Manumycin A downregulates release of proinflammatory cytokines from TNF alpha stimulated human monocytes
Jazyk angličtina Země Nizozemsko Médium print-electronic
Typ dokumentu časopisecké články, práce podpořená grantem
PubMed
26602157
DOI
10.1016/j.imlet.2015.11.010
PII: S0165-2478(15)30068-7
Knihovny.cz E-zdroje
- Klíčová slova
- Cytokines, Immunomodulation, Manumycin A, Monocytes, THP-1 cells,
- MeSH
- antibakteriální látky farmakologie MeSH
- antiflogistika farmakologie MeSH
- buněčné linie MeSH
- cytokiny genetika metabolismus MeSH
- imunomodulace MeSH
- lidé MeSH
- messenger RNA genetika MeSH
- monocyty účinky léků imunologie MeSH
- polyeny farmakologie MeSH
- polynenasycené alkamidy farmakologie MeSH
- protein 1 časné růstové odpovědi genetika metabolismus MeSH
- receptory interleukinu-1 genetika metabolismus MeSH
- regulace genové exprese účinky léků MeSH
- TNF-alfa metabolismus MeSH
- toll-like receptor 8 genetika metabolismus MeSH
- zánět farmakoterapie imunologie MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- antibakteriální látky MeSH
- antiflogistika MeSH
- cytokiny MeSH
- EGR1 protein, human MeSH Prohlížeč
- manumycin MeSH Prohlížeč
- messenger RNA MeSH
- polyeny MeSH
- polynenasycené alkamidy MeSH
- protein 1 časné růstové odpovědi MeSH
- receptory interleukinu-1 MeSH
- TNF-alfa MeSH
- toll-like receptor 8 MeSH
Macrolide antibiotics such as azithromycin or clarithromycin are known to have potent anti-inflammatory and immunomodulatory effects but these properties cannot be widely used due to a risk of bacterial resistance. We studied another polyketide antibiotic, structurally related manumycin A known as a streptomycete derived farnesyltransferase inhibitor with limited antibacterial effects, with respect to its potential regulation of mRNA expression of several genes associated with proinflammatory responses. Downregulation of mRNA for IL-6, TLR-8, IL-1 beta and IL-10 was found in THP-1 cells after 4h stimulation with TNF alpha in the presence of manumycin A and downregulated TLR-8 and EGR-1 genes were observed after 8h. Among the genes upregulated in response to manumycin were HMOX-1, TNFRSF10A, IL-1R1, TICAM2, NLRP12 after 4h and only IL-1R1 after 8h. Furthermore, manumycin A was found to inhibit IL-1beta, IL-6, and IL-8 production in TNF alpha stimulated THP-1 cells and peripheral blood monocytes in a dose dependent manner (0.25-1 μM of manumycin A) without affecting cell viability. Cell viability of blood monocytes decreased by about 30% at manumycin A doses of 2-5 μM. Manumycin A also inhibited IL-18 release from THP-1 cells, while in cultures of blood monocytes, this cytokine was not detectable. That manumycin A mediated downregulation of proinflammatory genes in human monocytes confirmed by a measurement of cytokine levels in culture supernatants, together with a very limited effect on cell viability, might suggest potential anti-inflammatory properties of this polyketide antibiotic.
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