Membrane Blebbing Release
Membrane Blebbing Release - Related Videos
01:16
Cell Motility through Blebbing
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2023
Blebs are a type of membrane protrusion formed by the internal hydrostatic pressure of the cytoplasm. Blebs are observed in several cell types, including fibroblasts, immune cells, and single-celled organisms like the amoeba. The primary function of blebs is cell locomotion and apoptosis, but they are also found during necrosis and cell division. The life cycle of a bleb comprises an initiation phase followed by the expansion and retraction phases. Blebbing Through the Matrix In multicellular...
03:02
Nictitating Membrane Removal: A Surgical Procedure to Remove Nictitating Membrane from Rabbit Eye
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2025
In this video, we demonstrate a surgical procedure to remove nictitating membrane from rabbit’s eye.
06:23
Detection of Nuclear Blebbing and DNA Leakage in Mammalian Cells by Immunofluorescence
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2025
Laminopathy disorders often lead to changes in the nuclear envelope, which may cause nuclear blebbing and leakage. This study presents an immunofluorescence method to visualize the nuclear lamina along with double-stranded DNA (dsDNA), providing a means to assess nuclear structure and integrity in mammalian cells.
22:00
Crystallizing Membrane Proteins for Structure Determination using Lipidic Mesophases
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Cited by 48 •
2010
Herein is described the procedure implemented in the Caffrey Membrane Structural and Functional Biology Group to set up manually crystallization trials of membrane proteins in lipidic mesophases.
01:28
Energy-releasing Steps of Glycolysis
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2019
Glycolysis is divided into two phases based on whether energy is utilized or released. While the first phase consumes ATP, the second phase produces energy in the form of ATP and NADH. The energy is released over a sequence of reactions that turns G3P into pyruvate. The energy-releasing phase—steps 6-10 of glycolysis—occurs twice, once for each of the two 3-carbon sugars produced during steps 1-5 of the first phase. The first energy-releasing step—the 6th step of glycolysis —consists of two...
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The initiating mechanical change is a localized weakening of attachment between the plasma membrane and its underlying cortex. Actomyosin contractility then raises intracellular pressure, pushing the less-constrained membrane outward. This sequence matters because it links a local change in membrane support to the formation of a detachable compartment, rather than producing an outward deformation without subsequent release.
Scission converts a membrane protrusion into a separate membrane-bound particle. Before this separation, the outward bulge remains connected to the cell; after scission, the released vesicle can carry cellular or microbial material as an independent unit. Examining this transition helps distinguish membrane deformation from completed particle release and clarifies when cargo becomes available for intercellular effects.
Released particles may contain lipids, proteins, nucleic acids, or microbial components. Their contents determine which signals or materials can be transferred between cells and help explain why the same physical release process may have different biological consequences. In infection and immunity studies, identifying these cargo categories can connect particle formation with immune-cell activation and inflammatory signaling.
The particles can transport microbial components together with cellular membrane material, creating a route through which pathogen-associated information reaches other cells. This may modify immune-cell activation or inflammatory signaling, depending on the transferred contents. Consequently, membrane blebbing release provides a mechanistic link between membrane dynamics and broader processes such as pathogen dissemination or harmful immune responses.
A useful investigation follows the process from weakened membrane–cortex attachment through actomyosin-driven outward movement and final scission. It can then characterize the released particles by their possible lipids, proteins, nucleic acids, or microbial components and relate those contents to immune-cell activation or inflammatory signaling. This sequence connects cellular mechanics with functional host–pathogen outcomes.
Research on this process can address pathogen dissemination, apoptotic-cell clearance, disease biomarkers, and potential targets for limiting harmful immune responses. The applications differ in emphasis: some focus on how particles spread biological material, while others examine how released contents reveal disease-related changes or influence inflammatory pathways. Together, these uses extend the topic from cell mechanics to translational immunology and infection research.