Results 81 to 90 of about 1,459,173 (350)

Dynamic shifts in chromatin states differentially mark the proliferative basal cells and terminally differentiated cells of the developing epidermis

open access: yesEpigenetics, 2020
Post-translational modifications on nucleosomal histones represent a key epigenetic regulatory mechanism to mediate the complex gene expression, DNA replication, and cell cycle changes that occur in embryonic cells undergoing lineage specification ...
Yan Ting Shue   +6 more
doaj   +1 more source

Role of the Mitochondrial Genome During Early Development in Mice [PDF]

open access: yes, 1973
The role of the mitochondrial genome in early development and differentiation was studied in mouse embryos cultured in vitro from the two to four cell stage to the blastocyst (about 100 cells).
Chase, David G., Pikó, Lajos
core  

JUN dependency in distinct early and late BRAF inhibition adaptation states of melanoma. [PDF]

open access: yes, 2016
A prominent mechanism of acquired resistance to BRAF inhibitors in BRAF (V600) -mutant melanoma is associated with the upregulation of receptor tyrosine kinases.
Atefi, Mohammad   +16 more
core   +3 more sources

CELLULAR DIFFERENTIATION IN THE THYMUS [PDF]

open access: yesThe Journal of Experimental Medicine, 1970
Young adult rat thymus and lymph node cell subpopulations were obtained by differential flotation on discontinuous BSA density gradients and assayed for properties characteristic of mature thymus-derived lymphocytes. One such subpopulation (C) of thymocytes was enriched in its ability to respond mitotically to a hemiallogeneic MLR stimulus, to localize
Byron H. Waksman   +2 more
openaire   +2 more sources

A stepwise emergence of evolution in the RNA world

open access: yesFEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

The calcium-sensing receptor as a regulator of cellular fate in normal and pathological conditions [PDF]

open access: yes, 2013
The calcium-sensing receptor (CaSR) belongs to the evolutionarily conserved family of plasma membrane G protein-coupled receptors (GPCRs). Early studies identified an essential role for the CaSR in systemic calcium homeostasis through its ability to ...
Benoit, Yves   +3 more
core   +1 more source

B cell mechanobiology in health and disease: emerging techniques and insights into therapeutic responses

open access: yesFEBS Letters, EarlyView.
B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro   +2 more
wiley   +1 more source

Agents promoting cellular differentiation [PDF]

open access: yes, 2006
Discusses the concept of cellular differentiation as an important anti-cancer mechanism and the data that supports the use of retinoids, vitamin D and other products for this ...
Staff, Clinic
core   +1 more source

The effects of growth factors on multicellular spheroids formed by chick embryonic retinal cells [PDF]

open access: yes, 1997
Retinal cells from chick embryos aged 7.5 days of gestation were cultured for two months in a non-adherent suspension culture dish to study the effects of growth factors and co-culture with retinal pigment epithelial cells on their differentiation ...
Matsuo, Nobuhiko   +2 more
core   +1 more source

P‐glycoprotein modulates the fluidity gradient of the plasma membrane of multidrug resistant CHO cells

open access: yesFEBS Letters, EarlyView.
To explore the impact of the overexpression of the multidrug‐transporter P‐glycoprotein (ABCB1) on membrane fluidity, we compared the transversal gradient of mobility and microviscosity in plasma membranes of drug‐sensitive Chinese hamster ovary cells (AuxB1) and their multidrug‐resistant derivatives (B30) using the fluorescent n‐(9‐anthroyloxy) fatty ...
Roger Busche   +2 more
wiley   +1 more source

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