Zebrafish embryonic development-interfering macrolides from Streptomyces californicus impact growth and mitochondrial function in human colorectal cancer cells

Tan, Pei Jean and Lau, Beng Fye and Krishnasamy, Getha and Ng, Mei Fong and Husin, Lili Sahira and Ruslan, Nur Faizah and Song, D.S.S. and Velaithan, Vithya and Okuda, Kazuhide Shaun and Patel, Vyomesh (2018) Zebrafish embryonic development-interfering macrolides from Streptomyces californicus impact growth and mitochondrial function in human colorectal cancer cells. Process Biochemistry, 74. pp. 164-174. ISSN 1359-5113

Full text not available from this repository.
Official URL: https://doi.org/10.1016/j.procbio.2018.07.007

Abstract

Microorganisms are now recognized as a keysource of medicine. In this study, we aim to identify and characterize target-specific inhibitors from actinobacteria using zebrafish embryo developmental defect as readouts. From our preliminary screen, we evaluated 176 Malaysian actinobacteria extracts and from these, 15 extracts (8.52%) were observed to be toxic to embryos at 20 μg/mL at 72-h post fertilization (hpf). Detailed characterization of these 15 toxic hits uncovered one extract derived from Streptomyces californicus TY004-069 that arrested zebrafish embryonic development at 4–6 hpf after 24 h treatment, a phenotype indicative potentially targeting mitochondrial activity. Subsequent validation on one of the three isolated compounds from this extract, dimeric dinactin (DD) revealed its ability to disrupt mitochondrial membrane potential (MMP) in human colorectal HCT116 and HT29 cancer cells in a dose-dependent manner and impacting cell proliferation through a cell cycle G1 block. Overall, using zebrafish phenotypic assay, we identified a potential mitochondrial function inhibitor from actinobacteria that warrants further detailed analysis and also demonstrated that macrolides may hold promise as therapeutic molecules for human diseases including cancer.

Item Type: Article
Uncontrolled Keywords: Macrolides; Zebrafish; Actinobacteria; Streptomyces; Mitochondria
Subjects: Q Science > Q Science (General)
Q Science > QH Natural history
Divisions: Faculty of Science > Institute of Biological Sciences
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 27 Feb 2019 02:59
Last Modified: 27 Feb 2019 02:59
URI: http://eprints.um.edu.my/id/eprint/20526

Actions (login required)

View Item View Item