1
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Maejima Y, Nah J, Aryan Z, Zhai P, Sung EA, Liu T, Takayama K, Moghadami S, Sasano T, Li H, Sadoshima J. Mst1-mediated phosphorylation of FoxO1 and C/EBP-β stimulates cell-protective mechanisms in cardiomyocytes. Nat Commun 2024; 15:6279. [PMID: 39060225 PMCID: PMC11282193 DOI: 10.1038/s41467-024-50393-y] [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: 10/07/2022] [Accepted: 07/09/2024] [Indexed: 07/28/2024] Open
Abstract
The molecular mechanisms by which FoxO transcription factors mediate diametrically opposite cellular responses, namely death and survival, remain unknown. Here we show that Mst1 phosphorylates FoxO1 Ser209/Ser215/Ser218/Thr228/Ser232/Ser243, thereby inhibiting FoxO1-mediated transcription of proapoptotic genes. On the other hand, Mst1 increases FoxO1-C/EBP-β interaction and activates C/EBP-β by phosphorylating it at Thr299, thereby promoting transcription of prosurvival genes. Myocardial ischemia/reperfusion injury is larger in cardiac-specific FoxO1 knockout mice than in control mice. However, the concurrent presence of a C/EBP-β T299E phospho-mimetic mutation reduces infarct size in cardiac-specific FoxO1 knockout mice. The C/EBP-β phospho-mimetic mutant exhibits greater binding to the promoter of prosurvival genes than wild type C/EBP-β. In conclusion, phosphorylation of FoxO1 by Mst1 inhibits binding of FoxO1 to pro-apoptotic gene promoters but enhances its binding to C/EBP-β, phosphorylation of C/EBP-β, and transcription of prosurvival genes, which stimulate protective mechanisms in the heart.
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Grants
- 67724 U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- 102738 U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- 138720 U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- 144626 U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- 150881 U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- 15CVD04 Fondation Leducq
- 35120374 American Hospital Association (AHA)
- U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
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Affiliation(s)
- Yasuhiro Maejima
- Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Jihoon Nah
- Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA
- Department of Biochemistry, Chungbuk National University, Cheongju, Korea
| | - Zahra Aryan
- Department of Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Peiyong Zhai
- Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Eun-Ah Sung
- Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Tong Liu
- Center for Advanced Proteomics Research and Department of Biochemistry and Molecular Biology, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Koichiro Takayama
- Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Siavash Moghadami
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, USA
| | - Tetsuo Sasano
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hong Li
- Center for Advanced Proteomics Research and Department of Biochemistry and Molecular Biology, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Junichi Sadoshima
- Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA.
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2
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Lu YM, Yan S, Ti SC, Zheng C. Editing of endogenous tubulins reveals varying effects of tubulin posttranslational modifications on axonal growth and regeneration. eLife 2024; 13:RP94583. [PMID: 38949652 PMCID: PMC11216746 DOI: 10.7554/elife.94583] [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] [Indexed: 07/02/2024] Open
Abstract
Tubulin posttranslational modifications (PTMs) modulate the dynamic properties of microtubules and their interactions with other proteins. However, the effects of tubulin PTMs were often revealed indirectly through the deletion of modifying enzymes or the overexpression of tubulin mutants. In this study, we directly edited the endogenous tubulin loci to install PTM-mimicking or -disabling mutations and studied their effects on microtubule stability, neurite outgrowth, axonal regeneration, cargo transport, and sensory functions in the touch receptor neurons of Caenorhabditis elegans. We found that the status of β-tubulin S172 phosphorylation and K252 acetylation strongly affected microtubule dynamics, neurite growth, and regeneration, whereas α-tubulin K40 acetylation had little influence. Polyglutamylation and detyrosination in the tubulin C-terminal tail had more subtle effects on microtubule stability likely by modulating the interaction with kinesin-13. Overall, our study systematically assessed and compared several tubulin PTMs for their impacts on neuronal differentiation and regeneration and established an in vivo platform to test the function of tubulin PTMs in neurons.
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Affiliation(s)
- Yu-Ming Lu
- School of Biological Sciences, Faculty of Science, The University of Hong Kong, Hong Kong SARHong KongChina
| | - Shan Yan
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong KongHong KongChina
| | - Shih-Chieh Ti
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong KongHong KongChina
| | - Chaogu Zheng
- School of Biological Sciences, Faculty of Science, The University of Hong Kong, Hong Kong SARHong KongChina
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3
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Li J, Lin Y, Li D, He M, Kui H, Bai J, Chen Z, Gou Y, Zhang J, Wang T, Tang Q, Kong F, Jin L, Li M. Building Haplotype-Resolved 3D Genome Maps of Chicken Skeletal Muscle. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2305706. [PMID: 38582509 PMCID: PMC11200017 DOI: 10.1002/advs.202305706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 03/07/2024] [Indexed: 04/08/2024]
Abstract
Haplotype-resolved 3D chromatin architecture related to allelic differences in avian skeletal muscle development has not been addressed so far, although chicken husbandry for meat consumption has been prevalent feature of cultures on every continent for more than thousands of years. Here, high-resolution Hi-C diploid maps (1.2-kb maximum resolution) are generated for skeletal muscle tissues in chicken across three developmental stages (embryonic day 15 to day 30 post-hatching). The sequence features governing spatial arrangement of chromosomes and characterize homolog pairing in the nucleus, are identified. Multi-scale characterization of chromatin reorganization between stages from myogenesis in the fetus to myofiber hypertrophy after hatching show concordant changes in transcriptional regulation by relevant signaling pathways. Further interrogation of parent-of-origin-specific chromatin conformation supported that genomic imprinting is absent in birds. This study also reveals promoter-enhancer interaction (PEI) differences between broiler and layer haplotypes in skeletal muscle development-related genes are related to genetic variation between breeds, however, only a minority of breed-specific variations likely contribute to phenotypic divergence in skeletal muscle potentially via allelic PEI rewiring. Beyond defining the haplotype-specific 3D chromatin architecture in chicken, this study provides a rich resource for investigating allelic regulatory divergence among chicken breeds.
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Affiliation(s)
- Jing Li
- State Key Laboratory of Swine and Poultry Breeding IndustryCollege of Animal Science and TechnologySichuan Agricultural UniversityChengdu611130China
| | - Yu Lin
- State Key Laboratory of Swine and Poultry Breeding IndustryCollege of Animal Science and TechnologySichuan Agricultural UniversityChengdu611130China
| | - Diyan Li
- School of PharmacyChengdu UniversityChengdu610106China
| | - Mengnan He
- Wildlife Conservation Research DepartmentChengdu Research Base of Giant Panda BreedingChengdu610057China
| | - Hua Kui
- State Key Laboratory of Swine and Poultry Breeding IndustryCollege of Animal Science and TechnologySichuan Agricultural UniversityChengdu611130China
| | - Jingyi Bai
- State Key Laboratory of Swine and Poultry Breeding IndustryCollege of Animal Science and TechnologySichuan Agricultural UniversityChengdu611130China
| | - Ziyu Chen
- State Key Laboratory of Swine and Poultry Breeding IndustryCollege of Animal Science and TechnologySichuan Agricultural UniversityChengdu611130China
| | - Yuwei Gou
- State Key Laboratory of Swine and Poultry Breeding IndustryCollege of Animal Science and TechnologySichuan Agricultural UniversityChengdu611130China
| | - Jiaman Zhang
- State Key Laboratory of Swine and Poultry Breeding IndustryCollege of Animal Science and TechnologySichuan Agricultural UniversityChengdu611130China
| | - Tao Wang
- School of PharmacyChengdu UniversityChengdu610106China
| | - Qianzi Tang
- State Key Laboratory of Swine and Poultry Breeding IndustryCollege of Animal Science and TechnologySichuan Agricultural UniversityChengdu611130China
| | - Fanli Kong
- College of Life ScienceSichuan Agricultural UniversityYa'an625014China
| | - Long Jin
- State Key Laboratory of Swine and Poultry Breeding IndustryCollege of Animal Science and TechnologySichuan Agricultural UniversityChengdu611130China
| | - Mingzhou Li
- State Key Laboratory of Swine and Poultry Breeding IndustryCollege of Animal Science and TechnologySichuan Agricultural UniversityChengdu611130China
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4
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Advani D, Kumar P. Uncovering Cell Cycle Dysregulations and Associated Mechanisms in Cancer and Neurodegenerative Disorders: A Glimpse of Hope for Repurposed Drugs. Mol Neurobiol 2024:10.1007/s12035-024-04130-7. [PMID: 38532240 DOI: 10.1007/s12035-024-04130-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Accepted: 03/19/2024] [Indexed: 03/28/2024]
Abstract
The cell cycle is the sequence of events orchestrated by a complex network of cell cycle proteins. Unlike normal cells, mature neurons subsist in a quiescent state of the cell cycle, and aberrant cell cycle activation triggers neuronal death accompanied by neurodegeneration. The periodicity of cell cycle events is choreographed by various mechanisms, including DNA damage repair, oxidative stress, neurotrophin activity, and ubiquitin-mediated degradation. Given the relevance of cell cycle processes in cancer and neurodegeneration, this review delineates the overlapping cell cycle events, signaling pathways, and mechanisms associated with cell cycle aberrations in cancer and the major neurodegenerative disorders. We suggest that dysregulation of some common fundamental signaling processes triggers anomalous cell cycle activation in cancer cells and neurons. We discussed the possible use of cell cycle inhibitors for neurodegenerative disorders and described the associated challenges. We propose that a greater understanding of the common mechanisms driving cell cycle aberrations in cancer and neurodegenerative disorders will open a new avenue for the development of repurposed drugs.
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Affiliation(s)
- Dia Advani
- Molecular Neuroscience and Functional Genomics Laboratory, Department of Biotechnology, Delhi Technological University (Formerly Delhi College of Engineering), Shahbad Daulatpur, Bawana Road, New Delhi, Delhi, 110042, India
| | - Pravir Kumar
- Molecular Neuroscience and Functional Genomics Laboratory, Department of Biotechnology, Delhi Technological University (Formerly Delhi College of Engineering), Shahbad Daulatpur, Bawana Road, New Delhi, Delhi, 110042, India.
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5
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Cheng M, Nie Y, Song M, Chen F, Yu Y. Forkhead box O proteins: steering the course of stem cell fate. CELL REGENERATION (LONDON, ENGLAND) 2024; 13:7. [PMID: 38466341 DOI: 10.1186/s13619-024-00190-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 02/26/2024] [Indexed: 03/13/2024]
Abstract
Stem cells are pivotal players in the intricate dance of embryonic development, tissue maintenance, and regeneration. Their behavior is delicately balanced between maintaining their pluripotency and differentiating as needed. Disruptions in this balance can lead to a spectrum of diseases, underscoring the importance of unraveling the complex molecular mechanisms that govern stem cell fate. Forkhead box O (FOXO) proteins, a family of transcription factors, are at the heart of this intricate regulation, influencing a myriad of cellular processes such as survival, metabolism, and DNA repair. Their multifaceted role in steering the destiny of stem cells is evident, as they wield influence over self-renewal, quiescence, and lineage-specific differentiation in both embryonic and adult stem cells. This review delves into the structural and regulatory intricacies of FOXO transcription factors, shedding light on their pivotal roles in shaping the fate of stem cells. By providing insights into the specific functions of FOXO in determining stem cell fate, this review aims to pave the way for targeted interventions that could modulate stem cell behavior and potentially revolutionize the treatment and prevention of diseases.
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Affiliation(s)
- Mengdi Cheng
- Laboratory of Tissue Engineering, College of Life Sciences, Northwest University, Xi'an, China
| | - Yujie Nie
- Laboratory of Tissue Engineering, College of Life Sciences, Northwest University, Xi'an, China
| | - Min Song
- Laboratory of Tissue Engineering, College of Life Sciences, Northwest University, Xi'an, China
| | - Fulin Chen
- Laboratory of Tissue Engineering, College of Life Sciences, Northwest University, Xi'an, China
- Provincial Key Laboratory of Biotechnology of Shaanxi, Northwest University, Xi'an, China
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Northwest University, Xi'an, China
| | - Yuan Yu
- Laboratory of Tissue Engineering, College of Life Sciences, Northwest University, Xi'an, China.
- Provincial Key Laboratory of Biotechnology of Shaanxi, Northwest University, Xi'an, China.
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Northwest University, Xi'an, China.
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6
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Li Z, Zhang W, Xu J, Mo X. Cdk1 protects against oxygen-glucose deprivation and reperfusion-induced Golgi fragmentation and apoptosis through mediating GM130 phosphorylation. J Mol Histol 2023; 54:609-619. [PMID: 37831422 DOI: 10.1007/s10735-023-10164-3] [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: 09/05/2022] [Accepted: 09/30/2023] [Indexed: 10/14/2023]
Abstract
Increasing evidence has indicated that the Golgi apparatus (GA) is involved in the development of cerebral ischemia-reperfusion (IR) injury. Finding effective neuroprotective agents targeting GA has become a priority in the treatment of ischemic stroke. GM130, a key structural protein present on the cis-face of the GA, maintains its structure through its phosphorylation and dephosphorylation. However, the molecular mechanisms by which GM130 regulates IR-induced neuronal apoptosis are not well elucidated. Mouse neuroblastoma Neuro2a (N2A) cells were subjected to oxygen-glucose deprivation and reperfusion (OGDR) insult. Cell proliferation and apoptosis were determined using MTT assay, TUNEL staining, and flow cytometry. GA morphology was detected by immunocytochemical staining and immunofluorescence microscopy. GA-related protein and mRNA levels were detected by WB and qPCR, respectively. Treatment with Purvalanol A, an effective Cdk1 inhibitor, and transfection of Cdk1-shRNA were carried out to inhibit OGDR-induced Cdk1 elevation. The results demonstrated that OGDR induced Golgi fragmentation, neuronal apoptosis, GM130 phosphorylation, and p115 cleavage in N2A cells. Cdk1 elevation after OGDR was closely correlated with GM130 phosphorylation, not p115. Inhibition of Cdk1 significantly attenuated OGDR-induced Golgi fragmentation and cell apoptosis. Cdk1 interacted with GM130 and decreased its phosphorylation on the serine 25 site in N2A cells exposed to OGDR. The present findings reveal that Cdk1 protects against IR-induced GA fragmentation and apoptosis, likely through the mediation of GM130 phosphorylation. This neuroprotective potential of Cdk1 against IR insult and the underlying mechanism will pave the way for potential clinical applications targeting the GA organelle for cerebral IR-related disorders.
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Affiliation(s)
- Zheng Li
- Department of General Surgery, Third Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Weiwei Zhang
- Department of Radiology, Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Ji Xu
- Department of Emergency, Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Xiaoye Mo
- Department of Emergency, Xiangya Hospital, Central South University, Changsha, Hunan, PR China.
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7
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Wang Q, Bode AM, Zhang T. Targeting CDK1 in cancer: mechanisms and implications. NPJ Precis Oncol 2023; 7:58. [PMID: 37311884 DOI: 10.1038/s41698-023-00407-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 05/25/2023] [Indexed: 06/15/2023] Open
Abstract
Cyclin dependent kinases (CDKs) are serine/threonine kinases that are proposed as promising candidate targets for cancer treatment. These proteins complexed with cyclins play a critical role in cell cycle progression. Most CDKs demonstrate substantially higher expression in cancer tissues compared with normal tissues and, according to the TCGA database, correlate with survival rate in multiple cancer types. Deregulation of CDK1 has been shown to be closely associated with tumorigenesis. CDK1 activation plays a critical role in a wide range of cancer types; and CDK1 phosphorylation of its many substrates greatly influences their function in tumorigenesis. Enrichment of CDK1 interacting proteins with Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis was conducted to demonstrate that the associated proteins participate in multiple oncogenic pathways. This abundance of evidence clearly supports CDK1 as a promising target for cancer therapy. A number of small molecules targeting CDK1 or multiple CDKs have been developed and evaluated in preclinical studies. Notably, some of these small molecules have also been subjected to human clinical trials. This review evaluates the mechanisms and implications of targeting CDK1 in tumorigenesis and cancer therapy.
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Affiliation(s)
- Qiushi Wang
- The Hormel Institute, University of Minnesota, 801 16th Ave NE, Austin, MN, 55912, USA
| | - Ann M Bode
- The Hormel Institute, University of Minnesota, 801 16th Ave NE, Austin, MN, 55912, USA.
| | - Tianshun Zhang
- The Hormel Institute, University of Minnesota, 801 16th Ave NE, Austin, MN, 55912, USA.
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8
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Bernardo VS, Torres FF, da Silva DGH. FoxO3 and oxidative stress: a multifaceted role in cellular adaptation. J Mol Med (Berl) 2023; 101:83-99. [PMID: 36598531 DOI: 10.1007/s00109-022-02281-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 12/14/2022] [Accepted: 12/16/2022] [Indexed: 01/05/2023]
Abstract
Oxidative stress is a major cause of morbidity and mortality in human health and disease. In this review, we focus on the Forkhead Box (Fox) subclass O3 (FoxO3), an extensively studied transcription factor that plays a pleiotropic role in a wide range of physiological and pathological processes by regulating multiple gene regulatory networks involved in the modulation of numerous aspects of cellular metabolism, including fuel metabolism, cell death, and stress resistance. This review will also focus on regulatory mechanisms of FoxO3 expression and activity, such as crucial post-translational modifications and non-coding RNAs. Moreover, this work discusses and evidences some pathways to how this transcription factor and reactive oxygen species regulate each other, which may lead to the pathogenesis of various types of diseases. Therefore, in addition to being a promising therapeutic target, the FoxO3-regulated signaling pathways can also be used as reliable diagnostic and prognostic biomarkers and indicators for drug responsiveness.
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Affiliation(s)
| | | | - Danilo Grünig Humberto da Silva
- Department of Biology, Universidade Estadual Paulista (UNESP), São Paulo, Brazil.
- Campus de Três Lagoas, Universidade Federal de Mato Grosso Do Sul (CPTL/UFMS), Avenida Ranulpho Marques Leal, 3484, Três Lagoas, Mato Grosso Do Sul, Distrito Industrial-Post code 79613-000, Brazil.
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9
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Shukla M, Vincent B. Melatonin as a Harmonizing Factor of Circadian Rhythms, Neuronal Cell Cycle and Neurogenesis: Additional Arguments for Its Therapeutic Use in Alzheimer's Disease. Curr Neuropharmacol 2023; 21:1273-1298. [PMID: 36918783 PMCID: PMC10286584 DOI: 10.2174/1570159x21666230314142505] [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: 10/19/2022] [Revised: 12/07/2022] [Accepted: 12/31/2022] [Indexed: 03/16/2023] Open
Abstract
The synthesis and release of melatonin in the brain harmonize various physiological functions. The apparent decline in melatonin levels with advanced aging is an aperture to the neurodegenerative processes. It has been indicated that down regulation of melatonin leads to alterations of circadian rhythm components, which further causes a desynchronization of several genes and results in an increased susceptibility to develop neurodegenerative diseases. Additionally, as circadian rhythms and memory are intertwined, such rhythmic disturbances influence memory formation and recall. Besides, cell cycle events exhibit a remarkable oscillatory system, which is downstream of the circadian phenomena. The linkage between the molecular machinery of the cell cycle and complex fundamental regulatory proteins emphasizes the conjectural regulatory role of cell cycle components in neurodegenerative disorders such as Alzheimer's disease. Among the mechanisms intervening long before the signs of the disease appear, the disturbances of the circadian cycle, as well as the alteration of the machinery of the cell cycle and impaired neurogenesis, must hold our interest. Therefore, in the present review, we propose to discuss the underlying mechanisms of action of melatonin in regulating the circadian rhythm, cell cycle components and adult neurogenesis in the context of AD pathogenesis with the view that it might further assist to identify new therapeutic targets.
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Affiliation(s)
- Mayuri Shukla
- Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom 73170, Thailand
- Present Address: Chulabhorn Graduate Institute, Chulabhorn Royal Academy, 10210, Bangkok, Thailand
| | - Bruno Vincent
- Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom 73170, Thailand
- Institute of Molecular and Cellular Pharmacology, Laboratory of Excellence DistALZ, Université Côte d'Azur, INSERM, CNRS, Sophia-Antipolis, 06560, Valbonne, France
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10
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Shang X, Liu K, Wang Z, Sun Y, Cao N, Huang W, Zhu Y, Wang W. Screening and analysis of key genes in the biological behavior of bone mesenchymal stem cells seeded on gradient nanostructured titanium compared with native pure Ti. J Biomater Appl 2023; 37:1086-1101. [PMID: 36063429 DOI: 10.1177/08853282221125036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Titanium (Ti) and Ti-based alloy materials are ideal brackets that restore bone defect, and the mechanism of related genes inducing bone mesenchymal stem cells (BMSCs) to osteogenic differentiation is currently a hot research topic. In order to screen key genes of BMSCs during the osteogenic expression process, we acquired data sets (GSE37237 and GSE84500) which were in the database Gene Expression Omnibus (GEO). Investigations on differentially expressed genes (DEGs) and their enrichment of functions were conducted. We constructed relative protein-protein interaction (PPI) network by using Search Tool for the Retrieval of Interacting Genes (STRING) and visualized the expression of DEGs with Cytoscape. A total of 279 DEGs were discerned, which could be divided into 177 down regulated genes and 102 up regulated genes. In addition, the DEGs' enrichment and pathways included regulation of actin cytoskeleton, inflammatory mediator regulation of transient receptor potential (TRP) channels, peroxisome proliferator-activated receptors (PPAR) pathway, cell cycle, Rheumatoid arthritis, mitogen-activated protein kinases (MAPK) signaling pathway and Ras signaling pathway ect. It showed that 10 notable up regulated genes were mainly in AMP-activated protein kinase (AMPK) pathway. Then we used a technology named surface mechanical attrition treatment (SMAT) to prepare gradient nanostructured (GNS) surface Ti and seeded well-growing BMSCs on the surface of SMAT Ti and native pure Ti. Cell Counting Kits-8 (CCK-8), apoptosis experiment, immunofluorescence technology and staining experiments for alka-line phosphatase (ALP) and alizarin red staining (ARS) were used to research the proliferation, adhesion and differentiation ability of BMSCs seeded on SMAT Ti compared with native pure Ti. We used quantitative real-time PCR (qRT-PCR) technology so as to verify the expression of the most significant 5 genes. In summary, these results indicated novel point of views into candidate genes and potential mechanism for the further study of BMSCs' behaviors seeded on SMAT Ti.
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Affiliation(s)
- Xinyue Shang
- 576019General Dentistry Dep, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110001, China
| | - Keda Liu
- 576019General Dentistry Dep, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110001, China
| | - Zhenbo Wang
- 71123Metallic Nano-Materials Division, Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy Sciences, Shenyang 110016, China
| | - Yantao Sun
- 71123Metallic Nano-Materials Division, Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy Sciences, Shenyang 110016, China
| | - Nanjue Cao
- 576019General Dentistry Dep, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110001, China
| | - Wei Huang
- 576019General Dentistry Dep, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110001, China
| | - Yuhe Zhu
- 576019General Dentistry Dep, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110001, China
| | - Wei Wang
- 576019General Dentistry Dep, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110001, China
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11
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Tao L, Segil N. CDK2 regulates aminoglycoside-induced hair cell death through modulating c-Jun activity: Inhibiting CDK2 to preserve hearing. Front Mol Neurosci 2022; 15:1013383. [PMID: 36311033 PMCID: PMC9606710 DOI: 10.3389/fnmol.2022.1013383] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 09/27/2022] [Indexed: 11/13/2022] Open
Abstract
Sensory hair cell death caused by the ototoxic side effects of many clinically used drugs leads to permanent sensorineural hearing loss in patients. Aminoglycoside antibiotics are widely used and well-known for their ototoxicity, but the molecular mechanisms of aminoglycoside-induced hair cell death are not well understood. This creates challenges in our attempts to alleviate or prevent such adverse side effects. Here, we report a regulatory role of CDK2 in aminoglycoside-induced hair cell death. Utilizing organotypic cultures of cochleae from neonatal mice, we show that blocking CDK2 activity by either pharmaceutical inhibition or by Cdk2 gene knockout protects hair cells against the ototoxicity of gentamicin—one of the most commonly used aminoglycoside antibiotics—by interfering with intrinsic programmed cell death processes. Specifically, we show that CDK2 inhibition delays the collapse of mitochondria and the activation of a caspase cascade. Furthermore, at the molecular level, inhibition of CDK2 activity influences proapoptotic JNK signaling by reducing the protein level of c-Jun and suppressing the gentamicin-induced upregulation of c-Jun target genes Jun and Bim. Our in vivo studies reveal that Cdk2 gene knockout animals are significantly less sensitive to gentamicin ototoxicity compared to wild-type littermates. Altogether, our work ascertains the non-cell cycle role of CDK2 in regulating aminoglycoside-induced hair cell apoptosis and sheds lights on new potential strategies for hearing protection against ototoxicity.
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Affiliation(s)
- Litao Tao
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
- USC Caruso Department of Otolaryngology-Head and Neck Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
- *Correspondence: Litao Tao,
| | - Neil Segil
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
- USC Caruso Department of Otolaryngology-Head and Neck Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
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12
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Pandey N, Vinod PK. Model scenarios for cell cycle re-entry in Alzheimer's disease. iScience 2022; 25:104543. [PMID: 35747391 PMCID: PMC9209725 DOI: 10.1016/j.isci.2022.104543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 05/01/2022] [Accepted: 06/02/2022] [Indexed: 11/30/2022] Open
Abstract
Alzheimer's disease (AD) is the most prevalent neurodegenerative disease. Aberrant production and aggregation of amyloid beta (Aβ) peptide into plaques is a frequent feature of AD, but therapeutic approaches targeting Aβ accumulation fail to inhibit disease progression. The approved cholinesterase inhibitor drugs are symptomatic treatments. During human brain development, the progenitor cells differentiate into neurons and switch to a postmitotic state. However, cell cycle re-entry often precedes loss of neurons. We developed mathematical models of multiple routes leading to cell cycle re-entry in neurons that incorporate the crosstalk between cell cycle, neuronal, and apoptotic signaling mechanisms. We show that the integration of multiple feedback loops influences disease severity making the switch to pathological state irreversible. We observe that the transcriptional changes associated with this transition are also characteristics of the AD brain. We propose that targeting multiple arms of the feedback loop may bring about disease-modifying effects in AD. Developed mathematical models of cell cycle re-entry in Alzheimer's disease (AD) Integration of multiple feedback loops drives irreversible transition to AD Predicted transcriptional dysregulation is validated using AD gene expression data Inhibition of self-amplifying feedback loops brings about disease-modifying effects
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Affiliation(s)
- Nishtha Pandey
- Center for Computational Natural Sciences and Bioinformatics, International Institute of Information Technology, Hyderabad 500032 India
| | - P K Vinod
- Center for Computational Natural Sciences and Bioinformatics, International Institute of Information Technology, Hyderabad 500032 India
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Guo S, Mangal R, Dandu C, Geng X, Ding Y. Role of Forkhead Box Protein O1 (FoxO1) in Stroke: A Literature Review. Aging Dis 2022; 13:521-533. [PMID: 35371601 PMCID: PMC8947839 DOI: 10.14336/ad.2021.0826] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 08/26/2021] [Indexed: 12/11/2022] Open
Abstract
Stroke is one of the most prevalent causes of death around the world. When a stroke occurs, many cellular signaling cascades and regulators are activated, which results in severe cellular dysfunction and debilitating long-term disability. One crucial regulator of cell fate and function is mammalian Forkhead box protein O1 (FoxO1). Many studies have found FoxO1 to be implicated in many cellular processes, including regulating gluconeogenesis and glycogenolysis. During a stroke, modifications of FoxO1 have been linked to a variety of functions, such as inducing cell death and inflammation, inhibiting oxidative injury, affecting the blood brain barrier (BBB), and regulating hepatic gluconeogenesis. For these functions of FoxO1, different measures and treatments were applied to FoxO1 after ischemia. However, the subtle mechanisms of post-transcriptional modification and the role of FoxO1 are still elusive and even contradictory in the development of stroke. The determination of these mechanisms will lead to further enlightenment for FoxO1 signal transduction and the identification of targeted drugs. The regulation and function of FoxO1 may provide an important way for the prevention and treatment of diseases. Overall, the functions of FoxO1 are multifactorial, and this paper will summarize all of the significant pathways in which FoxO1 plays an important role during stroke damage and recovery.
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Affiliation(s)
- Sichao Guo
- 1Luhe Institute of Neuroscience, Beijing Luhe Hospital, Capital Medical University, Beijing, China.,3Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Ruchi Mangal
- 3Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Chaitu Dandu
- 3Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Xiaokun Geng
- 1Luhe Institute of Neuroscience, Beijing Luhe Hospital, Capital Medical University, Beijing, China.,2Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China.,3Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Yuchuan Ding
- 3Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI 48201, USA
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Tanizaki Y, Zhang H, Shibata Y, Shi YB. Thyroid hormone receptor α controls larval intestinal epithelial cell death by regulating the CDK1 pathway. Commun Biol 2022; 5:112. [PMID: 35132135 PMCID: PMC8821549 DOI: 10.1038/s42003-022-03061-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 01/18/2022] [Indexed: 12/13/2022] Open
Abstract
Thyroid hormone (T3) regulates adult intestine development through T3 receptors (TRs). It is difficult to study TR function during postembryonic intestinal maturation in mammals due to maternal influence. We chose intestinal remodeling during Xenopus tropicalis metamorphosis as a model to study TR function in adult organ development. By using ChIP (chromatin immunoprecipitation)-Seq, we identified over 3000 TR-bound genes in the intestine of premetamorphic wild type or TRα (the major TR expressed during premetamorphosis)-knockout tadpoles. Surprisingly, cell cycle-related GO (gene ontology) terms and biological pathways were highly enriched among TR target genes even though the first major event during intestinal metamorphosis is larval epithelial cell death, and TRα knockout drastically reduced this enrichment. More importantly, treatment of tadpoles with cell cycle inhibitors blocked T3-induced intestinal remodeling, especially larval epithelial cell death, suggesting that TRα-dependent activation of cell cycle is important for T3-induced apoptosis during intestinal remodeling. Tanizaki et al use ChIP-Seq to identify over 3000 Thyroid hormone (T3) receptor (TR)-bound genes in the intestine of premetamorphic wild type Xenopus tropicalis tadpoles and in TRα-knockouts. They show that treatment of tadpoles with cell cycle inhibitors blocked T3-induced intestinal remodeling, suggesting that TRα-dependent activation of the cell cycle is important for T3-induced apoptosis during intestinal remodelling.
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Affiliation(s)
- Yuta Tanizaki
- Section on Molecular Morphogenesis, Cell Regulation and Development Affinity Group, Division of Molecular and Cellular Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Hongen Zhang
- Bioinformatics and Scientific Programming Core, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Yuki Shibata
- Section on Molecular Morphogenesis, Cell Regulation and Development Affinity Group, Division of Molecular and Cellular Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Yun-Bo Shi
- Section on Molecular Morphogenesis, Cell Regulation and Development Affinity Group, Division of Molecular and Cellular Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA.
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15
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Chang X, Dong M, Mi X, Hu M, Lu J, Chen X. The Protective Effect of Trichilia catigua A. Juss. on DEHP-Induced Reproductive System Damage in Male Mice. Front Pharmacol 2022; 13:832789. [PMID: 35185586 PMCID: PMC8853101 DOI: 10.3389/fphar.2022.832789] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 01/17/2022] [Indexed: 01/04/2023] Open
Abstract
The present study aimed to explore the protective effect and molecular mechanisms of Trichilia catigua A. Juss. extract (TCE) against di (2-ethylhexyl) phthalate (DEHP)-induced damage to the reproductive system of mice. Acute toxicity tests revealed that the maximum tolerated dose (MTD) in mice was up to 2.7 g kg−1. After induction with DEHP, TCE (L-TCE, M-TCE, H-TCE) was orally administered to mice for 28 days. Differences in indicators among groups showed that TCE significantly improved the anogenital distance and the organ indexes of the epididymides and testes. It also significantly reduced varicocele and interstitial cell lesions compared to the model group. H-TCE reduced the sperm abnormality rate, increased the levels of sex hormones, Na+K+ and Mg2+, Ca2+-ATPase enzyme activity, antioxidant enzyme vitality, coupled with a significant decrease in LH and MDA contents. The levels of testicular marker enzymes ACP and LDH were significantly augmented by both M-TCE and H-TCE. Further studies claimed that DEHP induction reduced the mRNA expression levels of Nrf2, SOD2, SOD3, CDC25C CDK1, CYP11A1, 3β-HSD, 5ɑ-R, AR, SF1, and CYP17A1, increased the level of Keap1, while TCE reversed the expression levels of these genes. Meanwhile, IHC results demonstrated a significant change in the expression activity of the relevant proteins compared to the control group. The results suggest that M-TCE and H-TCE enabled the recovery of DEHP-induced reproductive system damage in male mice by improving testicular histopathology, repairing testicular function, and reducing oxidative stress damage. The oxidation-related Keap1-Nrf2 pathway, SODs enzyme, the cell cycle control-related CDC25C-CDK1 pathway, and the steroidogenic-related pathway may contribute to this protective effects of TCE.
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Affiliation(s)
| | | | | | | | - Juan Lu
- *Correspondence: Xi Chen, ; Juan Lu,
| | - Xi Chen
- *Correspondence: Xi Chen, ; Juan Lu,
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16
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Bao L, Inoue N, Ishikawa M, Gotoh E, Teh OK, Higa T, Morimoto T, Ginanjar EF, Harashima H, Noda N, Watahiki M, Hiwatashi Y, Sekine M, Hasebe M, Wada M, Fujita T. A PSTAIRE-type cyclin-dependent kinase controls light responses in land plants. SCIENCE ADVANCES 2022; 8:eabk2116. [PMID: 35089781 PMCID: PMC8797184 DOI: 10.1126/sciadv.abk2116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 12/06/2021] [Indexed: 06/14/2023]
Abstract
Light is a critical signal perceived by plants to adapt their growth rate and direction. Although many signaling components have been studied, how plants respond to constantly fluctuating light remains underexplored. Here, we showed that in the moss Physcomitrium (Physcomitrella) patens, the PSTAIRE-type cyclin-dependent kinase PpCDKA is dispensable for growth. Instead, PpCDKA and its homolog in Arabidopsis thaliana control light-induced tropisms and chloroplast movements by probably influencing the cytoskeleton organization independently of the cell cycle. In addition, lower PpCDKA kinase activity was required to elicit light responses relative to cell cycle regulation. Thus, our study suggests that plant CDKAs may have been co-opted to control multiple light responses, and owing to the bistable switch properties of PSTAIRE-type CDKs, the noncanonical functions are widely conserved for eukaryotic environmental adaptation.
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Affiliation(s)
- Liang Bao
- Graduate School of Life Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Natsumi Inoue
- Graduate School of Life Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Masaki Ishikawa
- Division of Evolutionary Biology, National Institute for Basic Biology, Okazaki 444-8585, Japan
- School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Okazaki 444-8585, Japan
| | - Eiji Gotoh
- Faculty of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
| | - Ooi-Kock Teh
- Institute for the Advancement of Higher Education, Hokkaido University, Sapporo 060-0817, Japan
| | - Takeshi Higa
- Faculty of Science, Kyushu University, Fukuoka 812-8581, Japan
| | - Tomoro Morimoto
- Graduate School of Life Science, Hokkaido University, Sapporo 060-0810, Japan
| | | | - Hirofumi Harashima
- Cell Function Research Team, RIKEN Centre for Sustainable Resource Science, Yokohama 230-0045, Japan
| | - Natsumi Noda
- Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Masaaki Watahiki
- Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Yuji Hiwatashi
- School of Food Industrial Sciences, Miyagi University, Sendai 982-0215, Japan
| | - Masami Sekine
- Faculty of Bioresources and Environmental Sciences, Ishikawa Prefectural University, Nonoichi 921-8836, Japan
| | - Mitsuyasu Hasebe
- Division of Evolutionary Biology, National Institute for Basic Biology, Okazaki 444-8585, Japan
- School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Okazaki 444-8585, Japan
| | - Masamitsu Wada
- Faculty of Science, Kyushu University, Fukuoka 812-8581, Japan
| | - Tomomichi Fujita
- Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
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Temporal Quantitative Phosphoproteomics Profiling of Interleukin-33 Signaling Network Reveals Unique Modulators of Monocyte Activation. Cells 2022; 11:cells11010138. [PMID: 35011700 PMCID: PMC8749991 DOI: 10.3390/cells11010138] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 12/22/2021] [Accepted: 12/27/2021] [Indexed: 12/13/2022] Open
Abstract
Interleukin-33 (IL-33), a member of the IL-1 superfamily cytokines, is an endogenous danger signal and a nuclear-associated cytokine. It is one of the essential mediators of both innate and adaptive immune responses. Aberrant IL-33 signaling has been demonstrated to play a defensive role against various infectious and inflammatory diseases. Although the signaling responses mediated by IL-33 have been previously reported, the temporal signaling dynamics are yet to be explored. To this end, we applied quantitative temporal phosphoproteomics analysis to elucidate pathways and proteins induced by IL-33 in THP-1 monocytes. Employing a TMT labeling-based quantitation and titanium dioxide (TiO2)-based phosphopeptide enrichment strategy followed by mass spectrometry analysis, we identified and quantified 9448 unique phosphopeptides corresponding to 3392 proteins that showed differential regulation. Of these, 171 protein kinases, 60 phosphatases and 178 transcription factors were regulated at different phases of IL-33 signaling. In addition to the confirmed activation of canonical signaling modules including MAPK, NFκB, PI3K/AKT modules, pathway analysis of the time-dependent phosphorylation dynamics revealed enrichment of several cellular processes, including leukocyte adhesion, response to reactive oxygen species, cell cycle checkpoints, DNA damage and repair pathways. The detailed quantitative phosphoproteomic map of IL-33 signaling will serve as a potentially useful resource to study its function in the context of inflammatory and pathological conditions.
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Japanese Encephalitis Virus NS1' Protein Interacts with Host CDK1 Protein to Regulate Antiviral Response. Microbiol Spectr 2021; 9:e0166121. [PMID: 34756071 PMCID: PMC8579942 DOI: 10.1128/spectrum.01661-21] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Type I interferon (IFN-I) is a key component of the host innate immune system. To establish efficient replication, viruses have developed several strategies to escape from the host IFN response. Japanese encephalitis virus (JEV) NS1', a larger NS1-related protein, is known to inhibit the mitochondrial antiviral signaling (MAVS)-mediated IFN-β induction by increasing the binding of transcription factors (CREB and c-Rel) to the microRNA 22 (miRNA-22) promoter. However, the mechanism by which NS1' induces the recruitment of CREB and c-Rel onto the miRNA-22 promoter is unknown. Here, we found that JEV NS1' protein interacts with the host cyclin-dependent kinase 1 (CDK1) protein. Mechanistically, NS1' interrupts the CDC25C phosphatase-mediated dephosphorylation of CDK1, which prolongs the phosphorylation status of CDK1 and leads to the inhibition of MAVS-mediated IFN-β induction. Furthermore, the CREB phosphorylation and c-Rel activation through the IκBα phosphorylation were observed to be enhanced upon the augmentation of CDK1 phosphorylation by NS1'. The abrogation of CDK1 activity by a small-molecule inhibitor significantly suppressed the JEV replication in vitro and in vivo. Moreover, the administration of CDK1 inhibitor protected the wild-type mice from JEV-induced lethality but showed no effect on the MAVS-/- mice challenged with JEV. In conclusion, our study provides new insight into the mechanism of JEV immune evasion, which may lead to the development of novel therapeutic options to treat JEV infection. IMPORTANCE Japanese encephalitis virus (JEV) is the main cause of acute human encephalitis in Asia. The unavailability of specific treatment for Japanese encephalitis demands a better understanding of the basic cellular mechanisms that contribute to the onset of disease. The present study identifies a novel interaction between the JEV NS1' protein and the cellular CDK1 protein, which facilitates the JEV replication by dampening the cellular antiviral response. This study sheds light on a novel mechanism of JEV replication, and thus our findings could be employed for developing new therapies against JEV infection.
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Du S, Zheng H. Role of FoxO transcription factors in aging and age-related metabolic and neurodegenerative diseases. Cell Biosci 2021; 11:188. [PMID: 34727995 PMCID: PMC8561869 DOI: 10.1186/s13578-021-00700-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 10/20/2021] [Indexed: 12/18/2022] Open
Abstract
Aging happens to all of us as we live. Thanks to the improved living standard and discovery of life-saving medicines, our life expectancy has increased substantially across the world in the past century. However, the rise in lifespan leads to unprecedented increases in both the number and the percentage of individuals 65 years and older, accompanied by the increased incidences of age-related diseases such as type 2 diabetes mellitus and Alzheimer’s disease. FoxO transcription factors are evolutionarily conserved molecules that play critical roles in diverse biological processes, in particular aging and metabolism. Their dysfunction is often found in the pathogenesis of many age-related diseases. Here, we summarize the signaling pathways and cellular functions of FoxO proteins. We also review the complex role of FoxO in aging and age-related diseases, with focus on type 2 diabetes and Alzheimer’s disease and discuss the possibility of FoxO as a molecular link between aging and disease risks.
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Affiliation(s)
- Shuqi Du
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
| | - Hui Zheng
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA.
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20
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Dai S, Qu L, Li J, Chen Y. Toward a mechanistic understanding of DNA binding by forkhead transcription factors and its perturbation by pathogenic mutations. Nucleic Acids Res 2021; 49:10235-10249. [PMID: 34551426 PMCID: PMC8501956 DOI: 10.1093/nar/gkab807] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 09/01/2021] [Accepted: 09/08/2021] [Indexed: 01/12/2023] Open
Abstract
Forkhead box (FOX) proteins are an evolutionarily conserved family of transcription factors that play numerous regulatory roles in eukaryotes during developmental and adult life. Dysfunction of FOX proteins has been implicated in a variety of human diseases, including cancer, neurodevelopment disorders and genetic diseases. The FOX family members share a highly conserved DNA-binding domain (DBD), which is essential for DNA recognition, binding and function. Since the first FOX structure was resolved in 1993, >30 FOX structures have been reported to date. It is clear now that the structure and DNA recognition mechanisms vary among FOX members; however, a systematic review on this aspect is lacking. In this manuscript, we present an overview of the mechanisms by which FOX transcription factors bind DNA, including protein structures, DNA binding properties and disease-causing mutations. This review should enable a better understanding of FOX family transcription factors for basic researchers and clinicians.
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Affiliation(s)
- Shuyan Dai
- Department of Oncology, NHC Key Laboratory of Cancer Proteomics, Laboratory of Structural Biology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Linzhi Qu
- Department of Oncology, NHC Key Laboratory of Cancer Proteomics, Laboratory of Structural Biology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Jun Li
- Department of Oncology, NHC Key Laboratory of Cancer Proteomics, Laboratory of Structural Biology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Yongheng Chen
- Department of Oncology, NHC Key Laboratory of Cancer Proteomics, Laboratory of Structural Biology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
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21
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Cell Stress Induces Mislocalization of Transcription Factors with Mitochondrial Enrichment. Int J Mol Sci 2021; 22:ijms22168853. [PMID: 34445555 PMCID: PMC8396249 DOI: 10.3390/ijms22168853] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/12/2021] [Accepted: 08/13/2021] [Indexed: 02/03/2023] Open
Abstract
Previous evidence links the formation of extranuclear inclusions of transcription factors, such as ERK, Jun, TDP-43, and REST, with oxidative, endoplasmic-reticulum, proteasomal, and osmotic stress. To further characterize its extranuclear location, we performed a high-content screening based on confocal microscopy and automatized image analyses of an epithelial cell culture treated with hydrogen peroxide, thapsigargin, epoxomicin, or sorbitol at different concentrations and times to recreate the stresses mentioned above. We also performed a subcellular fractionation of the brain from transgenic mice overexpressing the Q331K-mutated TARDBP, and we analyzed the REST-regulated mRNAs. The results show that these nuclear proteins exhibit a mitochondrial location, together with significant nuclear/extranuclear ratio changes, in a protein and stress-specific manner. The presence of these proteins in enriched mitochondrial fractions in vivo confirmed the results of the image analyses. TDP-43 aggregation was associated with alterations in the mRNA levels of the REST target genes involved in calcium homeostasis, apoptosis, and metabolism. In conclusion, cell stress increased the mitochondrial translocation of nuclear proteins, increasing the chance of proteostasis alterations. Furthermore, TDP-43 aggregation impacts REST target genes, disclosing an exciting interaction between these two transcription factors in neurodegenerative processes.
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22
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Du S, Jin F, Maneix L, Gedam M, Xu Y, Catic A, Wang MC, Zheng H. FoxO3 deficiency in cortical astrocytes leads to impaired lipid metabolism and aggravated amyloid pathology. Aging Cell 2021; 20:e13432. [PMID: 34247441 PMCID: PMC8373366 DOI: 10.1111/acel.13432] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 06/02/2021] [Accepted: 06/19/2021] [Indexed: 12/13/2022] Open
Abstract
The rise of life expectancy of the human population is accompanied by the drastic increases of age‐associated diseases, in particular Alzheimer's disease (AD), and underscores the need to understand how aging influences AD development. The Forkhead box O transcription factor 3 (FoxO3) is known to mediate aging and longevity downstream of insulin/insulin‐like growth factor signaling across species. However, its function in the adult brain under physiological and pathological conditions is less understood. Here, we report a region and cell‐type‐specific regulation of FoxO3 in the central nervous system (CNS). We found that FoxO3 protein levels were reduced in the cortex, but not hippocampus, of aged mice. FoxO3 was responsive to insulin/AKT signaling in astrocytes, but not neurons. Using CNS Foxo3‐deficient mice, we reveal that loss of FoxO3 led to cortical astrogliosis and altered lipid metabolism. This is associated with impaired metabolic homoeostasis and β‐amyloid (Aβ) uptake in primary astrocyte cultures. These phenotypes can be reversed by expressing a constitutively active FOXO3 but not a FOXO3 mutant lacking the transactivation domain. Loss of FoxO3 in 5xFAD mice led to exacerbated Aβ pathology and synapse loss and altered local response of astrocytes and microglia in the vicinity of Aβ plaques. Astrocyte‐specific overexpression of FOXO3 displayed opposite effects, suggesting that FoxO3 functions cell autonomously to mediate astrocyte activity and also interacts with microglia to address Aβ pathology. Our studies support a protective role of astroglial FoxO3 against brain aging and AD.
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Affiliation(s)
- Shuqi Du
- Huffington Center on Aging Baylor College of Medicine Houston TX USA
- Department of Molecular and Cellular Biology Baylor College of Medicine Houston TX USA
| | - Feng Jin
- Huffington Center on Aging Baylor College of Medicine Houston TX USA
- Department of Pharmacology and Chemical Biology Baylor College of Medicine Houston TX USA
| | - Laure Maneix
- Huffington Center on Aging Baylor College of Medicine Houston TX USA
- Stem Cells and Regenerative Medicine Center Baylor College of Medicine Houston TX USA
| | - Manasee Gedam
- Huffington Center on Aging Baylor College of Medicine Houston TX USA
- Graduate Program in Translational Biology and Molecular Medicine Baylor College of Medicine Houston TX USA
| | - Yin Xu
- Huffington Center on Aging Baylor College of Medicine Houston TX USA
| | - Andre Catic
- Huffington Center on Aging Baylor College of Medicine Houston TX USA
- Department of Molecular and Cellular Biology Baylor College of Medicine Houston TX USA
- Stem Cells and Regenerative Medicine Center Baylor College of Medicine Houston TX USA
| | - Meng C. Wang
- Huffington Center on Aging Baylor College of Medicine Houston TX USA
- Department of Molecular and Cellular Biology Baylor College of Medicine Houston TX USA
- Department of Pharmacology and Chemical Biology Baylor College of Medicine Houston TX USA
- Department of Molecular and Human Genetics Baylor College of Medicine Houston TX USA
- Howard Hughes Medical Institute Baylor College of Medicine Houston TX USA
| | - Hui Zheng
- Huffington Center on Aging Baylor College of Medicine Houston TX USA
- Department of Molecular and Cellular Biology Baylor College of Medicine Houston TX USA
- Department of Molecular and Human Genetics Baylor College of Medicine Houston TX USA
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Yuen SC, Liang X, Zhu H, Jia Y, Leung SW. Prediction of differentially expressed microRNAs in blood as potential biomarkers for Alzheimer's disease by meta-analysis and adaptive boosting ensemble learning. Alzheimers Res Ther 2021; 13:126. [PMID: 34243793 PMCID: PMC8272278 DOI: 10.1186/s13195-021-00862-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Accepted: 06/17/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND Blood circulating microRNAs that are specific for Alzheimer's disease (AD) can be identified from differentially expressed microRNAs (DEmiRNAs). However, non-reproducible and inconsistent reports of DEmiRNAs hinder biomarker development. The most reliable DEmiRNAs can be identified by meta-analysis. To enrich the pool of DEmiRNAs for potential AD biomarkers, we used a machine learning method called adaptive boosting for miRNA disease association (ABMDA) to identify eligible candidates that share similar characteristics with the DEmiRNAs identified from meta-analysis. This study aimed to identify blood circulating DEmiRNAs as potential AD biomarkers by augmenting meta-analysis with the ABMDA ensemble learning method. METHODS Studies on DEmiRNAs and their dysregulation states were corroborated with one another by meta-analysis based on a random-effects model. DEmiRNAs identified by meta-analysis were collected as positive examples of miRNA-AD pairs for ABMDA ensemble learning. ABMDA identified similar DEmiRNAs according to a set of predefined criteria. The biological significance of all resulting DEmiRNAs was determined by their target genes according to pathway enrichment analyses. The target genes common to both meta-analysis- and ABMDA-identified DEmiRNAs were collected to construct a network to investigate their biological functions. RESULTS A systematic database search found 7841 studies for an extensive meta-analysis, covering 54 independent comparisons of 47 differential miRNA expression studies, and identified 18 reliable DEmiRNAs. ABMDA ensemble learning was conducted based on the meta-analysis results and the Human MicroRNA Disease Database, which identified 10 additional AD-related DEmiRNAs. These 28 DEmiRNAs and their dysregulated pathways were related to neuroinflammation. The dysregulated pathway related to neuronal cell cycle re-entry (CCR) was the only statistically significant pathway of the ABMDA-identified DEmiRNAs. In the biological network constructed from 1865 common target genes of the identified DEmiRNAs, the multiple core ubiquitin-proteasome system, that is involved in neuroinflammation and CCR, was highly connected. CONCLUSION This study identified 28 DEmiRNAs as potential AD biomarkers in blood, by meta-analysis and ABMDA ensemble learning in tandem. The DEmiRNAs identified by meta-analysis and ABMDA were significantly related to neuroinflammation, and the ABMDA-identified DEmiRNAs were related to neuronal CCR.
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Affiliation(s)
- Sze Chung Yuen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, 999078 Macao China
| | - Xiaonan Liang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, 999078 Macao China
| | - Hongmei Zhu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, 999078 Macao China
| | - Yongliang Jia
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, 999078 Macao China
- BGI College & Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan China
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan China
| | - Siu-wai Leung
- Shenzhen Institute of Artificial Intelligence and Robotics for Society, Shenzhen, China
- Edinburgh Bayes Centre for AI Research in Shenzhen, College of Science and Engineering, University of Edinburgh, Edinburgh, Scotland, UK
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24
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Li F, Lo TY, Miles L, Wang Q, Noristani HN, Li D, Niu J, Trombley S, Goldshteyn JI, Wang C, Wang S, Qiu J, Pogoda K, Mandal K, Brewster M, Rompolas P, He Y, Janmey PA, Thomas GM, Li S, Song Y. The Atr-Chek1 pathway inhibits axon regeneration in response to Piezo-dependent mechanosensation. Nat Commun 2021; 12:3845. [PMID: 34158506 PMCID: PMC8219705 DOI: 10.1038/s41467-021-24131-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 05/25/2021] [Indexed: 02/05/2023] Open
Abstract
Atr is a serine/threonine kinase, known to sense single-stranded DNA breaks and activate the DNA damage checkpoint by phosphorylating Chek1, which inhibits Cdc25, causing cell cycle arrest. This pathway has not been implicated in neuroregeneration. We show that in Drosophila sensory neurons removing Atr or Chek1, or overexpressing Cdc25 promotes regeneration, whereas Atr or Chek1 overexpression, or Cdc25 knockdown impedes regeneration. Inhibiting the Atr-associated checkpoint complex in neurons promotes regeneration and improves synapse/behavioral recovery after CNS injury. Independent of DNA damage, Atr responds to the mechanical stimulus elicited during regeneration, via the mechanosensitive ion channel Piezo and its downstream NO signaling. Sensory neuron-specific knockout of Atr in adult mice, or pharmacological inhibition of Atr-Chek1 in mammalian neurons in vitro and in flies in vivo enhances regeneration. Our findings reveal the Piezo-Atr-Chek1-Cdc25 axis as an evolutionarily conserved inhibitory mechanism for regeneration, and identify potential therapeutic targets for treating nervous system trauma.
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Affiliation(s)
- Feng Li
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Tsz Y Lo
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Leann Miles
- The Graduate Group in Biochemistry and Molecular Biophysics, University of Pennsylvania, Philadelphia, PA, USA
| | - Qin Wang
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Harun N Noristani
- Shriners Hospitals Pediatric Research Center (Center for Neurorehabilitation and Neural Repair), Temple University School of Medicine, Philadelphia, PA, USA
- Department of Anatomy and Cell Biology, Temple University School of Medicine, Philadelphia, PA, USA
| | - Dan Li
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Jingwen Niu
- Shriners Hospitals Pediatric Research Center (Center for Neurorehabilitation and Neural Repair), Temple University School of Medicine, Philadelphia, PA, USA
| | - Shannon Trombley
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Jessica I Goldshteyn
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Chuxi Wang
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Shuchao Wang
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Jingyun Qiu
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Katarzyna Pogoda
- Institute for Medicine and Engineering, University of Pennsylvania, Philadelphia, PA, USA
- Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland
| | - Kalpana Mandal
- Institute for Medicine and Engineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Megan Brewster
- Department of Dermatology, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Ye He
- The City University of New York, Graduate Center - Advanced Science Research Center, Neuroscience Initiative, New York, NY, USA
| | - Paul A Janmey
- Institute for Medicine and Engineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Gareth M Thomas
- Shriners Hospitals Pediatric Research Center (Center for Neurorehabilitation and Neural Repair), Temple University School of Medicine, Philadelphia, PA, USA
- Department of Anatomy and Cell Biology, Temple University School of Medicine, Philadelphia, PA, USA
| | - Shuxin Li
- Shriners Hospitals Pediatric Research Center (Center for Neurorehabilitation and Neural Repair), Temple University School of Medicine, Philadelphia, PA, USA
- Department of Anatomy and Cell Biology, Temple University School of Medicine, Philadelphia, PA, USA
| | - Yuanquan Song
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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25
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Rana T, Behl T, Sehgal A, Mehta V, Singh S, Sharma N, Bungau S. Elucidating the Possible Role of FoxO in Depression. Neurochem Res 2021; 46:2761-2775. [PMID: 34075521 DOI: 10.1007/s11064-021-03364-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 05/23/2021] [Accepted: 05/25/2021] [Indexed: 12/21/2022]
Abstract
Forkhead box-O (FoxO) transcriptional factors perform essential functions in several physiological and biological processes. Recent studies have shown that FoxO is implicated in the pathophysiology of depression. Changes in the upstream mediators of FoxOs including brain-derived neurotrophic factor (BDNF) and protein kinase B have been associated with depressive disorder and the antidepressant agents are known to alter the phosphorylation of FoxOs. Moreover, FoxOs might be regulated by serotonin or noradrenaline signaling and the hypothalamic-pituitary-adrenal (HPA)-axis,both of them are associated with the development of the depressive disorder. FoxO also regulates neural morphology, synaptogenesis, and neurogenesis in the hippocampus, which accounts for the pathogenesis of the depressive disorder. The current article underlined the potential functions of FoxOs in the etiology of depressive disorder and formulate few essential proposals for further investigation. The review also proposes that FoxO and its signal pathway might establish possible therapeutic mediators for the management of depressive disorder.
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Affiliation(s)
- Tarapati Rana
- Chitkara College of Pharmacy, Chitkara University, Chandigarh, Punjab, India.,Government Pharmacy College, Seraj, Mandi, Himachal Pradesh, India
| | - Tapan Behl
- Chitkara College of Pharmacy, Chitkara University, Chandigarh, Punjab, India.
| | - Aayush Sehgal
- Chitkara College of Pharmacy, Chitkara University, Chandigarh, Punjab, India
| | - Vineet Mehta
- Government College of Pharmacy, Rohru, Distt., Shimla, Himachal Pradesh, India
| | - Sukhbir Singh
- Chitkara College of Pharmacy, Chitkara University, Chandigarh, Punjab, India
| | - Neelam Sharma
- Chitkara College of Pharmacy, Chitkara University, Chandigarh, Punjab, India
| | - Simona Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, Oradea, Romania
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26
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Lin Y, Wang F, Cheng L, Fang Z, Shen G. Identification of Key Biomarkers and Immune Infiltration in Sciatic Nerve of Diabetic Neuropathy BKS-db/db Mice by Bioinformatics Analysis. Front Pharmacol 2021; 12:682005. [PMID: 34122109 PMCID: PMC8187920 DOI: 10.3389/fphar.2021.682005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 05/10/2021] [Indexed: 12/21/2022] Open
Abstract
Diabetic neuropathy (DN) is one of the chronic complications of diabetes which can cause severe harm to patients. In order to determine the key genes and pathways related to the pathogenesis of DN, we downloaded the microarray data set GSE27382 from Gene Expression Omnibus (GEO) and adopted bioinformatics methods for comprehensive analysis, including functional enrichment, construction of PPI networks, central genes screening, TFs-target interaction analysis, and evaluation of immune infiltration characteristics. Finally, we examined quantitative real- time PCR (qPCR) to validate the expression of hub genes. A total of 318 differentially expressed genes (DEGs) were identified, among which 125 upregulated DEGs were enriched in the mitotic nuclear division, extracellular region, immunoglobulin receptor binding, and p53 signaling pathway, while 193 downregulated DEGs were enriched in ion transport, membrane, synapse, sodium channel activity, and retrograde endocannabinoid signaling. GSEA plots showed that condensed nuclear chromosome kinetochore were the most significant enriched gene set positively correlated with the DN group. Importantly, we identified five central genes (Birc5, Bub1, Cdk1, Ccnb2, and Ccnb1), and KEGG pathway analysis showed that the five hub genes were focused on progesterone-mediated oocyte maturation, cell cycle, and p53 signaling pathway. The proportion of immune cells from DN tissue and normal group showed significant individual differences. In DN samples, T cells CD4 memory resting and dendritic cells resting accounted for a higher proportion, and macrophage M2 accounted for a lower proportion. In addition, all five central genes showed consistent correlation with immune cell infiltration levels. qPCR showed the same expression trend of five central genes as in our analysis. Our research identified key genes related to differential genes and immune infiltration related to the pathogenesis of DN and provided new diagnostic and potential therapeutic targets for DN.
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Affiliation(s)
- Yixuan Lin
- Graduate School of Anhui University of Chinese Medicine, Hefei, China
| | - Fanjing Wang
- Graduate School of Anhui University of Chinese Medicine, Hefei, China
| | - Lianzhi Cheng
- Graduate School of Anhui University of Chinese Medicine, Hefei, China
| | - Zhaohui Fang
- Department of Endocrinology, The First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, China.,Anhui Academic of Traditional Chinese Medicine Diabetes Research Institute, Hefei, China
| | - Guoming Shen
- Graduate School of Anhui University of Chinese Medicine, Hefei, China
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27
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Foxo1 selectively regulates static mechanical pain by interacting with Nav1.7. Pain 2021; 162:490-502. [PMID: 32868747 DOI: 10.1097/j.pain.0000000000002055] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 08/14/2020] [Indexed: 02/07/2023]
Abstract
ABSTRACT Mechanical allodynia is a debilitating condition for millions of patients with chronic pain. Mechanical allodynia can manifest in distinct forms, including brush-evoked dynamic and filament-evoked static allodynia. In the nervous system, the forkhead protein Foxo1 plays a critical role in neuronal structures and functions. However, the role of Foxo1 in the somatosensory signal remains unclear. Here, we found that Foxo1 selectively regulated static mechanical pain. Foxo1 knockdown decreased sensitivity to static mechanical stimuli in normal rats and attenuated static mechanical allodynia in rat models for neuropathic, inflammatory, and chemotherapy pain. Conversely, Foxo1 overexpression selectively enhanced sensitivity to static mechanical stimuli and provoked static mechanical allodynia. Furthermore, Foxo1 interacted with voltage-gated sodium Nav1.7 channels and increased the Nav1.7 current density by accelerating activation rather than by changing the expression of Nav1.7 in dorsal root ganglia neurons. In addition, the serum level of Foxo1 was found to be increased in chronic pain patients and to be positively correlated with the severity of chronic pain. Altogether, our findings suggest that serum Foxo1 level could be used as a biological marker for prediction and diagnosis of chronic pain. Moreover, selective blockade of Foxo1/Nav1.7 interaction may offer a new therapeutic approach in patients with mechanical pain.
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28
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Zhang X, Jiang L, Liu H. Forkhead Box Protein O1: Functional Diversity and Post-Translational Modification, a New Therapeutic Target? DRUG DESIGN DEVELOPMENT AND THERAPY 2021; 15:1851-1860. [PMID: 33976536 PMCID: PMC8106445 DOI: 10.2147/dddt.s305016] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 04/19/2021] [Indexed: 11/23/2022]
Abstract
Forkhead box protein O1 (FoXO1) is a transcription factor involved in the regulation of a wide variety of physiological process including glucose metabolism, lipogenesis, bone mass, apoptosis, and autophagy. FoXO1 dysfunction is involved in the pathophysiology of various diseases including metabolic diseases, atherosclerosis, and tumors. FoXO1 activity is regulated in response to different physiological or pathogenic conditions by changes in protein expression and post-translational modifications. Various modifications cooperate to regulate FoXO1 activity and FoXO1 target gene transcription. In this review, we summarize how different post-translational modifications regulate FoXO1 physiological function, which may provide new insights for drug design and development.
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Affiliation(s)
- Xiaojun Zhang
- Department of Cardiology, Shandong Rongjun General Hospital, Jinan, 250013, People's Republic of China
| | - Lusheng Jiang
- Department of Emergency, Shandong Rongjun General Hospital, Jinan, 250013, People's Republic of China
| | - Huimin Liu
- Blood Purification Center, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250011, People's Republic of China
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29
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Ding L, Ning J, Wang Q, Lu B, Ke H. Retracted: Sevoflurane improves nerve regeneration and repair of neurological deficit in brain damage rats via microRNA-490-5p/CDK1 axis. Life Sci 2021; 271:119111. [PMID: 33513398 DOI: 10.1016/j.lfs.2021.119111] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 01/16/2021] [Accepted: 01/19/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND Sevoflurane (Sevo) is neuroprotective in brain damage, thus our objective was to further investigate the impact of Sevo treatment on nerve regeneration and repair of neurological deficit in brain damage rats by regulating miR-490-5p and cyclin-dependent kinases 1 (CDK1). METHODS The rat middle cerebral artery occlusion model was established. miR-490-5p and CDK1 levels in brain tissues were tested. The behavioral changes, the number of glial fibrillary acidic protein (GFAP) positive cells, ionized calcium-binding adapter molecule-1 (Iba-1) and Nestin mRNA expression, the survival and apoptosis of neurons in peripheral tissues of infarct areas were detected by a series of assays. Furthermore, the target relationship between miR-490-5p and CDK1 was verified. RESULTS miR-490-5p was reduced and CDK1 was raised in brain tissues of brain damage rats. Sevo raised miR-490-5p and decreased CDK1 to improve neurological deficits, reduce apoptotic neurons, suppress expression levels of GFAP and Iba-1, and increase Nestin expression and the number of surviving neurons in peripheral tissue in infarct area, and alleviate the pathological changes of brain tissues of brain damage rats. CDK1 was negatively regulated by miR-490-5p. CONCLUSION Our study presents that Sevo treatment is involved in neurogenesis and repair of neurological deficit of brain damage rats via up-regulating miR-490-5p and inhibiting CDK1.
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Affiliation(s)
- Lingling Ding
- Department of Anesthesiology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China.
| | - Jiaqi Ning
- Department of Anesthesiology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China
| | - Qi Wang
- Department of Anesthesiology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China
| | - Bin Lu
- Department of Anesthesiology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China
| | - Hai Ke
- Department of Anesthesiology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China
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30
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Abstract
FOXO proteins are transcription factors that are involved in numerous physiological processes and in various pathological conditions, including cardiovascular disease, cancer, diabetes and chronic neurological diseases. For example, FOXO proteins are context-dependent tumour suppressors that are frequently inactivated in human cancers, and FOXO3 is the second most replicated gene associated with extreme human longevity. Therefore, pharmacological manipulation of FOXO proteins is a promising approach to developing therapeutics for cancer and for healthy ageing. In this Review, we overview the role of FOXO proteins in health and disease and discuss the pharmacological approaches to modulate FOXO function.
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31
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Marlier Q, D'aes T, Verteneuil S, Vandenbosch R, Malgrange B. Core cell cycle machinery is crucially involved in both life and death of post-mitotic neurons. Cell Mol Life Sci 2020; 77:4553-4571. [PMID: 32476056 PMCID: PMC11105064 DOI: 10.1007/s00018-020-03548-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 04/23/2020] [Accepted: 05/12/2020] [Indexed: 12/12/2022]
Abstract
A persistent dogma in neuroscience supported the idea that terminally differentiated neurons permanently withdraw from the cell cycle. However, since the late 1990s, several studies have shown that cell cycle proteins are expressed in post-mitotic neurons under physiological conditions, indicating that the cell cycle machinery is not restricted to proliferating cells. Moreover, many studies have highlighted a clear link between cell cycle-related proteins and neurological disorders, particularly relating to apoptosis-induced neuronal death. Indeed, cell cycle-related proteins can be upregulated or overactivated in post-mitotic neurons in case of acute or degenerative central nervous system disease. Given the considerable lack of effective treatments for age-related neurological disorders, new therapeutic approaches targeting the cell cycle machinery might thus be considered. This review aims at summarizing current knowledge about the role of the cell cycle machinery in post-mitotic neurons in healthy and pathological conditions.
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Affiliation(s)
- Quentin Marlier
- Developmental Neurobiology Unit, GIGA Stem Cells/Neurosciences, University of Liège, Quartier Hopital (CHU), Avenue Hippocrate, 15, 4000, Liege, Belgium
| | - Tine D'aes
- Developmental Neurobiology Unit, GIGA Stem Cells/Neurosciences, University of Liège, Quartier Hopital (CHU), Avenue Hippocrate, 15, 4000, Liege, Belgium
| | - Sébastien Verteneuil
- Developmental Neurobiology Unit, GIGA Stem Cells/Neurosciences, University of Liège, Quartier Hopital (CHU), Avenue Hippocrate, 15, 4000, Liege, Belgium
| | - Renaud Vandenbosch
- Developmental Neurobiology Unit, GIGA Stem Cells/Neurosciences, University of Liège, Quartier Hopital (CHU), Avenue Hippocrate, 15, 4000, Liege, Belgium
| | - Brigitte Malgrange
- Developmental Neurobiology Unit, GIGA Stem Cells/Neurosciences, University of Liège, Quartier Hopital (CHU), Avenue Hippocrate, 15, 4000, Liege, Belgium.
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Abstract
Forkhead box O (FOXO) transcription factors regulate diverse biological processes, affecting development, metabolism, stem cell maintenance and longevity. They have also been increasingly recognised as tumour suppressors through their ability to regulate genes essential for cell proliferation, cell death, senescence, angiogenesis, cell migration and metastasis. Mechanistically, FOXO proteins serve as key connection points to allow diverse proliferative, nutrient and stress signals to converge and integrate with distinct gene networks to control cell fate, metabolism and cancer development. In consequence, deregulation of FOXO expression and function can promote genetic disorders, metabolic diseases, deregulated ageing and cancer. Metastasis is the process by which cancer cells spread from the primary tumour often via the bloodstream or the lymphatic system and is the major cause of cancer death. The regulation and deregulation of FOXO transcription factors occur predominantly at the post-transcriptional and post-translational levels mediated by regulatory non-coding RNAs, their interactions with other protein partners and co-factors and a combination of post-translational modifications (PTMs), including phosphorylation, acetylation, methylation and ubiquitination. This review discusses the role and regulation of FOXO proteins in tumour initiation and progression, with a particular emphasis on cancer metastasis. An understanding of how signalling networks integrate with the FOXO transcription factors to modulate their developmental, metabolic and tumour-suppressive functions in normal tissues and in cancer will offer a new perspective on tumorigenesis and metastasis, and open up therapeutic opportunities for malignant diseases.
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Affiliation(s)
- Yannasittha Jiramongkol
- Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, London, W12 0NN, UK
| | - Eric W-F Lam
- Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, London, W12 0NN, UK.
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33
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Du B, Jin N, Zhu X, Lu D, Jin C, Li Z, Han C, Zhang Y, Lai D, Liu K, Wei R. A prospective study of serum metabolomic and lipidomic changes in myopic children and adolescents. Exp Eye Res 2020; 199:108182. [PMID: 32781198 DOI: 10.1016/j.exer.2020.108182] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 07/24/2020] [Accepted: 08/02/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND Myopia is a prevalent eye disorder, especially among children and adolescents in eastern Asian countries. Multiple measures have already been taken to prevent and treat myopia, including atropine and dopamine. However, the serum metabolic picture of myopia has not yet been studied as a whole and remains largely unclear. In this paper, a prospective and panoramic study was carried out to find out the whole serum metabolomic and lipidomic picture of myopia. METHODS With untargeted mass spectrometry (MS), myopia among 211 children and adolescents was studied. The MS features were first grouped across the samples. Then, compound annotation was carried out based on these features. Finally, the metabolite features were mapped to pathways, whose biological functions in myopia were studied and discussed. RESULTS A total of 275 metabolite features were derived from 92 aligned MS peak groups with significant fold changes, and then mapped to 33 pathways. By a comprehensive consideration of significance, fold change, importance score and appearance in different omics, 9 pathways were selected, and their biological functions were further analyzed. Among these selected pathways, 5 pathways were related with oxidative stress, a validated phenomenon during myopia development, while 5 pathways were related with dopamine receptor D2, whose molecular function in myopia treatment is not fully understood. A total of 177 metabolite features from 45 peak groups were related with the studied pathways. CONCLUSION This prospective study shed light on the whole picture of metabolomic mechanism underlying myopia and provided guidance to further elucidation of compounds and pathways in this whole picture.
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Affiliation(s)
- Bei Du
- Tianjin Key Laboratory of Retinal Functions and Diseases, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Nan Jin
- Tianjin Key Laboratory of Retinal Functions and Diseases, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Xiurui Zhu
- Tianjin Yunjian Medical Technology Co., Ltd., Tianjin, China; Department of Cardiothoracic Surgery, School of Medicine, Stanford University, CA, USA
| | - Daqian Lu
- Tianjin Key Laboratory of Retinal Functions and Diseases, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Chengcheng Jin
- Tianjin Key Laboratory of Retinal Functions and Diseases, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Zhen Li
- Tianjin Yunjian Medical Technology Co., Ltd., Tianjin, China; School of Electrical Engineering, Southeast University, Jiangsu Province, China
| | - Chunle Han
- Tianjin Yunjian Medical Technology Co., Ltd., Tianjin, China
| | - Yani Zhang
- Tianjin Yunjian Medical Technology Co., Ltd., Tianjin, China
| | - Donghai Lai
- Tianjin Yunjian Medical Technology Co., Ltd., Tianjin, China
| | - Kang Liu
- Tianjin Yunjian Medical Technology Co., Ltd., Tianjin, China.
| | - Ruihua Wei
- Tianjin Key Laboratory of Retinal Functions and Diseases, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China.
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34
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Caldez MJ, Bjorklund M, Kaldis P. Cell cycle regulation in NAFLD: when imbalanced metabolism limits cell division. Hepatol Int 2020; 14:463-474. [PMID: 32578019 PMCID: PMC7366567 DOI: 10.1007/s12072-020-10066-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 06/06/2020] [Indexed: 12/12/2022]
Abstract
Cell division is essential for organismal growth and tissue homeostasis. It is exceptionally significant in tissues chronically exposed to intrinsic and external damage, like the liver. After decades of studying the regulation of cell cycle by extracellular signals, there are still gaps in our knowledge on how these two interact with metabolic pathways in vivo. Studying the cross-talk of these pathways has direct clinical implications as defects in cell division, signaling pathways, and metabolic homeostasis are frequently observed in liver diseases. In this review, we will focus on recent reports which describe various functions of cell cycle regulators in hepatic homeostasis. We will describe the interplay between the cell cycle and metabolism during liver regeneration after acute and chronic damage. We will focus our attention on non-alcoholic fatty liver disease, especially non-alcoholic steatohepatitis. The global incidence of non-alcoholic fatty liver disease is increasing exponentially. Therefore, understanding the interplay between cell cycle regulators and metabolism may lead to the discovery of novel therapeutic targets amenable to intervention.
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Affiliation(s)
- Matias J Caldez
- WPI Immunology Frontiers Research Centre, Osaka University, 3-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.
| | - Mikael Bjorklund
- Zhejiang University-University of Edinburgh (ZJU-UoE) Institute and 2nd Affiliated Hospital, Zhejiang University School of Medicine, 718 East Haizhou Rd., Haining, 314400, Zhejiang, People's Republic of China
| | - Philipp Kaldis
- Department of Clinical Sciences, Clinical Research Centre (CRC), Lund University, Box 50332, 202 13, Malmö, Sweden.
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35
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Guo Y, Ning W, Jiang P, Lin S, Wang C, Tan X, Yao L, Peng D, Xue Y. GPS-PBS: A Deep Learning Framework to Predict Phosphorylation Sites that Specifically Interact with Phosphoprotein-Binding Domains. Cells 2020; 9:cells9051266. [PMID: 32443803 PMCID: PMC7290655 DOI: 10.3390/cells9051266] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/17/2020] [Accepted: 05/18/2020] [Indexed: 12/13/2022] Open
Abstract
Protein phosphorylation is essential for regulating cellular activities by modifying substrates at specific residues, which frequently interact with proteins containing phosphoprotein-binding domains (PPBDs) to propagate the phosphorylation signaling into downstream pathways. Although massive phosphorylation sites (p-sites) have been reported, most of their interacting PPBDs are unknown. Here, we collected 4458 known PPBD-specific binding p-sites (PBSs), considerably improved our previously developed group-based prediction system (GPS) algorithm, and implemented a deep learning plus transfer learning strategy for model training. Then, we developed a new online service named GPS-PBS, which can hierarchically predict PBSs of 122 single PPBD clusters belonging to two groups and 16 families. By comparison, GPS-PBS achieved a highly competitive accuracy against other existing tools. Using GPS-PBS, we predicted 371,018 mammalian p-sites that potentially interact with at least one PPBD, and revealed that various PPBD-containing proteins (PPCPs) and protein kinases (PKs) can simultaneously regulate the same p-sites to orchestrate important pathways, such as the PI3K-Akt signaling pathway. Taken together, we anticipate GPS-PBS can be a great help for further dissecting phosphorylation signaling networks.
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Affiliation(s)
- Yaping Guo
- Key Laboratory of Molecular Biophysics of Ministry of Education, Hubei Bioinformatics and Molecular Imaging Key Laboratory, Center for Artificial Intelligence Biology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Wanshan Ning
- Key Laboratory of Molecular Biophysics of Ministry of Education, Hubei Bioinformatics and Molecular Imaging Key Laboratory, Center for Artificial Intelligence Biology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Peiran Jiang
- Key Laboratory of Molecular Biophysics of Ministry of Education, Hubei Bioinformatics and Molecular Imaging Key Laboratory, Center for Artificial Intelligence Biology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Shaofeng Lin
- Key Laboratory of Molecular Biophysics of Ministry of Education, Hubei Bioinformatics and Molecular Imaging Key Laboratory, Center for Artificial Intelligence Biology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Chenwei Wang
- Key Laboratory of Molecular Biophysics of Ministry of Education, Hubei Bioinformatics and Molecular Imaging Key Laboratory, Center for Artificial Intelligence Biology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Xiaodan Tan
- Key Laboratory of Molecular Biophysics of Ministry of Education, Hubei Bioinformatics and Molecular Imaging Key Laboratory, Center for Artificial Intelligence Biology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Lan Yao
- Key Laboratory of Molecular Biophysics of Ministry of Education, Hubei Bioinformatics and Molecular Imaging Key Laboratory, Center for Artificial Intelligence Biology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Di Peng
- Key Laboratory of Molecular Biophysics of Ministry of Education, Hubei Bioinformatics and Molecular Imaging Key Laboratory, Center for Artificial Intelligence Biology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Yu Xue
- Key Laboratory of Molecular Biophysics of Ministry of Education, Hubei Bioinformatics and Molecular Imaging Key Laboratory, Center for Artificial Intelligence Biology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
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36
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Life in the (Pluripotent) Fast Lane: Cdk1 Preserves the Epigenome to Maintain Pluripotency. Mol Cell 2020; 78:374-375. [PMID: 32386539 DOI: 10.1016/j.molcel.2020.04.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Michowski and colleagues (2020) engineered analog-sensitive Cdk1 knockin mice to identify Cdk1 targets in embryonic stem cells, which led them to discover a novel function for Cdk1 in shaping the epigenetic landscape by direct regulation of epigenetic modulators.
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37
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Xia P, Chen J, Liu Y, Fletcher M, Jensen BC, Cheng Z. Doxorubicin induces cardiomyocyte apoptosis and atrophy through cyclin-dependent kinase 2-mediated activation of forkhead box O1. J Biol Chem 2020; 295:4265-4276. [PMID: 32075913 PMCID: PMC7105316 DOI: 10.1074/jbc.ra119.011571] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 02/17/2020] [Indexed: 12/29/2022] Open
Abstract
Recent clinical investigations indicate that anthracycline-based chemotherapies induce early decline in heart mass in cancer patients. Heart mass decline may be caused by a decrease in cardiac cell number because of increased cell death or by a reduction in cell size because of atrophy. We previously reported that an anthracycline, doxorubicin (DOX), induces apoptotic death of cardiomyocytes by activating cyclin-dependent kinase 2 (CDK2). However, the signaling pathway downstream of CDK2 remains to be characterized, and it is also unclear whether the same pathway mediates cardiac atrophy. Here we demonstrate that DOX exposure induces CDK2-dependent phosphorylation of the transcription factor forkhead box O1 (FOXO1) at Ser-249, leading to transcription of its proapoptotic target gene, Bcl-2-interacting mediator of cell death (Bim). In cultured cardiomyocytes, treatment with the FOXO1 inhibitor AS1842856 or transfection with FOXO1-specific siRNAs protected against DOX-induced apoptosis and mitochondrial damage. Oral administration of AS1842856 in mice abrogated apoptosis and prevented DOX-induced cardiac dysfunction. Intriguingly, pharmacological FOXO1 inhibition also attenuated DOX-induced cardiac atrophy, likely because of repression of muscle RING finger 1 (MuRF1), a proatrophic FOXO1 target gene. In conclusion, DOX exposure induces CDK2-dependent FOXO1 activation, resulting in cardiomyocyte apoptosis and atrophy. Our results identify FOXO1 as a promising drug target for managing DOX-induced cardiotoxicity. We propose that FOXO1 inhibitors may have potential as cardioprotective therapeutic agents during cancer chemotherapy.
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Affiliation(s)
- Peng Xia
- Department of Pharmaceutical Sciences, Washington State University, Spokane, Washington 99202-2131
| | - Jingrui Chen
- Department of Pharmaceutical Sciences, Washington State University, Spokane, Washington 99202-2131
| | - Yuening Liu
- Department of Pharmaceutical Sciences, Washington State University, Spokane, Washington 99202-2131
| | - Maya Fletcher
- Department of Biology, Gonzaga University, Spokane, Washington 99258
| | - Brian C Jensen
- Division of Cardiology, University of North Carolina School of Medicine, Chapel Hill, North Carolina 27599-7075
| | - Zhaokang Cheng
- Department of Pharmaceutical Sciences, Washington State University, Spokane, Washington 99202-2131.
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38
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Yasukawa M, Ando Y, Yamashita T, Matsuda Y, Shoji S, Morioka MS, Kawaji H, Shiozawa K, Machitani M, Abe T, Yamada S, Kaneko MK, Kato Y, Furuta Y, Kondo T, Shirouzu M, Hayashizaki Y, Kaneko S, Masutomi K. CDK1 dependent phosphorylation of hTERT contributes to cancer progression. Nat Commun 2020; 11:1557. [PMID: 32214089 PMCID: PMC7096428 DOI: 10.1038/s41467-020-15289-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 03/03/2020] [Indexed: 12/24/2022] Open
Abstract
The telomerase reverse transcriptase is upregulated in the majority of human cancers and contributes directly to cell transformation. Here we report that hTERT is phosphorylated at threonine 249 during mitosis by the serine/threonine kinase CDK1. Clinicopathological analyses reveal that phosphorylation of hTERT at threonine 249 occurs more frequently in aggressive cancers. Using CRISPR/Cas9 genome editing, we introduce substitution mutations at threonine 249 in the endogenous hTERT locus and find that phosphorylation of threonine 249 is necessary for hTERT-mediated RNA dependent RNA polymerase (RdRP) activity but dispensable for reverse transcriptase and terminal transferase activities. Cap Analysis of Gene Expression (CAGE) demonstrates that hTERT phosphorylation at 249 regulates the expression of specific genes that are necessary for cancer cell proliferation and tumor formation. These observations indicate that phosphorylation at threonine 249 regulates hTERT RdRP and contributes to cancer progression in a telomere independent manner. Regulated telomerase reverse transcriptase (hTERT) activity is common in human tumors. Here, the authors show that hTERT is phosphorylated by CDK1 and that this event is necessary for hTERT-mediated RNA dependent RNA polymerase activity but not for reverse transcriptase and terminal transferase activities.
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Affiliation(s)
- Mami Yasukawa
- Division of Cancer Stem Cell, National Cancer Center Research Institute, Tokyo, 104-0045, Japan
| | - Yoshinari Ando
- Division of Cancer Stem Cell, National Cancer Center Research Institute, Tokyo, 104-0045, Japan
| | - Taro Yamashita
- Department of Gastroenterology, Kanazawa University Graduate School of Medical Science, Kanazawa, 920-8641, Japan
| | - Yoko Matsuda
- Department of Pathology, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo, 173-0015, Japan.,Oncology Pathology, Department of Pathology and Host-Defense, Kagawa University, Kagawa, 761-0793, Japan
| | - Shisako Shoji
- Laboratory for Protein Functional and Structural Biology, RIKEN Center for Biosystems Dynamics Research, Yokohama, 230-0045, Japan
| | - Masaki Suimye Morioka
- Preventive Medicine and Applied Genomics Unit, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
| | - Hideya Kawaji
- Preventive Medicine and Applied Genomics Unit, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan.,RIKEN Preventive Medicine and Diagnosis Innovation Program, Wako, 351-0198, Japan
| | - Kumiko Shiozawa
- Division of Rare Cancer Research, National Cancer Center Research Institute, Tokyo, 104-0045, Japan
| | - Mitsuhiro Machitani
- Division of Cancer Stem Cell, National Cancer Center Research Institute, Tokyo, 104-0045, Japan
| | - Takaya Abe
- Animal Resource Development Unit, RIKEN Center for Life Science Technologies, Kobe, 650-0047, Japan.,Genetic Engineering Team, RIKEN Center for Life Science Technologies, Kobe, 650-0047, Japan
| | - Shinji Yamada
- Department of Antibody Drug Development, Tohoku University Graduate School of Medicine, Sendai, 980-8575, Japan
| | - Mika K Kaneko
- Department of Antibody Drug Development, Tohoku University Graduate School of Medicine, Sendai, 980-8575, Japan
| | - Yukinari Kato
- Department of Antibody Drug Development, Tohoku University Graduate School of Medicine, Sendai, 980-8575, Japan.,New Industry Creation Hatchery Center, Tohoku University, Sendai, 980-8579, Japan
| | - Yasuhide Furuta
- Animal Resource Development Unit, RIKEN Center for Life Science Technologies, Kobe, 650-0047, Japan.,Genetic Engineering Team, RIKEN Center for Life Science Technologies, Kobe, 650-0047, Japan
| | - Tadashi Kondo
- Division of Rare Cancer Research, National Cancer Center Research Institute, Tokyo, 104-0045, Japan
| | - Mikako Shirouzu
- Laboratory for Protein Functional and Structural Biology, RIKEN Center for Biosystems Dynamics Research, Yokohama, 230-0045, Japan
| | | | - Shuichi Kaneko
- Department of Gastroenterology, Kanazawa University Graduate School of Medical Science, Kanazawa, 920-8641, Japan
| | - Kenkichi Masutomi
- Division of Cancer Stem Cell, National Cancer Center Research Institute, Tokyo, 104-0045, Japan.
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Cheng J, Wang S, Dong Y, Yuan Z. The Role and Regulatory Mechanism of Hippo Signaling Components in the Neuronal System. Front Immunol 2020; 11:281. [PMID: 32140159 PMCID: PMC7042394 DOI: 10.3389/fimmu.2020.00281] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 02/04/2020] [Indexed: 01/07/2023] Open
Abstract
The Hippo signaling pathway, an evolutionarily conserved protein kinase cascade, plays a critical role in controlling organ size, cancer development, and tissue regeneration. Recently, mounting evidence has suggested that Hippo signaling also has an important role in regulating immunity, including innate and adaptive immune activation. In the neuronal system, Our laboratory results, together with those from other studies, demonstrate that the Hippo signaling pathway is involved in neuroinflammation, neuronal cell differentiation, and neuronal death. In the present review, we summarize the recent findings pertaining to the function and regulatory mechanism of Hippo signaling components in the neuronal system, implicating the potential of Hippo signaling as a therapeutic target for the treatment of neuronal system diseases.
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Affiliation(s)
- Jinbo Cheng
- Center on Translational Neuroscience, College of Life and Environmental Science, Minzu University of China, Beijing, China.,The Brain Science Center, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Shukun Wang
- The Brain Science Center, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Yuan Dong
- Department of Biochemistry, Medical College, Qingdao University, Qingdao, China
| | - Zengqiang Yuan
- The Brain Science Center, Beijing Institute of Basic Medical Sciences, Beijing, China
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40
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Chen T, Wang Y, Yang Y, Yu K, Cao X, Su F, Xu H, Peng Y, Hu Y, Qian F, Wang Z. Gramicidin inhibits human gastric cancer cell proliferation, cell cycle and induced apoptosis. Biol Res 2019; 52:57. [PMID: 31767027 PMCID: PMC6878685 DOI: 10.1186/s40659-019-0264-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 11/01/2019] [Indexed: 11/10/2022] Open
Abstract
Background Gastric cancer is a common malignant tumor with high morbidity and mortality worldwide, which seriously affects human health. Gramicidin is a short peptide antibiotic which could be used for treating infection induced by bacteria or fungi. However, the anti-cancer effect of gramicidin on gastric cancer cells and its underlying mechanism remains largely unknown. Results Gastric cancer cells SGC-7901, BGC-823 and normal gastric mucosal cells GES-1 were treated with different concentrations of gramicidin respectively. The results of CCK-8 experiment revealed cellular toxicity of gramicidin to cancer cells while cell colony formation assay showed that gramicidin significantly inhibited the proliferation of gastric cancer cells, but had little effect on normal gastric mucosal cells. In addition, the wound healing assay showed that gramicidin inhibited the migration of SGC-7901 cell. Meanwhile, apoptosis and cell cycle analysis revealed that gramicidin induced cell apoptosis with G2/M cell cycle inhibition. Furthermore, western blot analysis demonstrated that gramicidin down-regulated the expression of cyclinD1 and Bcl-2 as well as the FoxO1 phosphorylation. Conclusions The current study illustrated the anti-tumor activity of gramicidin on gastric cancer cells, providing a possibility for gramicidin to be applied in clinical practice for the treatment of gastric cancer.
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Affiliation(s)
- Tingting Chen
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Anhui Province Key Laboratory of Translational Cancer Research (Bengbu Medical College), 287 Changhuai Road, Bengbu, 233004, Anhui Province, People's Republic of China
| | - Yong Wang
- Department of General Surgery, Zhoupu Hospital affiliated to Shanghai Health Medical College, Shanghai, 201318, People's Republic of China
| | - Yang Yang
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Anhui Province Key Laboratory of Translational Cancer Research (Bengbu Medical College), 287 Changhuai Road, Bengbu, 233004, Anhui Province, People's Republic of China
| | - Kaikai Yu
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, People's Republic of China
| | - Xiangliao Cao
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Anhui Province Key Laboratory of Translational Cancer Research (Bengbu Medical College), 287 Changhuai Road, Bengbu, 233004, Anhui Province, People's Republic of China
| | - Fang Su
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Anhui Province Key Laboratory of Translational Cancer Research (Bengbu Medical College), 287 Changhuai Road, Bengbu, 233004, Anhui Province, People's Republic of China
| | - Huanbai Xu
- Department of Endocrinology and Metabolism, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200080, People's Republic of China
| | - Yongde Peng
- Department of Endocrinology and Metabolism, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200080, People's Republic of China
| | - Yudong Hu
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, People's Republic of China.
| | - Feng Qian
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Anhui Province Key Laboratory of Translational Cancer Research (Bengbu Medical College), 287 Changhuai Road, Bengbu, 233004, Anhui Province, People's Republic of China. .,Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, People's Republic of China.
| | - Zishu Wang
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Anhui Province Key Laboratory of Translational Cancer Research (Bengbu Medical College), 287 Changhuai Road, Bengbu, 233004, Anhui Province, People's Republic of China.
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41
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Shi M, Wang Z, Ye X, Xie H, Li F, Hu X, Wang Z, Yin C, Zhou Y, Gu Q, Zou J, Zhan L, Yao Y, Yang J, Wei S, Hu R, Guo D, Zhu J, Wang Y, Huang J, Pennacchio F, Strand MR, Chen X. The genomes of two parasitic wasps that parasitize the diamondback moth. BMC Genomics 2019; 20:893. [PMID: 31752718 PMCID: PMC6873472 DOI: 10.1186/s12864-019-6266-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 11/05/2019] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Parasitic insects are well-known biological control agents for arthropod pests worldwide. They are capable of regulating their host's physiology, development and behaviour. However, many of the molecular mechanisms involved in host-parasitoid interaction remain unknown. RESULTS We sequenced the genomes of two parasitic wasps (Cotesia vestalis, and Diadromus collaris) that parasitize the diamondback moth Plutella xylostella using Illumina and Pacbio sequencing platforms. Genome assembly using SOAPdenovo produced a 178 Mb draft genome for C. vestalis and a 399 Mb draft genome for D. collaris. A total set that contained 11,278 and 15,328 protein-coding genes for C. vestalis and D. collaris, respectively, were predicted using evidence (homology-based and transcriptome-based) and de novo prediction methodology. Phylogenetic analysis showed that the braconid C. vestalis and the ichneumonid D. collaris diverged approximately 124 million years ago. These two wasps exhibit gene gains and losses that in some cases reflect their shared life history as parasitic wasps and in other cases are unique to particular species. Gene families with functions in development, nutrient acquisition from hosts, and metabolism have expanded in each wasp species, while genes required for biosynthesis of some amino acids and steroids have been lost, since these nutrients can be directly obtained from the host. Both wasp species encode a relative higher number of neprilysins (NEPs) thus far reported in arthropod genomes while several genes encoding immune-related proteins and detoxification enzymes were lost in both wasp genomes. CONCLUSIONS We present the annotated genome sequence of two parasitic wasps C. vestalis and D. collaris, which parasitize a common host, the diamondback moth, P. xylostella. These data will provide a fundamental source for studying the mechanism of host control and will be used in parasitoid comparative genomics to study the origin and diversification of the parasitic lifestyle.
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Affiliation(s)
- Min Shi
- Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang University, Hangzhou, 310058, China
| | - Zhizhi Wang
- Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang University, Hangzhou, 310058, China
| | - Xiqian Ye
- Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
- State Key Lab of Rice Biology, Zhejiang University, Hangzhou, 310058, China
| | | | - Fei Li
- Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang University, Hangzhou, 310058, China
| | - Xiaoxiao Hu
- BGI-Tech, BGI-Shenzhen, Shenzhen, 518083, China
- Xingzhi College, Zhejiang Normal University, Jinhua, 321000, Zhejiang, China
| | - Zehua Wang
- Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang University, Hangzhou, 310058, China
| | - Chuanlin Yin
- Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang University, Hangzhou, 310058, China
| | - Yuenan Zhou
- Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang University, Hangzhou, 310058, China
| | - Qijuan Gu
- Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang University, Hangzhou, 310058, China
| | - Jiani Zou
- Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang University, Hangzhou, 310058, China
| | - Leqing Zhan
- Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang University, Hangzhou, 310058, China
| | - Yuan Yao
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, China
| | - Jian Yang
- Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang University, Hangzhou, 310058, China
| | - Shujun Wei
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Rongmin Hu
- Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang University, Hangzhou, 310058, China
| | - Dianhao Guo
- Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang University, Hangzhou, 310058, China
| | - Jiangyan Zhu
- Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
- State Key Lab of Rice Biology, Zhejiang University, Hangzhou, 310058, China
| | - Yanping Wang
- Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
- State Key Lab of Rice Biology, Zhejiang University, Hangzhou, 310058, China
| | - Jianhua Huang
- Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China.
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang University, Hangzhou, 310058, China.
| | - Francesco Pennacchio
- Dipartimento di Agraria, Laboratorio di Entomologia "E. Tremblay", Università di Napoli "Federico II", Via Università 100, 80055, Portici, NA, Italy
| | - Michael R Strand
- Department of Entomology, University of Georgia, Athens, GA, 30602, USA
| | - Xuexin Chen
- Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China.
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang University, Hangzhou, 310058, China.
- State Key Lab of Rice Biology, Zhejiang University, Hangzhou, 310058, China.
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Saline M, Badertscher L, Wolter M, Lau R, Gunnarsson A, Jacso T, Norris T, Ottmann C, Snijder A. AMPK and AKT protein kinases hierarchically phosphorylate the N-terminus of the FOXO1 transcription factor, modulating interactions with 14-3-3 proteins. J Biol Chem 2019; 294:13106-13116. [PMID: 31308176 DOI: 10.1074/jbc.ra119.008649] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 07/10/2019] [Indexed: 11/06/2022] Open
Abstract
Forkhead box protein O1 (FOXO1) is a transcription factor involved in various cellular processes such as glucose metabolism, development, stress resistance, and tumor suppression. FOXO1's transcriptional activity is controlled by different environmental cues through a myriad of posttranslational modifications. In response to growth factors, the serine/threonine kinase AKT phosphorylates Thr24 and Ser256 in FOXO1 to stimulate binding of 14-3-3 proteins, causing FOXO1 inactivation. In contrast, low nutrient and energy levels induce FOXO1 activity. AMP-activated protein kinase (AMPK), a master regulator of cellular energy homeostasis, partly mediates this effect through phosphorylation of Ser383 and Thr649 in FOXO1. In this study, we identified Ser22 as an additional AMPK phosphorylation site in FOXO1's N terminus, with Ser22 phosphorylation preventing binding of 14-3-3 proteins. The crystal structure of a FOXO1 peptide in complex with 14-3-3 σ at 2.3 Å resolution revealed that this is a consequence of both steric hindrance and electrostatic repulsion. Furthermore, we found that AMPK-mediated Ser22 phosphorylation impairs Thr24 phosphorylation by AKT in a hierarchical manner. Thus, numerous mechanisms maintain FOXO1 activity via AMPK signaling. AMPK-mediated Ser22 phosphorylation directly and indirectly averts binding of 14-3-3 proteins, whereas phosphorylation of Ser383 and Thr649 complementarily stimulates FOXO1 activity. Our results shed light on a mechanism that integrates inputs from both AMPK and AKT signaling pathways in a small motif to fine-tune FOXO1 transcriptional activity.
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Affiliation(s)
- Maria Saline
- Discovery Biology, Discovery Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Lukas Badertscher
- Discovery Biology, Discovery Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Madita Wolter
- Laboratory of Chemical Biology, Department of Biomedical Engineering, Eindhoven University of Technology and Institute for Complex Molecular Systems, Eindhoven University of Technology, P. O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Roxanne Lau
- Laboratory of Chemical Biology, Department of Biomedical Engineering, Eindhoven University of Technology and Institute for Complex Molecular Systems, Eindhoven University of Technology, P. O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Anders Gunnarsson
- Discovery Biology, Discovery Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Tomas Jacso
- Discovery Biology, Discovery Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Tyrrell Norris
- Discovery Biology, Discovery Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Christian Ottmann
- Laboratory of Chemical Biology, Department of Biomedical Engineering, Eindhoven University of Technology and Institute for Complex Molecular Systems, Eindhoven University of Technology, P. O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Arjan Snijder
- Discovery Biology, Discovery Sciences, R&D, AstraZeneca, Gothenburg, Sweden.
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43
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Roles of forkhead box O (FoxO) transcription factors in neurodegenerative diseases: A panoramic view. Prog Neurobiol 2019; 181:101645. [PMID: 31229499 DOI: 10.1016/j.pneurobio.2019.101645] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 06/03/2019] [Accepted: 06/18/2019] [Indexed: 12/11/2022]
Abstract
Neurodegenerative diseases (NDDs), which are among the most important aging-related diseases, are typically characterized by neuronal damage and a progressive impairment in neurological function during aging. Few effective therapeutic targets for NDDs have been revealed; thus, an understanding of the pathogenesis of NDDs is important. Forkhead box O (FoxO) transcription factors have been implicated in the mechanisms regulating aging and longevity. The functions of FoxOs are regulated by diverse post-translational modifications (e.g., phosphorylation, acetylation, ubiquitination, methylation and glycosylation). FoxOs exert both detrimental and protective effects on NDDs. Therefore, an understanding of the precise function of FoxOs in NDDs will be helpful for developing appropriate treatment strategies. In this review, we first introduce the post-translational modifications of FoxOs. Next, the regulation of FoxO expression and post-translational modifications in the central nervous system (CNS) is described. Afterwards, we analyze and address the important roles of FoxOs in NDDs. Finally, novel potential directions of future FoxO research in NDDs are discussed. This review recapitulates essential facts and questions about the promise of FoxOs in treating NDDs, and it will likely be important for the design of further basic studies and to realize the potential for FoxOs as therapeutic targets in NDDs.
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44
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Chen J, Lu Y, Tian M, Huang Q. Molecular mechanisms of FOXO1 in adipocyte differentiation. J Mol Endocrinol 2019; 62:R239-R253. [PMID: 30780132 DOI: 10.1530/jme-18-0178] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 02/05/2019] [Indexed: 12/14/2022]
Abstract
Forkhead box-O1 (FOXO1) is a downstream target of AKT and plays crucial roles in cell cycle control, apoptosis, metabolism and adipocyte differentiation. It is thought that FOXO1 affects adipocyte differentiation by regulating lipogenesis and cell cycle. With the deepening in the understanding of this field, it is currently believed that FOXO1 translocation between nuclei and cytoplasm is involved in the regulation of FOXO1 activity, thus affecting adipocyte differentiation. Translocation of FOXO1 depends on its post-translational modifications and interactions with 14-3-3. Based on these modifications and interactions, FOXO1 could regulate lipogenesis through PPARγ and the adipocyte cell cycle through p21 and p27. In this review, we aim to provide a comprehensive FOXO1 regulation network in adipocyte differentiation by linking together distinct functions mentioned above to explain their effects on adipocyte differentiation and to emphasize the regulatory role of FOXO1. In addition, we also focus on the novel findings such as the use of miRNAs in FOXO1 regulation and highlight the improvable issues, such as RNA modifications, for future research in the field.
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Affiliation(s)
- Junye Chen
- Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi Province, People's Republic of China
- Nanchang Joint Programme, Queen Mary, University of London, London, UK
| | - Yi Lu
- Key Provincial Laboratory of Basic Pharmacology, Nanchang University, Nanchang, Jiangxi Province, People's Republic of China
- Department of Pharmacology, School of Pharmacy, Nanchang University, Nanchang, Jiangxi Province, People's Republic of China
| | - Mengyuan Tian
- Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi Province, People's Republic of China
- Nanchang Joint Programme, Queen Mary, University of London, London, UK
| | - Qiren Huang
- Key Provincial Laboratory of Basic Pharmacology, Nanchang University, Nanchang, Jiangxi Province, People's Republic of China
- Department of Pharmacology, School of Pharmacy, Nanchang University, Nanchang, Jiangxi Province, People's Republic of China
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Sizek H, Hamel A, Deritei D, Campbell S, Ravasz Regan E. Boolean model of growth signaling, cell cycle and apoptosis predicts the molecular mechanism of aberrant cell cycle progression driven by hyperactive PI3K. PLoS Comput Biol 2019; 15:e1006402. [PMID: 30875364 PMCID: PMC6436762 DOI: 10.1371/journal.pcbi.1006402] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 03/27/2019] [Accepted: 02/12/2019] [Indexed: 02/07/2023] Open
Abstract
The PI3K/AKT signaling pathway plays a role in most cellular functions linked to cancer progression, including cell growth, proliferation, cell survival, tissue invasion and angiogenesis. It is generally recognized that hyperactive PI3K/AKT1 are oncogenic due to their boost to cell survival, cell cycle entry and growth-promoting metabolism. That said, the dynamics of PI3K and AKT1 during cell cycle progression are highly nonlinear. In addition to negative feedback that curtails their activity, protein expression of PI3K subunits has been shown to oscillate in dividing cells. The low-PI3K/low-AKT1 phase of these oscillations is required for cytokinesis, indicating that oncogenic PI3K may directly contribute to genome duplication. To explore this, we construct a Boolean model of growth factor signaling that can reproduce PI3K oscillations and link them to cell cycle progression and apoptosis. The resulting modular model reproduces hyperactive PI3K-driven cytokinesis failure and genome duplication and predicts the molecular drivers responsible for these failures by linking hyperactive PI3K to mis-regulation of Polo-like kinase 1 (Plk1) expression late in G2. To do this, our model captures the role of Plk1 in cell cycle progression and accurately reproduces multiple effects of its loss: G2 arrest, mitotic catastrophe, chromosome mis-segregation / aneuploidy due to premature anaphase, and cytokinesis failure leading to genome duplication, depending on the timing of Plk1 inhibition along the cell cycle. Finally, we offer testable predictions on the molecular drivers of PI3K oscillations, the timing of these oscillations with respect to division, and the role of altered Plk1 and FoxO activity in genome-level defects caused by hyperactive PI3K. Our model is an important starting point for the predictive modeling of cell fate decisions that include AKT1-driven senescence, as well as the non-intuitive effects of drugs that interfere with mitosis.
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Affiliation(s)
- Herbert Sizek
- Biochemistry and Molecular Biology, The College of Wooster, Wooster, OH, United States of America
| | - Andrew Hamel
- Biochemistry and Molecular Biology, The College of Wooster, Wooster, OH, United States of America
| | - Dávid Deritei
- Department of Physics, Pennsylvania State University, State College, PA, United States of America
- Department of Network and Data Science, Central European University, Budapest, Hungary
| | - Sarah Campbell
- Biochemistry and Molecular Biology, The College of Wooster, Wooster, OH, United States of America
| | - Erzsébet Ravasz Regan
- Biochemistry and Molecular Biology, The College of Wooster, Wooster, OH, United States of America
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Piao XY, Li W, Li Z, Zhang N, Fang H, Zahid D, Qu Q. Forced FoxO1:S 249V expression suppressed glioma cell proliferation through G2/M cell cycle arrests and increased apoptosis. Neurol Res 2018; 41:189-198. [PMID: 30453847 DOI: 10.1080/01616412.2018.1548724] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
OBJECTIVE Forkhead box O1 (FoxO1) plays a crucial role in the development of many tumors. Cyclin D kinase (CDK) 1 could influence the nuclear export and activity of FoxO1 through phosphorylation of serine (S)249. However, the effects of S249 phosphorylation in the development of glioma remain unclear. The aim of the present study is to assess the function of FoxO1:S249V mutant, which was converted S249 phosphorylation site into valine (V) residues in the glioma development. METHODS FoxO1-knockdown U251 glioma cells (U251-KD cells) were established by infection of retrovirus particles with FoxO1 siRNA and FoxO1 restored cells (FoxO1:S249V) were obtained by re-introduction of FoxO1:S249V cDNA. We detected mRNA expression by real-time PCR, and cell cycle arrest and apoptosis by flow cytometric assay, and cell proliferation by BrdU assay and CCK-8 assay. The protective effects of FoxO1:S249V were detected by the xenograft tumor formation assay. RESULTS The FoxO1 mRNA expression was significantly decreased in the glioma specimens (n = 24). The U251-KD cells showed downregulation of p27 and Bim, while the phosphorylation of CDK1 was upregulated. FoxO1:S249V cells inhibited the phosphorylation of S249, and induced G2/M cell cycle arrest, following reduced cell growth and increased apoptosis. Moreover, FoxO1:S249V expression effectively inhibits the glioma growth. CONCLUSION Our findings suggest that the forced FoxO1:S249V suppressed the cell growth through G2/M cell cycle arrests and increased apoptosis in glioma.
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Affiliation(s)
- Xiang-Yu Piao
- a Department of Neurology, Department of Neurology , the First Affiliated Hospital of Xi'an Jiaotong University , Xi'an , China
| | - Wenzhe Li
- b College of Basic Medical Sciences , Dalian Medical University , Dalian , China
| | - Zhi Li
- c Clinical Laboratory , Dalian Municipal Central Hospital , Dalian city , Liaoning China
| | - Nianzhu Zhang
- b College of Basic Medical Sciences , Dalian Medical University , Dalian , China
| | - Hui Fang
- b College of Basic Medical Sciences , Dalian Medical University , Dalian , China
| | - Danish Zahid
- b College of Basic Medical Sciences , Dalian Medical University , Dalian , China
| | - Qiumin Qu
- a Department of Neurology, Department of Neurology , the First Affiliated Hospital of Xi'an Jiaotong University , Xi'an , China
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RNA Sequencing for Gene Expression Profiles in a Rat Model of Middle Cerebral Artery Occlusion. BIOMED RESEARCH INTERNATIONAL 2018; 2018:2465481. [PMID: 30533429 PMCID: PMC6247679 DOI: 10.1155/2018/2465481] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 09/26/2018] [Accepted: 10/25/2018] [Indexed: 02/03/2023]
Abstract
Gene expression regulatory mechanisms in models of middle cerebral artery occlusion (MCAO) have been assessed in some studies, but questions remain. The discovery of differentially expressed genes (DEGs) between MCAO and control rats analyzed by next-generation RNA sequencing is of particular interest. These DEGs may help guide the clinical diagnosis of stroke and facilitate selection of the optimal treatment strategy. Twenty rats were equally divided into control and MCAO groups. Three rats from each group were randomly selected for RNA sequencing analysis. Sequence reads were obtained from an Illumina HiSeq2500 platform and mapped onto the rat reference genome RN6 using Hisat2. We identified 1,007 significantly DEGs with p<0.05, including 785 upregulated (fold change [FC]>2) and 222 downregulated (FC<0.5) DEGs, in brain tissue from MCAO rats compared with that from control rats, and numerous immune response genes were identified. Gene ontology (GO) analysis revealed that the majority of the most enriched and meaningful biological process terms were mainly involved in immune response, inflammatory response, cell activation, leukocyte migration, cell adhesion, response to external stimulus, cell migration, and response to wounding. Also enriched were immune-related pathways and neural-related pathways. Similar to GO molecular function terms, the enriched terms were mainly related to cytokine receptor activity. Six DEGs were verified by quantitative real-time polymerase chain reaction (qRT-PCR). Protein-protein interaction analysis of these hits revealed that MCAO affects complement and coagulation cascades and chemokine signaling pathway. Our study identified novel biomarkers that could help further elucidate MCAO mechanisms and processes.
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Caldez MJ, Van Hul N, Koh HWL, Teo XQ, Fan JJ, Tan PY, Dewhurst MR, Too PG, Talib SZA, Chiang BE, Stünkel W, Yu H, Lee P, Fuhrer T, Choi H, Björklund M, Kaldis P. Metabolic Remodeling during Liver Regeneration. Dev Cell 2018; 47:425-438.e5. [PMID: 30344111 DOI: 10.1016/j.devcel.2018.09.020] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 05/13/2018] [Accepted: 09/21/2018] [Indexed: 12/29/2022]
Abstract
Liver disease is linked to a decreased capacity of hepatocytes to divide. In addition, cellular metabolism is important for tissue homeostasis and regeneration. Since metabolic changes are a hallmark of liver disease, we investigated the connections between metabolism and cell division. We determined global metabolic changes at different stages of liver regeneration using a combination of integrated transcriptomic and metabolomic analyses with advanced functional redox in vivo imaging. Our data indicate that blocking hepatocyte division during regeneration leads to mitochondrial dysfunction and downregulation of oxidative pathways. This resulted in an increased redox ratio and hyperactivity of alanine transaminase allowing the production of alanine and α-ketoglutarate from pyruvate when mitochondrial functions are impaired. Our data suggests that during liver regeneration, cell division leads to hepatic metabolic remodeling. Moreover, we demonstrate that hepatocytes are equipped with a flexible metabolic machinery able to adapt dynamically to changes during tissue regeneration.
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Affiliation(s)
- Matias J Caldez
- Institute of Molecular and Cell Biology (IMCB), A(∗)STAR (Agency for Science, Technology and Research), 61 Biopolis Drive, Proteos #3-09, Singapore 138673, Republic of Singapore; National University of Singapore (NUS), Department of Biochemistry, Singapore 117597, Republic of Singapore
| | - Noémi Van Hul
- Institute of Molecular and Cell Biology (IMCB), A(∗)STAR (Agency for Science, Technology and Research), 61 Biopolis Drive, Proteos #3-09, Singapore 138673, Republic of Singapore
| | - Hiromi W L Koh
- Saw Swee Hock School of Public Health, National University of Singapore, 12 Science Drive 2, Singapore 117549, Republic of Singapore
| | - Xing Qi Teo
- Singapore Bio-Imaging Consortium, A(∗)STAR, Singapore, Republic of Singapore
| | - Jun Jun Fan
- Institute of Bioengineering and Nanotechnology, A(∗)STAR, The Nanos, #04-01, 31 Biopolis Way, Singapore 138669, Republic of Singapore; Singapore-MIT Alliance for Research and Technology, 1 CREATE Way, #10-01 CREATE Tower, Singapore 138602, Republic of Singapore; Department of Orthopaedic Surgery, Xi Jing Hospital, Fourth Military Medical University, #88 Jiefang Road, Xi'an 710032, China
| | - Peck Yean Tan
- Singapore Institute of Clinical Sciences, A(∗)STAR, Singapore, Republic of Singapore
| | - Matthew R Dewhurst
- Institute of Molecular and Cell Biology (IMCB), A(∗)STAR (Agency for Science, Technology and Research), 61 Biopolis Drive, Proteos #3-09, Singapore 138673, Republic of Singapore; Faculty of Biology, Medicine and Health, University of Manchester, AV Hill Building, Oxford Road, Manchester M13 9PT, UK
| | - Peh Gek Too
- Singapore Institute of Clinical Sciences, A(∗)STAR, Singapore, Republic of Singapore
| | - S Zakiah A Talib
- Institute of Molecular and Cell Biology (IMCB), A(∗)STAR (Agency for Science, Technology and Research), 61 Biopolis Drive, Proteos #3-09, Singapore 138673, Republic of Singapore
| | - Beatrice E Chiang
- Institute of Molecular and Cell Biology (IMCB), A(∗)STAR (Agency for Science, Technology and Research), 61 Biopolis Drive, Proteos #3-09, Singapore 138673, Republic of Singapore
| | - Walter Stünkel
- Singapore Institute of Clinical Sciences, A(∗)STAR, Singapore, Republic of Singapore
| | - Hanry Yu
- Institute of Bioengineering and Nanotechnology, A(∗)STAR, The Nanos, #04-01, 31 Biopolis Way, Singapore 138669, Republic of Singapore; Department of Physiology, Yong Loo Lin School of Medicine, MD9-04-11, 2 Medical Drive, Singapore 117597, Republic of Singapore; Mechanobiology Institute, National University of Singapore, 5A Engineering Drive 1, Singapore 117411, Republic of Singapore; Gastroenterology Department, Southern Medical University, Guangzhou 510515, China
| | - Philip Lee
- Singapore Bio-Imaging Consortium, A(∗)STAR, Singapore, Republic of Singapore
| | - Tobias Fuhrer
- Institute of Molecular Systems Biology, ETH Zürich, Zürich, Switzerland
| | - Hyungwon Choi
- Institute of Molecular and Cell Biology (IMCB), A(∗)STAR (Agency for Science, Technology and Research), 61 Biopolis Drive, Proteos #3-09, Singapore 138673, Republic of Singapore; Saw Swee Hock School of Public Health, National University of Singapore, 12 Science Drive 2, Singapore 117549, Republic of Singapore
| | - Mikael Björklund
- Zhejiang University-University of Edinburgh (ZJU-UoE) Institute, Zhejiang University School of Medicine, International Campus, Zhejiang University, 718 East Haizhou Rd, Haining, Zhejiang 314400, China
| | - Philipp Kaldis
- Institute of Molecular and Cell Biology (IMCB), A(∗)STAR (Agency for Science, Technology and Research), 61 Biopolis Drive, Proteos #3-09, Singapore 138673, Republic of Singapore; National University of Singapore (NUS), Department of Biochemistry, Singapore 117597, Republic of Singapore.
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Deshmukh RS, Sharma S, Das S. Cyclin F-Dependent Degradation of RBPJ Inhibits IDH1 R132H-Mediated Tumorigenesis. Cancer Res 2018; 78:6386-6398. [PMID: 30254149 DOI: 10.1158/0008-5472.can-18-1772] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 08/22/2018] [Accepted: 09/18/2018] [Indexed: 11/16/2022]
Abstract
Cyclin F is a substrate recognition subunit of Skp1-Cul1-F-box protein (SCF) E3 ubiquitin ligase complex. Although there have been reports describing the role of cyclin F in the genotoxic stress response, its function under conditions of altered metabolic homeostasis remain unexplored. Here we report that cyclin F is induced upon metabolic stress in a FOXO1-dependent manner. Under metabolic stress conditions, cyclin F mediated polyubiquitylation of RBPJ at Lys315, leading to its proteasomal degradation. RBPJ regulated the expression of IDH1, which is often mutated to an oncogenic form IDH1R132H in cancers. Thus, metabolic stress-induced cyclin F attenuated the oncogenic functions of IDH1R132H in an RBPJ-dependent manner. Studies in mouse tumor models indicated that abrogation of cyclin F expression facilitates IDH1R132H-mediated tumorigenesis and metastasis. In addition, increased IDH1R132H levels correlated with reduced cyclin F levels in increasing grades of glioma. These findings highlight a novel aspect of cyclin F functions in inhibiting tumorigenesis and provide mechanistic insights into regulation of IDH1R132H Significance: These findings reveal mechanistic insights into the key role of the cyclin F-RBPJ axis in response to metabolic stress in cancer cells. Cancer Res; 78(22); 6386-98. ©2018 AACR.
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Affiliation(s)
- Ruhi S Deshmukh
- Molecular Oncology Laboratory, National Institute of Immunology, New Delhi, India
| | - Shalakha Sharma
- Molecular Oncology Laboratory, National Institute of Immunology, New Delhi, India
| | - Sanjeev Das
- Molecular Oncology Laboratory, National Institute of Immunology, New Delhi, India.
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Mok MT, Zhou J, Tang W, Zeng X, Oliver AW, Ward SE, Cheng AS. CCRK is a novel signalling hub exploitable in cancer immunotherapy. Pharmacol Ther 2018; 186:138-151. [PMID: 29360538 DOI: 10.1016/j.pharmthera.2018.01.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Cyclin-dependent kinase 20 (CDK20), or more commonly referred to as cell cycle-related kinase (CCRK), is the latest member of CDK family with strong linkage to human cancers. Accumulating studies have reported the consistent overexpression of CCRK in cancers arising from brain, colon, liver, lung and ovary. Such aberrant up-regulation of CCRK is clinically significant as it correlates with tumor staging, shorter patient survival and poor prognosis. Intriguingly, the signalling molecules perturbed by CCRK are divergent and cancer-specific, including the cell cycle regulators CDK2, cyclin D1, cyclin E and RB in glioblastoma, ovarian carcinoma and colorectal cancer, and KEAP1-NRF2 cytoprotective pathway in lung cancer. In hepatocellular carcinoma (HCC), CCRK mediates virus-host interaction to promote hepatitis B virus-associated tumorigenesis. Further mechanistic analyses reveal that CCRK orchestrates a self-reinforcing circuitry comprising of AR, GSK3β, β-catenin, AKT, EZH2, and NF-κB signalling for transcriptional and epigenetic regulation of oncogenes and tumor suppressor genes. Notably, EZH2 and NF-κB in this circuit have been recently shown to induce IL-6 production to facilitate tumor immune evasion. Concordantly, in a hepatoma preclinical model, ablation of Ccrk disrupts the immunosuppressive tumor microenvironment and enhances the therapeutic efficacy of immune checkpoint blockade via potentiation of anti-tumor T cell responses. In this review, we summarized the multifaceted tumor-intrinsic and -extrinsic functions of CCRK, which represents a novel signalling hub exploitable in cancer immunotherapy.
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Affiliation(s)
- Myth T Mok
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Jingying Zhou
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Wenshu Tang
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Xuezhen Zeng
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Antony W Oliver
- Genome Damage and Stability Centre, School of Life Sciences, University of Sussex, Falmer, UK
| | - Simon E Ward
- Medicines Discovery Institute, Cardiff University, Main Building, Cardiff, Wales, CF10 3AT, UK
| | - Alfred S Cheng
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China; State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China.
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