Publication Date:
2014-08-26
Description:
Aging-associated cognitive decline is affected by factors produced inside and outside the brain. By using multiorgan genome-wide analysis of aged mice, we found that the choroid plexus, an interface between the brain and the circulation, shows a type I interferon (IFN-I)-dependent gene expression profile that was also found in aged human brains. In aged mice, this response was induced by brain-derived signals, present in the cerebrospinal fluid. Blocking IFN-I signaling within the aged brain partially restored cognitive function and hippocampal neurogenesis and reestablished IFN-II-dependent choroid plexus activity, which is lost in aging. Our data identify a chronic aging-induced IFN-I signature, often associated with antiviral response, at the brain's choroid plexus and demonstrate its negative influence on brain function, thereby suggesting a target for ameliorating cognitive decline in aging.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baruch, Kuti -- Deczkowska, Aleksandra -- David, Eyal -- Castellano, Joseph M -- Miller, Omer -- Kertser, Alexander -- Berkutzki, Tamara -- Barnett-Itzhaki, Zohar -- Bezalel, Dana -- Wyss-Coray, Tony -- Amit, Ido -- Schwartz, Michal -- AG045034/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2014 Oct 3;346(6205):89-93. doi: 10.1126/science.1252945. Epub 2014 Aug 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Weizmann Institute of Science, Rehovot 76100, Israel. ; Department of Immunology, Weizmann Institute of Science, Rehovot 76100, Israel. ; Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA 94305, USA. ; Department of Immunology, Weizmann Institute of Science, Rehovot 76100, Israel. michal.schwartz@weizmann.ac.il ido.amit@weizmann.ac.il. ; Department of Neurobiology, Weizmann Institute of Science, Rehovot 76100, Israel. michal.schwartz@weizmann.ac.il ido.amit@weizmann.ac.il.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25147279" target="_blank"〉PubMed〈/a〉
Keywords:
Aging/genetics/*pathology
;
Animals
;
Brain/*physiology
;
Choroid Plexus/*metabolism
;
*Cognition
;
*Gene Expression Regulation
;
Hippocampus/cytology
;
Interferon Regulatory Factors/*genetics
;
Interferon Type I/*physiology
;
Mice
;
Mice, Transgenic
;
Neurogenesis
;
Receptors, Interferon/genetics
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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