Abstract

Perspectives on cellular senescence and short term dietary restriction in adults

Highlights

  • Recent evidence supports the contention that cellular senescence is associated with, and may even be a cause of age-related functional impairment

  • Cellular senescence causes a variety of cell types to acquire a pro-inflammatory secretory phenotype that produce a variety of cytokines, chemokines, and extracellular matrix remodeling proteases that are associated with tissue destruction [2,3,4,5]

  • Engineered deposition of senescent cells in a single organ, skin, can cause functional impairments in multiple organs similar to those occurring with aging [8]

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Summary

Introduction

Recent evidence supports the contention that cellular senescence is associated with, and may even be a cause of age-related functional impairment. In an important study in this journal, Wang et al found short term dietary restriction in middle-aged mice is associated with decreased abundance of senescent cells in the liver (centrilobular hepatocytes) and intestine (crypt enterocytes) [13]. The relatively short period of caloric restriction resulted in a 3.3 to 6.5% decrease in senescent cell abundance as a function of total cell number.

Results
Conclusion

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