1. Immuno-Modulatory and Anti-Inflammatory Effects of Dihydrogracilin A, a Terpene Derived from the Marine Sponge Dendrilla membranosa
- Author
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Silvio Sosa, Angelo Fontana, Elena Ciaglia, Adele Cutignano, Anna Maria Malfitano, Marco Pelin, Mario Abate, Genoveffa Nuzzo, Chiara Laezza, Maurizio Bifulco, Patrizia Gazzerro, Ciaglia, Elena, Malfitano, Anna Maria, Laezza, Chiara, Fontana, Angelo, Nuzzo, Genoveffa, Cutignano, Adele, Abate, Mario, Pelin, Marco, Sosa, Silvio, Bifulco, Maurizio, Gazzerro, Patrizia, Ciaglia, E., Malfitano, A. M., Laezza, C., Fontana, A., Nuzzo, G., Cutignano, A., Abate, M., Bifulco, M., and Gazzerro, P.
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0301 basic medicine ,MAPK/ERK pathway ,Keratinocytes ,lymphocytes ,Aquatic Organisms ,T-Lymphocytes ,marine sponge ,natural compound ,inflammation ,Anti-Inflammatory Agents ,Antarctic sponge ,lcsh:Chemistry ,Immunologic Factor ,Cell Movement ,lcsh:QH301-705.5 ,Spectroscopy ,Marine sponge ,Aquatic Organism ,Computer Science Applications1707 Computer Vision and Pattern Recognition ,General Medicine ,Computer Science Applications ,Porifera ,Killer Cells, Natural ,Anti-Inflammatory Agent ,Biochemistry ,Cytokines ,Biological Product ,Tumor necrosis factor alpha ,medicine.symptom ,Keratinocyte ,Human ,Signal Transduction ,Cell Survival ,Inflammation ,Biology ,lymphocyte ,Peripheral blood mononuclear cell ,Article ,Catalysis ,Inorganic Chemistry ,Immunomodulation ,03 medical and health sciences ,In vivo ,medicine ,Animals ,Humans ,Immunologic Factors ,Physical and Theoretical Chemistry ,Molecular Biology ,Cytokine ,Cell Proliferation ,Biological Products ,dihydrogracilin A ,Cell growth ,Animal ,Terpenes ,Organic Chemistry ,Lymphocytes ,Natural compound ,Molecular biology ,HaCaT ,030104 developmental biology ,lcsh:Biology (General) ,lcsh:QD1-999 ,T-Lymphocyte ,Apoptosis ,Leukocytes, Mononuclear - Abstract
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.
- Published
- 2017
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