Map Destabilizers
Map Destabilizers - Related Videos
01:45
Destabilization of Microtubules
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2023
The destabilization of microtubules can occur during different stages of the microtubule lifecycle, such as nucleation or elongation. It can take place at either end of the microtubule or in the microtubule lattices as a whole. The lifespan of individual microtubules within a cell varies according to the cell type and stage of the cell cycle. During interphase, the lifespan of the microtubule is about 30 minutes, while during cell division, it is about 15 minutes. In axonal microtubules of...
01:10
Drugs that Destabilize Microtubules
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2023
Microtubules are dynamic structures and can be regulated by microtubule targeting agents (MTAs). Microtubule destabilizing drugs are a class of MTAs that destabilize and prevent microtubules' polymerization. Both natural and synthetic chemicals can be found under this class of drugs. Vincristine and vinblastine, two vinca alkaloids, and colchicine were among the first to be discovered. These drugs can affect cells in various ways, either by inducing a change in cell morphology, preventing...
08:05
A Prediction Error-driven Retrieval Procedure for Destabilizing and Rewriting Maladaptive Reward Memories in Hazardous Drinkers
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Cited by 24 •
2018
This manuscript describes a memory retrieval procedure for destabilizing robust reward memories and rewriting them with counterconditioning prior to their reconsolidation.
07:33
Fluorescent Leakage Assay to Investigate Membrane Destabilization by Cell-Penetrating Peptide
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Cited by 4 •
2020
The fluorescence leakage assay is a simple method that enables the investigation of peptide/membrane interactions in order to understand their involvement in several biological processes and especially the ability of cell-penetrating peptides to disturb phospholipids bilayers during a direct cellular translocation process.
07:06
Destabilization of the Medial Meniscus and Cartilage Scratch Murine Model of Accelerated Osteoarthritis
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Cited by 2 •
2022
The present protocol describes the controlled microblade scratches on the surface of the articular cartilage after destabilizing the mouse knee by cutting the medial miniscotibial ligament. This animal model presents an accelerated form of osteoarthritis (OA) suitable for studying osteophyte formation, osteosclerosis, and early-stage pain.
FAQs
Their effects depend on where they interact with the microtubule. By binding tubulin or microtubule ends, these proteins can promote catastrophe, accelerate depolymerization, or block the addition of tubulin subunits to a growing polymer. These distinct actions give cells several ways to reduce microtubule persistence and redirect cytoskeletal organization when cellular architecture must change.
Catastrophe shifts a microtubule from growth toward shrinkage, while accelerated depolymerization removes existing polymer more rapidly. Together, these processes allow cells to dismantle microtubule structures instead of merely stopping further growth. That turnover is important when the cytoskeleton must be reorganized for division, migration, intracellular transport, or changes in cell shape.
Cells balance opposing MAP activities rather than relying on destabilization alone. Stabilizing MAPs preserve selected microtubules, whereas Map Destabilizers promote their remodeling or removal. This spatial and temporal balance helps determine which microtubule arrays persist and which are replaced, allowing cytoskeletal organization to change without losing overall control of cell structure.
Motor proteins and destabilizing MAPs contribute different types of control. Destabilizers regulate the persistence and arrangement of microtubule polymers, while motors operate with the microtubule network to support intracellular transport and positioning. Considering both activities helps explain how cells coordinate cytoskeletal remodeling with the movement or placement of organelles and other cellular components.
Researchers can examine how changing destabilizing activity affects spindle formation and chromosome segregation. Because these proteins influence microtubule growth and removal, they provide a way to study how spindle structures are assembled, remodeled, and maintained during division. Observed changes can connect microtubule dynamics with the accuracy and organization of division-related processes.
Cell migration, intracellular transport, organelle positioning, and changes in cell shape provide useful biological contexts. Each depends on controlled reorganization of the cytoskeleton, so altered destabilizer activity can reveal how microtubule turnover contributes to these behaviors. Comparing such outcomes also shows that the same regulatory principle can support different cell functions.
Their importance extends beyond basic cytoskeletal biology because disrupted microtubule regulation can affect processes required for development and cellular function. Studying these proteins helps researchers connect changes in microtubule organization with developmental disorders and diseases associated with cytoskeletal dysfunction. This context makes destabilizer activity relevant both to mechanism-focused studies and broader disease research.