Počet záznamů: 1
Time Course of Spinal Doublecortin Expression in Developing Rat and Porcine Spinal Cord: Implication in In Vivo Neural Precursor Grafting Studies
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SYSNO ASEP 0439410 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Time Course of Spinal Doublecortin Expression in Developing Rat and Porcine Spinal Cord: Implication in In Vivo Neural Precursor Grafting Studies Tvůrce(i) Juhásová, Jana (UZFG-Y) RID, ORCID
Juhás, Štefan (UZFG-Y) RID, ORCID
Hruška-Plocháň, M. (US)
Doležalová, D. (CZ)
Holubová, Monika (UZFG-Y)
Strnádel, Ján (UZFG-Y) RID
Marsala, S. (US)
Motlík, Jan (UZFG-Y) RID, ORCID
Marsala, M. (US)Zdroj.dok. Cellular and Molecular Neurobiology. - : Springer - ISSN 0272-4340
Roč. 35, č. 1 (2015), s. 57-70Poč.str. 14 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova doublecortin ; spinal cord development ; spinal neural precursor grafting ; minipig ; rat ; GFAP Vědní obor RIV EB - Genetika a molekulární biologie CEP TA01011466 GA TA ČR - Technologická agentura ČR ED2.1.00/03.0124 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UZFG-Y - RVO:67985904 UT WOS 000347884500007 EID SCOPUS 84916912418 DOI https://doi.org/10.1007/s10571-014-0145-7 Anotace Expression of doublecortin (DCX), a 43–53 kDa microtubule binding protein, is frequently used as (i) an early neuronal marker to identify the stage of neuronal maturation of in vivo grafted neuronal precursors (NSCs), and (ii) a neuronal fate marker transiently expressed by immature neurons during development. Reliable identification of the origin of DCX-immunoreactive cells (i.e., host vs. graft) requires detailed spatial and temporal mapping of endogenous DCX expression at graft-targeted brain or spinal cord regions. Accordingly, in the present study, we analyzed (i) the time course of DCX expression in pre- and postnatal rat and porcine spinal cord, and (ii) the DCX expression in spinally grafted porcine-induced pluripotent stem cells (iPS)-derived NSCs and human embryonic stem cell (ES)-derived NSCs. In addition, complementary temporospatial GFAP expression study in porcine spinal cord was also performed. In 21-day-old rat fetuses, an intense DCX immunoreactivity distributed between the dorsal horn (DH) and ventral horn was seen and was still present in the DH neurons on postnatal day 20. In animals older than 8 weeks, no DCX immunoreactivity was seen at any spinal cord laminae. In contrast to rat, in porcine spinal cord (gestational period 113–114 days), DCX was only expressed during the pre-natal period (up to 100 days) but was no longer present in newborn piglets or in adult animals. Immunohistochemical analysis was confirmed with a comparable expression profile by western blot analysis. Contrary, the expression of porcine GFAP started within 70–80 days of the pre-natal period. Spinally grafted porcine iPS-NSCs and human ES-NSCs showed clear DCX expression at 3–4 weeks postgrafting. These data indicate that in spinal grafting studies which employ postnatal or adult porcine models, the expression of DCX can be used as a reliable marker of grafted neurons. In contrast, if grafted neurons are to be analyzed during the first 4 postnatal weeks in the rat spinal cord, additional markers or grafted cell-specific labeling techniques need to be employed to reliably identify grafted early postmitotic neurons and to differentiate the DCX expression from the neurons of the host. Pracoviště Ústav živočišné fyziologie a genetiky Kontakt Jana Zásmětová, knihovna@iapg.cas.cz, Tel.: 315 639 554 Rok sběru 2015
Počet záznamů: 1