PD-1 expression is increased during HIV-1 infection [ 14] and negatively regulates T-cell activity and can be measured by T-cell expression of Programmed Death-1 (PD-1) marker, an inducible molecule that is expressed on all lymphoid cells that are highly susceptible to apoptosis [ 15, 16].
Cancer cells invade normal tissue as epithelial sheets or single cells by inducing expression of programs characteristic of developmental processes.
6 P140 also downregulates the expression of programmed death 1 (PD-1/CD279) receptor, a molecule of the CD28 family, which is overexpressed at the surface of MRL/lpr CD4 T cells.
In mammalian cells, FoxO factors act as potent transcriptional activators that upregulate the expression of programs of genes involved in stress resistance, cell cycle arrest, differentiation, apoptosis, autophagy, and metabolism [ 17- 30].
In recent studies, the inability to eliminate virus in patients with chronic hepatitis B has been attributed to high levels of expression of programmed death 1 (PD-1) and its ligand (PD-L1/B7-H1) on viral antigen-specific T-cells and antigen -presenting cells (APCs) respectively[ 1- 9].
Under the new Expression of Interest program, modeled on plans used in New Zealand and Australia, skilled would-be immigrants will apply for inclusion in a pool of approved employment candidates.
FOXO1 is a potent transcriptional activator that triggers the expression of a program of genes involved in cell cycle arrest, apoptosis, DNA repair and hypoxia responsiveness [ 16– 16].
32 In general, Class II histone deacetylases repress the activity of MEF2, a transcription factor that when released allows expression of a program of genes that result in cardiac hypertrophy.
Once the population density expands to critical threshold levels, QS systems activate replication programs and the full expression of virulence programs.
Let's assume that learner Irene wants to learn about "logic expressions" of the C++ programming language.
