在患有复发性复发性硬化症的患者中,维生素D诱导的TGF-β调节通路基因表达的变化
Alberto Lozano-Ros1, María L Martínez-Ginés1, José M García-Domínguez1
1Servicio de Neurología, Instituto de Investigación Sanitaria Gregorio Marañón, Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain.
International journal of molecular sciences
|October 14, 2023
概括
补充维生素D似乎通过改变免疫细胞中的基因表达来间接影响多发性硬化症 (MS) 的TGF-β途径. 这项研究探讨了维生素D.
科学领域:
- 免疫学 免疫学 免疫学
- 神经科学是一个神经科学.
- 内分泌学 在内分泌学.
背景情况:
- 维生素D对于免疫调节至关重要,并与多发性硬化症 (MS) 有关.
- 转化生长因子-β (TGF-β) 在免疫中具有双重作用,抑制Th1并支持调节性T细胞 (Tregs),但IL-6可以促进Th17反应.
- 了解维生素D对TGF-β信号传递的影响对于MS治疗至关重要.
研究的目的:
- 研究维生素D对复发性复发性硬化症 (RRMS) 患者体内TGF-β信号通路的调节作用.
- 在RRMS患者中补充维生素D后分析与TGF-β通路相关的特定基因表达的变化.
主要方法:
- 21名患有低维生素D (<30 ng/mL) 的RRMS患者接受了口服维生素D补充剂.
- 基因表达TGF-β通路组件 (SMAD7,ERK1,ZMIZ1,BMP2,BMPRII,BMP4,BMP5) 在基线,1个月和6个月的CD4+淋巴细胞中被测量.
- 分析考虑了基于纳塔利祖马布治疗和疾病活性 (Rio-Score,复发,EDSS变化) 的患者子组.
主要成果:
- *SMAD7*与基线和1个月相比,在补充剂后6个月显示过度表达.
- *ERK1*在6个月和1个月时表达过度.
- 没有发现血清维生素D水平与基因表达之间的直接相关性.
- 在纳塔利祖马布治疗和未治疗患者之间, *BMPRII* 表达式有所不同.
- 在 *ERK1*, *BMP2* 和 *BMP5* 中的基因表达变化与疾病活性指标相关.
结论:
- 维生素D可能间接调节RRMS患者的TGF-β通路基因.
- 维生素D的作用似乎很复杂,并可能受到疾病修饰疗法和疾病活性的调节.
- 需要进一步的研究来阐明维生素D在MS中免疫调节作用的确切机制.
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