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    Publication Date: 2011-09-03
    Description: In the central nervous system, ageing results in a precipitous decline in adult neural stem/progenitor cells and neurogenesis, with concomitant impairments in cognitive functions. Interestingly, such impairments can be ameliorated through systemic perturbations such as exercise. Here, using heterochronic parabiosis we show that blood-borne factors present in the systemic milieu can inhibit or promote adult neurogenesis in an age-dependent fashion in mice. Accordingly, exposing a young mouse to an old systemic environment or to plasma from old mice decreased synaptic plasticity, and impaired contextual fear conditioning and spatial learning and memory. We identify chemokines--including CCL11 (also known as eotaxin)--the plasma levels of which correlate with reduced neurogenesis in heterochronic parabionts and aged mice, and the levels of which are increased in the plasma and cerebrospinal fluid of healthy ageing humans. Lastly, increasing peripheral CCL11 chemokine levels in vivo in young mice decreased adult neurogenesis and impaired learning and memory. Together our data indicate that the decline in neurogenesis and cognitive impairments observed during ageing can be in part attributed to changes in blood-borne factors.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3170097/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3170097/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Villeda, Saul A -- Luo, Jian -- Mosher, Kira I -- Zou, Bende -- Britschgi, Markus -- Bieri, Gregor -- Stan, Trisha M -- Fainberg, Nina -- Ding, Zhaoqing -- Eggel, Alexander -- Lucin, Kurt M -- Czirr, Eva -- Park, Jeong-Soo -- Couillard-Despres, Sebastien -- Aigner, Ludwig -- Li, Ge -- Peskind, Elaine R -- Kaye, Jeffrey A -- Quinn, Joseph F -- Galasko, Douglas R -- Xie, Xinmin S -- Rando, Thomas A -- Wyss-Coray, Tony -- 1 F31 AG034045-01/AG/NIA NIH HHS/ -- 1 F31 NS066676-01A1/NS/NINDS NIH HHS/ -- DP1 OD000392/OD/NIH HHS/ -- DP1 OD000392-01/OD/NIH HHS/ -- DP1 OD000392-02/OD/NIH HHS/ -- DP1 OD000392-03/OD/NIH HHS/ -- DP1 OD000392-04/OD/NIH HHS/ -- DP1 OD000392-05/OD/NIH HHS/ -- F31 AG034045/AG/NIA NIH HHS/ -- F31 AG034045-01/AG/NIA NIH HHS/ -- F31 AG034045-02/AG/NIA NIH HHS/ -- F31 AG034045-03/AG/NIA NIH HHS/ -- P30AG08017/AG/NIA NIH HHS/ -- P50 AG005136/AG/NIA NIH HHS/ -- R01 AG027505/AG/NIA NIH HHS/ -- R01 AG027505-01A1/AG/NIA NIH HHS/ -- R01 AG027505-02/AG/NIA NIH HHS/ -- R01 AG027505-03/AG/NIA NIH HHS/ -- R01 AG027505-04/AG/NIA NIH HHS/ -- R01 AG027505-05/AG/NIA NIH HHS/ -- R01 AR056849/AR/NIAMS NIH HHS/ -- R01 MH078194/MH/NIMH NIH HHS/ -- R01AG027505/AG/NIA NIH HHS/ -- T32 AI007290/AI/NIAID NIH HHS/ -- England -- Nature. 2011 Aug 31;477(7362):90-4. doi: 10.1038/nature10357.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21886162" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; Animals ; Chemokine CCL11/blood/cerebrospinal fluid/metabolism/pharmacology ; Chemokines/*blood/cerebrospinal fluid/*metabolism ; Female ; Learning/drug effects/*physiology ; Learning Disorders/blood/cerebrospinal fluid/physiopathology ; Male ; Memory Disorders/blood/cerebrospinal fluid/physiopathology ; Mice ; Mice, Inbred C57BL ; Neurogenesis/drug effects/*physiology ; Parabiosis ; Plasma/chemistry ; Time Factors
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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