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Targeting ALK in Cancer: Therapeutic Potential of Proapoptotic Peptides
Arthur Aubry1,2, Stéphane Galiacy3,4,5, Michèle Allouche6,7
1Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada. arthur-aubry@hotmail.fr.
Abstract:
ALK is a receptor tyrosine kinase, associated with many tumor types as diverse as anaplastic large cell lymphomas, inflammatory myofibroblastic tumors, breast and renal cell carcinomas, non-small cell lung cancer, neuroblastomas, and more. This makes ALK an attractive target for cancer therapy. Since ALK⁻driven tumors are dependent for their proliferation on the constitutively activated ALK kinase, a number of tyrosine kinase inhibitors have been developed to block tumor growth. While some inhibitors are under investigation in clinical trials, others are now approved for treatment, notably in ALK-positive lung cancer. Their efficacy is remarkable, however limited in time, as the tumors escape and become resistant to the treatment through different mechanisms. Hence, there is a pressing need to target ALK-dependent tumors by other therapeutic strategies, and possibly use them in combination with kinase inhibitors. In this review we will focus on the therapeutic potential of proapoptotic ALK-derived peptides based on the dependence receptor properties of ALK. We will also try to make a non-exhaustive list of several alternative treatments targeting ALK-dependent and independent signaling pathways.
Insights
Anaplastic lymphoma kinase (ALK) is a key target in cancer therapy. New strategies, including ALK-derived peptides, are needed to overcome resistance to current ALK inhibitors.
Area of Science:
- Oncology
- Molecular Biology
- Drug Discovery
Background:
- Anaplastic lymphoma kinase (ALK) is a receptor tyrosine kinase implicated in various cancers.
- ALK-driven tumors rely on activated ALK for proliferation, making it a therapeutic target.
- Current ALK inhibitors show efficacy but are limited by acquired tumor resistance.
Purpose of the Study:
- To review the therapeutic potential of proapoptotic ALK-derived peptides.
- To explore alternative treatment strategies for ALK-dependent and independent signaling pathways.
- To address the need for novel therapies against ALK-driven tumors that develop resistance.
Main Methods:
- Literature review focusing on ALK as a cancer target.
- Analysis of ALK's dependence receptor properties for therapeutic peptide development.
- Compilation of alternative treatments targeting ALK signaling pathways.
Main Results:
- ALK is a validated target across diverse tumor types.
- Tyrosine kinase inhibitors targeting ALK are approved but face resistance.
- Proapoptotic ALK-derived peptides represent a promising therapeutic avenue.
- Alternative and combination therapies are crucial for sustained tumor control.
Conclusions:
- Targeting ALK remains critical in oncology.
- Overcoming resistance to ALK inhibitors requires novel therapeutic approaches.
- ALK-derived peptides and combination strategies offer potential for improved cancer treatment outcomes.
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