Details

Autor(en) / Beteiligte

• Haytural, Hazal
• Benfeitas, Rui
• Schedin-Weiss, Sophia
• Bereczki, Erika
• Rezeli, Melinda
• Unwin, Richard D
• Wang, Xusheng
• Dammer, Eric B
• Johnson, Erik C B
• Seyfried, Nicholas T
• Winblad, Bengt
• Tijms, Betty M
• Visser, Pieter Jelle
• Frykman, Susanne
• Tjernberg, Lars O

Titel

Insights into the changes in the proteome of Alzheimer disease elucidated by a meta-analysis

Ist Teil von

• Scientific data, 2021-12, Vol.8 (1), p.312-312, Article 312

Ort / Verlag

England: Nature Publishing Group

Erscheinungsjahr

2021

Link zum Volltext

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• Mass spectrometry (MS)-based proteomics is a powerful tool to explore pathogenic changes of a disease in an unbiased manner and has been used extensively in Alzheimer disease (AD) research. Here, by performing a meta-analysis of high-quality proteomic studies, we address which pathological changes are observed consistently and therefore most likely are of great importance for AD pathogenesis. We retrieved datasets, comprising a total of 21,588 distinct proteins identified across 857 postmortem human samples, from ten studies using labeled or label-free MS approaches. Our meta-analysis findings showed significant alterations of 757 and 1,195 proteins in AD in the labeled and label-free datasets, respectively. Only 33 proteins, some of which were associated with synaptic signaling, had the same directional change across the individual studies. However, despite alterations in individual proteins being different between the labeled and the label-free datasets, several pathways related to synaptic signaling, oxidative phosphorylation, immune response and extracellular matrix were commonly dysregulated in AD. These pathways represent robust changes in the human AD brain and warrant further investigation.