Immuno-Modulatory and Anti-Inflammatory Effects of Dihydrogracilin A, a Terpene Derived from the Marine Sponge Dendrilla membranosa

We assessed the immunomodulatory and anti-inflammatory effects of 9,11-dihydrogracilin A (DHG), a molecule derived from the Antarctic marine sponge Dendrilla membranosa. We used in vitro and in vivo approaches to establish DHG properties. Human peripheral blood mononuclear cells (PBMC) and human ker...

Full description

Bibliographic Details
Published in:International Journal of Molecular Sciences
Main Authors: Elena Ciaglia, Anna Maria Malfitano, Chiara Laezza, Angelo Fontana, Genoveffa Nuzzo, Adele Cutignano, Mario Abate, Marco Pelin, Silvio Sosa, Maurizio Bifulco, Patrizia Gazzerro
Format: Article in Journal/Newspaper
Language:English
Published: MDPI AG 2017
Subjects:
marine sponge
natural compound
inflammation
lymphocytes
Biology (General)
QH301-705.5
Chemistry
QD1-999
Antarctic
The Antarctic
Antarc*
Online Access:https://doi.org/10.3390/ijms18081643
https://doaj.org/article/d9b024ca90c2489380ccd57b64d4ad5b
Description
Summary:We assessed the immunomodulatory and anti-inflammatory effects of 9,11-dihydrogracilin A (DHG), a molecule derived from the Antarctic marine sponge Dendrilla membranosa. We used in vitro and in vivo approaches to establish DHG properties. Human peripheral blood mononuclear cells (PBMC) and human keratinocytes cell line (HaCaT cells) were used as in vitro system, whereas a model of murine cutaneous irritation was adopted for in vivo studies. We observed that DHG reduces dose dependently the proliferative response and viability of mitogen stimulated PBMC. In addition, DHG induces apoptosis as revealed by AnnexinV staining and downregulates the phosphorylation of nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), signal transducer and activator of transcription (STAT) and extracellular signal–regulated kinase (ERK) at late time points. These effects were accompanied by down-regulation of interleukin 6 (IL-6) production, slight decrease of IL-10 and no inhibition of tumor necrosis factor-alpha (TNF-α) secretion. To assess potential properties of DHG in epidermal inflammation we used HaCaT cells; this compound reduces cell growth, viability and migration. Finally, we adopted for the in vivo study the croton oil-induced ear dermatitis murine model of inflammation. Of note, topical use of DHG significantly decreased mouse ear edema. These results suggest that DHG exerts anti-inflammatory effects and its anti-edema activity in vivo strongly supports its potential therapeutic application in inflammatory cutaneous diseases.

Similar Items