@article{BluemelZinkKlopockietal.2019,
  author    = {Bl{\"u}mel, Rabea and Zink, Miriam and Klopocki, Eva and Liedtke, Daniel},
  title     = {On the traces of tcf12: Investigation of the gene expression pattern during development and cranial suture patterning in zebrafish (Danio rerio)},
  series = {PLoS ONE},
  volume    = {14},
  journal   = {PLoS ONE},
  number    = {6},
  doi       = {10.1371/journal.pone.0218286},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-201428},
  pages     = {e0218286},
  year      = {2019},
  abstract  = {The transcription factor 12 (tcf12) is a basic Helix-Loop-Helix protein (bHLH) of the E-protein family, proven to play an important role in developmental processes like neurogenesis, mesoderm formation, and cranial vault development. In humans, mutations in TCF12 lead to craniosynostosis, a congenital birth disorder characterized by the premature fusion of one or several of the cranial sutures. Current research has been primarily focused on functional studies of TCF12, hence the cellular expression profile of this gene during embryonic development and early stages of ossification remains poorly understood. Here we present the establishment and detailed analysis of two transgenic tcf12:EGFP fluorescent zebrafish (Danio rerio) reporter lines. Using these transgenic lines, we analyzed the general spatiotemporal expression pattern of tcf12 during different developmental stages and put emphasis on skeletal development and cranial suture patterning. We identified robust tcf12 promoter-driven EGFP expression in the central nervous system (CNS), the heart, the pronephros, and the somites of zebrafish embryos. Additionally, expression was observed inside the muscles and bones of the viscerocranium in juvenile and adult fish. During cranial vault development, the transgenic fish show a high amount of tcf12 expressing cells at the growth fronts of the ossifying frontal and parietal bones and inside the emerging cranial sutures. Subsequently, we tested the transcriptional activity of three evolutionary conserved non-coding elements (CNEs) located in the tcf12 locus by transient transgenic assays and compared their in vivo activity to the expression pattern determined in the transgenic tcf12:EGFP lines. We could validate two of them as tcf12 enhancer elements driving specific gene expression in the CNS during embryogenesis. Our newly established transgenic lines enhance the understanding of tcf12 gene regulation and open up the possibilities for further functional investigation of these novel tcf12 enhancer elements in zebrafish.},
  language  = {en}
}
@article{JanzZinkCirnuetal.2021,
  author    = {Janz, Anna and Zink, Miriam and Cirnu, Alexandra and Hartleb, Annika and Albrecht, Christina and Rost, Simone and Klopocki, Eva and G{\"u}nther, Katharina and Edenhofer, Frank and Erg{\"u}n, S{\"u}leyman and Gerull, Brenda},
  title     = {CRISPR/Cas9-edited PKP2 knock-out (JMUi001-A-2) and DSG2 knock-out (JMUi001-A-3) iPSC lines as an isogenic human model system for arrhythmogenic cardiomyopathy (ACM)},
  series = {Stem Cell Research},
  volume    = {53},
  journal   = {Stem Cell Research},
  doi       = {10.1016/j.scr.2021.102256},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-259846},
  pages     = {102256},
  year      = {2021},
  abstract  = {Arrhythmogenic cardiomyopathy (ACM) is characterized by fibro-fatty replacement of the myocardium, heart failure and life-threatening ventricular arrhythmias. Causal mutations were identified in genes encoding for proteins of the desmosomes, predominantly plakophilin-2 (PKP2) and desmoglein-2 (DSG2). We generated gene-edited knock-out iPSC lines for PKP2 (JMUi001-A-2) and DSG2 (JMUi001-A-3) using the CRISPR/Cas9 system in a healthy control iPSC background (JMUi001A). Stem cell-like morphology, robust expression of pluripotency markers, embryoid body formation and normal karyotypes confirmed the generation of high quality iPSCs to provide a novel isogenic human in vitro model system mimicking ACM when differentiated into cardiomyocytes.},
  language  = {en}
}