Post-transcriptional Regulation of NK Cell Activation

Post-transcriptional Regulation of NK Cell Activation

Natural killer (NK) cells play key roles in innate and adaptive immune defenses. NK cell responses are mediated by two major mechanisms: the direct cytolysis of target cells, and immune regulation by production of various cytokines. Many previous reports show that the complex NK cell activation process requires de novo gene expression regulated at both transcriptional and post-transcriptional l...

Down-regulation of lck mRNA by T cell activation involves transcriptional and post-transcriptional mechanisms.

The p56lck tyrosine kinase is most likely to be involved in signal transduction of T lymphocyte activation. After full activation through the TcR/CD3 complex lck mRNA is transiently down-modulated. This down-modulation was due to an early decrease of both transcription and stability of the lck mRNA. To study the involvement of transcriptional and post-transcriptional factors in this regulations...

Transcriptional regulation of hepatic stellate cell activation.

The hepatic stellate cell (HSC) is now well established as the key cellular element involved in the development of hepatic fibrosis and because of this there is considerable interest in establishing the molecular events that trigger and perpetuate HSC activation. HSC activation at the level of gene transcription requires the coordinated activity of several key transcriptional regulators of the ...

Transcriptional regulation of E-cadherin and oncoprotein E7 by valproic acid in HPV positive cell lines

Objective(s): Valproic acid (VPA) has proven to be as one of the most promising useful drug with anticancer properties.In this study, we investigate the VPA effects on E-cadherin expression in HeLa, TC1, MKN45, and HCT116 cell lines.  This study assesses the effects of VPA on human papillomavirus E7 expression in HPV positive cell lines. Materials and Methods: Cell lines were treated by2 mmol/...

APC-independent NK cell activation.