Fibroblast growth factor receptor-1 signaling induces osteopontin expression and vascular smooth muscle cell-dependent adventitial fibroblast migration in vitro.
Authors Li Guohong; Oparil Suzanne; Kelpke Stacey S; Chen Yiu-Fai; Thompson John A;
JournalCirculation
PubMed ID12176960
'BACKGROUND: Increased expression of osteopontin (OPN), fibroblast growth factors (FGFs), and their type-1 receptor (FGFR-1) is associated with neointima formation and atherosclerosis. This study tested the hypothesis that ligand activation of FGFR-1 stimulates OPN expression in rat aortic smooth muscle cells (RASMCs), explored the signaling pathway involved, and assessed the ... More
Interaction codes within the family of mammalian Phox and Bem1p domain-containing proteins.
AuthorsLamark T, Perander M, Outzen H, Kristiansen K, Øvervatn A, Michaelsen E, Bjørkøy G, Johansen T,
JournalJ Biol Chem
PubMed ID12813044
'The Phox and Bem1p (PB1) domain constitutes a recently recognized protein-protein interaction domain found in the atypical protein kinase C (aPKC) isoenzymes, lambda/iota- and zeta PKC; members of mitogen-activated protein kinase (MAPK) modules like MEK5, MEKK2, and MEKK3; and in several scaffold proteins involved in cellular signaling. Among the last ... More
Ascorbic-acid transporter Slc23a1 is essential for vitamin C transport into the brain and for perinatal survival.
Authors Sotiriou Sotiria; Gispert Suzana; Cheng Jun; Wang Yaohui; Chen Amy; Hoogstraten-Miller Shelley; Miller Georgina F; Kwon Oran; Levine Mark; Guttentag Susan H; Nussbaum Robert L;
JournalNat Med
PubMed ID11984580
The only proven requirement for ascorbic acid (vitamin C) is in preventing scurvy, presumably because it is a cofactor for hydroxylases required for post-translational modifications that stabilize collagen. We have created mice deficient in the mouse ortholog (solute carrier family 23 member 1 or Slc23a1) of a rat ascorbic-acid transporter, ... More
Characterization of the 46-kDa intermediates of matrix metalloproteinase 3 (stromelysin 1) obtained by site-directed mutation of phenylalanine 83.
Authors Benbow U; Butticè G; Nagase H; Kurkinen M;
JournalJ Biol Chem
PubMed ID8631880
The precursor of matrix metalloproteinase 3 (MMP-3/ stromelysin 1) is activated in vitro by proteinases or mercurial compounds by stepwise processes which include the initial formation of short-lived intermediates and the subsequent intermolecular cleavage of the His82-Phe83 bond to generate the fully activated mature MMP-3 (Nagase, H., Enghild, J. J., ... More
Statin prevents tissue factor expression in human endothelial cells: role of Rho/Rho-kinase and Akt pathways.
Authors Eto Masato; Kozai Toshiyuki; Cosentino Francesco; Joch Hana; Lüscher Thomas F;
JournalCirculation
PubMed ID11956113
BACKGROUND: Tissue factor plays a pivotal role in thrombus formation in acute coronary syndromes. However, the regulatory mechanisms underlying tissue factor expression are poorly understood. Statins are effective in patients with acute coronary syndromes. Hence, the aim of this study was to clarify in human endothelial cells the signaling pathways ... More