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Updated: Jun 9, 2026

Pre-clinical Evaluation of Tyrosine Kinase Inhibitors for Treatment of Acute Leukemia
Published on: September 18, 2013
[ABL1, SRC and other non-receptor protein tyrosine kinases as new targets for specific anticancer therapy]
1Interní klinika, klinika hematologie VFN a 1. LF UK v Praze. pavel.klener@ruk.cuni.cz
Abstract:
Non-receptor protein tyrosine kinases are responsible for signal transduction during many physiologic cellular processes, including cell growth and proliferation, apoptosis, differentiation, regulation of actin cytoskeleton, cell shape, adhesion, motility and migration. Aberrant activity of protein tyrosine kinases (acquired as a result of chromosomal translocation or point mutation) has been implicated in the stimulation of cancer growth and progression, the induction of drug-resistance, tumour neovascularization, tissue invasion, extravasation and the formation of metastases. Small molecule tyrosine kinase inhibitors interfere with these pathophysiological circuits by blocking the signalling cascades triggered by the aberrantly activated protein tyrosine kinases (e.g. BCR-ABL1, FIP1L1-PDGFRA or ETV6-PDGFRB).Tyrosine kinase inhibitors (imatinib, nilotinib, dasatinib) now belong to established anti-cancer agents with clinical activity in patients with CML, Ph+ ALL, and myeloid neoplasms with overexpression of PDGFRA, PDGFRB and wild-type KIT. New generation tyrosine kinase inhibitors (e.g. dasatinib) with extended activity against SRC and EPH kinases belong to promising anti-cancer agents with documented preclinical activity in several solid tumours (e.g. prostate cancer).
Insights
Protein tyrosine kinases regulate cell functions, but their abnormal activity drives cancer. Small molecule tyrosine kinase inhibitors are effective anti-cancer agents, particularly for CML and certain solid tumors.
Area of Science:
- Cellular Biology
- Biochemistry
- Oncology
Context:
- Non-receptor protein tyrosine kinases are crucial for physiological cellular processes like growth, proliferation, and motility.
- Aberrant protein tyrosine kinase activity, due to mutations or translocations, is linked to cancer progression, drug resistance, and metastasis.
Purpose:
- To review the role of non-receptor protein tyrosine kinases in cellular signaling and cancer.
- To highlight the therapeutic potential of small molecule tyrosine kinase inhibitors (TKIs) in treating various cancers.
Summary:
- Small molecule TKIs target aberrantly activated tyrosine kinases (e.g., BCR-ABL1, PDGFRA, PDGFRB), disrupting cancer-promoting signaling pathways.
- Established TKIs like imatinib, nilotinib, and dasatinib show clinical efficacy in Chronic Myeloid Leukemia (CML) and Philadelphia chromosome-positive Acute Lymphoblastic Leukemia (Ph+ ALL).
- Newer generation TKIs, such as dasatinib, exhibit preclinical activity against solid tumors by inhibiting kinases like SRC and EPH.
Impact:
- TKIs represent established and promising anti-cancer agents, offering targeted therapies for hematologic malignancies and potential treatments for solid tumors.
- Understanding tyrosine kinase signaling is vital for developing novel cancer therapeutics and overcoming drug resistance.
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