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Cited by 208

The DOI matches its Crossref record; 6 of the 6 references it cites were found in a registry or an index.

Dopamine-induced proliferation of adult neural precursor cells in the mammalian subventricular zone is mediated through EGF

Open access
O'Keeffe, Gráinne C., Tyers, Pam, Aarsland, Dag, Dalley, Jeffrey W., Barker, Roger A., Caldwell, Maeve A.·2009·Proceedings of the National Academy of Sciences

Abstract

A reduction in dopaminergic innervation of the subventricular zone (SVZ) is responsible for the impaired proliferation of its resident precursor cells in this region in Parkinson's disease (PD). Here, we show that this effect involves EGF, but not FGF2. In particular, we demonstrate that dopamine increases the proliferation of SVZ-derived cells by releasing EGF in a PKC-dependent manner in vitro and that activation of the EGF receptor (EGFR) is required for this effect. We also show that dopamine selectively expands the GFAP + multipotent stem cell population in vitro by promoting their self-renewal. Furthermore, in vivo dopamine depletion leads to a decrease in precursor cell proliferation in the SVZ concomitant with a reduction in local EGF production, which is reversed through the administration of the dopamine precursor levodopa ( l -DOPA). Finally, we show that EGFR + cells are depleted in the SVZ of human PD patients compared with age-matched controls. We have therefore demonstrated a unique role for EGF as a mediator of dopamine-induced precursor cell proliferation in the SVZ, which has potential implications for future therapies in PD.

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Metadata

Authors
O'Keeffe, G. C., Tyers, P., Aarsland, D., Dalley, J. W., Barker, R. A., & Caldwell, M. A.
Venue
Proceedings of the National Academy of Sciences
Published
2009-05-26
Volume
106
Issue
21
Pages
8754-8759
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2124446289
Cited by
208
References
6
FWCI
5.53
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Dopamine-induced proliferation of adult neural precursor cells in the mammalian subventricular zone is mediated through EGF. https://app.cochat.ai/papers/10.1073/pnas.0803955106
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O'Keeffe, G. C., Tyers, P., Aarsland, D., Dalley, J. W., Barker, R. A., & Caldwell, M. A. (2009). Dopamine-induced proliferation of adult neural precursor cells in the mammalian subventricular zone is mediated through EGF. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0803955106

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