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APMIS. 2019 Feb 25. doi: 10.1111/apm.12940. [Epub ahead of print]

Targeting Anaplastic Lymphoma Kinase in neuroblastoma.

Author information

1
Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, SE-405 30, Sweden.

Abstract

Over the last decade Anaplastic Lymphoma Kinase (ALK), a receptor tyrosine kinase (RTK), has been identified as a fusion partner in a diverse variety of translocation events resulting in oncogenic signaling in many different cancer types. In tumors where full-length ALK RTK itself is mutated, such as neuroblastoma, the picture regarding the role of ALK as an oncogenic driver is less clear. Neuroblastoma is a complex and heterogeneous tumor that arises from the neural crest derived peripheral nervous system. Although high-risk neuroblastoma is rare, it often relapses and becomes refractory to treatment. Thus, neuroblastoma accounts for 10-15% of all childhood cancer deaths. Since most cases are in children under the age of two, understanding the role and regulation of ALK during neural crest development is an important goal in addressing neuroblastoma tumorigenesis. An impressive array of tyrosine kinase inhibitors (TKIs) that act to inhibit ALK have been FDA approved for use in ALK-driven cancers. ALK TKIs bind differently within the ATP-binding pocket of the ALK kinase domain and have been associated with different resistance mutations within ALK itself that arise in response to therapeutic use, particularly in ALK-fusion positive NSCLC. This patient population has highlighted the importance of considering the relevant ALK TKI to be used for a given ALK mutant variant. In this review we discuss ALK in neuroblastoma, as well as the use of ALK TKIs and other strategies to inhibit tumor growth. Current efforts combining novel approaches and increasing our understanding of the oncogenic role of ALK in neuroblastoma are aimed at improving the efficacy of ALK TKIs as precision medicine options in the clinic. This article is protected by copyright. All rights reserved.

KEYWORDS:

NSCLC ; Anaplastic Lymphoma Kinase; neuroblastoma

PMID:
30803032
DOI:
10.1111/apm.12940

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