Cell-free Ecm Sheets
Cell-free Ecm Sheets - Related Videos
01:25
Fibronectins Connect Cells with ECM
0 Views •
2023
Fibronectin is an adhesive glycoprotein present in the extracellular matrix of embryogenic and adult tissue. These molecules primarily aid in regulating cell motility and attachment. A fibronectin molecule is composed of two identical polypeptide chains attached to each other by a pair of disulfide bonds at the C-terminal. Both proteoglycans and collagen are attached to fibronectin proteins, which, in turn, are attached to integrin proteins. These integrin proteins interact with transmembrane...
16:33
ECM Protein Nanofibers and Nanostructures Engineered Using Surface-initiated Assembly
0 Views •
Cited by 17 •
2014
A method to obtain nanofibers and complex nanostructures from single or multiple extracellular matrix proteins is described. This method uses protein-surface interactions to create free-standing protein-based materials with tunable composition and architecture for use in a variety of tissue engineering and biotechnology applications.
02:44
Traction Cytometry Assay: A Method to Quantify Traction Force Exerted by Cancer Cells on ECM
0 Views •
2023
This video describes the traction force microscopy assay. The assay determines the cellular traction of human colon cancer cells on the extracellular matrix present on soft elastic hydrogel having embedded fluorescent beads. The resultant displacement of fluorescent beads is measured using an appropriate software.
04:16
ECM Suspension Preparation: A Technique to Obtain Homogenous Suspension from Tissue-derived Extracellular Matrix
0 Views •
2023
This video describes the preparation of a homogenized and digested extracellular matrix suspension from decellularized and lyophilized tissues. This technique helps in fabricating ECM-derived porous foams and microcarriers for use as substrates in advanced 3D cell culture models.
09:24
Tissue Engineering: Construction of a Multicellular 3D Scaffold for the Delivery of Layered Cell Sheets
0 Views •
Cited by 2 •
2014
For creation of highly organized structures of complex tissue, one must assemble multiple material and cell types into an integrated composite. This combinatorial design incorporates organ-specific layered cell sheets with two distinct biologically-derived materials containing a strong fibrous matrix base, and endothelial cells for enhancing new vessels formation.
FAQs
Decellularization removes cells and nucleic acids while retaining structural proteins, matrix-bound factors, and native microstructure. This selective preservation gives newly introduced cells access to both physical organization and biochemical signals from the source tissue. Consequently, the sheet can support experiments that examine how extracellular cues influence cell behavior in a tissue-like setting.
Preserved three-dimensional architecture provides more than a flat attachment surface. The native microstructure retains spatial organization that newly introduced cells encounter as they adhere, migrate, proliferate, or differentiate. In developmental biology, this makes the scaffold useful for examining how tissue organization and extracellular signals interact during morphogenesis.
Matrix-bound factors remain available for interaction with newly introduced cells after decellularization. Along with structural proteins, these retained signals can contribute to changes in adhesion, migration, proliferation, and differentiation. Studying these interactions helps researchers evaluate how extracellular components regulate cell behavior without the original tissue cells directly supplying those signals.
A basic workflow begins with tissue-derived extracellular matrix, followed by decellularization to remove cellular components and nucleic acids while preserving the matrix features of interest. Newly introduced cells are then placed in contact with the resulting sheet, where their adhesion, migration, proliferation, or differentiation can be examined within the retained tissue-like organization.
These sheets can support analyses of how cells attach, move, expand, and acquire differentiated states in relation to extracellular structure and biochemical cues. They also allow researchers to investigate how matrix-associated signals contribute to tissue organization and morphogenesis, providing observations that may be difficult to obtain from cells studied without a tissue-like matrix environment.
Their preserved architecture and extracellular cues provide a biomimetic setting for studying tissue organization during development. This relevance extends beyond basic cell behavior: the same platform can inform engineered tissue design, regenerative strategies, and models of developmental disorders by helping researchers examine how extracellular signals influence morphogenesis and cell fate.