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Quantitative proteomics to study aging in rabbit spleen tissues.

Bushra Amin1, Bailey L Bowser1, Renã A S Robinson2

  • 1Department of Chemistry, Vanderbilt University, Nashville, TN 37235, United States of America.

Experimental Gerontology
|August 6, 2022
PubMed
Summary
This summary is machine-generated.

Aging degrades biological processes. Rabbits, a feasible model, show significant proteomic changes in spleen tissue related to RNA binding, DNA repair, and immunity with age.

Keywords:
AgingQuantitative proteomicsRabbitSpleencPILOT

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Area of Science:

  • Gerontology
  • Proteomics
  • Comparative Biology

Background:

  • Aging is a universal biological process causing functional decline.
  • Rabbit models offer genetic homology and shorter lifespans, suitable for aging studies.
  • Spleen tissue is a key site for immune system aging.

Purpose of the Study:

  • To investigate age-related proteomic changes in rabbit spleen tissue.
  • To demonstrate the utility of rabbits as a model for aging research.
  • To identify specific molecular pathways affected by aging in the spleen.

Main Methods:

  • Utilized a cPILOT multiplexing strategy for proteomic analysis.
  • Analyzed spleen tissues from young, middle-aged, and old rabbits.
  • Applied statistical analysis to identify age-associated protein changes (p < 0.05).

Main Results:

  • Identified 63 proteins with significant age-related changes in rabbit spleen.
  • These proteins are involved in nucleotide and RNA binding.
  • Other affected pathways include DNA repair, actin regulation, and immune system function.

Conclusions:

  • Rabbit spleen proteome exhibits significant age-dependent alterations.
  • Proteomic changes highlight roles in RNA processing, DNA repair, and immune response during aging.
  • The rabbit model effectively reveals molecular insights into aging processes.