Growth of Human Lymphoid Cells (Raji Strain) in a Five-Liter Fermentor

The propagation of mammalian cells in a 20-liter stainless steel fermentor.

The propagation of mammalian cells in stainless steel fermentors of a type used in antibiotic fermentations represents a marked departure from the techniques employed in classical tissue culture studies. Since the pioneer work of Harrison (1907), in which he demonstrated the outgrowth of cells from nerve tissue maintained in vitro, many techniques for the in vitro culture of cells have been dev...

Cigarette smoke induces direct DNA damage in the human B-lymphoid cell line Raji.

Human lymphoid cells (Raji) were exposed to water-soluble compounds from cigarette smoke (CS) generated in a smoking machine. DNA damage, as detected by alkaline single-cell microelectrophoresis (COMET assay), was induced in a time- and concentration-dependent manner in the cells. Most of the rapidly induced DNA damage was attributable to direct-acting compounds since cytochrome P450-related me...

Differences in Growth Response of Human Hair Follicle Mesenchymal Stem Cells to Herbal Extracts and a Growth Factor

Background: One of the key questions in biochemistry is why cell becomes aged and what are the involved factors? Why cell growth is stopped after some divisions and cells become senescent? This occurs in a greater frame in the whole body and cells dye after a while. Androgenetic alopecia (AGA) is characterized by a loss or decrease in hair follicle size, which could be related to the loss of ha...

Human innate lymphoid cells.

Innate lymphoid cells (ILCs) are lymphoid cells that do not express rearranged receptors and have important effector and regulatory functions in innate immunity and tissue remodeling. ILCs are categorized into 3 groups based on their distinct patterns of cytokine production and the requirement of particular transcription factors for their development and function. Group 1 ILCs (ILC1s) produce i...

Avian lymphoid leukosis: Virus-like particles in kidney Cells