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Training and acute exercise modulates mitochondrial dynamics in football players’ blood mononuclear cells

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Abstract

Purpose

Regular physical activity induces oxidative stress but also causes adaptations in antioxidant defences including the nuclear factor κB (NF-κB) pathway, which activates target genes related to antioxidant defences such as uncoupling proteins (UCPs), and mitochondrial biogenesis mediated by peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α). The aim of the study was to determine the effect of long-term training and acute exercise on oxidant/antioxidant status and the expression of mitochondrial biogenesis genes in peripheral blood mononuclear cells (PBMCs).

Methods

Twelve professional football players performed an 8-week exercise programme comprising a daily 2-h football training session. Blood samples were taken before and after the training season.

Results

The results reported a significant increase in antioxidant protein levels and in mitochondrial proteins in resting conditions after the 8-week training period. PGC1α, UCP-2 and mitofusin 2 protein levels also increased after acute exercise compared to pre-exercise levels. After the training, the expression of PGC1α, cytochrome c oxidase subunit IV and mitochondrial NADH dehydrogenase subunit 5 messenger RNA (mRNA) significantly augmented after the acute physical activity compared to pre-exercise levels; while no changes occurred in these mRNA in basal conditions. NF-κB activation and ROS production reported a significant increase after acute exercise.

Conclusions

Training increases the levels of proteins related to mitochondrial biogenesis and improves the antioxidant capabilities of mitochondria in PBMCs among well-trained football players. Acute exercise may act as an inducer of mitochondrial biogenesis through NF-κB activation and PGC1α gene expression.

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Abbreviations

18S:

Ribosomal 18S

ANOVA:

Analysis of variance

BMI:

Body mass index

CAT:

Catalase

cDNA:

Complementary DNA

COX-IV:

Cytochrome c oxidase subunit IV

CuZn-SOD:

Cu/Zn superoxide dismutase

DCF:

Dichlorofluorescein

DCFH-DA:

2,7-Dichlorofluorescin-diacetate

DNA:

Desoxy-ribonucleic acid

DRP-1:

Dynamin-related protein 1

ELISA:

Enzyme-linked immunosorbent assay

FIS-1:

Fission Protein 1

HRmax :

Maximum heart rate

GPx:

Glutathione peroxidase

GTPase:

Guanosine triphosphate hydrolase

H2O2 :

Oxygen peroxide

HIIT:

High-intensity interval training session

PBMC:

Peripheral blood mononuclear cell

MAPK:

Mitogen-activated protein kinase

MAS:

Maximal aerobic speed (=vVO2max)

MitND5:

Mitochondrial NADH dehydrogenase subunit 5

Mn-SOD:

Mn superoxide dismutase

mRNA:

Messenger RNA

Mtf-1:

Mitofusin-1

Mtf-2:

Mitofusin-2

NRF-1:

Nuclear respiratory factor 1

OPA-1:

Optic atrophy protein 1

PGC-1α:

Peroxisome proliferator-activated receptor γ coactivator

PMA:

Phorbol 12-myristate 13-acetate

RIPA:

Radioimmunoprecipitation assay buffer

RNA:

Ribonucleic acid

SEM:

Standard error of the mean

SDS:

Sodium dodecylsulfate

ROS:

Reactive oxygen species

Tfam:

Mitochondrial transcription factor A

UCP-2:

Uncoupling protein 3

UCP-3:

Uncoupling protein 3

VO2max :

Maximal oxygen consumption

vVO2max :

Velocity at maximal oxygen uptake (=MAS)

WHR:

Waist–hip ratio

References

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Acknowledgements

Acción Estratégica en Salud del Ministerio de Ciencia e Innovación DPS2008-07033-C03-03, Programme of Promotion of Biomedical Research and Health Sciences (Projects PI11/01791 and PI14/00636, Red Predimed-RETIC RD06/0045/1004, CIBEROBN CB12/03/30038) and Balearic Island Government and FEDER funds (35/2011 and 23/2012). The authors hereby acknowledge the Ph.D. grant provided by the University of the Balearic Island and the FPI/1648/2014 grant provided by Conselleria d’Educació, Cultura i Universitats, Direcció General d’Universitats i Recerca, Govern de les Illes Balears.

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Correspondence to Antoni Pons.

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All authors have declared there is not any potential conflict of interests concerning this article.

Additional information

Communicated by Nicolas Place.

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Busquets-Cortés, C., Capó, X., Martorell, M. et al. Training and acute exercise modulates mitochondrial dynamics in football players’ blood mononuclear cells. Eur J Appl Physiol 117, 1977–1987 (2017). https://doi.org/10.1007/s00421-017-3684-z

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  • DOI: https://doi.org/10.1007/s00421-017-3684-z

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