Differential Activation of Mitogen-Activated Protein Kinases in Experimental Mesangioproliferative Glomerulonephritis

Differential activation of mitogen-activated protein kinases in ischemic and anesthetic preconditioning.

BACKGROUND Accumulating evidence pinpoints to the pivotal role of mitogen-activated protein kinases (MAPKs) in the signal transduction underlying cardiac preconditioning. METHODS PD98059, an inhibitor of extracellular signal-regulated protein kinase (MEK-ERK1/2), and SB203580, an inhibitor of p38 MAPK, were used to evaluate the role of MAPKs with respect to postischemic functional recovery in...

Editorial: Mitogen Activated Protein Kinases

Mitogen-activated Protein Kinases in Inflammation

Mitogen-activated protein kinases (MAPKs) play critical regulatory roles in the production of the pro-inflammatory cytokines and downstream signaling events which lead to inflammation. Inflammation is a primarily localized and protective response of host against microbial infection. Controlled inflammation is beneficial and necessary for host defense while uncontrolled inflammatory response res...

Mitogen-activated Protein Kinases in Chondrocytes

Previous studies suggested that tyrosine kinase activation is an important signal transduction event in the IL-1 response of chondrocytes. The present study identifies the mitogenactivated protein (MAP) kinases extracellular signal-regulated kinase (ERK)-1 and ERK-2 as major tyrosine phosphorylated proteins in IL-1 stimulated chondrocytes. Kinase assays on immunoprecipitates with myelin basic p...

Mechanisms of mitogen-activated protein kinase activation in experimental diabetes.

Various growth factors and vasoactive substances are implicated in the pathogenesis of renal growth seen in early diabetes mellitus (DM). Mitogen-activated protein kinase (MAPK) is an important mediator of these extracellular stimuli. Protein kinase C (PKC), an enzyme known to be stimulated in DM, also activates MAPK. Thus, MAPK activity was examined in glomeruli from streptozotocin-induced DM ...