14-Norpseurotin A
14-Norpseurotin A shows good antileishmanial and moderate anticancer activities. It also displays significant antimicrobial activities against Escherichia coli, Bacillus subtilis, and Micrococcus lysoleikticus with MICs of 3.74, 14.97, and 7.49 microM , respectively. 14-Norpseurotin A can significantly induce neurite outgrowth of rat pheochromocytoma cells (PC12) at a 10.0 microM concentration.
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Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to
24 months(2-8C).
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
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The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
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Nat Prod Commun. 2012 Feb;7(2):165-8.
Antiparasitic and anticancer constituents of the endophytic fungus Aspergillus sp. strain F1544.[Pubmed:
22474943]
METHODS AND RESULTS:
With the combined goal of finding the best anti-parasitic and anti-cancer activities as well as isolating the bioactive agents and studying their structures and biological properties, we proceeded to perform a small-scale cultivation of Aspergillus sp. strain F1544 using Potato Dextrose, Malt Extract, Czapek Dox and Eight Vegetables media. From the more promising extracts (obtaining using potato dextrose and czapek dox media in large scale) of this fungus, we isolated the five compounds: pseurotin A (1), 14-Norpseurotin A (2), FD-838 (3), and pseurotin D (4), and fumoquinone B (5).
METHODS AND RESULTS:
All compounds showed good antileishmanial and moderate anticancer activities.
J Nat Prod. 2008 Jun;71(6):985-9.
Cytotoxic alkaloids and antibiotic nordammarane triterpenoids from the marine-derived fungus Aspergillus sydowi.[Pubmed:
18505285 ]
METHODS AND RESULTS:
Three new diketopiperazine alkaloids, 6-methoxyspirotryprostatin B (1), 18-oxotryprostatin A (2), and 14-hydroxyterezine D (3), with an oxaspiro[4.4]lactam moiety, 14-Norpseurotin A (4), and the 29-nordammarane triterpenoid 6beta,16beta-diacetoxy-25-hydroxy-3,7-dioxy-29-nordammara-1,17(20)-dien-21-oic acid (5), as well as 12 known compounds (6- 17), were isolated from the ethyl acetate extract of a marine-derived fungal strain, Aspergillus sydowi PFW1-13. The structures of compounds 1- 5 were elucidated by comprehensive spectroscopic analysis.
CONCLUSIONS:
Compounds 1- 3 exhibit weak cytotoxicity against A-549 cells, with IC 50 values of 8.29, 1.28, and 7.31 microM, respectively. Compound 1 also shows slight cytotoxicity against HL-60 cells, with an IC 50 value of 9.71 microM. Compounds 4 and 5 display significant antimicrobial activities against Escherichia coli, Bacillus subtilis, and Micrococcus lysoleikticus with MICs of 3.74, 14.97, and 7.49 microM and 10.65, 5.33, and 10.65 microM, respectively.
J Nat Prod. 2009 Apr;72(4):753-5.
Bioactive alkaloids from endophytic Aspergillus fumigatus.[Pubmed:
19256529 ]
METHODS AND RESULTS:
Two new alkaloids, named 9-deacetylfumigaclavine C (1) and 9-deacetoxyfumigaclavine C (2), along with 12 known compounds (3-14), were isolated from the culture of Aspergillus fumigatus. The structures of the new compounds were elucidated by comprehensive spectroscopic analyses.
CONCLUSIONS:
Compound 2 showed selectively potent cytotoxicity against human leukemia cells (K562) with an IC(50) value of 3.1 microM, which was comparable to that of doxorubicin hydrochloride, a presently prescribed drug for the treatment of leukemia. Furthermore, 14-norpseurotin (14-Norpseurotin A,4) significantly induced neurite outgrowth of rat pheochromocytoma cells (PC12) at a 10.0 microM concentration.
