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  Lack of FKBP51 Shapes Brain Structure and Connectivity in Male Mice

Engelhardt, C., Boulat, B., Czisch, M., & Schmidt, M. V. (2021). Lack of FKBP51 Shapes Brain Structure and Connectivity in Male Mice. JOURNAL OF MAGNETIC RESONANCE IMAGING, 53(5), 1358-1365. doi:10.1002/jmri.27439.

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アイテムのパーマリンク: https://hdl.handle.net/21.11116/0000-0008-DD1A-3 版のパーマリンク: https://hdl.handle.net/21.11116/0000-000D-827E-3
資料種別: 学術論文

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 作成者:
Engelhardt, Clara1, 著者           
Boulat, Benoit2, 著者           
Czisch, Michael2, 著者           
Schmidt, Mathias V.1, 著者           
所属:
1RG Stress Resilience, Max Planck Institute of Psychiatry, Max Planck Society, ou_2040294              
2Max Planck Institute of Psychiatry, Max Planck Society, ou_1607137              

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 要旨: Background Stress exposure as well as psychiatric disorders are often associated with abnormalities in brain structure or connectivity. The co-chaperone FK506-binding protein 51 (FKBP51) is a regulator of the stress system and is associated with a risk to develop stress-related mental illnesses.
Purpose To assess the effect of a general FKBP51 knockout on brain structure and connectivity in male mice.
Study Type Animal study.
Animal Model Two cohorts of FKBP51 knockout (51KO) and wildtype (WT) mice. The first cohort was comprised of n = 18 WT and n = 17 51KOs; second cohort n = 10 WT and n = 9 51KOs.
Field Strength/Sequence 9.4T/3D gradient echo (VBM), DTI-EPI (DTI).
Assessment Voxel-based morphometry (VBM) and diffusion tensor imaging (DTI). For VBM, all procedures were executed in SPM12. DTI: FMRIB Software Library (FSL) Tract Based Statistics (TBSS) were integrated within DTI-TK, allowing the creation of a mean FA skeleton. A voxelwise statistical analysis was applied between WT and 51KO mice.
Statistical Test Volumetric differences were collected at a threshold of P < 0.005, and only clusters surviving a familywise error correction on the cluster level (pFWE, cluster <0.05) were further considered. VBM data were analyzed using a two-sample t-test. The Threshold Free Cluster Enhancement (TFCE) method was used to derive uncorrected-P statistical results at a P-level of 0.01.
Results The structural analysis revealed two clusters of significantly larger volumes in the hypothalamus, periaqueductal gray, and dorsal raphe region of WT animals. DTI measurements, however, demonstrated statistically higher fractional anisotropy (FA) values for 51KO animals in locations including the anterior commissure, fornix, and posterior commissure/superior colliculus commissure region.
Data Conclusion This study used in vivo structural MRI and DTI to demonstrate that a lack of FKBP51 leads to alterations in brain architecture and connectivity in male mice. These findings are of particular translational relevance for our understanding of the neuroanatomy underlying the interaction of FKBP5 genetic status, stress susceptibility, and psychiatric disorders.
Level of Evidence 1
Technical Efficacy Stage 1

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 日付: 20202021
 出版の状態: 出版
 ページ: -
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 識別子(DOI, ISBNなど): ISI: 000588642800001
DOI: 10.1002/jmri.27439
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出版物 1

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出版物名: JOURNAL OF MAGNETIC RESONANCE IMAGING
種別: 学術雑誌
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出版社, 出版地: -
ページ: - 巻号: 53 (5) 通巻号: - 開始・終了ページ: 1358 - 1365 識別子(ISBN, ISSN, DOIなど): ISSN: 1053-1807