Related Experiment Video
Updated: Apr 30, 2026
Pre-Conditioning the Airways of Mice with Bleomycin Increases the Efficiency of Orthotopic Lung Cancer Cell Engraftment
Published on: June 28, 2018
Bone morphogenetic protein-focused strategies to induce cytotoxicity in lung cancer cells
Anastasios Fotinos1, Narayani Nagarajan, Adriano S Martins
1185 South Orange Ave., Newark, NJ 07103, U.S.A. rogersmb@umdnj.edu.
Background:
High bone morphogenetic protein (BMP)-2 expression in lung carcinoma correlates with poor patient prognosis. The present study explored strategies to repress BMP signaling.
Materials And Methods:
The cytotoxicity of BMP2-knockdown, dorsomorphin derivatives, and microRNAs was tested in transformed and non-transformed lung cells. Microarray analyses of 1,145 microRNAs in A549 lung adenocarcinoma cells and two other transformed lung cell types relative to BEAS-2B bronchial epithelial cells were performed.
Results:
Reduced BMP2 synthesis inhibited A549 cell growth. The dorsomorphin derivative LDN-193189, but not DMH1 or DMH4, was strongly cytotoxic towards A549 cells, but not towards BEAS-2B cells. Microarray analysis revealed that 106 miRNAs were down-regulated and 69 miRNAs were up-regulated in the three transformed lines. Three down-regulated miRNAs, hsa-mir-34b, hsa-mir-34c-3p, and hsa-miR-486-3p, repressed a BMP2 reporter gene and were cytotoxic in A549 cells, but not towards BEAS-2B cells.
Conclusion:
The observed cytotoxicity suggests that reducing BMP signaling is a useful line of attack for therapy of lung cancer.
Insights
Reducing bone morphogenetic protein-2 (BMP) signaling inhibits lung cancer cell growth. Specific microRNAs and the drug LDN-193189 show promise for lung cancer therapy by targeting BMP signaling pathways.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- High bone morphogenetic protein (BMP)-2 expression in lung carcinoma is linked to poor patient prognosis.
- BMP signaling pathways are implicated in the development and progression of lung cancer.
Purpose of the Study:
- To explore strategies for repressing BMP signaling in lung cancer.
- To evaluate the therapeutic potential of targeting BMP signaling.
Main Methods:
- Assessed cytotoxicity of BMP2-knockdown, dorsomorphin derivatives (LDN-193189, DMH1, DMH4), and microRNAs in lung cancer cells and normal lung cells.
- Performed microarray analysis of 1,145 microRNAs in A549 lung adenocarcinoma cells and other transformed lung cell lines.
Main Results:
- Reduced BMP2 synthesis inhibited A549 lung cancer cell growth.
- LDN-193189 demonstrated significant cytotoxicity in A549 cells but not normal bronchial cells.
- Identified three down-regulated microRNAs (hsa-mir-34b, hsa-mir-34c-3p, hsa-miR-486-3p) that repressed BMP2 and were cytotoxic to A549 cells.
Conclusions:
- Targeting BMP signaling pathways represents a viable therapeutic strategy for lung cancer.
- Specific microRNAs and LDN-193189 show potential as novel lung cancer therapeutics.
