The receptor tyrosine kinase Axl in cancer: biological functions and therapeutic implications

Juliano D Paccez1, Matjaz Vogelsang, M Iqbal Parker

  • 1International Centre for Genetic Engineering and Biotechnology (ICGEB), Cape Town, South Africa; Division of Medical Biochemistry, University of Cape Town, Cape Town, South Africa.

Insights

The receptor tyrosine kinase Axl is upregulated in many cancers and drives tumor formation and therapeutic resistance. Inhibiting Axl shows promise as a new cancer treatment strategy, particularly for acute myeloid leukemia and other solid tumors.

Area of Science:

  • Oncology
  • Molecular Biology
  • Pharmacology

Background:

  • The receptor tyrosine kinase Axl is increasingly recognized for its role in cancer malignancy.
  • Axl upregulation is observed across various cancer types, suggesting its significance in tumorigenesis.
  • Axl inhibition has demonstrated efficacy in blocking tumor formation in preclinical models.

Purpose of the Study:

  • To review the functions, regulation, and role of Axl in cancer development.
  • To discuss Axl's involvement in therapeutic resistance.
  • To highlight Axl as a potential drug target for specific cancers.

Main Methods:

  • Literature review of existing research on Axl signaling pathways.
  • Analysis of studies investigating Axl's function in cancer progression.
  • Examination of data on Axl's impact on treatment response and resistance.

Main Results:

  • Axl signaling contributes to cancer cell proliferation, survival, and metastasis.
  • Axl expression is linked to resistance to various chemotherapeutic agents.
  • Targeting Axl may overcome treatment resistance and improve patient outcomes.

Conclusions:

  • Axl is a critical mediator of cancer malignancy and a significant driver of therapeutic resistance.
  • Axl represents a promising therapeutic target for cancers including acute myeloid leukemia, breast, prostate, and non-small cell lung cancer.
  • Further research into Axl-targeted therapies is warranted to improve cancer treatment efficacy.

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