Semaphorin-3A as An Immune Modulator Is Suppressed by MicroRNA-145-5p

Rezaeepoor M., Ganjalikhani-hakemi M., Shapoori S., Eskandari N., Sharifi M., Etemadifar M., ...More

Cell Journal, vol.20, no.1, pp.113-119, 2018 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 20 Issue: 1
  • Publication Date: 2018
  • Doi Number: 10.22074/cellj.2018.4842
  • Journal Name: Cell Journal
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.113-119
  • Keywords: MicroRNAs, MiR-145-5p, Semaphorin-3A
  • Istanbul Medipol University Affiliated: No


Objective: Semaphorin-3A (SEMA3A) and its receptors are found on some immune cells and act as suppressors of immune cells over-activation. Considering the role of SEMA3A and its down-regulation in some autoimmune diseases, as well as our bioinformatics predictions, we assumed that miR-145-5p might affect SEMA3A expression. So, we aimed to determine the effect of miR-145-5p on SEMA3A gene expression level. Materials and Methods: In this experimental study, we evaluated the effect of miR-145-5p transfection on SEMA3A expression in peripheral blood mononuclear cells (PBMCs) using ELISA and quantitative real-time polymerase chain reaction (PCR) methods. Results: Our results showed that miR-145-5p is able to decrease SEMA3A expression at both protein and mRNA levels. These data confirmed our previous bioinformatic prediction about the inhibitory effect of miR-145-5p on SEMA3A expression. Conclusion: These results enlightened us about an unknown aspect of SEMA3A role in some autoimmune disorders like multiple sclerosis (MS) and rheumatoid arthritis (RA) and also proposed SEMA3A as a potential therapeutic approach.