1
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Smits DJ, Dekker J, Douben H, Schot R, Magee H, Bakhtiari S, Koehler K, Huebner A, Schuelke M, Darvish H, Vosoogh S, Tafakhori A, Jameie M, Taghiabadi E, Wilson Y, Shah M, van Slegtenhorst MA, Medici-van den Herik EG, van Ham TJ, Kruer MC, Mancini GMS. Biallelic NDC1 variants that interfere with ALADIN binding are associated with neuropathy and triple A-like syndrome. HGG ADVANCES 2024; 5:100327. [PMID: 39003500 PMCID: PMC11375137 DOI: 10.1016/j.xhgg.2024.100327] [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: 11/14/2023] [Revised: 07/11/2024] [Accepted: 07/11/2024] [Indexed: 07/15/2024] Open
Abstract
Nuclear pore complexes (NPCs) regulate nucleocytoplasmic transport and are anchored in the nuclear envelope by the transmembrane nucleoporin NDC1. NDC1 is essential for post-mitotic NPC assembly and the recruitment of ALADIN to the nuclear envelope. While no human disorder has been associated to one of the three transmembrane nucleoporins, biallelic variants in AAAS, encoding ALADIN, cause triple A syndrome (Allgrove syndrome). Triple A syndrome, characterized by alacrima, achalasia, and adrenal insufficiency, often includes progressive demyelinating polyneuropathy and other neurological complaints. In this report, diagnostic exome and/or RNA sequencing was performed in seven individuals from four unrelated consanguineous families with AAAS-negative triple A syndrome. Molecular and clinical studies followed to elucidate the pathogenic mechanism. The affected individuals presented with intellectual disability, motor impairment, severe demyelinating with secondary axonal polyneuropathy, alacrima, and achalasia. None of the affected individuals has adrenal insufficiency. All individuals presented with biallelic NDC1 in-frame deletions or missense variants that affect amino acids and protein domains required for ALADIN binding. No other significant variants associated with the phenotypic features were reported. Skin fibroblasts derived from affected individuals show decreased recruitment of ALADIN to the NE and decreased post-mitotic NPC insertion, confirming pathogenicity of the variants. Taken together, our results implicate biallelic NDC1 variants in the pathogenesis of polyneuropathy and a triple A-like disorder without adrenal insufficiency, by interfering with physiological NDC1 functions, including the recruitment of ALADIN to the NPC.
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Affiliation(s)
- Daphne J Smits
- Department of Clinical Genetics, Erasmus University Medical Center, Dr. Molewaterplein 40, 3015 GD Rotterdam, the Netherlands.
| | - Jordy Dekker
- Department of Clinical Genetics, Erasmus University Medical Center, Dr. Molewaterplein 40, 3015 GD Rotterdam, the Netherlands
| | - Hannie Douben
- Department of Clinical Genetics, Erasmus University Medical Center, Dr. Molewaterplein 40, 3015 GD Rotterdam, the Netherlands
| | - Rachel Schot
- Department of Clinical Genetics, Erasmus University Medical Center, Dr. Molewaterplein 40, 3015 GD Rotterdam, the Netherlands
| | - Helen Magee
- Division of Pediatric Neurology, Barrow Neurological Institute, Phoenix Children's Hospital, Phoenix, AZ 85016, USA; Departments of Child Health, Neurology, Cellular & Molecular Medicine and Program in Genetics, University of Arizona College of Medicine - Phoenix, Phoenix, AZ 85004, USA
| | - Somayeh Bakhtiari
- Division of Pediatric Neurology, Barrow Neurological Institute, Phoenix Children's Hospital, Phoenix, AZ 85016, USA; Departments of Child Health, Neurology, Cellular & Molecular Medicine and Program in Genetics, University of Arizona College of Medicine - Phoenix, Phoenix, AZ 85004, USA
| | - Katrin Koehler
- Department of Pediatrics, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Angela Huebner
- Department of Pediatrics, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Markus Schuelke
- Department of Neuropediatrics and NeuroCure Clinical Research Center, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Hossein Darvish
- Neuroscience Research Center, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Shohreh Vosoogh
- Clinical Research Development Unit (CRDU), Sayad Shirazi Hospital, Golestan University of Medical Sciences, Gorgan, Iran
| | - Abbas Tafakhori
- Iranian Center of Neurological Research, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Melika Jameie
- Iranian Center of Neurological Research, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Ehsan Taghiabadi
- Skin and Stem Cell Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Yana Wilson
- Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia; Cerebral Palsy Alliance Research Institute, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Margit Shah
- Department of Clinical Genetics, Children's Hospital at Westmead, Sydney Children's Hospitals Network, Westmead, NSW, Australia; Specialty of Genomic Medicine, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Marjon A van Slegtenhorst
- Department of Clinical Genetics, Erasmus University Medical Center, Dr. Molewaterplein 40, 3015 GD Rotterdam, the Netherlands
| | - Evita G Medici-van den Herik
- Department of Neurology, Section of Child Neurology, Erasmus University Medical Center Rotterdam, Dr. Molewaterplein 40, 3015 GD Rotterdam, the Netherlands
| | - Tjakko J van Ham
- Department of Clinical Genetics, Erasmus University Medical Center, Dr. Molewaterplein 40, 3015 GD Rotterdam, the Netherlands
| | - Michael C Kruer
- Division of Pediatric Neurology, Barrow Neurological Institute, Phoenix Children's Hospital, Phoenix, AZ 85016, USA; Departments of Child Health, Neurology, Cellular & Molecular Medicine and Program in Genetics, University of Arizona College of Medicine - Phoenix, Phoenix, AZ 85004, USA
| | - Grazia M S Mancini
- Department of Clinical Genetics, Erasmus University Medical Center, Dr. Molewaterplein 40, 3015 GD Rotterdam, the Netherlands
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Fricke LC, Lindsey ARI. Identification of Parthenogenesis-Inducing Effector Proteins in Wolbachia. Genome Biol Evol 2024; 16:evae036. [PMID: 38530785 PMCID: PMC11019157 DOI: 10.1093/gbe/evae036] [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: 12/13/2023] [Revised: 02/12/2024] [Accepted: 02/18/2024] [Indexed: 03/28/2024] Open
Abstract
Bacteria in the genus Wolbachia have evolved numerous strategies to manipulate arthropod sex, including the conversion of would-be male offspring to asexually reproducing females. This so-called "parthenogenesis induction" phenotype can be found in a number of Wolbachia strains that infect arthropods with haplodiploid sex determination systems, including parasitoid wasps. Despite the discovery of microbe-mediated parthenogenesis more than 30 yr ago, the underlying genetic mechanisms have remained elusive. We used a suite of genomic, computational, and molecular tools to identify and characterize two proteins that are uniquely found in parthenogenesis-inducing Wolbachia and have strong signatures of host-associated bacterial effector proteins. These putative parthenogenesis-inducing proteins have structural homology to eukaryotic protein domains including nucleoporins, the key insect sex determining factor Transformer, and a eukaryotic-like serine-threonine kinase with leucine-rich repeats. Furthermore, these proteins significantly impact eukaryotic cell biology in the model Saccharomyces cerevisiae. We suggest that these proteins are parthenogenesis-inducing factors and our results indicate that this would be made possible by a novel mechanism of bacterial-host interaction.
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Affiliation(s)
- Laura C Fricke
- Department of Entomology, University of Minnesota, St. Paul, MN 55108, USA
| | - Amelia R I Lindsey
- Department of Entomology, University of Minnesota, St. Paul, MN 55108, USA
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3
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Ge J, Yue Y, Nie HY, Liu KG, Li H, Lin HG, Zhang T, Yan HF, Sun HW, Yang JW, Zhou JL, Cui Y. Simulated microgravity altered the gene expression profiles and inhibited the proliferation of Kupffer cells in the early phase by downregulating LMO2 and EZH2. LIFE SCIENCES IN SPACE RESEARCH 2024; 40:21-34. [PMID: 38245345 DOI: 10.1016/j.lssr.2023.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 09/30/2023] [Accepted: 11/08/2023] [Indexed: 01/22/2024]
Abstract
Microgravity is a primary challenge that need to overcome, when human travel to space. Our study provided evidence that Kupffer cells (KCs) are sensitive to simulated microgravity (SMG), and no similar research report has been found in the literature. Using transcriptome sequencing technology, it was showed that 631 genes were upregulated and 801 genes were downregulated in KCs after treatment under SMG for 3 days. The GO analysis indicated that the proliferation of KCs was affected when exposed to SMG for 3 days. CCK-8 assay confirmed that the proliferation of KCs was inhibited in the third day under the environment of SMG. Furthermore, we identified 8 key genes that affect the proliferation of KCs and predicted 2 transcription factors (TFs) that regulate the 8 key genes. Significantly, we found that microgravity could affect the expression of LMO2 and EZH2 to reduce the transcription of Racgap1, Ccna2, Nek2, Aurka, Plk1, Haus4, Cdc20, Bub1b, which resulting in the reduction in KCs proliferation. These finding suggested that the inhibition of KCs proliferation under microgravity may influence the homeostasis of liver, and LMO2 and EZH2 can be the targets in management of KCs' disturbance in the future practice of space medicine.
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Affiliation(s)
- Jun Ge
- Department of General Surgery, The 306th Hospital of PLA-Peking University Teaching Hospital, Beijing, 100101, China
| | - Yuan Yue
- Department of General Surgery, The 306th Hospital of PLA-Peking University Teaching Hospital, Beijing, 100101, China
| | - Hong-Yun Nie
- Department of General Surgery, The 306th Hospital of PLA-Peking University Teaching Hospital, Beijing, 100101, China
| | - Kai-Ge Liu
- Department of General Surgery, Strategic Support Force Medical Center, Beijing, 100101, China
| | - Hao Li
- Department of General Surgery, Strategic Support Force Medical Center, Beijing, 100101, China.
| | - Hai-Guan Lin
- Department of General Surgery, Strategic Support Force Medical Center, Beijing, 100101, China
| | - Tao Zhang
- Department of General Surgery, Strategic Support Force Medical Center, Beijing, 100101, China
| | - Hong-Feng Yan
- Department of General Surgery, Strategic Support Force Medical Center, Beijing, 100101, China
| | - Hong-Wei Sun
- Department of General Surgery, Strategic Support Force Medical Center, Beijing, 100101, China
| | - Jian-Wu Yang
- Department of General Surgery, Strategic Support Force Medical Center, Beijing, 100101, China
| | - Jin-Lian Zhou
- Department of Pathology, Strategic Support Force Medical Center, Beijing, 100101, China
| | - Yan Cui
- Department of General Surgery, The 306th Hospital of PLA-Peking University Teaching Hospital, Beijing, 100101, China; Department of General Surgery, Strategic Support Force Medical Center, Beijing, 100101, China.
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4
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Fricke LC, Lindsey ARI. Identification of parthenogenesis-inducing effector proteins in Wolbachia. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.01.569668. [PMID: 38076953 PMCID: PMC10705499 DOI: 10.1101/2023.12.01.569668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
Bacteria in the genus Wolbachia have evolved numerous strategies to manipulate arthropod sex, including the conversion of would-be male offspring to asexually reproducing females. This so-called "parthenogenesis-induction" phenotype can be found in a number of Wolbachia strains that infect arthropods with haplodiploid sex determination systems, including parasitoid wasps. Despite the discovery of microbe-mediated parthenogenesis more than 30 years ago, the underlying genetic mechanisms have remained elusive. We used a suite of genomic, computational, and molecular tools to identify and characterize two proteins that are uniquely found in parthenogenesis-inducing Wolbachia and have strong signatures of host-associated bacterial effector proteins. These putative parthenogenesis-inducing proteins have structural homology to eukaryotic protein domains including nucleoporins, the key insect sex-determining factor Transformer, and a eukaryotic-like serine-threonine kinase with leucine rich repeats. Furthermore, these proteins significantly impact eukaryotic cell biology in the model, Saccharomyces cerevisiae. We suggest these proteins are parthenogenesis-inducing factors and our results indicate this would be made possible by a novel mechanism of bacterial-host interaction.
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Affiliation(s)
- Laura C Fricke
- Department of Entomology, University of Minnesota, St. Paul, Minnesota, 55108
| | - Amelia RI Lindsey
- Department of Entomology, University of Minnesota, St. Paul, Minnesota, 55108
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5
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Pan S, Secrier M. HistoMIL: A Python package for training multiple instance learning models on histopathology slides. iScience 2023; 26:108073. [PMID: 37860768 PMCID: PMC10583115 DOI: 10.1016/j.isci.2023.108073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 08/21/2023] [Accepted: 09/25/2023] [Indexed: 10/21/2023] Open
Abstract
Hematoxylin and eosin (H&E) stained slides are widely used in disease diagnosis. Remarkable advances in deep learning have made it possible to detect complex molecular patterns in these histopathology slides, suggesting automated approaches could help inform pathologists' decisions. Multiple instance learning (MIL) algorithms have shown promise in this context, outperforming transfer learning (TL) methods for various tasks, but their implementation and usage remains complex. We introduce HistoMIL, a Python package designed to streamline the implementation, training and inference process of MIL-based algorithms for computational pathologists and biomedical researchers. It integrates a self-supervised learning module for feature encoding, and a full pipeline encompassing TL and three MIL algorithms: ABMIL, DSMIL, and TransMIL. The PyTorch Lightning framework enables effortless customization and algorithm implementation. We illustrate HistoMIL's capabilities by building predictive models for 2,487 cancer hallmark genes on breast cancer histology slides, achieving AUROC performances of up to 85%.
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Affiliation(s)
- Shi Pan
- Department of Genetics, Evolution and Environment, UCL Genetics Institute, University College London, London WC1E 6BT, UK
| | - Maria Secrier
- Department of Genetics, Evolution and Environment, UCL Genetics Institute, University College London, London WC1E 6BT, UK
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Singh IA, Lokhande KB, Swamy KV. Identification and Screening of Novel Anti-Cancer Compounds for Aurora Kinase-A from Chemical Database. Drug Res (Stuttg) 2023; 73:30-39. [PMID: 36138546 DOI: 10.1055/a-1877-4693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Aurora kinase is a group of enzymes that belongs to a serine-threonine family and plays a critical role in cellular division. Aurora Kinase A is overexpressed and distributed beyond the nucleus and is involved in tumorigenesis. Flavones are a class of flavonoids that are present in plants that show anticancer activity. Similar compounds of 2'Fluoroflavones are retrieved from the PubChem database. Then drug-like filters viz. REOS and PAINS were applied to remove toxic compounds using Canvas software, resulting in 3882 compounds being subjected to Glide docking with Aurora kinase A. The lead compounds were selected on the merit of hydrogen bonding, salt bridge, as well as pi-pi interactions, 4-(6-Fluoro-4-oxychromen-2yl) benzoic acid, has been found one of the best molecules from docking studies. The binding mode of the lead compound with AURKA reveals that the amino acid residues viz, Lys162, Ala213, and His280 are more important for binding with the binding affinity of -11.760 kcal/mol. The molecular dynamics simulations of 100 ns were done, which shows the mean RMSD value of 1.77 Å for all 3 complexes of the protein and Fluoroflavone and its analogs. This shows that Fluoroflavone and its 2 best analogs are tightly attached to the active sites and thus have conformational stability. Our finding suggests that 4-(6-fluoro-4-oxochromen-2-yl)benzoic acid and 4-(4-Oxochromen-2-yl)benzoate can be further used in vitro and in vivo experiments and can probably serve as a novel drug for cancer treatment.
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Affiliation(s)
- Ipsa A Singh
- Bioinformatics Research Laboratory, Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Pune, India
| | - Kiran Bharat Lokhande
- Bioinformatics Research Laboratory, Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Pune, India
| | - K Venkateswara Swamy
- Drug Discovery Group, MIT School of Bioengineering Sciences & Research, MIT Art, Design and Technology University, Pune, India
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7
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Tu J, Yu S, Li J, Ren M, Zhang Y, Luo J, Sun K, Lv Y, Han Y, Huang Y, Ren X, Jiang T, Tang Z, Williams MTS, Lu Q, Liu M. Dhx38 is required for the maintenance and differentiation of erythro-myeloid progenitors and hematopoietic stem cells by alternative splicing. Development 2022; 149:276218. [DOI: 10.1242/dev.200450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 07/21/2022] [Indexed: 11/20/2022]
Abstract
ABSTRACT
Mutations that occur in RNA-splicing machinery may contribute to hematopoiesis-related diseases. How splicing factor mutations perturb hematopoiesis, especially in the differentiation of erythro-myeloid progenitors (EMPs), remains elusive. Dhx38 is a pre-mRNA splicing-related DEAH box RNA helicase, for which the physiological functions and splicing mechanisms during hematopoiesis currently remain unclear. Here, we report that Dhx38 exerts a broad effect on definitive EMPs as well as the differentiation and maintenance of hematopoietic stem and progenitor cells (HSPCs). In dhx38 knockout zebrafish, EMPs and HSPCs were found to be arrested in mitotic prometaphase, accompanied by a ‘grape’ karyotype, owing to the defects in chromosome alignment. Abnormal alternatively spliced genes related to chromosome segregation, the microtubule cytoskeleton, cell cycle kinases and DNA damage were present in the dhx38 mutants. Subsequently, EMPs and HSPCs in dhx38 mutants underwent P53-dependent apoptosis. This study provides novel insights into alternative splicing regulated by Dhx38, a process that plays a crucial role in the proliferation and differentiation of fetal EMPs and HSPCs.
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Affiliation(s)
- Jiayi Tu
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology 1 , Wuhan 430074 , P.R. China
| | - Shanshan Yu
- Institute of Visual Neuroscience and Stem Cell Engineering, College of Life Sciences and Health, Wuhan University of Science and Technology 2 , Wuhan, Hubei 430065 , P.R. China
| | - Jingzhen Li
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology 1 , Wuhan 430074 , P.R. China
| | - Mengmeng Ren
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology 1 , Wuhan 430074 , P.R. China
| | - Yangjun Zhang
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology 3 , Wuhan 430030 , P.R. China
| | - Jiong Luo
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology 1 , Wuhan 430074 , P.R. China
| | - Kui Sun
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology 1 , Wuhan 430074 , P.R. China
| | - Yuexia Lv
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology 1 , Wuhan 430074 , P.R. China
| | - Yunqiao Han
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology 1 , Wuhan 430074 , P.R. China
| | - Yuwen Huang
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology 1 , Wuhan 430074 , P.R. China
| | - Xiang Ren
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology 1 , Wuhan 430074 , P.R. China
| | - Tao Jiang
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology 1 , Wuhan 430074 , P.R. China
| | - Zhaohui Tang
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology 1 , Wuhan 430074 , P.R. China
| | - Mark Thomas Shaw Williams
- Charles Oakley Laboratories 4 , Department of Biological and Biomedical Sciences , , Glasgow G4 0BA , UK
- Glasgow Caledonian University 4 , Department of Biological and Biomedical Sciences , , Glasgow G4 0BA , UK
| | - Qunwei Lu
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology 1 , Wuhan 430074 , P.R. China
| | - Mugen Liu
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology 1 , Wuhan 430074 , P.R. China
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Yun D, Wang X, Wang W, Ren X, Li J, Wang X, Liang J, Liu J, Fan J, Ren X, Zhang H, Shang G, Sun J, Chen L, Li T, Zhang C, Yu S, Yang X. A Novel Prognostic Signature Based on Glioma Essential Ferroptosis-Related Genes Predicts Clinical Outcomes and Indicates Treatment in Glioma. Front Oncol 2022; 12:897702. [PMID: 35756689 PMCID: PMC9232254 DOI: 10.3389/fonc.2022.897702] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 05/05/2022] [Indexed: 12/11/2022] Open
Abstract
Background Ferroptosis is a form of programmed cell death (PCD) that has been implicated in cancer progression, although the specific mechanism is not known. Here, we used the latest DepMap release CRISPR data to identify the essential ferroptosis-related genes (FRGs) in glioma and their role in patient outcomes. Methods RNA-seq and clinical information on glioma cases were obtained from the Chinese Glioma Genome Atlas (CGGA) and The Cancer Genome Atlas (TCGA). FRGs were obtained from the FerrDb database. CRISPR-screened essential genes (CSEGs) in glioma cell lines were downloaded from the DepMap portal. A series of bioinformatic and machine learning approaches were combined to establish FRG signatures to predict overall survival (OS) in glioma patients. In addition, pathways analysis was used to identify the functional roles of FRGs. Somatic mutation, immune cell infiltration, and immune checkpoint gene expression were analyzed within the risk subgroups. Finally, compounds for reversing high-risk gene signatures were predicted using the GDSC and L1000 datasets. Results Seven FRGs (ISCU, NFS1, MTOR, EIF2S1, HSPA5, AURKA, RPL8) were included in the model and the model was found to have good prognostic value (p < 0.001) in both training and validation groups. The risk score was found to be an independent prognostic factor and the model had good efficacy. Subgroup analysis using clinical parameters demonstrated the general applicability of the model. The nomogram indicated that the model could effectively predict 12-, 36-, and 60-months OS and progression-free interval (PFI). The results showed the presence of more aggressive phenotypes (lower numbers of IDH mutations, higher numbers of EGFR and PTEN mutations, greater infiltration of immune suppressive cells, and higher expression of immune checkpoint inhibitors) in the high-risk group. The signaling pathways enriched closely related to the cell cycle and DNA damage repair. Drug predictions showed that patients with higher risk scores may benefit from treatment with RTK pathway inhibitors, including compounds that inhibit RTKs directly or indirectly by targeting downstream PI3K or MAPK pathways. Conclusion In summary, the proposed cancer essential FRG signature predicts survival and treatment response in glioma.
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Affiliation(s)
- Debo Yun
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Laboratory of Neuro-oncology, Tianjin Neurological Institute, Tianjin, China.,Department of Neurosurgery, Nanchong Central Hospital, Nanchong, China
| | - Xuya Wang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Laboratory of Neuro-oncology, Tianjin Neurological Institute, Tianjin, China
| | - Wenbo Wang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Laboratory of Neuro-oncology, Tianjin Neurological Institute, Tianjin, China
| | - Xiao Ren
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Laboratory of Neuro-oncology, Tianjin Neurological Institute, Tianjin, China
| | - Jiabo Li
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Laboratory of Neuro-oncology, Tianjin Neurological Institute, Tianjin, China
| | - Xisen Wang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Laboratory of Neuro-oncology, Tianjin Neurological Institute, Tianjin, China
| | - Jianshen Liang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Laboratory of Neuro-oncology, Tianjin Neurological Institute, Tianjin, China
| | - Jie Liu
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Laboratory of Neuro-oncology, Tianjin Neurological Institute, Tianjin, China
| | - Jikang Fan
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Laboratory of Neuro-oncology, Tianjin Neurological Institute, Tianjin, China
| | - Xiude Ren
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Laboratory of Neuro-oncology, Tianjin Neurological Institute, Tianjin, China
| | - Hao Zhang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Laboratory of Neuro-oncology, Tianjin Neurological Institute, Tianjin, China
| | - Guanjie Shang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Laboratory of Neuro-oncology, Tianjin Neurological Institute, Tianjin, China
| | - Jingzhang Sun
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Laboratory of Neuro-oncology, Tianjin Neurological Institute, Tianjin, China
| | - Lei Chen
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Laboratory of Neuro-oncology, Tianjin Neurological Institute, Tianjin, China
| | - Tao Li
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Laboratory of Neuro-oncology, Tianjin Neurological Institute, Tianjin, China
| | - Chen Zhang
- Laboratory of Neuro-oncology, Tianjin Neurological Institute, Tianjin, China
| | - Shengping Yu
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Laboratory of Neuro-oncology, Tianjin Neurological Institute, Tianjin, China
| | - Xuejun Yang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Laboratory of Neuro-oncology, Tianjin Neurological Institute, Tianjin, China.,Department of Neurosurgery, Beijing Tsinghua Changgung Hospital, Beijing, China
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9
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Morozova TV, Shankar V, MacPherson RA, Mackay TFC, Anholt RRH. Modulation of the Drosophila transcriptome by developmental exposure to alcohol. BMC Genomics 2022; 23:347. [PMID: 35524193 PMCID: PMC9074282 DOI: 10.1186/s12864-022-08559-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 04/18/2022] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Prenatal exposure to ethanol can cause fetal alcohol spectrum disorder (FASD), a prevalent, preventable pediatric disorder. Identifying genetic risk alleles for FASD is challenging since time, dose, and frequency of exposure are often unknown, and manifestations of FASD are diverse and evident long after exposure. Drosophila melanogaster is an excellent model to study the genetic basis of the effects of developmental alcohol exposure since many individuals of the same genotype can be reared under controlled environmental conditions. RESULTS We used 96 sequenced, wild-derived inbred lines from the Drosophila melanogaster Genetic Reference Panel (DGRP) to profile genome-wide transcript abundances in young adult flies that developed on ethanol-supplemented medium or standard culture medium. We found substantial genetic variation in gene expression in response to ethanol with extensive sexual dimorphism. We constructed sex-specific genetic networks associated with alcohol-dependent modulation of gene expression that include protein-coding genes, Novel Transcribed Regions (NTRs, postulated to encode long non-coding RNAs) and female-specific coordinated regulation of snoRNAs that regulate pseudouridylation of ribosomal RNA. We reared DGRP lines which showed extreme upregulation or downregulation of snoRNA expression during developmental alcohol exposure on standard or ethanol supplemented medium and demonstrated that developmental exposure to ethanol has genotype-specific effects on adult locomotor activity and sleep. CONCLUSIONS There is significant and sex-specific natural genetic variation in the transcriptional response to developmental exposure to ethanol in Drosophila that comprises networks of genes affecting nervous system development and ethanol metabolism as well as networks of regulatory non-coding RNAs.
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Affiliation(s)
- Tatiana V Morozova
- Bioskryb Genomics, 2810 Meridian Parkway, Suite 110, Durham, NC, 27713, USA
| | - Vijay Shankar
- Center for Human Genetics and Department of Genetics and Biochemistry, Clemson University, 114 Gregor Mendel Circle, Greenwood, SC, 29646, USA
| | - Rebecca A MacPherson
- Center for Human Genetics and Department of Genetics and Biochemistry, Clemson University, 114 Gregor Mendel Circle, Greenwood, SC, 29646, USA
| | - Trudy F C Mackay
- Center for Human Genetics and Department of Genetics and Biochemistry, Clemson University, 114 Gregor Mendel Circle, Greenwood, SC, 29646, USA.
| | - Robert R H Anholt
- Center for Human Genetics and Department of Genetics and Biochemistry, Clemson University, 114 Gregor Mendel Circle, Greenwood, SC, 29646, USA.
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10
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Cai MD, Xu ZQ, Liu YH, Liu JQ, Zhao SY, Wang XJ, Li YH, Yu XL, Li XX. LncRNA-mediated effects of vitrification temperatures and cryoprotectant concentrations on bovine oocyte development following vitrification at the GV stage. Theriogenology 2022; 186:135-145. [DOI: 10.1016/j.theriogenology.2022.03.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 03/21/2022] [Accepted: 03/28/2022] [Indexed: 11/05/2022]
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11
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Ferragut Cardoso AP, Banerjee M, Nail AN, Lykoudi A, States JC. miRNA dysregulation is an emerging modulator of genomic instability. Semin Cancer Biol 2021; 76:120-131. [PMID: 33979676 PMCID: PMC8576067 DOI: 10.1016/j.semcancer.2021.05.004] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/30/2021] [Accepted: 05/03/2021] [Indexed: 12/12/2022]
Abstract
Genomic instability consists of a range of genetic alterations within the genome that contributes to tumor heterogeneity and drug resistance. It is a well-established characteristic of most cancer cells. Genome instability induction results from defects in DNA damage surveillance mechanisms, mitotic checkpoints and DNA repair machinery. Accumulation of genetic alterations ultimately sets cells towards malignant transformation. Recent studies suggest that miRNAs are key players in mediating genome instability. miRNAs are a class of small RNAs expressed in most somatic tissues and are part of the epigenome. Importantly, in many cancers, miRNA expression is dysregulated. Consequently, this review examines the role of miRNA dysregulation as a causal step for induction of genome instability and subsequent carcinogenesis. We focus specifically on mechanistic studies assessing miRNA(s) and specific subtypes of genome instability or known modes of genome instability. In addition, we provide insight on the existing knowledge gaps within the field and possible ways to address them.
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Affiliation(s)
- Ana P Ferragut Cardoso
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY, 40202, USA
| | - Mayukh Banerjee
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY, 40202, USA
| | - Alexandra N Nail
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY, 40202, USA
| | - Angeliki Lykoudi
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY, 40202, USA
| | - J Christopher States
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY, 40202, USA.
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12
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Medina-Laver Y, Rodríguez-Varela C, Salsano S, Labarta E, Domínguez F. What Do We Know about Classical and Non-Classical Progesterone Receptors in the Human Female Reproductive Tract? A Review. Int J Mol Sci 2021; 22:11278. [PMID: 34681937 PMCID: PMC8538361 DOI: 10.3390/ijms222011278] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/14/2021] [Accepted: 10/15/2021] [Indexed: 01/22/2023] Open
Abstract
The progesterone hormone regulates the human menstrual cycle, pregnancy, and parturition by its action via the different progesterone receptors and signaling pathways in the female reproductive tract. Progesterone actions can be exerted through classical and non-classical receptors, or even a combination of both. The former are nuclear receptors whose activation leads to transcriptional activity regulation and thus in turn leads to slower but long-lasting responses. The latter are composed of progesterone receptors membrane components (PGRMC) and membrane progestin receptors (mPRs). These receptors rapidly activate the appropriate intracellular signal transduction pathways, and they can subsequently initiate specific cell responses or even modulate genomic cell responses. This review covers our current knowledge on the mechanisms of action and the relevance of classical and non-classical progesterone receptors in female reproductive tissues ranging from the ovary and uterus to the cervix, and it exposes their crucial role in female infertility.
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Affiliation(s)
- Yassmin Medina-Laver
- IVI Foundation—IIS La Fe, 46026 Valencia, Spain; (Y.M.-L.); (C.R.-V.); (S.S.); (E.L.)
| | | | - Stefania Salsano
- IVI Foundation—IIS La Fe, 46026 Valencia, Spain; (Y.M.-L.); (C.R.-V.); (S.S.); (E.L.)
| | - Elena Labarta
- IVI Foundation—IIS La Fe, 46026 Valencia, Spain; (Y.M.-L.); (C.R.-V.); (S.S.); (E.L.)
- IVI RMA Valencia, 46015 Valencia, Spain
| | - Francisco Domínguez
- IVI Foundation—IIS La Fe, 46026 Valencia, Spain; (Y.M.-L.); (C.R.-V.); (S.S.); (E.L.)
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13
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Chen G, Yu M, Cao J, Zhao H, Dai Y, Cong Y, Qiao G. Identification of candidate biomarkers correlated with poor prognosis of breast cancer based on bioinformatics analysis. Bioengineered 2021; 12:5149-5161. [PMID: 34384030 PMCID: PMC8806858 DOI: 10.1080/21655979.2021.1960775] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Breast cancer (BC) is a malignancy with high incidence among women in the world. This study aims to screen key genes and potential prognostic biomarkers for BC using bioinformatics analysis. Total 58 normal tissues and 203 cancer tissues were collected from three Gene Expression Omnibus (GEO) gene expression profiles, and then the differential expressed genes (DEGs) were identified. Subsequently, the Gene Ontology (GO) function and Kyoto Encyclopedia of Genes and Genome (KEGG) pathway were analyzed to investigate the biological function of DEGs. Additionally, hub genes were screened by constructing a protein–protein interaction (PPI) network. Then, we explored the prognostic value and molecular mechanism of these hub genes using Kaplan–Meier (KM) curve and Gene Set Enrichment Analysis (GSEA). As a result, 42 up-regulated and 82 down-regulated DEGs were screened out from GEO datasets. The DEGs were mainly related to cell cycles and cell proliferation by GO and KEGG pathway analysis. Furthermore, 12 hub genes (FN1, AURKA, CCNB1, BUB1B, PRC1, TPX2, NUSAP1, TOP2A, KIF20A, KIF2C, RRM2, ASPM) with a high degree were identified initially, among which, 11 hub genes were significantly correlated with the prognosis of BC patients based on the Kaplan–Meier-plotter. GSEA reviewed that these hub genes correlated with KEGG_CELL_CYCLE and HALLMARK_P53_PATHWAY. In conclusion, this study identified 11 key genes as BC potential prognosis biomarkers on the basis of integrated bioinformatics analysis. This finding will improve our knowledge of the BC progress and mechanisms.
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Affiliation(s)
- Gang Chen
- Department of Breast Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, P.R. China
| | - Mingwei Yu
- Department of Orthopedics, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, P.R. China
| | - Jianqiao Cao
- Department of Breast Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, P.R. China
| | - Huishan Zhao
- Reproductive Medicine Centre, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, P.R. China
| | - Yuanping Dai
- Department of Medical Genetics, Liuzhou Maternal and Child Health Hospital, Guangxi, P.R. China
| | - Yizi Cong
- Department of Breast Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, P.R. China
| | - Guangdong Qiao
- Department of Breast Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, P.R. China
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Wang J, Hu T, Wang Q, Chen R, Xie Y, Chang H, Cheng J. Repression of the AURKA-CXCL5 axis induces autophagic cell death and promotes radiosensitivity in non-small-cell lung cancer. Cancer Lett 2021; 509:89-104. [PMID: 33848520 DOI: 10.1016/j.canlet.2021.03.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 03/23/2021] [Accepted: 03/25/2021] [Indexed: 12/25/2022]
Abstract
Aurora kinase A (AURKA) regulates apoptosis and autophagy in various diseases and has shown promising clinical effects. Nevertheless, the complex regulatory mechanism of AURKA and autophagy in non-small-cell lung cancer (NSCLC) radiosensitivity remains to be elucidated. Here, we showed that AURKA was upregulated in NSCLC cell lines and tissues and that AURKA overexpression was significantly related to a poor prognosis, tumor stage and lymph node metastasis in NSCLC. Interestingly, AURKA expression was significantly increased after 8Gy radiotherapy. Silencing of AURKA enhanced radiosensitivity and impaired migration and invasion in vivo and in vitro. Mechanistically, we determined that CXCL5, a member of the chemokine family, was a key downstream effector of AURKA, and the phenotype induced by AURKA silencing was partly due to CXCL5 inhibition. We further demonstrated that the AURKA-CXCL5 axis played an essential role in NSCLC autophagy and that the activation of cytotoxic autophagy attenuated the malignant biological behavior of NSCLC cells mediated by AURKA-CXCL5. In general, we revealed the role of the AURKA-CXCL5 axis and autophagy in regulating the sensitivity of NSCLC cells to radiotherapy, which may provide potential therapeutic targets and new strategies for combatting NSCLC resistance to radiotherapy.
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Affiliation(s)
- Jue Wang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Ting Hu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Qiong Wang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Renwang Chen
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yuxiu Xie
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Haiyan Chang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jing Cheng
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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Grill M, Lazzeri I, Kirsch A, Steurer N, Grossmann T, Karbiener M, Heitzer E, Gugatschka M. Vocal Fold Fibroblasts in Reinke's Edema Show Alterations Involved in Extracellular Matrix Production, Cytokine Response and Cell Cycle Control. Biomedicines 2021; 9:biomedicines9070735. [PMID: 34206882 PMCID: PMC8301432 DOI: 10.3390/biomedicines9070735] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 12/20/2022] Open
Abstract
The voice disorder Reinke’s edema (RE) is a smoking- and voice-abuse associated benign lesion of the vocal folds, defined by an edema of the Reinke’s space, accompanied by pathological microvasculature changes and immune cell infiltration. Vocal fold fibroblasts (VFF) are the main cell type of the lamina propria and play a key role in the disease progression. Current therapy is restricted to symptomatic treatment. Hence, there is an urgent need for a better understanding of the molecular causes of the disease. In the present study, we investigated differential expression profiles of RE and control VFF by means of RNA sequencing. In addition, fast gene set enrichment analysis (FGSEA) was performed in order to obtain involved biological processes, mRNA and protein levels of targets of interest were further evaluated. We identified 74 differentially regulated genes in total, 19 of which were upregulated and 55 downregulated. Differential expression analysis and FGSEA revealed upregulated genes and pathways involved in extracellular matrix (ECM) remodeling, inflammation and fibrosis. Downregulated genes and pathways were involved in ECM degradation, cell cycle control and proliferation. The current study addressed for the first time a direct comparison of VFF from RE to control and evaluated immediate functional consequences.
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Affiliation(s)
- Magdalena Grill
- Division of Phoniatrics, Department of Otorhinolaryngology, Medical University of Graz, 8036 Graz, Austria; (M.G.); (N.S.); (T.G.); (M.K.); (M.G.)
| | - Isaac Lazzeri
- Institute of Human Genetics, Diagnostic & Research Center for Molecular BioMedicine, Medical University of Graz, 8010 Graz, Austria; (I.L.); (E.H.)
| | - Andrijana Kirsch
- Division of Phoniatrics, Department of Otorhinolaryngology, Medical University of Graz, 8036 Graz, Austria; (M.G.); (N.S.); (T.G.); (M.K.); (M.G.)
- Correspondence:
| | - Nina Steurer
- Division of Phoniatrics, Department of Otorhinolaryngology, Medical University of Graz, 8036 Graz, Austria; (M.G.); (N.S.); (T.G.); (M.K.); (M.G.)
| | - Tanja Grossmann
- Division of Phoniatrics, Department of Otorhinolaryngology, Medical University of Graz, 8036 Graz, Austria; (M.G.); (N.S.); (T.G.); (M.K.); (M.G.)
| | - Michael Karbiener
- Division of Phoniatrics, Department of Otorhinolaryngology, Medical University of Graz, 8036 Graz, Austria; (M.G.); (N.S.); (T.G.); (M.K.); (M.G.)
- Global Pathogen Safety, Baxter AG, (part of Takeda), 1220 Vienna, Austria
| | - Ellen Heitzer
- Institute of Human Genetics, Diagnostic & Research Center for Molecular BioMedicine, Medical University of Graz, 8010 Graz, Austria; (I.L.); (E.H.)
| | - Markus Gugatschka
- Division of Phoniatrics, Department of Otorhinolaryngology, Medical University of Graz, 8036 Graz, Austria; (M.G.); (N.S.); (T.G.); (M.K.); (M.G.)
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Basnet U, Patil AR, Kulkarni A, Roy S. Role of Stress-Survival Pathways and Transcriptomic Alterations in Progression of Colorectal Cancer: A Health Disparities Perspective. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:5525. [PMID: 34063993 PMCID: PMC8196775 DOI: 10.3390/ijerph18115525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/07/2021] [Accepted: 05/19/2021] [Indexed: 12/09/2022]
Abstract
Every year, more than a million individuals are diagnosed with colorectal cancer (CRC) across the world. Certain lifestyle and genetic factors are known to drive the high incidence and mortality rates in some groups of individuals. The presence of enormous amounts of reactive oxygen species is implicated for the on-set and carcinogenesis, and oxidant scavengers are thought to be important in CRC therapy. In this review, we focus on the ethnicity-based CRC disparities in the U.S., the negative effects of oxidative stress and apoptosis, and gene regulation in CRC carcinogenesis. We also highlight the use of antioxidants for CRC treatment, along with screening for certain regulatory genetic elements and oxidative stress indicators as potential biomarkers to determine the CRC risk and progression.
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Affiliation(s)
- Urbashi Basnet
- Department of Biological Sciences, University of Texas at El Paso, El Paso, TX 79968, USA; (U.B.); (A.K.)
| | - Abhijeet R. Patil
- Computational Science Program, University of Texas at El Paso, El Paso, TX 79968, USA;
| | - Aditi Kulkarni
- Department of Biological Sciences, University of Texas at El Paso, El Paso, TX 79968, USA; (U.B.); (A.K.)
| | - Sourav Roy
- Department of Biological Sciences, University of Texas at El Paso, El Paso, TX 79968, USA; (U.B.); (A.K.)
- The Border Biomedical Research Center, University of Texas at El Paso, El Paso, TX 79968, USA
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Kirienko M, Sollini M, Corbetta M, Voulaz E, Gozzi N, Interlenghi M, Gallivanone F, Castiglioni I, Asselta R, Duga S, Soldà G, Chiti A. Radiomics and gene expression profile to characterise the disease and predict outcome in patients with lung cancer. Eur J Nucl Med Mol Imaging 2021; 48:3643-3655. [PMID: 33959797 PMCID: PMC8440255 DOI: 10.1007/s00259-021-05371-7] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 04/14/2021] [Indexed: 02/06/2023]
Abstract
Objective The objectives of our study were to assess the association of radiomic and genomic data with histology and patient outcome in non-small cell lung cancer (NSCLC). Methods In this retrospective single-centre observational study, we selected 151 surgically treated patients with adenocarcinoma or squamous cell carcinoma who performed baseline [18F] FDG PET/CT. A subgroup of patients with cancer tissue samples at the Institutional Biobank (n = 74/151) was included in the genomic analysis. Features were extracted from both PET and CT images using an in-house tool. The genomic analysis included detection of genetic variants, fusion transcripts, and gene expression. Generalised linear model (GLM) and machine learning (ML) algorithms were used to predict histology and tumour recurrence. Results Standardised uptake value (SUV) and kurtosis (among the PET and CT radiomic features, respectively), and the expression of TP63, EPHA10, FBN2, and IL1RAP were associated with the histotype. No correlation was found between radiomic features/genomic data and relapse using GLM. The ML approach identified several radiomic/genomic rules to predict the histotype successfully. The ML approach showed a modest ability of PET radiomic features to predict relapse, while it identified a robust gene expression signature able to predict patient relapse correctly. The best-performing ML radiogenomic rule predicting the outcome resulted in an area under the curve (AUC) of 0.87. Conclusions Radiogenomic data may provide clinically relevant information in NSCLC patients regarding the histotype, aggressiveness, and progression. Gene expression analysis showed potential new biomarkers and targets valuable for patient management and treatment. The application of ML allows to increase the efficacy of radiogenomic analysis and provides novel insights into cancer biology. Supplementary Information The online version contains supplementary material available at 10.1007/s00259-021-05371-7.
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Affiliation(s)
- Margarita Kirienko
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20090, Pieve Emanuele, Milan, Italy
- Fondazione IRCCS Istituto Nazionale Tumori, Via G. Venezian 1, 20133, Milan, Italy
| | - Martina Sollini
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20090, Pieve Emanuele, Milan, Italy.
- IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano, Milan, Italy.
| | - Marinella Corbetta
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20090, Pieve Emanuele, Milan, Italy
| | - Emanuele Voulaz
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20090, Pieve Emanuele, Milan, Italy
- IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano, Milan, Italy
| | - Noemi Gozzi
- IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano, Milan, Italy
| | - Matteo Interlenghi
- Institute of Molecular Bioimaging and Physiology, National Research Council (IBFM-CNR), Milan, Italy
- DeepTrace Technologies s.r.l., Via Conservatorio 17, 20122, Milan, Italy
| | - Francesca Gallivanone
- Institute of Molecular Bioimaging and Physiology, National Research Council (IBFM-CNR), Milan, Italy
| | - Isabella Castiglioni
- Institute of Molecular Bioimaging and Physiology, National Research Council (IBFM-CNR), Milan, Italy
- Department of Physics "G. Occhialini", University of Milan-Bicocca, Piazza della Scienza 3, 20126, Milan, Italy
| | - Rosanna Asselta
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20090, Pieve Emanuele, Milan, Italy
- IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano, Milan, Italy
| | - Stefano Duga
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20090, Pieve Emanuele, Milan, Italy
- Institute of Molecular Bioimaging and Physiology, National Research Council (IBFM-CNR), Milan, Italy
| | - Giulia Soldà
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20090, Pieve Emanuele, Milan, Italy.
- IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano, Milan, Italy.
| | - Arturo Chiti
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20090, Pieve Emanuele, Milan, Italy
- IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano, Milan, Italy
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Jayant SS, Gupta R, Agrawal K, Das L, Dutta P, Bhansali A. Triple A (Allgrove) syndrome due to AAAS gene mutation with a rare association of amyotrophy. Hormones (Athens) 2021; 20:197-205. [PMID: 32700293 DOI: 10.1007/s42000-020-00217-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 05/29/2020] [Indexed: 10/23/2022]
Abstract
INTRODUCTION Triple A (Allgrove) syndrome is a rare autosomal recessive disorder characterized by cardinal features of primary adrenal insufficiency (AI) due to adrenocorticotropic hormone (ACTH) resistance, achalasia, and alacrima. It is frequently associated with neurological manifestations such as autonomic dysfunction, cognitive dysfunction, cranial nerve, or motor involvement. Amyotrophy/motor neuron disease is a rare association. CASE PRESENTATION We herein report a 19-year-old boy diagnosed with triple A syndrome (TAS), with the classic triad of ACTH-resistant adrenal insufficiency, achalasia, and alacrima. Additionally, he had distal spinal muscle amyotrophy. Alacrima was the earliest feature evident in early childhood, followed by achalasia at 12 years of age. He was diagnosed with AI at the age of 19 years, with involvement of the mineralocorticoid axis. Further evaluation showed a neurogenic pattern on electromyography, consistent with a diagnosis of motor neuron disease. A nerve conduction study revealed no significant neuropathy. Genetic analysis confirmed a pathogenic homozygous mutation in the AAAS gene c.43C>A, p.Gln15Lys. He improved with glucocorticoid and mineralocorticoid supplements for AI, and nifedipine for achalasia and artificial tears. He is planned for esophagomyotomy. CONCLUSION In any young patient with AI not due to congenital adrenal hyperplasia, Allgrove syndrome should be ruled out. Though mineralocorticoid sparing pattern is classical, it can rarely be involved, as seen in the index case. Various components of the syndrome, as well as amyotrophy and other neurologic features, may present in a metachronous fashion. Hence, a high index of clinical suspicion can aid in early diagnosis and management.
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Affiliation(s)
| | - Rahul Gupta
- Department of Endocrinology, PGIMER, Chandigarh, 160012, India
| | | | - Liza Das
- Department of Endocrinology, PGIMER, Chandigarh, 160012, India
| | - Pinaki Dutta
- Department of Endocrinology, PGIMER, Chandigarh, 160012, India.
- PGIMER, 108, Nehru Extension Block, Chandigarh, 160012, India.
| | - Anil Bhansali
- Department of Endocrinology, PGIMER, Chandigarh, 160012, India
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Kores K, Konc J, Bren U. Mechanistic Insights into Side Effects of Troglitazone and Rosiglitazone Using a Novel Inverse Molecular Docking Protocol. Pharmaceutics 2021; 13:315. [PMID: 33670968 PMCID: PMC7997210 DOI: 10.3390/pharmaceutics13030315] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/23/2021] [Accepted: 02/25/2021] [Indexed: 12/15/2022] Open
Abstract
Thiazolidinediones form drugs that treat insulin resistance in type 2 diabetes mellitus. Troglitazone represents the first drug from this family, which was removed from use by the FDA due to its hepatotoxicity. As an alternative, rosiglitazone was developed, but it was under the careful watch of FDA for a long time due to suspicion, that it causes cardiovascular diseases, such as heart failure and stroke. We applied a novel inverse molecular docking protocol to discern the potential protein targets of both drugs. Troglitazone and rosiglitazone were docked into predicted binding sites of >67,000 protein structures from the Protein Data Bank and examined. Several new potential protein targets with successfully docked troglitazone and rosiglitazone were identified. The focus was devoted to human proteins so that existing or new potential side effects could be explained or proposed. Certain targets of troglitazone such as 3-oxo-5-beta-steroid 4-dehydrogenase, neutrophil collagenase, stromelysin-1, and VLCAD were pinpointed, which could explain its hepatoxicity, with additional ones indicating that its application could lead to the treatment/development of cancer. Results for rosiglitazone discerned its interaction with members of the matrix metalloproteinase family, which could lead to cancer and neurodegenerative disorders. The concerning cardiovascular side effects of rosiglitazone could also be explained. We firmly believe that our results deepen the mechanistic understanding of the side effects of both drugs, and potentially with further development and research maybe even help to minimize them. On the other hand, the novel inverse molecular docking protocol on the other hand carries the potential to develop into a standard tool to predict possible cross-interactions of drug candidates potentially leading to adverse side effects.
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Affiliation(s)
- Katarina Kores
- Laboratory of Physical Chemistry and Chemical Thermodynamics, Faculty for Chemistry and Chemical Technology, University of Maribor, Smetanova 17, SI-2000 Maribor, Slovenia; (K.K.); (J.K.)
| | - Janez Konc
- Laboratory of Physical Chemistry and Chemical Thermodynamics, Faculty for Chemistry and Chemical Technology, University of Maribor, Smetanova 17, SI-2000 Maribor, Slovenia; (K.K.); (J.K.)
- Laboratory for Molecular Modeling, Theory Department, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
| | - Urban Bren
- Laboratory of Physical Chemistry and Chemical Thermodynamics, Faculty for Chemistry and Chemical Technology, University of Maribor, Smetanova 17, SI-2000 Maribor, Slovenia; (K.K.); (J.K.)
- Department of Applied Natural Sciences, Faculty of Mathematics, Natural Sciences and Information Technologies, University of Primorska, Glagoljaška 8, SI-6000 Koper, Slovenia
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20
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Volkova NI, Davidenko IY, Reshetnikov IB, Brovkina SS. [Allgrove syndrome: how to suspect the problem? Endocrinologists experience]. ACTA ACUST UNITED AC 2020; 66:64-69. [PMID: 33351314 DOI: 10.14341/probl10296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 04/10/2020] [Accepted: 04/11/2020] [Indexed: 11/06/2022]
Abstract
Allgrove syndrome (Alacrimia, Achalasia, Adrenal insufficiency, AAAS) is a rare autosomal recessive multisystem disease characterized by chronic adrenal insufficiency, alacrimia and achalasia of the cardia. This disease is often associated with various neurological disorders, amyotrophy, in such cases, it is named 4A and 5A syndrome, but sometimes there is also 2A syndrom. The occurrence of the disease is due to a mutation in the gene AAAS (12q13), which encodes the protein ALADIN. Here is a clinical observation of a patient with Allgrove syndrome. The patient had a typical clinic: alacrimia, achalasia, adrenal insufficiency, convulsive syndrome. However, a neurological disorder, manifested by convulsive syndrome, passed with time. Despite the full clinical picture, the diagnosis was made only after 14 years. Allgrove syndrome was verified through genetic analysis revealed a pathogenic mutation c.43C>T gene AAAS. Progression of the severity of alacrimia and need of glucocorticoids over time was noted. We shown the difficulty of diagnosis is due to the lack of awareness of clinicians about the disease, the importance of interdisciplinary interaction, as well as the need for follow-up of such patients.
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Vezzoli V, Duminuco P, Pogliaghi G, Saccone M, Cangiano B, Rosatelli MC, Meloni A, Persani L, Bonomi M. Two novel truncating variants of the AAAS gene causative of the triple A syndrome. J Endocrinol Invest 2020; 43:973-982. [PMID: 31939195 DOI: 10.1007/s40618-020-01180-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 01/06/2020] [Indexed: 01/15/2023]
Abstract
PURPOSE The triple A syndrome (AAAS) is an inherited condition associated with mutations in the AAAS gene, which encodes a protein of 546 amino acids known as ALADIN (alacrima achalasia adrenal insufficiency neurologic disorder) whose function is not well understood. This protein belongs to the WD-repeat family of regulatory proteins and is located in the nuclear pore complexes. Only a few cohorts of AAAS patients have been reported and fully characterized. Thus, the objective of the present study was to report on a mini cohort of Italian AAAS patients and to get insights on their predisposing genetic defects. METHODS Genetic analysis of AAAS gene in triple A syndrome patient and molecular and functional characterization of the novel identified allelic variants. RESULTS Here we describe three newly diagnosed cases of AAAS, in whom genetic analysis allowed us to identify two novel allelic variants in the AAAS gene: the frameshift substitution c.765 dupT (p.Gly256Trp fsX67) in exon 8 and the splice site mutation in intron 11(c.997-2 A > G, IVS11-2A > G). Both variants result in a truncated non-functional protein, as we demonstrate by transcript analysis and expression studies. CONCLUSIONS Our findings establish a pathogenic role for both new variants. Moreover, our data highlight the essential role of the C-terminal domain of the protein for its correct targeting and function and underline the importance of sequencing splice sites surrounding the intron-exon junctions to ensure accurate molecular diagnosis and correct genetic counseling in AAAS patients.
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Affiliation(s)
- V Vezzoli
- Dipartimento di Scienze Cliniche e di Comunità, Division of Endocrine and Metabolic Diseases and Lab. of Endocrine and Metabolic Research, Dipartimento di Medicina Endocrino-Metabolica, Università degli studi di Milano, IRCCS Istituto Auxologico Italiano, Piazzale Brescia 20, 20149, Milano, Italy
| | - P Duminuco
- Dipartimento di Scienze Cliniche e di Comunità, Division of Endocrine and Metabolic Diseases and Lab. of Endocrine and Metabolic Research, Dipartimento di Medicina Endocrino-Metabolica, Università degli studi di Milano, IRCCS Istituto Auxologico Italiano, Piazzale Brescia 20, 20149, Milano, Italy
| | - G Pogliaghi
- Dipartimento di Scienze Cliniche e di Comunità, Division of Endocrine and Metabolic Diseases and Lab. of Endocrine and Metabolic Research, Dipartimento di Medicina Endocrino-Metabolica, Università degli studi di Milano, IRCCS Istituto Auxologico Italiano, Piazzale Brescia 20, 20149, Milano, Italy
| | - M Saccone
- Dipartimento di Scienze Cliniche e di Comunità, Division of Endocrine and Metabolic Diseases and Lab. of Endocrine and Metabolic Research, Dipartimento di Medicina Endocrino-Metabolica, Università degli studi di Milano, IRCCS Istituto Auxologico Italiano, Piazzale Brescia 20, 20149, Milano, Italy
| | - B Cangiano
- Dipartimento di Scienze Cliniche e di Comunità, Division of Endocrine and Metabolic Diseases and Lab. of Endocrine and Metabolic Research, Dipartimento di Medicina Endocrino-Metabolica, Università degli studi di Milano, IRCCS Istituto Auxologico Italiano, Piazzale Brescia 20, 20149, Milano, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - M C Rosatelli
- Pediatric Hospital "Microcitemico" Antonio Cao, Azienda Ospedaliera Brotzu, University of Cagliari, Cagliary, Italy
| | - A Meloni
- Pediatric Hospital "Microcitemico" Antonio Cao, Azienda Ospedaliera Brotzu, University of Cagliari, Cagliary, Italy
| | - L Persani
- Dipartimento di Scienze Cliniche e di Comunità, Division of Endocrine and Metabolic Diseases and Lab. of Endocrine and Metabolic Research, Dipartimento di Medicina Endocrino-Metabolica, Università degli studi di Milano, IRCCS Istituto Auxologico Italiano, Piazzale Brescia 20, 20149, Milano, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - M Bonomi
- Dipartimento di Scienze Cliniche e di Comunità, Division of Endocrine and Metabolic Diseases and Lab. of Endocrine and Metabolic Research, Dipartimento di Medicina Endocrino-Metabolica, Università degli studi di Milano, IRCCS Istituto Auxologico Italiano, Piazzale Brescia 20, 20149, Milano, Italy.
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.
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22
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Wang S, Qi J, Zhu M, Wang M, Nie J. AURKA rs2273535 T>A Polymorphism Associated With Cancer Risk: A Systematic Review With Meta-Analysis. Front Oncol 2020; 10:1040. [PMID: 32733797 PMCID: PMC7357424 DOI: 10.3389/fonc.2020.01040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 05/26/2020] [Indexed: 12/29/2022] Open
Abstract
Aurora kinase A (AURKA) is a cell cycle regulatory serine/threonine kinase that promotes cell cycle progression. It plays an important role in regulating the transition from G2 to M phase during mitosis. The association between the AURKA rs2273535 T>A polymorphism and cancer risk has been investigated, but the results remain inconsistent. To get a more accurate conclusion, we conducted a comprehensive meta-analysis of 36 case-control studies, involving 22,884 cancer cases and 30,497 healthy controls. Crude odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to determine the association of interest. Pooled analysis indicated that the AURKA rs2273535 T>A polymorphism increased the overall risk of cancer (homozygous: OR = 1.17, 95% CI = 1.04-1.33; recessive: OR = 1.15, 95% CI = 1.05-1.25; allele: OR = 1.07, 95% CI = 1.02-1.13). Stratification analysis by cancer type further showed that this polymorphism was associated with an increased breast cancer risk. This meta-analysis indicated that the AURKA rs2273535 T>A polymorphism was associated with an overall increased cancer risk, especially breast cancer. Further validation experiments are needed to strengthen our conclusion.
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Affiliation(s)
- Shujie Wang
- Anhui Province Key Laboratory of Medical Physics and Technology, Center of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China.,Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, China
| | - Jian Qi
- Anhui Province Key Laboratory of Medical Physics and Technology, Center of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China.,Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, China
| | - Meiling Zhu
- Department of Oncology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Meng Wang
- Hefei Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Hefei, China
| | - Jinfu Nie
- Anhui Province Key Laboratory of Medical Physics and Technology, Center of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China.,Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, China.,Hefei Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Hefei, China
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23
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Bock JO, Ortea I. Re-analysis of SARS-CoV-2-infected host cell proteomics time-course data by impact pathway analysis and network analysis: a potential link with inflammatory response. Aging (Albany NY) 2020; 12:11277-11286. [PMID: 32575076 PMCID: PMC7343490 DOI: 10.18632/aging.103524] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 05/30/2020] [Indexed: 12/11/2022]
Abstract
Coronavirus disease 2019 (COVID-19), caused by an outbreak of the severe acute respiratory syndrome-coronavirus 2 (SARS-CoV-2) in Wuhan, China, has led to an unprecedented health and economic crisis worldwide. To develop treatments that can stop or lessen the symptoms and severity of SARS-CoV-2 infection, it is critical to understand how the virus behaves inside human cells, and so far studies in this area remain scarce. A recent study investigated translatome and proteome host cell changes induced in vitro by SARS-CoV-2. Here, we use the publicly available proteomics data from this study to re-analyze the in vitro cellular consequences of SARS-CoV-2 infection by impact pathways analysis and network analysis. Notably, proteins linked to the inflammatory response, but also proteins related to chromosome segregation during mitosis, were found to be altered in response to viral infection. Upregulation of inflammatory response proteins is in line with the propagation of inflammatory reaction and lung injury that is observed in advanced stages of COVID-19 patients and which worsens with age.
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Affiliation(s)
| | - Ignacio Ortea
- Proteomics Unit, Universidad de Cádiz and Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), Cádiz 11002, Spain
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24
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Burdine RD, Preston CC, Leonard RJ, Bradley TA, Faustino RS. Nucleoporins in cardiovascular disease. J Mol Cell Cardiol 2020; 141:43-52. [PMID: 32209327 DOI: 10.1016/j.yjmcc.2020.02.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 02/19/2020] [Accepted: 02/25/2020] [Indexed: 01/01/2023]
Abstract
Cardiovascular disease is a pressing health problem with significant global health, societal, and financial burdens. Understanding the molecular basis of polygenic cardiac pathology is thus essential to devising novel approaches for management and treatment. Recent identification of uncharacterized regulatory functions for a class of nuclear envelope proteins called nucleoporins offers the opportunity to understand novel putative mechanisms of cardiac disease development and progression. Consistent reports of nucleoporin deregulation associated with ischemic and dilated cardiomyopathies, arrhythmias and valvular disorders suggests that nucleoporin impairment may be a significant but understudied variable in cardiopathologic disorders. This review discusses and converges existing literature regarding nuclear pore complex proteins and their association with cardiac pathologies, and proposes a role for nucleoporins as facilitators of cardiac disease.
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Affiliation(s)
- Ryan D Burdine
- Genetics and Genomics Group, Sanford Research, 2301 E. 60(th) Street N., Sioux Falls, SD 57104, United States of America; School of Health Sciences, University of South Dakota, 414 E Clark St, Vermillion, SD 57069, United States of America
| | - Claudia C Preston
- Genetics and Genomics Group, Sanford Research, 2301 E. 60(th) Street N., Sioux Falls, SD 57104, United States of America
| | - Riley J Leonard
- Genetics and Genomics Group, Sanford Research, 2301 E. 60(th) Street N., Sioux Falls, SD 57104, United States of America
| | - Tyler A Bradley
- Genetics and Genomics Group, Sanford Research, 2301 E. 60(th) Street N., Sioux Falls, SD 57104, United States of America
| | - Randolph S Faustino
- Genetics and Genomics Group, Sanford Research, 2301 E. 60(th) Street N., Sioux Falls, SD 57104, United States of America; Department of Pediatrics, Sanford School of Medicine of the University of South Dakota, 1400 W. 22(nd) Street, Sioux Falls, SD 57105, United States of America.
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25
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Wang L, Qu J, Liang Y, Zhao D, Rehman FU, Qin K, Zhang X. Identification and validation of key genes with prognostic value in non-small-cell lung cancer via integrated bioinformatics analysis. Thorac Cancer 2020; 11:851-866. [PMID: 32059076 PMCID: PMC7113067 DOI: 10.1111/1759-7714.13298] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 12/15/2019] [Accepted: 12/17/2019] [Indexed: 12/15/2022] Open
Abstract
Background Lung cancer is the most common cause of cancer‐related death among all human cancers and the five‐year survival rates are only 23%. The precise molecular mechanisms of non‐small cell lung cancer (NSCLC) are still unknown. The aim of this study was to identify and validate the key genes with prognostic value in lung tumorigenesis. Methods Four GEO datasets were obtained from the Gene Expression Omnibus (GEO) database. Common differentially expressed genes (DEGs) were selected for Kyoto Encyclopedia of Genes and Genomes pathway analysis and Gene Ontology enrichment analysis. Protein‐protein interaction (PPI) networks were constructed using the STRING database and visualized by Cytoscape software and Molecular Complex Detection (MCODE) were utilized to PPI network to pick out meaningful DEGs. Hub genes, filtered from the CytoHubba, were validated using the Gene Expression Profiling Interactive Analysis database. The expressions and prognostic values of hub genes were carried out through Gene Expression Profiling Interactive Analysis (GEPIA) and Kaplan‐Meier plotter. Finally, quantitative PCR and the Oncomine database were used to verify the differences in the expression of hub genes in lung cancer cells and tissues. Results A total of 121 DEGs (49 upregulated and 72 downregulated) were identified from four datasets. The PPI network was established with 121 nodes and 588 protein pairs. Finally, AURKA, KIAA0101, CDC20, MKI67, CHEK1, HJURP, and OIP5 were selected by Cytohubba, and they all correlated with worse overall survival (OS) in NSCLC. Conclusion The results showed that AURKA, KIAA0101, CDC20, MKI67, CHEK1, HJURP, and OIP5 may be critical genes in the development and prognosis of NSCLC. Key points Our results indicated that AURKA, KIAA0101, CDC20, MKI67, CHEK1, HJURP, and OIP5 may be critical genes in the development and prognosis of NSCLC. Our methods showed a new way to explore the key genes in cancer development.
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Affiliation(s)
- Li Wang
- Department of Medical Oncology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Jialin Qu
- Department of Medical Oncology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Yu Liang
- Department of Medical Oncology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Deze Zhao
- Department of Medical Oncology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Faisal Ul Rehman
- Department of Medical Oncology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Kang Qin
- Department of Medical Oncology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Xiaochun Zhang
- Department of Medical Oncology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
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26
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Polat R, Ustyol A, Tuncez E, Guran T. A broad range of symptoms in allgrove syndrome: single center experience in Southeast Anatolia. J Endocrinol Invest 2020; 43:185-196. [PMID: 31435881 DOI: 10.1007/s40618-019-01099-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 08/09/2019] [Indexed: 11/09/2022]
Abstract
BACKGROUND Allgrove syndrome (OMIM 231550) is a rare autosomal recessive disease characterized by non-CAH primary adrenal insufficiency (non-CAH PAI), alacrima, and achalasia. It is caused by mutations in the AAAS gene. The syndrome is also associated with variable progressive neurological impairment and dermatological abnormalities. METHODS AND RESULTS We diagnosed 23 patients from 14 families with Allgrove syndrome, based on the presence of at least two characteristic symptoms, usually adrenal insufficiency and alacrima, between 2008 and 2018. A previously described nonsense variant of AAAS was detected in 19 patients from 12 families at homozygous state. Another novel homozygous mutation (c.394-397delCTGT) in AAAS was detected in four patients from two families. Presenting symptoms were alacrima (23/23; 100%), adrenal insufficiency (18/23; 78%), achalasia (13/23; 57%), short stature/growth retardation (16/23; 70%), hyperreflexia (15/23; 65%), palmoplantar hyperkeratosis (13/23; 57%), hyperpigmentation of the skin (10/23; 43%), hypoglycemia-induced convulsion (7/23; 30%), swallowing difficulty and vomiting (6/23; 26%). Serum DHEAS concentrations were low in all patients (23/23; 100%). CONCLUSIONS Clinical symptoms vary even among patients carrying the same mutation. Triple A syndrome should be considered in the etiology of non-CAH PAI in Arab populations and in Southeast Turkey. Any child with non-CAH PAI should be evaluated for the presence of alacrima and/or achalasia or family history of alacrima and/or achalasia. Children with alacrima and/or achalasia should also be investigated for adrenal insufficiency. Definitive molecular diagnosis is essential for early diagnosis and management of adrenal insufficiency, neurological symptoms, and growth retardation in patients and early diagnosis of as yet asymptomatic cases in the family, together with genetic counseling.
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Affiliation(s)
- R Polat
- Department of Pediatric Endocrinology and Diabetes, Sakarya University, Ministry of Health, Sakarya Training and Research Hospital, 54100, Sakarya, AZ, Turkey.
| | - A Ustyol
- Department of Pediatric Endocrinology and Diabetes, Ministry of Health, Sanlıurfa Training and Research Hospital, Sanlıurfa, Turkey
| | - E Tuncez
- Department of Genetics, Ministry of Health, Sanlıurfa Training and Research Hospital, Sanlıurfa, Turkey
| | - T Guran
- Department of Pediatric Endocrinology and Diabetes, Marmara University, Ministry of Health, Pendik Training and Research Hospital, Istanbul, Turkey
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The Nuclear Arsenal of Cilia. Dev Cell 2019; 49:161-170. [DOI: 10.1016/j.devcel.2019.03.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 12/07/2018] [Accepted: 03/08/2019] [Indexed: 12/31/2022]
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Jühlen R, Landgraf D, Huebner A, Koehler K. Triple A patient cells suffering from mitotic defects fail to localize PGRMC1 to mitotic kinetochore fibers. Cell Div 2018; 13:8. [PMID: 30455725 PMCID: PMC6230297 DOI: 10.1186/s13008-018-0041-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Accepted: 10/25/2018] [Indexed: 01/10/2023] Open
Abstract
Background Membrane-associated progesterone receptors are restricted to the endoplasmic reticulum and are shown to regulate the activity of cytochrome P450 enzymes which are involved in steroidogenesis or drug detoxification. PGRMC1 and PGRMC2 belong to the membrane-associated progesterone receptor family and are of interest due to their suspected role during cell cycle. PGRMC1 and PGRMC2 are thought to bind to each other; thereby suppressing entry into mitosis. We could previously report that PGRMC2 interacts with the nucleoporin ALADIN which when mutated results in the autosomal recessive disorder triple A syndrome. ALADIN is a novel regulator of mitotic controller Aurora kinase A and depletion of this nucleoporin leads to microtubule instability. Results In the current study, we present that proliferation is decreased when ALADIN, PGRMC1 or PGRMC2 are over-expressed. Furthermore, we find that depletion of ALADIN results in mislocalization of Aurora kinase A and PGRMC1 in metaphase cells. Additionally, PGRMC2 is over-expressed in triple A patient fibroblasts. Conclusion Our results emphasize the possibility that loss of the regulatory association between ALADIN and PGRMC2 gives rise to a depletion of PGRMC1 at kinetochore fibers. This observation may explain part of the symptoms seen in triple A syndrome patients.
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Affiliation(s)
- Ramona Jühlen
- 1Klinik und Poliklinik für Kinder- und Jugendmedizin, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany.,2Present Address: Institute for Molecular Biology and Medicine, Université Libre de Bruxelles, 6041 Charleroi, Belgium
| | - Dana Landgraf
- 1Klinik und Poliklinik für Kinder- und Jugendmedizin, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
| | - Angela Huebner
- 1Klinik und Poliklinik für Kinder- und Jugendmedizin, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
| | - Katrin Koehler
- 1Klinik und Poliklinik für Kinder- und Jugendmedizin, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
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Patt H, Koehler K, Lodha S, Jadhav S, Yerawar C, Huebner A, Thakkar K, Arya S, Nair S, Goroshi M, Ganesh H, Sarathi V, Lila A, Bandgar T, Shah N. Phenotype-genotype spectrum of AAA syndrome from Western India and systematic review of literature. Endocr Connect 2017; 6:901-913. [PMID: 29180348 PMCID: PMC5705786 DOI: 10.1530/ec-17-0255] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 10/25/2017] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To study genotype-phenotype spectrum of triple A syndrome (TAS). METHODS Retrospective chart analysis of Indian TAS patients (cohort 1, n = 8) and review of genotyped TAS cases reported in world literature (cohort 2, n = 133, 68 publications). RESULTS Median age at presentation was 4.75 years (range: 4-10) and 5 years (range: 1-42) for cohorts 1 and 2, respectively. Alacrima, adrenal insufficiency (AI), achalasia and neurological dysfunction (ND) were seen in 8/8, 8/8, 7/8 and 4/8 patients in cohort 1, and in 99, 91, 93 and 79% patients in cohort 2, respectively. In both cohorts, alacrima was present since birth while AI and achalasia manifested before ND. Mineralocorticoid deficiency (MC) was uncommon (absent in cohort 1, 12.5% in cohort 2). In cohort 1, splice-site mutation in exon 1 (p.G14Vfs*45) was commonest, followed by a deletion in exon 8 (p.S255Vfs*36). Out of 65 mutations in cohort 2, 14 were recurrent and five exhibited regional clustering. AI was more prevalent, more often a presenting feature, and was diagnosed at younger age in T group (those with truncating mutations) as compared to NT (non-truncating mutations) group. ND was more prevalent, more common a presenting feature, with later age at onset in NT as compared to T group. CONCLUSION Clinical profile of our patients is similar to that of patients worldwide. Alacrima is the earliest and most consistent finding. MC deficiency is uncommon. Some recurrent mutations show regional clustering. p.G14Vfs*45 and p.S255Vfs*36 account for majority of AAAS mutations in our cohort. Phenotype of T group differs from that of NT group and merits future research.
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Affiliation(s)
- Hiren Patt
- Department of EndocrinologySeth G.S. Medical College & KEM Hospital, Mumbai, Maharashtra, India
| | - Katrin Koehler
- Department of PaediatricsUniversity Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | | | - Swati Jadhav
- Department of EndocrinologySeth G.S. Medical College & KEM Hospital, Mumbai, Maharashtra, India
| | - Chaitanya Yerawar
- Department of EndocrinologySeth G.S. Medical College & KEM Hospital, Mumbai, Maharashtra, India
| | - Angela Huebner
- Department of PaediatricsUniversity Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Kunal Thakkar
- Department of EndocrinologySeth G.S. Medical College & KEM Hospital, Mumbai, Maharashtra, India
| | - Sneha Arya
- Department of EndocrinologySeth G.S. Medical College & KEM Hospital, Mumbai, Maharashtra, India
| | - Sandhya Nair
- Department of EndocrinologySeth G.S. Medical College & KEM Hospital, Mumbai, Maharashtra, India
| | - Manjunath Goroshi
- Department of EndocrinologySeth G.S. Medical College & KEM Hospital, Mumbai, Maharashtra, India
| | - Hosahithlu Ganesh
- Department of EndocrinologyAJ Institute of Medical sciences, Mangalore, India
| | - Vijaya Sarathi
- Department of EndocrinologyVydehi Institute of Medical Sciences and Research Center, Bengaluru, India
| | - Anurag Lila
- Department of EndocrinologySeth G.S. Medical College & KEM Hospital, Mumbai, Maharashtra, India
| | - Tushar Bandgar
- Department of EndocrinologySeth G.S. Medical College & KEM Hospital, Mumbai, Maharashtra, India
| | - Nalini Shah
- Department of EndocrinologySeth G.S. Medical College & KEM Hospital, Mumbai, Maharashtra, India
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Flück CE. MECHANISMS IN ENDOCRINOLOGY: Update on pathogenesis of primary adrenal insufficiency: beyond steroid enzyme deficiency and autoimmune adrenal destruction. Eur J Endocrinol 2017; 177:R99-R111. [PMID: 28450305 DOI: 10.1530/eje-17-0128] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 04/19/2017] [Accepted: 04/27/2017] [Indexed: 01/02/2023]
Abstract
Primary adrenal insufficiency (PAI) is potentially life threatening, but rare. In children, genetic defects prevail whereas adults suffer more often from acquired forms of PAI. The spectrum of genetic defects has increased in recent years with the use of next-generation sequencing methods and now has reached far beyond genetic defects in all known enzymes of adrenal steroidogenesis. Cofactor disorders such as P450 oxidoreductase (POR) deficiency manifesting as a complex form of congenital adrenal hyperplasia with a broad clinical phenotype have come to the fore. In patients with isolated familial glucocorticoid deficiency (FGD), in which no mutations in the genes for the ACTH receptor (MC2R) or its accessory protein MRAP have been found, non-classic steroidogenic acute regulatory protein (StAR) and CYP11A1 mutations have been described; and more recently novel mutations in genes such as nicotinamide nucleotide transhydrogenase (NNT) and thioredoxin reductase 2 (TRXR2) involved in the maintenance of the mitochondrial redox potential and generation of NADPH important for steroidogenesis and ROS detoxication have been discovered. In addition, whole exome sequencing approach also solved the genetics of some syndromic forms of PAI including IMAGe syndrome (CDKN1C), Irish traveler syndrome (MCM4), MIRAGE syndrome (SAMD9); and most recently a syndrome combining FGD with steroid-resistant nephrotic syndrome and ichthyosis caused by mutations in the gene for sphingosine-1-phosphate lyase 1 (SGPL1). This review intends do give an update on novel genetic forms of PAI and their suggested mechanism of disease. It also advocates for advanced genetic work-up of PAI (especially in children) to reach a specific diagnosis for better counseling and treatment.
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Affiliation(s)
- Christa E Flück
- Departments of Pediatrics and Clinical Research, Bern University Children's Hospital Inselspital, University of Bern, Bern, Switzerland
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Reimann J, Kohlschmidt N, Tolksdorf K, Weis J, Kuchelmeister K, Roos A. Muscle Pathology as a Diagnostic Clue to Allgrove Syndrome. J Neuropathol Exp Neurol 2017; 76:337-341. [PMID: 28371804 DOI: 10.1093/jnen/nlx016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Allgrove or triple A syndrome is a rare autosomal recessive disorder that can present with a variable range of multi-system manifestations, including optic atrophy, cerebellar ataxia, upper and lower motoneuron signs and various neuropathic abnormalities. These cases are a diagnostic challenge, particularly when the eponymous combination of achalasia, Addisonianism and alacrima is incomplete. Therefore, it is in the differential diagnosis for multisystem conditions and should be known to pathologists who diagnose disorders of skeletal muscle. Here, we describe new findings in skeletal muscle histology from the case of a boy of consanguineous Turkish origin whose achalasia provided the only specific clinical clue to the diagnosis. These include myocyte nuclear abnormalities with partially abnormal anti-lamin A/C immunohistochemistry and altered nuclear ultrastructure but without overt abnormalities of nuclear pore morphology. In this case, the condition was associated with a hitherto unreported c.762delC mutation in the nucleoporin gene AAAS.
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Affiliation(s)
- Jens Reimann
- From Muscle Lab, Department of Neurology, University of Bonn Medical Centre, Bonn, Germany (JR, KT), Institute of Clinical Genetics, Bonn, Germany (NK), Institute of Neuropathology, RWTH Aachen University Hospital, Aachen, Germany (JW, AR), Department of Neuropathology, University of Bonn Medical Centre, Bonn, Germany (KK), Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V, Department of Bioanalytics, Tissue Omics group, Dortmund, Germany (AR), John Walton Muscular Dystrophy Research Centre (JWMDRC), Newcastle University, International Centre for Life, Central Parkway, UK, Newcastle upon Tyne (AR)
| | - Nicolai Kohlschmidt
- From Muscle Lab, Department of Neurology, University of Bonn Medical Centre, Bonn, Germany (JR, KT), Institute of Clinical Genetics, Bonn, Germany (NK), Institute of Neuropathology, RWTH Aachen University Hospital, Aachen, Germany (JW, AR), Department of Neuropathology, University of Bonn Medical Centre, Bonn, Germany (KK), Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V, Department of Bioanalytics, Tissue Omics group, Dortmund, Germany (AR), John Walton Muscular Dystrophy Research Centre (JWMDRC), Newcastle University, International Centre for Life, Central Parkway, UK, Newcastle upon Tyne (AR)
| | - Karen Tolksdorf
- From Muscle Lab, Department of Neurology, University of Bonn Medical Centre, Bonn, Germany (JR, KT), Institute of Clinical Genetics, Bonn, Germany (NK), Institute of Neuropathology, RWTH Aachen University Hospital, Aachen, Germany (JW, AR), Department of Neuropathology, University of Bonn Medical Centre, Bonn, Germany (KK), Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V, Department of Bioanalytics, Tissue Omics group, Dortmund, Germany (AR), John Walton Muscular Dystrophy Research Centre (JWMDRC), Newcastle University, International Centre for Life, Central Parkway, UK, Newcastle upon Tyne (AR)
| | - Joachim Weis
- From Muscle Lab, Department of Neurology, University of Bonn Medical Centre, Bonn, Germany (JR, KT), Institute of Clinical Genetics, Bonn, Germany (NK), Institute of Neuropathology, RWTH Aachen University Hospital, Aachen, Germany (JW, AR), Department of Neuropathology, University of Bonn Medical Centre, Bonn, Germany (KK), Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V, Department of Bioanalytics, Tissue Omics group, Dortmund, Germany (AR), John Walton Muscular Dystrophy Research Centre (JWMDRC), Newcastle University, International Centre for Life, Central Parkway, UK, Newcastle upon Tyne (AR)
| | - Klaus Kuchelmeister
- From Muscle Lab, Department of Neurology, University of Bonn Medical Centre, Bonn, Germany (JR, KT), Institute of Clinical Genetics, Bonn, Germany (NK), Institute of Neuropathology, RWTH Aachen University Hospital, Aachen, Germany (JW, AR), Department of Neuropathology, University of Bonn Medical Centre, Bonn, Germany (KK), Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V, Department of Bioanalytics, Tissue Omics group, Dortmund, Germany (AR), John Walton Muscular Dystrophy Research Centre (JWMDRC), Newcastle University, International Centre for Life, Central Parkway, UK, Newcastle upon Tyne (AR)
| | - Andreas Roos
- From Muscle Lab, Department of Neurology, University of Bonn Medical Centre, Bonn, Germany (JR, KT), Institute of Clinical Genetics, Bonn, Germany (NK), Institute of Neuropathology, RWTH Aachen University Hospital, Aachen, Germany (JW, AR), Department of Neuropathology, University of Bonn Medical Centre, Bonn, Germany (KK), Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V, Department of Bioanalytics, Tissue Omics group, Dortmund, Germany (AR), John Walton Muscular Dystrophy Research Centre (JWMDRC), Newcastle University, International Centre for Life, Central Parkway, UK, Newcastle upon Tyne (AR)
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32
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Carvalhal S, Stevense M, Koehler K, Naumann R, Huebner A, Jessberger R, Griffis ER. ALADIN is required for the production of fertile mouse oocytes. Mol Biol Cell 2017; 28:2470-2478. [PMID: 28768824 PMCID: PMC5597320 DOI: 10.1091/mbc.e16-03-0158] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 06/27/2017] [Accepted: 07/27/2017] [Indexed: 11/11/2022] Open
Abstract
The nucleoporin ALADIN is required for multiple stages of oocyte maturation and for supporting embryonic divisions postfertilization. Asymmetric cell divisions depend on the precise placement of the spindle apparatus. In mammalian oocytes, spindles assemble close to the cell’s center, but chromosome segregation takes place at the cell periphery where half of the chromosomes are expelled into small, nondeveloping polar bodies at anaphase. By dividing so asymmetrically, most of the cytoplasmic content within the oocyte is preserved, which is critical for successful fertilization and early development. Recently we determined that the nucleoporin ALADIN participates in spindle assembly in somatic cells, and we have also shown that female mice homozygously null for ALADIN are sterile. In this study we show that this protein is involved in specific meiotic stages, including meiotic resumption, spindle assembly, and spindle positioning. In the absence of ALADIN, polar body extrusion is compromised due to problems in spindle orientation and anchoring at the first meiotic anaphase. ALADIN null oocytes that mature far enough to be fertilized in vitro are unable to support embryonic development beyond the two-cell stage. Overall, we find that ALADIN is critical for oocyte maturation and appears to be far more essential for this process than for somatic cell divisions.
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Affiliation(s)
- Sara Carvalhal
- Centre for Gene Regulation and Expression, School of Life Sciences, University of Dundee, Dundee DD1 5EH, United Kingdom
| | - Michelle Stevense
- Institute of Physiological Chemistry, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
| | - Katrin Koehler
- Department of Paediatrics, University Hospital Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
| | - Ronald Naumann
- Max Planck Institute of Molecular Cell Biology and Genetics, 01307 Dresden, Germany
| | - Angela Huebner
- Department of Paediatrics, University Hospital Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
| | - Rolf Jessberger
- Institute of Physiological Chemistry, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
| | - Eric R Griffis
- Centre for Gene Regulation and Expression, School of Life Sciences, University of Dundee, Dundee DD1 5EH, United Kingdom
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Jühlen R, Landgraf D, Huebner A, Koehler K. Identification of a novel putative interaction partner of the nucleoporin ALADIN. Biol Open 2016; 5:1697-1705. [PMID: 27754849 PMCID: PMC5155539 DOI: 10.1242/bio.021162] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
It has been shown that the nucleoporin ALADIN plays a significant role in the redox homeostasis of the cell, but its function in steroidogenesis contributing to adrenal atrophy in triple A syndrome remains largely unknown. In an attempt to identify new interaction partners of ALADIN, co-immunoprecipitation followed by proteome analysis was conducted in different expression models using the human adrenocortical tumour cell line NCI-H295R. Our results suggest an interaction of ALADIN with the microsomal protein PGRMC2. PGRMC2 is shown to be activity regulator of CYP P450 enzymes and, therefore, to be a possible target for adrenal dysregulation in triple A syndrome. We show that there is a sexual dimorphism regarding the expression of Pgrmc2 in adrenals and gonads of wild-type (WT) and Aaas knock-out (KO) mice. Female Aaas KO mice are sterile due to delayed oocyte maturation and meiotic spindle assembly. A participation in meiotic spindle assembly confirms the recently investigated involvement of ALADIN in mitosis and emphasises an interaction with PGRMC2 which is a regulator of the cell cycle. By identification of a novel interaction partner of ALADIN, we provide novel aspects for future research of the function of ALADIN during cell cycle and for new insights into the pathogenesis of triple A syndrome.
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Affiliation(s)
- Ramona Jühlen
- Klinik und Poliklinik für Kinder- und Jugendmedizin, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden 01307, Germany
| | - Dana Landgraf
- Klinik und Poliklinik für Kinder- und Jugendmedizin, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden 01307, Germany
| | - Angela Huebner
- Klinik und Poliklinik für Kinder- und Jugendmedizin, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden 01307, Germany
| | - Katrin Koehler
- Klinik und Poliklinik für Kinder- und Jugendmedizin, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden 01307, Germany
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