Disclosed herein are methods for reprogramming a somatic cell into a pluripotent stem cell by contacting the somatic cell with one or more antifolate agents, with or without methionine, in vitro for a period of time sufficient to reprogramming the somatic cell and selecting and growing the cells that express one or more stem cell markers. Also disclosed are induced pluripotent stem cells obtained from somatic cells.

Provided are stem cells-induced Serotoli-like cells, methods of preparing the same, and uses thereof. Sertoli-like cells according to one embodiment can be differentiated from embryonic stem cells with excellent proliferative capacity, and thus, can be obtained in large quantities. Also, since the Sertoli-like cells secrete immunosuppressive substances and form immune privilege and induce anti-inflammatory functions, they can be used for development of the cell therapeutic agent.

Provided are stem cells-induced Serotoli-like cells, methods of preparing the same, and uses thereof. Sertoli-like cells according to one embodiment can be differentiated from embryonic stem cells with excellent proliferative capacity, and thus, can be obtained in large quantities. Also, since the Sertoli-like cells secrete immunosuppressive substances and form immune privilege and induce anti-inflammatory functions, they can be used for development of the cell therapeutic agent.

The invention provides a novel method for controlling and/or treating the growth of biofilms by promoting growth of the periphery cells and/or increasing nutrient consumption by the periphery cells so that the growth of peripheral cells is not only independent from nutrients (e.g., ammonium) provided by the interior cells of the biofilms, but also causes interior cells starved to death. The accessible peripheral cells are then treated and/or eliminated by biofilm control substance of antibiotics or toxic chemicals. Therefore, the invention method controls and eliminates both peripheral and interior cells within biofilms. The invention method can be used in various industries, such as clinical and dental medicine and medical equipment, food and oil industry, and water supply systems.

Disclosed herein are methods for reprogramming a somatic cell into a pluripotent stem cell by contacting the somatic cell with one or more antifolate agents, with or without methionine, in vitro for a period of time sufficient to reprogramming the somatic cell and selecting and growing the cells that express one or more stem cell markers. Also disclosed are induced pluripotent stem cells obtained from somatic cells.