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001-es BibID:BIBFORM080474
Első szerző:Ariantari, Ni P.
Cím:Expanding the chemical diversity of an endophytic fungus Bulgaria inquinans, an ascomycete associated with mistletoe, through an OSMAC approach / Ni P. Ariantari, Georgios Daletos, Attila Mándi, Tibor Kurtán, Werner E. G. Müller, Wenhan Lin, Elena Ancheeva, Peter Proksch
Dátum:2019
ISSN:2046-2069 2046-2069
Megjegyzések:An endophytic fungus Bulgaria inquinans (isolate MSp3-1), isolated from mistletoe (Viscum album), was subjected to fermentation on solid Czapek medium. Chromatographic workup of the crude EtOAc extract yielded five new natural products (1?5). Subsequent application of the "One Strain, Many Compounds" (OSMAC) strategy on this strain by the addition of a mixture of salts (MgSO4, NaNO3 and NaCl) to solid Czapek medium induced the accumulation of nine additional new secondary metabolites (6?13, 16), with most of them (8, 10?12) not detectable in cultures lacking the salt mixture. The structures of the new compounds were established on the basis of the 1D/2D NMR and HRESIMS data. The TDDFT-ECD method was applied to determine the absolute configurations of the new compounds 1, 4 and 6 as well as of the previously reported bulgarialactone B (14), for which the absolute configuration was unknown so far. The modified Mosher's method was performed to assign the absolute configurations of 12 and 13. TDDFT-ECD analysis also allowed determining the absolute configuration of (+)-epicocconone, which had an enantiomeric absolute configuration in the tricyclic moiety compared to that of bulgarialactone B (14). All the isolated metabolites were evaluated for their cytotoxic activity. Compound 2 was found to possess strong cytotoxic activity against the murine lymphoma cell line L5178Y with an IC50 value of 1.8 mM, while the remaining metabolites were shown to be inactive.
Tárgyszavak:Természettudományok Kémiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:RSC Advances. - 9 : 43 (2019), p. 25119-25132. -
További szerzők:Daletos, Georgios Mándi Attila (1981-) (vegyész, német szakfordító) Kurtán Tibor (1973-) (vegyész, angol szakfordító) Müller, Werner E. G. Lin, Wen Han Ancheeva, Elena Proksch, Peter
Pályázati támogatás:NKFI K120181
Egyéb
NKFI PD121020
Egyéb
GINOP-2.3.2-15-2016-00008
GINOP
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001-es BibID:BIBFORM080011
035-os BibID:(WOS)000473827300003 (Scopus)85068241187
Első szerző:Ariantari, Ni P.
Cím:Indole Diterpenoids from an Endophytic Penicillium sp. / Ni P. Ariantari, Elena Ancheeva, Chenyin Wang, Attila Mándi, Tim-O. Knedel, Tibor Kurtán, Chaidir Chaidir, Werner E. G. Müller, Matthias U. Kassack, Christoph Janiak, Georgios Daletos, Peter Proksch
Dátum:2019
ISSN:0163-3864 1520-6025
Megjegyzések:A chemical investigation of the endophyte Penicillium sp. (strain ZO-R1-1), isolated from roots of the medicinal plant Zingiber of f icinale, yielded nine new indole diterpenoids (1-9), together with 13 known congeners (10-22). The structures of the new compounds were elucidated by 1D and 2D NMR analysis in combination with HRESIMS data. The absolute configuration of the new natural products 1, 3, and 7 was determined using the TDDFT-ECD approach and confirmed for 1 by single-crystal X-ray determination through anomalous dispersion. The isolated compounds were tested for cytotoxicity against L5178Y, A2780, J82, and HEK-293 cell lines. Compound 1 was the most active metabolite toward L5178Y cells, with an IC50 value of 3.6 mu M, and an IC50 against A2780 cells of 8.7 mu M. Interestingly, 1 features a new type of indole diterpenoid scaffold with a rare 6/5/6/6/6/6/5 heterocyclic system bearing an aromatic ring C, which is suggested to be important for the cytotoxic activity of this natural product against L5278Y and A2780 cells.
Tárgyszavak:Természettudományok Kémiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Journal of Natural Products. - 82 : 6 (2019), p. 1412-1423. -
További szerzők:Ancheeva, Elena Wang, Chen-Yin Mándi Attila (1981-) (vegyész, német szakfordító) Knedel, Tim-O. Kurtán Tibor (1973-) (vegyész, angol szakfordító) Chaidir, Chaidir Müller, Werner E. G. Kassack, Matthias Janiak, Christoph Daletos, Georgios Proksch, Peter
Pályázati támogatás:GINOP-2.3.2-15-2016-00008
GINOP
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
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