Metformin improves in vivo and in vitro B cell function in individuals with obesity and Type-2 Diabetes.

Metformin improves in vivo and in vitro B cell function in individuals with obesity and Type-2 Diabetes.
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DOI:
10.1016/j.vaccine.2017.03.078
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发表时间:
2017-05-09
期刊:
影响因子:
5.5
通讯作者:
Frasca D
Frasca D
中科院分区:
医学3区
文献类型:
--
作者:
Diaz A;Romero M;Vazquez T;Lechner S;Blomberg BB;Frasca D

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二甲双胍 (MET) 是治疗 2 型糖尿病 (T2D) 的一线药物,已被证明可以通过降低高血糖来间接减少慢性炎症,或直接作为抗炎药。 MET 对 B 淋巴细胞的影响尚不清楚。在本研究中,我们测量了两组 T2D 患者的体内和体外流感疫苗反应:最近诊断但未服用抗糖尿病药物的患者,以及服用 MET 的患者。结果表明,因肥胖和 T2D 阻碍的 B 细胞功能和疫苗反应可通过 MET 得到恢复。此外,在体外使用 MET 刺激最近诊断的 T2D 患者的 B 细胞也能够减少 B 细胞内在炎症并增加抗体反应,类似于我们在服用 MET 的患者 B 细胞中看到的情况,这些患者在体内对流感疫苗的反应增加。这些结果首次显示 MET 对 B 细胞的影响。
Metformin (MET), the first-line medication for Type-2 Diabetes (T2D), has been shown to reduce chronic inflammation indirectly through reduction of hyperglycemia, or directly acting as anti-inflammatory drug. The effects of MET on B lymphocytes is uncharacterized. In the present study, we measured in vivo and in vitro influenza vaccine responses in 2 groups of T2D patients: recently diagnosed but not taking anti-diabetic drugs, and patients taking MET. Results show that B cell function and vaccine responses, hampered by obesity and T2D, are recovered by MET. Moreover, MET used in vitro to stimulate B cells from recently diagnosed T2D patients is also able to reduce B cell-intrinsic inflammation and increase antibody responses, similar to what we have seen in B cells from patients taking MET, who show increased responses to the influenza vaccine in vivo. These results are the first to show an effect of MET on B cells.
DOI: 10.4049/jimmunol.1003964
发表时间: 2012-01-01
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
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