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Ohyama K. [Clinical Pharmaceutical Research Based on New Proteome Analysis Based on Chromatographic Separation]. YAKUGAKU ZASSHI 2019; 139:505-509. [PMID: 30930377 DOI: 10.1248/yakushi.18-00167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Comprehensive identification of antigens in immune complexes (IC-antigens) is beneficial to provide insights into pathophysiology and could form the basis for novel diagnostic and treatment strategies for many immune-related diseases. Immune complexome analysis is a method for comprehensively identifying and profiling IC-antigens in biological fluids (such as serum and cerebrospinal fluid). We applied this strategy to the analysis of circulating ICs in autoimmune diseases (rheumatoid arthritis, Sjögren's syndrome, systemic scleroderma, and systemic lupus erythematosus), infectious diseases, and cancers. Fluorogenic derivatization-liquid chromatography-tandem mass spectrometry (FD-LC-MS/MS) consists of fluorogenic derivatization of proteins, followed by HPLC of the derivatized proteins, isolation of the proteins differentially expressed in a certain group, enzymatic digestion of the isolated proteins followed by LC-tandem MS using a database-searching algorithm for protein identification. We have applied this method to understand the cardioprotective effect of pre-administration of docetaxel in adriamycin/docetaxel combination anti-cancer therapy, and the cellular processes that are affected by non-steroidal anti-inflammatory drugs (NSAIDs) in mouse stomach tissue during ulcer formation.
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Affiliation(s)
- Kaname Ohyama
- Graduate School of Biomedical Sciences, Nagasaki University
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Abstract
Comprehensive identification and profiling of antigens in immune complexes (IC-antigens) is useful to provide insights into pathophysiology and could form the basis for novel diagnostic and treatment strategies for many immune-related diseases. Immune complexome analysis is the method for comprehensively identifying and profiling IC-antigens in biological fluids (such as serum and cerebrospinal fluid). Here, we describe an IC-antigen detection method; specifically, ICs in biological fluids are captured by using protein G- or protein A-coated beads, are subjected to papain-digestion, elution, and tryptic digestion, and are analyzed by nano-liquid chromatography-tandem mass spectrometry (nano-LC-MS/MS).
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Affiliation(s)
- Nozomi Aibara
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Kaname Ohyama
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan.
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Abstract
The varied landscape of the adaptive immune response is determined by the peptides presented by immune cells, derived from viral or microbial pathogens or cancerous cells. The study of immune biomarkers or antigens is not new, and classical methods such as agglutination, enzyme-linked immunosorbent assay, or Western blotting have been used for many years to study the immune response to vaccination or disease. However, in many of these traditional techniques, protein or peptide identification has often been the bottleneck. Recent progress in genomics and mass spectrometry have led to many of the rapid advances in proteomics approaches. Immunoproteomics describes a rapidly growing collection of approaches that have the common goal of identifying and measuring antigenic peptides or proteins. This includes gel-based, array-based, mass spectrometry-based, DNA-based, or in silico approaches. Immunoproteomics is yielding an understanding of disease and disease progression, vaccine candidates, and biomarkers. This review gives an overview of immunoproteomics and closely related technologies that are used to define the full set of protein antigens targeted by the immune system during disease.
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Affiliation(s)
- Kelly M Fulton
- Human Health Therapeutics Research Centre, National Research Council of Canada, Ottawa, ON, Canada
| | - Isabel Baltat
- Human Health Therapeutics Research Centre, National Research Council of Canada, Ottawa, ON, Canada
| | - Susan M Twine
- Human Health Therapeutics Research Centre, National Research Council of Canada, Ottawa, ON, Canada.
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Aibara N, Ohyama K. Selective and Sensitive Mass Spectrometric Identification of Immune Complex Antigens in Cerebrospinal Fluid. Methods Mol Biol 2019; 2044:247-253. [PMID: 31432417 DOI: 10.1007/978-1-4939-9706-0_15] [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] [Indexed: 06/10/2023]
Abstract
Comprehensive identification of immune complex antigens (IC-antigens) in cerebrospinal fluid (CSF) is useful to provide insights into pathophysiology and could form the basis for novel diagnostic and treatment strategies for central nervous system autoimmune diseases and other neurological disorders. Immune complexome analysis is the method for comprehensively identifying IC-antigens in biological fluids (such as serum and CSF). Here, we describe IC-antigens detection method; specifically, ICs in CSF are captured and are subjected to papain-digestion elution and tryptic digestion, and are analyzed by nano-liquid chromatography-tandem mass spectrometry (nano-LC-MS/MS).
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Affiliation(s)
- Nozomi Aibara
- Unit of Medical Pharmacy, Department of Pharmacy Practice, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Kaname Ohyama
- Unit of Medical Pharmacy, Department of Pharmacy Practice, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan.
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Aibara N, Kamohara C, Chauhan AK, Kishikawa N, Miyata Y, Nakashima M, Kuroda N, Ohyama K. Selective, sensitive and comprehensive detection of immune complex antigens by immune complexome analysis with papain-digestion and elution. J Immunol Methods 2018; 461:85-90. [PMID: 30158077 DOI: 10.1016/j.jim.2018.06.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 06/28/2018] [Accepted: 06/28/2018] [Indexed: 01/06/2023]
Abstract
Comprehensive identification and profiling of antigens in immune complexes (ICs) in biological fluids, such as serum and cerebrospinal fluid, is useful for developing early diagnostic markers and specific treatments for many diseases. We have developed a method, designated "immune complexome analysis", to comprehensively identify the antigens in ICs. In this method, we first purify ICs from biological fluid by using Protein G- or Protein A-coated beads, then these ICs are subjected to tryptic digestion on the beads and subsequent analysis using nano-liquid chromatography-tandem mass spectrometry (nano-LC-MS/MS). We previously used this method to find specific antigens in circulating ICs (CIC-antigens) in serum for autoimmune diseases, infectious disease and cancers. However, this method detects not only CIC-antigens but also antibodies and proteins bound non-specifically to the beads, which restricts the detection of minor peptides released by the digestion of CIC-antigens whose amounts are generally much less than antibodies and the proteins. To selectively detect CIC-antigens with enhanced sensitivity, in this study we compared three methods (Method A, direct tryptic digestion on the beads; Method B, low-pH elution and tryptic digestion; Method C, papain-digestion, elution, and tryptic digestion) and examined which method selectively elutes CIC-antigens from CICs bound to the beads and selectively detects CIC-antigens using nano-LC-MS/MS. We also compared three types of CIC-capturing beads (Protein G-coated magnetic beads, Protein A-coated magnetic beads and Proceptor™-sepharose beads) to examine if parallel use of these beads aids the comprehensive detection of CIC-antigens in immune complexome analysis. Comparison showed that Method C provided the most selective and sensitive detection of CIC-antigens, without interference by antibodies and proteins non-specifically bound to the beads. In addition, using three types of beads allowed the examination of a wide range of CIC-antigens in immune complexome analysis. Therefore, combining Method C with three types of beads should allow the selective and sensitive identification of IC-antigens present in biological fluids from patients with a variety of diseases. The identification of IC-antigens may lead to the development of diagnostic methods and protocols for specific treatments for these diseases.
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Affiliation(s)
- Nozomi Aibara
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Chihiro Kamohara
- School of Pharmaceutical Sciences, Nagasaki University, Nagasaki, Japan
| | - Anil K Chauhan
- Division of Adult and Pediatric Rheumatology, Saint Louis University School of Medicine, St. Louis, MO, United States
| | - Naoya Kishikawa
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Yasuyoshi Miyata
- Department of Urology, Nagasaki University, Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Mikiro Nakashima
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Naotaka Kuroda
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Kaname Ohyama
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan.
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Dai Y, Hu Z, Chen Y, Lou B, Cui D, Xu A, Rao Y, He J, Yang J, Zeng X, Xu X, Wang G, Xu J, Zhou T, Sun C, Cheng J. A novel general and efficient technique for dissociating antigen in circulating immune complexes. Electrophoresis 2017; 39:406-416. [PMID: 28972666 DOI: 10.1002/elps.201700246] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 09/20/2017] [Accepted: 09/25/2017] [Indexed: 02/05/2023]
Abstract
Circulating immune complexes (CICs) are produced during the immune response. It is more clinically important to establish a general and efficient CICs dissociation technique for the detection of antigens for CICs other than the detection of free antigens in the serum. Polyethylene glycol (PEG) two-precipitation separation and glycine-HCl as a buffer system were employed to develop a general and efficient buffer dissociation technique to separate CICs from serum and dissociate antigens from CICs. The measurement value of new PEG two-precipitation separation technique was higher than traditional PEG precipitation separation technique. There were slight differences in the dissociation conditions of HCV Core-IC, HIV P24-IC, Ins-IC and TG-IC as compared to HBsAg-IC. The detection of antigens in HBsAg-IC, HCV Core-IC, HIV P24-IC, Ins-IC and TG-IC with this technique was superior to that with HCl Dissociation, Trypsin Digestion or Immune Complex Transfer technique. PEG two-precipitation dissociation technique may reduce macromolecular protein and the adhesion of free antigens during the co-precipitation, which increases the efficiency of separation and precipitation of CICs. This technique also avoids the damage of reagents to antigens, assuring the repeatability, reliability and validity. Thus, this technique is application in samples negative or positive for free antigens.
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Affiliation(s)
- Yuzhu Dai
- Department of Clinical Laboratory, The 117th Hospital of PLA, Hangzhou, P. R. China
| | - Zhengjun Hu
- Department of Clinical Laboratory, First Affiliated Hospital, Zhejiang University of Traditional Chinese Medicine, Hangzhou, P. R. China
| | - Yu Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, P. R. China
| | - Bin Lou
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, P. R. China
| | - Dawei Cui
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, P. R. China
| | - Aifang Xu
- Department of Clinical Laboratory Science, Hangzhou Xixi Hospital, Hangzhou, P. R. China
| | - Yueli Rao
- Department of Clinical Laboratory, The 117th Hospital of PLA, Hangzhou, P. R. China
| | - Jiahui He
- Department of Clinical Laboratory Science, Hangzhou Xixi Hospital, Hangzhou, P. R. China
| | - Jiezuan Yang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, P. R. China
| | - Xianming Zeng
- Department of Clinical Laboratory, The 117th Hospital of PLA, Hangzhou, P. R. China
| | - Xujian Xu
- Department of Biotechnology, The University of Tokyo, Tokyo, Japan
| | - Guozheng Wang
- Department of Clinical Laboratory, The 117th Hospital of PLA, Hangzhou, P. R. China
| | - Jian Xu
- Medical Technology College, Zhejiang University of Traditional Chinese Medicine, Hangzhou, P. R. China
| | - Tieli Zhou
- Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, P. R. China
| | - Changgui Sun
- Department of Clinical Laboratory, The 117th Hospital of PLA, Hangzhou, P. R. China
| | - Jun Cheng
- Department of Clinical Laboratory, The 117th Hospital of PLA, Hangzhou, P. R. China.,Medical Technology College, Zhejiang University of Traditional Chinese Medicine, Hangzhou, P. R. China.,Faculty of Graduate Studies, Wenzhou Medical University, Wenzhou, P. R. China
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