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Brn3a regulation of TrkA/NGF receptor expression in developing sensory neurons
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| Zeitschriftentitel: | Development |
|---|---|
| Personen und Körperschaften: | , , , , |
| In: | Development, 130, 2003, 15, S. 3525-3534 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
The Company of Biologists
|
| Schlagwörter: |
| author_facet |
Ma, Long Lei, Lei Eng, S. Raisa Turner, Eric Parada, Luis F. Ma, Long Lei, Lei Eng, S. Raisa Turner, Eric Parada, Luis F. |
|---|---|
| author |
Ma, Long Lei, Lei Eng, S. Raisa Turner, Eric Parada, Luis F. |
| spellingShingle |
Ma, Long Lei, Lei Eng, S. Raisa Turner, Eric Parada, Luis F. Development Brn3a regulation of TrkA/NGF receptor expression in developing sensory neurons Developmental Biology Molecular Biology |
| author_sort |
ma, long |
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Ma, Long Lei, Lei Eng, S. Raisa Turner, Eric Parada, Luis F. 1477-9129 0950-1991 The Company of Biologists Developmental Biology Molecular Biology http://dx.doi.org/10.1242/dev.00582 <jats:p>The TrkA/NGF receptor is essential for the survival and differentiation of sensory neurons. The molecular mechanisms regulating tissue and stage-specific expression of TrkA are largely unknown. The Brn3a POU-domain transcription factor has been implicated in the development of the PNS and proposed as a transcription regulator for TrkA. The molecular mechanisms underlying the regulation of TrkA by Brn3a is unclear. In this study, we provide genetic,transgenic and biochemical evidence that Brn3a binds to novel, specific sites in the 457 bp enhancer that regulates TrkA expression in embryonic sensory neurons. We employ Bax-knockout mice, in which sensory neurons no longer require neurotrophins for survival, to uncouple TrkA-dependent cell death from downregulation of TrkA expression. In addition, when mutagenized, the novel Brn3a-binding sites identified fail to drive appropriate reporter transgene expression in sensory neurons. Thus, TrkA, a gene that is crucial for the differentiation and survival of sensory nociceptive neurons, requires Brn3a to maintain normal transcriptional activity.</jats:p> Brn3a regulation of TrkA/NGF receptor expression in developing sensory neurons Development |
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The Company of Biologists, 2003 |
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| title |
Brn3a regulation of TrkA/NGF receptor expression in developing sensory neurons |
| title_unstemmed |
Brn3a regulation of TrkA/NGF receptor expression in developing sensory neurons |
| title_full |
Brn3a regulation of TrkA/NGF receptor expression in developing sensory neurons |
| title_fullStr |
Brn3a regulation of TrkA/NGF receptor expression in developing sensory neurons |
| title_full_unstemmed |
Brn3a regulation of TrkA/NGF receptor expression in developing sensory neurons |
| title_short |
Brn3a regulation of TrkA/NGF receptor expression in developing sensory neurons |
| title_sort |
brn3a regulation of trka/ngf receptor expression in developing sensory neurons |
| topic |
Developmental Biology Molecular Biology |
| url |
http://dx.doi.org/10.1242/dev.00582 |
| publishDate |
2003 |
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3525-3534 |
| description |
<jats:p>The TrkA/NGF receptor is essential for the survival and differentiation of sensory neurons. The molecular mechanisms regulating tissue and stage-specific expression of TrkA are largely unknown. The Brn3a POU-domain transcription factor has been implicated in the development of the PNS and proposed as a transcription regulator for TrkA. The molecular mechanisms underlying the regulation of TrkA by Brn3a is unclear. In this study, we provide genetic,transgenic and biochemical evidence that Brn3a binds to novel, specific sites in the 457 bp enhancer that regulates TrkA expression in embryonic sensory neurons. We employ Bax-knockout mice, in which sensory neurons no longer require neurotrophins for survival, to uncouple TrkA-dependent cell death from downregulation of TrkA expression. In addition, when mutagenized, the novel Brn3a-binding sites identified fail to drive appropriate reporter transgene expression in sensory neurons. Thus, TrkA, a gene that is crucial for the differentiation and survival of sensory nociceptive neurons, requires Brn3a to maintain normal transcriptional activity.</jats:p> |
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| author | Ma, Long, Lei, Lei, Eng, S. Raisa, Turner, Eric, Parada, Luis F. |
| author_facet | Ma, Long, Lei, Lei, Eng, S. Raisa, Turner, Eric, Parada, Luis F., Ma, Long, Lei, Lei, Eng, S. Raisa, Turner, Eric, Parada, Luis F. |
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| description | <jats:p>The TrkA/NGF receptor is essential for the survival and differentiation of sensory neurons. The molecular mechanisms regulating tissue and stage-specific expression of TrkA are largely unknown. The Brn3a POU-domain transcription factor has been implicated in the development of the PNS and proposed as a transcription regulator for TrkA. The molecular mechanisms underlying the regulation of TrkA by Brn3a is unclear. In this study, we provide genetic,transgenic and biochemical evidence that Brn3a binds to novel, specific sites in the 457 bp enhancer that regulates TrkA expression in embryonic sensory neurons. We employ Bax-knockout mice, in which sensory neurons no longer require neurotrophins for survival, to uncouple TrkA-dependent cell death from downregulation of TrkA expression. In addition, when mutagenized, the novel Brn3a-binding sites identified fail to drive appropriate reporter transgene expression in sensory neurons. Thus, TrkA, a gene that is crucial for the differentiation and survival of sensory nociceptive neurons, requires Brn3a to maintain normal transcriptional activity.</jats:p> |
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| spelling | Ma, Long Lei, Lei Eng, S. Raisa Turner, Eric Parada, Luis F. 1477-9129 0950-1991 The Company of Biologists Developmental Biology Molecular Biology http://dx.doi.org/10.1242/dev.00582 <jats:p>The TrkA/NGF receptor is essential for the survival and differentiation of sensory neurons. The molecular mechanisms regulating tissue and stage-specific expression of TrkA are largely unknown. The Brn3a POU-domain transcription factor has been implicated in the development of the PNS and proposed as a transcription regulator for TrkA. The molecular mechanisms underlying the regulation of TrkA by Brn3a is unclear. In this study, we provide genetic,transgenic and biochemical evidence that Brn3a binds to novel, specific sites in the 457 bp enhancer that regulates TrkA expression in embryonic sensory neurons. We employ Bax-knockout mice, in which sensory neurons no longer require neurotrophins for survival, to uncouple TrkA-dependent cell death from downregulation of TrkA expression. In addition, when mutagenized, the novel Brn3a-binding sites identified fail to drive appropriate reporter transgene expression in sensory neurons. Thus, TrkA, a gene that is crucial for the differentiation and survival of sensory nociceptive neurons, requires Brn3a to maintain normal transcriptional activity.</jats:p> Brn3a regulation of TrkA/NGF receptor expression in developing sensory neurons Development |
| spellingShingle | Ma, Long, Lei, Lei, Eng, S. Raisa, Turner, Eric, Parada, Luis F., Development, Brn3a regulation of TrkA/NGF receptor expression in developing sensory neurons, Developmental Biology, Molecular Biology |
| title | Brn3a regulation of TrkA/NGF receptor expression in developing sensory neurons |
| title_full | Brn3a regulation of TrkA/NGF receptor expression in developing sensory neurons |
| title_fullStr | Brn3a regulation of TrkA/NGF receptor expression in developing sensory neurons |
| title_full_unstemmed | Brn3a regulation of TrkA/NGF receptor expression in developing sensory neurons |
| title_short | Brn3a regulation of TrkA/NGF receptor expression in developing sensory neurons |
| title_sort | brn3a regulation of trka/ngf receptor expression in developing sensory neurons |
| title_unstemmed | Brn3a regulation of TrkA/NGF receptor expression in developing sensory neurons |
| topic | Developmental Biology, Molecular Biology |
| url | http://dx.doi.org/10.1242/dev.00582 |