Author
Listed:
- Arpan Parichha
(Tata Institute of Fundamental Research)
- Varun Suresh
(Tata Institute of Fundamental Research)
- Mallika Chatterjee
(Tata Institute of Fundamental Research
Amity University)
- Aditya Kshirsagar
(Weizmann Institute of Science)
- Lihi Ben-Reuven
(Weizmann Institute of Science)
- Tsviya Olender
(Weizmann Institute of Science)
- M. Mark Taketo
(Kyoto University (Yoshida-Konoé-Cho, Sakyo))
- Velena Radosevic
(School of Medicine University of Zagreb
University Hospital Centre Zagreb, Department of Gynecology and Department of Pathology and Cytology)
- Mihaela Bobic-Rasonja
(School of Medicine University of Zagreb
University Hospital Centre Zagreb, Department of Gynecology and Department of Pathology and Cytology)
- Sara Trnski
(School of Medicine University of Zagreb)
- Michael J. Holtzman
(Washington University)
- Nataša Jovanov-Milosevic
(School of Medicine University of Zagreb
University Hospital Centre Zagreb, Department of Gynecology and Department of Pathology and Cytology)
- Orly Reiner
(Weizmann Institute of Science)
- Shubha Tole
(Tata Institute of Fundamental Research)
Abstract
The choroid plexus secretes cerebrospinal fluid and is critical for the development and function of the brain. In the telencephalon, the choroid plexus epithelium arises from the Wnt- expressing cortical hem. Canonical Wnt signaling pathway molecules such as nuclear β-CATENIN are expressed in the mouse and human embryonic choroid plexus epithelium indicating that this pathway is active. Point mutations in human β-CATENIN are known to result in the constitutive activation of canonical Wnt signaling. In a mouse model that recapitulates this perturbation, we report a loss of choroid plexus epithelial identity and an apparent transformation of this tissue to a neuronal identity. Aspects of this phenomenon are recapitulated in human embryonic stem cell derived organoids. The choroid plexus is also disrupted when β-Catenin is conditionally inactivated. Together, our results indicate that canonical Wnt signaling is required in a precise and regulated manner for normal choroid plexus development in the mammalian brain.
Suggested Citation
Arpan Parichha & Varun Suresh & Mallika Chatterjee & Aditya Kshirsagar & Lihi Ben-Reuven & Tsviya Olender & M. Mark Taketo & Velena Radosevic & Mihaela Bobic-Rasonja & Sara Trnski & Michael J. Holtzma, 2022.
"Constitutive activation of canonical Wnt signaling disrupts choroid plexus epithelial fate,"
Nature Communications, Nature, vol. 13(1), pages 1-20, December.
Handle:
RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-021-27602-z
DOI: 10.1038/s41467-021-27602-z
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