Is HEK293 Safe?
These organisms pose a moderate health hazard. Centers for Disease Control and Prevention (CDC) guidelines (pdf) require BSL-2 containment for work with HEK 293 cell lines.
Where did HEK293 cells come from?
The HEK293 cell line was initially produced in 1973 by a team led by Alex van der Eb in Leiden (Netherlands) from normal fetal human embryonic kidney cells.
What kind of cells are 293?
Human Embryonic Kidney (HEK) 293 is a cell line commonly used for BioPharma and Basic Medical research and therapeutic solutions. Generated in 1973, they are derived from human embryonic kidney cells and are popular, in part because of their reliable growth in culture and for their propensity for transfection.
Are HEK293 cells immortal?
Thus, HEK293 is not a model for normal human cells; these cells are immortalized already by known oncogene but not malignant yet.
Who HEK 293?
Human embryonic kidney 293 cells, also often referred to as HEK 293, HEK-293, 293 cells, or less precisely as HEK cells, are a specific immortalised cell line originally derived from human embryonic kidney cells grown in tissue culture taken from a female fetus.
What is the difference between HEK293 and HEK293T?
HEK293 – The HEK293 line is the original line established from a primary embryonic human kidney and transformed with sheared human adenovirus type 5 DNA. HEK293T – HEK293T is a HEK293 variant that expresses a temperature-sensitive allele of the SV40 T antigen.
What has HEK 293 been used for?
HEK 293 cells have been widely used in cell biology research for many years, because of their reliable growth and propensity for transfection. They are also used by the biotechnology industry to produce therapeutic proteins and viruses for gene therapy.
What are HEK 293 cells used for?
The human embryonic kidney (HEK) 293 cell line and its derivatives are used in experiments ranging from signal transduction and protein interaction studies over viral packaging to rapid small-scale protein expression and biopharmaceutical production.
Is HEK293 cancerous?
HEK293 is embryonic kidney immortalized cell line, which represents the epithelial morphology and possibility to form tumors in nude mice. HEK 293 cells are popular for their ease of growth and transfection, making them a common cell culture in cancer research.
Who HEK293?
Are CHO cells cancerous?
CHO cells can also be kept in suspension cultures; in contrast to cancer cells, they are genetically stable; they can be reproduced with expression vectors that contain the “gene of interest” (GOI); they can be transfected; and they remain stable during the process of selection, amplification, single-cell cloning and …
What is the T in HEK293T?
Basically HEK293 cells are the parental line for HEK293T. Here the letter “T” implies that it expresses the Large T antigen that is essential for replicating plasmids containing an SV40 origin of replication to high copy number in the transfected cell.
How is the E1A gene expressed in HEK293 cells?
The E1A adenovirus gene is expressed in these cells and participates in transactivation of some viral promoters, allowing these cells to produce very high levels of protein. As an expression system for recombinant proteins, HEK293 cell line has a wide variety of advantages:
What is the function of the 293A cell line?
Description. The 293A Cell Line is a subclone of the 293 Cell Line and has a relatively flat morphology. It facilitates the initial production, amplification and titering of replication-incompetent adenovirus. The cell line contains a stably integrated copy of the E1 gene that supplies the E1 proteins…
Where did the HEK293 cell line come from?
The HEK293 cell line was originally generated by the transformation of normal human embryonic kidney (HEK) cells following exposure to sheared fragments of human adenovirus type 5 (Ad5) DNA.
Is the HEK 293 cell line a health hazard?
These organisms pose a moderate health hazard. Centers for Disease Control and Prevention (CDC) guidelines (pdf) require BSL-2 containment for work with HEK 293 cell lines. Family Adenoviridae—Genus Mastadenovirus— Human adenovirus Group C—Human adenovirus 5 (HadV-5).