4.5 Article

Amyloid-specific T-cells differentiate Alzheimer's disease from Lewy body dementia

期刊

NEUROBIOLOGY OF AGING
卷 33, 期 11, 页码 2599-2611

出版社

ELSEVIER SCIENCE INC
DOI: 10.1016/j.neurobiolaging.2012.01.004

关键词

AD; DLB; Immunobiological markers; P-PKC; Cytokines

资金

  1. Fondazione Carichieti, Chieti, Italy
  2. Italian Ministry of Education, University Research (MIUR)
  3. Italian Ministry of Health
  4. Co-Funding research projects of National Interest (COFIN) Grant

向作者/读者索取更多资源

Alzheimer's disease and dementia with Lewy bodies are the most common neurodegenerative dementias in old age. Accurate diagnosis of these conditions has important clinical implications because they tend to be confounded. In the brain of Alzheimer's disease patients amyloid-beta is produced in excess and deposited as plaques, forming the hallmark of this condition. Lymphocytes have been implicated in the process of amyloid-beta removal and inflammation occurrence. Here we investigated peripheral amyloid-beta1-42-specific T-cells by multicolor flow cytometry to simultaneously detect and characterize activation markers and cell signaling proteins (phospho-protein kinase C) in patients with Alzheimer's disease or Lewy body dementia and in healthy controls. Results indicate that only Alzheimer's disease patients display small subsets of peripheral amyloid-beta1-42-specific T-cells, characterized by bright expression of phosphorylated-protein kinase C-delta or -zeta whose significance although discussed, is far from being understood. The identification of such subsets, anyhow, may strongly contribute to distinguish Alzheimer's disease from dementia with Lewy bodies, opening possible new routes to early therapeutic strategies. (C) 2012 Elsevier Inc. All rights reserved.

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