دورية أكاديمية
TCF7L2 regulates postmitotic differentiation programmes and excitability patterns in the thalamus
| العنوان: | TCF7L2 regulates postmitotic differentiation programmes and excitability patterns in the thalamus |
|---|---|
| المؤلفون: | Lipiec, Marcin Andrzej, Bem, Joanna, Kozinski, Kamil, Chakraborty, Chaitali, Urban-Ciecko, Joanna, Zajkowski, Tomasz, Dabrowski, Michał, Szewczyk, Łukasz Mateusz, Toval, Angel, Ferran, JoséLuis, Nagalski, Andrzej, Wisniewska, Marta Barbara |
| بيانات النشر: | The Company of Biologists Ltd |
| سنة النشر: | 2020 |
| المجموعة: | HighWire Press (Stanford University) |
| مصطلحات موضوعية: | RESEARCH ARTICLE |
| الوصف: | Neuronal phenotypes are controlled by terminal selector transcription factors in invertebrates, but only a few examples of such regulators have been provided in vertebrates. We hypothesised that TCF7L2 regulates different stages of postmitotic differentiation in the thalamus, and functions as a thalamic terminal selector. To investigate this hypothesis, we used complete and conditional knockouts of Tcf7l2 in mice. The connectivity and clustering of neurons were disrupted in the thalamo-habenular region in Tcf7l2−/− embryos. The expression of subregional thalamic and habenular transcription factors was lost and region-specific cell migration and axon guidance genes were downregulated. In mice with a postnatal Tcf7l2 knockout, the induction of genes that confer thalamic terminal electrophysiological features was impaired. Many of these genes proved to be direct targets of TCF7L2. The role of TCF7L2 in terminal selection was functionally confirmed by impaired firing modes in thalamic neurons in the mutant mice. These data corroborate the existence of master regulators in the vertebrate brain that control stage-specific genetic programmes and regional subroutines, maintain regional transcriptional network during embryonic development, and induce terminal selection postnatally. |
| نوع الوثيقة: | text |
| وصف الملف: | text/html |
| اللغة: | English |
| العلاقة: | http://dev.biologists.org/cgi/content/short/147/16/dev190181Test; http://dx.doi.org/10.1242/dev.190181Test |
| DOI: | 10.1242/dev.190181 |
| الإتاحة: | https://doi.org/10.1242/dev.190181Test http://dev.biologists.org/cgi/content/short/147/16/dev190181Test |
| حقوق: | Copyright (C) 2020, Company of Biologists |
| رقم الانضمام: | edsbas.7E506006 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1242/dev.190181 |
|---|