Mechanotransduction Pathways
Mechanotransduction Pathways - Related Videos
01:27
C4 Pathway and CAM
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2019
Most plants use the C3 pathway for carbon fixation. However, some plants, such as sugar cane, corn, and cacti that grow in hot conditions, use alternative pathways to fix carbon and conserve energy loss due to photorespiration. Photorespiration is the process that occurs when the oxygen concentration is high. Under such conditions, the rubisco enzyme in the Calvin cycle binds O2 instead of CO2, which halts photosynthesis and consumes energy. C4 Pathway The C4 pathway is used by plants such as...
11:46
Axon Stretch Growth: The Mechanotransduction of Neuronal Growth
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Cited by 30 •
2011
A unique tissue engineering method was developed to elongate numerous nerve fibers in culture by recapitulating axon stretch growth; a form of nervous system growth whereby nerves elongate in conjunction with growth of the enlarging body.
09:35
An Experimental System to Study Mechanotransduction in Fetal Lung Cells
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Cited by 7 •
2012
Mechanical forces play a key role in lung development and lung injury. Here, we describe a method to isolate rodent fetal lung type II epithelial cells and fibroblasts and to expose them to mechanical stimulation using an in vitro system.
05:54
A Mouse Model of Mechanotransduction-driven, Human-like Hypertrophic Scarring
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Cited by 3 •
2024
This protocol will explain how to establish a hypertrophic scarring murine model that increases mechanotransduction signaling to simulate human-like scarring. This method involves increasing mechanical tension across a healing incision in a mouse and using a specialized device to create reproducible, excessive scar tissue for detailed histological and bioinformatic analyses.
08:28
A Lab-On-A-Chip Platform for Stimulating Osteocyte Mechanotransduction and Analyzing Functional Outcomes of Bone Remodeling
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Cited by 9 •
2020
Here, we present protocols for analyzing bone remodeling within a lab-on-a-chip platform. A 3D printed mechanical loading device can be paired with the platform to induce osteocyte mechanostransduction by deforming the cellular matrix. The platform can also be used to quantify bone remodeling functional outcomes from osteoclasts and osteoblasts (resorption/formation).
FAQs
These forces act through partly distinct cellular structures and conditions. Stretching or compression can alter cytoskeletal organization and cell-adhesion complexes, while fluid shear and tension can affect membrane tension and mechanically gated ion channels. The resulting biochemical signals influence intracellular pathways and gene expression, allowing cells to adjust proliferation, differentiation, migration, or tissue behavior to local mechanical conditions.
The cytoskeleton and cell-adhesion complexes provide important sites where physical forces can influence signaling. Changes in cytoskeletal organization or adhesion can modify how cells respond to tension, compression, or stretching, linking tissue-level forces to intracellular biochemical activity. During development, this connection helps coordinate cell movements and tissue shaping rather than treating mechanical input as an isolated stimulus.
Mechanically gated ion channels respond when physical conditions alter the cell membrane, particularly membrane tension. Their activity can initiate intracellular signaling that changes cellular behavior and gene expression. In developing tissues, this mechanism provides a route by which external or cell-generated forces become biochemical information, complementing force-sensitive changes in adhesion and cytoskeletal organization.
Mechanical signals do not act separately from developmental gene regulation. Forces can initiate intracellular signaling and changes in gene expression, while existing genetic programs help determine how cells interpret those signals. This interaction allows similar mechanical inputs to contribute to distinct outcomes, including proliferation, differentiation, migration, and coordinated changes in tissue form during embryonic development.
A useful investigation can relate a defined mechanical condition, such as stretching, compression, fluid shear, or cell-generated tension, to changes in cytoskeletal organization, adhesion complexes, membrane tension, or mechanically gated ion channels. It can then connect those cellular changes with intracellular signaling, gene expression, and developmental outcomes such as migration or tissue shaping.
Morphogenesis depends on coordinated changes in cell position, behavior, and tissue structure. Mechanotransduction pathways help explain how physical forces guide these changes alongside genetic instructions. By linking mechanical cues with proliferation, differentiation, migration, and tissue shaping, they provide a framework for studying how embryonic tissues acquire their organization and why altered force responses may contribute to congenital disorders.
Research on mechanotransduction pathways can inform studies of congenital disorders, tissue engineering, and regenerative medicine. In these settings, understanding how cells respond to physical cues may help explain abnormal development or guide the design and restoration of tissues. The same framework connects mechanical conditions with cellular signaling, gene expression, and functional changes in developing or engineered tissue.