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Prematurely aging female mice improve their behavioural response, immunity, redox state, and lifespan after a short social interaction with non-prematurely aging mice

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Abstract

Adult prematurely aging mice (PAM), characterized by inadequate stress response, show premature immunosenescence and shorter lifespan compared to adult exceptional non-PAM (E-NPAM). Aging can be influenced by lifestyle factors, such as social environment. The continuous cohabitation of female PAM with E-NPAM improved behavioral responses, immunity, redox state, and longevity of PAM, but caused deterioration in E-NPAM. The objective of this study was to investigate whether the social interaction of only 15 min/day for 2 months of PAM with E-NPAM, can produce that improvement in PAM without causing deterioration in E-NPAM. After that short social interaction PAM and E-NPAM were submitted to behavioral tests and peritoneal leukocytes were collected to assess immune functions, oxidative and inflammatory state parameters as well as catecholamine concentrations. The lifespan of each animal was recorded. Plasmatic concentration of oxytocin was also studied. Results showed that PAM presented better behavioral responses, immunity and oxi-inflammatory state after interacting with E-NPAM, and consequently a longer lifespan. E-NPAM, in general, did not show any changes after interaction with PAM, not affecting their longevity either. In conclusion, a short social interaction between PAM and E-NPAM could be an excellent strategy for improving the health state and longevity of PAM without causing deleterious effect on E-NPAM.

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Data availability

All material used and data generated or analyzed during this study are included in this published article.

Code availability

Non applicable.

Abbreviations

BCA:

Bicinchoninic acid

BHT:

Butylated hydroxy-toluene

c.p.m.:

Counts per minute

CI:

Chemotaxis index

ConA:

Concanavalin A

DP:

Dopamine

E:

Epinephrine

EDTA:

Ethylenediaminetetraacetic acid

E-NPAM SI:

E-NPAM that interacted socially (SI) 15 minutes each day with PAM

E-NPAM:

Exceptional non-prematurely aging mice

E-NPAMC:

E-NPAM control group

fMLP:

N-Formyl methionyl-leucyl-phenylalanine

GPx:

Glutathione peroxidase

GR:

Glutathione reductase

GSH:

Reduced glutathione

GSSG:

Oxidized glutathione

LDH:

Lactate dehydrogenase

LPS:

Lipopolysaccharide

MIF:

Macrophage migration inhibitory factor

NADPH:

Nicotinamide adenine dinucleotide phosphate

NE:

Norepinephrine

NEM:

N-ethylmaleimide

NK:

Natural killer

OPT:

O-phthalaldehyde

PAM SI:

PAM that interacted socially 15 minutes each day with adult animals

PAM:

Prematurely aging mice

PAMC:

PAM control group

PBS:

Phosphate buffer saline

PE:

Phagocytic efficacy

PI:

Phagocytic index

RPMI:

Roswll Park Mermorial Institute culture medium

SD:

Standard deviation

TBA:

Thiobarbituric acid

TBARS:

Thiobarbituric acid reactive substances

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Acknowledgements

We would also like to thank Allison Teichman for her critical proofreading of the English language of the manuscript.

Funding

This work was supported by the Research Group UCM (910379) to Mónica De la Fuente.

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Authors and Affiliations

Authors

Contributions

Conceptualization: MF; methodology: ED-DC and JF; data curation: ED-DC; writing—original draft preparation: ED-DC; writing—review and editing: MF, ED-DC and JF. All authors have read and agreed to the published version of the manuscript.

Corresponding author

Correspondence to M. De la Fuente.

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Conflict of interest

The authors declare no have conflict of interest.

Ethical approval

The protocol was approved by the Committee on Animal Experimentation of the Complutense University of Madrid (PROEX. 224.0/21)., and the animals were treated in accordance with the guidelines of Royal Decree 53/2013 of 1 February 2013 (BOE No. 34) on the protection of animals used for experimentation and other scientific purposes.

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Cerro, E.DD., Félix, J. & De la Fuente, M. Prematurely aging female mice improve their behavioural response, immunity, redox state, and lifespan after a short social interaction with non-prematurely aging mice. Biogerontology 23, 307–324 (2022). https://doi.org/10.1007/s10522-022-09968-9

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  • DOI: https://doi.org/10.1007/s10522-022-09968-9

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