αvβ3 Integrins and Pyk2 Mediate Insulin-Like Growth Factor I Activation of Src and Mitogen-Activated Protein Kinase in 3T3-L1 CellsThe Endocrine Society - Tập 19 Số 7 - Trang 1859-1867 - 2005
H Sekimoto, Jodi Eipper-Mains, Sunthorn Pond‐Tor, Charlotte M. Boney
AbstractIGF-I stimulates cell growth through interaction of the IGF receptor
with multiprotein signaling complexes. However, the mechanisms of IGF-I
receptor-mediated signaling are not completely understood. We have previously
shown that IGF-I-stimulated 3T3-L1 cell proliferation is dependent on Src
activation of the ERK-1/2 MAPK pathway. We hypothesized that IGF-I activation of
the MAPK pathway i... hiện toàn bộ
In Vivo Induction of Glial Cell Proliferation and Axonal Outgrowth and Myelination by Brain-Derived Neurotrophic FactorThe Endocrine Society - Tập 20 Số 11 - Trang 2987-2998 - 2006
Dorien M. de Groot, Anton J. M. Coenen, A.A.J. Verhofstad, F. Van Herp, Gerard J. M. Martens
AbstractBrain-derived neurotrophic factor (BDNF) belongs to the neurotrophin
family of neuronal cell survival and differentiation factors but is thought to
be involved in neuronal cell proliferation and myelination as well. To explore
the role of BDNF in vivo, we employed the intermediate pituitary melanotrope
cells of the amphibian Xenopus laevis as a model system. These cells mediate
background ... hiện toàn bộ
11β-Hydroxysteroid Dehydrogenase Expression and Glucocorticoid Synthesis Are Directed by a Molecular Switch during Osteoblast DifferentiationThe Endocrine Society - Tập 19 Số 3 - Trang 621-631 - 2005
Marco Eijken, Martin Hewison, Mark S. Cooper, Frank H. de Jong, Hideki Chiba, Paul M. Stewart, André G. Uitterlinden, Huibert A. P. Pols, Johannes P.T.M. van Leeuwen
Abstract11β-Hydroxysteroid dehydrogenase type 1 (11β-HSD1) plays an important
role in the prereceptor regulation of corticosteroids by locally converting
cortisone into active cortisol. To investigate the impact of this mechanism on
osteoblast development, we have characterized 11β-HSD1 activity and regulation
in a differentiating human osteoblast cell line (SV-HFO). Continuous treatment
with the ... hiện toàn bộ
Attenuation of Glucocorticoid Signaling through Targeted Degradation of p300 via the 26S Proteasome PathwayThe Endocrine Society - Tập 16 Số 12 - Trang 2819-2827 - 2002
Qiao Li, Anna Su, Jihong Chen, Yvonne A. Lefebvre, Robert J.G. Haché
AbstractThe effects of acetylation on gene expression are complex, with changes
in chromatin accessibility intermingled with direct effects on transcriptional
regulators. For the nuclear receptors, both positive and negative effects of
acetylation on specific gene transcription have been observed. We report that
p300 and steroid receptor coactivator 1 interact transiently with the
glucocorticoid r... hiện toàn bộ