Quantitative proteomics decodes clusterin as a critical regulator of paternal factors responsible for impaired compensatory metabolic reprogramming in recurrent pregnancy loss
© 2019 Blackwell Verlag GmbH..
Recurrent pregnancy loss (RPL) is a perplexing problem experienced with two or more consecutive miscarriages wherein the cause remains unexplained in >50% of cases. However, despite several evidences of involvement of paternal factors on early embryogenesis and placental development, its contribution towards RPL has been largely unexplored. There is augmented lipid peroxidation, protein carbonylation, thionylation and enhanced histone retention in spermatozoa of RPL patients. Differentially expressed proteins in the spermatozoa of RPL patients may contribute towards aberrant embryo development and pregnancy loss. The present study comprised of male partners of RPL patients (n = 16) with the absence of any female factor abnormality and age-matched fertile healthy donors (n = 20). Pooled sperm samples from each group were subjected to high-throughput liquid chromatography-tandem mass spectrophotometry (LC-MS/MS) and subsequent bioinformatic analysis that identifies key proteins to be differentially expressed (DEPs). A total of 23 DEPs were identified with ≥2.0 fold change were considered to be significant. A key finding of the study was clusterin (CLUS), a predominant oxidative stress protein that takes part in an array of pre- and post-fertilisation molecular processes, found to be underexpressed as it was confirmed by Western blot analysis. This pilot study supports contributions of paternal oxidative predominance in RPL and encourages further investigation.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2020 |
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| Erschienen: |
2020 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:52 |
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| Enthalten in: |
Andrologia - 52(2020), 2 vom: 26. März, Seite e13498 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Mohanty, Gayatri [VerfasserIn] |
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| Links: |
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| Themen: |
CLU protein, human |
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| Anmerkungen: |
Date Completed 17.11.2020 Date Revised 17.11.2020 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1111/and.13498 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM304342564 |
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| 520 | |a Recurrent pregnancy loss (RPL) is a perplexing problem experienced with two or more consecutive miscarriages wherein the cause remains unexplained in >50% of cases. However, despite several evidences of involvement of paternal factors on early embryogenesis and placental development, its contribution towards RPL has been largely unexplored. There is augmented lipid peroxidation, protein carbonylation, thionylation and enhanced histone retention in spermatozoa of RPL patients. Differentially expressed proteins in the spermatozoa of RPL patients may contribute towards aberrant embryo development and pregnancy loss. The present study comprised of male partners of RPL patients (n = 16) with the absence of any female factor abnormality and age-matched fertile healthy donors (n = 20). Pooled sperm samples from each group were subjected to high-throughput liquid chromatography-tandem mass spectrophotometry (LC-MS/MS) and subsequent bioinformatic analysis that identifies key proteins to be differentially expressed (DEPs). A total of 23 DEPs were identified with ≥2.0 fold change were considered to be significant. A key finding of the study was clusterin (CLUS), a predominant oxidative stress protein that takes part in an array of pre- and post-fertilisation molecular processes, found to be underexpressed as it was confirmed by Western blot analysis. This pilot study supports contributions of paternal oxidative predominance in RPL and encourages further investigation | ||
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