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;
Journal:Circulation
PubMed ID:12176960
'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
The PAX3-FKHR fusion protein created by the t(2;13) translocation in alveolar rhabdomyosarcomas is a more potent transcriptional activator than PAX3.
Alveolar rhabdomyosarcomas are pediatric solid tumors with a hallmark cytogenetic abnormality: translocation of chromosomes 2 and 13 [t(2;13) (q35;q14)]. The genes on each chromosome involved in this translocation have been identified as the transcription factor-encoding genes PAX3 and FKHR. The NH2-terminal paired box and homeodomain DNA-binding domains of PAX3 are ... More
Isolation of mouse mesenchymal stem cells on the basis of expression of Sca-1 and PDGFR-a.
Authors:Houlihan DD, Mabuchi Y, Morikawa S, Niibe K, Araki D, Suzuki S, Okano H, Matsuzaki Y
Journal:Nat Protoc
PubMed ID:23154782
Platelet-derived growth factor receptor a (PDGFR-a) and stem cell antigen 1 (Sca-1) have recently been identified as selective markers of mouse mesenchymal stem cells (MSCs). PDGFR-a(+)Sca-1(+) (PaS) MSCs have augmented growth potential and robust tri-lineage differentiation compared with standard culture-selected MSCs. In addition, the selective isolation of PaS MSCs avoids ... 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;
Journal:Nat Med
PubMed ID:11984580
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;
Journal:J Biol Chem
PubMed ID:8631880
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