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Pterostilbene Promotes Mean Lifespan in Both Male and Female Drosophila Melanogaster Modulating Different Proteins in the Two Sexes. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:1744408. [PMID: 35222791 PMCID: PMC8865974 DOI: 10.1155/2022/1744408] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 02/02/2022] [Accepted: 02/03/2022] [Indexed: 11/17/2022]
Abstract
Aging is a multifactorial phenomenon characterized by degenerative processes closely connected to oxidative damage and chronic inflammation. Recently, many studies have shown that natural bioactive compounds are useful in delaying the aging process. In this work, we studied the effects of an in vivo supplementation of the stilbenoid pterostilbene on lifespan extension in Drosophila melanogaster. We found that the average lifespan of flies of both sexes was increased by pterostilbene supplementation with a higher effect in females. The expression of longevity related genes (Sir2, Foxo, and Notch) was increased in both sexes but with different patterns. Pterostilbene counteracted oxidative stress induced by ethanol and paraquat and up-regulated the antioxidant enzymes Ho e Trxr-1 in male but not in female flies. On the other hand, pterostilbene decreased the inflammatory mediators dome and egr only in female flies. Proteomic analysis revealed that pterostilbene modulates 113 proteins in male flies and only 9 in females. Only one of these proteins was modulated by pterostilbene in both sexes: vacuolar H[+] ATPase 68 kDa subunit 2 (Vha68-2) that was strongly down-regulated. These findings suggest a potential role of pterostilbene in increasing lifespan both in male and female flies by mechanisms that seem to be different in the two sexes, highlighting the need to conduct nutraceutical supplementation studies on males and females separately in order to give more reliable results.
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2
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Protective effect of Vigna unguiculata extract against aging and neurodegeneration. Aging (Albany NY) 2020; 12:19785-19808. [PMID: 33024055 PMCID: PMC7732273 DOI: 10.18632/aging.104069] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 08/14/2020] [Indexed: 02/07/2023]
Abstract
Aging and age-related neurodegeneration are among the major challenges in modern medicine because of the progressive increase in the number of elderly in the world population. Nutrition, which has important long-term consequences for health, is an important way to prevent diseases and achieve healthy aging. The beneficial effects of Vigna unguiculata on metabolic disorders have been widely documented. Here, we show that an aqueous extract of V. unguiculata beans delays senescence both in Saccharomyces cerevisiae and Drosophila melanogaster, in a Snf1/AMPK-dependent manner. Consistently, an increased expression of FOXO, SIRT1, NOTCH and heme oxygenase (HO) genes, already known to be required for the longevity extension in D. melanogaster, is also shown. Preventing α-synuclein self-assembly is one of the most promising approaches for the treatment of Parkinson's disease (PD), for which aging is a risk factor. In vitro aggregation of α-synuclein, its toxicity and membrane localization in yeast and neuroblastoma cells are strongly decreased in the presence of bean extract. In a Caenorhabditis elegans model of PD, V. unguiculata extract substantially reduces the number of the age-dependent degeneration of the cephalic dopaminergic neurons. Our findings support the role of V. unguiculata beans as a functional food in age-related disorders.
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3
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Nagel AC, Maier D, Scharpf J, Ketelhut M, Preiss A. Limited Availability of General Co-Repressors Uncovered in an Overexpression Context during Wing Venation in Drosophila melanogaster. Genes (Basel) 2020; 11:genes11101141. [PMID: 32998295 PMCID: PMC7601384 DOI: 10.3390/genes11101141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/17/2020] [Accepted: 09/25/2020] [Indexed: 12/31/2022] Open
Abstract
Cell fate is determined by the coordinated activity of different pathways, including the conserved Notch pathway. Activation of Notch results in the transcription of Notch targets that are otherwise silenced by repressor complexes. In Drosophila, the repressor complex comprises the transcription factor Suppressor of Hairless (Su(H)) bound to the Notch antagonist Hairless (H) and the general co-repressors Groucho (Gro) and C-terminal binding protein (CtBP). The latter two are shared by different repressors from numerous pathways, raising the possibility that they are rate-limiting. We noted that the overexpression during wing development of H mutants HdNT and HLD compromised in Su(H)-binding induced ectopic veins. On the basis of the role of H as Notch antagonist, overexpression of Su(H)-binding defective H isoforms should be without consequence, implying different mechanisms but repression of Notch signaling activity. Perhaps excess H protein curbs general co-repressor availability. Supporting this model, nearly normal wings developed upon overexpression of H mutant isoforms that bound neither Su(H) nor co-repressor Gro and CtBP. Excessive H protein appeared to sequester general co-repressors, resulting in specific vein defects, indicating their limited availability during wing vein development. In conclusion, interpretation of overexpression phenotypes requires careful consideration of possible dominant negative effects from interception of limiting factors.
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Ferrante F, Giaimo BD, Bartkuhn M, Zimmermann T, Close V, Mertens D, Nist A, Stiewe T, Meier-Soelch J, Kracht M, Just S, Klöble P, Oswald F, Borggrefe T. HDAC3 functions as a positive regulator in Notch signal transduction. Nucleic Acids Res 2020; 48:3496-3512. [PMID: 32107550 PMCID: PMC7144913 DOI: 10.1093/nar/gkaa088] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 01/29/2020] [Accepted: 02/03/2020] [Indexed: 12/26/2022] Open
Abstract
Aberrant Notch signaling plays a pivotal role in T-cell acute lymphoblastic leukemia (T-ALL) and chronic lymphocytic leukemia (CLL). Amplitude and duration of the Notch response is controlled by ubiquitin-dependent proteasomal degradation of the Notch1 intracellular domain (NICD1), a hallmark of the leukemogenic process. Here, we show that HDAC3 controls NICD1 acetylation levels directly affecting NICD1 protein stability. Either genetic loss-of-function of HDAC3 or nanomolar concentrations of HDAC inhibitor apicidin lead to downregulation of Notch target genes accompanied by a local reduction of histone acetylation. Importantly, an HDAC3-insensitive NICD1 mutant is more stable but biologically less active. Collectively, these data show a new HDAC3- and acetylation-dependent mechanism that may be exploited to treat Notch1-dependent leukemias.
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Affiliation(s)
- Francesca Ferrante
- Institute of Biochemistry, University of Giessen, Friedrichstrasse 24, 35392 Giessen, Germany
| | | | - Marek Bartkuhn
- Institute for Genetics, University of Giessen, Heinrich-Buff-Ring 58-62, 35392 Giessen, Germany
| | - Tobias Zimmermann
- Bioinformatics and Systems Biology, University of Giessen, Heinrich-Buff-Ring 58-62, 35392 Giessen, Germany
| | - Viola Close
- University Medical Center Ulm, Center for Internal Medicine, Department of Internal Medicine III, Albert-Einstein-Allee 23, 89081 Ulm, Germany.,Cooperation Unit "Mechanisms of Leukemogenesis'' (B061), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg Germany
| | - Daniel Mertens
- University Medical Center Ulm, Center for Internal Medicine, Department of Internal Medicine III, Albert-Einstein-Allee 23, 89081 Ulm, Germany.,Cooperation Unit "Mechanisms of Leukemogenesis'' (B061), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg Germany
| | - Andrea Nist
- Genomics Core Facility, Institute of Molecular Oncology, Philipps-University, Hans-Meerwein-Str. 3, 35043 Marburg, Germany
| | - Thorsten Stiewe
- Genomics Core Facility, Institute of Molecular Oncology, Philipps-University, Hans-Meerwein-Str. 3, 35043 Marburg, Germany
| | - Johanna Meier-Soelch
- Rudolf Buchheim Institute of Pharmacology, University of Giessen, Schubertstrasse 81, 35392 Giessen, Germany
| | - Michael Kracht
- Rudolf Buchheim Institute of Pharmacology, University of Giessen, Schubertstrasse 81, 35392 Giessen, Germany
| | - Steffen Just
- University Medical Center Ulm, Center for Internal Medicine, Molecular Cardiology, Department of Internal Medicine II, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Patricia Klöble
- University Medical Center Ulm, Center for Internal Medicine, Department of Internal Medicine I, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Franz Oswald
- University Medical Center Ulm, Center for Internal Medicine, Department of Internal Medicine I, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Tilman Borggrefe
- Institute of Biochemistry, University of Giessen, Friedrichstrasse 24, 35392 Giessen, Germany
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5
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Antfolk D, Antila C, Kemppainen K, Landor SKJ, Sahlgren C. Decoding the PTM-switchboard of Notch. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1866:118507. [PMID: 31301363 PMCID: PMC7116576 DOI: 10.1016/j.bbamcr.2019.07.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 07/03/2019] [Accepted: 07/06/2019] [Indexed: 01/08/2023]
Abstract
The developmentally indispensable Notch pathway exhibits a high grade of pleiotropism in its biological output. Emerging evidence supports the notion of post-translational modifications (PTMs) as a modus operandi controlling dynamic fine-tuning of Notch activity. Although, the intricacy of Notch post-translational regulation, as well as how these modifications lead to multiples of divergent Notch phenotypes is still largely unknown, numerous studies show a correlation between the site of modification and the output. These include glycosylation of the extracellular domain of Notch modulating ligand binding, and phosphorylation of the PEST domain controlling half-life of the intracellular domain of Notch. Furthermore, several reports show that multiple PTMs can act in concert, or compete for the same sites to drive opposite outputs. However, further investigation of the complex PTM crosstalk is required for a complete understanding of the PTM-mediated Notch switchboard. In this review, we aim to provide a consistent and up-to-date summary of the currently known PTMs acting on the Notch signaling pathway, their functions in different contexts, as well as explore their implications in physiology and disease. Furthermore, we give an overview of the present state of PTM research methodology, and allude to a future with PTM-targeted Notch therapeutics.
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Affiliation(s)
- Daniel Antfolk
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Turku, Finland
| | - Christian Antila
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Turku, Finland
| | - Kati Kemppainen
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Turku, Finland
| | - Sebastian K-J Landor
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Turku, Finland.
| | - Cecilia Sahlgren
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Turku, Finland; Department of Biomedical Engineering, Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, the Netherlands.
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6
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Wu J, Liang W, Tian Y, Ma F, Huang W, Jia Y, Jiang Z, Wu H. Inhibition of P53/miR-34a improves diabetic endothelial dysfunction via activation of SIRT1. J Cell Mol Med 2019; 23:3538-3548. [PMID: 30793480 PMCID: PMC6484332 DOI: 10.1111/jcmm.14253] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 01/28/2019] [Accepted: 02/06/2019] [Indexed: 12/11/2022] Open
Abstract
Endothelial dysfunction contributes to diabetic macrovascular complications, resulting in high mortality. Recent findings demonstrate a pathogenic role of P53 in endothelial dysfunction, encouraging the investigation of the effect of P53 inhibition on diabetic endothelial dysfunction. Thus, high glucose (HG)‐treated endothelial cells (ECs) were subjected to pifithrin‐α (PFT‐α)—a specific inhibitor of P53, or P53‐small interfering RNA (siRNA), both of which attenuated the HG‐induced endothelial inflammation and oxidative stress. Moreover, inhibition of P53 by PFT‐α or P53‐siRNA prohibited P53 acetylation, decreased microRNA‐34a (miR‐34a) level, leading to a dramatic increase in sirtuin 1 (SIRT1) protein level. Interestingly, the miR‐34a inhibitor (miR‐34a‐I) and PFT‐α increased SIRT1 protein level and alleviated the HG‐induced endothelial inflammation and oxidative stress to a similar extent; however, these effects of PFT‐α were completely abrogated by the miR‐34a mimic. In addition, SIRT1 inhibition by EX‐527 or Sirt1‐siRNA completely abolished miR‐34a‐I's protection against HG‐induced endothelial inflammation and oxidative stress. Furthermore, in the aortas of streptozotocin‐induced diabetic mice, both PFT‐α and miR‐34a‐I rescued the inflammation, oxidative stress and endothelial dysfunction caused by hyperglycaemia. Hence, the present study has uncovered a P53/miR‐34a/SIRT1 pathway that leads to endothelial dysfunction, suggesting that P53/miR‐34a inhibition could be a viable strategy in the management of diabetic macrovascular diseases.
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Affiliation(s)
- Junduo Wu
- Department of Cardiology, The Second Hospital of Jilin University, Changchun, Jilin, China.,Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin, Heilongjiang, China
| | - Wenzhao Liang
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China.,Occupational and Environmental Medicine Center, Linköping University, Linköping, Sweden
| | - Yueli Tian
- Department of Gastroenteric Medicine, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Fuzhe Ma
- Department of Nephrology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Wenlin Huang
- School of Science and Technology, Georgia Gwinnett College, Lawrenceville, Georgia
| | - Ye Jia
- Department of Diabetes Complications and Metabolism, Diabetes Metabolism Research Institute, Beckman Research Institute of City of Hope, Duarte, California
| | - Ziping Jiang
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Hao Wu
- Department of Toxicology and Nutrition, School of Public Health, Shandong University, Jinan, Shandong, China
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Zhang X, Miao C, Nan Z, Lyu J, Xi Y, Yang X, Ge W. A positive role of Sin3A in regulating Notch signaling during Drosophila wing development. Cell Signal 2018; 53:184-189. [PMID: 30316814 DOI: 10.1016/j.cellsig.2018.10.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 09/21/2018] [Accepted: 10/11/2018] [Indexed: 01/03/2023]
Abstract
Notch is a transmembrane receptor that mediates intercellular signaling through a conserved signaling cascade in all animal species. Transcriptional and posttranscriptional regulation of Notch receptor are important for maintaining Notch signaling activity. Here, we show that depletion of Drosophila Sin3A leads to loss of the adult wing margin and downregulation of Notch target gene expression in the developing wing disc. Sin3A regulates the Notch pathway downstream of Delta and upstream of Notch activation. The role of Sin3A in the Notch pathway is partly mediated by its ability to modulate Notch receptor transcription. Furthermore, the transcriptional activation of Notch receptor is autoregulated by Notch itself. We also provide evidence that Sin3A is required for Notch activation mediated Notch transcription. Together, our data demonstrate that Sin3A activates Notch signaling by promoting Notch transcription and reveal a previously unknown autoregulatory mechanism for Notch signaling activation during Drosophila wing development.
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Affiliation(s)
- Xiao Zhang
- Division of Human Reproduction and Developmental Genetics, The Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China; Institute of Genetics, Department of Genetics, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Chen Miao
- Division of Human Reproduction and Developmental Genetics, The Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China; Institute of Genetics, Department of Genetics, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Zi Nan
- Division of Human Reproduction and Developmental Genetics, The Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China; Institute of Genetics, Department of Genetics, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Jialan Lyu
- Division of Human Reproduction and Developmental Genetics, The Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China; Institute of Genetics, Department of Genetics, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Yongmei Xi
- Division of Human Reproduction and Developmental Genetics, The Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China; Institute of Genetics, Department of Genetics, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Xiaohang Yang
- Division of Human Reproduction and Developmental Genetics, The Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China; Institute of Genetics, Department of Genetics, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Wanzhong Ge
- Division of Human Reproduction and Developmental Genetics, The Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China; Institute of Genetics, Department of Genetics, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China.
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8
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Bai X, He T, Liu Y, Zhang J, Li X, Shi J, Wang K, Han F, Zhang W, Zhang Y, Cai W, Hu D. Acetylation-Dependent Regulation of Notch Signaling in Macrophages by SIRT1 Affects Sepsis Development. Front Immunol 2018; 9:762. [PMID: 29867921 PMCID: PMC5949384 DOI: 10.3389/fimmu.2018.00762] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Accepted: 03/27/2018] [Indexed: 12/29/2022] Open
Abstract
SIRT1 is reported to participate in macrophage differentiation and affect sepsis, and Notch signaling is widely reported to influence inflammation and macrophage activation. However, the specific mechanisms through which SIRT1 regulates sepsis and the relationship between SIRT1 and Notch signaling remain poorly elucidated. In this study, we found that SIRT1 levels were decreased in sepsis both in vitro and in vivo and that SIRT1 regulation of Notch signaling affected inflammation. In lipopolysaccharide (LPS)-induced sepsis, the levels of Notch signaling molecules, including Notch1, Notch2, Hes1, and intracellular domain of Notch (NICD), were increased. However, NICD could be deacetylated by SIRT1, and this led to the suppression of Notch signaling. Notably, in macrophages from myeloid-specific RBP-J-/- mice, in which Notch signaling is inhibited, pro-inflammatory cytokines were expressed at lower levels than in macrophages from wild-type littermates and in RBP-J-/- macrophages, and the NF-κB pathway was also inhibited. Accordingly, in the case of RBP-J-/- mice, LPS-induced inflammation and mortality were lower than in wild-type mice. Our results indicate that SIRT1 inhibits Notch signaling through NICD deacetylation and thus ultimately alleviates sepsis.
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Affiliation(s)
- Xiaozhi Bai
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Ting He
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yang Liu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Julei Zhang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Xiaoqiang Li
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Jihong Shi
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Kejia Wang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Fu Han
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Wei Zhang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yijie Zhang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Weixia Cai
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Dahai Hu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
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9
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Bray SJ, Gomez-Lamarca M. Notch after cleavage. Curr Opin Cell Biol 2018; 51:103-109. [DOI: 10.1016/j.ceb.2017.12.008] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 12/13/2017] [Indexed: 01/13/2023]
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10
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Wang Z, Lyu J, Wang F, Miao C, Nan Z, Zhang J, Xi Y, Zhou Q, Yang X, Ge W. The histone deacetylase HDAC1 positively regulates Notch signaling during Drosophila wing development. Biol Open 2018; 7:bio.029637. [PMID: 29437043 PMCID: PMC5861358 DOI: 10.1242/bio.029637] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
The Notch signaling pathway is highly conserved across different animal species and plays crucial roles in development and physiology. Regulation of Notch signaling occurs at multiple levels in different tissues and cell types. Here, we show that the histone deacetylase HDAC1 acts as a positive regulator of Notch signaling during Drosophila wing development. Depletion of HDAC1 causes wing notches on the margin of adult wing. Consistently, the expression of Notch target genes is reduced in the absence of HDAC1 during wing margin formation. We further provide evidence that HDAC1 acts upstream of Notch activation. Mechanistically, we show that HDAC1 regulates Notch protein levels by promoting Notch transcription. Consistent with this, the HDAC1-associated transcriptional co-repressor Atrophin (Atro) is also required for transcriptional activation of Notch in the wing disc. In summary, our results demonstrate that HDAC1 positively regulates Notch signaling and reveal a previously unidentified function of HDAC1 in Notch signaling.
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Affiliation(s)
- Zehua Wang
- Division of Human Reproduction and Developmental Genetics, The Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China.,Institute of Genetics and Department of Genetics, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China.,College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Jialan Lyu
- Division of Human Reproduction and Developmental Genetics, The Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China.,Institute of Genetics and Department of Genetics, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Fang Wang
- College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Chen Miao
- Division of Human Reproduction and Developmental Genetics, The Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China.,Institute of Genetics and Department of Genetics, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Zi Nan
- College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Jiayu Zhang
- Life Sciences Institute, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Yongmei Xi
- Division of Human Reproduction and Developmental Genetics, The Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China.,Institute of Genetics and Department of Genetics, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Qi Zhou
- Life Sciences Institute, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Xiaohang Yang
- Division of Human Reproduction and Developmental Genetics, The Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China.,Institute of Genetics and Department of Genetics, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Wanzhong Ge
- Division of Human Reproduction and Developmental Genetics, The Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China .,Institute of Genetics and Department of Genetics, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
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