Association between body fat distribution and B-lymphocyte subsets in peripheral blood

被引：5

作者：

Prechtl, Pia ^{[1
,2
]}

Schmitz, Timo ^{[1
]}

Pochert, Nicole ^{[3
,4
]}

Traidl-Hoffmann, Claudia ^{[3
,5
]}

Linseisen, Jakob ^{[1
,2
]}

Meisinger, Christa ^{[1
]}

Freuer, Dennis ^{[1
]}

机构：

[1] Univ Augsburg, Med Fac, Epidemiol, Augsburg, Germany

[2] LMU, Inst Med Informat Proc Biometry & Epidemiol IBE, Munich, Germany

[3] Helmholtz Munich, Inst Environm Med, Munich, Germany

[4] Univ Hosp Augsburg, Dept Obstet & Gynecol, Augsburg, Germany

[5] Univ Augsburg, Fac Med, Environm Med, Augsburg, Germany

来源：

IMMUNITY & AGEING | 2023年 / 20卷 / 01期

关键词：

Visceral fat; Adaptive immunity; B cells; B-lymphocytes; Immune system; Obesity; ADIPOSE-TISSUE; OBESITY; CELLS; COMPARTMENTS; INFLAMMATION;

D O I：

10.1186/s12979-023-00372-6

中图分类号：

R592 [老年病学]; C [社会科学总论];

学科分类号：

03 ; 0303 ; 100203 ;

摘要：

BackgroundObesity is associated with chronic low-grade inflammation, which is underpinned by the presence of elevated levels of circulating proinflammatory cytokines in obese individuals. Due to the close relationship between adipose tissue and the immune system, it can be speculated that the accumulation of fat may influence the frequency and phenotype of lymphocyte populations. The aim of our study was to investigate whether body fat distribution is associated with B lymphocyte composition in peripheral blood. We examined the association between visceral (VAT) and total body fat (TBF) and the frequencies of B-cell subsets in 238 subjects over a period of up to one year using random intercept models. B lymphocyte subsets were determined by fluorescence-based flow cytometry.ResultsInverse associations were found between body fat measurements and plasma blasts, memory B cells, and IgM-IgD- cells. VAT, but not TBF, was positively associated with naive CD19 cells. In our analyses, both VAT and TBF showed positive associations with IgD only B cells.ConclusionsIn conclusion, body fat accumulation seems to be associated with a lower proportion of antibody-secreting plasma blasts and memory cells and an increasing amount of partially anergic, naive CD19 cells.

引用

页数：9