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A431 cells were established from an epidermoid carcinoma in the skin of an 85- year-old female patient. Epidermal growth factor (EGF) stimulation of A431 cells induces rapid tyrosine phosphorylation of intracellular signaling proteins which control cellular processes such as growth, proliferation and apoptosis.
Sertoli cells function to nourish the developing sperm cells. They secrete androgen-binding protein , a binding protein which increases the concentration of testosterone. There are two types: convoluted and straight, convoluted toward the lateral side, and straight as the tubule comes medially to form ducts that will exit the testis.
This is an accepted version of this page This is the latest accepted revision, reviewed on 5 January 2025. Cell division producing haploid gametes For the figure of speech, see Meiosis (figure of speech). For the process whereby cell nuclei divide to produce two copies of themselves, see Mitosis. For excessive constriction of the pupils, see Miosis. For the parasitic infestation, see Myiasis ...
The Müller glia cell is the only retinal glial cell that shares a common cell lineage with retinal neurons. A subset of Müller glia has been shown to originate from neural crest cells. [ 3 ] They are shown to be critical to the development of the retina in mice, serving as promoters of retinal growth and histogenesis , via a nonspecific ...
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Accused rapist rapper Sean “Diddy” Combs hired men to patrol his parties and recruit young women for “intimate” time with him — claiming it was “an honor” to be asked, a targeted ...
In eukaryotes, there are two distinct types of cell division: a vegetative division , producing daughter cells genetically identical to the parent cell, and a cell division that produces haploid gametes for sexual reproduction , reducing the number of chromosomes from two of each type in the diploid parent cell to one of each type in the ...
A type of bacteria dubbed “Conan the Bacterium” can withstand radiation thousands of times stronger than what can kill a human. Now, scientists have figured out why.