Cited by 38Advanced Proteomics Techniques and ApplicationsAdvanced Biosensing Techniques and ApplicationsMass Spectrometry Techniques and Applications

Proteomic workflows for high-quality quantitative proteome and post-translational modification analysis of clinically relevant samples from formalin-fixed paraffin-embedded archives

Kuras, Magdalena, Woldmar, Nicole, Kim, Yonghyo, Hefner, Max, Malm, Johan, Moldvay, Judit, Döme, Balázs, Fillinger, János +4 more·2021·Journal of Proteome Research

Abstract

Well-characterized archival formalin-fixed paraffin-embedded (FFPE) tissues are of much value for prospective biomarker discovery studies, and protocols that offer high throughput and good reproducibility are essential in proteomics. Therefore, we implemented efficient paraffin removal and protein extraction from FFPE tissues followed by an optimized two-enzyme digestion using suspension trapping (S-Trap). The protocol was then combined with TMTpro 16plex labeling and applied to lung adenocarcinoma patient samples. In total, 9585 proteins were identified, and proteins related to the clinical outcome were detected. Because acetylation is known to play a major role in cancer development, a fast on-trap acetylation protocol was developed for studying endogenous lysine acetylation, which allows identification and localization of the lysine acetylation together with quantitative comparison between samples. We demonstrated that FFPE tissues are equivalent to frozen tissues to study the degree of acetylation between patients. In summary, we present a reproducible sample preparation workflow optimized for FFPE tissues that resolves known proteomic-related challenges. We demonstrate compatibility of the S-Trap with isobaric labeling and for the first time, we prove that it is feasible to study endogenous lysine acetylation stoichiometry in FFPE tissues, contributing to better utility of the existing global tissue archives. The MS proteomic data have been deposited to the ProteomeXchange Consortium via the PRIDE partner repository with the data set identifiers PXD020157, PXD021986, and PXD021964.

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Crossref · 10.1021/acs.jproteome.0c00850

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Authors
Kuras, M., Woldmar, N., Kim, Y., Hefner, M., Malm, J., Moldvay, J., Döme, B., Fillinger, J., Pizzatti, L., Gil, J., Marko-Varga, G., & Rezeli, M.
Affiliations
  • Lund University (SE)
  • Universidade Federal do Rio de Janeiro (BR)
  • Semmelweis University (HU)
  • Div. Clinical Protein Science & Imaging, Dept. of Clinical Sciences (Lund) and Dept. of Biomedical Engineering, Lund University, Lund 22100, Sweden
Corresponding author
Rezeli, Melinda
Venue
Journal of Proteome Research
Published
2020-12-10
Volume
20
Issue
1
Pages
1027-1039
ISSN
  • 1535-3893 (ISSN-L)
  • 1535-3907
OpenAlex
W3111322527
Cited by
36
References
51
Citations by year
2026: 6 · 2025: 7 · 2024: 5 · 2023: 5 · 2022: 5 · 2021: 8
FWCI
1.72
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Proteome Research (publishedVersion)
  • PubMed (publishedVersion)
  • Lund University Publications (Lund University) (submittedVersion)
Funders
  • Fru Berta Kamprads Stiftelse
  • National Research Foundation of Korea (2015K1A1A2028365, 2016K2A9A1A03904900)
  • Ministry of Education and Human Resources Development
  • Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior
  • Kungliga Fysiografiska S?llskapet i Lund
  • Thermo Fischer Scientific
  • International Cancer Proteogenome Consortium, National Cancer Institute
  • European Cancer Moonshot Lund Center
Topics
  • Physical Sciences › Chemistry › Spectroscopy › Advanced Proteomics Techniques and Applications
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Advanced Biosensing Techniques and Applications
  • Physical Sciences › Chemistry › Spectroscopy › Mass Spectrometry Techniques and Applications
Keywords
formalin-fixed paraffin-embedded tissue, paraffin removal, protein extraction, quantitative proteomics, post-translational modification, lysine acetylation, lung adenocarcinoma, biomarker discovery, frozen tissue comparison
MeSH terms
Formaldehyde, Humans, Prospective Studies, Protein Processing, Post-Translational, Reproducibility of Results, Paraffin Embedding, Tissue Fixation, Proteome, Proteomics, Workflow

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