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Cheng L, Xu J, Yuan H, Zhao Q, Yue W, Ma S, Lu W. An aptamer and Au/Si CCA based SERS sensor for ultra-sensitive detection of Vimentin during EMT in gastric cancer. Front Bioeng Biotechnol 2023; 11:1310258. [PMID: 38130825 PMCID: PMC10733448 DOI: 10.3389/fbioe.2023.1310258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 11/23/2023] [Indexed: 12/23/2023] Open
Abstract
Introduction: In this study, a surface-enhanced Raman scattering (SERS) sensor based on a functionalized Au/Si cap-cone array (Au/Si CCA) was constructed using the identity-release strategy to detect Vimentin changes during epithelial-mesenchymal transition (EMT) in gastric cancer (GC). Methods: The periodic structure of Au/Si CCA, which can form "hot spots" with high density and regular arrangement, is a substrate with excellent performance. Au/Si CCA was functionalized with aptamers as the capture substrate, and Au nanocubes (AuNCs) were modified with 5-carboxyfluorescein (5-FAM) labelled complementary strand as SERS probe. The capture substrate and SERS probe were assembled by hybridization, and the SERS signal intensity of 5-FAM was greatly enhanced. The binding of Vimentin to the aptamer resulted in a broken connection between the SERS sensor Au/Si CCA array and AuNCs, which resulted in a decrease in the signal intensity of 5-FAM. The identity-release strategy requires only a simple step of reaction to achieve rapid detection of target proteins, which has clinical practicability. Results: Using this protocol, the concentration of Vimentin in GES-1 cells could be successfully detected, and the detection limit was as low as 4.92 pg/mL. Biological experiments of Vincristine, Oncovin (VCR)-treated GES-1 cells effectively mimicked the EMT process, and Vimentin changes during EMT could be accurately detected by this method. Discussion: This study provides a selective, ultra-sensitive and accurate assay for Vimentin detection, which may provide a means for the future detection of EMT process in GC.
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Affiliation(s)
- Lingling Cheng
- Department of Oncology, Yancheng TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Yancheng, Jiangsu, China
| | - Jianlin Xu
- Department of Oncology, Yancheng TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Yancheng, Jiangsu, China
| | - Hua Yuan
- Pharmacy Department, Yancheng TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Yancheng, Jiangsu, China
| | - Qihao Zhao
- Department of Laboratory Medicine, Yancheng TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Yancheng, Jiangsu, China
| | - Wei Yue
- Department of Oncology, Yancheng TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Yancheng, Jiangsu, China
| | - Shuang Ma
- Department of Oncology, Yancheng TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Yancheng, Jiangsu, China
| | - Weimin Lu
- General Internal Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, Jiangsu, China
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2
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Battle R, Pritchard D, Peacock S, Hastie C, Worthington J, Jordan S, McCaughlan JA, Barnardo M, Cope R, Collins C, Diaz-Burlinson N, Rosser C, Foster L, Kallon D, Shaw O, Briggs D, Turner D, Anand A, Akbarzad-Yousefi A, Sage D. BSHI and BTS UK guideline on the detection of alloantibodies in solid organ (and islet) transplantation. Int J Immunogenet 2023; 50 Suppl 2:3-63. [PMID: 37919251 DOI: 10.1111/iji.12641] [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: 10/02/2023] [Accepted: 10/04/2023] [Indexed: 11/04/2023]
Abstract
Solid organ transplantation represents the best (and in many cases only) treatment option for patients with end-stage organ failure. The effectiveness and functioning life of these transplants has improved each decade due to surgical and clinical advances, and accurate histocompatibility assessment. Patient exposure to alloantigen from another individual is a common occurrence and takes place through pregnancies, blood transfusions or previous transplantation. Such exposure to alloantigen's can lead to the formation of circulating alloreactive antibodies which can be deleterious to solid organ transplant outcome. The purpose of these guidelines is to update to the previous BSHI/BTS guidelines 2016 on the relevance, assessment, and management of alloantibodies within solid organ transplantation.
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Affiliation(s)
- Richard Battle
- Scottish National Blood Transfusion Service, Edinburgh, UK
| | | | - Sarah Peacock
- Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | | | | | - Sue Jordan
- National Blood Service Tooting, London, UK
| | | | - Martin Barnardo
- Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Rebecca Cope
- Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | | | | | | | - Luke Foster
- Birmingham Blood Donor Centre, Birmingham, UK
| | | | - Olivia Shaw
- Guy's and St Thomas' NHS Foundation Trust, London, UK
| | | | - David Turner
- Scottish National Blood Transfusion Service, Edinburgh, UK
| | - Arthi Anand
- Imperial College Healthcare NHS Trust, London, UK
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Auger C, Moudgalya H, Neely MR, Stephan JT, Tarhoni I, Gerard D, Basu S, Fhied CL, Abdelkader A, Vargas M, Hu S, Hulett T, Liptay MJ, Shah P, Seder CW, Borgia JA. Development of a Novel Circulating Autoantibody Biomarker Panel for the Identification of Patients with 'Actionable' Pulmonary Nodules. Cancers (Basel) 2023; 15:2259. [PMID: 37190187 PMCID: PMC10136536 DOI: 10.3390/cancers15082259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 04/05/2023] [Accepted: 04/06/2023] [Indexed: 05/17/2023] Open
Abstract
Due to poor compliance and uptake of LDCT screening among high-risk populations, lung cancer is often diagnosed in advanced stages where treatment is rarely curative. Based upon the American College of Radiology's Lung Imaging and Reporting Data System (Lung-RADS) 80-90% of patients screened will have clinically "non-actionable" nodules (Lung-RADS 1 or 2), and those harboring larger, clinically "actionable" nodules (Lung-RADS 3 or 4) have a significantly greater risk of lung cancer. The development of a companion diagnostic method capable of identifying patients likely to have a clinically actionable nodule identified during LDCT is anticipated to improve accessibility and uptake of the paradigm and improve early detection rates. Using protein microarrays, we identified 501 circulating targets with differential immunoreactivities against cohorts characterized as possessing either actionable (n = 42) or non-actionable (n = 20) solid pulmonary nodules, per Lung-RADS guidelines. Quantitative assays were assembled on the Luminex platform for the 26 most promising targets. These assays were used to measure serum autoantibody levels in 841 patients, consisting of benign (BN; n = 101), early-stage non-small cell lung cancer (NSCLC; n = 245), other early-stage malignancies within the lung (n = 29), and individuals meeting United States Preventative Screening Task Force (USPSTF) screening inclusion criteria with both actionable (n = 87) and non-actionable radiologic findings (n = 379). These 841 patients were randomly split into three cohorts: Training, Validation 1, and Validation 2. Of the 26 candidate biomarkers tested, 17 differentiated patients with actionable nodules from those with non-actionable nodules. A random forest model consisting of six autoantibody (Annexin 2, DCD, MID1IP1, PNMA1, TAF10, ZNF696) biomarkers was developed to optimize our classification performance; it possessed a positive predictive value (PPV) of 61.4%/61.0% and negative predictive value (NPV) of 95.7%/83.9% against Validation cohorts 1 and 2, respectively. This panel may improve patient selection methods for lung cancer screening, serving to greatly reduce the futile screening rate while also improving accessibility to the paradigm for underserved populations.
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Affiliation(s)
- Claire Auger
- Department of Anatomy & Cell Biology, Rush University Medical Center, Chicago, IL 60612, USA
| | - Hita Moudgalya
- Department of Anatomy & Cell Biology, Rush University Medical Center, Chicago, IL 60612, USA
| | - Matthew R. Neely
- Department of Anatomy & Cell Biology, Rush University Medical Center, Chicago, IL 60612, USA
| | - Jeremy T. Stephan
- Rush University Medical College, Rush University Medical Center, Chicago, IL 60612, USA
| | - Imad Tarhoni
- Department of Anatomy & Cell Biology, Rush University Medical Center, Chicago, IL 60612, USA
| | - David Gerard
- Department of Anatomy & Cell Biology, Rush University Medical Center, Chicago, IL 60612, USA
| | - Sanjib Basu
- Division of Medical Oncology, Rush University Medical Center, Chicago, IL 60612, USA
| | - Cristina L. Fhied
- Department of Anatomy & Cell Biology, Rush University Medical Center, Chicago, IL 60612, USA
| | - Ahmed Abdelkader
- Department of Anatomy & Cell Biology, Rush University Medical Center, Chicago, IL 60612, USA
| | | | - Shaohui Hu
- CDI Laboratories, Mayagüez, PR 00680, USA
| | | | - Michael J. Liptay
- Department of Cardiovascular and Thoracic Surgery, Rush University Medical Center, Chicago, IL 60612, USA
| | - Palmi Shah
- Department of Diagnostic Radiology, Rush University Medical Center, Chicago, IL 60612, USA
| | - Christopher W. Seder
- Department of Cardiovascular and Thoracic Surgery, Rush University Medical Center, Chicago, IL 60612, USA
| | - Jeffrey A. Borgia
- Department of Anatomy & Cell Biology, Rush University Medical Center, Chicago, IL 60612, USA
- Department of Pathology, Rush University Medical Center, Chicago, IL 60612, USA
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4
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Chen Q, Kao X, Gao Y, Chen J, Dong Z, Chen C. Nitric oxide-caused rabbit chondrocyte apoptosis is linked to cytoskeletal protein proteolysis anomaly through intracellular JNK and ERK signal pathways. Mol Cell Toxicol 2023; 19:71-79. [DOI: https:/doi.org/10.1007/s13273-022-00241-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/11/2022] [Indexed: 02/14/2024]
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5
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Ash MK, Bhimalli PP, Cho BK, Mattamana BB, Gambut S, Tarhoni I, Fhied CL, Reyes AF, Welninski SJ, Arivalagan J, Negrão F, Goel R, Beck TL, Hope TJ, Sha BE, Goo YA, Al-Harthi L, Mamede JI, Borgia JA, Kelleher NL, Schneider JR. Bulk IgG glycosylation predicts COVID-19 severity and vaccine antibody response. Cell Rep 2022; 41:111799. [PMID: 36493786 PMCID: PMC9678812 DOI: 10.1016/j.celrep.2022.111799] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 10/13/2022] [Accepted: 11/16/2022] [Indexed: 11/23/2022] Open
Abstract
Although vaccination efforts have expanded, there are still gaps in our understanding surrounding the immune response to SARS-CoV-2. Measuring IgG Fc glycosylation provides insight into an infected individual's inflammatory state, among other functions. We set out to interrogate bulk IgG glycosylation changes from SARS-CoV-2 infection and vaccination, using plasma from mild or hospitalized COVID-19 patients, and from vaccinated individuals. Inflammatory glycans are elevated in hospitalized COVID-19 patients and increase over time, while mild patients have anti-inflammatory glycans that increase over time, including increased sialic acid correlating with RBD antibody levels. Vaccinated individuals with low RBD antibody levels and low neutralization have the same IgG glycan traits as hospitalized COVID-19 patients. In addition, a small vaccinated cohort reveals a decrease in inflammatory glycans associated with peak IgG concentrations and neutralization. This report characterizes the bulk IgG glycome associated with COVID-19 severity and vaccine responsiveness and can help guide future studies into SARS-CoV-2 protective immunity.
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Affiliation(s)
- Michelle K. Ash
- Department of Microbial Pathogens & Immunity, Rush University Medical Center, Cohn Research Building, 1735 W. Harrison St., Chicago, IL 60612, USA
| | - Pavan P. Bhimalli
- Department of Microbial Pathogens & Immunity, Rush University Medical Center, Cohn Research Building, 1735 W. Harrison St., Chicago, IL 60612, USA
| | - Byoung-Kyu Cho
- Proteomics Center of Excellence, Northwestern University, Evanston, IL, USA
| | | | - Stéphanie Gambut
- Department of Microbial Pathogens & Immunity, Rush University Medical Center, Cohn Research Building, 1735 W. Harrison St., Chicago, IL 60612, USA
| | - Imad Tarhoni
- Department of Anatomy & Cell Biology, Rush University Medical Center, Chicago, IL, USA
| | - Cristina L. Fhied
- Department of Anatomy & Cell Biology, Rush University Medical Center, Chicago, IL, USA
| | - Anjelica F. Reyes
- Department of Microbial Pathogens & Immunity, Rush University Medical Center, Cohn Research Building, 1735 W. Harrison St., Chicago, IL 60612, USA
| | - Samantha J. Welninski
- Department of Microbial Pathogens & Immunity, Rush University Medical Center, Cohn Research Building, 1735 W. Harrison St., Chicago, IL 60612, USA
| | - Jaison Arivalagan
- Proteomics Center of Excellence, Northwestern University, Evanston, IL, USA
| | - Fernanda Negrão
- Proteomics Center of Excellence, Northwestern University, Evanston, IL, USA
| | - Renu Goel
- Proteomics Center of Excellence, Northwestern University, Evanston, IL, USA,Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Todd L. Beck
- Statistics Core, Rush University Medical Center, Chicago, IL, USA
| | - Thomas J. Hope
- Department of Biomedical Engineering, Northwestern University, Chicago, IL, USA,Department of Cell & Developmental Biology, Northwestern University, Chicago, IL, USA,Department of Obstetrics & Gynecology, Northwestern University, Chicago, IL, USA,Feinberg School of Medicine, Northwestern University, Chicago, IL, USA,Chemistry of Life Processes Institute, Northwestern University, Chicago, IL, USA
| | - Beverly E. Sha
- Division of Infectious Diseases, Rush University Medical Center, Chicago, IL, USA
| | - Young Ah Goo
- Proteomics Center of Excellence, Northwestern University, Evanston, IL, USA
| | - Lena Al-Harthi
- Department of Microbial Pathogens & Immunity, Rush University Medical Center, Cohn Research Building, 1735 W. Harrison St., Chicago, IL 60612, USA
| | - João I. Mamede
- Department of Microbial Pathogens & Immunity, Rush University Medical Center, Cohn Research Building, 1735 W. Harrison St., Chicago, IL 60612, USA
| | - Jeffrey A. Borgia
- Department of Anatomy & Cell Biology, Rush University Medical Center, Chicago, IL, USA,Department of Pathology, Rush University Medical Center, Chicago, IL, USA
| | - Neil L. Kelleher
- Proteomics Center of Excellence, Northwestern University, Evanston, IL, USA,Department of Chemistry, Northwestern University, Chicago, IL, USA,Department of Molecular Biosciences, Northwestern University, Chicago, IL, USA,Feinberg School of Medicine, Northwestern University, Chicago, IL, USA,Chemistry of Life Processes Institute, Northwestern University, Chicago, IL, USA
| | - Jeffrey R. Schneider
- Department of Microbial Pathogens & Immunity, Rush University Medical Center, Cohn Research Building, 1735 W. Harrison St., Chicago, IL 60612, USA,Corresponding author
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6
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Nitric oxide-caused rabbit chondrocyte apoptosis is linked to cytoskeletal protein proteolysis anomaly through intracellular JNK and ERK signal pathways. Mol Cell Toxicol 2022. [DOI: 10.1007/s13273-022-00241-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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7
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Fichtner A, Süsal C, Höcker B, Rieger S, Waldherr R, Westhoff JH, Sander A, Dragun D, Tönshoff B. Association of non-HLA antibodies against endothelial targets and donor-specific HLA antibodies with antibody-mediated rejection and graft function in pediatric kidney transplant recipients. Pediatr Nephrol 2021; 36:2473-2484. [PMID: 33759004 PMCID: PMC8260519 DOI: 10.1007/s00467-021-04969-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 12/15/2020] [Accepted: 01/25/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND Non-HLA antibodies against endothelial targets have been implicated in the pathogenesis of antibody-mediated rejection (ABMR), but data in pediatric patients are scarce. METHODS We retrospectively analyzed a carefully phenotyped single-center (University Children's Hospital Heidelberg, Germany) cohort of 62 pediatric kidney transplant recipients (mean age at transplantation, 8.6 ± 5.0 years) at increased risk of graft function deterioration. Patients had received their transplant between January 1, 1999, and January 31, 2010. We examined at time of late index biopsies (more than 1-year post-transplant, occurring after January 2004) the association of antibodies against the angiotensin II type 1 receptor (AT1R), the endothelin type A receptor (ETAR), the MHC class I chain-like gene A (MICA), and vimentin in conjunction with overall and complement-binding donor-specific HLA antibodies (HLA-DSA) with graft histology and function. RESULTS We observed a high prevalence (62.9%) of non-HLA antibody positivity. Seventy-two percent of HLA-DSA positive patients showed additional positivity for at least one non-HLA antibody. Antibodies against AT1R, ETAR, and MICA were associated with the histological phenotype of ABMR. The cumulative load of HLA-DSA and non-HLA antibodies in circulation was related to the degree of microinflammation in peritubular capillaries. Non-HLA antibody positivity was an independent non-invasive risk factor for graft function deterioration (adjusted hazard ratio 6.38, 95% CI, 2.11-19.3). CONCLUSIONS Our data indicate that the combined detection of antibodies to HLA and non-HLA targets may allow a more comprehensive assessment of the patients' immune responses against the kidney allograft and facilitates immunological risk stratification.
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Affiliation(s)
- Alexander Fichtner
- Department of Pediatrics I, University Children's Hospital Heidelberg, Im Neuenheimer Feld 430, D-69120, Heidelberg, Germany.
| | - Caner Süsal
- Transplantation Immunology, Institute of Immunology, University Hospital Heidelberg, Im Neuenheimer Feld 305, D-69120, Heidelberg, Germany
| | - Britta Höcker
- Department of Pediatrics I, University Children's Hospital Heidelberg, Im Neuenheimer Feld 430, D-69120, Heidelberg, Germany
| | - Susanne Rieger
- Department of Pediatrics I, University Children's Hospital Heidelberg, Im Neuenheimer Feld 430, D-69120, Heidelberg, Germany
| | - Rüdiger Waldherr
- Department of Pathology, University Hospital Heidelberg, Im Neuenheimer Feld 224, D-69120, Heidelberg, Germany
| | - Jens H Westhoff
- Department of Pediatrics I, University Children's Hospital Heidelberg, Im Neuenheimer Feld 430, D-69120, Heidelberg, Germany
| | - Anja Sander
- Institute of Medical Biometry and Informatics, University of Heidelberg, Im Neuenheimer Feld 305, D-69120, Heidelberg, Germany
| | - Duska Dragun
- Clinic for Nephrology and Critical Care Medicine, Charite-Universitatsmedizin Berlin, Corporate member of Freie Universitat Berlin, Humboldt-Universitat zu Berlin, Berlin, Germany.,Berlin Institute of Health, Berlin, Germany
| | - Burkhard Tönshoff
- Department of Pediatrics I, University Children's Hospital Heidelberg, Im Neuenheimer Feld 430, D-69120, Heidelberg, Germany
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8
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Tarhoni I, Wakefield CJ, Kollipara R, Fidler MJ, Batus M, Bonomi P, Borgia JA. Relationship between circulating tumor-associated autoantibodies and clinical outcomes in advanced-stage NSCLC patients receiving PD-1/-L1 directed immune checkpoint inhibition. J Immunol Methods 2021; 490:112956. [PMID: 33434603 DOI: 10.1016/j.jim.2021.112956] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 12/20/2020] [Accepted: 12/31/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND Durable tumor regressions are observed in a subset of advanced-stage non-small cell lung cancer (NSCLC) patients receiving PD-1/-L1 targeted immune checkpoint inhibitors (or 'immunotherapy') alone or in combination with chemotherapy. However, the majority of advanced NSCLC patients receiving these agents do not experience long-term disease control. Existing methods to identify patients most likely to gain clinical benefit from PD-1/-L1 immunotherapy have limitations, creating a need for improved methods to guide treatment selection, particularly for those likely to benefit from single-agent immunotherapy. Here, we describe the development of a series of novel assays for tumor-associated autoantibodies as part of an exploratory study intended to determine if these biomarkers have potential prognostic value in this setting. METHOD A selection of recombinant tumor autoantigens previously characterized for their diagnostic utility were developed and preliminarily evaluated by this study. These include: Fumarate Dehydrogenase (FH), Hydroxysteroid 17-Beta Dehydrogenase 10 (HSD17B10), Inosine Monophosphate Dehydrogenase 2 (IMPDH2), New York Esophageal Squamous Cell Carcinoma-1 (NY ESO-1), Phosphoglycerate Mutase 1 (PGAM1), and Vimentin. Custom Luminex immunobead assays were developed for these targets to quantitatively assess autoantibody levels in individual patient sera. Assays were erected as indirect immunoassays on MagPlex® Microspheres using standard carbodiimide/NHS-based chemistries, utilizing a biotin-conjugated secondary (i.e. anti-human IgG) antibody and R-phycoerythrin-conjugated streptavidin reporter system. Standard curves were created for quantitative purposes using commercially-available anti-antigen antibodies and permitted analytical performance characteristics to be calculated. These assays were used to preliminarily evaluate a series of pretreatment serum samples from stage IV NSCLC patients receiving anti PD-1/-L1 therapy after failure of at least one prior line of therapy (n = 40) and their classification efficiency calculated based on 12 months overall survival (OS) threshold. RESULTS Six assays were developed that each showed dynamic ranges of four orders of magnitude and provided more than 90% classification accuracy based on the observed clinical outcome data. Inter- and intra-assay precision was assessed within these standards and overall %CVs of ≤7% and ≤ 10%, respectively, were calculated. Generally, the baseline level of autoantibodies were significantly (p < 0.05) lower in the ≥12 months survival group relative to the <12 months survival groups. Serum titers of FH, HSD170B, NY-ESO-1, and vimentin were significantly correlated with ≥12 month survival (p-value 0.0038, 0.0061, 0.0073, and 0.022, respectively). IMPDH2 and PGAM1 were found to have marginal significance (p-value 0.08 and 0.076, respectively). CONCLUSION This study demonstrates an efficient and promising means for assessing circulating autoantibody titers that could be useful in selecting advanced NSCLC patients for PD-1/-L1 directed immunotherapy. Further exploration and validation of this paradigm is warranted to further refine current treatment selection methods for this therapeutic strategy.
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Affiliation(s)
- Imad Tarhoni
- Department of Cell and Molecular Medicine, Rush University Medical Center, Chicago, IL 606012, United States of America
| | - Connor J Wakefield
- Department of Cell and Molecular Medicine, Rush University Medical Center, Chicago, IL 606012, United States of America
| | - Revathi Kollipara
- Department of Medical Oncology, Rush University Medical Center, Chicago, IL 606012, United States of America
| | - Mary Jo Fidler
- Department of Medical Oncology, Rush University Medical Center, Chicago, IL 606012, United States of America
| | - Marta Batus
- Department of Medical Oncology, Rush University Medical Center, Chicago, IL 606012, United States of America
| | - Philip Bonomi
- Department of Medical Oncology, Rush University Medical Center, Chicago, IL 606012, United States of America
| | - Jeffrey A Borgia
- Department of Cell and Molecular Medicine, Rush University Medical Center, Chicago, IL 606012, United States of America; Department of Pathology, Rush University Medical Center, Chicago, IL 606012, United States of America.
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9
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Abstract
The role of anti-HLA antibodies in solid organ rejection is well established and these antibodies are routinely monitored both in patients in the waiting list and in the post-transplant setting. More recently, the presence of other antibodies directed towards non-HLA antigens, or the so-called minor histocompatibility antigens, has drawn the attention of the transplant community; however, their possible involvement in the graft outcome remains uncertain. These antibodies have been described to possibly have a role in rejection and allograft failure. This review focuses on the most studied non-HLA antibodies and their association with different clinical outcomes considered in solid organ transplantation with the aim of clarifying their clinical implication and potential relevance for routine testing.
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10
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Lopez-Soler RI, Borgia JA, Kanangat S, Fhied CL, Conti DJ, Constantino D, Ata A, Chan R, Wang Z. Anti-vimentin Antibodies Present at the Time of Transplantation May Predict Early Development of Interstitial Fibrosis/Tubular Atrophy. Transplant Proc 2017; 48:2023-33. [PMID: 27569939 DOI: 10.1016/j.transproceed.2016.04.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Accepted: 04/27/2016] [Indexed: 12/15/2022]
Abstract
BACKGROUND Anti-vimentin (a cytoskeletal protein) autoantibodies in renal transplant recipients have been correlated with interstitial fibrosis/tubular atrophy (IFTA). In this study, we examine the association between pretransplantation anti-vimentin antibodies and the subsequent development of IFTA. METHODS Sera obtained before renal transplantation from 97 transplant recipients were analyzed for the presence of anti-vimentin antibodies via Luminex assays to determine the concentration of anti-vimentin antibodies. Results were correlated with findings of IFTA on biopsy as well as graft function and patient and graft survival. RESULTS In our patient population, 56 of 97 patients were diagnosed by biopsy with IFTA 2.9 (±2.1) years after renal transplantation. Patients with IFTA on biopsy had higher mean concentration of anti-vimentin antibodies when compared to patients without IFTA (32.2 μg/mL [3.97-269.12 μg/mL] vs 14.57 μg/mL [4.71-87.81 μg/mL]). The risk of developing IFTA with a concentration of anti-vimentin antibody >15 μg/mL before transplantation was 1.96 (95% CI = 1.38-2.79, P = .011). Patients with elevated anti-vimentin antibody concentrations (>15 μg/mL) at the time of transplantation also had a higher risk of developing IFTA (81.4% vs 41.2%; P < .05). In addition, graft function was worse at 1, 3, and 5 years posttransplantation in patients with elevated concentrations of pretransplantation anti-vimentin antibody. Although there were more graft losses in the IFTA groups (49.12% vs 25.64%, P = .021) and the IFTA patients loss their grafts earlier (4.3 years vs 3.6 years), there was no statistical difference in graft loss rates. CONCLUSIONS Pretransplantation anti-vimentin antibody concentrations >15 μg/mL may be a risk factor for IFTA.
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Affiliation(s)
- R I Lopez-Soler
- Division of Surgery, Section of Transplantation, Albany Medical Center, Albany, New York.
| | - J A Borgia
- Department of Biochemistry, Rush University Medical Center, Chicago, Illinois; Department of Pathology, Rush University Medical Center, Chicago, Illinois
| | - S Kanangat
- Department of Pathology, Rush University Medical Center, Chicago, Illinois
| | - C L Fhied
- Department of Pathology, Rush University Medical Center, Chicago, Illinois
| | - D J Conti
- Division of Surgery, Section of Transplantation, Albany Medical Center, Albany, New York
| | - D Constantino
- Transplant Immunology Laboratory, Albany Medical College, Albany, New York
| | - A Ata
- Division of Surgery, Section of Transplantation, Albany Medical Center, Albany, New York
| | - R Chan
- Division of Surgery, Section of Transplantation, Albany Medical Center, Albany, New York
| | - Z Wang
- Center For Cardiovascular Sciences, Albany Medical College, Albany, New York
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11
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Gold nanoparticles induce apoptosis, endoplasmic reticulum stress events and cleavage of cytoskeletal proteins in human neutrophils. Toxicol In Vitro 2016; 31:12-22. [DOI: 10.1016/j.tiv.2015.11.003] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 09/09/2015] [Accepted: 11/06/2015] [Indexed: 11/17/2022]
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12
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Cantagrel A, Degboé Y. New autoantibodies associated with rheumatoid arthritis recognize posttranslationally modified self-proteins. Joint Bone Spine 2015; 83:11-7. [PMID: 26639222 DOI: 10.1016/j.jbspin.2015.10.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/06/2015] [Indexed: 10/22/2022]
Abstract
Citrullination, carbamylation and oxidation are posttranslational modifications of proteins that produce neoepitopes. Rheumatoid arthritis (RA) is an autoimmune disease of which one distinctive feature is the development of B-cell-mediated immunity against these neoepitopes. Antibodies to citrullinated proteins (ACPAs) were identified nearly two decades ago and are now widely used in clinical practice. The identification of additional citrullinated proteins as potential autoantibody targets has suggested new pathophysiological hypotheses and prompted studies of potential associations with disease severity or specific disease patterns. Carbamylation is a nonenzymatic posttranslational modification that produces homocitrullines, against which newly identified autoantibodies different from ACPAs have been found in over 15% of patients with RA. Finally, the development of antibodies to oxidized type II collagen reflects immunization against collagen modified by oxidation in relation to intraarticular oxidative stress. These new autoantibodies are both sensitive and specific and may therefore serve as early disease markers and as useful tools for therapeutic monitoring.
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Affiliation(s)
- Alain Cantagrel
- Centre de rhumatologie, hôpital Purpan, bâtiment Pierre-Paul-Riquet, place du Docteur-Baylac, 31059 Toulouse, France.
| | - Yannick Degboé
- Centre de rhumatologie, hôpital Purpan, bâtiment Pierre-Paul-Riquet, place du Docteur-Baylac, 31059 Toulouse, France
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Crespo-Leiro MG, Barge-Caballero E, Paniagua-Martin MJ, Barge-Caballero G, Suarez-Fuentetaja N. Update on Immune Monitoring in Heart Transplantation. CURRENT TRANSPLANTATION REPORTS 2015. [DOI: 10.1007/s40472-015-0081-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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