Three new pigment protein tyrosine phosphatases inhibitors from the insect parasite fungus Cordyceps gracilioides: terreusinone A, pinophilin C and cryptosporioptide A

  • Molecules. 2015 Apr 2;20(4):5825-34. doi: 10.3390/molecules20045825.
Pei-Yao Wei  1 ,  Lin-Xia Liu  2 ,  Ting Liu  3 ,  Chuan Chen  4 ,  Du-Qiang Luo  5  6 ,  Bao-Zhong Shi  7
Affiliations
  • 1. College of Life Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, China. [email protected].
  • 2. College of Life Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, China. [email protected].
  • 3. College of Life Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, China. [email protected].
  • 4. College of Life Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, China. [email protected].
  • 5. College of Life Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, China. [email protected].
  • 6. Biotechnology Center of Hebei Province, Hebei University, Baoding 071002, China. [email protected].
  • 7. Biotechnology Center of Hebei Province, Hebei University, Baoding 071002, China. [email protected].
PMID: 25849805 DOI: 10.3390/molecules20045825
Abstract

Three new pigment compounds--terreusinone A (1), pinophilin C (2) and cryptosporioptide A (3)-were isolated from a solid culture of Cordyceps gracilioides. The structures of these compounds were determined by extensive spectroscopic analysis including HRESIMS, 1D- and 2D-NMR. The structure of terreusinone A (1) was further confirmed by single-crystal X-ray crystallographic diffraction analysis. In an in vitro activity assay, 1, 2 and 3 exhibited high inhibitory activity against PTP1B, SHP2, CDC25B, LAR and SHP1. Terreusinone A (1) inhibited PTP1B, SHP2, CDC25B, LAR and SHP1 enzyme with IC50 values 12.5, >50, 4.1, 10.6, 5.6 µg/mL, respectively; pinophilin C (2) with IC50 values 6.8, 8.0, 4.5, 4.7, 3.4 µg/mL, respectively; and cryptosporioptide A (3) with IC50 values 7.3, 5.7, 7.6, >50, 4.9 µg/mL, respectively.

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