Related Experiment Video
Updated: Apr 14, 2026

Live-3D-Cell Immunocytochemistry Assays of Pediatric Diffuse Midline Glioma
Published on: November 11, 2021
CD44 Acts as a Signaling Platform Controlling Tumor Progression and Metastasis
1Institute of Toxicology and Genetics, Karlsruhe Institute of Technology , Karlsruhe , Germany.
Abstract:
Members of the CD44 family of transmembrane glycoproteins emerge as major signal transduction control units. CD44 isoforms participate in several signaling pathways ranging from growth factor-induced signaling to Wnt-regulated pathways. The role of the CD44 family members in tumor progression and metastasis is most likely linked to the function of the various isoforms as signaling hubs. Increasing evidence suggests that these proteins are not solely cancer stem cell (CSC) markers but are directly involved in tumor and metastasis initiation. It is foreseeable that a link between the expression of CD44 isoforms in CSCs and their function as signaling regulators will be drawn in a near future.
Related Concept Videos
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
mTOR Signaling and Cancer Progression
Tumor Progression
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
Interactions Between Signaling Pathways
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...
Metastasis
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...

