Laminin Network
Laminin Network - Related Videos
00:55
Laminins are the Adhesive Proteins of Basal Lamina
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2023
Laminins are heterotrimeric proteins with high molecular mass found in the extracellular matrix. Each laminin molecule is composed of three chains, viz. alpha, beta, and gamma, coded by five, four, and three paralogous genes, respectively. Laminins are categories based on the compositions of the three chains. In humans, the five forms of alpha chains are LAMA 1, LAMA 2, LAMA 3, LAMA 4, and LAMA 5. The four forms of beta chains are LAMB 1, LAMB 2, LAMB 3, and LAMB 4. The three forms of gamma...
02:26
Protein Networks
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2020
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions. These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
02:18
Network Covalent Solids
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2020
Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds. To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
05:45
Recording Electrophysiological Activity of the Neuronal Network in a Neuron-Astrocyte Co-culture
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2025
This video demonstrates establishing a neuron-astrocyte co-culture for recording neuronal network activity. Upon establishing the co-culture of motor neurons and astrocytes on a multi-electrode array (MEA) plate, the synchronous rhythmic electrical activity of the neuronal network was recorded extracellularly using the MEA.
06:56
Generating a Fractal Microstructure of Laminin-111 to Signal to Cells
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Cited by 1 •
2020
We describe three methods to generate Ln1 polymers with fractal properties that signal to cells differently compared to unpolymerized Ln1.
FAQs
Laminin proteins first form heterotrimers from one alpha, one beta, and one gamma chain. Specialized domains then enable these assembled molecules to polymerize, creating an organized structural framework. This multichain arrangement is important because it gives the network the molecular architecture needed to organize basement membranes and coordinate interactions with cells and other extracellular matrix components.
Cell-surface receptors connect laminin molecules to the cells positioned within or beside a basement membrane. Through these connections, the surrounding matrix can influence cell adhesion, polarity, migration, differentiation, and signaling. Receptor-mediated attachment therefore converts the network from a structural scaffold into a source of information about the cell’s physical and biological environment.
Proteoglycans and other extracellular matrix components interact with the laminin network alongside cell-surface receptors. These associations help integrate laminin into the broader basement membrane rather than leaving it as an isolated molecular assembly. The resulting interactions support coordinated communication between cells and matrix, which is relevant to tissue organization, repair, and development.
Investigating this network can reveal how cells acquire organized positions, maintain polarity, migrate, or undergo differentiation in relation to their surrounding matrix. These questions connect molecular assembly with tissue-level behavior. The approach is especially relevant when examining basement membrane organization during tissue development, neural organization, muscle function, or wound repair.
Its biological relevance extends across epithelial and neural tissues, muscle, developing organs, and sites of wound repair. In each setting, the network provides a context for understanding how cells interact with structured basement membranes. Studying these relationships can help connect extracellular matrix organization with tissue architecture and the coordinated behavior of specialized cell populations.
Defective basement membrane structure or disrupted cell-matrix communication can interfere with the functions normally coordinated by laminin interactions. Consequences may involve abnormal tissue organization, altered cellular behavior, or impaired signaling. Examining these defects provides a way to relate molecular problems in the laminin network to disorders affecting tissue structure and cell-matrix communication.