Signal transduction pathways that contribute to myeloid differentiation

Signal transduction pathways regulating hematopoietic differentiation.

Signal transduction pathways leading to spore differentiation in Dictyostelium discoideum.

Cells that overexpress PKA as a consequence of carrying multiple copies of the gene encoding the catalytic subunit can be induced to sporulate when developing as single cells. A peptide phosphorylated by PKA, termed SDF-1, has recently been shown to stimulate this process (Anjard et al., 1997). Several genes have been implicated in a signal transduction pathway by which prestalk cells induce en...

Engineering Signal Transduction Pathways

Cells respond to their environment by sensing signals and translating them into changes in gene expression. In recent years, synthetic networks have been designed in both prokaryotic and eukaryotic systems to create new functionalities and for specific applications. In this review, we discuss the challenges associated with engineering signal transduction pathways. Furthermore, we address advant...

Signal transduction pathways that inhibit hepatitis B virus replication.

The replication of hepatitis B virus (HBV) in hepatocytes is strongly inhibited in response to IFN-alpha/beta and IFN-gamma. Although it has been previously demonstrated that IFN-alpha/beta eliminates HBV RNA-containing capsids from the cell in a proteasome-dependent manner, the precise cellular pathway that mediates this antiviral effect has not been identified. Because IFN-induced signal tran...

Signal Transduction Pathways for Leptin

Leptin is a critical regulator of energy balance in mammals and has served as a launch point for innumerable studies examining the regulation of food intake and energy expenditure (1). At high physiological concentrations, leptin causes a decrease in food intake, an increase in energy expenditure, and a shift to increased fatty acid oxidation. These physiological shifts lead to a decrease in bo...