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Krajewski O, Opiełka M, Urbanowicz K, Chojnowski K, Kochany P, Pawłowski K, Tomaszewska J, Peters GJ, Smoleński RT, Bełdzińska MM. Management of neurological symptoms in Lesch-Nyhan disease: A systematic review. Neurosci Biobehav Rev 2024; 165:105847. [PMID: 39117131 DOI: 10.1016/j.neubiorev.2024.105847] [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: 04/06/2024] [Revised: 07/08/2024] [Accepted: 08/05/2024] [Indexed: 08/10/2024]
Abstract
Lesch-Nyhan Disease (LND) is an X-linked recessive genetic disorder arising from hypoxanthine phosphoribosyltransferase 1 gene mutations, leading to a complete deficiency. LND presents a complex neurological profile characterized by generalized dystonia, motor dysfunctions and self-injurious behavior, which management is challenging. We conducted a systematic review of studies assessing the efficacy of pharmacological and non-pharmacological interventions in management of neurological symptoms in LND (PROSPERO registration number:CRD42023446513). Among 34 reviewed full-text papers; 22 studies were rated as having a high risk of bias. Considerable heterogeneity was found in studies regarding the timing of treatment implementation, adjunctive treatments and outcome assessment. Single-patient studies and clinical trials often showed contradictory results, while therapeutic failures were underreported. S-Adenosylmethionine and Deep Brain Stimulation were the most studied treatment methods and require further research to address inconsistencies. The evidence from levodopa studies underlines that optimal timing of treatment implementation should be thoroughly investigated. Standardized study design and reducing publication bias are crucial to overcome current limitations of assessing intervention efficacy in LND.
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Affiliation(s)
- Oliwier Krajewski
- Department of Biochemistry, Medical University of Gdansk, Gdansk 80-211, Poland
| | - Mikołaj Opiełka
- Department of Biochemistry, Medical University of Gdansk, Gdansk 80-211, Poland
| | | | - Karol Chojnowski
- Department of Biochemistry, Medical University of Gdansk, Gdansk 80-211, Poland; Department of Developmental Neurology, Medical University of Gdansk, Gdansk 80-211, Poland
| | - Paweł Kochany
- Department of Biochemistry, Medical University of Gdansk, Gdansk 80-211, Poland; Department of Medical Chemistry, Medical University of Gdansk, Gdansk 80-211, Poland
| | - Kacper Pawłowski
- Department of Biochemistry, Medical University of Gdansk, Gdansk 80-211, Poland
| | - Jagoda Tomaszewska
- Department of Biochemistry, Medical University of Gdansk, Gdansk 80-211, Poland
| | - Godefridus J Peters
- Department of Biochemistry, Medical University of Gdansk, Gdansk 80-211, Poland; Cancer Center Amsterdam, Amsterdam U.M.C., VU University Medical Center (VUMC), Department of Medical Oncology, Amsterdam 1081 HV, The Netherlands
| | - Ryszard T Smoleński
- Department of Biochemistry, Medical University of Gdansk, Gdansk 80-211, Poland.
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Daniels SD, Boison D. Bipolar mania and epilepsy pathophysiology and treatment may converge in purine metabolism: A new perspective on available evidence. Neuropharmacology 2023; 241:109756. [PMID: 37820933 PMCID: PMC10841508 DOI: 10.1016/j.neuropharm.2023.109756] [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: 04/11/2023] [Revised: 09/25/2023] [Accepted: 10/07/2023] [Indexed: 10/13/2023]
Abstract
Decreased ATPergic signaling is an increasingly recognized pathophysiology in bipolar mania disease models. In parallel, adenosine deficit is increasingly recognized in epilepsy pathophysiology. Under-recognized ATP and/or adenosine-increasing mechanisms of several antimanic and antiseizure therapies including lithium, valproate, carbamazepine, and ECT suggest a fundamental pathogenic role of adenosine deficit in bipolar mania to match the established role of adenosine deficit in epilepsy. The depletion of adenosine-derivatives within the purine cycle is expected to result in a compensatory increase in oxopurines (uric acid precursors) and secondarily increased uric acid, observed in both bipolar mania and epilepsy. Cortisol-based inhibition of purine conversion to adenosine-derivatives may be reflected in observed uric acid increases and the well-established contribution of cortisol to both bipolar mania and epilepsy pathology. Cortisol-inhibited conversion from IMP to AMP as precursor of both ATP and adenosine may represent a mechanism for treatment resistance common in both bipolar mania and epilepsy. Anti-cortisol therapies may therefore augment other treatments both in bipolar mania and epilepsy. Evidence linking (i) adenosine deficit with a decreased need for sleep, (ii) IMP/cGMP excess with compulsive hypersexuality, and (iii) guanosine excess with grandiose delusions may converge to suggest a novel theory of bipolar mania as a condition characterized by disrupted purine metabolism. The potential for disease-modification and prevention related to adenosine-mediated epigenetic changes in epilepsy may be mirrored in mania. Evaluating the purinergic effects of existing agents and validating purine dysregulation may improve diagnosis and treatment in bipolar mania and epilepsy and provide specific targets for drug development.
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Affiliation(s)
- Scott D Daniels
- Hutchings Psychiatric Center, New York State Office of Mental Health, Syracuse, NY, 13210, USA
| | - Detlev Boison
- Dept. of Neurosurgery, Robert Wood Johnson Medical School, Rutgers University, Piscataway, NJ, 08854, USA.
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Wan H, Wang W, Liu J, Zhang Y, Yang B, Hua R, Chen H, Chen S, Hua Q. Cochlear metabolomics, highlighting novel insights of purine metabolic alterations in age-related hearing loss. Hear Res 2023; 440:108913. [PMID: 37939412 DOI: 10.1016/j.heares.2023.108913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 09/29/2023] [Accepted: 11/02/2023] [Indexed: 11/10/2023]
Abstract
Aging is an inevitable phase in mammals that leads to health impairments, including hearing loss. Age-related hearing loss (AHL) leads to psychosocial problems and cognitive decline in the elderly. In this study, mean thresholds of auditory brainstem responses (ABR) and distortion-product otoacoustic emissions (DPOAE) increased at multiple frequencies in aged rats (14 months old) compared to young rats (2 months old). Using untargeted ultra-high performance liquid chromatography-mass spectroscopy (LC-MS), we quantified molecular metabolic markers in the cochlea of aged rats with hearing loss. A total of 137 different metabolites were identified in two groups, highlighting several prominent metabolic pathways related to purine metabolism; glycine, serine, and threonine metabolism; arginine and proline metabolism; and pyrimidine metabolism. In addition, the beneficial effects of purine supplementation were demonstrated in a mimetic model of senescent marginal cells (MCs). Overall, altered metabolic profiling is both the cause and manifestation of pathology, and our results suggest that cellular senescence and dysfunctional cochlear metabolism may contribute to the progression of AHL. These findings are seminal in elucidating the pathophysiological mechanisms underlying AHL and serve as a basis for future clinical predictions and interventions in AHL.
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Affiliation(s)
- Huanzhi Wan
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China; Research Institute of Otolaryngology-Head and Neck Surgery, Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China; The First Clinical School of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China
| | - Wenjing Wang
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China; Research Institute of Otolaryngology-Head and Neck Surgery, Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China; The First Clinical School of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China
| | - Jingchun Liu
- The First Clinical School of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China
| | - Yunlong Zhang
- Research Institute of Otolaryngology-Head and Neck Surgery, Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China; The First Clinical School of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China
| | - Bingqian Yang
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China; Research Institute of Otolaryngology-Head and Neck Surgery, Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China; The First Clinical School of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China
| | - Rongkai Hua
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China; Research Institute of Otolaryngology-Head and Neck Surgery, Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China; The First Clinical School of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China
| | - Huidong Chen
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China; Research Institute of Otolaryngology-Head and Neck Surgery, Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China; The First Clinical School of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China
| | - Shiming Chen
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China; Research Institute of Otolaryngology-Head and Neck Surgery, Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China.
| | - Qingquan Hua
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China; Research Institute of Otolaryngology-Head and Neck Surgery, Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China.
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Hunter S, Flaten E, Petersen C, Gervain J, Werker JF, Trainor LJ, Finlay BB. Babies, bugs and brains: How the early microbiome associates with infant brain and behavior development. PLoS One 2023; 18:e0288689. [PMID: 37556397 PMCID: PMC10411758 DOI: 10.1371/journal.pone.0288689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 06/30/2023] [Indexed: 08/11/2023] Open
Abstract
Growing evidence is demonstrating the connection between the microbiota gut-brain axis and neurodevelopment. Microbiota colonization occurs before the maturation of many neural systems and is linked to brain health. Because of this it has been hypothesized that the early microbiome interactions along the gut-brain axis evolved to promote advanced cognitive functions and behaviors. Here, we performed a pilot study with a multidisciplinary approach to test if the microbiota composition of infants is associated with measures of early cognitive development, in particular neural rhythm tracking; language (forward speech) versus non-language (backwards speech) discrimination; and social joint attention. Fecal samples were collected from 56 infants between four and six months of age and sequenced by shotgun metagenomic sequencing. Of these, 44 performed the behavioral Point and Gaze test to measure joint attention. Infants were tested on either language discrimination using functional near-infrared spectroscopy (fNIRS; 25 infants had usable data) or neural rhythm tracking using electroencephalogram (EEG; 15 had usable data). Infants who succeeded at the Point and Gaze test tended to have increased Actinobacteria and reduced Firmicutes at the phylum level; and an increase in Bifidobacterium and Eggerthella along with a reduction in Hungatella and Streptococcus at the genus level. Measurements of neural rhythm tracking associated negatively to the abundance of Bifidobacterium and positively to the abundance of Clostridium and Enterococcus for the bacterial abundances, and associated positively to metabolic pathways that can influence neurodevelopment, including branched chain amino acid biosynthesis and pentose phosphate pathways. No associations were found for the fNIRS language discrimination measurements. Although the tests were underpowered due to the small pilot sample sizes, potential associations were identified between the microbiome and measurements of early cognitive development that are worth exploring further.
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Affiliation(s)
- Sebastian Hunter
- Michael Smith Laboratories, University of British Columbia, Vancouver, BC, Canada
| | - Erica Flaten
- Department of Psychology, Neuroscience and Behaviour, McMaster University, Hamilton, Ontario, Canada
| | - Charisse Petersen
- Department of Pediatrics, BC Children’s Hospital, University of British Columbia, Vancouver, BC, Canada
- British Columbia Children’s Hospital, Vancouver, BC, Canada
| | - Judit Gervain
- University of Padua, Department of Developmental and Social Psychology, Padua, Italy
- University of Padua, Padova Neuroscience Center, Padua, Italy
- Université Paris Cité & CNRS, Integrative Neuroscience and Cognition Center, Paris, France
| | - Janet F. Werker
- Department of Psychology, University of British Columbia, Vancouver, BC, Canada
| | - Laurel J. Trainor
- Department of Psychology, Neuroscience and Behaviour, McMaster University, Hamilton, Ontario, Canada
- McMaster Institute for Music and the Mind, McMaster University, Hamilton, Ontario, Canada
- Rotman Research Institute, Baycrest Hospital, Toronto, Ontario, Canada
| | - Brett B. Finlay
- Michael Smith Laboratories, University of British Columbia, Vancouver, BC, Canada
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC, Canada
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, BC, Canada
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Ou ZY, Wang K, Shen WW, Deng G, Xu YY, Wang LF, Zai ZY, Ling YA, Zhang T, Peng XQ, Chen FH. Oncogenic FLT3 internal tandem duplication activates E2F1 to regulate purine metabolism in acute myeloid leukaemia. Biochem Pharmacol 2023; 210:115458. [PMID: 36803956 DOI: 10.1016/j.bcp.2023.115458] [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: 11/09/2022] [Revised: 01/28/2023] [Accepted: 02/13/2023] [Indexed: 02/19/2023]
Abstract
Oncogene FLT3 internal tandem duplication (FLT3-ITD) mutation accounts for 30 % of acute myeloid leukaemia (AML) cases and induces transformation. Previously, we found that E2F transcription factor 1 (E2F1) was involved in AML cell differentiation. Here, we reported that E2F1 expression was aberrantly upregulated in AML patients, especially in AML patients carrying FLT3-ITD. E2F1 knockdown inhibited cell proliferation and increased cell sensitivity to chemotherapy in cultured FLT3-ITD-positive AML cells. E2F1-depleted FLT3-ITD+ AML cells lost their malignancy as shown by the reduced leukaemia burden and prolonged survival in NOD-PrkdcscidIl2rgem1/Smoc mice receiving xenografts. Additionally, FLT3-ITD-driven transformation of human CD34+ hematopoietic stem and progenitor cells was counteracted by E2F1 knockdown. Mechanistically, FLT3-ITD enhanced the expression and nuclear accumulation of E2F1 in AML cells. Further study using chromatin immunoprecipitation-sequencing and metabolomics analyses revealed that ectopic FLT3-ITD promoted the recruitment of E2F1 on genes encoding key enzymatic regulators of purine metabolism and thus supported AML cell proliferation. Together, this study demonstrates that E2F1-activated purine metabolism is a critical downstream process of FLT3-ITD in AML and a potential target for FLT3-ITD+ AML patients.
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Affiliation(s)
- Zi-Yao Ou
- School of Pharmacy, Anhui Medical University, Hefei, Anhui, China; Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China; Anhui Laboratory of Inflammatory and Immune Disease, Anhui Medical University, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui, China
| | - Ke Wang
- Department of Clinical Pharmacology, The Second Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Wen-Wen Shen
- School of Pharmacy, Anhui Medical University, Hefei, Anhui, China; Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China; Anhui Laboratory of Inflammatory and Immune Disease, Anhui Medical University, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui, China
| | - Ge Deng
- School of Pharmacy, Anhui Medical University, Hefei, Anhui, China; Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China; Anhui Laboratory of Inflammatory and Immune Disease, Anhui Medical University, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui, China
| | - Ya-Yun Xu
- School of Pharmacy, Anhui Medical University, Hefei, Anhui, China; Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China; Anhui Laboratory of Inflammatory and Immune Disease, Anhui Medical University, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui, China
| | - Long-Fei Wang
- School of Pharmacy, Anhui Medical University, Hefei, Anhui, China; Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China; Anhui Laboratory of Inflammatory and Immune Disease, Anhui Medical University, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui, China
| | - Zhuo-Yan Zai
- School of Pharmacy, Anhui Medical University, Hefei, Anhui, China; Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China; Anhui Laboratory of Inflammatory and Immune Disease, Anhui Medical University, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui, China
| | - Yi-An Ling
- School of Pharmacy, Anhui Medical University, Hefei, Anhui, China; Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China; Anhui Laboratory of Inflammatory and Immune Disease, Anhui Medical University, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui, China
| | - Tao Zhang
- School of Pharmacy, Anhui Medical University, Hefei, Anhui, China; Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China; Anhui Laboratory of Inflammatory and Immune Disease, Anhui Medical University, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui, China
| | - Xiao-Qing Peng
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China.
| | - Fei-Hu Chen
- School of Pharmacy, Anhui Medical University, Hefei, Anhui, China; Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China; Anhui Laboratory of Inflammatory and Immune Disease, Anhui Medical University, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui, China.
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Navarro L, Gómez-Carballa A, Pischedda S, Montoto-Louzao J, Viz-Lasheras S, Camino-Mera A, Hinault T, Martinón-Torres F, Salas A. Sensogenomics of music and Alzheimer's disease: An interdisciplinary view from neuroscience, transcriptomics, and epigenomics. Front Aging Neurosci 2023; 15:1063536. [PMID: 36819725 PMCID: PMC9935844 DOI: 10.3389/fnagi.2023.1063536] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 01/11/2023] [Indexed: 02/05/2023] Open
Abstract
Introduction The relationship between music and Alzheimer's disease (AD) has been approached by different disciplines, but most of our outstanding comes from neuroscience. Methods First, we systematically reviewed the state-of-the-art of neuroscience and cognitive sciences research on music and AD (>100 studies), and the progress made on the therapeutic impact of music stimuli in memory. Next, we meta-analyzed transcriptomic and epigenomic data of AD patients to search for commonalities with genes and pathways previously connected to music in genome association, epigenetic, and gene expression studies. Results Our findings indicate that >93% of the neuroscience/ cognitive sciences studies indicate at least one beneficial effect of music on patients with neurodegenerative diseases, being improvements on memory and cognition the most frequent outcomes; other common benefits were on social behavior, mood and emotion, anxiety and agitation, quality of life, and depression. Out of the 334 music-related genes, 127 (38%) were found to be linked to epigenome/transcriptome analysis in AD (vs. healthy controls); some of them (SNCA, SLC6A4, ASCC2, FTH1, PLAUR and ARHGAP26) have been reported to be associated e.g. with musical aptitude and music effect on the transcriptome. Other music-related genes (GMPR, SELENBP1 and ADIPOR1) associated to neuropsychiatric, neurodegenerative diseases and music performance, emerged as hub genes in consensus co-expression modules detected between AD and music estimulated transcriptomes. In addition, we found connections between music, AD and dopamine related genes, with SCNA being the most remarkable - a gene previously associated with learning and memory, and neurodegenerative disorders (e.g., Parkinson's disease and AD). Discussion The present study indicate that the vast majority of neuroscientific studies unambiguously show that music has a beneficial effect on health, being the most common benefits relevant to Alzheimer's disease. These findings illuminate a new roadmap for genetic research in neurosciences, and musical interventions in AD and other neurodegenerative conditions.
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Affiliation(s)
- Laura Navarro
- Genetics, Vaccines and Infections Research Group (GENVIP), Instituto de Investigación Sanitaria de Santiago, Universidade de Santiago de Compostela, Santiago de Compostela, Galicia, Spain,Unidade de Xenética, Instituto de Ciencias Forenses, Facultade de Medicina, Universidade de Santiago de Compostela, and GenPoB Research Group, Instituto de Investigación Sanitaria (IDIS), Hospital Clínico Universitario de Santiago (SERGAS), Santiago de Compostela, Galicia, Spain,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBER-ES), Madrid, Spain
| | - Alberto Gómez-Carballa
- Genetics, Vaccines and Infections Research Group (GENVIP), Instituto de Investigación Sanitaria de Santiago, Universidade de Santiago de Compostela, Santiago de Compostela, Galicia, Spain,Unidade de Xenética, Instituto de Ciencias Forenses, Facultade de Medicina, Universidade de Santiago de Compostela, and GenPoB Research Group, Instituto de Investigación Sanitaria (IDIS), Hospital Clínico Universitario de Santiago (SERGAS), Santiago de Compostela, Galicia, Spain,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBER-ES), Madrid, Spain
| | - Sara Pischedda
- Genetics, Vaccines and Infections Research Group (GENVIP), Instituto de Investigación Sanitaria de Santiago, Universidade de Santiago de Compostela, Santiago de Compostela, Galicia, Spain,Unidade de Xenética, Instituto de Ciencias Forenses, Facultade de Medicina, Universidade de Santiago de Compostela, and GenPoB Research Group, Instituto de Investigación Sanitaria (IDIS), Hospital Clínico Universitario de Santiago (SERGAS), Santiago de Compostela, Galicia, Spain,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBER-ES), Madrid, Spain
| | - Julián Montoto-Louzao
- Genetics, Vaccines and Infections Research Group (GENVIP), Instituto de Investigación Sanitaria de Santiago, Universidade de Santiago de Compostela, Santiago de Compostela, Galicia, Spain,Unidade de Xenética, Instituto de Ciencias Forenses, Facultade de Medicina, Universidade de Santiago de Compostela, and GenPoB Research Group, Instituto de Investigación Sanitaria (IDIS), Hospital Clínico Universitario de Santiago (SERGAS), Santiago de Compostela, Galicia, Spain,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBER-ES), Madrid, Spain
| | - Sandra Viz-Lasheras
- Genetics, Vaccines and Infections Research Group (GENVIP), Instituto de Investigación Sanitaria de Santiago, Universidade de Santiago de Compostela, Santiago de Compostela, Galicia, Spain,Unidade de Xenética, Instituto de Ciencias Forenses, Facultade de Medicina, Universidade de Santiago de Compostela, and GenPoB Research Group, Instituto de Investigación Sanitaria (IDIS), Hospital Clínico Universitario de Santiago (SERGAS), Santiago de Compostela, Galicia, Spain,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBER-ES), Madrid, Spain
| | - Alba Camino-Mera
- Genetics, Vaccines and Infections Research Group (GENVIP), Instituto de Investigación Sanitaria de Santiago, Universidade de Santiago de Compostela, Santiago de Compostela, Galicia, Spain,Unidade de Xenética, Instituto de Ciencias Forenses, Facultade de Medicina, Universidade de Santiago de Compostela, and GenPoB Research Group, Instituto de Investigación Sanitaria (IDIS), Hospital Clínico Universitario de Santiago (SERGAS), Santiago de Compostela, Galicia, Spain,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBER-ES), Madrid, Spain
| | - Thomas Hinault
- Normandie Université, UNICAEN, PSL Université Paris, EPHE, Inserm, U1077, CHU de Caen, Centre Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
| | - Federico Martinón-Torres
- Genetics, Vaccines and Infections Research Group (GENVIP), Instituto de Investigación Sanitaria de Santiago, Universidade de Santiago de Compostela, Santiago de Compostela, Galicia, Spain,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBER-ES), Madrid, Spain,Translational Pediatrics and Infectious Diseases, Department of Pediatrics, Hospital Clínico Universitario de Santiago de Compostela, Santiago de Compostela, Galicia, Spain
| | - Antonio Salas
- Genetics, Vaccines and Infections Research Group (GENVIP), Instituto de Investigación Sanitaria de Santiago, Universidade de Santiago de Compostela, Santiago de Compostela, Galicia, Spain,Unidade de Xenética, Instituto de Ciencias Forenses, Facultade de Medicina, Universidade de Santiago de Compostela, and GenPoB Research Group, Instituto de Investigación Sanitaria (IDIS), Hospital Clínico Universitario de Santiago (SERGAS), Santiago de Compostela, Galicia, Spain,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBER-ES), Madrid, Spain,*Correspondence: Antonio Salas, ✉
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Wei Y, Shen H, Gao C, Du Y, Zhao Y, Wang Y, Zhou S, Li J, Zhao B, Wu D. Electrochemical detection mechanism of estrogen effect induced by cadmium: The regulation of purine metabolism by the estrogen effect of cadmium. CHEMOSPHERE 2023; 311:136970. [PMID: 36283430 DOI: 10.1016/j.chemosphere.2022.136970] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 09/20/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
Some heavy metals in the environment may have estrogen-like activity, which probably lead to major diseases such as breast cancer. It is of great importance to establish new methods to evaluate the estrogen effect of heavy metals from multiple angles due to the complex mechanism of estrogen effect. In this paper, using MCF-7 cells as model, the electrochemical detection mechanism of the estrogen effect of heavy metal cadmium (Cd) was studied. The two electrochemical signals of MCF-7 cells derived from uric acid (0.30 V) and the mixture of guanine and xanthine (0.68 V) increased in a time and dose-dependent manner when MCF-7 cells induced by Cd, reaching the maximum at 96 h and 10-9 mol L-1. Further studies found that three purine metabolism pathways about de novo synthesis, salvage synthesis and decomposition metabolism were activated by the estrogen effect of Cd. The expression of PRPP amidotransferase in purine de novo synthesis pathway and HPRT in purine salvage synthesis pathway up-regulated, especially HPRT, which promoted cell proliferation together. Nevertheless, the expression of GDA and ADA, the key enzymes in purine decomposition metabolism pathway, up-regulated in a time and dose-dependent manner, which had same tendency with that of ERα, thereby increased the content of intracellular hypoxanthine, guanine, xanthine and uric acid, and enhanced electrochemical signals.
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Affiliation(s)
- Ying Wei
- College of Pharmacy, Jiamusi University, Jiamusi, Heilongjiang, 154007, PR China
| | - Hongkuan Shen
- Jiamusi Inspection and Testing Center, Jiamusi, Heilongjiang, 154007, PR China
| | - Changsheng Gao
- College of Pharmacy, Jiamusi University, Jiamusi, Heilongjiang, 154007, PR China
| | - Yuan Du
- Heilongjiang Provincial Key Laboratory of New Drug Development and Pharmacotoxicological Evaluation, Jiamusi, Heilongjiang, 154007, PR China
| | - Yanli Zhao
- College of Pharmacy, Jiamusi University, Jiamusi, Heilongjiang, 154007, PR China; Heilongjiang Provincial Key Laboratory of New Drug Development and Pharmacotoxicological Evaluation, Jiamusi, Heilongjiang, 154007, PR China
| | - Yuhang Wang
- College of Pharmacy, Jiamusi University, Jiamusi, Heilongjiang, 154007, PR China
| | - Shi Zhou
- College of Pharmacy, Jiamusi University, Jiamusi, Heilongjiang, 154007, PR China
| | - Jinlian Li
- College of Pharmacy, Jiamusi University, Jiamusi, Heilongjiang, 154007, PR China; Heilongjiang Provincial Key Laboratory of New Drug Development and Pharmacotoxicological Evaluation, Jiamusi, Heilongjiang, 154007, PR China.
| | - Baojiang Zhao
- Heilongjiang Provincial Key Laboratory of New Drug Development and Pharmacotoxicological Evaluation, Jiamusi, Heilongjiang, 154007, PR China.
| | - Dongmei Wu
- College of Pharmacy, Jiamusi University, Jiamusi, Heilongjiang, 154007, PR China; Heilongjiang Provincial Key Laboratory of New Drug Development and Pharmacotoxicological Evaluation, Jiamusi, Heilongjiang, 154007, PR China.
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8
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Qu X, Ma J, Gao H, Zhang Y, Zhai J, Gong J, Song Y, Hu T. Integration of metabolomics and proteomics analysis to explore the mechanism of neurotoxicity induced by receipt of isoniazid and rifampicin in mice. Neurotoxicology 2023; 94:24-34. [PMID: 36347327 DOI: 10.1016/j.neuro.2022.11.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 11/03/2022] [Accepted: 11/04/2022] [Indexed: 11/06/2022]
Abstract
Isoniazid (INH) and rifampicin (RIF) are co-administered in tuberculosis treatment but can cause neurotoxicity, and the mechanism is not known. To explore this mechanism, we employed an integrated approach using metabolomics analysis (MA) and proteomics analysis (PA). Male mice were divided into three groups and administered vehicle (control group), or co-administered INH (120 mg/kg) and RIF (240 mg/kg), for 7 or 14 days. Mice brains were collected for mass spectrometry-based PA and MA plus lipidomics analysis. Measurement of brain levels of malondialdehyde and superoxide dismutase revealed time-dependent brain injury after exposure to INH+RIF for 7 and 14 days. Also, 422 proteins, 35 metabolites, and 21 lipids were dysregulated and identified. MA demonstrated "purine metabolism," "phenylalanine, tyrosine and tryptophan biosynthesis," "biosynthesis of unsaturated fatty acids," "phenylalanine metabolism," and "arginine biosynthesis" to be disturbed significantly. PA demonstrated pathways such as "lipids," "amino acids," and "energy metabolism" to be disrupted. Peroxisome proliferator-activated receptor (PPAR) pathways were changed in energy metabolism, which led to the neurotoxicity induced by INH+RIF. Immunohistochemical analyses of PPARs in mice brains verified that PPAR-α and -γ expression was downregulated. PPAR-α and -γ activation might be a key target for alleviating INH+RIF-induced neurotoxicity.
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Affiliation(s)
- Xiaoyu Qu
- Department of Pharmacy, The First Hospital of Jilin University, 130021 Changchun, China
| | - Jie Ma
- Department of Pharmacy, The First Hospital of Jilin University, 130021 Changchun, China
| | - Huan Gao
- Department of Pharmacy, The First Hospital of Jilin University, 130021 Changchun, China
| | - Yueming Zhang
- Department of Pharmacy, The First Hospital of Jilin University, 130021 Changchun, China
| | - Jinghui Zhai
- Department of Pharmacy, The First Hospital of Jilin University, 130021 Changchun, China
| | - Jiawei Gong
- Department of Pharmacy, The First Hospital of Jilin University, 130021 Changchun, China
| | - Yanqing Song
- Department of Pharmacy, The First Hospital of Jilin University, 130021 Changchun, China.
| | - Tingting Hu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 130021 Changchun, China.
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9
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Zeng Z, Li M, Jiang Z, Lan Y, Chen L, Chen Y, Li H, Hui J, Zhang L, Hu X, Xia H. Integrated transcriptomic and metabolomic profiling reveals dysregulation of purine metabolism during the acute phase of spinal cord injury in rats. Front Neurosci 2022; 16:1066528. [PMID: 36507345 PMCID: PMC9727392 DOI: 10.3389/fnins.2022.1066528] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 11/01/2022] [Indexed: 11/24/2022] Open
Abstract
Introduction Spinal cord injury (SCI) results in drastic dysregulation of microenvironmental metabolism during the acute phase, which greatly affects neural recovery. A better insight into the potential molecular pathways of metabolic dysregulation by multi-omics analysis could help to reveal targets that promote nerve repair and regeneration in the future. Materials and methods We established the SCI model and rats were randomly divided into two groups: the acute-phase SCI (ASCI) group (n = 14, 3 days post-SCI) and the sham group with day-matched periods (n = 14, without SCI). In each group, rats were sacrificed at 3 days post-surgery for histology study (n = 3), metabolome sequencing (n = 5), transcriptome sequencing (n = 3), and quantitative real-time polymerase chain reaction (n = 3). The motor function of rats was evaluated by double-blind Basso, Beattie, and Bresnahan (BBB) Locomotor Scores at 0, 1, 2, 3 days post-SCI in an open field area. Then the transcriptomic and metabolomic data were integrated in SCI model of rat to reveal the underlying molecular pathways of microenvironmental metabolic dysregulation. Results The histology of the microenvironment was significantly altered in ASCI and the locomotor function was significantly reduced in rats. Metabolomics analysis showed that 360 metabolites were highly altered during the acute phase of SCI, of which 310 were up-regulated and 50 were down-regulated, and bioinformatics analysis revealed that these differential metabolites were mainly enriched in arginine and proline metabolism, D-glutamine and D-glutamate metabolism, purine metabolism, biosynthesis of unsaturated fatty acids. Transcriptomics results showed that 5,963 genes were clearly altered, of which 2,848 genes were up-regulated and 3,115 genes were down-regulated, and these differentially expressed genes were mainly involved in response to stimulus, metabolic process, immune system process. Surprisingly, the Integrative analysis revealed significant dysregulation of purine metabolism at both transcriptome and metabolome levels in the acute phase of SCI, with 48 differential genes and 16 differential metabolites involved. Further analysis indicated that dysregulation of purine metabolism could seriously affect the energy metabolism of the injured microenvironment and increase oxidative stress as well as other responses detrimental to nerve repair and regeneration. Discussion On the whole, we have for the first time combined transcriptomics and metabolomics to systematically analyze the potential molecular pathways of metabolic dysregulation in the acute phase of SCI, which will contribute to broaden our understanding of the sophisticated molecular mechanisms of SCI, in parallel with serving as a foundation for future studies of neural repair and regeneration after SCI.
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Affiliation(s)
- Zhong Zeng
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China,Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, General Hospital of Ningxia Medical University, Yinchuan, China,School of Clinical Medicine, Ningxia Medical University, Yinchuan, China,Ningxia Key Laboratory of Craniocerebral Diseases, Ningxia Medical University, Yinchuan, China
| | - Mei Li
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China,Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, General Hospital of Ningxia Medical University, Yinchuan, China,School of Clinical Medicine, Ningxia Medical University, Yinchuan, China,Ningxia Key Laboratory of Craniocerebral Diseases, Ningxia Medical University, Yinchuan, China
| | - Zhanfeng Jiang
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China,Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, General Hospital of Ningxia Medical University, Yinchuan, China,School of Clinical Medicine, Ningxia Medical University, Yinchuan, China
| | - Yuanxiang Lan
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China,Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, General Hospital of Ningxia Medical University, Yinchuan, China,School of Clinical Medicine, Ningxia Medical University, Yinchuan, China
| | - Lei Chen
- Department of Neurosurgery, The First People’s Hospital of Shizuishan, Shizuishan, China
| | - Yanjun Chen
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China,Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, General Hospital of Ningxia Medical University, Yinchuan, China,School of Clinical Medicine, Ningxia Medical University, Yinchuan, China
| | - Hailiang Li
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, China,Ningxia Key Laboratory of Craniocerebral Diseases, Ningxia Medical University, Yinchuan, China
| | - Jianwen Hui
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China,Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, General Hospital of Ningxia Medical University, Yinchuan, China,School of Clinical Medicine, Ningxia Medical University, Yinchuan, China
| | - Lijian Zhang
- Department of Neurosurgery, Affiliated Hospital of Hebei University, Hebei University, Baoding, China
| | - Xvlei Hu
- Department of Neurosurgery, Shanxi Provincial People’s Hospital, Taiyuan, China
| | - Hechun Xia
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China,Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, General Hospital of Ningxia Medical University, Yinchuan, China,*Correspondence: Hechun Xia,
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10
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Isik M, Eylem CC, Haciefendioglu T, Yildirim E, Sari B, Nemutlu E, Emregul E, Okesola BO, Derkus B. Mechanically robust hybrid hydrogels of photo-crosslinkable gelatin and laminin-mimetic peptide amphiphiles for neural induction. Biomater Sci 2021; 9:8270-8284. [PMID: 34766605 DOI: 10.1039/d1bm01350e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Self-assembling bio-instructive materials that can provide a biomimetic tissue microenvironment with the capability to regulate cellular behaviors represent an attractive platform in regenerative medicine. Herein, we develop a hybrid neuro-instructive hydrogel that combines the properties of a photo-crosslinkable gelatin methacrylate (GelMA) and self-assembling peptide amphiphiles (PAs) bearing a laminin-derived neuro-inductive epitope (PA-GSR). Electrostatic interaction and ultraviolet light crosslinking mechanisms were combined to create dual-crosslinked hybrid hydrogels with tunable stiffness. Spectroscopic, microscopic and theoretical techniques show that the cationic PA-GSR(+) electrostatically co-assembles with the negatively charged GelMA to create weak hydrogels with hierarchically ordered microstructures, which were further photo-crosslinked to create mechanically robust hydrogels. Dynamic oscillatory rheology and micromechanical testing show that photo-crosslinking of the co-assembled GelMA and PA-GSR(+) hydrogel results in robust hydrogels displaying improved stiffness. Gene expression analysis was used to show that GelMA/PA-GSR(+) hydrogels can induce human mesenchymal stem cells (hMSCs) into neural-lineage cells and supports neural-lineage specification of neuroblast-like cells (SH-SY5Y) in a growth-factor-free manner. Also, metabolomics analysis suggests that the hydrogel alters the metabolite profiles in the cells by affecting multiple molecular pathways. This work highlights a new approach for the design of PA-based hybrid hydrogels with robust mechanical properties and biological functionalities for nerve tissue regeneration.
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Affiliation(s)
- Melis Isik
- Department of Chemistry, Faculty of Science, Ankara University, 06560 Ankara, Turkey.
| | - Cemil Can Eylem
- Analytical Chemistry Division, Faculty of Pharmacy, Hacettepe University, 06230 Ankara, Turkey
| | | | - Erol Yildirim
- Chemistry Department, Middle East Technical University, 06800 Ankara, Turkey.,Department of Polymer Science and Technology, Middle East Technical University, 06800 Ankara, Turkey.,Department of Micro and Nanotechnology, Middle East Technical University, 06800 Ankara, Turkey
| | - Buse Sari
- Department of Chemistry, Faculty of Science, Ankara University, 06560 Ankara, Turkey. .,Stem Cell Research Lab, Department of Chemistry, Faculty of Science, Ankara University, 06560 Ankara, Turkey
| | - Emirhan Nemutlu
- Analytical Chemistry Division, Faculty of Pharmacy, Hacettepe University, 06230 Ankara, Turkey.,Bioanalytic and Omics Laboratory, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Emel Emregul
- Department of Chemistry, Faculty of Science, Ankara University, 06560 Ankara, Turkey.
| | - Babatunde O Okesola
- Institute of Bioengineering, Queen Mary University of London, London, E1 4NS, UK. .,School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
| | - Burak Derkus
- Department of Chemistry, Faculty of Science, Ankara University, 06560 Ankara, Turkey. .,Stem Cell Research Lab, Department of Chemistry, Faculty of Science, Ankara University, 06560 Ankara, Turkey
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11
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Mazzarino RC, Baresova V, Zikánová M, Duval N, Wilkinson TG, Patterson D, Vacano GN. Transcriptome and metabolome analysis of crGART, a novel cell model of de novo purine synthesis deficiency: Alterations in CD36 expression and activity. PLoS One 2021; 16:e0247227. [PMID: 34283828 PMCID: PMC8291708 DOI: 10.1371/journal.pone.0247227] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 06/24/2021] [Indexed: 11/18/2022] Open
Abstract
In humans, GART [phosphoribosylglycinamide formyltransferase (EC 2.1.2.2) / phosphoribosylglycinamide synthetase (EC 6.3.4.13) / phosphoribosylaminoimidazole synthetase (EC 6.3.3.1)] is a trifunctional protein which catalyzes the second, third, and fifth reactions of the ten step de novo purine synthesis (DNPS) pathway. The second step of DNPS is conversion of phosphoribosylamine (5-PRA) to glycineamide ribonucleotide (GAR). 5-PRA is extremely unstable under physiological conditions and is unlikely to accumulate in the absence of GART activity. Recently, a HeLa cell line null mutant for GART was constructed via CRISPR-Cas9 mutagenesis. This cell line, crGART, is an important cellular model of DNPS inactivation that does not accumulate DNPS pathway intermediates. In the current study, we characterized the crGART versus HeLa transcriptomes in purine-supplemented and purine-depleted growth conditions. We observed multiple transcriptome changes and discuss pathways and ontologies particularly relevant to Alzheimer disease and Down syndrome. We selected the Cluster of Differentiation (CD36) gene for initial analysis based on its elevated expression in crGART versus HeLa as well as its high basal expression, high log2 value, and minimal P-value.
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Affiliation(s)
- Randall C. Mazzarino
- Knoebel Institute for Healthy Aging, University of Denver, Denver, Colorado, United States of America
- Eleanor Roosevelt Institute, University of Denver, Denver, Colorado, United States of America
- Department of Biological Sciences, University of Denver, Denver, Colorado, United States of America
- Molecular and Cellular Biophysics Program, University of Denver, Denver, Colorado, United States of America
| | - Veronika Baresova
- Research Unit for Rare Diseases, Department of Pediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Marie Zikánová
- Research Unit for Rare Diseases, Department of Pediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Nathan Duval
- Knoebel Institute for Healthy Aging, University of Denver, Denver, Colorado, United States of America
- Eleanor Roosevelt Institute, University of Denver, Denver, Colorado, United States of America
- Department of Biological Sciences, University of Denver, Denver, Colorado, United States of America
| | - Terry G. Wilkinson
- Knoebel Institute for Healthy Aging, University of Denver, Denver, Colorado, United States of America
- Eleanor Roosevelt Institute, University of Denver, Denver, Colorado, United States of America
| | - David Patterson
- Knoebel Institute for Healthy Aging, University of Denver, Denver, Colorado, United States of America
- Eleanor Roosevelt Institute, University of Denver, Denver, Colorado, United States of America
- Department of Biological Sciences, University of Denver, Denver, Colorado, United States of America
| | - Guido N. Vacano
- Knoebel Institute for Healthy Aging, University of Denver, Denver, Colorado, United States of America
- Eleanor Roosevelt Institute, University of Denver, Denver, Colorado, United States of America
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12
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Sutcliffe DJ, Dinasarapu AR, Visser JE, Hoed JD, Seifar F, Joshi P, Ceballos-Picot I, Sardar T, Hess EJ, Sun YV, Wen Z, Zwick ME, Jinnah HA. Induced pluripotent stem cells from subjects with Lesch-Nyhan disease. Sci Rep 2021; 11:8523. [PMID: 33875724 PMCID: PMC8055678 DOI: 10.1038/s41598-021-87955-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 03/24/2021] [Indexed: 12/18/2022] Open
Abstract
Lesch-Nyhan disease (LND) is an inherited disorder caused by pathogenic variants in the HPRT1 gene, which encodes the purine recycling enzyme hypoxanthine-guanine phosphoribosyltransferase (HGprt). We generated 6 induced pluripotent stem cell (iPSC) lines from 3 individuals with LND, along with 6 control lines from 3 normal individuals. All 12 lines had the characteristics of pluripotent stem cells, as assessed by immunostaining for pluripotency markers, expression of pluripotency genes, and differentiation into the 3 primary germ cell layers. Gene expression profiling with RNAseq demonstrated significant heterogeneity among the lines. Despite this heterogeneity, several anticipated abnormalities were readily detectable across all LND lines, including reduced HPRT1 mRNA. Several unexpected abnormalities were also consistently detectable across the LND lines, including decreases in FAR2P1 and increases in RNF39. Shotgun proteomics also demonstrated several expected abnormalities in the LND lines, such as absence of HGprt protein. The proteomics study also revealed several unexpected abnormalities across the LND lines, including increases in GNAO1 decreases in NSE4A. There was a good but partial correlation between abnormalities revealed by the RNAseq and proteomics methods. Finally, functional studies demonstrated LND lines had no HGprt enzyme activity and resistance to the toxic pro-drug 6-thioguanine. Intracellular purines in the LND lines were normal, but they did not recycle hypoxanthine. These cells provide a novel resource to reveal insights into the relevance of heterogeneity among iPSC lines and applications for modeling LND.
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Affiliation(s)
- Diane J Sutcliffe
- Department of Neurology, Emory University School of Medicine, 101 Woodruff Circle, 6305 Woodruff Memorial Building, Atlanta, GA, 30322, USA
| | - Ashok R Dinasarapu
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Jasper E Visser
- Department of Neurology, Cognition and Behavior, Donders Institute for Brain, Radboud University Medical Center, Nijmegen, The Netherlands
- Department of Neurology, Amphia Hospital, Breda, The Netherlands
| | - Joery den Hoed
- Department of Neurology, Emory University School of Medicine, 101 Woodruff Circle, 6305 Woodruff Memorial Building, Atlanta, GA, 30322, USA
| | - Fatemeh Seifar
- Department of Neurology, Emory University School of Medicine, 101 Woodruff Circle, 6305 Woodruff Memorial Building, Atlanta, GA, 30322, USA
- Neurosciences Graduate Program, Graduate Division of Biological and Biomedical Sciences, Laney Graduate School, Emory University, Atlanta, 30322, USA
| | - Piyush Joshi
- Department of Neurology, Emory University School of Medicine, 101 Woodruff Circle, 6305 Woodruff Memorial Building, Atlanta, GA, 30322, USA
| | - Irene Ceballos-Picot
- Laboratoire de Biochimie Métabolomique Et Protéomique, Hôpital Universitaire Necker, Paris, France
| | - Tejas Sardar
- Department of Neurology, Emory University School of Medicine, 101 Woodruff Circle, 6305 Woodruff Memorial Building, Atlanta, GA, 30322, USA
| | - Ellen J Hess
- Department of Neurology, Emory University School of Medicine, 101 Woodruff Circle, 6305 Woodruff Memorial Building, Atlanta, GA, 30322, USA
- Neurosciences Graduate Program, Graduate Division of Biological and Biomedical Sciences, Laney Graduate School, Emory University, Atlanta, 30322, USA
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Yan V Sun
- Department of Epidemiology, Emory University Rollins School of Public Health, Atlanta, GA. 30322, USA
| | - Zhexing Wen
- Department of Neurology, Emory University School of Medicine, 101 Woodruff Circle, 6305 Woodruff Memorial Building, Atlanta, GA, 30322, USA
- Department of Psychiatry & Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, 30322, USA
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Michael E Zwick
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, 30322, USA
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - H A Jinnah
- Department of Neurology, Emory University School of Medicine, 101 Woodruff Circle, 6305 Woodruff Memorial Building, Atlanta, GA, 30322, USA.
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, 30322, USA.
- Neurosciences Graduate Program, Graduate Division of Biological and Biomedical Sciences, Laney Graduate School, Emory University, Atlanta, 30322, USA.
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, 30322, USA.
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13
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Yu J, Meng F, He F, Chen F, Bao W, Yu Y, Zhou J, Gao J, Li J, Yao Y, Ge WP, Luo B. Metabolic Abnormalities in Patients with Chronic Disorders of Consciousness. Aging Dis 2021; 12:386-403. [PMID: 33815872 PMCID: PMC7990357 DOI: 10.14336/ad.2020.0812] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 08/12/2020] [Indexed: 12/13/2022] Open
Abstract
The vegetative state (VS) and minimally conscious state (MCS) are two major types of chronic disorders of consciousness (DoC). The assessment of these two consciousness states generally relies on the Coma Recovery Scale-Revised (CRS-R) score, but a high misdiagnosis rate limits the generalized use of this score. To identify metabolites in human plasma that can accurately distinguish VS from MCS patients, comprehensive plasma metabolic profiles were obtained with targeted metabolomics analysis and untargeted and targeted lipidomics analysis. Univariate and multivariate analyses were used to assess the significance of differences. Compared with healthy controls (HCs), the DoC groups, Emerged from Minimally Conscious State (EMCS) group and Alzheimer’s disease (AD) group had significantly different metabolic profiles. Purine metabolism pathway differed the most between the DoC (MCS and VS) and HC groups. In this pathway, adenosine, ADP, and AMP, which are the derived products of ATP degradation, were decreased in the MCS and VS groups compared to healthy controls. More importantly, we identified certain lipids for which the levels were enriched in the VS or MCS groups. Specifically, phosphatidylcholine, (38:5)-H (PC(38:5)-H), and arachidonic acid (AA) differed substantially between the VS and MCS groups and may be used to distinguish these two groups of patients. Together, our findings suggest that metabolic profiling is significantly altered in patients with chronic DoC.
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Affiliation(s)
- Jie Yu
- 1Department of Neurology and Brain Medical Center, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Fanxia Meng
- 1Department of Neurology and Brain Medical Center, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Fangping He
- 1Department of Neurology and Brain Medical Center, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Fei Chen
- 2Children's Research Institute, Department of Neuroscience, University of Texas, Southwestern Medical Center, Dallas, TX 75390, USA
| | - Wangxiao Bao
- 1Department of Neurology and Brain Medical Center, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Yamei Yu
- 1Department of Neurology and Brain Medical Center, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Jintao Zhou
- 1Department of Neurology and Brain Medical Center, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Jian Gao
- 3Department of Rehabilitation, Hangzhou Hospital of Zhejiang Armed Police Corps, Hangzhou 310051, China
| | - Jingqi Li
- 3Department of Rehabilitation, Hangzhou Hospital of Zhejiang Armed Police Corps, Hangzhou 310051, China
| | - Yao Yao
- 4Department of Pharmaceutical and Biomedical Sciences, University of Georgia, GA 30602, USA
| | - Woo-Ping Ge
- 5Chinese Institute for Brain Research, Beijing 102206, China
| | - Benyan Luo
- 1Department of Neurology and Brain Medical Center, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
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14
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Yamada S, Sato A, Sakakibara SI. Nwd1 Regulates Neuronal Differentiation and Migration through Purinosome Formation in the Developing Cerebral Cortex. iScience 2020; 23:101058. [PMID: 32344379 PMCID: PMC7186558 DOI: 10.1016/j.isci.2020.101058] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 03/09/2020] [Accepted: 04/08/2020] [Indexed: 12/17/2022] Open
Abstract
Engagement of neural stem/progenitor cells (NSPCs) into proper neuronal differentiation requires the spatiotemporally regulated generation of metabolites. Purines are essential building blocks for many signaling molecules. Enzymes that catalyze de novo purine synthesis are assembled as a huge multienzyme complex called “purinosome.” However, there is no evidence of the formation or physiological function of the purinosome in the brain. Here, we showed that a signal transduction ATPases with numerous domains (STAND) protein, NACHT and WD repeat domain-containing 1 (Nwd1), interacted with Paics, a purine-synthesizing enzyme, to regulate purinosome assembly in NSPCs. Altered Nwd1 expression affected purinosome formation and induced the mitotic exit and premature differentiation of NSPCs, repressing neuronal migration and periventricular heterotopia. Overexpression/knockdown of Paics or Fgams, other purinosome enzymes, in the developing brain resulted in a phenocopy of Nwd1 defects. These findings indicate that strict regulation of purinosome assembly/disassembly is crucial for maintaining NSPCs and corticogenesis. STAND protein Nwd1 interacts with Paics to regulate the purinosome formation Dysregulated expression of Nwd1 induced the premature differentiation of NSPCs Nwd1 KD repressed the neuronal migration, causing the periventricular heterotopia Tightly regulated assembly of purinosome components is crucial for corticogenesis
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Affiliation(s)
- Seiya Yamada
- Laboratory for Molecular Neurobiology, Graduate School of Human Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa, Saitama 359-1192, Japan
| | - Ayaka Sato
- Laboratory for Molecular Neurobiology, Graduate School of Human Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa, Saitama 359-1192, Japan
| | - Shin-Ichi Sakakibara
- Laboratory for Molecular Neurobiology, Graduate School of Human Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa, Saitama 359-1192, Japan.
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15
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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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16
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Ren X, Geng N, Zhang H, Wang F, Gong Y, Song X, Luo Y, Zhang B, Chen J. Comparing the disrupting effects of short-, medium- and long-chain chlorinated Paraffins on cell viability and metabolism. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 685:297-307. [PMID: 31176216 DOI: 10.1016/j.scitotenv.2019.05.388] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/23/2019] [Accepted: 05/25/2019] [Indexed: 05/22/2023]
Abstract
With the phasing out of short-chain chlorinated paraffins (SCCPs), the production and emissions of medium- and long-chain chlorinated paraffins (MCCPs and LCCPs) are expected to increase. In this study, cell viability assay and pseudotargeted metabolomics approach were adopted to define and compare the toxic effects induced by SCCPs, MCCPs and LCCPs. The dose response curves indicated that three CP mixtures with comparable chlorine contents produced similar inhibitory effects on cell viability. At exposure concentration of 100 μg/L, three CP mixtures all induced significant increases in levels of reactive oxygen species (ROS) and malondialdehyde (MDA) and a significant reduction in level of adenosine triphosphate production (ATP), and produced similar impact intensities on overall metabolism. A stronger perturbation in phospholipid and fatty acid metabolism was observed in all CP exposure groups. In comparison with SCCPs and MCCPs, LCCPs produced a stronger suppressive effect on amino acid transport across cell membrane and induced an opposite effect on purine metabolism. Furthermore, the toxicity mechanism and possible health risks of the three types of CPs were discussed. MCCPs shared the most similar cytotoxicity and metabolic perturbation with SCCPs, suggesting that there should be concern about using MCCPs as alternatives to SCCPs.
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Affiliation(s)
- Xiaoqian Ren
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Ningbo Geng
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, PR China
| | - Haijun Zhang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, PR China.
| | - Feidi Wang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Institute of Quality and Standard for Agro-Products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Yufeng Gong
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, PR China
| | - Xiaoyao Song
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, PR China
| | - Yun Luo
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Baoqin Zhang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, PR China
| | - Jiping Chen
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, PR China
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Fu J, Wang X, Wang T, Zhang J, Guo S, Wu S, Zhu F. Covalent Functionalization of Graphene Oxide with a Presynthesized Metal-Organic Framework Enables a Highly Stable Electrochemical Sensing. ACS APPLIED MATERIALS & INTERFACES 2019; 11:33238-33244. [PMID: 31432665 DOI: 10.1021/acsami.9b10531] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
This paper reports the covalent functionalization of graphene oxide (GO) by a presynthesized metal-organic framework NH2-MIL-101(Fe) via ultrasonication of the two components. The formation of Fe-O covalent bonding in the NH2-MIL-101(Fe)-GO nanohybrid is clearly evidenced, and the covalent bonding still remains after electrochemical reduction. The morphology and structure of the nanohybrid are characterized via scanning electron microscopy, transmission electron microscopy, UV-vis spectroscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction, and Raman spectroscopy. The electrode based on electrochemically reduced NH2-MIL-101(Fe)-GO shows ultrastable and high-sensitive performance in simultaneous electrochemical sensing of three purine metabolic derivatives (uric acid, xanthine, and hypoxanthine); in particular, no signal fading is seen even after running for 120 times. The covalent bonding within the nanohybrid is obviously the key to maintain such a stability.
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Affiliation(s)
- Junhong Fu
- Gold Catalysis Research Center, State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , P. R. China
| | - Xiuyun Wang
- School of Chemistry , Dalian University of Technology , Dalian 116024 , P. R. China
| | - Tingting Wang
- School of Chemistry , Dalian University of Technology , Dalian 116024 , P. R. China
| | - Jie Zhang
- School of Chemistry , Dalian University of Technology , Dalian 116024 , P. R. China
| | - Song Guo
- Gold Catalysis Research Center, State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , P. R. China
| | - Shuo Wu
- School of Chemistry , Dalian University of Technology , Dalian 116024 , P. R. China
| | - Fenghui Zhu
- School of Chemistry , Dalian University of Technology , Dalian 116024 , P. R. China
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18
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Liu Y, Chen Y, Wang Y, Zhang X, Gao K, Chen S, Zhang X. microRNA Profiling in Glaucoma Eyes With Varying Degrees of Optic Neuropathy by Using Next-Generation Sequencing. Invest Ophthalmol Vis Sci 2019; 59:2955-2966. [PMID: 30025119 DOI: 10.1167/iovs.17-23599] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose To explore the microRNA (miRNA) profile and its putative role in glaucomatous optic neuropathy by using next-generation sequencing. Methods Aqueous humor (AH) samples were collected from 19 primary open-angle glaucoma (POAG) eyes and 17 cataract eyes before surgery. Next-generation sequencing was performed for RNA samples extracted from 18 AH samples, and the bioinformatics approach was applied for samples with adequate clean data output. The other 18 samples were used for quantitative PCR validation of sequencing results. Results In total, 12 (six POAG and six cataract controls) samples with sufficient clean data output after sequencing were used for further data analysis. Four hundred sixty-six and 480 mature miRNAs were detected in the POAG and cataract control groups, respectively. Among them, 164 miRNAs were detected in all POAG samples, and 96 miRNAs were detected in all cataract control samples. Furthermore, 88 miRNAs were identified as differently expressed between POAG and cataract control eyes. In addition, 16 miRNAs were differently expressed between POAG eyes with severe visual field damage and eyes with moderate visual field damage. This differential expression was predicted to regulate thiamine metabolism, purine metabolism, and transcriptional misregulation. Relative expression patterns of hsa-miR-184, hsa-miR-486-5p, and hsa-miR-93-5p were confirmed by quantitative PCR. Conclusions This study comprehensively demonstrated the miRNA expression profile in the AH of POAG eyes, especially the differential expression of miRNA in eyes with varying degrees of visual field damage, which, together with the underlying miRNA-related pathways, indicate new targets for the pathogenesis and progression of POAG.
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Affiliation(s)
- Yaoming Liu
- Zhongshan Ophthalmic Center, State Key Laboratory of Ophthalmology, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Yang Chen
- Zhongshan Ophthalmic Center, State Key Laboratory of Ophthalmology, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Yayi Wang
- Zhongshan Ophthalmic Center, State Key Laboratory of Ophthalmology, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Xinyu Zhang
- Zhongshan Ophthalmic Center, State Key Laboratory of Ophthalmology, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Kai Gao
- Zhongshan Ophthalmic Center, State Key Laboratory of Ophthalmology, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Shida Chen
- Zhongshan Ophthalmic Center, State Key Laboratory of Ophthalmology, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Xiulan Zhang
- Zhongshan Ophthalmic Center, State Key Laboratory of Ophthalmology, Sun Yat-sen University, Guangzhou, People's Republic of China
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19
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Ponesakki V, Paul S, Mani DKS, Rajendiran V, Kanniah P, Sivasubramaniam S. Annotation of nerve cord transcriptome in earthworm Eisenia fetida. GENOMICS DATA 2017; 14:91-105. [PMID: 29204349 PMCID: PMC5688751 DOI: 10.1016/j.gdata.2017.10.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 09/02/2017] [Accepted: 10/07/2017] [Indexed: 11/26/2022]
Abstract
In annelid worms, the nerve cord serves as a crucial organ to control the sensory and behavioral physiology. The inadequate genome resource of earthworms has prioritized the comprehensive analysis of their transcriptome dataset to monitor the genes express in the nerve cord and predict their role in the neurotransmission and sensory perception of the species. The present study focuses on identifying the potential transcripts and predicting their functional features by annotating the transcriptome dataset of nerve cord tissues prepared by Gong et al., 2010 from the earthworm Eisenia fetida. Totally 9762 transcripts were successfully annotated against the NCBI nr database using the BLASTX algorithm and among them 7680 transcripts were assigned to a total of 44,354 GO terms. The conserve domain analysis indicated the over representation of P-loop NTPase domain and calcium binding EF-hand domain. The COG functional annotation classified 5860 transcript sequences into 25 functional categories. Further, 4502 contig sequences were found to map with 124 KEGG pathways. The annotated contig dataset exhibited 22 crucial neuropeptides having considerable matches to the marine annelid Platynereis dumerilii, suggesting their possible role in neurotransmission and neuromodulation. In addition, 108 human stem cell marker homologs were identified including the crucial epigenetic regulators, transcriptional repressors and cell cycle regulators, which may contribute to the neuronal and segmental regeneration. The complete functional annotation of this nerve cord transcriptome can be further utilized to interpret genetic and molecular mechanisms associated with neuronal development, nervous system regeneration and nerve cord function.
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Affiliation(s)
| | | | | | | | | | - Sudhakar Sivasubramaniam
- Department of Biotechnology, Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu 627012, India
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20
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Detremmerie C, Vanhoutte PM, Leung S. Biased activity of soluble guanylyl cyclase: the Janus face of thymoquinone. Acta Pharm Sin B 2017; 7:401-408. [PMID: 28752025 PMCID: PMC5518662 DOI: 10.1016/j.apsb.2017.06.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 06/13/2017] [Indexed: 11/28/2022] Open
Abstract
The natural compound thymoquinone, extracted from Nigella sativa (black cumin), is widely used in humans for its anti-oxidative properties. Thymoquinone is known for its acute endothelium-independent vasodilator effects in isolated rat aortae and pulmonary arteries, depending in part on activation of adenosine triphosphate-sensitive potassium channels and inhibition of voltage-dependent calcium channels. The compound also improves endothelial dysfunction in mesenteric arteries of ageing rodents and in aortae of rabbits treated with pyrogallol, by inhibiting oxidative stress. Serendipitously, thymoquinone was found to augment contractions in isolated arteries with endothelium of both rats and pigs. The endothelium-dependent augmentation it causes counterintuitively depends on biased activation of soluble guanylyl cyclase (sGC) producing inosine 3',5'-cyclic monophosphate (cyclic IMP) rather than guanosine 3',5'-cyclic monophosphate. This phenomenon shows a striking mechanistic similarity to the hypoxic augmentation previously observed in porcine coronary arteries. The cyclic IMP preferentially produced under thymoquinone exposure causes an increased contractility of arterial smooth muscle by interfering with calcium homeostasis. This brief review summarizes the vascular pharmacology of thymoquinone, focussing in particular on how the compound causes endothelium-dependent contractions by biasing the activity of sGC.
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21
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Jorge-Finnigan A, Kleppe R, Jung-Kc K, Ying M, Marie M, Rios-Mondragon I, Salvatore MF, Saraste J, Martinez A. Phosphorylation at serine 31 targets tyrosine hydroxylase to vesicles for transport along microtubules. J Biol Chem 2017. [PMID: 28637871 DOI: 10.1074/jbc.m116.762344] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Tyrosine hydroxylase (TH) catalyzes the conversion of l-tyrosine into l-DOPA, which is the rate-limiting step in the synthesis of catecholamines, such as dopamine, in dopaminergergic neurons. Low dopamine levels and death of the dopaminergic neurons are hallmarks of Parkinson's disease (PD), where α-synuclein is also a key player. TH is highly regulated, notably by phosphorylation of several Ser/Thr residues in the N-terminal tail. However, the functional role of TH phosphorylation at the Ser-31 site (THSer(P)-31) remains unclear. Here, we report that THSer(P)-31 co-distributes with the Golgi complex and synaptic-like vesicles in rat and human dopaminergic cells. We also found that the TH microsomal fraction content decreases after inhibition of cyclin-dependent kinase 5 (Cdk5) and ERK1/2. The cellular distribution of an overexpressed phospho-null mutant, TH1-S31A, was restricted to the soma of neuroblastoma cells, with decreased association with the microsomal fraction, whereas a phospho-mimic mutant, TH1-S31E, was distributed throughout the soma and neurites. TH1-S31E associated with vesicular monoamine transporter 2 (VMAT2) and α-synuclein in neuroblastoma cells, and endogenous THSer(P)-31 was detected in VMAT2- and α-synuclein-immunoprecipitated mouse brain samples. Microtubule disruption or co-transfection with α-synuclein A53T, a PD-associated mutation, caused TH1-S31E accumulation in the cell soma. Our results indicate that Ser-31 phosphorylation may regulate TH subcellular localization by enabling its transport along microtubules, notably toward the projection terminals. These findings disclose a new mechanism of TH regulation by phosphorylation and reveal its interaction with key players in PD, opening up new research avenues for better understanding dopamine synthesis in physiological and pathological states.
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Affiliation(s)
- Ana Jorge-Finnigan
- From the Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5009 Bergen, Norway; K. G. Jebsen Centre for Neuropsychiatric Disorders, Jonas Lies vei 91, 5009 Bergen, Norway.
| | - Rune Kleppe
- From the Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5009 Bergen, Norway; K. G. Jebsen Centre for Neuropsychiatric Disorders, Jonas Lies vei 91, 5009 Bergen, Norway
| | - Kunwar Jung-Kc
- From the Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5009 Bergen, Norway; K. G. Jebsen Centre for Neuropsychiatric Disorders, Jonas Lies vei 91, 5009 Bergen, Norway
| | - Ming Ying
- From the Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5009 Bergen, Norway
| | - Michael Marie
- Department of Molecular Biology, University of Bergen, Thormøhlensgaten 55, 5020 Bergen Norway
| | - Ivan Rios-Mondragon
- From the Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5009 Bergen, Norway
| | - Michael F Salvatore
- Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, Texas 76107
| | - Jaakko Saraste
- From the Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5009 Bergen, Norway
| | - Aurora Martinez
- From the Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5009 Bergen, Norway; K. G. Jebsen Centre for Neuropsychiatric Disorders, Jonas Lies vei 91, 5009 Bergen, Norway
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22
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Almeida AS, Sonnewald U, Alves PM, Vieira HLA. Carbon monoxide improves neuronal differentiation and yield by increasing the functioning and number of mitochondria. J Neurochem 2016; 138:423-35. [PMID: 27128201 DOI: 10.1111/jnc.13653] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 04/11/2016] [Accepted: 04/19/2016] [Indexed: 12/28/2022]
Abstract
The process of cell differentiation goes hand-in-hand with metabolic adaptations, which are needed to provide energy and new metabolites. Carbon monoxide (CO) is an endogenous cytoprotective molecule able to inhibit cell death and improve mitochondrial metabolism. Neuronal differentiation processes were studied using the NT2 cell line, which is derived from human testicular embryonic teratocarcinoma and differentiates into post-mitotic neurons upon retinoic acid treatment. CO-releasing molecule A1 (CORM-A1) was used do deliver CO into cell culture. CO treatment improved NT2 neuronal differentiation and yield, since there were more neurons and the total cell number increased following the differentiation process. CO supplementation enhanced the mitochondrial population in post-mitotic neurons derived from NT2 cells, as indicated by an increase in mitochondrial DNA. CO treatment during neuronal differentiation increased the extent of the classical metabolic change that occurs during neuronal differentiation, from glycolytic to more oxidative metabolism, by decreasing the ratio of lactate production and glucose consumption. The expression of pyruvate and lactate dehydrogenases was higher, indicating an augmented oxidative metabolism. Moreover, these findings were corroborated by an increased percentage of (13) C incorporation from [U-(13) C]glucose into the tricarboxylic acid cycle metabolites malate and citrate, and also glutamate and aspartate in CO-treated cells. Finally, under low levels of oxygen (5%), which enhances glycolytic metabolism, some of the enhancing effects of CO on mitochondria were not observed. In conclusion, our data show that CO improves neuronal and mitochondrial yield by stimulation of tricarboxylic acid cycle activity, and thus oxidative metabolism of NT2 cells during the process of neuronal differentiation. The process of cell differentiation is coupled with metabolic adaptations. Carbon monoxide (CO) is an endogenous cytoprotective gasotransmitter able to prevent cell death and improve mitochondrial metabolism. Herein CO supplementation improved neuronal differentiation yield, by enhancing mitochondrial population and promoting the classical metabolic change that occurs during neuronal differentiation, from glycolytic to oxidative metabolism.
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Affiliation(s)
- Ana S Almeida
- CEDOC, Chronic Diseases Research Centre, NOVA Medical School/Faculdade de Ciência Médicas, Universidade Nova de Lisboa, Lisboa, Portugal.,Instituto de Tecnologia Química e Biológica (ITQB), Universidade Nova de Lisboa, Oeiras, Portugal.,Instituto de Biologia Experimental e Tecnológica (iBET), Oeiras, Portugal
| | - Ursula Sonnewald
- Department of Clinical Neuroscience, Norwegian University of Science and Technology (NTNU), Trondheim, Norway.,Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Paula M Alves
- CEDOC, Chronic Diseases Research Centre, NOVA Medical School/Faculdade de Ciência Médicas, Universidade Nova de Lisboa, Lisboa, Portugal.,Instituto de Tecnologia Química e Biológica (ITQB), Universidade Nova de Lisboa, Oeiras, Portugal
| | - Helena L A Vieira
- CEDOC, Chronic Diseases Research Centre, NOVA Medical School/Faculdade de Ciência Médicas, Universidade Nova de Lisboa, Lisboa, Portugal.,Instituto de Biologia Experimental e Tecnológica (iBET), Oeiras, Portugal
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23
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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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24
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Schretlen DJ, Callon W, Ward RE, Fu R, Ho T, Gordon B, Harris JC, Jinnah HA. Do clinical features of Lesch-Nyhan disease correlate more closely with hypoxanthine or guanine recycling? J Inherit Metab Dis 2016; 39:85-91. [PMID: 26067813 PMCID: PMC5903427 DOI: 10.1007/s10545-015-9869-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 05/13/2015] [Accepted: 05/26/2015] [Indexed: 01/16/2023]
Abstract
Lesch-Nyhan disease (LND) is a rare, X-linked recessive neurodevelopmental disorder caused by deficiency of hypoxanthine-guanine phosphoribosyltransferase (HGprt), an enzyme in the purine salvage pathway. HGprt has two functions; it recycles hypoxanthine and guanine. Which of these two functions is more relevant for pathogenesis is unclear because some evidence points to hypoxanthine recycling, but other evidence points to guanine recycling. In this study, we selectively assayed hypoxanthine (Hprt) and guanine (Gprt) recycling in skin fibroblasts from 17 persons with LND, 11 with an attenuated variant of the disease (LNV), and 19 age-, sex-, and race-matched healthy controls (HC). Activity levels of both enzymes differed across groups (p < 0.0001), but only Gprt distinguished patients with LND from those with LNV (p < 0.05). Gprt also showed slightly stronger correlations than Hprt with 13 of 14 measures of the clinical phenotype, including the severity of dystonia, cognitive impairment, and behavioral abnormalities. These findings suggest that loss of guanine recycling might be more closely linked to the LND/LNV phenotype than loss of hypoxanthine recycling.
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Affiliation(s)
- David J Schretlen
- Department of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Meyer 218, Baltimore, MD, 21287-7218, USA.
- Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Wynne Callon
- Department of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Meyer 218, Baltimore, MD, 21287-7218, USA
| | - Rebecca E Ward
- Department of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Meyer 218, Baltimore, MD, 21287-7218, USA
| | - Rong Fu
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| | - Tiffany Ho
- Department of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Meyer 218, Baltimore, MD, 21287-7218, USA
| | - Barry Gordon
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Cognitive Science, The Johns Hopkins University, Baltimore, MD, USA
| | - James C Harris
- Department of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Meyer 218, Baltimore, MD, 21287-7218, USA
| | - H A Jinnah
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
- Departments of Genetics and Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
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25
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Chen D, Zhang Z, Meng Y. Systematic Tracking of Disrupted Modules Identifies Altered Pathways Associated with Congenital Heart Defects in Down Syndrome. Med Sci Monit 2015; 21:3334-42. [PMID: 26524729 PMCID: PMC4635630 DOI: 10.12659/msm.896001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND This work aimed to identify altered pathways in congenital heart defects (CHD) in Down syndrome (DS) by systematically tracking the dysregulated modules of reweighted protein-protein interaction (PPI) networks. MATERIAL AND METHODS We performed systematic identification and comparison of modules across normal and disease conditions by integrating PPI and gene-expression data. Based on Pearson correlation coefficient (PCC), normal and disease PPI networks were inferred and reweighted. Then, modules in the PPI network were explored by clique-merging algorithm; altered modules were identified via maximum weight bipartite matching and ranked in non-increasing order. Finally, pathways enrichment analysis of genes in altered modules was carried out based on Database for Annotation, Visualization, and Integrated Discovery (DAVID) to study the biological pathways in CHD in DS. RESULTS Our analyses revealed that 348 altered modules were identified by comparing modules in normal and disease PPI networks. Pathway functional enrichment analysis of disrupted module genes showed that the 4 most significantly altered pathways were: ECM-receptor interaction, purine metabolism, focal adhesion, and dilated cardiomyopathy. CONCLUSIONS We successfully identified 4 altered pathways and we predicted that these pathways would be good indicators for CHD in DS.
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Affiliation(s)
- Denghong Chen
- Department of Obstetrics, Jining No. 1 People's Hospital, Jining, Shandong, China (mainland)
| | - Zhenhua Zhang
- Department of Children's Health Prevention, Jining No. 1 People's Hospital, Jining, Shandong, China (mainland)
| | - Yuxiu Meng
- Department of Neonatology, Jining No. 1 People's Hospital, Jining, Shandong, China (mainland)
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26
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Dammer EB, Göttle M, Duong DM, Hanfelt J, Seyfried NT, Jinnah HA. Consequences of impaired purine recycling on the proteome in a cellular model of Lesch-Nyhan disease. Mol Genet Metab 2015; 114:570-579. [PMID: 25769394 PMCID: PMC4390545 DOI: 10.1016/j.ymgme.2015.02.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 02/24/2015] [Accepted: 02/24/2015] [Indexed: 12/20/2022]
Abstract
The importance of specific pathways of purine metabolism for normal brain function is highlighted by several inherited disorders, such as Lesch-Nyhan disease (LND). In this disorder, deficiency of the purine recycling enzyme, hypoxanthine-guanine phosphoribosyltransferase (HGprt), causes severe neurological and behavioral abnormalities. Despite many years of research, the mechanisms linking the defect in purine recycling to the neurobehavioral abnormalities remain unclear. In the current studies, an unbiased approach to the identification of potential mechanisms was undertaken by examining changes in protein expression in a model of HGprt deficiency based on the dopaminergic rat PC6-3 line, before and after differentiation with nerve growth factor (NGF). Protein expression profiles of 5 mutant sublines carrying different mutations affecting HGprt enzyme activity were compared to the HGprt-competent parent line using the method of stable isotopic labeling by amino acids in cell culture (SILAC) followed by denaturing gel electrophoresis with liquid chromatography and tandem mass spectrometry (LC-MS/MS) of tryptic digests, and subsequent identification of affected biochemical pathways using the Database for Annotation, Visualization and Integrated Discovery (DAVID) functional annotation chart analysis. The results demonstrate that HGprt deficiency causes broad changes in protein expression that depend on whether the cells are differentiated or not. Several of the pathways identified reflect predictable consequences of defective purine recycling. Other pathways were not anticipated, disclosing previously unknown connections with purine metabolism and novel insights into the pathogenesis of LND.
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Affiliation(s)
- Eric B. Dammer
- Department of Biochemistry, Emory University, Atlanta, GA
| | - Martin Göttle
- Department of Neurology, Emory University, Atlanta, GA
| | - Duc M. Duong
- Department of Biochemistry, Emory University, Atlanta, GA
| | - John Hanfelt
- Department of Biostatistics and Bioinformatics, Emory University, Atlanta, GA
| | | | - H. A. Jinnah
- Department of Neurology, Emory University, Atlanta, GA
- Department of Human Genetics & Pediatrics, Emory University, Atlanta, GA
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Dauphinot L, Mockel L, Cahu J, Jinnah HA, Ledroit M, Potier MC, Ceballos-Picot I. Transcriptomic approach to Lesch-Nyhan disease. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2015; 33:208-17. [PMID: 24940671 DOI: 10.1080/15257770.2014.880477] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Lesch-Nyhan disease (LND) is an X-linked metabolic disease caused by various mutations in the gene HPRT1 encoding an enzyme of purine metabolism, hypoxanthine guanine phosphoribosyltransferase (HPRT). In its most severe form, LND patients suffer from overproduction of uric acid along with neurological or behavioural difficulties including self-injurious behaviours. To gain more insight into pathogenesis, we compared the transcriptome from human LND fibroblasts to normal human fibroblasts using a microarray with 60,000 probes corresponding to the entire human genome. Using stringent criteria, we identified 25 transcripts whose expression was significantly different between LND and control cells. These genes were confirmed by quantitative RT-PCR to be dysregulated in LND cells. Moreover, bioinformatic analysis of microarray data using gene ontology (GO) highlighted clusters of genes displaying biological processes most significantly affected in LND cells. These affected genes belonged to specific processes such as cell cycle and cell-division processes, metabolic and nucleic acid processes, demonstrating the specific nature of the changes and providing new insights into LND pathogenesis.
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Affiliation(s)
- Luce Dauphinot
- a CRICM, UPMC Hôpital de la Pitié-Salpêtrière , Paris , France
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28
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Rao JU, Engelke UFH, Sweep FCGJ, Pacak K, Kusters B, Goudswaard AG, Hermus ARMM, Mensenkamp AR, Eisenhofer G, Qin N, Richter S, Kunst HPM, Timmers HJLM, Wevers RA. Genotype-specific differences in the tumor metabolite profile of pheochromocytoma and paraganglioma using untargeted and targeted metabolomics. J Clin Endocrinol Metab 2015; 100:E214-22. [PMID: 25459911 PMCID: PMC5393507 DOI: 10.1210/jc.2014-2138] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT AND OBJECTIVE Pheochromocytomas and paragangliomas (PGLs) are neuroendocrine tumors of sympathetic or parasympathetic paraganglia. Nearly 40% of PGLs are caused by germline mutations. The present study investigated the effect of genetic alterations on metabolic networks in PGLs. DESIGN Homogenates of 32 sporadic PGLs and 48 PGLs from patients with mutations in SDHB, SDHD, SDHAF-2, VHL, RET, and NF-1 were subjected to proton ((1)H) nuclear magnetic resonance (NMR) spectroscopy at 500 MHz for untargeted and HPLC tandem mass spectrometry for targeted metabolite profiling. RESULTS (1)H NMR spectroscopy identified 28 metabolites in PGLs of which 12 showed genotype-specific differences. Part of these results published earlier reported low complex II activity (P < .0001) and low ATP/ADP/AMP content (P < .001) in SDH-related PGLs compared with sporadics and PGLs of other genotypes. Extending these results, low levels of N-acetylaspartic acid (NAA; P < .05) in SDH tumors and creatine (P < .05) in VHL tumors were observed compared with sporadics and other genotypes. Positive correlation was observed between NAA and ATP/ADP/AMP content (P < .001) and NAA and complex II activity (P < .0001) of PGLs. Targeted purine analysis in PGLs showed low adenine in cluster 1 compared with cluster 2 tumors (SDH P < .0001; VHL P < .05) whereas lower levels (P < .05) of guanosine and hypoxanthine were observed in RET tumors compared with SDH tumors. Principal component analysis (PCA) of metabolites could distinguish PGLs of different genotypes. CONCLUSIONS The present study gives a comprehensive picture of alterations in energy metabolism in SDH- and VHL-related PGLs and establishes the interrelationship of energy metabolism and amino acid and purine metabolism in PGLs.
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Affiliation(s)
- J U Rao
- Department of Laboratory Medicine, Laboratory of Genetic, Endocrine and Metabolic Diseases (J.U.R., U.F.H., F.C.G.J., A.G.G., R.A.W.), Department of Internal Medicine, Section of Endocrinology (J.U.R., H.J.L.M.T., A.R.M.M.H.), Radboud University Medical Centre, Nijmegen, The Netherlands; Eunice Kennedy Shriver National Institute of Child Health and Human Development (K.P.), National Institute of Health, Bethesda, Maryland 20892; Department of Pathology (B.K.), Department of Genetics (A.R.M.), Radboud University Medical Centre, Nijmegen, The Netherlands; Department of Medicine and Institute of Clinical Chemistry & Laboratory Medicine (G.E., N.Q., S.R.), University Hospital Carl Gustav Carus, Dresden, Germany; Department of Otolaryngology (H.P.M.K.), Radboud University Medical Centre, Nijmegen, The Netherlands; and Department of Pathology (B.K.), Maastricht University Medical Centre, Maastricht, The Netherlands
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29
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Fu R, Sutcliffe D, Zhao H, Huang X, Schretlen DJ, Benkovic S, Jinnah HA. Clinical severity in Lesch-Nyhan disease: the role of residual enzyme and compensatory pathways. Mol Genet Metab 2015; 114:55-61. [PMID: 25481104 PMCID: PMC4277921 DOI: 10.1016/j.ymgme.2014.11.001] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 11/01/2014] [Accepted: 11/01/2014] [Indexed: 01/01/2023]
Abstract
Mutations in the HPRT1 gene, which encodes the purine salvage enzyme hypoxanthine-guanine phosphoribosyltransferase (HGprt), cause Lesch-Nyhan disease (LND) and more mildly affected Lesch-Nyhan variants. Prior studies have suggested a strong correlation between residual hypoxanthine recycling activity and disease severity. However, the relevance of guanine recycling and compensatory changes in the de novo synthesis of purines has received little attention. In the current studies, fibroblast cultures were established for 21 healthy controls and 36 patients with a broad spectrum of disease severity related to HGprt deficiency. We assessed hypoxanthine recycling, guanine recycling, steady-state purine pools, and de novo purine synthesis. There was a strong correlation between disease severity and either hypoxanthine or guanine recycling. Intracellular purines were normal in the HGprt-deficient fibroblasts, but purine wasting was evident as increased purine metabolites excreted from the cells. The normal intracellular purines in the HGprt-deficient fibroblasts were likely due in part to a compensatory increase in purine synthesis, as demonstrated by a significant increase in purinosomes. However, the increase in purine synthesis did not appear to correlate with disease severity. These results refine our understanding of the potential sources of phenotypic heterogeneity in LND and its variants.
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Affiliation(s)
- Rong Fu
- Department of Neurology, Emory University, Atlanta, GA, USA
| | - Diane Sutcliffe
- Department of Neurology, Emory University, Atlanta, GA, USA; Department of Human Genetics, Emory University, Atlanta, GA, USA; Department of Pediatrics, Emory University, Atlanta, GA, USA
| | - Hong Zhao
- Department of Chemistry, Pennsylvania State University, University Park, PA, USA
| | - Xinyi Huang
- Department of Chemistry, Pennsylvania State University, University Park, PA, USA
| | - David J Schretlen
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Steve Benkovic
- Department of Chemistry, Pennsylvania State University, University Park, PA, USA
| | - H A Jinnah
- Department of Neurology, Emory University, Atlanta, GA, USA; Department of Human Genetics, Emory University, Atlanta, GA, USA; Department of Pediatrics, Emory University, Atlanta, GA, USA.
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30
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Seifert R, Schneider EH, Bähre H. From canonical to non-canonical cyclic nucleotides as second messengers: pharmacological implications. Pharmacol Ther 2014; 148:154-84. [PMID: 25527911 DOI: 10.1016/j.pharmthera.2014.12.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Accepted: 12/11/2014] [Indexed: 02/07/2023]
Abstract
This review summarizes our knowledge on the non-canonical cyclic nucleotides cCMP, cUMP, cIMP, cXMP and cTMP. We place the field into a historic context and discuss unresolved questions and future directions of research. We discuss the implications of non-canonical cyclic nucleotides for experimental and clinical pharmacology, focusing on bacterial infections, cardiovascular and neuropsychiatric disorders and reproduction medicine. The canonical cyclic purine nucleotides cAMP and cGMP fulfill the criteria of second messengers. (i) cAMP and cGMP are synthesized by specific generators, i.e. adenylyl and guanylyl cyclases, respectively. (ii) cAMP and cGMP activate specific effector proteins, e.g. protein kinases. (iii) cAMP and cGMP exert specific biological effects. (iv) The biological effects of cAMP and cGMP are terminated by phosphodiesterases and export. The effects of cAMP and cGMP are mimicked by (v) membrane-permeable cyclic nucleotide analogs and (vi) bacterial toxins. For decades, the existence and relevance of cCMP and cUMP have been controversial. Modern mass-spectrometric methods have unequivocally demonstrated the existence of cCMP and cUMP in mammalian cells. For both, cCMP and cUMP, the criteria for second messenger molecules are now fulfilled as well. There are specific patterns by which nucleotidyl cyclases generate cNMPs and how they are degraded and exported, resulting in unique cNMP signatures in biological systems. cNMP signaling systems, specifically at the level of soluble guanylyl cyclase, soluble adenylyl cyclase and ExoY from Pseudomonas aeruginosa are more promiscuous than previously appreciated. cUMP and cCMP are evolutionary new molecules, probably reflecting an adaption to signaling requirements in higher organisms.
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Affiliation(s)
- Roland Seifert
- Institute of Pharmacology, Hannover Medical School, D-30625 Hannover, Germany.
| | - Erich H Schneider
- Institute of Pharmacology, Hannover Medical School, D-30625 Hannover, Germany
| | - Heike Bähre
- Institute of Pharmacology, Hannover Medical School, D-30625 Hannover, Germany
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31
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Seifert R. Is cIMP a second messenger with functions opposite to those of cGMP? Naunyn Schmiedebergs Arch Pharmacol 2014; 387:897-9. [PMID: 25017018 DOI: 10.1007/s00210-014-1013-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 06/18/2014] [Indexed: 12/21/2022]
Affiliation(s)
- Roland Seifert
- Institute of Pharmacology, Hannover Medical School, Carl-Neuberg-Straße 1, 30625, Hannover, Germany,
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32
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Göttle M, Prudente CN, Fu R, Sutcliffe D, Pang H, Cooper D, Veledar E, Glass JD, Gearing M, Visser JE, Jinnah HA. Loss of dopamine phenotype among midbrain neurons in Lesch-Nyhan disease. Ann Neurol 2014; 76:95-107. [PMID: 24891139 PMCID: PMC4827147 DOI: 10.1002/ana.24191] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2014] [Revised: 05/26/2014] [Accepted: 05/26/2014] [Indexed: 01/07/2023]
Abstract
OBJECTIVE Lesch-Nyhan disease (LND) is caused by congenital deficiency of the purine recycling enzyme, hypoxanthine-guanine phosphoribosyltransferase (HGprt). Affected patients have a peculiar neurobehavioral syndrome linked with reductions of dopamine in the basal ganglia. The purpose of the current studies was to determine the anatomical basis for the reduced dopamine in human brain specimens collected at autopsy. METHODS Histopathological studies were conducted using autopsy tissue from 5 LND cases and 6 controls. Specific findings were replicated in brain tissue from an HGprt-deficient knockout mouse using immunoblots, and in a cell model of HGprt deficiency by flow-activated cell sorting (FACS). RESULTS Extensive histological studies of the LND brains revealed no signs suggestive of a degenerative process or other consistent abnormalities in any brain region. However, neurons of the substantia nigra from the LND cases showed reduced melanization and reduced immunoreactivity for tyrosine hydroxylase (TH), the rate-limiting enzyme in dopamine synthesis. In the HGprt-deficient mouse model, immunohistochemical stains for TH revealed no obvious loss of midbrain dopamine neurons, but quantitative immunoblots revealed reduced TH expression in the striatum. Finally, 10 independent HGprt-deficient mouse MN9D neuroblastoma lines showed no signs of impaired viability, but FACS revealed significantly reduced TH immunoreactivity compared to the control parent line. INTERPRETATION These results reveal an unusual phenomenon in which the neurochemical phenotype of dopaminergic neurons is not linked with a degenerative process. They suggest an important relationship between purine recycling pathways and the neurochemical integrity of the dopaminergic phenotype.
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Affiliation(s)
- Martin Göttle
- Department of Neurology, Emory University, Atlanta, GA
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Cattelan P, Dolcetta D, Hladnik U, Fortunati E. HIV-1 TAT-mediated protein transduction of human HPRT into deficient cells. Biochem Biophys Res Commun 2013; 441:114-9. [PMID: 24129187 DOI: 10.1016/j.bbrc.2013.10.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Accepted: 10/07/2013] [Indexed: 11/19/2022]
Abstract
Lesch-Nyhan disease (LND) is a severe and incurable X-linked genetic syndrome caused by the deficiency of hypoxanthine-guanine phosphoribosyltransferase (HPRT), resulting in severe alterations of central nervous system, hyperuricemia and subsequent impaired renal functions. Therapeutic options consist in supportive care and treatments of complications, but the disease remains largely untreatable. Enzyme replacement of the malfunctioning cytosolic protein might represent a possible therapeutic approach for the LND treatment. Protein transduction domains, such as the TAT peptide derived from HIV TAT protein, have been used to transduce macromolecules into cells in vitro and in vivo. The present study was aimed to the generation of TAT peptide fused to human HPRT for cell transduction in enzyme deficient cells. Here we document the construction, expression and delivery of a functional HPRT enzyme into deficient cells by TAT transduction domain and by liposome mediated protein transfer. With this approach we demonstrate the correction of the enzymatic defect in HPRT deficient cells. Our data show for the first time the feasibility of the enzyme replacement therapy for the treatment of LND.
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Affiliation(s)
- Paola Cattelan
- 'Mauro Baschirotto' Institute for Rare Diseases-B.I.R.D., 36023 Costozza di Longare, Vicenza, Italy
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