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Wang D, Wang H, Chen X, Xu Y, He W, Wu D, Zuo M, Zhu W, Wang L. Five previously undescribed citrinin derivatives from the endophytic fungus Penicillium citrinum GZWMJZ-836. Phytochemistry 2024; 220:114032. [PMID: 38369172 DOI: 10.1016/j.phytochem.2024.114032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 02/13/2024] [Accepted: 02/15/2024] [Indexed: 02/20/2024]
Abstract
Penicillium citrinum GZWMJZ-836 is an endophytic fungus from Drynaria roosii Nakaike. Five previously undescribed citrinin derivatives (1-5) and six intermediates related to their biosynthesis (6-11) were obtained from the extract of this strain's solid fermentation using multiple column chromatography separations, including high-performance liquid chromatography. The structures of these compounds were determined through comprehensive spectroscopic analyses, primarily using NMR and HRESIMS data. The stereochemistry was mainly confirmed by ECD calculations, and the configurations of C-7' in compounds 4 and 5 were determined using 13C NMR calculations. Compounds 4-5 and 8 showed antibacterial activity against five strains, with minimum inhibitory concentration values ranging from 7.8 to 125 μM. Compounds 4 and 7 exhibited inhibitions against three plant pathogenic fungi, with IC50 values ranging from 66.6 to 152.1 μM. Additionally, a putative biosynthetic pathway for compounds 1-5 derived from citrinin was proposed.
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Affiliation(s)
- Dongyang Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China; Natural Product Research Center of Guizhou Province, Guiyang, 550014, China
| | - Huanhuan Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China; Natural Product Research Center of Guizhou Province, Guiyang, 550014, China; School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, 550025, China
| | - Xuli Chen
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China; Natural Product Research Center of Guizhou Province, Guiyang, 550014, China; School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, 550025, China
| | - Yanchao Xu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China; School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, 550025, China
| | - Wenwen He
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China; Natural Product Research Center of Guizhou Province, Guiyang, 550014, China
| | - Dan Wu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China; Natural Product Research Center of Guizhou Province, Guiyang, 550014, China
| | - Mingxing Zuo
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China; Natural Product Research Center of Guizhou Province, Guiyang, 550014, China
| | - Weiming Zhu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266003, China.
| | - Liping Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, China; Natural Product Research Center of Guizhou Province, Guiyang, 550014, China.
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Yin Y, Wang D, Wu D, He W, Zuo M, Zhu W, Xu Y, Wang L. Two New 4-Hydroxy-2-pyridone Alkaloids with Antimicrobial and Cytotoxic Activities from Arthrinium sp. GZWMJZ-606 Endophytic with Houttuynia cordata Thunb. Molecules 2023; 28. [PMID: 36903438 DOI: 10.3390/molecules28052192] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/22/2023] [Accepted: 02/22/2023] [Indexed: 03/02/2023] Open
Abstract
Two new 4-hydroxy-2-pyridone alkaloids furanpydone A and B (1 and 2), along with two known compounds N-hydroxyapiosporamide (3) and apiosporamide (4) were isolated from the endophytic fungus Arthrinium sp. GZWMJZ-606 in Houttuynia cordata Thunb. Furanpydone A and B had unusual 5-(7-oxabicyclo[2.2.1]heptane)-4-hydroxy-2-pyridone skeleton. Their structures including absolute configurations were determined on the basis of spectroscopic analysis, as well as the X-ray diffraction experiment. Compound 1 showed inhibitory activity against ten cancer cell lines (MKN-45, HCT116, K562, A549, DU145, SF126, A-375, 786O, 5637, and PATU8988T) with IC50 values from 4.35 to 9.72 µM. Compounds 1, 3 and 4 showed moderate inhibitory effects against four Gram-positive strains (Staphylococcus aureus, methicillin-resistant S. aureus, Bacillus Subtilis, Clostridium perfringens) and one Gram-negative strain (Ralstonia solanacarum) with MIC values from 1.56 to 25 µM. However, compounds 1-4 showed no obvious inhibitory activity against two Gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa) and two pathogenic fungi (Candida albicans and Candida glabrata) at 50 µM. These results show that compounds 1-4 are expected to be developed as lead compounds for antibacterial or anti-tumor drugs.
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Li G, Wu D, Xu Y, He W, Wang D, Zhu W, Wang L. Synthesis and Antitumor Activity of Staurosporine Derivatives. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221103036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Twenty-four derivatives of staurosporine were synthesized by modification at the 3′- N, 3- and 7-positions. Of these compounds, 16 were synthesized for the first time and their structures were determined by NMR spectroscopy, ECD, and HRESIMS. Their inhibitory activities against seven tumor cell lines, MV4-11 (leukemia), MCF-7 (breast carcinoma), HCT-116 (colon cancer), TE-1 (esophageal carcinoma), PATU8988 T (pancreatic cancer), HOS (osteosarcoma) and GBC-SD (gallbladder cancer), and human normal liver cell L-02 were evaluated using a Cell Counting Kit-8. The IC50 values for 7-oxo-3′- N-benzoylstaurosporin (4) on MV4-11 and PATU8988 T cells were 0.078 and 0.666 μmol/L, and the selection indexes were 1254 and 147, respectively. The IC50 values of 7-oxo-3-chloro-3′- N-benzoylstaurosporine (5) and (7 R)-7-hydroxy-3-bromo-3′- N-acetylstaurosporine (24) on MCF-7 cells were 0.029 and 0.021 μmol/L, and the selection indexes were 102 and 221, respectively. The above compounds have the potential to be developed further into antitumor drugs due to the advantages of high efficiency and low toxicity.
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Affiliation(s)
- Gang Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, PR China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang, PR China
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, PR China
| | - Dan Wu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, PR China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang, PR China
| | - Yanchao Xu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, PR China
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, PR China
| | - Wenwen He
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, PR China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang, PR China
| | - Dongyang Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, PR China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang, PR China
| | - Weiming Zhu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, PR China
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, PR China
| | - Liping Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, PR China
- Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang, PR China
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, PR China
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