TY - JOUR
T1 - Tec-1 kinase negatively regulates regenerative neurogenesis in planarians
AU - Karge, Alexander
AU - Bonar, Nicolle A.
AU - Wood, Scott
AU - Petersen, Christian P.
N1 - Publisher Copyright:
© Copyright Karge et al.
PY - 2020/1
Y1 - 2020/1
N2 - Negative regulators of adult neurogenesis are of particular interest as targets to enhance neuronal repair, but few have yet been identified. Planarians can regenerate their entire CNS using pluripotent adult stem cells, and this process is robustly regulated to ensure that new neurons are produced in proper abundance. Using a high-throughput pipeline to quantify brain chemosensory neurons, we identify the conserved tyrosine kinase tec-1 as a negative regulator of planarian neuronal regeneration. tec-1RNAi increased the abundance of several CNS and PNS neuron subtypes regenerated or maintained through homeostasis, without affecting body patterning or non-neural cells. Experiments using TUNEL, BrdU, progenitor labeling, and stem cell elimination during regeneration indicate tec-1 limits the survival of newly differentiated neurons. In vertebrates, the Tec kinase family has been studied extensively for roles in immune function, and our results identify a novel role for tec-1 as negative regulator of planarian adult neurogenesis.
AB - Negative regulators of adult neurogenesis are of particular interest as targets to enhance neuronal repair, but few have yet been identified. Planarians can regenerate their entire CNS using pluripotent adult stem cells, and this process is robustly regulated to ensure that new neurons are produced in proper abundance. Using a high-throughput pipeline to quantify brain chemosensory neurons, we identify the conserved tyrosine kinase tec-1 as a negative regulator of planarian neuronal regeneration. tec-1RNAi increased the abundance of several CNS and PNS neuron subtypes regenerated or maintained through homeostasis, without affecting body patterning or non-neural cells. Experiments using TUNEL, BrdU, progenitor labeling, and stem cell elimination during regeneration indicate tec-1 limits the survival of newly differentiated neurons. In vertebrates, the Tec kinase family has been studied extensively for roles in immune function, and our results identify a novel role for tec-1 as negative regulator of planarian adult neurogenesis.
UR - http://www.scopus.com/inward/record.url?scp=85078600377&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85078600377&partnerID=8YFLogxK
U2 - 10.7554/eLife.47293
DO - 10.7554/eLife.47293
M3 - Article
C2 - 31958270
AN - SCOPUS:85078600377
SN - 2050-084X
VL - 9
JO - eLife
JF - eLife
M1 - e47293
ER -