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Li J, Zhang K, Han Y, Peng R, Li L, Li J, Lin G. A novel method for the preparation of reproducible, stable, and non-infectious quality control materials for Chlamydia trachomatis nucleic acid detection. Microbiol Spectr 2024:e0083724. [PMID: 39373484 DOI: 10.1128/spectrum.00837-24] [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: 04/16/2024] [Accepted: 09/04/2024] [Indexed: 10/08/2024] Open
Abstract
Chlamydia trachomatis (CT) is a significant sexually transmitted pathogen known to evoke severe complications, including infertility. Nucleic acid amplification tests (NAATs) are recommended by the World Health Organization to detect CT infection. Furthermore, the establishment of methods, performance validation, internal quality control, and external quality assessment for CT NAATs necessitate the utilization of quality control materials (QCs). QCs are specimens or solutions that are analyzed for quality control purposes in a test system. In this study, we established a novel cell line that stably integrates CT amplification target sequences for producing QCs for CT NAATs. Utilizing clustered regularly interspaced short palindromic repeats/CRISPR-associated protein 9 technology, we integrated the CT plasmid-mediated sequence (comprising the full length of the cryptic plasmid and the major outer membrane protein gene, 9,136 bp) into the MUC4 gene of HEK293T cells. Positive clones were screened through flow cytometric sorting, single-cell culture, and PCR-based identification, followed by the establishment of stable cell lines. These cells were then processed using optimized cell preservation procedures to prepare QCs. The sequence insertion copy number was confirmed by real-time quantitative PCR. This novel CT QCs demonstrate excellent clinical applicability, non-infectiousness, quantifiability, and stability. With an integrated sequence exceeding 9 kb in length, it offers exceptional flexibility for adapting to new kit developments. Furthermore, maintaining a well-defined copy number and stable shelf life, the QCs closely aligns with the quality control requirements of CT NAATs. This study presents an innovative method for preparing QCs for CT nucleic acid detection, making a valuable contribution to improving the performance of CT NAATs.IMPORTANCEUntreated CT infections impose significant burdens on individuals and communities, underscoring the importance of early and accurate testing via CT NAATs for disease control. QCs are instrumental in identifying testing process issues. Hence, we developed a cell line integrating CT-amplified target sequences as readily accessible non-infectious QCs. These QCs boast several advantages: the integration of over 9 kb of CT sequence allows for broad applicability, allowing flexible adaptation to the development of new kits. Confirming the CT sequence copy number provides a reliable basis for QC concentration preparation and kit detection limit evaluation. Optimized preservation protocol enhances QC stability during storage, facilitating convenient shipment to clinical laboratories at ambient temperatures. In summary, our novel CT QCs offer a powerful tool for improving CT NAAT performance and present a fresh perspective on QC preparation for detecting nucleic acids from intracellular parasitic pathogens.
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Affiliation(s)
- Jing Li
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, China
- Graduate School, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Kuo Zhang
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, China
- Graduate School, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Beijing Engineering Research Center of Laboratory Medicine, Beijing, China
| | - Yanxi Han
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, China
- Graduate School, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Beijing Engineering Research Center of Laboratory Medicine, Beijing, China
| | - Rongxue Peng
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, China
- Graduate School, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Beijing Engineering Research Center of Laboratory Medicine, Beijing, China
| | - Lin Li
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, China
- Graduate School, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Beijing Engineering Research Center of Laboratory Medicine, Beijing, China
| | - Jinming Li
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, China
- Graduate School, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Beijing Engineering Research Center of Laboratory Medicine, Beijing, China
| | - Guigao Lin
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, China
- Graduate School, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Beijing Engineering Research Center of Laboratory Medicine, Beijing, China
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2
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Michelson J, Rausser S, Peng A, Yu T, Sturm G, Trumpff C, Kaufman BA, Rai AJ, Picard M. MitoQuicLy: A high-throughput method for quantifying cell-free DNA from human plasma, serum, and saliva. Mitochondrion 2023; 71:26-39. [PMID: 37172669 PMCID: PMC10524316 DOI: 10.1016/j.mito.2023.05.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 04/12/2023] [Accepted: 05/07/2023] [Indexed: 05/15/2023]
Abstract
Circulating cell-free mitochondrial DNA (cf-mtDNA) is an emerging biomarker of psychobiological stress and disease which predicts mortality and is associated with various disease states. To evaluate the contribution of cf-mtDNA to health and disease states, standardized high-throughput procedures are needed to quantify cf-mtDNA in relevant biofluids. Here, we describe MitoQuicLy: Mitochondrial DNA Quantification in cell-free samples by Lysis. We demonstrate high agreement between MitoQuicLy and the commonly used column-based method, although MitoQuicLy is faster, cheaper, and requires a smaller input sample volume. Using 10 µL of input volume with MitoQuicLy, we quantify cf-mtDNA levels from three commonly used plasma tube types, two serum tube types, and saliva. We detect, as expected, significant inter-individual differences in cf-mtDNA across different biofluids. However, cf-mtDNA levels between concurrently collected plasma, serum, and saliva from the same individual differ on average by up to two orders of magnitude and are poorly correlated with one another, pointing to different cf-mtDNA biology or regulation between commonly used biofluids in clinical and research settings. Moreover, in a small sample of healthy women and men (n = 34), we show that blood and saliva cf-mtDNAs correlate with clinical biomarkers differently depending on the sample used. The biological divergences revealed between biofluids, together with the lysis-based, cost-effective, and scalable MitoQuicLy protocol for biofluid cf-mtDNA quantification, provide a foundation to examine the biological origin and significance of cf-mtDNA to human health.
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Affiliation(s)
- Jeremy Michelson
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, USA
| | - Shannon Rausser
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, USA
| | - Amanda Peng
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, USA
| | - Temmie Yu
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, USA
| | - Gabriel Sturm
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA, USA
| | - Caroline Trumpff
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, USA
| | - Brett A Kaufman
- Center for Metabolism and Mitochondrial Medicine and the Vascular Medicine Institute, Division of Cardiology, Department of Medicine, University of Pittsburgh School of Medicine, USA
| | - Alex J Rai
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY, USA
| | - Martin Picard
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, USA; Department of Neurology, H. Houston Merritt Center, Columbia Translational Neuroscience Initiative, Columbia University Irving Medical Center, New York, NY, USA; New York State Psychiatric Institute, New York, NY, USA.
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3
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Michelson J, Rausser S, Peng A, Yu T, Sturm G, Trumpff C, Kaufman BA, Rai AJ, Picard M. MitoQuicLy: a high-throughput method for quantifying cell-free DNA from human plasma, serum, and saliva. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.04.522744. [PMID: 36711938 PMCID: PMC9882007 DOI: 10.1101/2023.01.04.522744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Circulating cell-free mitochondrial DNA (cf-mtDNA) is an emerging biomarker of psychobiological stress and disease which predicts mortality and is associated with various disease states. To evaluate the contribution of cf-mtDNA to health and disease states, standardized high-throughput procedures are needed to quantify cf-mtDNA in relevant biofluids. Here, we describe MitoQuicLy: Mito chondrial DNA Qu antification in c ell-free samples by Ly sis. We demonstrate high agreement between MitoQuicLy and the commonly used column-based method, although MitoQuicLy is faster, cheaper, and requires a smaller input sample volume. Using 10 µL of input volume with MitoQuicLy, we quantify cf-mtDNA levels from three commonly used plasma tube types, two serum tube types, and saliva. We detect, as expected, significant inter-individual differences in cf-mtDNA across different biofluids. However, cf-mtDNA levels between concurrently collected plasma, serum, and saliva from the same individual differ on average by up to two orders of magnitude and are poorly correlated with one another, pointing to different cf-mtDNA biology or regulation between commonly used biofluids in clinical and research settings. Moreover, in a small sample of healthy women and men (n=34), we show that blood and saliva cf-mtDNAs correlate with clinical biomarkers differently depending on the sample used. The biological divergences revealed between biofluids, together with the lysis-based, cost-effective, and scalable MitoQuicLy protocol for biofluid cf-mtDNA quantification, provide a foundation to examine the biological origin and significance of cf-mtDNA to human health.
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Affiliation(s)
- Jeremy Michelson
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, USA
| | - Shannon Rausser
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, USA
| | - Amanda Peng
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, USA
| | - Temmie Yu
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, USA
| | - Gabriel Sturm
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, California, USA
| | - Caroline Trumpff
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, USA
| | - Brett A. Kaufman
- Center for Metabolism and Mitochondrial Medicine and the Vascular Medicine Institute, Division of Cardiology, Department of Medicine, University of Pittsburgh School of Medicine
| | - Alex J. Rai
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY, USA
| | - Martin Picard
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, USA
- Department of Neurology, H. Houston Merritt Center, Columbia Translational Neuroscience Initiative, Columbia University Irving Medical Center, New York, NY, USA
- New York State Psychiatric Institute, New York, NY, USA
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4
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Urosevic N, Merritt AJ, Inglis TJJ. Plasma cfDNA predictors of established bacteraemic infection. Access Microbiol 2022; 4:acmi000373. [PMID: 36004363 PMCID: PMC9394668 DOI: 10.1099/acmi.0.000373] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 05/16/2022] [Indexed: 11/18/2022] Open
Abstract
Introduction. Increased plasma cell-free DNA (cfDNA) has been reported for various diseases in which cell death and tissue/organ damage contribute to pathogenesis, including sepsis. Gap Statement. While several studies report a rise in plasma cfDNA in bacteraemia and sepsis, the main source of cfDNA has not been identified. Aim. In this study, we wanted to determine which of nuclear, mitochondrial or bacterial cfDNA is the major contributor to raised plasma cfDNA in hospital subjects with bloodstream infections and could therefore serve as a predictor of bacteraemic disease severity. Methodology. The total plasma concentration of double-stranded cfDNA was determined using a fluorometric assay. The presence of bacterial DNA was identified by PCR and DNA sequencing. The copy numbers of human genes, nuclear β globin and mitochondrial MTATP8, were determined by droplet digital PCR. The presence, size and concentration of apoptotic DNA from human cells were established using lab-on-a-chip technology. Results. We observed a significant difference in total plasma cfDNA from a median of 75 ng ml−1 in hospitalised subjects without bacteraemia to a median of 370 ng ml−1 (P=0.0003) in bacteraemic subjects. The copy numbers of nuclear DNA in bacteraemic also differed between a median of 1.6 copies µl−1 and 7.3 copies µl−1 (P=0.0004), respectively. In contrast, increased mitochondrial cfDNA was not specific for bacteraemic subjects, as shown by median values of 58 copies µl−1 in bacteraemic subjects, 55 copies µl−1 in other hospitalised subjects and 5.4 copies µl−1 in healthy controls. Apoptotic nucleosomal cfDNA was detected only in a subpopulation of bacteraemic subjects with documented comorbidities, consistent with elevated plasma C-reactive protein (CRP) levels in these subjects. No bacterial cfDNA was reliably detected by PCR in plasma of bacteraemic subjects over the course of infection with several bacterial pathogens. Conclusions. Our data revealed distinctive plasma cfDNA signatures in different groups of hospital subjects. The total cfDNA was significantly increased in hospital subjects with laboratory-confirmed bloodstream infections comprising nuclear and apoptotic, but not mitochondrial or bacterial cfDNAs. The apoptotic cfDNA, potentially derived from blood cells, predicted established bacteraemia. These findings deserve further investigation in different hospital settings, where cfDNA measurement could provide simple and quantifiable parameters for monitoring a disease progression.
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Affiliation(s)
- Nadezda Urosevic
- School of Medicine, Faculty of Health & Medical Sciences, The University of Western Australia, Nedlands, WA, Australia
- School of Biomedical Sciences, Faculty of Health & Medical Sciences, The University of Western Australia, Nedlands, WA, Australia
| | - Adam J. Merritt
- Department of Microbiology, PathWest Laboratory Medicine, QEII Medical Centre, Nedlands, WA, Australia
| | - Timothy J. J. Inglis
- School of Medicine, Faculty of Health & Medical Sciences, The University of Western Australia, Nedlands, WA, Australia
- School of Biomedical Sciences, Faculty of Health & Medical Sciences, The University of Western Australia, Nedlands, WA, Australia
- Department of Microbiology, PathWest Laboratory Medicine, QEII Medical Centre, Nedlands, WA, Australia
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5
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Cushen SC, Ricci CA, Bradshaw JL, Silzer T, Blessing A, Sun J, Zhou Z, Scroggins SM, Santillan MK, Santillan DA, Phillips NR, Goulopoulou S. Reduced Maternal Circulating Cell-Free Mitochondrial DNA Is Associated With the Development of Preeclampsia. J Am Heart Assoc 2022; 11:e021726. [PMID: 35014857 PMCID: PMC9238514 DOI: 10.1161/jaha.121.021726] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Background Circulating cell-free mitochondrial DNA (ccf-mtDNA) is a damage-associated molecular pattern that reflects cell stress responses and tissue damage, but little is known about ccf-mtDNA in preeclampsia. The main objectives of this study were to determine (1) absolute concentrations of ccf-mtDNA in plasma and mitochondrial DNA content in peripheral blood mononuclear cells and (2) forms of ccf-mtDNA transport in blood from women with preeclampsia and healthy controls. In addition, we sought to establish the association between aberrance in circulating DNA-related metrics, including ccf-mtDNA and DNA clearance mechanisms, and the clinical diagnosis of preeclampsia using bootstrapped penalized logistic regression. Methods and Results Absolute concentrations of ccf-mtDNA were reduced in plasma from women with preeclampsia compared with healthy controls (P≤0.02), while mtDNA copy number in peripheral blood mononuclear cells did not differ between groups (P>0.05). While the pattern of reduced ccf-mtDNA in patients with preeclampsia remained, DNA isolation from plasma using membrane lysis buffer resulted in 1000-fold higher ccf-mtDNA concentrations in the preeclampsia group (P=0.0014) and 430-fold higher ccf-mtDNA concentrations in the control group (P<0.0001). Plasma from women with preeclampsia did not induce greater Toll-like receptor-9-induced nuclear factor kappa-light-chain enhancer of activated B cells-dependent responses in human embryonic kidney 293 cells overexpressing the human TLR-9 gene (P>0.05). Penalized regression analysis showed that women with preeclampsia were more likely to have lower concentrations of ccf-mtDNA as well as higher concentrations of nuclear DNA and DNase I compared with their matched controls. Conclusions Women with preeclampsia have aberrant circulating DNA dynamics, including reduced ccf-mtDNA concentrations and DNA clearance mechanisms, compared with gestational age-matched healthy pregnant women.
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Affiliation(s)
- Spencer C Cushen
- Department of Physiology and Anatomy University of North Texas Health Science Center Fort Worth TX.,Texas College of Osteopathic Medicine University of North Texas Health Science Center Fort Worth TX
| | - Contessa A Ricci
- Department of Physiology and Anatomy University of North Texas Health Science Center Fort Worth TX
| | - Jessica L Bradshaw
- Department of Physiology and Anatomy University of North Texas Health Science Center Fort Worth TX
| | - Talisa Silzer
- Department of Microbiology, Immunology and Genetics University of North Texas Health Science Center Fort Worth TX
| | - Alexandra Blessing
- Department of Microbiology, Immunology and Genetics University of North Texas Health Science Center Fort Worth TX
| | - Jie Sun
- Department of Microbiology, Immunology and Genetics University of North Texas Health Science Center Fort Worth TX
| | - Zhengyang Zhou
- Department of Biostatistics and Epidemiology University of North Texas Health Science Center Fort Worth TX
| | - Sabrina M Scroggins
- Department of Obstetrics and Gynecology University of Iowa Carver College of Medicine Iowa City IA
| | - Mark K Santillan
- Department of Obstetrics and Gynecology University of Iowa Carver College of Medicine Iowa City IA
| | - Donna A Santillan
- Department of Obstetrics and Gynecology University of Iowa Carver College of Medicine Iowa City IA
| | - Nicole R Phillips
- Department of Microbiology, Immunology and Genetics University of North Texas Health Science Center Fort Worth TX
| | - Styliani Goulopoulou
- Department of Physiology and Anatomy University of North Texas Health Science Center Fort Worth TX
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Jiang L, Fei H, Jin X, Liu X, Yang C, Li C, Chen J, Yang A, Zhu J, Wang H, Fei X, Zhang S. Extracellular Vesicle-Mediated Secretion of HLA-E by Trophoblasts Maintains Pregnancy by Regulating the Metabolism of Decidual NK Cells. Int J Biol Sci 2021; 17:4377-4395. [PMID: 34803505 PMCID: PMC8579460 DOI: 10.7150/ijbs.63390] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 09/24/2021] [Indexed: 01/08/2023] Open
Abstract
Extracellular vesicles derived from trophoblasts (T-EVs) play an important role in pregnancy, but the mechanism is not entirely clear. In this study, we found that HLA-E, which is mostly confined to the cytoplasm of trophoblast cells, was secreted by T-EVs. The level of HLA-E in T-EVs from unexplained recurrent spontaneous abortion (URSA) patients was lower than that in normal pregnancy (NP) and RSA patients who had an abnormal embryo karyotype (AK-RSA). T-EVs promoted secretion of IFN-γ and VEGFα by decidual NK (dNK) cells from URSA patients via HLA-E, VEGFα was necessary for angiogenesis and trophoblast growth, and IFN-γ inhibited Th17 induction. Glycolysis and oxidative phosphorylation (OxPhos) were involved in this process. Glycolysis but not OxPhos of dNK cells facilitated by T-EVs was dependent on mTORC1 activation. Inhibition of T-EV production in vivo increased the susceptibility of mice to embryo absorption, which was reversed by transferring exogenous T-EVs. T-EVs promoted secretion of IFN-γ and VEGFα by dNK cells to maintain pregnancy via Qa-1 in abortion-prone mouse models. This study reveals a new mechanism of pregnancy maintenance mediated by HLA-E via T-EVs.
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Affiliation(s)
- Lingling Jiang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310016, Hangzhou, China
- Department of Obstetrics and Gynecology, Key Laboratory of Reproductive Dysfunction, Management of Zhejiang Province, 310016, Hangzhou, China
| | - Haiyi Fei
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310016, Hangzhou, China
- Department of Obstetrics and Gynecology, Key Laboratory of Reproductive Dysfunction, Management of Zhejiang Province, 310016, Hangzhou, China
| | - Xiaoying Jin
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310016, Hangzhou, China
- Department of Obstetrics and Gynecology, Key Laboratory of Reproductive Dysfunction, Management of Zhejiang Province, 310016, Hangzhou, China
| | - Xiu Liu
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310016, Hangzhou, China
- Department of Obstetrics and Gynecology, Key Laboratory of Reproductive Dysfunction, Management of Zhejiang Province, 310016, Hangzhou, China
| | - Cuiyu Yang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310016, Hangzhou, China
- Department of Obstetrics and Gynecology, Key Laboratory of Reproductive Dysfunction, Management of Zhejiang Province, 310016, Hangzhou, China
| | - Chao Li
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310016, Hangzhou, China
- Department of Obstetrics and Gynecology, Key Laboratory of Reproductive Dysfunction, Management of Zhejiang Province, 310016, Hangzhou, China
| | - Jianmin Chen
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310016, Hangzhou, China
- Department of Obstetrics and Gynecology, Key Laboratory of Reproductive Dysfunction, Management of Zhejiang Province, 310016, Hangzhou, China
| | - Anran Yang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310016, Hangzhou, China
- Department of Obstetrics and Gynecology, Key Laboratory of Reproductive Dysfunction, Management of Zhejiang Province, 310016, Hangzhou, China
| | - Jiajuan Zhu
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310016, Hangzhou, China
- Department of Medical, Jiaxing University Affiliated Women and Children Hospital, 314051, Jiaxing, China
| | - Huihong Wang
- Department of Obstetrics and Gynecology, Hangzhou Women's Hospital, 310008, Hangzhou, China
| | - Xiaoyang Fei
- Department of Obstetrics and Gynecology, Hangzhou Women's Hospital, 310008, Hangzhou, China
| | - Songying Zhang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310016, Hangzhou, China
- Department of Obstetrics and Gynecology, Key Laboratory of Reproductive Dysfunction, Management of Zhejiang Province, 310016, Hangzhou, China
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7
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Trumpff C, Michelson J, Lagranha CJ, Taleon V, Karan KR, Sturm G, Lindqvist D, Fernström J, Moser D, Kaufman BA, Picard M. Stress and circulating cell-free mitochondrial DNA: A systematic review of human studies, physiological considerations, and technical recommendations. Mitochondrion 2021; 59:225-245. [PMID: 33839318 PMCID: PMC8418815 DOI: 10.1016/j.mito.2021.04.002] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 02/23/2021] [Accepted: 04/05/2021] [Indexed: 02/07/2023]
Abstract
Cell-free mitochondrial DNA (cf-mtDNA) is a marker of inflammatory disease and a predictor of mortality, but little is known about cf-mtDNA in relation to psychobiology. A systematic review of the literature reveals that blood cf-mtDNA varies in response to common real-world stressors including psychopathology, acute psychological stress, and exercise. Moreover, cf-mtDNA is inducible within minutes and exhibits high intra-individual day-to-day variation, highlighting the dynamic regulation of cf-mtDNA levels. We discuss current knowledge on the mechanisms of cf-mtDNA release, its forms of transport ("cell-free" does not mean "membrane-free"), potential physiological functions, putative cellular and neuroendocrine triggers, and factors that may contribute to cf-mtDNA removal from the circulation. A review of in vitro, pre-clinical, and clinical studies shows conflicting results around the dogma that physiological forms of cf-mtDNA are pro-inflammatory, opening the possibility of other physiological functions, including the cell-to-cell transfer of whole mitochondria. Finally, to enhance the reproducibility and biological interpretation of human cf-mtDNA research, we propose guidelines for blood collection, cf-mtDNA isolation, quantification, and reporting standards, which can promote concerted advances by the community. Defining the mechanistic basis for cf-mtDNA signaling is an opportunity to elucidate the role of mitochondria in brain-body interactions and psychopathology.
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Affiliation(s)
- Caroline Trumpff
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Medical Center, New York, USA
| | - Jeremy Michelson
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Medical Center, New York, USA
| | - Claudia J Lagranha
- University of Pittsburgh, School of Medicine, Division of Cardiology, Center for Metabolism and Mitochondrial Medicine and Vascular Medicine Institute, Pittsburgh, PA, United States
| | - Veronica Taleon
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Medical Center, New York, USA
| | - Kalpita R Karan
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Medical Center, New York, USA
| | - Gabriel Sturm
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Medical Center, New York, USA
| | - Daniel Lindqvist
- Faculty of Medicine, Department of Clinical Sciences, Psychiatry, Lund University, Lund, Sweden; Office of Psychiatry and Habilitation, Region Skåne, Sweden
| | - Johan Fernström
- Faculty of Medicine, Department of Clinical Sciences, Psychiatry, Lund University, Lund, Sweden
| | - Dirk Moser
- Department of Genetic Psychology, Faculty of Psychology, Ruhr-University Bochum, Bochum, Germany
| | - Brett A Kaufman
- University of Pittsburgh, School of Medicine, Division of Cardiology, Center for Metabolism and Mitochondrial Medicine and Vascular Medicine Institute, Pittsburgh, PA, United States
| | - Martin Picard
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Medical Center, New York, USA; Department of Neurology, H. Houston Merritt Center, Columbia Translational Neuroscience Initiative, Columbia University Medical Center, New York, USA; New York State Psychiatric Institute, NY, USA.
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8
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Ware SA, Desai N, Lopez M, Leach D, Zhang Y, Giordano L, Nouraie M, Picard M, Kaufman BA. An automated, high-throughput methodology optimized for quantitative cell-free mitochondrial and nuclear DNA isolation from plasma. J Biol Chem 2020; 295:15677-15691. [PMID: 32900851 DOI: 10.1074/jbc.ra120.015237] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 09/03/2020] [Indexed: 02/06/2023] Open
Abstract
Progress in the study of circulating, cell-free nuclear DNA (ccf-nDNA) in cancer detection has led to the development of noninvasive clinical diagnostic tests and has accelerated the evaluation of ccf-nDNA abundance as a disease biomarker. Likewise, circulating, cell-free mitochondrial DNA (ccf-mtDNA) is under similar investigation. However, optimal ccf-mtDNA isolation parameters have not been established, and inconsistent protocols for ccf-nDNA collection, storage, and analysis have hindered its clinical utility. Until now, no studies have established a method for high-throughput isolation that considers both ccf-nDNA and ccf-mtDNA. We initially optimized human plasma digestion and extraction conditions for maximal recovery of these DNAs using a magnetic bead-based isolation method. However, when we incorporated this method onto a high-throughput platform, initial experiments found that DNA isolated from identical human plasma samples displayed plate edge effects resulting in low ccf-mtDNA reproducibility, whereas ccf-nDNA was less affected. Therefore, we developed a detailed protocol optimized for both ccf-mtDNA and ccf-nDNA recovery that uses a magnetic bead-based isolation process on an automated 96-well platform. Overall, we calculate an improved efficiency of recovery of ∼95-fold for ccf-mtDNA and 20-fold for ccf-nDNA when compared with the initial procedure. Digestion conditions, liquid-handling characteristics, and magnetic particle processor programming all contributed to increased recovery without detectable positional effects. To our knowledge, this is the first high-throughput approach optimized for ccf-mtDNA and ccf-nDNA recovery and serves as an important starting point for clinical studies.
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Affiliation(s)
- Sarah A Ware
- Center for Metabolism and Mitochondrial Medicine, Division of Cardiology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Nikita Desai
- Center for Metabolism and Mitochondrial Medicine, Division of Cardiology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Mabel Lopez
- Center for Metabolism and Mitochondrial Medicine, Division of Cardiology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Daniel Leach
- Optimize Laboratory Consultants, LLC, Lansdale, Pennsylvania, USA
| | - Yingze Zhang
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Luca Giordano
- Center for Metabolism and Mitochondrial Medicine, Division of Cardiology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Mehdi Nouraie
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Martin Picard
- Division of Behavioral Medicine, Departments of Psychiatry and Neurology, Columbia University Irving Medical Center, New York, New York, USA
| | - Brett A Kaufman
- Center for Metabolism and Mitochondrial Medicine, Division of Cardiology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.
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9
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Han LKM, Verhoeven JE, Tyrka AR, Penninx BWJH, Wolkowitz OM, Månsson KNT, Lindqvist D, Boks MP, Révész D, Mellon SH, Picard M. Accelerating research on biological aging and mental health: Current challenges and future directions. Psychoneuroendocrinology 2019; 106:293-311. [PMID: 31154264 PMCID: PMC6589133 DOI: 10.1016/j.psyneuen.2019.04.004] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 01/22/2019] [Accepted: 04/02/2019] [Indexed: 12/13/2022]
Abstract
Aging is associated with complex biological changes that can be accelerated, slowed, or even temporarily reversed by biological and non-biological factors. This article focuses on the link between biological aging, psychological stressors, and mental illness. Rather than comprehensively reviewing this rapidly expanding field, we highlight challenges in this area of research and propose potential strategies to accelerate progress in this field. This effort requires the interaction of scientists across disciplines - including biology, psychiatry, psychology, and epidemiology; and across levels of analysis that emphasize different outcome measures - functional capacity, physiological, cellular, and molecular. Dialogues across disciplines and levels of analysis naturally lead to new opportunities for discovery but also to stimulating challenges. Some important challenges consist of 1) establishing the best objective and predictive biological age indicators or combinations of indicators, 2) identifying the basis for inter-individual differences in the rate of biological aging, and 3) examining to what extent interventions can delay, halt or temporarily reverse aging trajectories. Discovering how psychological states influence biological aging, and vice versa, has the potential to create novel and exciting opportunities for healthcare and possibly yield insights into the fundamental mechanisms that drive human aging.
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Affiliation(s)
- Laura K M Han
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Psychiatry, Amsterdam Public Health Research Institute, Oldenaller 1, the Netherlands; Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Psychiatry, Amsterdam Neuroscience, De Boelelaan 1117, Amsterdam, the Netherlands
| | - Josine E Verhoeven
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Psychiatry, Amsterdam Public Health Research Institute, Oldenaller 1, the Netherlands
| | - Audrey R Tyrka
- Butler Hospital and the Department of Psychiatry and Human Behavior, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Brenda W J H Penninx
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Psychiatry, Amsterdam Public Health Research Institute, Oldenaller 1, the Netherlands; Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Psychiatry, Amsterdam Neuroscience, De Boelelaan 1117, Amsterdam, the Netherlands
| | - Owen M Wolkowitz
- Department of Psychiatry and Weill Institute for Neurosciences, University of California, San Francisco, School of Medicine, San Francisco, CA, USA
| | - Kristoffer N T Månsson
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden; Department of Psychology, Stockholm University, Stockholm, Sweden; Department of Psychology, Uppsala University, Uppsala, Sweden
| | - Daniel Lindqvist
- Faculty of Medicine, Department of Clinical Sciences, Psychiatry, Lund University, Lund, Sweden; Department of Psychiatry, University of California San Francisco (UCSF) School of Medicine, San Francisco, CA, USA; Psychiatric Clinic, Lund, Division of Psychiatry, Lund, Sweden
| | - Marco P Boks
- Brain Center Rudolf Magnus, Department of Psychiatry, University Medical Center Utrecht, the Netherlands
| | - Dóra Révész
- Center of Research on Psychology in Somatic diseases (CoRPS), Department of Medical and Clinical Psychology, Tilburg University, Tilburg, the Netherlands
| | - Synthia H Mellon
- Department of Psychiatry and Weill Institute for Neurosciences, University of California, San Francisco, School of Medicine, San Francisco, CA, USA
| | - Martin Picard
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Medical Center, New York, NY, USA; Department of Neurology, H. Houston Merritt Center, Columbia Translational Neuroscience Initiative, Columbia University Medical Center, New York, NY, USA; Columbia Aging Center, Columbia University, New York, NY, USA.
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10
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Trumpff C, Marsland AL, Basualto-Alarcón C, Martin JL, Carroll JE, Sturm G, Vincent AE, Mosharov EV, Gu Z, Kaufman BA, Picard M. Acute psychological stress increases serum circulating cell-free mitochondrial DNA. Psychoneuroendocrinology 2019; 106:268-276. [PMID: 31029929 PMCID: PMC6589121 DOI: 10.1016/j.psyneuen.2019.03.026] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 03/20/2019] [Accepted: 03/25/2019] [Indexed: 01/09/2023]
Abstract
Intrinsic biological mechanisms transduce psychological stress into physiological adaptation that requires energy, but the role of mitochondria and mitochondrial DNA (mtDNA) in this process has not been defined in humans. Here, we show that similar to physical injury, exposure to psychological stress increases serum circulating cell-free mtDNA (ccf-mtDNA) levels. Healthy midlife adults exposed on two separate occasions to a brief psychological challenge exhibited a 2-3-fold increase in ccf-mtDNA, with no change in ccf-nuclear DNA levels, establishing the magnitude and specificity for ccf-mtDNA reactivity. In cell-based studies, we show that glucocorticoid signaling - a consequence of psychological stress in humans - is sufficient to induce mtDNA extrusion in a time frame consistent with stress-induced ccf-mtDNA increase. Collectively, these findings provide evidence that acute psychological stress induces ccf-mtDNA and implicate neuroendocrine signaling as a potential trigger for ccf-mtDNA release. Further controlled work is needed to confirm that observed increases in ccf-mtDNA result from stress exposure and to determine the functional significance of this effect.
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Affiliation(s)
- Caroline Trumpff
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, NY, 10032, USA; New York State Psychiatric Institute, New York, NY, 10032, USA
| | - Anna L Marsland
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, 15260, USA.
| | - Carla Basualto-Alarcón
- Universidad de Aysén, Coyhaique, Chile; Anatomy and Legal Medicine Department, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - James L Martin
- Department of Medicine, Division of Cardiology, Vascular Medicine Institute, Center for Metabolism and Mitochondrial Medicine, University of Pittsburgh Medical School, Pittsburgh, PA, 15261, USA
| | - Judith E Carroll
- Cousins Center for Psychoneuroimmunology, Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, CA, 90095, USA
| | - Gabriel Sturm
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Amy E Vincent
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, NY, 10032, USA; Wellcome Trust Centre for Mitochondrial Research, Institute of Neurosciences, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK
| | - Eugene V Mosharov
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, NY, 10032, USA; New York State Psychiatric Institute, New York, NY, 10032, USA; Department of Neurology, H. Houston Merritt Center, Columbia Translational Neuroscience Initiative, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Zhenglong Gu
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, NY, 14850, USA
| | - Brett A Kaufman
- Department of Medicine, Division of Cardiology, Vascular Medicine Institute, Center for Metabolism and Mitochondrial Medicine, University of Pittsburgh Medical School, Pittsburgh, PA, 15261, USA.
| | - Martin Picard
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, NY, 10032, USA; New York State Psychiatric Institute, New York, NY, 10032, USA; Department of Neurology, H. Houston Merritt Center, Columbia Translational Neuroscience Initiative, Columbia University Irving Medical Center, New York, NY, 10032, USA; Columbia Aging Center, Columbia University Mailman School of Public Health, New York, NY, 10032, USA.
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11
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Abstract
BACKGROUND The integration of biological, psychological, and social factors in medicine has benefited from increasingly precise stress response biomarkers. Mitochondria, a subcellular organelle with its own genome, produce the energy required for life and generate signals that enable stress adaptation. An emerging concept proposes that mitochondria sense, integrate, and transduce psychosocial and behavioral factors into cellular and molecular modifications. Mitochondrial signaling might in turn contribute to the biological embedding of psychological states. METHODS A narrative literature review was conducted to evaluate evidence supporting this model implicating mitochondria in the stress response, and its implementation in behavioral and psychosomatic medicine. RESULTS Chronically, psychological stress induces metabolic and neuroendocrine mediators that cause structural and functional recalibrations of mitochondria, which constitutes mitochondrial allostatic load. Clinically, primary mitochondrial defects affect the brain, the endocrine system, and the immune systems that play a role in psychosomatic processes, suggesting a shared underlying mechanistic basis. Mitochondrial function and dysfunction also contribute to systemic physiological regulation through the release of mitokines and other metabolites. At the cellular level, mitochondrial signaling influences gene expression and epigenetic modifications, and modulates the rate of cellular aging. CONCLUSIONS This evidence suggests that mitochondrial allostatic load represents a potential subcellular mechanism for transducing psychosocial experiences and the resulting emotional responses-both adverse and positive-into clinically meaningful biological and physiological changes. The associated article in this issue of Psychosomatic Medicine presents a systematic review of the effects of psychological stress on mitochondria. Integrating mitochondria into biobehavioral and psychosomatic research opens new possibilities to investigate how psychosocial factors influence human health and well-being across the life-span.
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Affiliation(s)
- Martin Picard
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Medical Center, New York, NY 10032, USA
- Department of Neurology, The H. Houston Merritt Center, Columbia Translational Neuroscience Initiative, Columbia University Medical Center, New York, NY 10032, USA
- Columbia Aging Center, Columbia University, New York, NY 10032, USA
| | - Bruce S. McEwen
- Laboratory for Neuroendocrinology, The Rockefeller University, New York, NY 10065, USA
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12
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Phuong NTN, Manh DH, Dumre SP, Mizukami S, Weiss LN, Van Thuong N, Ha TTN, Phuc LH, Van An T, Tieu TM, Kamel MG, Morra ME, Huong VTQ, Huy NT, Hirayama K. Plasma cell-free DNA: a potential biomarker for early prediction of severe dengue. Ann Clin Microbiol Antimicrob 2019; 18:10. [PMID: 30871553 PMCID: PMC6419393 DOI: 10.1186/s12941-019-0309-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 02/22/2019] [Indexed: 12/30/2022] Open
Abstract
Background Considerable progress has been made in dengue management, however the lack of appropriate predictors of severity has led to huge number of unwanted admissions mostly decided on the grounds of warning signs. Apoptosis related mediators, among others, are known to correlate with severe dengue (SD) although no predictive validity is established. The objective of this study was to investigate the association of plasma cell-free DNA (cfDNA) with SD, and evaluate its prognostic value in SD prediction at acute phase. Methods This was a hospital-based prospective cohort study conducted in Vietnam. All the recruited patients were required to be admitted to the hospital and were strictly monitored for various laboratory and clinical parameters (including progression to SD) until discharged. Plasma samples collected during acute phase (6–48 h before defervescence) were used to estimate the level of cfDNA. Results Of the 61 dengue patients, SD patients (n = 8) developed shock syndrome in 4.8 days (95% CI 3.7–5.4) after the fever onset. Plasma cfDNA levels before the defervescence of SD patients were significantly higher than the non-SD group (p = 0.0493). From the receiver operating characteristic (ROC) curve analysis, a cut-off of > 36.9 ng/mL was able to predict SD with a good sensitivity (87.5%), specificity (54.7%), and area under the curve (AUC) (0.72, 95% CI 0.55–0.88; p = 0.0493). Conclusions Taken together, these findings suggest that cfDNA could serve as a potential prognostic biomarker of SD. Studies with cfDNA kinetics and its combination with other biomarkers and clinical parameters would further improve the diagnostic ability for SD. Electronic supplementary material The online version of this article (10.1186/s12941-019-0309-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Nguyen Thi Ngoc Phuong
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan.,Health Innovation Course, School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan
| | - Dao Huy Manh
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan.,Global Leader Nurturing Program, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Shyam Prakash Dumre
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Shusaku Mizukami
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Lan Nguyen Weiss
- Department of Immunology and Microbiology, Pasteur Institute, Ho Chi Minh City, Vietnam
| | - Nguyen Van Thuong
- Department of Immunology and Microbiology, Pasteur Institute, Ho Chi Minh City, Vietnam
| | - Tran Thi Ngoc Ha
- Department of Immunology and Microbiology, Pasteur Institute, Ho Chi Minh City, Vietnam
| | - Le Hong Phuc
- Nguyen Dinh Chieu Hospital, Ben Tre Province, Vietnam
| | - Tran Van An
- Nguyen Dinh Chieu Hospital, Ben Tre Province, Vietnam
| | - Thuan Minh Tieu
- Online research Club (www.onlineresearchclub.org/), Nagasaki, Japan.,Faculty of Health Sciences, McMaster University, Hamilton, Canada
| | - Mohamed Gomaa Kamel
- Online research Club (www.onlineresearchclub.org/), Nagasaki, Japan.,Faculty of Medicine, Minia University, Minia, Egypt
| | - Mostafa Ebraheem Morra
- Online research Club (www.onlineresearchclub.org/), Nagasaki, Japan.,Faculty of Medicine, Alazhar University, Cairo, 11884, Egypt
| | - Vu Thi Que Huong
- Department of Immunology and Microbiology, Pasteur Institute, Ho Chi Minh City, Vietnam
| | - Nguyen Tien Huy
- Evidence Based Medicine Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam. .,Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, 70000, Vietnam. .,Department of Clinical Product Development, Institute of Tropical Medicine (NEKKEN), School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, 852-8523, Japan.
| | - Kenji Hirayama
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan. .,Global Leader Nurturing Program, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan.
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13
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Manueldas S, Benterud T, Rueegg CS, Garberg HT, Huun MU, Pankratov L, Åsegg-Atneosen M, Solberg R, Escobar J, Saugstad OD, Baumbusch LO. Temporal patterns of circulating cell-free DNA (cfDNA) in a newborn piglet model of perinatal asphyxia. PLoS One 2018; 13:e0206601. [PMID: 30475817 PMCID: PMC6261042 DOI: 10.1371/journal.pone.0206601] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 10/16/2018] [Indexed: 12/18/2022] Open
Abstract
Perinatal asphyxia is a severe medical condition resulting from oxygen deficiency (hypoxia) at the time of birth, causing worldwide approximately 680,000 newborn deaths every year. Better prediction of severity of damages including early biomarkers is highly demanded. Elevated levels of circulating cell-free DNA (cfDNA) in blood have been reported for a range of different diseases and conditions, including cancer and prematurity. The objective of this study was to validate methods for assessing cfDNA in blood and cerebrospinal fluid (CSF) and to explore temporal variations in a piglet model of neonatal hypoxia-reoxygenation. Different cfDNA extraction methods in combination with cfDNA detection systems were tested, including a fluorescent assay using SYBR Gold and a qRT-PCR-based technique. Newborn piglets (n = 55) were exposed to hypoxia-reoxygenation, hypoxia-reoxygenation and hypothermia, or were part of the sham-operated control group. Blood was sampled at baseline and at post-intervention, further at 30, 270, and 570 minutes after the end of hypoxia. Applying the fluorescent method, cfDNA concentration in piglets exposed to hypoxia (n = 32) increased from 36.8±27.6 ng/ml prior to hypoxia to a peak level of 61.5±54.9 ng/ml after the intervention and deceased to 32.3±19.1 ng/ml at 570 minutes of reoxygenation, whereas the group of sham-operated control animals (n = 11) revealed a balanced cfDNA profile. Animals exposed to hypoxia and additionally treated with hypothermia (n = 12) expressed a cfDNA concentration of 54.4±16.9 ng/ml at baseline, 39.2±26.9 ng/ml at the end of hypoxia, and of 41.1±34.2 ng/ml at 570 minutes post-intervention. Concentrations of cfDNA in the CSF of piglets exposed to hypoxia revealed at post-intervention higher levels in comparison to the controls. However, these observations were only tendencies and not significant. In a first methodological proof-of-principle study exploring cfDNA using a piglet model of hypoxia-reoxygenation variations in the temporal patterns suggest that cfDNA might be an early indicator for damages caused by perinatal asphyxia.
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Affiliation(s)
- Sophia Manueldas
- Department of Pediatric Research, Division of Pediatric and Adolescent Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Torkil Benterud
- Department of Pediatric Research, Division of Pediatric and Adolescent Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway.,University of Oslo, Oslo, Norway
| | - Corina Silvia Rueegg
- Oslo Centre for Biostatistics and Epidemiology, Department of Biostatistics, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Håvard Tetlie Garberg
- Department of Pediatric Research, Division of Pediatric and Adolescent Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway.,University of Oslo, Oslo, Norway
| | - Marianne Ullestad Huun
- Department of Pediatric Research, Division of Pediatric and Adolescent Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway.,University of Oslo, Oslo, Norway
| | - Leonid Pankratov
- Department of Pediatric Research, Division of Pediatric and Adolescent Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway.,University of Oslo, Oslo, Norway
| | - Monica Åsegg-Atneosen
- Department of Pediatric Research, Division of Pediatric and Adolescent Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway.,University of Oslo, Oslo, Norway
| | - Rønnaug Solberg
- Department of Pediatric Research, Division of Pediatric and Adolescent Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway.,Department of Pediatrics, Vestfold Hospital Trust, Tønsberg, Norway
| | - Javier Escobar
- Department of Pediatric Research, Division of Pediatric and Adolescent Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Ola Didrik Saugstad
- Department of Pediatric Research, Division of Pediatric and Adolescent Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway.,University of Oslo, Oslo, Norway
| | - Lars Oliver Baumbusch
- Department of Pediatric Research, Division of Pediatric and Adolescent Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
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14
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Kageyama Y, Kasahara T, Kato M, Sakai S, Deguchi Y, Tani M, Kuroda K, Hattori K, Yoshida S, Goto Y, Kinoshita T, Inoue K, Kato T. The relationship between circulating mitochondrial DNA and inflammatory cytokines in patients with major depression. J Affect Disord 2018. [PMID: 28633757 DOI: 10.1016/j.jad.2017.06.001] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Although inflammatory cytokines are established biomarkers of mood disorders, their molecular mechanism is not known. We hypothesized that circulating mitochondrial DNA (mtDNA) contributes to inflammation and could be used as biomarkers. We investigated if circulating mtDNA level is associated with inflammatory cytokines and can be used as a biomarker of mood disorders. METHODS Plasma mtDNA concentration was measured with real-time quantitative PCR targeting two regions of the mtDNA and plasma levels of four cytokines (GM-CSF, IL-2, IL-4, and IL-6) were measured with a multiplex immunoassay method in 109 patients with major depressive disorder (MDD). The most significantly correlated cytokine was verified with an enzyme-linked immunosorbent assay (ELISA). The data from 28 patients with bipolar disorder (BD), 17 patients with schizophrenia (SZ), and 29 healthy controls were compared. RESULTS MtDNA levels showed a nominal positive correlation with GM-CSF, IL-2 and IL-4 in patients with MDD. The most significant correlation with IL-4 (ρ = 0.38, P < 0.00005) was verified with an ELISA (ρ = 0.19, P = 0.049). Unexpectedly, patients with MDD and BD showed significantly lower plasma mtDNA levels than controls. MtDNA levels were lower in the depressive state than in the euthymic state in patients with MDD. Patients with depression, bipolar disorder, and schizophrenia did not show significantly higher levels of these four cytokines than controls. LIMITATIONS There is a possibility that the patients in this study are different from previous studies in which increased cytokine levels were reported. MtDNA levels should be measured in patients showing elevated plasma cytokine levels. A larger sample is required to generalize the results. CONCLUSIONS The present findings coincide with our hypothesis that circulating mtDNA contributes to the inflammation in MDD. Further studies are needed to conclude whether plasma mtDNA would be a biomarker of mood disorders.
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Affiliation(s)
- Yuki Kageyama
- Laboratory for Molecular Dynamics of Mental Disorders, RIKEN Brain Science Institute, Saitama, Japan; Department of Neuropsychiatry, Osaka City University, Graduate School of Medicine, Osaka, Japan
| | - Takaoki Kasahara
- Laboratory for Molecular Dynamics of Mental Disorders, RIKEN Brain Science Institute, Saitama, Japan
| | - Masaki Kato
- Department of Neuropsychiatry, Kansai Medical University, Osaka, Japan
| | - Shiho Sakai
- Department of Neuropsychiatry, Kansai Medical University, Osaka, Japan
| | - Yasuhiko Deguchi
- Department of Neuropsychiatry, Osaka City University, Graduate School of Medicine, Osaka, Japan
| | | | - Kenji Kuroda
- Department of Psychiatry, Hannan Hospital, Osaka, Japan
| | - Kotaro Hattori
- Medical Genome Center, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Sumiko Yoshida
- Medical Genome Center, National Center of Neurology and Psychiatry, Tokyo, Japan; Department of Psychiatry, National Center of Neurology and Psychiatry Hospital, Tokyo, Japan
| | - Yuichi Goto
- Medical Genome Center, National Center of Neurology and Psychiatry, Tokyo, Japan
| | | | - Koki Inoue
- Department of Neuropsychiatry, Osaka City University, Graduate School of Medicine, Osaka, Japan
| | - Tadafumi Kato
- Laboratory for Molecular Dynamics of Mental Disorders, RIKEN Brain Science Institute, Saitama, Japan.
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15
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Abdullaev S, Minkabirova G, Karmanova E, Bruskov V, Gaziev A. Metformin prolongs survival rate in mice and causes increased excretion of cell-free DNA in the urine of X-irradiated rats. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2018; 831:13-18. [PMID: 29875072 DOI: 10.1016/j.mrgentox.2018.05.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 04/25/2018] [Accepted: 05/04/2018] [Indexed: 12/25/2022]
Abstract
An antidiabetic drug metformin has anticarcinogenic and geroprotective effects and has been used in combination with radiation cancer therapy. The present work is devoted to the study of the effect of metformin on survival in mice, the frequency of micronuclei in mouse bone marrow cells and excretion of cell-free nuclear and mitochondrial DNA in the urine of X-ray-exposed rats. The survival rate and the frequency of micronuclei in mice and excretion of DNA into rat urine were determined after administration of the drug before and after irradiation of animals. The DNA content was measured by qRT-PCR. Metformin shows a radioprotective effect only when administered to mice after the radiation exposure. On the 11th day after irradiation, we observed 100% mortality in the control group; 78% of mice remained alive if metformin was given. Twenty percent of the mice in this group survived for 30 days after irradiation. Metformin has the same effect on the frequency of micronuclei; its reduction is observed, when the drug is administered to the mice after irradiation. Metformin promotes the excretion of nuclear and mitochondrial DNA with the urine of irradiated rats. The results show that metformin acts as a radiomitigation effector. Metformin promotes the active excretion of DNA of dying cells from the tissues of irradiated animals.
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Affiliation(s)
- Serazhutdin Abdullaev
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russian Federation.
| | - Gulchachak Minkabirova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russian Federation.
| | - Ekaterina Karmanova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russian Federation; Pushchino State Institute of Natural Sciences, Pushchino, Moscow Region, 142290, Russian Federation.
| | - Vadim Bruskov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russian Federation; Pushchino State Institute of Natural Sciences, Pushchino, Moscow Region, 142290, Russian Federation.
| | - Azhub Gaziev
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russian Federation.
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16
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Effect of caloric restriction and subsequent re-alimentation on oxidative stress in the liver of Hu sheep ram lambs. Anim Feed Sci Technol 2018. [DOI: 10.1016/j.anifeedsci.2018.01.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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17
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cfDNA correlates with endothelial damage after cardiac surgery with prolonged cardiopulmonary bypass and amplifies NETosis in an intracellular TLR9-independent manner. Sci Rep 2017; 7:17421. [PMID: 29234042 PMCID: PMC5727170 DOI: 10.1038/s41598-017-17561-1] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 11/28/2017] [Indexed: 12/02/2022] Open
Abstract
Cardiopulmonary bypass (CPB) provokes inflammation culminating in organ dysfunction and increased mortality. Recently, neutrophil extracellular traps (NETs) have been found to be involved in a variety of cardiovascular diseases promoting tissue and organ injury. Here, we aimed to elaborate the proinflammatory potential of circulating cell-free (cf)DNA in patients undergoing cardiac surgery with CPB. Plasma was collected pre- and postoperatively as well as at d1, d3, d5 and d8 after surgery. At d1, we found circulating cfDNA levels to be significantly increased in patients with prolonged CPB duration (>100 min) when compared to those with shorter CPB times (CPB < 100 min). Increased CPB duration yielded in higher levels of circulating mitochondrial (mt)DNA, soluble thrombomodulin (sCD141) and ICAM-1, reflecting endothelial damage. Positive correlation between cfDNA and sCD141 was demonstrated at all time points. Plasma and cfDNA from patients with CPB > 100 min induced NETs release by neutrophils from healthy donors which was not suppressed by inhibitors of intracellular toll-like receptor (TLR)9. DNA binding to neutrophils’ surface (s)TLR9 has been evidenced. Altogether, we demonstrate that elevated plasma cfDNA might be useful to assess CPB-mediated detrimental effects, including endothelial damage, in cardiac surgical patients with prolonged CPB duration. cfDNA-triggered NETosis is independent of classical TLR9 signaling.
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18
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Gaziev A, Abdullaev S, Minkabirova G, Kamenskikh K. X-rays and metformin cause increased urinary excretion of cell-free nuclear and mitochondrial DNA in aged rats. J Circ Biomark 2017; 5:1849454416670782. [PMID: 28936265 PMCID: PMC5548319 DOI: 10.1177/1849454416670782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 09/01/2016] [Indexed: 11/18/2022] Open
Abstract
Activation of cell death in mammals can be assessed by an increase of an amount of cell-free DNA (cf-DNA) in urine or plasma. We investigated the excretion of cf nuclear DNA (nDNA) and cf mitochondrial DNA (mtDNA) in the urine of rats 3 and 24 months in age after X-irradiation and metformin administration. Analyses showed that prior to treatment, the amount of cf-nDNA was 40% higher and cf-mtDNA was 50% higher in the urine of aged rats compared to that of young animals. At 12 h after irradiation, the content of cf-nDNA and cf-mtDNA in the urine of young rats was increased by 200% and 460%, respectively, relative to the control, whereas in the urine of aged rats, it was 250% and 720% higher. After 6 h following metformin administration, the amount of cf-nDNA and cf-mtDNA in the urine of young rats was elevated by 25% and 55% and by 50% and 160% in the urine of aged rats. Thus, these preliminary data suggest that X-rays and metformin cause a significant increase of cf-DNA in the urine of older rats caused by the active cell death in tissues. These results also suggest that metformin possibly initiates the death of the cells containing structural and functional abnormalities.
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Affiliation(s)
- Azhub Gaziev
- Institute of Theoretical and Experimental Biophysics, RAS, Pushino, Moscow Region, Russia
| | - Serazhutdin Abdullaev
- Institute of Theoretical and Experimental Biophysics, RAS, Pushino, Moscow Region, Russia
| | - Gulchachak Minkabirova
- Institute of Theoretical and Experimental Biophysics, RAS, Pushino, Moscow Region, Russia
| | - Kristina Kamenskikh
- Institute of Theoretical and Experimental Biophysics, RAS, Pushino, Moscow Region, Russia
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19
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Disatnik MH, Joshi AU, Saw NL, Shamloo M, Leavitt BR, Qi X, Mochly-Rosen D. Potential biomarkers to follow the progression and treatment response of Huntington's disease. J Exp Med 2016; 213:2655-2669. [PMID: 27821553 PMCID: PMC5110026 DOI: 10.1084/jem.20160776] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 08/16/2016] [Accepted: 09/29/2016] [Indexed: 12/21/2022] Open
Abstract
Disatnik et al. identify mitochondrial DNA levels, 8-OHdG, and inflammation factors as potential peripheral biomarkers to follow progression and treatment response of Huntington’s disease. Huntington’s disease (HD) is a rare genetic disease caused by expanded polyglutamine repeats in the huntingtin protein resulting in selective neuronal loss. Although genetic testing readily identifies those who will be affected, current pharmacological treatments do not prevent or slow down disease progression. A major challenge is the slow clinical progression and the inability to biopsy the affected tissue, the brain, making it difficult to design short and effective proof of concept clinical trials to assess treatment benefit. In this study, we focus on identifying peripheral biomarkers that correlate with the progression of the disease and treatment benefit. We recently developed an inhibitor of pathological mitochondrial fragmentation, P110, to inhibit neurotoxicity in HD. Changes in levels of mitochondrial DNA (mtDNA) and inflammation markers in plasma, a product of DNA oxidation in urine, mutant huntingtin aggregates, and 4-hydroxynonenal adducts in muscle and skin tissues were all noted in HD R6/2 mice relative to wild-type mice. Importantly, P110 treatment effectively reduced the levels of these biomarkers. Finally, abnormal levels of mtDNA were also found in plasma of HD patients relative to control subjects. Therefore, we identified several potential peripheral biomarkers as candidates to assess HD progression and the benefit of intervention for future clinical trials.
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Affiliation(s)
- Marie-Hélène Disatnik
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA 94305
| | - Amit U Joshi
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA 94305
| | - Nay L Saw
- Behavioral and Functional Neuroscience Laboratory, Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA 94305
| | - Mehrdad Shamloo
- Behavioral and Functional Neuroscience Laboratory, Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA 94305
| | - Blair R Leavitt
- Centre for Molecular Medicine and Therapeutics, Department of Medical Genetics, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Xin Qi
- Department of Physiology and Biophysics, Case Western Reserve University School of Medicine, Cleveland, OH 44106
| | - Daria Mochly-Rosen
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA 94305
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20
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Mahmoud EH, Fawzy A, Ahmad OK, Ali AM. Plasma Circulating Cell-free Nuclear and Mitochondrial DNA as Potential Biomarkers in the Peripheral Blood of Breast Cancer Patients. Asian Pac J Cancer Prev 2016; 16:8299-305. [PMID: 26745076 DOI: 10.7314/apjcp.2015.16.18.8299] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND In Egypt, breast cancer is estimated to be the most common cancer among females. It is also a leading cause of cancer-related mortality. Use of circulating cell-free DNA (ccf-DNA) as non-invasive biomarkers is a promising tool for diagnosis and follow-up of breast cancer (BC) patients. OBJECTIVE To assess the role of circulating cell free DNA (nuclear and mitochondrial) in diagnosing BC. MATERIALS AND METHODS Multiplex real time PCR was used to detect the level of ccf nuclear and mitochondrial DNA in the peripheral blood of 50 breast cancer patients together with 30 patients with benign lesions and 20 healthy controls. Laboratory investigations, histopathological staging and receptor studies were carried out for the cancer group. Receiver operating characteristic curves were used to evaluate the performance of ccf-nDNA and mtDNA. RESULTS The levels of both nDNA and mtDNA in the cancer group were significantly higher in comparison to the benign and the healthy control group. There was a statistically significant association between nDNA and mtDNA levels and well established prognostic parameters; namely, histological grade, tumour stage, lymph node status andhormonal receptor status. CONCLUSIONS Our data suggests that nuclear and mitochondrial ccf-DNA may be used as non-invasive biomarkers in BC.
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Affiliation(s)
- Enas H Mahmoud
- Clinical and Chemical Pathology Department, Faculty of Medicine, Cairo University, Cairo, Egypt E-mail :
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21
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Abdelal IT, Zakaria MA, Sharaf DM, Elakad GM. Levels of plasma cell-free DNA and its correlation with disease activity in rheumatoid arthritis and systemic lupus erythematosus patients. EGYPTIAN RHEUMATOLOGIST 2016. [DOI: 10.1016/j.ejr.2016.06.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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22
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Hendy OM, Motalib TA, El Shafie MA, Khalaf FA, Kotb SE, Khalil A, Ali SR. Circulating cell free DNA as a predictor of systemic lupus erythematosus severity and monitoring of therapy. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2016. [DOI: 10.1016/j.ejmhg.2015.07.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
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23
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Stertz L, Fries GR, Rosa AR, Kauer-Sant'anna M, Ferrari P, Paz AVC, Green C, Cunha ÂBM, Dal-Pizzol F, Gottfried C, Kapczinski F. Damage-associated molecular patterns and immune activation in bipolar disorder. Acta Psychiatr Scand 2015; 132:211-7. [PMID: 25891376 DOI: 10.1111/acps.12417] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/09/2015] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Immune activation in bipolar disorder (BD) has been frequently reported. Damage-associated molecular patterns (DAMPs) are key players in the immune activation reaction. The aim of this study was to assess DAMP levels in drug-free patients with BD during acute episodes. METHOD Serum levels of a predetermined set of DAMPs were assessed in drug-free patients with BD (n = 20) during an acute mood episode. We also included two control groups: healthy subjects, used as a negative control (n = 20); and patients with sepsis, used as a positive control for severe immune activation (n = 20). RESULTS Multivariate analysis using generalized linear mixed model indicated that all DAMPs differed as a function of group membership after controlling for age and addressing multiplicity (P < 0.0006 for all comparisons). Follow-up analyses showed higher levels in BD subjects of circulating cell-free (ccf) nuclear (n)DNA (P = 0.02), HSP70 (P = 0.03) and HSP90α (P = 0.02) as compared to healthy subjects. Also, patients with BD showed lower levels of ccf nDNA (P = 0.04), HSP60 (P = 0.03), HSP70 (P = 0.01), and HSP90α (P = 0.002) as compared to patients with sepsis and higher levels of ccf mitochondrial DNA (P < 0.0001). CONCLUSION The present findings may be linked to the inflammatory activity previously described among patients with BD and may help in the development of more targeted and personalized treatments for patients under acute episodes of BD.
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Affiliation(s)
- L Stertz
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre, BRA.,Bipolar Disorder Program & INCT Translational Medicine, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Department of Psychiatry and Behavioral Sciences, Center for Molecular Psychiatry, University of Texas Health Science Center, Houston, TX, USA
| | - G R Fries
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre, BRA.,Bipolar Disorder Program & INCT Translational Medicine, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - A R Rosa
- Bipolar Disorder Program & INCT Translational Medicine, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Department of Pharmacology, Basic Science Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - M Kauer-Sant'anna
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre, BRA.,Bipolar Disorder Program & INCT Translational Medicine, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - P Ferrari
- Bipolar Disorder Program & INCT Translational Medicine, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - A V C Paz
- Bipolar Disorder Program & INCT Translational Medicine, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - C Green
- Department of Pediatrics, Center for Clinical Research and Evidence-Based Medicine, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Â B M Cunha
- Department of Pharmacology, Basic Science Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Department of Neuropsychiatry, Centro de Ciências da Saude, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - F Dal-Pizzol
- Laboratorio de FisiopatologiaExperimental, Unidade Academica de Ciencias da Saude, Universidade do Extremo Sul Catarinense, Criciuma, SC, USA
| | - C Gottfried
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre, BRA
| | - F Kapczinski
- Bipolar Disorder Program & INCT Translational Medicine, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Department of Psychiatry and Behavioral Sciences, Center for Molecular Psychiatry, University of Texas Health Science Center, Houston, TX, USA
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Abdullaev SA, Minkabirova GM, Bezlepkin VG, Gaziev AI. Cell-free DNA in the urine of rats exposed to ionizing radiation. RADIATION AND ENVIRONMENTAL BIOPHYSICS 2015; 54:297-304. [PMID: 25935210 DOI: 10.1007/s00411-015-0599-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Accepted: 04/27/2015] [Indexed: 06/04/2023]
Abstract
Investigation of cell-free DNA (cf-DNA) in body fluids, as a potential biomarker for assessing the effect of ionizing radiation on the organism, is of considerable interest. We investigated changes in the contents of cell-free mitochondrial DNA (cf-mtDNA) and cell-free nuclear DNA (cf-nDNA) in the urine of X-ray-exposed rats. Assays of cf-mtDNA and cf-nDNA were performed by a real-time PCR in rat urine collected before and after irradiation of animals with doses of 3 and 5 Gy. We also determined the presence of mutations in urine cf-mtDNA, as recognized by Surveyor nuclease. A sharp increase in cf-mtDNA and cf-nDNA in the urine of irradiated rats was observed within 24 h after exposure, followed by a decrease to normal levels. In all cases, the contents of cf-mtDNA fragment copies (estimated by gene tRNA) were significantly higher than those of cf-nDNA estimated by gene GAPDH. A certain portion of mutant cf-mtDNA fragments was detected in the urine of exposed rats, whereas they were absent in the urine of the same animals before irradiation. These preliminary data also suggest that the increased levels of urine cf-mtDNA and cf-nDNA may be a potential biomarker for noninvasive assessment of how the organism responds to ionizing radiation influence.
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Affiliation(s)
- Serazhutdin A Abdullaev
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Science (RAS), Pushchino, Moscow Region, 142290, Russia,
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Xia P, Wang HJ, Geng TT, Xun XJ, Zhou WJ, Jin TB, Chen C. Mitochondrial DNA levels in blood and tissue samples from breast cancer patients of different stages. Asian Pac J Cancer Prev 2014; 15:1339-44. [PMID: 24606462 DOI: 10.7314/apjcp.2014.15.3.1339] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
AIMS Alterations in mitochondrial DNA (mtDNA) have been implicated in carcinogenesis and tumor progression. We here evaluated the diagnostic and prognostic potential of mtDNA as a biomarker for breast cancer. METHODS Using multiplex real-time polymerase chain reaction, nuclear DNA (nDNA) and mtDNA levels in serum, buffy coat, tumor, and tumor-adjacent tissue samples from 50 breast cancer patients were determined and assessed for associations with clinicopathological features. To evaluate mtDNA as a biomarker for distinguishing between the four sample types, we created receiver operating characteristic (ROC) curves. RESULTS The mtDNA levels in buffy coat were significantly lower than in other sample types. Relative to tumor-adjacent tissue, reduced levels of mtDNA were identified in buffy coat and tumor tissue but not in serum. According to ROC curve analysis, mtDNA levels could be used to distinguish between buffy coat and tumor-adjacent tissue samples with good sensitivity (77%) and specificity (83%). Moreover, mtDNA levels in serum and tumor tissue were positively associated with cancer TMN stage. CONCLUSIONS The mtDNA levels in blood samples may represent a promising, non-invasive biomarker in breast cancer patients. Additional, large-scale validation studies are required to establish the potential use of mtDNA levels in the early diagnosis and monitoring of breast cancer.
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Affiliation(s)
- Peng Xia
- Department of Oncology Surgery, First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China E-mail : ,
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26
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Kampira E, Dzobo K, Kumwenda J, van Oosterhout JJ, Parker MI, Dandara C. Peripheral blood mitochondrial DNA/nuclear DNA (mtDNA/nDNA) ratio as a marker of mitochondrial toxicities of stavudine containing antiretroviral therapy in HIV-infected Malawian patients. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2014; 18:438-45. [PMID: 24816082 DOI: 10.1089/omi.2014.0026] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Mitochondrial toxicity is a major concern related to nucleoside reverse transcriptase inhibitors. Common manifestations are peripheral neuropathy and lipodystrophy. Depletion of mitochondria has been associated with mitochondrial dysfunction. We investigated whether mitochondria DNA (mtDNA) levels in peripheral blood can be used as biomarker of stavudine-associated mitochondrial toxicities. We enrolled 203 HIV-infected Malawian adult patients on stavudine-containing ART and 64 healthy controls of Bantu origin in a cross-sectional study. Total DNA was extracted from whole blood.The glyceraldehyde-3-phosphate dehydrogenase gene was used to estimate nuclear DNA (nDNA) levels and the ATP synthase-8 mitochondrial DNA gene to estimate mtDNA levels, from which mtDNA/nDNA ratios were determined. MtDNA subhaplogroups were established by sequencing. Among patients, peripheral neuropathy was present in 21% (43/203), lipodystrophy in 18% (20/112), elevated lactate level (>2.5 mmol/L) in 17% (19/113). Healthy controls had a higher median mtDNA/nDNA ratio when compared to HIV/AIDS patients (6.64 vs. 5.08; p=0.05), patients presenting with peripheral neuropathy (6.64 vs. 3.40, p=0.039), and patients with high lactate levels (6.64 vs. 0.68, p=0.024), respectively. Significant differences in median mtDNA/nDNA ratios were observed between patients with high and normal lactate levels (5.88 vs. 0.68, p=0.018). The median mtDNA/nDNA ratio of patients in subhaplogroup L0a2 was much lower (0.62 vs. 8.50, p=0.01) than that of those in subhaplogroup L2a. Our data indicate that peripheral blood mtDNA/nDNA ratio is a marker of mitochondrial toxicities of stavudine and is associated with elevated lactate levels and mtDNA subhaplogroups. This could open the prospect to select a substantial group of patients who will not have problematic side effects from stavudine, an affordable and effective antiretroviral drug that is being phased out in Africa due to its toxicity.
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Affiliation(s)
- Elizabeth Kampira
- 1 Division of Human Genetics, University of Cape Town , Cape Town, South Africa
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27
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Ha TTN, Huy NT, Murao LA, Lan NTP, Thuy TT, Tuan HM, Nga CTP, Tuong VV, Dat TV, Kikuchi M, Yasunami M, Morita K, Huong VTQ, Hirayama K. Elevated levels of cell-free circulating DNA in patients with acute dengue virus infection. PLoS One 2011; 6:e25969. [PMID: 22016795 PMCID: PMC3189230 DOI: 10.1371/journal.pone.0025969] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Accepted: 09/14/2011] [Indexed: 11/24/2022] Open
Abstract
Background Apoptosis is thought to play a role in the pathogenesis of severe dengue and the release of cell-free DNA into the circulatory system in several medical conditions. Therefore, we investigated circulating DNA as a potential biomarker for severe dengue. Methods and Findings A direct fluorometric degradation assay using PicoGreen was performed to quantify cell-free DNA from patient plasma. Circulating DNA levels were significantly higher in patients with dengue virus infection than with other febrile illnesses and healthy controls. Remarkably, the increase of DNA levels correlated with the severity of dengue. Additionally, multivariate logistic regression analysis showed that circulating DNA levels independently correlated with dengue shock syndrome. Conclusions Circulating DNA levels were increased in dengue patients and correlated with dengue severity. Additional studies are required to show the benefits of this biomarker in early dengue diagnosis and for the prognosis of shock complication.
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Affiliation(s)
- Tran Thi Ngoc Ha
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Nguyen Tien Huy
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Lyre Anni Murao
- Department of Virology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | | | - Tran Thi Thuy
- Children's Hospital No. 2, Ho Chi Minh City, Vietnam
| | - Ha Manh Tuan
- Children's Hospital No. 2, Ho Chi Minh City, Vietnam
| | | | - Vo Van Tuong
- Center for Preventive Medicine, Vinh Long, Vietnam
| | - Tran Van Dat
- Center for Preventive Medicine, Vinh Long, Vietnam
| | - Mihoko Kikuchi
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Michio Yasunami
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Kouichi Morita
- Department of Virology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Vu Thi Que Huong
- Laboratory of Arbovirus, Pasteur Institute, Ho Chi Minh City, Vietnam
| | - Kenji Hirayama
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
- Global COE program, Nagasaki University, Nagasaki, Japan
- * E-mail:
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Arnalich F, López-Collazo E, Montiel C. Diagnostic potential of circulating cell-free DNA in patients needing mechanical ventilation: promises and challenges. Crit Care 2011; 15:187. [PMID: 21978490 PMCID: PMC3334737 DOI: 10.1186/cc10365] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Circulating cell-free DNA (cf-DNA) mainly comes from apoptotic cells and can reflect the extent of cellular damage. Increased plasma levels of cf-DNA have been found in many acute disorders, including septic and clinically ill patients, and usually correlate well with clinical outcome. Acute respiratory failure, the most frequent organ failure in ICU patients, can be related to various acute diseases that may cause cell death and release of DNA into the bloodstream. In a recent issue of Critical Care, Okkonen and colleagues evaluate levels of cf-DNA in plasma as a prognostic marker in patients needing mechanical ventilation. They report that plasma cf-DNA was higher than normal in patients with mechanical ventilation, and even higher in patients who eventually died compared to survivors. However, its usefulness as a death predictor may be limited in the heterogeneous group of mechanically ventilated patients, probably due to confounding effects of co-morbidities, among other factors.
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Affiliation(s)
- Francisco Arnalich
- Emergency Medicine and Internal Medicine Service, Hospital Universitario La Paz, IdiPAZ, Paseo de Castellana 261, 28046 Madrid, Spain.
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Barekati Z, Radpour R, Kohler C, Zhang B, Toniolo P, Lenner P, Lv Q, Zheng H, Zhong XY. Methylation profile of TP53 regulatory pathway and mtDNA alterations in breast cancer patients lacking TP53 mutations. Hum Mol Genet 2010; 19:2936-46. [PMID: 20466735 DOI: 10.1093/hmg/ddq199] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The present study investigated promoter hypermethylation of TP53 regulatory pathways providing a potential link between epigenetic changes and mitochondrial DNA (mtDNA) alterations in breast cancer patients lacking a TP53 mutation. The possibility of using the cancer-specific alterations in serum samples as a blood-based test was also explored. Triple-matched samples (cancerous tissues, matched adjacent normal tissues and serum samples) from breast cancer patients were screened for TP53 mutations, and the promoter methylation profile of P14(ARF), MDM2, TP53 and PTEN genes was analyzed as well as mtDNA alterations, including D-loop mutations and mtDNA content. In the studied cohort, no mutation was found in TP53 (DNA-binding domain). Comparison of P14(ARF) and PTEN methylation patterns showed significant hypermethylation levels in tumor tissues (P < 0.05 and <0.01, respectively) whereas the TP53 tumor suppressor gene was not hypermethylated (P < 0.511). The proportion of PTEN methylation was significantly higher in serum than in the normal tissues and it has a significant correlation to tumor tissues (P < 0.05). mtDNA analysis revealed 36.36% somatic and 90.91% germline mutations in the D-loop region and also significant mtDNA depletion in tumor tissues (P < 0.01). In addition, the mtDNA content in matched serum was significantly lower than in the normal tissues (P < 0.05). These data can provide an insight into the management of a therapeutic approach based on the reversal of epigenetic silencing of the crucial genes involved in regulatory pathways of the tumor suppressor TP53. Additionally, release of significant aberrant methylated PTEN in matched serum samples might represent a promising biomarker for breast cancer.
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Affiliation(s)
- Zeinab Barekati
- Laboratory for Gynecological Oncology, Women's Hospital/Department of Biomedicine, University of Basel, Switzerland
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Kohler C, Radpour R, Barekati Z, Asadollahi R, Bitzer J, Wight E, Bürki N, Diesch C, Holzgreve W, Zhong XY. Levels of plasma circulating cell free nuclear and mitochondrial DNA as potential biomarkers for breast tumors. Mol Cancer 2009; 8:105. [PMID: 19922604 PMCID: PMC2780981 DOI: 10.1186/1476-4598-8-105] [Citation(s) in RCA: 167] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2009] [Accepted: 11/17/2009] [Indexed: 12/14/2022] Open
Abstract
Background With the aim to simplify cancer management, cancer research lately dedicated itself more and more to discover and develop non-invasive biomarkers. In this connection, circulating cell-free DNA (ccf DNA) seems to be a promising candidate. Altered levels of ccf nuclear DNA (nDNA) and mitochondrial DNA (mtDNA) have been found in several cancer types and might have a diagnostic value. Methods Using multiplex real-time PCR we investigated the levels of ccf nDNA and mtDNA in plasma samples from patients with malignant and benign breast tumors, and from healthy controls. To evaluate the applicability of plasma ccf nDNA and mtDNA as a biomarker for distinguishing between the three study-groups we performed ROC (Receiver Operating Characteristic) curve analysis. We also compared the levels of both species in the cancer group with clinicopathological parameters. Results While the levels of ccf nDNA in the cancer group were significantly higher in comparison with the benign tumor group (P < 0.001) and the healthy control group (P < 0.001), the level of ccf mtDNA was found to be significantly lower in the two tumor-groups (benign: P < 0.001; malignant: P = 0.022). The level of ccf nDNA was also associated with tumor-size (<2 cm vs. >2 cm<5 cm; 2250 vs. 6658; Mann-Whitney-U-Test: P = 0.034). Using ROC curve analysis, we were able to distinguish between the breast cancer cases and the healthy controls using ccf nDNA as marker (cut-off: 1866 GE/ml; sensitivity: 81%; specificity: 69%; P < 0.001) and between the tumor group and the healthy controls using ccf mtDNA as marker (cut-off: 463282 GE/ml; sensitivity: 53%; specificity: 87%; P < 0.001). Conclusion Our data suggests that nuclear and mitochondrial ccf DNA have potential as biomarkers in breast tumor management. However, ccf nDNA shows greater promise regarding sensitivity and specificity.
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Affiliation(s)
- Corina Kohler
- Laboratory for Prenatal Medicine and Gynecologic Oncology, Women's Hospital/Department of Biomedicine, University of Basel, Switzerland
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Kohler C, Radpour R, Barekati Z, Asadollahi R, Bitzer J, Wight E, Bürki N, Diesch C, Holzgreve W, Zhong XY. Levels of plasma circulating cell free nuclear and mitochondrial DNA as potential biomarkers for breast tumors. Mol Cancer 2009. [PMID: 19922604 DOI: 10.1186/1476‐4598‐8‐105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND With the aim to simplify cancer management, cancer research lately dedicated itself more and more to discover and develop non-invasive biomarkers. In this connection, circulating cell-free DNA (ccf DNA) seems to be a promising candidate. Altered levels of ccf nuclear DNA (nDNA) and mitochondrial DNA (mtDNA) have been found in several cancer types and might have a diagnostic value. METHODS Using multiplex real-time PCR we investigated the levels of ccf nDNA and mtDNA in plasma samples from patients with malignant and benign breast tumors, and from healthy controls. To evaluate the applicability of plasma ccf nDNA and mtDNA as a biomarker for distinguishing between the three study-groups we performed ROC (Receiver Operating Characteristic) curve analysis. We also compared the levels of both species in the cancer group with clinicopathological parameters. RESULTS While the levels of ccf nDNA in the cancer group were significantly higher in comparison with the benign tumor group (P < 0.001) and the healthy control group (P < 0.001), the level of ccf mtDNA was found to be significantly lower in the two tumor-groups (benign: P < 0.001; malignant: P = 0.022). The level of ccf nDNA was also associated with tumor-size (<2 cm vs. >2 cm<5 cm; 2250 vs. 6658; Mann-Whitney-U-Test: P = 0.034). Using ROC curve analysis, we were able to distinguish between the breast cancer cases and the healthy controls using ccf nDNA as marker (cut-off: 1866 GE/ml; sensitivity: 81%; specificity: 69%; P < 0.001) and between the tumor group and the healthy controls using ccf mtDNA as marker (cut-off: 463282 GE/ml; sensitivity: 53%; specificity: 87%; P < 0.001). CONCLUSION Our data suggests that nuclear and mitochondrial ccf DNA have potential as biomarkers in breast tumor management. However, ccf nDNA shows greater promise regarding sensitivity and specificity.
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Affiliation(s)
- Corina Kohler
- Laboratory for Prenatal Medicine and Gynecologic Oncology, Women's Hospital/Department of Biomedicine, University of Basel, Switzerland
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