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Studies to determine what role pluripotent stem cells play in adipogenesis, were examined in the immortalized human bone marrow-derived stromal cell line hMSC-Tert20. [220] Decreased expression of miR-155 , miR-221 , and miR-222 , have been found during the adipogenic programming of both immortalized and primary hMSCs, suggesting that they act ...
Top line: A transposon, defined by the mirrored sets of red double arrows (IR/DRs) is shown as contained in another DNA molecule (e.g., a plasmid shown by the blue lines). The transposon in this example harbors an expression cassette consisting of a promoter (blue oval) that can direct transcription of the gene or other DNA sequence labeled ...
Transient expression, more frequently referred to "transient gene expression", is the temporary expression of genes that are expressed for a short time after nucleic acid, most frequently plasmid DNA encoding an expression cassette, has been introduced into eukaryotic cells with a chemical delivery agent like calcium phosphate (CaPi) or polyethyleneimine (PEI). [1]
Enhancers control cell-type-specific gene expression programs, most often by looping through long distances to come in physical proximity with the promoters of their target genes. [66] Multiple enhancers, each often tens or hundred of thousands of nucleotides distant from their target genes, loop to their target gene promoters and coordinate ...
Lentiviral delivery of shRNA and the mechanism of RNA interference in mammalian cells.. A short hairpin RNA or small hairpin RNA (shRNA/Hairpin Vector) is an artificial RNA molecule with a tight hairpin turn that can be used to silence target gene expression via RNA interference (RNAi).
A cell line derived from the cabbage looper is of particular interest, as it has been developed to grow fast and without the expensive serum normally needed to boost cell growth. [ 27 ] [ 28 ] The shuttle vector is called bacmid, and gene expression is under the control of a strong promoter pPolh. [ 29 ]
SH-SY5Y is a human derived cell line used in scientific research. The original cell line, called SK-N-SH, from which it was subcloned was isolated from a bone marrow biopsy taken from a four-year-old female with neuroblastoma. SH-SY5Y cells are often used as in vitro models of neuronal function and
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.
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