PMID- 19275691 OWN - NLM STAT- MEDLINE DCOM- 20091110 LR - 20211203 IS - 2212-4055 (Electronic) IS - 1871-5281 (Linking) VI - 8 IP - 1 DP - 2009 Mar TI - Molecular basis of the anti-inflammatory effects of terpenoids. PG - 28-39 AB - Natural products play a significant role in human health in relation to the prevention and treatment of inflammatory conditions. Among them, terpenoids (also referred to as terpenes), are the largest and most widespread class of secondary metabolites. They are found in higher plants, mosses, liverworts, algae and lichens, and also in insects, microbes or marine organisms. Some terpenoids have been used for therapeutic purposes for centuries as antibacterial, anti-inflammatory, antitumoral agents, and in recent decades research activity into the clinical potential of this class of compounds has increased continuously as a source of pharmacologically interesting agents. In the present review, molecular basis of the anti-inflammatory action of diterpenoids is presented with special emphasis on their ability to modulate critical cell signaling pathways involved in the inflammatory response of the body such as nuclear transcription factor-kappaB (NF-kappaB) activation. NF-kappaB plays an important role in the regulation of immune and inflammatory responses. Indeed, deregulated NF-kappaB expression is a characteristic phenomenon in several inflammatory diseases and NF-kappaB has become a major target in drug discovery. Hence, this article also introduces our recently elucidated findings about the potential of labdane diterpenoids as anti-inflammatory agents due to their ability to inhibit NF-kappaB. The future development of this class of compounds as anti-inflammatory drugs requires the introduction of novel molecular targets of therapeutic relevance in addition to biotechnological approaches for the production of these molecules. FAU - de las Heras, B AU - de las Heras B AD - Departamento de Farmacologia, Facultad de Farmacia, Universidad Complutense, Madrid, Spain. FAU - Hortelano, Sonsoles AU - Hortelano S LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review PL - United Arab Emirates TA - Inflamm Allergy Drug Targets JT - Inflammation & allergy drug targets JID - 101266886 RN - 0 (Anti-Inflammatory Agents) RN - 0 (Diterpenes) RN - 0 (NF-kappa B) RN - 0 (Terpenes) RN - 0 (Tumor Necrosis Factor-alpha) SB - IM MH - Animals MH - Anti-Inflammatory Agents/classification/therapeutic use MH - Autoimmune Diseases/drug therapy MH - Diterpenes/*pharmacology MH - Drug Therapy/trends MH - Humans MH - Hypersensitivity/drug therapy MH - Immunosuppression Therapy MH - *Medicine, Traditional MH - NF-kappa B/*antagonists & inhibitors MH - Neoplasms/drug therapy MH - Signal Transduction/*drug effects/immunology MH - Terpenes/classification/therapeutic use MH - Transcriptional Activation/*drug effects/immunology MH - Tumor Necrosis Factor-alpha/antagonists & inhibitors RF - 83 EDAT- 2009/03/12 09:00 MHDA- 2009/11/11 06:00 CRDT- 2009/03/12 09:00 PHST- 2009/03/12 09:00 [entrez] PHST- 2009/03/12 09:00 [pubmed] PHST- 2009/11/11 06:00 [medline] AID - 10.2174/187152809787582534 [doi] PST - ppublish SO - Inflamm Allergy Drug Targets. 2009 Mar;8(1):28-39. doi: 10.2174/187152809787582534.