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Anti-inflammatory, antioxidant and anti-mitophagy effects of trans sodium crocetinate on experimental autoimmune encephalomyelitis in BALB/C57 mice

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Abstract

Multiple sclerosis (MS) is an autoimmune disorder characterized by the degeneration of myelin and inflammation in the central nervous system. Trans sodium crocetinate (TSC), a novel synthetic carotenoid compound, possesses antioxidant, anti-inflammatory and neuroprotective effects. This study aimed to evaluate the protective effects of TSC against the development of experimental autoimmune encephalomyelitis (EAE), a well-established model for MS. Female BALB/C57 mice were divided into different groups, including control, EAE, vehicle, TSC-treated (25, 50, and 100 mg/kg, administered via gavage) + EAE, methyl prednisone acetate + EAE, and TSC-treated (100 mg/kg, administered via gavage for 28 days) groups. EAE was induced using MOG35-55, complete Freund’s adjuvant, and pertussis toxin. In the mice spinal cord tissues, the oxidative markers (GSH and MDA) were measured using spectrophotometry and histological evaluation was performed. Mitophagic pathway proteins (PINK1and PARKIN) and inflammatory factors (IL-1β and TNF-α) were evaluated by western blot. Following 21 days post-induction, EAE mice exhibited weight loss, and the paralysis scores increased on day 13 but recovered after TSC (100 mg/kg) administration on day 16. Furthermore, TSC (50 and 100 mg/kg) reversed the altered levels of MDA and GSH in the spinal cord tissue of EAE mice. TSC (100 mg/kg) also decreased microgliosis, demyelination, and the levels of inflammatory markers IL-1β and TNF-α. Notably, TSC (100 mg/kg) modulated the mitophagy pathway by reducing PINK1 and Parkin protein levels. These findings demonstrate that TSC protects spinal cord tissue against EAE-induced MS through anti-inflammatory, antioxidant, and anti-mitophagy mechanisms.

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Data availability

The data that support the findings of this study are available from the corresponding author upon reasonable request.

Abbreviations

ATG5:

Autophagy related 5

CFA:

Freund’s Adjuvant, Complete

CNS:

central nervous system

COX-2:

Cyclooxygenase 2

CQ:

clioquinol

CSF:

cerebrospinal fluid

Drp1:

Dynamin-related protein 1

EAE:

Experimental Autoimmune Encephalomyelitis

GSH:

Glutathione

H&E:

Hematoxylin-eosin

IL-1β:

Interleukin‐1β

IL-6:

Interleukin 6

iNOS:

Inducible nitric oxide synthase

LC3:

Microtubule-associated protein 1 A/1B-light chain 3

LFB:

Luxol fast blue

MP:

Methyl prednisone acetate

MDA:

Malondialdehyde

MOG:

Myelin oligodendrocyte glycoprotein

mRNA:

Messenger RNA

MS:

Multiple Sclerosis

MSIF:

MS International Federation

NF-Κb:

nuclear transcription factor-kappa B

PINK1:

Parkin and PTEN-induced kinase 1

PTX:

Pertussis toxin

PVDF:

Polyvinylidene fluoride

ROS:

Reactive oxygen species

SOD:

Superoxide dismutase

TBST:

Tris-Buffered Saline and Tween 20

TNF-α:

Tumor necrosis factor alpha

TSC:

Trans sodium crocetinate

TMEV:

Theiler׳s murine encephalomyelitis virus

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Acknowledgements

The authors are thankful to the Vice-Chancellor of Research, Mashhad University of Medical Sciences for financial support (Grant/Award Number: 971984). The results presented in this paper are part of a Ph.D. thesis.

Funding

This work was supported by the Mashhad University of Medical Sciences. Start-up funding to A/Prof. Hossein Hosseinzadeh.

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Authors and Affiliations

Authors

Contributions

Sara Banaeeyeh: Investigation, Data curation, Data analyses, Writing, Original draft preparation, and Editing. Zahra Moosavi: Pathology analysis. Amir Afkhami-Goli: Supervision, EAE induction, Reviewing, and Editing. Bibi Marjan Razavi: Conceptualization, Supervision, Data analyses, Reviewing and Editing. Hossein Hosseinzade: Conceptualization, Supervision, Data analyses, Reviewing and Editing. All the authors approved the final version of the manuscript.

Corresponding author

Correspondence to Hossein Hosseinzadeh.

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All persons who meet authorship criteria are listed as authors, and all authors certify that they have participated sufficiently in the work to take public responsibility for the content, including participation in the concept, design, analysis, writing, or revision of the manuscript. Furthermore, each author certifies that this material or similar material has not been and will not be submitted to or published in any other publication before its appearance in the Metabolic Brain Disease Journal.

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All the authors have consented to publishing this manuscript.

Ethics statement

The animal study was reviewed and approved by the Mashhad University of Medical Sciences Animal Care and Use Committee (971984), and every protocol used in this study was followed.

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Not applicable to animal studies.

Competing interest

The financial support for this study from Mashhad University of Medical Sciences is disclosed. The authors declare no conflict of interest.

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Banaeeyeh, S., Afkhami-Goli, A., Moosavi, Z. et al. Anti-inflammatory, antioxidant and anti-mitophagy effects of trans sodium crocetinate on experimental autoimmune encephalomyelitis in BALB/C57 mice. Metab Brain Dis (2024). https://doi.org/10.1007/s11011-024-01349-0

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