ArticleJournal of ovarian research2014
Wilms' tumor suppressor gene (WT1) suppresses apoptosis by transcriptionally downregulating BAX expression in immature rat granulosa cells.
Article in Journal of ovarian research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 14 citations in OpenAlex.
- Single-cell and spatiotemporal profile of ovulation in the mouse ovary.PLoS biology · 2025Article
- Case series of adult Wilms' tumor and review of the literature.AME case reports · 2025Article
- Whole exome sequencing identified a rare WT1 loss-of-function variant in a non-syndromic POI patient.Molecular genetics & genomic medicine · 2022Article
- rno-miR-128-3p promotes apoptosis in rat granulosa cells (GCs) induced by norepinephrine through Wilms tumor 1 (WT1).In vitro cellular & developmental biology. Animal · 2021Article
- Wilms' tumor in a 51-year-old patient: An extremely rare case and review of the literature.Molecular and clinical oncology · 2016Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe important role of WT1 in early folliculogenesis was evident from its restricted expression pattern in immature follicles and from its involvement in transcriptional control of inhibin-α and FSH receptor. There is also considerable evidence that WT1 is a potent inhibitor of apoptotic cell death in the developing kidney and male germ cells, suggesting that it could play a role in the regulation of follicle survival. Therefore, we evaluated if WT1 involves in cell survival of granulosa cells (GCs) during the FSH-independent stage.
methodsGCs were obtained from small preantral follicles of immature rat ovary. Bax and bcl-2 mRNA and protein levels in GCs transfected with WT1 (-KTS) or WT1 (+KTS) were analyzed by Real-time RT-PCR and immune-blotting analysis. Cell viability was measured with MTT assays and apoptosis was analyzed with caspase 3/7 activity and TUNEL assay. The mechanism by which WT1 regulates Bax expression was investigated using Bax promoter-luciferase reporter assay and ChIP assays from GCs.
resultsHere, we showed that WT1 (-KTS) suppressed endogenous Bax transcript and protein expression, and this inhibition resulted from direct binding of WT1 in the Bax promoter region in vivo. In addition, anti-apoptotic effects of WT1 (-KTS) were demonstrated based on MTT assays, a sensitive bioluminescence caspase 3/7 assay and TUNEL assays. On the other hand, WT1 has no role on bcl-2 expression in GCs.
conclusionThese findings suggest that activation of WT1 is necessary for maintenance of GC survival during early stage of follicles and WT1 can play a role in protecting apoptosis through the regulation of upstream activator (Bax), as well as through regulation of downstream effecter (caspases 3 and 7).
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