ArticleOncogene2015
Progesterone receptor-B enhances estrogen responsiveness of breast cancer cells via scaffolding PELP1- and estrogen receptor-containing transcription complexes.
Article in Oncogene, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 91 papers.
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Who cites it
91 citing papers in PubMed, 135 citations in OpenAlex.
- Nucleic sexual hormone receptor signaling pathways in breast cancer: function regulation, crosstalk, and therapeutic implications.NPJ precision oncology · 2026Review
- Progesterone receptors drive advanced breast cancer phenotypes including circulating tumor- and stem-like cell expansion in the context of ESR1 mutation.NPJ breast cancer · 2026Article
- The PELP1 Pathway and Its Importance in Cancer Treatment.Biomolecules · 2025Review
- Beyond Estrogen: Unraveling the Complexities of Hormonal Signaling Pathways in Alzheimer's Disease and Their Implications for Precision Therapy.Molecular neurobiology · 2025Review
- Isoform-Specific Gene Regulation by Progesterone Receptors Drives Divergent Phenotypes in Breast Cancer Cells.bioRxiv : the preprint server for biology · 2025Article
- Hormone Signaling in Breast Development and Cancer.Advances in experimental medicine and biology · 2025Review
- Interdependency of estradiol-mediated ERα activation and subsequent PR and GREB1 induction to control cell cycle progression.Heliyon · 2024Article
- Comprehensive analysis of the metabolomics and transcriptomics uncovers the dysregulated network and potential biomarkers of Triple Negative Breast Cancer.Journal of translational medicine · 2024Article
- ERα/PR crosstalk is altered in the context of the ERα Y537S mutation and contributes to endocrine therapy-resistant tumor proliferation.NPJ breast cancer · 2023Article
- Reevaluating the Role of Progesterone in Ovarian Cancer: Is Progesterone Always Protective?Endocrine reviews · 2023Article
- International Union of Basic and Clinical Pharmacology CXIII: Nuclear Receptor Superfamily-Update 2023.Pharmacological reviews · 2023Review
- DOSE-L1000: unveiling the intricate landscape of compound-induced transcriptional changes.Bioinformatics (Oxford, England) · 2023Article
- Nuclear Receptor Imaging In Vivo-Clinical and Research Advances.Journal of the Endocrine Society · 2023Review
- Progesterone Receptor-Mediated Regulation of Cellular Glucose andJournal of the Endocrine Society · 2022Article
- High Levels of Progesterone Receptor B in MCF-7 Cells Enable Radical Anti-Tumoral and Anti-Estrogenic Effect of Progestin.Biomedicines · 2022Article
- FGF7/FGFR2-JunB signalling counteracts the effect of progesterone in luminal breast cancer.Molecular oncology · 2022Article
- Membrane-Initiated Estrogen, Androgen, and Progesterone Receptor Signaling in Health and Disease.Endocrine reviews · 2022Review
- Estrogen receptor positive breast cancers have patient specific hormone sensitivities and rely on progesterone receptor.Nature communications · 2022Article
- Five-year survival in luminal breast cancer patients: relation with intratumoral activity of proteasomes.Translational breast cancer research : a journal focusing on translational research in breast cancer · 2022Article
- Upregulation of an estrogen receptor-regulated gene by first generation progestins requires both the progesterone receptor and estrogen receptor alpha.Frontiers in endocrinology · 2022Article
31 more citing papers are in PubMed but not listed here.
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Authors and funding
10 authors at 3 institutions in 1 country.
Funding
Abstract
Progesterone and estrogen are important drivers of breast cancer proliferation. Herein, we probed estrogen receptor-α (ER) and progesterone receptor (PR) cross-talk in breast cancer models. Stable expression of PR-B in PR-low/ER+ MCF7 cells increased cellular sensitivity to estradiol and insulin-like growth factor 1 (IGF1), as measured in growth assays performed in the absence of exogenous progestin; similar results were obtained in PR-null/ER+ T47D cells stably expressing PR-B. Genome-wide microarray analyses revealed that unliganded PR-B induced robust expression of a subset of estradiol-responsive ER target genes, including cathepsin-D (CTSD). Estradiol-treated MCF7 cells stably expressing PR-B exhibited enhanced ER Ser167 phosphorylation and recruitment of ER, PR and the proline-, glutamate- and leucine-rich protein 1 (PELP1) to an estrogen response element in the CTSD distal promoter; this complex co-immunoprecipitated with IGF1 receptor (IGFR1) in whole-cell lysates. Importantly, ER/PR/PELP1 complexes were also detected in human breast cancer samples. Inhibition of IGF1R or phosphoinositide 3-kinase blocked PR-B-dependent CTSD mRNA upregulation in response to estradiol. Similarly, inhibition of IGF1R or PR significantly reduced ER recruitment to the CTSD promoter. Stable knockdown of endogenous PR or onapristone treatment of multiple unmodified breast cancer cell lines blocked estradiol-mediated CTSD induction, inhibited growth in soft agar and partially restored tamoxifen sensitivity of resistant cells. Further, combination treatment of breast cancer cells with both onapristone and IGF1R tyrosine kinase inhibitor AEW541 was more effective than either agent alone. In summary, unliganded PR-B enhanced proliferative responses to estradiol and IGF1 via scaffolding of ER-α/PELP1/IGF1R-containing complexes. Our data provide a strong rationale for targeting PR in combination with ER and IGF1R in patients with luminal breast cancer.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.