Antibody-mediated inhibition of Nogo-A signaling promotes neurite growth in PC-12 cells

Autor: Iman K Yazdi, Nima Taghipour, Sarah Hmaidan, Roberto Palomba, Shilpa Scaria, Alvaro Munoz, Timothy B Boone, Ennio Tasciotti
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Journal of Tissue Engineering, Vol 7 (2016)
Druh dokumentu: article
ISSN: 2041-7314
20417314
DOI: 10.1177/2041731416629767
Popis: The use of a monoclonal antibody to block the neurite outgrowth inhibitor Nogo-A has been of great interest for promoting axonal recovery as a treatment for spinal cord injury. While several cellular and non-cellular assays have been developed to quantify the bioactive effects of Nogo-A signaling, demand still exists for the development of a reliable approach to characterize the effectiveness of the anti-Nogo-A antibody. In this study, we developed and validated a novel cell-based approach to facilitate the biological quantification of a Nogo-A antibody using PC-12 cells as an in vitro neuronal cell model. Changes in the mRNA levels of the neuronal differentiation markers, growth-associated protein 43 and neurofilament light-polypeptide, suggest that activation of the Nogo-A pathway suppresses axonal growth and dendrite formation in the tested cell line. We found that application of anti-Nogo-A monoclonal antibody can significantly enhance the neuronal maturity of PC-12 cells by blocking the Nogo-A inhibitory effects, providing enhanced effects on neural maturity at the molecular level. No adverse effects were observed on cell viability.
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