REGULATORY T–CELLS: ORIGIN AND FUNCTION

compactifications and function spaces on weighted semigruops

chapter one is devoted to a moderate discussion on preliminaries, according to our requirements. chapter two which is based on our work in (24) is devoted introducting weighted semigroups (s, w), and studying some famous function spaces on them, especially the relations between go (s, w) and other function speces are invesigated. in fact this chapter is a complement to (32). one of the main fea...

Peripheral and Thymic Foxp3+ Regulatory T Cells in Search of Origin, Distinction, and Function

Over the past decade, much has been learnt and much more to discover about Foxp3(+) regulatory T cells (Tregs). Initially, it was thought that Tregs were a unique entity that originates in the thymus. It is now recognized that there is a fraternal twin sibling that is generated in the periphery. The difficulty is in the distinction between these two subsets. The ability to detect, monitor, and ...

Endosperm origin, development, and function.

Their Origin , Specificity , and Function

though NK cells and T cells share a number of biological functions including cytotoxicity and lymphokine secretion (1), they appear to differ fundamentally in the structure of their antigen receptors. Whereas T cells are known to recognize foreign antigens via their CD3-associated heterodimeric ce/15 or 3'/g TCK, the antigen recognition structures used by NK cells are still in the process of be...

Cryptic transcripts from a ubiquitous plasmid origin of replication confound tests for cis-regulatory function

A vast amount of research on the regulation of gene expression has relied on plasmid reporter assays. In this study, we show that plasmids widely used for this purpose constitutively produce substantial amounts of RNA from a TATA-containing cryptic promoter within the origin of replication. Readthrough of these RNAs into the intended transcriptional unit potently stimulated reporter activity wh...