机构:[1]State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China[2]State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China[3]Advanced Innovation Center for Human Brain Protection, National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital Capital Medical University, Beijing 100053, China首都医科大学宣武医院国家老年疾病临床医学研究中心科技平台衰老与再生研究中心科技平台[4]CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China[5]Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China[6]University of Chinese Academy of Sciences, Beijing 100049, China[7]China National Center for Bioinformation, Beijing 100101, China[8]Aging Translational Medicine Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China首都医科大学宣武医院[9]Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China神经科系统神经外科首都医科大学宣武医院[10]Sino-Danish College, University of Chinese Academy of Sciences, Beijing 101408, China[11]Sino-Danish Center for Education and Research, Beijing 101408, China[12]Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Peking University Third Hospital, Beijing 100191, China[13]Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China[14]Stem Cell Research Center, Peking University Third Hospital, Beijing 100191, China[15]Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, USA
The hippocampus plays a crucial role in learning and memory, and its progressive deterioration with age is functionally linked to a variety of human neurodegenerative diseases. Yet a systematic profiling of the aging effects on various hippocampal cell types in primates is still missing. Here, we reported a variety of new aging-associated phenotypic changes of the primate hippocampus. These include, in particular, increased DNA damage and heterochromatin erosion with time, alongside loss of proteostasis and elevated inflammation. To understand their cellular and molecular causes, we established the first single-nucleus transcriptomic atlas of primate hippocampal aging. Among the 12 identified cell types, neural transiently amplifying progenitor cell (TAPC) and microglia were most affected by aging. In-depth dissection of gene-expression dynamics revealed impaired TAPC division and compromised neuronal function along the neurogenesis trajectory; additionally elevated pro-inflammatory responses in the aged microglia and oligodendrocyte, as well as dysregulated coagulation pathways in the aged endothelial cells may contribute to a hostile microenvironment for neurogenesis. This rich resource for understanding primate hippocampal aging may provide potential diagnostic biomarkers and therapeutic interventions against age-related neurodegenerative diseases.
基金:
This work was supported by the National Key Research and
Development Program of China (2020YFA0804000), the Strategic
Priority Research Program of the Chinese Academy of Sciences
(XDA16010000), the National Key Research and Development
Program of China (2019YFA0110100, 2020YFA0112201, 2018YFC2000100, 2017YFA0103304, 2017YFA0102802, 2018Y
FA0107203, 2020YFA0803401, and 2019YFA0802202), the National
Natural Science Foundation of China (Grant Nos. 81921006,
81625009, 91749202, 81861168034, 91949209, 92049304,
81822018, 82071588, 92049116, 31900523, 32000500, 31970597,
82030037, and 81801534), the Program of the Beijing Municipal
Science and Technology Commission (Z191100001519005), Beijing
Natural Science Foundation (Z190019), the Key Research Program of
the Chinese Academy of Sciences (KFZD-SW-221), K. C. Wong
Education Foundation (GJTD-2019-06, GJTD-2019-08), the International
Partnership Program of Chinese Academy of Sciences
(152111KYSB20160004), the Non-profit Central Research Institute
Fund of Chinese Academy of Medical Sciences (2020-JKCS-011), the
State Key Laboratory of Stem Cell and Reproductive Biology, the State
Key Laboratory of Membrane Biology, the Milky Way Research
Foundation (MWRF), and the Moxie Foundation (for J.C.I.B.).
第一作者机构:[1]State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China[6]University of Chinese Academy of Sciences, Beijing 100049, China
共同第一作者:
通讯作者:
通讯机构:[1]State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China[2]State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China[3]Advanced Innovation Center for Human Brain Protection, National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital Capital Medical University, Beijing 100053, China[5]Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China[6]University of Chinese Academy of Sciences, Beijing 100049, China[8]Aging Translational Medicine Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China[13]Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China