1
|
Ha J, Kim M, Park JS, Lee Y, Lee JY, Shin JC, Seo D, Park SS, You J, Jung SM, Kim HY, Mizuno S, Takahashi S, Kim SJ, Park SH. SERTAD1 initiates NLRP3-mediated inflammasome activation through restricting NLRP3 polyubiquitination. Cell Rep 2024; 43:113752. [PMID: 38341852 DOI: 10.1016/j.celrep.2024.113752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 01/03/2024] [Accepted: 01/23/2024] [Indexed: 02/13/2024] Open
Abstract
We here demonstrate that SERTAD1 is an adaptor protein responsible for the regulation of lysine 63 (K63)-linked NLRP3 polyubiquitination by the Cullin1 E3 ubiquitin ligase upon inflammasome activation. SERTAD1 specifically binds to NLRP3 but not to other inflammasome sensors. This endogenous interaction increases after inflammasome activation, interfering with the interaction between NLRP3 and Cullin1. Interleukin (IL)-1β and IL-18 secretion, as well as the cleavage of gasdermin D, are decreased in SERTAD1 knockout bone-marrow-derived macrophages, together with reduced formation of the NLRP3 inflammasome complex. Additionally, SERTAD1-deficient mice show attenuated severity of monosodium-uric-acid-induced peritonitis and experimental autoimmune encephalomyelitis. Analysis of public datasets indicates that expression of SERTAD1 mRNA is significantly increased in the patients of autoimmune diseases. Thus, our findings uncover a function of SERTAD1 that specifically reduces Cullin1-mediated NLRP3 polyubiquitination via direct binding to NLRP3, eventually acting as a crucial factor to regulate the initiation of NLRP3-mediated inflammasome activation.
Collapse
Affiliation(s)
- Jihoon Ha
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Minbeom Kim
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jin Seok Park
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Yerin Lee
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jae Young Lee
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jin-Cheol Shin
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Dongyeob Seo
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Seong Shil Park
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jiyeon You
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Su Myung Jung
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Hye Young Kim
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 03080, Republic of Korea; SRC Center for Immune Research on Non-lymphoid Organs, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Seiya Mizuno
- Laboratory Animal Resource Center, Transborder Medical Research Center, Institute of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8578, Japan
| | - Satoru Takahashi
- Laboratory Animal Resource Center, Transborder Medical Research Center, Institute of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8578, Japan
| | - Seong-Jin Kim
- GILO Institute, GILO Foundation, Seoul 06668, Republic of Korea
| | - Seok Hee Park
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea; SRC Center for Immune Research on Non-lymphoid Organs, Sungkyunkwan University, Suwon 16419, Republic of Korea.
| |
Collapse
|
2
|
Akpoghiran O, Afonso DJS, Zhang Y, Koh K. TARANIS Interacts with VRILLE and PDP1 to Modulate the Circadian Transcriptional Feedback Mechanism in Drosophila. J Neurosci 2024; 44:e0922232023. [PMID: 38296648 PMCID: PMC10860567 DOI: 10.1523/jneurosci.0922-23.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 11/18/2023] [Accepted: 11/22/2023] [Indexed: 02/02/2024] Open
Abstract
The molecular clock that generates daily rhythms of behavior and physiology consists of interlocked transcription-translation feedback loops. In Drosophila, the primary feedback loop involving the CLOCK-CYCLE transcriptional activators and the PERIOD-TIMELESS transcriptional repressors is interlocked with a secondary loop involving VRILLE (VRI) and PAR DOMAIN PROTEIN 1 (PDP1), a repressor and activator of Clock transcription, respectively. Whereas extensive studies have found numerous transcriptional, translational, and posttranslational modulators of the primary loop, relatively little is known about the secondary loop. In this study, using male and female flies as well as cultured cells, we demonstrate that TARANIS (TARA), a Drosophila homolog of the TRIP-Br/SERTAD family of transcriptional coregulators, functions with VRI and PDP1 to modulate the circadian period and rhythm strength. Knocking down tara reduces rhythm amplitude and can shorten the period length, while overexpressing TARA lengthens the circadian period. Additionally, tara mutants exhibit reduced rhythmicity and lower expression of the PDF neuropeptide. We find that TARA can form a physical complex with VRI and PDP1, enhancing their repressor and activator functions, respectively. The conserved SERTA domain of TARA is required to regulate the transcriptional activity of VRI and PDP1, and its deletion leads to reduced locomotor rhythmicity. Consistent with TARA's role in enhancing VRI and PDP1 activity, overexpressing tara has a similar effect on the circadian period and rhythm strength as simultaneously overexpressing vri and Pdp1 Together, our results suggest that TARA modulates circadian behavior by enhancing the transcriptional activity of VRI and PDP1.
Collapse
Affiliation(s)
- Oghenerukevwe Akpoghiran
- Department of Neuroscience, the Farber Institute for Neurosciences, and Synaptic Biology Center, Thomas Jefferson University, Philadelphia 19107, Pennsylvania
| | - Dinis J S Afonso
- Department of Neuroscience, the Farber Institute for Neurosciences, and Synaptic Biology Center, Thomas Jefferson University, Philadelphia 19107, Pennsylvania
| | - Yanan Zhang
- Department of Neuroscience, the Farber Institute for Neurosciences, and Synaptic Biology Center, Thomas Jefferson University, Philadelphia 19107, Pennsylvania
| | - Kyunghee Koh
- Department of Neuroscience, the Farber Institute for Neurosciences, and Synaptic Biology Center, Thomas Jefferson University, Philadelphia 19107, Pennsylvania
| |
Collapse
|
3
|
Akpoghiran O, Afonso DJ, Zhang Y, Koh K. TARANIS interacts with VRILLE and PDP1 to modulate the circadian transcriptional feedback mechanism in Drosophila. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.19.541420. [PMID: 38076905 PMCID: PMC10705542 DOI: 10.1101/2023.05.19.541420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
The molecular clock that generates daily rhythms of behavior and physiology consists of interlocked transcription-translation feedback loops. In Drosophila, the primary feedback loop involving the CLOCK-CYCLE transcriptional activators and the PERIOD-TIMELESS transcriptional repressors is interlocked with a secondary loop involving VRILLE (VRI) and PAR DOMAIN PROTEIN 1 (PDP1), a repressor and activator of Clock transcription, respectively. Whereas extensive studies have found numerous transcriptional, translational, and post-translational modulators of the primary loop, relatively little is known about the secondary loop. In this study, using male and female flies as well as cultured cells, we demonstrate that TARANIS (TARA), a Drosophila homolog of the TRIP-Br/SERTAD family of transcriptional coregulators, functions with VRI and PDP1 to modulate the circadian period and rhythm strength. Knocking down tara reduces rhythm amplitude and can shorten the period length, while overexpressing TARA lengthens the circadian period. Additionally, tara mutants exhibit reduced rhythmicity and lower expression of the PDF neuropeptide. We find that TARA can form a physical complex with VRI and PDP1, enhancing their repressor and activator functions, respectively. The conserved SERTA domain of TARA is required to regulate the transcriptional activity of VRI and PDP1, and its deletion leads to reduced locomotor rhythmicity. Consistent with TARA's role in enhancing VRI and PDP1 activity, overexpressing tara has a similar effect on the circadian period and rhythm strength as simultaneously overexpressing vri and Pdp1. Together, our results suggest that TARA modulates circadian behavior by enhancing the transcriptional activity of VRI and PDP1.
Collapse
Affiliation(s)
- Oghenerukevwe Akpoghiran
- Department of Neuroscience, the Farber Institute for Neurosciences, and Synaptic Biology Center, Thomas Jefferson University, Philadelphia, USA. 19107
| | - Dinis J.S. Afonso
- Department of Neuroscience, the Farber Institute for Neurosciences, and Synaptic Biology Center, Thomas Jefferson University, Philadelphia, USA. 19107
| | - Yanan Zhang
- Department of Neuroscience, the Farber Institute for Neurosciences, and Synaptic Biology Center, Thomas Jefferson University, Philadelphia, USA. 19107
| | - Kyunghee Koh
- Department of Neuroscience, the Farber Institute for Neurosciences, and Synaptic Biology Center, Thomas Jefferson University, Philadelphia, USA. 19107
| |
Collapse
|
4
|
Abidi SNF, Hsu FTY, Smith-Bolton RK. Regenerative growth is constrained by brain tumor to ensure proper patterning in Drosophila. PLoS Genet 2023; 19:e1011103. [PMID: 38127821 PMCID: PMC10769103 DOI: 10.1371/journal.pgen.1011103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 01/05/2024] [Accepted: 12/06/2023] [Indexed: 12/23/2023] Open
Abstract
Some animals respond to injury by inducing new growth to regenerate the lost structures. This regenerative growth must be carefully controlled and constrained to prevent aberrant growth and to allow correct organization of the regenerating tissue. However, the factors that restrict regenerative growth have not been identified. Using a genetic ablation system in the Drosophila wing imaginal disc, we have identified one mechanism that constrains regenerative growth, impairment of which also leads to erroneous patterning of the final appendage. Regenerating discs with reduced levels of the RNA-regulator Brain tumor (Brat) exhibit enhanced regeneration, but produce adult wings with disrupted margins that are missing extensive tracts of sensory bristles. In these mutants, aberrantly high expression of the pro-growth factor Myc and its downstream targets likely contributes to this loss of cell-fate specification. Thus, Brat constrains the expression of pro-regeneration genes and ensures that the regenerating tissue forms the proper final structure.
Collapse
Affiliation(s)
- Syeda Nayab Fatima Abidi
- Department of Cell and Developmental Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
| | - Felicity Ting-Yu Hsu
- Department of Cell and Developmental Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
| | - Rachel K. Smith-Bolton
- Department of Cell and Developmental Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
- Carle R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
| |
Collapse
|
5
|
Alerasool N, Leng H, Lin ZY, Gingras AC, Taipale M. Identification and functional characterization of transcriptional activators in human cells. Mol Cell 2022; 82:677-695.e7. [PMID: 35016035 DOI: 10.1016/j.molcel.2021.12.008] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 11/04/2021] [Accepted: 12/09/2021] [Indexed: 12/13/2022]
Abstract
Transcription is orchestrated by thousands of transcription factors (TFs) and chromatin-associated proteins, but how these are causally connected to transcriptional activation is poorly understood. Here, we conduct an unbiased proteome-scale screen to systematically uncover human proteins that activate transcription in a natural chromatin context. By combining interaction proteomics and chemical inhibitors, we delineate the preference of these transcriptional activators for specific co-activators, highlighting how even closely related TFs can function via distinct cofactors. We also identify potent transactivation domains among the hits and use AlphaFold2 to predict and experimentally validate interaction interfaces of two activation domains with BRD4. Finally, we show that many novel activators are partners in fusion events in tumors and functionally characterize a myofibroma-associated fusion between SRF and C3orf62, a potent p300-dependent activator. Our work provides a functional catalog of potent transactivators in the human proteome and a platform for discovering transcriptional regulators at genome scale.
Collapse
Affiliation(s)
- Nader Alerasool
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada; Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada
| | - He Leng
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada
| | - Zhen-Yuan Lin
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health System, Toronto, ON M5G 1X5, Canada
| | - Anne-Claude Gingras
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada; Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health System, Toronto, ON M5G 1X5, Canada.
| | - Mikko Taipale
- Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada; Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada.
| |
Collapse
|
6
|
Zhang J, Le Gras S, Pouxvielh K, Faure F, Fallone L, Kern N, Moreews M, Mathieu AL, Schneider R, Marliac Q, Jung M, Berton A, Hayek S, Vidalain PO, Marçais A, Dodard G, Dejean A, Brossay L, Ghavi-Helm Y, Walzer T. Sequential actions of EOMES and T-BET promote stepwise maturation of natural killer cells. Nat Commun 2021; 12:5446. [PMID: 34521844 PMCID: PMC8440589 DOI: 10.1038/s41467-021-25758-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 08/06/2021] [Indexed: 02/08/2023] Open
Abstract
EOMES and T-BET are related T-box transcription factors that control natural killer (NK) cell development. Here we demonstrate that EOMES and T-BET regulate largely distinct gene sets during this process. EOMES is dominantly expressed in immature NK cells and drives early lineage specification by inducing hallmark receptors and functions. By contrast, T-BET is dominant in mature NK cells, where it induces responsiveness to IL-12 and represses the cell cycle, likely through transcriptional repressors. Regardless, many genes with distinct functions are co-regulated by the two transcription factors. By generating two gene-modified mice facilitating chromatin immunoprecipitation of endogenous EOMES and T-BET, we show a strong overlap in their DNA binding targets, as well as extensive epigenetic changes during NK cell differentiation. Our data thus suggest that EOMES and T-BET may distinctly govern, via differential expression and co-factors recruitment, NK cell maturation by inserting partially overlapping epigenetic regulations.
Collapse
MESH Headings
- Animals
- Base Sequence
- Bone Marrow Cells/cytology
- Bone Marrow Cells/immunology
- CD11b Antigen/genetics
- CD11b Antigen/immunology
- Cell Cycle/drug effects
- Cell Cycle/genetics
- Cell Cycle/immunology
- Cell Differentiation
- Cell Lineage/drug effects
- Cell Lineage/genetics
- Cell Lineage/immunology
- Epigenesis, Genetic/immunology
- Interleukin-12/pharmacology
- Killer Cells, Natural/cytology
- Killer Cells, Natural/drug effects
- Killer Cells, Natural/immunology
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Transgenic
- Promoter Regions, Genetic
- Protein Binding
- Spleen/cytology
- Spleen/immunology
- T-Box Domain Proteins/deficiency
- T-Box Domain Proteins/genetics
- T-Box Domain Proteins/immunology
- Transcription, Genetic
- Tumor Necrosis Factor Receptor Superfamily, Member 7/genetics
- Tumor Necrosis Factor Receptor Superfamily, Member 7/immunology
Collapse
Affiliation(s)
- Jiang Zhang
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, China
| | - Stéphanie Le Gras
- IGBMC, CNRS UMR7104, Inserm U1258, Université de Strasbourg, Illkirch, France
- Plateforme GenomEast, infrastructure France Génomique, Illkirch, France
| | - Kevin Pouxvielh
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Fabrice Faure
- Institut NeuroMyoGène, INSERM U1217/CNRS UMR5310, Université de Lyon, Université Claude Bernard, Lyon 1, Lyon, France
| | - Lucie Fallone
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Nicolas Kern
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Marion Moreews
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Anne-Laure Mathieu
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Raphaël Schneider
- Institut de Génomique Fonctionnelle de Lyon, CNRS UMR 5242, Ecole Normale Supérieure de Lyon Université Claude Bernard Lyon 1, 46 allée d'Italie, F-69364, Lyon, France
| | - Quentin Marliac
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Mathieu Jung
- IGBMC, CNRS UMR7104, Inserm U1258, Université de Strasbourg, Illkirch, France
- Plateforme GenomEast, infrastructure France Génomique, Illkirch, France
| | - Aurore Berton
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Simon Hayek
- Equipe Chimie et Biologie, Modélisation et Immunologie pour la Thérapie (CBMIT), Université Paris Descartes, CNRS UMR 8601, 75006, Paris, France
| | - Pierre-Olivier Vidalain
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
- Equipe Chimie et Biologie, Modélisation et Immunologie pour la Thérapie (CBMIT), Université Paris Descartes, CNRS UMR 8601, 75006, Paris, France
| | - Antoine Marçais
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Garvin Dodard
- Department of Molecular Microbiology and Immunology, Division of Biology and Medicine, Brown University Alpert Medical School, Providence, RI, 02912, USA
| | - Anne Dejean
- Institut Toulousain des Maladies Infectieuses et Inflammatoires (Infinity), INSERM UMR1291 - CNRS UMR5051 - Université Toulouse III, Toulouse, France
| | - Laurent Brossay
- Department of Molecular Microbiology and Immunology, Division of Biology and Medicine, Brown University Alpert Medical School, Providence, RI, 02912, USA
| | - Yad Ghavi-Helm
- Institut de Génomique Fonctionnelle de Lyon, CNRS UMR 5242, Ecole Normale Supérieure de Lyon Université Claude Bernard Lyon 1, 46 allée d'Italie, F-69364, Lyon, France
| | - Thierry Walzer
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France.
| |
Collapse
|
7
|
Zhang Z, Liu J, Wu Y, Zhao X, Hao Y, Wang X, Xue C, Wang Y, Zhang R, Zhang X. Long Noncoding RNA SERTAD2-3 Inhibits Osteosarcoma Proliferation and Migration by Competitively Binding miR-29c. Genet Test Mol Biomarkers 2020; 24:67-72. [PMID: 31999493 DOI: 10.1089/gtmb.2019.0164] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Background: Osteosarcoma (OS) is a malignant tumor disease with high morbidity and mortality in children and adolescents. Recently, attention has been focused on the effects of long noncoding RNAs (lncRNAs) on tumor biology. In this study, we identified the role of lnc-SERTAD2-3 in the development of OS. Materials and Methods: Sixty OS samples and adjacent tissues were collected to determine the relationship between lnc-SERTAD2-3 levels and clinicopathological characteristics. Quantitative real-time PCR (qPCR) was used to measure gene expression levels. A transwell invasion assay, a Cell Counting Kit-8 assay, and flow cytometry were used to measure cell migration, growth, and apoptosis, respectively. The binding site between the lnc-SERTAD2-3 and miR-29c RNAs was evaluated using a luciferase reporter assay. Results: The expression of the lnc-SERTAD2-3 was significantly downregulated in OS samples and three OS cell lines (MG-63, U2OS, and Saos-2) compared to normal tissue. Patients with lower levels of lnc-SERTAD2-3 expression had a more unfavorable prognosis (larger OS size, distant metastasis, and recurrence). Overexpression of lnc-SERTAD2-3 inhibited proliferation and migration, and promoted apoptosis in OS cells. Moreover, we found that lnc-SERTAD2-3 could suppress miR-29c by direct binding. Moreover, reexpression of miR-29c reversed the effect of lnc-SERTAD2-3 on OS cells. Conclusion: Overall, lnc-SERTAD2-3, an OS suppressor, is involved in the inhibition of OS proliferation and migration by targeting miR-29c.
Collapse
Affiliation(s)
- Zhifa Zhang
- Department of Orthopaedics, The PLA General Hospital, Beijing, China
| | - Jiangjun Liu
- Department of Orthopaedics, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Yuezhou Wu
- Department of Emergency Medicine, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Xuelin Zhao
- Department of Orthopaedics, The PLA General Hospital, Beijing, China
| | - Yongyu Hao
- Department of Orthopaedics, The PLA General Hospital, Beijing, China
| | - Xiangyu Wang
- Department of Orthopaedics, The PLA General Hospital, Beijing, China
| | - Chao Xue
- Department of Orthopaedics, The PLA General Hospital, Beijing, China
| | - Yan Wang
- Department of Orthopaedics, The PLA General Hospital, Beijing, China
| | - Rui Zhang
- Department of Emergency Medicine, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Xuesong Zhang
- Department of Orthopaedics, The PLA General Hospital, Beijing, China
| |
Collapse
|
8
|
Mongre RK, Mishra CB, Jung S, Lee BS, Quynh NTN, Anh NH, Myagmarjav D, Jo T, Lee MS. Exploring the Role of TRIP-Brs in Human Breast Cancer: An Investigation of Expression, Clinicopathological Significance, and Prognosis. MOLECULAR THERAPY-ONCOLYTICS 2020; 19:105-126. [PMID: 33102693 PMCID: PMC7554327 DOI: 10.1016/j.omto.2020.09.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 09/10/2020] [Indexed: 02/06/2023]
Abstract
TRIP-Brs, a group of transcription factors (TFs) that modulate several mechanisms in higher organisms. However, the novel paradigm to target TRIP-Brs in specific cancer remains to be deciphered. In particular, comprehensive analysis of TRIP-Brs in clinicopathological and patients’ prognosis, especially in breast cancer (BRCA), is being greatly ignored. Therefore, we explored the key roles of TRIP-Br expression, modulatory effects, mutations, immune infiltration, and prognosis in BRCA using multidimensional approaches. We found elevated levels of TRIP-Brs in numerous cancer tissues than normal. Higher expression of TRIP-Br-2/4/5 was shown to be positively associated with lower survival, tumor grade, and malignancy of patients with BRCA. Additionally, higher TRIP-Br-3/4 were also significantly linked with worse/short survival of BRCA patients. TRIP-Br-1/4/5 were significantly overexpressed and enhanced tumorigenesis in large-scale BRCA datasets. The mRNA levels of TRIP-Brs have been also correlated with tumor immune infiltrate in BRCA patients. In addition, TRIP-Brs synergistically play a pivotal role in central carbon metabolism, cancer-associated pathways, cell cycle, and thyroid hormone signaling, which evoke that TRIP-Brs may be a potential target for the therapy of BRCA. Thus, this investigation may lay a foundation for further research on TRIP-Br-mediated management of BRCA.
Collapse
Affiliation(s)
- Raj Kumar Mongre
- Molecular Cancer Biology Laboratory, Cellular Heterogeneity Research Center, Department of Biosystem, Sookmyung Women's University, Hyochangwon gil-52, Yongsan-Gu, Seoul 140-742, Republic of Korea
| | - Chandra Bhushan Mishra
- College of Pharmacy, Sookmyung Women's University, Hyochangwon gil-52, Yongsan-Gu, Seoul 140-742, Republic of Korea
| | - Samil Jung
- Molecular Cancer Biology Laboratory, Cellular Heterogeneity Research Center, Department of Biosystem, Sookmyung Women's University, Hyochangwon gil-52, Yongsan-Gu, Seoul 140-742, Republic of Korea
| | - Beom Suk Lee
- Molecular Cancer Biology Laboratory, Cellular Heterogeneity Research Center, Department of Biosystem, Sookmyung Women's University, Hyochangwon gil-52, Yongsan-Gu, Seoul 140-742, Republic of Korea
| | - Nguyen Thi Ngoc Quynh
- Molecular Cancer Biology Laboratory, Cellular Heterogeneity Research Center, Department of Biosystem, Sookmyung Women's University, Hyochangwon gil-52, Yongsan-Gu, Seoul 140-742, Republic of Korea
| | - Nguyen Hai Anh
- Molecular Cancer Biology Laboratory, Cellular Heterogeneity Research Center, Department of Biosystem, Sookmyung Women's University, Hyochangwon gil-52, Yongsan-Gu, Seoul 140-742, Republic of Korea
| | - Davaajragal Myagmarjav
- Molecular Cancer Biology Laboratory, Cellular Heterogeneity Research Center, Department of Biosystem, Sookmyung Women's University, Hyochangwon gil-52, Yongsan-Gu, Seoul 140-742, Republic of Korea
| | - Taeyeon Jo
- Molecular Cancer Biology Laboratory, Cellular Heterogeneity Research Center, Department of Biosystem, Sookmyung Women's University, Hyochangwon gil-52, Yongsan-Gu, Seoul 140-742, Republic of Korea
| | - Myeong-Sok Lee
- Molecular Cancer Biology Laboratory, Cellular Heterogeneity Research Center, Department of Biosystem, Sookmyung Women's University, Hyochangwon gil-52, Yongsan-Gu, Seoul 140-742, Republic of Korea
| |
Collapse
|
9
|
SERTA Domain Containing Protein 1 (SERTAD1) Interacts with Classical Swine Fever Virus Structural Glycoprotein E2, Which Is Involved in Virus Virulence in Swine. Viruses 2020; 12:v12040421. [PMID: 32283651 PMCID: PMC7232485 DOI: 10.3390/v12040421] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/05/2020] [Accepted: 04/07/2020] [Indexed: 12/11/2022] Open
Abstract
E2 is the major structural glycoprotein of the classical swine fever virus (CSFV). E2 has been shown to be involved in important virus functions such as replication and virulence in swine. Using the yeast two-hybrid system, we previously identified several host proteins specifically interacting with CSFV E2. Here, we analyze the protein interaction of E2 with SERTA domain containing protein 1 (SERTAD1), a factor involved in the stimulation of the transcriptional activities of different host genes. We have confirmed that the interaction between these two proteins occurs in CSFV-infected swine cells by using a proximity ligation assay and confocal microscopy. Amino acid residues in the CSFV E2 protein that are responsible for mediating the interaction with SERTAD1 were mapped by a yeast two-hybrid approach using a randomly mutated E2 library. Using that information, a recombinant CSFV mutant (E2ΔSERTAD1v) that harbors substitutions in those residues mediating the protein-interaction with SERTAD1 was developed and used to study the role of the E2-SERTAD1 interaction in viral replication and virulence in swine. CSFV E2ΔSERTAD1v, when compared to the parental BICv, showed a clearly decreased ability to replicate in the SK6 swine cell line and a more severe replication defect in primary swine macrophage cultures. Importantly, 80% of animals infected with E2ΔSERTAD1v survived infection, remaining clinically normal during the 21-day observational period. This result would indicate that the ability of CSFV E2 to bind host SERTAD1 protein during infection plays a critical role in virus virulence.
Collapse
|
10
|
Sandag Z, Jung S, Quynh NTN, Myagmarjav D, Anh NH, Le DDT, Lee BS, Mongre RK, Jo T, Lee M. Inhibitory Role of TRIP-Br1/XIAP in Necroptosis under Nutrient/Serum Starvation. Mol Cells 2020; 43:236-250. [PMID: 32050753 PMCID: PMC7103882 DOI: 10.14348/molcells.2020.2193] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 12/19/2019] [Accepted: 01/02/2020] [Indexed: 12/16/2022] Open
Abstract
Currently, many available anti-cancer therapies are targeting apoptosis. However, many cancer cells have acquired resistance to apoptosis. To overcome this problem, simultaneous induction of other types of programmed cell death in addition to apoptosis of cancer cells might be an attractive strategy. For this purpose, we initially investigated the inhibitory role of TRIP-Br1/XIAP in necroptosis, a regulated form of necrosis, under nutrient/serum starvation. Our data showed that necroptosis was significantly induced in all tested 9 different types of cancer cell lines in response to prolonged serum starvation. Among them, necroptosis was induced at a relatively lower level in MCF-7 breast cancer line that was highly resistant to apoptosis than that in other cancer cell lines. Interestingly, TRIP-Br1 oncogenic protein level was found to be very high in this cell line. Upregulated TRIP-Br1 suppressed necroptosis by repressing reactive oxygen species generation. Such suppression of necroptosis was greatly enhanced by XIAP, a potent inhibitor of apoptosis. Our data also showed that TRIP-Br1 increased XIAP phosphorylation at serine87, an active form of XIAP. Our mitochondrial fractionation data revealed that TRIPBr1 protein level was greatly increased in the mitochondria upon serum starvation. It suppressed the export of CypD, a vital regulator in mitochondria-mediated necroptosis, from mitochondria to cytosol. TRIP-Br1 also suppressed shikoninmediated necroptosis, but not TNF-α-mediated necroptosis, implying possible presence of another signaling pathway in necroptosis. Taken together, our results suggest that TRIPBr1/XIAP can function as onco-proteins by suppressing necroptosis of cancer cells under nutrient/serum starvation.
Collapse
Affiliation(s)
- Zolzaya Sandag
- Department of Biological Science, Sookmyung Women’s University, Seoul 430, Korea
| | - Samil Jung
- Department of Biological Science, Sookmyung Women’s University, Seoul 430, Korea
| | | | | | - Nguyen Hai Anh
- Department of Biological Science, Sookmyung Women’s University, Seoul 430, Korea
| | - Dan-Diem Thi Le
- Department of Biological Science, Sookmyung Women’s University, Seoul 430, Korea
| | - Beom Suk Lee
- Department of Biological Science, Sookmyung Women’s University, Seoul 430, Korea
| | - Raj Kumar Mongre
- Department of Biological Science, Sookmyung Women’s University, Seoul 430, Korea
| | - Taeyeon Jo
- Department of Biological Science, Sookmyung Women’s University, Seoul 430, Korea
| | - MyeongSok Lee
- Department of Biological Science, Sookmyung Women’s University, Seoul 430, Korea
| |
Collapse
|
11
|
Stratton MS, Bagchi RA, Felisbino MB, Hirsch RA, Smith HE, Riching AS, Enyart BY, Koch KA, Cavasin MA, Alexanian M, Song K, Qi J, Lemieux ME, Srivastava D, Lam MPY, Haldar SM, Lin CY, McKinsey TA. Dynamic Chromatin Targeting of BRD4 Stimulates Cardiac Fibroblast Activation. Circ Res 2019; 125:662-677. [PMID: 31409188 DOI: 10.1161/circresaha.119.315125] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
RATIONALE Small molecule inhibitors of the acetyl-histone binding protein BRD4 have been shown to block cardiac fibrosis in preclinical models of heart failure (HF). However, since the inhibitors target BRD4 ubiquitously, it is unclear whether this chromatin reader protein functions in cell type-specific manner to control pathological myocardial fibrosis. Furthermore, the molecular mechanisms by which BRD4 stimulates the transcriptional program for cardiac fibrosis remain unknown. OBJECTIVE We sought to test the hypothesis that BRD4 functions in a cell-autonomous and signal-responsive manner to control activation of cardiac fibroblasts, which are the major extracellular matrix-producing cells of the heart. METHODS AND RESULTS RNA-sequencing, mass spectrometry, and cell-based assays employing primary adult rat ventricular fibroblasts demonstrated that BRD4 functions as an effector of TGF-β (transforming growth factor-β) signaling to stimulate conversion of quiescent cardiac fibroblasts into Periostin (Postn)-positive cells that express high levels of extracellular matrix. These findings were confirmed in vivo through whole-transcriptome analysis of cardiac fibroblasts from mice subjected to transverse aortic constriction and treated with the small molecule BRD4 inhibitor, JQ1. Chromatin immunoprecipitation-sequencing revealed that BRD4 undergoes stimulus-dependent, genome-wide redistribution in cardiac fibroblasts, becoming enriched on a subset of enhancers and super-enhancers, and leading to RNA polymerase II activation and expression of downstream target genes. Employing the Sertad4 (SERTA domain-containing protein 4) locus as a prototype, we demonstrate that dynamic chromatin targeting of BRD4 is controlled, in part, by p38 MAPK (mitogen-activated protein kinase) and provide evidence of a critical function for Sertad4 in TGF-β-mediated cardiac fibroblast activation. CONCLUSIONS These findings define BRD4 as a central regulator of the pro-fibrotic cardiac fibroblast phenotype, establish a p38-dependent signaling circuit for epigenetic reprogramming in heart failure, and uncover a novel role for Sertad4. The work provides a mechanistic foundation for the development of BRD4 inhibitors as targeted anti-fibrotic therapies for the heart.
Collapse
Affiliation(s)
- Matthew S Stratton
- From the Department of Medicine, Division of Cardiology (M.S.S., R.A.B., M.B.F., A.S.R., B.Y.E., K.A.K., M.A.C., K.S., M.P.Y.L., T.A.M.), University of Colorado Anschutz Medical Campus, Aurora.,Consortium for Fibrosis Research & Translation (M.S.S., R.A.B., M.B.F., A.S.R., B.Y.E., K.A.K., M.A.C., K.S., M.P.Y.L., T.A.M.), University of Colorado Anschutz Medical Campus, Aurora
| | - Rushita A Bagchi
- From the Department of Medicine, Division of Cardiology (M.S.S., R.A.B., M.B.F., A.S.R., B.Y.E., K.A.K., M.A.C., K.S., M.P.Y.L., T.A.M.), University of Colorado Anschutz Medical Campus, Aurora.,Consortium for Fibrosis Research & Translation (M.S.S., R.A.B., M.B.F., A.S.R., B.Y.E., K.A.K., M.A.C., K.S., M.P.Y.L., T.A.M.), University of Colorado Anschutz Medical Campus, Aurora
| | - Marina B Felisbino
- From the Department of Medicine, Division of Cardiology (M.S.S., R.A.B., M.B.F., A.S.R., B.Y.E., K.A.K., M.A.C., K.S., M.P.Y.L., T.A.M.), University of Colorado Anschutz Medical Campus, Aurora.,Consortium for Fibrosis Research & Translation (M.S.S., R.A.B., M.B.F., A.S.R., B.Y.E., K.A.K., M.A.C., K.S., M.P.Y.L., T.A.M.), University of Colorado Anschutz Medical Campus, Aurora
| | - Rachel A Hirsch
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX (R.A.H., H.E.S., C.Y.L.)
| | - Harrison E Smith
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX (R.A.H., H.E.S., C.Y.L.)
| | - Andrew S Riching
- From the Department of Medicine, Division of Cardiology (M.S.S., R.A.B., M.B.F., A.S.R., B.Y.E., K.A.K., M.A.C., K.S., M.P.Y.L., T.A.M.), University of Colorado Anschutz Medical Campus, Aurora.,Consortium for Fibrosis Research & Translation (M.S.S., R.A.B., M.B.F., A.S.R., B.Y.E., K.A.K., M.A.C., K.S., M.P.Y.L., T.A.M.), University of Colorado Anschutz Medical Campus, Aurora
| | - Blake Y Enyart
- From the Department of Medicine, Division of Cardiology (M.S.S., R.A.B., M.B.F., A.S.R., B.Y.E., K.A.K., M.A.C., K.S., M.P.Y.L., T.A.M.), University of Colorado Anschutz Medical Campus, Aurora.,Consortium for Fibrosis Research & Translation (M.S.S., R.A.B., M.B.F., A.S.R., B.Y.E., K.A.K., M.A.C., K.S., M.P.Y.L., T.A.M.), University of Colorado Anschutz Medical Campus, Aurora
| | - Keith A Koch
- From the Department of Medicine, Division of Cardiology (M.S.S., R.A.B., M.B.F., A.S.R., B.Y.E., K.A.K., M.A.C., K.S., M.P.Y.L., T.A.M.), University of Colorado Anschutz Medical Campus, Aurora.,Consortium for Fibrosis Research & Translation (M.S.S., R.A.B., M.B.F., A.S.R., B.Y.E., K.A.K., M.A.C., K.S., M.P.Y.L., T.A.M.), University of Colorado Anschutz Medical Campus, Aurora
| | - Maria A Cavasin
- From the Department of Medicine, Division of Cardiology (M.S.S., R.A.B., M.B.F., A.S.R., B.Y.E., K.A.K., M.A.C., K.S., M.P.Y.L., T.A.M.), University of Colorado Anschutz Medical Campus, Aurora.,Consortium for Fibrosis Research & Translation (M.S.S., R.A.B., M.B.F., A.S.R., B.Y.E., K.A.K., M.A.C., K.S., M.P.Y.L., T.A.M.), University of Colorado Anschutz Medical Campus, Aurora
| | - Michael Alexanian
- Gladstone Institute of Cardiovascular Disease, San Francisco, CA (M.A., D.S., S.M.H.)
| | - Kunhua Song
- From the Department of Medicine, Division of Cardiology (M.S.S., R.A.B., M.B.F., A.S.R., B.Y.E., K.A.K., M.A.C., K.S., M.P.Y.L., T.A.M.), University of Colorado Anschutz Medical Campus, Aurora.,Consortium for Fibrosis Research & Translation (M.S.S., R.A.B., M.B.F., A.S.R., B.Y.E., K.A.K., M.A.C., K.S., M.P.Y.L., T.A.M.), University of Colorado Anschutz Medical Campus, Aurora
| | - Jun Qi
- Department of Medical Oncology, Dana Farber Cancer Institute, Boston, MA (J.Q.)
| | | | - Deepak Srivastava
- Gladstone Institute of Cardiovascular Disease, San Francisco, CA (M.A., D.S., S.M.H.)
| | - Maggie P Y Lam
- From the Department of Medicine, Division of Cardiology (M.S.S., R.A.B., M.B.F., A.S.R., B.Y.E., K.A.K., M.A.C., K.S., M.P.Y.L., T.A.M.), University of Colorado Anschutz Medical Campus, Aurora.,Consortium for Fibrosis Research & Translation (M.S.S., R.A.B., M.B.F., A.S.R., B.Y.E., K.A.K., M.A.C., K.S., M.P.Y.L., T.A.M.), University of Colorado Anschutz Medical Campus, Aurora
| | - Saptarsi M Haldar
- Gladstone Institute of Cardiovascular Disease, San Francisco, CA (M.A., D.S., S.M.H.).,Cardiovascular Research Institute and Department of Medicine, Division of Cardiology UCSF School of Medicine, San Francisco, CA (S.M.H.).,Cardiometabolic Disorders, Amgen, San Francisco, CA (S.M.H.)
| | - Charles Y Lin
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX (R.A.H., H.E.S., C.Y.L.)
| | - Timothy A McKinsey
- From the Department of Medicine, Division of Cardiology (M.S.S., R.A.B., M.B.F., A.S.R., B.Y.E., K.A.K., M.A.C., K.S., M.P.Y.L., T.A.M.), University of Colorado Anschutz Medical Campus, Aurora.,Consortium for Fibrosis Research & Translation (M.S.S., R.A.B., M.B.F., A.S.R., B.Y.E., K.A.K., M.A.C., K.S., M.P.Y.L., T.A.M.), University of Colorado Anschutz Medical Campus, Aurora
| |
Collapse
|
12
|
Cheng AC, Shen CJ, Hung CM, Hsu YC. Sulforaphane Decrease of SERTAD1 Expression Triggers G1/S Arrest in Breast Cancer Cells. J Med Food 2019; 22:444-450. [PMID: 31084542 PMCID: PMC6534085 DOI: 10.1089/jmf.2018.4195] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Studies have identified the potential of chemopreventive effects of sulforaphane (SFN); however, the underlying mechanisms of its effect on breast cancer require further elucidation. This study investigated the anticancer effects of SFN that specifically induces G1/S arrest in breast ductal carcinoma (ZR-75-1) cells. The proliferation of the cancer cells after treatment with SFN was detected by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. DNA content and cell cycle status were analyzed through flow cytometry. Our results demonstrated the inhibition of growth in ZR-75-1 cells upon SFN exposure. In addition, SERTAD1 (SEI-1) caused the accumulation of SFN-treated G1/S-phase cells. The downregulation of SEI-1, cyclin D2, and histone deacetylase 3 suggested that in addition to the identified effects of SFN against breast cancer prevention, it may also exert antitumor activities in established breast cancer cells. In conclusion, SFN can inhibit growth of and induce cell cycle arrest in cancer cells, suggesting its potential role as an anticancer agent.
Collapse
Affiliation(s)
- An-Chin Cheng
- 1 Department of Nutrition and Health Sciences; College of Health Sciences; Chang Jung Christian University, Tainan, Taiwan
| | - Ching-Ju Shen
- 2 Department of Gynecology and Obstetrics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chao-Ming Hung
- 3 Department of General Surgery, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan
| | - Yi-Chiang Hsu
- 4 Department of Medical Sciences Industry, College of Health Sciences; Chang Jung Christian University, Tainan, Taiwan
| |
Collapse
|
13
|
Mirza-Aghazadeh-Attari M, Ostadian C, Saei AA, Mihanfar A, Darband SG, Sadighparvar S, Kaviani M, Samadi Kafil H, Yousefi B, Majidinia M. DNA damage response and repair in ovarian cancer: Potential targets for therapeutic strategies. DNA Repair (Amst) 2019; 80:59-84. [PMID: 31279973 DOI: 10.1016/j.dnarep.2019.06.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 06/01/2019] [Accepted: 06/15/2019] [Indexed: 12/24/2022]
Abstract
Ovarian cancer is among the most lethal gynecologic malignancies with a poor survival prognosis. The current therapeutic strategies involve surgery and chemotherapy. Research is now focused on novel agents especially those targeting DNA damage response (DDR) pathways. Understanding the DDR process in ovarian cancer necessitates having a detailed knowledge on a series of signaling mediators at the cellular and molecular levels. The complexity of the DDR process in ovarian cancer and how this process works in metastatic conditions is comprehensively reviewed. For evaluating the efficacy of therapeutic agents targeting DNA damage in ovarian cancer, we will discuss the components of this system including DDR sensors, DDR transducers, DDR mediators, and DDR effectors. The constituent pathways include DNA repair machinery, cell cycle checkpoints, and apoptotic pathways. We also will assess the potential of active mediators involved in the DDR process such as therapeutic and prognostic candidates that may facilitate future studies.
Collapse
Affiliation(s)
- Mohammad Mirza-Aghazadeh-Attari
- Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Caspian Ostadian
- Department of Biology, Faculty of Science, Urmia University, Urmia, Iran
| | - Amir Ata Saei
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, 171 77, Sweden
| | - Ainaz Mihanfar
- Department of Biochemistry, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Saber Ghazizadeh Darband
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, 171 77, Sweden; Student Research Committee, Urmia University of Medical Sciences, Urmia, Iran
| | - Shirin Sadighparvar
- Neurophysiology Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Mojtaba Kaviani
- School of Nutrition and Dietetics, Acadia University, Wolfville, Nova Scotia, Canada
| | | | - Bahman Yousefi
- Molecular MedicineResearch Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Clinical Biochemistry and Laboratory Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Maryam Majidinia
- Solid Tumor Research Center, Urmia University of Medical Sciences, Urmia, Iran.
| |
Collapse
|
14
|
Mongre RK, Jung S, Mishra CB, Lee BS, Kumari S, Lee MS. Prognostic and Clinicopathological Significance of SERTAD1 in Various Types of Cancer Risk: A Systematic Review and Retrospective Analysis. Cancers (Basel) 2019; 11:E337. [PMID: 30857225 PMCID: PMC6469047 DOI: 10.3390/cancers11030337] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 02/23/2019] [Accepted: 03/01/2019] [Indexed: 12/13/2022] Open
Abstract
SERTAD/TRIP-Br genes are considered as a key nuclear transcriptional player in diverse mechanisms of cell including carcinogenesis. The Oncomine™-Online Platform was used for differential expression and biological insights. Kaplan-Meier survival estimated by KM-plotter/cBioPortal/PrognoScan with 95% CI. SERTAD1 was found significantly elevated levels in most of tumor samples. Kaplan-Meier Plotter results distinctly showed the SERTAD1 over-expression significantly reduced median overall-survival (OS) of patients in liver (n = 364/Logrank-test p = 0.0015), ovarian (n = 655/Logrank-test p = 0.00011) and gastric (n = 631/Logrank-test p = 0.1866). Increased level of SERTAD1 has a significantly higher survival rate in the initial time period, but after 100 months slightly reduced OS (n = 26/Logrank-test p = 0.34) and RFS in HER2 positive breast cancer patients. In meta-analysis, cancer patients with higher SERTAD1 mRNA fold resulted worse overall survival than those with lower SERTAD1 levels. Heterogeneity was observed in the fixed effect model analysis DFS [Tau² = 0.0.073, Q (df = 4) = 15.536 (p = 0.004), I² = 74.253], DSS [Tau² = 1.015, Q (df = 2) = 33.214, (p = 0.000), I² = 93.973], RFS [Tau² = 0.492, Q (df = 7) = 71.133 (p = 0.000), I² = 90.159] (Figure 5). OS [Tau² = 0.480, Q (df = 17) = 222.344 (p = 0.000), I² = 92.354]. Lastly, SERTAD1 involved in several signaling cascades through interaction and correlation with many candidate factors as well as miRNAs. This meta-analysis demonstrates a robust evidence of an association between higher or lower SERTAD1, alteration and without alteration of SERTAD1 in cancers in terms of survival and cancer invasiveness.
Collapse
Affiliation(s)
- Raj Kumar Mongre
- Molecular Cancer Biology Laboratory, Cellular Heterogeneity Research Center, Department of Biosystem, Sookmyung Women's University, Hyochangwon gil-52, Yongsan-Gu, Seoul 140-742, Korea.
| | - Samil Jung
- Molecular Cancer Biology Laboratory, Cellular Heterogeneity Research Center, Department of Biosystem, Sookmyung Women's University, Hyochangwon gil-52, Yongsan-Gu, Seoul 140-742, Korea.
| | - Chandra Bhushan Mishra
- Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi 110007, India.
| | - Beom Suk Lee
- Molecular Cancer Biology Laboratory, Cellular Heterogeneity Research Center, Department of Biosystem, Sookmyung Women's University, Hyochangwon gil-52, Yongsan-Gu, Seoul 140-742, Korea.
| | - Shikha Kumari
- Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi 110007, India.
| | - Myeong-Sok Lee
- Molecular Cancer Biology Laboratory, Cellular Heterogeneity Research Center, Department of Biosystem, Sookmyung Women's University, Hyochangwon gil-52, Yongsan-Gu, Seoul 140-742, Korea.
| |
Collapse
|
15
|
Shiraishi K, Shichino S, Tsukui T, Hashimoto S, Ueha S, Matsushima K. Engraftment and proliferation potential of embryonic lung tissue cells in irradiated mice with emphysema. Sci Rep 2019; 9:3657. [PMID: 30842492 PMCID: PMC6403395 DOI: 10.1038/s41598-019-40237-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 02/08/2019] [Indexed: 12/26/2022] Open
Abstract
Recently, there has been increasing interest in stem cell transplantation therapy, to treat chronic respiratory diseases, using lung epithelial cells or alveolospheres derived from endogenous lung progenitor cells. However, optimal transplantation strategy of these cells has not been addressed. To gain insight into the optimization of stem cell transplantation therapy, we investigated whether lung cell engraftment potential differ among different developmental stages. After preconditioning with irradiation and elastase to induce lung damage, we infused embryonic day 15.5 (E15.5) CAG-EGFP whole lung cells, and confirmed the engraftment of epithelial cells, endothelial cells, and mesenchymal cells. The number of EGFP-positive epithelial cells increased from day 7 to 28 after infusion. Among epithelial cells derived from E13.5, E15.5, E18.5, P7, P14, and P56 mice, E15.5 cells demonstrated the most efficient engraftment. In vitro, E15.5 epithelial cells showed high proliferation potential. Transcriptome analyses of sorted epithelial cells from E13.5, E15.5, E18.5, P14, and P56 mice revealed that cell cycle and cell-cell adhesion genes were highly enriched in E15.5 epithelial cells. Our findings suggest that cell therapy for lung diseases might be most effective when epithelial cells with transcriptional traits similar to those of E15.5 epithelial cells are used.
Collapse
Affiliation(s)
- Kazushige Shiraishi
- Department of Molecular Preventive Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan.,Division of Molecular Regulation of Inflammatory and Immune Diseases, Research Institute of Biomedical Sciences, Tokyo University of Science, Noda, 278-0022, Japan
| | - Shigeyuki Shichino
- Department of Molecular Preventive Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan.,Division of Molecular Regulation of Inflammatory and Immune Diseases, Research Institute of Biomedical Sciences, Tokyo University of Science, Noda, 278-0022, Japan
| | - Tatsuya Tsukui
- Department of Molecular Preventive Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Shinichi Hashimoto
- Department of Molecular Preventive Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan.,Division of Molecular Regulation of Inflammatory and Immune Diseases, Research Institute of Biomedical Sciences, Tokyo University of Science, Noda, 278-0022, Japan.,Department of Integrative Medicine for Longevity, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, 920-8641, Japan
| | - Satoshi Ueha
- Department of Molecular Preventive Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan.,Division of Molecular Regulation of Inflammatory and Immune Diseases, Research Institute of Biomedical Sciences, Tokyo University of Science, Noda, 278-0022, Japan
| | - Kouji Matsushima
- Department of Molecular Preventive Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan. .,Division of Molecular Regulation of Inflammatory and Immune Diseases, Research Institute of Biomedical Sciences, Tokyo University of Science, Noda, 278-0022, Japan.
| |
Collapse
|
16
|
Pang S, Xu Y, Chen J, Li G, Huang J, Wu X. Knockdown of cell division cycle-associated protein 4 expression inhibits proliferation of triple negative breast cancer MDA-MB-231 cells in vitro and in vivo. Oncol Lett 2019; 17:4393-4400. [PMID: 30944632 PMCID: PMC6444385 DOI: 10.3892/ol.2019.10077] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 02/08/2019] [Indexed: 12/25/2022] Open
Abstract
Cell division cycle-associated protein 4 (CDCA4), also known as SEI-3/hematopoietic progenitor protein, is a target gene of transcription factor E2F and represses E2F-dependent transcriptional activation and cell proliferation. The present study investigated the effects of CDCA4 knockdown on the regulation of triple negative breast cancer (TNBC) cell proliferation in vitro and in vivo. Human TNBC MDA-MB-231 cells were subjected to CDCA4 expression knockdown using a lentiviral vector carrying CDCA4 or a negative control short hairpin RNA, and reverse transcription-quantitative polymerase chain reaction, MTT cell viability, cell growth, flow cytometric apoptosis, cell cycle and nude mouse tumorigenesis assays were conducted. The knockdown of CDCA4 expression effectively inhibited the growth of MDA-MB-231 cells by promoting apoptosis in vitro. Additionally, CDCA4 expression knockdown suppressed nude mouse tumor cell xenograft formation and growth in vivo. In conclusion, the data from the present study supported the hypothesis that CDCA4 may be involved in regulating human TNBC progression, and that targeting CDCA4 expression could be useful as a novel strategy in future TNBC treatment.
Collapse
Affiliation(s)
- Sen Pang
- Department of Gastrointestinal and Gland Surgery, The First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Yuju Xu
- Department of Gastrointestinal and Gland Surgery, The First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Jun Chen
- Department of Gastrointestinal and Gland Surgery, The First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Guibin Li
- Department of Gastrointestinal and Gland Surgery, The First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Jingle Huang
- Department of Gastrointestinal and Gland Surgery, The First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Xianghua Wu
- Department of Gastrointestinal and Gland Surgery, The First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| |
Collapse
|
17
|
Hu B, Hu H, Yin M, Sun Z, Chen X, Li Y, Sun Z, Liu C, Li L, Qiu Y. Sertad1 promotes prostate cancer progression through binding androgen receptor ligand binding domain. Int J Cancer 2018; 144:558-568. [PMID: 30230528 DOI: 10.1002/ijc.31877] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 08/11/2018] [Accepted: 08/30/2018] [Indexed: 02/01/2023]
Abstract
Androgen receptor (AR) signaling is involved in the initiation and progression of prostate cancer (PCa), which is the most frequently diagnosed nonskin cancer and remains a leading cause of cancer-related death in men. Further investigation of the involvement of AR signaling in PCa progression is urgently needed. In the present study, we performed a yeast two-hybrid screen and demonstrated that SERTA domain-containing protein 1 (Sertad1) is a novel AR-binding protein that binds to the AR ligand binding domain (LBD). The binding between AR-LBD and Sertad1 was confirmed by glutathione S-transferase (GST) pull-down assays and immunoprecipitation (IP) and confocal immunofluorescence co-localization experiments. Furthermore, we demonstrated that DHT inhibited Sertad1 protein degradation in prostate cancer cell lines and that Sertad1 knockdown inhibited the proliferation of prostate cancer cells in vitro. In human PCa tumor tissues, Sertad1 expression is positively correlated with AR expression and the Gleason score. Taken together, this report is the first to show that Sertad1 is a novel AR-LBD-binding protein, and DHT-liganded AR-LBD inhibits Sertad1 degradation. Thus, Sertad1 may represent a novel therapeutic target for the treatment of AR-positive PCa.
Collapse
Affiliation(s)
- Bingqing Hu
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Haidi Hu
- Department of Surgery, The First Hospital of China Medical University, Shenyang, People's Republic of China
| | - Mingzhu Yin
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, People's Republic of China
- Department of Pathology, Yale University School of Medicine, New Haven, CT
| | - Zhengrong Sun
- Virus Laboratory, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Xiaoya Chen
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Ying Li
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Ziyi Sun
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Cong Liu
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Ling Li
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Yang Qiu
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| |
Collapse
|
18
|
Qiu S, Liu S, Yu T, Yu J, Wang M, Rao Q, Xing H, Tang K, Mi Y, Wang J. Sertad1 antagonizes iASPP function by hindering its entrance into nuclei to interact with P53 in leukemic cells. BMC Cancer 2017; 17:795. [PMID: 29179704 PMCID: PMC5704379 DOI: 10.1186/s12885-017-3787-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 11/15/2017] [Indexed: 12/03/2022] Open
Abstract
Background As the important suppressor of P53, iASPP is found to be overexpressed in leukemia, and functions as oncogene that inhibited apoptosis of leukemia cells. Sertad1 is identified as one of the proteins that can bind with iASPP in our previous study by two-hybrid screen. Methods Co-immunoprecipitation and immunofluorescence were perfomed to identified the interaction between iASPP and Sertad1 protein. Westernblot and Real-time quantitative PCR were used to determine the expression and activation of proteins. Cell proliferation assays, cell cycle and cell apoptosis were examined by flow cytometric analysis. Results iASPP combined with Sertad1 in leukemic cell lines and the interaction occurred in the cytoplasm near nuclear membrane. iASPP could interact with Sertad1 through its Cyclin-A, PHD-bromo, C terminal domain, except for S domain. Overexpression of iASPP in leukemic cells resulted in the increased cell proliferation and resistance to apoptosis induced by chemotherapy drugs. While overexpression of iASPP and Sertad1 at the same time could slow down the cell proliferation, lead the cells more vulnerable to the chemotherapy drugs, the resistance to chemotherapeutic drug in iASPPhi leukemic cells was accompanied by Puma protein expression. Excess Sertad1 protein could tether iASPP protein in the cytoplasm, further reduced the binding between iASPP and P53 in the nucleus. Conclusions Sertad1 could antagonize iASPP function by hindering its entrance into nuclei to interact with P53 in leukemic cells when iASPP was in the stage of overproduction. Electronic supplementary material The online version of this article (10.1186/s12885-017-3787-2) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Shaowei Qiu
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College (CAMS & PUMC), 288 Nanjing Road, Tianjin, 300020, People's Republic of China
| | - Shuang Liu
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College (CAMS & PUMC), 288 Nanjing Road, Tianjin, 300020, People's Republic of China
| | - Tengteng Yu
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College (CAMS & PUMC), 288 Nanjing Road, Tianjin, 300020, People's Republic of China
| | - Jing Yu
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College (CAMS & PUMC), 288 Nanjing Road, Tianjin, 300020, People's Republic of China
| | - Min Wang
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College (CAMS & PUMC), 288 Nanjing Road, Tianjin, 300020, People's Republic of China
| | - Qing Rao
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College (CAMS & PUMC), 288 Nanjing Road, Tianjin, 300020, People's Republic of China
| | - Haiyan Xing
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College (CAMS & PUMC), 288 Nanjing Road, Tianjin, 300020, People's Republic of China
| | - Kejing Tang
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College (CAMS & PUMC), 288 Nanjing Road, Tianjin, 300020, People's Republic of China
| | - Yinchang Mi
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College (CAMS & PUMC), 288 Nanjing Road, Tianjin, 300020, People's Republic of China
| | - Jianxiang Wang
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College (CAMS & PUMC), 288 Nanjing Road, Tianjin, 300020, People's Republic of China.
| |
Collapse
|
19
|
Xu Y, Wu X, Li F, Huang D, Zhu W. CDCA4, a downstream gene of the Nrf2 signaling pathway, regulates cell proliferation and apoptosis in the MCF‑7/ADM human breast cancer cell line. Mol Med Rep 2017; 17:1507-1512. [PMID: 29257222 PMCID: PMC5780089 DOI: 10.3892/mmr.2017.8095] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 08/31/2017] [Indexed: 12/12/2022] Open
Abstract
The present study aimed to examine the effect of RNA interference targeting cell division cycle-associated protein 4 (CDCA4) on the proliferation and apoptosis of the MCF-7/ADR' human breast cancer cell line. CDCA4 has been shown to have a unique role in regulating cell cycle. In the present study, the expression of CDCA4 was suppressed by CDCA4-specific short hairpin (sh)RNA transfection of the human breast cancer cells, following which changes in the proliferation and apoptosis of the CDCA4-knockdown cells were compared with those of control shRNA-transfected cells. The results confirmed that CDCA4 RNA interference reduced the percentage of human breast cancer cells to <50%. In addition, RNA interference of CDCA4 resulted in a significant increase in the apoptotic rate of cells. Taken together, these results suggested that CDCA4 enhanced proliferation and reduced apoptosis in the MCF-7/ADM human breast cancer cells in vitro.
Collapse
Affiliation(s)
- Yuju Xu
- Department of Gastrointestinal Gland Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Xianghua Wu
- Department of Gastrointestinal Gland Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Fengxi Li
- Department of Gastrointestinal Gland Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Daolai Huang
- Department of Gastrointestinal Gland Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Wenxiang Zhu
- Department of Gastrointestinal Gland Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| |
Collapse
|
20
|
Hu W, Yu X, Liu Z, Sun Y, Chen X, Yang X, Li X, Lam WK, Duan Y, Cao X, Steller H, Liu K, Huang P. The complex of TRIP-Br1 and XIAP ubiquitinates and degrades multiple adenylyl cyclase isoforms. eLife 2017; 6. [PMID: 28656888 PMCID: PMC5503512 DOI: 10.7554/elife.28021] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Accepted: 06/28/2017] [Indexed: 12/03/2022] Open
Abstract
Adenylyl cyclases (ACs) generate cAMP, a second messenger of utmost importance that regulates a vast array of biological processes in all kingdoms of life. However, almost nothing is known about how AC activity is regulated through protein degradation mediated by ubiquitination or other mechanisms. Here, we show that transcriptional regulator interacting with the PHD-bromodomain 1 (TRIP-Br1, Sertad1), a newly identified protein with poorly characterized functions, acts as an adaptor that bridges the interaction of multiple AC isoforms with X-linked inhibitor of apoptosis protein (XIAP), a RING-domain E3 ubiquitin ligase. XIAP ubiquitinates a highly conserved Lys residue in AC isoforms and thereby accelerates the endocytosis and degradation of multiple AC isoforms in human cell lines and mice. XIAP/TRIP-Br1-mediated degradation of ACs forms part of a negative-feedback loop that controls the homeostasis of cAMP signaling in mice. Our findings reveal a previously unrecognized mechanism for degrading multiple AC isoforms and modulating the homeostasis of cAMP signaling. DOI:http://dx.doi.org/10.7554/eLife.28021.001
Collapse
Affiliation(s)
- Wenbao Hu
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Xiaojie Yu
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Zhengzhao Liu
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Ying Sun
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Xibing Chen
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Xin Yang
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Xiaofen Li
- Division of Biomedical Engineering, Hong Kong University of Science and Technology, Hong Kong, China
| | - Wai Kwan Lam
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Yuanyuan Duan
- Division of Biomedical Engineering, Hong Kong University of Science and Technology, Hong Kong, China
| | - Xu Cao
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong, China
| | - Hermann Steller
- Strang Laboratory of Apoptosis and Cancer Biology, Howard Hughes Medical Institute, The Rockefeller University, New York, United States
| | - Kai Liu
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong, China.,State Key Laboratory of Molecular Neuroscience, Hong Kong University of Science and Technology, Hong Kong, China
| | - Pingbo Huang
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong, China.,Division of Biomedical Engineering, Hong Kong University of Science and Technology, Hong Kong, China.,State Key Laboratory of Molecular Neuroscience, Hong Kong University of Science and Technology, Hong Kong, China
| |
Collapse
|
21
|
Shrestha P, Yun JH, Ko YJ, Yeon KJ, Kim D, Lee H, Jin DH, Nam KY, Yoo HD, Lee W. NMR uncovers direct interaction between human NEDD4-1 and p34 SEI-1. Biochem Biophys Res Commun 2017; 490:984-990. [PMID: 28666866 DOI: 10.1016/j.bbrc.2017.06.151] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 06/26/2017] [Indexed: 11/30/2022]
Abstract
PTEN, an important tumor suppressor and a key regulator of the PI3K/AKT signaling pathway, is often deleted/mutated in different types of cancer. The E3 ubiquitin ligase NEDD4-1 catalyzes the polyubiquitination of PTEN, thereby acting as a negative regulator of PTEN. Stability of NEDD4-1, in turn, is tightly controlled by a 34 kDa oncoprotein, p34SEI-1 and it regulates PTEN degradation and activates PI3K/AKT pathway, resulting in cancer metastasis. p34SEI-1 affects not only the expression of NEDD4-1 during transcription and translation but also the subcellular localization of PTEN. This emphasizes the need to understand, at molecular level, the interaction between NEDD4-1 and p34SEI-1. A recent study showed that NEDD4-1 interacts with p34SEI-1 via its WWI domain. However, a detailed interaction for molecular level is yet unknown. We report that the WW1 domain of NEDD4-1 recognizes the SERTA domain containing the proline rich region (PRR motif) in p34SEI-1. TALOS analysis based on NMR data confirms three conserved β-sheets in NEDD4-1 WW1 and the central β-sheet of NEDD4-1 WW1 plays a role for protein stability by the backbone dynamics experiments. NMR titration data revealed the binding site for p34SEI-1 with NEDD4-1. Our data will provide insights into the molecular mechanism of NEDD4-1 and p34SEI-1 interaction, which will be directly used for drug design which inhibits the molecular interaction involved in different cancer signaling.
Collapse
Affiliation(s)
- Pravesh Shrestha
- Structural Biochemistry & Molecular Biophysics Laboratory, Department of Biochemistry, College of Life Sciences & Biotechnology, Yonsei University, Seoul 03722, Republic of Korea
| | - Ji-Hye Yun
- Structural Biochemistry & Molecular Biophysics Laboratory, Department of Biochemistry, College of Life Sciences & Biotechnology, Yonsei University, Seoul 03722, Republic of Korea
| | - Yoon-Joo Ko
- Nuclear Magnetic Resonance Laboratory, National Center for Inter-University Research Facilities, Seoul National University, Seoul 08826, Republic of Korea
| | - Kyu Jeong Yeon
- Chodang Pharmaceutical Research Institute, #75, Gongwon-ro, Guro-gu, Seoul, Republic of Korea
| | - Dooseop Kim
- Chodang Pharmaceutical Research Institute, #75, Gongwon-ro, Guro-gu, Seoul, Republic of Korea
| | - Heejong Lee
- Chodang Pharmaceutical Research Institute, #75, Gongwon-ro, Guro-gu, Seoul, Republic of Korea
| | - Dong-Hoon Jin
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 138-736, Seoul, Republic of Korea
| | - Ki-Yup Nam
- PharosI&BT Co., 38, Heungan-daero 427-gil, Dongan-gu, Anyang-si, Gyeonggi-do, Republic of Korea
| | - Hye Dong Yoo
- FUGENBiO Co., 6F, yongjin Bldg., 48, Yangjaecheon-ro 19-gil, Seocho-gu, Seoul, Republic of Korea
| | - Weontae Lee
- Structural Biochemistry & Molecular Biophysics Laboratory, Department of Biochemistry, College of Life Sciences & Biotechnology, Yonsei University, Seoul 03722, Republic of Korea.
| |
Collapse
|
22
|
Abstract
Sleep is essential for health and cognition, but the molecular and neural mechanisms of sleep regulation are not well understood. We recently reported the identification of TARANIS (TARA) as a sleep-promoting factor that acts in a previously unknown arousal center in Drosophila. tara mutants exhibit a dose-dependent reduction in sleep amount of up to ∼60%. TARA and its mammalian homologs, the Trip-Br (Transcriptional Regulators Interacting with PHD zinc fingers and/or Bromodomains) family of proteins, are primarily known as transcriptional coregulators involved in cell cycle progression, and contain a conserved Cyclin-A (CycA) binding homology domain. We found that tara and CycA synergistically promote sleep, and CycA levels are reduced in tara mutants. Additional data demonstrated that Cyclin-dependent kinase 1 (Cdk1) antagonizes tara and CycA to promote wakefulness. Moreover, we identified a subset of CycA expressing neurons in the pars lateralis, a brain region proposed to be analogous to the mammalian hypothalamus, as an arousal center. In this Extra View article, we report further characterization of tara mutants and provide an extended discussion of our findings and future directions within the framework of a working model, in which a network of cell cycle genes, tara, CycA, and Cdk1, interact in an arousal center to regulate sleep.
Collapse
Affiliation(s)
- Dinis J S Afonso
- a Department of Neuroscience ; the Farber Institute for Neurosciences; and Kimmel Cancer Center; Thomas Jefferson University ; Philadelphia , PA USA.,b Life and Health Sciences Research Institute (ICVS); School of Health Sciences; University of Minho ; 4710-057 Braga , Portugal.,c ICVS/3B's; PT Government Associate Laboratory ; 4710-057 Braga/Guimarães ; Portugal
| | - Daniel R Machado
- a Department of Neuroscience ; the Farber Institute for Neurosciences; and Kimmel Cancer Center; Thomas Jefferson University ; Philadelphia , PA USA.,b Life and Health Sciences Research Institute (ICVS); School of Health Sciences; University of Minho ; 4710-057 Braga , Portugal.,c ICVS/3B's; PT Government Associate Laboratory ; 4710-057 Braga/Guimarães ; Portugal
| | - Kyunghee Koh
- a Department of Neuroscience ; the Farber Institute for Neurosciences; and Kimmel Cancer Center; Thomas Jefferson University ; Philadelphia , PA USA
| |
Collapse
|
23
|
SEI1 induces genomic instability by inhibiting DNA damage response in ovarian cancer. Cancer Lett 2016; 385:271-279. [PMID: 27697611 DOI: 10.1016/j.canlet.2016.09.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Revised: 09/15/2016] [Accepted: 09/25/2016] [Indexed: 12/12/2022]
Abstract
Previous studies have shown that the oncogene SEI1 is highly expressed in ovarian carcinomas, and promoting genomic instability. However, the molecular mechanism of SEI1 in promoting genomic instability remains unclear. We observed SEI1 overexpression in 30 of 46 cases of ovarian cancer compared to non-tumor tissues and the overexpression of SEI1 was positively associated with the tumor FIGO stage. Our functional studies revealed that overexpression of SEI1 could induce genomic instability and increased DNA strand breaks. In contrast, SEI1 co-localized with γH2AX and phosphorylated ATM and DNAPKcs in the nucleus. Furthermore, we found that overexpression of SEI1 induced translocation of the SEI1 protein from the cytoplasm to the nucleus; ATM and DNAPKcs were associated with the cytoplasm-to-nucleus translocation of SEI1. To further prove the correlation between the DNA damage response (DDR) and SEI1, we knocked down SEI1 expression in SEI1-transfected ovarian cancer cell lines. The expression of DDR proteins was significantly downregulated, and the number of micronuclei was significantly decreased. Together, these results define a new mechanism of SEI1 in the regulation of genomic stability and in the malignant progression of ovarian cancer.
Collapse
|
24
|
Li C, Jung S, Lee S, Jeong D, Yang Y, Kim KI, Lim JS, Cheon CI, Kim C, Kang YS, Lee MS. Nutrient/serum starvation derived TRIP-Br3 down-regulation accelerates apoptosis by destabilizing XIAP. Oncotarget 2016; 6:7522-35. [PMID: 25691055 PMCID: PMC4480697 DOI: 10.18632/oncotarget.3112] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Accepted: 01/08/2015] [Indexed: 12/19/2022] Open
Abstract
TRIP-Br3 and TRIP-Br1 have shown to have important biological functions. However, the function of TRIP-Br3 in tumorigenesis is not well characterized compared to oncogenic TRIP-Br1. Here, we investigated the function of TRIP-Br3 in tumorigenesis by comparing with that of TRIP-Br1. Under nutrient/serum starvation, TRIP-Br3 expression was down-regulated slightly in cancer cells and significantly in normal cells. Unexpectedly, TRIP-Br1 expression was greatly up-regulated in cancer cells but not in normal cells. Moreover, TRIP-Br3 activated autophagy while TRIP-Br1 inactivated it under serum starvation. In spite of different expression and roles of TRIP-Br3 and TRIP-Br1, both of them alleviate cell death by directly binding to and stabilizing XIAP, a potent apoptosis inhibitor, through blocking its ubiquitination. Taken together, we propose that TRIP-Br3 primarily activates the autophagy and suppresses apoptosis in nutrient sufficient condition. However, the prolonged extreme stressful condition of nutrient starvation causes a dramatic decrease of TRIP-Br3, which in turn induces apoptosis by destabilizing XIAP. Up-regulated TRIP-Br1 in cancer cells compensates this effect and delays apoptosis. This can be explained by the competitive alternative binding of TRIP-Br3 and TRIP-Br1 to the BIR2 domain of XIAP. In an extended study, our immunohistochemical analysis revealed a markedly lower level of TRIP-Br3 protein in human carcinoma tissues compared to normal epithelial tissues, implying the role of TRIP-Br3 as a tumor suppressor rather than onco-protein.
Collapse
Affiliation(s)
- Chengping Li
- Department of Life Systems, Sookmyung Women's University, Seoul, 140-742, South Korea
| | - Samil Jung
- Department of Life Systems, Sookmyung Women's University, Seoul, 140-742, South Korea
| | - Soonduck Lee
- Department of Life Systems, Sookmyung Women's University, Seoul, 140-742, South Korea
| | - Dongjun Jeong
- Department of Pathology, College of Medicine, Soonchunhyang University, Chonan, 330-090, South Korea
| | - Young Yang
- Department of Life Systems, Sookmyung Women's University, Seoul, 140-742, South Korea
| | - Keun-Il Kim
- Department of Life Systems, Sookmyung Women's University, Seoul, 140-742, South Korea
| | - Jong-Seok Lim
- Department of Life Systems, Sookmyung Women's University, Seoul, 140-742, South Korea
| | - Chung-Il Cheon
- Department of Life Systems, Sookmyung Women's University, Seoul, 140-742, South Korea
| | - Changjin Kim
- Department of Pathology, College of Medicine, Soonchunhyang University, Chonan, 330-090, South Korea
| | - Young-Sook Kang
- College of Pharmacy, Sookmyung Women's University, Seoul, 140-742, South Korea
| | - Myeong-Sok Lee
- Department of Life Systems, Sookmyung Women's University, Seoul, 140-742, South Korea
| |
Collapse
|
25
|
Inhibitory role of TRIP-Br1 oncoprotein in hypoxia-induced apoptosis in breast cancer cell lines. Int J Oncol 2016; 48:2639-46. [PMID: 27035851 DOI: 10.3892/ijo.2016.3454] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Accepted: 02/18/2016] [Indexed: 11/05/2022] Open
Abstract
TRIP-Br1 oncoprotein is known to be involved in many vital cellular functions. In this study, we examined the role of TRIP-Br1 in hypoxia-induced cell death. Exposure to the overcrowded and CoCl2-induced hypoxic conditions increased TRIP-Br1 expression at the protein level in six breast cancer cell lines (MCF7, MDA-MB-231, T47D, Hs578D, BT549, and MDA-MB-435) but resulted in no significant change in three normal cell lines (MCF10A, MEF and NIH3T3). Our result revealed that CoCl2-induced hypoxia stimulated apoptosis and autophagy, in which TRIP-Br1 expression was found to be upregulated. Interestingly, TRIP-Br1 silencing in the MCF7 and MDA-MB-231 cancer cells accelerated apoptosis and destabilization of XIAP under the CoCl2-induced hypoxic condition, implying that TRIP-Br1 may render cancer cells resistant to apoptosis through the stabilization of XIAP. We also propose that TRIP-Br1 seems to be upregulated at least partly as a result of the inhibition of PI3K/AKT signaling pathway and the overexpression of HIF-1α. In conclusion, our findings suggest that TRIP-Br1 functions as an oncogenic protein by providing cancer cells resistance to the hypoxia-induced cell death.
Collapse
|
26
|
Brooks CR, Yeung MY, Brooks YS, Chen H, Ichimura T, Henderson JM, Bonventre JV. KIM-1-/TIM-1-mediated phagocytosis links ATG5-/ULK1-dependent clearance of apoptotic cells to antigen presentation. EMBO J 2015; 34:2441-64. [PMID: 26282792 DOI: 10.15252/embj.201489838] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 07/01/2015] [Indexed: 12/14/2022] Open
Abstract
Phagocytosis of apoptotic cells by both professional and semi-professional phagocytes is required for resolution of organ damage and maintenance of immune tolerance. KIM-1/TIM-1 is a phosphatidylserine receptor that is expressed on epithelial cells and can transform the cells into phagocytes. Here, we demonstrate that KIM-1 phosphorylation and association with p85 results in encapsulation of phagosomes by lipidated LC3 in multi-membrane organelles. KIM-1-mediated phagocytosis is not associated with increased ROS production, and NOX inhibition does not block LC3 lipidation. Autophagy gene expression is required for efficient clearance of apoptotic cells and phagosome maturation. KIM-1-mediated phagocytosis leads to pro-tolerogenic antigen presentation, which suppresses CD4 T-cell proliferation and increases the percentage of regulatory T cells in an autophagy gene-dependent manner. Taken together, these data reveal a novel mechanism of epithelial biology linking phagocytosis, autophagy and antigen presentation to regulation of the inflammatory response.
Collapse
Affiliation(s)
- Craig R Brooks
- Department of Medicine, Renal Division, Brigham and Women's Hospital Harvard Medical School, Boston, MA, USA
| | - Melissa Y Yeung
- Department of Medicine, Renal Division, Brigham and Women's Hospital Harvard Medical School, Boston, MA, USA Transplantation Research Center, Brigham and Women's Hospital Harvard Medical School, Boston, MA, USA
| | - Yang S Brooks
- Cutaneous Biology Research Center, Massachusetts General Hospital, Charlestown, MA, USA Department of Dermatology, Harvard Medical School, Boston, MA, USA
| | - Hui Chen
- Department of Pathology and Laboratory Medicine, Boston University School of Medicine, Boston, MA, USA
| | - Takaharu Ichimura
- Department of Medicine, Renal Division, Brigham and Women's Hospital Harvard Medical School, Boston, MA, USA
| | - Joel M Henderson
- Department of Pathology and Laboratory Medicine, Boston University School of Medicine, Boston, MA, USA
| | - Joseph V Bonventre
- Department of Medicine, Renal Division, Brigham and Women's Hospital Harvard Medical School, Boston, MA, USA Harvard Stem Cell Institute, Cambridge, MA, USA
| |
Collapse
|
27
|
Wu MY, Liang RR, Chen K, Shen M, Tian YL, Li DM, Duan WM, Gui Q, Gong FR, Lian L, Li W, Tao M. FH535 inhibited metastasis and growth of pancreatic cancer cells. Onco Targets Ther 2015; 8:1651-70. [PMID: 26185454 PMCID: PMC4500609 DOI: 10.2147/ott.s82718] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
FH535 is a small-molecule inhibitor of the Wnt/β-catenin signaling pathway, which a substantial body of evidence has proven is activated in various cancers, including pancreatic cancer. Activation of the Wnt/β-catenin pathway plays an important role in tumor progression and metastasis. We investigated the inhibitory effect of FH535 on the metastasis and growth of pancreatic cancer cells. Western blotting and luciferase reporter gene assay indicated that FH535 markedly inhibited Wnt/β-catenin pathway viability in pancreatic cancer cells. In vitro wound healing, invasion, and adhesion assays revealed that FH535 significantly inhibited pancreatic cancer cell metastasis. We also observed the inhibitory effect of FH535 on pancreatic cancer cell growth via the tetrazolium and plate clone formation assays. Microarray analyses suggested that changes in the expression of multiple genes could be involved in the anti-cancer effect of FH535 on pancreatic cancer cells. Our results indicate for the first time that FH535 inhibits pancreatic cancer cell metastasis and growth, providing new insight into therapy of pancreatic cancer.
Collapse
Affiliation(s)
- Meng-Yao Wu
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou Xiangcheng People's Hospital, Suzhou, People's Republic of China
| | - Rong-Rui Liang
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou Xiangcheng People's Hospital, Suzhou, People's Republic of China
| | - Kai Chen
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou Xiangcheng People's Hospital, Suzhou, People's Republic of China
| | - Meng Shen
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou Xiangcheng People's Hospital, Suzhou, People's Republic of China
| | - Ya-Li Tian
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou Xiangcheng People's Hospital, Suzhou, People's Republic of China ; Department of Oncology, Suzhou Xiangcheng People's Hospital, Suzhou, People's Republic of China
| | - Dao-Ming Li
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou Xiangcheng People's Hospital, Suzhou, People's Republic of China
| | - Wei-Ming Duan
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou Xiangcheng People's Hospital, Suzhou, People's Republic of China
| | - Qi Gui
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou Xiangcheng People's Hospital, Suzhou, People's Republic of China
| | - Fei-Ran Gong
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China
| | - Lian Lian
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou Xiangcheng People's Hospital, Suzhou, People's Republic of China ; Department of Oncology, Suzhou Xiangcheng People's Hospital, Suzhou, People's Republic of China
| | - Wei Li
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou Xiangcheng People's Hospital, Suzhou, People's Republic of China ; PREMED Key Laboratory for Precision Medicine, Soochow University, Suzhou, People's Republic of China
| | - Min Tao
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou Xiangcheng People's Hospital, Suzhou, People's Republic of China ; Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, People's Republic of China ; Institute of Medical Biotechnology, Soochow University, Suzhou, People's Republic of China ; PREMED Key Laboratory for Precision Medicine, Soochow University, Suzhou, People's Republic of China
| |
Collapse
|
28
|
Taranis Protects Regenerating Tissue from Fate Changes Induced by the Wound Response in Drosophila. Dev Cell 2015; 34:119-28. [DOI: 10.1016/j.devcel.2015.04.017] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 02/25/2015] [Accepted: 04/23/2015] [Indexed: 12/15/2022]
|
29
|
Afonso DJS, Liu D, Machado DR, Pan H, Jepson JEC, Rogulja D, Koh K. TARANIS Functions with Cyclin A and Cdk1 in a Novel Arousal Center to Control Sleep in Drosophila. Curr Biol 2015; 25:1717-26. [PMID: 26096977 DOI: 10.1016/j.cub.2015.05.037] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Revised: 04/20/2015] [Accepted: 05/19/2015] [Indexed: 12/22/2022]
Abstract
Sleep is an essential and conserved behavior whose regulation at the molecular and anatomical level remains to be elucidated. Here, we identify TARANIS (TARA), a Drosophila homolog of the Trip-Br (SERTAD) family of transcriptional coregulators, as a molecule that is required for normal sleep patterns. Through a forward-genetic screen, we isolated tara as a novel sleep gene associated with a marked reduction in sleep amount. Targeted knockdown of tara suggests that it functions in cholinergic neurons to promote sleep. tara encodes a conserved cell-cycle protein that contains a Cyclin A (CycA)-binding homology domain. TARA regulates CycA protein levels and genetically and physically interacts with CycA to promote sleep. Furthermore, decreased levels of Cyclin-dependent kinase 1 (Cdk1), a kinase partner of CycA, rescue the short-sleeping phenotype of tara and CycA mutants, while increased Cdk1 activity mimics the tara and CycA phenotypes, suggesting that Cdk1 mediates the role of TARA and CycA in sleep regulation. Finally, we describe a novel wake-promoting role for a cluster of ∼14 CycA-expressing neurons in the pars lateralis (PL), previously proposed to be analogous to the mammalian hypothalamus. We propose that TARANIS controls sleep amount by regulating CycA protein levels and inhibiting Cdk1 activity in a novel arousal center.
Collapse
Affiliation(s)
- Dinis J S Afonso
- Department of Neuroscience, Farber Institute for Neurosciences and Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, 4710-057 Braga, Portugal; ICVS/3B's, PT Government Associate Laboratory, 4710-057 Braga/Guimarães, Portugal
| | - Die Liu
- Department of Neuroscience, Farber Institute for Neurosciences and Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Daniel R Machado
- Department of Neuroscience, Farber Institute for Neurosciences and Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, 4710-057 Braga, Portugal; ICVS/3B's, PT Government Associate Laboratory, 4710-057 Braga/Guimarães, Portugal
| | - Huihui Pan
- Department of Neuroscience, Farber Institute for Neurosciences and Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - James E C Jepson
- Department of Neuroscience, Farber Institute for Neurosciences and Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Dragana Rogulja
- Department of Neurobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Kyunghee Koh
- Department of Neuroscience, Farber Institute for Neurosciences and Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA.
| |
Collapse
|
30
|
Transcriptome Profiling of the Virus-Induced Innate Immune Response in Pteropus vampyrus and Its Attenuation by Nipah Virus Interferon Antagonist Functions. J Virol 2015; 89:7550-66. [PMID: 25972557 DOI: 10.1128/jvi.00302-15] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 05/02/2015] [Indexed: 12/13/2022] Open
Abstract
UNLABELLED Bats are important reservoirs for several viruses, many of which cause lethal infections in humans but have reduced pathogenicity in bats. As the innate immune response is critical for controlling viruses, the nature of this response in bats and how it may differ from that in other mammals are of great interest. Using next-generation transcriptome sequencing (mRNA-seq), we profiled the transcriptional response of Pteropus vampyrus bat kidney (PVK) cells to Newcastle disease virus (NDV), an avian paramyxovirus known to elicit a strong innate immune response in mammalian cells. The Pteropus genus is a known reservoir of Nipah virus (NiV) and Hendra virus (HeV). Analysis of the 200 to 300 regulated genes showed that genes for interferon (IFN) and antiviral pathways are highly upregulated in NDV-infected PVK cells, including genes for beta IFN, RIG-I, MDA5, ISG15, and IRF1. NDV-infected cells also upregulated several genes not previously characterized to be antiviral, such as RND1, SERTAD1, CHAC1, and MORC3. In fact, we show that MORC3 is induced by both IFN and NDV infection in PVK cells but is not induced by either stimulus in human A549 cells. In contrast to NDV infection, HeV and NiV infection of PVK cells failed to induce these innate immune response genes. Likewise, an attenuated response was observed in PVK cells infected with recombinant NDVs expressing the NiV IFN antagonist proteins V and W. This study provides the first global profile of a robust virus-induced innate immune response in bats and indicates that henipavirus IFN antagonist mechanisms are likely active in bat cells. IMPORTANCE Bats are the reservoir host for many highly pathogenic human viruses, including henipaviruses, lyssaviruses, severe acute respiratory syndrome coronavirus, and filoviruses, and many other viruses have also been isolated from bats. Viral infections are reportedly asymptomatic or heavily attenuated in bat populations. Despite their ecological importance to viral maintenance, research into their immune system and mechanisms for viral control has only recently begun. Nipah virus and Hendra virus are two paramyxoviruses associated with high mortality rates in humans and whose reservoir is the Pteropus genus of bats. Greater knowledge of the innate immune response of P. vampyrus bats to viral infection may elucidate how bats serve as a reservoir for so many viruses.
Collapse
|
31
|
Gong W, Gohla RM, Bowlin KM, Koyano-Nakagawa N, Garry DJ, Shi X. Kelch Repeat and BTB Domain Containing Protein 5 (Kbtbd5) Regulates Skeletal Muscle Myogenesis through the E2F1-DP1 Complex. J Biol Chem 2015; 290:15350-61. [PMID: 25940086 DOI: 10.1074/jbc.m114.629956] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Indexed: 01/14/2023] Open
Abstract
We have previously isolated a muscle-specific Kelch gene, Kelch repeat and BTB domain containing protein 5 (Kbtbd5)/Kelch-like protein 40 (Klhl40). In this report, we identified DP1 as a direct interacting factor for Kbtbd5 using a yeast two-hybrid screen and in vitro binding assays. Our studies demonstrate that Kbtbd5 interacts and regulates the cytoplasmic localization of DP1. GST pulldown assays demonstrate that the dimerization domain of DP1 interacts with all three of the Kbtbd5 domains. We further show that Kbtbd5 promotes the ubiquitination and degradation of DP1, thereby inhibiting E2F1-DP1 activity. To investigate the in vivo function of Kbtbd5, we used gene disruption technology and engineered Kbtbd5 null mice. Targeted deletion of Kbtbd5 resulted in postnatal lethality. Histological studies reveal that the Kbtbd5 null mice have smaller muscle fibers, a disorganized sarcomeric structure, increased extracellular matrix, and decreased numbers of mitochondria compared with wild-type controls. RNA sequencing and quantitative PCR analyses demonstrate the up-regulation of E2F1 target apoptotic genes (Bnip3 and p53inp1) in Kbtbd5 null skeletal muscle. Consistent with these observations, the cellular apoptosis in Kbtbd5 null mice was increased. Breeding of Kbtbd5 null mouse into the E2F1 null background rescues the lethal phenotype of the Kbtbd5 null mice but not the growth defect. The expression of Bnip3 and p53inp1 in Kbtbd5 mutant skeletal muscle are also restored to control levels in the E2F1 null background. In summary, our studies demonstrate that Kbtbd5 regulates skeletal muscle myogenesis through the regulation of E2F1-DP1 activity.
Collapse
Affiliation(s)
- Wuming Gong
- From the Lillehei Heart Institute, University of Minnesota-Twin Cities, Minneapolis Minnesota 55455
| | - Rachel M Gohla
- From the Lillehei Heart Institute, University of Minnesota-Twin Cities, Minneapolis Minnesota 55455
| | - Kathy M Bowlin
- From the Lillehei Heart Institute, University of Minnesota-Twin Cities, Minneapolis Minnesota 55455
| | - Naoko Koyano-Nakagawa
- From the Lillehei Heart Institute, University of Minnesota-Twin Cities, Minneapolis Minnesota 55455
| | - Daniel J Garry
- From the Lillehei Heart Institute, University of Minnesota-Twin Cities, Minneapolis Minnesota 55455
| | - Xiaozhong Shi
- From the Lillehei Heart Institute, University of Minnesota-Twin Cities, Minneapolis Minnesota 55455
| |
Collapse
|
32
|
Yang L, Brooks CR, Xiao S, Sabbisetti V, Yeung MY, Hsiao LL, Ichimura T, Kuchroo V, Bonventre JV. KIM-1-mediated phagocytosis reduces acute injury to the kidney. J Clin Invest 2015; 125:1620-36. [PMID: 25751064 DOI: 10.1172/jci75417] [Citation(s) in RCA: 225] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 01/22/2015] [Indexed: 12/13/2022] Open
Abstract
Kidney injury molecule 1 (KIM-1, also known as TIM-1) is markedly upregulated in the proximal tubule after injury and is maladaptive when chronically expressed. Here, we determined that early in the injury process, however, KIM-1 expression is antiinflammatory due to its mediation of phagocytic processes in tubule cells. Using various models of acute kidney injury (AKI) and mice expressing mutant forms of KIM-1, we demonstrated a mucin domain-dependent protective effect of epithelial KIM-1 expression that involves downregulation of innate immunity. Deletion of the mucin domain markedly impaired KIM-1-mediated phagocytic function, resulting in increased proinflammatory cytokine production, decreased antiinflammatory growth factor secretion by proximal epithelial cells, and a subsequent increase in tissue macrophages. Mice expressing KIM-1Δmucin had greater functional impairment, inflammatory responses, and mortality in response to ischemia- and cisplatin-induced AKI. Compared with primary renal proximal tubule cells isolated from KIM-1Δmucin mice, those from WT mice had reduced proinflammatory cytokine secretion and impaired macrophage activation. The antiinflammatory effect of KIM-1 expression was due to the interaction of KIM-1 with p85 and subsequent PI3K-dependent downmodulation of NF-κB. Hence, KIM-1-mediated epithelial cell phagocytosis of apoptotic cells protects the kidney after acute injury by downregulating innate immunity and inflammation.
Collapse
|
33
|
Lee S, Kim J, Jung S, Li C, Yang Y, Kim KI, Lim JS, Kim Y, Cheon CI, Lee MS. SIAH1-induced p34SEI-1 polyubiquitination/degradation mediates p53 preferential vitamin C cytotoxicity. Int J Oncol 2015; 46:1377-84. [PMID: 25586269 DOI: 10.3892/ijo.2015.2840] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 11/26/2014] [Indexed: 11/06/2022] Open
Abstract
Vitamin C is considered as an important anticancer therapeutic agent although this view is debatable. In this study, we introduce a physiological mechanism demonstrating how vitamin C exerts anticancer activity that induces cell cycle arrest and apoptosis. Our previous and current data reveal that p53 tumor suppressor is the prerequisite factor for stronger anticancer effects of vitamin C. In addition, vitamin C-mediated cancer cell cytotoxicity appears to be achieved at least partly through the downregulation of the p34SEI-1 oncoprotein. Our previous study showed that p34SEI-1 increases the survival of various types of cancer cells by inhibiting their apoptosis. Present data suggest that vitamin C treatment decreases the p34SEI-1 expression at the protein level and therefore alleviates its anti-apoptotic activity. Of note, SIAH1, E3 ubiquitin ligase, appears to be responsible for the p34SEI-1 polyubiquitination and its subsequent degradation, which is dependent on p53. In summary, vitamin C increases cancer cell death by inducing SIAH1-mediated polyubiquitination/degradation of the p34SEI-1 oncoprotein in a p53-dependent manner.
Collapse
Affiliation(s)
- Soonduck Lee
- Department of Life Systems, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Jinsun Kim
- Department of Life Systems, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Samil Jung
- Department of Life Systems, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Chengping Li
- Department of Life Systems, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Young Yang
- Department of Life Systems, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Keun Il Kim
- Department of Life Systems, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Jong-Seok Lim
- Department of Life Systems, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Yonghwan Kim
- Department of Life Systems, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Choong-Il Cheon
- Department of Life Systems, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Myeong-Sok Lee
- Department of Life Systems, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| |
Collapse
|
34
|
Poi MJ, Knobloch TJ, Sears MT, Uhrig LK, Warner BM, Weghorst CM, Li J. Coordinated expression of cyclin-dependent kinase-4 and its regulators in human oral tumors. Anticancer Res 2014; 34:3285-3292. [PMID: 24982332 PMCID: PMC4183149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND/AIM While aberrant expression of cyclin-dependent kinase-4 (CDK4) has been found in squamous cell carcinoma of the head and neck (SCCHN), the associations between CDK4 and its regulators, namely, cyclin D1, cyclin E, gankyrin, SEI1, and BMI1 in gene expression remain to be explored. Herein we investigated the mRNA profiles of these oncogenes and their interrelations in different oral lesion tissues. MATERIALS AND METHODS Thirty SCCHN specimens and patient-matched high at-risk mucosa (HARM) and 16 healthy control specimens were subjected to quantitative reverse transcription-polymerase chain reaction (qRT-PCR) analyses. RESULTS The mRNA levels of CDK4, cyclin D1, gankyrin, SEI1, BMI1 were significantly elevated in both HARM and SCCHN (in comparison with control specimens), and statistically significant correlations were found among these markers in gene expression. CONCLUSION Up-regulation of CDK4 and its regulators takes place in oral cancer progression in a coordinate manner, and HARM and SCCHN share a similar molecular signature within the CDK4-pRB pathway.
Collapse
Affiliation(s)
- Ming J Poi
- Department of Pharmacy, The Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, Columbus, OH, U.S.A Division of Pharmacy Practice and Administration, College of Pharmacy, The Ohio State University, Columbus, OH, U.S.A
| | - Thomas J Knobloch
- Division of Environmental Health Sciences, College of Public Health, The Ohio State University, Columbus, OH, U.S.A Comprehensive Cancer Center, The Ohio State University, Columbus, OH, U.S.A
| | - Marta T Sears
- Division of Environmental Health Sciences, College of Public Health, The Ohio State University, Columbus, OH, U.S.A
| | - Lana K Uhrig
- Division of Environmental Health Sciences, College of Public Health, The Ohio State University, Columbus, OH, U.S.A
| | - Blake M Warner
- Division of Environmental Health Sciences, College of Public Health, The Ohio State University, Columbus, OH, U.S.A College of Dentistry, The Ohio State University, Columbus, OH, U.S.A
| | - Christopher M Weghorst
- Division of Environmental Health Sciences, College of Public Health, The Ohio State University, Columbus, OH, U.S.A Comprehensive Cancer Center, The Ohio State University, Columbus, OH, U.S.A Department of Otolaryngology-Head and Neck Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, U.S.A
| | - Junan Li
- Division of Environmental Health Sciences, College of Public Health, The Ohio State University, Columbus, OH, U.S.A Comprehensive Cancer Center, The Ohio State University, Columbus, OH, U.S.A
| |
Collapse
|
35
|
Jung S, Ohk J, Jeong D, Li C, Lee S, Duan J, Kim C, Lim JS, Yang Y, Kim KI, Lee MS. Distinct regulatory effect of the p34SEI-1 oncoprotein on cancer metastasis in HER2/neu-positive and -negative cells. Int J Oncol 2014; 45:189-96. [PMID: 24789658 DOI: 10.3892/ijo.2014.2403] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Accepted: 03/26/2014] [Indexed: 11/05/2022] Open
Abstract
The p34(SEI-1) oncoprotein is involved in a transcriptional regulation, cell cycle regulation, apoptosis, development and many other important cellular functions. Our present study suggests that p34(SEI-1) can promote metastasis by enhancing migration and invasion of cancer cells. Consistently, p34(SEI-1) expression was found to be increased as the tumor invasiveness progressed in human breast tissues. p34(SEI-1) may promote cancer metastasis by activating the PI3K/AKT signaling pathway. In this process, p34(SEI-1) activates two different serine/threonine kinases, AKT or ILK, depending on the expression status of HER2/neu oncogene. In HER2/neu suppressed cancer cells, p34(SEI-1) promoted metastasis mainly by activating AKT via phosphorylation of the 473 serine residue. In HER2/neu expressing cancer cells, p34(SEI-1) overexpression downregulates HER2/neu expression, leading to the activation of another crucial serine/threonine kinase ILK due to phosphorylation of the 178 threonine residue instead of AKT. These results suggest that p34(SEI-1) affects cancer metastasis by regulating two different signaling pathways depending on the HER2/neu expression level, in which AKT and ILK modulation can be stimulated by p34(SEI-1) overexpression.
Collapse
Affiliation(s)
- Samil Jung
- Department of Biological Science and Research Center for Women's Diseases, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Jiyeon Ohk
- Department of Biological Science and Research Center for Women's Diseases, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Dongjun Jeong
- Department of Pathology, College of Medicine, Soonchunhyang University, Chonan 330-090, Republic of Korea
| | - Chengping Li
- Department of Biological Science and Research Center for Women's Diseases, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Soonduck Lee
- Department of Biological Science and Research Center for Women's Diseases, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Jingjing Duan
- Department of Biological Science and Research Center for Women's Diseases, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Changjin Kim
- Department of Pathology, College of Medicine, Soonchunhyang University, Chonan 330-090, Republic of Korea
| | - Jong-Seok Lim
- Department of Biological Science and Research Center for Women's Diseases, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Young Yang
- Department of Biological Science and Research Center for Women's Diseases, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Keun-Il Kim
- Department of Biological Science and Research Center for Women's Diseases, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Myeong-Sok Lee
- Department of Biological Science and Research Center for Women's Diseases, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| |
Collapse
|
36
|
Sertad1 encodes a novel transcriptional co-activator of SMAD1 in mouse embryonic hearts. Biochem Biophys Res Commun 2013; 441:751-6. [PMID: 24211589 DOI: 10.1016/j.bbrc.2013.10.127] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Accepted: 10/23/2013] [Indexed: 02/06/2023]
Abstract
Despite considerable advances in surgical repairing procedures, congenital heart diseases (CHDs) remain the leading noninfectious cause of infant morbidity and mortality. Understanding the molecular/genetic mechanisms underlying normal cardiogenesis will provide essential information for the development of novel diagnostic and therapeutic strategies against CHDs. BMP signaling plays complex roles in multiple cardiogenic processes in mammals. SMAD1 is a canonical nuclear mediator of BMP signaling, the activity of which is critically regulated through its interaction partners. We screened a mouse embryonic heart yeast two-hybrid library using Smad1 as bait and identified SERTAD1 as a novel interaction partner of SMAD1. SERTAD1 contains multiple potential functional domains, including two partially overlapping transactivation domains at the C terminus. The SERTAD1-SMAD1 interaction in vitro and in mammalian cells was further confirmed through biochemical assays. The expression of Sertad1 in developing hearts was demonstrated using RT-PCR, western blotting and in situ hybridization analyses. We also showed that SERTAD1 was localized in both the cytoplasm and nucleus of immortalized cardiomyocytes and primary embryonic cardiomyocyte cultures. The overexpression of SERTAD1 in cardiomyocytes not only enhanced the activity of two BMP reporters in a dose-dependent manner but also increased the expression of several known BMP/SMAD regulatory targets. Therefore, these data suggest that SERTAD1 acts as a SMAD1 transcriptional co-activator to promote the expression of BMP target genes during mouse cardiogenesis.
Collapse
|
37
|
Hong SW, Moon JH, Kim JS, Shin JS, Jung KA, Lee WK, Jeong SY, Hwang JJ, Lee SJ, Suh YA, Kim I, Nam KY, Han S, Kim JE, Kim KP, Hong YS, Lee JL, Lee WJ, Choi EK, Lee JS, Jin DH, Kim TW. p34 is a novel regulator of the oncogenic behavior of NEDD4-1 and PTEN. Cell Death Differ 2013; 21:146-60. [PMID: 24141722 DOI: 10.1038/cdd.2013.141] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Revised: 07/04/2013] [Accepted: 07/31/2013] [Indexed: 11/09/2022] Open
Abstract
PTEN is one of the most frequently mutated or deleted tumor suppressors in human cancers. NEDD4-1 was recently identified as the E3 ubiquitin ligase for PTEN; however, a number of important questions remain regarding the role of ubiquitination in regulating PTEN function and the mechanisms by which PTEN ubiquitination is regulated. In the present study, we demonstrated that p34, which was identified as a binding partner of NEDD4-1, controls PTEN ubiquitination by regulating NEDD4-1 protein stability. p34 interacts with the WW1 domain of NEDD4-1, an interaction that enhances NEDD4-1 stability. Expression of p34 promotes PTEN poly-ubiquitination, leading to PTEN protein degradation, whereas p34 knockdown results in PTEN mono-ubiquitination. Notably, an inverse correlation between PTEN and p34/NEDD4-1 levels was confirmed in tumor samples from colon cancer patients. Thus, p34 acts as a key regulator of the oncogenic behavior of NEDD4-1 and PTEN.
Collapse
Affiliation(s)
- S-W Hong
- 1] Innovative Cancer Research, Asan Medical Center, Asan Institute for Life Science, University of Ulsan College of Medicine, Seoul, Republic of Korea [2] Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Jung S, Li C, Jeong D, Lee S, Ohk J, Park M, Han S, Duan J, Kim C, Yang Y, Kim KI, Lim JS, Kang YS, Lee MS. Oncogenic function of p34SEI-1 via NEDD4‑1‑mediated PTEN ubiquitination/degradation and activation of the PI3K/AKT pathway. Int J Oncol 2013; 43:1587-95. [PMID: 23970032 DOI: 10.3892/ijo.2013.2064] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Accepted: 07/26/2013] [Indexed: 11/05/2022] Open
Abstract
A 34-KD protein encoded by the SEI-1 gene (p34(SEI‑1)), is a relatively recently discovered oncoprotein that has multiple important biological functions. Our data show that p34(SEI-1) enhances cancer cell survival and promotes tumorigenesis by downregulating the tumor suppressor PTEN, a negative regulator of the PI3K/AKT signaling pathway, and therefore activating the PI3K/AKT signaling pathway. In this process, p34(SEI-1) positively affects NEDD4-1 gene expression both at the transcriptional and protein levels. Furthermore, the expression levels of p34(SEI-1) and NEDD4-1 were found to be coordinated in tumor tissues obtained from patients with breast cancer. We also show that p34(SEI-1) affects the subcellular localization of PTEN.
Collapse
Affiliation(s)
- Samil Jung
- Department of Biological Science and Research Center for Women's Diseases, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Manansala MC, Min S, Cleary MD. The Drosophila SERTAD protein Taranis determines lineage-specific neural progenitor proliferation patterns. Dev Biol 2013; 376:150-62. [PMID: 23376107 DOI: 10.1016/j.ydbio.2013.01.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Revised: 01/09/2013] [Accepted: 01/23/2013] [Indexed: 11/19/2022]
Abstract
Neural progenitors of the Drosophila larval brain, called neuroblasts, can be divided into distinct populations based on patterns of proliferation and differentiation. Type I neuroblasts produce ganglion mother cells (GMCs) that divide once to produce differentiated progeny, while type II neuroblasts produce self-renewing intermediate neural progenitors (INPs) and thus generate lineages containing many more progeny. We identified Taranis (Tara) as an important determinant of type I lineage-specific neural progenitor proliferation patterns. Tara is an ortholog of mammalian SERTAD proteins that are known to regulate cell cycle progression. Tara is differentially-expressed in neural progenitors, with high levels of expression in proliferating type I neuroblasts but no detectable expression in type II lineage INPs. Tara is necessary for cell cycle reactivation in quiescent neuroblasts and for cell cycle progression in type I lineages. Cell cycle defects in tara mutant neuroblasts are due to decreased activation of the E2F1/Dp transcription factor complex and delayed progression through S-phase. Mis-expression of tara in type II lineages delays INP cell cycle progression and induces premature differentiation of INPs into GMCs. Premature INP differentiation can also be induced by loss of E2F1/Dp function and elevated E2F1/Dp expression suppresses Tara-induced INP differentiation. Our results show that lineage-specific Tara expression is necessary for proper brain development and suggest that distinct cell cycle regulatory mechanisms exist in type I versus type II neural progenitors.
Collapse
Affiliation(s)
- Miguel C Manansala
- School of Natural Sciences, University of California, Merced, CA 95343, USA
| | | | | |
Collapse
|
40
|
Ablation of TRIP-Br2, a regulator of fat lipolysis, thermogenesis and oxidative metabolism, prevents diet-induced obesity and insulin resistance. Nat Med 2013; 19:217-26. [PMID: 23291629 PMCID: PMC3567215 DOI: 10.1038/nm.3056] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Accepted: 11/19/2012] [Indexed: 12/14/2022]
Abstract
Obesity develops due to altered energy homeostasis favoring fat storage. Here we describe a novel transcription co-regulator for adiposity and energy metabolism, TRIP-Br2 (also called SERTAD2). TRIP-Br2 null mice are resistant to obesity and obesity-related insulin resistance. Adipocytes of the knockout (KO) mice exhibited greater stimulated lipolysis secondary to enhanced expression of hormone sensitive lipase (HSL) and β3-adrenergic (Adrb3) receptors. The KOs also exhibit higher energy expenditure due to increased adipocyte thermogenesis and oxidative metabolism by up-regulating key enzymes in respective processes. Our data show for the first time that a cell cycle transcriptional co-regulator, TRIP-Br2, modulates fat storage through simultaneous regulation of lipolysis, thermogenesis and oxidative metabolism. These data together with the observation that TRIP-BR2 expression is selectively elevated in visceral fat in obese humans suggests that this transcriptional co-regulator is a novel therapeutic target for counteracting the development of obesity, insulin resistance and hyperlipidemia.
Collapse
|
41
|
Abstract
Host cell factor-1(HCF-1) was first discovered as a cellular cofactor in the VP16-induced complex, a multi-protein DNA complex that forms on immediate early gene promoters of herpes simplex virus (HSV) to activate viral gene transcription. Subsequent research has revealed HCF-1 to be an abundant chromatin-associated protein that regulates various stages of the cell cycle. Recent reports show that HCF-1 interacts with diverse E2F proteins to induce cell-cycle-specific transcription. HCF-1 can act as a scaffold to a variety of histone-modifying proteins and these HCF-1-E2F-containing multi-protein complexes can bring about context-dependent activation or repression of transcription. In this review we examine the diversity of HCF-E2F interactions and the variety of multi-protein complexes it occurs in, to influence the local chromatin landscape at the E2F-promoters.
Collapse
Affiliation(s)
- Zaffer Zargar
- Centre for DNA Fingerprinting and Diagnostics, Hyderabad , India
| | | |
Collapse
|
42
|
Lasham A, Samuel W, Cao H, Patel R, Mehta R, Stern JL, Reid G, Woolley AG, Miller LD, Black MA, Shelling AN, Print CG, Braithwaite AW. YB-1, the E2F pathway, and regulation of tumor cell growth. J Natl Cancer Inst 2011; 104:133-46. [PMID: 22205655 DOI: 10.1093/jnci/djr512] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Y-box binding factor 1 (YB-1) has been associated with prognosis in many tumor types. Reduced YB-1 expression inhibits tumor cell growth, but the mechanism is unclear. METHODS YB-1 mRNA levels were compared with tumor grade and histology using microarray data from 771 breast cancer patients and with disease-free survival and distant metastasis-free survival using data from 375 of those patients who did not receive adjuvant therapy. Microarrays were further searched for genes that had correlated expression with YB-1 mRNA. Small interfering RNA (siRNA) was used to study the effects of reduced YB-1 expression on growth of three tumor cell lines (MCF-7 breast, HCT116 colon, and A549 lung cancer cells), on tumorigenesis by A549 cells in nude mice, and on global transcription in the three cancer cell lines. Reporter gene assays were used to determine whether YB-1 siRNAs affected the expression of E2F1, and chromatin immunoprecipitation was used to determine whether YB-1 bound to various E2F promoters as well as E2F1-regulated promoters. All P values were from two-sided tests. RESULTS YB-1 levels were elevated in more aggressive tumors and were strongly associated with poor disease-free survival and distant metastasis-free survival. YB-1 expression was often associated with the expression of genes with E2F sites in their promoters. Cells expressing YB-1 siRNA grew substantially more slowly than control cells and formed tumors less readily in nude mice. Transcripts that were altered in cancer cell lines with YB-1 siRNA included 32 genes that are components of prognostic gene expression signatures. YB-1 regulated expression of an E2F1 promoter-reporter construct in A549 cells (eg, relative E2F1 promoter activity with control siRNA = 4.04; with YB-1 siRNA = 1.40, difference= -2.64, 95% confidence interval = -3.57 to -1.71, P < .001) and bound to the promoters of several well-defined E2F1 target genes. CONCLUSION YB-1 expression is associated with the activity of E2F transcription factors and may control tumor cell growth by this mechanism.
Collapse
Affiliation(s)
- Annette Lasham
- Department of Molecular Medicine and Pathology, School of Medical Sciences, University of Auckland, Auckland, New Zealand.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Li J, Poi MJ, Tsai MD. Regulatory mechanisms of tumor suppressor P16(INK4A) and their relevance to cancer. Biochemistry 2011; 50:5566-82. [PMID: 21619050 PMCID: PMC3127263 DOI: 10.1021/bi200642e] [Citation(s) in RCA: 219] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
P16(INK4A) (also known as P16 and MTS1), a protein consisting exclusively of four ankyrin repeats, is recognized as a tumor suppressor mainly because of the prevalence of genetic inactivation of the p16(INK4A) (or CDKN2A) gene in virtually all types of human cancers. However, it has also been shown that an elevated level of expression (upregulation) of P16 is involved in cellular senescence, aging, and cancer progression, indicating that the regulation of P16 is critical for its function. Here, we discuss the regulatory mechanisms of P16 function at the DNA level, the transcription level, and the posttranscriptional level, as well as their implications for the structure-function relationship of P16 and for human cancers.
Collapse
Affiliation(s)
- Junan Li
- Division of Environmental Health Sciences, College of Public Health, The Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, Ohio 43210, USA.
| | | | | |
Collapse
|
44
|
Kusano S, Shiimura Y, Eizuru Y. I-mfa domain proteins specifically interact with SERTA domain proteins and repress their transactivating functions. Biochimie 2011; 93:1555-64. [PMID: 21664411 DOI: 10.1016/j.biochi.2011.05.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2010] [Accepted: 05/20/2011] [Indexed: 11/28/2022]
Abstract
The I-mfa domain proteins I-mfa and HIC are considered to be candidate tumor suppressor genes and have been shown to be involved in transcriptional regulation. We show here that I-mfa and HIC specifically interact with SEI-1 through their C-terminal I-mfa domains in vivo. This interaction affects the intracellular localization of I-mfa and requires the region of SEI-1 between 30 and 90 amino acids, which includes its SERTA domain, and results in repression of its intrinsic transcriptional activity. I-mfa also decreases the levels of the SEI-1·DP-1 complex and endogenous Fbxw7 mRNA, the expression of which is coregulated by E2F·DP-1 and SEI-1 in an interaction-dependent manner in vitro. In addition, I-mfa also specifically interacts with other SERTA domain-containing proteins, including SEI-2, SEI-3, SERTAD3 and SERTAD4, through its I-mfa domain in vivo. This interaction also affects the intracellular localization of I-mfa and represses the intrinsic transcriptional activities of SEI-2 and SERTAD3, which are also involved in the E2F-dependent transcription. These data reveal for the first time that I-mfa domain proteins interact with SERTA domain proteins and negatively regulate their transcriptional activity. Because SEI-1, SEI-2 and SERTAD3, whose intrinsic transcriptional activities are repressed by I-mfa, are suggested to be oncogenes, I-mfa domain proteins may be involved in their oncogenic functions by negatively regulating their transcriptional activities.
Collapse
Affiliation(s)
- Shuichi Kusano
- Division of Persistent and Oncogenic Viruses, Center for Chronic Viral Diseases, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan.
| | | | | |
Collapse
|
45
|
Abstract
The retinoblastoma protein (RB)–E2F1 pathway has a central role in regulating the cell cycle. Several PAX proteins (tissue-specific developmental regulators), including PAX8, interact with the RB protein, and thus regulate the cell cycle directly or indirectly. Here, we report that PAX8 expression is frequent in renal cell carcinoma, bladder, ovarian and thyroid cancer cell lines, and that silencing of PAX8 in cancer cell lines leads to a striking reduction in the expression of E2F1 and its target genes, as well as a proteasome-dependent destabilization of RB protein, with the RB1 mRNA level remaining unaffected. Cancer cells expressing PAX8 undergo a G1/S arrest and eventually senesce following PAX8 silencing. We demonstrate that PAX8 transcriptionally regulates the E2F1 promoter directly, and E2F1 transcription is enhanced after RB depletion. RB is recruited to the PAX8-binding site, and is involved in PAX8-mediated E2F1 transcription in cancer cells. Therefore, our results suggest that, in cancer, frequent and persistent expression of PAX8 is required for cell growth control through transcriptional activation of E2F1 expression and upregulation of the RB–E2F1 pathway.
Collapse
|
46
|
Herzog M, Wendling O, Guillou F, Chambon P, Mark M, Losson R, Cammas F. TIF1β association with HP1 is essential for post-gastrulation development, but not for Sertoli cell functions during spermatogenesis. Dev Biol 2010; 350:548-58. [PMID: 21163256 DOI: 10.1016/j.ydbio.2010.12.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2010] [Revised: 11/17/2010] [Accepted: 12/06/2010] [Indexed: 12/30/2022]
Abstract
TIF1β is an essential mammalian transcriptional corepressor. It interacts with the heterochromatin proteins HP1 through a highly conserved motif, the HP1box, and we have previously shown that this interaction is essential for the differentiation of F9 cells to occur. Here we address the in vivo functions of the TIF1β-HP1 interaction, by generating mice in which the TIF1β HP1box is mutated, leading to the loss of TIF1β interaction with HP1. The effects of the mutation were monitored in two instances, where TIF1β is known to play key roles: early embryonic development and spermatogenesis. We find that mutating the HP1box of TIF1β disrupts embryonic development soon after gastrulation. This effect is likely caused by the misexpression of TIF1β targets that regulate mitotic progression and pluripotency. In contrast, in Sertoli cells, we found that the absence of TIF1β but not its mutation in the HP1box leads to a clear defect of spermatogenesis characterized by a failure of spermatid release and a testicular degeneration. These data show that the interaction between TIF1β and HP1 is essential for some but not all TIF1β functions in vivo. Furthermore, we observed that TIF1β is dispersed through the nucleoplasm of E7.0 embryos, whereas it is mainly associated with pericentromeric heterochromatin of E8.5 embryos and of Sertoli cells, an association that is lost upon TIF1β HP1box mutation. Altogether, these data provide strong evidence that nuclear organization plays key roles during early embryonic development.
Collapse
Affiliation(s)
- Marielle Herzog
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Illkirch-Cedex, France
| | | | | | | | | | | | | |
Collapse
|
47
|
Wohlleber E, Kirchhoff M, Zink AM, Kreiss-Nachtsheim M, Küchler A, Jepsen B, Kjaergaard S, Engels H. Clinical and molecular characterization of two patients with overlapping de novo microdeletions in 2p14-p15 and mild mental retardation. Eur J Med Genet 2010; 54:67-72. [PMID: 20950717 DOI: 10.1016/j.ejmg.2010.09.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2010] [Accepted: 09/23/2010] [Indexed: 12/23/2022]
Abstract
Here, we present two patients with overlapping de novo microdeletions in chromosome 2p14-p15, mild mental retardation concerning especially language development, as well as mild dysmorphic features. Patient 1 also presented with generalized seizures, sensorineural hearing loss, and relative microcephaly. In patient 1, molecular karyotyping detected a 2.23-Mb deletion in chromosome 2p14-p15 including 11 known genes. The second patient, with a 2.84-Mb microdeletion containing 15 genes, was identified in the DECIPHER database. The two deleted regions overlap by a stretch of 1.6 Mb that contains 10 genes, several of which have functions in neuronal development. This report illustrates the power of databases such as DECIPHER and MRNET in assessing the pathogenicity of copy-number variations (CNVs).
Collapse
Affiliation(s)
- Eva Wohlleber
- Institute of Human Genetics, University of Bonn, Biomedizinisches Zentrum, Sigmund-Freud-Strasse 25, D-53105 Bonn, Germany.
| | | | | | | | | | | | | | | |
Collapse
|
48
|
Li Y, Nie CJ, Hu L, Qin Y, Liu HB, Zeng TT, Chen L, Fu L, Deng W, Chen SP, Jia WH, Zhang C, Xie D, Guan XY. Characterization of a novel mechanism of genomic instability involving the SEI1/SET/NM23H1 pathway in esophageal cancers. Cancer Res 2010; 70:5695-705. [PMID: 20570897 DOI: 10.1158/0008-5472.can-10-0392] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Amplification of 19q is a frequent genetic alteration in many solid tumors, and SEI1 is a candidate oncogene within the amplified region. Our previous study found that the oncogenic function of SEI1 was associated with chromosome instability. In this study, we report a novel mechanism of genomic instability involving the SEI1-SET-NM23H1 pathway. Overexpression of SEI1 was observed in 57 of 100 of esophageal squamous cell carcinoma cases. Functional study showed that SEI1 had strong tumorigenic ability, and overexpression of SEI1 could induce the genomic instability by increasing micronuclei formation and reducing the number of chromosomes. Further study found that SEI1 was able to upregulate SET expression and subsequently promote the translocation of a small amount of NM23H1 from the cytoplasm to the nucleus. Nuclear NM23H1 can induce DNA damage through its DNA nick activity. Unlike CTL attack, only a small amount of NM23H1 translocated into the nucleus (<10%) induced by the overexpression of SEI1. Further study found that the small amount of NM23H1 only induced minor DNA damage and subsequently increased genomic instability, rather than inducing irreparable DNA damage and initiating apoptosis by CTL attack. Sister chromatid exchange experiment found that the translocation of small amount of NM23H1 into the nucleus induced by the overexpressions of SEI1/SET could increase the frequency of sister chromatid exchange. In addition, overexpression of SEI1 was associated with poor prognosis of esophageal squamous cell carcinoma. Taken together, these findings define a novel mechanism of genomic instability and malignant progression in esophageal cancers, a deadly disease of increasing incidence in developed countries.
Collapse
Affiliation(s)
- Yan Li
- State Key Laboratory of Oncology in Southern China, Cancer Center, Sun Yat-sen University, Guangzhou, China
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
49
|
Abstract
Developmental and pathological death of neurons requires activation of a defined pathway of cell cycle proteins. However, it is unclear how this pathway is regulated and whether it is relevant in vivo. A screen for transcripts robustly induced in cultured neurons by DNA damage identified Sertad1, a Cdk4 (cyclin-dependent kinase 4) activator. Sertad1 is also induced in neurons by nerve growth factor (NGF) deprivation and Abeta (beta-amyloid). RNA interference-mediated downregulation of Sertad1 protects neurons in all three death models. Studies of NGF withdrawal indicate that Sertad1 is required to initiate the apoptotic cell cycle pathway since its knockdown blocks subsequent pathway events. Finally, we find that Sertad1 expression is required for developmental neuronal death in the cerebral cortex. Sertad1 thus appears to be essential for neuron death in trophic support deprivation in vitro and in vivo and in models of DNA damage and Alzheimer's disease. It may therefore be a suitable target for therapeutic intervention.
Collapse
|
50
|
Fernandez-Marcos PJ, Pantoja C, Gonzalez-Rodriguez A, Martin N, Flores JM, Valverde AM, Hara E, Serrano M. Normal proliferation and tumorigenesis but impaired pancreatic function in mice lacking the cell cycle regulator sei1. PLoS One 2010; 5:e8744. [PMID: 20090907 PMCID: PMC2807453 DOI: 10.1371/journal.pone.0008744] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2009] [Accepted: 12/04/2009] [Indexed: 11/18/2022] Open
Abstract
Sei1 is a positive regulator of proliferation that promotes the assembly of Cdk4-cyclin D complexes and enhances the transcriptional activity of E2f1. The potential oncogenic role of Sei1 is further suggested by its overexpression in various types of human cancers. To study the role of Sei1, we have generated a mouse line deficient for this gene. Sei1-null fibroblasts did not show abnormalities regarding proliferation or susceptibility to neoplastic transformation, nor did we observe defects on Cdk4 complexes or E2f activity. Sei1-null mice were viable, did not present overt pathologies, had a normal lifespan, and had a normal susceptibility to spontaneous and chemically-induced cancer. Pancreatic insulin-producing cells are known to be particularly sensitive to Cdk4-cyclin D and E2f activities, and we have observed that Sei1 is highly expressed in pancreatic islets compared to other tissues. Interestingly, Sei1-null mice present lower number of islets, decreased beta-cell area, impaired insulin secretion, and glucose intolerance. These defects were associated to nuclear accumulation of the cell-cycle inhibitors p21(Cip1) and p27(Kip1) in islet cells. We conclude that Sei1 plays an important role in pancreatic beta-cells, which supports a functional link between Sei1 and the core cell cycle regulators specifically in the context of the pancreas.
Collapse
Affiliation(s)
| | - Cristina Pantoja
- Tumor Suppression Group, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Agueda Gonzalez-Rodriguez
- Institute of Biomedicine Alberto Sols (CSIC/UAM), Madrid, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), ISCIII, Madrid, Spain
| | - Nicholas Martin
- Cancer Institute of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Juana M. Flores
- Department of Animal Surgery and Medicine, Complutense University of Madrid, Madrid, Spain
| | - Angela M. Valverde
- Institute of Biomedicine Alberto Sols (CSIC/UAM), Madrid, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), ISCIII, Madrid, Spain
| | - Eiji Hara
- Cancer Institute of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Manuel Serrano
- Tumor Suppression Group, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
- * E-mail:
| |
Collapse
|