Abstract
Spinal cord injury (SCI) is a critical medical condition during which sensorimotor function is lost. Current treatments are still unable to effectively improve these conditions, so it is important to pay attention to other effective approaches. Currently, we investigated the combined effects of human placenta mesenchymal stem cells (hPMSCs)-derived exosomes along with hyperbaric oxygen (HBO) in the recovery of SCI in rats. Ninety male mature Sprague-Dawley (SD) rats were allocated into five equal groups, including; sham group, SCI group, Exo group (underwent SCI and received hPMSCs-derived exosomes), HBO group (underwent SCI and received HBO), and Exo+HBO group (underwent SCI and received hPMSCs-derived exosomes plus HBO). Tissue samples at the lesion site were obtained for the evaluation of stereological, immunohistochemical, biochemical, molecular, and behavioral characteristics. Findings showed a significant increase in stereological parameters, biochemical factors (GSH, SOD, and CAT), IL-10 gene expression and behavioral functions (BBB and EMG Latency) in treatment groups, especially Exo+HBO group, compared to SCI group. In addition, MDA levels, the density of apoptotic cells and gliosis, as well as expression of inflammatory genes (TNF-α and IL-1β) were considerably reduced in treatment groups, especially Exo+HBO group, compared to SCI group. We conclude that co-administration of hPMSCs-derived exosomes and HBO has synergistic neuroprotective effects in animals undergoing SCI.
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Data Availability
All the data is available with Dr. Davood Nasiry, reasonable request will be responded with supplementary raw-data.
Abbreviations
- SCI:
-
Spinal cord injury
- hPMSCs:
-
Human placenta mesenchymal stem cells
- HBO:
-
Hyperbaric oxygen
- SD:
-
Sprague-Dawley
- PBS:
-
Phosphate-buffered saline
- DMEM:
-
Dulbecco modified Eagle medium
- TEM:
-
Transmission electron microscopy
- PVDF:
-
Polyvinylidene difluoride
- TBST:
-
Tris-buffered-saline-tween
- DAB:
-
3,3-Diaminobenzidine
- DLS:
-
Dynamic light scattering
- IP:
-
Intraperitoneal
- GFAP:
-
Glial fibrillary acidic protein
- MDA:
-
Malondialdehyde
- GSH:
-
Glutathione
- SOD:
-
Superoxide dismutase
- CAT:
-
Catalase
- qRT-PCR:
-
Quantitative real-time polymerase chain reaction
- cDNA:
-
Complementary DNA
- IL-10:
-
Interleukin-10
- TNF-α:
-
Tumor necrosis factor-alpha
- IL-10:
-
Interleukin-1beta
- BBB:
-
Basso-Beattie-Bresnehan
- NBT:
-
Narrow beam walking test
- EMG:
-
Electromyography
- ANOVA:
-
One-way analysis of variance
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This work was supported by Mazandaran University of Medical Sciences (Grant no: 13781).
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Methodology: Davood Nasiry, Rafat Rezapour-Nasrabad, Hossein Mohammadi, Beheshteh Abouhamzeh; Formal analysis: Mahnaz Poorhassan, Mehri Mirhoseini, Hossein Mokhtari, Esmaeil Akbari, Amir Raoofi; Investigation: Hosna Cheshmi; Writing-original draft: Davood Nasiry, Beheshteh Abouhamzeh; Writing - review & editing: Davood Nasiry, Rafat Rezapour-Nasrabad, Amir Raoofi; Supervision: Davood Nasiry; Funding acquisition: Davood Nasiry.
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The use of human placenta samples was approved by the ethics committee of Mazandaran University of Medical Sciences, and written informed consent was obtained before clinical sampling. The methods were carried out in compliance with the ARRIVE guidelines. All experimental protocols were approved by Ethics Committee based on NIH Guide for the Care and Use of Laboratory Animals (Ethic no: IR.MAZUMS.4.REC.1400.13781).
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Cheshmi, H., Mohammadi, H., Akbari, M. et al. Human Placental Mesenchymal Stem Cell-derived Exosomes in Combination with Hyperbaric Oxygen Synergistically Promote Recovery after Spinal Cord Injury in Rats. Neurotox Res 41, 431–445 (2023). https://doi.org/10.1007/s12640-023-00649-0
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DOI: https://doi.org/10.1007/s12640-023-00649-0