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Yazdi IK, Taghipour N, Hmaidan S, Palomba R, Scaria S, Munoz A, Boone TB, Tasciotti E. Antibody-mediated inhibition of Nogo-A signaling promotes neurite growth in PC-12 cells. J Tissue Eng 2016; 7:2041731416629767. [PMID: 27027860 PMCID: PMC4794088 DOI: 10.1177/2041731416629767] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 01/08/2016] [Indexed: 01/03/2023] Open
Abstract
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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Affiliation(s)
- Iman K Yazdi
- Department of Regenerative Medicine, Houston Methodist Research Institute, Houston, TX, USA; Department of Biomedical Engineering, University of Houston, Houston, TX, USA
| | - Nima Taghipour
- Department of Regenerative Medicine, Houston Methodist Research Institute, Houston, TX, USA
| | - Sarah Hmaidan
- Department of Regenerative Medicine, Houston Methodist Research Institute, Houston, TX, USA
| | - Roberto Palomba
- Department of Regenerative Medicine, Houston Methodist Research Institute, Houston, TX, USA
| | - Shilpa Scaria
- Department of Regenerative Medicine, Houston Methodist Research Institute, Houston, TX, USA
| | - Alvaro Munoz
- Department of Regenerative Medicine, Houston Methodist Research Institute, Houston, TX, USA
| | - Timothy B Boone
- Department of Regenerative Medicine, Houston Methodist Research Institute, Houston, TX, USA; Department of Urology, Houston Methodist Hospital, Houston, TX, USA
| | - Ennio Tasciotti
- Department of Regenerative Medicine, Houston Methodist Research Institute, Houston, TX, USA
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