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Updated: Jul 3, 2026

Assessment of Resistance to Tyrosine Kinase Inhibitors by an Interrogation of Signal Transduction Pathways by Antibody Arrays
Published on: September 19, 2018
[Signal transduction by protein tyrosine kinases and antitumor agents]
Yong-Jun Mao1, Hai-Hong Li, Jian-Feng Li
1Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
Abstract:
Intracellular signal transduction plays an important role in the process of cellular metabolism, segmentation, differentiation, biological behaviour and cell death. Overactive signal transduction relates to tumor development and progression. Signaling pathways operated by protein tyrosine kinases (PTKs) will be illuminated here briefly. The Ras/Raf/MAPK and PI-3K/Akt pathways through receptor protein tyrosine kinases (RTKs), the Src, Bcr-Abl and JAK/STAT pathways by non-receptor protein tyrosine kinases (nrPTKs) are shown separately. Antitumor agents targeting the key proteins involved in the above five signalling routes are also summarized in this review.
Insights
Signal transduction pathways are crucial for cell functions but overactivation drives tumor growth. This review covers key protein tyrosine kinase pathways and their targeted anticancer agents.
Area of Science:
- Cellular biology
- Molecular oncology
- Biochemistry
Context:
- Intracellular signal transduction regulates fundamental cellular processes including metabolism, differentiation, and cell death.
- Aberrant signal transduction is a hallmark of cancer, driving tumor development and progression.
- Protein tyrosine kinases (PTKs) are key regulators of these signaling pathways.
Purpose:
- To provide a concise overview of critical intracellular signaling pathways regulated by protein tyrosine kinases (PTKs).
- To highlight the role of these pathways in cancer.
- To summarize current and emerging antitumor agents targeting these key signaling routes.
Summary:
- This review focuses on five major signaling pathways: Ras/Raf/MAPK and PI-3K/Akt (mediated by receptor protein tyrosine kinases - RTKs), and Src, Bcr-Abl, and JAK/STAT (mediated by non-receptor protein tyrosine kinases - nrPTKs).
- The intricate mechanisms of these pathways are briefly explained.
- A summary of antitumor agents targeting pivotal proteins within these five pathways is presented.
Impact:
- Enhances understanding of the molecular basis of cancer development.
- Informs the development of targeted cancer therapies.
- Provides a valuable resource for researchers and clinicians in oncology.
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