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Published on: March 3, 2023
F-01A, an antibiotic, inhibits lung cancer cells proliferation
Jing Wang1, Xiao-Peng Wu2, Xin-Ming Song3
1Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, China; College of Life Sciences, Hainan Normal University, Haikou 571158, China.
Aim:
In an effort to identify novel, small molecules which can affect the proliferation of lung cancer cells, F-01A, a polyether antibiotic isolated from the fermentation broth of Streptomyces was tested.
Method:
F-01A was tested for its antitumor properties on the lung cancer cell line SPC-A-1, at six doses (0.1, 0.5, 1, 2.5, and 5 μmol·L(-1)), using various cellular assays. Cell viability was measured by the MTT assay, Hochest 33258 was used to study nuclear morphology; DNA ladder and the loss of mitochondrial membrane potential were also evaluated.
Results:
F-01A induces apoptosis against SPC-A-1 cells in a dose-dependent manner. The IC50 is 0.65 μmol·L(-1), and the inhibition at 5 μmol·L(-1) is 87.89%. Further, JC-1 staining indicates F-01A could induce the loss of mitochondrial membrane potential, and the DNA fragment is evident.
Conclusion:
Mechanistic analysis showed that F-01A induced apoptosis of cancer cells probably in the mitochondrial pathway. The antitumor actions of F-01A involve activation of the apoptotic pathway against SPC-A-1 cells, and it may be valuable for further drug development.
Insights
The novel antibiotic F-01A effectively induces apoptosis in lung cancer cells (SPC-A-1) through a dose-dependent mitochondrial pathway. This compound shows significant potential for further development as an anticancer therapeutic.
Area of Science:
- Pharmacology
- Molecular Biology
- Oncology
Background:
- Lung cancer remains a leading cause of cancer-related mortality worldwide.
- Identification of novel small molecules with antiproliferative activity is crucial for advancing lung cancer treatment.
Purpose of the Study:
- To investigate the antitumor properties of F-01A, a polyether antibiotic, against human lung cancer cells.
- To elucidate the mechanism of action of F-01A in inducing cancer cell death.
Main Methods:
- F-01A was tested on the SPC-A-1 lung cancer cell line at various concentrations.
- Cell viability was assessed using MTT assay.
- Apoptosis was evaluated through nuclear morphology, DNA fragmentation, and mitochondrial membrane potential assays.
Main Results:
- F-01A demonstrated dose-dependent induction of apoptosis in SPC-A-1 cells.
- The half-maximal inhibitory concentration (IC50) was determined to be 0.65 μmol·L(-1).
- F-01A treatment led to loss of mitochondrial membrane potential and DNA fragmentation, indicative of apoptosis.
Conclusions:
- F-01A induces apoptosis in lung cancer cells, likely via the mitochondrial pathway.
- The findings suggest F-01A has significant antitumor potential and warrants further investigation for drug development.
- F-01A activates apoptotic pathways, offering a promising avenue for novel lung cancer therapies.
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