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Circulating immune ...
Circulating immune complexes of A beta and IgM in plasma of patients with Alzheimer's disease
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Marcello, Andrea (author)
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Wirths, Oliver (author)
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Schneider-Axmann, Thomas (author)
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- Degerman-Gunnarsson, Malin (author)
- Uppsala universitet,Geriatrik
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- Lannfelt, Lars (author)
- Uppsala universitet,Geriatrik
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Bayer, Thomas A (author)
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(creator_code:org_t)
- 2009-05-05
- 2009
- English.
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In: Journal of neural transmission. - : Springer Science and Business Media LLC. - 0300-9564 .- 1435-1463. ; 116:7, s. 913-920
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https://link.springe...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- It has previously been shown that immune complexes (IC) of a given biomarker with class M immunoglobulins (IgM) provide better performances compared to the unbound biomarker in a number of cancer entities. In the present work, we investigated IC of IgM-Abeta as a potential biomarker for Alzheimer's disease (AD). Abeta-IgM concentration has been measured in 75 plasma samples from patients with AD, individuals with mild cognitive impairment (MCI), and healthy age- and sex-matched controls (HC). To characterize the fractions associated with Abeta, pooled plasma samples were subjected to gel-filtration analysis. Size-separated fractions were analyzed for the presence of Abeta using a sandwich ELISA assay. A strong reactivity was observed in the high molecular weight IgM (>500 kDa) and 150 kDa (IgG) fractions indicating that blood Abeta is strongly associated with antibodies. Using an ELISA assay detecting Abeta-IgM complexes, we observed that high levels of Abeta-IgMs were detectable in HC and MCI patients; however, there was no significant difference to the AD group.
Keyword
- Alzheimer's disease
- Immune complexes
- A beta
- Biomarkers
- Plasma
- MEDICINE
- MEDICIN
Publication and Content Type
- ref (subject category)
- art (subject category)
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