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RAS-MAPK in ALK targeted therapy resistance
Gorjan Hrustanovic1,2, Trever G Bivona1,2
1a Department of Medicine ; University of California at San Francisco ; San Francisco , CA USA.
Abstract:
The clinical success of ALK targeted therapy is limited by resistance. To identify rational co-targeting strategies to enhance clinical outcomes, we explored the molecular basis of ALK oncogene dependence in ALK gene rearrangement positive (ALK+) lung adenocarcinoma. We discovered that the RAS-RAF-MEK-ERK pathway is the critical downstream pathway necessary for ALK+ tumor cell survival. Upfront co-targeting of ALK plus MEK enhanced response and forestalled resistance in preclinical ALK+ tumor models, providing rationale for a new approach the treatment of ALK+ patients.
Insights
Resistance limits ALK targeted therapy. Targeting ALK and MEK pathways together improved responses and prevented resistance in ALK-positive lung cancer models, suggesting a new treatment strategy.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Therapeutics
Background:
- Anaplastic Lymphoma Kinase (ALK) targeted therapy is a key treatment for ALK gene rearrangement positive (ALK+) lung adenocarcinoma.
- Clinical efficacy of ALK inhibitors is often compromised by the development of drug resistance.
- Understanding the molecular mechanisms driving ALK+ tumor cell survival is crucial for developing effective co-targeting strategies.
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