Open Access

Peptidome analysis of amniotic fluid from pregnancies with preeclampsia

  • Authors:
    • Yating Qian
    • Lei Zhang
    • Can Rui
    • Hongjuan Ding
    • Pengyuan Mao
    • Hongjie Ruan
    • Ruizhe Jia
  • View Affiliations

  • Published online on: September 21, 2017     https://doi.org/10.3892/mmr.2017.7582
  • Pages: 7337-7344
  • Copyright: © Qian et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Preeclampsia (PE), a life‑threatening, complicated pregnancy‑associated disease, has recently become a research focus in obstetrics. However, the peptidome of the amniotic fluid in PE patients has rarely been investigated. The present study used peptidomic profiling to perform a comparative analysis of human amniotic fluid between normal and PE pregnancies. Centrifugal ultrafiltration and liquid chromatography‑tandem mass spectrometry (LC‑MS/MS) was combined with isotopomeric dimethyl labels to gain a deeper understanding of the role of proteins and the peptidome in the onset of PE. Following ultrafiltration and LC‑MS/MS, 352 peptides were identified. Of these, 23 peptides were observed to be significantly differentially expressed (6 downregulated and 17 upregulated; P<0.05). Using Gene Ontology and Blastp analyses, the functions and biological activities of these 23 peptides were identified and revealed to include autophagy, signal transduction, receptor activity, enzymatic activity and nucleic acid binding. In addition, a bibliographic search revealed that some of the identified peptides, including Titin, are crucial to the pathogenesis underlying PE. The present study identified 23 peptides expressed at significantly different levels in the amniotic fluid of PE and normal pregnancies. A comprehensive peptidome analysis is more efficient than a simple biomarker analysis at revealing deficiencies and improving the detection rate in diseases. These analyses therefore provide a substantial advantage in applications aimed at the discovery of disease‑specific biomarkers.
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November-2017
Volume 16 Issue 5

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Qian Y, Zhang L, Rui C, Ding H, Mao P, Ruan H and Jia R: Peptidome analysis of amniotic fluid from pregnancies with preeclampsia. Mol Med Rep 16: 7337-7344, 2017
APA
Qian, Y., Zhang, L., Rui, C., Ding, H., Mao, P., Ruan, H., & Jia, R. (2017). Peptidome analysis of amniotic fluid from pregnancies with preeclampsia. Molecular Medicine Reports, 16, 7337-7344. https://doi.org/10.3892/mmr.2017.7582
MLA
Qian, Y., Zhang, L., Rui, C., Ding, H., Mao, P., Ruan, H., Jia, R."Peptidome analysis of amniotic fluid from pregnancies with preeclampsia". Molecular Medicine Reports 16.5 (2017): 7337-7344.
Chicago
Qian, Y., Zhang, L., Rui, C., Ding, H., Mao, P., Ruan, H., Jia, R."Peptidome analysis of amniotic fluid from pregnancies with preeclampsia". Molecular Medicine Reports 16, no. 5 (2017): 7337-7344. https://doi.org/10.3892/mmr.2017.7582