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Korecka K, Gawin M, Pastuszka A, Partyka M, Koszutski T, Pietrowska M, Hyla-Klekot L. Proteomics of urinary small extracellular vesicles in early diagnosis of kidney diseases in children-expectations and limitations. Proteomics 2024; 24:e2300168. [PMID: 38213025 DOI: 10.1002/pmic.202300168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 12/14/2023] [Accepted: 12/20/2023] [Indexed: 01/13/2024]
Abstract
The primary function of the kidneys is to maintain systemic homeostasis (disruption of renal structure and function results in multilevel impairment of body function). Kidney diseases are characterized by a chronic, progressive course and may result in the development of chronic kidney disease (CKD). Evaluation of the composition of the proteome of urinary small extracellular vesicles (sEVs) as a so-called liquid biopsy is a promising new research direction. Knowing the composition of sEV could allow localization of cellular changes in specific sections of the nephron or the interstitial tissue before fixed changes, detectable only at an advanced stage of the disease, occur. Research is currently underway on the role of sEVs in the diagnosis and monitoring of many disease entities. Reports in the literature on the subject include: diabetic nephropathy, focal glomerulosclerosis in the course of glomerulopathies, renal fibrosis of various etiologies. Studies on pediatric patients are still few, involving piloting if small groups of patients without validation studies. Here, we review the literature addressing the use of sEV for diagnosis of the most common urinary disorders in children. We evaluate the clinical utility and define limitations of markers present in sEV as potential liquid biopsy.
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Affiliation(s)
- Klaudia Korecka
- Clinical Department of Paediatric Surgery and Urology, Medical University of Silesia in Katowice, Katowice, Poland
| | - Marta Gawin
- Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, Gliwice, Poland
| | - Agnieszka Pastuszka
- Clinical Department of Paediatric Surgery and Urology, Medical University of Silesia in Katowice, Katowice, Poland
| | - Mirosław Partyka
- Department of Laboratory Diagnostics, School of Medicine in Katowice, Medical University of Silesia in Katowice, Katowice, Poland
| | - Tomasz Koszutski
- Clinical Department of Paediatric Surgery and Urology, Medical University of Silesia in Katowice, Katowice, Poland
| | - Monika Pietrowska
- Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, Gliwice, Poland
| | - Lidia Hyla-Klekot
- Clinical Department of Paediatric Surgery and Urology, Medical University of Silesia in Katowice, Katowice, Poland
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Brasseler M, Mischak H, Schanstra JP, Michel JM, Pape L, Felderhoff-Müser U. Gestational Age-Related Urinary Peptidome Changes in Preterm and Term Born Infants. Neonatology 2024; 121:305-313. [PMID: 38382482 DOI: 10.1159/000535355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 11/15/2023] [Indexed: 02/23/2024]
Abstract
INTRODUCTION Preterm infants are at risk for a variety of somatic and neurological disorders. In recent years, biofluid proteomics has emerged as a potential diagnostic tool for biomarker analysis. The aim of this study was to determine gestational age (GA)-related patterns of the urinary peptidome in preterm infants for researching potential novel prognostic biomarkers. METHODS We performed urinary peptidomics in longitudinal samples of 24 preterm (mean GA weeks 28 + 1 [24+1-31 + 6]) and 27 term born controls (mean GA weeks 39 + 2 [37+0-41 + 1]) using capillary electrophoresis combined with mass spectrometry (CE-MS). Peptides were sequenced using CE-MS/MS or LC-MS/MS analysis and were deposited, matched, and annotated in a Microsoft SQL database for statistical analysis. We compared their abundance in urine of preterm and term born infants and performed a validation analysis as well as correlations to GA and clinical risk scores. RESULTS Our results confirmed significant differences in the abundance of peptides and the hypothesis of age-dependent urinary peptidome changes in preterm and term infants. In preterm infants, SLC38A10 (solute carrier family 38 member 10) is one of the most abundant peptides. Combined urinary peptides correlated with clinical risk scores (p < 0.05). CONCLUSION This is the first study reporting GA-related urinary peptidome changes of preterm infants detected by CE-MS and a modulation of the peptidome with GA. Further research is required to locate peptidome clusters correlated with specific clinical complications and long-term outcome. This may identify preterm infants at higher risk for adverse outcome who would benefit from early intervention.
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Affiliation(s)
- Maire Brasseler
- Department of Pediatrics I, Neonatology, Pediatric Intensive Care, Pediatric Infectiology, Pediatric Neurology and Centre for Translational and Behavioral Sciences (C-TNBS), University of Duisburg-Essen, Essen, Germany
| | - Harald Mischak
- Mosaiques Diagnostics GmbH, Hannover, Germany, BHF Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Joost P Schanstra
- Institut National de la Santé et de la Recherche Médicale (INSERM), Institute of Cardiovascular and Metabolic Disease, Toulouse, France
- Université Toulouse III Paul-Sabatier, Toulouse, France
| | - Juliane Marie Michel
- Department of Pediatrics I, Neonatology, Pediatric Intensive Care, Pediatric Infectiology, Pediatric Neurology and Centre for Translational and Behavioral Sciences (C-TNBS), University of Duisburg-Essen, Essen, Germany
| | - Lars Pape
- Department of Pediatrics II, Nephrology, Gastroenterology, Hepatology, Transplantation, Endocrinology and Sonography, University Duisburg-Essen, Essen, Germany
| | - Ursula Felderhoff-Müser
- Department of Pediatrics I, Neonatology, Pediatric Intensive Care, Pediatric Infectiology, Pediatric Neurology and Centre for Translational and Behavioral Sciences (C-TNBS), University of Duisburg-Essen, Essen, Germany
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Maurer J, Grouzmann E, Eugster PJ. Tutorial review for peptide assays: An ounce of pre-analytics is worth a pound of cure. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1229:123904. [PMID: 37832388 DOI: 10.1016/j.jchromb.2023.123904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/04/2023] [Accepted: 10/05/2023] [Indexed: 10/15/2023]
Abstract
The recent increase in peptidomimetic-based medications and the growing interest in peptide hormones has brought new attention to the quantification of peptides for diagnostic purposes. Indeed, the circulating concentrations of peptide hormones in the blood provide a snapshot of the state of the body and could eventually lead to detecting a particular health condition. Although extremely useful, the quantification of such molecules, preferably by liquid chromatography coupled to mass spectrometry, might be quite tricky. First, peptides are subjected to hydrolysis, oxidation, and other post-translational modifications, and, most importantly, they are substrates of specific and nonspecific proteases in biological matrixes. All these events might continue after sampling, changing the peptide hormone concentrations. Second, because they include positively and negatively charged groups and hydrophilic and hydrophobic residues, they interact with their environment; these interactions might lead to a local change in the measured concentrations. A phenomenon such as nonspecific adsorption to lab glassware or materials has often a tremendous effect on the concentration and needs to be controlled with particular care. Finally, the circulating levels of peptides might be low (pico- or femtomolar range), increasing the impact of the aforementioned effects and inducing the need for highly sensitive instruments and well-optimized methods. Thus, despite the extreme diversity of these peptides and their matrixes, there is a common challenge for all the assays: the need to keep concentrations unchanged from sampling to analysis. While significant efforts are often placed on optimizing the analysis, few studies consider in depth the impact of pre-analytical steps on the results. By working through practical examples, this solution-oriented tutorial review addresses typical pre-analytical challenges encountered during the development of a peptide assay from the standpoint of a clinical laboratory. We provide tips and tricks to avoid pitfalls as well as strategies to guide all new developments. Our ultimate goal is to increase pre-analytical awareness to ensure that newly developed peptide assays produce robust and accurate results.
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Affiliation(s)
- Jonathan Maurer
- Service of Clinical Pharmacology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Eric Grouzmann
- Service of Clinical Pharmacology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Philippe J Eugster
- Service of Clinical Pharmacology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
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Begou O, Pavlaki A, Deda O, Bollenbach A, Drabert K, Gika H, Farmaki E, Dotis J, Printza N, Theodoridis G, Tsikas D. Diminished Systemic Amino Acids Metabolome and Lipid Peroxidation in Ureteropelvic Junction Obstruction (UPJO) Infants Requiring Surgery. J Clin Med 2021; 10:jcm10071467. [PMID: 33918213 PMCID: PMC8038180 DOI: 10.3390/jcm10071467] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 03/22/2021] [Accepted: 03/23/2021] [Indexed: 12/19/2022] Open
Abstract
Congenital anomalies of the urinary tract, and particularly of obstructive nephropathy such as ureteropelvic junction obstruction (UPJO) in infants, can later lead to chronic kidney disease and hypertension. Fundamental questions regarding underlying mechanisms remain unanswered. The aim of the present study was to quantitate the systemic amino acids metabolome in 21 UPJO infants requiring surgery (Group A) and 21 UPJO infants under conservative treatment (Group B). Nineteen healthy age-matched infants served as controls (Group C). Serum amino acids involved in several pathways and representative metabolites, including the L-arginine-derived nitric oxide (NO) metabolites nitrite and nitrate and the lipid peroxidation biomarker malondialdehyde (MDA) were measured by gas chromatography–mass spectrometry (GC–MS) methods using their stable-isotope labeled analogs as internal standards after derivatization to their methyl esters N-pentafluoropropionic amides (amino acids) and to their pentafluorobenzyl derivatives (nitrite, nitrate, MDA). The concentrations of the majority of the biomarkers were found to be lower in Group A compared to Group B. Statistical analysis revealed clear differentiation between the examined study groups. Univariate statistical analysis highlighted serum homoarginine (q = 0.006), asymmetric dimethylarginine (q = 0.05) and malondialdehyde (q = 0.022) as potential biomarkers for UPJO infants requiring surgery. Group A also differed from Group B with respect to the diameter of the preoperative anterior–posterior renal pelvis (AP) as well as regarding the number and extent of inverse correlations between AP and the serum concentrations of the biomarkers. In Group A, but not in Group B, the AP diameter strongly correlated with hydroxy-proline (r = −0.746, p = 0.0002) and MDA (r = −0.754, p = 0.002). Our results indicate a diminished amino acids metabolome in the serum of UPJO infants requiring surgery comparing to a conservative group.
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Affiliation(s)
- Olga Begou
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece;
- Biomic_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, B1.4, 10th km Thessaloniki-Thermi Rd, P.O. Box 8318, 57001 Thessaloniki, Greece; (O.D.); (H.G.)
- Core Unit Proteomics, Hannover Medical School, Institute of Toxicology, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany; (A.B.); (K.D.); (D.T.)
- Correspondence: ; Tel.: +30-2310-990596
| | - Antigoni Pavlaki
- Paediatric Nephrology Unit, First Department of Paediatrics, Hippokratio Hospital, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece; (A.P.); (J.D.); (N.P.)
| | - Olga Deda
- Biomic_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, B1.4, 10th km Thessaloniki-Thermi Rd, P.O. Box 8318, 57001 Thessaloniki, Greece; (O.D.); (H.G.)
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
| | - Alexander Bollenbach
- Core Unit Proteomics, Hannover Medical School, Institute of Toxicology, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany; (A.B.); (K.D.); (D.T.)
| | - Kathrin Drabert
- Core Unit Proteomics, Hannover Medical School, Institute of Toxicology, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany; (A.B.); (K.D.); (D.T.)
| | - Helen Gika
- Biomic_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, B1.4, 10th km Thessaloniki-Thermi Rd, P.O. Box 8318, 57001 Thessaloniki, Greece; (O.D.); (H.G.)
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
| | - Evangelia Farmaki
- Paediatric Immunology and Rheumatology Referral Center, First Department of Paediatrics, Hippokratio Hospital, University Campus, 54124 Thessaloniki, Greece;
| | - John Dotis
- Paediatric Nephrology Unit, First Department of Paediatrics, Hippokratio Hospital, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece; (A.P.); (J.D.); (N.P.)
| | - Nikoleta Printza
- Paediatric Nephrology Unit, First Department of Paediatrics, Hippokratio Hospital, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece; (A.P.); (J.D.); (N.P.)
| | - Georgios Theodoridis
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece;
- Biomic_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, B1.4, 10th km Thessaloniki-Thermi Rd, P.O. Box 8318, 57001 Thessaloniki, Greece; (O.D.); (H.G.)
| | - Dimitrios Tsikas
- Core Unit Proteomics, Hannover Medical School, Institute of Toxicology, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany; (A.B.); (K.D.); (D.T.)
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Pavlaki A, Begou O, Deda O, Farmaki E, Dotis J, Gika H, Taparkou A, Raikos N, Papachristou F, Theodoridis G, Printza N. Serum-Targeted HILIC-MS Metabolomics-Based Analysis in Infants with Ureteropelvic Junction Obstruction. J Proteome Res 2020; 19:2294-2303. [PMID: 32351114 DOI: 10.1021/acs.jproteome.9b00855] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Ureteropelvic junction obstruction (UPJO) constitutes the predominant cause of obstructive nephropathy in both neonates and infants. Fundamental questions regarding UPJO's mechanism, assessment, and treatment still remain unanswered. The aim of the present study was to elucidate potential differences through serum metabolic profiling of surgical cases of infants with UPJO compared to both nonsurgical cases and healthy age-matched controls. Early diagnosis of renal dysfunction in this cohort based on highlighted biomarkers was the ultimate goal. Thus, serum samples were collected from 20 patients preoperatively, 19 patients with mild stenosis treated conservatively, and 17 healthy controls. All samples were subjected to targeted metabolomics analysis by hydrophilic interaction liquid chromatography coupled to mass spectrometry (HILIC LC-MS/MS). Both univariate and multivariate statistical analyses were performed. Principal component analysis (PCA) and orthogonal partial least squares-discriminant analysis (OPLS-DA) score plots showed that the studied groups differed significantly, with a panel of metabolites, including creatinine, tryptophan, choline, and aspartate, distinguishing patients who required surgery from those followed by systematical monitoring as well as from healthy controls, showing high performance as indicators of UPJO disease.
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Affiliation(s)
- Antigoni Pavlaki
- Paediatric Nephrology Unit, First Department of Paediatrics, Hippokratio Hospital, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Olga Begou
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.,Biomic_Auth, Bioanalysis and Omics Lab, Centre for Interdisciplinary Research of Aristotle University of Thessaloniki, Innovation Area of Thessaloniki, Thermi 57001, Greece
| | - Olga Deda
- Biomic_Auth, Bioanalysis and Omics Lab, Centre for Interdisciplinary Research of Aristotle University of Thessaloniki, Innovation Area of Thessaloniki, Thermi 57001, Greece.,Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Evangelia Farmaki
- Paediatric Immunology and Rheumatology Referral Center, First Department of Paediatrics, Hippokratio Hospital, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - John Dotis
- Paediatric Nephrology Unit, First Department of Paediatrics, Hippokratio Hospital, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Helen Gika
- Biomic_Auth, Bioanalysis and Omics Lab, Centre for Interdisciplinary Research of Aristotle University of Thessaloniki, Innovation Area of Thessaloniki, Thermi 57001, Greece.,Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Anna Taparkou
- Paediatric Immunology and Rheumatology Referral Center, First Department of Paediatrics, Hippokratio Hospital, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Nikolaos Raikos
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Fotios Papachristou
- Paediatric Nephrology Unit, First Department of Paediatrics, Hippokratio Hospital, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Georgios Theodoridis
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.,Biomic_Auth, Bioanalysis and Omics Lab, Centre for Interdisciplinary Research of Aristotle University of Thessaloniki, Innovation Area of Thessaloniki, Thermi 57001, Greece
| | - Nikoleta Printza
- Paediatric Nephrology Unit, First Department of Paediatrics, Hippokratio Hospital, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
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Chen H, Lin H, Xu M, Xu G, Fang X, He L, Chen Z, Wu Z, Geng H. Quantitative Urinary Proteome Reveals Potential Biomarkers for Ureteropelvic Junction Obstruction. Proteomics Clin Appl 2018; 13:e1800101. [PMID: 30471240 DOI: 10.1002/prca.201800101] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Revised: 11/08/2018] [Indexed: 01/07/2023]
Affiliation(s)
- Honghao Chen
- Department of Pediatric UrologyXinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine 200092 Shanghai China
| | - Houwei Lin
- Department of Pediatric UrologyXinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine 200092 Shanghai China
| | - Maosheng Xu
- Department of Pediatric UrologyXinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine 200092 Shanghai China
| | - Guofeng Xu
- Department of Pediatric UrologyXinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine 200092 Shanghai China
| | - Xiaoliang Fang
- Department of Pediatric UrologyXinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine 200092 Shanghai China
| | - Lei He
- Department of Pediatric UrologyXinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine 200092 Shanghai China
| | - Zhoutong Chen
- Department of Pediatric UrologyXinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine 200092 Shanghai China
| | - Zhixiang Wu
- Department of Pediatric SurgeryXinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Hongquan Geng
- Department of Pediatric UrologyXinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine 200092 Shanghai China
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