Linking cell mechanical memory and cancer metastasis
View abstract on PubMed
Summary
This summary is machine-generated.Cancer cells survive metastasis by remembering mechanical stresses. This "mechanical memory" in the primary tumor microenvironment enhances their ability to spread and colonize distant organs, offering new drug targets.
Area Of Science
- Oncology
- Biophysics
- Cancer Biology
Background
- Metastasis is the primary cause of cancer mortality.
- Current anti-metastatic therapies are limited by an incomplete understanding of metastasis mechanisms.
- The role of mechanical forces in the tumor microenvironment is increasingly recognized.
Purpose Of The Study
- To propose that mechanical stresses in the primary tumor microenvironment select for and enhance the survival of metastatic tumor cells.
- To introduce the concept of "mechanical memory" as a mechanism for retaining these adaptations.
- To explore how matrix stiffness influences tumor cell behavior and promotes metastasis.
Main Methods
- This perspective synthesizes existing research on mechanobiology and cancer metastasis.
- It focuses on the biophysical adaptations of tumor cells under mechanical stress.
- Potential mechanisms of mechanical memory formation, including mechanotransduction and epigenetic changes, are discussed.
Main Results
- Mechanical stresses in the primary tumor microenvironment can select for tumor cells with enhanced metastatic potential.
- These biophysical adaptations are proposed to be retained via a "mechanical memory."
- High matrix stiffness, a common mechanical cue, alters tumor cell proliferation, survival, secretion, force generation, deformability, migration, and invasion.
Conclusions
- Mechanical memory, influenced by stress magnitude and duration, plays a crucial role in metastasis.
- Retained biophysical adaptations improve tumor cell survival and colonization in distant organs.
- Deciphering these mechanical memory mechanisms is essential for developing novel anti-metastatic drugs.
Related Concept Videos
Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
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...
In animal cells, the extracellular matrix allows cells within tissues to withstand external stresses and transmits signals from the outside of the cell to the inside. The extracellular matrix is extensive, and its composition varies between different types of tissues. For example, the reticular fibers and ground substance make up the ECM in loose connective tissue, while collagen and bone minerals make up the ECM of bone tissue.
Anchoring junctions mechanically attach a cell to the...
Cell migration is a process by which the cells move from one location to another, playing an essential role in embryological development, repair and regeneration, immune response, and metastasis. Cells migrate in response to chemical or mechanical signals generated by specific organs or tissues. The overall mechanism includes three steps - polarization, protrusion, and release. Polarization involves the formation of a distinct cell front and rear, which determines the direction of movement.
Cells can detect chemical cues in their environment and reorganize the cytoskeleton to migrate toward them or away from them. This directional migration, called chemotaxis, is essential during embryogenesis and development, immune response, tissue repair and regeneration, and reproduction. These chemical cues can either attract or repel the cell's movement. For example, axon development is determined by a combination of chemoattractants and chemorepellents that direct the growing axon...
Invadosome is a broad category of cell surface structures with proteolytic activity that degrades the extracellular matrix (ECM). Invadosomes are present in normal cell types, including macrophages, endothelial cells, and neurons, as well as tumor cells. Although the macrophage podosomes and tumor cell invadopodia are classified as invadosomes, they have different structures, molecular pathways, and functions. Podosomes are short structures that last for a few minutes. However,...
A migrating cell changes its shape during the cyclic events of attachment and detachment from the substratum and repositions the cell organelles correspondingly. These complex events are orchestrated by the dynamic cytoskeletal network comprising actin filaments, intermediate filaments, and microtubules. Cytoskeletal crosstalk — the direct and indirect communication between the different components — is crucial for this coordination. Direct communication involves various linker...

