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Physiological Modulation of Intestinal Motility by Enteric Dopaminergic Neurons and the D2Receptor: Analysis of Dopamine Receptor Expression, Location, Development, and Function in...
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| Zeitschriftentitel: | The Journal of Neuroscience |
|---|---|
| Personen und Körperschaften: | , , , , |
| In: | The Journal of Neuroscience, 26, 2006, 10, S. 2798-2807 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Society for Neuroscience
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| Schlagwörter: |
| author_facet |
Li, Zhi Shan Schmauss, Claudia Cuenca, Abigail Ratcliffe, Elyanne Gershon, Michael D. Li, Zhi Shan Schmauss, Claudia Cuenca, Abigail Ratcliffe, Elyanne Gershon, Michael D. |
|---|---|
| author |
Li, Zhi Shan Schmauss, Claudia Cuenca, Abigail Ratcliffe, Elyanne Gershon, Michael D. |
| spellingShingle |
Li, Zhi Shan Schmauss, Claudia Cuenca, Abigail Ratcliffe, Elyanne Gershon, Michael D. The Journal of Neuroscience Physiological Modulation of Intestinal Motility by Enteric Dopaminergic Neurons and the D2Receptor: Analysis of Dopamine Receptor Expression, Location, Development, and Function in Wild-Type and Knock-Out Mice General Neuroscience |
| author_sort |
li, zhi shan |
| spelling |
Li, Zhi Shan Schmauss, Claudia Cuenca, Abigail Ratcliffe, Elyanne Gershon, Michael D. 0270-6474 1529-2401 Society for Neuroscience General Neuroscience http://dx.doi.org/10.1523/jneurosci.4720-05.2006 <jats:p>Dopaminergic neurons are present in both plexuses of the murine bowel and are upregulated after extrinsic denervation but play unknown roles in enteric nervous system (ENS) physiology. Transcripts encoding dopamine (DA) receptors D<jats:sub>1</jats:sub>–D<jats:sub>5</jats:sub>were analyzed by reverse transcription-PCR in stomach ≈ duodenum ≈ ileum ≈ proximal ≫ distal colon. Dissected muscle and myenteric plexus contained transcripts encoding D<jats:sub>1</jats:sub>–D<jats:sub>3</jats:sub>and D<jats:sub>5</jats:sub>, whereas mucosa contained D<jats:sub>1</jats:sub>and D<jats:sub>3</jats:sub>–D<jats:sub>5</jats:sub>. D<jats:sub>1</jats:sub>–D<jats:sub>5</jats:sub>expression began in fetal gut [embryonic day 10 (E10)], before the appearance of neurons (E12), and was sustained without developmental regulation through postnatal day 1.<jats:italic>In situ</jats:italic>hybridization revealed that subsets of submucosal and myenteric neurons contained mRNA encoding D<jats:sub>2</jats:sub>or D<jats:sub>3</jats:sub>. Immunoblots confirmed that D<jats:sub>1</jats:sub>, D<jats:sub>2</jats:sub>, and D<jats:sub>5</jats:sub>receptor proteins were present from stomach through distal colon. Subsets of submucosal and myenteric neurons were also D<jats:sub>1</jats:sub>, D<jats:sub>2</jats:sub>, or D<jats:sub>3</jats:sub>immunoreactive. When double labeled by<jats:italic>in situ</jats:italic>hybridization, these neurons contained mRNA encoding the respective receptors. Total gastrointestinal transit time (TGTT) and colonic transit time (CTT) were measured in mice lacking D<jats:sub>2</jats:sub>, D<jats:sub>3</jats:sub>, or D<jats:sub>2</jats:sub>plus D<jats:sub>3</jats:sub>. Both TGTT and CTT were decreased significantly (motility increased) in D<jats:sub>2</jats:sub>and D<jats:sub>2</jats:sub>plus D<jats:sub>3</jats:sub>, but not D<jats:sub>3</jats:sub>, knock-out animals. Mice lacking D<jats:sub>2</jats:sub>and D<jats:sub>2</jats:sub>plus D<jats:sub>3</jats:sub>but not D<jats:sub>3</jats:sub>were smaller than wild-type littermates, yet ate significantly more and had greater stool frequency, water content, and mass. Because motility is abnormal when D<jats:sub>2</jats:sub>is absent, the net inhibitory DA effect on motility is physiologically significant. The early expression of DA receptors is also consistent with the possibility that DA affects ENS development.</jats:p> Physiological Modulation of Intestinal Motility by Enteric Dopaminergic Neurons and the D<sub>2</sub>Receptor: Analysis of Dopamine Receptor Expression, Location, Development, and Function in Wild-Type and Knock-Out Mice The Journal of Neuroscience |
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Society for Neuroscience, 2006 |
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Society for Neuroscience, 2006 |
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2006 |
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Society for Neuroscience |
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ai |
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The Journal of Neuroscience |
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49 |
| title |
Physiological Modulation of Intestinal Motility by Enteric Dopaminergic Neurons and the D2Receptor: Analysis of Dopamine Receptor Expression, Location, Development, and Function in Wild-Type and Knock-Out Mice |
| title_unstemmed |
Physiological Modulation of Intestinal Motility by Enteric Dopaminergic Neurons and the D2Receptor: Analysis of Dopamine Receptor Expression, Location, Development, and Function in Wild-Type and Knock-Out Mice |
| title_full |
Physiological Modulation of Intestinal Motility by Enteric Dopaminergic Neurons and the D2Receptor: Analysis of Dopamine Receptor Expression, Location, Development, and Function in Wild-Type and Knock-Out Mice |
| title_fullStr |
Physiological Modulation of Intestinal Motility by Enteric Dopaminergic Neurons and the D2Receptor: Analysis of Dopamine Receptor Expression, Location, Development, and Function in Wild-Type and Knock-Out Mice |
| title_full_unstemmed |
Physiological Modulation of Intestinal Motility by Enteric Dopaminergic Neurons and the D2Receptor: Analysis of Dopamine Receptor Expression, Location, Development, and Function in Wild-Type and Knock-Out Mice |
| title_short |
Physiological Modulation of Intestinal Motility by Enteric Dopaminergic Neurons and the D2Receptor: Analysis of Dopamine Receptor Expression, Location, Development, and Function in Wild-Type and Knock-Out Mice |
| title_sort |
physiological modulation of intestinal motility by enteric dopaminergic neurons and the d<sub>2</sub>receptor: analysis of dopamine receptor expression, location, development, and function in wild-type and knock-out mice |
| topic |
General Neuroscience |
| url |
http://dx.doi.org/10.1523/jneurosci.4720-05.2006 |
| publishDate |
2006 |
| physical |
2798-2807 |
| description |
<jats:p>Dopaminergic neurons are present in both plexuses of the murine bowel and are upregulated after extrinsic denervation but play unknown roles in enteric nervous system (ENS) physiology. Transcripts encoding dopamine (DA) receptors D<jats:sub>1</jats:sub>–D<jats:sub>5</jats:sub>were analyzed by reverse transcription-PCR in stomach ≈ duodenum ≈ ileum ≈ proximal ≫ distal colon. Dissected muscle and myenteric plexus contained transcripts encoding D<jats:sub>1</jats:sub>–D<jats:sub>3</jats:sub>and D<jats:sub>5</jats:sub>, whereas mucosa contained D<jats:sub>1</jats:sub>and D<jats:sub>3</jats:sub>–D<jats:sub>5</jats:sub>. D<jats:sub>1</jats:sub>–D<jats:sub>5</jats:sub>expression began in fetal gut [embryonic day 10 (E10)], before the appearance of neurons (E12), and was sustained without developmental regulation through postnatal day 1.<jats:italic>In situ</jats:italic>hybridization revealed that subsets of submucosal and myenteric neurons contained mRNA encoding D<jats:sub>2</jats:sub>or D<jats:sub>3</jats:sub>. Immunoblots confirmed that D<jats:sub>1</jats:sub>, D<jats:sub>2</jats:sub>, and D<jats:sub>5</jats:sub>receptor proteins were present from stomach through distal colon. Subsets of submucosal and myenteric neurons were also D<jats:sub>1</jats:sub>, D<jats:sub>2</jats:sub>, or D<jats:sub>3</jats:sub>immunoreactive. When double labeled by<jats:italic>in situ</jats:italic>hybridization, these neurons contained mRNA encoding the respective receptors. Total gastrointestinal transit time (TGTT) and colonic transit time (CTT) were measured in mice lacking D<jats:sub>2</jats:sub>, D<jats:sub>3</jats:sub>, or D<jats:sub>2</jats:sub>plus D<jats:sub>3</jats:sub>. Both TGTT and CTT were decreased significantly (motility increased) in D<jats:sub>2</jats:sub>and D<jats:sub>2</jats:sub>plus D<jats:sub>3</jats:sub>, but not D<jats:sub>3</jats:sub>, knock-out animals. Mice lacking D<jats:sub>2</jats:sub>and D<jats:sub>2</jats:sub>plus D<jats:sub>3</jats:sub>but not D<jats:sub>3</jats:sub>were smaller than wild-type littermates, yet ate significantly more and had greater stool frequency, water content, and mass. Because motility is abnormal when D<jats:sub>2</jats:sub>is absent, the net inhibitory DA effect on motility is physiologically significant. The early expression of DA receptors is also consistent with the possibility that DA affects ENS development.</jats:p> |
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| description | <jats:p>Dopaminergic neurons are present in both plexuses of the murine bowel and are upregulated after extrinsic denervation but play unknown roles in enteric nervous system (ENS) physiology. Transcripts encoding dopamine (DA) receptors D<jats:sub>1</jats:sub>–D<jats:sub>5</jats:sub>were analyzed by reverse transcription-PCR in stomach ≈ duodenum ≈ ileum ≈ proximal ≫ distal colon. Dissected muscle and myenteric plexus contained transcripts encoding D<jats:sub>1</jats:sub>–D<jats:sub>3</jats:sub>and D<jats:sub>5</jats:sub>, whereas mucosa contained D<jats:sub>1</jats:sub>and D<jats:sub>3</jats:sub>–D<jats:sub>5</jats:sub>. D<jats:sub>1</jats:sub>–D<jats:sub>5</jats:sub>expression began in fetal gut [embryonic day 10 (E10)], before the appearance of neurons (E12), and was sustained without developmental regulation through postnatal day 1.<jats:italic>In situ</jats:italic>hybridization revealed that subsets of submucosal and myenteric neurons contained mRNA encoding D<jats:sub>2</jats:sub>or D<jats:sub>3</jats:sub>. Immunoblots confirmed that D<jats:sub>1</jats:sub>, D<jats:sub>2</jats:sub>, and D<jats:sub>5</jats:sub>receptor proteins were present from stomach through distal colon. Subsets of submucosal and myenteric neurons were also D<jats:sub>1</jats:sub>, D<jats:sub>2</jats:sub>, or D<jats:sub>3</jats:sub>immunoreactive. When double labeled by<jats:italic>in situ</jats:italic>hybridization, these neurons contained mRNA encoding the respective receptors. Total gastrointestinal transit time (TGTT) and colonic transit time (CTT) were measured in mice lacking D<jats:sub>2</jats:sub>, D<jats:sub>3</jats:sub>, or D<jats:sub>2</jats:sub>plus D<jats:sub>3</jats:sub>. Both TGTT and CTT were decreased significantly (motility increased) in D<jats:sub>2</jats:sub>and D<jats:sub>2</jats:sub>plus D<jats:sub>3</jats:sub>, but not D<jats:sub>3</jats:sub>, knock-out animals. Mice lacking D<jats:sub>2</jats:sub>and D<jats:sub>2</jats:sub>plus D<jats:sub>3</jats:sub>but not D<jats:sub>3</jats:sub>were smaller than wild-type littermates, yet ate significantly more and had greater stool frequency, water content, and mass. Because motility is abnormal when D<jats:sub>2</jats:sub>is absent, the net inhibitory DA effect on motility is physiologically significant. The early expression of DA receptors is also consistent with the possibility that DA affects ENS development.</jats:p> |
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| spelling | Li, Zhi Shan Schmauss, Claudia Cuenca, Abigail Ratcliffe, Elyanne Gershon, Michael D. 0270-6474 1529-2401 Society for Neuroscience General Neuroscience http://dx.doi.org/10.1523/jneurosci.4720-05.2006 <jats:p>Dopaminergic neurons are present in both plexuses of the murine bowel and are upregulated after extrinsic denervation but play unknown roles in enteric nervous system (ENS) physiology. Transcripts encoding dopamine (DA) receptors D<jats:sub>1</jats:sub>–D<jats:sub>5</jats:sub>were analyzed by reverse transcription-PCR in stomach ≈ duodenum ≈ ileum ≈ proximal ≫ distal colon. Dissected muscle and myenteric plexus contained transcripts encoding D<jats:sub>1</jats:sub>–D<jats:sub>3</jats:sub>and D<jats:sub>5</jats:sub>, whereas mucosa contained D<jats:sub>1</jats:sub>and D<jats:sub>3</jats:sub>–D<jats:sub>5</jats:sub>. D<jats:sub>1</jats:sub>–D<jats:sub>5</jats:sub>expression began in fetal gut [embryonic day 10 (E10)], before the appearance of neurons (E12), and was sustained without developmental regulation through postnatal day 1.<jats:italic>In situ</jats:italic>hybridization revealed that subsets of submucosal and myenteric neurons contained mRNA encoding D<jats:sub>2</jats:sub>or D<jats:sub>3</jats:sub>. Immunoblots confirmed that D<jats:sub>1</jats:sub>, D<jats:sub>2</jats:sub>, and D<jats:sub>5</jats:sub>receptor proteins were present from stomach through distal colon. Subsets of submucosal and myenteric neurons were also D<jats:sub>1</jats:sub>, D<jats:sub>2</jats:sub>, or D<jats:sub>3</jats:sub>immunoreactive. When double labeled by<jats:italic>in situ</jats:italic>hybridization, these neurons contained mRNA encoding the respective receptors. Total gastrointestinal transit time (TGTT) and colonic transit time (CTT) were measured in mice lacking D<jats:sub>2</jats:sub>, D<jats:sub>3</jats:sub>, or D<jats:sub>2</jats:sub>plus D<jats:sub>3</jats:sub>. Both TGTT and CTT were decreased significantly (motility increased) in D<jats:sub>2</jats:sub>and D<jats:sub>2</jats:sub>plus D<jats:sub>3</jats:sub>, but not D<jats:sub>3</jats:sub>, knock-out animals. Mice lacking D<jats:sub>2</jats:sub>and D<jats:sub>2</jats:sub>plus D<jats:sub>3</jats:sub>but not D<jats:sub>3</jats:sub>were smaller than wild-type littermates, yet ate significantly more and had greater stool frequency, water content, and mass. Because motility is abnormal when D<jats:sub>2</jats:sub>is absent, the net inhibitory DA effect on motility is physiologically significant. The early expression of DA receptors is also consistent with the possibility that DA affects ENS development.</jats:p> Physiological Modulation of Intestinal Motility by Enteric Dopaminergic Neurons and the D<sub>2</sub>Receptor: Analysis of Dopamine Receptor Expression, Location, Development, and Function in Wild-Type and Knock-Out Mice The Journal of Neuroscience |
| spellingShingle | Li, Zhi Shan, Schmauss, Claudia, Cuenca, Abigail, Ratcliffe, Elyanne, Gershon, Michael D., The Journal of Neuroscience, Physiological Modulation of Intestinal Motility by Enteric Dopaminergic Neurons and the D2Receptor: Analysis of Dopamine Receptor Expression, Location, Development, and Function in Wild-Type and Knock-Out Mice, General Neuroscience |
| title | Physiological Modulation of Intestinal Motility by Enteric Dopaminergic Neurons and the D2Receptor: Analysis of Dopamine Receptor Expression, Location, Development, and Function in Wild-Type and Knock-Out Mice |
| title_full | Physiological Modulation of Intestinal Motility by Enteric Dopaminergic Neurons and the D2Receptor: Analysis of Dopamine Receptor Expression, Location, Development, and Function in Wild-Type and Knock-Out Mice |
| title_fullStr | Physiological Modulation of Intestinal Motility by Enteric Dopaminergic Neurons and the D2Receptor: Analysis of Dopamine Receptor Expression, Location, Development, and Function in Wild-Type and Knock-Out Mice |
| title_full_unstemmed | Physiological Modulation of Intestinal Motility by Enteric Dopaminergic Neurons and the D2Receptor: Analysis of Dopamine Receptor Expression, Location, Development, and Function in Wild-Type and Knock-Out Mice |
| title_short | Physiological Modulation of Intestinal Motility by Enteric Dopaminergic Neurons and the D2Receptor: Analysis of Dopamine Receptor Expression, Location, Development, and Function in Wild-Type and Knock-Out Mice |
| title_sort | physiological modulation of intestinal motility by enteric dopaminergic neurons and the d<sub>2</sub>receptor: analysis of dopamine receptor expression, location, development, and function in wild-type and knock-out mice |
| title_unstemmed | Physiological Modulation of Intestinal Motility by Enteric Dopaminergic Neurons and the D2Receptor: Analysis of Dopamine Receptor Expression, Location, Development, and Function in Wild-Type and Knock-Out Mice |
| topic | General Neuroscience |
| url | http://dx.doi.org/10.1523/jneurosci.4720-05.2006 |