neutrophil

Rabbit Neutrophil Peptide 3b is an antimicrobial peptide isolated from rabbit peritoneal neutrophils [1].

Bovine neutrophil beta-defensin 12, an antimicrobial peptide originating from bovine neutrophils, exhibits antibacterial properties against Escherichia coli and Staphylococcus aureus [1].

PMX-53 is a potent and orally active CD88 (C5aR) antagonist (IC50: 20 nM) and inhibits C5a-induced neutrophil myeloperoxidase release and chemotaxis with IC50 values of 22 nM and 75 nM, respectively. PMX-53 is also an agonist of Mas-related gene 2 (MrgX2).

Ac9-25 acetate is an annexin AI peptide and activates the neutrophil reduced nicotinamide adenine dinucleotide phosphate oxidase through FPR but not through FPRL1.

[Lys3]-Bombesin is a biologically active peptide used in PET (Positron Emission Tomography) imaging to identify GRPR (gastrin-releasing peptide receptor) positive prostate cancer. The compound, when conjugated with a corresponding monoclonal antibody, can selectively trigger CD64-dependent monocyte and neutrophil-mediated lysis in small cell carcinoma.

Annexin/lipocortin 1-mimetic peptide; inhibits leukocyte extravasation. Reduces neutrophil adhesion and emigration, and promotes detachment of neutrophils from activated mesenteric endothelium in mice in vivo.

Antileukinate is a synthetic hexapeptide with an acetylated amino terminus and an amidated carboxyl terminus that inhibits the binding of CXC chemokines to the chemokine receptor CXCR2. It inhibits IL-8 binding to neutrophils (Ki = 2.7-13 μM), prevents neutrophil chemotaxis and β-glucuronidase release, and blocks IL-8-induced skin edema in rabbits. At 53 mg/kg, antileukinate has been shown to protect mice against acute pancreatitis and associated lung injury.

Ac2-12 TFA, an annexin/lipocortin 1 (LC1)-mimetic peptide, inhibits neutrophil extravasation and demonstrates antimigratory effects by attenuating the recruitment of neutrophils in experimental models of inflammation [1] [2].

H-Pro-Gly-Pro-OH, a collagen-derived matrikine, traditionally acts as a neutrophil chemoattractant, guiding these cells to target locations to orchestrate localized repair responses. Additionally, this compound initiates the transcription of neurotrophins and their receptor genes following cerebral ischemia [1] [2].

Platelet factor 4 (59-70) elicits human neutrophil & monocyte chemotaxis.

Retro-indolicidin, a synthetic analog of the cathelicidin-derived antimicrobial peptide-amide indolicidin, comprises a reversed 13-amino acid sequence isolated from bovine neutrophil cytoplasmic granules. This reverse peptide, known as Rev4, demonstrates potent antimicrobial and protease inhibitory properties in vitro.

PAR2 (1-6) is a synthetic peptide agonist of proteinase-activated receptor 2 (PAR2) that corresponds to residues 1-6 of the amino terminal tethered ligand sequence of mouse and rat PAR2. It also corresponds to residues 39-44 and 37-42 of the mouse and rat full-length sequences, respectively. PAR2 (1-6) induces relaxation in precontracted rat arteries in a concentration-dependent manner, an effect that can be reduced by the nitric oxide synthase inhibitor L-NNA . It inhibits keratinocyte growth in the presence and absence of growth factors. PAR2 (1-6) inhibits LPS-induced pulmonary neutrophil influx and increases in matrix metalloproteinase-2 (MMP-2) activity in mice.

Lonodelestat (POL6014) is a potent, orally active and selective peptide inhibitor of human neutrophil elastase (hNE).

Tutuilamide A, a potent inhibitor of porcine pancreatic elastase (PPE) with an IC50 of 1.2 nM, also effectively inhibits human neutrophil elastase (HNE; IC50=0.73 nM) and kallikrein 7 (KLK7; IC50=5.0 nM) [1].

N-terminal peptide of Annexin I (AI/Lipocortin I) that inhibits leukocyte extravasation. Acts as a formyl peptide receptor 1 (FPR1) ligand and stimulates neutrophil NADPH oxidase activation.

Defensin HNP-1 human is a Human neutrophil peptides (HNPs), involved in endothelial cell dysfunction at the time of early atherosclerotic development.Defensin HNP-1 human can regulate the growth of atherosclerosis.

Elafin, also referred to as elafin-specific inhibitor (ESI) or skin anti-leucoprotease (SKALP), is a protein that serves as a low molecular weight inhibitor of human neutrophil elastase (HNE) and proteinase 3, particularly in the lung. Additionally, Elafin exhibits antibacterial properties against Pseudomonas aeruginosa and Staphylococcus aureus [1] [2] [3].

MeOSuc-AAPA-CMK is a potent inhibitor of human neutrophil elastase (HNE) [1].

Tiprelestat, a potent inhibitor of human neutrophil elastase, exhibits antimicrobial and anti-inflammatory properties. It is utilized in the study of inflammation and immune diseases [1].

Ac9-25 TFA, an N-terminal peptide of Annexin I, functions as a formyl peptide receptor (FPR) agonist, activating neutrophil NADPH oxidase via FPR [1] [2].

Indolicidin acetate, a powerful antimicrobial peptide isolated from bovine neutrophil cytoplasmic granules, demonstrates significant effectiveness [1].

Defensin HNP-1 Human TFA, a human neutrophil peptide (HNP), plays a role in the early development of atherosclerosis by contributing to endothelial cell dysfunction. Additionally, it has demonstrated broad-spectrum antimicrobial and anti-leishmanial effects [1] [2].

Lonodelestat TFA (POL6014 TFA) is a potent, selective peptide inhibitor of human neutrophil elastase (hNE), demonstrating oral activity. It holds promise for cystic fibrosis (CF) research [1] [2] [3].

Potent and selective human formyl peptide receptor FPR2 agonist (EC50 values are 1, 2 and > 10 000 nM at mFRP2, hFPR2 and hFPR1 respectively). Induces migration of human monocytes and neutrophils via a chemotactic mechanism and enhances production of proi

E70K, a CXCL8 C-terminal peptide, features a lysine (K) substitution for glutamic acid (E) at position 70 and has demonstrated the ability to attenuate neutrophil adhesion and migration in the context of inflammation [1].

Adrenomedullin (13-52) is a truncated form of adrenomedullin (1-52) . It induces nitric oxide-dependent relaxation of and inhibits release of angiotensin II and endothelin-1 from isolated rat aorta. In vivo, adrenomedullin (13-52) decreases mean arterial pressure (MAP) in spontaneously and renal hypertensive rats in a dose-dependent manner. Adrenomedullin (13-52) (10-3,000 ng per animal) reverses increases in lobar arterial pressure induced by U-46619 in a dose-dependent manner in cats but has no effect on basal lobar arterial pressure or systemic arterial pressure. It also potentiates inflammatory edema and neutrophil accumulation in rats.

H-Tyr-Phe-OH (L-Tyrosyl-L-phenylalanine) can be used as the biomarker to distinguish benign thyroid nodules (BTN) from thyroid cancer (TC). H-Tyr-Phe-OH is an orally active Angiotensin-converting enzyme inhibitor with the 48% inhibiton rate at 50 μM. H-Tyr-Phe-OH shows xanthine oxidase inhibitory activity(uric acid lowering) that acts as regulator of IL-8 production in neutrophil-like cells [1] [2] [3] [4].

Ala-Ala-Pro-Val-chloromethylketone serves as an irreversible inhibitor of human neutrophil elastase (NE), utilized in researching chronic inflammatory airway diseases.

PKI 14-22 amide, myristoylated TFA is a potent inhibitor of cAMP-dependent protein kinase A (PKA) that diminishes IgG-mediated phagocytic response and inhibits neutrophil adhesion [1].