The cells are mortal or immortal, divide and disappear with reincarnation or after metabolic or apoptotic deathSIVajoenesyncytium formationMathé G.doi:10.1016/S0753-3322(98)80001-2G MathéElsevier BVBiomedicine & Pharmacotherapy
Metastasis is the main cause of carcinoma-related death, yet we know little about how it initiates due to our inability to visualize stochastic invasion events. Classical models suggest that cells accumulate mutations that first drive formation of a primary mass, and then downregulate epithelia-speci...
14. To grow and divide, cells synthesize new peptidoglycan precursors in the cytoplasm, which are then transported to the periplasm and inserted into the expanding cell wall14. In rod-shaped bacteria such asE. coli, cell elongation and division are regulated by distinct machineries...
The subependymal zone of the lateral ventricles is considered the site of stem cells localization; however, there are indications of stem cells origination from ependyma while the subependymal zone serves as a collector of the progenitor cells where these cells divide. The problem of the ...
Cells divide until a final cell density is attained which is proportional to the calcium concentration in the medium and cells reversibly arrest in G1. Cells which arrested in G1 in medium containing less than or equal to 26 micrometer Ca++ in the presence of excess serum can be stimulated...
After the virus invades the cell, it will release its RNA into the cell and co-opt some of its components to make many copies of themselves, which then infect other cells. This process can be short or long during which one may not present any obvious symptom. And it is called theIncuba...
CSSCs display properties of mesenchymal stem cells, including clonal growth, multipotent differentiation, expression of stem cell-specific markers, ability to divide extensively in vitro and to generate adult keratocytes [11]. Genesis of corneal endothelium begins when periocular neural crest cells ...
Moreover, when stem cells divide, their telomeres shorten, and cells stop dividing and die [2, 28]. Telomerase prevents this decline in stem cells, by lengthening telomeres, but the diminished activity of this enzyme has been reported in the aging process [28, 29]. When mice are engineered...
As precursors of the gametes, hPGCs continue to divide mitotically when arriving at genital ridges. In the following processes of gonad development, hPGCs will go through a distinct process of development depending on their sex chromosome composition (XX/XY) in embryos. In female embryos (XX),...
The propensity of cells to divide was measured by a BrdU incorporation assay, Ki67 protein level (cell cycle marker) and a time-lapse technique. Advanced electron microscopy-based cell visualization and bioinformatics for gene transcription analysis were also used. We found that after IRI-treatment ...