The Senolytic Drug Fisetin Attenuates Bone Degeneration in the Zmpste24−/− Progeria Mouse Model

Aging leads to several geriatric conditions including osteoporosis (OP) and associated frailty syndrome. Treatments for these conditions are limited and none target fundamental drivers of pathology, and thus identifying strategies to delay progressive loss of tissue homeostasis and functional reserv...

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Main Authors: William S. Hambright, Xiaodong Mu, Xueqin Gao, Ping Guo, Yohei Kawakami, John Mitchell, Michael Mullen, Anna-Laura Nelson, Chelsea Bahney, Haruki Nishimura, Justin Hellwinkel, Andrew Eck, Johnny Huard
Format: Article
Language:English
Published: Wiley 2023-01-01
Series:Journal of Osteoporosis
Online Access:http://dx.doi.org/10.1155/2023/5572754
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author William S. Hambright
Xiaodong Mu
Xueqin Gao
Ping Guo
Yohei Kawakami
John Mitchell
Michael Mullen
Anna-Laura Nelson
Chelsea Bahney
Haruki Nishimura
Justin Hellwinkel
Andrew Eck
Johnny Huard
author_facet William S. Hambright
Xiaodong Mu
Xueqin Gao
Ping Guo
Yohei Kawakami
John Mitchell
Michael Mullen
Anna-Laura Nelson
Chelsea Bahney
Haruki Nishimura
Justin Hellwinkel
Andrew Eck
Johnny Huard
author_sort William S. Hambright
collection DOAJ
description Aging leads to several geriatric conditions including osteoporosis (OP) and associated frailty syndrome. Treatments for these conditions are limited and none target fundamental drivers of pathology, and thus identifying strategies to delay progressive loss of tissue homeostasis and functional reserve will significantly improve quality of life in elderly individuals. A fundamental property of aging is the accumulation of senescent cells. Senescence is a cell state defined by loss of proliferative capacity, resistance to apoptosis, and the release of a proinflammatory and anti-regenerative senescence-associated secretory phenotype (SASP). The accumulation of senescent cells and SASP factors is thought to significantly contribute to systemic aging. Senolytics—compounds which selectively target and kill senescent cells—have been characterized to target and inhibit anti-apoptotic pathways that are upregulated during senescence, which can elicit apoptosis in senescent cells and relieve SASP production. Senescent cells have been linked to several age-related pathologies including bone density loss and osteoarthritis in mice. Previous studies in murine models of OP have demonstrated that targeting senescent cells pharmacologically with senolytic drugs can reduce symptomology of the disease. Here, we demonstrate the efficacy of senolytic drugs (dasatinib, quercetin, and fisetin) to improve age-associated degeneration in bone using the Zmpste24−/− (Z24−/−) progeria murine system for Hutchinson–Gilford progeria syndrome (HGPS). We found that the combination of dasatinib plus quercetin could not significantly mitigate trabecular bone loss although fisetin administration could reduce bone density loss in the accelerated aging Z24−/− model. Furthermore, the overt bone density loss observed in the Z24−/− model reported herein highlights the Z24 model as a translational model to recapitulate alterations in bone density associated with advanced age. Consistent with the “geroscience hypothesis,” these data demonstrate the utility of targeting a fundamental driver of systemic aging (senescent cell accumulation) to alleviate a common condition with age, bone deterioration.
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spelling doaj-art-2beef3c3f7ee472b8101fa6693ed2c822025-08-20T02:04:49ZengWileyJournal of Osteoporosis2042-00642023-01-01202310.1155/2023/5572754The Senolytic Drug Fisetin Attenuates Bone Degeneration in the Zmpste24−/− Progeria Mouse ModelWilliam S. Hambright0Xiaodong Mu1Xueqin Gao2Ping Guo3Yohei Kawakami4John Mitchell5Michael Mullen6Anna-Laura Nelson7Chelsea Bahney8Haruki Nishimura9Justin Hellwinkel10Andrew Eck11Johnny Huard12Steadman Philippon Research InstituteSteadman Philippon Research InstituteSteadman Philippon Research InstituteSteadman Philippon Research InstituteDepartment of Orthopaedic SurgerySteadman Philippon Research InstituteSteadman Philippon Research InstituteSteadman Philippon Research InstituteSteadman Philippon Research InstituteSteadman Philippon Research InstituteDepartment of Orthopedic SurgeryDepartment of Orthopaedic SurgerySteadman Philippon Research InstituteAging leads to several geriatric conditions including osteoporosis (OP) and associated frailty syndrome. Treatments for these conditions are limited and none target fundamental drivers of pathology, and thus identifying strategies to delay progressive loss of tissue homeostasis and functional reserve will significantly improve quality of life in elderly individuals. A fundamental property of aging is the accumulation of senescent cells. Senescence is a cell state defined by loss of proliferative capacity, resistance to apoptosis, and the release of a proinflammatory and anti-regenerative senescence-associated secretory phenotype (SASP). The accumulation of senescent cells and SASP factors is thought to significantly contribute to systemic aging. Senolytics—compounds which selectively target and kill senescent cells—have been characterized to target and inhibit anti-apoptotic pathways that are upregulated during senescence, which can elicit apoptosis in senescent cells and relieve SASP production. Senescent cells have been linked to several age-related pathologies including bone density loss and osteoarthritis in mice. Previous studies in murine models of OP have demonstrated that targeting senescent cells pharmacologically with senolytic drugs can reduce symptomology of the disease. Here, we demonstrate the efficacy of senolytic drugs (dasatinib, quercetin, and fisetin) to improve age-associated degeneration in bone using the Zmpste24−/− (Z24−/−) progeria murine system for Hutchinson–Gilford progeria syndrome (HGPS). We found that the combination of dasatinib plus quercetin could not significantly mitigate trabecular bone loss although fisetin administration could reduce bone density loss in the accelerated aging Z24−/− model. Furthermore, the overt bone density loss observed in the Z24−/− model reported herein highlights the Z24 model as a translational model to recapitulate alterations in bone density associated with advanced age. Consistent with the “geroscience hypothesis,” these data demonstrate the utility of targeting a fundamental driver of systemic aging (senescent cell accumulation) to alleviate a common condition with age, bone deterioration.http://dx.doi.org/10.1155/2023/5572754
spellingShingle William S. Hambright
Xiaodong Mu
Xueqin Gao
Ping Guo
Yohei Kawakami
John Mitchell
Michael Mullen
Anna-Laura Nelson
Chelsea Bahney
Haruki Nishimura
Justin Hellwinkel
Andrew Eck
Johnny Huard
The Senolytic Drug Fisetin Attenuates Bone Degeneration in the Zmpste24−/− Progeria Mouse Model
Journal of Osteoporosis
title The Senolytic Drug Fisetin Attenuates Bone Degeneration in the Zmpste24−/− Progeria Mouse Model
title_full The Senolytic Drug Fisetin Attenuates Bone Degeneration in the Zmpste24−/− Progeria Mouse Model
title_fullStr The Senolytic Drug Fisetin Attenuates Bone Degeneration in the Zmpste24−/− Progeria Mouse Model
title_full_unstemmed The Senolytic Drug Fisetin Attenuates Bone Degeneration in the Zmpste24−/− Progeria Mouse Model
title_short The Senolytic Drug Fisetin Attenuates Bone Degeneration in the Zmpste24−/− Progeria Mouse Model
title_sort senolytic drug fisetin attenuates bone degeneration in the zmpste24 progeria mouse model
url http://dx.doi.org/10.1155/2023/5572754
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