Ecm Remodeling
Ecm Remodeling - Related Videos
02:54
Nucleosome Remodeling
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2020
Nucleosomes are the basic units of chromatin compaction. Each nucleosome consists of the DNA bound tightly around a histone core, which makes the DNA inaccessible to DNA binding proteins such as DNA polymerase and RNA polymerase. Hence, the fundamental problem is to ensure access to DNA when appropriate, despite the compact and protective chromatin structure. Nucleosome remodeling complex Eukaryotic cells have specialized enzymes called ATP-dependent nucleosome remodeling enzymes. These enzymes...
16:33
ECM Protein Nanofibers and Nanostructures Engineered Using Surface-initiated Assembly
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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.
04:16
ECM Suspension Preparation: A Technique to Obtain Homogenous Suspension from Tissue-derived Extracellular Matrix
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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.
01:25
Fibronectins Connect Cells with ECM
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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...
06:26
PTM Based Tumor Microenvironment Monitoring: A Method for Tracking Changes in ECM Rigidity Using Tumor Spheroids
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2023
This protocol describes a technique for monitoring extracellular matrix rigidity changes by using particle-tracking microrheology (PTM). This is done by culturing 3D pancreatic tumor spheroids into ECM with embedded fluorescent probes for video particle-tracking and analysis.
FAQs
Balance among matrix production, cross-link modification, and proteolytic cleavage determines whether tissue architecture is preserved or altered. Fibroblasts contribute by synthesizing matrix proteins, whereas matrix metalloproteinases remove existing components. Because these activities act on different aspects of the network, their relative activity can shift tissue toward repair, persistent scarring, or structural deterioration. This balance is therefore a key mechanistic focus in medicine.
Integrin-mediated signaling converts changes in matrix composition and stiffness into cellular responses. As the surrounding network is altered, cells can detect those physical and biochemical changes and adjust their behavior, linking extracellular structure to intracellular signaling. This mechanism matters because remodeling is not merely a passive consequence of disease; altered matrix properties can actively influence how cells respond within injured, fibrotic, or tumor-associated tissues.
ECM remodeling can support repair when matrix turnover is coordinated, but excessive or poorly controlled remodeling can produce pathological tissue changes. In wound healing, alteration of the matrix contributes to restoration of structure, whereas fibrosis reflects excessive scarring. The same general processes therefore have different outcomes depending on their regulation, making timing, magnitude, and tissue context important when interpreting remodeling.
An investigation of ECM remodeling can compare matrix composition, cross-linking, protease activity, and stiffness across healthy and diseased tissue or during repair. These measurements address complementary features: composition shows what is present, cleavage reflects breakdown, cross-linking indicates modification, and stiffness captures a physical consequence. Together, the readouts help connect cellular activity with changes in tissue architecture.
In wound-healing studies, remodeling is examined as part of the tissue-repair response, while fibrosis research focuses on why alteration becomes excessive or persistent. The distinction helps researchers separate beneficial restoration from scarring that disrupts normal architecture. Therapeutic strategies can consequently aim either to support appropriate matrix reorganization or to limit the excessive changes associated with fibrotic disease.
In cancer and vascular medicine, matrix changes provide context for disease progression beyond the cells themselves. Remodeling can alter the tumor microenvironment, while vascular disease is also linked to changes in tissue structure. Measuring these changes may clarify disease mechanisms, and modifying them offers a way to investigate treatments that restore architecture or alter the local environment surrounding diseased cells.