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QMCF Technology is an episomal protein production system that uses genetically modified mammalian cells and specially designed plasmids.QMCF plasmids carry a combination of regulatory sequences from mouse polyomavirus (Py) DNA replication origin which in combination with Epstein-Barr virus (EBV) EBNA-1 protein binding site as nuclear retention elements ensure stable propagation of plasmids in ...
Immortalised cell lines have undergone similar mutations, allowing a cell type that would normally not be able to divide to be proliferated in vitro. The origins of some immortal cell lines – for example, HeLa human cells – are from naturally occurring cancers.
Human embryonic kidney 293 cells, also often referred to as HEK 293, HEK-293, 293 cells, are an immortalised cell line derived from HEK cells isolated from a female fetus in the 1970s. [ 1 ] [ 2 ] The HEK 293 cell line has been widely used in research for decades due to its reliable and fast growth and propensity for transfection .
In cellular biology, stable cells are cells that multiply only when needed. They spend most of the time in the quiescent G 0 phase of the cell cycle but can be stimulated to enter the cell cycle when needed. Examples include the liver, the proximal tubules of the kidney and endocrine glands.
Cell engineering is the purposeful process of adding, deleting, or modifying genetic sequences in living cells to achieve biological engineering goals such as altering cell production, changing cell growth and proliferation requirements, adding or removing cell functions, and many more.
A stem-cell line is distinctly different from an immortalized cell line, such as the HeLa line. While stem cells can propagate indefinitely in culture due to their inherent properties, immortalized cells would not normally divide indefinitely but have gained this ability due to mutation. Immortalized cell lines can be generated from cells ...
Regulators on Thursday gave the go-ahead for a multistate wind-energy power line to provide the equivalent of four nuclear power plants' worth of energy to Missouri consumers. At issue is the ...
CHO cells adhered to a surface, seen under phase-contrast microscopy. Chinese hamster ovary (CHO) cells are a family of immortalized cell lines [1] derived from epithelial cells of the ovary of the Chinese hamster, often used in biological and medical research and commercially in the production of recombinant therapeutic proteins.
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