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Timsina J, Dinasarapu A, Kilic-Berkmen G, Budde J, Sung YJ, Klein AM, Cruchaga C, Jinnah HA. Blood-Based Proteomics for Adult-Onset Focal Dystonias. Ann Neurol 2024. [PMID: 38578115 DOI: 10.1002/ana.26929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/27/2024] [Accepted: 03/10/2024] [Indexed: 04/06/2024]
Abstract
OBJECTIVES The adult-onset focal dystonias are characterized by over-active muscles leading to abnormal movements. For most cases, the etiology and pathogenesis remain unknown. In the current study, unbiased proteomics methods were used to identify potential changes in blood plasma proteins. METHODS A large-scale unbiased proteomics screen was used to compare proteins (N = 6,345) in blood plasma of normal healthy controls (N = 49) with adult-onset focal dystonia (N = 143) consisting of specific subpopulations of cervical dystonia (N = 45), laryngeal dystonia (N = 49), and blepharospasm (N = 49). Pathway analyses were conducted to identify relevant biological pathways. Finally, protein changes were used to build a prediction model for dystonia. RESULTS After correction for multiple comparisons, 15 proteins were associated with adult-onset focal dystonia. Subgroup analyses revealed some proteins were shared across the dystonia subgroups while others were unique to 1 subgroup. The top biological pathways involved changes in the immune system, metal ion transport, and reactive oxygen species. A 4-protein model showed high accuracy in discriminating control individuals from dystonia cases [average area under the curve (AUC) = 0.89]. INTERPRETATION These studies provide novel insights into the etiopathogenesis of dystonia, as well as novel potential biomarkers. ANN NEUROL 2024.
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Affiliation(s)
- Jigyasha Timsina
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- NeuroGenomics and Informatics Center, Washington University School of Medicine, St. Louis, MO, USA
| | - Ashok Dinasarapu
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| | - Gamze Kilic-Berkmen
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| | - John Budde
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- NeuroGenomics and Informatics Center, Washington University School of Medicine, St. Louis, MO, USA
| | - Yun Ju Sung
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- NeuroGenomics and Informatics Center, Washington University School of Medicine, St. Louis, MO, USA
- Division of Biostatistics, Washington University School of Medicine, St. Louis, MO, USA
| | - Adam M Klein
- Department of Otolaryngology, Emory University School of Medicine, Atlanta, GA, USA
| | - Carlos Cruchaga
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
- NeuroGenomics and Informatics Center, Washington University School of Medicine, St. Louis, MO, USA
- Hope Center for Neurologic Diseases, Washington University in St. Louis, St. Louis, MO, USA
| | - H A Jinnah
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, USA
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Gu M, Wang S, Di A, Wu D, Hai C, Liu X, Bai C, Su G, Yang L, Li G. Combined Transcriptome and Metabolome Analysis of Smooth Muscle of Myostatin Knockout Cattle. Int J Mol Sci 2023; 24:ijms24098120. [PMID: 37175828 PMCID: PMC10178895 DOI: 10.3390/ijms24098120] [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: 03/31/2023] [Revised: 04/25/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
Myostatin (MSTN), a growth and differentiation factor, plays an important role in regulating skeletal muscle growth and development. MSTN knockout (MSTN-KO) leads to skeletal muscle hypertrophy and regulates metabolic homeostasis. Moreover, MSTN is also detected in smooth muscle. However, the effect of MSTN-KO on smooth muscle has not yet been reported. In this study, combined metabolome and transcriptome analyses were performed to investigate the metabolic and transcriptional profiling in esophageal smooth muscles of MSTN-KO Chinese Luxi Yellow cattle (n = 5, 24 months, average body weight 608.5 ± 17.62 kg) and wild-type (WT) Chinese Luxi Yellow cattle (n = 5, 24 months, average body weight 528.25 ± 11.03 kg). The transcriptome was sequenced using the Illumina Novaseq™ 6000 sequence platform. In total, 337 significantly up- and 129 significantly down-regulated genes were detected in the MSTN-KO cattle compared with the WT Chinese Luxi Yellow cattle. Functional enrichment analysis indicated that the DEGs were mainly enriched in 67 signaling pathways, including cell adhesion molecules, tight junction, and the cGMP-PKG signaling pathway. Metabolomics analysis by liquid chromatography-tandem mass spectrometry (LC-MS/MS) identified 130 differential metabolites between the groups, with 56 up-regulated and 74 down-regulated in MSTN knockout cattle compared with WT cattle. Differential metabolites were significantly enriched in 31 pathways, including glycerophospholipid metabolism, histidine metabolism, glutathione metabolism, and purine metabolism. Transcriptome and metabolome were combined to analyze the significant enrichment pathways, and there were three metabolically related pathways, including histidine metabolism, purine metabolism, and arginine and proline metabolism. These results provide important references for in-depth research on the effect of MSTN knockout on smooth muscle.
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Affiliation(s)
- Mingjuan Gu
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Science, Inner Mongolia University, Hohhot 010021, China
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Song Wang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Science, Inner Mongolia University, Hohhot 010021, China
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Anqi Di
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Science, Inner Mongolia University, Hohhot 010021, China
| | - Di Wu
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Science, Inner Mongolia University, Hohhot 010021, China
| | - Chao Hai
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Science, Inner Mongolia University, Hohhot 010021, China
| | - Xuefei Liu
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Science, Inner Mongolia University, Hohhot 010021, China
| | - Chunling Bai
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Science, Inner Mongolia University, Hohhot 010021, China
| | - Guanghua Su
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Science, Inner Mongolia University, Hohhot 010021, China
| | - Lei Yang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Science, Inner Mongolia University, Hohhot 010021, China
| | - Guangpeng Li
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Science, Inner Mongolia University, Hohhot 010021, China
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Costello SM, Cheney AM, Waldum A, Tripet B, Cotrina-Vidal M, Kaufmann H, Norcliffe-Kaufmann L, Lefcort F, Copié V. A Comprehensive NMR Analysis of Serum and Fecal Metabolites in Familial Dysautonomia Patients Reveals Significant Metabolic Perturbations. Metabolites 2023; 13:metabo13030433. [PMID: 36984872 PMCID: PMC10057143 DOI: 10.3390/metabo13030433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/06/2023] [Accepted: 03/14/2023] [Indexed: 03/18/2023] Open
Abstract
Central metabolism has a profound impact on the clinical phenotypes and penetrance of neurological diseases such as Alzheimer’s (AD) and Parkinson’s (PD) diseases, Amyotrophic Lateral Sclerosis (ALS) and Autism Spectrum Disorder (ASD). In contrast to the multifactorial origin of these neurological diseases, neurodevelopmental impairment and neurodegeneration in Familial Dysautonomia (FD) results from a single point mutation in the ELP1 gene. FD patients represent a well-defined population who can help us better understand the cellular networks underlying neurodegeneration, and how disease traits are affected by metabolic dysfunction, which in turn may contribute to dysregulation of the gut–brain axis of FD. Here, 1H NMR spectroscopy was employed to characterize the serum and fecal metabolomes of FD patients, and to assess similarities and differences in the polar metabolite profiles between FD patients and healthy relative controls. Findings from this work revealed noteworthy metabolic alterations reflected in energy (ATP) production, mitochondrial function, amino acid and nucleotide catabolism, neurosignaling molecules, and gut-microbial metabolism. These results provide further evidence for a close interconnection between metabolism, neurodegeneration, and gut microbiome dysbiosis in FD, and create an opportunity to explore whether metabolic interventions targeting the gut–brain–metabolism axis of FD could be used to redress or slow down the progressive neurodegeneration observed in FD patients.
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Affiliation(s)
- Stephanann M. Costello
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59717, USA
| | - Alexandra M. Cheney
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59717, USA
| | - Annie Waldum
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59717, USA
| | - Brian Tripet
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59717, USA
| | - Maria Cotrina-Vidal
- Department of Neurology, New York University School of Medicine, New York, NY 10017, USA
| | - Horacio Kaufmann
- Department of Neurology, New York University School of Medicine, New York, NY 10017, USA
| | | | - Frances Lefcort
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, MT 59717, USA
| | - Valérie Copié
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59717, USA
- Correspondence: ; Tel.: +1-406-994-7244
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A network approach reveals driver genes associated with survival of patients with triple-negative breast cancer. iScience 2021; 24:102451. [PMID: 34007962 PMCID: PMC8111681 DOI: 10.1016/j.isci.2021.102451] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 03/08/2021] [Accepted: 04/15/2021] [Indexed: 12/14/2022] Open
Abstract
We aimed to identify triple-negative breast cancer (TNBC) drivers that regulate survival time as predictive signatures that improve TNBC prognostication. Breast cancer (BrCa) transcriptomic tumor biopsies were analyzed, identifying network communities enriched with TNBC-specific differentially expressed genes (DEGs) and correlated strongly to TNBC status. Two anticorrelated modules correlated strongly to TNBC subtype and survival. Querying module-specific hubs and DEGs revealed transcriptional changes associated with high survival. Transcripts were nominated as biomarkers and tested as combinatoric ratios using receiver operator characteristic (ROC) analysis to assess survival prediction. ROC test rounds integrated genes with established interactions to hubs and DEGs of key modules, improving prediction. Finally, we tested whether integration of literature-derived genes for implicated hallmark cancer processes could improve prediction of survival. Complementary coexpression, differential expression, genetic interaction, and survival stratification integrated by ROC optimization uncovered a panel of “linchpin survival genes” predictive of patient survival, representing gene interactions in hallmark cancer processes. WGCNA identifies coexpression modules predicted to drive TNBC patient survival Module hubs and DEGs reveal transcriptional changes associated with high survival Nine genes act synergistically to influence TNBC progression, relapse, and survival These genes' levels represent reversible changes in TNBC hallmark cancer processes
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Abstract
BACKGROUND Formate is a one-carbon molecule at the crossroad between cellular and whole body metabolism, between host and microbiome metabolism, and between nutrition and toxicology. This centrality confers formate with a key role in human physiology and disease that is currently unappreciated. SCOPE OF REVIEW Here we review the scientific literature on formate metabolism, highlighting cellular pathways, whole body metabolism, and interactions with the diet and the gut microbiome. We will discuss the relevance of formate metabolism in the context of embryonic development, cancer, obesity, immunometabolism, and neurodegeneration. MAJOR CONCLUSIONS We will conclude with an outlook of some open questions bringing formate metabolism into the spotlight.
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Affiliation(s)
| | - Johannes Meiser
- Department of Oncology, Luxembourg Institute of Health, L-1526 Luxembourg, Luxembourg
| | - Alexei Vazquez
- Cancer Research UK Beatson Institute, Glasgow, UK; Institute of Cancer Sciences, University of Glasgow, Glasgow, UK.
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Vogel M, Moehrle B, Brown A, Eiwen K, Sakk V, Geiger H. HPRT and Purine Salvaging Are Critical for Hematopoietic Stem Cell Function. Stem Cells 2019; 37:1606-1614. [PMID: 31574190 DOI: 10.1002/stem.3087] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 08/23/2019] [Indexed: 12/17/2022]
Abstract
Adult hematopoietic stem cells (HSCs) maintain tissue homeostasis and regenerative capacity of the hematopoietic system through self-renewal and differentiation. Metabolism is recognized as an important regulatory entity controlling stem cells. As purine nucleotides are essential for metabolic functions, we analyzed the role of hypoxanthine guanine phosphoribosyl transferase (HPRT)-associated purine salvaging in HSCs. Here, we demonstrate that hematopoietic stem and progenitor cells (HSPCs) show a strong dependence on HPRT-associated purine salvaging. HSPCs with lower HPRT activity had a severely reduced competitive repopulation ability upon transplantation. Strikingly, HPRT deficiency resulted in altered cell-cycle progression, proliferation kinetics and mitochondrial membrane potential primarily in the HSC compartment, whereas more committed progenitors were less affected. Our data thus imply a unique and important role of HPRT and the purine salvage pathway for HSC function. Stem Cells 2019;37:1606-1614.
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Affiliation(s)
- Mona Vogel
- Institute of Molecular Medicine, Ulm University, Ulm, Germany
| | - Bettina Moehrle
- Institute of Molecular Medicine, Ulm University, Ulm, Germany
| | - Andreas Brown
- Institute of Molecular Medicine, Ulm University, Ulm, Germany
| | - Karina Eiwen
- Institute of Molecular Medicine, Ulm University, Ulm, Germany
| | - Vadim Sakk
- Institute of Molecular Medicine, Ulm University, Ulm, Germany
| | - Hartmut Geiger
- Institute of Molecular Medicine, Ulm University, Ulm, Germany.,Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center and University of Cincinnati, Cincinnati, Ohio, USA
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Liu H, Zeng Z, Wang S, Li T, Mastriani E, Li QH, Bao HX, Zhou YJ, Wang X, Liu Y, Liu W, Hu S, Gao S, Yu M, Qi Y, Shen Z, Wang H, Gao T, Dong L, Johnston RN, Liu SL. Main components of pomegranate, ellagic acid and luteolin, inhibit metastasis of ovarian cancer by down-regulating MMP2 and MMP9. Cancer Biol Ther 2017; 18:990-999. [PMID: 29173024 PMCID: PMC5718784 DOI: 10.1080/15384047.2017.1394542] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Ovarian cancer is the third most common cancer in the female reproductive organs and epithelial ovarian cancer has the highest lethality of all gynecological cancers. Pomegranate fruit juice (PFJ) has been shown to inhibit the growth of several types of cancer other than ovarian cancer. In this study, we exposed the ovarian cancer cell line A2780 to PFJ and two of its components (ellagic acid and luteolin). MTT and wound healing assays demonstrated that all three treatments suppressed the proliferation and migration of the ovarian cancer cells. In addition, western blotting and ELISA assays showed that the expression levels of MMP2 and MMP9 gradually decreased after treatment with increasing concentrations of ellagic acid and luteolin. To confirm our findings in the in vitro experiments, we used another ovarian cancer cell line, ES-2, in nude mice experiments. All three treatments inhibited tumor growth without obvious side-effects. Furthermore, compared with the control group, the expression levels of MMP2 and MMP9 were depressed. Ellagic acid induced a greater effect than luteolin, suggesting that ellagic acid might be a promising candidate for further preclinical testing for treatment of human ovarian cancer.
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Affiliation(s)
- Huidi Liu
- a Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China) , Harbin Medical University , Harbin , Heilongjiang Province , China.,b HMU-UCFM Centre for Infection and Genomics , Harbin Medical University , Harbin , Heilongjiang Province , China.,d Department of Biochemistry and Molecular Biology , University of Calgary , Calgary , Alberta , Canada
| | - Zheng Zeng
- a Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China) , Harbin Medical University , Harbin , Heilongjiang Province , China.,b HMU-UCFM Centre for Infection and Genomics , Harbin Medical University , Harbin , Heilongjiang Province , China
| | - Siwen Wang
- a Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China) , Harbin Medical University , Harbin , Heilongjiang Province , China.,b HMU-UCFM Centre for Infection and Genomics , Harbin Medical University , Harbin , Heilongjiang Province , China
| | - Ting Li
- a Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China) , Harbin Medical University , Harbin , Heilongjiang Province , China.,b HMU-UCFM Centre for Infection and Genomics , Harbin Medical University , Harbin , Heilongjiang Province , China
| | - Emilio Mastriani
- a Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China) , Harbin Medical University , Harbin , Heilongjiang Province , China.,b HMU-UCFM Centre for Infection and Genomics , Harbin Medical University , Harbin , Heilongjiang Province , China
| | - Qing-Hai Li
- a Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China) , Harbin Medical University , Harbin , Heilongjiang Province , China.,b HMU-UCFM Centre for Infection and Genomics , Harbin Medical University , Harbin , Heilongjiang Province , China
| | - Hong-Xia Bao
- a Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China) , Harbin Medical University , Harbin , Heilongjiang Province , China.,b HMU-UCFM Centre for Infection and Genomics , Harbin Medical University , Harbin , Heilongjiang Province , China
| | - Yu-Jie Zhou
- a Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China) , Harbin Medical University , Harbin , Heilongjiang Province , China.,b HMU-UCFM Centre for Infection and Genomics , Harbin Medical University , Harbin , Heilongjiang Province , China
| | - Xiaoyu Wang
- a Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China) , Harbin Medical University , Harbin , Heilongjiang Province , China.,b HMU-UCFM Centre for Infection and Genomics , Harbin Medical University , Harbin , Heilongjiang Province , China
| | - Yongfang Liu
- a Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China) , Harbin Medical University , Harbin , Heilongjiang Province , China.,b HMU-UCFM Centre for Infection and Genomics , Harbin Medical University , Harbin , Heilongjiang Province , China
| | - Wei Liu
- a Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China) , Harbin Medical University , Harbin , Heilongjiang Province , China.,b HMU-UCFM Centre for Infection and Genomics , Harbin Medical University , Harbin , Heilongjiang Province , China
| | - Sijing Hu
- a Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China) , Harbin Medical University , Harbin , Heilongjiang Province , China.,b HMU-UCFM Centre for Infection and Genomics , Harbin Medical University , Harbin , Heilongjiang Province , China
| | - Shan Gao
- a Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China) , Harbin Medical University , Harbin , Heilongjiang Province , China.,b HMU-UCFM Centre for Infection and Genomics , Harbin Medical University , Harbin , Heilongjiang Province , China
| | - Miao Yu
- a Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China) , Harbin Medical University , Harbin , Heilongjiang Province , China.,b HMU-UCFM Centre for Infection and Genomics , Harbin Medical University , Harbin , Heilongjiang Province , China
| | - Yingying Qi
- a Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China) , Harbin Medical University , Harbin , Heilongjiang Province , China.,b HMU-UCFM Centre for Infection and Genomics , Harbin Medical University , Harbin , Heilongjiang Province , China
| | - Zhihang Shen
- a Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China) , Harbin Medical University , Harbin , Heilongjiang Province , China.,b HMU-UCFM Centre for Infection and Genomics , Harbin Medical University , Harbin , Heilongjiang Province , China
| | - Hongyue Wang
- a Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China) , Harbin Medical University , Harbin , Heilongjiang Province , China.,b HMU-UCFM Centre for Infection and Genomics , Harbin Medical University , Harbin , Heilongjiang Province , China
| | - Tingting Gao
- a Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China) , Harbin Medical University , Harbin , Heilongjiang Province , China.,b HMU-UCFM Centre for Infection and Genomics , Harbin Medical University , Harbin , Heilongjiang Province , China
| | - Lingqin Dong
- a Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China) , Harbin Medical University , Harbin , Heilongjiang Province , China.,b HMU-UCFM Centre for Infection and Genomics , Harbin Medical University , Harbin , Heilongjiang Province , China
| | - Randal N Johnston
- d Department of Biochemistry and Molecular Biology , University of Calgary , Calgary , Alberta , Canada
| | - Shu-Lin Liu
- a Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China) , Harbin Medical University , Harbin , Heilongjiang Province , China.,b HMU-UCFM Centre for Infection and Genomics , Harbin Medical University , Harbin , Heilongjiang Province , China.,c Department of Microbiology, Immunology and Infectious Diseases , University of Calgary , Calgary , Alberta , Canada
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Tschirner SK, Bähre H, Kaever A, Schneider EH, Seifert R, Kaever V. Non-targeted metabolomics by high resolution mass spectrometry in HPRT knockout mice. Life Sci 2016; 156:68-73. [PMID: 27221022 DOI: 10.1016/j.lfs.2016.05.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 04/07/2016] [Accepted: 05/20/2016] [Indexed: 12/31/2022]
Abstract
AIMS Lesch-Nyhan disease (LND) is characterized by hyperuricemia as well as neurological and neuropsychiatric symptoms including repetitive self-injurious behavior. Symptoms are caused by a deficiency of the enzyme hypoxanthine-guanine phosphoribosyltransferase (HPRT) as a result of a mutation on the X chromosome. To elucidate the pathophysiology of LND, we performed a metabolite screening for brain and serum extracts from HPRT knockout mice as an animal model for LND. MAIN METHODS Analyses were performed by high performance liquid chromatography (HPLC)-coupled quadrupole time-of-flight mass spectrometry (QTOF-MS). KEY FINDINGS In brain extracts, we found six metabolites with significantly different contents in wild-type and HPRT-deficient mice. Two compounds we could identify as 5-aminoimidazole-4-carboxamide ribotide (AICAR) and 1-methylimidazole-4-acetic acid (1-MI4AA). Whereas AICAR was accumulated in brains of HPRT knockout mice, 1-MI4AA was decreased in these mice. SIGNIFICANCE Both metabolites play a role in histidine metabolism and, as a consequence, histamine metabolism. AICAR, in addition, is part of the purine metabolism. Our findings may help to better understand the mechanisms leading to the behavioral phenotype of LND.
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Affiliation(s)
- Sarah K Tschirner
- Institute of Pharmacology, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany.
| | - Heike Bähre
- Institute of Pharmacology, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany; Research Core Unit Metabolomics, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany.
| | - Alexander Kaever
- Department of Bioinformatics, Institute of Microbiology and Genetics, Georg-August-University Göttingen, Goldschmidtstr. 1, D-37077 Göttingen, Germany.
| | - Erich H Schneider
- Institute of Pharmacology, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany.
| | - Roland Seifert
- Institute of Pharmacology, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany.
| | - Volkhard Kaever
- Institute of Pharmacology, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany; Research Core Unit Metabolomics, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany.
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Knapp DJ, Breese GR. The Use of Perinatal 6-Hydroxydopamine to Produce a Rodent Model of Lesch-Nyhan Disease. Curr Top Behav Neurosci 2016; 29:265-277. [PMID: 27029809 DOI: 10.1007/7854_2016_444] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Lesch-Nyhan disease is a neurologically, metabolically, and behaviorally devastating condition that has eluded complete characterization and adequate treatment. While it is known that the disease is intimately associated with dysfunction of the hypoxanthine phosphoribosyltransferase 1 (HPRT1) gene that codes for an enzyme of purine metabolism (hypoxanthine-guanine phosphoribosyltransferase) and is associated with neurological, behavioral, as well as metabolic dysfunction, the mechanisms of the neurobehavioral manifestations are as yet unclear. However, discoveries over the past few decades not only have created useful novel animal models (e.g., the HPRT-deficient mouse and the serendipitously discovered perinatal 6-hydroxydopamine (6-OHDA lesion model), but also have expanded into epigenetic, genomic, and proteomic approaches to better understand the mechanisms underlying this disease. The perinatal 6-OHDA model, in addition to modeling self-injury and dopamine depletion in the clinical condition, also underscores the profound importance of development in the differential course of maladaptive progression in the face of a common/single neurotoxic insult at different ages. Recent developments from clinical and basic science efforts attest to the fact that while the disease would seem to have a simple single gene defect at its core, the manifestations of this defect are profound and unexpectedly diverse. Future efforts employing the 6-OHDA model and others in the context of the novel technologies of genome editing, chemo- and opto-genetics, epigenetics, and further studies on the mechanisms of stress-induced maladaptations in brain all hold promise in taking our understanding of this disease to the next level.
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Affiliation(s)
- Darin J Knapp
- School of Medicine, Department of Psychiatry and Bowles Center for Alcohol Studies, University of North Carolina, Chapel Hill, NC, 27599, USA.
| | - George R Breese
- School of Medicine, Department of Psychiatry and Bowles Center for Alcohol Studies, University of North Carolina, Chapel Hill, NC, 27599, USA
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