PUBLICATION

Nonspecific Cytotoxic Cell Antimicrobial Protein (NCAMP-1): A Novel Alarmin Ligand Identified in Zebrafish

Authors
Monette, M.M., Evans, D.L., Krunkosky, T., Camus, A., Jaso-Friedmann, L.
ID
ZDB-PUB-150218-1
Date
2015
Source
PLoS One   10: e0116576 (Journal)
Registered Authors
Evans, Donald L., Jaso-Friedmann, Liliana
Keywords
none
MeSH Terms
  • Adenosine Triphosphate/pharmacology
  • Alarmins/chemistry
  • Alarmins/metabolism*
  • Animals
  • Antibodies/immunology
  • Antimicrobial Cationic Peptides/immunology
  • Antimicrobial Cationic Peptides/metabolism*
  • Antimicrobial Cationic Peptides/toxicity
  • Benzoxazoles/chemistry
  • Benzoxazoles/metabolism
  • Calcium/metabolism
  • Cells, Cultured
  • Epithelial Cells/cytology
  • Epithelial Cells/drug effects
  • Epithelial Cells/metabolism
  • Female
  • Immunohistochemistry
  • Intestines/metabolism
  • Intestines/pathology
  • Kidney/metabolism
  • Kidney/pathology
  • Ligands
  • Microscopy, Fluorescence
  • Quinolinium Compounds/chemistry
  • Quinolinium Compounds/metabolism
  • Receptors, Purinergic P2X7/chemistry
  • Receptors, Purinergic P2X7/metabolism
  • Zebrafish
PubMed
25689842 Full text @ PLoS One
Abstract
Cells from the coelomic cavity of adult zebrafish (zf) were used to study the alarmin-like activities of nonspecific cytotoxic cell antimicrobial protein-1 (NCAMP-1). Immunohistochemistry studies using polyclonal anti-NCAMP-1 identified constitutive NCAMP-1 in epithelial cells of the zf anterior kidney, in liver parenchyma and in the lamina propria of the intestine. NCAMP-1 was also located in the cytosol of mononuclear cells in these tissues. Cytosolic NCAMP-1 was detected in a diverse population of coelomic cells (CC) using confocal microscopy and polyclonal anti-NCAMP-1 staining. Large mononuclear and heterophil-like CC had intracellular NCAMP-1. These studies indicated that NCAMP-1 is constitutively found in epithelial cells and in ZFCC. To establish a relationship between NCAMP-1 and the alarmin functions of ATP, a stimulation-secretion model was initiated using zf coelomic cells (ZFCC). ZFCCs treated with the alarmin ATP secreted NCAMP-1 into culture supernatants. Treatment of ZFCC with either ATP or NCAMP-1 activated purinergic receptor induced pore formation detected by the ZFCC uptake of the dye YO-PRO-1. ATP induced YO-PRO-1 uptake was inhibited by antagonists oxidized-ATP, KN62, or CBB. These antagonists did not compete with NCAMP-1 induced YO-PRO-1 uptake. Binding of ZFCC by both ATP and NCAMP-1 produced an influx of Ca2+. Combined treatment of ZFCC with ATP and NCAMP-1 increased target cell cytotoxicity. Individually NCAMP-1 or ATP treatment did not produce target cell damage. Similar to ATP, NCAMP-1 activates cellular pore formation, calcium influx and cytotoxicity.
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Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
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Mapping