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Related Concept Videos

Cell-matrix's Response to Mechanical Forces01:13

Cell-matrix's Response to Mechanical Forces

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...
Mechanical Protein Functions01:58

Mechanical Protein Functions

Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical forces and proteins that are subjected to mechanical forces. Proteins providing mechanical support to the structure of the cell, such as keratin, are subjected to mechanical force, whereas proteins involved in cell movement and transport of molecules across cell membranes, such as an ion pump, are examples of generating mechanical force. 
Actin Polymerization and Cell Motility01:13

Actin Polymerization and Cell Motility

Actin is a family of globular proteins that are highly abundant in eukaryotic cells. It makes up approximately 1-5% of total cell protein concentration. Actin monomers polymerize to form a complex network of polarized filaments, the actin cytoskeleton, that plays a crucial role in many cellular processes, including cell motility, division, endocytosis, and metastasis of cancer cells.
Actin cytoskeleton dynamics can produce pushing, pulling, and resistance forces that help the cell to migrate.
Cells Coordinate Growth and Proliferation02:36

Cells Coordinate Growth and Proliferation

Cell size is a significant factor impacting cellular design, function, and fitness. There exists some internal coordination by which cells double their masses before division, thus, achieving homeostasis. Coordination between cell growth and proliferation depends on the checkpoints in between cell cycle phases. Loss of coordination or failure in the checkpoint mechanism can drive the cell to uncontrolled growth and loss of cellular function. Like dividing cells that coordinate cellular growth,...
Cells Coordinate Growth and Proliferation02:36

Cells Coordinate Growth and Proliferation

Cell size is a significant factor impacting cellular design, function, and fitness. There exists some internal coordination by which cells double their masses before division, thus, achieving homeostasis. Coordination between cell growth and proliferation depends on the checkpoints in between cell cycle phases. Loss of coordination or failure in the checkpoint mechanism can drive the cell to uncontrolled growth and loss of cellular function. Like dividing cells that coordinate cellular growth,...
Cell Motility through Blebbing01:16

Cell Motility through Blebbing

Blebs are a type of membrane protrusion formed by the internal hydrostatic pressure of the cytoplasm. Blebs are observed in several cell types, including fibroblasts, immune cells, and single-celled organisms like the amoeba. The primary function of blebs is cell locomotion and apoptosis, but they are also found during necrosis and cell division. The life cycle of a bleb comprises an initiation phase followed by the expansion and retraction phases.
Blebbing Through the Matrix
In multicellular...

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Updated: Jun 19, 2026

Control of Cell Geometry through Infrared Laser Assisted Micropatterning
11:04

Control of Cell Geometry through Infrared Laser Assisted Micropatterning

Published on: July 10, 2021

Geometry and force control of cell function.

Donald O Freytes1, Leo Q Wan, Gordana Vunjak-Novakovic

  • 1Department of Biomedical Engineering, Columbia University, New York, New York 10032, USA.

Journal of Cellular Biochemistry
|October 2, 2009
PubMed
Summary
This summary is machine-generated.

Advanced tissue engineering uses biomimetic and biophysical approaches to create realistic cell culture systems. These novel methods mimic native tissue environments to better study cell development, disease, and regeneration.

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Last Updated: Jun 19, 2026

Control of Cell Geometry through Infrared Laser Assisted Micropatterning
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Published on: July 10, 2021

Improved Visualization and Quantitative Analysis of Drug Effects Using Micropatterned Cells
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Published on: December 2, 2010

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Published on: August 31, 2021

Area of Science:

  • Biomedical Engineering
  • Cell Biology
  • Regenerative Medicine

Background:

  • Tissue engineering aims to create functional human tissues and biologically accurate stem cell culture systems.
  • Current approaches increasingly integrate biological principles into novel engineering designs.
  • There's a shift from solely molecular factors to a combined molecular and physical factor approach.

Purpose of the Study:

  • To discuss advanced cell culture environments in tissue engineering.
  • To highlight the biomimetic paradigm (design principles from development).
  • To emphasize the biophysical regulation paradigm (geometry-force control of cell function).

Main Methods:

  • Designing three-dimensional (3D) scaffolds to mimic native cell environments.
  • Integrating molecular and physical factors in cell culture.
  • Developing methods for controlled spatial and temporal gradients of these factors.

Main Results:

  • Novel engineering designs recapitulate native cellular milieu with higher fidelity.
  • Advanced culture settings allow interrogation of cellular behavior in dynamic environments.
  • Biomimetic and biophysical paradigms provide design principles for advanced cell culture.

Conclusions:

  • Recent developments enable dynamic culture settings that mimic native tissue processes.
  • These advanced environments are crucial for studying tissue development, disease, and regeneration.
  • The integration of biomimetic and biophysical principles advances the field of tissue engineering.