Investigation into effects of tocilizumab and epoetin beta in rats with experimental sciatic nerve injury model

Güler Kanter A., ÜLGER H., Bozkurt A. S., Tarakçıoğlu M., Özercan İ. H., Ulusal H.

Tissue and Cell, vol.88, 2024 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 88
  • Publication Date: 2024
  • Doi Number: 10.1016/j.tice.2024.102357
  • Journal Name: Tissue and Cell
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, CAB Abstracts, Veterinary Science Database
  • Keywords: Epoetin beta (EPO), Injury, Nerve, Tocilizumab (TCZ)
  • Erciyes University Affiliated: Yes


Objective: To investigate the effects of tocilizumab (TCZ), epoetin beta (EPO), and their combination on nerve regeneration in a sciatic nerve injury model. Materials and method: Male Sprague-Dawley rats were divided into (-) negative control, sham, TCZ, EPO ((+) positive control), and TCZ+EPO groups. The TCZ group received TCZ (8 mg/kg intraperitoneal) immediately after surgery. On day 14th, the EPO group received EPO (5000 IU/kg, intraperitoneal); the TCZ+EPO group received TCZ (8 mg/kg, intraperitoneal), EPO (5000 IU/kg, intraperitoneal), and TCZ (8 mg/kg, intraperitoneal) post-surgery. Motor and sensory functions were assessed pre and post-surgery. Lipid peroxidation and oxidative stress parameters were evaluated biochemically in the serum, and sciatic nerve tissue was evaluated histopathologically using haematoxylin-Eosin and Masson trichrome staining. Conclusions: TCZ and EPO decreased nerve injury effects by increasing motor and sensory conduction velocities of the sciatic nerve. Biochemically, TCZ and EPO significantly increased Superoxide Dismutase, Catalase, and Glutathione peroxidase 4 levels while decreasing Lipid Peroxidation levels (p=0.001). Histopathologically, neuronal degeneration following nerve injury was decreased in the groups receiving TCZ and EPO (p=0.001). EPO and TCZ attenuate the adverse effects of nerve injury. However, the TCZ+EPO treatment favoured biochemical activities over tissue and functional activities. This has been confirmed functionally, biochemically, and histopathologically.