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一场超长耐力赛事会导致赛后48小时恢复期循环调节性T细胞、CD4+初始T细胞和CD8+效应记忆T细胞发生变化。

An ultra-endurance event leads to changes in circulating regulatory T-cells, CD4+ naïve and CD8+ effector memory T-cells in the 48 h post-race recovery period.

作者信息

Lithgow Hannah, Gibson Laura, Wilson Russell, Guthrie Neil, Ingram-Sills Lesley, Clifford Tom, Ross Mark

机构信息

School of Energy, Geoscience, Infrastructure and Society, Institute of Life and Earth Sciences, Heriot-Watt University, JMF7, Edinburgh, EH14 4AS, UK.

School of Applied Sciences, Edinburgh Napier University, Edinburgh, UK.

出版信息

Eur J Appl Physiol. 2025 Apr;125(4):1129-1138. doi: 10.1007/s00421-024-05677-y. Epub 2024 Nov 27.

DOI:10.1007/s00421-024-05677-y
PMID:39604770
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11950060/
Abstract

PURPOSE

Exercise is known to acutely affect T-lymphocyte populations in the peripheral blood, which is intensity- and duration-dependent. However, effects of longer duration endurance exercise (>5 h) on T-cells in the days following are unknown. The aim of this study was to investigate the circulating T-cell changes that occur in response to an ultra-endurance event, which may provide insight into the inflammatory response to ultra-endurance exercise.

METHODS

Ten individuals (m = 7, f = 3) completing an Ironman 70.3 event volunteered for the study. Peripheral blood samples were taken 1-2 days pre-race (PRE-RACE), and 1 day (RACE + 1) and 2 days (RACE + 2) post-race, with circulating T-cells enumerated by flow cytometry (total CD3+, CD4+ and CD8+ T-cells, regulatory T-cells [CD4+CD25+CD127-; T], naïve [CD27+CD45RA+; NA], central memory [CD27+CD45RA-; CM], effector memory [CD27-CD45RA-; EM], and effector memory CD45RA+ [CD27-CD45RA+; EMRA]).

RESULTS

There were no changes in total CD3+, CD4+ and CD8+ T-cells. T RACE + 1 was significantly higher compared to PRE-RACE, as were the proportion of CD4+ NA cells and CD8+ CM cells at RACE + 2; CD8+ EM cells fell at RACE + 2 (absolute counts and proportion).

CONCLUSION

In conclusion, the ultra-endurance event evoked T-cell changes over the 48 h recovery period, with an increase in T-cells that regulate the immune response, and a reduction in circulating EM T-cells, most likely trafficked to sites of tissue damage and inflammation.

摘要

目的

已知运动能急性影响外周血中的T淋巴细胞群体,且这种影响取决于运动强度和持续时间。然而,持续时间较长的耐力运动(>5小时)在随后几天对T细胞的影响尚不清楚。本研究的目的是调查超耐力赛事后循环T细胞的变化,这可能有助于深入了解对超耐力运动的炎症反应。

方法

十名完成铁人70.3赛事的个体(男性=7名,女性=3名)自愿参与本研究。在赛前1 - 2天(赛前)、赛后1天(赛后+1)和2天(赛后+2)采集外周血样本,通过流式细胞术对循环T细胞进行计数(总CD3 +、CD4 +和CD8 + T细胞、调节性T细胞[CD4 + CD25 + CD127 -;T]、初始T细胞[CD27 + CD45RA +;NA]、中央记忆T细胞[CD27 + CD45RA -;CM]、效应记忆T细胞[CD27 - CD45RA -;EM]和效应记忆CD45RA + T细胞[CD27 - CD45RA +;EMRA])。

结果

总CD3 +、CD4 +和CD8 + T细胞无变化。赛后+1时T细胞显著高于赛前,赛后+2时CD4 + NA细胞和CD8 + CM细胞的比例也显著高于赛前;赛后+2时CD8 + EM细胞减少(绝对计数和比例)。

结论

总之,超耐力赛事在48小时恢复期内引起了T细胞变化,调节免疫反应的T细胞增加,循环EM T细胞减少,这些细胞很可能迁移到组织损伤和炎症部位。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a284/11950060/5f16895bdea9/421_2024_5677_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a284/11950060/09f1e80cdc2d/421_2024_5677_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a284/11950060/7a919de6d9da/421_2024_5677_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a284/11950060/11376d68c984/421_2024_5677_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a284/11950060/5f16895bdea9/421_2024_5677_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a284/11950060/09f1e80cdc2d/421_2024_5677_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a284/11950060/7a919de6d9da/421_2024_5677_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a284/11950060/11376d68c984/421_2024_5677_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a284/11950060/5f16895bdea9/421_2024_5677_Fig4_HTML.jpg

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