Wei Jinjuan, Li Zhe-Xi, Peng Gao-Ke, Li Xinyang, Chen He-Ping, Liu Ji-Kai
School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan, 430074, China.
Nat Prod Bioprospect. 2025 Mar 31;15(1):20. doi: 10.1007/s13659-025-00505-y.
The basidiomycetes Stereum hirsutum and Boreostereum vibrans are two fungi of the same genus. In this study, chemical investigation on the co-cultures of the two congeneric fungi led to the isolation of eleven new vibralactone derivatives, hirsutavibrins A-K (1-11). The structures of 1-11 were elucidated by extensive NMR and HRESIMS spectroscopic analysis, and computational methods. Hirsutavibrins A (1) and B (2) showed weak cytotoxicity against the human lung cancer cell line A549. Hirsutavibrin D (4) showed moderate anti-nitric oxide activity in murine monocytic RAW 264.7 macrophages. This work not only expands the members of vibralactone derivatives with variable configurations but also opens a new avenue for fungal co-culturing study between congeneric fungi.
担子菌纲的毛栓菌(Stereum hirsutum)和颤杨生卧孔菌(Boreostereum vibrans)是同一属的两种真菌。在本研究中,对这两种同属真菌的共培养物进行化学研究,分离得到了11种新的振动内酯衍生物,即毛栓菌振动素A - K(1 - 11)。通过广泛的核磁共振(NMR)和高分辨电喷雾电离质谱(HRESIMS)光谱分析以及计算方法确定了1 - 11的结构。毛栓菌振动素A(1)和B(2)对人肺癌细胞系A549显示出较弱的细胞毒性。毛栓菌振动素D(4)在小鼠单核巨噬细胞RAW 264.7中显示出中等程度的抗一氧化氮活性。这项工作不仅扩展了具有可变构型的振动内酯衍生物的成员,也为同属真菌之间的共培养研究开辟了一条新途径。