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Expression of low‐affinity NGF receptor and trkB mRNA in human SH‐SY5Y neuroblastoma cells
Author(s) -
Ehrhard Patricia B.,
Ganter Ursula,
Schmutz Béatrice,
Bauer Joachim,
Otten Uwe
Publication year - 1993
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/0014-5793(93)80890-7
Subject(s) - tropomyosin receptor kinase b , neurotrophin , sh sy5y , nerve growth factor , tropomyosin receptor kinase a , low affinity nerve growth factor receptor , neurotrophic factors , receptor , brain derived neurotrophic factor , biology , microbiology and biotechnology , neurite , cell culture , endocrinology , neuroblastoma , biochemistry , genetics , in vitro
We have used the human neuroblastoma cell line SH‐SY5Y as a model system to investigate the expression and regulation of the receptors for brain‐derived neurotrophic factor (BDNF), a member of the nerve growth factor (NGF) family of neurotrophins. We demonstrate that SH‐SY5Y cells express transcripts encoding the low‐affinity NGF receptor (LNGFR) and trkB, the signal transducing receptor unit for BDNF. Interaction of BDNF with SH‐SY5Y cells increased the transcription of the c‐fos gene, showing that these molecules encode functional BDNF receptors. Our findings that differentiating agents such as retinoids and cAMP analogs increased the expression of LNGFR, but decreased trkB mRNA levels, suggest that LNGFR and trkB have different roles during neuronal differentiation.