Open Access

Proteome profiling of formalin‑fixed, paraffin‑embedded lung adenocarcinoma tissues using a tandem mass tag‑based quantitative proteomics approach

  • Authors:
    • Qi Xie
    • Dan Wang
    • Xiao Luo
    • Zhen Li
    • Aixia Hu
    • Hui Yang
    • Jinxing Tang
    • Peiyu Gao
    • Tingyi Sun
    • Lingfei Kong
  • View Affiliations

  • Published online on: August 4, 2021     https://doi.org/10.3892/ol.2021.12967
  • Article Number: 706
  • Copyright: © Xie et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Over the past few decades, increasing efforts have been made to improve the understanding of, and treatment options for, lung adenocarcinoma (LUAD). However, considering the heterogeneity of LUAD, precise proteomics‑based characterization at the molecular level is an urgent clinical requirement for effective treatment. Formalin‑fixed, paraffin‑embedded (FFPE) tissue is a good option as the working tool for proteomics studies. The present study aimed to obtain a global protein profile using LUAD FFPE tissue samples. Using a quantitative proteomics approach, the study revealed that 360 proteins were significantly more highly expressed in LUAD than in adjacent nontumor lung tissues. Also, 19 differentially expressed membrane proteins were found to be primarily responsible for immune processes. Epidermal growth factor (EGF)‑like domain and laminin EGF domain showed markedly different expression levels between cancer tissues and tumor‑adjacent normal tissues. Furthermore, Gene Ontology functional enrichment analysis showed that significantly upregulated proteins were associated with the endoplasmic reticulum lumen, protein disulfide isomerase activity, vitamin binding, cell cycle G1/S phase transition, to name but a few. Also, numerous kinases and post‑translational modification enzymes were significantly upregulated across all eight LUAD samples compared with paracarcinoma tissues. Proteomics analysis revealed that AAA domain containing 3A (ATAD3a), a member of the ATPase family, was highly expressed in LUAD tissues, which was supported by immunohistochemical analysis. Furthermore, the study confirmed that ATAD3a enhanced the cisplatin sensitivity of LUAD cells. Collectively, the findings of the present study provide new potential candidate targets in patients with LUAD, and may aid auxiliary LUAD diagnosis and surveillance in a noninvasive manner.
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October-2021
Volume 22 Issue 4

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Xie Q, Wang D, Luo X, Li Z, Hu A, Yang H, Tang J, Gao P, Sun T, Kong L, Kong L, et al: Proteome profiling of formalin‑fixed, paraffin‑embedded lung adenocarcinoma tissues using a tandem mass tag‑based quantitative proteomics approach. Oncol Lett 22: 706, 2021.
APA
Xie, Q., Wang, D., Luo, X., Li, Z., Hu, A., Yang, H. ... Kong, L. (2021). Proteome profiling of formalin‑fixed, paraffin‑embedded lung adenocarcinoma tissues using a tandem mass tag‑based quantitative proteomics approach. Oncology Letters, 22, 706. https://doi.org/10.3892/ol.2021.12967
MLA
Xie, Q., Wang, D., Luo, X., Li, Z., Hu, A., Yang, H., Tang, J., Gao, P., Sun, T., Kong, L."Proteome profiling of formalin‑fixed, paraffin‑embedded lung adenocarcinoma tissues using a tandem mass tag‑based quantitative proteomics approach". Oncology Letters 22.4 (2021): 706.
Chicago
Xie, Q., Wang, D., Luo, X., Li, Z., Hu, A., Yang, H., Tang, J., Gao, P., Sun, T., Kong, L."Proteome profiling of formalin‑fixed, paraffin‑embedded lung adenocarcinoma tissues using a tandem mass tag‑based quantitative proteomics approach". Oncology Letters 22, no. 4 (2021): 706. https://doi.org/10.3892/ol.2021.12967