Restoration of senescent human diploid fibroblasts by modulation of the extracellular matrix

Hae Ri Choi, Kyung A. Cho, Hyun Tae Kang, Jung Bin Lee, Matt Kaeberlein, Yousin Suh, In Kwon Chung, Sang Chul Park

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Human diploid fibroblasts have the capacity to complete a finite number of cell divisions before entering a state of replicative senescence characterized by growth arrest, changes in morphology, and altered gene expression. Herein, we report that interaction with extracellular matrix (ECM) from young cells is sufficient to restore aged, senescent cells to an apparently youthful state. The identity of the restored cells as having been derived from senescent cells has been confirmed by a variety of methods, including time lapse live cell imaging and DNA finger print analysis. In addition to cell morphology, phenotypic restoration was assessed by resumption of proliferative potential, growth factor responsiveness, reduction of intracellular reactive oxygen species levels, recovery of mitochondrial membrane potential, and increased telomere length. Mechanistically, we find that both Ku and SIRT1 are induced during restoration and are required for senescent cells to return to a youthful phenotype. These observations demonstrate that human cellular senescence is profoundly influenced by cues from the ECM, and that senescent cell plasticity is much greater than that was previously believed to be the case.

Original languageEnglish (US)
Pages (from-to)148-157
Number of pages10
JournalAging Cell
Volume10
Issue number1
DOIs
StatePublished - Feb 2011

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Diploidy
Extracellular Matrix
Fibroblasts
Cell Aging
Mitochondrial Membrane Potential
Telomere
Cell Division
Fingers
Cues
Reactive Oxygen Species
Intercellular Signaling Peptides and Proteins
Phenotype
Gene Expression
DNA
Growth

Keywords

  • Aging
  • Cellular senescence
  • Extra cellular matrix
  • Ku70
  • SIRT1

ASJC Scopus subject areas

  • Cell Biology
  • Aging

Cite this

Choi, H. R., Cho, K. A., Kang, H. T., Lee, J. B., Kaeberlein, M., Suh, Y., ... Park, S. C. (2011). Restoration of senescent human diploid fibroblasts by modulation of the extracellular matrix. Aging Cell, 10(1), 148-157. https://doi.org/10.1111/j.1474-9726.2010.00654.x

Restoration of senescent human diploid fibroblasts by modulation of the extracellular matrix. / Choi, Hae Ri; Cho, Kyung A.; Kang, Hyun Tae; Lee, Jung Bin; Kaeberlein, Matt; Suh, Yousin; Chung, In Kwon; Park, Sang Chul.

In: Aging Cell, Vol. 10, No. 1, 02.2011, p. 148-157.

Research output: Contribution to journalArticle

Choi, HR, Cho, KA, Kang, HT, Lee, JB, Kaeberlein, M, Suh, Y, Chung, IK & Park, SC 2011, 'Restoration of senescent human diploid fibroblasts by modulation of the extracellular matrix', Aging Cell, vol. 10, no. 1, pp. 148-157. https://doi.org/10.1111/j.1474-9726.2010.00654.x
Choi, Hae Ri ; Cho, Kyung A. ; Kang, Hyun Tae ; Lee, Jung Bin ; Kaeberlein, Matt ; Suh, Yousin ; Chung, In Kwon ; Park, Sang Chul. / Restoration of senescent human diploid fibroblasts by modulation of the extracellular matrix. In: Aging Cell. 2011 ; Vol. 10, No. 1. pp. 148-157.
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