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Słomka A, Łęcka M, Styczyński J. Hepcidin in Children and Adults with Acute Leukemia or Undergoing Hematopoietic Cell Transplantation: A Systematic Review. Cancers (Basel) 2022; 14:cancers14194936. [PMID: 36230859 PMCID: PMC9561996 DOI: 10.3390/cancers14194936] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 09/24/2022] [Accepted: 10/04/2022] [Indexed: 01/19/2023] Open
Abstract
Objectives: The association between hepcidin and acute leukemia (AL) or hematopoietic cell transplantation (HCT) in children and adults remains obscure. We aimed to assess this potential relationship through a systematic review of observational studies. Methods: An electronic search of three databases, including PubMed, Scopus, and Web of Science Core Collection, was performed up to 31 March 2022. Two independent reviewers assessed the search results according to predetermined inclusion and exclusion criteria, following PRISMA guidelines. Results: Of the 3607 titles identified, 13 studies published between 2008 and 2021 met the inclusion criteria. Most studies included a moderate number of participants and controls and used enzyme-linked immunosorbent assay (ELISA) to determine serum hepcidin levels. The principal findings: (1) serum hepcidin levels in patients with AL or undergoing HCT are increased compared to controls, regardless of the patient’s age and the phase of disease treatment; (2) AL therapy and HCT significantly influence serum hepcidin levels; (3) serum hepcidin may predict a worse outcome in patients with AL and post-HCT. Conclusions: This systematic review provides an overview of observational studies that deal with the association of hepcidin with AL and HCT. Although disturbances in iron metabolism are common in AL and HCT, and hepcidin seems to play a cardinal role in their modulation, more extensive research is needed.
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Affiliation(s)
- Artur Słomka
- Department of Pathophysiology, Collegium Medicum Nicolaus Copernicus University Torun, 85-094 Bydgoszcz, Poland
| | - Monika Łęcka
- Department of Pediatric Hematology and Oncology, Jurasz University Hospital, Collegium Medicum Nicolaus Copernicus University Torun, 85-094 Bydgoszcz, Poland
| | - Jan Styczyński
- Department of Pediatric Hematology and Oncology, Jurasz University Hospital, Collegium Medicum Nicolaus Copernicus University Torun, 85-094 Bydgoszcz, Poland
- Correspondence:
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Prospective external validation of biomarkers to predict acute graft-versus host disease severity. Blood Adv 2022; 6:4763-4772. [PMID: 35667096 PMCID: PMC9631673 DOI: 10.1182/bloodadvances.2022007477] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 05/26/2022] [Indexed: 11/20/2022] Open
Abstract
Biomarker panels at GVHD onset, independently from clinical parameters, were associated with survival and nonrelapse mortality. Using 3 different biostatistical tools, biomarkers only slightly improved prediction over clinical parameters.
Acute graft-versus-host disease (GVHD) is still the major contributor to comorbidities and mortality after allogeneic hematopoietic stem cell transplantation. The use of plasmatic biomarkers to predict early outcomes has been advocated in the past decade. The purpose of this prospective noninterventional study was to test the ability of panels including 7 biomarkers (Elafin, HGF, IL2RA, IL8, REG3, ST2, and TNFRI), to predict day 28 (D28) complete response to steroid, D180 overall survival, and D180 nonrelapse mortality (NRM). Using previous algorithms developed by the Ann Arbor/MAGIC consortium, 204 patients with acute GVHD were prospectively included and biomarkers were measured at GVHD onset for all of them. Initial GVHD grade and bilirubin level were significantly associated with all those outcomes. After adjustment on clinical variables, biomarkers were associated with survival and NRM. In addition to clinical variables, biomarkers slightly improved the prediction of overall survival and NRM (concordance and net reclassification indexes). The potential benefit of adding biomarkers panel to clinical parameters was also investigated by decision curve analyses. The benefit of adding biomarkers to clinical parameters was however marginal for the D28 nonresponse and mortality endpoints.
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Souza MM, Coutinho-Camillo CM, de Paula FM, de Paula F, Bologna SB, Lourenço SV. Relevant proteins for the monitoring of engraftment phases after allogeneic hematopoietic stem cell transplantation. Clinics (Sao Paulo) 2022; 77:100134. [PMID: 36403426 PMCID: PMC9678684 DOI: 10.1016/j.clinsp.2022.100134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 10/10/2022] [Indexed: 11/18/2022] Open
Abstract
INTRODUCTION Hematopoietic Stem Cell Transplant (HSCT) has been successfully used as standard therapy for hematological disorders. After conditioning therapy, patients undergoing allogeneic HSCT, present three different phases of engraftment: early pre-engraftment, early post-engraftment, and late engraftment. Severe complications are associated with morbidity, mortality, and malignancies in these phases, which include effects on the oral cavity. OBJECTIVES The changes in the salivary composition after HSCT may contribute to identifying relevant proteins that could map differences among the phases of diseases, driven for personalized diagnostics and therapy. METHODS Unstimulated whole saliva was collected from patients submitted to HSCT. The samples were submitted to trypsin digestion for a Mass spectrometry analysis. MaxQuant processed the Data analysis, and the relevant expressed proteins were subjected to pathway and network analyses. RESULTS Differences were observed in the most identified proteins, specifically in proteins involved with the regulation of body fluid levels and the mucosal immune response. The heatmap showed a list of proteins exclusively expressed during the different phases of HSCT: HBB, KNG1, HSPA, FGB, APOA1, PFN1, PRTN3, TMSB4X, YWHAZ, CAP1, ACTN1, CLU and ALDOA. Bioinformatics analysis implicated pathways involved in protein processing in the endoplasmic reticulum, complement and coagulation cascades, apoptosis signaling, and cholesterol metabolism. CONCLUSION The compositional changes in saliva reflected the three phases of HSCT and demonstrated the usefulness of proteomics and computational approaches as a revolutionary field in diagnostic methods.
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Affiliation(s)
- Milena Monteiro Souza
- Department of Dermatology, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil; Department of General Pathology, Faculdade de Odontologia da Universidade de São Paulo, São Paulo, SP, Brazil; International Research Center, A.C. Camargo Cancer Center, São Paulo, SP, Brazil
| | | | - Fabiana Martins de Paula
- Medical Research Laboratory, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Fernanda de Paula
- Department of General Pathology, Faculdade de Odontologia da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Sheyla Batista Bologna
- Department of General Pathology, Faculdade de Odontologia da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Silvia Vanessa Lourenço
- Department of General Pathology, Faculdade de Odontologia da Universidade de São Paulo, São Paulo, SP, Brazil; Medical Research Laboratory, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
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Isenberg J, Golizeh M, Belfort RN, da Silva AJ, Burnier MN, Ndao M. Peptidyl-prolyl cis-trans isomerase A - A novel biomarker of multi-episodic (recurrent) ocular toxoplasmosis. Exp Eye Res 2018; 177:104-111. [PMID: 30063883 DOI: 10.1016/j.exer.2018.07.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 07/11/2018] [Accepted: 07/27/2018] [Indexed: 01/19/2023]
Abstract
Ocular toxoplasmosis (OT) is the most common etiology of posterior uveitis. The high incidence of macular scarring associated with OT is a leading cause of visual morbidity. Serum biomarkers of the disease would aid in its diagnosis. This study sought, for the first time, to elucidate serum biomarkers for OT by mass spectrometry. Blood samples were collected from four groups of nine patients each; toxoplasmosis IgG-with no history of uveitis, non-toxoplasmosis uveitis, first episode OT, and symptomatic recurrent OT. Serum was isolated and subjected to proteomics analysis using 2-dimensional gel electrophoresis (2D-GE) and surface-enhanced laser desorption ionization mass spectrometry (SELDI-MS). Selected proteins were further separated by SDS-PAGE and sequenced using tandem MS. Results were cross-validated with a T. gondii outbreak biomarker database that occurred in Brazil. Fifty markers of OT and 46 markers of recurrent disease were discovered by SELDI-MS of which 30 and 15, respectively, were cross-validated. 2D-GE analysis yielded 57 bands, selected based on the intensity of the bands, leading to the identification of 20 proteins. Eleven of those identified candidates were also found by SELDI-MS. Four candidates were chosen for immunoblotting. One serum protein, peptidyl-prolyl cis-trans isomerase A (PPIA), was confirmed as a biomarker of multi-episodic OT by immunoblotting in patients. PPIA can identify the patient with active recurrent OT from acute OT, other forms of uveitis and other parasitic infections. A validated PPIA assay may have a role in the diagnosis of the atypical OT patient before more invasive anterior chamber or vitreous tap is performed for PCR analysis or for Goldmann-Witner coefficient calculations. Base-line PPIA levels need to be studied to understand its possible use when deciding for prophylactic antibiotic use in the immunosuppressed sero-positive patient.
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Affiliation(s)
- Jordan Isenberg
- The Henry C. Witleson Ocular Pathology Laboratory, McGill University, Montréal, Québec, Canada; Department of Ophthalmology, University of Montreal, Montréal, Québec, Canada; Infectious Diseases and Immunity in Global Health Program, Research Institute of the McGill University Health Centre, Montréal, Québec, Canada
| | - Makan Golizeh
- Infectious Diseases and Immunity in Global Health Program, Research Institute of the McGill University Health Centre, Montréal, Québec, Canada; National Reference Centre for Parasitology, Research Institute of the McGill University Health Centre, Montréal, Québec, Canada
| | - Rubens N Belfort
- The Henry C. Witleson Ocular Pathology Laboratory, McGill University, Montréal, Québec, Canada; Vision Institute, Department of Ophthalmology, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Alexandre J da Silva
- Center for Food Safety and Applied Nutrition, Office of Applied Research and Safety Assessment, U.S. Food and Drug Administration, Laurel, MD, USA
| | - Miguel N Burnier
- The Henry C. Witleson Ocular Pathology Laboratory, McGill University, Montréal, Québec, Canada; Vision Institute, Department of Ophthalmology, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Momar Ndao
- Infectious Diseases and Immunity in Global Health Program, Research Institute of the McGill University Health Centre, Montréal, Québec, Canada; National Reference Centre for Parasitology, Research Institute of the McGill University Health Centre, Montréal, Québec, Canada.
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Kočová Vlčková H, Pilařová V, Svobodová P, Plíšek J, Švec F, Nováková L. Current state of bioanalytical chromatography in clinical analysis. Analyst 2018; 143:1305-1325. [DOI: 10.1039/c7an01807j] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Chromatographic methods have become popular in clinical analysis in both routine and research laboratories.
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Affiliation(s)
- H. Kočová Vlčková
- Deparment of Analytical Chemistry
- Faculty of Pharmacy in Hradec Králové
- Charles University
- Hradec Králové
- Czech Republic
| | - V. Pilařová
- Deparment of Analytical Chemistry
- Faculty of Pharmacy in Hradec Králové
- Charles University
- Hradec Králové
- Czech Republic
| | - P. Svobodová
- Deparment of Analytical Chemistry
- Faculty of Pharmacy in Hradec Králové
- Charles University
- Hradec Králové
- Czech Republic
| | - J. Plíšek
- Deparment of Analytical Chemistry
- Faculty of Pharmacy in Hradec Králové
- Charles University
- Hradec Králové
- Czech Republic
| | - F. Švec
- Deparment of Analytical Chemistry
- Faculty of Pharmacy in Hradec Králové
- Charles University
- Hradec Králové
- Czech Republic
| | - L. Nováková
- Deparment of Analytical Chemistry
- Faculty of Pharmacy in Hradec Králové
- Charles University
- Hradec Králové
- Czech Republic
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Ronald JA, Kim BS, Gowrishankar G, Namavari M, Alam IS, D'Souza A, Nishikii H, Chuang HY, Ilovich O, Lin CF, Reeves R, Shuhendler A, Hoehne A, Chan CT, Baker J, Yaghoubi SS, VanBrocklin HF, Hawkins R, Franc BL, Jivan S, Slater JB, Verdin EF, Gao KT, Benjamin J, Negrin R, Gambhir SS. A PET Imaging Strategy to Visualize Activated T Cells in Acute Graft-versus-Host Disease Elicited by Allogenic Hematopoietic Cell Transplant. Cancer Res 2017; 77:2893-2902. [PMID: 28572504 DOI: 10.1158/0008-5472.can-16-2953] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 12/07/2016] [Accepted: 03/31/2017] [Indexed: 11/16/2022]
Abstract
A major barrier to successful use of allogeneic hematopoietic cell transplantation is acute graft-versus-host disease (aGVHD), a devastating condition that arises when donor T cells attack host tissues. With current technologies, aGVHD diagnosis is typically made after end-organ injury and often requires invasive tests and tissue biopsies. This affects patient prognosis as treatments are dramatically less effective at late disease stages. Here, we show that a novel PET radiotracer, 2'-deoxy-2'-[18F]fluoro-9-β-D-arabinofuranosylguanine ([18F]F-AraG), targeted toward two salvage kinase pathways preferentially accumulates in activated primary T cells. [18F]F-AraG PET imaging of a murine aGVHD model enabled visualization of secondary lymphoid organs harboring activated donor T cells prior to clinical symptoms. Tracer biodistribution in healthy humans showed favorable kinetics. This new PET strategy has great potential for early aGVHD diagnosis, enabling timely treatments and improved patient outcomes. [18F]F-AraG may be useful for imaging activated T cells in various biomedical applications. Cancer Res; 77(11); 2893-902. ©2017 AACR.
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Affiliation(s)
- John A Ronald
- Molecular Imaging Program at Stanford, Stanford University, Stanford, California.,Department of Radiology, Stanford University School of Medicine, Stanford, California.,Robarts Research Institute, Department of Medical Biophysics, The University of Western Ontario, London, Ontario, Canada.,Lawson Health Research Institute, London, Ontario, Canada
| | - Byung-Su Kim
- Division of Blood and Marrow Transplantation, Department of Medicine, Stanford University, Stanford, California
| | - Gayatri Gowrishankar
- Molecular Imaging Program at Stanford, Stanford University, Stanford, California.,Department of Radiology, Stanford University School of Medicine, Stanford, California
| | - Mohammad Namavari
- Molecular Imaging Program at Stanford, Stanford University, Stanford, California.,Department of Radiology, Stanford University School of Medicine, Stanford, California
| | - Israt S Alam
- Molecular Imaging Program at Stanford, Stanford University, Stanford, California.,Department of Radiology, Stanford University School of Medicine, Stanford, California
| | - Aloma D'Souza
- Molecular Imaging Program at Stanford, Stanford University, Stanford, California.,Department of Radiology, Stanford University School of Medicine, Stanford, California
| | - Hidekazu Nishikii
- Division of Blood and Marrow Transplantation, Department of Medicine, Stanford University, Stanford, California
| | - Hui-Yen Chuang
- Molecular Imaging Program at Stanford, Stanford University, Stanford, California.,Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei, Taiwan
| | - Ohad Ilovich
- Molecular Imaging Program at Stanford, Stanford University, Stanford, California.,Department of Radiology, Stanford University School of Medicine, Stanford, California
| | - Chih-Feng Lin
- Molecular Imaging Program at Stanford, Stanford University, Stanford, California.,Department of Otolaryngology Head and Neck Surgery, National Taiwan University Hospital, Taipei, Taiwan.,Graduate Institute of Pathology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Robert Reeves
- Molecular Imaging Program at Stanford, Stanford University, Stanford, California.,Department of Radiology, Stanford University School of Medicine, Stanford, California
| | - Adam Shuhendler
- Molecular Imaging Program at Stanford, Stanford University, Stanford, California.,Department of Radiology, Stanford University School of Medicine, Stanford, California
| | - Aileen Hoehne
- Molecular Imaging Program at Stanford, Stanford University, Stanford, California.,Department of Radiology, Stanford University School of Medicine, Stanford, California
| | - Carmel T Chan
- Molecular Imaging Program at Stanford, Stanford University, Stanford, California.,Department of Radiology, Stanford University School of Medicine, Stanford, California
| | - Jeanette Baker
- Division of Blood and Marrow Transplantation, Department of Medicine, Stanford University, Stanford, California
| | | | - Henry F VanBrocklin
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California
| | - Randall Hawkins
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California
| | - Benjamin L Franc
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California
| | - Salma Jivan
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California
| | - James B Slater
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California
| | - Emily F Verdin
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California
| | - Kenneth T Gao
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California
| | - Jonathan Benjamin
- Division of Blood and Marrow Transplantation, Department of Medicine, Stanford University, Stanford, California
| | - Robert Negrin
- Division of Blood and Marrow Transplantation, Department of Medicine, Stanford University, Stanford, California
| | - Sanjiv Sam Gambhir
- Molecular Imaging Program at Stanford, Stanford University, Stanford, California. .,Department of Radiology, Stanford University School of Medicine, Stanford, California
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7
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Identification and Validation of SAA4 as a Rheumatoid Arthritis Prescreening Marker by Liquid Chromatography Tandem-mass Spectrometry. Molecules 2017; 22:molecules22050805. [PMID: 28505104 PMCID: PMC6154608 DOI: 10.3390/molecules22050805] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Revised: 05/08/2017] [Accepted: 05/11/2017] [Indexed: 01/24/2023] Open
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease that progresses into systemic inflammation and joint deformity. RA diagnosis is a complicated procedure, and early diagnostic methods are insufficient. Therefore, in this study, we attempted to identify new markers to improve the accuracy of RA prescreening. e identified differentially expressed proteins (DEPs) by using liquid chromatography tandem-mass spectrometry in health-prescreening sera with high rheumatoid factor (RF) values, and compared the findings with those from sera with normal RF values. We identified 93 DEPs; of these, 36 were upregulated, and 57 were downregulated in high-RF sera. Pathway analysis revealed that these DEPs were related to immune responses. Additionally, four DEPs were statistically analyzed by proteomic analysis; of these, SAA4 was significantly validated in individual enzyme-linked immunosorbent assays. Moreover, SAA4 was significantly upregulated in RA patients (n = 40, 66.43 ± 12.97 ng/mL) compared with normal controls (n = 40, 4.79 ± 0.95 ng/mL) and had a higher area under the curve than C-reactive protein. Thus, we identified SAA4 as a protein that was positively correlated with RF and RA. SAA4 may represent a novel prescreening marker for the diagnosis of RA.
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Song D, Yue L, Zhang J, Ma S, Zhao W, Guo F, Fan Y, Yang H, Liu Q, Zhang D, Xia Z, Qin P, Jia J, Yue M, Yu J, Zheng S, Yang F, Wang J. Diagnostic and prognostic significance of serum apolipoprotein C-I in triple-negative breast cancer based on mass spectrometry. Cancer Biol Ther 2016; 17:635-47. [PMID: 27260686 DOI: 10.1080/15384047.2016.1156262] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Women with triple-negative breast cancer (TNBC) have poor prognosis because of the aggressive nature of the tumor, delayed diagnosis and non-specific symptoms in the early stages. Identification of novel specific TNBC serum biomarkers for screening and therapeutic purposes therefore remains an urgent clinical requirement.We obtained serum samples from a total of 380 recruited individuals split into mining and testing sets, with the aim of screening for reliable protein biomarkers from TNBC and non-TNBC (NTNBC) sera. Samples were assessed using mass spectrometry, followed by receiver operating characteristic (ROC), survival and hazard function curve as well as multivariate Cox regression analyses to ascertain the potential of the protein constituents as diagnostic and prognostic biomarkers for TNBC.We identified upregulated apolipoprotein C-I (apoC-I) with a validated positive effect on TNBC tumorigenesis, with confirmation in an independent test set and minimization of systematic bias by pre-analytical parameters. The apoC-I protein had superior diagnostic ability in distinguishing between TNBC and NTNBC cases. Moreover, the protein presented a more robust potential prognostic factor for TNBC than NTNBC. The apoC-I protein identified in this study presents an effective novel diagnostic and prognostic biomarker for TNBC, indicating that measurement of the peak intensity at 7785 Da in serum samples could facilitate improved early detection and estimation of postoperative survival prognosis for TNBC.
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Affiliation(s)
- Dongjian Song
- a Department of Pediatric Surgery , First Affiliated Hospital, Zhengzhou University , Zhengzhou , PR China.,b Institute of Clinical Medicine, First Affiliated Hospital, Zhengzhou University , Zhengzhou , PR China
| | - Lifang Yue
- c Department of Ultrasonography , Third Affiliated Hospital, Zhengzhou University , Zhengzhou , PR China
| | - Junjie Zhang
- a Department of Pediatric Surgery , First Affiliated Hospital, Zhengzhou University , Zhengzhou , PR China
| | - Shanshan Ma
- d School of Life Science , Zhengzhou University , Zhengzhou , PR China
| | - Wei Zhao
- a Department of Pediatric Surgery , First Affiliated Hospital, Zhengzhou University , Zhengzhou , PR China
| | - Fei Guo
- a Department of Pediatric Surgery , First Affiliated Hospital, Zhengzhou University , Zhengzhou , PR China
| | - Yingzhong Fan
- a Department of Pediatric Surgery , First Affiliated Hospital, Zhengzhou University , Zhengzhou , PR China
| | - Heying Yang
- a Department of Pediatric Surgery , First Affiliated Hospital, Zhengzhou University , Zhengzhou , PR China
| | - Qiuliang Liu
- a Department of Pediatric Surgery , First Affiliated Hospital, Zhengzhou University , Zhengzhou , PR China
| | - Da Zhang
- a Department of Pediatric Surgery , First Affiliated Hospital, Zhengzhou University , Zhengzhou , PR China
| | - Ziqiang Xia
- a Department of Pediatric Surgery , First Affiliated Hospital, Zhengzhou University , Zhengzhou , PR China
| | - Pan Qin
- a Department of Pediatric Surgery , First Affiliated Hospital, Zhengzhou University , Zhengzhou , PR China
| | - Jia Jia
- a Department of Pediatric Surgery , First Affiliated Hospital, Zhengzhou University , Zhengzhou , PR China
| | - Ming Yue
- a Department of Pediatric Surgery , First Affiliated Hospital, Zhengzhou University , Zhengzhou , PR China
| | - Jiekai Yu
- e Institute of Cancer, Second Affiliated Hospital, Zhejiang University , Hangzhou , PR China
| | - Shu Zheng
- e Institute of Cancer, Second Affiliated Hospital, Zhejiang University , Hangzhou , PR China
| | - Fuquan Yang
- f Proteomic Platform , Institute of Biophysics, Chinese Academy of Sciences , Beijing , PR China
| | - Jiaxiang Wang
- a Department of Pediatric Surgery , First Affiliated Hospital, Zhengzhou University , Zhengzhou , PR China
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Serum apolipoprotein A-1 quantification by LC-MS with a SILAC internal standard reveals reduced levels in smokers. Bioanalysis 2015; 7:2895-911. [PMID: 26394123 PMCID: PMC4737526 DOI: 10.4155/bio.15.195] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Background: Absolute quantification of protein biomarkers such as serum apolipoprotein A1 by both immunoassays and LC–MS can provide misleading results. Results: Recombinant ApoA-1 internal standard was prepared using stable isotope labeling by amino acids in cell culture with [13C615N2]-lysine and [13C915N1]-tyrosine in human cells. A stable isotope dilution LC–MS method for serum ApoA-1 was validated and levels analyzed for 50 nonsmokers and 50 smokers. Conclusion: The concentration of ApoA-1 in nonsmokers was 169.4 mg/dl with an 18.4% reduction to 138.2 mg/dl in smokers. The validated assay will have clinical utility for assessing effects of smoking cessation and therapeutic or dietary interventions in high-risk populations.
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