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Updated: Mar 14, 2026

Assaying Protein Kinase Activity with Radiolabeled ATP
Published on: May 26, 2017
Maybe we don't know JAK?
Luis J Schwarz1, Justin M Balko2
1Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt University , Nashville, TN, USA.
Abstract:
The cornerstone for precision medicine is the development of robust biomarkers that reflect molecular phenotypes and therapeutic vulnerabilities in disease. We recently described Janus kinase-2 (JAK2)-specific inhibition as a therapeutic opportunity in triple negative breast cancers with 9p24 amplification. Here, we comment on this work and discuss the challenges of targeting this amplicon.
Insights
Precision medicine relies on biomarkers. Janus kinase-2 (JAK2) inhibition shows promise for triple-negative breast cancers with 9p24 amplification, though targeting this amplicon presents challenges.
Area of Science:
- Oncology
- Genetics
- Pharmacology
Background:
- Biomarkers are crucial for precision medicine, identifying molecular phenotypes and therapeutic vulnerabilities.
- Triple-negative breast cancer (TNBC) is an aggressive subtype with limited targeted therapies.
- 9p24 amplification is a genetic alteration observed in some TNBCs.
Purpose of the Study:
- To comment on the therapeutic potential of Janus kinase-2 (JAK2)-specific inhibition in TNBC.
- To discuss the challenges associated with targeting the 9p24 amplicon in cancer treatment.
Main Methods:
- Review and commentary on existing research.
- Analysis of genetic amplification patterns (9p24).
- Discussion of JAK2-specific inhibition strategies.
Main Results:
- Janus kinase-2 (JAK2)-specific inhibition is identified as a potential therapeutic strategy for TNBC with 9p24 amplification.
- The 9p24 amplicon presents specific challenges for targeted therapeutic development.
Conclusions:
- Targeting JAK2 offers a precision medicine approach for a subset of TNBC patients.
- Overcoming challenges in targeting the 9p24 amplicon is essential for clinical translation.
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