Association of protein distribution and gene expression revealed by positron emission tomography and postmortem gene expression in the dopaminergic system of the human brain
© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature..
PURPOSE: The topological distribution of dopamine-related proteins is determined by gene transcription and subsequent regulations. Recent research strategies integrating positron emission tomography with a transcriptome atlas have opened new opportunities to understand the influence of regulation after transcription on protein distribution. Previous studies have reported that messenger (m)-RNA expression levels spatially correlate with the density maps of serotonin receptors but not with those of transporters. This discrepancy may be due to differences in regulation after transcription between presynaptic and postsynaptic proteins, which have not been studied in the dopaminergic system. Here, we focused on dopamine D1 and D2/D3 receptors and dopamine transporters and investigated their region-wise relationship between mRNA expression and protein distribution.
METHODS: We examined the region-wise correlation between regional binding potentials of the target region relative to that of non-displaceable tissue (BPND) values of 11C-SCH-23390 and mRNA expression levels of dopamine D1 receptors (D1R); regional BPND values of 11C-FLB-457 and mRNA expression levels of dopamine D2/D3 receptors (D2/D3R); and regional total distribution volume (VT) values of 18F-FE-PE2I and mRNA expression levels of dopamine transporters (DAT) using Spearman's rank correlation.
RESULTS: We found significant positive correlations between regional BPND values of 11C-SCH-23390 and the mRNA expression levels of D1R (r = 0.769, p = 0.0021). Similar to D1R, regional BPND values of 11C-FLB-457 positively correlated with the mRNA expression levels of D2R (r = 0.809, p = 0.0151) but not with those of D3R (r = 0.413, p = 0.3095). In contrast to D1R and D2R, no significant correlation between VT values of 18F-FE-PE2I and mRNA expression levels of DAT was observed (r = -0.5934, p = 0.140).
CONCLUSION: We found a region-wise correlation between the mRNA expression levels of dopamine D1 and D2 receptors and their respective protein distributions. However, we found no region-wise correlation between the mRNA expression levels of dopamine transporters and their protein distributions, indicating different regulatory mechanisms for the localization of pre- and postsynaptic proteins. These results provide a broader understanding of the application of the transcriptome atlas to neuroimaging studies of the dopaminergic nervous system.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:50 |
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| Enthalten in: |
European journal of nuclear medicine and molecular imaging - 50(2023), 13 vom: 01. Nov., Seite 3928-3936 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Yamamoto, Yasuharu [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 30.10.2023 Date Revised 02.01.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1007/s00259-023-06390-2 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM36081042X |
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| 100 | 1 | |a Yamamoto, Yasuharu |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Association of protein distribution and gene expression revealed by positron emission tomography and postmortem gene expression in the dopaminergic system of the human brain |
| 264 | 1 | |c 2023 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
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| 500 | |a Date Completed 30.10.2023 | ||
| 500 | |a Date Revised 02.01.2024 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature. | ||
| 520 | |a PURPOSE: The topological distribution of dopamine-related proteins is determined by gene transcription and subsequent regulations. Recent research strategies integrating positron emission tomography with a transcriptome atlas have opened new opportunities to understand the influence of regulation after transcription on protein distribution. Previous studies have reported that messenger (m)-RNA expression levels spatially correlate with the density maps of serotonin receptors but not with those of transporters. This discrepancy may be due to differences in regulation after transcription between presynaptic and postsynaptic proteins, which have not been studied in the dopaminergic system. Here, we focused on dopamine D1 and D2/D3 receptors and dopamine transporters and investigated their region-wise relationship between mRNA expression and protein distribution | ||
| 520 | |a METHODS: We examined the region-wise correlation between regional binding potentials of the target region relative to that of non-displaceable tissue (BPND) values of 11C-SCH-23390 and mRNA expression levels of dopamine D1 receptors (D1R); regional BPND values of 11C-FLB-457 and mRNA expression levels of dopamine D2/D3 receptors (D2/D3R); and regional total distribution volume (VT) values of 18F-FE-PE2I and mRNA expression levels of dopamine transporters (DAT) using Spearman's rank correlation | ||
| 520 | |a RESULTS: We found significant positive correlations between regional BPND values of 11C-SCH-23390 and the mRNA expression levels of D1R (r = 0.769, p = 0.0021). Similar to D1R, regional BPND values of 11C-FLB-457 positively correlated with the mRNA expression levels of D2R (r = 0.809, p = 0.0151) but not with those of D3R (r = 0.413, p = 0.3095). In contrast to D1R and D2R, no significant correlation between VT values of 18F-FE-PE2I and mRNA expression levels of DAT was observed (r = -0.5934, p = 0.140) | ||
| 520 | |a CONCLUSION: We found a region-wise correlation between the mRNA expression levels of dopamine D1 and D2 receptors and their respective protein distributions. However, we found no region-wise correlation between the mRNA expression levels of dopamine transporters and their protein distributions, indicating different regulatory mechanisms for the localization of pre- and postsynaptic proteins. These results provide a broader understanding of the application of the transcriptome atlas to neuroimaging studies of the dopaminergic nervous system | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Allen Human Brain Atlas | |
| 650 | 4 | |a Dopamine receptor | |
| 650 | 4 | |a Dopamine transporter | |
| 650 | 4 | |a Positron emission tomography | |
| 650 | 4 | |a mRNA | |
| 650 | 7 | |a Dopamine |2 NLM | |
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| 650 | 7 | |a Receptors, Dopamine D2 |2 NLM | |
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| 650 | 7 | |a Dopamine Plasma Membrane Transport Proteins |2 NLM | |
| 650 | 7 | |a RNA, Messenger |2 NLM | |
| 700 | 1 | |a Takahata, Keisuke |e verfasserin |4 aut | |
| 700 | 1 | |a Kubota, Manabu |e verfasserin |4 aut | |
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| 700 | 1 | |a Seki, Chie |e verfasserin |4 aut | |
| 700 | 1 | |a Endo, Hironobu |e verfasserin |4 aut | |
| 700 | 1 | |a Matsuoka, Kiwamu |e verfasserin |4 aut | |
| 700 | 1 | |a Tagai, Kenji |e verfasserin |4 aut | |
| 700 | 1 | |a Kimura, Yasuyuki |e verfasserin |4 aut | |
| 700 | 1 | |a Kurose, Shin |e verfasserin |4 aut | |
| 700 | 1 | |a Mimura, Masaru |e verfasserin |4 aut | |
| 700 | 1 | |a Kawamura, Kazunori |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Ming-Rong |e verfasserin |4 aut | |
| 700 | 1 | |a Higuchi, Makoto |e verfasserin |4 aut | |
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