Related Experiment Video
Updated: Aug 14, 2026

Analyzing Tumor and Tissue Distribution of Target Antigen Specific Therapeutic Antibody
Published on: May 16, 2020
Molecular targeting of growth factor receptor-bound 2 (Grb2) as an anti-cancer strategy
Pathirage G Dharmawardana1, Benedetta Peruzzi, Alessio Giubellino
1Urologic Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892-1107, USA.
Abstract:
Growth factor receptor-bound 2 (Grb2) is a ubiquitously expressed adapter protein that provides a critical link between cell surface growth factor receptors and the Ras signaling pathway. As such, it has been implicated in the oncogenesis of several important human malignancies. In addition to this function, research over the last decade has revealed other fundamental roles for Grb2 in cell motility and angiogenesis--processes that also contribute to tumor growth, invasiveness and metastasis. This functional profile makes Grb2 a high priority target for anti-cancer drug development. Knowledge of Grb2 protein structure, its component Src homology domains and their respective structure-function relationships has facilitated the rapid development of sophisticated drug candidates that can penetrate cells, bind Grb2 with high affinity and potently antagonize Grb2 signaling. These novel compounds offer considerable promise in our growing arsenal of rationally designed anti-cancer therapeutics.
Insights
Growth factor receptor-bound 2 (Grb2) is a key adapter protein in cancer signaling. Targeting Grb2 offers a promising strategy for developing novel anti-cancer therapeutics by disrupting tumor growth and metastasis.
Area of Science:
- Molecular Biology
- Oncology
- Biochemistry
Background:
- Growth factor receptor-bound 2 (Grb2) is an adapter protein crucial for linking cell surface receptors to the Ras signaling pathway.
- Grb2 plays a significant role in oncogenesis, cell motility, and angiogenesis, processes vital for tumor progression.
- Its involvement in multiple cancer-related pathways makes Grb2 a high-priority target for anti-cancer drug development.
Purpose of the Study:
- To highlight the multifaceted roles of Grb2 in cancer.
- To underscore the therapeutic potential of targeting Grb2.
- To discuss the development of novel drug candidates targeting Grb2.
Main Methods:
- Review of existing literature on Grb2 function and structure-function relationships.
- Analysis of Grb2's role in oncogenesis, cell motility, and angiogenesis.
- Evaluation of drug development strategies targeting Grb2 signaling.
Main Results:
- Grb2's established role in Ras signaling and its implication in oncogenesis.
- Emerging evidence detailing Grb2's contribution to cell motility and angiogenesis.
- Successful development of drug candidates with high affinity for Grb2.
Conclusions:
- Grb2 is a critical mediator in cancer development and progression.
- Targeting Grb2 presents a viable therapeutic strategy for various human malignancies.
- Novel Grb2-targeting compounds show promise as rationally designed anti-cancer therapeutics.
Related Concept Videos
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
Mitogens and the Cell Cycle
Transducer Mechanism: Enzyme-Linked Receptors
Major types that are helpful drug targets include:
Receptor Downregulation in MVBs
The EGFR can initiate signaling pathways that lead to cell proliferation, migration, and differentiation. Overexpression of EGFR stimulates cells to proliferate. Excessive EGFR activation may...

