\/ul>\n<\/div>\n<h2 id=\"co-je-kpv\">What is KPV peptide?<\/h2>\n<p><strong>KPV<\/strong> is an abbreviation formed from the single-letter codes of three amino acids:<\/p>\n<div style=\"background: #eef7fc; border: 1px solid #c9e3f2; padding: 15px 20px; margin: 20px 0; border-radius: 6px; text-align: center; font-size: 17px;\"><strong>K \u2013 P \u2013 V<br \/>Light \u2013 Pro \u2013 Val<\/strong><\/div>\n<p>It is a linear tripeptide derived from the C-terminal region of \u03b1-MSH. Therefore, it is often referred to in the literature as <strong>\u03b1-MSH(11\u201313)<\/strong>.<\/p>\n<p>The short sequence allows the use of KPV as an experimental model to investigate which biological properties of longer \u03b1-MSH are associated with its C-terminal part.<\/p>\n<div style=\"overflow-x: auto; margin: 25px 0;\">\n<table style=\"width: 100%; border-collapse: collapse; background: #eef7fc; border: 1px solid #c9e3f2;\">\n<thead>\n<tr style=\"background: #dceff9;\">\n<th style=\"padding: 12px; border: 1px solid #c9e3f2; text-align: left;\">Parameter<\/th>\n<th style=\"padding: 12px; border: 1px solid #c9e3f2; text-align: left;\">Research characteristics<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\"><strong>Name<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\">KPV<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\"><strong>Sequence<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\">Lys-Pro-Val<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\"><strong>Length<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\">3 amino acids<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\"><strong>Origin of the sequence<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\">C-terminal fragment of \u03b1-MSH, amino acids 11\u201313<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\"><strong>Mechanisms studied<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\">NF-\u03baB, MAPK, PepT1 and cellular cytokine signaling<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\"><strong>Level of evidence<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\">First of all, in vitro and animal experimental models<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\"><strong>Storage<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\">According to the label and CoA of the specific research-grade batch<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\"><strong>Determination<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\">Research Use Only (RUO) \u2013 laboratory and analytical research<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2 id=\"kpv-alpha-msh\">KPV and \u03b1-MSH(11\u201313)<\/h2>\n<p>\u03b1-MSH is a 13-amino acid peptide derived from proopiomelanocortin. KPV represents its last three amino acids \u2013 positions 11 to 13.<\/p>\n<p>The significance of this sequence was first explored in older experimental studies. In mouse models, \u03b1-MSH(11\u201313) was evaluated for its experimentally induced local response, and the results indicated that part of the biological activity of \u03b1-MSH can be maintained even in the short C-terminal fragment.<\/p>\n<p>Primary source:<\/p>\n<p><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/2550304\/\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Antiinflammatory activity of a COOH-terminal fragment of the neuropeptide alpha-MSH<\/strong><\/a>.<\/p>\n<p>What is important is that it was about <strong>an animal experimental model<\/strong>. The results of such a model do not represent clinical evidence in humans.<\/p>\n<h2 id=\"nf-kb-kpv\">NF-\u03baB signaling in cell models<\/h2>\n<p><strong>NF-\u03baB<\/strong> is a transcriptional regulatory system involved in the cellular response to various cytokines, stress signals, and other experimental stimuli.<\/p>\n<p>In a study published in Human Keratinocytes, scientists examined \u03b1-MSH, KPV, and other related peptides after stimulation of cells with TNF-\u03b1.<\/p>\n<p>In the used cell model, a reduction in NF-\u03baB\/p65 activation was observed with KPV.<\/p>\n<p>Primary source:<\/p>\n<p><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/12485424\/\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Inhibition of TNF-\u03b1-stimulated NF\u03baB\/p65 in human keratinocytes by \u03b1-MSH and related peptides<\/strong><\/a>.<\/p>\n<div style=\"background: #fff8dc; border: 1px solid #eadb99; border-left: 5px solid #d6b94c; padding: 18px 20px; margin: 25px 0; border-radius: 6px;\"><strong>Interpretative note:<\/strong><\/p>\n<p>The change in NF-\u03baB signaling in cell culture is a mechanistic experimental data. In itself, it does not demonstrate the treatment of inflammatory disease, clinical efficacy, or the safety of KPV in humans.<\/p><\/div>\n<h2 id=\"pept1-kpv\">PepT1 and the KPV transport<\/h2>\n<p>One of the most interesting mechanisms studied in KPV is its interaction with a peptide transporter. <strong>PepT1<\/strong>.<\/p>\n<p>PepT1 is a membrane transport protein capable of transporting small di- and tripeptides. In a study published in 2008, researchers investigated the transport of KPV in human intestinal epithelial cell lines and in T cells.<\/p>\n<p>Experimental data supported the transport of KPV through PepT1. NF-\u03baB, MAPK, and the expression of selected cytokines were also monitored in the same models.<\/p>\n<p>The research was subsequently supplemented by two mouse experimental models of colitis.<\/p>\n<p>Primary source:<\/p>\n<p><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/18061177\/\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Dalmasso et al. \u2013 PepT1-mediated tripeptide KPV uptake reduces intestinal inflammation<\/strong><\/a>.<\/p>\n<p>The title of the original publication uses the term \u201ereduces intestinal inflammation\u201c because it describes the results of cellular and mouse experiments. However, this title cannot be used as a general health claim for research-grade material.<\/p>\n<h2 id=\"mapk-kpv\">MAPK and other signaling mechanisms<\/h2>\n<p>Along with NF-\u03baB, KPV was also studied in <strong>MAPK signaling<\/strong>.<\/p>\n<p>MAPK represents a group of intracellular kinases through which cells respond to extracellular stimuli. In experimental models of PKD, changes in signaling pathways associated with the cytokine response have been evaluated, for example.<\/p>\n<p>Further work also investigated the production of nitric oxide in activated macrophage cells.<\/p>\n<p>In an experimental study with RAW 264.7 macrophages, KPV and its analogues altered the production of NO after stimulation of LPS\/IFN-\u03b3 cells.<\/p>\n<p>Primary source:<\/p>\n<p><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/12895656\/\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Effects of \u03b1-melanotropin C-terminal tripeptide analogues on macrophage NO production<\/strong><\/a>.<\/p>\n<h2 id=\"keratinocyty-kpv\">Research on human keratinocytes<\/h2>\n<p>Keratinocytes constitute one of the human cell systems that the KPV was experimentally studied on.<\/p>\n<p>Older studies evaluated, for example, the response of cells after TNF-\u03b1 stimulation and subsequent activation of NF-\u03baB. The results supported the hypothesis that short C-terminal fragments of \u03b1-MSH can influence intracellular signaling mechanisms even in cells that are not melanocytes.<\/p>\n<p>These data are important for cellular and molecular biology, but <strong>The experiment on keratinocytes cannot be confused with the clinical result on human skin<\/strong>.<\/p>\n<h2 id=\"vyskum-2025-kpv\">More recent cell data from 2025<\/h2>\n<p>In 2025, another study using the human keratinocyte cell line HaCaT was published.<\/p>\n<p>Researchers created an experimental model of exposure of cells to fine dust particles PM10 and subsequently investigated changes in oxidative parameters, cytokine signaling, cell viability, and MAPK\/NF-\u03baB mechanisms after exposure to KPV.<\/p>\n<p>In this particular case <strong>In vitro models<\/strong> changes in several monitored cellular parameters were recorded, including IL-1\u03b2 and MAPK\/NF-\u03baB signaling.<\/p>\n<p>Primary source:<\/p>\n<p><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/40073467\/\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>The Lysine-Proline-Valine peptide mitigates fine dust-induced keratinocyte apoptosis and inflammation by regulating oxidative stress and modulating the MAPK\/NF-\u03baB pathway<\/strong><\/a>.<\/p>\n<p>This is a cellular experiment, and the results cannot be interpreted as a confirmed dermatological or health effect in humans.<\/p>\n<h2 id=\"mcr-kpv\">KPV and melanocortin receptors<\/h2>\n<p>Since KPV is derived from \u03b1-MSH, it can be assumed that all its experimental effects must occur through classical melanocortin receptors.<\/p>\n<p>However, experimental data show a more complex picture.<\/p>\n<p>A study examining KPV and its analogs in macrophage and other cell models did not detect classical binding to the studied melanocortin receptors or a typical cAMP response to \u03b1-MSH(11\u201313) itself.<\/p>\n<p>Primary source:<\/p>\n<p><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/12895656\/\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Effects of alpha-melanotropin C-terminal tripeptide analogues on macrophage NO production<\/strong><\/a>.<\/p>\n<p>Therefore, it is not appropriate to describe the mechanism of KPV simply by stating that it \u201eactivates the melanocortin receptor\u201c. The available data support the study of receptor-independent mechanisms as well.<\/p>\n<h2 id=\"antimikrobialny-vyskum-kpv\">Experimental microbiological research<\/h2>\n<p>CVP and modified C-terminal melanocortin peptides have also been studied in laboratory microbial models.<\/p>\n<p>In one <strong>in vitro<\/strong> The researchers evaluated \u03b1-MSH, KPV and D-Val analogs against selected gram-positive and gram-negative bacteria.<\/p>\n<p>Antibacterial activity against the tested microorganisms was observed in the laboratory model used.<\/p>\n<p>Primary source:<\/p>\n<p><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/18355945\/\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Antimicrobial action of melanocortin peptides and identification of a novel X-Pro-D\/L-Val sequence<\/strong><\/a>.<\/p>\n<p>However, the result of laboratory cultivation of microorganisms is not evidence of clinical antimicrobial efficacy nor a reason to use KPV as a health product.<\/p>\n<h2 id=\"uroven-dokazov-kpv\">The level of scientific evidence regarding CPV<\/h2>\n<div style=\"overflow-x: auto; margin: 25px 0;\">\n<table style=\"width: 100%; border-collapse: collapse; background: #eef7fc; border: 1px solid #c9e3f2;\">\n<thead>\n<tr style=\"background: #dceff9;\">\n<th style=\"padding: 12px; border: 1px solid #c9e3f2; text-align: left;\">Type of evidence<\/th>\n<th style=\"padding: 12px; border: 1px solid #c9e3f2; text-align: left;\">Example<\/th>\n<th style=\"padding: 12px; border: 1px solid #c9e3f2; text-align: left;\">Correct interpretation<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\"><strong>Bunk models<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\">NF-\u03baB, MAPK, cytokines, NO<\/td>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\">Mechanistic data from specific cellular systems.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\"><strong>Transport models<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\">PepT1 in intestinal cells<\/td>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\">Information on the transport of the peptide in the experimental system used.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\"><strong>Animal models<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\">Experimental local response and models of colitis<\/td>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\">Preclinical results, not an automatic result in humans.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\"><strong>Microbial models<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\">Laboratory cultures of bacteria<\/td>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\">In vitro biological activity, not clinical antimicrobial efficacy.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\"><strong>Research-grade COA<\/strong><\/td>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\">Identity, chromatographic purity and batch quantity<\/td>\n<td style=\"padding: 12px; border: 1px solid #c9e3f2;\">Analytical characterization, not clinical safety or efficacy.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2 id=\"analytika-kpv\">Research-grade KPV and analytical documentation<\/h2>\n<p>The results of the published study describe a specific molecule and a specific experimental system. They do not automatically provide information about the quality of another commercially available research-grade batch.<\/p>\n<p>Therefore, the following are particularly relevant for laboratory PKV:<\/p>\n<ul>\n<li>the exact identity of the Lys-Pro-Val tripeptide,<\/li>\n<li>molecular form of the material,<\/li>\n<li>chromatographic purity,<\/li>\n<li>molecular identification,<\/li>\n<li>quantitative determination of quantity,<\/li>\n<li>batch number or lot number,<\/li>\n<li>the analytical method used,<\/li>\n<li>audibility of the COA to a specific sample,<\/li>\n<li>the storage conditions stated on the label and in the CoA of the specific batch.<\/li>\n<\/ul>\n<div style=\"background: #eef7fc; border-left: 4px solid #55a7d9; padding: 18px 20px; margin: 25px 0; border-radius: 6px;\"><strong>Analytical note:<\/strong> HPLC area purity, molecular identity, and the amount of KPV in the vial are different analytical parameters. High chromatographic purity in itself does not confirm the correct amount, stability, or biological or clinical safety of the material.<\/div>\n<p>More about the evaluation of purity, COA and traceability of research-grade materials can be found in the article <a href=\"https:\/\/nexxusbio.com\/en\/7-kriterii-vyberu-peptidoveho-dodavatela\/\"><strong>7 criteria for selecting a peptide supplier<\/strong><\/a>.<\/p>\n<p>The documentation available for the analyzed batches can be verified in the section <a href=\"https:\/\/nexxusbio.com\/en\/coa\/\"><strong>COA and analytical documentation<\/strong><\/a>.<\/p>\n<h2 id=\"limity-kpv\">What does the available research not show?<\/h2>\n<p>In the case of KPV, it is important to distinguish between mechanistic and preclinical results and health or therapeutic claims.<\/p>\n<p>The available data by themselves do not show:<\/p>\n<ul>\n<li>clinical efficacy of CPV in inflammatory diseases in humans,<\/li>\n<li>the suitability of research-grade PPE for personal or humanitarian use,<\/li>\n<li>that the results of mouse models apply automatically to humans,<\/li>\n<li>that the experiment on intestinal cells provides evidence of an effect on the human gastrointestinal system,<\/li>\n<li>that the results on keratinocytes represent a confirmed effect on human skin,<\/li>\n<li>that in vitro activity against microorganisms constitutes a clinical antimicrobial effect,<\/li>\n<li>that the results of modified analogs of KPV automatically apply to the unmodified Lys-Pro-Val,<\/li>\n<li>that the analytical purity of a particular batch represents evidence of clinical safety or efficacy.<\/li>\n<\/ul>\n<p>Therefore, it is not appropriate to present KPV with consumer-friendly formulations such as \u201eintestinal peptide\u201c, \u201etreats inflammation\u201c, \u201erestores the skin\u201c, \u201eheals the intestines\u201c, or \u201eantimicrobial therapy\u201c. Such formulations go beyond the level of available experimental evidence.<\/p>\n<h2>How to critically read studies on CPV?<\/h2>\n<p>It is advisable to verify at each publication:<\/p>\n<ul>\n<li>whether an unmodified KPV or its analogue was used,<\/li>\n<li>whether it was a cellular, microbial or animal model,<\/li>\n<li>which signaling pathway or experimental endpoint was monitored,<\/li>\n<li>whether PepT1 transport was studied or the cellular response itself,<\/li>\n<li>whether it is a primary experimental study or an overview article,<\/li>\n<li>whether the results were confirmed in other independent models.<\/li>\n<\/ul>\n<p>Such an approach helps to separate the experimental mechanism from a claim that would go beyond the published data.<\/p>\n<h2 id=\"faq-kpv\">FAQ \u2013 KPV peptide and research<\/h2>\n<h3>What is KPV peptide?<\/h3>\n<p>KPV is a tripeptide with the sequence Lys-Pro-Val. It represents the C-terminal fragment of \u03b1-MSH corresponding to amino acids 11\u201313.<\/p>\n<h3>What does \u03b1-MSH(11\u201313) mean?<\/h3>\n<p>These are positions 11 to 13 in the 13-amino acid sequence of \u03b1-MSH. These three C-terminal amino acids form the KPV.<\/p>\n<h3>What mechanisms are being investigated in the KPV?<\/h3>\n<p>Published experimental studies examined, for example, NF-\u03baB, MAPK, the production of selected cytokines, nitric oxide, and transport through PepT1.<\/p>\n<h3>What is PepT1?<\/h3>\n<p>PepT1 is a membrane peptide transporter capable of transporting small di- and tripeptides. Transport of KPV has also been studied in experimental intestinal cell models.<\/p>\n<h3>Does KPV bind to classical melanocortin receptors?<\/h3>\n<p>Some experimental studies did not detect a classical binding to the studied melanocortin receptors or a typical cAMP response with KPV. Therefore, the mechanism of KPV cannot be simplified to just classical melanocortin receptor signaling.<\/p>\n<h3>Are there clinical evidence of CPV in humans?<\/h3>\n<p>Most of the available functional data comes from cellular, microbial, and animal experimental models. Such results cannot be automatically interpreted as clinical efficacy in humans.<\/p>\n<h3>Is an HPLC purity data sufficient for research-grade KPV?<\/h3>\n<p>No. Chromatographic purity is only one parameter. Identity, quantity, molecular form, batch and other analytical data must be evaluated separately.<\/p>\n<h3>How is research-grade KPV stored?<\/h3>\n<p>Storage conditions should be governed by the data on the label and in the CoA of a specific batch. For laboratory material, the batch-specific technical data of the manufacturer or analytical documentation always take precedence.<\/p>\n<p>You can find more professional articles in the section <a href=\"https:\/\/nexxusbio.com\/en\/category\/peptide-analysis\/\"><strong>Research on peptides<\/strong><\/a>.<\/p>\n<h2 id=\"zdroje-kpv\">Primary scientific sources<\/h2>\n<ol>\n<li><em>Antiinflammatory activity of a COOH-terminal fragment of the neuropeptide alpha-MSH.<\/em> <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/2550304\/\" target=\"_blank\" rel=\"noopener noreferrer\">PubMed<\/a><\/li>\n<li><em>Inhibition of tumor necrosis factor-alpha stimulates NFkappaB\/p65 in human keratinocytes by alpha-melanocyte stimulating hormone and related peptides.<\/em> <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/12485424\/\" target=\"_blank\" rel=\"noopener noreferrer\">PubMed<\/a><\/li>\n<li>Dalmasso G, et al. <em>PepT1-mediated tripeptide KPV uptake reduces intestinal inflammation.<\/em> Gastroenterology. 2008. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/18061177\/\" target=\"_blank\" rel=\"noopener noreferrer\">PubMed<\/a><\/li>\n<li><em>Effects of alpha-melanotropin C-terminal tripeptide analogues on macrophage NO production.<\/em> <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/12895656\/\" target=\"_blank\" rel=\"noopener noreferrer\">PubMed<\/a><\/li>\n<li>Sung J, et al. <em>The Lysine-Proline-Valine peptide mitigates fine dust-induced keratinocyte apoptosis and inflammation by regulating oxidative stress and modulating the MAPK\/NF-\u03baB pathway.<\/em> Tissue and Cell. 2025. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/40073467\/\" target=\"_blank\" rel=\"noopener noreferrer\">PubMed<\/a><\/li>\n<li><em>Antimicrobial action of melanocortin peptides and identification of a novel X-Pro-D\/L-Val sequence in Gram-positive and Gram-negative bacteria.<\/em> Peptides. 2008. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/18355945\/\" target=\"_blank\" rel=\"noopener noreferrer\">PubMed<\/a><\/li>\n<\/ol>\n<div style=\"background: #fff8dc; border: 1px solid #eadb99; border-left: 5px solid #d6b94c; padding: 18px 20px; margin: 30px 0; border-radius: 6px;\"><strong>Important notice:<\/strong><\/p>\n<p>This article is for informational, educational, and scientific purposes only. The information describes molecular, cellular, microbiological, and preclinical experimental data. It is not medical advice, diagnosis, prevention, or a guide to treatment.<\/p>\n<p>Results observed in cell cultures, microbial systems, or animal models cannot be automatically interpreted as a confirmed clinical, dermatological, gastrointestinal, antimicrobial, or other health effect in humans.<\/p>\n<p>Research-grade KPV and other materials presented on the NEXXUS BIO website are intended solely for laboratory, analytical, and scientific purposes (Research Use Only). They are not intended for human or veterinary use, consumption, personal application, diagnosis, prevention, or treatment.<\/p><\/div>","protected":false},"excerpt":{"rendered":"<p>KPV peptid je kr\u00e1tky tripeptid pozost\u00e1vaj\u00faci z aminokysel\u00edn L-lyz\u00edn, L-prol\u00edn a L-val\u00edn. Zodpoved\u00e1 C-termin\u00e1lnej sekvencii 11\u201313 alfa-melanocyty stimuluj\u00faceho horm\u00f3nu (\u03b1-MSH)<\/p>","protected":false},"author":2,"featured_media":10316,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[194],"tags":[],"class_list":["post-10309","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vyskum-peptidov"],"_links":{"self":[{"href":"https:\/\/nexxusbio.com\/en\/wp-json\/wp\/v2\/posts\/10309","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nexxusbio.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nexxusbio.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nexxusbio.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nexxusbio.com\/en\/wp-json\/wp\/v2\/comments?post=10309"}],"version-history":[{"count":7,"href":"https:\/\/nexxusbio.com\/en\/wp-json\/wp\/v2\/posts\/10309\/revisions"}],"predecessor-version":[{"id":10768,"href":"https:\/\/nexxusbio.com\/en\/wp-json\/wp\/v2\/posts\/10309\/revisions\/10768"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nexxusbio.com\/en\/wp-json\/wp\/v2\/media\/10316"}],"wp:attachment":[{"href":"https:\/\/nexxusbio.com\/en\/wp-json\/wp\/v2\/media?parent=10309"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nexxusbio.com\/en\/wp-json\/wp\/v2\/categories?post=10309"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nexxusbio.com\/en\/wp-json\/wp\/v2\/tags?post=10309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}