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Korabecna M, Zinkova A, Brynychova I, Chylikova B, Prikryl P, Sedova L, Neuzil P, Seda O. Cell-free DNA in plasma as an essential immune system regulator. Sci Rep 2020; 10:17478. [PMID: 33060738 PMCID: PMC7566599 DOI: 10.1038/s41598-020-74288-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 09/04/2020] [Indexed: 02/08/2023] Open
Abstract
The cell-free DNA (cfDNA) is always present in plasma, and it is biomarker of growing interest in prenatal diagnostics as well as in oncology and transplantology for therapy efficiency monitoring. But does this cfDNA have a physiological role? Here we show that cfDNA presence and clearance in plasma of healthy individuals plays an indispensable role in immune system regulation. We exposed THP1 cells to healthy individuals' plasma with (NP) and without (TP) cfDNA. In cells treated with NP, we found elevated expression of genes whose products maintain immune system homeostasis. Exposure of cells to TP triggered an innate immune response (IIR), documented particularly by elevated expression of pro-inflammatory interleukin 8. The results of mass spectrometry showed a higher abundance of proteins associated with IIR activation due to the regulation of complement cascade in cells cultivated with TP. These expression profiles provide evidence that the presence of cfDNA and its clearance in plasma of healthy individuals regulate fundamental mechanisms of the inflammation process and tissue homeostasis. The detailed understanding how neutrophil extracellular traps and their naturally occurring degradation products affect the performance of immune system is of crucial interest for future medical applications.
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Affiliation(s)
- M Korabecna
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Albertov 4, 128 00, Prague, Czech Republic.
| | - A Zinkova
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Albertov 4, 128 00, Prague, Czech Republic
| | - I Brynychova
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Albertov 4, 128 00, Prague, Czech Republic
- Department of Anthropology and Human Genetics, Faculty of Science, Charles University, Prague, Czech Republic
| | - B Chylikova
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Albertov 4, 128 00, Prague, Czech Republic
| | - P Prikryl
- First Faculty of Medicine, Institute of Pathological Physiology, Charles University, Prague, Czech Republic
| | - L Sedova
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Albertov 4, 128 00, Prague, Czech Republic
| | - P Neuzil
- Department of Microsystem Engineering, School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, People's Republic of China
- CEITEC, Brno University of Technology, Brno, Czech Republic
| | - O Seda
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Albertov 4, 128 00, Prague, Czech Republic
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Skolnikova E, Sedova L, Krenova D, Kren V, Seda O. Early life programming with sucrose interferes with lipid profiles of SHR rats in two subsequent generations. Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Skolnikova E, Sedova L, Krenova D, Kren V, Seda O. Mutation in ZBTB16 gene plays a role in lipid profiles of pregnant rats and their offspring after high-sucrose diet feeding. Atherosclerosis 2017. [DOI: 10.1016/j.atherosclerosis.2017.06.136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Hubacek JA, Adamkova V, Sedova L, Olisarova V, Tothova V. Adult type associated lactase persistence genotypes in Czech and Roma/Gypsy populations. Eur J Public Health 2016. [DOI: 10.1093/eurpub/ckw175.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Stolfa J, Sedova L. SAT0398 Application of Disease Activity Index for Psoriatic Arthritis (DAPSA) in A Cohort of Patients Followed in The Institute of Rheumatology Prague. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.4227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Sedova L, Stolfa J, Hejduk K, Uher M. AB0774 Depression in Patients with Ankylosing Spondylitis and its Relationship to Some Clinical and Demographic Data. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Jancova E, Hruskova Z, Lanska V, Svojanovsky J, Sedova L, Zamboch K, Klaboch J, Kodeda M, Hanzal V, Jílek D, Valkovsky I, Tesar V. SAT0265 Characteristics and Outcomes of Patients with Anca-Associated Vasculitis (AAV) in the Czech Population. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.5777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Stolfa J, Sedova L, Hejduk K, Uher M. AB0749 Effect of Biological Therapy on Fatigue on Patients with Psoriatic Arthritis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Krupkova M, Janku M, Liska F, Sedova L, Hodulova M, Krenova D, Kren V, Seda O. Abstract 432: Modification of Lipid Spectrum and Skeletal Muscle Transcriptome Due to Pharmacogenetic Interaction of Retinoic Acid With Rat Chromosome 8. Arterioscler Thromb Vasc Biol 2014. [DOI: 10.1161/atvb.34.suppl_1.432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Polydactylous rat strain PD/Cub and spontaneously hypertensive rat SHR are two established rodent models of human metabolic syndrome. In the process of positional cloning of apparently pleiotropic locus on rat chromosome 8 affecting major features of metabolic syndrome including dyslipidemia we have derived the minimal congenic SHR.PD-(D8Rat42-D8Arb23)/Cub (SHR-Lx) strain carrying only 7 genes of PD origin on SHR background.
Design:
Adult male rats of SHR and SHR-Lx strains were fed standard diet (STD) and subsequently treated with retinoic acid (atRA, 15 mg/kg) via oral gavage for 16 days, while still on STD. We contrasted metabolic profiles (incl. oral glucose tolerance test, free fatty acids, triglyceride and cholesterol in 20 lipoprotein fractions) between SHR and SHR-Lx under conditions of standard diet and standard diet + RA administration. We performed transcriptomic analysis of muscle tissue (m. soleus) in all groups using Affymetrix GeneChip Rat Gene 2.0 ST Arrays followed by Ingenuity Pathway Analysis and real-time PCR validation.
Results:
: In response to RA, SHR-Lx reacted with substantially greater rise in TG and C concentrations throughout the lipoprotein spectrum (two-way ANOVA strain * RA interaction significant for C content in chylomicrons(CM), VLDL and LDL as well as total, CM and HDL-TG). According to our modeling of metabolic and signalization pathways using differentially expressed genes we have identified a network with major nodes (Sirt3, Il1b, Cpt1b, Gria2, Pparg, Rdh11) likely to the observed metabolic differences.
Conclusions:
We demonstrated that pharmacogenetic interaction of retinoic acid with a 7- gene region of rat chromosome 8 affects the distribution of cholesterol and triglycerides into the lipoprotein fractions along with other features of metabolic syndrome. Changed expression of network nodes Pparg, Il1b, Sirt3 and Cpt1b appears as central for observed interaction.
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Affiliation(s)
| | - Michaela Janku
- 1 st Faculty of medicine, Charles Univ, Prague, Czech Republic
| | - Frantisek Liska
- 1 st Faculty of medicine, Charles Univ, Prague, Czech Republic
| | - Lucie Sedova
- 1 st Faculty of medicine, Charles Univ, Prague, Czech Republic
| | | | | | - Vladimir Kren
- 1 st Faculty of medicine, Charles Univ, Prague, Czech Republic
| | - Ondrej Seda
- 1 st Faculty of medicine, Charles Univ, Prague, Czech Republic
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Stolfa J, Sedova L, Mares Z. AB0583 Does „minimal disease activity“ correlates with composite indices in patients with psoriatic arthritis? Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Hviscova K, Sedova L, Pavelka K. FRI0429 Toxicity of isoniazid in patients with latent tuberculosis treated by anti-TNF alpha in the czech national registry. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.2886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Manenti L, Signorini L, Gnappi E, Pilato FP, Vaglio A, Allegri L, Buzio C, Bertram A, Lovric S, Park JK, Becker JU, Haubitz M, Kirsch T, Jancova E, Hruskova Z, Lanska V, Sedova L, Olsanska R, Jilek D, Nemejc P, Tesar V, Maritati F, Urban M, Oliva E, Alberici F, Vaglio A, Buzio C, Alberici F, Smith R, Jones R, Jayne D, Chocova Z, Hruskova Z, Mareckova H, Svobodova B, Bednarova V, Jancova E, Rysava R, Tesar V. Renal vasculitis. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Seda O, Sedova L, Liska F, Kazdova L, Tremblay J, Krenova D, Hamet P, Kren V. Effect of Cd36 deficiency on carbohydrate and lipid metabolism is contextually determined by genomic background and reflected in transcriptomic profile. Can J Diabetes 2009. [DOI: 10.1016/s1499-2671(09)33036-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Seda O, Liska F, Krenova D, Kazdova L, Sedova L, Zima T, Peng J, Pelinkova K, Tremblay J, Hamet P, Kren V. Dynamic genetic architecture of metabolic syndrome attributes in the rat. Physiol Genomics 2005; 21:243-52. [PMID: 15728334 DOI: 10.1152/physiolgenomics.00230.2004] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
The polydactylous rat strain (PD/Cub) is a highly inbred (F > 90) genetic model of metabolic syndrome. The aim of this study was to analyze the genetic architecture of the metabolic derangements found in the PD/Cub strain and to assess its dynamics in time and in response to diet and medication. We derived a PD/Cub × BN/Cub (Brown Norway) F2 intercross population of 149 male rats and performed metabolic profiling and genotyping and multiple levels of genetic linkage and statistical analyses at five different stages of ontogenesis and after high-sucrose diet feeding and dexamethasone administration challenges. The interval mapping analysis of 83 metabolic and morphometric traits revealed over 50 regions genomewide with significant or suggestive linkage to one or more of the traits in the segregating PD/Cub × BN/Cub population. The multiple interval mapping showed that, in addition to “single” quantitative train loci, there are more than 30 pairs of loci across the whole genome significantly influencing the variation of particular traits in an epistatic fashion. This study represents the first whole genome analysis of metabolic syndrome in the PD/Cub model and reveals several new loci previously not connected to the genetics of insulin resistance and dyslipidemia. In addition, it attempts to present the concept of “dynamic genetic architecture” of metabolic syndrome attributes, evidenced by shifts in the genetic determination of syndrome features during ontogenesis and during adaptation to the dietary and pharmacological influences.
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Affiliation(s)
- Ondrej Seda
- Centre de Recherche, Centre Hospitalier de l'Université de Montréal, Montreal, Canada
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Sedova L, Seda O, Liska F, Kazdova L, Krenova D, Zima T, Pelinkova K, Tremblay J, Hamet P, Kren V. W09-P-021 New pharmacogenetic model of glucocorticoid-induced dyslipidemia and insulin resistance. ATHEROSCLEROSIS SUPP 2005. [DOI: 10.1016/s1567-5688(05)80176-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Sedova L, Seda O, Krenova D, Kren V, Kazdova L. Isotretinoin and fenofibrate induce adiposity with distinct effect on metabolic profile in a rat model of the insulin resistance syndrome. Int J Obes (Lond) 2004; 28:719-25. [PMID: 15007394 DOI: 10.1038/sj.ijo.0802613] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To investigate the effect of transcription-modulating drugs, fenofibrate and isotretinoin, on metabolic profile, insulin sensitivity of adipose and muscle tissues and gene expression in a genetic model of insulin resistance syndrome, polydactylous rat strain (PD/Cub). DESIGN Administration of fenofibrate (100 mg/kg/day), isotretinoin (30 mg/kg/day) or vehicle to adult male PD/Cub rats fed standard laboratory chow for 15 days. MEASUREMENTS Parameters of lipid and carbohydrate metabolism-oral glucose tolerance test, serum concentrations of insulin, triglycerides (TG), free fatty acids (FFA), glycerol, total cholesterol (CH); morphometric variables, in vitro insulin sensitivity of adipose and muscle tissues, catecholamine-stimulated lipolysis and the expression of ApoC-III and Hnf-4 genes in liver. RESULTS Both experimental groups displayed an increase in adiposity with contrasting effects on TG (lowered by fenofibrate and increased by isotretinoin) and gene expression (no change in fibrate-treated rats and increased expression of ApoC-III and Hnf-4 in isotretinoin-treated group). Fenofibrate-treated rats also showed decreased concentrations of FFA and CH with concomitant decrease of catecholamine-induced lipolysis in adipocytes, but also hyperinsulinemia and the highest insulin/glucose ratio. Isotretinoin increased glycerol concentrations and decreased the insulin sensitivity of peripheral tissues. CONCLUSION The PD/Cub rat showed a distinct pharmacogenetic reaction to fenofibrate and isotretinoin administration. Several lines of evidence now implicate specific variant(s) of ApoC-III and/or ApoA-V alleles as responsible for the dyslipidemia observed in this genetic model. The PD/Cub strain may also serve as a pharmacogenetic model for dissection of the retinoid-induced hypertriglyceridemia.
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Affiliation(s)
- L Sedova
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, Prague, Czech Republic
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Pausova Z, Sedova L, Berube J, Hamet P, Tremblay J, Dumont M, Gaudet D, Pravenec M, Kren V, Kunes J. Segment of rat chromosome 20 regulates diet-induced augmentations in adiposity, glucose intolerance, and blood pressure. Hypertension 2003; 41:1047-55. [PMID: 12654711 DOI: 10.1161/01.hyp.0000064347.49341.0b] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Previous linkage and association studies have suggested that a region of human chromosome 6 containing the tumor necrosis factor (TNF)-alpha gene is involved in the pathogenesis of obesity and obesity-associated hypertension. The aim of the present investigation was to establish whether a segment of rat chromosome 20 (RNO20), which also contains the TNF-alpha gene, determines diet-induced changes in adiposity and blood pressure (BP). The results showed that a transfer of the RNO20 segment from the normotensive Brown Norway (BN) rat onto the background of the spontaneously hypertensive rat (SHR) is associated with a significantly greater increase in adiposity, glucose intolerance, circulating leptin levels, and BP during 12-week, high-fat-diet feeding. In contrast, the transfer is not associated with significant changes in these variables during 12-week, normal-diet feeding. In addition, sequencing of the TNF-alpha gene revealed differences between SHR and BN in the 5'- and 3'-regulatory regions of the gene. Subsequent analyses of TNF-alpha gene expression in fat, muscle, and liver, however, did not provide support for the functional involvement of these differences. In summary, the investigated RNO20 segment contains 1 or more gene variants that affect adiposity, glucose tolerance, serum leptin levels, and BP, but only when the animals are exposed to a particular environment, ie, high-fat-diet feeding. Further studies are needed to identify genes mediating these effects. Considering current changes in our lifestyle involving an increased calorie and fat intake, we believe that gene-environment interactions, such as those described here, play an important role in the current epidemic of obesity and obesity-associated hypertension.
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Affiliation(s)
- Zdenka Pausova
- Laboratory of Functional Genomics, Centre de recherche, CHUM Hôtel-Die, 3850 St Urbain St, Montréal, Québec H2W 1T7, Canada.
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Vencovsky J, Sedova L, Machacek S, Gatterova J, Pesakova V, Kafkova J, Krystufkova O. The significance of antibodies to cyclic citrullinated peptide, antikeratin antibodies, anti-perinuclear factor, rheumatoid factor isotypes and HLA shared epitope in prediction of erosive disease in early rheumatoid arthritis patients. Arthritis Res Ther 2001. [PMCID: PMC3273257 DOI: 10.1186/ar171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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