Abstract
Three new diketopiperazine derivatives (DKPs), saroclazines A–C (1–3) along with three known DKPs (4–6) were isolated from mangrove-derived fungi Sarocladium kiliense HDN11-84. Saroclazines A–B (1 and 2) possessed a free amide structure, which was first found in sulfur-containing aromatic DKPs. Their structures were elucidated by NMR, HRESIMS and X-ray. The cytotoxic activity of new compounds (1–3) was tested against HeLa cell lines, among which compound 2 showed an IC50 value of 4.2 µM.
Similar content being viewed by others
Change history
06 February 2019
The author would like to include conflict of interest statement of the online published article. The correct conflict of interest statement should read as.
06 February 2019
The author would like to include conflict of interest statement of the online published article. The correct conflict of interest statement should read as.
References
Daniel HS, Andreas H, Thorsten H, Axel AB, Christian H (2014) Opposed effects of enzymatic gliotoxin N- and S-methylations. J Am Chem Soc 136:11674–11679
Das S, Saha R, Dar SA, Ramachandran VG (2010) Acremonium species: a review of the etiological agents of emerging hyalohyphomycosis. Mycopathologia 170:361–375
Ding Z, Zhang LQ, Fu J, Che Q, Li DH, Gu QQ, Zhu TJ (2015) Phenylpyropenes E and F: new meroterpenes from the marine-derived fungus Penicillium concentricum ZLQ-69. J Antibiot 68:748–751
Fernandez-Silva F, Mayayo E, Capilla J, Sutton D, Guarro J (2014a) Combination therapy in the treatment of experimental invasive fungal infection by Sarocladium (Acremonium) kiliense. Int J Antimicrob Agents 44:136–139
Fernandez-Silva F, Capilla J, Mayayo E, Sutton D, Guarro J (2014b) In vitro evaluation of antifungal drug combinations against Sarocladium (Acremonium) kiliense, an opportunistic emergent fungus resistant to antifungal therapies. Antimicrob Agents Chemother 58:1259–1260
Guarro J, Gams W, Pujol I, Gené J (1997) Acremonium species: new emerging fungal opportunists-in vitro antifungal susceptibilities and review. Clin Infect Dis 25:1222–1229
Khan Z, Al-Obaid K, Ahmad S, Ghani AA, Joseph L, Chandy R (2011) Acremonium kiliense: reappraisal of its clinical significance. J Clin Microbiol 49:2342–2347
Mosmann T (1983) Rapid colorimetric assay for cellular growth and survival: application to proliferation and cytotoxicity assays. J Immunol Methods 65:55–63
Perdomo H, Sutton DA, García D, Fothergill AW, Cano J, Gené Summerbell JRC, Rinaldi MG, Guarro J (2011) Spectrum of clinically relevant Acremonium species in the United States. J Clin Microbiol 49:243–256
Rambaud M, Grizzi L (1973) Proteolytic enzyme by fermentation. Ger Offen DE 2238282 A1 19730315
Sakurai M, Hoshino H, Kohno J, Nishio M, Kishi N, Okuda T, Kawano K, Ohnuki T (2003) TMC-260, a new inhibitor of IL-4 signal transduction produced by Acremonium kiliense Grüetz TC 1703. J Antibiot 56:787–791
Summerbell RC, Gueidan C, Schroers HJ, de Hoog GS, Starink M, Rosete YA, Guarro J, Scott JA (2011) Acremonium phylogenetic overview and revision of Gliomastix, Sarocladium, and Trichothecium. Stud Mycol 68:139–162
Usami Y, Aoki S, Hara T, Numata A (2002) New dioxopiperazine metabolites from a Fusarium species separated from a marine alga. J Antibiot 55:655–659
Van HS (1972a) Alkaline protease from Acremonium kiliense. Specificity, kinetics, and effect of pH. Eur J Biochem 28:432–437
Van HS (1972b) Alkaline protease from Acremonium kiliense. The enzyme protein and its properties in solutions of urea and sodium dodecylsulfate. Eur J Biochem 27:436–442
Wang HF, Chen G, Liu Y, Hua HM, Bai J, Pei YH (2015) 1H and 13C NMR assignments of two new piperazine-trione from the fungus Penicillium crustosum YN-HT-15. Magn Reson Chem 53:620–623
Yuan WH, Jiang N, Dong CH, Wei ZW, Wu HK, Chen CF, Zhao YX, Zhou SL, Zhang MM, Zheng WF (2013) Lasiodiplodin analogues from the endophytic fungus Sarocladium kiliense. Chem Pharm Bull 61:363–365
Acknowledgements
This work was financially supported by the Chinese National Natural Science Fund (21372208 and 21542001), Shandong Provincial Natural Science Fund for Distinguished Young Scholars (JQ201422), NSFC–Shandong Joint Fund for Marine Science Research Centers (U1606402), AoShan Talents Program Supported by Qingdao National Laboratory for Marine Science and Technology (2015ASTP-ES09) and Fundamental Research Funds for the Central Universities (201564026).
Author information
Authors and Affiliations
Corresponding author
Electronic supplementary material
Below is the link to the electronic supplementary material.
Rights and permissions
About this article
Cite this article
Li, F., Guo, W., Wu, L. et al. Saroclazines A–C, thio-diketopiperazines from mangrove-derived fungi Sarocladium kiliense HDN11-84. Arch. Pharm. Res. 41, 30–34 (2018). https://doi.org/10.1007/s12272-017-0961-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12272-017-0961-7