ArticleJournal of cellular and molecular medicine2020
Relationship between polycomb-group protein BMI-1 and phosphatases regulating AKT phosphorylation level in endometrial cancer.
Article in Journal of cellular and molecular medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 17 citations in OpenAlex.
- Research progress on the mechanism of common inflammatory pathways in the pathogenesis and development of lymphoma.Annals of medicine · 2024Review
- Bmi-1: A master regulator of head and neck cancer stemness.Frontiers in oral health · 2023Review
- Glucose and Cell Context-Dependent Impact of BMI-1 Inhibitor PTC-209 on AKT Pathway in Endometrial Cancer Cells.Cancers · 2022Article
- BMI1 promotes spermatogonial stem cell maintenance by epigenetically repressing Wnt10b/β-catenin signaling.International journal of biological sciences · 2022Article
- Integrated Transcriptome and Multiple Activated Pathways in Endometrial Cancer.Frontiers in genetics · 2021Article
- BMI1 in the heart: Novel functions beyond tumorigenesis.EBioMedicine · 2021Review
- Relationship between polycomb-group protein BMI-1 and phosphatases regulating AKT phosphorylation level in endometrial cancer.Journal of cellular and molecular medicine · 2020Article
Corrections and comments
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Authors and funding
9 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The PI3K/AKT pathway is frequently activated in endometrial carcinoma. BMI-1 (B-lymphoma Mo-MLV insertion region 1) protein affects expression of PTEN (phosphatase and tensin homolog) in some cancers, but its significance for endometrial tumorigenesis is not known. The objective of this study was to determine the relationship between BMI-1 and expression of factors affecting AKT (protein kinase B) phosphorylation level in endometrial cancer. The expression of proteins and mRNAs was investigated in endometrial cancer specimens and samples of non-neoplastic endometrial tissue by Western blot and RT-PCR, respectively. The impact of BMI-1 down-regulation on AKT phosphorylation and expression of genes coding for several phosphatases were studied in HEC1A cells. The results showed that BMI-1 depletion caused increase in PHLPP1 and PHLPP2 (PH domain and leucine-rich repeat protein phosphatases 1/2) expression and decrease in phospho-AKT (pAKT) level. In more advanced tumours with higher metastatic potential, the expression of BMI-1 was lower compared to tumours less advanced and without lymph node metastasis. There were significant inverse correlations between BMI-1 and PHLPPs, especially PHLPP1 in normal endometrial samples. The inverse correlation between BMI-1 and PHLPP1/PHLPP2 expression was observed in PTEN positive but not PTEN negative cancers. Low PHLPP2 expression in tumours predicted poorer overall survival. BMI-1 impacts on AKT phosphorylation level in endometrial cells by regulation of PHLPP expression.
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