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Urokinase receptor cleavage: a crucial step in fibroblast-to-myofibroblast differentiation

Fibroblasts migrate into and repopulate connective tissue wounds. At the wound edge, fibroblasts differentiate into myofibroblasts and promote wound closure. Regulated fibroblast to myofibroblast differentiation is critical for regenerative healing....
Authors: Bernstein AM, Twining SS, Warejcka DJ, Tall E, Masur SK

The B''/PR72 subunit mediates Ca2+-dependent dephosphorylation of DARPP-32 by protein phosphatase 2A

In dopaminoceptive neurons, dopamine- and cAMP-regulated phosphoprotein of 32 kDa (DARPP-32) plays a central role in integrating the effects of dopamine and other neurotransmitters. Phosphorylation of DARPP-32 at Thr-34 by protein kinase A results in...
Authors: Ahn JH, Sung JY, McAvoy T, Nishi A, Janssens V, Goris J, Greengard P, Nairn AC

E-cadherin inhibits cell surface localization of the pro-migratory 5T4 oncofetal antigen in mouse embryonic stem cells

Epithelial-mesenchymal transition (EMT) events occur during embryonic development and are important for the metastatic spread of epithelial tumors. We show here that spontaneous differentiation of mouse ES cells is associated with an E- to N-cadherin...
Authors: Spencer HL, Eastham AM, Merry CL, Southgate TD, Perez-Campo F, Soncin F, Ritson S, Kemler R, Stern...

Targeting Mutant (V600E) B-Raf in Melanoma Interrupts Immunoediting of Leukocyte Functions and Melanoma Extravasation

Polymorphonuclear neutrophils (PMN) facilitate melanoma cell extravasation under dynamic flow conditions by the binding of intercellular adhesion molecule-1 (ICAM-1) on melanoma cells to beta(2) integrins on PMNs, which is mediated by endogenously...
Authors: Liang S, Sharma A, Peng HH, Robertson G, Dong C

Cyclosporin A inhibits mouse cytomegalovirus infection via a cyclophilin-dependent pathway specifically in neural stem/progenitor cells

The potential of neural stem and progenitor cell (NSPC) transplantation in neurodegenerative disease raises a concern about immunosuppressive agents and opportunistic neurotropic pathogens that may interfere with engraftment. Cytomegalovirus (CMV) is...
Authors: Kawasaki H, Mocarski ES, Kosugi I, Tsutsui Y

Protein kinase C delta negatively regulates tyrosine hydroxylase activity and dopamine synthesis by enhancing protein phosphatase-2A activity in dopaminergic neurons

Tyrosine hydroxylase (TH), the rate-limiting enzyme in dopamine synthesis, can be regulated by phosphorylation at multiple serine residues, including serine-40. In the present study, we report a novel interaction between a key member of the novel PKC...
Authors: Zhang D, Kanthasamy A, Yang Y, Anantharam V, Kanthasamy A

Apolipoprotein E Interrupts Interleukin-1 Signaling in Vascular Smooth Muscle Cells

OBJECTIVES: Apolipoprotein E (apoE) exerts antiatherogenic effects but precise mechanisms remain unclear. We here investigated the effect of apoE on intracellular signaling by interleukin-1beta (IL-1beta), a proinflammatory cytokine present in...
Authors: Kawamura A, Baitsch D, Telgmann R, Feuerborn R, Weissen-Plenz G, Hagedorn C, Saku K, Brand-Herrmann...

A crucial role for p57(Kip2) in the intracellular timer that controls oligodendrocyte differentiation

The intracellular molecular mechanism that controls the timing of oligodendrocyte differentiation remains unknown. Temple and Raff (1986) previously showed that an oligodendrocyte precursor cell (OPC) can divide a maximum of approximately eight times...
Authors: Dugas JC, Ibrahim A, Barres BA

Unc119 Regulates Myofibroblast Differentiation through the Activation of Fyn and the p38 MAPK Pathway

Unc119 is an adaptor protein that is involved in the development of the vertebrate nervous system. We have shown that Unc119 stimulates the induction of alpha-smooth muscle actin (alpha-SMA) and myofibroblast differentiation by TGF-beta in human lung...
Authors: Vepachedu R, Gorska MM, Singhania N, Cosgrove GP, Brown KK, Alam R

Expression and Regulation of the Metalloproteinase ADAM-8 during Human Neutrophil Pathophysiological Activation and Its Catalytic Activity on L-Selectin Shedding

A disintegrin and metalloproteinase domain (ADAM) proteins are a family of transmembrane glycoproteins with heterogeneous expression profiles and proteolytic, cell-adhesion, -fusion, and -signaling properties. One of its members, ADAM-8, is expressed...
Authors: Gomez-Gaviro M, Dominguez-Luis M, Canchado J, Calafat J, Janssen H, Lara-Pezzi E, Fourie A, Tugores...
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