Related Experiment Video
Updated: Jan 29, 2026

11:34
Basic Caenorhabditis elegans Methods: Synchronization and Observation
Published on: June 10, 2012
49.4K
Invasion by Force: The C. elegans Anchor Cell Leads the Way
Savvas Nikolaou1, Laura M Machesky1
1CRUK Beatson Institute and Institute of Cancer Sciences, University of Glasgow, G61 1BD, Glasgow, UK.
Developmental Cell
|February 13, 2019
Summary
Cells invade by pushing through basement membranes using physical force, not enzymes. This study reveals a novel mechanism for cellular invasion in Caenorhabditis elegans development.
Area of Science:
- Cell biology
- Developmental biology
- Biophysics
Background:
- Basement membrane breaching is crucial for cell invasion during development and disease.
- The role of physical force versus enzymatic degradation in basement membrane penetration is debated.
Purpose of the Study:
- To investigate the mechanism by which the Caenorhabditis elegans anchor cell breaches the basement membrane during development.
- To determine if physical force or matrix metalloproteases are essential for this process.
Main Methods:
- Utilized live imaging and genetic manipulation in Caenorhabditis elegans.
- Observed anchor cell invasion dynamics and basement membrane interactions.
- Assessed the role of matrix metalloproteases in basement membrane penetration.
Main Results:
- The Caenorhabditis elegans anchor cell successfully breaches the basement membrane without relying on matrix metalloproteases.
- Physical force generated by the anchor cell is sufficient to overcome the basement membrane barrier.
- Demonstrated a novel mechanism of basement membrane invasion driven by cellular force.
Conclusions:
- Cellular physical force is a key mechanism for breaching basement membranes, independent of matrix metalloproteases.
- This finding provides new insights into developmental cell invasion and opens avenues for understanding pathological invasion processes.
More Related Videos
Related Concept Videos
The Anchoring-and-Adjustment Heuristic
7.8K
In order to make good decisions, we use our knowledge and our reasoning. Often, this knowledge and reasoning is sound and solid. However, sometimes, we are swayed by biases or by others manipulating a situation. For example, let’s say you and three friends wanted to rent a house and had a combined target budget of $1,600. The realtor shows you only very run-down houses for $1,600 and then shows you a very nice house for $2,000. Might you ask each person to pay more in rent to get the...
7.8K
Anchoring Junctions
5.0K
Anchoring junctions are multiprotein complexes that help cells connect to other cells and the extracellular matrix. Anchoring junctions are present on the lateral and basal surfaces of cells, providing strong and flexible connections. Focal adhesions are often formed due to cell interactions with the ECM substrata, which initiate signal transduction via kinase cascades and other mechanisms. Together, they provide stability and tissue integrity. There are three types of anchoring junctions:...
5.0K
Lipids as Anchors
7.3K
In the plasma membrane, the lipids forming the bilayer can also act as an anchor to tether proteins to the membrane. The three main types of lipid anchors found in eukaryotes are – prenyl groups, fatty acyl groups, and glycosylphosphatidylinositol or GPI groups. Prenyl and fatty acyl groups act as anchors on the cytosolic surface of the membrane, whereas GPI anchors proteins on the extracellular side.
The carboxy-terminal of most of the prenylated proteins, such as Ras proteins, contains...
The carboxy-terminal of most of the prenylated proteins, such as Ras proteins, contains...
7.3K
GPI Anchoring of Proteins in the ER Membrane
5.5K
GPI-anchoring is a post-translational, reversible protein modification that is ubiquitous in eukaryotes. Such proteins are primarily present on the exoplasmic leaflet of the plasma membrane.
GPI-anchor structure
A sequence of 11 enzymatic reactions results in the synthesis of the complete GPI anchor consisting of a hydrophobic and a hydrophilic portion. The hydrophobic portion comprises phosphatidylinositol, while the hydrophilic part comprises polar groups like phosphoethanolamine,...
GPI-anchor structure
A sequence of 11 enzymatic reactions results in the synthesis of the complete GPI anchor consisting of a hydrophobic and a hydrophilic portion. The hydrophobic portion comprises phosphatidylinositol, while the hydrophilic part comprises polar groups like phosphoethanolamine,...
5.5K
Tail-anchoring of Proteins in the ER Membrane
3.8K
Tail-anchored, or TA, proteins are estimated to make up to 3-5% of membrane proteins found in the eukaryotic cell. Such proteins have a single transmembrane domain located approximately 30 amino acid residues upstream from the C-terminal end. As a result, the signal recognition particle (SRP) cannot guide a TA protein to the ER membrane for cotranslational insertion. Hence, they are integrated into the ER membrane post-translationally using their C-terminal end as the anchor. TA proteins...
3.8K
Electromotive Force
30.1K
Electricity is generated by either electrons or ions flowing through a solution or a conducting medium. This flow of electrons or specifically electrical charge is defined as an electric current. When electrons move through a wire, they generate an electric current. It can be recalled that in a redox reaction, electrons are lost and gained. In the spontaneous redox reaction of zinc with copper, when zinc is immersed in a copper ion solution, a transfer of electrons from one substance to...
30.1K

