HEK 293 cells HEK 293 cells 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 cell line originally derived from human embryonic kidney cells grown in tissue culture. 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. HEK 293 cells were generated in 1973 by transfection of cultures of normal human embryonic kidney cells with sheared adenovirus
How to Change the World to change. J.B. Schramm, the founder of College Summit, used his high-school and college experiences to create revolutionary college assistance for under-average teens. As a social entrepreneur in David Bornstein’s book, "How to Change the World", Schramm undertakes the challenge of reforming not only the way schools equip students for college, but also how students view their own strengths in lieu of what test scores might tell them. Charismatic and friendly, Schramm traveled through his years of primary and secondary school with the same group of buddies. When the time came for him to graduate from high-school, he had no