Abstract
Bone marrow cells (BMC) can be induced to express neuronal phenotypic features in vitro, but the extent to which they can transdifferentiate to mature, functional neurons is uncertain. We examined the effects of different growth factors and combinations thereof on the expression of neuronal marker proteins in cultures of BMC enriched in marrow stromal cells. Patterns of neuronal marker expression varied depending on the growth factor or factors to which BMC cultures were exposed. Cultures treated for up to 5 weeks with epidermal growth factor, fibroblast growth factor-2, retinoic acid, and nerve growth factor displayed neuron-like cellular processes and expressed neuronal markers, including the neuronal nuclear antigen NeuN, microtubule-associated protein 2, tau, synaptophysin, α1A and α1B calcium channel subunits, NR2A glutamate receptor subunits, and γ-aminobutyric acid. However, the intracellular distribution of these markers was distinct from their usual distribution in mature neurons. We conclude that a variety of growth factors can drive BMC toward a neuronal phenotype or phenotypes, but that morphological neuronal features and the ectopic expression of neuronal proteins and neurotransmitters may not equate with the ability to execute normal neuronal functions.
| Original language | English |
|---|---|
| Pages (from-to) | 78-89 |
| Number of pages | 12 |
| Journal | Experimental Neurology |
| Volume | 184 |
| Issue number | 1 |
| DOIs | |
| State | Published - Nov 2003 |
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Induction of neuronal markers in bone marrow cells : Differential effects of growth factors and patterns of intracellular expression. / Jin, Kunlin; Mao, Xiao Ou; Batteur, Sophie; Sun, Yunjuan; Greenberg, David A.
In: Experimental Neurology, Vol. 184, No. 1, 11.2003, p. 78-89.Research output: Contribution to journal › Article
TY - JOUR
T1 - Induction of neuronal markers in bone marrow cells
T2 - Differential effects of growth factors and patterns of intracellular expression
AU - Jin, Kunlin
AU - Mao, Xiao Ou
AU - Batteur, Sophie
AU - Sun, Yunjuan
AU - Greenberg, David A.
PY - 2003/11
Y1 - 2003/11
N2 - Bone marrow cells (BMC) can be induced to express neuronal phenotypic features in vitro, but the extent to which they can transdifferentiate to mature, functional neurons is uncertain. We examined the effects of different growth factors and combinations thereof on the expression of neuronal marker proteins in cultures of BMC enriched in marrow stromal cells. Patterns of neuronal marker expression varied depending on the growth factor or factors to which BMC cultures were exposed. Cultures treated for up to 5 weeks with epidermal growth factor, fibroblast growth factor-2, retinoic acid, and nerve growth factor displayed neuron-like cellular processes and expressed neuronal markers, including the neuronal nuclear antigen NeuN, microtubule-associated protein 2, tau, synaptophysin, α1A and α1B calcium channel subunits, NR2A glutamate receptor subunits, and γ-aminobutyric acid. However, the intracellular distribution of these markers was distinct from their usual distribution in mature neurons. We conclude that a variety of growth factors can drive BMC toward a neuronal phenotype or phenotypes, but that morphological neuronal features and the ectopic expression of neuronal proteins and neurotransmitters may not equate with the ability to execute normal neuronal functions.
AB - Bone marrow cells (BMC) can be induced to express neuronal phenotypic features in vitro, but the extent to which they can transdifferentiate to mature, functional neurons is uncertain. We examined the effects of different growth factors and combinations thereof on the expression of neuronal marker proteins in cultures of BMC enriched in marrow stromal cells. Patterns of neuronal marker expression varied depending on the growth factor or factors to which BMC cultures were exposed. Cultures treated for up to 5 weeks with epidermal growth factor, fibroblast growth factor-2, retinoic acid, and nerve growth factor displayed neuron-like cellular processes and expressed neuronal markers, including the neuronal nuclear antigen NeuN, microtubule-associated protein 2, tau, synaptophysin, α1A and α1B calcium channel subunits, NR2A glutamate receptor subunits, and γ-aminobutyric acid. However, the intracellular distribution of these markers was distinct from their usual distribution in mature neurons. We conclude that a variety of growth factors can drive BMC toward a neuronal phenotype or phenotypes, but that morphological neuronal features and the ectopic expression of neuronal proteins and neurotransmitters may not equate with the ability to execute normal neuronal functions.
UR - http://www.scopus.com/inward/record.url?scp=0345257757&partnerID=8YFLogxK
U2 - 10.1016/S0014-4886(03)00133-X
DO - 10.1016/S0014-4886(03)00133-X
M3 - Article
C2 - 14637082
AN - SCOPUS:0345257757
VL - 184
SP - 78
EP - 89
JO - Experimental Neurology
JF - Experimental Neurology
SN - 0014-4886
IS - 1
ER -