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Adipose tissue lymphocytes: types and roles.
Journal of Physiology and Biochemistry ( IF 3.4 ) Pub Date : 2010 , DOI: 10.1007/bf03185938
S Caspar-Bauguil 1 , B Cousin , S Bour , L Casteilla , L Castiella , L Penicaud , C Carpéné
Affiliation  

Besides adipocytes, specialized in lipid handling and involved in energy balance regulation, white adipose tissue (WAT) is mainly composed of other cell types among which lymphocytes represent a non-negligible proportion. Different types of lymphocytes (B, αβT, γδT, NK and NKT) have been detected in WAT of rodents or humans, and vary in their relative proportion according to the fat pad anatomical location. The lymphocytes found in intra-abdominal, visceral fat pads seem representative of innate immunity, while those present in subcutaneous fat depots are part of adaptive immunity, at least in mice. Both the number and the activity of the different lymphocyte classes, except B lymphocytes, are modified in obesity. Several of these modifications in the relative proportions of the lymphocyte classes depend on the degree of obesity, or on leptin concentration, or even fat depot anatomical location. Recent studies suggest that alterations of lymphocyte number and composition precede the macrophage increase and the enhanced inflammatory state of WAT found in obesity. Lymphocytes express receptors to adipokines while several proinflammatory chemokines are produced in WAT, rendering intricate crosstalk between fat and immune cells. However, the evidences and controversies available so far are in favour of an involvement of lymphocytes in the control of the number of other cells in WAT, either adipocytes or immune cells and of their secretory and metabolic activities. Therefore, immunotherapy deserves to be considered as a promising approach to treat the endocrino-metabolic disorders associated to excessive fat mass development.

中文翻译:

脂肪组织淋巴细胞:类型和作用。

除了脂肪细胞,专门从事脂质处理并参与能量平衡调节,白色脂肪组织 (WAT) 主要由其他细胞类型组成,其中淋巴细胞占不可忽视的比例。在啮齿类动物或人类的 WAT 中检测到不同类型的淋巴细胞(B、αβT、γδT、NK 和 NKT),并且它们的相对比例根据脂肪垫解剖位置而变化。在腹内、内脏脂肪垫中发现的淋巴细胞似乎是先天免疫的代表,而存在于皮下脂肪库中的淋巴细胞是适应性免疫的一部​​分,至少在小鼠中是这样。除 B 淋巴细胞外,不同淋巴细胞类别的数量和活性都在肥胖中发生改变。淋巴细胞类别的相对比例中的一些改变取决于肥胖程度,或瘦素浓度,甚至脂肪库解剖位置。最近的研究表明,淋巴细胞数量和组成的改变先于巨噬细胞增加和肥胖中发现的 WAT 炎症状态增强。淋巴细胞表达脂肪因子受体,而 WAT 中会产生几种促炎趋化因子,从而导致脂肪和免疫细胞之间错综复杂的串扰。然而,迄今为止可用的证据和争议都支持淋巴细胞参与控制 WAT 中其他细胞的数量,无论是脂肪细胞还是免疫细胞,以及它们的分泌和代谢活动。因此,免疫疗法值得被视为治疗与脂肪量过多相关的内分泌代谢紊乱的一种有前途的方法。最近的研究表明,淋巴细胞数量和组成的改变先于巨噬细胞增加和肥胖中发现的 WAT 炎症状态增强。淋巴细胞表达脂肪因子受体,而 WAT 中会产生几种促炎趋化因子,从而导致脂肪和免疫细胞之间错综复杂的串扰。然而,迄今为止可用的证据和争议都支持淋巴细胞参与控制 WAT 中其他细胞的数量,无论是脂肪细胞还是免疫细胞,以及它们的分泌和代谢活动。因此,免疫疗法值得被视为治疗与脂肪量过多相关的内分泌代谢紊乱的一种有前途的方法。最近的研究表明,淋巴细胞数量和组成的改变先于巨噬细胞增加和肥胖中发现的 WAT 炎症状态增强。淋巴细胞表达脂肪因子受体,而 WAT 中会产生几种促炎趋化因子,从而导致脂肪和免疫细胞之间错综复杂的串扰。然而,迄今为止可用的证据和争议都支持淋巴细胞参与控制 WAT 中其他细胞的数量,无论是脂肪细胞还是免疫细胞,以及它们的分泌和代谢活动。因此,免疫疗法值得被视为治疗与脂肪量过多相关的内分泌代谢紊乱的一种有前途的方法。
更新日期:2020-09-23
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