| RRC ID |
87158
|
| 著者 |
Fang Y, Peck MR, Quinn K, Chapman JE, Medina D, McFadden SA, Bartke A, Hascup ER, Hascup KN.
|
| タイトル |
Senolytic intervention improves cognition, metabolism, and adiposity in female APPNL-F/NL-F mice.
|
| ジャーナル |
Geroscience
|
| Abstract |
Senescent cells accumulate throughout the body and brain contributing to unhealthy aging and Alzheimer's disease (AD). The APPNL-F/NL-F amyloidogenic AD mouse model exhibits increased markers of senescent cells and the senescence-associated secretory phenotype (SASP) in visceral white adipose tissue and the hippocampus before plaque accumulation and cognitive decline. We hypothesized that senolytic intervention would alleviate cellular senescence thereby improving spatial memory in APPNL-F/NL-F mice. Thus, 4-month-old male and female APPNL-F/NL-F mice were treated monthly with vehicle, 5 mg/kg dasatinib + 50 mg/kg quercetin, or 100 mg/kg fisetin. Blood glucose levels, energy metabolism, spatial memory, amyloid burden, and senescent cell markers were assayed. Dasatinib + quercetin treatment in female APPNL-F/NL-F mice increased oxygen consumption and energy expenditure resulting in decreased body mass. White adipose tissue mass was decreased along with senescence markers, SASP, blood glucose, and plasma insulin and triglycerides. Hippocampal senescence markers and SASP were reduced along with soluble and insoluble amyloid-β (Aβ)42 and senescence-associated-β-gal activity leading to improved spatial memory. Fisetin had negligible effects on these measures in female APPNL-F/NL-F mice while neither senolytic intervention altered these parameters in the male mice. Considering women have a greater risk of dementia, identifying senotherapeutics appropriate for sex and disease stage is necessary for personalized medicine.
|
| 巻・号 |
47(1)
|
| ページ |
1123-1138
|
| 公開日 |
2025-2-1
|
| DOI |
10.1007/s11357-024-01308-8
|
| PII |
10.1007/s11357-024-01308-8
|
| PMID |
39120687
|
| PMC |
PMC11872876
|
| MeSH |
Adiposity* / drug effects
Alzheimer Disease* / drug therapy
Alzheimer Disease* / metabolism
Amyloid beta-Peptides / metabolism
Animals
Blood Glucose
Cellular Senescence / drug effects
Cognition* / drug effects
Dasatinib* / pharmacology
Disease Models, Animal
Energy Metabolism / drug effects
Female
Flavonoids / pharmacology
Flavonols
Hippocampus / drug effects
Hippocampus / metabolism
Male
Mice
Mice, Transgenic
Quercetin / pharmacology
Senotherapeutics* / pharmacology
Spatial Memory / drug effects
|
| リソース情報 |
| 実験動物マウス |
RBRC06343 |
