Anti-inflammatory sesquiterpene pyridine alkaloids from Tripterygium wilfordii. 2015

Chang Gao, and Xiao-Xiao Huang, and Ming Bai, and Jie Wu, and Jian-You Li, and Qing-Bo Liu, and Ling-Zhi Li, and Shao-Jiang Song
School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 11016, PR China; Key Laboratory of Structure-Based Drug Design & Discovery (Ministry of Education), Shenyang Pharmaceutical University, Shenyang 110016, PR China.

During a screening procedure involving higher plants to find novel candidates for use as anti-inflammatory agents, Tripterygium wilfordii Hook. f. was shown to exhibit considerable inhibitory activity. Five new sesquiterpene pyridine alkaloids, tripterygiumines S-W (1-4,15), along with 14 known dihydroagarofuran derivatives, were isolated from the roots of the T. wilfordii Hook. f. Their structures were established by extensive use of spectroscopic techniques, including 1D and 2D NMR spectroscopy and high-resolution mass spectrometry. All compounds were evaluated for their anti-inflammatory activity by measuring the nitric oxide production by the LPS-induced murine macrophage cell line RAW264.7. It was found that 1, 5, and 19 possessed potent nitric oxide inhibitory activity with IC50 values ranging from 2.99 to 28.80 μM, without any effect on the cell viability of RAW264.7 cells. Accordingly, compounds 1, 5, and 19, especially 5, were identified as promising candidates for further scientific investigation of their potential use as anti-inflammatory agents.

UI MeSH Term Description Entries
D009569 Nitric Oxide A free radical gas produced endogenously by a variety of mammalian cells, synthesized from ARGININE by NITRIC OXIDE SYNTHASE. Nitric oxide is one of the ENDOTHELIUM-DEPENDENT RELAXING FACTORS released by the vascular endothelium and mediates VASODILATION. It also inhibits platelet aggregation, induces disaggregation of aggregated platelets, and inhibits platelet adhesion to the vascular endothelium. Nitric oxide activates cytosolic GUANYLATE CYCLASE and thus elevates intracellular levels of CYCLIC GMP. Endogenous Nitrate Vasodilator,Mononitrogen Monoxide,Nitric Oxide, Endothelium-Derived,Nitrogen Monoxide,Endothelium-Derived Nitric Oxide,Monoxide, Mononitrogen,Monoxide, Nitrogen,Nitrate Vasodilator, Endogenous,Nitric Oxide, Endothelium Derived,Oxide, Nitric,Vasodilator, Endogenous Nitrate
D000067996 RAW 264.7 Cells A transformed macrophage cell line isolated from ASCITES of mice infected with ABELSON MURINE LEUKEMIA VIRUS. RAW 264.7 Cell Line,264.7 Cell, RAW,264.7 Cells, RAW,Cell, RAW 264.7,Cells, RAW 264.7,RAW 264.7 Cell
D000470 Alkaloids Organic nitrogenous bases. Many alkaloids of medical importance occur in the animal and vegetable kingdoms, and some have been synthesized. (Grant & Hackh's Chemical Dictionary, 5th ed) Alkaloid,Plant Alkaloid,Plant Alkaloids,Alkaloid, Plant,Alkaloids, Plant
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000893 Anti-Inflammatory Agents Substances that reduce or suppress INFLAMMATION. Anti-Inflammatory Agent,Antiinflammatory Agent,Agents, Anti-Inflammatory,Agents, Antiinflammatory,Anti-Inflammatories,Antiinflammatories,Antiinflammatory Agents,Agent, Anti-Inflammatory,Agent, Antiinflammatory,Agents, Anti Inflammatory,Anti Inflammatories,Anti Inflammatory Agent,Anti Inflammatory Agents
D012717 Sesquiterpenes Fifteen-carbon compounds formed from three isoprenoid units with general formula C15H24. Farnesanes,Farnesene,Farnesenes,Sesquiterpene,Sesquiterpene Derivatives,Sesquiterpenoid,Sesquiterpenoids,Derivatives, Sesquiterpene
D015394 Molecular Structure The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds. Structure, Molecular,Molecular Structures,Structures, Molecular
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus
D018517 Plant Roots The usually underground portions of a plant that serve as support, store food, and through which water and mineral nutrients enter the plant. (From American Heritage Dictionary, 1982; Concise Dictionary of Biology, 1990) Plant Bulbs,Plant Root,Bulb, Plant,Bulbs, Plant,Plant Bulb,Root, Plant,Roots, Plant
D029757 Tripterygium A plant genus of the family CELASTRACEAE that is a source of triterpenoids and diterpene epoxides such as triptolide. Tripterygium wilfordii,Leigong Teng,Thundergod Vine,Tripterygium hypoglaucum,Leigong Tengs,Teng, Leigong,Tengs, Leigong,Thundergod Vines,Tripterygium hypoglaucums,Tripterygium wilfordius,Tripterygiums,Vine, Thundergod,Vines, Thundergod,hypoglaucums, Tripterygium,wilfordius, Tripterygium

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