Related Experiment Videos
Evolving pathway-driven biomarkers in breast cancer.
Kazufumi Ohshiro1, Rakesh Kumar
1George Washington University Medical Center, Institute of Coregulator Biology, Department of Biochemistry and Molecular Biology, Washington, DC 20037, USA. bcmkxo@gwumc.edu
Expert Opinion on Investigational Drugs
|April 9, 2010
Summary
Identifying novel biomarkers is crucial for early breast cancer detection and effective therapy. Research highlights estrogen receptor signaling, coregulators, kinases, and cytoskeleton components as key areas for developing next-generation cancer biomarkers.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Early detection and appropriate therapy are critical for successful breast cancer treatment.
- Novel biologic endpoints, or biomarkers, are needed to guide therapeutic decisions.
Purpose of the Study:
- To review emerging biomarkers for breast cancer surveillance, prognosis, and therapy.
- To highlight the role of specific pathways and molecules in breast cancer progression and treatment.
Main Methods:
- Review of research from Dr. Kumar's lab focusing on specific molecular pathways.
- Analysis of estrogen receptor alpha (ER) signaling.
- Investigation of nuclear receptor coregulators, p21-activated kinase-1, and cytoskeleton components.
Main Results:
- Estrogen receptor alpha (ER) signaling is a key pathway in breast cancer.
- Nuclear receptor coregulators and cytoplasmic kinases play roles in ER-directed therapies.
- Cytoskeleton components are implicated in breast cancer cell progression.
Conclusions:
- Cytoplasmic kinases, coregulators, and cytoskeleton molecules show promise as next-generation breast cancer biomarkers.
- These biomarkers can potentially accelerate advancements in cancer surveillance, prognosis, and therapeutic decision-making.
Related Concept Videos
Tumor Progression
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Tumor Progression
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Interactions Between Signaling Pathways
Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
Diversity in Cell Signaling Responses
The physiological function of a cell and cellular communication are outcomes of a range of extrinsic signals, intracellular signaling pathways, and cellular responses. No two cell types express the same repertoire of signaling components. Receptors are highly selective for their cognate ligands, but once activated, they can alter multiple cellular processes such as DNA transcription, protein synthesis, and metabolic activity.
Graded and Abrupt Responses
Some signaling systems generate...
Graded and Abrupt Responses
Some signaling systems generate...
Adaptive Mechanisms in Cancer Cells
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Adaptive Mechanisms in Cancer Cells
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...