TY  - JOUR
AU  - Radojević, Dušan
AU  - Bekić, Marina
AU  - Gruden-Movsesijan, Alisa
AU  - Ilić, Nataša
AU  - Dinić, Miroslav
AU  - Bisenić, Aleksandar
AU  - Golić, Nataša
AU  - Vucević, Dragana
AU  - Đokić, Jelena
AU  - Tomić, Sergej
PY  - 2022
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1540
AB  - Over-activated myeloid cells and disturbance in gut microbiota composition are critical factors contributing to the pathogenesis of Multiple Sclerosis (MS). Myeloid-derived suppressor cells (MDSCs) emerged as promising regulators of chronic inflammatory diseases, including autoimmune diseases. However, it remained unclear whether MDSCs display any therapeutic potential in MS, and how this therapy modulates gut microbiota composition. Here, we assessed the potential of in vitro generated bone marrow-derived MDSCs to ameliorate experimental autoimmune encephalomyelitis (EAE) in Dark Agouti rats and investigated how their application associates with the changes in gut microbiota composition. MDSCs differentiated with prostaglandin (PG)E2 (MDSC-PGE2) and control MDSCs (differentiated without PGE2) displayed strong immunosuppressive properties in vitro, but only MDSC-PGE2 significantly ameliorated EAE symptoms. This effect correlated with a reduced infiltration of Th17 and IFN-gamma-producing NK cells, and an increased proportion of regulatory T cells in the CNS and spleen. Importantly, both MDSCs and MDSC-PGE2 prevented EAE-induced reduction of gut microbiota diversity, but only MDSC-PGE2 prevented the extensive alterations in gut microbiota composition following their early migration into Payer's patches and mesenteric lymph nodes. This phenomenon was related to the significant enrichment of gut microbial taxa with potential immunoregulatory properties, as well as higher levels of butyrate, propionate, and putrescine in feces. This study provides new insights into the host-microbiota interactions in EAE, suggesting that activated MDSCs could be potentially used as an efficient therapy for acute phases of MS. Considering a significant association between the efficacy of MDSC-PGE2 and gut microbiota composition, our findings also provide a rationale for further exploring the specific microbial metabolites in MS therapy.
PB  - Taylor & Francis Inc, Philadelphia
T2  - Gut Microbes
T1  - Myeloid-derived suppressor cells prevent disruption of the gut barrier, preserve microbiota composition, and potentiate immunoregulatory pathways in a rat model of experimental autoimmune encephalomyelitis
IS  - 1
VL  - 14
DO  - 10.1080/19490976.2022.2127455
ER  - 

@article{
author = "Radojević, Dušan and Bekić, Marina and Gruden-Movsesijan, Alisa and Ilić, Nataša and Dinić, Miroslav and Bisenić, Aleksandar and Golić, Nataša and Vucević, Dragana and Đokić, Jelena and Tomić, Sergej",
year = "2022",
abstract = "Over-activated myeloid cells and disturbance in gut microbiota composition are critical factors contributing to the pathogenesis of Multiple Sclerosis (MS). Myeloid-derived suppressor cells (MDSCs) emerged as promising regulators of chronic inflammatory diseases, including autoimmune diseases. However, it remained unclear whether MDSCs display any therapeutic potential in MS, and how this therapy modulates gut microbiota composition. Here, we assessed the potential of in vitro generated bone marrow-derived MDSCs to ameliorate experimental autoimmune encephalomyelitis (EAE) in Dark Agouti rats and investigated how their application associates with the changes in gut microbiota composition. MDSCs differentiated with prostaglandin (PG)E2 (MDSC-PGE2) and control MDSCs (differentiated without PGE2) displayed strong immunosuppressive properties in vitro, but only MDSC-PGE2 significantly ameliorated EAE symptoms. This effect correlated with a reduced infiltration of Th17 and IFN-gamma-producing NK cells, and an increased proportion of regulatory T cells in the CNS and spleen. Importantly, both MDSCs and MDSC-PGE2 prevented EAE-induced reduction of gut microbiota diversity, but only MDSC-PGE2 prevented the extensive alterations in gut microbiota composition following their early migration into Payer's patches and mesenteric lymph nodes. This phenomenon was related to the significant enrichment of gut microbial taxa with potential immunoregulatory properties, as well as higher levels of butyrate, propionate, and putrescine in feces. This study provides new insights into the host-microbiota interactions in EAE, suggesting that activated MDSCs could be potentially used as an efficient therapy for acute phases of MS. Considering a significant association between the efficacy of MDSC-PGE2 and gut microbiota composition, our findings also provide a rationale for further exploring the specific microbial metabolites in MS therapy.",
publisher = "Taylor & Francis Inc, Philadelphia",
journal = "Gut Microbes",
title = "Myeloid-derived suppressor cells prevent disruption of the gut barrier, preserve microbiota composition, and potentiate immunoregulatory pathways in a rat model of experimental autoimmune encephalomyelitis",
number = "1",
volume = "14",
doi = "10.1080/19490976.2022.2127455"
}

Radojević, D., Bekić, M., Gruden-Movsesijan, A., Ilić, N., Dinić, M., Bisenić, A., Golić, N., Vucević, D., Đokić, J.,& Tomić, S.. (2022). Myeloid-derived suppressor cells prevent disruption of the gut barrier, preserve microbiota composition, and potentiate immunoregulatory pathways in a rat model of experimental autoimmune encephalomyelitis. in Gut Microbes
Taylor & Francis Inc, Philadelphia., 14(1).
https://doi.org/10.1080/19490976.2022.2127455

Radojević D, Bekić M, Gruden-Movsesijan A, Ilić N, Dinić M, Bisenić A, Golić N, Vucević D, Đokić J, Tomić S. Myeloid-derived suppressor cells prevent disruption of the gut barrier, preserve microbiota composition, and potentiate immunoregulatory pathways in a rat model of experimental autoimmune encephalomyelitis. in Gut Microbes. 2022;14(1).
doi:10.1080/19490976.2022.2127455 .

Radojević, Dušan, Bekić, Marina, Gruden-Movsesijan, Alisa, Ilić, Nataša, Dinić, Miroslav, Bisenić, Aleksandar, Golić, Nataša, Vucević, Dragana, Đokić, Jelena, Tomić, Sergej, "Myeloid-derived suppressor cells prevent disruption of the gut barrier, preserve microbiota composition, and potentiate immunoregulatory pathways in a rat model of experimental autoimmune encephalomyelitis" in Gut Microbes, 14, no. 1 (2022),
https://doi.org/10.1080/19490976.2022.2127455 . .