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Cell fusion is an important cellular process in which several uninucleate cells (cells with a single nucleus) combine to form a multinucleate cell, known as a syncytium. Cell fusion occurs during differentiation of myoblasts, osteoclasts and trophoblasts, during embryogenesis, and morphogenesis. [1] Cell fusion is a necessary event in the ...
Vesicle fusion. Vesicle fusion is the merging of a vesicle with other vesicles or a part of a cell membrane. In the latter case, it is the end stage of secretion from secretory vesicles, where their contents are expelled from the cell through exocytosis. Vesicles can also fuse with other target cell compartments, such as a lysosome.
Pap stain. Cytopathic effect (abbreviated CPE) refers to structural changes in host cells that are caused by viral invasion. The infecting virus causes lysis of the host cell or when the cell dies without lysis due to an inability to replicate. [ 1 ] If a virus causes these morphological changes in the host cell, it is said to be cytopathogenic ...
Cells thus appear to have at least two mechanisms to follow for membrane recycling. Under certain conditions, cells can switch from one mechanism to the other. Slow, conventional, full collapse fusion predominates the synaptic membrane when Ca 2+ levels are low, and the fast kiss-and-run mechanism is followed when Ca 2+ levels are high.
The genes are responsible for activating a hormone known as cytokinin that is important for a plant’s basic functions on a cellular level, including cell division and expansion, which in turn ...
In full fusion both leaflets as well as the internal contents mix. In membrane biology, fusion is the process by which two initially distinct lipid bilayers merge their hydrophobic cores, resulting in one interconnected structure. If this fusion proceeds completely through both leaflets of both bilayers, an aqueous bridge is formed and the ...
Exosome (vesicle) Exosomes, ranging in size from 30 to 150 nanometers, [1] are membrane-bound extracellular vesicles (EVs) that are produced in the endosomal compartment of most eukaryotic cells. [2][3][4] In multicellular organisms, exosomes and other EVs are found in biological fluids including saliva, blood, urine and cerebrospinal fluid. [5]
Rudolf Ludwig Carl Virchow (/ ˈvɪərkoʊ, ˈfɪərxoʊ / VEER-koh, FEER-khoh, [1] German: [ˈʁuːdɔlf ˈvɪʁço, - ˈfɪʁço]; [2][3] 13 October 1821 – 5 September 1902) was a German physician, anthropologist, pathologist, prehistorian, biologist, writer, editor, and politician. He is known as "the father of modern pathology " and as ...