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Binderup HG, Houlind K, Madsen JS, Brasen CL. Pre-storage centrifugation conditions have significant impact on measured microRNA levels in biobanked EDTA plasma samples. Biochem Biophys Rep 2016; 7:195-200. [PMID: 28955906 PMCID: PMC5613297 DOI: 10.1016/j.bbrep.2016.06.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 05/27/2016] [Accepted: 06/06/2016] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND In the past few years, an increasing number of studies have reported the potential use of microRNAs (miRNA) as circulating biomarkers for diagnosis or prognosis of a wide variety of diseases. There is, however, a lack of reproducibility between studies. Due to the high miRNA content in platelets this may partly be explained by residual platelets in the plasma samples used. When collecting fresh plasma samples, it is possible to produce cell-free/platelet-poor plasma by centrifugation. In this study, we systematically investigated whether biobanked EDTA plasma samples could be processed to be suitable for miRNA analysis. MATERIALS AND METHODS Blood samples were collected from ten healthy volunteers and centrifuged to produce platelet-poor-plasma (PPP) and standard biobank plasma. After one week at -80 °C the biobanked EDTA plasma was re-centrifuged by different steps to remove residual platelets. Using RT-qPCR the levels of 14 miRNAs in the different plasma preparations were compared to that of PPP. RESULTS We were able to remove residual platelets from biobanked EDTA plasma by re-centrifugation of the thawed samples. Nevertheless, for most of the investigated miRNAs, the miRNA level was significantly higher in the re-centrifuged biobanked plasma compared to PPP, even when the platelet count was reduced to 0-1×109/L. CONCLUSION We found, that pre-storage centrifugation conditions have a significant impact on the measured EDTA plasma level of miRNAs known to be present in platelets. Even for the miRNAs found to be less effected, we showed that a 1.5-3 fold change in plasma levels may possible be caused by or easily overseen due to sample preparation and/or storage.
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Affiliation(s)
- Helle Glud Binderup
- Department of Clinical Immunology and Biochemistry, Lillebaelt Hospital, Kolding, Denmark
| | - Kim Houlind
- Department of Vascular Surgery, Lillebaelt Hospital, Kolding, Denmark
- Institute of Regional Health Research, University of Southern Denmark, Denmark
| | - Jonna Skov Madsen
- Department of Clinical Immunology and Biochemistry, Lillebaelt Hospital, Kolding, Denmark
- Institute of Regional Health Research, University of Southern Denmark, Denmark
| | - Claus Lohman Brasen
- Department of Clinical Immunology and Biochemistry, Lillebaelt Hospital, Kolding, Denmark
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Systematic Review of Micro-RNA Expression in Pre-Eclampsia Identifies a Number of Common Pathways Associated with the Disease. PLoS One 2016; 11:e0160808. [PMID: 27529341 PMCID: PMC4986940 DOI: 10.1371/journal.pone.0160808] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 07/24/2016] [Indexed: 01/08/2023] Open
Abstract
Background Pre-eclampsia (PE) is a complex, multi-systemic condition of pregnancy which greatly impacts maternal and perinatal morbidity and mortality. MicroRNAs (miRs) are differentially expressed in PE and may be important in helping to understand the condition and its pathogenesis. Methods Case-control studies investigating expression of miRs in PE were collected through a systematic literature search. Data was extracted and compared from 58 studies to identify the most promising miRs associated with PE pathogenesis and identify areas of methodology which could account for often conflicting results. Results Some of the most frequently differentially expressed miRs in PE include miR-210, miR-223 and miR-126/126* which associate strongly with the etiological domains of hypoxia, immunology and angiogenesis. Members of the miR-515 family belonging to the imprinted chromosome 19 miR cluster with putative roles in trophoblast invasion were also found to be differentially expressed. Certain miRs appear to associate with more severe forms of PE such as miR-210 and the immune-related miR-181a and miR-15 families. Patterns of miR expression may help pinpoint key pathways (e.g. IL-6/miR-223/STAT3) and aid in untangling the heterogeneous nature of PE. The detectable presence of many PE-associated miRs in antenatal circulatory samples suggests their usefulness as predictive biomarkers. Further progress in ascertaining the clinical value of miRs and in understanding how they might contribute to pathogenesis is predicated upon resolving current methodological challenges in studies. These include differences in diagnostic criteria, cohort characteristics, sampling technique, RNA isolation and platform-dependent variation in miR profiling. Conclusion Reviewing studies of PE-associated miRs has revealed their potential as informants of underlying target genes and pathways relating to PE pathogenesis. However, the incongruity in results across current studies hampers their capacity to be useful biomarkers of the condition.
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Svobodová I, Korabečná M, Calda P, Břešťák M, Pazourková E, Pospíšilová Š, Krkavcová M, Novotná M, Hořínek A. Differentially expressed miRNAs in trisomy 21 placentas. Prenat Diagn 2016; 36:775-84. [PMID: 27323694 DOI: 10.1002/pd.4861] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 05/30/2016] [Accepted: 06/16/2016] [Indexed: 01/12/2023]
Abstract
OBJECTIVE Molecular pathogenesis of Down syndrome (DS) is still incompletely understood. Epigenetic mechanisms, including miRNAs gene expression regulation, belong to potential influencing factors. The aims of this study were to compare miRNAs expressions in placentas with normal and trisomic karyotype and to associate differentially expressed miRNAs with concrete biological pathways. METHODS A total of 80 CVS samples - 41 with trisomy 21 and 39 with normal karyotype - were included in our study. Results obtained in the pilot study using real-time PCR technology and TaqMan Human miRNA Array Cards were subsequently validated on different samples using individual TaqMan miRNA Assays. RESULTS Seven miRNAs were verified as upregulated in DS placentas (miR-99a, miR-542-5p, miR-10b, miR-125b, miR-615, let-7c and miR-654); three of these miRNAs are located on chromosome 21 (miR-99a, miR-125b and let-7c). Many essential biological processes, transcriptional regulation or apoptosis, were identified as being potentially influenced by altered miRNA levels. Moreover, miRNAs overexpressed in DS placenta apparently regulate genes involved in placenta development (GJA1, CDH11, EGF, ERVW-1, ERVFRD-1, LEP or INHA). CONCLUSION These findings suggest the possible participation of miRNAs in Down syndrome impaired placentation and connected pregnancy pathologies. © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Iveta Svobodová
- Institute of Biology and Medical Genetics of the First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Marie Korabečná
- Institute of Biology and Medical Genetics of the First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Pavel Calda
- Department of Obstetrics and Gynecology of the First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Miroslav Břešťák
- Department of Obstetrics and Gynecology of the First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic.,Screening Center ProfiG2, Prague, Czech Republic
| | - Eva Pazourková
- Institute of Biology and Medical Genetics of the First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Šárka Pospíšilová
- Institute of Biology and Medical Genetics of the First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | | | - Michaela Novotná
- Department of Obstetrics and Gynecology of the First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Aleš Hořínek
- Institute of Biology and Medical Genetics of the First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic.,3rd Medical Department of Internal Medicine of the First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
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104
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Cretoiu D, Xu J, Xiao J, Suciu N, Cretoiu SM. Circulating MicroRNAs as Potential Molecular Biomarkers in Pathophysiological Evolution of Pregnancy. DISEASE MARKERS 2016; 2016:3851054. [PMID: 27493447 PMCID: PMC4967453 DOI: 10.1155/2016/3851054] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Accepted: 06/15/2016] [Indexed: 12/17/2022]
Abstract
MicroRNAs represent nonprotein coding small RNA molecules that are very stable to degradation and responsible for gene silencing in most eukaryotic cells. Increased evidence has been accumulating over the years about their potential value as biomarkers for several diseases. MicroRNAs were predicted to be involved in nearly all biological processes from development to oncogenesis. In this review, we address the importance of circulating microRNAs in different conditions associated with pregnancy starting with the implantation period to preeclampsia and we shortly describe the correlation between placental circulating miRNAs and pregnancy status. We also discuss the importance of microRNAs in recurrent abortion and ectopic pregnancy.
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Affiliation(s)
- Dragos Cretoiu
- Division of Cellular and Molecular Biology and Histology, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Victor Babeș National Institute of Pathology, 050096 Bucharest, Romania
| | - Jiahong Xu
- Department of Cardiology, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - Junjie Xiao
- Regeneration and Ageing Lab, Experimental Center of Life Sciences, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Nicolae Suciu
- Department of Obstetrics and Gynecology, Polizu Clinical Hospital, Carol Davila University of Medicine and Pharmacy, 011062 Bucharest, Romania
- Alessandrescu-Rusescu National Institute of Mother and Child Health, 020395 Bucharest, Romania
| | - Sanda Maria Cretoiu
- Division of Cellular and Molecular Biology and Histology, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Victor Babeș National Institute of Pathology, 050096 Bucharest, Romania
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105
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MiR-195 participates in the placental disorder of preeclampsia via targeting activin receptor type-2B in trophoblastic cells. J Hypertens 2016; 34:1371-9. [DOI: 10.1097/hjh.0000000000000948] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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miRNAs as common regulators of the transforming growth factor (TGF)-β pathway in the preeclamptic placenta and cadmium-treated trophoblasts: Links between the environment, the epigenome and preeclampsia. Food Chem Toxicol 2016; 98:50-57. [PMID: 27375191 DOI: 10.1016/j.fct.2016.06.023] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 06/21/2016] [Indexed: 01/12/2023]
Abstract
Preeclampsia (PE) is a pregnancy disorder characterized by high blood pressure and proteinuria that can cause adverse health effects in both mother and fetus. There is no current cure for PE other than delivery of the fetus/placenta. While the etiology is unknown, poor placentation due to aberrant signaling of growth and angiogenic factors has been postulated as a causal factor of PE. In addition, environmental contaminants, such as the metal cadmium (Cd), have been linked to placental toxicity and increased risk of developing PE. Here, we use a translational study design to investigate genomic and epigenomic alterations in both placentas and placental trophoblasts, focused on the angiogenesis-associated transforming growth factor-beta (TGF-β) pathway. Genes within the TGF-β pathway displayed increased expression in both the preeclamptic placenta and Cd-treated trophoblasts. In addition, miRNAs that target the TGF-β pathway were also significantly altered within the preeclamptic placenta and Cd-treated trophoblasts. Integrative analysis resulted in the identification of a subset of Cd-responsive miRNAs, including miR-26a and miR-155, common to preeclamptic placentas and Cd-treated trophoblasts. These miRNAs have previously been linked to PE and are predicted to regulate members of the TGF-β pathway. Results from this study provide future targets for PE treatment.
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107
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Ioannidis J, Donadeu FX. Circulating microRNA Profiles during the Bovine Oestrous Cycle. PLoS One 2016; 11:e0158160. [PMID: 27340826 PMCID: PMC4920432 DOI: 10.1371/journal.pone.0158160] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 06/10/2016] [Indexed: 12/11/2022] Open
Abstract
Up to 50% of ovulations go undetected in modern dairy herds due to attenuated oestrus behavior and a lack of high-accuracy methods for detection of fertile oestrus. This significantly reduces overall herd productivity and constitutes a high economic burden to the dairy industry. MicroRNAs (miRNAs) are ubiquitous regulators of gene expression during both health and disease and they have been shown to regulate different reproductive processes. Extracellular miRNAs are stable and can provide useful biomarkers of tissue function; changes in circulating miRNA profiles have been reported during menstrual cycles. This study sought to establish the potential of circulating miRNAs as biomarkers of oestrus in cattle. We collected plasma samples from 8 Holstein-Friesian heifers on days Days 0, 8 and 16 of an oestrous cycle and analysed small RNA populations on each Day using two independent high-throughput approaches, namely, Illumina sequencing (n = 24 samples) and Qiagen PCR arrays (n = 9 sample pools, 3–4 samples / pool). Subsequently, we used RT-qPCR (n = 24 samples) to validate the results of high-throughput analyses, as well as to establish the expression profiles of additional miRNAs previously reported to be differentially expressed during reproductive cycles. Overall, we identified four miRNAs (let-7f, miR-125b, miR-145 and miR-99a-5p), the plasma levels of which distinctly increased (up to 2.2-fold, P < 0.05) during oestrus (Day 0) relative to other stages of the cycle (Days 8 and 16). Moreover, we identified several hundred different isomiRs and established their relative abundance in bovine plasma. In summary, our results reveal the dynamic nature of plasma miRNAs during the oestrous cycle and provide evidence of the feasibility of using circulating miRNAs as biomarkers of reproductive function in livestock in the future.
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Affiliation(s)
- Jason Ioannidis
- The Roslin Institute and R(D)SVS, University of Edinburgh, Easter Bush, Midlothian, United Kingdom
| | - F. Xavier Donadeu
- The Roslin Institute and R(D)SVS, University of Edinburgh, Easter Bush, Midlothian, United Kingdom
- * E-mail:
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Abstract
OBJECTIVES Preeclampsia is a multisystem disease that significantly contributes to maternal and foetal morbidity and mortality. In this study, we used a nonbiased microarray approach to identify novel circulating miRNAs in maternal plasma that may be associated with preeclampsia. METHODS Plasma samples were obtained at 16 and 28 weeks of gestation from 18 women who later developed preeclampsia (cases) and 18 matched women with normotensive pregnancies (controls). We studied miRNA expression profiles in plasma and subsequently confirmed miRNA and target gene expression in placenta samples. Placental samples were obtained from an independent cohort of 19 women with preeclampsia matched with 19 women with normotensive pregnancies. RESULTS From the microarray, we identified one miRNA that was significantly differentially expressed between cases and controls at 16 weeks of gestation and six miRNAs that were significantly differentially expressed at 28 weeks. Following qPCR validation, only one miR-206 was found to be significantly increased in 28-week samples in women who later developed preeclampsia (1.4-fold change ± 0.2). The trend for increase in miR-206 expression was mirrored within placental tissue from women with preeclampsia. In parallel, IGF-1, a target gene of miR-206, was also found to be downregulated (0.41 ± 0.04) in placental tissue from women with preeclampsia. miR-206 expression was also detectable in myometrium tissue and trophoblast cell lines. CONCLUSION Our pilot study has identified miRNA-206 as a novel factor upregulated in preeclampsia within the maternal circulation and in placental tissue.
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109
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Circulating microRNAs in follicular fluid, powerful tools to explore in vitro fertilization process. Sci Rep 2016; 6:24976. [PMID: 27102646 PMCID: PMC4840336 DOI: 10.1038/srep24976] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 04/08/2016] [Indexed: 12/19/2022] Open
Abstract
Circulating or “extracellular” microRNAs (miRNAs) detected in biological fluids, could be used as potential diagnostic and prognostic biomarkers of several disease, such as cancer, gynecological and pregnancy disorders. However, their contributions in female infertility and in vitro fertilization (IVF) remain unknown. This study investigated the expression profiles of five circulating miRNAs (let-7b, miR-29a, miR-30a, miR-140 and miR-320a) in human follicular fluid from 91 women with normal ovarian reserve and 30 with polycystic ovary syndrome (PCOS) and their ability to predict IVF outcomes. The combination of FF miR-30a, miR-140 and let-7b expression levels discriminated between PCOS and normal ovarian reserve with a specificity of 83.8% and a sensitivity of 70% (area under the ROC curve, AUC = 0.83 [0.73–0.92]; p < 0.0001). FF samples related to low number of mature oocytes (≤2) contained significant less miR-320a levels than those related to a number of mature oocytes >2 (p = 0.04). Moreover, FF let-7b predicted the development of expanded blastocysts with 70% sensitivity and 64.3% specificity (AUC = 0.67 [0.54–0.79]; p = 0.02) and FF miR-29a potential to predict clinical pregnancy outcome reached 0.68 [0.55–0.79] with a sensitivity of 83.3% and a specificity of 53.5% (p = 0.01). Therefore, these miRNAs could provide new helpful biomarkers to facilitate personalized medical care during IVF.
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High-throughput deep screening and identification of four peripheral leucocyte microRNAs as novel potential combination biomarkers for preeclampsia. J Perinatol 2016; 36:263-7. [PMID: 26675000 PMCID: PMC4819758 DOI: 10.1038/jp.2015.192] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 10/08/2015] [Accepted: 11/03/2015] [Indexed: 01/02/2023]
Abstract
OBJECTIVE To identify the specific microRNA (miRNA) biomarkers of preeclampsia (PE), the miRNA profiles analysis were performed. STUDY DESIGN The blood samples were obtained from five PE patients and five normal healthy pregnant women. The small RNA profiles were analyzed to identify miRNA expression levels and find out miRNAs that may associate with PE. The quantitative reverse transcriptase-PCR (qRT-PCR) assay was used to validate differentially expressed peripheral leucocyte miRNAs in a new cohort. RESULT The data analysis showed that 10 peripheral leucocyte miRNAs were significantly differently expressed in severe PE patients. Four differently expressed miRNAs were successfully validated using qRT-PCR method. CONCLUSION We successfully constructed a model with high accuracy to predict PE. A combination of four peripheral leucocyte miRNAs has great potential to serve as diagnostic biomarkers of PE.
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111
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Escudero CA, Herlitz K, Troncoso F, Acurio J, Aguayo C, Roberts JM, Truong G, Duncombe G, Rice G, Salomon C. Role of Extracellular Vesicles and microRNAs on Dysfunctional Angiogenesis during Preeclamptic Pregnancies. Front Physiol 2016; 7:98. [PMID: 27047385 PMCID: PMC4796029 DOI: 10.3389/fphys.2016.00098] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 03/01/2016] [Indexed: 01/08/2023] Open
Abstract
Preeclampsia is a syndrome characterized by hypertension during pregnancy, which is a leading cause of morbidity and mortality in both mother and newborn in developing countries. Some advances have increased the understanding of pathophysiology of this disease. For example, reduced utero-placental blood flow associated with impaired trophoblast invasion may lead to a hypoxic placenta that releases harmful materials into the maternal and feto-placental circulation and impairs endothelial function. Identification of these harmful materials is one of the hot topics in the literature, since these provide potential biomarkers. Certainty, such knowledge will help us to understand the miscommunication between mother and fetus. In this review we highlight how placental extracellular vesicles and their cargo, such as small RNAs (i.e., microRNAs), might be involved in endothelial dysfunction, and then in the angiogenesis process, during preeclampsia. Currently only a few reports have addressed the potential role of endothelial regulatory miRNA in the impaired angiogenesis in preeclampsia. One of the main limitations in this area is the variability of the analyses performed in the current literature. This includes variability in the size of the particles analyzed, and broad variation in the exosomes considered. The quantity of microRNA targets genes suggest that practically all endothelial cell metabolic functions might be impaired. More studies are required to investigate mechanisms underlying miRNA released from placenta upon endothelial function involved in the angiogenenic process.
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Affiliation(s)
- Carlos A Escudero
- Group of Investigation in Tumor Angiogenesis, Vascular Physiology Laboratory, Universidad del Bío-BíoChillán, Chile; Group of Research and Innovation in Vascular Health, Department of Basic Sciences, Universidad del Bío-BíoChillán, Chile
| | - Kurt Herlitz
- Group of Investigation in Tumor Angiogenesis, Vascular Physiology Laboratory, Universidad del Bío-Bío Chillán, Chile
| | - Felipe Troncoso
- Group of Investigation in Tumor Angiogenesis, Vascular Physiology Laboratory, Universidad del Bío-Bío Chillán, Chile
| | - Jesenia Acurio
- Group of Investigation in Tumor Angiogenesis, Vascular Physiology Laboratory, Universidad del Bío-Bío Chillán, Chile
| | - Claudio Aguayo
- Group of Research and Innovation in Vascular Health, Department of Basic Sciences, Universidad del Bío-BíoChillán, Chile; Department of Clinical Biochemistry and Immunology, Faculty of Pharmacy, University of ConcepciónConcepción, Chile
| | - James M Roberts
- Departments of Obstetrics, Gynecology and Reproductive Sciences, Epidemiology, and the Clinical and Translational Science Institute, Magee-Womens Research Institute, University of Pittsburgh Pittsburgh, PA, USA
| | - Grace Truong
- Exosome Biology Laboratory, Faculty of Medicine and Biomedical Sciences, Centre for Clinical Diagnostics, UQ Centre for Clinical Research, The University of Queensland Brisbane, QLD, Australia
| | - Gregory Duncombe
- Exosome Biology Laboratory, Faculty of Medicine and Biomedical Sciences, Centre for Clinical Diagnostics, UQ Centre for Clinical Research, The University of Queensland Brisbane, QLD, Australia
| | - Gregory Rice
- Exosome Biology Laboratory, Faculty of Medicine and Biomedical Sciences, Centre for Clinical Diagnostics, UQ Centre for Clinical Research, The University of QueenslandBrisbane, QLD, Australia; Ochsner Clinic Foundation, Maternal-Fetal Medicine, Department of Obstetrics and GynecologyNew Orleans, LA, USA
| | - Carlos Salomon
- Department of Clinical Biochemistry and Immunology, Faculty of Pharmacy, University of ConcepciónConcepción, Chile; Exosome Biology Laboratory, Faculty of Medicine and Biomedical Sciences, Centre for Clinical Diagnostics, UQ Centre for Clinical Research, The University of QueenslandBrisbane, QLD, Australia; Ochsner Clinic Foundation, Maternal-Fetal Medicine, Department of Obstetrics and GynecologyNew Orleans, LA, USA
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Ioannidis J, Donadeu FX. Circulating miRNA signatures of early pregnancy in cattle. BMC Genomics 2016; 17:184. [PMID: 26939708 PMCID: PMC4778341 DOI: 10.1186/s12864-016-2529-1] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 02/24/2016] [Indexed: 01/21/2023] Open
Abstract
Background Low fertility remains a leading cause of poor productivity in dairy cattle. In this context, there is significant interest in developing novel tools for accurate early diagnosis of pregnancy. MicroRNAs (miRNAs) are short RNA molecules which are critically involved in regulating gene expression during both health and disease. MiRNAs have been shown to regulate ovarian function, uterine receptivity, embryonic development and placental function. Circulating miRNAs can provide useful biomarkers of tissue function and disease; importantly, differential miRNA profiles have been linked to pregnancy and preeclampsia in humans. This study sought to establish the potential of circulating miRNAs as biomarkers of early pregnancy in cattle. Results We applied Illumina small-RNA sequencing to profile miRNAs in plasma samples collected from eight non-pregnant heifers on Days 0, 8 and 16 of the oestrous cycle and 11 heifers on Days 16 and 24 of pregnancy. We sequenced a total of 46 samples and generated 9.2 million miRNA reads per sample. There were no differences in miRNA read abundance between any of the pregnant and non-pregnant time-points (FDR > 0.1). As a complementary approach, we analysed sample pools (3–4 samples/pool) corresponding to Days 0, 8 and 16 of the oestrous cycle and Day 24 of pregnancy (n = 3 pools/group) using Qiagen PCR arrays. A total of 16 miRNAs were differentially expressed (FDR < 0.1) in plasma between pregnant and non-pregnant animals. RT-qPCR validation using the same plasma samples confirmed that miR-26a was differentially upregulated on Day 16 pregnant relative to non-pregnant heifers (1.7-fold; P = 0.043), whereas miR-1249 tended to be upregulated in Day 16 pregnant heifers (1.6-fold; P = 0.081). Further validation in an independent group of heifers confirmed an increase in plasma miR-26a levels during early pregnancy, which was significant only on Day 24 (2.0-fold; P = 0.027). Conclusions Through genome-wide analyses we have successfully profiled plasma miRNA populations associated with early pregnancy in cattle. We have identified miR-26a as a potential circulating biomarker of early pregnancy. Electronic supplementary material The online version of this article (doi:10.1186/s12864-016-2529-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jason Ioannidis
- The Roslin Institute and R(D)SVS, University of Edinburgh, Easter Bush, Midlothian, EH25 9RG, Scotland, UK.
| | - F Xavier Donadeu
- The Roslin Institute and R(D)SVS, University of Edinburgh, Easter Bush, Midlothian, EH25 9RG, Scotland, UK.
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Sandrim VC, Eleuterio N, Pilan E, Tanus-Santos JE, Fernandes K, Cavalli R. Plasma levels of increased miR-195-5p correlates with the sFLT-1 levels in preeclampsia. Hypertens Pregnancy 2016; 35:150-8. [PMID: 26910493 DOI: 10.3109/10641955.2015.1122034] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Although the role of soluble fms-like tyrosine kinase 1 (sFLT-1) in preeclampsia is well-established, the mechanism related to its synthesis remains poorly understood. We evaluated the association among the circulating microRNAs (miRs) and sFLT-1 levels in preeclampsia pregnant women. For this purpose, we measured the plasma sFLT-1 levels in 24 preeclampsia women and selected from these, three subjects with the lowest and three with the highest levels of sFLT-1 in order to screen for potential miRs associated with plasmatic sFLT-1 concentrations using a polymerase chain reaction-array (PCR-array) methodology. From screening results, we found three statistically different expressed miRs with fold change (FC-high/low levels) ≥3.0: miR-195-5p (FC = 5.2 increase in group with high sFLT-1 levels), miR-16-5p (FC = 3.2; increase in group with high sFLT-1 levels), and miR-375 (FC = -3.0; decrease in group with high sFLT-1 levels) which were later validated in all samples (n = 24). To correlate these miRs and plasma sFLT-1 levels, we used two extremes of analysis. In one part, we compared 12 preeclampsia women with the lowest sFLT-1 levels (L-50% group) to 12 with the highest levels (50% H group); and in the second analysis, 6 preeclampsia women (L-25%) from the L group to 6 preeclampsia women from the H group (H-25%). Our results showed increased expression of miR-195-5p in the H group, considering both the analyses with 50%, FC = 2.1 and 25%, FC = 4.2. Regarding other miRs, lack of correlation was found in both analyses (50% and 25%). In conclusion, our data demonstrate an association of higher levels of sFLT-1 with increased expression of miR-195-5p in preeclampsia pregnant women.
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Affiliation(s)
- Valeria Cristina Sandrim
- a Department of Pharmacology , Institute of Biosciences, Universidade Estadual Paulista (UNESP) , Botucatu , São Paulo , Brazil
| | - Nibia Eleuterio
- a Department of Pharmacology , Institute of Biosciences, Universidade Estadual Paulista (UNESP) , Botucatu , São Paulo , Brazil
| | - Eliane Pilan
- a Department of Pharmacology , Institute of Biosciences, Universidade Estadual Paulista (UNESP) , Botucatu , São Paulo , Brazil
| | | | - Karla Fernandes
- c Department of Pharmacology, Faculty of Medicine of Ribeirao Preto , University of Sao Paulo , Ribeirao Preto , SP , Brazil
| | - Ricardo Cavalli
- d Department of Gynecology and Obstetrics, Faculty of Medicine of Ribeirao Preto , University of Sao Paulo , Ribeirao Preto , SP , Brazil
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114
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Sandrim VC, Luizon MR, Palei AC, Tanus-Santos JE, Cavalli RC. Circulating microRNA expression profiles in pre-eclampsia: evidence of increased miR-885-5p levels. BJOG 2016; 123:2120-2128. [PMID: 26853698 DOI: 10.1111/1471-0528.13903] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/04/2015] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To validate and to compare the circulating microRNA (miR) expression profiles between pre-eclampsia and healthy pregnant women, to perform correlation analysis of the differently expressed miRs with clinical and biochemical parameters, and to verify the extracellular localisation of miRs in apoptotic bodies, microvesicles, and exosomes. DESIGN A case-control study with a replication study. SETTING Pregnant women attending maternity hospitals in Southeastern Brazil. POPULATION Two obstetric white populations: a case-control study (19 pre-eclampsia and 14 healthy pregnant) and a replication study (eight pre-eclampsia and eight healthy pregnant). METHODS PCR-array with 84 different miRs was performed in plasma from five pre-eclampsia and four healthy pregnant women. In the case-control study, differently expressed miRs were validated using quantitative real-time reverse transcription polymerase chain reaction (qRT-PCR), and correlated with clinical and biochemical parameters. The plasma was then fractioned to study the extracellular localisation of miRs. MAIN OUTCOME MEASURES Gene expression profiles of miRs. RESULTS From PCR-array, three miRs (miR-376c-3p, miR-19a-3p, and miR-19b-3p) were found to be down-regulated and the miR-885-5p was found to be up-regulated in pre-eclampsia compared with healthy pregnant women. In the validation step, miR-885-5p was the only significantly different miR (fold-change = 5.0, P < 0.05), which was confirmed in the replication study (fold-change = 4.5, P < 0.05). Moreover, miR-885-5p was significantly correlated with the hepatic enzyme aspartate transaminase (r = 0.66; P = 0.0034) and it was mostly associated with the exosomes (32-fold higher than apoptotic bodies). CONCLUSIONS miR-885-5p is increased in plasma from pre-eclampsia compared with healthy pregnant women, and it is released into circulation mainly inside exosomes. TWEETABLE ABSTRACT: miR-885-5p is increased in pre-eclampsia and is released into circulation mainly inside exosomes.
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Affiliation(s)
- V C Sandrim
- Department of Pharmacology, Institute of Biosciences of Botucatu, Universidade Estadual Paulista (UNESP), Botucatu, São Paulo, Brazil
| | - M R Luizon
- Department of Pharmacology, Institute of Biosciences of Botucatu, Universidade Estadual Paulista (UNESP), Botucatu, São Paulo, Brazil
| | - A C Palei
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS, USA.,Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson, MS, USA
| | - J E Tanus-Santos
- Department of Pharmacology, Faculty of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
| | - R C Cavalli
- Department of Gynaecology and Obstetrics, Faculty of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
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115
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Jairajpuri DS, Almawi WY. MicroRNA expression pattern in pre-eclampsia (Review). Mol Med Rep 2016; 13:2351-8. [PMID: 26847841 DOI: 10.3892/mmr.2016.4846] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 01/13/2016] [Indexed: 11/05/2022] Open
Abstract
Pre-eclampsia (PE), a pregnancy complication, is a leading cause of maternal and fetal morbidity and mortality. Although its exact etiology and pathogenesis remain elusive, PE results from an interaction of inherited and non‑inherited factors. The clinical symptoms of PE appear post‑mid‑stage of gestation and, at present, there are no early signs/markers for its onset and progression. MicroRNAs function as gene regulators, and are involved in development and pathology. A burgeoning number of studies have highlighted microRNAs as potential biomarkers for minimal invasive assessment. However, it remains a matter of debate as to which microRNA type is involved in PE onset and progression, as well as the clinical utility of testing for these species. In the present review, we have summarized the latest findings on the association of PE with the aberrant expression of placental microRNAs; in particular, those that are detectable in the blood. The current understanding of the mechanisms of microRNA‑target gene interactions that underpin the involvement of microRNAs in the pathogenesis of PE is also discussed.
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Affiliation(s)
- Deeba S Jairajpuri
- Department of Medical Biochemistry, Arabian Gulf University, Manama 26671, Kingdom of Bahrain
| | - Wassim Y Almawi
- Department of Medical Biochemistry, Arabian Gulf University, Manama 26671, Kingdom of Bahrain
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116
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Gestational hypertension, preeclampsia and intrauterine growth restriction induce dysregulation of cardiovascular and cerebrovascular disease associated microRNAs in maternal whole peripheral blood. Thromb Res 2016; 137:126-140. [DOI: 10.1016/j.thromres.2015.11.032] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 11/11/2015] [Accepted: 11/20/2015] [Indexed: 12/13/2022]
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117
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Kosicka K, Siemiątkowska A, Główka FK. 11β-Hydroxysteroid Dehydrogenase 2 in Preeclampsia. Int J Endocrinol 2016; 2016:5279462. [PMID: 27200090 PMCID: PMC4856917 DOI: 10.1155/2016/5279462] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 04/05/2016] [Indexed: 11/17/2022] Open
Abstract
Preeclampsia is a serious medical problem affecting the mother and her child and influences their health not only during the pregnancy, but also many years after. Although preeclampsia is a subject of many research projects, the etiology of the condition remains unclear. One of the hypotheses related to the etiology of preeclampsia is the deficiency in placental 11β-hydroxysteroid dehydrogenase 2 (11β-HSD2), the enzyme which in normal pregnancy protects the fetus from the excess of maternal cortisol. The reduced activity of the enzyme was observed in placentas from pregnancies complicated with preeclampsia. That suggests the overexposure of the developing child to maternal cortisol, which in high levels exerts proapoptotic effects and reduces fetal growth. The fetal growth restriction due to the diminished placental 11β-HSD2 function may be supported by the fact that preeclampsia is often accompanied with fetal hypotrophy. The causes of the reduced function of 11β-HSD2 in placental tissue are still discussed. This paper summarizes the phenomena that may affect the activity of the enzyme at various steps on the way from the gene to the protein.
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Affiliation(s)
- Katarzyna Kosicka
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 6 Święcickiego Street, 60-781 Poznań, Poland
- *Katarzyna Kosicka:
| | - Anna Siemiątkowska
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 6 Święcickiego Street, 60-781 Poznań, Poland
| | - Franciszek K. Główka
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 6 Święcickiego Street, 60-781 Poznań, Poland
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118
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Noferesti SS, Sohel MMH, Hoelker M, Salilew-Wondim D, Tholen E, Looft C, Rings F, Neuhoff C, Schellander K, Tesfaye D. Controlled ovarian hyperstimulation induced changes in the expression of circulatory miRNA in bovine follicular fluid and blood plasma. J Ovarian Res 2015; 8:81. [PMID: 26645573 PMCID: PMC4673782 DOI: 10.1186/s13048-015-0208-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Accepted: 11/24/2015] [Indexed: 12/12/2022] Open
Abstract
Background Despite its role in increasing the number of offspring during the lifetime of an individual animal, controlled ovarian hyperstimulation (COH) may have detrimental effects on oocyte development, embryo quality and endometrial receptivity. Circulating miRNAs in bio-fluids have been shown to be associated with various pathological conditions including cancers. Here we aimed to investigate the effect of COH on the level of extracellular miRNAs in bovine follicular fluid and blood plasma and elucidate their mode of circulation and potential molecular mechanisms to be affected in the reproductive tract. Method Twelve simmental heifers were estrous synchronized and six of them were hyperstimulated using FSH. Follicular fluid samples from experimental animals were collected using ovum pick up technique at day 0 of the estrous cycle and blood samples were collected at day 0, 3 and 7 of post ovulation. The expression profile of circulatory miRNAs in follicular fluid and blood plasma were performed using the human miRCURY LNA™ Universal RT miRNA PCR array system. A comparative threshold cycle method was used to determine the relative abundance of the miRNAs. Results A total of 504 and 402 miRNAs were detected in both bovine follicular fluid and blood plasma, respectively. Of these 57 and 21 miRNAs were found to be differentially expressed in follicular fluid and blood plasma, respectively derived from hyperstimulated versus unstimulated heifers. Bioinformatics analysis of those circulating miRNAs indicated that their potential target genes are involved in several pathways including TGF-beta signaling pathway, MAPK signaling pathway, pathways in cancer and Oocyte meiosis. Moreover, detail analysis of the mode of circulation of some candidates showed that most of the miRNA were found to be detected in both exosomal and Ago2 protein complex fraction of both follicular fluid and blood plasma. Conclusion Our data provide the consequence of hyperstimulation induced changes of extracellular miRNAs in bovine follicular fluid and blood plasma, which may have a potential role in regulating genes associated not only with bovine ovarian function but also involved in altering various physiological in bovine oocytes, embryos and modulating reproductive tract environment.
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Affiliation(s)
- Sina Seifi Noferesti
- Animal Breeding and Husbandry Group, Institute of Animal Science, University of Bonn, Bonn, 53115, Germany
| | - Md Mahmodul Hasan Sohel
- Animal Breeding and Husbandry Group, Institute of Animal Science, University of Bonn, Bonn, 53115, Germany.,Department of Animal Science, Faculty of Agriculture, Erciyes University, Kayseri, 38039, Turkey
| | - Michael Hoelker
- Animal Breeding and Husbandry Group, Institute of Animal Science, University of Bonn, Bonn, 53115, Germany
| | - Dessie Salilew-Wondim
- Animal Breeding and Husbandry Group, Institute of Animal Science, University of Bonn, Bonn, 53115, Germany
| | - Ernst Tholen
- Animal Breeding and Husbandry Group, Institute of Animal Science, University of Bonn, Bonn, 53115, Germany
| | - Christian Looft
- Animal Breeding and Husbandry Group, Institute of Animal Science, University of Bonn, Bonn, 53115, Germany
| | - Franca Rings
- Animal Breeding and Husbandry Group, Institute of Animal Science, University of Bonn, Bonn, 53115, Germany
| | - Christiane Neuhoff
- Animal Breeding and Husbandry Group, Institute of Animal Science, University of Bonn, Bonn, 53115, Germany
| | - Karl Schellander
- Animal Breeding and Husbandry Group, Institute of Animal Science, University of Bonn, Bonn, 53115, Germany
| | - Dawit Tesfaye
- Animal Breeding and Husbandry Group, Institute of Animal Science, University of Bonn, Bonn, 53115, Germany.
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119
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Harapan H, Yeni CM. The role of microRNAs on angiogenesis and vascular pressure in preeclampsia: The evidence from systematic review. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2015. [DOI: 10.1016/j.ejmhg.2015.03.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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120
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Manokhina I, Wilson SL, Robinson WP. Noninvasive nucleic acid-based approaches to monitor placental health and predict pregnancy-related complications. Am J Obstet Gynecol 2015; 213:S197-206. [PMID: 26428499 DOI: 10.1016/j.ajog.2015.07.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 07/11/2015] [Accepted: 07/13/2015] [Indexed: 12/18/2022]
Abstract
During pregnancy, the placenta releases a variety of nucleic acids (including deoxyribonucleic acid, messenger ribonucleic acid, or microribonucleic acids) either as a result of cell turnover or as an active messaging system between the placenta and cells in the maternal body. The profile of released nucleic acids changes with the gestational age and has been associated with maternal and fetal parameters. It also can directly reflect pathological changes in the placenta. Nucleic acids may therefore provide a rich source of novel biomarkers for the prediction of pregnancy complications. However, their utility in the clinical setting depends, first, on overcoming some technical considerations in their quantification, and, second, on developing a better understanding of the factors that influence their function and abundance.
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Affiliation(s)
- Irina Manokhina
- Child and Family Research Institute, Vancouver, BC, Canada; Department of Medical Genetics, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Samantha L Wilson
- Child and Family Research Institute, Vancouver, BC, Canada; Department of Medical Genetics, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Wendy P Robinson
- Child and Family Research Institute, Vancouver, BC, Canada; Department of Medical Genetics, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.
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121
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Li Q, Long A, Jiang L, Cai L, Xie LI, Gu J, Chen X, Tan L. Quantification of preeclampsia-related microRNAs in maternal serum. Biomed Rep 2015; 3:792-796. [PMID: 26623017 DOI: 10.3892/br.2015.524] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 07/15/2015] [Indexed: 11/05/2022] Open
Abstract
To identify the specific serum preeclampsia (PE)-related biomarkers, 10 microRNAs (miRNAs) were selected based on their reported aberrant (4 upregulated and 6 downregulated) expression in PE placenta. A total of 1,035 pregnant patients were enrolled. Finally, 32 pregnancies with PE and 32 healthy pregnancies were incorporated in the study. The expression of these 10 miRNAs in the different trimesters was determined by SYBR-Green reverse transcription-quantitative polymerase chain reaction. Compared with that in the healthy controls, the expression levels of miR-152, miR-183 and miR-210 in PE serum were higher in the second and third trimester, whereas the expression of miR-182 was only higher in the third trimester. The expression levels of 6 miRNAs (miR-1, miR-328, miR-363, miR-377, miR-500 and miR-584) that were downregulated in PE placenta showed no significant differences between pregnancies complicated by PE and healthy pregnancies throughout the 3 trimesters. Areas under the receiver operating characteristic [standard error (SE)] during the 20-24th gestational week for predicting PE were miR-152: 0.94 (SE, 0.026), miR-183: 0.97 (SE, 0.031) and miR-210: 0.93 (SE, 0.018). In conclusion, the expression levels of serum miR-152, miR-183 and miR-210 were elevated since the second trimester in pregnancies complicated with PE, indicating their potentials as serum biomarkers for forecasting PE.
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Affiliation(s)
- Qian Li
- Department of Clinical Laboratory, Shanghai First People's Hospital Baoshan Branch, Shanghai 200940, P.R. China
| | - Anxiong Long
- Department of Clinical Laboratory, Shanghai First People's Hospital Baoshan Branch, Shanghai 200940, P.R. China
| | - Liansheng Jiang
- Department of Clinical Laboratory, Shanghai First People's Hospital Baoshan Branch, Shanghai 200940, P.R. China
| | - Leiming Cai
- Department of Clinical Laboratory, Shanghai First People's Hospital Baoshan Branch, Shanghai 200940, P.R. China
| | - L I Xie
- Department of Clinical Laboratory, Shanghai First People's Hospital Baoshan Branch, Shanghai 200940, P.R. China
| | - Ji'an Gu
- Department of Clinical Laboratory, Shanghai First People's Hospital Baoshan Branch, Shanghai 200940, P.R. China
| | - Xiong Chen
- Department of Obstetrics and Gynecology, Shanghai First People's Hospital Baoshan Branch, Shanghai 200940, P.R. China
| | - Longyi Tan
- Department of Clinical Laboratory, Shanghai First People's Hospital Baoshan Branch, Shanghai 200940, P.R. China
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122
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Murphy MSQ, Casselman RC, Tayade C, Smith GN. Differential expression of plasma microRNA in preeclamptic patients at delivery and 1 year postpartum. Am J Obstet Gynecol 2015; 213:367.e1-9. [PMID: 25981845 DOI: 10.1016/j.ajog.2015.05.013] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 03/17/2015] [Accepted: 05/07/2015] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Preeclampsia (PE) is a hypertensive disorder of pregnancy characterized by widespread maternal endothelial dysfunction. Although clinical signs subside following delivery, long-term risks associated with PE include hypertension, stroke, and cardiovascular disease. MicroRNAs (miRNAs) are emerging as critical regulators of biological function, and while alterations to the miRNAome have been described in the context of pregnancy and PE, the postpartum implications of PE on miRNA expression is unknown. The goal of this study was to characterize circulating miRNA profiles at the time of delivery and at 1 year postpartum for women who did and did not develop PE. STUDY DESIGN Using a targeted reverse transcription polymerase chain reaction approach, selected miRNAs putatively involved in the pathophysiology of PE were examined in 17 normotensive control and 13 PE maternal plasma samples at the time of delivery and 1 year postpartum. Ingenuity Pathway Analysis was used to map putative messenger RNA targets of differentially expressed miRNA to global molecular networks based on gene function. RESULTS Significant increases (P < .05) in 7 miRNAs with antiangiogenic, inflammatory, and apoptotic functions (miR-98-5p, miR-222-3p, miR-210-3p, miR-155-5p, miR-296-3p, miR-181a-5p, miR-29b-3p) were evident in maternal plasma at the time of severe PE compared to time-matched controls. Plasma samples from individuals who developed mild PE exhibited no changes compared to control samples for the subset of miRNAs analyzed here. Differential expression of plasma miRNA at the time of delivery for women with PE were largely resolved at 1 year postpartum, and reduced expression of only miR-221-3p (P < .05) was evident. Network analysis of putative targets of differentially regulated miRNA identified 11 interacting networks with enrichment for proteins involved in cardiovascular disease, organ system development and function, and cell signaling and interaction. CONCLUSION The systemic effect of PE on maternal systems is evident in the circulating miRNAome with substantial alterations in miRNA expression in women who develop severe PE. In addition we provide novel evidence of disruption to miR-221 expression 1 year postpartum following a pregnancy complicated by PE compared to normotensive time-matched controls, which may allude to persistent inflammation in these women after delivery.
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Affiliation(s)
- Malia Su-Qin Murphy
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Richard Cary Casselman
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Chandrakant Tayade
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Graeme Neil Smith
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada; Department of Obstetrics and Gynecology, Kingston General Hospital, Kingston, Ontario, Canada.
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123
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[Circulating nucleic acids and infertility]. ACTA ACUST UNITED AC 2015; 43:593-8. [PMID: 26298813 DOI: 10.1016/j.gyobfe.2015.07.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 07/17/2015] [Indexed: 01/05/2023]
Abstract
Circulating nucleic acids (cell-free DNA and microRNAs) have for particularity to be easily detectable in the biological fluids of the body. Therefore, they constitute biomarkers of interest in female and male infertility care. Indeed, in female, they can be used to detect ovarian reserve disorders (polycystic ovary syndrome and low functional ovarian reserve) as well as to assess follicular microenvironment quality. Moreover, in men, their expression levels can vary in case of spermatogenesis abnormalities. Finally, circulating nucleic acids have also the ability to predict successfully the quality of in vitro embryo development. Their multiple contributions during assisted reproductive technology (ART) make of them biomarkers of interest, for the development of new diagnostic and/or prognostic tests, applied to our specialty. Circulating nucleic acids would so offer the possibility of personalized medical care for infertile couples in ART.
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124
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Miura K, Higashijima A, Murakami Y, Tsukamoto O, Hasegawa Y, Abe S, Fuchi N, Miura S, Kaneuchi M, Masuzaki H. Circulating chromosome 19 miRNA cluster microRNAs in pregnant women with severe pre-eclampsia. J Obstet Gynaecol Res 2015. [DOI: 10.1111/jog.12749] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Kiyonori Miura
- Department of Obstetrics and Gynecology; Nagasaki University Graduate School of Biomedical Sciences; Nagasaki Japan
| | - Ai Higashijima
- Department of Obstetrics and Gynecology; Nagasaki University Graduate School of Biomedical Sciences; Nagasaki Japan
| | - Yuko Murakami
- Department of Obstetrics and Gynecology; Nagasaki University Graduate School of Biomedical Sciences; Nagasaki Japan
| | - Ozora Tsukamoto
- Department of Obstetrics and Gynecology; Nagasaki University Graduate School of Biomedical Sciences; Nagasaki Japan
| | - Yuri Hasegawa
- Department of Obstetrics and Gynecology; Nagasaki University Graduate School of Biomedical Sciences; Nagasaki Japan
| | - Shuhei Abe
- Department of Obstetrics and Gynecology; Nagasaki University Graduate School of Biomedical Sciences; Nagasaki Japan
| | - Naoki Fuchi
- Department of Obstetrics and Gynecology; Nagasaki University Graduate School of Biomedical Sciences; Nagasaki Japan
| | - Shoko Miura
- Department of Obstetrics and Gynecology; Nagasaki University Graduate School of Biomedical Sciences; Nagasaki Japan
| | - Masanori Kaneuchi
- Department of Obstetrics and Gynecology; Nagasaki University Graduate School of Biomedical Sciences; Nagasaki Japan
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Lycoudi A, Mavreli D, Mavrou A, Papantoniou N, Kolialexi A. miRNAs in pregnancy-related complications. Expert Rev Mol Diagn 2015; 15:999-1010. [PMID: 26051307 DOI: 10.1586/14737159.2015.1053468] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
MicroRNAs (miRNAs) constitute a highly conserved class of small non-coding RNAs, involved in post-transcriptional regulation processes by modifying the expression of specific mRNAs. During placental development, cell differentiation, adhesion, migration, apoptosis and angiogenesis are regulated by specific miRNAs and aberrant expression has been associated with the pathogenesis of pregnancy-related complications. Recent studies focusing on placental and maternal peripheral blood miRNA profiling showed different expression between normal and complicated pregnancies, providing valuable information about the pathophysiological role of miRNAs and identifying potential biomarkers for monitoring pregnancy complications. This review summarizes the current knowledge in the field and presents the possible use of miRNAs as biomarkers for early detection and monitoring of these complications.
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126
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Harapan H, Andalas M. The role of microRNAs in the proliferation, differentiation, invasion, and apoptosis of trophoblasts during the occurrence of preeclampsia—A systematic review. Tzu Chi Med J 2015. [DOI: 10.1016/j.tcmj.2015.05.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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127
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Sadovsky Y, Mouillet JF, Ouyang Y, Bayer A, Coyne CB. The Function of TrophomiRs and Other MicroRNAs in the Human Placenta. Cold Spring Harb Perspect Med 2015; 5:a023036. [PMID: 25877393 DOI: 10.1101/cshperspect.a023036] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In eutherian organisms, the placenta interfaces the fetal and maternal environments. Located at the placental villous surface, in direct contact with maternal blood, is the trophoblast layer, which mediates the crucial maternal-fetal exchange of gases, nutrients, and waste products, produces hormones that support the pregnancy, and provides immunologic defense. Discovery of microRNAs (miRNAs) and their role in development, differentiation, and homeostatic resilience has increased our understanding of genomic and epigenomic networks that regulate placental function. Moreover, unique miRNA species, which are expressed by human trophoblasts and are termed "trophomiRs," may show specialized functions during normal and pathological pregnancies. Placental miRNAs, packaged within exosomes and other vesicles or bound in protein complexes, are capable of communicating distinctive signals to maternal and/or fetal tissues. Additional research may usher in the use of circulating miRNAs as pregnancy-related disease biomarkers, providing new diagnostic and therapeutic options during pregnancy.
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Affiliation(s)
- Yoel Sadovsky
- Magee-Womens Research Institute, Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15213 Department of Microbiology and Molecular Genetics, University of Pittsburgh, Pittsburgh, Pennsylvania 15219
| | - Jean-Francois Mouillet
- Magee-Womens Research Institute, Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15213
| | - Yingshi Ouyang
- Magee-Womens Research Institute, Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15213
| | - Avraham Bayer
- Magee-Womens Research Institute, Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15213
| | - Carolyn B Coyne
- Department of Microbiology and Molecular Genetics, University of Pittsburgh, Pittsburgh, Pennsylvania 15219
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Hudecova I. Digital PCR analysis of circulating nucleic acids. Clin Biochem 2015; 48:948-56. [PMID: 25828047 DOI: 10.1016/j.clinbiochem.2015.03.015] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2015] [Accepted: 03/19/2015] [Indexed: 12/18/2022]
Abstract
Detection of plasma circulating nucleic acids (CNAs) requires the use of extremely sensitive and precise methods. The commonly used quantitative real-time polymerase chain reaction (PCR) poses certain technical limitations in relation to the precise measurement of CNAs whereas the costs of massively parallel sequencing are still relatively high. Digital PCR (dPCR) now represents an affordable and powerful single molecule counting strategy to detect minute amounts of genetic material with performance surpassing many quantitative methods. Microfluidic (chip) and emulsion (droplet)-based technologies have already been integrated into platforms offering hundreds to millions of nanoliter- or even picoliter-scale reaction partitions. The compelling observations reported in the field of cancer research, prenatal testing, transplantation medicine and virology support translation of this technology into routine use. Extremely sensitive plasma detection of rare mutations originating from tumor or placental cells among a large background of homologous sequences facilitates unraveling of the early stages of cancer or the detection of fetal mutations. Digital measurement of quantitative changes in plasma CNAs associated with cancer or graft rejection provides valuable information on the monitoring of disease burden or the recipient's immune response and subsequent therapy treatment. Furthermore, careful quantitative assessment of the viral load offers great value for effective monitoring of antiviral therapy for immunosuppressed or transplant patients. The present review describes the inherent features of dPCR that make it exceptionally robust in precise and sensitive quantification of CNAs. Moreover, I provide an insight into the types of potential clinical applications that have been developed by researchers to date.
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Affiliation(s)
- Irena Hudecova
- Centre for Research into Circulating Fetal Nucleic Acids, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China; Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong SAR, China.
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129
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Circulating microRNAs as clinical biomarkers in the predictions of pregnancy complications. BIOMED RESEARCH INTERNATIONAL 2015; 2015:294954. [PMID: 25699269 PMCID: PMC4325204 DOI: 10.1155/2015/294954] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 09/30/2014] [Accepted: 10/07/2014] [Indexed: 01/08/2023]
Abstract
Predicting pregnancy complications is a major topic for clinicians and biologists for maternal and fetal monitoring. Noninvasive biomarkers in maternal blood such as circulating microRNAs (miRNAs) are promising molecules to predict pregnancy disorders. miRNAs are noncoding short RNAs that regulate mRNA expression by repressing the translation or cleaving the transcript. miRNAs are released to the extracellular systemic circulation via exosomes. The discovery of plasma- or serum-derived miRNAs and of free-circulating exosomes that contain miRNAs provides useful information about the physiological or pathophysiological roles of the miRNAs. Specific placental miRNAs are present in maternal plasma in different ways depending on whether the pregnancy is normal or pathological or if there is no pregnancy. This paper focuses on placental miRNAs and extracellular miRNAs to the placenta whose misregulation could lead to pregnancy complications.
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Hromadnikova I, Kotlabova K, Hympanova L, Doucha J, Krofta L. First trimester screening of circulating C19MC microRNAs can predict subsequent onset of gestational hypertension. PLoS One 2014; 9:e113735. [PMID: 25502889 PMCID: PMC4266496 DOI: 10.1371/journal.pone.0113735] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Accepted: 10/30/2014] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVE The objective of the study was to evaluate risk assessment for gestational hypertension based on the profile of circulating placental specific C19MC microRNAs in early pregnancy. STUDY DESIGN The prospective longitudinal cohort study of women enrolled at first trimester screening at 10 to 13 weeks was carried out (n = 267). Relative quantification of placental specific C19MC microRNAs (miR-516-5p, miR-517*, miR-518b, miR-520a*, miR-520h, miR-525 and miR-526a) was determined in 28 normal pregnancies and 18 pregnancies which developed gestational hypertension using real-time PCR and a comparative Ct method relative to synthetic C. elegans microRNA (cel-miR-39). RESULTS Increased extracellular C19MC microRNA plasmatic levels (miR-516-5p, p<0.001; miR-517*, p = 0.007; miR-520h, p<0.001; miR-518b, p = 0.002) were detected in patients destined to develop gestational hypertension. MiR-520h had the best predictive performance with a PPV of 84.6% at a 7.1% false positive rate. The combination of miR-520h and miR-518b was able to predict 82.6% of women at the same false positive rate. The overall predictive capacity of single miR-518b (73.3% at 14.3% FPR), miR-516-5p (70.6% at 17.9% FPR) and miR-517* (57.9% at 28.6% FPR) biomarkers was lower. CONCLUSION The study brought interesting finding that the up-regulation of miR-516-5p, miR-517*, miR-520h and miR-518b is associated with a risk of later development of gestational hypertension. First trimester screening of extracellular miR-520h alone or in combination with miR-518b identified a significant proportion of women with subsequent gestational hypertension.
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Affiliation(s)
- Ilona Hromadnikova
- Department of Molecular Biology and Cell Pathology, Third Faculty of Medicine, Charles University, Ruska 87, 100 00 Prague, Czech Republic
| | - Katerina Kotlabova
- Department of Molecular Biology and Cell Pathology, Third Faculty of Medicine, Charles University, Ruska 87, 100 00 Prague, Czech Republic
| | - Lucie Hympanova
- Department of Molecular Biology and Cell Pathology, Third Faculty of Medicine, Charles University, Ruska 87, 100 00 Prague, Czech Republic
- Institute for the Care of the Mother and Child, Third Faculty of Medicine, Charles University, Podolske nabrezi 157/36, 147 00 Prague, Czech Republic
| | - Jindrich Doucha
- Clinic of Obstetrics and Gynecology, Second Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague, Czech Republic
| | - Ladislav Krofta
- Institute for the Care of the Mother and Child, Third Faculty of Medicine, Charles University, Podolske nabrezi 157/36, 147 00 Prague, Czech Republic
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131
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Katoh M. Cardio-miRNAs and onco-miRNAs: circulating miRNA-based diagnostics for non-cancerous and cancerous diseases. Front Cell Dev Biol 2014; 2:61. [PMID: 25364765 PMCID: PMC4207049 DOI: 10.3389/fcell.2014.00061] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 09/29/2014] [Indexed: 12/11/2022] Open
Abstract
Cardiovascular diseases and cancers are the leading causes of morbidity and mortality in the world. MicroRNAs (miRNAs) are short non-coding RNAs that primarily repress target mRNAs. Here, miR-24, miR-125b, miR-195, and miR-214 were selected as representative cardio-miRs that are upregulated in human heart failure. To bridge the gap between miRNA studies in cardiology and oncology, the targets and functions of these miRNAs in cardiovascular diseases and cancers will be reviewed. ACVR1B, BCL2, BIM, eNOS, FGFR3, JPH2, MEN1, MYC, p16, and ST7L are miR-24 targets that have been experimentally validated in human cells. ARID3B, BAK1, BCL2, BMPR1B, ERBB2, FGFR2, IL6R, MUC1, SITR7, Smoothened, STAT3, TET2, and TP53 are representative miR-125b targets. ACVR2A, BCL2, CCND1, E2F3, GLUT3, MYB, RAF1, VEGF, WEE1, and WNT7A are representative miR-195 targets. BCL2L2, ß-catenin, BIM, CADM1, EZH2, FGFR1, NRAS, PTEN, TP53, and TWIST1 are representative miR-214 targets. miR-125b is a good cardio-miR that protects cardiomyocytes; miR-195 is a bad cardio-miR that elicits cardiomyopathy and heart failure; miR-24 and miR-214 are bi-functional cardio-miRs. By contrast, miR-24, miR-125b, miR-195, and miR-214 function as oncogenic or tumor suppressor miRNAs in a cancer (sub)type-dependent manner. Circulating miR-24 is elevated in diabetes, breast cancer and lung cancer. Circulating miR-195 is elevated in acute myocardial infarction, breast cancer, prostate cancer and colorectal adenoma. Circulating miR-125b and miR-214 are elevated in some cancers. Cardio-miRs and onco-miRs bear some similarities in functions and circulation profiles. miRNAs regulate WNT, FGF, Hedgehog and other signaling cascades that are involved in orchestration of embryogenesis and homeostasis as well as pathogenesis of human diseases. Because circulating miRNA profiles are modulated by genetic and environmental factors and are dysregulated by genetic and epigenetic alterations in somatic cells, circulating miRNA association studies (CMASs) within several thousands of cases each for common non-cancerous diseases and major cancers are necessary for miRNA-based diagnostics.
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Affiliation(s)
- Masaru Katoh
- Department of Omics Network, National Cancer Center Tokyo, Japan
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132
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Scalici E, Traver S, Mullet T, Ferrières A, Monforte M, Vintejoux E, Hamamah S. Acides nucléiques circulants et fécondation in vitro. ACTA ACUST UNITED AC 2014; 42:696-701. [DOI: 10.1016/j.gyobfe.2014.07.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2014] [Accepted: 07/07/2014] [Indexed: 12/22/2022]
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133
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Li Q, Pan Z, Wang X, Gao Z, Ren C, Yang W. miR-125b-1-3p inhibits trophoblast cell invasion by targeting sphingosine-1-phosphate receptor 1 in preeclampsia. Biochem Biophys Res Commun 2014; 453:57-63. [PMID: 25251470 DOI: 10.1016/j.bbrc.2014.09.059] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Accepted: 09/15/2014] [Indexed: 12/22/2022]
Abstract
Preeclampsia (PE) is the leading cause of maternal and perinatal mortality and morbidity. Understanding the molecular mechanisms underlying placentation facilitates the development of better intervention of this disease. MicroRNAs are strongly implicated in the pathogenesis of this syndrome. In current study, we found that miR-125b-1-3p was elevated in placentas derived from preeclampsia patients. Transfection of miR-125b-1-3p mimics significantly inhibited the invasiveness of human trophoblast cells, whereas miR-125b-1-3p inhibitor enhanced trophoblast cell invasion. Luciferase assays identified that S1PR1 was a novel direct target of miR-125b-1-3p in the placenta. Overexpression of S1PR1 could reverse the inhibitory effect of miR-125b-1-3p on the invasion of trophoblast cells. These findings suggested that abnormal expression of miR-125b-1-3p might contribute to the pathogenesis of preeclampsia.
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Affiliation(s)
- Qinghua Li
- Public Health College, Weifang Medical University, Weifang 261053, China
| | - Zhifang Pan
- School of Biological Sciences, Weifang Medical University, Weifang 261053, China
| | - Xuejian Wang
- School of Biological Sciences, Weifang Medical University, Weifang 261053, China
| | - Zhiqin Gao
- School of Biological Sciences, Weifang Medical University, Weifang 261053, China
| | - Chune Ren
- Department of Obstetrics and Gynecology, Affiliated Hospital of Weifang Medical University, Weifang 261041, China
| | - Weiwei Yang
- School of Biological Sciences, Weifang Medical University, Weifang 261053, China.
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134
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Abstract
We provide a review of microRNA (miRNA) related to human implantation which shows the potential diagnostic role of miRNAs in impaired endometrial receptivity, altered embryo development, implantation failure after assisted reproduction technology, and in ectopic pregnancy and pregnancies of unknown location. MicroRNAs may be emerging diagnostic markers and potential therapeutic tools for understanding implantation disorders. However, further research is needed before miRNAs can be used in clinical practice for identifying and treating implantation failure.
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135
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Traver S, Assou S, Scalici E, Haouzi D, Al-Edani T, Belloc S, Hamamah S. Cell-free nucleic acids as non-invasive biomarkers of gynecological cancers, ovarian, endometrial and obstetric disorders and fetal aneuploidy. Hum Reprod Update 2014; 20:905-23. [PMID: 24973359 DOI: 10.1093/humupd/dmu031] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Proper folliculogenesis is fundamental to obtain a competent oocyte that, once fertilized, can support the acquisition of embryo developmental competence and pregnancy. MicroRNAs (miRNAs) are crucial regulators of folliculogenesis, which are expressed in the cumulus-oocyte complex and in granulosa cells and some can also be found in the bloodstream. These circulating miRNAs are intensively studied and used as diagnostic/prognostic markers of many diseases, including gynecological and pregnancy disorders. In addition, serum contains small amounts of cell-free DNA (cfDNA), presumably resulting from the release of genetic material from apoptotic/necrotic cells. The quantification of nucleic acids in serum samples could be used as a diagnostic tool for female infertility. METHODS An overview of the published literature on miRNAs, and particularly on the use of circulating miRNAs and cfDNA as non-invasive biomarkers of gynecological diseases, was performed (up to January 2014). RESULTS In the past decade, cell-free nucleic acids have been studied for potential use as biomarkers in many diseases, particularly in gynecological cancers, ovarian and endometrial disorders, as well as in pregnancy-related pathologies and fetal aneuploidy. The data strongly suggest that the concentration of cell-free nucleic acids in serum from IVF patients or in embryo culture medium could be related to the ovarian hormone status and embryo quality, respectively, and be used as a non-invasive biomarker of IVF outcome. CONCLUSIONS The profiling of circulating nucleic acids, such as miRNAs and cfDNA, opens new perspectives for the diagnosis/prognosis of ovarian disorders and for the prediction of IVF outcomes, namely (embryo quality and pregnancy).
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Affiliation(s)
- S Traver
- CHU Montpellier, Institute for Research in Biotherapy, Hôpital Saint-Eloi, INSERM U1040, Montpellier, France
| | - S Assou
- CHU Montpellier, Institute for Research in Biotherapy, Hôpital Saint-Eloi, INSERM U1040, Montpellier, France Université Montpellier 1, UFR de Médecine, Montpellier, France
| | - E Scalici
- CHU Montpellier, Institute for Research in Biotherapy, Hôpital Saint-Eloi, INSERM U1040, Montpellier, France Université Montpellier 1, UFR de Médecine, Montpellier, France
| | - D Haouzi
- CHU Montpellier, Institute for Research in Biotherapy, Hôpital Saint-Eloi, INSERM U1040, Montpellier, France
| | - T Al-Edani
- CHU Montpellier, Institute for Research in Biotherapy, Hôpital Saint-Eloi, INSERM U1040, Montpellier, France Université Montpellier 1, UFR de Médecine, Montpellier, France
| | - S Belloc
- Eylau-Unilabs Laboratory, Paris, France
| | - S Hamamah
- CHU Montpellier, Institute for Research in Biotherapy, Hôpital Saint-Eloi, INSERM U1040, Montpellier, France Université Montpellier 1, UFR de Médecine, Montpellier, France ART-PGD Department, Hôpital Arnaud de Villeneuve, CHU Montpellier, Montpellier, France
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136
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Luque A, Farwati A, Crovetto F, Crispi F, Figueras F, Gratacós E, Aran JM. Usefulness of circulating microRNAs for the prediction of early preeclampsia at first-trimester of pregnancy. Sci Rep 2014; 4:4882. [PMID: 24811064 PMCID: PMC4013938 DOI: 10.1038/srep04882] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Accepted: 04/10/2014] [Indexed: 02/07/2023] Open
Abstract
To assess the usefulness of circulating microRNAs (miRNAs) as non-invasive molecular biomarkers for early prediction of preeclampsia, a differential miRNA profiling analysis was performed in first-trimester pooled sera from 31 early preeclampsia patients, requiring delivery before 34 weeks of gestation, and 44 uncomplicated pregnancies using microfluidic arrays. Among a total of 754 miRNAs analyzed, the presence of 63 miRNAs (8%) was consistently documented in the sera from preeclampsia and control samples. Nevertheless, only 15 amplified miRNAs (2%) seemed to be differentially, although modestly, represented (fold change range: 0.4–1.4). After stem loop RT-qPCR from individual samples, the statistical analysis confirmed that none of the most consistent and differentially represented miRNAs (3 overrepresented and 4 underrepresented) were differentially abundant in serum from preeclamptic pregnancies compared with serum from normal pregnancies. Therefore, maternal serum miRNA assessment at first-trimester of pregnancy does not appear to have any predictive value for early preeclampsia.
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Affiliation(s)
- Ana Luque
- 1] Human Molecular Genetics Group, IDIBELL, L'Hospitalet de Llobregat, 08907 Barcelona, Spain [2]
| | - Abduljalil Farwati
- 1] Human Molecular Genetics Group, IDIBELL, L'Hospitalet de Llobregat, 08907 Barcelona, Spain [2]
| | - Francesca Crovetto
- 1] Department of Maternal-Fetal Medicine, Institute Clínic of Gynecology, Obstetrics and Neonatology (ICGON), Hospital Clinic-IDIBAPS, University of Barcelona and Centre for Biomedical Research on Rare Diseases (CIBERER), Barcelona, Spain [2] Department of Obstetrics and Gynecology, Fondazione Cà Granda, Ospedale Maggiore Policlinico; Università degli Studi di Milano, Milan, Italy
| | - Fatima Crispi
- Department of Maternal-Fetal Medicine, Institute Clínic of Gynecology, Obstetrics and Neonatology (ICGON), Hospital Clinic-IDIBAPS, University of Barcelona and Centre for Biomedical Research on Rare Diseases (CIBERER), Barcelona, Spain
| | - Francesc Figueras
- Department of Maternal-Fetal Medicine, Institute Clínic of Gynecology, Obstetrics and Neonatology (ICGON), Hospital Clinic-IDIBAPS, University of Barcelona and Centre for Biomedical Research on Rare Diseases (CIBERER), Barcelona, Spain
| | - Eduard Gratacós
- Department of Maternal-Fetal Medicine, Institute Clínic of Gynecology, Obstetrics and Neonatology (ICGON), Hospital Clinic-IDIBAPS, University of Barcelona and Centre for Biomedical Research on Rare Diseases (CIBERER), Barcelona, Spain
| | - Josep M Aran
- Human Molecular Genetics Group, IDIBELL, L'Hospitalet de Llobregat, 08907 Barcelona, Spain
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137
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Kaur U, Chakrabarti SS, Pandey BL. MicroRNAs and cardiovascular medicine. SAGE Open Med 2014; 2:2050312114524952. [PMID: 26770714 PMCID: PMC4607215 DOI: 10.1177/2050312114524952] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Accepted: 01/15/2014] [Indexed: 11/17/2022] Open
Abstract
MicroRNAs are non-coding RNA sequences that act as regulators of gene expression. They are aberrantly expressed in many pathological conditions. Cardiovascular diseases are among the leading causes of morbidity and mortality in the general population. Various knock-in and knockdown approaches have shown abnormal signature patterns of microRNAs in cardiovascular conditions like cardiac hypertrophy, myocardial infarction, heart failure, arrhythmias and vascular proliferative diseases. Since a single microRNA targets many genes, modulating a single microRNA involved in a disease carries a possible risk of undesirable side effects. The review focuses on current understanding of microRNAs in cardiovascular conditions, the possible underlying mechanisms and various approaches of modulating microRNAs.
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Affiliation(s)
- Upinder Kaur
- Department of Pharmacology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - S S Chakrabarti
- Department of General Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - B L Pandey
- Department of Pharmacology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
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138
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Li JYZ, Yong TY, Michael MZ, Gleadle JM. MicroRNAs: are they the missing link between hypoxia and pre-eclampsia? Hypertens Pregnancy 2013; 33:102-14. [PMID: 24354525 DOI: 10.3109/10641955.2013.832772] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Pre-eclampsia is a multisystem disorder that occurs in the second half of pregnancy affecting 5% of pregnancies. It remains the leading cause of maternal and perinatal mortality and morbidity worldwide. Impaired placental implantation, hypoxia, endothelial dysfunction and systemic inflammation are thought to have a role in the pathogenesis of pre-eclampsia. MicroRNAs (miRNAs) are short non-coding RNAs. They are important regulators of gene expression and have been found to affect cell development, proliferation, differentiation and function. Specific patterns of miRNAs have been detected in the placenta and there is altered miRNA expression in the placenta of patients with pre-eclampsia to but their role in the pathogenesis remains unclear. Furthermore, deregulated miRNAs have also been reported in human villous trophoblasts during hypoxic stress. One of the more consistently elevated miRNAs by hypoxia and in the placenta of patients with pre-eclampsia is miR-210. Whether such miRNAs are bystander markers of hypoxia, or are directly involved in the pathogenesis of pre-eclampsia, needs to be clarified. There is potential for miRNAs to be used as predictors, markers or therapy in pre-eclampsia. This review provides current knowledge about miRNAs, particularly hypoxia-related miRNAs and the interaction of hypoxia, miRNAs and placenta in pre-eclampsia.
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139
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Campos CB, Marques TM, Pereira RW, Sandrim VC. Reduced circulating miR-196b levels is associated with preeclampsia. Pregnancy Hypertens 2013; 4:11-3. [PMID: 26104247 DOI: 10.1016/j.preghy.2013.10.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2013] [Revised: 08/27/2013] [Accepted: 10/17/2013] [Indexed: 10/26/2022]
Abstract
MicroRNAs (miRs) are small noncoding RNAs, highly stable in plasma, that regulate gene expression by base-pairing to the 3'-untranslated region of target mRNAs. We compared the expression of 3 circulating miRs (miR-125b, miR-146a, and miR-196b), which is related to the control of cell proliferation, differentiation, and apoptosis in preeclamptic (n=19) and healthy pregnant women (n=14). We found that women with preeclampsia (PE) presented lower expression of miR-196b (-2.9-fold change). The other miRs were at similar levels. This study is the first to demonstrate this difference, and highlights new opportunities for investigation into the role of miRs in PE.
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Affiliation(s)
- C B Campos
- Núcleo de Pós-Graduação e Pesquisa, Santa Casa de Belo Horizonte, Rua Domingos Vieira 590, Belo Horizonte, MG, Brazil
| | - T M Marques
- Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, SGAN 916, Asa Norte, Brasília, DF 70790-160, Brazil
| | - R W Pereira
- Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, SGAN 916, Asa Norte, Brasília, DF 70790-160, Brazil
| | - V C Sandrim
- Núcleo de Pós-Graduação e Pesquisa, Santa Casa de Belo Horizonte, Rua Domingos Vieira 590, Belo Horizonte, MG, Brazil.
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140
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Whitehead CL, Teh WT, Walker SP, Leung C, Larmour L, Tong S. Circulating MicroRNAs in maternal blood as potential biomarkers for fetal hypoxia in-utero. PLoS One 2013; 8:e78487. [PMID: 24282500 PMCID: PMC3839903 DOI: 10.1371/journal.pone.0078487] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Accepted: 09/13/2013] [Indexed: 12/18/2022] Open
Abstract
Stillbirth affects 1 in 200 pregnancies and commonly arises due to a lack of oxygen supply to the fetus. Current tests to detect fetal hypoxia in-utero lack the sensitivity to identify many babies at risk. Emerging evidence suggests that microRNAs derived from the placenta circulate in the maternal blood during pregnancy and may serve as non-invasive biomarkers for pregnancy complications. In this study, we examined the expression of miRs known to be regulated by hypoxia in two clinical settings of significant fetal hypoxia: 1) labour and 2) fetal growth restriction. Six miRs (miR 210, miR 21, miR 424, miR 199a, miR 20b, and miR 373) were differentially expressed in pregnancies complicated by fetal hypoxia. In healthy term pregnancies there was a 4.2 fold increase in miR 210 (p<0.01), 2.7 fold increase in miR 424 (p<0.05), 2.6 fold increase in miR 199a (p<0.01) and 2.3 fold increase in miR 20b (p<0.05) from prior to labour to delivery of the fetus. Furthermore, the combined expression of miR 21 and miR 20b correlated with the degree of fetal hypoxia at birth determined by umbilical cord lactate delivery (r = 0.79, p = 0.03). In pregnancies complicated by severe preterm fetal growth restriction there was upregulation of the hypoxia-regulated miRs compared to gestation-matched controls: 3.6 fold in miR 210 (p<0.01), 3.6 fold in miR 424 (p<0.05), 5.9 fold in miR 21 (p<0.01), 3.8 fold in miR 199a (p<0.01) and 3.7 fold in miR 20b (p<0.01). Interestingly, the expression of miR 373 in gestation matched controls was very low, but was very highly expressed in FGR (p<0.0001). Furthermore, the expression increased in keeping with the degree of in-utero hypoxia estimated by fetal Doppler velocimetry. We conclude quantifying hypoxia-regulated miRs in the maternal blood may identify pregnancies at risk of fetal hypoxia, enabling early intervention to improve perinatal outcomes.
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Affiliation(s)
- Clare L. Whitehead
- Translational Obstetrics Group, Department of Obstetrics and Gynaecology, Mercy Hospital for Women, Heidelberg, Victoria, Australia
- * E-mail:
| | - Wan Tinn Teh
- Department of Obstetrics and Gynaecology, University of Melbourne, Royal Hospital for Women, Carlton, Victoria, Australia
| | - Susan P. Walker
- Department of Obstetrics and Gynaecology, University of Melbourne, Mercy Hospital for Women, Heidelberg, Victoria, Australia
| | - Cheryl Leung
- Department of Obstetrics and Gynaecology, Monash Medical Centre, Clayton, Victoria, Australia
| | - Luke Larmour
- Department of Obstetrics and Gynaecology, Monash Medical Centre, Clayton, Victoria, Australia
| | - Stephen Tong
- Translational Obstetrics Group, Department of Obstetrics and Gynaecology, Mercy Hospital for Women, Heidelberg, Victoria, Australia
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141
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Hromadnikova I, Kotlabova K, Ondrackova M, Kestlerova A, Novotna V, Hympanova L, Doucha J, Krofta L. Circulating C19MC microRNAs in preeclampsia, gestational hypertension, and fetal growth restriction. Mediators Inflamm 2013; 2013:186041. [PMID: 24347821 PMCID: PMC3848305 DOI: 10.1155/2013/186041] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Revised: 09/24/2013] [Accepted: 09/30/2013] [Indexed: 12/26/2022] Open
Abstract
The objective of the study was to identify the profile of circulating C19MC microRNAs (miR-516-5p, miR-517*, miR-518b, miR-520a*, miR-520h, miR-525, and miR-526a) in patients with established preeclampsia (n = 63), fetal growth restriction (n = 27), and gestational hypertension (n = 23). We examined the correlation between plasmatic concentrations and expression levels of microRNAs and the severity of the disease with respect to clinical signs, requirements for the delivery, and Doppler ultrasound parameters. Using absolute and relative quantification approaches, increased extracellular C19MC microRNA levels (miR-516-5p, P = 0.037, P = 0.009; miR-517*, P = 0.033, P = 0.043; miR-520a*, P = 0.001, P = 0.009; miR-525, P = 0.026, P = 0.01; miR-526a, P = 0.03, P = 0.035) were detected in patients with preeclampsia. The association analysis pointed to no relationship between C19MC microRNA plasmatic concentrations and expression profile and identified risk factors for a poorer perinatal outcome. However, the dependence between the levels of plasmatic C19MC microRNAs and the pulsatility index in the middle cerebral artery and the values of cerebroplacental ratio was demonstrated. The study brought the interesting finding that the upregulation of miR-516-5p, miR-517*, miR-520a*, miR-525, and miR-526a is a characteristic phenomenon of established preeclampsia.
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Affiliation(s)
- Ilona Hromadnikova
- Department of Molecular Biology and Cell Pathology, Third Faculty of Medicine, Charles University, Ruska 87, 100 00 Prague, Czech Republic
| | - Katerina Kotlabova
- Department of Molecular Biology and Cell Pathology, Third Faculty of Medicine, Charles University, Ruska 87, 100 00 Prague, Czech Republic
| | - Marketa Ondrackova
- Department of Molecular Biology and Cell Pathology, Third Faculty of Medicine, Charles University, Ruska 87, 100 00 Prague, Czech Republic
| | - Andrea Kestlerova
- Institute for the Care of the Mother and Child, Third Faculty of Medicine, Charles University, Podolske Nabrezi 157/36, 147 00 Prague, Czech Republic
| | - Veronika Novotna
- Institute for the Care of the Mother and Child, Third Faculty of Medicine, Charles University, Podolske Nabrezi 157/36, 147 00 Prague, Czech Republic
| | - Lucie Hympanova
- Department of Molecular Biology and Cell Pathology, Third Faculty of Medicine, Charles University, Ruska 87, 100 00 Prague, Czech Republic
- Institute for the Care of the Mother and Child, Third Faculty of Medicine, Charles University, Podolske Nabrezi 157/36, 147 00 Prague, Czech Republic
| | - Jindrich Doucha
- Clinic of Obstetrics and Gynecology, Second Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague, Czech Republic
| | - Ladislav Krofta
- Institute for the Care of the Mother and Child, Third Faculty of Medicine, Charles University, Podolske Nabrezi 157/36, 147 00 Prague, Czech Republic
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Morales-Prieto DM, Ospina-Prieto S, Chaiwangyen W, Schoenleben M, Markert UR. Pregnancy-associated miRNA-clusters. J Reprod Immunol 2013; 97:51-61. [PMID: 23432872 DOI: 10.1016/j.jri.2012.11.001] [Citation(s) in RCA: 186] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Revised: 10/25/2012] [Accepted: 11/20/2012] [Indexed: 12/19/2022]
Abstract
MicroRNAs (miRNAs) are expressed in the placenta and can be detected in maternal plasma. An increasing number of studies have been published on the cellular origin, distribution and function of miRNAs in pregnancy. Specific miRNA profiles have been described for the placenta, maternal plasma and several pregnancy disorders. It has been observed that numerous miRNAs, which are predominantly or exclusively expressed during pregnancy, are clustered in chromosomal regions, may be controlled by the same promoters, may have similar seed regions and targets, and work synergistically. The three most eminent clusters are the chromosome 19 miRNA cluster (C19MC), C14MC and miR-371-3 cluster, which is also localized on chromosome 19. MiRNA members of these clusters are not only detected in the placenta, but also in other compartments, e.g. in serum where they have the potential to become novel biomarkers of pregnancy disorders. Additionally, some members are also expressed in a variety of tumors. Antagonism of selected miRNAs or their targets may lead to novel strategies for the development of new drug classes in pregnancy disorders or other diseases. This review summarizes current knowledge on the pregnancy-related miRNA clusters - the C19MC, C14MC and miR-371-3 cluster - in regard to pregnancy and also other, mostly pathological circumstances.
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Van Roosbroeck K, Pollet J, Calin GA. miRNAs and long noncoding RNAs as biomarkers in human diseases. Expert Rev Mol Diagn 2013; 13:183-204. [PMID: 23477558 DOI: 10.1586/erm.12.134] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Noncoding RNAs (ncRNAs) are transcripts that have no apparent protein-coding capacity; however, many ncRNAs have been found to play a major biological role in human physiology. Their deregulation is implicated in many human diseases, but their exact roles are only beginning to be elucidated. Nevertheless, ncRNAs are extensively studied as a novel source of biomarkers, and the fact that they can be detected in body fluids makes them extremely suitable for this purpose. The authors mainly focus on ncRNAs as biomarkers in cancer, but also touch on other human diseases such as cardiovascular diseases, autoimmune diseases, neurological disorders and infectious diseases. The authors discuss the established methods and provide a selection of emerging new techniques that can be used to detect and quantify ncRNAs. Finally, the authors discuss ncRNAs as a new strategy for therapeutic interventions.
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Affiliation(s)
- Katrien Van Roosbroeck
- Department of Experimental Therapeutics, Unit 1950, The University of Texas MD Anderson Cancer Center, 1881 East Road, Houston, TX 77054, USA
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144
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Murata K, Furu M, Yoshitomi H, Ishikawa M, Shibuya H, Hashimoto M, Imura Y, Fujii T, Ito H, Mimori T, Matsuda S. Comprehensive microRNA analysis identifies miR-24 and miR-125a-5p as plasma biomarkers for rheumatoid arthritis. PLoS One 2013; 8:e69118. [PMID: 23874885 PMCID: PMC3715465 DOI: 10.1371/journal.pone.0069118] [Citation(s) in RCA: 131] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Accepted: 06/03/2013] [Indexed: 12/31/2022] Open
Abstract
MicroRNAs (miRNAs) are present in human plasma and known as a non-invasive biomarker for cancer detection. Our study was designed to identify plasma miRNAs specific for rheumatoid arthritis (RA) by a comprehensive array approach. We performed a systematic, array-based miRNA analysis on plasma samples from three RA patients and three healthy controls (HCs). Plasma miRNAs with more than four times change or with significant (P<0.05) change in expression, or detectable only in RA plasma, were confirmed with plasma from eight RA patients and eight HCs using real-time quantitative PCR. Consistently detectable miRNAs that were significantly different between RA patients and HCs were chosen for further validation with 102 RA patients and 104 HCs. The area under curves (AUC) were calculated after plotting the receiver operating characteristic (ROC) curves. To determine if these miRNAs are specific for RA, the concentrations of these miRNAs were analyzed in 24 patients with osteoarthritis (OA), and 11 patients with systemic lupus erythematosus (SLE). The array analysis and the subsequent confirmation in larger patient cohort identified significant alterations in plasma levels of seven miRNAs. The highest AUC was found for miR-125a-5p, followed in order by miR-24 and miR-26a. Multivariable logistic regression analysis showed that miR-24, miR-30a-5p, and miR-125a-5p were crucial factors for making detection model of RA and provided a formula for Estimated Probability of RA by plasma MiRNA (ePRAM), employing miR-24, miR-30a-5p and miR-125a-5p, which showed increased diagnostic accuracy (AUC: 0.89). The level of miR-24, miR-125a-5p, and ePRAM in OA and SLE patients were lower than that in RA. There was no significant difference in detection for anti-citrullinated protein antibody (ACPA)-positive and ACPA-negative RA patients. These results suggest that the plasma concentrations of miR-24 and miR-125a-5p, and ePRAM are potential diagnostic markers of RA even if patients were ACPA-negative.
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Affiliation(s)
- Koichi Murata
- Kyoto University Graduate School of Medicine, Department of Orthopaedic Surgery, Sakyo, Kyoto, Japan
| | - Moritoshi Furu
- Kyoto University Graduate School of Medicine, Department of Orthopaedic Surgery, Sakyo, Kyoto, Japan
- Kyoto University Graduate School of Medicine, Department of the Control for Rheumatic Diseases, Sakyo, Kyoto, Japan
| | - Hiroyuki Yoshitomi
- Kyoto University Graduate School of Medicine, Department of Orthopaedic Surgery, Sakyo, Kyoto, Japan
- Kyoto University Graduate School of Medicine, Center for Innovation in Immunoregulative Technology and Therapeutics, Sakyo, Kyoto, Japan
- * E-mail:
| | - Masahiro Ishikawa
- Kyoto University Graduate School of Medicine, Department of Orthopaedic Surgery, Sakyo, Kyoto, Japan
| | - Hideyuki Shibuya
- Kyoto University Graduate School of Medicine, Department of Orthopaedic Surgery, Sakyo, Kyoto, Japan
| | - Motomu Hashimoto
- Kyoto University Graduate School of Medicine, Department of the Control for Rheumatic Diseases, Sakyo, Kyoto, Japan
- Kyoto University Graduate School of Medicine, Department of Rheumatology and Clinical Immunology, Sakyo, Kyoto, Japan
| | - Yoshitaka Imura
- Kyoto University Graduate School of Medicine, Department of Rheumatology and Clinical Immunology, Sakyo, Kyoto, Japan
| | - Takao Fujii
- Kyoto University Graduate School of Medicine, Department of the Control for Rheumatic Diseases, Sakyo, Kyoto, Japan
- Kyoto University Graduate School of Medicine, Department of Rheumatology and Clinical Immunology, Sakyo, Kyoto, Japan
| | - Hiromu Ito
- Kyoto University Graduate School of Medicine, Department of Orthopaedic Surgery, Sakyo, Kyoto, Japan
- Kyoto University Graduate School of Medicine, Department of the Control for Rheumatic Diseases, Sakyo, Kyoto, Japan
| | - Tsuneyo Mimori
- Kyoto University Graduate School of Medicine, Department of the Control for Rheumatic Diseases, Sakyo, Kyoto, Japan
- Kyoto University Graduate School of Medicine, Department of Rheumatology and Clinical Immunology, Sakyo, Kyoto, Japan
| | - Shuichi Matsuda
- Kyoto University Graduate School of Medicine, Department of Orthopaedic Surgery, Sakyo, Kyoto, Japan
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145
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Extracellular microRNAs in urologic malignancies: chances and challenges. Int J Mol Sci 2013; 14:14785-99. [PMID: 23863690 PMCID: PMC3742273 DOI: 10.3390/ijms140714785] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Revised: 06/27/2013] [Accepted: 07/01/2013] [Indexed: 02/06/2023] Open
Abstract
Small noncoding RNAs that are 19–23 nucleotides long, known as microRNAs (miRNAs), are involved in almost all biological mechanisms during carcinogenesis. Recent studies show that miRNAs released from live cells are detectable in body fluids and may be taken up by other cells to confer cell-cell communication. These released miRNAs (here referred to as extracellular miRNAs) are often protected by RNA-binding proteins or embedded inside circulating microvesicles. Due to their relative stability, extracellular miRNAs are believed to be promising candidates as biomarkers for diagnosis and prognosis of disease, or even as therapeutic agents for targeted treatment. In this review, we first describe biogenesis and characteristics of these miRNAs. We then summarize recent publications involving extracellular miRNA profiling studies in three representative urologic cancers, including: prostate cancer, bladder cancer, and renal cell carcinoma. We focus on the diagnostic, prognostic, and therapeutic potential of these miRNAs in biological fluids, such as serum, plasma, and urine. Finally, we discuss advantages and challenges of these miRNAs in clinical applications.
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146
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Choi SY, Yun J, Lee OJ, Han HS, Yeo MK, Lee MA, Suh KS. MicroRNA expression profiles in placenta with severe preeclampsia using a PNA-based microarray. Placenta 2013; 34:799-804. [PMID: 23830491 DOI: 10.1016/j.placenta.2013.06.006] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Revised: 05/24/2013] [Accepted: 06/10/2013] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Preeclampsia (PE) is a leading cause of maternal and neonatal mortality and morbidity worldwide. However, the pathophysiology of this disease is not yet fully understood. MiRNA plays an important role in post-transcriptional gene regulation. Recent studies have suggested that dysregulation of miRNAs in placental tissue is involved in the pathogenesis of PE. Therefore, we investigated miRNA profiles in PE placenta to understand the miRNA function in PE pathogenesis. METHODS MiRNA profiling was performed in 20 formalin-fixed and paraffin-embedded samples (10 placentas from severe PE and 10 from a control group). We used a hybridization-based microarray with a PNA-probe comprised of 158 miRNAs. RESULTS Thirteen miRNAs (miR-92b, miR-197, miR-342-3p, miR-296-5p, miR-26b, miR-25, miR-296-3p, miR-26a, miR-198, miR-202, miR-191, miR-95, and miR-204) were significantly overexpressed and two miRNAs (miR-21 and miR-223) were underexpressed in PE compared with the control group. Among 15 differentially expressed miRNAs, miR-26b, miR-296-5p, and miR-223 were found to be consistent with results from previous studies. We identified 893 genes that were predicted by at least three of four computational algorithms. Target genes participated in several signaling pathways, adherens junction, focal adhesion, and regulation of the actin cytoskeleton. CONCLUSIONS Several miRNAs are found to be dysregulated in placentas of PE patients and they seem to be closely associated with the early pathogenesis of PE. Further study is necessary to develop tools for early detection and management.
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Affiliation(s)
- S-Y Choi
- Department of Pathology, Chungbuk National University Hospital, Cheongju, South Korea
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147
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Zhao Z, Moley KH, Gronowski AM. Diagnostic potential for miRNAs as biomarkers for pregnancy-specific diseases. Clin Biochem 2013; 46:953-60. [DOI: 10.1016/j.clinbiochem.2013.01.026] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Revised: 01/12/2013] [Accepted: 01/30/2013] [Indexed: 01/22/2023]
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148
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Etheridge A, Gomes CPC, Pereira RW, Galas D, Wang K. The complexity, function and applications of RNA in circulation. Front Genet 2013; 4:115. [PMID: 23785385 PMCID: PMC3684799 DOI: 10.3389/fgene.2013.00115] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Accepted: 05/31/2013] [Indexed: 01/24/2023] Open
Abstract
Blood carries a wide array of biomolecules, including nutrients, hormones, and molecules that are secreted by cells for specific biological functions. The recent finding of stable RNA of both endogenous and exogenous origin in circulation raises a number of questions and opens a broad, new field: exploring the origins, functions, and applications of these extracellular RNA molecules. These findings raise many important questions, including: what are the mechanisms of export and cellular uptake, what is the nature and source of their stability, what molecules do they interact with in the blood, and what are the possible biological functions of the circulating RNA? This review summarizes some key recent developments in circulating RNA research and discusses some of the open questions in the field.
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Affiliation(s)
- Alton Etheridge
- Pacific Northwest Diabetes Research Institute, Seattle WA, USA
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149
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Comprehensive profiling of circulating microRNA via small RNA sequencing of cDNA libraries reveals biomarker potential and limitations. Proc Natl Acad Sci U S A 2013; 110:4255-60. [PMID: 23440203 DOI: 10.1073/pnas.1214046110] [Citation(s) in RCA: 272] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
We profiled microRNAs (miRNAs) in cell-free serum and plasma samples from human volunteers using deep sequencing of barcoded small RNA cDNA libraries. By introducing calibrator synthetic oligonucleotides during library preparation, we were able to calculate the total as well as specific concentrations of circulating miRNA. Studying trios of samples from newborn babies and their parents we detected placental-specific miRNA in both maternal and newborn circulations and quantitated the relative contribution of placental miRNAs to the circulating pool of miRNAs. Furthermore, sequence variation in the placental miRNA profiles could be traced to the specific placenta of origin. These deep sequencing profiles, which may serve as a model for tumor or disease detection, allow us to define the repertoire of miRNA abundance in the circulation and potential uses as biomarkers.
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150
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Sundarbose K, Kartha RV, Subramanian S. MicroRNAs as Biomarkers in Cancer. Diagnostics (Basel) 2013; 3:84-104. [PMID: 26835669 PMCID: PMC4665585 DOI: 10.3390/diagnostics3010084] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Revised: 12/28/2012] [Accepted: 01/14/2013] [Indexed: 01/07/2023] Open
Abstract
MicroRNAs (miRNAs) are small non-coding RNA molecules, which in recent years have emerged to have enormous potential as biomarkers. Recently, there have been significant developments in understanding miRNA biogenesis, their regulatory mechanisms and role in disease process, and their potential as effective therapies. The identification of miRNAs as biomarkers provides possibilities for development of less or non-invasive and more specific methods for monitoring tumor growth and progression. This review summarizes the recent developments in methods to detect and quantitate miRNAs in body fluids and their applications as biomarkers in cancers. The prospect of miRNAs as potential diagnostic and prognostic biomarkers with clinical applications is significant as more evidence points to their central role in cancer pathobiology.
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Affiliation(s)
- Kamini Sundarbose
- Division of Basic and Translational Research, Department of Surgery, University of Minnesota, Minneapolis, MN 55455, USA.
| | - Reena V Kartha
- Department of Experimental and Clinical Pharmacology, University of Minnesota, Minneapolis, MN 55455, USA.
| | - Subbaya Subramanian
- Division of Basic and Translational Research, Department of Surgery, University of Minnesota, Minneapolis, MN 55455, USA.
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA.
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