title: Sequence, protein expression and extracellular-regulated kinase association of the hyaladherin RHAMM (receptor for hyaluronan mediated motility) in PC12 cells.
abstract: Differentiation of PC12 cells by nerve growth factor (NGF) or fibroblast growth factor-2 (FGF2) is dependent on signaling mediated by extracellular regulated kinase (ERK). We investigated the involvement of receptor for hyaluronan mediated motility (RHAMM) in this signaling pathway. A single RHAMM 3.2 kb transcript was detected in PC12 RNA. Reverse transcriptase-polymerase chain reaction generated a 2141 bp cDNA that had identical sequence to rat brain RHAMM and showed no evidence of alternate splicing. Several RHAMM species were identified by Western blotting. Immunohistochemistry showed RHAMM localization to the cytoskeleton, neurites and growth cones. Following stimulation of PC12 cells with NGF or FGF2 RHAMM was co-immunoprecipitated by phosphorylation-specific anti-ERK antibodies, indicating a role for RHAMM in ERK signaling in PC12 cells.
authors.affiliation: Department of Physiology, Faculty of Medicine, University of Manitoba, 730 William Avenue, Winnipeg, R3E 3J7, Manitoba, Canada.
authors.forename: B D
authors.initials: BD
authors.lastname: Lynn
authors.forename: X
authors.initials: X
authors.lastname: Li
authors.forename: P A
authors.initials: PA
authors.lastname: Cattini
authors.forename: J I
authors.initials: JI
authors.lastname: Nagy
mesh_terms: D000595:Amino Acid Sequence / Q000502:physiology; D000818:Animals; D001483:Base Sequence / Q000235:genetics; D002451:Cell Compartmentation / Q000235:genetics; D002454:Cell Differentiation / Q000187:drug effects / Q000502:physiology*; D018076:DNA, Complementary / Q000737:chemistry / Q000235:genetics / Q000302:isolation & purification; D016326:Extracellular Matrix Proteins / Q000235:genetics / Q000302:isolation & purification* / Q000378:metabolism; D016222:Fibroblast Growth Factor 2 / Q000494:pharmacology; D015870:Gene Expression / Q000502:physiology*; D018960:Hyaluronan Receptors / Q000235:genetics / Q000302:isolation & purification* / Q000378:metabolism; D007150:Immunohistochemistry; D020935:MAP Kinase Signaling System / Q000187:drug effects / Q000502:physiology*; D020928:Mitogen-Activated Protein Kinases / Q000187:drug effects / Q000378:metabolism*; D020932:Nerve Growth Factor / Q000494:pharmacology; D016716:PC12 Cells / Q000166:cytology / Q000187:drug effects / Q000378:metabolism*; D020033:Protein Isoforms / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism; D012333:RNA, Messenger / Q000737:chemistry / Q000235:genetics / Q000302:isolation & purification; D051381:Rats
chemical_list: D018076:DNA, Complementary; D016326:Extracellular Matrix Proteins; D018960:Hyaluronan Receptors; D020033:Protein Isoforms; D012333:RNA, Messenger; C098946:hyaluronan-mediated motility receptor; D016222:Fibroblast Growth Factor 2; D020932:Nerve Growth Factor; D020928:Mitogen-Activated Protein Kinases