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Deochand DK, Dacic M, Bale MJ, Daman AW, Chaudhary V, Josefowicz SZ, Oliver D, Chinenov Y, Rogatsky I. Mechanisms of epigenomic and functional convergence between glucocorticoid- and IL4-driven macrophage programming. Nat Commun 2024; 15:9000. [PMID: 39424780 DOI: 10.1038/s41467-024-52942-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 09/24/2024] [Indexed: 10/21/2024] Open
Abstract
Macrophages adopt distinct phenotypes in response to environmental cues, with type-2 cytokine interleukin-4 promoting a tissue-repair homeostatic state (M2IL4). Glucocorticoids (GC), widely used anti-inflammatory therapeutics, reportedly impart a similar phenotype (M2GC), but how such disparate pathways may functionally converge is unknown. We show using integrative functional genomics that M2IL4 and M2GC transcriptomes share a striking overlap mirrored by a shift in chromatin landscape in both common and signal-specific gene subsets. This core homeostatic program is enacted by transcriptional effectors KLF4 and the glucocorticoid receptor, whose genome-wide occupancy and actions are integrated in a stimulus-specific manner by the nuclear receptor cofactor GRIP1. Indeed, many of the M2IL4:M2GC-shared transcriptomic changes were GRIP1-dependent. Consistently, GRIP1 loss attenuated phagocytic activity of both populations in vitro and macrophage tissue-repair properties in the murine colitis model in vivo. These findings provide a mechanistic framework for homeostatic macrophage programming by distinct signals, to better inform anti-inflammatory drug design.
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Affiliation(s)
- Dinesh K Deochand
- Hospital for Special Surgery Research Institute, David Z. Rosensweig Genomics Center, New York, NY, USA
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, NY, USA
| | - Marija Dacic
- Hospital for Special Surgery Research Institute, David Z. Rosensweig Genomics Center, New York, NY, USA
- Graduate Program in Physiology, Biophysics and Systems Biology, Weill Cornell Graduate School of Medical Sciences, New York, NY, USA
| | - Michael J Bale
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, USA
- Graduate Program in Immunology and Microbial Pathogenesis, Weill Cornell Graduate School of Medical Sciences, New York, NY, USA
| | - Andrew W Daman
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, USA
- Graduate Program in Immunology and Microbial Pathogenesis, Weill Cornell Graduate School of Medical Sciences, New York, NY, USA
| | - Vidyanath Chaudhary
- Hospital for Special Surgery Research Institute, David Z. Rosensweig Genomics Center, New York, NY, USA
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, NY, USA
| | - Steven Z Josefowicz
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, USA
- Graduate Program in Immunology and Microbial Pathogenesis, Weill Cornell Graduate School of Medical Sciences, New York, NY, USA
| | - David Oliver
- Hospital for Special Surgery Research Institute, David Z. Rosensweig Genomics Center, New York, NY, USA
| | - Yurii Chinenov
- Hospital for Special Surgery Research Institute, David Z. Rosensweig Genomics Center, New York, NY, USA
| | - Inez Rogatsky
- Hospital for Special Surgery Research Institute, David Z. Rosensweig Genomics Center, New York, NY, USA.
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, NY, USA.
- Graduate Program in Immunology and Microbial Pathogenesis, Weill Cornell Graduate School of Medical Sciences, New York, NY, USA.
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2
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Proffitt MR, Smith GT. Species variation in steroid hormone-related gene expression contributes to species diversity in sexually dimorphic communication in electric fishes. Horm Behav 2024; 164:105576. [PMID: 38852479 PMCID: PMC11330740 DOI: 10.1016/j.yhbeh.2024.105576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 05/08/2024] [Accepted: 05/31/2024] [Indexed: 06/11/2024]
Abstract
Sexually dimorphic behaviors are often regulated by gonadal steroid hormones. Species diversity in behavioral sex differences may arise as expression of genes mediating steroid action in brain regions controlling these behaviors evolves. The electric communication signals of apteronotid knifefishes are an excellent model for comparatively studying neuroendocrine regulation of sexually dimorphic behavior. These fish produce and detect weak electric organ discharges (EODs) for electrolocation and communication. EOD frequency (EODf), controlled by the medullary pacemaker nucleus (Pn), is sexually dimorphic and regulated by androgens and estrogens in some species, but is sexually monomorphic and unaffected by hormones in other species. We quantified expression of genes for steroid receptors, metabolizing enzymes, and cofactors in the Pn of two species with sexually dimorphic EODf (Apteronotus albifrons and Apteronotus leptorhynchus) and two species with sexually monomorphic EODf ("Apteronotus" bonapartii and Parapteronotus hasemani). The "A." bonapartii Pn expressed lower levels of androgen receptor (AR) genes than the Pn of species with sexually dimorphic EODf. In contrast, the P. hasemani Pn robustly expressed AR genes, but expressed lower levels of genes for 5α-reductases, which convert androgens to more potent metabolites, and higher levels of genes for 17β-hydroxysteroid dehydrogenases that oxidize androgens and estrogens to less potent forms. These findings suggest that sexual monomorphism of EODf arose convergently via two different mechanisms. In "A." bonapartii, reduced Pn expression of ARs likely results in insensitivity of EODf to androgens, whereas in P. hasemani, gonadal steroids may be metabolically inactivated in the Pn, reducing their potential to influence EODf.
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Affiliation(s)
- Melissa R Proffitt
- Department of Biology, Indiana University, 1001 E. 3(rd) St., Bloomington, IN 47405, USA; Center for the Integrative Study of Animal Behavior, Indiana University, 409 N. Park Ave., Bloomington, IN 47505, USA
| | - G Troy Smith
- Department of Biology, Indiana University, 1001 E. 3(rd) St., Bloomington, IN 47405, USA; Center for the Integrative Study of Animal Behavior, Indiana University, 409 N. Park Ave., Bloomington, IN 47505, USA.
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3
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Segovia D, Tepes PS. p160 nuclear receptor coactivator family members and their role in rare fusion‑driven neoplasms (Review). Oncol Lett 2024; 27:210. [PMID: 38572059 PMCID: PMC10988192 DOI: 10.3892/ol.2024.14343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 02/22/2024] [Indexed: 04/05/2024] Open
Abstract
Gene fusions with translocations involving nuclear receptor coactivators (NCoAs) are relatively common among fusion-driven malignancies. NCoAs are essential mediators of environmental cues and can modulate the transcription of downstream target genes upon binding to activated nuclear receptors. Therefore, fusion proteins containing NCoAs can become strong oncogenic drivers, affecting the cell transcriptional profile. These tumors show a strong dependency on the fusion oncogene; therefore, the direct pharmacological targeting of the fusion protein becomes an attractive strategy for therapy. Currently, different combinations of chemotherapy regimens are used to treat a variety of NCoA-fusion-driven tumors, but given the frequent tumor reoccurrence, more efficient treatment strategies are needed. Specific approaches directed towards inhibition or silencing of the fusion gene need to be developed while minimizing the interference with the original genes. This review highlights the relevant literature describing the normal function and structure of NCoAs and their oncogenic activity in NCoA-gene fusion-driven cancers, and explores potential strategies that could be effective in targeting these fusions.
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Affiliation(s)
- Danilo Segovia
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA
- Stony Brook University, Stony Brook, NY 11794, USA
| | - Polona Safaric Tepes
- Robert S. Boas Center for Genomics and Human Genetics, Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY 11030, USA
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4
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Warmke LM, Mustafa A, Zou YS, Davis JL, Ulbright TM, Segura SE. Myxoid epithelioid smooth muscle tumor of the vulva: A distinct entity with MEF2D::NCOA2 gene fusion. Genes Chromosomes Cancer 2024; 63:e23209. [PMID: 37870842 DOI: 10.1002/gcc.23209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/11/2023] [Accepted: 10/12/2023] [Indexed: 10/24/2023] Open
Abstract
Smooth muscle tumors are the most common mesenchymal tumors of the female genital tract, including the vulva. Since vulvar smooth muscle tumors are rare, our understanding of them compared to their uterine counterparts continues to evolve. Herein, we present two cases of morphologically distinct myxoid epithelioid smooth muscle tumors of the vulva with novel MEF2D::NCOA2 gene fusion. The tumors involved 24 and 37-year-old women. Both tumors presented as palpable vulvar masses that were circumscribed, measuring 2.8 and 5.1 cm in greatest dimension. Histologically, they were composed of epithelioid to spindle-shaped cells with minimal cytologic atypia and prominent myxoid matrix. Rare mitotic figures were present (1-3 mitotic figures per 10 high-power field (HPF)), and no areas of tumor necrosis were identified. By immunohistochemistry, the neoplastic cells strongly expressed smooth muscle actin, calponin, and desmin, confirming smooth muscle origin. Next-generation sequencing identified identical MEF2D::NCOA2 gene fusions. These two cases demonstrate that at least a subset of myxoid epithelioid smooth muscle tumors of the vulva represent a distinct entity characterized by a novel MEF2D::NCOA2 gene fusion. Importantly, recognition of the distinct morphologic and genetic features of these tumors is key to understanding the biological potential of these rare tumors.
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Affiliation(s)
- Laura M Warmke
- Department of Pathology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Amin Mustafa
- Department of Pathology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Ying S Zou
- Department of Pathology, The Johns Hopkins Hospital, Baltimore, Maryland, USA
| | - Jessica L Davis
- Department of Pathology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Thomas M Ulbright
- Department of Pathology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Sheila E Segura
- Department of Pathology, Indiana University School of Medicine, Indianapolis, Indiana, USA
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5
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Li S, Ying Z, Gentenaar M, Rensen PCN, Kooijman S, Visser JA, Meijer OC, Kroon J. Glucocorticoid Receptor Antagonism Improves Glucose Metabolism in a Mouse Model of Polycystic Ovary Syndrome. J Endocr Soc 2023; 8:bvad162. [PMID: 38169733 PMCID: PMC10758754 DOI: 10.1210/jendso/bvad162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Indexed: 01/05/2024] Open
Abstract
Context Polycystic ovary syndrome (PCOS) is a complex metabolic disorder associated with obesity, insulin resistance, and dyslipidemia. Hyperandrogenism is a major characteristic of PCOS. Increased androgen exposure is believed to deregulate metabolic processes in various tissues as part of the PCOS pathogenesis, predominantly through the androgen receptor (AR). Notably, various metabolic features in PCOS are similar to those observed after excess glucocorticoid exposure. Objective We hypothesized that glucocorticoid receptor (GR) signaling is involved in the metabolic symptoms of PCOS. Methods In a PCOS model of chronic dihydrotestosterone (DHT) exposure in female mice, we investigated whether GR signaling machinery was (de)regulated, and if treatment with a selective GR antagonist alleviated the metabolic symptoms. Results We observed an upregulation of GR messenger RNA expression in the liver after DHT exposure. In white adipose tissues and liver we found that DHT upregulated Hsd11b1, which encodes for the enzyme that converts inactive into active glucocorticoids. We found that preventive but not therapeutic administration of a GR antagonist alleviated DHT-induced hyperglycemia and restored glucose tolerance. We did not observe strong effects of GR antagonism in DHT-exposed mice on other features like total fat mass and lipid accumulation in various tissues. Conclusion We conclude that GR activation may play a role in glucose metabolism in DHT-exposed mice.
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Affiliation(s)
- Sheng Li
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, 2333ZA Leiden, the Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, 2333ZA Leiden, the Netherlands
| | - Zhixiong Ying
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, 2333ZA Leiden, the Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, 2333ZA Leiden, the Netherlands
| | - Max Gentenaar
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, 2333ZA Leiden, the Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, 2333ZA Leiden, the Netherlands
| | - Patrick C N Rensen
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, 2333ZA Leiden, the Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, 2333ZA Leiden, the Netherlands
| | - Sander Kooijman
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, 2333ZA Leiden, the Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, 2333ZA Leiden, the Netherlands
| | - Jenny A Visser
- Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, 3015 GD Rotterdam, the Netherlands
| | - Onno C Meijer
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, 2333ZA Leiden, the Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, 2333ZA Leiden, the Netherlands
| | - Jan Kroon
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, 2333ZA Leiden, the Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, 2333ZA Leiden, the Netherlands
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6
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Noureddine LM, Ablain J, Surmieliova-Garnès A, Jacquemetton J, Pham TH, Marangoni E, Schnitzler A, Bieche I, Badran B, Trédan O, Hussein N, Le Romancer M, Poulard C. PRMT5 triggers glucocorticoid-induced cell migration in triple-negative breast cancer. Life Sci Alliance 2023; 6:e202302009. [PMID: 37536978 PMCID: PMC10400884 DOI: 10.26508/lsa.202302009] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 07/18/2023] [Accepted: 07/24/2023] [Indexed: 08/05/2023] Open
Abstract
Triple-negative breast cancers (TNBCs) are the most aggressive breast cancers, and therapeutic options mainly rely on chemotherapy and immunotherapy. Although synthetic glucocorticoids (GCs) are given to alleviate the side effects of these treatments, GCs and their receptor, the glucocorticoid receptor (GR), were recently associated with detrimental effects, albeit the mechanisms involved remain elusive. Here, we identified the arginine methyltransferase PRMT5 as a master coregulator of GR, serving as a scaffold protein to recruit phospho-HP1γ and subsequently RNA polymerase II, independently of its methyltransferase activity. Moreover, the GR/PRMT5/HP1γ complex regulated the transcription of GC-target genes involved in cell motility and triggering cell migration of human TNBC cells in vitro and in a zebrafish model. Of note, we observed that GR/PRMT5 interaction was low in primary tumors but significantly increased in residual tumors treated with chemotherapy and GCs in neoadjuvant setting. These data suggest that the routine premedication prescription of GCs for early TNBC patients should be further assessed and that this complex could potentially be modulated to specifically target deleterious GR effects.
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Affiliation(s)
- Lara Malik Noureddine
- Université de Lyon, Lyon, France
- Inserm U1052, Centre de Recherche en Cancérologie de Lyon, Lyon, France
- CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, Lyon, France
- Lebanese University, Faculty of Sciences I, Department of Chemistry and Biochemistry, Laboratory of Cancer Biology and Molecular Immunology, Beirut, Lebanon
| | - Julien Ablain
- Université de Lyon, Lyon, France
- Inserm U1052, Centre de Recherche en Cancérologie de Lyon, Lyon, France
- CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, Lyon, France
| | - Ausra Surmieliova-Garnès
- Université de Lyon, Lyon, France
- Inserm U1052, Centre de Recherche en Cancérologie de Lyon, Lyon, France
- CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, Lyon, France
| | - Julien Jacquemetton
- Université de Lyon, Lyon, France
- Inserm U1052, Centre de Recherche en Cancérologie de Lyon, Lyon, France
- CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, Lyon, France
| | - Thuy Ha Pham
- Université de Lyon, Lyon, France
- Inserm U1052, Centre de Recherche en Cancérologie de Lyon, Lyon, France
- CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, Lyon, France
| | - Elisabetta Marangoni
- Institut Curie, Translational Research Department, PSL University, Paris, France
| | | | - Ivan Bieche
- Institut Curie, Department of Genetics, Paris, France
| | - Bassam Badran
- Lebanese University, Faculty of Sciences I, Department of Chemistry and Biochemistry, Laboratory of Cancer Biology and Molecular Immunology, Beirut, Lebanon
| | - Olivier Trédan
- Université de Lyon, Lyon, France
- Inserm U1052, Centre de Recherche en Cancérologie de Lyon, Lyon, France
- CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, Lyon, France
- Centre Leon Bérard, Oncology Department, Lyon, France
| | - Nader Hussein
- Lebanese University, Faculty of Sciences I, Department of Chemistry and Biochemistry, Laboratory of Cancer Biology and Molecular Immunology, Beirut, Lebanon
| | - Muriel Le Romancer
- Université de Lyon, Lyon, France
- Inserm U1052, Centre de Recherche en Cancérologie de Lyon, Lyon, France
- CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, Lyon, France
| | - Coralie Poulard
- Université de Lyon, Lyon, France
- Inserm U1052, Centre de Recherche en Cancérologie de Lyon, Lyon, France
- CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, Lyon, France
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7
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Fancher AT, Hua Y, Close DA, Xu W, McDermott LA, Strock CJ, Santiago U, Camacho CJ, Johnston PA. Characterization of allosteric modulators that disrupt androgen receptor co-activator protein-protein interactions to alter transactivation-Drug leads for metastatic castration resistant prostate cancer. SLAS DISCOVERY : ADVANCING LIFE SCIENCES R & D 2023; 28:325-343. [PMID: 37549772 DOI: 10.1016/j.slasd.2023.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/06/2023] [Accepted: 08/04/2023] [Indexed: 08/09/2023]
Abstract
Three series of compounds were prioritized from a high content screening campaign that identified molecules that blocked dihydrotestosterone (DHT) induced formation of Androgen Receptor (AR) protein-protein interactions (PPIs) with the Transcriptional Intermediary Factor 2 (TIF2) coactivator and also disrupted preformed AR-TIF2 PPI complexes; the hydrobenzo-oxazepins (S1), thiadiazol-5-piperidine-carboxamides (S2), and phenyl-methyl-indoles (S3). Compounds from these series inhibited AR PPIs with TIF2 and SRC-1, another p160 coactivator, in mammalian 2-hybrid assays and blocked transcriptional activation in reporter assays driven by full length AR or AR-V7 splice variants. Compounds inhibited the growth of five prostate cancer cell lines, with many exhibiting differential cytotoxicity towards AR positive cell lines. Representative compounds from the 3 series substantially reduced both endogenous and DHT-enhanced expression and secretion of the prostate specific antigen (PSA) cancer biomarker in the C4-2 castration resistant prostate cancer (CRPC) cell line. The comparatively weak activities of series compounds in the H3-DHT and/or TIF2 box 3 LXXLL-peptide binding assays to the recombinant ligand binding domain of AR suggest that direct antagonism at the orthosteric ligand binding site or AF-2 surface respectively are unlikely mechanisms of action. Cellular enhanced thermal stability assays (CETSA) indicated that compounds engaged AR and reduced the maximum efficacy and right shifted the EC50 of DHT-enhanced AR thermal stabilization consistent with the effects of negative allosteric modulators. Molecular docking of potent representative hits from each series to AR structures suggest that S1-1 and S2-6 engage a novel binding pocket (BP-1) adjacent to the orthosteric ligand binding site, while S3-11 occupies the AR binding function 3 (BF-3) allosteric pocket. Hit binding poses indicate spaces and residues adjacent to the BP-1 and BF-3 pockets that will be exploited in future medicinal chemistry optimization studies. Small molecule allosteric modulators that prevent/disrupt AR PPIs with coactivators like TIF2 to alter transcriptional activation in the presence of orthosteric agonists might evade the resistance mechanisms to existing prostate cancer drugs and provide novel starting points for medicinal chemistry lead optimization and future development into therapies for metastatic CRPC.
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Affiliation(s)
- Ashley T Fancher
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, USA; Nucleus Global, 2 Ravinia Drive, Suite 605, Atlanta, GA 30346, USA
| | - Yun Hua
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - David A Close
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Wei Xu
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Lee A McDermott
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, USA; PsychoGenics Inc, 215 College Road, Paramus, NJ 07652, USA
| | | | - Ulises Santiago
- Department of Computational and Systems Biology, School of Medicine, at the University of Pittsburgh, USA
| | - Carlos J Camacho
- Department of Computational and Systems Biology, School of Medicine, at the University of Pittsburgh, USA
| | - Paul A Johnston
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, USA; University of Pittsburgh Hillman Cancer Center, Pittsburgh, PA 15232, USA.
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8
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Kurdi M, Fadul MM, Addas BMJ, Faizo E, Alkhayyat S, Bamaga AK, Alsinani T, Katib Y, Okal F, Maghrabi Y, Sabbagh AJ, Moshref R, Albalawi S, Alkhotani A, Halawa TF, Mulla N, Hakamy S, Baeesa S. Dynamic interplay between corticosteroid treatment and the role of SRC-1 gene dysregulation in the progression of WHO-Grade 4 Astrocytoma. J Neurooncol 2023; 163:693-705. [PMID: 37402091 PMCID: PMC10393858 DOI: 10.1007/s11060-023-04385-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 06/26/2023] [Indexed: 07/05/2023]
Abstract
BACKGROUND Corticosteroid is commonly used before surgery to control cerebral oedema in brain tumours and is frequently continued throughout treatment. Its long-term effect of on the recurrence of WHO-Grade 4 astrocytoma remains controversial. The interaction between corticosteroid, SRC-1 gene and cytotoxic T-cells has never been investigated. METHODS A retrospective cohort of 36 patients with WHO-Grade 4 astrocytoma were examined for CD8 + T-cell and SRC-1 gene expressions through IHC and qRT-PCR. The impact of corticosteroid on CD8+T-cells infiltration, SRC-1 expression, and tumour recurrence was analyzed. RESULTS The mean patients age was 47-years, with a male to female ratio 1.2. About 78% [n = 28] of the cases showed reduced or no CD8+T-cell expression while 22% [n = 8] of cases have showed medium to high CD8+T-cell expression. SRC-1 gene was upregulated in 5 cases [14%] and 31 cases [86%] showed SRC-1 downregulation. The average of total days and doses of administered corticosteroid from the preoperative period to the postoperative period was at range of 14-106 days and 41-5028 mg, respectively. There was no significant statistical difference in RFI among tumours expressing high or low CD8+T-cells when corticosteroid was administered in recommended or exceeded doses [p-value = 0.640]. There was a significant statistical difference in RFI between CD8+T-Cell expression and SRC-1 gene dysregulation [p-value = 002]. Tumours with high CD8+T T-cell expression and SRC-1 gene downregulation had late recurrence. CONCLUSIONS Corticosteroid treatment can directly affect the SRC-1 gene regulation but does not directly influence cytotoxic T-cells infiltration or tumor progression. However, SRC-1 gene downregulation can facilitate late tumor recurrence.
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Affiliation(s)
- Maher Kurdi
- Department of Pathology, Faculty of Medicine, King Abdulaziz University, Rabigh, Kingdom of Saudi Arabia.
- Neuromuscular Unit, King Fahad Medical Research Center, Jeddah, Saudi Arabia.
| | - Motaz M Fadul
- Department of Pathology, Faculty of Medicine, King Abdulaziz University, Rabigh, Kingdom of Saudi Arabia
| | - Bassam M J Addas
- Department of Surgery, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Eyad Faizo
- Department of Surgery, Faculty of Medicine, University of Tabuk, Tabuk, Saudi Arabia
| | - Shadi Alkhayyat
- Department of Internal Medicine, Faculty of Medicine, King Abdulaziz University and Hospital, Jeddah, Saudi Arabia
| | - Ahmed K Bamaga
- Department of Paediatric, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Taghreed Alsinani
- Department of Neurosurgery, King Fahad General Hospital, Jeddah, Saudi Arabia
| | - Yousef Katib
- Department of Radiology, Faculty of Medicine, Taibah University, Madinah, Saudi Arabia
| | - Fahad Okal
- Department of Neuroscience, Neurosurgery Section, King Abdulaziz Medical City, National Guard Health Affairs, Jeddah, Saudi Arabia
| | - Yazid Maghrabi
- Department of Neuroscience, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
| | - Abdulrahman J Sabbagh
- Department of Surgery, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Rana Moshref
- Department of Neuroscience, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
| | - Sultan Albalawi
- Department of Surgery, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Alaa Alkhotani
- Department of Pathology, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Taher F Halawa
- Department of Paediatric, Faculty of Medicine, King Abdulaziz University, Rabigh, Saudi Arabia
| | - Nasser Mulla
- Department of Internal Medicine, Faculty of Medicine, Taibah University, Medina, Saudi Arabia
| | - Sahar Hakamy
- Neuromuscular Unit, King Fahad Medical Research Center, Jeddah, Saudi Arabia
| | - Saleh Baeesa
- Department of Neuroscience, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
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9
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Manzar N, Ganguly P, Khan UK, Ateeq B. Transcription networks rewire gene repertoire to coordinate cellular reprograming in prostate cancer. Semin Cancer Biol 2023; 89:76-91. [PMID: 36702449 DOI: 10.1016/j.semcancer.2023.01.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 01/04/2023] [Accepted: 01/18/2023] [Indexed: 01/24/2023]
Abstract
Transcription factors (TFs) represent the most commonly deregulated DNA-binding class of proteins associated with multiple human cancers. They can act as transcriptional activators or repressors that rewire the cistrome, resulting in cellular reprogramming during cancer progression. Deregulation of TFs is associated with the onset and maintenance of various cancer types including prostate cancer. An emerging subset of TFs has been implicated in the regulation of multiple cancer hallmarks during tumorigenesis. Here, we discuss the role of key TFs which modulate transcriptional cicuitries involved in the development and progression of prostate cancer. We further highlight the role of TFs associated with key cancer hallmarks, including, chromatin remodeling, genome instability, DNA repair, invasion, and metastasis. We also discuss the pluripotent function of TFs in conferring lineage plasticity, that aids in disease progression to neuroendocrine prostate cancer. At the end, we summarize the current understanding and approaches employed for the therapeutic targeting of TFs and their cofactors in the clinical setups to prevent disease progression.
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Affiliation(s)
- Nishat Manzar
- Molecular Oncology Laboratory, Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Promit Ganguly
- Molecular Oncology Laboratory, Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Umar Khalid Khan
- Molecular Oncology Laboratory, Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Bushra Ateeq
- Molecular Oncology Laboratory, Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India; Mehta Family Center for Engineering in Medicine, Indian Institute of Technology Kanpur, Kanpur 208016, India.
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10
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Buholzer KJ, McIvor J, Zosel F, Teppich C, Nettels D, Mercadante D, Schuler B. Multilayered allosteric modulation of coupled folding and binding by phosphorylation, peptidyl-prolyl cis/trans isomerization, and diversity of interaction partners. J Chem Phys 2022; 157:235102. [PMID: 36550025 DOI: 10.1063/5.0128273] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Intrinsically disordered proteins (IDPs) play key roles in cellular regulation, including signal transduction, transcription, and cell-cycle control. Accordingly, IDPs can commonly interact with numerous different target proteins, and their interaction networks are expected to be highly regulated. However, many of the underlying regulatory mechanisms have remained unclear. Here, we examine the representative case of the nuclear coactivator binding domain (NCBD) of the large multidomain protein CBP, a hub in transcriptional regulation, and the interaction with several of its binding partners. Single-molecule Förster resonance energy transfer measurements show that phosphorylation of NCBD reduces its binding affinity, with effects that vary depending on the binding partner and the site and number of modifications. The complexity of the interaction is further increased by the dependence of the affinities on peptidyl-prolyl cis/trans isomerization in NCBD. Overall, our results reveal the potential for allosteric regulation on at least three levels: the different affinities of NCBD for its different binding partners, the differential modulation of these affinities by phosphorylation, and the effect of peptidyl-prolyl cis/trans isomerization on binding.
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Affiliation(s)
- Karin J Buholzer
- Department of Biochemistry, University of Zurich, Zurich, Switzerland
| | - Jordan McIvor
- School of Chemical Sciences, The University of Auckland, Auckland, New Zealand
| | - Franziska Zosel
- Department of Biochemistry, University of Zurich, Zurich, Switzerland
| | - Christian Teppich
- Department of Biochemistry, University of Zurich, Zurich, Switzerland
| | - Daniel Nettels
- Department of Biochemistry, University of Zurich, Zurich, Switzerland
| | - Davide Mercadante
- Department of Biochemistry, University of Zurich, Zurich, Switzerland
| | - Benjamin Schuler
- Department of Biochemistry, University of Zurich, Zurich, Switzerland
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11
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Safaric Tepes P, Segovia D, Jevtic S, Ramirez D, Lyons SK, Sordella R. Patient-derived xenografts and in vitro model show rationale for imatinib mesylate repurposing in HEY1-NCoA2-driven mesenchymal chondrosarcoma. J Transl Med 2022; 102:1038-1049. [PMID: 36775418 DOI: 10.1038/s41374-021-00704-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 11/05/2021] [Accepted: 11/06/2021] [Indexed: 01/17/2023] Open
Abstract
Mesenchymal chondrosarcoma (MCS) is a high-grade malignancy that represents 2-9% of chondrosarcomas and mostly affects children and young adults. HEY1-NCoA2 gene fusion is considered to be a driver of tumorigenesis and it has been identified in 80% of MCS tumors. The shortage of MCS samples and biological models creates a challenge for the development of effective therapeutic strategies to improve the low survival rate of MCS patients. Previous molecular studies using immunohistochemical staining of patient samples suggest that activation of PDGFR signaling could be involved in MCS tumorigenesis. This work presents the development of two independent in vitro and in vivo models of HEY1-NCoA2-driven MCS and their application in a drug repurposing strategy. The in vitro model was characterized by RNA sequencing at the single-cell level and successfully recapitulated relevant MCS features. Imatinib, as well as specific inhibitors of ABL and PDGFR, demonstrated a highly selective cytotoxic effect targeting the HEY1-NCoA2 fusion-driven cellular model. In addition, patient-derived xenograft (PDX) models of MCS harboring the HEY1-NCoA2 fusion were developed from a primary tumor and its distant metastasis. In concordance with in vitro observations, imatinib was able to significantly reduce tumor growth in MCS-PDX models. The conclusions of this study serve as preclinical results to revisit the clinical efficacy of imatinib in the treatment of HEY1-NCoA2-driven MCS.
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Affiliation(s)
- Polona Safaric Tepes
- Cold Spring Harbor Laboratory, 1 Bungtown Road, Cold Spring Harbor, NY, 11724, USA.
- Faculty of Pharmacy, University of Ljubljana, Kongresni trg 12, 1000, Ljubljana, Slovenia.
| | - Danilo Segovia
- Cold Spring Harbor Laboratory, 1 Bungtown Road, Cold Spring Harbor, NY, 11724, USA
- Graduate Program in Molecular and Cellular Biology, Stony Brook University, 100 Nicolls Rd, Stony Brook, NY, 11794, USA
| | - Sania Jevtic
- Phytoform Labs Ltd., Lawes Open Innovation Hub, West Common, Harpenden, Hertfordshire, England, UK
| | - Daniel Ramirez
- Hospital for Special Surgery, Pathology and Laboratory Medicine, 535 E 70th St, New York, NY, 10021, USA
| | - Scott K Lyons
- Cold Spring Harbor Laboratory, 1 Bungtown Road, Cold Spring Harbor, NY, 11724, USA
| | - Raffaella Sordella
- Cold Spring Harbor Laboratory, 1 Bungtown Road, Cold Spring Harbor, NY, 11724, USA
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12
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Bone C, Squires EJ. Nuclear Receptor Pathways Mediating the Development of Boar Taint. Metabolites 2022; 12:metabo12090785. [PMID: 36144190 PMCID: PMC9503508 DOI: 10.3390/metabo12090785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 08/17/2022] [Accepted: 08/24/2022] [Indexed: 11/29/2022] Open
Abstract
The nuclear receptors PXR, CAR, and FXR are activated by various ligands and function as transcription factors to control the expression of genes that regulate the synthesis and metabolism of androstenone and skatole. These compounds are produced in entire male pigs and accumulate in the fat to cause the development of a meat quality issue known as boar taint. The extent of this accumulation is influenced by the synthesis and hepatic clearance of androstenone and skatole. For this reason, PXR, CAR, and FXR-mediated signaling pathways have garnered interest as potential targets for specialized treatments designed to reduce the development of boar taint. Recent research has also identified several metabolites produced by gut microbes that act as ligands for these nuclear receptors (e.g., tryptophan metabolites, short-chain fatty acids, bile acids); however, the connection between the gut microbiome and boar taint development is not clear. In this review, we describe the nuclear receptor signaling pathways that regulate the synthesis and metabolism of boar taint compounds and outline the genes involved. We also discuss several microbial-derived metabolites and dietary additives that are known or suspected nuclear receptor ligands and suggest how these compounds could be used to develop novel treatments for boar taint.
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13
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Guo P, Chen Q, Peng K, Xie J, Liu J, Ren W, Tong Z, Li M, Xu J, Zhang Y, Yu C, Mo P. Nuclear receptor coactivator SRC-1 promotes colorectal cancer progression through enhancing GLI2-mediated Hedgehog signaling. Oncogene 2022; 41:2846-2859. [PMID: 35418691 DOI: 10.1038/s41388-022-02308-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 03/29/2022] [Accepted: 03/30/2022] [Indexed: 01/20/2023]
Abstract
Overexpression of nuclear coactivator steroid receptor coactivator 1 (SRC-1) and aberrant activation of the Hedgehog (Hh) signaling pathway are associated with various tumorigenesis; however, the significance of SRC-1 in colorectal cancer (CRC) and its contribution to the activation of Hh signaling are unclear. Here, we identified a conserved Hh signaling signature positively correlated with SRC-1 expression in CRC based on TCGA database; SRC-1 deficiency significantly inhibited the proliferation, survival, migration, invasion, and tumorigenesis of both human and mouse CRC cells, and SRC-1 knockout significantly suppressed azoxymethane/dextran sodium sulfate (AOM/DSS)-induced CRC in mice. Mechanistically, SRC-1 promoted the expression of GLI family zinc finger 2 (GLI2), a major downstream transcription factor of Hh pathway, and cooperated with GLI2 to enhance multiple Hh-regulated oncogene expression, including Cyclin D1, Bcl-2, and Slug. Pharmacological blockages of SRC-1 and Hh signaling retarded CRC progression in human CRC cell xenograft mouse model. Together, our studies uncover an SRC-1/GLI2-regulated Hh signaling looping axis that promotes CRC tumorigenesis, offering an attractive strategy for CRC treatment.
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Affiliation(s)
- Peng Guo
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Qiang Chen
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Kesong Peng
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China.,Department of Cellular and Genetic Medicine, School of Basic Medical Sciences, Fudan University, Shanghai, 200433, China
| | - Jianyuan Xie
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Junjia Liu
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China.,National Institute for Data Science in Health and Medicine Engineering, Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Wenjing Ren
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Zhangwei Tong
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Ming Li
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Jianming Xu
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA
| | - Yongyou Zhang
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China. .,National Institute for Data Science in Health and Medicine Engineering, Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China.
| | - Chundong Yu
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China.
| | - Pingli Mo
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China.
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14
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Karlsson E, Sorgenfrei FA, Andersson E, Dogan J, Jemth P, Chi CN. The dynamic properties of a nuclear coactivator binding domain are evolutionarily conserved. Commun Biol 2022; 5:286. [PMID: 35354917 PMCID: PMC8967867 DOI: 10.1038/s42003-022-03217-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 03/02/2022] [Indexed: 12/21/2022] Open
Abstract
Evolution of proteins is constrained by their structure and function. While there is a consensus that the plasticity of intrinsically disordered proteins relaxes the structural constraints on evolution there is a paucity of data on the molecular details of these processes. The Nuclear Coactivator Binding Domain (NCBD) from CREB-binding protein is a protein interaction domain, which contains a hydrophobic core but is not behaving as a typical globular domain, and has been described as 'molten-globule like'. The highly dynamic properties of NCBD makes it an interesting model system for evolutionary structure-function investigation of intrinsically disordered proteins. We have here compared the structure and biophysical properties of an ancient version of NCBD present in a bilaterian animal ancestor living around 600 million years ago with extant human NCBD. Using a combination of NMR spectroscopy, circular dichroism and kinetics we show that although NCBD has increased its thermodynamic stability, it has retained its dynamic biophysical properties in the ligand-free state in the evolutionary lineage leading from the last common bilaterian ancestor to humans. Our findings suggest that the dynamic properties of NCBD have been maintained by purifying selection and thus are important for its function, which includes mediating several distinct protein-protein interactions.
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Affiliation(s)
- Elin Karlsson
- Department of Medical Biochemistry and Microbiology, Uppsala University, BMC Box 582, SE-75123, Uppsala, Sweden
| | - Frieda A Sorgenfrei
- Department of Medical Biochemistry and Microbiology, Uppsala University, BMC Box 582, SE-75123, Uppsala, Sweden.,acib GmbH, Krenngasse 37, 8010 Graz c/o University of Graz, Institute of Chemistry, NAWI Graz, BioTechMed Graz, Heinrichstrasse 28, 8010, Graz, Austria
| | - Eva Andersson
- Department of Medical Biochemistry and Microbiology, Uppsala University, BMC Box 582, SE-75123, Uppsala, Sweden
| | - Jakob Dogan
- Department of Medical Biochemistry and Microbiology, Uppsala University, BMC Box 582, SE-75123, Uppsala, Sweden
| | - Per Jemth
- Department of Medical Biochemistry and Microbiology, Uppsala University, BMC Box 582, SE-75123, Uppsala, Sweden.
| | - Celestine N Chi
- Department of Medical Biochemistry and Microbiology, Uppsala University, BMC Box 582, SE-75123, Uppsala, Sweden. .,Department of Pharmaceutical Biosciences, Uppsala University, BMC Box 582, SE-75123, Uppsala, Sweden.
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15
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Qi W, Rosikiewicz W, Yin Z, Xu B, Jiang H, Wan S, Fan Y, Wu G, Wang L. Genomic profiling identifies genes and pathways dysregulated by HEY1-NCOA2 fusion and shines a light on mesenchymal chondrosarcoma tumorigenesis. J Pathol 2022; 257:579-592. [PMID: 35342947 PMCID: PMC9539848 DOI: 10.1002/path.5899] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 02/09/2022] [Accepted: 03/23/2022] [Indexed: 11/25/2022]
Abstract
Mesenchymal chondrosarcoma is a rare, high‐grade, primitive mesenchymal tumor. It accounts for around 2–10% of all chondrosarcomas and mainly affects adolescents and young adults. We previously described the HEY1–NCOA2 as a recurrent gene fusion in mesenchymal chondrosarcoma, an important breakthrough for characterizing this disease; however, little study had been done to characterize the fusion protein functionally, in large part due to a lack of suitable models for evaluating the impact of HEY1–NCOA2 expression in the appropriate cellular context. We used iPSC‐derived mesenchymal stem cells (iPSC‐MSCs), which can differentiate into chondrocytes, and generated stable transduced iPSC‐MSCs with inducible expression of HEY1–NCOA2 fusion protein, wildtype HEY1 or wildtype NCOA2. We next comprehensively analyzed both the DNA binding properties and transcriptional impact of HEY1–NCOA2 expression by integrating genome‐wide chromatin immunoprecipitation sequencing (ChIP‐seq) and expression profiling (RNA‐seq). We demonstrated that HEY1–NCOA2 fusion protein preferentially binds to promoter regions of canonical HEY1 targets, resulting in transactivation of HEY1 targets, and significantly enhances cell proliferation. Intriguingly, we identified that both PDGFB and PDGFRA were directly targeted and upregulated by HEY1‐NCOA2; and the fusion protein, but not wildtype HEY1 or NCOA2, dramatically increased the level of phospho‐AKT (Ser473). Our findings provide a rationale for exploring PDGF/PI3K/AKT inhibition in treating mesenchymal chondrosarcoma. © 2022 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Wenqing Qi
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Wojciech Rosikiewicz
- Center for Applied Bioinformatics, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Zhaohong Yin
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Beisi Xu
- Center for Applied Bioinformatics, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Huihong Jiang
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Shibiao Wan
- Center for Applied Bioinformatics, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Yiping Fan
- Center for Applied Bioinformatics, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Gang Wu
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN, United States.,Center for Applied Bioinformatics, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Lu Wang
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN, United States
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16
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Leach DA, Fernandes RC, Bevan CL. Cellular specificity of androgen receptor, coregulators, and pioneer factors in prostate cancer. ENDOCRINE ONCOLOGY (BRISTOL, ENGLAND) 2022; 2:R112-R131. [PMID: 37435460 PMCID: PMC10259329 DOI: 10.1530/eo-22-0065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 09/08/2022] [Indexed: 07/13/2023]
Abstract
Androgen signalling, through the transcription factor androgen receptor (AR), is vital to all stages of prostate development and most prostate cancer progression. AR signalling controls differentiation, morphogenesis, and function of the prostate. It also drives proliferation and survival in prostate cancer cells as the tumour progresses; given this importance, it is the main therapeutic target for disseminated disease. AR is also essential in the surrounding stroma, for the embryonic development of the prostate and controlling epithelial glandular development. Stromal AR is also important in cancer initiation, regulating paracrine factors that excite cancer cell proliferation, but lower stromal AR expression correlates with shorter time to progression/worse outcomes. The profile of AR target genes is different between benign and cancerous epithelial cells, between castrate-resistant prostate cancer cells and treatment-naïve cancer cells, between metastatic and primary cancer cells, and between epithelial cells and fibroblasts. This is also true of AR DNA-binding profiles. Potentially regulating the cellular specificity of AR binding and action are pioneer factors and coregulators, which control and influence the ability of AR to bind to chromatin and regulate gene expression. The expression of these factors differs between benign and cancerous cells, as well as throughout disease progression. The expression profile is also different between fibroblast and mesenchymal cell types. The functional importance of coregulators and pioneer factors in androgen signalling makes them attractive therapeutic targets, but given the contextual expression of these factors, it is essential to understand their roles in different cancerous and cell-lineage states.
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Affiliation(s)
- Damien A Leach
- Division of Cancer, Imperial Centre for Translational & Experimental Medicine, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Rayzel C Fernandes
- Division of Cancer, Imperial Centre for Translational & Experimental Medicine, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Charlotte L Bevan
- Division of Cancer, Imperial Centre for Translational & Experimental Medicine, Imperial College London, Hammersmith Hospital Campus, London, UK
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17
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Pecci A, Ogara MF, Sanz RT, Vicent GP. Choosing the right partner in hormone-dependent gene regulation: Glucocorticoid and progesterone receptors crosstalk in breast cancer cells. Front Endocrinol (Lausanne) 2022; 13:1037177. [PMID: 36407312 PMCID: PMC9672667 DOI: 10.3389/fendo.2022.1037177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 10/06/2022] [Indexed: 11/06/2022] Open
Abstract
Steroid hormone receptors (SHRs) belong to a large family of ligand-activated nuclear receptors that share certain characteristics and possess others that make them unique. It was thought for many years that the specificity of hormone response lay in the ligand. Although this may be true for pure agonists, the natural ligands as progesterone, corticosterone and cortisol present a broader effect by simultaneous activation of several SHRs. Moreover, SHRs share structural and functional characteristics that range from similarities between ligand-binding pockets to recognition of specific DNA sequences. These properties are clearly evident in progesterone (PR) and glucocorticoid receptors (GR); however, the biological responses triggered by each receptor in the presence of its ligand are different, and in some cases, even opposite. Thus, what confers the specificity of response to a given receptor is a long-standing topic of discussion that has not yet been unveiled. The levels of expression of each receptor, the differential interaction with coregulators, the chromatin accessibility as well as the DNA sequence of the target regions in the genome, are reliable sources of variability in hormone action that could explain the results obtained so far. Yet, to add further complexity to this scenario, it has been described that receptors can form heterocomplexes which can either compromise or potentiate the respective hormone-activated pathways with its possible impact on the pathological condition. In the present review, we summarized the state of the art of the functional cross-talk between PR and GR in breast cancer cells and we also discussed new paradigms of specificity in hormone action.
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Affiliation(s)
- Adali Pecci
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, Argentina
- Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)-Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, Argentina
- *Correspondence: Adali Pecci, ; Guillermo Pablo Vicent,
| | - María Florencia Ogara
- Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)-Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, Argentina
| | - Rosario T. Sanz
- Molecular Biology Institute of Barcelona, Consejo Superior de Investigaciones Científicas (IBMB-CSIC), Barcelona, Spain
| | - Guillermo Pablo Vicent
- Molecular Biology Institute of Barcelona, Consejo Superior de Investigaciones Científicas (IBMB-CSIC), Barcelona, Spain
- *Correspondence: Adali Pecci, ; Guillermo Pablo Vicent,
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18
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Kumar R. Role of conformational dynamics and flexibilities in the steroid receptor-coregulator protein complex formation. Gen Comp Endocrinol 2021; 309:113780. [PMID: 33882296 DOI: 10.1016/j.ygcen.2021.113780] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/21/2021] [Accepted: 04/09/2021] [Indexed: 10/21/2022]
Abstract
Understanding of the mechanisms of actions of the steroid hormone receptor (SHR)-coregulator (CoR) protein complexes in the gene regulations has revolutionized the field of molecular endocrinology and endocrine-related oncology. The discovery and characterization of steroid receptor coactivators (SRCs) and their ability to bind various transcription factors including SHRs to coordinate the regulation of multiple target genes highlights their importance as key coregulators in various cellular signaling crosstalks as well as therapeutic target for various endocrine-related disorders specifically endocrine cancers. The dynamic nature of the SHR-CoR multi-protein complexes indicate the critical role of conformational flexibilities within specific protein(s). In recent years, the importance of conformational dynamics of the SHRs in the intramolecular and intermolecular allosteric regulations mediated via their intrinsically disordered (ID) surfaces has been highlighted. In this review article, we have discussed the importance of ID conformations within the SRCs that may also be playing an important role in the formation/deformation of multi protein complexes involving SHRs and CoRs and subsequent target gene regulation.
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Affiliation(s)
- Raj Kumar
- Department of Biomedical Sciences, University of Houston - College of Medicine, Houston, TX, United States.
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19
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Meng Z, Wang X, Zhang D, Lan Z, Cai X, Bian C, Zhang J. Steroid receptor coactivator-1: The central intermediator linking multiple signals and functions in the brain and spinal cord. Genes Dis 2021; 9:1281-1289. [PMID: 35873031 PMCID: PMC9293692 DOI: 10.1016/j.gendis.2021.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 05/31/2021] [Accepted: 06/21/2021] [Indexed: 11/28/2022] Open
Abstract
The effects of steroid hormones are believed to be mediated by their nuclear receptors (NRs). The p160 coactivator family, including steroid receptor coactivator-1 (SRC-1), 2 and 3, has been shown to physically interact with NRs to enhance their transactivational activities. Among which SRC-1 has been predominantly localized in the central nervous system including brain and spinal cord. It is not only localized in neurons but also detectable in neuroglial cells (mainly localized in the nuclei but also detectable in the extra-nuclear components). Although the expression of SRC-1 is regulated by many steroids, it is also regulated by some non-steroidal factors such as injury, sound and light. Functionally, SRC-1 has been implied in normal function such as development and ageing, learning and memory, central regulation on reproductive behaviors, motor and food intake. Pathologically, SRC-1 may play a role in the regulation of neuropsychiatric disorders (including stress, depression, anxiety, and autism spectrum disorder), metabolite homeostasis and obesity as well as tumorigenesis. Under most conditions, the related mechanisms are far from elucidation; although it may regulate spatial memory through Rictor/mTORC2-actin polymerization related synaptic plasticity. Several inhibitors and stimulator of SRC-1 have shown anti-cancer potentials, but whether these small molecules could be used to modulate ageing and central disorder related neuropathology remain unclear. Therefore, to elucidate when and how SRC-1 is turned on and off under different stimuli is very interesting and great challenge for neuroscientists.
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Affiliation(s)
- Zhaoyou Meng
- Department of Neurobiology, Army Medical University, Chongqing 400038, PR China
| | - Xiaoya Wang
- Department of Neurosurgery, Nanchong Central Hospital, the Second Clinical Medical College, North Sichuan Medical College, Nanchong, Sichuan 637000, PR China
| | - Dongmei Zhang
- Department of Dermatology, Southwest Hospital, Army Medical University, Chongqing 400038, PR China
| | - Zhen Lan
- Department of Neurobiology, Army Medical University, Chongqing 400038, PR China
| | - Xiaoxia Cai
- Department of Neurobiology, Army Medical University, Chongqing 400038, PR China
- School of Life Sciences, Southwest University, Chongqing 400715, PR China
| | - Chen Bian
- School of Psychology, Amy Medical University, Chongqing 400038, PR China
- Corresponding author.
| | - Jiqiang Zhang
- Department of Neurobiology, Army Medical University, Chongqing 400038, PR China
- Corresponding author.
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20
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Choi SR, Wang HM, Shin MH, Lim HS. Hydrophobic Tagging-Mediated Degradation of Transcription Coactivator SRC-1. Int J Mol Sci 2021; 22:6407. [PMID: 34203850 PMCID: PMC8232704 DOI: 10.3390/ijms22126407] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 06/11/2021] [Accepted: 06/12/2021] [Indexed: 01/19/2023] Open
Abstract
Steroid receptor coactivator-1 (SRC-1) is a transcription coactivator playing a pivotal role in mediating a wide range of signaling pathways by interacting with related transcription factors and nuclear receptors. Aberrantly elevated SRC-1 activity is associated with cancer metastasis and progression, and therefore, suppression of SRC-1 is emerging as a promising therapeutic strategy. In this study, we developed a novel SRC-1 degrader for targeted degradation of cellular SRC-1. This molecule consists of a selective ligand for SRC-1 and a bulky hydrophobic group. Since the hydrophobic moiety on the protein surface could mimic a partially denatured hydrophobic region of a protein, SRC-1 could be recognized as an unfolded protein and experience the chaperone-mediated degradation in the cells through the ubiquitin-proteasome system (UPS). Our results demonstrate that a hydrophobic-tagged chimeric molecule is shown to significantly reduce cellular levels of SRC-1 and suppress cancer cell migration and invasion. Together, these results highlight that our SRC-1 degrader represents a novel class of therapeutic candidates for targeting cancer metastasis. Moreover, we believe that the hydrophobic tagging strategy would be widely applicable to develop peptide-based protein degraders with enhanced cellular activity.
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Affiliation(s)
- So Ra Choi
- Department of Chemistry and Division of Advanced Material Science, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea; (S.R.C.); (H.M.W.)
| | - Hee Myeong Wang
- Department of Chemistry and Division of Advanced Material Science, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea; (S.R.C.); (H.M.W.)
| | - Min Hyeon Shin
- Department of Chemistry and Division of Advanced Material Science, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea; (S.R.C.); (H.M.W.)
- POSTECH Biotech Center, Pohang 37673, Korea
| | - Hyun-Suk Lim
- Department of Chemistry and Division of Advanced Material Science, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea; (S.R.C.); (H.M.W.)
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21
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Nascimento PVP, Almeida-Oliveira F, Macedo-Silva A, Ausina P, Motinha C, Sola-Penna M, Majerowicz D. Gene annotation of nuclear receptor superfamily genes in the kissing bug Rhodnius prolixus and the effects of 20-hydroxyecdysone on lipid metabolism. INSECT MOLECULAR BIOLOGY 2021; 30:297-314. [PMID: 33455040 DOI: 10.1111/imb.12696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 11/29/2020] [Accepted: 01/11/2021] [Indexed: 06/12/2023]
Abstract
The hormone 20-hydroxyecdysone is fundamental for regulating moulting and metamorphosis in immature insects, and it plays a role in physiological regulation in adult insects. This hormone acts by binding and activating a receptor, the ecdysone receptor, which is part of the nuclear receptor gene superfamily. Here, we analyse the genome of the kissing bug Rhodnius prolixus to annotate the nuclear receptor superfamily genes. The R. prolixus genome displays a possible duplication of the HNF4 gene. All the analysed insect organs express most nuclear receptor genes as shown by RT-PCR. The quantitative PCR analysis showed that the RpEcR and RpUSP genes are highly expressed in the testis, while the RpHNF4-1 and RpHNF4-2 genes are more active in the fat body and ovaries and in the anterior midgut, respectively. Feeding does not induce detectable changes in the expression of these genes in the fat body. However, the expression of the RpHNF4-2 gene is always higher than that of RpHNF4-1. Treating adult females with 20-hydroxyecdysone increased the amount of triacylglycerol stored in the fat bodies by increasing their lipogenic capacity. These results indicate that 20-hydroxyecdysone acts on the lipid metabolism of adult insects, although the underlying mechanism is not clear.
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Affiliation(s)
- P V P Nascimento
- Departamento de Biotecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - F Almeida-Oliveira
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - A Macedo-Silva
- Departamento de Biotecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - P Ausina
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - C Motinha
- Departamento de Biotecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - M Sola-Penna
- Departamento de Biotecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - D Majerowicz
- Departamento de Biotecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Rio de Janeiro, Brazil
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22
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Cyrta J, Gauthier A, Karanian M, Vieira AF, Cardoen L, Jehanno N, Bouvet M, Bouvier C, Komuta M, Le Loarer F, Orbach D, Rome A, Minard-Colin V, Brichard B, Pluchart C, Thebaud E, Renard M, Pannier S, Brisse H, Petit P, Benoist C, Schleiermacher G, Geoerger B, Vincent-Salomon A, Fréneaux P, Pierron G. Infantile Rhabdomyosarcomas With VGLL2 Rearrangement Are Not Always an Indolent Disease: A Study of 4 Aggressive Cases With Clinical, Pathologic, Molecular, and Radiologic Findings. Am J Surg Pathol 2021; 45:854-867. [PMID: 33949344 DOI: 10.1097/pas.0000000000001702] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
VGLL2-rearranged rhabdomyosarcomas (RMS) are rare low-grade tumors with only favorable outcomes reported to date. We describe 4 patients with VGLL2-rearranged RMS confirmed by molecular studies, who experienced local progression and distant metastases, including 2 with fatal outcomes. Tumors were diagnosed at birth (n=3) or at 12 months of age (n=1), and were all localized at initial diagnosis, but unresectable and therefore managed with chemotherapy and surveillance. Metastatic progression occurred from 1 to 8 years from diagnosis (median, 3.5 y). Three patients experienced multimetastatic spread and one showed an isolated adrenal metastasis. At initial diagnosis, 3 tumors displaying bland morphology were misdiagnosed as fibromatosis or infantile fibrosarcoma and initially managed as such, while 1 was a high-grade sarcoma. At relapse, 3 tumors showed high-grade morphology, while 1 retained a low-grade phenotype. Low-grade primary tumors showed only very focal positivity for desmin, myogenin, and/or MyoD1, while high-grade tumors were heterogenously or diffusely positive. Whole-exome sequencing, performed on primary and relapse samples for 3 patients, showed increased genomic instability and additional genomic alterations (eg, TP53, CDKN2A/B, FGFR4) at relapse, but no recurrent events. RNA sequencing confirmed that high-grade tumors retained VGLL2 fusion transcripts and transcriptomic profiles consistent with VGLL2-rearranged RMS. High-grade samples showed a high expression of genes encoding cell cycle proteins, desmin, and some developmental factors. These 4 cases with distinct medical history imply the importance of complete surgical resection, and suggest that RMS-type chemotherapy should be considered in unresectable cases, given the risk of high-grade transformation. They also emphasize the importance of correct initial diagnosis.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Mina Komuta
- Departments of Pathology
- Department of Pathology, School of Medicine, Keio University, Tokyo, Japan
| | | | - Daniel Orbach
- SIREDO Oncology Center (Care, Innovation and Research for Children and AYA With Cancer), Curie Institute, PSL Research University
| | | | - Véronique Minard-Colin
- Department of Pediatric and Adolescent Oncology, Gustave Roussy Cancer Campus, INSERM U1015, Paris-Saclay University, Villejuif
| | - Bénédicte Brichard
- Pediatric Hematology/Oncology, University Hospital Saint-Luc, Catholic University of Leuven, Brussels, Belgium
| | - Claire Pluchart
- Department of Paediatric Oncology/Hematology, American Hospital, University Hospital of Reims, Reims, France
| | - Estelle Thebaud
- Department of Pediatric Hemato-oncology, University Hospital of Nantes, Nantes
| | - Marleen Renard
- Pediatric Hematology/Oncology, University Hospital Saint-Luc, Catholic University of Leuven, Brussels, Belgium
| | - Stéphanie Pannier
- Department of Orthopedic Surgery, University Hospital Necker-Enfants-Malades, Paris
| | | | - Philippe Petit
- Radiology, La Timone Hospital, Aix Marseille University, Marseille
| | | | - Gudrun Schleiermacher
- SIREDO Oncology Center (Care, Innovation and Research for Children and AYA With Cancer), Curie Institute, PSL Research University
| | - Birgit Geoerger
- Department of Pediatric and Adolescent Oncology, Gustave Roussy Cancer Campus, INSERM U1015, Paris-Saclay University, Villejuif
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23
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Lee Y, Heo J, Jeong H, Hong KT, Kwon DH, Shin MH, Oh M, Sable GA, Ahn GO, Lee JS, Song HK, Lim HS. Targeted Degradation of Transcription Coactivator SRC-1 through the N-Degron Pathway. Angew Chem Int Ed Engl 2020; 59:17548-17555. [PMID: 33026161 DOI: 10.1002/anie.202005004] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 06/01/2020] [Indexed: 01/12/2023]
Abstract
Aberrantly elevated steroid receptor coactivator-1 (SRC-1) expression and activity are strongly correlated with cancer progression and metastasis. Here we report, for the first time, the development of a proteolysis targeting chimera (PROTAC) that is composed of a selective SRC-1 binder linked to a specific ligand for UBR box, a unique class of E3 ligases recognizing N-degrons. We showed that the bifunctional molecule efficiently and selectively induced the degradation of SRC-1 in cells through the N-degron pathway. Importantly, given the ubiquitous expression of the UBR protein in most cells, PROTACs targeting the UBR box could degrade a protein of interest regardless of cell types. We also showed that the SRC-1 degrader significantly suppressed cancer cell invasion and migration in vitro and in vivo. Together, these results demonstrate that the SRC-1 degrader can be an invaluable chemical tool in the studies of SRC-1 functions. Moreover, our findings suggest PROTACs based on the N-degron pathway as a widely useful strategy to degrade disease-relevant proteins.
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Affiliation(s)
- Yeongju Lee
- Department of Chemistry and Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, South Korea
| | - Jiwon Heo
- School of Life Sciences and Biotechnology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, South Korea
| | - Hoibin Jeong
- Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea
| | - Kyung Tae Hong
- Molecular Recognition Research Center, Korea Institute of Science and Technology (KIST), 5. Hwarang-ro, 14-gil, Seongbuk-gu, Seoul, 02792, South Korea
| | - Do Hoon Kwon
- School of Life Sciences and Biotechnology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, South Korea
| | - Min Hyeon Shin
- Department of Chemistry and Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, South Korea
| | - Misook Oh
- Department of Chemistry and Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, South Korea
| | - Ganesh A Sable
- Department of Chemistry and Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, South Korea
| | - G-One Ahn
- Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea
| | - Jun-Seok Lee
- Molecular Recognition Research Center, Korea Institute of Science and Technology (KIST), 5. Hwarang-ro, 14-gil, Seongbuk-gu, Seoul, 02792, South Korea
| | - Hyun Kyu Song
- School of Life Sciences and Biotechnology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, South Korea
| | - Hyun-Suk Lim
- Department of Chemistry and Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, South Korea
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24
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Lee Y, Heo J, Jeong H, Hong KT, Kwon DH, Shin MH, Oh M, Sable GA, Ahn G, Lee J, Song HK, Lim H. Targeted Degradation of Transcription Coactivator SRC‐1 through the N‐Degron Pathway. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yeongju Lee
- Department of Chemistry and Division of Advanced Materials Science Pohang University of Science and Technology (POSTECH) 77 Cheongam-Ro, Nam-Gu Pohang 37673 South Korea
| | - Jiwon Heo
- School of Life Sciences and Biotechnology Korea University 145 Anam-ro, Seongbuk-gu Seoul 02841 South Korea
| | - Hoibin Jeong
- Research Institute for Veterinary Science and College of Veterinary Medicine Seoul National University 1 Gwanak-ro Gwanak-gu Seoul 08826 South Korea
| | - Kyung Tae Hong
- Molecular Recognition Research Center Korea Institute of Science and Technology (KIST) 5. Hwarang-ro, 14-gil, Seongbuk-gu Seoul 02792 South Korea
| | - Do Hoon Kwon
- School of Life Sciences and Biotechnology Korea University 145 Anam-ro, Seongbuk-gu Seoul 02841 South Korea
| | - Min Hyeon Shin
- Department of Chemistry and Division of Advanced Materials Science Pohang University of Science and Technology (POSTECH) 77 Cheongam-Ro, Nam-Gu Pohang 37673 South Korea
| | - Misook Oh
- Department of Chemistry and Division of Advanced Materials Science Pohang University of Science and Technology (POSTECH) 77 Cheongam-Ro, Nam-Gu Pohang 37673 South Korea
| | - Ganesh A. Sable
- Department of Chemistry and Division of Advanced Materials Science Pohang University of Science and Technology (POSTECH) 77 Cheongam-Ro, Nam-Gu Pohang 37673 South Korea
| | - G‐One Ahn
- Research Institute for Veterinary Science and College of Veterinary Medicine Seoul National University 1 Gwanak-ro Gwanak-gu Seoul 08826 South Korea
| | - Jun‐Seok Lee
- Molecular Recognition Research Center Korea Institute of Science and Technology (KIST) 5. Hwarang-ro, 14-gil, Seongbuk-gu Seoul 02792 South Korea
| | - Hyun Kyu Song
- School of Life Sciences and Biotechnology Korea University 145 Anam-ro, Seongbuk-gu Seoul 02841 South Korea
| | - Hyun‐Suk Lim
- Department of Chemistry and Division of Advanced Materials Science Pohang University of Science and Technology (POSTECH) 77 Cheongam-Ro, Nam-Gu Pohang 37673 South Korea
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25
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SRF-FOXO1 and SRF-NCOA1 Fusion Genes Delineate a Distinctive Subset of Well-differentiated Rhabdomyosarcoma. Am J Surg Pathol 2020; 44:607-616. [PMID: 32187044 DOI: 10.1097/pas.0000000000001464] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Rhabdomyosarcoma (RMS) encompasses a heterogenous collection of tumors in which new groups have recently been identified that improved the World Health Organization (WHO) classification. While performing RNA-sequencing in our routine practice, we identified 3 cases of well-differentiated RMS harboring new fusion genes. We also analyzed these tumors through array-comparative genomic hybridization. Clinically, these tumors were deep paraspinal tumors, occurring in neo-nat and young children. The patients underwent resection and adjuvant therapy. At the time of last follow-up (ranging from 12 to 108 mo), they were alive without disease. Histologically, these tumors consisted of well-differentiated rhabdomyoblastic proliferations with nuclear atypia, infiltrative borders, and a specific growth pattern. These tumors harbored new fusion genes involving SRF and either FOXO1 or NCOA1. We compared the expression profiles of these 3 tumors to the expression data of a series of 33 skeletal muscle tumors including embryonal RMSs, alveolar rhandomyosarcomas, RMSs with VGLL2 fusions, RMSs with the myoD1 mutation, EWSR1/FUS-TFCP2 epithelioid and spindle cell RMSs of the bone, and rhabdomyomas with PTCH1 loss. According to clustering analyses, the 3 SRF-fused tumors formed a distinct group with a specific expression profile different from that of the other types of skeletal muscle tumors. Array-comparative genomic hybridization showed a recurrent gain of chromosome 11. These 3 tumors define a new group of RMS associated with a fusion of the SRF gene. FOXO1 rearrangements, usually used to confirm the diagnosis of alveolar RMS and identify poor-outcome RMSs, were identified in a nonalveolar RMS for the first time.
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26
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Ogara MF, Rodríguez-Seguí SA, Marini M, Nacht AS, Stortz M, Levi V, Presman DM, Vicent GP, Pecci A. The glucocorticoid receptor interferes with progesterone receptor-dependent genomic regulation in breast cancer cells. Nucleic Acids Res 2020; 47:10645-10661. [PMID: 31598691 PMCID: PMC6846950 DOI: 10.1093/nar/gkz857] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 09/19/2019] [Accepted: 10/04/2019] [Indexed: 12/30/2022] Open
Abstract
The glucocorticoid and progesterone receptors (GR and PR) are closely related members of the steroid receptor family. Despite sharing similar structural and functional characteristics; the cognate hormones display very distinct physiological responses. In mammary epithelial cells, PR activation is associated with the incidence and progression of breast cancer, whereas the GR is related to growth suppression and differentiation. Despite their pharmacological relevance, only a few studies have compared GR and PR activities in the same system. Using a PR+/GR+ breast cancer cell line, here we report that either glucocorticoid-free or dexamethasone (DEX)-activated GR inhibits progestin-dependent gene expression associated to epithelial-mesenchymal-transition and cell proliferation. When both receptors are activated with their cognate hormones, PR and GR can form part of the same complex according to co-immunoprecipitation, quantitative microscopy and sequential ChIP experiments. Moreover, genome-wide studies in cells treated with either DEX or R5020, revealed the presence of several regions co-bound by both receptors. Surprisingly, GR also binds novel genomic sites in cells treated with R5020 alone. This progestin-induced GR binding was enriched in REL DNA motifs and located close to genes coding for chromatin remodelers. Understanding GR behavior in the context of progestin-dependent breast cancer could provide new targets for tumor therapy.
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Affiliation(s)
- Maria F Ogara
- Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE-UBA-CONICET), Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Buenos Aires C1428EGA, Argentina
| | - Santiago A Rodríguez-Seguí
- Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE-UBA-CONICET), Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Buenos Aires C1428EGA, Argentina.,Departamento de Fisiología, Biología Molecular y Celular, Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Buenos Aires C1428EGA, Argentina
| | - Melisa Marini
- Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE-UBA-CONICET), Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Buenos Aires C1428EGA, Argentina
| | - Ana Silvina Nacht
- Centro de Regulación Genómica, Barcelona 08003, Spain.,Barcelona Institute for Science and Technology (BIST), Barcelona 08003, Spain.,Universitat Pompeu Fabra (UPF), Barcelona 08003, Spain
| | - Martin Stortz
- Departamento de Fisiología, Biología Molecular y Celular, Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Buenos Aires C1428EGA, Argentina.,Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN-UBA-CONICET), Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Buenos Aires C1428EGA, Argentina
| | - Valeria Levi
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN-UBA-CONICET), Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Buenos Aires C1428EGA, Argentina.,Departamento de Química Biológica, Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Buenos Aires C1428EGA, Argentina
| | - Diego M Presman
- Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE-UBA-CONICET), Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Buenos Aires C1428EGA, Argentina
| | - Guillermo P Vicent
- Centro de Regulación Genómica, Barcelona 08003, Spain.,Barcelona Institute for Science and Technology (BIST), Barcelona 08003, Spain.,Universitat Pompeu Fabra (UPF), Barcelona 08003, Spain.,Department of Molecular Genomics, Institute of Molecular Biology of Barcelona, IBMB-CSIC. Baldiri Reixac 4, Barcelona 08028, Spain
| | - Adali Pecci
- Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE-UBA-CONICET), Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Buenos Aires C1428EGA, Argentina.,Departamento de Química Biológica, Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Buenos Aires C1428EGA, Argentina
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27
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Karlsson E, Lindberg A, Andersson E, Jemth P. High affinity between CREBBP/p300 and NCOA evolved in vertebrates. Protein Sci 2020; 29:1687-1691. [PMID: 32329110 PMCID: PMC7314397 DOI: 10.1002/pro.3868] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/04/2020] [Accepted: 04/05/2020] [Indexed: 12/28/2022]
Abstract
The interaction between the transcriptional coactivators CREBBP/p300 and NCOA is governed by two intrinsically disordered domains called NCBD and CID, respectively. The CID domain emerged within the NCOA protein in deuterostome animals (including vertebrates) after their split from the protostomes (molluscs, worms, and arthropods). However, it has not been clear at which point a high affinity interaction evolved within the deuterostome clade and whether all present‐day deuterostome animals have a high affinity NCBD:CID interaction. We have here expressed and measured affinity for NCBD and CID domains from animal species representing different evolutionary branches of the deuterostome tree. While all vertebrate species have high‐affinity NCBD:CID interactions we found that the interaction in the echinoderm purple sea urchin is of similar affinity as that of the proposed ancestral domains. Our findings demonstrate that the high‐affinity NCBD:CID interaction likely evolved in the vertebrate branch and question whether the interaction between CREBBP/p300 and NCOA is essential in nonvertebrate deuterostomes. The data provide an example of evolution of transcriptional regulation through protein‐domain based inventions.
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Affiliation(s)
- Elin Karlsson
- Department of Medical Biochemistry and MicrobiologyUppsala UniversityUppsalaSweden
| | - Amanda Lindberg
- Department of Medical Biochemistry and MicrobiologyUppsala UniversityUppsalaSweden
| | - Eva Andersson
- Department of Medical Biochemistry and MicrobiologyUppsala UniversityUppsalaSweden
| | - Per Jemth
- Department of Medical Biochemistry and MicrobiologyUppsala UniversityUppsalaSweden
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28
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Khatiwada P, Kannan A, Malla M, Dreier M, Shemshedini L. Androgen up-regulation of Twist1 gene expression is mediated by ETV1. PeerJ 2020; 8:e8921. [PMID: 32296610 PMCID: PMC7151753 DOI: 10.7717/peerj.8921] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 03/16/2020] [Indexed: 12/26/2022] Open
Abstract
Twist1, a basic helix-loop-helix transcription factor that regulates a number of genes involved in epithelial-to-mesenchymal transition (EMT), is upregulated in prostate cancer. Androgen regulation of Twist1 has been reported in a previous study. However, the mechanism of androgen regulation of the Twist1 gene is not understood because the Twist1 promoter lacks androgen receptor (AR)-responsive elements. Previous studies have shown that the Twist1 promoter has putative binding sites for PEA3 subfamily of ETS transcription factors. Our lab has previously identified Ets Variant 1 (ETV1), a member of the PEA3 subfamily, as a novel androgen-regulated gene that is involved in prostate cancer cell invasion through unknown mechanism. In view of these data, we hypothesized that androgen-activated AR upregulates Twist1 gene expression via ETV1. Our data confirmed the published work that androgen positively regulates Twist1 gene expression and further showed that this positive effect was directed at the Twist1 promoter. The positive effect of androgen on Twist1 gene expression was abrogated upon disruption of AR expression by siRNA or of AR activity by Casodex. More importantly, our data show that disruption of ETV1 leads to significant decrease in both androgen-mediated upregulation as well as basal level of Twist1, which we are able to rescue upon re-expression of ETV1. Indeed, we are able to show that ETV1 mediates the androgen upregulation of Twist1 by acting on the proximal region of Twist1 promoter. Additionally, our data show that Twist1 regulates prostate cancer cell invasion and EMT, providing a possible mechanism by which ETV1 mediates prostate cancer cell invasion. In conclusion, in this study we report Twist1 as an indirect target of AR and androgen regulation through ETV1.
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Affiliation(s)
- Prabesh Khatiwada
- Department of Biological Sciences, University of Toledo, Toledo, OH, USA
| | - Archana Kannan
- Department of Biological Sciences, University of Toledo, Toledo, OH, USA
| | - Mamata Malla
- Department of Biological Sciences, University of Toledo, Toledo, OH, USA
| | - Megan Dreier
- Department of Biological Sciences, University of Toledo, Toledo, OH, USA
| | - Lirim Shemshedini
- Department of Biological Sciences, University of Toledo, Toledo, OH, USA
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29
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Nuclear Receptors as Regulators of Pituitary Corticotroph Pro-Opiomelanocortin Transcription. Cells 2020; 9:cells9040900. [PMID: 32272677 PMCID: PMC7226830 DOI: 10.3390/cells9040900] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 03/29/2020] [Accepted: 04/01/2020] [Indexed: 12/16/2022] Open
Abstract
The hypothalamic–pituitary–adrenal (HPA) axis plays a critical role in adaptive stress responses and maintaining organism homeostasis. The pituitary corticotroph is the central player in the HPA axis and is regulated by a plethora of hormonal and stress related factors that synergistically interact to activate and temper pro-opiomelanocortin (POMC) transcription, to either increase or decrease adrenocorticotropic hormone (ACTH) production and secretion as needed. Nuclear receptors are a family of highly conserved transcription factors that can also be induced by various physiologic signals, and they mediate their responses via multiple targets to regulate metabolism and homeostasis. In this review, we summarize the modulatory roles of nuclear receptors on pituitary corticotroph cell POMC transcription, describe the unique and complex role these factors play in hypothalamic–pituitary–adrenal axis (HPA) regulation and discuss potential therapeutic targets in disease states.
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30
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Roessner A, Smolle M, Schoeder V, Haybaeck J. [Cartilage tumors: morphology, genetics, and current aspects of target therapy]. DER PATHOLOGE 2020; 41:143-152. [PMID: 32060685 DOI: 10.1007/s00292-020-00752-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Cartilage tumors are a heterogeneous group of mesenchymal tumors whose common characteristic is the formation of a chondroblastic differentiated groundsubstance by the tumor cells. The basic features of their histological classification were already developed in the 1940s and supplemented by further entities in the following decades. Only in the past 10-15 years have fundamental new insights been gained through molecular genetic analysis. So, osteochondromas are characterized by alterations in the EXT1 and EXT2 genes. The description of mutations of isocitrate dehydrogenase 1 and 2 (IDH 1 and 2) in chondromas and chondrosarcomas is particularly important. The mesenchymal chondrosarcoma is characterized by a fusion of the HEY1-NCOA2 genes. The molecular genetic alterations characteristic for the individual tumor entities are first of all an essential supplement for the differential diagnosis of radiologically and histologically difficult cases. They also provide the basis for the establishment of molecular target therapies for malignant chondrogenic tumors. This applies in particular to conventional chondrosarcoma, for which all approaches to chemo- and radiotherapy have proven to be ineffective. However, the use of target therapies is still in its beginnings.
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Affiliation(s)
- Albert Roessner
- Institut für Pathologie, Medizinische Fakultät, Otto-von-Guericke-Universität Magdeburg, Leipziger Straße 44, 39120, Magdeburg, Deutschland.
| | - Maria Smolle
- Universitätsklinik für Orthopädie und Traumatologie, Medizinische Universität Graz, Graz, Österreich
| | - Victor Schoeder
- Institut für Pathologie, Medizinische Fakultät, Otto-von-Guericke-Universität Magdeburg, Leipziger Straße 44, 39120, Magdeburg, Deutschland
| | - Johannes Haybaeck
- Institut für Pathologie, Medizinische Fakultät, Otto-von-Guericke-Universität Magdeburg, Leipziger Straße 44, 39120, Magdeburg, Deutschland.,Institut für Pathologie, Neuropathologie und Molekularpathologie, Medizinische Universität Innsbruck, Innsbruck, Österreich.,Diagnostik und Forschungszentrum für Molekulare BioMedizin, Institut für Pathologie, Medizinische Universität Graz, Graz, Österreich
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Chen X, Tian Y, Zhu H, Bian C, Li M. Inhibition of steroid receptor coactivator-1 in the hippocampus impairs the consolidation and reconsolidation of contextual fear memory in mice. Life Sci 2020; 245:117386. [PMID: 32006528 DOI: 10.1016/j.lfs.2020.117386] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 01/20/2020] [Accepted: 01/28/2020] [Indexed: 01/28/2023]
Abstract
AIMS Steroid receptor coactivator-1 (SRC-1) is a key coactivator for the efficient transcriptional activity of steroids in the regulation of hippocampal functions. However, the effect of SRC-1 on hippocampal memory processes remains unknown. Our aim was to investigate the roles of hippocampal SRC-1 in the consolidation and reconsolidation of contextual fear memory in mice. MAIN METHODS Contextual fear conditioning paradigm was constructed in adult male C57BL/6 mice to examine the fear learning and memory processes. Adeno-associated virus (AAV) vector-mediated RNA interference (RNAi) was infused into hippocampus to block hippocampal SRC-1 level. Immunofluorescent staining was used to detect the efficiency of transfection. High plus maze and open field test were used to determine anxiety and locomotor activity. Western blot analyses were used to detect the expression of SRC-1 and synaptic proteins in the hippocampus. KEY FINDINGS We first showed that the expression of SRC-1 was regulated by fear conditioning training in a time-dependent manner, and knockdown of SRC-1 impaired contextual fear memory consolidation without affecting innate anxiety or locomotor activity. In addition, hippocampal SRC-1 was also regulated by the retrieval of contextual fear memory, and downregulation of SRC-1 disrupted fear memory reconsolidation. Moreover, knockdown of SRC-1 reversed the increased GluR1 and PSD-95 levels induced by contextual fear memory retrieval. SIGNIFICANCE Our data indicate that hippocampal SRC-1 is required for the consolidation and reconsolidation of contextual fear memory, and SRC-1 may be a potential therapeutic target for mental disorders that are involved in hippocampal memory dysfunction.
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Affiliation(s)
- Xiuxiu Chen
- Department of Military Psychology, College of Psychology, Army Medical University, Chongqing 400038, China
| | - Yiqin Tian
- Department of Military Psychology, College of Psychology, Army Medical University, Chongqing 400038, China
| | - Haitao Zhu
- Department of Neurology, Airborne Military Hospital, Chinese People's Liberation Army, Wuhan 430014, China
| | - Chen Bian
- Department of Military Psychology, College of Psychology, Army Medical University, Chongqing 400038, China; Department of Developmental Psychology of Army man, College of Psychology, Army Medical University, Chongqing 400038, China.
| | - Min Li
- Department of Military Psychology, College of Psychology, Army Medical University, Chongqing 400038, China.
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Stallcup MR, Poulard C. Gene-Specific Actions of Transcriptional Coregulators Facilitate Physiological Plasticity: Evidence for a Physiological Coregulator Code. Trends Biochem Sci 2020; 45:497-510. [PMID: 32413325 DOI: 10.1016/j.tibs.2020.02.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/24/2020] [Accepted: 02/10/2020] [Indexed: 01/14/2023]
Abstract
The actions of transcriptional coregulators are highly gene-specific, that is, each coregulator is required only for a subset of the genes regulated by a specific transcription factor. These coregulator-specific gene subsets often represent selected physiological responses among multiple pathways targeted by a transcription factor. Regulating the activity of a coregulator via post-translational modifications would thus affect only a subset of the transcription factor's physiological actions. Using the context of transcriptional regulation by steroid hormone receptors, this review focuses on gene-specific actions of coregulators and evidence linking individual coregulators with specific physiological pathways. Such evidence suggests that there is a 'physiological coregulator code', which represents a fertile area for future research with important clinical implications.
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Affiliation(s)
- Michael R Stallcup
- Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA90089-9176, USA.
| | - Coralie Poulard
- Université de Lyon, F-69000 Lyon, France; Inserm U1052, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France; CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France
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33
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Abstract
Lysine (or histone) acetyltransferases plays a key role in genome maintenance and gene regulation and dysregulation of acetylation is a recognized feature of many diseases, including several cancers. Here, the patent landscape surrounding lysine acetyltransferase inhibitors (KATi or HATi), with a focus on small-molecule compounds, is outlined and assessed. Overall, the 36 KATi-specific patents found were categorized into two distinct groups: specific small-molecule inhibitors (compounds and molecules) and patents applying KATi for targeted disease treatment. These patents recognize the emergent potential of KATi to significantly impact on the management of many diseases (including multiple cancer types, neurological disorders and immunological syndromes), improving the range of treatments (and drug classes) available for personalized medicine.
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34
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Herrera-Marcos LV, Sancho-Knapik S, Gabás-Rivera C, Barranquero C, Gascón S, Romanos E, Martínez-Beamonte R, Navarro MA, Surra JC, Arnal C, García-de-Jalón JA, Rodríguez-Yoldi MJ, Tena-Sempere M, Sánchez-Ramos C, Monsalve M, Osada J. Pgc1a is responsible for the sex differences in hepatic Cidec/Fsp27β mRNA expression in hepatic steatosis of mice fed a Western diet. Am J Physiol Endocrinol Metab 2020; 318:E249-E261. [PMID: 31846369 DOI: 10.1152/ajpendo.00199.2019] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Hepatic fat-specific protein 27 [cell death-inducing DNA fragmentation effector protein C (Cidec)/Fsp27] mRNA levels have been associated with hepatic lipid droplet extent under certain circumstances. To address its hepatic expression under different dietary conditions and in both sexes, apolipoprotein E (Apoe)-deficient mice were subjected to different experimental conditions for 11 wk to test the influence of cholesterol, Western diet, squalene, oleanolic acid, sex, and surgical castration on Cidec/Fsp27 mRNA expression. Dietary cholesterol increased hepatic Cidec/Fsp27β expression, an effect that was suppressed when cholesterol was combined with saturated fat as represented by Western diet feeding. Using the latter diet, neither oleanolic acid nor squalene modified its expression. Females showed lower levels of hepatic Cidec/Fsp27β expression than males when they were fed Western diets, a result that was translated into a lesser amount of CIDEC/FSP27 protein in lipid droplets and microsomes. This was also confirmed in low-density lipoprotein receptor (Ldlr)-deficient mice. Incubation with estradiol resulted in decreased Cidec/Fsp27β expression in AML12 cells. Whereas male surgical castration did not modify the expression, ovariectomized females did show increased levels compared with control females. Females also showed increased expression of peroxisome proliferator-activated receptor-γ coactivator 1-α (Pgc1a), suppressed by ovariectomy, and the values were significantly and inversely associated with those of Cidec/Fsp27β. When Pgc1a-deficient mice were used, the sex differences in Cidec/Fsp27β expression disappeared. Therefore, hepatic Cidec/Fsp27β expression has a complex regulation influenced by diet and sex hormonal milieu. The mRNA sex differences are controlled by Pgc1a.
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Affiliation(s)
- Luis V Herrera-Marcos
- Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación Sanitaria de Aragón-Universidad de Zaragoza, Zaragoza, Spain
- Instituto Agroalimentario de Aragón, Centro de Investigación y Tecnología Agroalimentaria de Aragón-Universidad de Zaragoza, Zaragoza, Spain
| | - Sara Sancho-Knapik
- Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación Sanitaria de Aragón-Universidad de Zaragoza, Zaragoza, Spain
| | - Clara Gabás-Rivera
- Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación Sanitaria de Aragón-Universidad de Zaragoza, Zaragoza, Spain
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - Cristina Barranquero
- Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación Sanitaria de Aragón-Universidad de Zaragoza, Zaragoza, Spain
- Instituto Agroalimentario de Aragón, Centro de Investigación y Tecnología Agroalimentaria de Aragón-Universidad de Zaragoza, Zaragoza, Spain
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - Sonia Gascón
- Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación Sanitaria de Aragón-Universidad de Zaragoza, Zaragoza, Spain
- Instituto Agroalimentario de Aragón, Centro de Investigación y Tecnología Agroalimentaria de Aragón-Universidad de Zaragoza, Zaragoza, Spain
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - Eduardo Romanos
- Instituto de Investigación Sanitaria de Aragón-Universidad de Zaragoza, Zaragoza, Spain
| | - Roberto Martínez-Beamonte
- Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación Sanitaria de Aragón-Universidad de Zaragoza, Zaragoza, Spain
- Instituto Agroalimentario de Aragón, Centro de Investigación y Tecnología Agroalimentaria de Aragón-Universidad de Zaragoza, Zaragoza, Spain
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - María A Navarro
- Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación Sanitaria de Aragón-Universidad de Zaragoza, Zaragoza, Spain
- Instituto Agroalimentario de Aragón, Centro de Investigación y Tecnología Agroalimentaria de Aragón-Universidad de Zaragoza, Zaragoza, Spain
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - Joaquín C Surra
- Instituto Agroalimentario de Aragón, Centro de Investigación y Tecnología Agroalimentaria de Aragón-Universidad de Zaragoza, Zaragoza, Spain
- Departamento de Producción Animal y Ciencia de los Alimentos, Escuela Politécnica Superior de Huesca Facultad de Veterinaria, Instituto de Investigación Sanitaria de Aragón-Universidad de Zaragoza, Huesca, Spain
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - Carmen Arnal
- Instituto Agroalimentario de Aragón, Centro de Investigación y Tecnología Agroalimentaria de Aragón-Universidad de Zaragoza, Zaragoza, Spain
- Departamento de Patología Animal, Facultad de Veterinaria, Instituto de Investigación Sanitaria de Aragón-Universidad de Zaragoza, Zaragoza, Spain
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - José A García-de-Jalón
- Departamento de Patología Animal, Facultad de Veterinaria, Instituto de Investigación Sanitaria de Aragón-Universidad de Zaragoza, Zaragoza, Spain
| | - María J Rodríguez-Yoldi
- Instituto Agroalimentario de Aragón, Centro de Investigación y Tecnología Agroalimentaria de Aragón-Universidad de Zaragoza, Zaragoza, Spain
- Departamento de Farmacología y Fisiología, Facultad de Veterinaria, Instituto de Investigación Sanitaria de Aragón-Universidad de Zaragoza, Zaragoza, Spain
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - Manuel Tena-Sempere
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba e Instituto Maimónides de Investigación Biomédica de Córdoba, Córdoba, Spain
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - Cristina Sánchez-Ramos
- Instituto de Investigaciones Biomedicas "Alberto Sols," Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid, Madrid, Spain
| | - María Monsalve
- Instituto de Investigaciones Biomedicas "Alberto Sols," Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid, Madrid, Spain
| | - Jesús Osada
- Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación Sanitaria de Aragón-Universidad de Zaragoza, Zaragoza, Spain
- Instituto Agroalimentario de Aragón, Centro de Investigación y Tecnología Agroalimentaria de Aragón-Universidad de Zaragoza, Zaragoza, Spain
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
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Kushner MH, Ory V, Graham GT, Sharif GM, Kietzman WB, Thevissen S, Yuan M, Schmidt MO, Wellstein A, Riegel AT. Loss of ANCO1 repression at AIB1/YAP targets drives breast cancer progression. EMBO Rep 2020; 21:e48741. [PMID: 31788936 PMCID: PMC6945057 DOI: 10.15252/embr.201948741] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 10/28/2019] [Accepted: 11/12/2019] [Indexed: 02/06/2023] Open
Abstract
Transcription factors critical for the transition of normal breast epithelium to ductal carcinoma in situ (DCIS) and invasive breast cancer are not clearly defined. Here, we report that the expression of a subset of YAP-activated and YAP-repressed genes in normal mammary and early-stage breast cancer cells is dependent on the nuclear co-activator AIB1. Gene expression, sequential ChIP, and ChIP-seq analyses show that AIB1 and YAP converge upon TEAD for transcriptional activation and repression. We find that AIB1-YAP repression of genes at the 1q21.3 locus is mediated by AIB1-dependent recruitment of ANCO1, a tumor suppressor whose expression is progressively lost during breast cancer progression. Reducing ANCO1 reverts AIB1-YAP-dependent repression, increases cell size, and enhances YAP-driven aberrant 3D growth. Loss of endogenous ANCO1 occurs during DCIS xenograft progression, a pattern associated with poor prognosis in human breast cancer. We conclude that increased expression of AIB1-YAP co-activated targets coupled with a loss of normal ANCO1 repression is critical to patterns of gene expression that mediate malignant progression of early-stage breast cancer.
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Affiliation(s)
- Max H Kushner
- Lombardi Comprehensive Cancer CenterGeorgetown UniversityWashingtonDCUSA
| | - Virginie Ory
- Lombardi Comprehensive Cancer CenterGeorgetown UniversityWashingtonDCUSA
| | - Garrett T Graham
- Lombardi Comprehensive Cancer CenterGeorgetown UniversityWashingtonDCUSA
| | - Ghada M Sharif
- Lombardi Comprehensive Cancer CenterGeorgetown UniversityWashingtonDCUSA
| | - William B Kietzman
- Lombardi Comprehensive Cancer CenterGeorgetown UniversityWashingtonDCUSA
| | - Sophia Thevissen
- Department of Molecular MedicineGoethe UniversityFrankfurt am MainGermany
| | - Meng Yuan
- Lombardi Comprehensive Cancer CenterGeorgetown UniversityWashingtonDCUSA
| | - Marcel O Schmidt
- Lombardi Comprehensive Cancer CenterGeorgetown UniversityWashingtonDCUSA
| | - Anton Wellstein
- Lombardi Comprehensive Cancer CenterGeorgetown UniversityWashingtonDCUSA
| | - Anna T Riegel
- Lombardi Comprehensive Cancer CenterGeorgetown UniversityWashingtonDCUSA
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36
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Hernández-Hernández OT, Martínez-Mota L, Herrera-Pérez JJ, Jiménez-Rubio G. Role of Estradiol in the Expression of Genes Involved in Serotonin Neurotransmission: Implications for Female Depression. Curr Neuropharmacol 2019; 17:459-471. [PMID: 29956632 PMCID: PMC6520586 DOI: 10.2174/1570159x16666180628165107] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 05/23/2018] [Accepted: 06/25/2018] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND In women, changes in estrogen levels may increase the incidence and/or symptomatology of depression and affect the response to antidepressant treatments. Estrogen therapy in females may provide some mood benefits as a single treatment or might augment clinical response to antidepressants that inhibit serotonin reuptake. OBJECTIVE We analyzed the mechanisms of estradiol action involved in the regulation of gene expression that modulates serotonin neurotransmission implicated in depression. METHOD Publications were identified by a literature search on PubMed. RESULTS The participation of estradiol in depression may include regulation of the expression of tryptophan hydroxylase-2, monoamine oxidase A and B, serotonin transporter and serotonin-1A receptor. This effect is mediated by estradiol binding to intracellular estrogen receptor that interacts with estrogen response elements in the promoter sequences of tryptophan hydroxylase-2, serotonin transporter and monoamine oxidase-B. In addition to directly binding deoxyribonucleic acid, estrogen receptor can tether to other transcription factors, including activator protein 1, specificity protein 1, CCAAT/enhancer binding protein β and nuclear factor kappa B to regulate gene promoters that lack estrogen response elements, such as monoamine oxidase-A and serotonin 1A receptor. CONCLUSION Estradiol increases tryptophan hydroxylase-2 and serotonin transporter expression and decreases the expression of serotonin 1A receptor and monoamine oxidase A and B through the interaction with its intracellular receptors. The understanding of molecular mechanisms of estradiol regulation on the protein expression that modulates serotonin neurotransmission will be helpful for the development of new and more effective treatment for women with depression.
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Affiliation(s)
- Olivia Tania Hernández-Hernández
- Consejo Nacional de Ciencia y Tecnologia Research Fellow Instituto Nacional de Psiquiatria Ramon de la Fuente Muniz, Calzada Mexico-Xochimilco 101, Col. San Lorenzo Huipulco, Delegacion Tlalpan, 14370, Ciudad de Mexico, Mexico
| | - Lucía Martínez-Mota
- Laboratorio de Farmacologia Conductual, Direccion de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatria Ramon de la Fuente Muniz, Calzada Mexico-Xochimilco 101, Col. San Lorenzo Huipulco, Delegacion Tlalpan, 14370, Ciudad de Mexico, Mexico
| | - José Jaime Herrera-Pérez
- Laboratorio de Farmacologia Conductual, Direccion de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatria Ramon de la Fuente Muniz, Calzada Mexico-Xochimilco 101, Col. San Lorenzo Huipulco, Delegacion Tlalpan, 14370, Ciudad de Mexico, Mexico
| | - Graciela Jiménez-Rubio
- Laboratorio de Farmacologia Conductual, Direccion de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatria Ramon de la Fuente Muniz, Calzada Mexico-Xochimilco 101, Col. San Lorenzo Huipulco, Delegacion Tlalpan, 14370, Ciudad de Mexico, Mexico
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37
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TNF-α inhibits glucocorticoid receptor-induced gene expression by reshaping the GR nuclear cofactor profile. Proc Natl Acad Sci U S A 2019; 116:12942-12951. [PMID: 31182584 DOI: 10.1073/pnas.1821565116] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Glucocorticoid resistance (GCR) is defined as an unresponsiveness to the therapeutic effects, including the antiinflammatory ones of glucocorticoids (GCs) and their receptor, the glucocorticoid receptor (GR). It is a problem in the management of inflammatory diseases and can be congenital as well as acquired. The strong proinflammatory cytokine TNF-alpha (TNF) induces an acute form of GCR, not only in mice, but also in several cell lines: e.g., in the hepatoma cell line BWTG3, as evidenced by impaired Dexamethasone (Dex)-stimulated direct GR-dependent gene up- and down-regulation. We report that TNF has a significant and broad impact on this transcriptional performance of GR, but no impact on nuclear translocation, dimerization, or DNA binding capacity of GR. Proteome-wide proximity-mapping (BioID), however, revealed that the GR interactome was strongly modulated by TNF. One GR cofactor that interacted significantly less with the receptor under GCR conditions is p300. NFκB activation and p300 knockdown both reduced direct transcriptional output of GR whereas p300 overexpression and NFκB inhibition reverted TNF-induced GCR, which is in support of a cofactor reshuffle model. This hypothesis was supported by FRET studies. This mechanism of GCR opens avenues for therapeutic interventions in GCR diseases.
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38
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Cai M, Liang X, Sun X, Chen H, Dong Y, Wu L, Gu S, Han S. Nuclear Receptor Coactivator 2 Promotes Human Breast Cancer Cell Growth by Positively Regulating the MAPK/ERK Pathway. Front Oncol 2019; 9:164. [PMID: 30941313 PMCID: PMC6434718 DOI: 10.3389/fonc.2019.00164] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 02/25/2019] [Indexed: 01/20/2023] Open
Abstract
As a member of the p160 steroid receptor coactivator (SRC) family, nuclear receptor coactivator 2 (NCOA2) is known to play essential roles in many physiological and pathological processes, including development, endocrine regulation, and tumorigenesis. However, the biological function of NCOA2 in breast cancer is not fully understood. We found that the copy number of the NCOA2 gene was frequently amplified in four breast cancers datasets, varying from 6 to 10%, and the mRNA levels of NCOA2 were also upregulated in 11% of the sequenced cases/patients (TCGA provisional dataset). Next, we confirmed that NCOA2 silencing significantly suppressed cell proliferation in different breast cancer cell lines, by inducing cell cycle arrest and apoptosis. Mechanistically, whole-transcriptome sequencing (RNA-Seq) analysis showed that NCOA2 depletion leads to downregulation of the MAPK/ERK signaling cascade, possibly via downregulating NCOA2's downstream target RASEF. In conclusion, our results suggest NCOA2 as a potential target of therapeutics against breast cancer.
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Affiliation(s)
- Mengjiao Cai
- Department of Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, China
| | - Xin Liang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, China.,National Center for Protein Sciences, Beijing, China
| | - Xiao Sun
- Department of Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, China
| | - Huan Chen
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, China
| | - Yiping Dong
- Department of Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Lingzhi Wu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, China.,National Center for Protein Sciences, Beijing, China
| | - Suxi Gu
- Orthopeadic Department, Beijing Tsinghua Changgung Hospital, School of Clinical Medcine, Tsinghua University, Beijing, China
| | - Suxia Han
- Department of Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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39
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Johmura Y, Maeda I, Suzuki N, Wu W, Goda A, Morita M, Yamaguchi K, Yamamoto M, Nagasawa S, Kojima Y, Tsugawa K, Inoue N, Miyoshi Y, Osako T, Akiyama F, Maruyama R, Inoue JI, Furukawa Y, Ohta T, Nakanishi M. Fbxo22-mediated KDM4B degradation determines selective estrogen receptor modulator activity in breast cancer. J Clin Invest 2018; 128:5603-5619. [PMID: 30418174 DOI: 10.1172/jci121679] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 09/27/2018] [Indexed: 12/22/2022] Open
Abstract
The agonistic/antagonistic biocharacter of selective estrogen receptor modulators (SERMs) can have therapeutic advantages, particularly in the case of premenopausal breast cancers. Although the contradictory effects of these modulators have been studied in terms of crosstalk between the estrogen receptor α (ER) and coactivator dynamics and growth factor signaling, the molecular basis of these mechanisms is still obscure. We identify a series of regulatory mechanisms controlling cofactor dynamics on ER and SERM function, whose activities require F-box protein 22 (Fbxo22). Skp1, Cullin1, F-box-containing complex (SCFFbxo22) ubiquitylated lysine demethylase 4B (KDM4B) complexed with tamoxifen-bound (TAM-bound) ER, whose degradation released steroid receptor coactivator (SRC) from ER. Depletion of Fbxo22 resulted in ER-dependent transcriptional activation via transactivation function 1 (AF1) function, even in the presence of SERMs. In living cells, TAM released SRC and KDM4B from ER in a Fbxo22-dependent manner. SRC release by TAM required Fbxo22 on almost all ER-SRC-bound enhancers and promoters. TAM failed to prevent the growth of Fbxo22-depleted, ER-positive breast cancers both in vitro and in vivo. Clinically, a low level of Fbxo22 in tumor tissues predicted a poorer outcome in ER-positive/human epidermal growth factor receptor type 2-negative (HER2-negative) breast cancers with high hazard ratios, independently of other markers such as Ki-67 and node status. We propose that the level of Fbxo22 in tumor tissues defines a new subclass of ER-positive breast cancers for which SCFFbxo22-mediated KDM4B degradation in patients can be a therapeutic target for the next generation of SERMs.
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Affiliation(s)
- Yoshikazu Johmura
- Division of Cancer Cell Biology, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Ichiro Maeda
- Department of Pathology St. Marianna University School of Medicine, Kawasaki, Japan
| | - Narumi Suzuki
- Division of Cancer Cell Biology, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Wenwen Wu
- Department of Translational Oncology, St. Marianna University Graduate School of Medicine, Kawasaki, Japan
| | - Atsushi Goda
- Department of Pathology St. Marianna University School of Medicine, Kawasaki, Japan
| | - Mariko Morita
- Division of Clinical Genome Research, Advanced Clinical Research Center, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Kiyoshi Yamaguchi
- Division of Clinical Genome Research, Advanced Clinical Research Center, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Mizuki Yamamoto
- Division of Cellular and Molecular Biology, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Satoi Nagasawa
- Division of Breast and Endocrine Surgery, Department of Surgery, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Yasuyuki Kojima
- Division of Breast and Endocrine Surgery, Department of Surgery, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Koichiro Tsugawa
- Division of Breast and Endocrine Surgery, Department of Surgery, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Natsuko Inoue
- Division of Breast and Endocrine Surgery, Department of Surgery, Hyogo College of Medicine, Hyogo, Japan
| | - Yasuo Miyoshi
- Division of Breast and Endocrine Surgery, Department of Surgery, Hyogo College of Medicine, Hyogo, Japan
| | - Tomo Osako
- Department of Pathology, The Cancer Institute Hospital, and
| | | | - Reo Maruyama
- Project for Cancer Epigenomics, the Cancer Institute of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Jun-Ichiro Inoue
- Division of Cellular and Molecular Biology, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Yoichi Furukawa
- Division of Clinical Genome Research, Advanced Clinical Research Center, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Tomohiko Ohta
- Department of Translational Oncology, St. Marianna University Graduate School of Medicine, Kawasaki, Japan
| | - Makoto Nakanishi
- Division of Cancer Cell Biology, Institute of Medical Science, University of Tokyo, Tokyo, Japan
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Machado MS, Rosa FD, Lira MC, Urtreger AJ, Rubio MF, Costas MA. The inflammatory cytokine TNF contributes with RAC3-induced malignant transformation. EXCLI JOURNAL 2018; 17:1030-1042. [PMID: 30585274 PMCID: PMC6298201 DOI: 10.17179/excli2018-1759] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 10/16/2018] [Indexed: 12/16/2022]
Abstract
RAC3 is a coactivator of steroid receptors and NF-κB. It is usually overexpressed in several tumors, contributes to maintain cancer stem cells and also to induce them when is overexpressed in non-tumoral cells. In this work, we investigated whether the inflammatory cytokine TNF may contribute to the transforming effects of RAC3 overexpression in the non-tumoral HEK293 cell line. The study model included the HEK293 tumoral transformed cell line constitutively overexpressing RAC3 by stable transfection and control non-tumoral cells transfected with an empty vector. The HeLa and T47D tumoral cells that naturally overexpress RAC3 were used as positive control. We found that TNF potentiated RAC3-induced mesenchymal transition, involving an increased E-Cadherin downregulation, Vimentin and SNAIL upregulation and enhanced migratory behavior. Moreover, concerning the molecular mechanisms by which TNF potentiates the RAC3 transforming action, they involve the IKK activation, which in addition induced the β-Catenin transactivation. Our results demonstrate that although RAC3 overexpression could be a signal strong enough to induce cancer stem cells, the inflammatory microenvironment may be playing a key role contributing to the migratory and invasive phenotype required for metastasis and cancer persistence.
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Affiliation(s)
- Mileni Soares Machado
- Laboratorio de Biología Molecular y Apoptosis, Instituto de Investigaciones Médicas Alfredo Lanari, IDIM-CONICET, Facultad de Medicina, Universidad de Buenos Aires, Combatientes de Malvinas 3150, C1427ARO Buenos Aires, Argentina
| | - Francisco D Rosa
- Laboratorio de Biología Molecular y Apoptosis, Instituto de Investigaciones Médicas Alfredo Lanari, IDIM-CONICET, Facultad de Medicina, Universidad de Buenos Aires, Combatientes de Malvinas 3150, C1427ARO Buenos Aires, Argentina
| | - María C Lira
- Laboratorio de Biología Molecular y Apoptosis, Instituto de Investigaciones Médicas Alfredo Lanari, IDIM-CONICET, Facultad de Medicina, Universidad de Buenos Aires, Combatientes de Malvinas 3150, C1427ARO Buenos Aires, Argentina
| | - Alejandro J Urtreger
- Universidad de Buenos Aires, Instituto de Oncología Ángel H. Roffo, Área Investigación, Av. San Martín 5481, C1417DTB Buenos Aires, Argentina.,Member of the Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
| | - María F Rubio
- Laboratorio de Biología Molecular y Apoptosis, Instituto de Investigaciones Médicas Alfredo Lanari, IDIM-CONICET, Facultad de Medicina, Universidad de Buenos Aires, Combatientes de Malvinas 3150, C1427ARO Buenos Aires, Argentina.,Member of the Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
| | - Mónica A Costas
- Laboratorio de Biología Molecular y Apoptosis, Instituto de Investigaciones Médicas Alfredo Lanari, IDIM-CONICET, Facultad de Medicina, Universidad de Buenos Aires, Combatientes de Malvinas 3150, C1427ARO Buenos Aires, Argentina.,Member of the Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
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Li S, Zhang H, Yu Y, Liu M, Guo D, Zhang X, Zhang J. Imbalanced expression pattern of steroid receptor coactivator-1 and -3 in liver cancer compared with normal liver: An immunohistochemical study with tissue microarray. Oncol Lett 2018; 16:6339-6348. [PMID: 30405769 PMCID: PMC6202514 DOI: 10.3892/ol.2018.9443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Accepted: 08/10/2018] [Indexed: 12/02/2022] Open
Abstract
Steroids affect normal and pathological functions of the liver through receptors, which require coactivators for their transcriptional activation. Steroid receptor coactivator (SRC)-1 and SRC-3 have been demonstrated to be regulated in numerous cancers; however, their expression profiles in liver cancer including hepatocellular carcinoma (HCC) and cholangiocellular carcinoma (CCC) remain unclear. Using tissue microarray immunohistochemistry, normal liver tissue and HCC tissue exhibited immunoreactivity of SRC-1, which were predominantly localized within extranuclear components; in CCC, they were detected within the cell nuclei; SRC-3 was also detected in the cell nuclei. Furthermore, no altered expression of SRC-1 and SRC-3 was observed in liver cancer compared with normal liver tissue; however, in CCC, the expression of SRC-3 was significantly increased compared with that detected in HCC. Importantly, although expression of SRC-1 and SRC-3 did not reveal any significant differences (30 vs. 40%) in normal liver tissue, HCC and CCC expression of SRC-1 was significantly decreased compared with that of SRC-3 (9.3 vs. 36%, and 6.7 vs. 67.7% for HCC and CCC, respectively). Further comparative analysis revealed that this discrepancy was detected in males with liver cancer, across all ages of HCC cases, younger CCC cases and all stages of liver cancer. The results suggested the presence of an imbalanced expression pattern of SRC-1 and SRC-3 from normal liver tissue to liver cancer (decreased SRC-1 and increased SRC-3), which may affect hepatic function and therefore promote liver carcinogenesis.
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Affiliation(s)
- Shan Li
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing 400038, P.R. China.,Cadet Brigade, Third Military Medical University, Chongqing 400038, P.R. China
| | - Huiyan Zhang
- Department of Infectious Diseases, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Yanlan Yu
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing 400038, P.R. China.,Cadet Brigade, Third Military Medical University, Chongqing 400038, P.R. China
| | - Mengying Liu
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing 400038, P.R. China
| | - Deyu Guo
- Institute of Pathology, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Xuqing Zhang
- Department of Infectious Diseases, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Jiqiang Zhang
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing 400038, P.R. China
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Camacho-Arroyo I, González-Arenas A, Jiménez-Arellano C, Morimoto S, Galván-Rosas A, Gómora-Arrati P, García-Juárez M, González-Flores O. Sex hormone levels and expression of their receptors in lactating and lactating pregnant rats. J Steroid Biochem Mol Biol 2018; 178:213-220. [PMID: 29277708 DOI: 10.1016/j.jsbmb.2017.12.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Revised: 12/16/2017] [Accepted: 12/19/2017] [Indexed: 10/18/2022]
Abstract
Parturient rats show a postpartum estrus, a period of sexual receptivity that occurs from 6 to 15 h after the birth of a litter, which allows the mother to gestate a second litter while simultaneously nursing the first one (lactating and pregnant). The present study investigated hormone levels and the expression pattern of estrogen receptor α, and β, progesterone receptor isoforms and SRC1 in the hypothalamus and the preoptic area of lactating as well as in lactating-pregnant rats. In the latter, estradiol levels were 3-fold higher than those observed in lactating rats on day 14, meanwhile progesterone levels did not change in any condition. There were higher levels of prolactin in both lactating and lactating-pregnant rats on day 7 and decreased on the following days. In the hypothalamus of the lactating rat, the content of ERα increased during lactation meanwhile that of ERβ decreased 50% on day 10. The content of both estrogen receptor subtypes in the hypothalamus increased 3-fold on day 21 in lactating-pregnant rats. In the preoptic area, the content of ERα was higher in lactating-pregnant rats on days 14 and 21 while the content of progesterone receptor isoforms was lower as compared with those found in lactating animals on days 7 and 10. The content of SRC1 increased 2-fold in the preoptic area only in lactating rats at day 14 and 21. These findings suggest that lactating- pregnant animals should exhibit differential neuroendocrine and molecular characteristics as compared to lactating animals.
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Affiliation(s)
- Ignacio Camacho-Arroyo
- Unidad de Investigación en Reproducción Humana, Instituto Nacional de Perinatología-Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Aliesha González-Arenas
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Carolina Jiménez-Arellano
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Sumiko Morimoto
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, México
| | - Agustín Galván-Rosas
- Centro de Investigación en Reproducción Animal, Universidad Autónoma de Tlaxcala-CINVESTAV, Tlaxcala, México
| | - Porfirio Gómora-Arrati
- Centro de Investigación en Reproducción Animal, Universidad Autónoma de Tlaxcala-CINVESTAV, Tlaxcala, México
| | - Marcos García-Juárez
- Centro de Investigación en Reproducción Animal, Universidad Autónoma de Tlaxcala-CINVESTAV, Tlaxcala, México
| | - Oscar González-Flores
- Centro de Investigación en Reproducción Animal, Universidad Autónoma de Tlaxcala-CINVESTAV, Tlaxcala, México; Área de Neurociencias, Departamento de Biología de la Reproducción, CBS, UAM-I, Ciudad de México, México.
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Zhao J, Bian C, Liu M, Zhao Y, Sun T, Xing F, Zhang J. Orchiectomy and letrozole differentially regulate synaptic plasticity and spatial memory in a manner that is mediated by SRC-1 in the hippocampus of male mice. J Steroid Biochem Mol Biol 2018; 178:354-368. [PMID: 29452160 DOI: 10.1016/j.jsbmb.2018.02.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 02/07/2018] [Accepted: 02/12/2018] [Indexed: 11/23/2022]
Abstract
Hippocampal synaptic plasticity is the basis of spatial memory and cognition and is strongly regulated by both testicular androgens (testosterone, T) and hippocampal estrogens (17β-estradiol, E2) converted from T by aromatase, which is inhibited by letrozole (LET), but the contribution of each pathway to spatial memory and the associated mechanisms are unclear. In this study, we first used orchiectomy (ORX) and LET injection to investigate the effects of T and hippocampal E2 on spatial memory and hippocampal synaptic plasticity. Next, we examined the changes in steroid receptors and steroid receptor coactivator-1 (SRC-1) under these treatments. Finally, we constructed an SRC-1 RNA interference lentivirus and an AROM overexpression lentivirus to explore the roles of SRC-1 under T replacement and AROM overexpression. The results revealed spatial memory impairment only after LET. LET induced more actin depolymerization and greater losses of spines, synapses, and postsynaptic proteins compared with ORX. Moreover, although ERα and ERβ were affected by LET and ORX at similar levels, AR, GPR30, and SRC-1 were dramatically decreased by LET compared with ORX. Finally, the T and AROM overexpression-induced changes in synaptic proteins and actin polymerization were blocked by SRC-1 inhibition. These results demonstrate that testicular androgens play a limited role, whereas local E2 is more important for cognition, which may explain why castrated men such as eunuchs usually do not have cognitive disorders. These results also suggest a pivotal role of SRC-1 in the action of steroids; thus, SRC-1 may serve as a novel therapeutic target for cognitive disorders.
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Affiliation(s)
- Jikai Zhao
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, 400038, China
| | - Chen Bian
- Department of Military Psychology, College of Psychology, Third Military Medical University, Chongqing, 400038, China
| | - Mengying Liu
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, 400038, China
| | - Yangang Zhao
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, 400038, China
| | - Tao Sun
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, 400038, China
| | - Fangzhou Xing
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, 400038, China; School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Jiqiang Zhang
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, 400038, China.
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44
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Bian C, Huang Y, Zhu H, Zhao Y, Zhao J, Zhang J. Steroid Receptor Coactivator-1 Knockdown Decreases Synaptic Plasticity and Impairs Spatial Memory in the Hippocampus of Mice. Neuroscience 2018. [PMID: 29524638 DOI: 10.1016/j.neuroscience.2018.02.034] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Steroids have been demonstrated to play profound roles in the regulation of hippocampal function by acting on their receptors, which need coactivators for their transcriptional activities. Previous studies have shown that steroid receptor coactivator-1 (SRC-1) is the predominant coactivator in the hippocampus, but its exact role and the underlying mechanisms remain unclear. In this study, we constructed SRC-1 RNA interference (RNAi) lentiviruses, injected them into the hippocampus of male mice, and then examined the changes in the expression of selected synaptic proteins, CA1 synapse density, postsynaptic density (PSD) thickness, and in vivo long-term potentiation (LTP). Spatial learning and memory behavior changes were investigated using the Morris water maze. We then transfected the lentiviruses into cultured hippocampal cells and examined the changes in synaptic protein and phospho-cyclic AMP response element-binding protein (pCREB) expression. The in vivo results showed that SRC-1 knockdown significantly decreased the expression of synaptic proteins and CA1 synapse density as well as PSD thickness; SRC-1 knockdown also significantly impaired in vivo LTP and disrupted spatial learning and memory. The in vitro results showed that while the expression of synaptic proteins was significantly decreased by SRC-1 knockdown, pCREB expression was also significantly decreased. The above results suggest a pivotal role of SRC-1 in the regulation of hippocampal synaptic plasticity and spatial learning and memory, strongly indicating SRC-1 may serve as a novel therapeutic target for hippocampus-dependent memory disorders.
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Affiliation(s)
- Chen Bian
- Department of Military Psychology, College of Psychology, Third Military Medical University, Chongqing 400038, China; Department of Neurobiology, Third Military Medical University, Chongqing 400038, China
| | - Yan Huang
- Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China
| | - Haitao Zhu
- Department of Military Psychology, College of Psychology, Third Military Medical University, Chongqing 400038, China; Medical Company, Troops 95848 of People's Liberation Army, Xiaogan, Hubei 432100, China
| | - Yangang Zhao
- Department of Neurobiology, Third Military Medical University, Chongqing 400038, China
| | - Jikai Zhao
- Department of Neurobiology, Third Military Medical University, Chongqing 400038, China
| | - Jiqiang Zhang
- Department of Neurobiology, Third Military Medical University, Chongqing 400038, China.
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45
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Cao H, Li X, Zhang W, Wang L, Pan Y, Zhou Z, Chen M, Zhang A, Liang Y, Song M. Anti-estrogenic activity of tris(2,3-dibromopropyl) isocyanurate through disruption of co-activator recruitment: experimental and computational studies. Arch Toxicol 2018; 92:1471-1482. [DOI: 10.1007/s00204-018-2159-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 01/17/2018] [Indexed: 12/21/2022]
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46
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Xing FZ, Zhao YG, Zhang YY, He L, Zhao JK, Liu MY, Liu Y, Zhang JQ. Nuclear and membrane estrogen receptor antagonists induce similar mTORC2 activation-reversible changes in synaptic protein expression and actin polymerization in the mouse hippocampus. CNS Neurosci Ther 2018; 24:495-507. [PMID: 29352507 DOI: 10.1111/cns.12806] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 12/23/2017] [Accepted: 12/24/2017] [Indexed: 11/28/2022] Open
Abstract
AIMS Estrogens play pivotal roles in hippocampal synaptic plasticity through nuclear receptors (nERs; including ERα and ERβ) and the membrane receptor (mER; also called GPR30), but the underlying mechanism and the contributions of nERs and mER remain unclear. Mammalian target of rapamycin complex 2 (mTORC2) is involved in actin cytoskeleton polymerization and long-term memory, but whether mTORC2 is involved in the regulation of hippocampal synaptic plasticity by ERs is unclear. METHODS We treated animals with nER antagonists (MPP/PHTPP) or the mER antagonist (G15) alone or in combination with A-443654, an activator of mTORC2. Then, we examined the changes in hippocampal SRC-1 expression, mTORC2 signaling (rictor and phospho-AKTSer473), actin polymerization (phospho-cofilin and profilin-1), synaptic protein expression (GluR1, PSD95, spinophilin, and synaptophysin), CA1 spine density, and synapse density. RESULTS All of the examined parameters except synaptophysin expression were significantly decreased by MPP/PHTPP and G15 treatment. MPP/PHTPP and G15 induced a similar decrease in most parameters except p-cofilin, GluR1, and spinophilin expression. The ER antagonist-induced decreases in these parameters were significantly reversed by mTORC2 activation, except for the change in SRC-1, rictor, and synaptophysin expression. CONCLUSIONS nERs and mER contribute similarly to the changes in proteins and structures associated with synaptic plasticity, and mTORC2 may be a novel target of hippocampal-dependent dementia such as Alzheimer's disease as proposed by previous studies.
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Affiliation(s)
- Fang-Zhou Xing
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Chongqing, China
| | - Yan-Gang Zhao
- Department of Neurobiology, Third Military Medical University, Chongqing, China
| | - Yuan-Yuan Zhang
- Department of Neurobiology, Third Military Medical University, Chongqing, China
| | - Li He
- School of Nursing, Third Military Medical University, Chongqing, China
| | - Ji-Kai Zhao
- Department of Neurobiology, Third Military Medical University, Chongqing, China
| | - Meng-Ying Liu
- Department of Neurobiology, Third Military Medical University, Chongqing, China
| | - Yan Liu
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Chongqing, China
| | - Ji-Qiang Zhang
- Department of Neurobiology, Third Military Medical University, Chongqing, China
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Hua Y, Camarco DP, Strock CJ, Johnston PA. High Content Positional Biosensor Assay to Screen for Compounds that Prevent or Disrupt Androgen Receptor and Transcription Intermediary Factor 2 Protein-Protein Interactions. Methods Mol Biol 2018; 1683:211-227. [PMID: 29082495 DOI: 10.1007/978-1-4939-7357-6_13] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Abstract
Transcriptional Intermediary Factor 2 (TIF2) is a key Androgen receptor (AR) coactivator that has been implicated in the development and progression of castration resistant prostate cancer (CRPC). This chapter describes the implementation of an AR-TIF2 protein-protein interaction (PPI) biosensor assay to screen for small molecules that can induce AR-TIF2 PPIs, inhibit the DHT-induced formation of AR-TIF2 PPIs, or disrupt pre-existing AR-TIF2 PPIs. The biosensor assay employs high content imaging and analysis to quantify AR-TIF2 PPIs and integrates physiologically relevant cell-based assays with the specificity of binding assays by incorporating structural information from AR and TIF2 functional domains along with intracellular targeting sequences using fluorescent protein reporters. Expression of the AR-Red Fluorescent Protein (RFP) "prey" and TIF2-Green Fluorescent Protein (GFP) "bait" components of the biosensor is directed by recombinant adenovirus (rAV) expression constructs that facilitated a simple co-infection protocol to produce homogeneous expression of both biosensors that is scalable for screening. In untreated cells, AR-RFP expression is localized predominantly to the cytoplasm and TIF2-GFP expression is localized only in the nucleoli of the nucleus. Exposure to DHT induces the co-localization of AR-RFP within the TIF2-GFP positive nucleoli of the nucleus. The AR-TIF2 biosensor assay therefore recapitulates the ligand-induced translocation of latent AR from the cytoplasm to the nucleus, and the PPIs between AR and TIF2 result in the colocalization of AR-RFP within TIF2-GFP expressing nucleoli. The AR-TIF2 PPI biosensor approach offers significant promise for identifying molecules with potential to modulate AR transcriptional activity in a cell-specific manner that may overcome the development of resistance and progression to CRPC.
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Affiliation(s)
- Yun Hua
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Room 586 Salk Hall, 3501 Terrace Street, Pittsburgh, PA, 15261, USA
| | - Daniel P Camarco
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Room 586 Salk Hall, 3501 Terrace Street, Pittsburgh, PA, 15261, USA
| | | | - Paul A Johnston
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Room 586 Salk Hall, 3501 Terrace Street, Pittsburgh, PA, 15261, USA.
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Brunetti M, Panagopoulos I, Gorunova L, Davidson B, Heim S, Micci F. RNA-sequencing identifies novel GREB1-NCOA2 fusion gene in a uterine sarcoma with the chromosomal translocation t(2;8)(p25;q13). Genes Chromosomes Cancer 2017; 57:176-181. [PMID: 29218853 PMCID: PMC5838407 DOI: 10.1002/gcc.22518] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 12/04/2017] [Accepted: 12/04/2017] [Indexed: 01/03/2023] Open
Abstract
Sarcomas account for 3% of all uterine malignancies and many of them are characterized by acquired, specific fusion genes whose detection has increased pathogenetic knowledge and diagnostic precision. We describe a novel fusion gene, GREB1-NCOA2, detected by transcriptome sequencing and validated by reverse transcriptase polymerase chain reaction and Sanger sequencing in an undifferentiated uterine sarcoma. The chimeric transcript was an in-frame fusion between exon 3 of GREB1 and exon 15 of NCOA2. The fusion is reported here for the first time, but it involves the GREB1 gene, an important promoter of tumor growth and progression, and NCOA2 which is known to be involved in transcriptional regulation. The alteration and recombination of these genes played a role in the tumorigenesis and/or progression of this sarcoma.
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Affiliation(s)
- Marta Brunetti
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Ioannis Panagopoulos
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Ludmila Gorunova
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Ben Davidson
- Department of Pathology, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Sverre Heim
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Francesca Micci
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
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Jin J, Wang T, Wang Y, Chen S, Li Z, Li X, Zhang J, Wang J. SRC3 expressed in BMSCs promotes growth and migration of multiple myeloma cells by regulating the expression of Cx43. Int J Oncol 2017; 51:1694-1704. [PMID: 29075794 PMCID: PMC5673026 DOI: 10.3892/ijo.2017.4171] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 09/28/2017] [Indexed: 12/14/2022] Open
Abstract
Interactions between bone marrow stromal cells (BMSCs) and multiple myeloma cells significantly contribute to the progression of multiple myeloma (MM). However, little is known about the molecular mechanisms that regulate these interactions. Connexin-43 (Cx-43) has been implicated in the interplay between BMSCs and MM cells. In this study, we hypothesized that the steroid receptor co-activator-3 (SRC3) expressed in BMSCs regulates the expression of Cx-43 to promote the proliferation and migration of myeloma cells. To address this, we co-cultured a human multiple myeloma cell line, RPMI-8226 transfected with either control BMSCs or sh-SRC3-BMSCs. We found that knocking down SRC3 expression in BMSCs inhibited the proliferation and migration of RPMI-8226 cells. In addition, we found that co-culturing RPMI 8266 cells with BMSCs increased Cx43 expression, while knocking down SRC3 expression in BMSCs decreased Cx43 expression. Moreover, our work revealed that SRC3 in BMSCs regulates Cx43 expression via the mitogen-activated protein kinase (MAPK) pathway. To validate this result in vivo, we knocked down SRC3 expression in BMSCs in nude mice and found that tumor growth and cell apoptosis were significantly decreased. In addition, mice treated with either RPMI 8266 cells overexpressing Cx43 or with a P38 MAPK inhibitor (SB202190) exhibited increased intratumoral leukocyte populations and promoted cell apoptosis in tumor tissue. Our findings demonstrate how SRC3 and Cx43 regulation between BMSCs and myeloma cells mediate cell growth and disease progression, with potential implications for prognosis and therapeutic interventions.
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Affiliation(s)
- Jie Jin
- Department of Hematology, The Third Affiliated Daping Hospital of Army Medical University, Chongqing 400042, P.R. China
| | - Tao Wang
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, College of Preventive Medicine, Army Medical University, Chongqing 400038, P.R. China
| | - Yu Wang
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, College of Preventive Medicine, Army Medical University, Chongqing 400038, P.R. China
| | - Shidi Chen
- Department of Hematology, The Third Affiliated Daping Hospital of Army Medical University, Chongqing 400042, P.R. China
| | - Zheng Li
- Department of Hematology, The Third Affiliated Daping Hospital of Army Medical University, Chongqing 400042, P.R. China
| | - Xiang Li
- Department of Hematology, The Third Affiliated Daping Hospital of Army Medical University, Chongqing 400042, P.R. China
| | - Jiazhen Zhang
- Department of Hematology, The Third Affiliated Daping Hospital of Army Medical University, Chongqing 400042, P.R. China
| | - Jin Wang
- Department of Hematology, The Third Affiliated Daping Hospital of Army Medical University, Chongqing 400042, P.R. China
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Batlle C, de Groot NS, Iglesias V, Navarro S, Ventura S. Characterization of Soft Amyloid Cores in Human Prion-Like Proteins. Sci Rep 2017; 7:12134. [PMID: 28935930 PMCID: PMC5608858 DOI: 10.1038/s41598-017-09714-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 07/28/2017] [Indexed: 12/12/2022] Open
Abstract
Prion-like behaviour is attracting much attention due to the growing evidences that amyloid-like self-assembly may reach beyond neurodegeneration and be a conserved functional mechanism. The best characterized functional prions correspond to a subset of yeast proteins involved in translation or transcription. Their conformational promiscuity is encoded in Prion Forming Domains (PFDs), usually long and intrinsically disordered protein segments of low complexity. The compositional bias of these regions seems to be important for the transition between soluble and amyloid-like states. We have proposed that the presence of cryptic soft amyloid cores embedded in yeast PFDs can also be important for their assembly and demonstrated their existence and self-propagating abilities. Here, we used an orthogonal approach in the search of human domains that share yeast PFDs compositional bias and exhibit a predicted nucleating core, identifying 535 prion-like candidates. We selected seven proteins involved in transcriptional or translational regulation and associated to disease to characterize the properties of their amyloid cores. All of them self-assemble spontaneously into amyloid-like structures able to propagate their polymeric state. This provides support for the presence of short sequences able to trigger conformational conversion in prion-like human proteins, potentially regulating their functionality.
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Affiliation(s)
- Cristina Batlle
- Institut de Biotecnologia i de Biomedicina and Departament de Bioquímica i Biologia Molecular, Universitat Autónoma de Barcelona, Bellaterra, 08193, Spain
| | - Natalia Sanchez de Groot
- Bioinformatics and Genomics Programme, Centre for Genomic Regulation (CRG), The Barcelona Institute for Science and Technology, Dr. Aiguader 88, 08003, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Valentin Iglesias
- Institut de Biotecnologia i de Biomedicina and Departament de Bioquímica i Biologia Molecular, Universitat Autónoma de Barcelona, Bellaterra, 08193, Spain
| | - Susanna Navarro
- Institut de Biotecnologia i de Biomedicina and Departament de Bioquímica i Biologia Molecular, Universitat Autónoma de Barcelona, Bellaterra, 08193, Spain
| | - Salvador Ventura
- Institut de Biotecnologia i de Biomedicina and Departament de Bioquímica i Biologia Molecular, Universitat Autónoma de Barcelona, Bellaterra, 08193, Spain.
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