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Exercise training partially rescues impaired mucosal associated invariant t-cell mobilization in breast cancer survivors compared to healthy older women.

Publication ,  Journal Article
Hanson, ED; Bates, LC; Harrell, EP; Bartlett, DB; Lee, JT; Wagoner, CW; Alzer, MS; Amatuli, DJ; Jensen, BC; Deal, AM; Muss, HB; Nyrop, KA ...
Published in: Exp Gerontol
September 2021

UNLABELLED: Exercise may attenuate immunosenescence with aging that appears to be accelerated following breast cancer treatment, although limited data on specific cell types exists and acute and chronic exercise have been investigated independently in older adults. PURPOSE: To determine the mucosal associated invariant T (MAIT) cell response to acute exercise before (PRE) and after (POST) 16 weeks of exercise training in breast cancer survivors (BCS) and healthy older women (CON). METHODS: Age-matched BCS and CON performed 45 min of intermittent cycling at 60% peak power output wattage. Blood samples were obtained at rest, immediately (0 h) and 1 h after exercise to determine MAIT cell counts, frequency, and intracellular cytokine expression. RESULTS: At PRE, MAIT cell counts were greater in CON (137%) than BCS at 0 h (46%, p < 0.001), with increased MAIT cell frequency in CON but not BCS. TNFα+ and IFNγ+ MAIT cell counts increased at 0 h by ~120% in CON (p < 0.001), while BCS counts and frequencies were unchanged. Similar deficits were observed in CD3+ and CD3+ CD8+ cells. At POST, exercise-induced mobilization and egress of MAIT cell counts and frequency showed trends towards improvement in BCS that approached levels in CON. Independent of group, TNFα frequency trended to improve (p = 0.053). CONCLUSIONS: MAIT mobilization in older BCS following acute exercise was attenuated; however, exercise training may partially rescue these initial deficits, including greater sensitivity to mitogenic stimulation. Using acute exercise before and after interventions provides a unique approach to identify age- and cancer-related immuno-dysfunction that is less apparent at rest.

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Published In

Exp Gerontol

DOI

EISSN

1873-6815

Publication Date

September 2021

Volume

152

Start / End Page

111454

Location

England

Related Subject Headings

  • Mucosal-Associated Invariant T Cells
  • Humans
  • Gerontology
  • Female
  • Exercise
  • Cancer Survivors
  • CD8-Positive T-Lymphocytes
  • Breast Neoplasms
  • Aged
  • 42 Health sciences
 

Citation

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Hanson, E. D., Bates, L. C., Harrell, E. P., Bartlett, D. B., Lee, J. T., Wagoner, C. W., … Battaglini, C. L. (2021). Exercise training partially rescues impaired mucosal associated invariant t-cell mobilization in breast cancer survivors compared to healthy older women. Exp Gerontol, 152, 111454. https://doi.org/10.1016/j.exger.2021.111454
Hanson, Erik D., Lauren C. Bates, Elizabeth P. Harrell, David B. Bartlett, Jordan T. Lee, Chad W. Wagoner, Mohamdod S. Alzer, et al. “Exercise training partially rescues impaired mucosal associated invariant t-cell mobilization in breast cancer survivors compared to healthy older women.Exp Gerontol 152 (September 2021): 111454. https://doi.org/10.1016/j.exger.2021.111454.
Hanson ED, Bates LC, Harrell EP, Bartlett DB, Lee JT, Wagoner CW, et al. Exercise training partially rescues impaired mucosal associated invariant t-cell mobilization in breast cancer survivors compared to healthy older women. Exp Gerontol. 2021 Sep;152:111454.
Hanson, Erik D., et al. “Exercise training partially rescues impaired mucosal associated invariant t-cell mobilization in breast cancer survivors compared to healthy older women.Exp Gerontol, vol. 152, Sept. 2021, p. 111454. Pubmed, doi:10.1016/j.exger.2021.111454.
Hanson ED, Bates LC, Harrell EP, Bartlett DB, Lee JT, Wagoner CW, Alzer MS, Amatuli DJ, Jensen BC, Deal AM, Muss HB, Nyrop KA, Battaglini CL. Exercise training partially rescues impaired mucosal associated invariant t-cell mobilization in breast cancer survivors compared to healthy older women. Exp Gerontol. 2021 Sep;152:111454.
Journal cover image

Published In

Exp Gerontol

DOI

EISSN

1873-6815

Publication Date

September 2021

Volume

152

Start / End Page

111454

Location

England

Related Subject Headings

  • Mucosal-Associated Invariant T Cells
  • Humans
  • Gerontology
  • Female
  • Exercise
  • Cancer Survivors
  • CD8-Positive T-Lymphocytes
  • Breast Neoplasms
  • Aged
  • 42 Health sciences