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Branco F, Cunha J, Mendes M, Vitorino C, Sousa JJ. Peptide-Hitchhiking for the Development of Nanosystems in Glioblastoma. ACS NANO 2024. [PMID: 38861272 DOI: 10.1021/acsnano.4c01790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
Glioblastoma (GBM) remains the epitome of aggressiveness and lethality in the spectrum of brain tumors, primarily due to the blood-brain barrier (BBB) that hinders effective treatment delivery, tumor heterogeneity, and the presence of treatment-resistant stem cells that contribute to tumor recurrence. Nanoparticles (NPs) have been used to overcome these obstacles by attaching targeting ligands to enhance therapeutic efficacy. Among these ligands, peptides stand out due to their ease of synthesis and high selectivity. This article aims to review single and multiligand strategies critically. In addition, it highlights other strategies that integrate the effects of external stimuli, biomimetic approaches, and chemical approaches as nanocatalytic medicine, revealing their significant potential in treating GBM with peptide-functionalized NPs. Alternative routes of parenteral administration, specifically nose-to-brain delivery and local treatment within the resected tumor cavity, are also discussed. Finally, an overview of the significant obstacles and potential strategies to overcome them are discussed to provide a perspective on this promising field of GBM therapy.
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Affiliation(s)
- Francisco Branco
- Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Joana Cunha
- Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Maria Mendes
- Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
- Coimbra Chemistry Centre, Institute of Molecular Sciences - IMS, Faculty of Sciences and Technology, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Carla Vitorino
- Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
- Coimbra Chemistry Centre, Institute of Molecular Sciences - IMS, Faculty of Sciences and Technology, University of Coimbra, 3004-535 Coimbra, Portugal
| | - João J Sousa
- Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
- Coimbra Chemistry Centre, Institute of Molecular Sciences - IMS, Faculty of Sciences and Technology, University of Coimbra, 3004-535 Coimbra, Portugal
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Liu B, Bukhari I, Li F, Ren F, Xia X, Hu B, Liu H, Meyer TF, Marshall BJ, Tay A, Fu Y, Wu W, Tang Y, Mi Y, Zheng PY. Enhanced LRP8 expression induced by Helicobacter pylori drives gastric cancer progression by facilitating β-Catenin nuclear translocation. J Adv Res 2024:S2090-1232(24)00131-0. [PMID: 38609049 DOI: 10.1016/j.jare.2024.04.002] [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: 02/01/2024] [Revised: 04/05/2024] [Accepted: 04/05/2024] [Indexed: 04/14/2024] Open
Abstract
INTRODUCTION Helicobacter pylori (H. pylori) infection has been associated with gastric carcinogenesis. However, the precise involvement of LRP8, the low-density lipoprotein receptor-related protein 8, in H. pylori pathogenesis and gastric cancer (GC) remains poorly understood. OBJECTIVES To investigate the potential role of LRP8 in H. pylori infection and gastric carcinogenesis. METHODS Three-dimensional human-derived gastric organoids (hGO) and gastric cancer organoids (hGCO) were synthesized from the tissues obtained from human donors. In this work, multi-omics combined with in vivo and in vitro studies were conducted to investigate the potential involvement of LRP8 in H. pylori-induced GC. RESULTS We found that H. pylori infection significantly upregulated the expression of LRP8 in human GC tissues, cells, organoids, and mouse gastric mucous. In particular, LRP8 exhibited a distinct enrichment in cancer stem cells (CSC). Functionally, silencing of LRP8 affected the formation and proliferation of tumor spheroids, while increased expression of LRP8 was associated with increased proliferation and stemness of GC cells and organoids. Mechanistically, LRP8 promotes the binding of E-cadherin to β-catenin, thereby promoting nuclear translocation and transcriptional activity of β-catenin. Furthermore, LRP8 interacts with the cytotoxin-associated gene A (CagA) to form the CagA/LRP8/β-catenin complex. This complex further amplifies H. pylori-induced β-catenin nuclear translocation, leading to increased transcription of inflammatory factors and CSC markers. Clinical analysis demonstrated that abnormal overexpression of LRP8 is correlated with a poor prognosis and resistance to 5-Fluorouracil in patients with GC. CONCLUSION Our findings provide valuable information on the molecular intricacies of H. pylori-induced gastric carcinogenesis, offering potential therapeutic targets and prognostic markers for GC.
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Affiliation(s)
- Bin Liu
- Henan Key Laboratory for Helicobacter pylori and Digestive Tract Microecology, Marshall Medical Research Center, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China; Academy of Medical Science, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Ihtisham Bukhari
- Henan Key Laboratory for Helicobacter pylori and Digestive Tract Microecology, Marshall Medical Research Center, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China; Academy of Medical Science, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Fazhan Li
- Henan Key Laboratory for Helicobacter pylori and Digestive Tract Microecology, Marshall Medical Research Center, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China; Academy of Medical Science, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Feifei Ren
- Henan Key Laboratory for Helicobacter pylori and Digestive Tract Microecology, Marshall Medical Research Center, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Xue Xia
- Henan Key Laboratory for Helicobacter pylori and Digestive Tract Microecology, Marshall Medical Research Center, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Baitong Hu
- Henan Key Laboratory for Helicobacter pylori and Digestive Tract Microecology, Marshall Medical Research Center, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China; Academy of Medical Science, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Haipeng Liu
- Clinical and Translational Research Center, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, China
| | - Thomas F Meyer
- Max Planck Institute for Infection Biology, Department of Molecular Biology, 10117 Berlin, Germany; Laboratory of Infection Oncology, Institute of Clinical Molecular Biology (IKMB), Christian-Albrechts University of Kiel, Kiel, Germany
| | - Barry J Marshall
- Helicobacter Pylori Research Laboratory, School of Biomedical Sciences, Marshall Centre for Infectious Disease Research and Training, University of Western Australia, Nedlands 6009, Australia
| | - Alfred Tay
- Helicobacter Pylori Research Laboratory, School of Biomedical Sciences, Marshall Centre for Infectious Disease Research and Training, University of Western Australia, Nedlands 6009, Australia
| | - Yuming Fu
- Gastrointestinal Surgery, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Wanqing Wu
- Gastrointestinal Surgery, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Youcai Tang
- Department of Pediatrics, the Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Yang Mi
- Henan Key Laboratory for Helicobacter pylori and Digestive Tract Microecology, Marshall Medical Research Center, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China.
| | - Peng-Yuan Zheng
- Henan Key Laboratory for Helicobacter pylori and Digestive Tract Microecology, Marshall Medical Research Center, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China.
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BİTMEZ B, ÇEVRELİ B, KAŞIKÇI E. Effect of thymol on oxidative stress and reelin signaling pathway in Alzheimer's disease model. Turk J Biol 2024; 48:70-79. [PMID: 38665779 PMCID: PMC11042864 DOI: 10.55730/1300-0152.2683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 02/27/2024] [Accepted: 02/01/2024] [Indexed: 04/28/2024] Open
Abstract
Background/aim The purpose of this study was to investigate how thymol affects cognitive functions and the levels of MDA, GSH, Aβ1-42, ApoE, reelin, and LRP8 in an AD model induced in male Wistar albino rats with the application of D-galactose (D-gal) and aluminum chloride (AlCl3). Materials and methods In this work, 3-month-old male Wistar albino rats were used. Group 1 served as the Control, Group 2 received 0.5 mL/day saline + 0.5 mL/day sunflower oil, Group 3 was administered 200 mg/kg/day AlCl3 + 60 mg/kg/day D-gal, Group 4 received 30 mg/kg/day thymol, and Group 5 was administered 200 mg/kg/day AlCl3 + 60 mg/kg/day D-gal + 30 mg/kg/day thymol. At the end of the 10-week experimental period, behavioral and memory tests were performed. GSH and MDA levels were measured in the obtained serum and brain tissue samples, while Aβ1-42, ApoE, reelin, and LRP8 levels were measured in brain tissue samples. Statistical analyses were performed using ANOVA test in Graphpad Prism V8.3 program. A p-value <0.05 was considered significant in intergroup analyses. Results When the novel object recognition test (NORT) results were evaluated, the Alzheimer + thymol (ALZ+TYM) group showed a significant increase in the recognition index (RI) and discrimination index (DI) compared to the Alzheimer (ALZ) group at the 24th hour. Thymol reduced working memory errors (WME), reference memory errors (RME), and maze completion time at 48, 72, and 96 hours when evaluated in terms of spatial memory in rats with Alzheimer's disease. Furthermore, Aβ1-42 and ApoE levels were increased in the ALZ group compared to the control (C), while reelin and LRP8 levels were decreased in the ALZ group compared to the C group. Conclusion The data we obtained suggest that thymol may play an effective role in cognitive processes against AD and have an anti-Alzheimer's disease effect.
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Affiliation(s)
- Barış BİTMEZ
- Department of Molecular Biology, Faculty of Engineering and Natural Sciences, Uskudar University, İstanbul,
Turkiye
| | - Burcu ÇEVRELİ
- Neuropsychopharmacology Research and Application Center, Uskudar Univesity, İstanbul,
Turkiye
| | - Emel KAŞIKÇI
- Department of Molecular Biology, Faculty of Engineering and Natural Sciences, Uskudar University, İstanbul,
Turkiye
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de La Harpe R, Zagkos L, Gill D, Cronjé HT, Karhunen V. Cerebrospinal and Brain Proteins Implicated in Neuropsychiatric and Risk Factor Traits: Evidence from Mendelian Randomization. Biomedicines 2024; 12:327. [PMID: 38397929 PMCID: PMC10886978 DOI: 10.3390/biomedicines12020327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 01/25/2024] [Accepted: 01/27/2024] [Indexed: 02/25/2024] Open
Abstract
Neuropsychiatric disorders present a global health challenge, necessitating an understanding of their molecular mechanisms for therapeutic development. Using Mendelian randomization (MR) analysis, this study explored associations between genetically predicted levels of 173 proteins in cerebrospinal fluid (CSF) and 25 in the brain with 14 neuropsychiatric disorders and risk factors. Follow-up analyses assessed consistency across plasma protein levels and gene expression in various brain regions. Proteins were instrumented using tissue-specific genetic variants, and colocalization analysis confirmed unbiased gene variants. Consistent MR and colocalization evidence revealed that lower cortical expression of low-density lipoprotein receptor-related protein 8, coupled higher abundance in the CSF and plasma, associated with lower fluid intelligence scores and decreased bipolar disorder risk. Additionally, elevated apolipoprotein-E2 and hepatocyte growth factor-like protein in the CSF and brain were related to reduced leisure screen time and lower odds of physical activity, respectively. Furthermore, elevated CSF soluble tyrosine-protein kinase receptor 1 level increased liability to attention deficit hyperactivity disorder and schizophrenia alongside lower fluid intelligence scores. This research provides genetic evidence supporting novel tissue-specific proteomic targets for neuropsychiatric disorders and their risk factors. Further exploration is necessary to understand the underlying biological mechanisms and assess their potential for therapeutic intervention.
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Affiliation(s)
- Roxane de La Harpe
- Unit of Internal Medicine, Department of Medicine, University Hospital of Lausanne, 1011 Lausanne, Switzerland
| | - Loukas Zagkos
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London SW7 2BX, UK; (L.Z.); (D.G.)
| | - Dipender Gill
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London SW7 2BX, UK; (L.Z.); (D.G.)
| | - Héléne T. Cronjé
- Department of Public Health, Section of Epidemiology, University of Copenhagen, 1165 Copenhagen, Denmark;
| | - Ville Karhunen
- Research Unit of Mathematical Sciences, Faculty of Science, University of Oulu, Fi-900014 Oulu, Finland;
- Research Unit of Population Health, Faculty of Medicine, University of Oulu, Fi-900014 Oulu, Finland
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Cui J, Qiu Y, Kang N, Lu J, Zheng L. Correlations of PCSK9 and LDLR Gene Polymorphisms and Serum PCSK9 Levels With Atherosclerosis and Lipid Metabolism in Patients on Maintenance Hemodialysis. J Clin Pharmacol 2023; 63:1430-1437. [PMID: 37563753 DOI: 10.1002/jcph.2332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 08/01/2023] [Indexed: 08/12/2023]
Abstract
This study is aimed at investigating the correlations of PCSK9 and LDLR gene polymorphisms as well as serum proprotein convertase subtilisin/kexin type 9 (PCSK9) levels with atherosclerosis and lipid metabolism in patients on maintenance hemodialysis (HD). A single nucleotide polymorphism at the E670G locus of the PCSK9 gene and the rs688 locus of the LDLR gene was analyzed by polymerase chain reaction-restriction fragment length polymorphism. All study subjects' blood lipid (triglyceride [TG], total cholesterol [TC], high-density lipoprotein cholesterol [HDL-C], and low-density lipoprotein cholesterol [LDL-C]) concentrations and lipoprotein(a) and PCSK9 levels were measured. The differences in blood lipid levels between different genotypes of the E670G locus of the PCSK9 gene and the rs688 locus of the LDLR gene in patients on maintenance HD with atherosclerosis were compared. Patients on maintenance HD with atherosclerosis at the E670G locus of the PCSK9 gene AG + GG genotype had higher levels of TG, TC, LDL-C, and lipoprotein(a) than the AA genotype, and lower levels of HDL-C than the AA genotype. Patients on maintenance HD with atherosclerosis at the rs688 locus of the LDLR gene CT + TT genotype had higher levels of TG, TC, LDL-C, and lipoprotein(a) than the CC genotype, and lower levels of HDL-C than the CC genotype. Serum PCSK9 contents in patients on maintenance HD with atherosclerosis were positively correlated with lipid indices (TG, TC, LDL-C, and lipoprotein(a)) and carotid ultrasound indices (intima-media thickness and resistance index), and negatively correlated with HDL-C, maximum systolic blood flow velocity, and minimum diastolic blood flow velocity (all P < .05).
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Affiliation(s)
- Jun Cui
- Department of Nephrology, Nantong Third People's Hospital, Affiliated Nantong Hospital 3 of Nantong University, Nantong, Jiangsu, China
| | - Yuxiang Qiu
- Department of Nephrology, Nantong Third People's Hospital, Affiliated Nantong Hospital 3 of Nantong University, Nantong, Jiangsu, China
| | - Ningsu Kang
- Department of Nephrology, Nantong Third People's Hospital, Affiliated Nantong Hospital 3 of Nantong University, Nantong, Jiangsu, China
| | - Jianxun Lu
- Department of Nephrology, Nantong Third People's Hospital, Affiliated Nantong Hospital 3 of Nantong University, Nantong, Jiangsu, China
| | - Lu Zheng
- Department of Nephrology, Nantong Third People's Hospital, Affiliated Nantong Hospital 3 of Nantong University, Nantong, Jiangsu, China
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Riitano G, Capozzi A, Recalchi S, Augusto M, Conti F, Misasi R, Garofalo T, Sorice M, Manganelli V. Role of Lipid Rafts on LRP8 Signaling Triggered by Anti-β2-GPI Antibodies in Endothelial Cells. Biomedicines 2023; 11:3135. [PMID: 38137358 PMCID: PMC10740635 DOI: 10.3390/biomedicines11123135] [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: 11/03/2023] [Revised: 11/16/2023] [Accepted: 11/23/2023] [Indexed: 12/24/2023] Open
Abstract
Antiphospholipid antibody syndrome is an autoimmune disease characterized by thrombosis and/or pregnancy morbidity in association with circulating antiphospholipid antibodies, mainly anti-β2 glycoprotein 1 antibodies (anti-β2-GPI antibodies). Previous studies demonstrated that the signaling pathway may involve lipid rafts, plasma membrane microdomains enriched in glycosphingolipid and cholesterol. In this study, we analyzed the signaling pathway of LRP8/ApoER2, a putative receptor of anti-β2-GPI antibodies, through lipid rafts in human endothelial cells. LRP8, Dab2 and endothelial nitric oxide synthase (e-NOS) phosphorylation were evaluated using Western blot, Nitric Oxide (NO) production with cytofluorimetric analysis, LRP8 enrichment in lipid rafts via sucrose gradient fractionation, and scanning confocal microscopy analysis of its association with ganglioside GM1 was also conducted. The analyses demonstrated that affinity-purified anti-β2-GPI antibodies induced LRP8 and Dab-2 phosphorylation, together with a significant decrease in e-NOS phosphorylation, with consequent decrease in NO intracellular production. These effects were almost completely prevented by Methyl-β-cyclodextrin (MβCD), indicating the involvement of lipid rafts. It was supported with the observation of LRP8 enrichment in lipid raft fractions and its association with ganglioside GM1, detected with scanning confocal microscopy. These findings demonstrate that LRP8 signaling triggered by anti-β2-GPI antibodies in endothelial cells occurs through lipid rafts. It represents a new task for valuable therapeutic approaches, such as raft-targeted therapy, including cyclodextrins and statins.
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Affiliation(s)
- Gloria Riitano
- Department of Experimental Medicine, “Sapienza” University of Rome, 00161 Rome, Italy; (G.R.); (A.C.); (S.R.); (R.M.); (T.G.); (V.M.)
| | - Antonella Capozzi
- Department of Experimental Medicine, “Sapienza” University of Rome, 00161 Rome, Italy; (G.R.); (A.C.); (S.R.); (R.M.); (T.G.); (V.M.)
| | - Serena Recalchi
- Department of Experimental Medicine, “Sapienza” University of Rome, 00161 Rome, Italy; (G.R.); (A.C.); (S.R.); (R.M.); (T.G.); (V.M.)
| | | | - Fabrizio Conti
- Rheumatology Unit, Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, “Sapienza” University of Rome, 00161 Rome, Italy;
| | - Roberta Misasi
- Department of Experimental Medicine, “Sapienza” University of Rome, 00161 Rome, Italy; (G.R.); (A.C.); (S.R.); (R.M.); (T.G.); (V.M.)
| | - Tina Garofalo
- Department of Experimental Medicine, “Sapienza” University of Rome, 00161 Rome, Italy; (G.R.); (A.C.); (S.R.); (R.M.); (T.G.); (V.M.)
| | - Maurizio Sorice
- Department of Experimental Medicine, “Sapienza” University of Rome, 00161 Rome, Italy; (G.R.); (A.C.); (S.R.); (R.M.); (T.G.); (V.M.)
| | - Valeria Manganelli
- Department of Experimental Medicine, “Sapienza” University of Rome, 00161 Rome, Italy; (G.R.); (A.C.); (S.R.); (R.M.); (T.G.); (V.M.)
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Bastone AL, Dziadek V, John-Neek P, Mansel F, Fleischauer J, Agyeman-Duah E, Schaudien D, Dittrich-Breiholz O, Schwarzer A, Schambach A, Rothe M. Development of an in vitro genotoxicity assay to detect retroviral vector-induced lymphoid insertional mutants. Mol Ther Methods Clin Dev 2023; 30:515-533. [PMID: 37693949 PMCID: PMC10491817 DOI: 10.1016/j.omtm.2023.08.017] [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: 10/24/2022] [Accepted: 08/18/2023] [Indexed: 09/12/2023]
Abstract
Safety assessment in retroviral vector-mediated gene therapy remains challenging. In clinical trials for different blood and immune disorders, insertional mutagenesis led to myeloid and lymphoid leukemia. We previously developed the In Vitro Immortalization Assay (IVIM) and Surrogate Assay for Genotoxicity Assessment (SAGA) for pre-clinical genotoxicity prediction of integrating vectors. Murine hematopoietic stem and progenitor cells (mHSPCs) transduced with mutagenic vectors acquire a proliferation advantage under limiting dilution (IVIM) and activate stem cell- and cancer-related transcriptional programs (SAGA). However, both assays present an intrinsic myeloid bias due to culture conditions. To detect lymphoid mutants, we differentiated mHSPCs to mature T cells and analyzed their phenotype, insertion site pattern, and gene expression changes after transduction with retroviral vectors. Mutagenic vectors induced a block in differentiation at an early progenitor stage (double-negative 2) compared to fully differentiated untransduced mock cultures. Arrested samples harbored high-risk insertions close to Lmo2, frequently observed in clinical trials with severe adverse events. Lymphoid insertional mutants displayed a unique gene expression signature identified by SAGA. The gene expression-based highly sensitive molecular readout will broaden our understanding of vector-induced oncogenicity and help in pre-clinical prediction of retroviral genotoxicity.
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Affiliation(s)
- Antonella L. Bastone
- Institute of Experimental Hematology, Hannover Medical School, Hannover, Germany
- REBIRTH – Research Center for Translational Regenerative Medicine, Hannover Medical School, Hannover, Germany
| | - Violetta Dziadek
- Institute of Experimental Hematology, Hannover Medical School, Hannover, Germany
- REBIRTH – Research Center for Translational Regenerative Medicine, Hannover Medical School, Hannover, Germany
| | - Philipp John-Neek
- Institute of Experimental Hematology, Hannover Medical School, Hannover, Germany
- REBIRTH – Research Center for Translational Regenerative Medicine, Hannover Medical School, Hannover, Germany
| | - Friederike Mansel
- Institute of Experimental Hematology, Hannover Medical School, Hannover, Germany
- REBIRTH – Research Center for Translational Regenerative Medicine, Hannover Medical School, Hannover, Germany
| | - Jenni Fleischauer
- Institute of Experimental Hematology, Hannover Medical School, Hannover, Germany
- REBIRTH – Research Center for Translational Regenerative Medicine, Hannover Medical School, Hannover, Germany
| | - Eric Agyeman-Duah
- Institute of Experimental Hematology, Hannover Medical School, Hannover, Germany
| | - Dirk Schaudien
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Hannover, Germany
| | | | - Adrian Schwarzer
- Institute of Experimental Hematology, Hannover Medical School, Hannover, Germany
- REBIRTH – Research Center for Translational Regenerative Medicine, Hannover Medical School, Hannover, Germany
- Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Axel Schambach
- Institute of Experimental Hematology, Hannover Medical School, Hannover, Germany
- REBIRTH – Research Center for Translational Regenerative Medicine, Hannover Medical School, Hannover, Germany
- Division of Hematology/Oncology, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Michael Rothe
- Institute of Experimental Hematology, Hannover Medical School, Hannover, Germany
- REBIRTH – Research Center for Translational Regenerative Medicine, Hannover Medical School, Hannover, Germany
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8
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Martinez-Carrasco A, Real R, Lawton M, Iwaki H, Tan MMX, Wu L, Williams NM, Carroll C, Hu MTM, Grosset DG, Hardy J, Ryten M, Foltynie T, Ben-Shlomo Y, Shoai M, Morris HR. Genetic meta-analysis of levodopa induced dyskinesia in Parkinson's disease. NPJ Parkinsons Dis 2023; 9:128. [PMID: 37652906 PMCID: PMC10471743 DOI: 10.1038/s41531-023-00573-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 08/16/2023] [Indexed: 09/02/2023] Open
Abstract
The genetic basis of levodopa-induced-dyskinesia (LiD) is poorly understood, and there have been few well-powered genome-wide studies. We performed a genome-wide survival meta-analyses to study the effect of genetic variation on the development of LiD in five separate longitudinal cohorts, and meta-analysed the results. We included 2784 PD patients, of whom 14.6% developed LiD. We found female sex (HR = 1.35, SE = 0.11, P = 0.007) and younger age at onset (HR = 1.8, SE = 0.14, P = 2 × 10-5) increased the probability of developing LiD. We identified three genetic loci significantly associated with time-to-LiD onset. rs72673189 on chromosome 1 (HR = 2.77, SE = 0.18, P = 1.53 × 10-8) located at the LRP8 locus, rs189093213 on chromosome 4 (HR = 3.06, SE = 0.19, P = 2.81 × 10-9) in the non-coding RNA LINC02353 locus, and rs180924818 on chromosome 16 (HR = 3.13, SE = 0.20, P = 6.27 × 10-9) in the XYLT1 locus. Based on a functional annotation analysis on chromosome 1, we determined that changes in DNAJB4 gene expression, close to LRP8, are an additional potential cause of increased susceptibility to LiD. Baseline anxiety status was significantly associated with LiD (OR = 1.14, SE = 0.03, P = 7.4 × 10-5). Finally, we performed a candidate variant analysis of previously reported loci, and found that genetic variability in ANKK1 (rs1800497, HR = 1.27, SE = 0.09, P = 8.89 × 10-3) and BDNF (rs6265, HR = 1.21, SE = 0.10, P = 4.95 × 10-2) loci were significantly associated with time to LiD in our large meta-analysis.
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Affiliation(s)
- Alejandro Martinez-Carrasco
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, UK.
- UCL Movement Disorders Centre, University College London, London, UK.
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, 20815, USA.
| | - Raquel Real
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, UK
- UCL Movement Disorders Centre, University College London, London, UK
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, 20815, USA
| | - Michael Lawton
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Hirotaka Iwaki
- Center for Alzheimer's and Related Dementias (CARD), National Institute on Aging and National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
- Data Tecnica International, Glen Echo, MD, USA
| | - Manuela M X Tan
- Department of Neurology, Oslo University Hospital, Oslo, Norway
| | - Lesley Wu
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, UK
- UCL Movement Disorders Centre, University College London, London, UK
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, 20815, USA
| | - Nigel M Williams
- Institute of Psychological Medicine and Clinical Neurosciences, MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Cardiff, UK
| | - Camille Carroll
- Faculty of Health, University of Plymouth, Plymouth, UK
- Translational and Clinical Research Institute, Newcastle University, Newcastle, UK
| | - Michele T M Hu
- Nuffield Department of Clinical Neurosciences, Division of Clinical Neurology, University of Oxford, Oxford, UK
- Oxford Parkinson's Disease Centre, University of Oxford, Oxford, UK
| | - Donald G Grosset
- School of Neuroscience and Psychology, University of Glasgow, Glasgow, UK
| | - John Hardy
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, 20815, USA
- Department of Neurodegenerative Diseases, UCL Queen Square Institute of Neurology, University College London, London, UK
- UK Dementia Research Institute, University College London, London, UK
- Reta Lila Weston Institute, UCL Queen Square Institute of Neurology, London, UK
- National Institute for Health Research (NIHR) University College London Hospitals Biomedical Research Centre, London, UK
- Institute for Advanced Study, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Mina Ryten
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, 20815, USA
- Genetics and Genomic Medicine, UCL Great Ormond Street Institute of Child Health, University College London, London, UK
- NIHR Great Ormond Street Hospital Biomedical Research Centre, University College London, London, UK
| | - Tom Foltynie
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, UK
| | - Yoav Ben-Shlomo
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Maryam Shoai
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, 20815, USA
- Department of Neurodegenerative Diseases, UCL Queen Square Institute of Neurology, University College London, London, UK
- UK Dementia Research Institute, University College London, London, UK
| | - Huw R Morris
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, UK.
- UCL Movement Disorders Centre, University College London, London, UK.
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, 20815, USA.
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Autoencoder Networks Decipher the Association between Lung Cancer and Alzheimer’s Disease. COMPUTATIONAL INTELLIGENCE AND NEUROSCIENCE 2022; 2022:2009545. [DOI: 10.1155/2022/2009545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 11/16/2022] [Accepted: 11/25/2022] [Indexed: 12/12/2022]
Abstract
Lung cancer is the most common malignancy and is responsible for the largest cancer-related mortality worldwide. Alzheimer’s disease is a degenerative neurological disease that burdens healthcare worldwide. While the two diseases are distinct, several transcriptomic studies have demonstrated they are linked. However, no concordant conclusion on how they are associated has been drawn. Since these studies utilized conventional bioinformatics methods, such as the differentially expressed gene (DEG) analysis, it is naturally expected that the proportion of DEGs having either the same or inverse directions in lung cancer and Alzheimer’s disease is substantial. This raises the inconsistency. Therefore, a novel bioinformatics method capable of determining the direction of association is desirable. In this study, the moderated t-tests were first used to identify DEGs that are shared by the two diseases. For the shared DEGs, separate autoencoder (AE) networks were trained to extract a one-dimensional representation (pseudogene) for each disease. Based on these pseudogenes, the association direction between lung cancer and Alzheimer’s disease was inferred. AE networks based on 266 shared DEGs revealed a comorbidity relationship between Alzheimer’s disease and lung cancer. Specifically, Spearman’s correlation coefficient between the predicted values using the two AE networks for the Alzheimer’s disease test set was 0.825 and for the lung cancer test set was 0.316. Novel bioinformatics methods such as an AE network may help decipher how distinct diseases are associated by providing the refined representations of dysregulated genes.
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Brain Region-Dependent Alternative Splicing of Alzheimer Disease (AD)-Risk Genes Is Associated With Neuropathological Features in AD. Int Neurourol J 2022; 26:S126-136. [PMID: 36503215 PMCID: PMC9767683 DOI: 10.5213/inj.2244258.129] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 11/20/2022] [Indexed: 11/30/2022] Open
Abstract
PURPOSE Alzheimer disease (AD) is one of the most complex diseases and is characterized by AD-related neuropathological features, including accumulation of amyloid-β plaques and tau neurofibrillary tangles. Dysregulation of alternative splicing (AS) contributes to these features, and there is heterogeneity in features across brain regions between AD patients, leading to different severity and progression rates; however, brain region-specific AS mechanisms still remain unclear. Therefore, we aimed to systemically investigate AS in multiple brain regions of AD patients and how they affect clinical features. METHODS We analyzed RNA sequencing (RNA-Seq) data obtained from brain regions (frontal and temporal) of AD patients. Reads were mapped to the hg19 reference genome using the STAR aligner, and exon skipping (ES) rates were estimated as percent spliced in (PSI) by rMATs. We focused on AD-risk genes discovered by genome-wide association studies, and accordingly evaluated associations between PSI of skipped exons in AD-risk genes and Braak stage and plaque density mean (PM) for each brain region. We also integrated whole-genome sequencing data of the ascertained samples with RNA-Seq data to identify genetic regulators of feature-associated ES. RESULTS We identified 26 and 41 ES associated with Braak stage in frontal and temporal regions, respectively, and 10 and 50 ES associated with PM. Among those, 10 were frontal-specific (CLU and NTRK2), 65 temporal-specific (HIF1A and TRPC4AP), and 26 shared ES (APP) that accompanied functional Gene Ontology terms, including axonogenesis in shared-ES genes. We further identified genetic regulators that account for 44 ES (44% of the total). Finally, we present as a case study the systematic regulation of an ES in APP, which is important in AD pathogenesis. CONCLUSION This study provides new insights into brain region-dependent AS regulation of the architecture of AD-risk genes that contributes to AD pathologies, ultimately allowing identification of a treatment target and region-specific biomarkers for AD.
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