NAP-1
目录号 : GC45520A compound with anesthetic activity
Cas No.:131721-28-3
Sample solution is provided at 25 µL, 10mM.
Quality Control & SDS
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- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
NAP-1 is a compound with anesthetic activity.1 It increases paired-pulse inhibition in the CA1 region of rat hippocampal brain slices when used at a concentration of 100 μM. NAP-1 also induces loss of righting reflex in tadpoles (EC50 = 0.53 μM).
References
Cas No. | 131721-28-3 | SDF | |
Canonical SMILES | CC1=C(C(OCC)=O)C=C(C2=CC=C(Cl)C=C2)N1C3=CC=CC=C3 | ||
分子式 | C20H18ClNO2 | 分子量 | 339.8 |
溶解度 | DMF: 30mg/mL,DMF:PBS (pH 7.2) (1:2): 0.3mg/mL,DMSO: 10mg/mL | 储存条件 | Store at -20°C |
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1 mg | 5 mg | 10 mg | |
1 mM | 2.9429 mL | 14.7145 mL | 29.4291 mL |
5 mM | 0.5886 mL | 2.9429 mL | 5.8858 mL |
10 mM | 0.2943 mL | 1.4715 mL | 2.9429 mL |
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2.
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Neutrophil attractant/activation protein-1 (NAP-1 [interleukin-8])
Am J Respir Cell Mol Biol 1990 Jun;2(6):479-86.PMID:2189453DOI:10.1165/ajrcmb/2.6.479.
Neutrophil attractant/activation protein-1 (NAP-1 [interleukin-8]) is an 8,400 D protein that is a chemoattractant and granule release stimulus for neutrophils. NAP-1 was first purified from culture fluids of lipopolysaccharide-stimulated human blood mononuclear leukocytes. It was subsequently isolated from lipopolysaccharide-stimulated lung macrophages, mitogen-stimulated lymphocytes, and virus-infected fibroblasts. Interleukin-1 or tumor necrosis factor induces NAP-1 mRNA in many cells, including monocytes, fibroblasts, and endothelial cells. NAP-1 belongs in a family of host defense small proteins, which have a degree of sequence and structural similarity. Noteworthy are the four half-cystine residues in each protein, which are in register when the protein sequences are suitably aligned. Based on cloning data and N-terminal sequence analyses, NAP-1 is secreted as a 79 residue protein after cleavage of a 20 residue signal peptide. The commonly isolated 77 and 72 residue forms are probably extracellular cleavage products. NAP-1 has considerable charge heterogeneity. Charge and length variants all have chemotactic activity. In contrast to many chemoattractants, NAP-1 does not attract monocytes. Intradermal injection of NAP-1 causes neutrophil infiltration. The wide spectrum of cell sources and production stimuli suggests that NAP-1 mediates neutrophil recruitment in host defense and disease.
[Naf/NAP-1, a new peptide which activates neutrophil leukocytes]
Schweiz Med Wochenschr 1989 Sep 23;119(38):1285-9.PMID:2686005doi
NAF/NAP-1 is a novel tissue-derived chemotactic peptide. It consists of 72 amino acids and has no sequence homology to known cytokines. NAF/NAP-1 is produced by a wide variety of cells after stimulation with interleukin-1, tumor necrosis factor or endotoxin, and has the properties of a local mediator of neutrophil recruitment into diseased tissues. There are indications that NAF/NAP-1 is important in the pathophysiology of inflammatory conditions such as psoriasis, idiopathic pulmonary fibrosis, asbestosis, adult respiratory distress syndrome and different forms of arthritis.
Endothelial cell binding of NAP-1/IL-8: role in neutrophil emigration
Immunol Today 1992 Aug;13(8):291-4.PMID:1510812DOI:10.1016/0167-5699(92)90039-A.
In this article Antal Rot calls into question the generally accepted notion that gradients of soluble chemotactic factors are responsible for leukocyte emigration from the circulation into sites of inflammation. He presents an alternative model in which chemoattractants bound to the surface of endothelial cells promote neutrophil adhesion and emigration, while soluble blood-borne attractants inhibit adhesion and emigration.
Chemotactic activity and receptor binding of neutrophil attractant/activation protein-1 (NAP-1) and structurally related host defense cytokines: interaction of NAP-2 with the NAP-1 receptor
J Leukoc Biol 1991 Mar;49(3):258-65.PMID:1997632DOI:10.1002/jlb.49.3.258.
Neutrophil attractant/activation protein-1 (NAP-1) has sequence similarity to platelet factor-4 (PF-4) and to NAP-2 (a truncated from of connective tissue activating protein-III [CTAP-III(des 1-15)]. We compared chemotactic activity for neutrophils of these related proteins. We also included for comparison CTAP-III, CTAP-III(des 1-13), the C-terminal dodecapeptide of PF-4 [PF-4(59-70)], and C5a. Chemotactic potency (EC50) was highest for NAP-1 and C5a. Although chemotactic efficacy (peak percentage of neutrophils migrating) was comparable for C5a, NAP-1, and NAP-2, the NAP-2 response occurred only at concentrations 100-fold higher than the NAP-1 EC50 of 10(8) M. Data for the CTAP-III proteins confirmed that CTAP-III is not an attractant and that chemotactic activity appears as a result of cleavage of residues at the N-terminus to make CTAP-III(des 1-13) or NAP-2 [CTAP-III(des 1-15)]. Chemotactic activity of PF-4 was low and variable, with no significant response by neutrophils from six of nine subjects. In contrast, PF-4(59-70) regularly induced high chemotactic responses, although the EC50 of 1.6 x 10(5)M was 1,000-fold greater than that of NAP-1. The binding of fluoresceinated NAP-1 to neutrophils was inhibited by unlabeled NAP-1 or NAP-2 but not by PF-4 or PF-4 (59-70). This suggests that NAP-2 interacts with the neutrophil NAP-1 receptor. Despite the low chemotactic potency of NAP-2, it is a potential attractant at sites of injury because of the relatively large amounts of the parent CTAP-III released from platelets, as indicated by a serum concentration of approximately 10(-6) M.
Secretion of monocyte chemoattractant protein-1 (MCP-1) by human mononuclear phagocytes
Adv Exp Med Biol 1993;351:55-64.PMID:7942299DOI:10.1007/978-1-4615-2952-1_7.
Concentrations of MCP-1 and NAP-1 in culture fluids of human leukocytes were measured by sandwich ELISA. PPD caused PBMC's from tuberculin-sensitive subjects to secrete MCP-1 and NAP-1. PPD did not stimulate secretion by cells from a tuberculin-negative subject. Since the amounts secreted were more than could be produced by the few PPD-sensitized lymphocytes in the culture, we postulate that other cells were stimulated to secrete these chemoattractants. This study evaluated secretory capacity of one of the cell types in the PBMC culture. Unstimulated monocytes did not secrete MCP-1 or NAP-1. In order of increasing effect, IL-2 + IFN gamma, IL-1 alpha, and LPS caused monocyte secretion of MCP-1. The rank order for NAP-1 secretion was the same. TNF alpha did not cause secretion of MCP-1, but caused about the same amount of NAP-1 secretion as IL-2 + IFN gamma. Composition of the culture medium was especially critical for LPS-induced secretion of MCP-1, which was greatly enhanced by FCS and by Iscove's DMEM compared to RPMI 1640. IL-4 inhibited LPS-induced secretion of both MCP-1 and NAP-1. Secretory patterns were also a function of mononuclear phagocyte phenotype. LPS-induced secretion of MCP-1 was much greater for monocytes cultured several days in CSF-1 than for freshly isolated monocytes. LPS stimulation of bronchoalveolar macrophages caused NAP-1 secretion, but no secretion of MCP-1 above a relatively low baseline level.