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Mass Spectrometry Amyloid Typing Is Reproducible across Multiple Organ Sites
Joint Authors
Holub, Dusan
Flodrova, Pavla
Pika, Tomas
Flodr, Patrik
Hajduch, Marian
Dzubak, Petr
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-01-31
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
We have determined patient’s amyloid subtype through immunohistochemical and proteomic analyses of formalin-fixed, paraffin-embedded (FFPE) tissue samples from two affected organs per patient.
Amyloid typing, via immunohistochemistry (IHC) and laser microdissection followed by the combination of liquid chromatography with mass spectrometry (LMD-LC-MS), was performed using tissue samples of the human heart, liver, kidney, tongue, and small intestine from 11 patients, and the results were compared with clinical data.
LMD-LC-MS correctly typed AL amyloidosis in all 22 FFPE tissue samples despite tissue origin.
In contrast, IHC was successful only in the analysis of eight FFPE tissue samples with differences between the examined organs.
In the majority of LMD-LC-MS typed samples, the level of IHC staining intensity for transthyretin and serum amyloid A was the same as that for Ig κ and Ig λ antibodies, suggesting low Ig κ or Ig λ antibodies reactivity and the additional antibody clones were essential for correct typing.
Both methods used in the study were found to be suitable for amyloid typing, although LMD-LC-MS yielded more promising results than IHC.
American Psychological Association (APA)
Holub, Dusan& Flodrova, Pavla& Pika, Tomas& Flodr, Patrik& Hajduch, Marian& Dzubak, Petr. 2019. Mass Spectrometry Amyloid Typing Is Reproducible across Multiple Organ Sites. BioMed Research International،Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1124758
Modern Language Association (MLA)
Holub, Dusan…[et al.]. Mass Spectrometry Amyloid Typing Is Reproducible across Multiple Organ Sites. BioMed Research International No. 2019 (2019), pp.1-9.
https://search.emarefa.net/detail/BIM-1124758
American Medical Association (AMA)
Holub, Dusan& Flodrova, Pavla& Pika, Tomas& Flodr, Patrik& Hajduch, Marian& Dzubak, Petr. Mass Spectrometry Amyloid Typing Is Reproducible across Multiple Organ Sites. BioMed Research International. 2019. Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1124758
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1124758