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Lim JH, Chung BH, Lee SH, Lee JS, Kim YH, Han MH, Jung HY, Choi JY, Cho JH, Park SH, Kim YL, Kim CD. Efficacy of Integrated Risk Score Using Omics-Based Biomarkers for the Prediction of Acute Rejection in Kidney Transplantation: A Randomized Prospective Pilot Study. Int J Mol Sci 2024; 25:5139. [PMID: 38791177 PMCID: PMC11121528 DOI: 10.3390/ijms25105139] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 05/04/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024] Open
Abstract
Acute rejection (AR) is critical for long-term graft survival in kidney transplant recipients (KTRs). This study aimed to evaluate the efficacy of the integrated risk score of omics-based biomarkers in predicting AR in KTRs. This prospective, randomized, controlled, multicenter, pilot study enrolled 40 patients who recently underwent high-immunologic-risk kidney transplantation (KT). Five omics biomarkers were measured, namely, blood mRNA (three-gene signature), urinary exosomal miRNA (three-gene signature), urinary mRNA (six-gene signature), and two urinary exosomal proteins (hemopexin and tetraspanin-1) at 2 weeks and every 4 weeks after KT for 1 year. An integrated risk score was generated by summing each biomarker up. The biomarker group was informed about the integrated risk scores and used to adjust immunosuppression, but not the control group. The outcomes were graft function and frequency of graft biopsy. Sixteen patients in the biomarker group and nineteen in the control group completed the study. The mean estimated glomerular filtration rate after KT did not differ between the groups. Graft biopsy was performed in two patients (12.5%) and nine (47.4%) in the biomarker and control groups, respectively, with the proportion being significantly lower in the biomarker group (p = 0.027). One patient (6.3%) in the biomarker group and two (10.5%) in the control group were diagnosed with AR, and the AR incidence did not differ between the groups. The tacrolimus trough level was significantly lower in the biomarker group than in the control group at 1 year after KT (p = 0.006). Integrated omics biomarker monitoring may help prevent unnecessary or high-complication-risk biopsy and enables tailored immunosuppression by predicting the risk of AR in KTRs.
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Affiliation(s)
- Jeong-Hoon Lim
- Division of Nephrology, Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Republic of Korea; (J.-H.L.); (H.-Y.J.); (J.-Y.C.); (J.-H.C.); (S.-H.P.); (Y.-L.K.)
| | - Byung Ha Chung
- Division of Nephrology, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea;
| | - Sang-Ho Lee
- Division of Nephrology, Department of Internal Medicine, College of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea;
| | - Jong Soo Lee
- Division of Nephrology, Department of Internal Medicine, University of Ulsan College of Medicine, Ulsan 44033, Republic of Korea
| | - Yeong Hoon Kim
- Division of Nephrology, Department of Internal Medicine, College of Medicine, Inje University Busan Paik Hospital, Busan 47392, Republic of Korea;
| | - Man-Hoon Han
- Department of Pathology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Republic of Korea;
| | - Hee-Yeon Jung
- Division of Nephrology, Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Republic of Korea; (J.-H.L.); (H.-Y.J.); (J.-Y.C.); (J.-H.C.); (S.-H.P.); (Y.-L.K.)
| | - Ji-Young Choi
- Division of Nephrology, Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Republic of Korea; (J.-H.L.); (H.-Y.J.); (J.-Y.C.); (J.-H.C.); (S.-H.P.); (Y.-L.K.)
| | - Jang-Hee Cho
- Division of Nephrology, Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Republic of Korea; (J.-H.L.); (H.-Y.J.); (J.-Y.C.); (J.-H.C.); (S.-H.P.); (Y.-L.K.)
| | - Sun-Hee Park
- Division of Nephrology, Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Republic of Korea; (J.-H.L.); (H.-Y.J.); (J.-Y.C.); (J.-H.C.); (S.-H.P.); (Y.-L.K.)
| | - Yong-Lim Kim
- Division of Nephrology, Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Republic of Korea; (J.-H.L.); (H.-Y.J.); (J.-Y.C.); (J.-H.C.); (S.-H.P.); (Y.-L.K.)
| | - Chan-Duck Kim
- Division of Nephrology, Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu 41944, Republic of Korea; (J.-H.L.); (H.-Y.J.); (J.-Y.C.); (J.-H.C.); (S.-H.P.); (Y.-L.K.)
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Filippone EJ, Gulati R, Farber JL. Noninvasive Assessment of the Alloimmune Response in Kidney Transplantation. Adv Chronic Kidney Dis 2021; 28:548-560. [PMID: 35367023 DOI: 10.1053/j.ackd.2021.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/28/2021] [Accepted: 08/26/2021] [Indexed: 11/11/2022]
Abstract
Transplantation remains the optimal mode of kidney replacement therapy, but unfortunately long-term graft survival after 1 year remains suboptimal. The main mechanism of chronic allograft injury is alloimmune, and current clinical monitoring of kidney transplants includes measuring serum creatinine, proteinuria, and immunosuppressive drug levels. The most important biomarker routinely monitored is human leukocyte antigen (HLA) donor-specific antibodies (DSAs) with the frequency based on underlying immunologic risk. HLA-DSA should be measured if there is graft dysfunction, immunosuppression minimization, or nonadherence. Antibody strength is semiquantitatively estimated as mean fluorescence intensity, with titration studies for equivocal cases and for following response to treatment. Determination of in vitro C1q or C3d positivity or HLA-DSA IgG subclass analysis remains of uncertain significance, but we do not recommend these for routine use. Current evidence does not support routine monitoring of non-HLA antibodies except anti-angiotensin II type 1 receptor antibodies when the phenotype is appropriate. The monitoring of both donor-derived cell-free DNA in blood or gene expression profiling of serum and/or urine may detect subclinical rejection, although mainly as a supplement and not as a replacement for biopsy. The optimal frequency and cost-effectiveness of using these noninvasive assays remain to be determined. We review the available literature and make recommendations.
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Seo JW, Lee YH, Tae DH, Park SH, Moon JY, Jeong KH, Kim CD, Chung BH, Park JB, Kim YH, Seok J, Joo SH, Lee SH, Lee JS, Lee SH. Non-Invasive Diagnosis for Acute Rejection Using Urinary mRNA Signature Reflecting Allograft Status in Kidney Transplantation. Front Immunol 2021; 12:656632. [PMID: 34177898 PMCID: PMC8222723 DOI: 10.3389/fimmu.2021.656632] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 04/30/2021] [Indexed: 11/28/2022] Open
Abstract
Urine has been regarded as a good resource based on the assumption that urine can directly reflect the state of the allograft or ongoing injury in kidney transplantation. Previous studies, suggesting the usefulness of urinary mRNA as a biomarker of acute rejection, imply that urinary mRNA mirrors the transcriptional activity of the kidneys. We selected 14 data-driven candidate genes through a meta-analysis and measured the candidate genes using quantitative PCR without pre-amplification in the cross-sectional specimens from Korean kidney transplant patients. Expression of 9/14 genes (CXCL9, CD3ϵ, IP-10, LCK, C1QB, PSMB9, Tim-3, Foxp3, and FAM26F) was significantly different between acute rejection and stable graft function with normal pathology and long-term graft survival in 103 training samples. CXCL9 was also distinctly expressed in allografts with acute rejection in in situ hybridization analysis. This result, consistent with the qPCR result, implies that urinary mRNA could reflect the magnitude of allograft injury. We developed an AR prediction model with the urinary mRNAs by a binary logistic regression and the AUC of the model was 0.89 in the training set. The model was validated in 391 independent samples, and the AUC value yielded 0.84 with a fixed manner. In addition, the decision curve analysis indicated a range of reasonable threshold probabilities for biopsy. Therefore, we suggest the urine mRNA signature could be used as a non-invasive monitoring tool of acute rejection for clinical application and could help determine whether to perform a biopsy in a recipient with increased creatinine.
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Affiliation(s)
- Jung-Woo Seo
- Department of Core Research Laboratory, Medical Science Institute, Kyung Hee University Hospital at Gangdong, Seoul, South Korea.,Division of Nephrology, Department of Internal Medicine, Kyung Hee University Hospital at Gangdong, Seoul, South Korea
| | - Yu Ho Lee
- Division of Nephrology, Department of Internal Medicine, Kyung Hee University Hospital at Gangdong, Seoul, South Korea
| | - Dong Hyun Tae
- School of Electrical Engineering, Korea University, Seoul, South Korea
| | - Seon Hwa Park
- Division of Nephrology, Department of Internal Medicine, Kyung Hee University Hospital at Gangdong, Seoul, South Korea
| | - Ju-Young Moon
- Division of Nephrology, Department of Internal Medicine, Kyung Hee University Hospital at Gangdong, Seoul, South Korea.,Division of Nephrology, Department of Internal Medicine, College of Medicine, Kyung Hee University, Seoul, South Korea
| | - Kyung Hwan Jeong
- Division of Nephrology, Department of Internal Medicine, College of Medicine, Kyung Hee University, Seoul, South Korea
| | - Chan-Duck Kim
- Division of Nephrology, Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, South Korea
| | - Byung Ha Chung
- Division of Nephrology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Jae Berm Park
- Department of Surgery, Sungkyunkwan University Samsung Hospital, Seoul, South Korea
| | - Yeong Hoon Kim
- Division of Nephrology, Department of Internal Medicine, College of Medicine, Inje University Busan Paik Hospital, Busan, South Korea
| | - Junhee Seok
- School of Electrical Engineering, Korea University, Seoul, South Korea
| | - Sun Hyung Joo
- Department of Surgery, Kyung Hee University Hospital at Gangdong, Seoul, South Korea
| | - Seung Hwan Lee
- Department of Surgery, Kyung Hee University Hospital at Gangdong, Seoul, South Korea
| | - Jong Soo Lee
- Division of Nephrology, Department of Internal Medicine, University of Ulsan College of Medicine, Ulsan, South Korea
| | - Sang-Ho Lee
- Division of Nephrology, Department of Internal Medicine, Kyung Hee University Hospital at Gangdong, Seoul, South Korea.,Division of Nephrology, Department of Internal Medicine, College of Medicine, Kyung Hee University, Seoul, South Korea
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Chopra N, Wang R, Maloney B, Nho K, Beck JS, Pourshafie N, Niculescu A, Saykin AJ, Rinaldi C, Counts SE, Lahiri DK. MicroRNA-298 reduces levels of human amyloid-β precursor protein (APP), β-site APP-converting enzyme 1 (BACE1) and specific tau protein moieties. Mol Psychiatry 2021; 26:5636-5657. [PMID: 31942037 PMCID: PMC8758483 DOI: 10.1038/s41380-019-0610-2] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 11/09/2019] [Accepted: 11/13/2019] [Indexed: 12/16/2022]
Abstract
Alzheimer's disease (AD) is the most common age-related form of dementia, associated with deposition of intracellular neuronal tangles consisting primarily of hyperphosphorylated microtubule-associated protein tau (p-tau) and extracellular plaques primarily comprising amyloid- β (Aβ) peptide. The p-tau tangle unit is a posttranslational modification of normal tau protein. Aβ is a neurotoxic peptide excised from the amyloid-β precursor protein (APP) by β-site APP-cleaving enzyme 1 (BACE1) and the γ-secretase complex. MicroRNAs (miRNAs) are short, single-stranded RNAs that modulate protein expression as part of the RNA-induced silencing complex (RISC). We identified miR-298 as a repressor of APP, BACE1, and the two primary forms of Aβ (Aβ40 and Aβ42) in a primary human cell culture model. Further, we discovered a novel effect of miR-298 on posttranslational levels of two specific tau moieties. Notably, miR-298 significantly reduced levels of ~55 and 50 kDa forms of the tau protein without significant alterations of total tau or other forms. In vivo overexpression of human miR-298 resulted in nonsignificant reduction of APP, BACE1, and tau in mice. Moreover, we identified two miR-298 SNPs associated with higher cerebrospinal fluid (CSF) p-tau and lower CSF Aβ42 levels in a cohort of human AD patients. Finally, levels of miR-298 varied in postmortem human temporal lobe between AD patients and age-matched non-AD controls. Our results suggest that miR-298 may be a suitable target for AD therapy.
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Affiliation(s)
- Nipun Chopra
- grid.257413.60000 0001 2287 3919Laboratory of Molecular Neurogenetics, Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN USA
| | - Ruizhi Wang
- grid.257413.60000 0001 2287 3919Laboratory of Molecular Neurogenetics, Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN USA
| | - Bryan Maloney
- grid.257413.60000 0001 2287 3919Laboratory of Molecular Neurogenetics, Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN USA ,grid.257413.60000 0001 2287 3919Indiana Alzheimers Disease Center, Indiana University School of Medicine, Indianapolis, IN USA
| | - Kwangsik Nho
- grid.257413.60000 0001 2287 3919Indiana Alzheimers Disease Center, Indiana University School of Medicine, Indianapolis, IN USA ,grid.257413.60000 0001 2287 3919Departments of Radiology & Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN USA
| | - John S. Beck
- grid.17088.360000 0001 2150 1785Departments of Translational Neuroscience and Family Medicine, Michigan State University, Grand Rapids, MI USA
| | - Naemeh Pourshafie
- grid.94365.3d0000 0001 2297 5165Neurogenetics Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD USA
| | - Alexander Niculescu
- grid.257413.60000 0001 2287 3919Laboratory of Molecular Neurogenetics, Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN USA
| | - Andrew J. Saykin
- grid.257413.60000 0001 2287 3919Indiana Alzheimers Disease Center, Indiana University School of Medicine, Indianapolis, IN USA ,grid.257413.60000 0001 2287 3919Departments of Radiology & Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN USA ,grid.257413.60000 0001 2287 3919Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, IN USA
| | - Carlo Rinaldi
- grid.4991.50000 0004 1936 8948Department of Paediatrics, University of Oxford, South Parks Road, Oxford, OX1 3QX UK
| | - Scott E. Counts
- grid.17088.360000 0001 2150 1785Departments of Translational Neuroscience and Family Medicine, Michigan State University, Grand Rapids, MI USA
| | - Debomoy K. Lahiri
- grid.257413.60000 0001 2287 3919Laboratory of Molecular Neurogenetics, Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN USA ,grid.257413.60000 0001 2287 3919Indiana Alzheimers Disease Center, Indiana University School of Medicine, Indianapolis, IN USA ,grid.257413.60000 0001 2287 3919Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, IN USA
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Lee YH, Seo JW, Kim M, Tae D, Seok J, Kim YG, Lee SH, Kim JS, Hwang HS, Jeong KH, Moon JY. Urinary mRNA Signatures as Predictors of Renal Function Decline in Patients With Biopsy-Proven Diabetic Kidney Disease. Front Endocrinol (Lausanne) 2021; 12:774436. [PMID: 34858345 PMCID: PMC8630698 DOI: 10.3389/fendo.2021.774436] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 10/12/2021] [Indexed: 01/12/2023] Open
Abstract
The clinical manifestations of diabetic kidney disease (DKD) are more heterogeneous than those previously reported, and these observations mandate the need for the recruitment of patients with biopsy-proven DKD in biomarker research. In this study, using the public gene expression omnibus (GEO) repository, we aimed to identify urinary mRNA biomarkers that can predict histological severity and disease progression in patients with DKD in whom the diagnosis and histologic grade has been confirmed by kidney biopsy. We identified 30 DKD-specific mRNA candidates based on the analysis of the GEO datasets. Among these, there were significant alterations in the urinary levels of 17 mRNAs in patients with DKD, compared with healthy controls. Four urinary mRNAs-LYZ, C3, FKBP5, and G6PC-reflected tubulointerstitial inflammation and fibrosis in kidney biopsy and could predict rapid progression to end-stage kidney disease independently of the baseline eGFR (tertile 1 vs. tertile 3; adjusted hazard ratio of 9.68 and 95% confidence interval of 2.85-32.87, p < 0.001). In conclusion, we demonstrated that urinary mRNA signatures have a potential to indicate the pathologic status and predict adverse renal outcomes in patients with DKD.
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Affiliation(s)
- Yu Ho Lee
- Division of Nephrology, Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
| | - Jung-Woo Seo
- Division of Nephrology, Department of Internal Medicine, Kyung Hee University School of Medicine, Seoul, South Korea
| | - Miji Kim
- Division of Nephrology, Department of Internal Medicine, Kyung Hee University School of Medicine, Seoul, South Korea
| | - Donghyun Tae
- School of Electrical Engineering, Korea University, Seoul, South Korea
| | - Junhee Seok
- School of Electrical Engineering, Korea University, Seoul, South Korea
| | - Yang Gyun Kim
- Division of Nephrology, Department of Internal Medicine, Kyung Hee University School of Medicine, Seoul, South Korea
| | - Sang-Ho Lee
- Division of Nephrology, Department of Internal Medicine, Kyung Hee University School of Medicine, Seoul, South Korea
| | - Jin Sug Kim
- Division of Nephrology, Department of Internal Medicine, Kyung Hee University School of Medicine, Seoul, South Korea
| | - Hyeon Seok Hwang
- Division of Nephrology, Department of Internal Medicine, Kyung Hee University School of Medicine, Seoul, South Korea
| | - Kyung-Hwan Jeong
- Division of Nephrology, Department of Internal Medicine, Kyung Hee University School of Medicine, Seoul, South Korea
| | - Ju-Young Moon
- Division of Nephrology, Department of Internal Medicine, Kyung Hee University School of Medicine, Seoul, South Korea
- *Correspondence: Ju-Young Moon,
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Urinary Biomarkers for Diagnosis and Prediction of Acute Kidney Allograft Rejection: A Systematic Review. Int J Mol Sci 2020; 21:ijms21186889. [PMID: 32961825 PMCID: PMC7555436 DOI: 10.3390/ijms21186889] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 09/16/2020] [Accepted: 09/18/2020] [Indexed: 01/10/2023] Open
Abstract
Noninvasive tools for diagnosis or prediction of acute kidney allograft rejection have been extensively investigated in recent years. Biochemical and molecular analyses of blood and urine provide a liquid biopsy that could offer new possibilities for rejection prevention, monitoring, and therefore, treatment. Nevertheless, these tools are not yet available for routine use in clinical practice. In this systematic review, MEDLINE was searched for articles assessing urinary biomarkers for diagnosis or prediction of kidney allograft acute rejection published in the last five years (from 1 January 2015 to 31 May 2020). This review follows the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guidelines. Articles providing targeted or unbiased urine sample analysis for the diagnosis or prediction of both acute cellular and antibody-mediated kidney allograft rejection were included, analyzed, and graded for methodological quality with a particular focus on study design and diagnostic test accuracy measures. Urinary C-X-C motif chemokine ligands were the most promising and frequently studied biomarkers. The combination of precise diagnostic reference in training sets with accurate validation in real-life cohorts provided the most relevant results and exciting groundwork for future studies.
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Cha B, Kim J, Bello A, Lee G, Kim D, Kim BJ, Arai Y, Choi B, Park H, Lee S. Efficient Isolation and Enrichment of Mesenchymal Stem Cells from Human Embryonic Stem Cells by Utilizing the Interaction between Integrin α5 β1 and Fibronectin. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2001365. [PMID: 32995130 PMCID: PMC7507081 DOI: 10.1002/advs.202001365] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/02/2020] [Indexed: 05/09/2023]
Abstract
Human pluripotent stem cells (hPSCs) are a potent source of clinically relevant mesenchymal stem cells (MSCs) that confer functional and structural benefits in cell therapy and tissue regeneration. Obtaining sufficient numbers of MSCs in a short period of time and enhancing the differentiation potential of MSCs can be offered the potential to improve the regenerative activity of MSCs therapy. In addition, the underlying processes in the isolation and derivation of MSCs from hPSCs are still poorly understood and controlled. To overcome these clinical needs, an efficient and simplified technique on the isolation of MSCs from spontaneously differentiated human embryonic stem cells (hESCs) via integrin α5β1 (fibronectin (FN) receptor)-to-FN interactions (hESC-FN-MSCs) is successfully developed. It is demonstrated that hESC-FN-MSCs exhibit a typical MSC surface phenotype, cellular morphology, with the whole transcriptome similar to conventional adult MSCs; but show higher proliferative capacity, more efficient trilineage differentiation, enhanced cytokine secretion, and attenuated cellular senescence. In addition, the therapeutic potential and regenerative capacity of the isolated hESC-FN-MSCs are confirmed by in vitro and in vivo multilineage differentiation. This novel method will be useful in the generation of abundant amounts of clinically relevant MSCs for stem cell therapeutics and regenerative medicine.
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Affiliation(s)
- Byung‐Hyun Cha
- Division of Cardio‐Thoracic SurgeryDepartment of SurgeryCollege of MedicineUniversity of ArizonaTucsonAZ85724USA
| | - Jin‐Su Kim
- CellenGene R&D CenterOpen Innovation BuildingSeoul02455Republic of Korea
- Department of Biomedical ScienceCHA UniversityCHA BiocomplexSeongnam‐siGyeonggi‐do13488Republic of Korea
| | - Alvin Bello
- Department of Integrative EngineeringChung‐Ang UniversitySeoul06974Republic of Korea
| | - Geun‐Hui Lee
- Department of Biomedical ScienceCHA UniversityCHA BiocomplexSeongnam‐siGyeonggi‐do13488Republic of Korea
| | - Do‐Hyun Kim
- Department of Medical BiotechnologyDongguk University32 Dongguk‐ro, Ilsandong‐guGoyangGyeonggi10326Republic of Korea
| | - Byoung Ju Kim
- Department of Medical BiotechnologyDongguk University32 Dongguk‐ro, Ilsandong‐guGoyangGyeonggi10326Republic of Korea
| | - Yoshie Arai
- Department of Medical BiotechnologyDongguk University32 Dongguk‐ro, Ilsandong‐guGoyangGyeonggi10326Republic of Korea
| | - Bogyu Choi
- Department of Biomedical ScienceCHA UniversityCHA BiocomplexSeongnam‐siGyeonggi‐do13488Republic of Korea
| | - Hansoo Park
- Department of Integrative EngineeringChung‐Ang UniversitySeoul06974Republic of Korea
| | - Soo‐Hong Lee
- Department of Medical BiotechnologyDongguk University32 Dongguk‐ro, Ilsandong‐guGoyangGyeonggi10326Republic of Korea
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Chau THT, Lee EY. Development of cell-free platform-based toehold switch system for detection of IP-10 mRNA, an indicator for acute kidney allograft rejection diagnosis. Clin Chim Acta 2020; 510:619-624. [PMID: 32860784 DOI: 10.1016/j.cca.2020.08.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 10/23/2022]
Abstract
Quantitative PCR and droplet digital PCR were elucidated as non-invasive methods for quantifying the level of signaling markers, such as CD3ɛ and IP-10 mRNAs from urine samples, for the diagnosis of acute rejection in the kidney allograft recipients. Although the sensitivity and accuracy make PCR as the gold standard for diagnosis, a point-of-care (POC) testing is required for the rapid and low-cost preliminary prognosis and diagnosis. In this study, the applicability of the cell-free platform-based toehold switch system was preliminary demonstrated for the detection of synthetic IP-10 mRNA, one of indicators of acute kidney allograft rejection. For POC applications, the colorimetric output was utilized for direct recognition by naked eyes. A total of 5 switches was screened from 289 putative toehold switches. Among these, the toehold switch 4 illustrated the highest fold change after a 45-min incubation with relatively high specificity. The sensitivity of the toehold switch 4 was also demonstrated with the cognate IP-10 mRNA. The results in this study showed the feasibility of the synthetic system of RNA toehold switches in combination with the cell-free platform as a preliminary prognostic and diagnostic method for acute kidney allograft rejection.
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Affiliation(s)
- Tin Hoang Trung Chau
- Department of Chemical Engineering, Kyung Hee University, Yongin-si, Gyeonggi-do 17104, South Korea
| | - Eun Yeol Lee
- Department of Chemical Engineering, Kyung Hee University, Yongin-si, Gyeonggi-do 17104, South Korea.
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Sooriyaarachchi D, Maharubin S, Tan GZ. ZnO Nanowire-Anchored Microfluidic Device With Herringbone Structure Fabricated by Maskless Photolithography. Biomed Eng Comput Biol 2020; 11:1179597220941431. [PMID: 32704232 PMCID: PMC7361484 DOI: 10.1177/1179597220941431] [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: 02/20/2020] [Accepted: 06/21/2020] [Indexed: 12/29/2022] Open
Abstract
The integration of nanomaterials in microfluidic devices has emerged as a new research paradigm. Microfluidic devices composed of ZnO nanowires have been developed for the collection of urine extracellular vesicles (EVs) at high efficiency and in situ extraction of various microRNAs (miRNAs). The devices can be used for diagnosing various diseases, including kidney diseases and cancers. A major research need for developing micro total analysis systems is to enhance extraction efficiency. This article presents a novel fabrication method for a herringbone-patterned microfluidic device anchored with ZnO nanowire arrays. The substrates with herringbone patterns were created by maskless photolithography. The ZnO nanowire arrays were grown on the substrates by chemical bathing. The patterned design was to introduce turbulent flows as opposed to laminar flow in traditional devices to increase the mixing and contact of the urine sample with ZnO nanowires. The device showed reduced flow rates compared with conventional planar microfluidic channels and successfully extracted urine EV-encapsulated miRNAs.
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Affiliation(s)
- Dilshan Sooriyaarachchi
- Department of Industrial, Manufacturing and Systems Engineering, Texas Tech University, Lubbock, TX, USA
| | - Shahrima Maharubin
- Department of Industrial, Manufacturing and Systems Engineering, Texas Tech University, Lubbock, TX, USA
| | - George Z Tan
- Department of Industrial, Manufacturing and Systems Engineering, Texas Tech University, Lubbock, TX, USA
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Kang HW, Lee HY, Byun YJ, Jeong P, Yoon JS, Kim DH, Kim WT, Kim YJ, Lee SC, Yun SJ, Kim WJ. A novel urinary mRNA signature using the droplet digital polymerase chain reaction platform improves discrimination between prostate cancer and benign prostatic hyperplasia within the prostate-specific antigen gray zone. Investig Clin Urol 2020; 61:411-418. [PMID: 32665998 PMCID: PMC7329636 DOI: 10.4111/icu.2020.61.4.411] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 03/12/2020] [Indexed: 11/18/2022] Open
Abstract
Purpose The aim of this study was to identify a noninvasive urinary marker for prostate cancer (PCa) diagnosis and to validate the clinical performance of this novel urinary mRNA signature using the droplet digital polymerase chain reaction (ddPCR) approach. Materials and Methods A gene expression microarray (HT-12, Illumina Inc., USA) was used to identify genes differentially expressed between 16 PCa and 8 benign prostatic hyperplasia (BPH) tissues; ddPCR (QX200; Bio-Rad Laboratories, USA) was carried out to quantify the expression of selected genes in urine. The urinary molecular PCa risk score (UMPCaRS) was calculated by using the sum of three upregulated genes as the numerator and the sum of three downregulated genes as the denominator. The diagnostic utility of the UMPCaRS was validated by using a screening set (10 PCa and 10 BPH samples) and a validation set (131 PCa and 105 BPH samples). Results Three upregulated genes (PDLIM5, GDF-15, THBS4) and three downregulated genes (UPK1A, SSTR3, NPFFR2) were selected from the microarray and subjected to ddPCR. The UMPCaRS for PCa in the screening and validation sets was significantly higher than that for BPH. For the validation set, the diagnostic accuracy of the UMPCaRS was comparable with that of prostate-specific antigen (PSA). Importantly, in the "PSA gray zone" (3-10 ng/mL), the AUC for the UMPCaRS was 0.843 and that for PSA was 0.628 (p<0.001). Conclusions The data demonstrate that the UMPCaRS is useful for discriminating between PCa and BPH in the "PSA gray zone".
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Affiliation(s)
- Ho Won Kang
- Department of Urology, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Hee Youn Lee
- Department of Urology, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Young Joon Byun
- Department of Urology, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Pildu Jeong
- Department of Urology, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Jin Sun Yoon
- Molecular Genetics, Bio-Medical Science Co., Ltd., Seoul, Korea
| | - Dong Ho Kim
- Molecular Genetics, Bio-Medical Science Co., Ltd., Seoul, Korea
| | - Won Tae Kim
- Department of Urology, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Yong-June Kim
- Department of Urology, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Sang-Cheol Lee
- Department of Urology, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Seok Joong Yun
- Department of Urology, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Wun-Jae Kim
- Department of Urology, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju, Korea
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11
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Ko EJ, Seo JW, Kim KW, Kim BM, Cho JH, Kim CD, Seok J, Yang CW, Lee SH, Chung BH. Phenotype and molecular signature of CD8+ T cell subsets in T cell- mediated rejections after kidney transplantation. PLoS One 2020; 15:e0234323. [PMID: 32530943 PMCID: PMC7292394 DOI: 10.1371/journal.pone.0234323] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 05/24/2020] [Indexed: 01/08/2023] Open
Abstract
We investigated the phenotype and molecular signatures of CD8+ T cell subsets in kidney-transplant recipients (KTRs) with biopsy-proven T cell-mediated rejection (TCMR). We included 121 KTRs and divided them into three groups according to the pathologic or clinical diagnosis: Normal biopsy control (NC)(n = 32), TCMR (n = 50), and long-term graft survival (LTGS)(n = 39). We used flowcytometry and microarray to analyze the phenotype and molecular signatures of CD8+ T cell subsets using peripheral blood from those patients and analyzed significant gene expressions according to CD8+ T cell subsets. We investigated whether the analysis of CD8+ T cell subsets is useful for predicting the development of TCMR. CCR7+CD8+ T cells significantly decreased, but CD28nullCD57+CD8+ T cells and CCR7-CD45RA+CD8+ T cells showed an increase in the TCMR group compared to other groups (p<0.05 for each); hence CCR7+CD8+ T cells showed significant negative correlations to both effector CD8+ T cells. We identified genes significantly associated with the change of CCR7+CD8+ T, CCR7-CD45RA+CD8+ T, and CD28nullCD57+CD8+ T cells in an ex vivo study and found that most of them were included in the significant genes on in vitro CCR7+CD8+ T cells. Finally, the decrease of CCR7+CD8+ T cells relative to CD28nullCD57+ T or CCR7-CD45RA+CD8+ T cells can predict TCMR significantly in the whole clinical cohort. In conclusion, phenotype and molecular signature of CD8+ T subsets showed a significant relationship to the development of TCMR; hence monitoring of CD8+ T cell subsets may be a useful for predicting TCMR in KTRs.
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Affiliation(s)
- Eun Jeong Ko
- Convergent Research Consortium for Immunologic Disease, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jung-Woo Seo
- Department of Core Research Laboratory, Medical Science Research Institute, Kyung Hee University Hospital at Gangdong, Seoul, Korea
| | - Kyoung Woon Kim
- Convergent Research Consortium for Immunologic Disease, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Bo-Mi Kim
- Convergent Research Consortium for Immunologic Disease, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jang-Hee Cho
- Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, Korea
| | - Chan-Duck Kim
- Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, Korea
| | - Junhee Seok
- School of Electrical Engineering, Korea University, Seoul, South Korea
| | - Chul Woo Yang
- Convergent Research Consortium for Immunologic Disease, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sang-Ho Lee
- Department of Internal Medicine, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Byung Ha Chung
- Convergent Research Consortium for Immunologic Disease, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
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12
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Abstract
Early detection of graft injury after kidney transplantation is key to maintaining long-term good graft function. Graft injury could be due to a multitude of factors including ischaemia reperfusion injury, cell or antibody-mediated rejection, progressive interstitial fibrosis and tubular atrophy, infections and toxicity from the immunosuppressive drugs themselves. The current gold standard for assessing renal graft dysfunction is renal biopsy. However, biopsy is usually late when triggered by a change in serum creatinine and of limited utility in diagnosis of early injury when histological changes are equivocal. Therefore, there is a need for timely, objective and non-invasive diagnostic techniques with good early predictive value to determine graft injury and provide precision in titrating immunosuppression. We review potential novel plasma and urine biomarkers that offer sensitive new strategies for early detection and provide major insights into mechanisms of graft injury. This is a rapidly expanding field, but it is likely that a combination of biomarkers will be required to provide adequate sensitivity and specificity for detecting graft injury.
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13
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Jeon HJ, Lee JG, Kim K, Jang JY, Han SW, Choi J, Ryu JH, Koo TY, Jeong JC, Lee JW, Ishida H, Park JB, Lee SH, Ahn C, Yang J. Peripheral blood transcriptome analysis and development of classification model for diagnosing antibody-mediated rejection vs accommodation in ABO-incompatible kidney transplant. Am J Transplant 2020; 20:112-124. [PMID: 31373158 DOI: 10.1111/ajt.15553] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 07/02/2019] [Accepted: 07/28/2019] [Indexed: 02/07/2023]
Abstract
The major obstacle to successful ABO blood group-incompatible kidney transplantation (ABOi KT) is antibody-mediated rejection (AMR). This study aimed to investigate transcriptional profiles through RNA sequencing and develop a minimally invasive diagnostic tool for discrimination between accommodation and early acute AMR in ABOi KT. Twenty-eight ABOi KT patients were selected: 18 with accommodation and 10 with acute AMR at the 10th day posttransplant protocol biopsy. Complete transcriptomes of their peripheral blood were analyzed by RNA sequencing. Candidate genes were selected by bioinformatics analysis, validated with quantitative polymerase chain reaction, and used to develop a classification model to diagnose accommodation. A total of 1385 genes were differentially expressed in accommodation compared with in AMR with P-adjusted < .05. Functional annotation and gene set enrichment analysis identified several immune-related and immunometabolic pathways. A 5-gene classification model including COX7A2L, CD69, CD14, CFD, and FOXJ3 was developed by logistic regression analysis. The model was further validated with an independent cohort and discriminated between accommodation and AMR with 92.7% sensitivity, 85.7% specificity, and 91.7% accuracy. Our study suggests that a classification model based on peripheral blood transcriptomics may allow minimally invasive diagnosis of acute AMR vs accommodation and subsequent patient-tailored immunosuppression in ABOi KT.
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Affiliation(s)
- Hee Jung Jeon
- Department of Internal Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Jae-Ghi Lee
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Kwangsoo Kim
- Division of Clinical Bioinformatics, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Joon Young Jang
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Sung Won Han
- School of Industrial Management Engineering, Korea University, Seoul, Republic of Korea
| | - Jinwoo Choi
- School of Industrial Management Engineering, Korea University, Seoul, Republic of Korea
| | - Jung-Hwa Ryu
- Transplantation Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Tai Yeon Koo
- Transplantation Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jong Cheol Jeong
- Department of Nephrology, Ajou University School of Medicine, Suwon, Gyeonggi-do, Republic of Korea
| | - Jae Wook Lee
- Nephrology Clinic, National Cancer Center, Goyang, Gyeonggi-do, Republic of Korea
| | - Hideki Ishida
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
| | - Jae Berm Park
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Sang Ho Lee
- Department of Internal Medicine, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Curie Ahn
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jaeseok Yang
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea.,Transplantation Center, Seoul National University Hospital, Seoul, Republic of Korea.,Department of Surgery, Seoul National University Hospital, Seoul, Republic of Korea
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14
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Moore JB, Merchant ML, Uchida S. Circular RNAs as diagnostic tool for renal transplant patients with acute rejection. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:S302. [PMID: 32016021 PMCID: PMC6976506 DOI: 10.21037/atm.2019.11.08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 10/25/2019] [Indexed: 11/16/2023]
Affiliation(s)
- Joseph B. Moore
- Diabetes and Obesity Center, University of Louisville, Louisville, KY, USA
- The Christina Lee Brown Envirome Institute, Department of Medicine, University of Louisville, Louisville, KY, USA
| | - Michael L. Merchant
- The Christina Lee Brown Envirome Institute, Department of Medicine, University of Louisville, Louisville, KY, USA
- Division of Nephrology and Hypertension, Department of Medicine, University of Louisville, Louisville, KY, USA
| | - Shizuka Uchida
- Diabetes and Obesity Center, University of Louisville, Louisville, KY, USA
- The Christina Lee Brown Envirome Institute, Department of Medicine, University of Louisville, Louisville, KY, USA
- Cardiovascular Innovation Institute, University of Louisville, Louisville, KY, USA
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15
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Rodríguez-Serrano AF, Hsing IM. 110th Anniversary: Engineered Ribonucleic Acid Control Elements as Biosensors for in Vitro Diagnostics. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b03963] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alan F. Rodríguez-Serrano
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - I-Ming Hsing
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
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16
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Bazzell BG, Rainey WE, Auchus RJ, Zocco D, Bruttini M, Hummel SL, Byrd JB. Human Urinary mRNA as a Biomarker of Cardiovascular Disease. CIRCULATION-GENOMIC AND PRECISION MEDICINE 2019; 11:e002213. [PMID: 30354328 PMCID: PMC6760265 DOI: 10.1161/circgen.118.002213] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Supplemental Digital Content is available in the text. Background mRNA in urine supernatant (US-mRNA) might encode information about renal and cardiorenal pathophysiology, including hypertension. H, whether the US-mRNA transcriptome reflects that of renal tissues and whether changes in renal physiology are detectable using US-mRNA is unknown. Methods We compared transcriptomes of human urinary extracellular vesicles and human renal cortex. To avoid similarities attributable to ubiquitously expressed genes, we separately analyzed ubiquitously expressed and highly kidney-enriched genes. To determine whether US-mRNA reflects changes in renal gene expression, we assayed cell-depleted urine for transcription factor activity of mineralocorticoid receptors (MR) using probe-based quantitative polymerase chain reaction. The urine was collected from prehypertensive individuals (n=18) after 4 days on low-sodium diet to stimulate MR activity and again after suppression of MR activity via sodium infusion. Results In comparing this US-mRNA and human kidney cortex, expression of 55 highly kidney-enriched genes correlated strongly (rs=0.82) while 8457 ubiquitously expressed genes correlated moderately (rs=0.63). Standard renin-angiotensin-aldosterone system phenotyping confirmed the expected response to sodium loading. Cycle threshold values for MR-regulated targets (SCNN1A, SCNN1G, TSC22D3) changed after sodium loading, and MR-regulated targets (SCNN1A, SCNN1G, SGK1, and TSC22D3) correlated significantly with serum aldosterone and inversely with urinary sodium excretion. Conclusions RNA-sequencing of urinary extracellular vesicles shows concordance with human kidney. Perturbation in human endocrine signaling (MR activation) was accompanied by changes in mRNA in urine supernatant. Our findings could be useful for individualizing pharmacological therapy in patients with disorders of mineralocorticoid signaling, such as resistant hypertension. More generally, these insights could be used to noninvasively identify putative biomarkers of disordered renal and cardiorenal physiology.
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Affiliation(s)
- Brian G Bazzell
- Departments of Internal Medicine, University of Michigan, Ann Arbor (B.G.B., R.J.A., S.L.H., J.B.B.)
| | - William E Rainey
- Molecular and Integrative Physiology, University of Michigan, Ann Arbor (W.E.R.)
| | - Richard J Auchus
- Departments of Internal Medicine, University of Michigan, Ann Arbor (B.G.B., R.J.A., S.L.H., J.B.B.)
| | | | - Marco Bruttini
- Department of Life Sciences, Università degli Studi di Siena, Italy (M.B.)
| | - Scott L Hummel
- Departments of Internal Medicine, University of Michigan, Ann Arbor (B.G.B., R.J.A., S.L.H., J.B.B.).,Section of Cardiology, Ann Arbor Veterans Affairs Medical Center, MI (S.L.H.)
| | - James Brian Byrd
- Departments of Internal Medicine, University of Michigan, Ann Arbor (B.G.B., R.J.A., S.L.H., J.B.B.)
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17
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For what factors should we normalize urinary extracellular mRNA biomarkers? BIOMOLECULAR DETECTION AND QUANTIFICATION 2019; 17:100090. [PMID: 31285998 PMCID: PMC6591792 DOI: 10.1016/j.bdq.2019.100090] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 04/11/2019] [Accepted: 04/15/2019] [Indexed: 02/06/2023]
Abstract
mRNA is a critical biomolecule involved in the manifestation of the genetic code into functional protein molecules. Its critical role in the central dogma has made it a key target in many studies to determine biomarkers and drug targets for numerous diseases. Currently, there is a growing body of evidence to suggest that RNA molecules around the size of full-length mRNA transcripts can be assayed in the supernatant of human urine and urinary extracellular mRNA could provide information about transcription in cells of urogenital tissues. However, the optimal means of normalizing these signals is unclear. In this paper, we describe relevant first principles as well as research findings from our lab and other labs toward normalization of urinary extracellular mRNA.
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18
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Kim KW, Kim BM, Doh KC, Kim CD, Jeong KH, Lee SH, Yang CW, Chung BH. Clinical significance of CD161+CD4+ T cells in the development of chronic antibody-mediated rejection in kidney transplant recipients. PLoS One 2018; 13:e0200631. [PMID: 30011312 PMCID: PMC6047803 DOI: 10.1371/journal.pone.0200631] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 06/29/2018] [Indexed: 11/26/2022] Open
Abstract
In this study, we investigated whether CD161+CD4+ T cells can reflect the Th17 pathway in kidney transplant recipients (KTRs) and investigated the clinical significance of this cell type in chronic antibody-mediated rejection (cAMR) in KT. First, we investigated the relationship between CD161+CD4+ T and Th17 cells by flow cytometry and microarray analysis in an in vitro study. Second, we compared the proportion of T cell subsets including CD161+CD4+ T cells in cAMR (n = 18), long-term graft survival (LTGS) (n = 46), and interstitial fibrosis/tubular atrophy (IF/TA) (n = 22). We compared CD161+ cell infiltration between cAMR and IF/TA and also examined the effect of CD161+ T cells on human renal proximal tubular epithelial cells (HRPTEpiC). In flow cytometry, the proportion of CD161+CD4+ T cells showed a significant correlation with the proportion of Th17 cells. In microarray analysis, transcripts associated with the Th17 pathway such as IL18RAP, IL-18R1, IL23R, IL12RB2, RORC, TBX21, and EOMES were upregulated in CD161+ cells compared with CD161- cells. In an ex vivo study, only CD161+CD4+ T cells showed a significant increase in the cAMR group compared with IF/TA and LTGS groups. In allograft tissue, CD161+ cells showed a higher level of infiltration in the cAMR group than the IF/TA group. Lastly, CD161+ T cells increased the production of inflammatory cytokines from HRPTEpiC in a dose-dependent manner. This study suggests that monitoring of CD161+ T cells can be useful to detect the progression of cAMR.
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Affiliation(s)
- Kyoung Woon Kim
- Convergent Research Consortium for Immunologic Disease, Seoul St. Mary's Hospital, Seoul, Korea
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea Seoul, Korea
| | - Bo-Mi Kim
- Convergent Research Consortium for Immunologic Disease, Seoul St. Mary's Hospital, Seoul, Korea
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea Seoul, Korea
| | - Kyoung Chan Doh
- Convergent Research Consortium for Immunologic Disease, Seoul St. Mary's Hospital, Seoul, Korea
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea Seoul, Korea
| | - Chan-Duck Kim
- Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, Korea
| | - Kyung Hwan Jeong
- Department of Internal Medicine, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Sang-Ho Lee
- Department of Internal Medicine, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Chul Woo Yang
- Convergent Research Consortium for Immunologic Disease, Seoul St. Mary's Hospital, Seoul, Korea
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea Seoul, Korea
| | - Byung Ha Chung
- Convergent Research Consortium for Immunologic Disease, Seoul St. Mary's Hospital, Seoul, Korea
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea Seoul, Korea
- * E-mail:
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