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Effects of Lactobacillus casei Strain T2 (IBRC-M10783) on the Modulation of Th17/Treg and Evaluation of miR-155, miR-25, and IDO-1 Expression in a Cuprizone-Induced C57BL/6 Mouse Model of Demyelination.
Inflammation ( IF 5.1 ) Pub Date : 2020-09-10 , DOI: 10.1007/s10753-020-01339-1
Saeideh Gharehkhani Digehsara 1 , Niloofar Name 1 , Behnaz Esfandiari 2 , Elahe Karim 1 , Saba Taheri 2 , Maryam Tajabadi-Ebrahimi 1 , Javad Arasteh 1
Affiliation  

Multiple sclerosis (MS) is a complex inflammatory disease in which demyelination occurs in the central nervous system affecting approximately 2.5 million people worldwide. Recent reports have shown that the gut microbiome plays a crucial role in the functioning of the immune system in inflammatory diseases such as MS. In this study, the cuprizone-induced demyelination mouse model was used to investigate the effect of Lactobacillus casei strain T2 (IBRC-M10783) on the alleviation of these mice. Female C57BL/6 mice (8-10 weeks old) were divided into 6 groups: group 1, normal control; group 2, cuprizone control (oral administration of cuprizone 0.2% w/w for 4 weeks); group 3, probiotic control (oral administration of 1 × 109 CFU/ml probiotic for 4 weeks); group 4, treatment 1 (probiotic for 4 weeks then cuprizone for 4 weeks); group 5, treatment 2 (cuprizone for 4 weeks then probiotic for 4 weeks); and group 6, treatment 3 (cuprizone for 4 weeks then probiotic for 4 weeks with vitamin D3 at a dose of 20 IU/day). Then, TGF-β and IL-17 were measured by ELISA, and the expression of miR-155, miR-25, and IDO-1 was evaluated by real-time PCR. Among the measured microRNAs, the results showed that there was a significant decrease in miR-155 expression between the treatment 1 group and the cuprizone group. In the case of IL-17, the results also showed a significant reduction between the three treatment groups and the cuprizone group. These observations suggest that L. casei can reduce proinflammatory cytokines and reduce demyelinating symptoms in the mouse model.

中文翻译:

干酪乳杆菌菌株 T2 (IBRC-M10783) 在铜宗诱导的 C57BL/6 脱髓鞘小鼠模型中对 Th17/Treg 的调节和 miR-155、miR-25 和 IDO-1 表达的评估的影响。

多发性硬化症 (MS) 是一种复杂的炎症性疾病,其中中枢神经系统发生脱髓鞘,影响全球约 250 万人。最近的报告表明,肠道微生物群在炎症性疾病(如 MS)中的免疫系统功能中起着至关重要的作用。在本研究中,铜宗诱导脱髓鞘小鼠模型用于研究干酪乳杆菌菌株 T2 (IBRC-M10783) 对这些小鼠的缓解作用。雌性 C57BL/6 小鼠(8-10 周龄)分为 6 组:第 1 组,正常对照;第 2 组,铜宗对照(口服铜宗 0.2% w/w 4 周);第3组,益生菌对照(口服1×109 CFU/ml益生菌4周);第 4 组,治疗 1(益生菌 4 周,然后铜宗 4 周);第 5 组,治疗 2(铜宗 4 周,然后益生菌 4 周);第 6 组,治疗 3(铜宗 4 周,然后益生菌 4 周,维生素 D3 剂量为 20 IU/天)。然后,通过ELISA测量TGF-β和IL-17,并通过实时PCR评估miR-155、miR-25和IDO-1的表达。在测量的microRNA中,结果显示治疗1组和铜宗组之间miR-155的表达有显着降低。在 IL-17 的情况下,结果还显示三个治疗组和铜宗组之间的显着减少。这些观察结果表明,干酪乳杆菌可以减少小鼠模型中的促炎细胞因子并减少脱髓鞘症状。治疗 3(铜宗 4 周,然后益生菌 4 周,维生素 D3 剂量为 20 IU/天)。然后,通过ELISA测量TGF-β和IL-17,并通过实时PCR评估miR-155、miR-25和IDO-1的表达。在测量的microRNA中,结果显示治疗1组和铜宗组之间miR-155的表达有显着降低。在 IL-17 的情况下,结果还显示三个治疗组和铜宗组之间的显着减少。这些观察结果表明,干酪乳杆菌可以减少小鼠模型中的促炎细胞因子并减少脱髓鞘症状。治疗 3(铜宗 4 周,然后益生菌 4 周,维生素 D3 剂量为 20 IU/天)。然后,通过ELISA测量TGF-β和IL-17,并通过实时PCR评估miR-155、miR-25和IDO-1的表达。在测量的microRNA中,结果显示治疗1组和铜宗组之间miR-155的表达有显着降低。在 IL-17 的情况下,结果还显示三个治疗组和铜宗组之间的显着减少。这些观察结果表明,干酪乳杆菌可以减少小鼠模型中的促炎细胞因子并减少脱髓鞘症状。结果显示,治疗1组和铜宗组之间miR-155的表达有显着降低。在 IL-17 的情况下,结果还显示三个治疗组和铜宗组之间的显着减少。这些观察结果表明,干酪乳杆菌可以减少小鼠模型中的促炎细胞因子并减少脱髓鞘症状。结果显示,治疗1组和铜宗组之间miR-155的表达有显着降低。在 IL-17 的情况下,结果还显示三个治疗组和铜宗组之间的显着减少。这些观察结果表明,干酪乳杆菌可以减少小鼠模型中的促炎细胞因子并减少脱髓鞘症状。
更新日期:2020-09-10
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