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Sun, M.* ; Ahmad, N.* ; Zhang, R.* ; Graw, J.

Crybb2 associates with Tmsb4X and is crucial for dendrite morphogenesis.

Biochem. Biophys. Res. Commun. 503, 123-130 (2018)
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Open Access Green
Dendrite morphogenesis is a complex but well-orchestrated process. Various studies reported the involvement of alteration in dendrite morphology in different brain disorders, including neuropsychiatric disorders. Initially, beta B2-crystallin (gene symbol: Crybb2/CRYBB2) has been described as a structural protein of the ocular lens. Mutations of the corresponding gene, Crybb2, lead to cataract. Recent studies in mice suggested that mutations in Crybb2 cause alterations in hippocampal morphology and function, albeit its function in hippocampal neuron development remained elusive. In the current study, we found that Crybb2 contributes to dendritogenesis in vitro and in vivo. Furthermore, screening of previous data on differential expression-arrays, we found Tmsb4X up-regulated in Crybb2 mutants mouse brain. Additionally, Tmsb4X was co-expressed with Crybb2 at actin-enriched cell ruffles. Over-expression of Tmsb4X in cultured hippocampal neurons inhibited dendritogenesis, which phenocopied Crybb2 knockdown. The current study uncovers a new function of Crybb2 in brain development, especially in dendritogenesis, and the possible interplay partner Tmsb4X involved in this process. (C) 2018 Elsevier Inc. All rights reserved.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Crybb2 ; Tmsb4x ; Dendrite ; Hippocampal Neuron; Prefrontal Cortex; Thymosin Beta-4; Proteins; Neurons; Arborization; Mechanisms; Expression
ISSN (print) / ISBN 0006-291X
e-ISSN 1090-2104
Quellenangaben Band: 503, Heft: 1, Seiten: 123-130 Artikelnummer: , Supplement: ,
Verlag Elsevier
Verlagsort 525 B St, Ste 1900, San Diego, Ca 92101-4495 Usa
Begutachtungsstatus Peer reviewed