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Related Concept Videos

Forces Acting on Chromosomes02:11

Forces Acting on Chromosomes

During mitosis, chromosome movements occur through the interplay of multiple piconewton level forces. In prometaphase, these forces help in chromosome assembly or congression at the equatorial plane, eventually leading to their alignment at the metaphase plate. The forces acting on the chromosomes are space and time-dependent; therefore, they vary with the position of the chromosomes as the cell progresses through mitosis. 
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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. 
Mechanism of Filopodia Formation01:39

Mechanism of Filopodia Formation

Filopodia are thin, actin-rich cellular protrusions that play an important role in many fundamental cellular functions. They vary in their occurrence, length, and positioning in different cell types, suggesting their diverse roles.
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Mechanism of Lamellipodia Formation01:31

Mechanism of Lamellipodia Formation

Cells migrating in response to external stimuli form lamellipodia, which are thin membrane protrusions supported by a mesh of linked, branched, or unbranched actin filaments. These actin filaments interact with myosin motor proteins, creating the dynamic actomyosin complex within the cytoskeleton. Contractility, or the ability to generate contractile stress, is inherent to the actomyosin complex. It helps cells detect the stiffness of the surrounding ECM and exert contractile force for...
Spindle Assembly02:50

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Spindle assembly occurs through three, often coexisting, pathways – the centrosome-mediated pathway, the chromatin-mediated pathway, and the microtubule-mediated pathway – collectively contributing to form a robust spindle apparatus.
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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. 
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Updated: Jun 2, 2026

Protrusion Force Microscopy: A Method to Quantify Forces Developed by Cell Protrusions
06:37

Protrusion Force Microscopy: A Method to Quantify Forces Developed by Cell Protrusions

Published on: June 16, 2018

Podosomes and Mechanical Force.

Malgorzata Kloc1,2, Souhail A Thabet3, Samruddhi Ranmale4,3

  • 1The Houston Methodist Research Institute, Transplant Immunology, Houston, TX, USA. mkloc@houstonmethodist.org.

Results and Problems in Cell Differentiation
|June 1, 2026
PubMed
Summary
This summary is machine-generated.

Podosomes are dynamic cell structures involved in sensing and mechanical force transmission. This review details their structure and diverse roles in various cell types beyond immune cells.

Keywords:
Actin cytoskeletonInvadopodiumMechanical forceMechanotransductionPodosome

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Related Experiment Videos

Last Updated: Jun 2, 2026

Protrusion Force Microscopy: A Method to Quantify Forces Developed by Cell Protrusions
06:37

Protrusion Force Microscopy: A Method to Quantify Forces Developed by Cell Protrusions

Published on: June 16, 2018

Directly Measuring Forces Within Reconstituted Active Microtubule Bundles
07:47

Directly Measuring Forces Within Reconstituted Active Microtubule Bundles

Published on: May 10, 2022

Reconstitution of Basic Mitotic Spindles in Spherical Emulsion Droplets
10:52

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Published on: August 13, 2016

Area of Science:

  • Cell Biology
  • Biophysics

Background:

  • Podosomes are dynamic cell adhesion structures.
  • They are involved in cell-environment interactions and mechanotransduction.
  • Historically associated with immune cells, they are now known to exist in many cell types.

Purpose of the Study:

  • To review the structure and function of podosomes.
  • To highlight their role in mechanotransduction.
  • To discuss their presence in diverse cell types.

Main Methods:

  • Literature review of podosome research.
  • Analysis of ultrastructure and function.
  • Synthesis of findings across different cell types.

Main Results:

  • Podosomes have a complex ultrastructure enabling environmental interactions.
  • They play roles in mechanotransduction and other cellular processes.
  • Podosomes are found in various cells including osteoclasts, endothelial, muscle, neural, and cancer cells.

Conclusions:

  • Podosomes are versatile adhesion structures with critical roles.
  • Their functions extend beyond immune cell interactions.
  • Understanding podosome structure and function is key to various biological processes.