C3-induced release of neurotrophic factors from Schwann cells - potential mechanism behind its regeneration promoting activity

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autoren

  • Astrid Rohrbeck
  • Frank Stahl
  • Markus Höltje
  • Timo Hettwer
  • Patrick Lindner
  • Sandra Hagemann
  • Andreas Pich
  • Kirsten Haastert-Talini

Organisationseinheiten

Externe Organisationen

  • Fraunhofer-Institut für Toxikologie und Experimentelle Medizin (ITEM)
  • Medizinische Hochschule Hannover (MHH)
  • Zentrum für Systemische Neurowissenschaften Hannover (ZSN)
  • Charité - Universitätsmedizin Berlin
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Seiten (von - bis)232-245
Seitenumfang14
FachzeitschriftNeurochemistry international
Jahrgang90
PublikationsstatusVeröffentlicht - 1 Nov. 2015

Abstract

Previous studies revealed a peripheral nerve regeneration (PNR)(1) promoting activity of Clostridium botulinum C3(2) exoenzyme or a 26(mer) C-terminal peptide fragment covering amino acids 156-181 (C3(156-181)),(3) when delivered as one-time injection at the lesion site. The current study was performed to 1) investigate if prolonged availability of C3 and C3(156-181) at the lesion site can further enhance PNR in vivo and to 2) elucidate effects of C3 and C3(156-181) on Schwann cells (SCs)(4)in vitro. For in vivo studies, 10 mm adult rat sciatic nerve gaps were reconstructed with the epineurial pouch technique or autologous nerve grafts. Epineurial pouches were filled with a hydrogel containing i) vehicle, ii) 40 μM C3 or iii) 40 μM C3(156-181). Sensory and motor functional recovery was monitored over 12 weeks and the outcome of PNR further analyzed by nerve morphometry. In vitro, we compared gene expression profiles (microarray analysis) and neurotrophic factor expression (western blot analysis) of untreated rat neonatal SCs with those treated with C3 or C3(156-181) for 72 h. Effects on neurotrophic factor expression levels were proven in adult human SCs. Unexpectedly, prolonged delivery of C3 and C3(156-181) at the lesion site did not increase the outcome of PNR. Regarding the potential mechanism underlying their previously detected PNR promoting action, however, 6 genes were found to be commonly altered in SCs upon treatment with C3 or C3(156-181). We demonstrate significant down-regulation of genes involved in glutamate uptake (Eaac1,(5)Grin2a(6)) and changes in neurotrophic factor expression (increase of FGF-2(7) and decrease of NGF(8)). Our microarray-based expression profiling revealed novel C3-regulated genes in SCs possibly involved in the axonotrophic (regeneration promoting) effects of C3 and C3(156-181). Detection of altered neurotrophic factor expression by C3 or C3(156-181) treated primary neonatal rat SCs and primary adult human SCs supports this hypothesis.

ASJC Scopus Sachgebiete

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C3-induced release of neurotrophic factors from Schwann cells - potential mechanism behind its regeneration promoting activity. / Rohrbeck, Astrid; Stahl, Frank; Höltje, Markus et al.
in: Neurochemistry international, Jahrgang 90, 01.11.2015, S. 232-245.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Rohrbeck A, Stahl F, Höltje M, Hettwer T, Lindner P, Hagemann S et al. C3-induced release of neurotrophic factors from Schwann cells - potential mechanism behind its regeneration promoting activity. Neurochemistry international. 2015 Nov 1;90:232-245. doi: 10.1016/j.neuint.2015.09.007
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title = "C3-induced release of neurotrophic factors from Schwann cells - potential mechanism behind its regeneration promoting activity",
abstract = "Previous studies revealed a peripheral nerve regeneration (PNR)(1) promoting activity of Clostridium botulinum C3(2) exoenzyme or a 26(mer) C-terminal peptide fragment covering amino acids 156-181 (C3(156-181)),(3) when delivered as one-time injection at the lesion site. The current study was performed to 1) investigate if prolonged availability of C3 and C3(156-181) at the lesion site can further enhance PNR in vivo and to 2) elucidate effects of C3 and C3(156-181) on Schwann cells (SCs)(4)in vitro. For in vivo studies, 10 mm adult rat sciatic nerve gaps were reconstructed with the epineurial pouch technique or autologous nerve grafts. Epineurial pouches were filled with a hydrogel containing i) vehicle, ii) 40 μM C3 or iii) 40 μM C3(156-181). Sensory and motor functional recovery was monitored over 12 weeks and the outcome of PNR further analyzed by nerve morphometry. In vitro, we compared gene expression profiles (microarray analysis) and neurotrophic factor expression (western blot analysis) of untreated rat neonatal SCs with those treated with C3 or C3(156-181) for 72 h. Effects on neurotrophic factor expression levels were proven in adult human SCs. Unexpectedly, prolonged delivery of C3 and C3(156-181) at the lesion site did not increase the outcome of PNR. Regarding the potential mechanism underlying their previously detected PNR promoting action, however, 6 genes were found to be commonly altered in SCs upon treatment with C3 or C3(156-181). We demonstrate significant down-regulation of genes involved in glutamate uptake (Eaac1,(5)Grin2a(6)) and changes in neurotrophic factor expression (increase of FGF-2(7) and decrease of NGF(8)). Our microarray-based expression profiling revealed novel C3-regulated genes in SCs possibly involved in the axonotrophic (regeneration promoting) effects of C3 and C3(156-181). Detection of altered neurotrophic factor expression by C3 or C3(156-181) treated primary neonatal rat SCs and primary adult human SCs supports this hypothesis. ",
keywords = "ADP Ribose Transferases/pharmacology, Animals, Botulinum Toxins/pharmacology, Brain-Derived Neurotrophic Factor/metabolism, Cells, Cultured, Coculture Techniques, Female, Glial Cell Line-Derived Neurotrophic Factor, Mice, Nerve Growth Factor/metabolism, Nerve Regeneration/drug effects, Rats, Schwann Cells/cytology, Sciatic Nerve/drug effects, Schwann cells, Gene expression, Microarray, C3 exoenzyme, Peripheral nerve regeneration, Mass spectrometry",
author = "Astrid Rohrbeck and Frank Stahl and Markus H{\"o}ltje and Timo Hettwer and Patrick Lindner and Sandra Hagemann and Andreas Pich and Kirsten Haastert-Talini",
note = "Funding information: The authors would like to thank Silvana Taubeler-Gerling, Maike Wesemann, Jennifer Metzen of the Institute of Neuroanatomy for their excellent technical assistance. This study was supported by DFG grant to MH ( HO 3249/2-1 ).",
year = "2015",
month = nov,
day = "1",
doi = "10.1016/j.neuint.2015.09.007",
language = "English",
volume = "90",
pages = "232--245",
journal = "Neurochemistry international",
issn = "0197-0186",
publisher = "Elsevier Ltd.",

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Download

TY - JOUR

T1 - C3-induced release of neurotrophic factors from Schwann cells - potential mechanism behind its regeneration promoting activity

AU - Rohrbeck, Astrid

AU - Stahl, Frank

AU - Höltje, Markus

AU - Hettwer, Timo

AU - Lindner, Patrick

AU - Hagemann, Sandra

AU - Pich, Andreas

AU - Haastert-Talini, Kirsten

N1 - Funding information: The authors would like to thank Silvana Taubeler-Gerling, Maike Wesemann, Jennifer Metzen of the Institute of Neuroanatomy for their excellent technical assistance. This study was supported by DFG grant to MH ( HO 3249/2-1 ).

PY - 2015/11/1

Y1 - 2015/11/1

N2 - Previous studies revealed a peripheral nerve regeneration (PNR)(1) promoting activity of Clostridium botulinum C3(2) exoenzyme or a 26(mer) C-terminal peptide fragment covering amino acids 156-181 (C3(156-181)),(3) when delivered as one-time injection at the lesion site. The current study was performed to 1) investigate if prolonged availability of C3 and C3(156-181) at the lesion site can further enhance PNR in vivo and to 2) elucidate effects of C3 and C3(156-181) on Schwann cells (SCs)(4)in vitro. For in vivo studies, 10 mm adult rat sciatic nerve gaps were reconstructed with the epineurial pouch technique or autologous nerve grafts. Epineurial pouches were filled with a hydrogel containing i) vehicle, ii) 40 μM C3 or iii) 40 μM C3(156-181). Sensory and motor functional recovery was monitored over 12 weeks and the outcome of PNR further analyzed by nerve morphometry. In vitro, we compared gene expression profiles (microarray analysis) and neurotrophic factor expression (western blot analysis) of untreated rat neonatal SCs with those treated with C3 or C3(156-181) for 72 h. Effects on neurotrophic factor expression levels were proven in adult human SCs. Unexpectedly, prolonged delivery of C3 and C3(156-181) at the lesion site did not increase the outcome of PNR. Regarding the potential mechanism underlying their previously detected PNR promoting action, however, 6 genes were found to be commonly altered in SCs upon treatment with C3 or C3(156-181). We demonstrate significant down-regulation of genes involved in glutamate uptake (Eaac1,(5)Grin2a(6)) and changes in neurotrophic factor expression (increase of FGF-2(7) and decrease of NGF(8)). Our microarray-based expression profiling revealed novel C3-regulated genes in SCs possibly involved in the axonotrophic (regeneration promoting) effects of C3 and C3(156-181). Detection of altered neurotrophic factor expression by C3 or C3(156-181) treated primary neonatal rat SCs and primary adult human SCs supports this hypothesis.

AB - Previous studies revealed a peripheral nerve regeneration (PNR)(1) promoting activity of Clostridium botulinum C3(2) exoenzyme or a 26(mer) C-terminal peptide fragment covering amino acids 156-181 (C3(156-181)),(3) when delivered as one-time injection at the lesion site. The current study was performed to 1) investigate if prolonged availability of C3 and C3(156-181) at the lesion site can further enhance PNR in vivo and to 2) elucidate effects of C3 and C3(156-181) on Schwann cells (SCs)(4)in vitro. For in vivo studies, 10 mm adult rat sciatic nerve gaps were reconstructed with the epineurial pouch technique or autologous nerve grafts. Epineurial pouches were filled with a hydrogel containing i) vehicle, ii) 40 μM C3 or iii) 40 μM C3(156-181). Sensory and motor functional recovery was monitored over 12 weeks and the outcome of PNR further analyzed by nerve morphometry. In vitro, we compared gene expression profiles (microarray analysis) and neurotrophic factor expression (western blot analysis) of untreated rat neonatal SCs with those treated with C3 or C3(156-181) for 72 h. Effects on neurotrophic factor expression levels were proven in adult human SCs. Unexpectedly, prolonged delivery of C3 and C3(156-181) at the lesion site did not increase the outcome of PNR. Regarding the potential mechanism underlying their previously detected PNR promoting action, however, 6 genes were found to be commonly altered in SCs upon treatment with C3 or C3(156-181). We demonstrate significant down-regulation of genes involved in glutamate uptake (Eaac1,(5)Grin2a(6)) and changes in neurotrophic factor expression (increase of FGF-2(7) and decrease of NGF(8)). Our microarray-based expression profiling revealed novel C3-regulated genes in SCs possibly involved in the axonotrophic (regeneration promoting) effects of C3 and C3(156-181). Detection of altered neurotrophic factor expression by C3 or C3(156-181) treated primary neonatal rat SCs and primary adult human SCs supports this hypothesis.

KW - ADP Ribose Transferases/pharmacology

KW - Animals

KW - Botulinum Toxins/pharmacology

KW - Brain-Derived Neurotrophic Factor/metabolism

KW - Cells, Cultured

KW - Coculture Techniques

KW - Female

KW - Glial Cell Line-Derived Neurotrophic Factor

KW - Mice

KW - Nerve Growth Factor/metabolism

KW - Nerve Regeneration/drug effects

KW - Rats

KW - Schwann Cells/cytology

KW - Sciatic Nerve/drug effects

KW - Schwann cells

KW - Gene expression

KW - Microarray

KW - C3 exoenzyme

KW - Peripheral nerve regeneration

KW - Mass spectrometry

UR - http://www.scopus.com/inward/record.url?scp=84946397271&partnerID=8YFLogxK

U2 - 10.1016/j.neuint.2015.09.007

DO - 10.1016/j.neuint.2015.09.007

M3 - Article

C2 - 26417907

VL - 90

SP - 232

EP - 245

JO - Neurochemistry international

JF - Neurochemistry international

SN - 0197-0186

ER -

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