Cell Cortex Dynamics
Cell Cortex Dynamics - Related Videos
14:14
Visualization of Cortex Organization and Dynamics in Microorganisms, using Total Internal Reflection Fluorescence Microscopy
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Cited by 12 •
2012
Total Internal Reflection Fluorescence (TIRF) microscopy is a powerful approach to observe structures close to the cell surface at high contrast and temporal resolution. We demonstrate how TIRF can be employed to study protein dynamics at the cortex of cell wall-enclosed bacterial and fungal cells.
01:56
Time-Lapse Imaging of Transfected Primary Mouse Cerebral Cortex Cells
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2025
Source: Landeira, B. S.,et al., Live Imaging of Primary Cerebral Cortex Cells Using a 2D Culture System. J. Vis. Exp. (2017)The video demonstrates the use of time-lapse imaging to track fluorescently labeled cortical progenitors, monitor their division and differentiation, and study lineage development in primary cerebral cortex...
04:44
Dual Extracellular Recordings in the Mouse Hippocampus and Prefrontal Cortex
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2024
This protocol outlines the use of a custom-designed recording device and electrodes to record local field potentials and investigate information flow in the mouse hippocampus and prefrontal cortex.
07:29
Real-time Analysis of Gut-brain Neural Communication: Cortex wide Calcium Dynamics in Response to Intestinal Glucose Stimulation
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Cited by 2 •
2023
Gut-brain communication, facilitated by the vagus nerve, is crucial for communication between the gastrointestinal endocrine system and the brain. However, whether intragastric glucose injection can change cortical activity is still not understood. Here, we offer a comprehensive protocol to observe changes in cortical activity after glucose injection into the duodenum.
07:16
Organotypic Cultures of Adult Human Cortex as an Ex vivo Model for Human Stem Cell Transplantation and Validation
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Cited by 1 •
2022
This protocol describes long-term organotypic cultures of adult human cortex combined with ex vivo intracortical transplantation of induced pluripotent stem cell-derived cortical progenitors, which present a novel methodology to further test stem cell-based therapies for human neurodegenerative disorders.
FAQs
Actin filament assembly and disassembly continually alter the cortex’s organization, while myosin motors generate contractile tension within that network. Their coordinated activity changes how forces are distributed beneath the plasma membrane. Because membrane attachment links cortical organization to the cell boundary, shifts in filament turnover or motor activity can influence cell shape, movement, and force production.
Membrane attachment provides a physical connection between the cortical cytoskeleton and the plasma membrane. This connection allows molecular changes in actin organization and myosin-generated tension to affect the cell surface rather than remaining isolated within the cytoskeletal layer. In bioengineering studies, that coupling helps explain how cells coordinate shape changes, adhesion, migration, and mechanosensing.
Signaling pathways coordinate where and when cortical remodeling occurs, rather than allowing actin and myosin activity to operate uniformly across the cell. Spatial control can localize force generation, while temporal control can link remodeling to changing cellular tasks. This regulation is relevant to processes such as cell division, migration, adhesion, and responses to mechanical cues.
Researchers combine quantitative imaging with mechanical measurements to relate actin remodeling, myosin activity, and membrane attachment to changes in cell shape or force. Imaging reveals where cortical organization changes, whereas mechanical measurements assess the resulting physical behavior. Together, these approaches help interpret how molecular dynamics contribute to migration, division, adhesion, and mechanosensing.
A study can pair quantitative imaging of cortical organization with measurements of cellular mechanics, focusing on changes in actin filaments, myosin-generated tension, membrane attachment, shape, or force. The specific combination depends on the biological question. Comparing molecular activity with whole-cell behavior provides a way to evaluate how engineered conditions influence cell function.
These dynamics are relevant when a design must account for how cells generate force, maintain shape, or respond to mechanical inputs. Findings can inform biomimetic materials and engineered tissues by linking cortical organization with adhesion, migration, division, and mechanosensing. The resulting context helps engineers consider cellular remodeling when designing systems intended to control cell shape or behavior.
Migration and division require coordinated changes in cell shape and force, making cortical remodeling a useful mechanistic focus. Quantitative imaging can track organization over space and time, while mechanical measurements indicate how tension and force change during these behaviors. Such data help connect cytoskeletal activity with whole-cell outcomes instead of treating migration or division as purely morphological events.