title: Umbilical cord transforming growth factor-beta 3: isolation, comparison with recombinant TGF-beta 3 and cellular localization.
abstract: The transforming growth factor beta (TGF-beta) family of growth modulators play critical roles in tissue development and maintenance. Recent data suggest that individual TGF-beta isoforms (TGF-beta 1, -beta 2 and -beta 3) have overlapping yet distinct biological actions and target cell specificities, both in developing and adult tissues. The TGF-beta 3 isoform was purified to homogeneity from both natural and recombinant sources and characterized by laser desorption mass spectrometry, by protein sequencing, by amino acid analysis and by biological activity. TGF-beta 3 was the major TGF-beta isoform in umbilical cord (230 ng/g), and was physically and biologically indistinguishable from recombinant TGF-beta 3 and from the tumor growth inhibitory (TGI) protein found in umbilical cord. Immunohistochemistry using antipeptide TGF-beta 3 specific antibody showed TGF-beta 3 localization in perivascular smooth muscle.
authors.affiliation: Pharmaceuticals Division, Oncogene Science, Uniondale, NY 11553, USA.
authors.forename: A A
authors.initials: AA
authors.lastname: Stewart
authors.forename: J D
authors.initials: JD
authors.lastname: Haley
authors.forename: G Y
authors.initials: GY
authors.lastname: Qu
authors.forename: K
authors.initials: K
authors.lastname: Stam
authors.forename: D
authors.initials: D
authors.lastname: Fenyö
authors.forename: B T
authors.initials: BT
authors.lastname: Chait
authors.forename: D R
authors.initials: DR
authors.lastname: Marshak
authors.forename: A Y
authors.initials: AY
authors.lastname: Ng
authors.forename: G
authors.initials: G
authors.lastname: Marley
authors.forename: K K
authors.initials: KK
authors.lastname: Iwata
mesh_terms: D000595:Amino Acid Sequence; D000596:Amino Acids / Q000032:analysis; D000911:Antibodies, Monoclonal / Q000276:immunology / Q000494:pharmacology; D015153:Blotting, Western; D002455:Cell Division / Q000187:drug effects; D004591:Electrophoresis, Polyacrylamide Gel; D005786:Gene Expression Regulation / Q000235:genetics; D006801:Humans; D007150:Immunohistochemistry; D008969:Molecular Sequence Data; D008970:Molecular Weight; D016297:Mutagenesis, Site-Directed / Q000235:genetics; D011994:Recombinant Proteins / Q000302:isolation & purification* / Q000494:pharmacology; D017421:Sequence Analysis; D017386:Sequence Homology, Amino Acid; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D016212:Transforming Growth Factor beta / Q000145:classification / Q000302:isolation & purification* / Q000378:metabolism; D014470:Umbilical Cord / Q000737:chemistry*
chemical_list: D000596:Amino Acids; D000911:Antibodies, Monoclonal; D011994:Recombinant Proteins; D016212:Transforming Growth Factor beta