Targeted Apoptosis of Senescent Cells Restores Tissue Homeostasis in Response to Chemotoxicity and Aging. Baar, M. P., Brandt, R. M., Putavet, D. A., Klein, J. D., Derks, K. W., Bourgeois, B. R., Stryeck, S., Rijksen, Y., van Willigenburg, H., Feijtel, D. A., van der Pluijm, I., Essers, J., van Cappellen, W. A., van IJcken, W. F., Houtsmuller, A. B., Pothof, J., de Bruin, R. W., Madl, T., Hoeijmakers, J. H., Campisi, J., & de Keizer, P. L. Cell, 169(1):132–147.e16, March, 2017. ![Targeted Apoptosis of Senescent Cells Restores Tissue Homeostasis in Response to Chemotoxicity and Aging [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex The accumulation of irreparable cellular damage restricts healthspan after acute stress or natural aging. Senescent cells are thought to impair tissue function, and their genetic clearance can delay features of aging. Identifying how senescent cells avoid apoptosis allows for the prospective design of anti-senescence compounds to address whether homeostasis can also be restored. Here, we identify FOXO4 as a pivot in senescent cell viability. We designed a FOXO4 peptide that perturbs the FOXO4 interaction with p53. In senescent cells, this selectively causes p53 nuclear exclusion and cell-intrinsic apoptosis. Under conditions where it was well tolerated in vivo, this FOXO4 peptide neutralized doxorubicin-induced chemotoxicity. Moreover, it restored fitness, fur density, and renal function in both fast aging XpdTTD/TTD and naturally aged mice. Thus, therapeutic targeting of senescent cells is feasible under conditions where loss of health has already occurred, and in doing so tissue homeostasis can effectively be restored.
@article{baar_targeted_2017,
title = {Targeted {Apoptosis} of {Senescent} {Cells} {Restores} {Tissue} {Homeostasis} in {Response} to {Chemotoxicity} and {Aging}},
volume = {169},
issn = {00928674},
url = {https://linkinghub.elsevier.com/retrieve/pii/S0092867417302465},
doi = {10.1016/j.cell.2017.02.031},
abstract = {The accumulation of irreparable cellular damage restricts healthspan after acute stress or natural aging. Senescent cells are thought to impair tissue function, and their genetic clearance can delay features of aging. Identifying how senescent cells avoid apoptosis allows for the prospective design of anti-senescence compounds to address whether homeostasis can also be restored. Here, we identify FOXO4 as a pivot in senescent cell viability. We designed a FOXO4 peptide that perturbs the FOXO4 interaction with p53. In senescent cells, this selectively causes p53 nuclear exclusion and cell-intrinsic apoptosis. Under conditions where it was well tolerated in vivo, this FOXO4 peptide neutralized doxorubicin-induced chemotoxicity. Moreover, it restored fitness, fur density, and renal function in both fast aging XpdTTD/TTD and naturally aged mice. Thus, therapeutic targeting of senescent cells is feasible under conditions where loss of health has already occurred, and in doing so tissue homeostasis can effectively be restored.},
language = {en},
number = {1},
urldate = {2023-04-02},
journal = {Cell},
author = {Baar, Marjolein P. and Brandt, Renata M.C. and Putavet, Diana A. and Klein, Julian D.D. and Derks, Kasper W.J. and Bourgeois, Benjamin R.M. and Stryeck, Sarah and Rijksen, Yvonne and van Willigenburg, Hester and Feijtel, Danny A. and van der Pluijm, Ingrid and Essers, Jeroen and van Cappellen, Wiggert A. and van IJcken, Wilfred F. and Houtsmuller, Adriaan B. and Pothof, Joris and de Bruin, Ron W.F. and Madl, Tobias and Hoeijmakers, Jan H.J. and Campisi, Judith and de Keizer, Peter L.J.},
month = mar,
year = {2017},
pages = {132--147.e16},
}
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Senescent cells are thought to impair tissue function, and their genetic clearance can delay features of aging. Identifying how senescent cells avoid apoptosis allows for the prospective design of anti-senescence compounds to address whether homeostasis can also be restored. Here, we identify FOXO4 as a pivot in senescent cell viability. We designed a FOXO4 peptide that perturbs the FOXO4 interaction with p53. In senescent cells, this selectively causes p53 nuclear exclusion and cell-intrinsic apoptosis. Under conditions where it was well tolerated in vivo, this FOXO4 peptide neutralized doxorubicin-induced chemotoxicity. Moreover, it restored fitness, fur density, and renal function in both fast aging XpdTTD/TTD and naturally aged mice. 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