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Qiu Y, Xie E, Xu H, Cheng H, Li G. One-carbon metabolism shapes T cell immunity in cancer. Trends Endocrinol Metab 2024:S1043-2760(24)00160-7. [PMID: 38925992 DOI: 10.1016/j.tem.2024.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 05/30/2024] [Accepted: 05/31/2024] [Indexed: 06/28/2024]
Abstract
One-carbon metabolism (1CM), comprising folate metabolism and methionine metabolism, serves as an important mechanism for cellular energy provision and the production of vital signaling molecules, including single-carbon moieties. Its regulation is instrumental in sustaining the proliferation of cancer cells and facilitating metastasis; in addition, recent research has shed light on its impact on the efficacy of T cell-mediated immunotherapy. In this review, we consolidate current insights into how 1CM affects T cell activation, differentiation, and functionality. Furthermore, we delve into the strategies for modulating 1CM in both T cells and tumor cells to enhance the efficacy of adoptively transferred T cells, overcome metabolic challenges in the tumor microenvironment (TME), and maximize the benefits of T cell-mediated immunotherapy.
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Affiliation(s)
- Yajing Qiu
- National Key Laboratory of Immunity and Inflammation, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou, 215123, Jiangsu, China; Key Laboratory of Synthetic Biology Regulatory Elements, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou, 215123, Jiangsu, China
| | - Ermei Xie
- National Key Laboratory of Immunity and Inflammation, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou, 215123, Jiangsu, China; Key Laboratory of Synthetic Biology Regulatory Elements, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou, 215123, Jiangsu, China
| | - Haipeng Xu
- Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fujian, 350011, China
| | - Hongcheng Cheng
- National Key Laboratory of Immunity and Inflammation, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou, 215123, Jiangsu, China; Key Laboratory of Synthetic Biology Regulatory Elements, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou, 215123, Jiangsu, China.
| | - Guideng Li
- National Key Laboratory of Immunity and Inflammation, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou, 215123, Jiangsu, China; Key Laboratory of Synthetic Biology Regulatory Elements, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou, 215123, Jiangsu, China.
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da Silva R, de Sarges KML, Cantanhede MHD, da Costa FP, Dos Santos EF, Rodrigues FBB, de Nazaré do Socorro de Almeida Viana M, de Meira Leite M, da Silva ALS, de Brito MTM, da Silva Torres MK, Queiroz MAF, Vallinoto IMVC, Henriques DF, Dos Santos CP, Viana GMR, Quaresma JAS, Falcão LFM, Vallinoto ACR, Dos Santos EJM. Thrombophilia and Immune-Related Genetic Markers in Long COVID. Viruses 2023; 15:v15040885. [PMID: 37112866 PMCID: PMC10143911 DOI: 10.3390/v15040885] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/27/2023] [Accepted: 03/27/2023] [Indexed: 04/29/2023] Open
Abstract
Aiming to evaluate the role of ten functional polymorphisms in long COVID, involved in major inflammatory, immune response and thrombophilia pathways, a cross-sectional sample composed of 199 long COVID (LC) patients and a cohort composed of 79 COVID-19 patients whose follow-up by over six months did not reveal any evidence of long COVID (NLC) were investigated to detect genetic susceptibility to long COVID. Ten functional polymorphisms located in thrombophilia-related and immune response genes were genotyped by real time PCR. In terms of clinical outcomes, LC patients presented higher prevalence of heart disease as preexistent comorbidity. In general, the proportions of symptoms in acute phase of the disease were higher among LC patients. The genotype AA of the interferon gamma (IFNG) gene was observed in higher frequency among LC patients (60%; p = 0.033). Moreover, the genotype CC of the methylenetetrahydrofolate reductase (MTHFR) gene was also more frequent among LC patients (49%; p = 0.045). Additionally, the frequencies of LC symptoms were higher among carriers of IFNG genotypes AA than among non-AA genotypes (Z = 5.08; p < 0.0001). Two polymorphisms were associated with LC in both inflammatory and thrombophilia pathways, thus reinforcing their role in LC. The higher frequencies of acute phase symptoms among LC and higher frequency of underlying comorbidities might suggest that acute disease severity and the triggering of preexisting condition may play a role in LC development.
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Affiliation(s)
- Rosilene da Silva
- Laboratory of Genetics of Complex Diseases, Institute of Biological Sciences, Federal University of Pará, Belém 58255-000, Brazil
- Graduate Program in Biology of Infectious and Parasitic Agents, Federal University of Pará, Belém 58255-000, Brazil
| | - Kevin Matheus Lima de Sarges
- Laboratory of Genetics of Complex Diseases, Institute of Biological Sciences, Federal University of Pará, Belém 58255-000, Brazil
- Graduate Program in Biology of Infectious and Parasitic Agents, Federal University of Pará, Belém 58255-000, Brazil
| | - Marcos Henrique Damasceno Cantanhede
- Laboratory of Genetics of Complex Diseases, Institute of Biological Sciences, Federal University of Pará, Belém 58255-000, Brazil
- Graduate Program in Biology of Infectious and Parasitic Agents, Federal University of Pará, Belém 58255-000, Brazil
| | - Flávia Póvoa da Costa
- Laboratory of Genetics of Complex Diseases, Institute of Biological Sciences, Federal University of Pará, Belém 58255-000, Brazil
- Graduate Program in Biology of Infectious and Parasitic Agents, Federal University of Pará, Belém 58255-000, Brazil
| | - Erika Ferreira Dos Santos
- Laboratory of Genetics of Complex Diseases, Institute of Biological Sciences, Federal University of Pará, Belém 58255-000, Brazil
- Graduate Program in Biology of Infectious and Parasitic Agents, Federal University of Pará, Belém 58255-000, Brazil
| | - Fabíola Brasil Barbosa Rodrigues
- Laboratory of Genetics of Complex Diseases, Institute of Biological Sciences, Federal University of Pará, Belém 58255-000, Brazil
- Graduate Program in Biology of Infectious and Parasitic Agents, Federal University of Pará, Belém 58255-000, Brazil
| | - Maria de Nazaré do Socorro de Almeida Viana
- Laboratory of Genetics of Complex Diseases, Institute of Biological Sciences, Federal University of Pará, Belém 58255-000, Brazil
- Graduate Program in Biology of Infectious and Parasitic Agents, Federal University of Pará, Belém 58255-000, Brazil
| | - Mauro de Meira Leite
- Laboratory of Genetics of Complex Diseases, Institute of Biological Sciences, Federal University of Pará, Belém 58255-000, Brazil
- Graduate Program in Biology of Infectious and Parasitic Agents, Federal University of Pará, Belém 58255-000, Brazil
| | - Andréa Luciana Soares da Silva
- Laboratory of Genetics of Complex Diseases, Institute of Biological Sciences, Federal University of Pará, Belém 58255-000, Brazil
- Graduate Program in Clinical Analysis, Federal University of Pará, Belém 58255-000, Brazil
| | - Mioni Thieli Magalhães de Brito
- Laboratory of Genetics of Complex Diseases, Institute of Biological Sciences, Federal University of Pará, Belém 58255-000, Brazil
- Graduate Program in Clinical Analysis, Federal University of Pará, Belém 58255-000, Brazil
| | - Maria Karoliny da Silva Torres
- Graduate Program in Biology of Infectious and Parasitic Agents, Federal University of Pará, Belém 58255-000, Brazil
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará, Belém 58255-000, Brazil
| | - Maria Alice Freitas Queiroz
- Graduate Program in Biology of Infectious and Parasitic Agents, Federal University of Pará, Belém 58255-000, Brazil
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará, Belém 58255-000, Brazil
| | - Izaura Maria Vieira Cayres Vallinoto
- Graduate Program in Biology of Infectious and Parasitic Agents, Federal University of Pará, Belém 58255-000, Brazil
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará, Belém 58255-000, Brazil
| | - Daniele Freitas Henriques
- Section of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretary of Health Surveillance, Ministry of Health of Brazil, Ananindeua 67000-000, Brazil
| | - Carla Pinheiro Dos Santos
- Section of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretary of Health Surveillance, Ministry of Health of Brazil, Ananindeua 67000-000, Brazil
| | - Giselle Maria Rachid Viana
- Graduate Program in Biology of Infectious and Parasitic Agents, Federal University of Pará, Belém 58255-000, Brazil
- Malaria Basic Research Laboratory, Parasitology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua 67000-000, Brazil
| | - Juarez Antônio Simões Quaresma
- Graduate Program in Biology of Infectious and Parasitic Agents, Federal University of Pará, Belém 58255-000, Brazil
- Center for Biological and Health Sciences, State University of Pará, Belém 58255-000, Brazil
| | - Luiz Fábio Magno Falcão
- Center for Biological and Health Sciences, State University of Pará, Belém 58255-000, Brazil
| | - Antonio Carlos Rosário Vallinoto
- Graduate Program in Biology of Infectious and Parasitic Agents, Federal University of Pará, Belém 58255-000, Brazil
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará, Belém 58255-000, Brazil
| | - Eduardo José Melo Dos Santos
- Laboratory of Genetics of Complex Diseases, Institute of Biological Sciences, Federal University of Pará, Belém 58255-000, Brazil
- Graduate Program in Biology of Infectious and Parasitic Agents, Federal University of Pará, Belém 58255-000, Brazil
- Graduate Program in Clinical Analysis, Federal University of Pará, Belém 58255-000, Brazil
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Leclerc D, Jelinek J, Christensen KE, Issa JPJ, Rozen R. High folic acid intake increases methylation-dependent expression of Lsr and dysregulates hepatic cholesterol homeostasis. J Nutr Biochem 2020; 88:108554. [PMID: 33220403 DOI: 10.1016/j.jnutbio.2020.108554] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 09/17/2020] [Accepted: 11/12/2020] [Indexed: 12/12/2022]
Abstract
Food fortification with folic acid and increased use of vitamin supplements have raised concerns about high folic acid intake. We previously showed that high folic acid intake was associated with hepatic degeneration, decreased levels of methylenetetrahydrofolate reductase (MTHFR), lower methylation potential, and perturbations of lipid metabolism. MTHFR synthesizes the folate derivative for methylation reactions. In this study, we assessed the possibility that high folic acid diets, fed to wild-type and Mthfr+/- mice, could alter DNA methylation and/or deregulate hepatic cholesterol homeostasis. Digital restriction enzyme analysis of methylation in liver revealed DNA hypomethylation of a CpG in the lipolysis-stimulated lipoprotein receptor (Lsr) gene, which is involved in hepatic uptake of cholesterol. Pyrosequencing confirmed this methylation change and identified hypomethylation of several neighboring CpG dinucleotides. Lsr expression was increased and correlated negatively with DNA methylation and plasma cholesterol. A putative binding site for E2F1 was identified. ChIP-qPCR confirmed reduced E2F1 binding when methylation at this site was altered, suggesting that it could be involved in increasing Lsr expression. Expression of genes in cholesterol synthesis, transport or turnover (Abcg5, Abcg8, Abcc2, Cyp46a1, and Hmgcs1) was perturbed by high folic acid intake. We also observed increased hepatic cholesterol and increased expression of genes such as Sirt1, which might be involved in a rescue response to restore cholesterol homeostasis. Our work suggests that high folic acid consumption disturbs cholesterol homeostasis in liver. This finding may have particular relevance for MTHFR-deficient individuals, who represent ~10% of many populations.
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Affiliation(s)
- Daniel Leclerc
- Departments of Human Genetics and Pediatrics, McGill University, Research Institute of the McGill University Health Center, Montreal, Quebec, Canada
| | - Jaroslav Jelinek
- Fels Institute for Cancer Research and Molecular Biology, Temple University, Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Karen E Christensen
- Departments of Human Genetics and Pediatrics, McGill University, Research Institute of the McGill University Health Center, Montreal, Quebec, Canada
| | - Jean-Pierre J Issa
- Fels Institute for Cancer Research and Molecular Biology, Temple University, Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Rima Rozen
- Departments of Human Genetics and Pediatrics, McGill University, Research Institute of the McGill University Health Center, Montreal, Quebec, Canada.
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Graydon JS, Claudio K, Baker S, Kocherla M, Ferreira M, Roche-Lima A, Rodríguez-Maldonado J, Duconge J, Ruaño G. Ethnogeographic prevalence and implications of the 677C>T and 1298A>C MTHFR polymorphisms in US primary care populations. Biomark Med 2019; 13:649-661. [PMID: 31157538 PMCID: PMC6630484 DOI: 10.2217/bmm-2018-0392] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 03/25/2019] [Indexed: 02/04/2023] Open
Abstract
Aim: Variants of the MTHFR gene have been associated with a wide range of diseases. Materials & methods: The present study analyzed data from clinical genotyping of MTHFR 677C>T and 1298A>C in 1405 patients in urban primary care settings. Results: Striking differences in ethnogeographic frequencies of MTHFR polymorphisms were observed. African-Americans appear to be protected from MTHFR deficiency. Hispanics and Caucasians may be at elevated risk due to increased frequencies of 677C>T and 1298A>C, respectively. Conclusion: Individuals carrying mutations for both genes were rare and doubly homozygous mutants were absent, suggesting the TTcc is extremely rare in the greater population. The results suggest multilocus MTHFR genotyping may yield deeper insight into the ethnogeographic association between MTHFR variants and disease.
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Affiliation(s)
- James S Graydon
- Laboratory of Personalized Health, Genomas, Inc., Hartford, CT 06102, USA
| | - Karla Claudio
- Pharmaceutical Sciences department, University of Puerto Rico School of Pharmacy, San Juan, PR 00936, USA
| | - Seth Baker
- Clinical Laboratory Partners, Hartford Healthcare, Hartford, CT 06102, USA
| | - Mohan Kocherla
- Laboratory of Personalized Health, Genomas, Inc., Hartford, CT 06102, USA
| | - Mark Ferreira
- Laboratory of Personalized Health, Genomas, Inc., Hartford, CT 06102, USA
| | - Abiel Roche-Lima
- Center for Collaborative Research in Health Disparities, University of Puerto Rico School of Medicine, San Juan, PR 00936, USA
| | - Jovaniel Rodríguez-Maldonado
- Center for Collaborative Research in Health Disparities, University of Puerto Rico School of Medicine, San Juan, PR 00936, USA
| | - Jorge Duconge
- Pharmaceutical Sciences department, University of Puerto Rico School of Pharmacy, San Juan, PR 00936, USA
| | - Gualberto Ruaño
- Laboratory of Personalized Health, Genomas, Inc., Hartford, CT 06102, USA
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Early Manifestations of Brain Aging in Mice Due to Low Dietary Folate and Mild MTHFR Deficiency. Mol Neurobiol 2018; 56:4175-4191. [PMID: 30288696 DOI: 10.1007/s12035-018-1375-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 09/27/2018] [Indexed: 10/28/2022]
Abstract
Folate is an important B vitamin required for methylation reactions, nucleotide and neurotransmitter synthesis, and maintenance of homocysteine at nontoxic levels. Its metabolism is tightly linked to that of choline, a precursor to acetylcholine and membrane phospholipids. Low folate intake and genetic variants in folate metabolism, such as the methylenetetrahydrofolate reductase (MTHFR) 677 C>T polymorphism, have been suggested to impact brain function and increase the risk for cognitive decline and late-onset Alzheimer's disease. Our study aimed to assess the impact of genetic and nutritional disturbances in folate metabolism, and their potential interaction, on features of cognitive decline and brain biochemistry in a mouse model. Wild-type and Mthfr+/- mice, a model for the MTHFR 677 C>T polymorphism, were fed control or folate-deficient diets from weaning until 8 and 10 months of age. We observed short-term memory impairment measured by the novel object paradigm, altered transcriptional levels of synaptic markers and epigenetic enzymes, as well as impaired choline metabolism due to the Mthfr+/- genotype in cortex or hippocampus. We also detected changes in mRNA levels of Presenillin-1, neurotrophic factors, one-carbon metabolic and epigenetic enzymes, as well as reduced levels of S-adenosylmethionine and acetylcholine, due to the folate-deficient diet. These findings shed further insights into the mechanisms by which genetic and dietary folate metabolic disturbances increase the risk for cognitive decline and suggest that these mechanisms are distinct.
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De Mattia E, Dreussi E, Montico M, Gagno S, Zanusso C, Quartuccio L, De Vita S, Guardascione M, Buonadonna A, D'Andrea M, Pella N, Favaretto A, Mini E, Nobili S, Romanato L, Cecchin E, Toffoli G. A Clinical-Genetic Score to Identify Surgically Resected Colorectal Cancer Patients Benefiting From an Adjuvant Fluoropyrimidine-Based Therapy. Front Pharmacol 2018; 9:1101. [PMID: 30337874 PMCID: PMC6180157 DOI: 10.3389/fphar.2018.01101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 09/10/2018] [Indexed: 12/20/2022] Open
Abstract
There are clinical challenges related to adjuvant treatment in colorectal cancer (CRC) and novel molecular markers are needed for better risk stratification of patients. Our aim was to integrate our previously reported clinical-genetic prognostic score with new immunogenetic markers of 5-year disease-free survival (DFS) to evaluate the recurrence risk stratification before fluoropyrimidine (FL)-based adjuvant therapy. The study population included a total of 270 stage II-III CRC patients treated with adjuvant FL with (FL + OXA, n = 119) or without oxaliplatin (FL, n = 151). Patients were genotyped for a panel of 192 tagging polymorphisms in 34 immune-related genes. The IFNG-rs1861494 polymorphism was associated with worse DFS in the FL + OXA (HR = 2.14, 95%CI 1.13–4.08; P = 0.020, q-value = 0.249) and FL (HR = 1.97, 95%CI 1.00–3.86; P = 0.049) cohorts, according to a dominant model. The integration of IFNG-rs1861494 in our previous clinical genetic multiparametric score of DFS improved the patients’ risk stratification (Log-rank P = 0.0026 in the pooled population). These findings could improve the discrimination of patients who would benefit from adjuvant treatment. In addition, the results may help better elucidate the interplay between the immune system and chemotherapeutics and help determine the efficacy of anti-tumor strategies.
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Affiliation(s)
- Elena De Mattia
- Experimental and Clinical Pharmacology Unit, CRO Aviano National Cancer Institute, Istituto di Ricovero e Cura a Carattere Scientifico, Aviano, Italy
| | - Eva Dreussi
- Experimental and Clinical Pharmacology Unit, CRO Aviano National Cancer Institute, Istituto di Ricovero e Cura a Carattere Scientifico, Aviano, Italy
| | - Marcella Montico
- Scientific Directorate, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, Italy
| | - Sara Gagno
- Experimental and Clinical Pharmacology Unit, CRO Aviano National Cancer Institute, Istituto di Ricovero e Cura a Carattere Scientifico, Aviano, Italy
| | - Chiara Zanusso
- Experimental and Clinical Pharmacology Unit, CRO Aviano National Cancer Institute, Istituto di Ricovero e Cura a Carattere Scientifico, Aviano, Italy
| | - Luca Quartuccio
- Department of Medical Area (DAME), Rheumatology Clinic, Santa Maria della Misericordia University Hospital, Udine, Italy
| | - Salvatore De Vita
- Department of Medical Area (DAME), Rheumatology Clinic, Santa Maria della Misericordia University Hospital, Udine, Italy
| | - Michela Guardascione
- Experimental and Clinical Pharmacology Unit, CRO Aviano National Cancer Institute, Istituto di Ricovero e Cura a Carattere Scientifico, Aviano, Italy
| | - Angela Buonadonna
- Medical Oncology Unit B, CRO Aviano National Cancer Institute, Istituto di Ricovero e Cura a Carattere Scientifico, Aviano, Italy
| | - Mario D'Andrea
- Medical Oncology Unit, "San Filippo Neri Hospital", Rome, Italy
| | | | | | - Enrico Mini
- Department of Health Sciences, University of Florence, Florence, Italy
| | - Stefania Nobili
- Department of Health Sciences, University of Florence, Florence, Italy
| | - Loredana Romanato
- Experimental and Clinical Pharmacology Unit, CRO Aviano National Cancer Institute, Istituto di Ricovero e Cura a Carattere Scientifico, Aviano, Italy
| | - Erika Cecchin
- Experimental and Clinical Pharmacology Unit, CRO Aviano National Cancer Institute, Istituto di Ricovero e Cura a Carattere Scientifico, Aviano, Italy
| | - Giuseppe Toffoli
- Experimental and Clinical Pharmacology Unit, CRO Aviano National Cancer Institute, Istituto di Ricovero e Cura a Carattere Scientifico, Aviano, Italy
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Eyring KR, Pedersen BS, Maclean KN, Stabler SP, Yang IV, Schwartz DA. Methylene-tetrahydrofolate reductase contributes to allergic airway disease. PLoS One 2018; 13:e0190916. [PMID: 29329322 PMCID: PMC5766142 DOI: 10.1371/journal.pone.0190916] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 12/22/2017] [Indexed: 12/01/2022] Open
Abstract
Rationale Environmental exposures strongly influence the development and progression of asthma. We have previously demonstrated that mice exposed to a diet enriched with methyl donors during vulnerable periods of fetal development can enhance the heritable risk of allergic airway disease through epigenetic changes. There is conflicting evidence on the role of folate (one of the primary methyl donors) in modifying allergic airway disease. Objectives We hypothesized that blocking folate metabolism through the loss of methylene-tetrahydrofolate reductase (Mthfr) activity would reduce the allergic airway disease phenotype through epigenetic mechanisms. Methods Allergic airway disease was induced in C57BL/6 and C57BL/6Mthfr-/- mice through house dust mite (HDM) exposure. Airway inflammation and airway hyperresponsiveness (AHR) were measured between the two groups. Gene expression and methylation profiles were generated for whole lung tissue. Disease and molecular outcomes were evaluated in C57BL/6 and C57BL/6Mthfr-/- mice supplemented with betaine. Measurements and main results Loss of Mthfr alters single carbon metabolite levels in the lung and serum including elevated homocysteine and cystathionine and reduced methionine. HDM-treated C57BL/6Mthfr-/- mice demonstrated significantly less airway hyperreactivity (AHR) compared to HDM-treated C57BL/6 mice. Furthermore, HDM-treated C57BL/6Mthfr-/- mice compared to HDM-treated C57BL/6 mice have reduced whole lung lavage (WLL) cellularity, eosinophilia, and Il-4/Il-5 cytokine concentrations. Betaine supplementation reversed parts of the HDM-induced allergic airway disease that are modified by Mthfr loss. 737 genes are differentially expressed and 146 regions are differentially methylated in lung tissue from HDM-treated C57BL/6Mthfr-/- mice and HDM-treated C57BL/6 mice. Additionally, analysis of methylation/expression relationships identified 503 significant correlations. Conclusion Collectively, these findings indicate that the loss of folate as a methyl donor is a modifier of allergic airway disease, and that epigenetic and expression changes correlate with this modification. Further investigation into the mechanisms that drive this observation is warranted.
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Affiliation(s)
- Kenneth R. Eyring
- Department of Medicine, School of Medicine, University of Colorado, Aurora, CO, United States of America
| | - Brent S. Pedersen
- Department of Medicine, School of Medicine, University of Colorado, Aurora, CO, United States of America
| | - Kenneth N. Maclean
- Department of Pediatrics, School of Medicine, University of Colorado, Aurora, CO, United States of America
| | - Sally P. Stabler
- Department of Medicine, School of Medicine, University of Colorado, Aurora, CO, United States of America
| | - Ivana V. Yang
- Department of Medicine, School of Medicine, University of Colorado, Aurora, CO, United States of America
| | - David A. Schwartz
- Department of Medicine, School of Medicine, University of Colorado, Aurora, CO, United States of America
- Department of Immunology, School of Medicine, University of Colorado, Aurora, CO, United States of America
- * E-mail:
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Clayton PT, Mills PB. Micronutrients. JOURNAL OF INBORN ERRORS OF METABOLISM AND SCREENING 2018. [DOI: 10.1177/2326409818765011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Peter T. Clayton
- Genetics and Genomic Medicine, UCL, Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Philippa B. Mills
- Genetics and Genomic Medicine, UCL, Great Ormond Street Institute of Child Health, London, United Kingdom
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Guilliams TG. MTHFR, Homocysteine and Nutrient Needs. Integr Med (Encinitas) 2018. [DOI: 10.1016/b978-0-323-35868-2.00038-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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10
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Antipurinergic therapy for autism-An in-depth review. Mitochondrion 2017; 43:1-15. [PMID: 29253638 DOI: 10.1016/j.mito.2017.12.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 12/11/2017] [Accepted: 12/14/2017] [Indexed: 12/13/2022]
Abstract
Are the symptoms of autism caused by a treatable metabolic syndrome that traces to the abnormal persistence of a normal, alternative functional state of mitochondria? A small clinical trial published in 2017 suggests this is possible. Based on a new unifying theory of pathogenesis for autism called the cell danger response (CDR) hypothesis, this study of 10 boys, ages 5-14years, showed that all 5 boys who received antipurinergic therapy (APT) with a single intravenous dose of suramin experienced improvements in all the core symptoms of autism that lasted for 5-8weeks. Language, social interaction, restricted interests, and repetitive movements all improved. Two children who were non-verbal spoke their first sentences. None of these improvements were observed in the placebo group. Larger and longer studies are needed to confirm this promising discovery. This review introduces the concept of M2 (anti-inflammatory) and M1 (pro-inflammatory) mitochondria that are polarized along a functional continuum according to cell stress. The pathophysiology of the CDR, the complementary functions of M1 and M2 mitochondria, relevant gene-environment interactions, and the metabolic underpinnings of behavior are discussed as foundation stones for understanding the improvements in ASD behaviors produced by antipurinergic therapy in this small clinical trial.
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11
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Dattilo M, D'Amato G, Caroppo E, Ménézo Y. Improvement of gamete quality by stimulating and feeding the endogenous antioxidant system: mechanisms, clinical results, insights on gene-environment interactions and the role of diet. J Assist Reprod Genet 2016; 33:1633-1648. [PMID: 27423667 PMCID: PMC5171888 DOI: 10.1007/s10815-016-0767-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 06/30/2016] [Indexed: 01/21/2023] Open
Abstract
Oxidative damage triggers extensive repair in gametes and thereafter in the zygote but it results in clinically relevant damage when affecting the maturation of the gametes chromatin, i.e. padlocking and epigenetic marking. It associates with defective DNA methylation and/or with oxidation of the methyl marks leading to derangement of gamete epigenetics, defects of chromatin condensation and aneuploidy. A proper feed to the one carbon cycle has the potential to stimulate the endogenous antioxidant defences, i.e. gluthatione synthesis, and to activate compensative homeostatic mechanisms restoring both the oxy-redox balance and DNA methylation, which are indeed strictly cross-regulated. This has been shown to produce measurable clinical improvements of male reproductive potential in pilot studies herein summarised. However, the effects of dietary habits and of supplementations are variable according to the individual genetic substrate, as genetic variants of several of the concerned enzymes occur with high frequency. Individual risk assessments and personalised interventions are still difficult to implement, in the meantime, a very varied diet may facilitate metabolic compensation in the majority of the cases. This review aims to report on the mechanisms of damage, on the opportunities to modulate the physiologic oxy-redox homeostasis by means of a varied diet or dietary supplements and on the open issues related to the genetic variability of the population.
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Affiliation(s)
| | - Giuseppe D'Amato
- ASL Bari, U.O. Fisiopatologia della Riproduzione Umana e PMA, Conversano, Ba, Italy
| | - Ettore Caroppo
- ASL Bari, U.O. Fisiopatologia della Riproduzione Umana e PMA, Conversano, Ba, Italy
| | - Yves Ménézo
- London Fertility Associates, 104 Harley Street, London, UK
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12
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Mirgal D, Ghosh K, Mahanta J, Dutta P, Shetty S. Possible selection of host folate pathway gene polymorphisms in patients with malaria from a malaria endemic region in North East India. Trans R Soc Trop Med Hyg 2016; 110:294-8. [PMID: 27198213 DOI: 10.1093/trstmh/trw026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Accepted: 03/23/2016] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Recent studies in experimental mice have shown that mild deficiency of methylenetetrahydrofolate reductase (MTHFR) enzyme confers protection against malaria, thus providing an important basis for the hypothesis that MTHFR polymorphism, i.e. C677T, might have been subjected to selection pressure against malaria. The present study was undertaken in a malaria endemic region in North East India to assess whether a similar selection advantage exists for other genes in folate metabolism pathway. METHODS A total of 401 subjects including 131 symptomatic malaria, 97 asymptomatic malaria and 173 normal healthy controls were analysed for nine polymorphisms (single-nucleotide polymorphisms [SNPs] in eight genes and insertion/deletion in one gene): MTHFR C677T, methionine synthase reductase (MTRR) A66G, glutamate carboxypeptidase II (GCPII) C1561T, cystathionine beta-synthase (CBS) 844ins68, reduced folate carrier-1 (RFC-1) G80A, serine hydroxymethyltransferase (SHMT) C1420T, methionine synthase (MTR) A2756G, MTHFR G1793A (D 919G), glycine N-methyltransferase (GNMT) 1289 by PCR-RFLP technique. Differences in frequencies of genotype distribution of each polymorphic marker between these groups were evaluated. RESULTS MTRR A2756G, SHMT C1420T, GCPII C1561T, MTRR A2756G and GNMT C1289T and RFC1 G80A polymorphisms showed significantly different prevalence between different groups analyzed. No significant differences were seen in the distribution of other polymorphisms. CONCLUSIONS The study gives a clue for the possible selection of specific polymorphisms in the genes involved in the folate metabolism pathway by malaria parasite.
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Affiliation(s)
- Darshana Mirgal
- Department of Hemostasis and Thrombosis, National Institute of Immunohaematology (ICMR), New Multistoreyed Building, KEM Hospital, Parel, Mumbai
| | | | | | - Prafulla Dutta
- Regional Medical Research Centre (ICMR), Dibrugarh, Assam
| | - Shrimati Shetty
- Department of Hemostasis and Thrombosis, National Institute of Immunohaematology (ICMR), New Multistoreyed Building, KEM Hospital, Parel, Mumbai
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Abstract
Food fortified with folic acid has been available for consumption in North America for over a decade. This strategy has led to an increase in folate levels in the general population and, more importantly, a significant decrease in the incidence of neural tube defects. However, this increase in folate intake has been associated with a greater risk of cancer disease. Many African countries are now embracing this concept; however, because folate promotes malaria parasite division, as it does in cancer cells, there is a possibility of malaria exacerbation if folate intake is increased. A precedent for such a concern is the now compelling evidence showing that an increase in iron intake can lead to a higher malaria risk; as a result, mass administration of iron in malaria-endemic areas is not recommended. In this article, we review work on the effect of folate on malaria parasites. Although this topic has received little research attention, the available data suggest that the increase in folate concentration could be associated with an increase in malaria infection. Thus, the introduction of food fortification with folic acid in malaria-endemic areas should be attended by precautionary programs to monitor the risk of malaria.
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Affiliation(s)
- Alexis Nzila
- Department of Life Sciences, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
| | - John Okombo
- University of Cape Town, Cape Town, South Africa
| | - John Hyde
- Manchester Institute of Biotechnology (MIB), Manchester, United Kingdom
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14
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Meadows DN, Bahous RH, Best AF, Rozen R. High Dietary Folate in Mice Alters Immune Response and Reduces Survival after Malarial Infection. PLoS One 2015; 10:e0143738. [PMID: 26599510 PMCID: PMC4658061 DOI: 10.1371/journal.pone.0143738] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 11/09/2015] [Indexed: 12/20/2022] Open
Abstract
Malaria is a significant global health issue, with nearly 200 million cases in 2013 alone. Parasites obtain folate from the host or synthesize it de novo. Folate consumption has increased in many populations, prompting concerns regarding potential deleterious consequences of higher intake. The impact of high dietary folate on the host’s immune function and response to malaria has not been examined. Our goal was to determine whether high dietary folate would affect response to malarial infection in a murine model of cerebral malaria. Mice were fed control diets (CD, recommended folate level for rodents) or folic acid-supplemented diets (FASD, 10x recommended level) for 5 weeks before infection with Plasmodium berghei ANKA. Survival, parasitemia, numbers of immune cells and other infection parameters were assessed. FASD mice had reduced survival (p<0.01, Cox proportional hazards) and higher parasitemia (p< 0.01, joint model of parasitemia and survival) compared with CD mice. FASD mice had lower numbers of splenocytes, total T cells, and lower numbers of specific T and NK cell sub-populations, compared with CD mice (p<0.05, linear mixed effects). Increased brain TNFα immunoreactive protein (p<0.01, t-test) and increased liver Abca1 mRNA (p<0.01, t-test), a modulator of TNFα, were observed in FASD mice; these variables correlated positively (rs = 0.63, p = 0.01). Bcl-xl/Bak mRNA was increased in liver of FASD mice (p<0.01, t-test), suggesting reduced apoptotic potential. We conclude that high dietary folate increases parasite replication, disturbs the immune response and reduces resistance to malaria in mice. These findings have relevance for malaria-endemic regions, when considering anti-folate anti-malarials, food fortification or vitamin supplementation programs.
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Affiliation(s)
- Danielle N. Meadows
- Department of Human Genetics, McGill University, McGill University Health Center, Montreal, Quebec, Canada
| | - Renata H. Bahous
- Department of Human Genetics, McGill University, McGill University Health Center, Montreal, Quebec, Canada
| | - Ana F. Best
- Department of Mathematics and Statistics, McGill University, Montreal, Quebec, Canada
| | - Rima Rozen
- Department of Human Genetics, McGill University, McGill University Health Center, Montreal, Quebec, Canada
- Department of Pediatrics, McGill University, McGill University Health Center, Montreal, Quebec, Canada
- * E-mail:
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15
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Karaca S, Cesuroglu T, Karaca M, Erge S, Polimanti R. Genetic diversity of disease-associated loci in Turkish population. J Hum Genet 2015; 60:193-8. [PMID: 25716910 DOI: 10.1038/jhg.2015.8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 12/18/2014] [Accepted: 12/27/2014] [Indexed: 12/23/2022]
Abstract
Many consortia and international projects have investigated the human genetic variation of a large number of ethno-geographic groups. However, populations with peculiar genetic features, such as the Turkish population, are still absent in publically available datasets. To explore the genetic predisposition to health-related traits of the Turkish population, we analyzed 34 genes associated with different health-related traits (for example, lipid metabolism, cardio-vascular diseases, hormone metabolism, cellular detoxification, aging and energy metabolism). We observed relevant differences between the Turkish population and populations with non-European ancestries (that is, Africa and East Asia) in some of the investigated genes (that is, AGT, APOE, CYP1B1, GNB3, IL10, IL6, LIPC and PON1). As most complex traits are highly polygenic, we developed polygenic scores associated with different health-related traits to explore the genetic diversity of the Turkish population with respect to other human groups. This approach showed significant differences between the Turkish population and populations with non-European ancestries, as well as between Turkish and Northern European individuals. This last finding is in agreement with the genetic structure of European and Middle East populations, and may also agree with epidemiological evidences about the health disparities of Turkish communities in Northern European countries.
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Affiliation(s)
- Sefayet Karaca
- 1] School of Health Science, Aksaray University, Aksaray, Turkey [2] GENAR Institute for Public Health and Genomics Research, Ankara, Turkey
| | - Tomris Cesuroglu
- 1] GENAR Institute for Public Health and Genomics Research, Ankara, Turkey [2] Department of Social Medicine, Maastricht University, Maastricht, The Netherlands
| | - Mehmet Karaca
- Department of Biology, Faculty of Science and Arts, Aksaray University, Aksaray, Turkey
| | - Sema Erge
- 1] GENAR Institute for Public Health and Genomics Research, Ankara, Turkey [2] Department of Nutrition and Dietetics, Faculty of Health Science, Zirve University, Gaziantep, Turkey
| | - Renato Polimanti
- Department of Psychiatry, Yale University School of Medicine, West Haven, CT, USA
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