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Ghaibour K, Schuh M, Souali-Crespo S, Chambon C, Charlot A, Rizk J, Rovito D, Rerra AI, Cai Q, Messaddeq N, Zoll J, Duteil D, Metzger D. Androgen receptor coordinates muscle metabolic and contractile functions. J Cachexia Sarcopenia Muscle 2023. [PMID: 37208984 PMCID: PMC10401547 DOI: 10.1002/jcsm.13251] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 04/08/2023] [Accepted: 04/15/2023] [Indexed: 05/21/2023] Open
Abstract
BACKGROUND Androgens are anabolic steroid hormones that exert their function by binding to the androgen receptor (AR). We have previously established that AR deficiency in limb muscles impairs sarcomere myofibrillar organization and decreases muscle strength in male mice. However, despite numerous studies performed in men and rodents, the signalling pathways controlled by androgens via their receptor in skeletal muscles remain poorly understood. METHODS Male ARskm-/y (n = 7-12) and female ARskm-/- mice (n = 9), in which AR is selectively ablated in myofibres of musculoskeletal tissue, and male AR(i)skm-/y , in which AR is selectively ablated in post-mitotic skeletal muscle myofibres (n = 6), were generated. Longitudinal monitoring of body weight, blood glucose, insulin, lipids and lipoproteins was performed, alongside metabolomic analyses. Glucose metabolism was evaluated in C2C12 cells treated with 5α-dihydrotestosterone (DHT) and the anti-androgen flutamide (n = 6). Histological analyses on macroscopic and ultrastructural levels of longitudinal and transversal muscle sections were conducted. The transcriptome of gastrocnemius muscles from control and ARskm-/y mice was analysed at the age of 9 weeks (P < 0.05, 2138 differentially expressed genes) and validated by RT-qPCR analysis. The AR (4691 peaks with false discovery rate [FDR] < 0.1) and H3K4me2 (47 225 peaks with FDR < 0.05) cistromes in limb muscles were determined in 11-week-old wild-type mice. RESULTS We show that disrupting the androgen/AR axis impairs in vivo glycolytic activity and fastens the development of type 2 diabetes in male, but not in female mice. In agreement, treatment with DHT increases glycolysis in C2C12 myotubes by 30%, whereas flutamide has an opposite effect. Fatty acids are less efficiently metabolized in skeletal muscles of ARskm-/y mice and accumulate in cytoplasm, despite increased transcript levels of genes encoding key enzymes of beta-oxidation and mitochondrial content. Impaired glucose and fatty acid metabolism in AR-deficient muscle fibres is associated with 30% increased lysine and branched-chain amino acid catabolism, decreased polyamine biosynthesis and disrupted glutamate transamination. This metabolic switch generates ammonia (2-fold increase) and oxidative stress (30% increased H2 O2 levels), which impacts mitochondrial functions and causes necrosis in <1% fibres. We unravel that AR directly activates the transcription of genes involved in glycolysis, oxidative metabolism and muscle contraction. CONCLUSIONS Our study provides important insights into diseases caused by impaired AR function in musculoskeletal system and delivers a deeper understanding of skeletal muscle pathophysiological dynamics that is instrumental to develop effective treatment for muscle disorders.
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Affiliation(s)
- Kamar Ghaibour
- Université de Strasbourg, CNRS, Inserm, IGBMC UMR 7104-UMR-S 1258, Illkirch, France
| | - Mélanie Schuh
- Université de Strasbourg, CNRS, Inserm, IGBMC UMR 7104-UMR-S 1258, Illkirch, France
| | - Sirine Souali-Crespo
- Université de Strasbourg, CNRS, Inserm, IGBMC UMR 7104-UMR-S 1258, Illkirch, France
| | - Céline Chambon
- Université de Strasbourg, CNRS, Inserm, IGBMC UMR 7104-UMR-S 1258, Illkirch, France
| | - Anouk Charlot
- Centre de Recherche de Biomédecine de Strasbourg, UR 3072 Mitochondrie, Stress Oxydant et Protection Musculaire, Université de Strasbourg, Strasbourg, France
| | - Joe Rizk
- Université de Strasbourg, CNRS, Inserm, IGBMC UMR 7104-UMR-S 1258, Illkirch, France
| | - Daniela Rovito
- Université de Strasbourg, CNRS, Inserm, IGBMC UMR 7104-UMR-S 1258, Illkirch, France
| | - Anna-Isavella Rerra
- Université de Strasbourg, CNRS, Inserm, IGBMC UMR 7104-UMR-S 1258, Illkirch, France
| | - Qingshuang Cai
- Université de Strasbourg, CNRS, Inserm, IGBMC UMR 7104-UMR-S 1258, Illkirch, France
| | - Nadia Messaddeq
- Université de Strasbourg, CNRS, Inserm, IGBMC UMR 7104-UMR-S 1258, Illkirch, France
| | - Joffrey Zoll
- Centre de Recherche de Biomédecine de Strasbourg, UR 3072 Mitochondrie, Stress Oxydant et Protection Musculaire, Université de Strasbourg, Strasbourg, France
| | - Delphine Duteil
- Université de Strasbourg, CNRS, Inserm, IGBMC UMR 7104-UMR-S 1258, Illkirch, France
| | - Daniel Metzger
- Université de Strasbourg, CNRS, Inserm, IGBMC UMR 7104-UMR-S 1258, Illkirch, France
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Belorusova AY, Rovito D, Chebaro Y, Doms S, Verlinden L, Verstuyf A, Metzger D, Rochel N, Laverny G. Vitamin D Analogs Bearing C-20 Modifications Stabilize the Agonistic Conformation of Non-Responsive Vitamin D Receptor Variants. Int J Mol Sci 2022; 23:ijms23158445. [PMID: 35955580 PMCID: PMC9369186 DOI: 10.3390/ijms23158445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 07/26/2022] [Accepted: 07/27/2022] [Indexed: 12/04/2022] Open
Abstract
The Vitamin D receptor (VDR) plays a key role in calcium homeostasis, as well as in cell proliferation and differentiation. Among the large number of VDR ligands that have been developed, we have previously shown that BXL-62 and Gemini-72, two C-20-modified vitamin D analogs are highly potent VDR agonists. In this study, we show that both VDR ligands restore the transcriptional activities of VDR variants unresponsive to the natural ligand and identified in patients with rickets. The elucidated mechanisms of action underlying the activities of these C-20-modified analogs emphasize the mutual adaptation of the ligand and the VDR ligand-binding pocket.
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Affiliation(s)
- Anna Y. Belorusova
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), F-67400 Illkirch, France; (A.Y.B.); (D.R.); (Y.C.); (D.M.)
- Centre National de la Recherche Scientifique (CNRS), UMR 7104, F-67400 Illkirch, France
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR-S 1258, F-67400 Illkirch, France
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, INSERM U1258, CNRS UMR 7104, 67404 Illkirch, France
| | - Daniela Rovito
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), F-67400 Illkirch, France; (A.Y.B.); (D.R.); (Y.C.); (D.M.)
- Centre National de la Recherche Scientifique (CNRS), UMR 7104, F-67400 Illkirch, France
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR-S 1258, F-67400 Illkirch, France
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, INSERM U1258, CNRS UMR 7104, 67404 Illkirch, France
- OSCAR, French Network for Rare Bone Diseases, 94270 Le Kremlin-Bicêtre, France
| | - Yassmine Chebaro
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), F-67400 Illkirch, France; (A.Y.B.); (D.R.); (Y.C.); (D.M.)
- Centre National de la Recherche Scientifique (CNRS), UMR 7104, F-67400 Illkirch, France
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR-S 1258, F-67400 Illkirch, France
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, INSERM U1258, CNRS UMR 7104, 67404 Illkirch, France
| | - Stefanie Doms
- Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, 3000 Leuven, Belgium; (S.D.); (L.V.); (A.V.)
| | - Lieve Verlinden
- Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, 3000 Leuven, Belgium; (S.D.); (L.V.); (A.V.)
| | - Annemieke Verstuyf
- Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, 3000 Leuven, Belgium; (S.D.); (L.V.); (A.V.)
| | - Daniel Metzger
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), F-67400 Illkirch, France; (A.Y.B.); (D.R.); (Y.C.); (D.M.)
- Centre National de la Recherche Scientifique (CNRS), UMR 7104, F-67400 Illkirch, France
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR-S 1258, F-67400 Illkirch, France
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, INSERM U1258, CNRS UMR 7104, 67404 Illkirch, France
- OSCAR, French Network for Rare Bone Diseases, 94270 Le Kremlin-Bicêtre, France
| | - Natacha Rochel
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), F-67400 Illkirch, France; (A.Y.B.); (D.R.); (Y.C.); (D.M.)
- Centre National de la Recherche Scientifique (CNRS), UMR 7104, F-67400 Illkirch, France
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR-S 1258, F-67400 Illkirch, France
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, INSERM U1258, CNRS UMR 7104, 67404 Illkirch, France
- Correspondence: (N.R.); (G.L.)
| | - Gilles Laverny
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), F-67400 Illkirch, France; (A.Y.B.); (D.R.); (Y.C.); (D.M.)
- Centre National de la Recherche Scientifique (CNRS), UMR 7104, F-67400 Illkirch, France
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR-S 1258, F-67400 Illkirch, France
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, INSERM U1258, CNRS UMR 7104, 67404 Illkirch, France
- OSCAR, French Network for Rare Bone Diseases, 94270 Le Kremlin-Bicêtre, France
- Correspondence: (N.R.); (G.L.)
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Abu el Maaty MA, Terzic J, Keime C, Rovito D, Lutzing R, Yanushko D, Parisotto M, Grelet E, Namer IJ, Lindner V, Laverny G, Metzger D. Hypoxia-mediated stabilization of HIF1A in prostatic intraepithelial neoplasia promotes cell plasticity and malignant progression. Sci Adv 2022; 8:eabo2295. [PMID: 35867798 PMCID: PMC9307253 DOI: 10.1126/sciadv.abo2295] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Prostate cancer (PCa) is a leading cause of cancer-related deaths. The slow evolution of precancerous lesions to malignant tumors provides a broad time frame for preventing PCa. To characterize prostatic intraepithelial neoplasia (PIN) progression, we conducted longitudinal studies on Pten(i)pe-/- mice that recapitulate prostate carcinogenesis in humans. We found that early PINs are hypoxic and that hypoxia-inducible factor 1 alpha (HIF1A) signaling is activated in luminal cells, thus enhancing malignant progression. Luminal HIF1A dampens immune surveillance and drives luminal plasticity, leading to the emergence of cells that overexpress Transglutaminase 2 (TGM2) and have impaired androgen signaling. Elevated TGM2 levels in patients with PCa are associated with shortened progression-free survival after prostatectomy. Last, we show that pharmacologically inhibiting HIF1A impairs cell proliferation and induces apoptosis in PINs. Therefore, our study demonstrates that HIF1A is a target for PCa prevention and that TGM2 is a promising prognostic biomarker of early relapse after prostatectomy.
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Affiliation(s)
- Mohamed A. Abu el Maaty
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France
- Centre National de la Recherche Scientifique (CNRS), UMR7104, Illkirch, France
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1258, Illkirch, France
- Université de Strasbourg, Strasbourg, France
| | - Julie Terzic
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France
- Centre National de la Recherche Scientifique (CNRS), UMR7104, Illkirch, France
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1258, Illkirch, France
- Université de Strasbourg, Strasbourg, France
| | - Céline Keime
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France
- Centre National de la Recherche Scientifique (CNRS), UMR7104, Illkirch, France
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1258, Illkirch, France
- Université de Strasbourg, Strasbourg, France
| | - Daniela Rovito
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France
- Centre National de la Recherche Scientifique (CNRS), UMR7104, Illkirch, France
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1258, Illkirch, France
- Université de Strasbourg, Strasbourg, France
| | - Régis Lutzing
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France
- Centre National de la Recherche Scientifique (CNRS), UMR7104, Illkirch, France
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1258, Illkirch, France
- Université de Strasbourg, Strasbourg, France
| | - Darya Yanushko
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France
- Centre National de la Recherche Scientifique (CNRS), UMR7104, Illkirch, France
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1258, Illkirch, France
- Université de Strasbourg, Strasbourg, France
| | - Maxime Parisotto
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France
- Centre National de la Recherche Scientifique (CNRS), UMR7104, Illkirch, France
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1258, Illkirch, France
- Université de Strasbourg, Strasbourg, France
| | - Elise Grelet
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France
- Centre National de la Recherche Scientifique (CNRS), UMR7104, Illkirch, France
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1258, Illkirch, France
- Université de Strasbourg, Strasbourg, France
| | - Izzie Jacques Namer
- Université de Strasbourg, Strasbourg, France
- ICube, CNRS, UMR 7357, Strasbourg, France
| | - Véronique Lindner
- Département de Pathologie, Les Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Gilles Laverny
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France
- Centre National de la Recherche Scientifique (CNRS), UMR7104, Illkirch, France
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1258, Illkirch, France
- Université de Strasbourg, Strasbourg, France
- Corresponding author. (D.M.); (G.L.)
| | - Daniel Metzger
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France
- Centre National de la Recherche Scientifique (CNRS), UMR7104, Illkirch, France
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1258, Illkirch, France
- Université de Strasbourg, Strasbourg, France
- Corresponding author. (D.M.); (G.L.)
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Rovito D, Rerra AI, Ueberschlag-Pitiot V, Joshi S, Karasu N, Dacleu-Siewe V, Rayana KB, Ghaibour K, Parisotto M, Ferry A, Jelinsky SA, Laverny G, Klaholz BP, Sexton T, Billas IML, Duteil D, Metzger D. Myod1 and GR coordinate myofiber-specific transcriptional enhancers. Nucleic Acids Res 2021; 49:4472-4492. [PMID: 33836079 PMCID: PMC8096230 DOI: 10.1093/nar/gkab226] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 03/12/2021] [Accepted: 03/23/2021] [Indexed: 12/13/2022] Open
Abstract
Skeletal muscle is a dynamic tissue the size of which can be remodeled through the concerted actions of various cues. Here, we investigated the skeletal muscle transcriptional program and identified key tissue-specific regulatory genetic elements. Our results show that Myod1 is bound to numerous skeletal muscle enhancers in collaboration with the glucocorticoid receptor (GR) to control gene expression. Remarkably, transcriptional activation controlled by these factors occurs through direct contacts with the promoter region of target genes, via the CpG-bound transcription factor Nrf1, and the formation of Ctcf-anchored chromatin loops, in a myofiber-specific manner. Moreover, we demonstrate that GR negatively controls muscle mass and strength in mice by down-regulating anabolic pathways. Taken together, our data establish Myod1, GR and Nrf1 as key players of muscle-specific enhancer-promoter communication that orchestrate myofiber size regulation.
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Affiliation(s)
- Daniela Rovito
- Université de Strasbourg, CNRS UMR7104, INSERM U1258, IGBMC, F-67400 Illkirch, France
| | - Anna-Isavella Rerra
- Université de Strasbourg, CNRS UMR7104, INSERM U1258, IGBMC, F-67400 Illkirch, France
| | | | - Shilpy Joshi
- Université de Strasbourg, CNRS UMR7104, INSERM U1258, IGBMC, F-67400 Illkirch, France
| | - Nezih Karasu
- Université de Strasbourg, CNRS UMR7104, INSERM U1258, IGBMC, F-67400 Illkirch, France
| | - Vanessa Dacleu-Siewe
- Université de Strasbourg, CNRS UMR7104, INSERM U1258, IGBMC, F-67400 Illkirch, France
| | - Khalil Ben Rayana
- Université de Strasbourg, CNRS UMR7104, INSERM U1258, IGBMC, F-67400 Illkirch, France
| | - Kamar Ghaibour
- Université de Strasbourg, CNRS UMR7104, INSERM U1258, IGBMC, F-67400 Illkirch, France
| | - Maxime Parisotto
- Université de Strasbourg, CNRS UMR7104, INSERM U1258, IGBMC, F-67400 Illkirch, France
| | - Arnaud Ferry
- Centre de Recherche en Myologie, UMRS974-Sorbonne Université-INSERM U974-Association Institut de Myologie, France
| | - Scott A Jelinsky
- Department of Inflammation and Immunology, Pfizer Research, Cambridge, MA, USA
| | - Gilles Laverny
- Université de Strasbourg, CNRS UMR7104, INSERM U1258, IGBMC, F-67400 Illkirch, France
| | - Bruno P Klaholz
- Université de Strasbourg, CNRS UMR7104, INSERM U1258, IGBMC, F-67400 Illkirch, France
| | - Tom Sexton
- Université de Strasbourg, CNRS UMR7104, INSERM U1258, IGBMC, F-67400 Illkirch, France
| | - Isabelle M L Billas
- Université de Strasbourg, CNRS UMR7104, INSERM U1258, IGBMC, F-67400 Illkirch, France
| | - Delphine Duteil
- Université de Strasbourg, CNRS UMR7104, INSERM U1258, IGBMC, F-67400 Illkirch, France
| | - Daniel Metzger
- Université de Strasbourg, CNRS UMR7104, INSERM U1258, IGBMC, F-67400 Illkirch, France
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Giannini M, Laverny G, Duteil D, Rovito D, Charles AL, Geny B, Metzger D, Meyer A. OP0247 IN MYOSITIS MUSCLE FIBRE PLAYS A DIRECT AND CRITICAL ROLE IN THERAPEUTIC RESPONSE TO GLUCOCORTICOIDS. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.2863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Myositis are rare autoimmune diseases, affecting more women than men, characterized by chronic inflammation of skeletal muscle causing muscle weakness, decreased quality of life and increased mortality.Glucocorticoids (GC) are potent anti-inflammatory drugs, and are the first line treatment of myositis. They improve muscle strength of myositis patients (therapeutic effect), yet muscle recovery is generally only partial. Moreover, GC have an iatrogenic effect on skeletal muscle fibre leading to steroid myopathy. Thus myositis care has to be improved. Despite the autoimmune terrain of myositis, our team has recently shown that muscle fibres themselves develop immuno-metabolic modifications that participate to muscle weakness and perpetuation of the disease1. GC effects are mediated by the glucocorticoid receptor (GR), which is expressed in various cell types including immune cells and myofibres, but the cells mediating therapeutic responses remain to be determined.Objectives:Unravel the mechanisms underlying the therapeutic effect of GC in myositis, particularly elucidate the role of skeletal muscle fibres.Methods:Experimental myositis was induced in eight to ten week-old C57BL/6J female mice by a single intradermal injection of part of skeletal muscle fast-type C protein along with Freund’s adjuvant and an intraperitoneal (IP) injection of pertussis toxin, as previously described2. Prednisone (PDN) was administered 14 days (D) after the immunization at 1 mg/kg/day for 7 days by gavage. Mice were euthanized 21 days after myositis induction. Muscle strength was assessed by grip test at D 0, before the 1st PDN administration (D 14) and the day before sacrifice (D 20). To investigate whether the PDN effects are mediated by myofibre, we generated transgenic mice carrying two LoxP sites within the GR gene in muscle, expressing the tamoxifen-inducible Cre-ERT2 recombinase selectively in skeletal muscle fibre (HSA-CreERT2/GR L2/L2). Tamoxifen (1 mg/day for 5 days by IP injection) was administered 9 days after immunization to induce GR ablation selectively in skeletal muscle fibres (GR(i)skm-/- mice). Similar treatments were applied to GR L2/L2 that do not express Cre-ER(T2), and served as controls.We compared 4 groups of myositis mice, GR L2/L2 treated by PDN (n=9) or vehicle (n=9) and GR(i)skm-/- treated by PDN (n=10) or vehicle (n=10), by grip test and at the histological level (hematoxylin-eosin (HE) and Gomori trichrome (GT) staining). Moreover, LC3 expression was studied by RTqPCR and western blot.Results:Muscle strength was decreased in both GR L2/L2 and GR(i)skm-/- myositis mice from D 14 to D 20. GR L2/L2 myositis mice recovered muscle strength after PDN treatment; no significant difference compared to D 0 was detected. In contrast, PDN did not improve muscle strength in GR(i)skm-/- myositis mice (Figure 1).HE and GT staining did not reveal quantitative differences in inflammatory infiltrate. Necrotic and degenerative fibres were detected in the 4 groups. At RTqPCR, LC3, an autophagy marker, was upregulated in PDN-treated GR L2/L2 myositis mice compared to untreated GR L2/L2 myositis mice; moreover it was 2-fold more expressed in PDN-treated GR L2/L2 myositis mice compared to PDN-treated GR(i)skm-/- mice.Conclusion:GR in skeletal muscle fibre is crucial to mediate the therapeutic response to GC in a murine model of myositis. Autophagy is one of the candidate pathways controlled by myofibre GR underlying this effect.References:[1]Meyer A et al. IFN-β-induced reactive oxygen species and mitochondrial damage contribute to muscle impairment and inflammation maintenance in dermatomyositis. Acta Neuropathol. 2017 Oct;134(4):655-666.[2]Sugihara T et al. A new murine model to define the critical pathologic and therapeutic mediators of polymyositis. Arthritis Rheum. 2007 Apr;56(4):1304-14.Disclosure of Interests:None declared
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Rovito D, Belorusova AY, Chalhoub S, Rerra AI, Guiot E, Molin A, Linglart A, Rochel N, Laverny G, Metzger D. Cytosolic sequestration of the vitamin D receptor as a therapeutic option for vitamin D-induced hypercalcemia. Nat Commun 2020; 11:6249. [PMID: 33288743 PMCID: PMC7721737 DOI: 10.1038/s41467-020-20069-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 11/12/2020] [Indexed: 11/09/2022] Open
Abstract
The bioactive vitamin D3, 1α,25(OH)2D3, plays a central role in calcium homeostasis by controlling the activity of the vitamin D receptor (VDR) in various tissues. Hypercalcemia secondary to high circulating levels of vitamin D3 leads to hypercalciuria, nephrocalcinosis and renal dysfunctions. Current therapeutic strategies aim at limiting calcium intake, absorption and resorption, or 1α,25(OH)2D3 synthesis, but are poorly efficient. In this study, we identify WBP4 as a new VDR interactant, and demonstrate that it controls VDR subcellular localization. Moreover, we show that the vitamin D analogue ZK168281 enhances the interaction between VDR and WBP4 in the cytosol, and normalizes the expression of VDR target genes and serum calcium levels in 1α,25(OH)2D3-intoxicated mice. As ZK168281 also blunts 1α,25(OH)2D3-induced VDR signaling in fibroblasts of a patient with impaired vitamin D degradation, this VDR antagonist represents a promising therapeutic option for 1α,25(OH)2D3-induced hypercalcemia. Current therapeutic strategies for vitamin D-induced hypercalcemia are poorly efficient. Here the authors identify a new interaction between the vitamin D receptor (VDR) and WBP4 controlling the subcellular localization of VDR and show that ZK168281, a VDR antagonist, enhances the interaction between VDR and WBP4 blunting VDR signalling and normalizing calcium levels in vitamin D-intoxicated mice.
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Affiliation(s)
- Daniela Rovito
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France.,Centre National de la Recherche Scientifique, UMR7104, Illkirch, France.,Institut National de la Santé et de la Recherche Médicale (INSERM), U1258, Illkirch, France.,Université de Strasbourg, Illkirch, France
| | - Anna Y Belorusova
- Medicinal Chemistry, Respiratory, Inflammation and Autoimmunity, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Sandra Chalhoub
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France.,Centre National de la Recherche Scientifique, UMR7104, Illkirch, France.,Institut National de la Santé et de la Recherche Médicale (INSERM), U1258, Illkirch, France.,Université de Strasbourg, Illkirch, France
| | - Anna-Isavella Rerra
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France.,Centre National de la Recherche Scientifique, UMR7104, Illkirch, France.,Institut National de la Santé et de la Recherche Médicale (INSERM), U1258, Illkirch, France.,Université de Strasbourg, Illkirch, France
| | - Elvire Guiot
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France.,Centre National de la Recherche Scientifique, UMR7104, Illkirch, France.,Institut National de la Santé et de la Recherche Médicale (INSERM), U1258, Illkirch, France.,Université de Strasbourg, Illkirch, France
| | - Arnaud Molin
- Université de Normandie, UNICAEN, CHU de Caen Normandie, Service de Génétique, EA 7450 BIOTARGEN, Caen, France.,Reference Center for Rare Diseases of Calcium and Phosphorus Metabolism (OSCAR), Paris, France
| | - Agnès Linglart
- Reference Center for Rare Diseases of Calcium and Phosphorus Metabolism (OSCAR), Paris, France.,Université de Paris Saclay, AP-HP, Hôpital Bicêtre, DMU SEA, INSERM, U1185, Le Kremlin Bicêtre, France
| | - Natacha Rochel
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France.,Centre National de la Recherche Scientifique, UMR7104, Illkirch, France.,Institut National de la Santé et de la Recherche Médicale (INSERM), U1258, Illkirch, France.,Université de Strasbourg, Illkirch, France
| | - Gilles Laverny
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France. .,Centre National de la Recherche Scientifique, UMR7104, Illkirch, France. .,Institut National de la Santé et de la Recherche Médicale (INSERM), U1258, Illkirch, France. .,Université de Strasbourg, Illkirch, France.
| | - Daniel Metzger
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France. .,Centre National de la Recherche Scientifique, UMR7104, Illkirch, France. .,Institut National de la Santé et de la Recherche Médicale (INSERM), U1258, Illkirch, France. .,Université de Strasbourg, Illkirch, France.
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7
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Abstract
Vitamin D receptor (VDR) antagonists prevent the VDR activation function helix 12 from folding into its active conformation, thus affecting coactivator recruitment and antagonizing the transcriptional regulation induced by 1α,25-dihydroxyvitamin D3. Here, we report the crystal structure of the zebrafish VDR ligand-binding domain in complex with the ZK168281 antagonist, revealing that the ligand prevents optimal folding of the C-terminal region of VDR. This interference was confirmed by hydrogen-deuterium exchange mass spectrometry (HDX-MS) in solution.
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Affiliation(s)
- Anna Y Belorusova
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), 67400 Illkirch, France.,Institut National de La Santé et de La Recherche Médicale (INSERM), U1258, 67400 Illkirch, France.,Centre National de Recherche Scientifique (CNRS), UMR7104, 67400 Illkirch, France.,Université de Strasbourg, 67400 Illkirch, France.,Medicinal Chemistry, Early Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, 431 83 Gothenburg, Sweden
| | - Sandra Chalhoub
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), 67400 Illkirch, France.,Institut National de La Santé et de La Recherche Médicale (INSERM), U1258, 67400 Illkirch, France.,Centre National de Recherche Scientifique (CNRS), UMR7104, 67400 Illkirch, France.,Université de Strasbourg, 67400 Illkirch, France
| | - Daniela Rovito
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), 67400 Illkirch, France.,Institut National de La Santé et de La Recherche Médicale (INSERM), U1258, 67400 Illkirch, France.,Centre National de Recherche Scientifique (CNRS), UMR7104, 67400 Illkirch, France.,Université de Strasbourg, 67400 Illkirch, France
| | - Natacha Rochel
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), 67400 Illkirch, France.,Institut National de La Santé et de La Recherche Médicale (INSERM), U1258, 67400 Illkirch, France.,Centre National de Recherche Scientifique (CNRS), UMR7104, 67400 Illkirch, France.,Université de Strasbourg, 67400 Illkirch, France
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8
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Augimeri G, Plastina P, Gionfriddo G, Rovito D, Giordano C, Fazio A, Barone I, Catalano S, Andò S, Bonofiglio D, Meijerink J, Witkamp R. N-Eicosapentaenoyl Dopamine, A Conjugate of Dopamine and Eicosapentaenoic Acid (EPA), Exerts Anti-inflammatory Properties in Mouse and Human Macrophages. Nutrients 2019; 11:nu11092247. [PMID: 31540502 PMCID: PMC6769480 DOI: 10.3390/nu11092247] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 09/04/2019] [Accepted: 09/16/2019] [Indexed: 12/28/2022] Open
Abstract
A large body of evidence suggests that dietary n-3 polyunsaturated fatty acids (PUFAs), including eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), contribute to a reduced inflammatory tone thereby lowering the risk for several chronic and degenerative diseases. Different mechanisms have been proposed to explain these anti-inflammatory effects, including those involving endocannabinoids and endocannabinoid-like molecules. In this context, fatty acid amides (FAAs), conjugates of fatty acids with amines or amino acids, are an emerging class of compounds. Dopamine conjugates of DHA (N-docosahexaenoyl dopamine, DHDA) and EPA (N-eicosapentaenoyl dopamine, EPDA) have previously been shown to induce autophagy, apoptosis, and cell death in different tumor lines. Additionally, DHDA has displayed anti-inflammatory properties in vitro. Here, we tested the immune-modulatory properties of EPDA in mouse RAW 264.7 and human THP-1 macrophages stimulated with lipopolysaccharide (LPS). EPDA suppressed the production of monocyte chemoattractant protein-1 (MCP-1), and interleukin-6 (IL-6) in both cell lines, and nitric oxide (NO), and macrophage-inflammatory protein-3α (MIP3A) in RAW 264.7 macrophages. At a transcriptional level, EPDA attenuated cyclooxygenase-2 (COX-2) expression in both cell lines and that of MCP-1, IL-6, and interleukin-1β (IL-1β) in THP-1 macrophages. Although further research is needed to reveal whether EPDA is an endogenous metabolite, our data suggest that this EPA-derived conjugate possesses interesting immune-modulating properties.
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Affiliation(s)
- Giuseppina Augimeri
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende (CS), Italy; (G.A.); (G.G.); (D.R.); (C.G.); (A.F.); (I.B.); (S.C.); (S.A.)
| | - Pierluigi Plastina
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende (CS), Italy; (G.A.); (G.G.); (D.R.); (C.G.); (A.F.); (I.B.); (S.C.); (S.A.)
| | - Giulia Gionfriddo
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende (CS), Italy; (G.A.); (G.G.); (D.R.); (C.G.); (A.F.); (I.B.); (S.C.); (S.A.)
| | - Daniela Rovito
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende (CS), Italy; (G.A.); (G.G.); (D.R.); (C.G.); (A.F.); (I.B.); (S.C.); (S.A.)
| | - Cinzia Giordano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende (CS), Italy; (G.A.); (G.G.); (D.R.); (C.G.); (A.F.); (I.B.); (S.C.); (S.A.)
| | - Alessia Fazio
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende (CS), Italy; (G.A.); (G.G.); (D.R.); (C.G.); (A.F.); (I.B.); (S.C.); (S.A.)
| | - Ines Barone
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende (CS), Italy; (G.A.); (G.G.); (D.R.); (C.G.); (A.F.); (I.B.); (S.C.); (S.A.)
| | - Stefania Catalano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende (CS), Italy; (G.A.); (G.G.); (D.R.); (C.G.); (A.F.); (I.B.); (S.C.); (S.A.)
| | - Sebastiano Andò
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende (CS), Italy; (G.A.); (G.G.); (D.R.); (C.G.); (A.F.); (I.B.); (S.C.); (S.A.)
| | - Daniela Bonofiglio
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende (CS), Italy; (G.A.); (G.G.); (D.R.); (C.G.); (A.F.); (I.B.); (S.C.); (S.A.)
- Correspondence: (D.B.); (R.W.); Tel.: +39-0984-496208 (D.B.); +31-0317-485136 (R.W.)
| | - Jocelijn Meijerink
- Division of Human Nutrition and Health, Wageningen University, 6700 AA Wageningen, The Netherlands;
| | - Renger Witkamp
- Division of Human Nutrition and Health, Wageningen University, 6700 AA Wageningen, The Netherlands;
- Correspondence: (D.B.); (R.W.); Tel.: +39-0984-496208 (D.B.); +31-0317-485136 (R.W.)
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9
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Rovito D, Gionfriddo G, Barone I, Giordano C, Grande F, De Amicis F, Lanzino M, Catalano S, Andò S, Bonofiglio D. Ligand-activated PPARγ downregulates CXCR4 gene expression through a novel identified PPAR response element and inhibits breast cancer progression. Oncotarget 2018; 7:65109-65124. [PMID: 27556298 PMCID: PMC5323141 DOI: 10.18632/oncotarget.11371] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 08/11/2016] [Indexed: 12/26/2022] Open
Abstract
Stromal Derived Factor-1α (SDF-1α) and its cognate receptor CXCR4 play a key role in mediating breast cancer cell invasion and metastasis. Therefore, drugs able to inhibit CXCR4 activation may add critical tools to reduce tumor progression, especially in the most aggressive form of the breast cancer disease. Peroxisome Proliferator-Activated Receptor (PPAR) γ, a member of the nuclear receptor superfamily, has been found to downregulate CXCR4 gene expression in different cancer cells, however the molecular mechanism underlying this effect is not fully understood. Here, we identified a novel PPARγ-mediated mechanism that negatively regulates CXCR4 expression in both epithelial and stromal breast cancer cells. We found that ligand-activated PPARγ downregulated CXCR4 transcriptional activity through the recruitment of the silencing mediator of retinoid and thyroid hormone receptor (SMRT) corepressor onto a newly identified PPAR response element (PPRE) within the CXCR4 promoter in breast cancer cell lines. As a consequence, the PPARγ agonist rosiglitazone (BRL) significantly inhibited cell migration and invasion and this effect was PPARγ-mediated, since it was reversed in the presence of the PPARγ antagonist GW9662. According to the ability of cancer-associated fibroblasts (CAFs), the most abundant component of breast cancer stroma, to secrete high levels of SDF-1α, BRL reduced migratory promoting activities induced by conditioned media (CM) derived from CAFs and affected CXCR4 downstream signaling pathways activated by CAF-CM. In addition, CAFs exposed to BRL showed a decreased expression of CXCR4, a reduced motility and invasion along with a phenotype characterized by an altered morphology. Collectively, our findings provide novel insights into the role of PPARγ in inhibiting breast cancer progression and further highlight the utility of PPARγ ligands for future therapies aimed at targeting both cancer and surrounding stromal cells in breast cancer patients.
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Affiliation(s)
- Daniela Rovito
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende (CS), Italy.,Centro Sanitario, University of Calabria, Rende (CS), Italy
| | - Giulia Gionfriddo
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende (CS), Italy
| | - Ines Barone
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende (CS), Italy
| | | | - Fedora Grande
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende (CS), Italy
| | - Francesca De Amicis
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende (CS), Italy
| | - Marilena Lanzino
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende (CS), Italy
| | - Stefania Catalano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende (CS), Italy
| | - Sebastiano Andò
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende (CS), Italy.,Centro Sanitario, University of Calabria, Rende (CS), Italy
| | - Daniela Bonofiglio
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende (CS), Italy
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10
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Giordano C, Rovito D, Barone I, Mancuso R, Bonofiglio D, Giordano F, Catalano S, Gabriele B, Andò S. Benzofuran-2-acetic ester derivatives induce apoptosis in breast cancer cells by upregulating p21 Cip/WAF1 gene expression in p53-independent manner. DNA Repair (Amst) 2017; 51:20-30. [PMID: 28108275 DOI: 10.1016/j.dnarep.2017.01.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 01/04/2017] [Accepted: 01/11/2017] [Indexed: 01/13/2023]
Abstract
Breast cancer is the most common malignancy and the leading cause of cancer-related death in women worldwide. High toxicity of used chemotherapeutics and resistance of cancer cells to treatments are a driving force for searching the new drug candidates for breast cancer therapy. In this study, we tested the antiproliferative effects of a series of benzofuran-2-acetic methyl ester derivatives, synthesized by a palladium-catalyzed carbonylative heterocyclization approach, on breast cancer cells. We observed that benzofuran compounds bearing a phenyl or tert-butyl substituent α to the methoxycarbonyl group significantly inhibited anchorage-dependent and -independent cell growth, and induced G0/G1 cell cycle arrest in human estrogen receptor alpha positive (MCF-7 and T47D) and in triple negative MDA-MB-231 breast cancer cells, without affecting growth of MCF-10A normal breast epithelial cells. Mechanistically, benzofuran derivatives enhanced the cyclin-dependent kinase inhibitor p21Cip/WAF1 expression at both mRNA and protein levels and this occurs transcriptionally in an Sp1-dependent manner. Moreover, benzofuran derivatives induced apoptosis, increased poly (ADP-ribose) polymerase cleavage and Bax/Bcl-2 ratio along with a marked DNA fragmentation along with a marked DNA fragmentation and a strong increase in TUNEL-positive breast cancer cells. Overall, we provide evidence that the newly tested benzofuran derivatives showed antiproliferative and pro-apoptotic activities against breast cancer cells regardless estrogen receptor status, suggesting their possible clinical development as anticancer agents.
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Affiliation(s)
- Cinzia Giordano
- Centro Sanitario,University of Calabria, Arcavacata di Rende, CS, Italy
| | - Daniela Rovito
- Centro Sanitario,University of Calabria, Arcavacata di Rende, CS, Italy
| | - Ines Barone
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende, CS, Italy
| | - Raffaella Mancuso
- Laboratory of Industrial and Synthetic Organic Chemistry (LISOC), Department of Chemistry and Chemical Technologies, University of Calabria, Arcavacata di Rende, CS, Italy
| | - Daniela Bonofiglio
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende, CS, Italy
| | - Francesca Giordano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende, CS, Italy
| | - Stefania Catalano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende, CS, Italy.
| | - Bartolo Gabriele
- Laboratory of Industrial and Synthetic Organic Chemistry (LISOC), Department of Chemistry and Chemical Technologies, University of Calabria, Arcavacata di Rende, CS, Italy
| | - Sebastiano Andò
- Centro Sanitario,University of Calabria, Arcavacata di Rende, CS, Italy; Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende, CS, Italy.
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11
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Rovito D, Giordano C, Plastina P, Barone I, De Amicis F, Mauro L, Rizza P, Lanzino M, Catalano S, Bonofiglio D, Andò S. Omega-3 DHA- and EPA-dopamine conjugates induce PPARγ-dependent breast cancer cell death through autophagy and apoptosis. Biochim Biophys Acta Gen Subj 2015; 1850:2185-95. [PMID: 26272430 DOI: 10.1016/j.bbagen.2015.08.004] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 07/30/2015] [Accepted: 08/09/2015] [Indexed: 01/13/2023]
Abstract
BACKGROUND The omega-3 docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) may form conjugates with amines that have potential health benefits against common diseases including cancers. Here we synthesized DHA-dopamine (DHADA) and EPA-dopamine (EPADA) conjugates and studied their biological effects on different breast cancer cell lines. METHODS AND RESULTS MTT assays indicated that increasing concentrations of DHADA and EPADA significantly affected viability in MCF-7, SKBR3 and MDA-MB-231 breast cancer cells, whereas no effect was observed in MCF-10A non-tumorigenic epithelial breast cells. DHADA and EPADA enhanced Beclin-1 expression, as evidenced by immunoblotting, real-time-PCR and functional analyses. Chromatin Immunoprecipitation (ChIP) and Re-ChIP assays revealed that both compounds induced recruitment of Peroxisome-Proliferator-Activated-Receptor gamma (PPARγ) and RNA Polymerase-II at the Retinoic-X-Receptor binding region on Beclin-1 promoter. Moreover, both compounds enhanced autophagosome formation, evaluated by LC-3 and monodansylcadaverine labeling, that was prevented by the PPARγ antagonist GW9662, addressing the direct involvement of PPARγ. Noteworthy, long-term treatment with DHADA and EPADA caused the blockade of autophagic flux followed by apoptotic cell death as evidenced by PARP cleavage and DNA fragmentation in all breast cancer cells. CONCLUSIONS We have provided new insights into the molecular mechanism through which PPARγ, as a central molecule in the cross talk between autophagy and apoptosis, mediates DHADA- and EPADA-induced cell death in breast cancer cells. GENERAL SIGNIFICANCE Our findings suggest that omega-3 DHADA- and EPADA activation of PPARγ may assume biological relevance in setting novel adjuvant therapeutic interventions in breast carcinoma.
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Affiliation(s)
- Daniela Rovito
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende (CS), Italy
| | - Cinzia Giordano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende (CS), Italy
| | - Pierluigi Plastina
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende (CS), Italy
| | - Ines Barone
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende (CS), Italy; Centro Sanitario, University of Calabria, Arcavacata di Rende (CS), Italy
| | - Francesca De Amicis
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende (CS), Italy; Centro Sanitario, University of Calabria, Arcavacata di Rende (CS), Italy
| | - Loredana Mauro
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende (CS), Italy
| | - Pietro Rizza
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende (CS), Italy
| | - Marilena Lanzino
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende (CS), Italy; Centro Sanitario, University of Calabria, Arcavacata di Rende (CS), Italy
| | - Stefania Catalano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende (CS), Italy; Centro Sanitario, University of Calabria, Arcavacata di Rende (CS), Italy
| | - Daniela Bonofiglio
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende (CS), Italy; Centro Sanitario, University of Calabria, Arcavacata di Rende (CS), Italy.
| | - Sebastiano Andò
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende (CS), Italy; Centro Sanitario, University of Calabria, Arcavacata di Rende (CS), Italy.
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12
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Rechoum Y, Rovito D, Iacopetta D, Barone I, Andò S, Weigel NL, O'Malley BW, Brown PH, Fuqua SAW. AR collaborates with ERα in aromatase inhibitor-resistant breast cancer. Breast Cancer Res Treat 2014; 147:473-85. [PMID: 25178514 DOI: 10.1007/s10549-014-3082-8] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Accepted: 07/25/2014] [Indexed: 12/31/2022]
Abstract
Androgen receptor (AR) is an attractive target in breast cancer because of its frequent expression in all the molecular subtypes, especially in estrogen receptor (ER)-positive luminal breast cancers. We have previously shown a role for AR overexpression in tamoxifen resistance. We engineered ER-positive MCF-7 cells to overexpress aromatase and AR (MCF-7 AR Arom cells) to explore the role of AR in aromatase inhibitor (AI) resistance. Androstendione (AD) was used as a substrate for aromatization to estrogen. The nonsteroidal AI anastrazole (Ana) inhibited AD-stimulated growth and ER transcriptional activity in MCF-7 Arom cells, but not in MCF-7 AR Arom cells. Enhanced activation of pIGF-1R and pAKT was found in AR-overexpressing cells, and their inhibitors restored sensitivity to Ana, suggesting that these pathways represent escape survival mechanisms. Sensitivity to Ana was restored with AR antagonists, or the antiestrogen fulvestrant. These results suggest that both AR and ERα must be blocked to restore sensitivity to hormonal therapies in AR-overexpressing ERα-positive breast cancers. AR contributed to ERα transcriptional activity in MCF-7 AR Arom cells, and AR and ERα co-localized in AD + Ana-treated cells, suggesting cooperation between the two receptors. AR-mediated resistance was associated with a failure to block ER transcriptional activity and enhanced up-regulation of AR and ER-responsive gene expression. Clinically, it may be necessary to block both AR and ERα in patients whose tumors express elevated levels of AR. In addition, inhibitors to the AKT/IGF-1R signaling pathways may provide alternative approaches to block escape pathways and restore hormone sensitivity in resistant breast tumors.
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Affiliation(s)
- Yassine Rechoum
- Lester and Sue Smith Breast Center, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA
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13
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Perri A, Catalano S, Bonofiglio D, Vizza D, Rovito D, Qi H, Aquila S, Panza S, Rizza P, Lanzino M, Andò S. T3 enhances thyroid cancer cell proliferation through TRβ1/Oct-1-mediated cyclin D1 activation. Mol Cell Endocrinol 2014; 382:205-217. [PMID: 24121026 DOI: 10.1016/j.mce.2013.10.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2013] [Revised: 09/30/2013] [Accepted: 10/01/2013] [Indexed: 10/26/2022]
Abstract
Several studies have demonstrated that thyroid hormone T3 promotes cancer cell growth, even though the molecular mechanism involved in such processes still needs to be elucidated. In this study we demonstrated that T3 induced proliferation in papillary thyroid carcinoma cell lines concomitantly with an up-regulation of cyclin D1 expression, that is a critical mitogen-regulated cell-cycle control element. Our data revealed that T3 enhanced the recruitment of the TRβ1/Oct-1 complex on Octamer-transcription factor-1 site within cyclin D1 promoter, leading to its transactivation. In addition, silencing of TRβ1 or Oct-1 expression by RNA interference reversed both increased cell proliferation and up-regulation of cyclin D1, underlying the important role of both transcriptional factors in mediating these effects. Finally, T3-induced increase in cell growth was abrogated after knocking down cyclin D1 expression. All these findings highlight a new molecular mechanism by which T3 promotes thyroid cancer cell growth.
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Affiliation(s)
- Anna Perri
- Centro Sanitario, University of Calabria, Rende, Italy
| | - Stefania Catalano
- Dept. Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy
| | - Daniela Bonofiglio
- Dept. Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy
| | | | - Daniela Rovito
- Dept. Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy
| | - Hongyan Qi
- Centro Sanitario, University of Calabria, Rende, Italy
| | - Saveria Aquila
- Dept. Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy
| | - Salvatore Panza
- Dept. Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy
| | - Pietro Rizza
- Dept. Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy
| | - Marilena Lanzino
- Dept. Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy
| | - Sebastiano Andò
- Dept. Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy; Centro Sanitario, University of Calabria, Rende, Italy.
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Rechoum Y, Iacopetta D, Barone I, Rovito D, Ando' S, Weigel N, Fuqua SAW. Collaboration of AR and ERα in conferring resistance to an aromatase inhibitor. J Clin Oncol 2013. [DOI: 10.1200/jco.2013.31.15_suppl.579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
579 Background: We have previously shown a role for AR overexpression in tamoxifen resistance in ERα-positive MCF-7 breast cancer cells; here we hypothesized that AR overexpression might similarly be involved in resistance to the aromatase inhibitor anastrazole (Anas). Methods: MCF-7 cells were transfected to express the aromatase gene (MCF-7 Arom), or the aromatase and AR (MCF-7 AR Arom cells). Western blot analysis was used to evaluate protein levels, MTT and soft agar assays to evaluate proliferation, luciferase reporter assays to evaluate transcriptional activities and confocal microscopy was used for localization. Results: Anas inhibited androstendione (AD)-stimulated growth in MCF-7 Arom cells but not in MCF-7 AR Arom cells. Similarly, Anas did not inhibit ERα transcriptional activity in MCF-7 AR Arom cells. Enhanced activation of pIGF-1R, pIRS-1, pAKT, and pMAPK were also observed in AR Arom cells, suggesting constitutive activation of nongenomic signaling in these cells. Consistent with activation of these potential treatment “escape” mechanisms, inhibitors of AKT and IGF-1R restored sensitivity to Anas. Sensitivity to Anas was also restored using the AR antagonist MDV3100, however use of Abiraterone acetate as a single agent most effectively blocked proliferation of AR-overexpressing cells. These results suggest that both AR and ERα must be blocked to restore sensitivity to hormonal therapies in AR overexpressing ERα-positive breast cancers. Unexpectedly, AR contributed to ERα transcriptional activity in MCF-7 AR Arom cells, as shown by inhibition with the AR antagonist bicalutamide. AR and ERα co-localized both in the cytoplasm and in the nucleus of AD+Anas-treated cells, suggesting potential activation of both non-genomic and nuclear-mediated effects when AR is overexpressed in ERα-positive cells. We confirmed these findings in breast cancer cells with acquired resistance to tamoxifen. Conclusions: These results show the necessity to block both AR and ER in patients whose tumors express elevated levels of AR. In addition, inhibitors to the AKT/IGF-1R signaling pathways or direct inhibition of androgen/estrogen synthesis provide alternative approaches to restore hormone sensitivity in resistant breast tumors.
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Affiliation(s)
| | | | - Ines Barone
- University of Calabria, Department of Pharmaco-Biology, Rende, Italy
| | | | - Sebastiano Ando'
- University of Calabria, Department of Pharmaco-Biology, Rende, Italy
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Rovito D, Giordano C, Vizza D, Plastina P, Barone I, Casaburi I, Lanzino M, De Amicis F, Sisci D, Mauro L, Aquila S, Catalano S, Bonofiglio D, Andò S. Omega-3 PUFA ethanolamides DHEA and EPEA induce autophagy through PPARγ activation in MCF-7 breast cancer cells. J Cell Physiol 2013; 228:1314-22. [DOI: 10.1002/jcp.24288] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Accepted: 11/08/2012] [Indexed: 11/09/2022]
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Bonofiglio D, Santoro A, Martello E, Vizza D, Rovito D, Cappello AR, Barone I, Giordano C, Panza S, Catalano S, Iacobazzi V, Dolce V, Andò S. Mechanisms of divergent effects of activated peroxisome proliferator-activated receptor-γ on mitochondrial citrate carrier expression in 3T3-L1 fibroblasts and mature adipocytes. Biochim Biophys Acta Mol Cell Biol Lipids 2013; 1831:1027-36. [PMID: 23370576 DOI: 10.1016/j.bbalip.2013.01.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 01/16/2013] [Accepted: 01/18/2013] [Indexed: 12/14/2022]
Abstract
The citrate carrier (CIC), a nuclear-encoded protein located in the mitochondrial inner membrane, plays an important metabolic role in the transport of acetyl-CoA from the mitochondrion to the cytosol in the form of citrate for fatty acid and cholesterol synthesis. Citrate has been reported to be essential for fibroblast differentiation into fat cells. Because peroxisome proliferator-activated receptor-gamma (PPARγ) is known to be one of the master regulators of adipogenesis, we aimed to study the regulation of CIC by the PPARγ ligand rosiglitazone (BRL) in 3T3-L1 fibroblasts and in adipocytes. We demonstrated that BRL up-regulated CIC mRNA and protein levels in fibroblasts, while it did not elicit any effects in mature adipocytes. The enhancement of CIC levels upon BRL treatment was reversed using the PPARγ antagonist GW9662, addressing how this effect was mediated by PPARγ. Functional experiments using a reporter gene containing rat CIC promoter showed that BRL enhanced CIC promoter activity. Mutagenesis studies, electrophoretic-mobility-shift assay and chromatin-immunoprecipitation analysis revealed that upon BRL treatment, PPARγ and Sp1 are recruited on the Sp1-containing region within the CIC promoter, leading to an increase in CIC expression. In addition, mithramycin, a specific inhibitor for Sp1-DNA binding activity, abolished the PPARγ-mediated up-regulation of CIC in fibroblasts. The stimulatory effects of BRL disappeared in mature adipocytes in which PPARγ/Sp1 complex recruited SMRT corepressor to the Sp1 site of the CIC promoter. Taken together, our results contribute to clarify the molecular mechanisms by which PPARγ regulates CIC expression during the differentiation stages of fibroblasts into mature adipocytes.
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Affiliation(s)
- Daniela Bonofiglio
- Dept. Pharmacy, Health Sciences and Nutritional, University of Calabria, Cosenza, Italy
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Giordano C, Vizza D, Rovito D, Barone I, Bonofiglio D, Panza S, Lanzino M, Fuqua S, Catalano S, Andò S. Leptin Increases HER2 Stability through HSP90 in Breast Cancer Cells. FASEB J 2012. [DOI: 10.1096/fasebj.26.1_supplement.834.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Cinzia Giordano
- Centro SanitarioUniversity of CalabriaArcavacata di RendeItaly
| | - Donatella Vizza
- Department of Pharmaco-BiologyUniversity of CalabriaArcavacata di RendeItaly
| | - Daniela Rovito
- Department of Pharmaco-BiologyUniversity of CalabriaArcavacata di RendeItaly
| | - Ines Barone
- Department of Cellular BiologyUniversity of CalabriaArcavacata di RendeItaly
| | - Daniela Bonofiglio
- Department of Pharmaco-BiologyUniversity of CalabriaArcavacata di RendeItaly
| | - Salvatore Panza
- Department of Pharmaco-BiologyUniversity of CalabriaArcavacata di RendeItaly
| | - Marilena Lanzino
- Department of Pharmaco-BiologyUniversity of CalabriaArcavacata di RendeItaly
| | - Suzanne Fuqua
- Lester and Sue Smith Breast CenterBaylor College of MedicineHoustonTX
| | - Stefania Catalano
- Department of Pharmaco-BiologyUniversity of CalabriaArcavacata di RendeItaly
| | - Sebastiano Andò
- Department of Cellular BiologyUniversity of CalabriaArcavacata di RendeItaly
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Bonofiglio D, Santoro A, Vizza D, Rovito D, Martello E, Cappello AR, Barone I, Giordano C, Catalano S, Dolce V, Andò S. Modulatory role of Peroxisome Proliferator‐Activated Receptor γ on Citrate Carrier activity and expression. FASEB J 2012. [DOI: 10.1096/fasebj.26.1_supplement.1034.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | | | | | | | - Ines Barone
- Cellular-BiologyUniversity of CalabriaCosenzaItaly
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Plastina P, Bonofiglio D, Vizza D, Fazio A, Rovito D, Giordano C, Barone I, Catalano S, Gabriele B. Identification of bioactive constituents of Ziziphus jujube fruit extracts exerting antiproliferative and apoptotic effects in human breast cancer cells. J Ethnopharmacol 2012; 140:325-32. [PMID: 22301448 DOI: 10.1016/j.jep.2012.01.022] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Revised: 01/03/2012] [Accepted: 01/13/2012] [Indexed: 05/22/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ziziphus extracts have been used in Traditional Chinese Medicine for the treatment of cancer. AIM OF THE STUDY In the present study we have investigated the effects of Ziziphus jujube extracts (ZEs) on breast cancer. MATERIALS AND METHODS We evaluated the effects of increasing concentrations of ZEs on ERα positive MCF-7 and ERα negative SKBR3 breast cancer cell proliferation using MTT assays. Apoptosis was analyzed by evaluating the involvement of some pro-apoptotic proteins, including Bax, Bad, Bid and PARP cleavage by immunoblotting analysis. Moreover, the effects of ZEs treatment on apoptosis were tested by both DNA fragmentation and terminal deoxynucleotidyl transferase dUTP nick end-labeling (TUNEL) staining. By using chromatographic techniques, we identified the constituents of the effective extracts. RESULTS ZE1, ZE2, and ZE4 exerted significant antiproliferative effects on estrogen receptor alpha (ERα) positive MCF-7 (IC(50) values of 14.42, 7.64, 1.69μg/mL) and ERα negative SKBR3 (IC(50) values of 14.06, 6.21, 3.70μg/mL) human breast cancer cells. Remarkably, ZEs did not affect cell viability of both normal human fibroblasts BJ1-hTERT and nonmalignant breast epithelial MCF-10A cells. Treatment with ZEs induced cell death by apoptosis in both malignant breast cells. We found that the most effective extracts ZE2 and ZE4 shared a number of triterpenic acids, already known for their anticancer activities. CONCLUSIONS Our data provide a rational base for the use of Ziziphus extracts in the treatment of breast cancer in Traditional Chinese Medicine.
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Affiliation(s)
- Pierluigi Plastina
- Department of Pharmaceutical Sciences, University of Calabria, 87036 Arcavacata di Rende, Cosenza, Italy.
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Bonofiglio D, Cione E, Vizza D, Perri M, Pingitore A, Qi H, Catalano S, Rovito D, Genchi G, Andò S. Bid as a potential target of apoptotic effects exerted by low doses of PPARγ and RXR ligands in breast cancer cells. Cell Cycle 2011; 10:2344-54. [PMID: 21654191 DOI: 10.4161/cc.10.14.15917] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The combined treatment with nanomolar doses of the PPARγ ligand Rosiglitazone (BRL) and the RXR ligand 9-cis‑retinoic acid (9RA) induces a p53-dependent apoptosis in MCF7, SKBR3 and T47D human breast cancer cells. Since MCF7 cells express a wild-type p53 protein, while SKBR3 and T47D cells harbor endogenous mutant p53, we elucidated the mechanism through which PPARγ and RXR ligands triggered apoptotic processes independently of p53 transcriptional activity. We showed an upregulation of Bid expression enhancing the association between Bid/p53 in both cytosol and mitochondria after the ligand treatment. Particularly in the mitochondria, the complex involves the truncated Bid that plays a key role in the apoptotic process induced by BRL and 9RA, since the disruption of mitochondrial membrane potential, the induction of PARP cleavage and the percentage of TUNEL-positive cells were reversed after knocking down Bid. Moreover, PPARγ and RXR ligands were able to reduce mitochondrial GST activity, which was no longer noticeable silencing Bid expression, suggesting the potential of Bid in the regulation of mitochondrial intracellular reactive oxygen species scavenger activity. Our data, providing new insight into the role of p53/Bid complex at the mitochondria in promoting breast cancer cell apoptosis upon low doses of PPARγ and RXR ligands, address Bid as a potential target in the novel therapeutical strategies for breast cancer.
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Affiliation(s)
- Daniela Bonofiglio
- Department of Pharmaco-Biology, Centro Sanitario, Faculty of Pharmacy Nutritional and Health Sciences, University of Calabria, Arcavacata di Rende, Cosenza, Italy
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el-Lithy ME, Bentsink L, Hanhart CJ, Ruys GJ, Rovito D, Broekhof JLM, van der Poel HJA, van Eijk MJT, Vreugdenhil D, Koornneef M. New Arabidopsis recombinant inbred line populations genotyped using SNPWave and their use for mapping flowering-time quantitative trait loci. Genetics 2006; 172:1867-76. [PMID: 16361234 PMCID: PMC1456291 DOI: 10.1534/genetics.105.050617] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2005] [Accepted: 11/29/2005] [Indexed: 11/18/2022] Open
Abstract
The SNPWave marker system, based on SNPs between the reference accessions Colombia-0 and Landsberg erecta (Ler), was used to distinguish a set of 92 Arabidopsis accessions from various parts of the world. In addition, we used these markers to genotype three new recombinant inbred line populations for Arabidopsis, having Ler as a common parent that was crossed with the accessions Antwerp-1, Kashmir-2, and Kondara. The benefit of using multiple populations that contain many similar markers and the fact that all markers are linked to the physical map of Arabidopsis facilitates the quantitative comparison of maps. Flowering-time variation was analyzed in the three recombinant inbred line populations. Per population, four to eight quantitative trait loci (QTL) were detected. The comparison of the QTL positions related to the physical map allowed the estimate of 12 different QTL segregating for flowering time for which Ler has an allele different from one, two, or three of the other accessions.
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