» Articles » PMID: 17662042

Interferon-gamma Regulates Chemokine Expression and Release in the Human Mast Cell Line HMC1: Role of Nitric Oxide

Overview
Journal Immunology
Date 2007 Jul 31
PMID 17662042
Citations 3
Authors
Affiliations
Soon will be listed here.
Abstract

Mast cells (MCs) are critical immune effector cells that release cytokines and chemokines involved in both homeostasis and disease. Interferon-gamma (IFN-gamma) is a pleiotropic cytokine that regulates multiple cellular activities. IFN-gamma modulates rodent MC responsiveness via production of nitric oxide (NO), although the effects in human MC populations is unknown. We sought to investigate the effects of IFN-gamma on expression of the chemokines interleukin-8 (IL-8) and CCL1 (I-309) in a human mast cell line (HMC1) and to determine the underlying regulatory mechanism. Nitric oxide synthase (NOS), IL-8 and CCL1 expression was determined using real-time polymerase chain reaction (PCR). NOS protein expression was analysed using western blot. NOS activity was determined using the citrulline assay. IL-8 and CCL1 release was measured by specific enzyme-linked immunosorbent assay (ELISA). IFN-gamma inhibited phorbol 12-myristate 13-acetate (PMA)-induced release of IL-8 and CCL1 (by 47 and 38%). Real-time PCR analysis of IFN-gamma-treated HMC1 showed a significant (P < 0.05) time-dependent increase in NOS1 and NOS3 mRNA. NOS3 protein was significantly increased at 18 hr, which correlated with a significant (P < 0.05) increase in constitutive NOS (cNOS) activity. IFN-gamma-induced inhibition of chemokine expression and release was NO dependent, as treatment with the NOS inhibitor N(G)-nitro-l-arginine methyl ester (l-NAME) reduced the IFN-gamma inhibitory effect on IL-8 and CCL1 mRNA expression. NO donors mimicked the IFN-gamma effect. IFN-gamma inhibited PMA-induced cAMP response element binding protein (CREB) phosphorylation and DNA-binding activity. Our observations indicate for the first time that IFN-gamma enhances endogenous NO formation through NOS3 activity, and that NO regulates the transcription and release of IL-8 and CCL1 in a human MC line.

Citing Articles

Pyromeconic acid-enriched Erigeron annuus water extract as a cosmetic ingredient for itch relief and anti-inflammatory activity.

Kang M, Kang M, Kim T, Jeong S, Oh S Sci Rep. 2024; 14(1):4698.

PMID: 38409467 PMC: 10897215. DOI: 10.1038/s41598-024-55365-2.


Zika Virus Infects Human Placental Mast Cells and the HMC-1 Cell Line, and Triggers Degranulation, Cytokine Release and Ultrastructural Changes.

Rabelo K, Goncalves A, de Souza L, Sales A, de Lima S, Trindade G Cells. 2020; 9(4).

PMID: 32316163 PMC: 7227014. DOI: 10.3390/cells9040975.


Effect of rifampin on production of inflammatory mediators in HepG2 liver epithelial cells.

Yuhas Y, Berent E, Ashkenazi S Antimicrob Agents Chemother. 2011; 55(12):5541-6.

PMID: 21930886 PMC: 3232822. DOI: 10.1128/AAC.05149-11.

References
1.
Thomassen M, Raychaudhuri B, Dweik R, Farver C, Buhrow L, Malur A . Nitric oxide regulation of asthmatic airway inflammation with segmental allergen challenge. J Allergy Clin Immunol. 1999; 104(6):1174-82. DOI: 10.1016/s0091-6749(99)70010-2. View

2.
Eastmond N, Banks E, Coleman J . Nitric oxide inhibits IgE-mediated degranulation of mast cells and is the principal intermediate in IFN-gamma-induced suppression of exocytosis. J Immunol. 1997; 159(3):1444-50. View

3.
Okayama Y, Kirshenbaum A, Metcalfe D . Expression of a functional high-affinity IgG receptor, Fc gamma RI, on human mast cells: Up-regulation by IFN-gamma. J Immunol. 2001; 164(8):4332-9. DOI: 10.4049/jimmunol.164.8.4332. View

4.
Wedemeyer J, Tsai M, Galli S . Roles of mast cells and basophils in innate and acquired immunity. Curr Opin Immunol. 2000; 12(6):624-31. DOI: 10.1016/s0952-7915(00)00154-0. View

5.
Shtrichman R, Samuel C . The role of gamma interferon in antimicrobial immunity. Curr Opin Microbiol. 2001; 4(3):251-9. DOI: 10.1016/s1369-5274(00)00199-5. View