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Bardhi E, McDaniels J, Rousselle T, Maluf DG, Mas VR. Nucleic acid biomarkers to assess graft injury after liver transplantation. JHEP REPORTS : INNOVATION IN HEPATOLOGY 2022; 4:100439. [PMID: 35243279 PMCID: PMC8856989 DOI: 10.1016/j.jhepr.2022.100439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 12/13/2021] [Accepted: 12/20/2021] [Indexed: 02/07/2023]
Abstract
Many risk factors and complications impact the success of liver transplantation, such as ischaemia-reperfusion injury, acute rejection, and primary graft dysfunction. Molecular biomarkers have the potential to accurately diagnose, predict, and monitor injury progression or organ failure. There is a critical opportunity for reliable and non-invasive biomarkers to reduce the organ shortage by enabling i) the assessment of donor organ quality, ii) the monitoring of short- and long-term graft function, and iii) the prediction of acute and chronic disease development. To date, no established molecular biomarkers have been used to guide clinical decision-making in transplantation. In this review, we outline the recent advances in cell-free nucleic acid biomarkers for monitoring graft injury in liver transplant recipients. Prior work in this area can be divided into two categories: biomarker discovery and validation studies. Circulating nucleic acids (CNAs) can be found in the extracellular environment pertaining to different biological fluids such as bile, blood, urine, and perfusate. CNAs that are packaged into extracellular vesicles may facilitate intercellular and interorgan communication. Thus, decoding their biological function, cellular origins and molecular composition is imperative for diagnosing causes of graft injury, guiding immunosuppression and improving overall patient survival. Herein, we discuss the most promising molecular biomarkers, their state of development, and the critical aspects of study design in biomarker research for early detection of post-transplant liver injury. Future advances in biomarker studies are expected to personalise post-transplant therapy, leading to improved patient care and outcomes.
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Roest HP, IJzermans JNM, van der Laan LJW. Evaluation of RNA isolation methods for microRNA quantification in a range of clinical biofluids. BMC Biotechnol 2021; 21:48. [PMID: 34362351 PMCID: PMC8344161 DOI: 10.1186/s12896-021-00706-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 07/12/2021] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Extracellular microRNAs (miRNAs), released from cells into biofluids, have emerged as promising biomarkers for diagnostic and prognostic purposes. Several RNA isolation methods are available for the analysis of these cell-free miRNAs by RT-qPCR. Not all methods, however, are equally suitable for different biofluids. Here, we extracted total RNA from four very diverse biofluids: serum, urine, bile, and graft preservation fluid (perfusate). Four different protocols were used: a phenol-chloroform extraction and alcohol precipitation in combination with a precipitation carrier (QP) and three different column-based isolation methods, one with phenol-chloroform extraction (RN) and two without (NG and CU). For this range of clinical biofluid samples, we evaluated the potential of these different RNA isolation methods assessing recovery efficiency and the co-purification of RT-qPCR inhibiting compounds. RESULTS Differences were observed between each of the RNA isolation methods in the recovery of cel-miR-39, a synthetic miRNA spiked in during the workup procedure, and for endogenous miRNAs. Co-purification of heparin, a known RT-qPCR inhibitor, was assessed using heparinase I during cDNA synthesis. RT-qPCR detection of synthetic miRNAs cel-miR-39, spiked in during RNA workup, cel-miR-54, spiked in during cDNA synthesis, and endogenous miRNAs was strongly improved in the presence of heparinase I for some, but not all, isolation methods. Other, co-isolated RT-qPCR inhibitors were not identified, except for biliverdin, which co-isolated from some bile samples with one of the methods. In addition, we observed that serum and urine contain compounds that enhance the binding of heparin to certain solid-phase columns. CONCLUSIONS For reliable measurements of miRNA-based biomarkers in biofluids, optimization of RNA isolation procedures is recommended as methods can differ in miRNA detection and in co-purification of RT-qPCR inhibitory compounds. Heparinase I treatment confirmed that heparin appeared to be the major RT-qPCR inhibiting compound, but also biliverdin, co-isolated from bile, could interfere with detection.
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Affiliation(s)
- Henk P Roest
- Department of Surgery, Laboratory of Experimental Transplantation and Intestinal Surgery (LETIS), Erasmus MC - University Medical Center, P.O. Box 2040, Room Na-1005, 3000, CA, Rotterdam, the Netherlands.
| | - Jan N M IJzermans
- Department of Surgery, Laboratory of Experimental Transplantation and Intestinal Surgery (LETIS), Erasmus MC - University Medical Center, P.O. Box 2040, Room Na-1005, 3000, CA, Rotterdam, the Netherlands
| | - Luc J W van der Laan
- Department of Surgery, Laboratory of Experimental Transplantation and Intestinal Surgery (LETIS), Erasmus MC - University Medical Center, P.O. Box 2040, Room Na-1005, 3000, CA, Rotterdam, the Netherlands
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Kohut TJ, Barandiaran JF, Keating BJ. Genomics and Liver Transplantation: Genomic Biomarkers for the Diagnosis of Acute Cellular Rejection. Liver Transpl 2020; 26:1337-1350. [PMID: 32506790 DOI: 10.1002/lt.25812] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 04/26/2020] [Accepted: 05/18/2020] [Indexed: 02/07/2023]
Abstract
Acute cellular rejection (ACR) is a common complication in liver transplantation recipients (LTRs), especially within the first 12 months, and it is associated with increased morbidity and mortality. Although abnormalities in standard liver biochemistries may raise the clinical suspicion for ACR, it lacks specificity, and invasive liver biopsies, which are associated with numerous risks, are required for definitive diagnoses. Biomarker discovery for minimally invasive tools for diagnosis and prognostication of ACR after liver transplantation (LT) has become a rapidly evolving field of research with a recent shift in focus to omics-based biomarker discovery. Although none are yet ready to replace the standard of care, there are several promising minimally invasive, blood-derived biomarkers that are under intensive research for the diagnosis of ACR in LTRs. These omics-based biomarkers, encompassing DNA, RNA, proteins, and metabolites, hold tremendous potential. Some are likely to become integrated into ACR diagnostic algorithms to assist clinical decision making with a high degree of accuracy that is cost-effective and reduces or even obviates the need for an invasive liver biopsy.
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Affiliation(s)
- Taisa J Kohut
- Penn Transplant Institute, Hospital of the University of Pennsylvania, Philadelphia, PA.,The Children's Hospital of Philadelphia, Philadelphia, PA
| | - Jose F Barandiaran
- Department of General Surgery, Main Line Health System, Lankenau Medical Center, Wynnewood, PA
| | - Brendan J Keating
- Penn Transplant Institute, Hospital of the University of Pennsylvania, Philadelphia, PA
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Brüggenwirth IMA, Porte RJ, Martins PN. Bile Composition as a Diagnostic and Prognostic Tool in Liver Transplantation. Liver Transpl 2020; 26:1177-1187. [PMID: 32246581 DOI: 10.1002/lt.25771] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 03/06/2020] [Accepted: 03/22/2020] [Indexed: 02/07/2023]
Abstract
Bile secretion and composition reflects the functional status of hepatocytes and cholangiocytes. Bile composition can have a role in the assessment of donor grafts before implantation in the recipient. In addition, changes in bile composition after liver transplantation can serve as a diagnostic and prognostic tool to predict posttransplant complications, such as primary nonfunction, acute cellular rejection, or nonanastomotic biliary strictures. With the popularization of liver machine perfusion preservation in the clinical setting, there is a revisited interest in biliary biomarkers to assess graft viability before implantation. This review discusses current literature on biliary biomarkers that could predict or assess liver graft and bile duct viability. Bile composition offers an exciting and novel perspective in the search for reliable hepatocyte and cholangiocyte viability biomarkers.
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Affiliation(s)
- Isabel M A Brüggenwirth
- Division of Organ Transplantation, Department of Surgery, UMass Memorial Medical Center, University of Massachusetts, Worcester, MA
- Department of Surgery, Section of Hepatobiliary Surgery and Liver Transplantation, University Medical Center Groningen, Groningen, the Netherlands
| | - Robert J Porte
- Department of Surgery, Section of Hepatobiliary Surgery and Liver Transplantation, University Medical Center Groningen, Groningen, the Netherlands
| | - Paulo N Martins
- Division of Organ Transplantation, Department of Surgery, UMass Memorial Medical Center, University of Massachusetts, Worcester, MA
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Matton APM, Selten JW, Roest HP, de Jonge J, IJzermans JNM, de Meijer VE, Porte RJ, van der Laan LJW. Cell-free microRNAs as early predictors of graft viability during ex vivo normothermic machine perfusion of human donor livers. Clin Transplant 2020; 34:e13790. [PMID: 31984571 PMCID: PMC7154637 DOI: 10.1111/ctr.13790] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 12/20/2019] [Accepted: 01/19/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Cell-free microRNAs (miRs) have emerged as early and sensitive biomarkers for tissue injury and function. This study aimed to investigate whether the release of hepatocyte-derived microRNAs (HDmiRs) and cholangiocyte-derived miRs (CDmiRs) correlates with hepato-cholangiocellular injury and function during oxygenated, normothermic machine perfusion (NMP) of human liver grafts. METHODS Donor livers (n = 12), declined for transplantation, were subjected to oxygenated NMP (6 hours) after a period of static cold storage (median 544 minutes (IQR 421-674)). Perfusate and bile samples were analyzed by qRT-PCR for HDmiR-122 and CDmiR-222. Spearman correlations were performed between miR levels and currently available indicators and classic markers. RESULTS Both HDmiR-122 and CDmiR-222 levels in perfusate at 30 minutes of NMP strongly correlated with hepatocyte injury (peak perfusate AST) and cholangiocyte injury (peak biliary LDH). In bile, only CDmiR-222 correlated with these injury markers. For hepato-cholangiocellular function, both miRs in perfusate correlated with total bilirubin, while HDmiR-122 (in perfusate) and CDmiR-222 (in bile) correlated with bicarbonate secretion. Both the relative ratio of HDmiR-122/CDmiR-222 and AST in perfusate at 30 minutes significantly correlated with cumulative bile production, but only the relative ratio was predictive of histopathological injury after 6 hours NMP. CONCLUSION Early levels of HDmiR-122 and CDmiR-222, in perfusate and/or bile, are predictive of excretory functions and hepato-cholangiocellular injury after 6 hours NMP. These miRs may represent new biomarkers for graft viability and function during machine perfusion.
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Affiliation(s)
- Alix P. M. Matton
- Section of Hepatobiliary Surgery and Liver TransplantationDepartment of SurgeryUniversity Medical Center GroningenUniversity of GroningenGroningenThe Netherlands
- Surgical Research LaboratoryDepartment of SurgeryUniversity Medical Center GroningenUniversity of GroningenGroningenThe Netherlands
| | - Jasmijn W. Selten
- Department of SurgeryErasmus MC – University Medical Center RotterdamRotterdamThe Netherlands
| | - Henk P. Roest
- Department of SurgeryErasmus MC – University Medical Center RotterdamRotterdamThe Netherlands
| | - Jeroen de Jonge
- Department of SurgeryErasmus MC – University Medical Center RotterdamRotterdamThe Netherlands
| | - Jan N. M. IJzermans
- Department of SurgeryErasmus MC – University Medical Center RotterdamRotterdamThe Netherlands
| | - Vincent E. de Meijer
- Section of Hepatobiliary Surgery and Liver TransplantationDepartment of SurgeryUniversity Medical Center GroningenUniversity of GroningenGroningenThe Netherlands
| | - Robert J. Porte
- Section of Hepatobiliary Surgery and Liver TransplantationDepartment of SurgeryUniversity Medical Center GroningenUniversity of GroningenGroningenThe Netherlands
| | - Luc J. W. van der Laan
- Department of SurgeryErasmus MC – University Medical Center RotterdamRotterdamThe Netherlands
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Vatnikov Y, Vilkovysky I, Kulikov E, Popova I, Khairova N, Gazin A, Zharov A, Lukina D. Size of canine hepatocellular carcinoma as an adverse prognostic factor for surgery. J Adv Vet Anim Res 2020; 7:127-132. [PMID: 32219118 PMCID: PMC7096117 DOI: 10.5455/javar.2020.g401] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 10/10/2019] [Accepted: 10/12/2019] [Indexed: 01/04/2023] Open
Abstract
Objective Liver neoplasms are problematic among small domestic animals. The etiological cause of hepatocellular carcinomas in domestic animals is still unknown although it is believed that chronic infections and toxic substances can affect the development of this type of tumor. This study aimed to analyze the clinical and morphological characteristics of canine hepatocellular carcinoma. Materials and methods In total, 6,958 cancer operations were performed in the clinic. Liver tumors were detected in 123 dogs in vivo and 375 dogs postmortem. All animals with suspected liver neoplasm were assessed, including history, clinical examination, complete blood count, biochemical blood tests, radiographic examination, and ultrasound with a biopsy for performing cytological and histological analyses. Results Hepatocellular carcinomas have nonspecific clinical manifestations, also a characteristic aspect of other tumors of the hepatobiliary system. The hematological changes have an impact on the prognosis, and biochemical abnormalities reflect the changes in liver activity. The cytological diagnosis of hepatocellular tumors is difficult because of hepatocyte atypia in highly differentiated carcinomas. Finally, a histological examination was performed in all the dogs diagnosed with hepatocellular carcinoma. Conclusion Hematological changes in dogs with hepatocellular carcinoma affect their prognosis. Biochemical abnormalities of this pathology reflect the changes in liver activity, not indicating a specific pathology. However, an increase in the activity of aspartate aminotransferase, alanine aminotransferase, and alkaline phosphatase is an unfavorable prognostic sign. In this study, five of seven dogs with a tumor size of more than 5.0 cm had a life expectancy of 30, 51, and 91 days, suggesting that the size of the tumor is an adverse prognostic factor.
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Affiliation(s)
- Yury Vatnikov
- Department of Veterinary Medicine, Agrarian and Technological Institute, Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya street, 6, Moscow 117198, Russia
| | - Ilya Vilkovysky
- Department of Veterinary Medicine, Agrarian and Technological Institute, Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya street, 6, Moscow 117198, Russia
| | - Evgeny Kulikov
- Department of Veterinary Medicine, Agrarian and Technological Institute, Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya street, 6, Moscow 117198, Russia
| | - Irina Popova
- Department of Veterinary Medicine, Agrarian and Technological Institute, Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya street, 6, Moscow 117198, Russia
| | - Nadia Khairova
- Department of Veterinary Medicine, Agrarian and Technological Institute, Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya street, 6, Moscow 117198, Russia
| | - Aleksey Gazin
- Department of Veterinary Medicine, Agrarian and Technological Institute, Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya street, 6, Moscow 117198, Russia
| | - Andrey Zharov
- Department of Veterinary Medicine, Agrarian and Technological Institute, Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya street, 6, Moscow 117198, Russia
| | - Darya Lukina
- Department of Veterinary Medicine, Agrarian and Technological Institute, Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya street, 6, Moscow 117198, Russia
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Cell-free MicroRNA miR-505-3p in Graft Preservation Fluid Is an Independent Predictor of Delayed Graft Function After Kidney Transplantation. Transplantation 2019; 103:329-335. [PMID: 30444806 DOI: 10.1097/tp.0000000000002527] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Delayed graft function (DGF), a common complication after transplantation of deceased donor kidneys, affects both short- and long-term outcomes. Currently available biomarkers during graft preservation lack sensitivity in predicting risk for DGF. The aim of this study is to identify cell-free micro ribonucleic acid (miRNA) biomarkers in graft preservation fluid predictive of DGF after kidney transplantation. METHODS Vascular bed preservation fluid was collected from 48 kidney grafts from donation after circulatory death (DCD) or donation after brain death (DBD) donors. miRNA profiles were determined by polymerase chain reaction (PCR) array (n = 8) and validated by reverse transcription and quantitative PCR (n = 40). Graft function posttransplantation was defined as immediate good function (IF) or DGF. RESULTS A total of 223 miRNAs fulfilled the preset parameters (Ct < 40 in 3 or more samples) and were included in the analysis. Thirty-two miRNAs were significantly different between DGF and IF kidney grafts (P < 0.05) but, after correction for multiple testing, only miR-505-3p remained significant. The significant association of high miR-505-3p levels with DGF was confirmed in an independent validation cohort using conventional reverse transcription and quantitative PCR detection. Multivariate analyses showed miR-505-3p as an independent predictor for DGF (odds ratio, 1.12; P = 0.028). If stratified for donor type, miR-505-3p levels remained significantly different between IF and DGF in DCD grafts (P < 0.01), but not in DBD grafts. Receiver operating characteristic curve analysis showed a high sensitivity and specificity (area under the curve, 0.833). CONCLUSIONS In DCD grafts, high levels of miR-505-3p in preservation fluid are associated with increased risk of DGF after kidney transplantation. Further study is required to confirm the utility of cell-free miR-505-3p as prognostic biomarker for DGF.
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Kumar S, Mohapatra N, Borle DP, Choudhury A, Sarin S, Gupta E. Non invasive diagnosis of acute cellular rejection after liver transplantation - Current opinion. Transpl Immunol 2018; 47:1-9. [PMID: 29452168 DOI: 10.1016/j.trim.2018.02.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 01/31/2018] [Accepted: 02/05/2018] [Indexed: 02/06/2023]
Affiliation(s)
- Senthil Kumar
- Dept of HPB Surgery and Liver Transplantation, Institute of Liver and Biliary Sciences, New Delhi 70, India.
| | - Nihar Mohapatra
- Dept of HPB Surgery and Liver Transplantation, Institute of Liver and Biliary Sciences, New Delhi 70, India
| | | | - Ashok Choudhury
- Dept of Transplantation Hepatology, Institute of Liver and Biliary Sciences, New Delhi 70, India
| | - Shashwat Sarin
- Dept of HPB Surgery and Liver Transplantation, Institute of Liver and Biliary Sciences, New Delhi 70, India
| | - Ekta Gupta
- Dept of Virology, Institute of Liver and Biliary Sciences, New Delhi 70, India
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Pant K, Venugopal SK. Circulating microRNAs: Possible role as non-invasive diagnostic biomarkers in liver disease. Clin Res Hepatol Gastroenterol 2017; 41:370-377. [PMID: 27956256 DOI: 10.1016/j.clinre.2016.11.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 09/30/2016] [Accepted: 11/07/2016] [Indexed: 02/08/2023]
Abstract
Liver is the central organ for metabolism and the hepatocytes metabolize several drugs, hepatotoxins, alcohol, etc. Continuous exposure of the hepatocytes to these toxins result in various chronic diseases, such as alcoholic liver disease, non-alcoholic fatty liver disease, viral hepatitis and hepatocellular carcinoma. Although several diagnostic methods, such as serum markers, liver biopsy or imaging studies are currently available, most of these are either invasive or detect the disease at advanced stages. Hence, there is a need for new molecular markers that can be used for early detection of the disease. MicroRNAs (miRNAs) are naturally occurring, 20-22 nucleotide long, non-coding RNA molecules that regulate the gene expression at post-transcriptional levels, thereby modulating various biological functions. Their expression is deregulated under pathological conditions, and recent studies showed that they are secreted and can be detected in various body fluids. Since the cellular changes occur at earlier stages of the disease, detecting miRNAs in the body fluids could make them as potential novel biomarkers. Albeit, the difficulties in standardization procedures, cost and availability should be addressed before using them in the clinical arena. This review highlights the possible role of secreted miRNAs to use as early non-invasive diagnostic markers for liver disease.
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Affiliation(s)
- Kishor Pant
- Faculty of Life Science and Biotechnology, South Asian University, Akbar Bhawan, Chanakyapuri, 110021 New Delhi, India
| | - Senthil K Venugopal
- Faculty of Life Science and Biotechnology, South Asian University, Akbar Bhawan, Chanakyapuri, 110021 New Delhi, India.
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Selten JW, Verhoeven CJ, Heedfeld V, Roest HP, de Jonge J, Pirenne J, van Pelt J, Ijzermans JNM, Monbaliu D, van der Laan LJW. The release of microRNA-122 during liver preservation is associated with early allograft dysfunction and graft survival after transplantation. Liver Transpl 2017; 23:946-956. [PMID: 28388830 DOI: 10.1002/lt.24766] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 02/27/2017] [Accepted: 03/07/2017] [Indexed: 12/24/2022]
Abstract
Early allograft dysfunction (EAD) after liver transplantation (LT) is associated with inferior graft survival. EAD is more prevalent in grafts from donation after circulatory death (DCD). However, accurate prediction of liver function remains difficult because of the lack of specific biomarkers. Recent experimental and clinical studies highlight the potential of hepatocyte-derived microRNAs (miRNAs) as sensitive, stable, and specific biomarkers of liver injury. The aim of this study was to determine whether miRNAs in graft preservation fluid are predictive for EAD after clinical LT and in an experimental DCD model. Graft preservation solutions of 83 liver grafts at the end of cold ischemia were analyzed for miRNAs by reverse transcription polymerase chain reaction. Of these grafts, 42% developed EAD after transplantation. Results were verified in pig livers (n = 36) exposed to different lengths of warm ischemia time (WIT). The absolute miR-122 levels and miR-122/miR-222 ratios in preservation fluids were significantly higher in DCD grafts (P = 0.001) and grafts developing EAD (P = 0.004). In concordance, the miR-122/miR-222 ratios in perfusion fluid correlate with serum transaminase levels within the first 24 hours after transplantation. Longterm graft survival was significantly diminished in grafts with high miR-122/miR-222 ratios (P = 0.02). In the porcine DCD model, increased WIT lead to higher absolute miR-122 levels and relative miR-122/miR-222 ratios in graft perfusion fluid (P = 0.01 and P = 0.02, respectively). High miR-122/miR-222 ratios in pig livers were also associated with high aspartate aminotransferase levels after warm oxygenated reperfusion. In conclusion, both absolute and relative miR-122 levels in graft preservation solution are associated with DCD, EAD, and early graft loss after LT. As shown in a porcine DCD model, miRNA release correlated with the length of WITs. Liver Transplantation 23 946-956 2017 AASLD.
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Affiliation(s)
- Jasmijn W Selten
- Department of Surgery, Erasmus Medical Center-University Medical Center, Rotterdam, the Netherlands
| | - Cornelia J Verhoeven
- Department of Surgery, Erasmus Medical Center-University Medical Center, Rotterdam, the Netherlands
| | - Veerle Heedfeld
- Abdominal Transplant Surgery, Department of Surgery, Catholic University of Leuven, Leuven, Belgium
| | - Henk P Roest
- Department of Surgery, Erasmus Medical Center-University Medical Center, Rotterdam, the Netherlands
| | - Jeroen de Jonge
- Department of Surgery, Erasmus Medical Center-University Medical Center, Rotterdam, the Netherlands
| | - Jacques Pirenne
- Abdominal Transplant Surgery, Department of Surgery, Catholic University of Leuven, Leuven, Belgium
| | - Jos van Pelt
- Laboratory of Hepatology, Department of Clinical and Experimental Medicine, Liver Research Facility, Catholic University of Leuven, Leuven, Belgium
| | - Jan N M Ijzermans
- Department of Surgery, Erasmus Medical Center-University Medical Center, Rotterdam, the Netherlands
| | - Diethard Monbaliu
- Abdominal Transplant Surgery, Department of Surgery, Catholic University of Leuven, Leuven, Belgium
| | - Luc J W van der Laan
- Department of Surgery, Erasmus Medical Center-University Medical Center, Rotterdam, the Netherlands
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Dirksen K, Verzijl T, Grinwis GC, Favier RP, Penning LC, Burgener IA, van der Laan LJ, Fieten H, Spee B. Use of Serum MicroRNAs as Biomarker for Hepatobiliary Diseases in Dogs. J Vet Intern Med 2016; 30:1816-1823. [PMID: 27859748 PMCID: PMC5115189 DOI: 10.1111/jvim.14602] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2016] [Revised: 08/08/2016] [Accepted: 09/21/2016] [Indexed: 12/11/2022] Open
Abstract
Background Current biochemical indicators cannot discriminate between parenchymal, biliary, vascular, and neoplastic hepatobiliary diseases. MicroRNAs are promising new biomarkers for hepatobiliary disease in humans and dogs. Objective To measure serum concentrations of an established group of microRNAs in dogs and to investigate their concentrations in various types of hepatobiliary diseases. Animals Forty‐six client‐owned dogs with an established diagnosis of hepatobiliary disease and stored serum samples and eleven client‐owned healthy control Labrador Retrievers. Methods Retrospective study. Medical records of dogs with parenchymal, biliary, vascular, or neoplastic hepatobiliary diseases and control dogs were reviewed. Concentrations of miR‐21, miR‐122, miR‐126, miR‐148a, miR‐200c, and miR‐222 were quantified in serum by real‐time polymerase chain reaction. Results No different microRNA concentrations were found in the adenoma and congenital portosystemic shunt groups. In all other diseases, miR‐122 concentrations were elevated with the highest concentration in the mucocele group (267‐fold, CI: 40–1,768, P < .001). In dogs with biliary diseases, miR‐21 and miR‐222 were only increased in dogs with mucoceles (26‐fold, CI: 5–141, P = .005 and 13‐fold, CI: 2–70, P = .025, respectively). Uniquely increased microRNAs were found in the hepatocellular carcinoma group (miR‐200c, 35‐fold increase, CI: 3–382, P = .035) and the chronic hepatitis group (miR‐126, 22‐fold increase, CI: 5–91, P = .002). Conclusions and Clinical Importance A microRNA panel consisting of miR‐21, miR‐122, miR‐126, miR‐200c, and miR‐222 can distinguish between parenchymal, biliary, and neoplastic hepatobiliary diseases. Serum microRNA profiling is a promising new tool that might be a valuable addition to conventional diagnostics to help diagnose various hepatobiliary diseases in dogs.
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Affiliation(s)
- K Dirksen
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - T Verzijl
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - G C Grinwis
- Department of Pathobiology, Utrecht University, Utrecht, The Netherlands
| | - R P Favier
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - L C Penning
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - I A Burgener
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - L J van der Laan
- Department of Surgery, Erasmus MC-University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - H Fieten
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - B Spee
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
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