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Updated: May 13, 2026

Identification of Mediators of T-cell Receptor Signaling via the Screening of Chemical Inhibitor Libraries
Published on: January 22, 2019
Protein kinase inhibitors against malignant lymphoma
Osmond J D'Cruz1, Fatih M Uckun
1Children's Hospital Los Angeles, Children's Center for Cancer and Blood Diseases, Los Angeles, CA 90027, USA.
Introduction:
Tyrosine kinases (TKs) are intimately involved in multiple signal transduction pathways regulating survival, activation, proliferation and differentiation of lymphoid cells. Deregulation or overexpression of specific oncogenic TKs is implicated in maintaining the malignant phenotype in B-lineage lymphoid malignancies. Several novel targeted TK inhibitors (TKIs) have recently emerged as active in the treatment of relapsed or refractory B-cell lymphomas that inhibit critical signaling pathways, promote apoptotic mechanisms or modulate the tumor microenvironment.
Areas Covered:
In this review, the authors summarize the clinical outcomes of newer TKIs in various B-cell lymphomas from published and ongoing clinical studies and abstracts from major cancer and hematology conferences.
Expert Opinion:
Multiple clinical trials have demonstrated that robust antitumor activity can be obtained with TKIs directed toward specific oncogenic TKs that are genetically deregulated in various subtypes of B-cell lymphomas. Clinical success of targeting TKIs is dependent upon on identifying reliable molecular and clinical markers associated with select cohorts of patients. Further understanding of the signaling pathways should stimulate the identification of novel molecular targets and expand the development of new therapeutic options and individualized therapies.
Insights
Novel tyrosine kinase inhibitors (TKIs) show significant antitumor activity in B-cell lymphomas. Identifying patient-specific markers is key for successful targeted therapy and personalized treatment strategies.
Area of Science:
- Oncology
- Hematology
- Molecular Biology
Background:
- Tyrosine kinases (TKs) regulate lymphoid cell functions; their deregulation drives B-cell malignancies.
- Targeted TK inhibitors (TKIs) are emerging as treatments for relapsed/refractory B-cell lymphomas.
- TKIs target oncogenic TKs, affecting signaling pathways, apoptosis, and the tumor microenvironment.
Purpose of the Study:
- To review the clinical outcomes of novel TKIs in B-cell lymphomas.
- To assess the efficacy of TKIs in relapsed or refractory disease.
- To highlight the importance of molecular markers for TKI therapy.
Main Methods:
- Review of published clinical studies and conference abstracts.
- Analysis of clinical outcomes data for various TKIs.
- Focus on TKIs targeting specific oncogenic tyrosine kinases.
Main Results:
- TKIs demonstrate robust antitumor activity in B-cell lymphomas.
- Clinical success is linked to specific oncogenic TK deregulation.
- Identifying molecular and clinical markers is crucial for patient selection.
Conclusions:
- Targeting deregulated TKs with TKIs yields significant antitumor responses in B-cell lymphomas.
- Personalized therapy requires reliable markers to identify responsive patient cohorts.
- Further research into signaling pathways will uncover new targets and therapeutic options.
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