Decreased Neuron Number and Synaptic Plasticity in SIRT3-Knockout Mice with Poor Remote Memory
- 주제(키워드) Sirtuin , Neurodegeneration , Remote memory , Synaptic plasticity
- 주제(기타) Biochemistry & Molecular Biology; Neurosciences
- 설명문(일반) [Kim, Hyopil; Kim, Somi; Choi, Ja Eun; Han, DaeHee; Koh, Soo Min; Kaang, Bong-Kiun] Seoul Natl Univ, Coll Nat Sci, Sch Biol Sci, Lab Neurobiol, Seoul 08826, South Korea; [Kim, Hyun-Seok] Ewha Womans Univ, Res Ctr Cellular Homeostasis, Seoul 03760, South Korea
- 등재 SCIE, SCOPUS
- 발행기관 SPRINGER/PLENUM PUBLISHERS
- 발행년도 2019
- URI http://www.dcollection.net/handler/ewha/000000160259
- 본문언어 영어
- Published As http://dx.doi.org/10.1007/s11064-017-2417-3
- PubMed https://pubmed.ncbi.nlm.nih.gov/29076061
초록/요약
The sirtuin family of proteins consists of nicotinamide adenine dinucleotide-dependent deacetylases that are involved in the response to calorie restriction and various physiological phenomena, such as aging and cognition. One of these proteins, sirtuin 3 (SIRT3), is localized in the mitochondria and protects the cell against oxidative or metabolic stress. Sirtuin protein deficiencies have been shown to accelerate neurodegeneration in neurotoxic conditions. The mechanisms underlying the involvement of SIRT3 in cognition remain unclear. Interestingly, SIRT1, another member of the sirtuin family, has been reported to modulate synaptic plasticity and memory formation. To learn more about these proteins, we examined the behavior and cognitive functions of Sirt3-knockout mice. The mice exhibited poor remote memory. Consistent with this, long-term potentiation was impaired in the Sirt3-knockout mice, and they exhibited decreased neuronal number in the anterior cingulate cortex, which seemed to contribute to their memory deficiencies.
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