ArticleInternational journal of molecular sciences2022
Targeted Analysis of HSP70 Isoforms in Human Spermatozoa in the Context of Capacitation and Motility.
Article in International journal of molecular sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
4 citing papers in PubMed, 5 citations in OpenAlex.
- Comparative sperm proteomics in IVF patients with differential fertilization rates identifies FAM205A as a novel biomarker for male infertility.Asian journal of andrology · 2026Article
- Unveiling novel insights into the role and characteristics of sperm heat shock protein 70 in indigenous Donggala bulls: implications for molecular-based motility markers.Archives animal breeding · 2026Article
- ARL13B-Cerulean rescues Arl13b-null mouse from embryonic lethality and reveals a role for ARL13B in spermatogenesis.Journal of cell science · 2025Article
- ARL13B-Cerulean rescuesbioRxiv : the preprint server for biology · 2025Article
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
Abstract
HSP70s constitute a family of chaperones, some isoforms of which appear to play a role in sperm function. Notably, global proteomic studies analyzing proteins deregulated in asthenozoospermia, a main cause of male infertility characterized by low sperm motility, showed the dysregulation of some HSP70 isoforms. However, to date, no clear trend has been established since the variations in the abundance of HSP70 isoforms differed between studies. The HSPA2 isoform has been reported to play a key role in fertilization, but its dysregulation and possible relocation during capacitation, a maturation process making the spermatozoon capable of fertilizing an oocyte, is debated in the literature. The aim of the present study was to investigate the fate of all sperm HSP70 isoforms during capacitation and in relation to sperm motility. Using Multiple-Reaction Monitoring (MRM) mass spectrometry, we showed that the relative abundance of all detected isoforms was stable between non-capacitated and capacitated spermatozoa. Immunofluorescence using two different antibodies also demonstrated the stability of HSP70 isoform localization during capacitation. We also investigated spermatozoa purified from 20 sperm samples displaying various levels of total and progressive sperm motility. We showed that the abundance of HSP70 isoforms is not correlated to sperm total or progressive motility.
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Registered trials
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