1
|
An N-glycosylation hotspot in immunoglobulin κ light chains is associated with AL amyloidosis. Leukemia 2022; 36:2076-2085. [PMID: 35610346 DOI: 10.1038/s41375-022-01599-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 05/05/2022] [Accepted: 05/11/2022] [Indexed: 12/24/2022]
Abstract
Immunoglobulin light chain (AL) amyloidosis is caused by a small, minimally proliferating B-cell/plasma-cell clone secreting a patient-unique, aggregation-prone, toxic light chain (LC). The pathogenicity of LCs is encrypted in their sequence, yet molecular determinants of amyloidogenesis are poorly understood. Higher rates of N-glycosylation among clonal κ LCs from patients with AL amyloidosis compared to other monoclonal gammopathies indicate that this post-translational modification is associated with a higher risk of developing AL amyloidosis. Here, we exploited LC sequence information from previously published amyloidogenic and control clonal LCs and from a series of 220 patients with AL amyloidosis or multiple myeloma followed at our Institutions to define sequence and spatial features of N-glycosylation, combining bioinformatics, biochemical, proteomics, structural and genetic analyses. We found peculiar sequence and spatial pattern of N-glycosylation in amyloidogenic κ LCs, with most of the N-glycosylation sites laying in the framework region 3, particularly within the E strand, and consisting mainly of the NFT sequon, setting them apart with respect to non-amyloidogenic clonal LCs. Our data further support a potential role of N-glycosylation in determining the pathogenic behavior of a subset of amyloidogenic LCs and may help refine current N-glycosylation-based prognostic assessments for patients with monoclonal gammopathies.
Collapse
|
2
|
Chiodin G, Allen JD, Bryant DJ, Rock P, Martino EA, Valle-Argos B, Duriez PJ, Watanabe Y, Henderson I, Blachly JS, McCann KJ, Strefford JC, Packham G, Geijtenbeek TBH, Figdor CG, Wright GW, Staudt LM, Burack R, Bowden TA, Crispin M, Stevenson FK, Forconi F. Insertion of atypical glycans into the tumor antigen-binding site identifies DLBCLs with distinct origin and behavior. Blood 2021; 138:1570-1582. [PMID: 34424958 PMCID: PMC8554650 DOI: 10.1182/blood.2021012052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 08/03/2021] [Indexed: 12/12/2022] Open
Abstract
Glycosylation of the surface immunoglobulin (Ig) variable region is a remarkable follicular lymphoma-associated feature rarely seen in normal B cells. Here, we define a subset of diffuse large B-cell lymphomas (DLBCLs) that acquire N-glycosylation sites selectively in the Ig complementarity-determining regions (CDRs) of the antigen-binding sites. Mass spectrometry and X-ray crystallography demonstrate how the inserted glycans are stalled at oligomannose-type structures because they are buried in the CDR loops. Acquisition of sites occurs in ∼50% of germinal-center B-cell-like DLBCL (GCB-DLBCL), mainly of the genetic EZB subtype, irrespective of IGHV-D-J use. This markedly contrasts with the activated B-cell-like DLBCL Ig, which rarely has sites in the CDR and does not seem to acquire oligomannose-type structures. Acquisition of CDR-located acceptor sites associates with mutations of epigenetic regulators and BCL2 translocations, indicating an origin shared with follicular lymphoma. Within the EZB subtype, these sites are associated with more rapid disease progression and with significant gene set enrichment of the B-cell receptor, PI3K/AKT/MTORC1 pathway, glucose metabolism, and MYC signaling pathways, particularly in the fraction devoid of MYC translocations. The oligomannose-type glycans on the lymphoma cells interact with the candidate lectin dendritic cell-specific intercellular adhesion molecule 3 grabbing non-integrin (DC-SIGN), mediating low-level signals, and lectin-expressing cells form clusters with lymphoma cells. Both clustering and signaling are inhibited by antibodies specifically targeting the DC-SIGN carbohydrate recognition domain. Oligomannosylation of the tumor Ig is a posttranslational modification that readily identifies a distinct GCB-DLBCL category with more aggressive clinical behavior, and it could be a potential precise therapeutic target via antibody-mediated inhibition of the tumor Ig interaction with DC-SIGN-expressing M2-polarized macrophages.
Collapse
Affiliation(s)
- Giorgia Chiodin
- School of Cancer Sciences, Cancer Research United Kingdom Southampton Centre, Faculty of Medicine
| | - Joel D Allen
- School of Biological Sciences, University of Southampton, Southampton, United Kingdom
| | - Dean J Bryant
- School of Cancer Sciences, Cancer Research United Kingdom Southampton Centre, Faculty of Medicine
| | - Philip Rock
- Department of Pathology and Laboratory Medicine/Hematopathology, University of Rochester Medical Center, Rochester, NY
| | - Enrica A Martino
- School of Cancer Sciences, Cancer Research United Kingdom Southampton Centre, Faculty of Medicine
- Division of Hematology, Azienda Policlinico-Ospedale Vittorio Emanuele, University of Catania, Catania, Italy
| | - Beatriz Valle-Argos
- School of Cancer Sciences, Cancer Research United Kingdom Southampton Centre, Faculty of Medicine
| | - Patrick J Duriez
- School of Cancer Sciences, Cancer Research United Kingdom Southampton Centre, Faculty of Medicine
| | - Yasunori Watanabe
- Oxford Glycobiology Institute, Department of Biochemistry, University of Oxford, Oxford, United Kingdom
| | - Isla Henderson
- School of Cancer Sciences, Cancer Research United Kingdom Southampton Centre, Faculty of Medicine
| | - James S Blachly
- Division of Hematology, The Ohio State University, Columbus, OH
| | - Katy J McCann
- School of Cancer Sciences, Cancer Research United Kingdom Southampton Centre, Faculty of Medicine
| | - Jonathan C Strefford
- School of Cancer Sciences, Cancer Research United Kingdom Southampton Centre, Faculty of Medicine
| | - Graham Packham
- School of Cancer Sciences, Cancer Research United Kingdom Southampton Centre, Faculty of Medicine
| | - Teunis B H Geijtenbeek
- Department of Experimental Immunology, Amsterdam Infection and Immunity Institute, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Carl G Figdor
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - George W Wright
- Biometric Research Branch, Division of Cancer Diagnosis and Treatment
| | - Louis M Staudt
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD; and
| | - Richard Burack
- Department of Pathology and Laboratory Medicine/Hematopathology, University of Rochester Medical Center, Rochester, NY
| | - Thomas A Bowden
- Oxford Glycobiology Institute, Department of Biochemistry, University of Oxford, Oxford, United Kingdom
| | - Max Crispin
- School of Biological Sciences, University of Southampton, Southampton, United Kingdom
| | - Freda K Stevenson
- School of Cancer Sciences, Cancer Research United Kingdom Southampton Centre, Faculty of Medicine
| | - Francesco Forconi
- School of Cancer Sciences, Cancer Research United Kingdom Southampton Centre, Faculty of Medicine
- Haematology Department, Cancer Care Directorate, University Hospital Southampton National Health Service Trust, Southampton, United Kingdom
| |
Collapse
|
3
|
Yan Y, Han R, Hou Y, Zhang H, Yu J, Gao W, Xu L, Tang K. Bowl-like mesoporous polydopamine with size exclusion for highly selective recognition of endogenous glycopeptides. Talanta 2021; 233:122468. [PMID: 34215103 DOI: 10.1016/j.talanta.2021.122468] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 04/16/2021] [Accepted: 04/23/2021] [Indexed: 01/01/2023]
Abstract
It has been confirmed that endogenous glycopeptide plays an important role in a variety of pathological and physiological processes. However, direct analysis of endogenous glycopeptide is still a great challenge owing to the low abundance of endogenous glycopeptides and the presence of a large number of interfering substances such as large-sized proteins and heteropeptides in complex biological sample. Herein, we reported a novel bowl-like mesoporous polydopamine nanoparticle modified by carrageenan (denoted as MPDA@PEI@CA) with strong hydrophilicity and size-exclusion effect for high specificity enrichment of endogenous glycopeptides. Thanks to the suitable pore channel structure as well as strong hydrophilic surface, the as-prepared MPDA@PEI@CA nanoparticles exhibited prominent performance in enrichment of N-linked glycopeptide with ultrahigh selectivity (1:5000 M ratio of horseradish peroxidase (HRP) digests/bovine serum albumin (BSA) digests), low detection limit (5 fmol μL-1), outstanding size-exclusion ability (1:1000 mass of HRP/BSA), and unique reusability (five times). 125 N-glycosylation sites of 134 glycopeptides from 65 glycoproteins were identified from 2 μL sample of human serum treated with the MPDA@PEI@CA nanoparticles, which manifested the ability to enrich endogenous N-linked glycopeptides from complex biological samples. These results indicated that the bowl-like MPDA@PEI@CA nanoparticles with novel structure prepared in this work had great potential for glycopeptidome analysis.
Collapse
Affiliation(s)
- Yuyan Yan
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, PR China; Institute of Mass Spectrometry, School of Materials Science & Chemical Engineering, Ningbo University, Ningbo, 315211, PR China
| | - Renlu Han
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, PR China; Institute of Mass Spectrometry, School of Materials Science & Chemical Engineering, Ningbo University, Ningbo, 315211, PR China.
| | - Yafei Hou
- Department of Microelectronic Science and Engineering, Ningbo University, Ningbo, 315211, PR China
| | - Huijun Zhang
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, PR China; Institute of Mass Spectrometry, School of Materials Science & Chemical Engineering, Ningbo University, Ningbo, 315211, PR China
| | - Jiancheng Yu
- Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo, 315211, PR China
| | - Wenqing Gao
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, PR China; Institute of Mass Spectrometry, School of Materials Science & Chemical Engineering, Ningbo University, Ningbo, 315211, PR China
| | - Long Xu
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, PR China; Institute of Mass Spectrometry, School of Materials Science & Chemical Engineering, Ningbo University, Ningbo, 315211, PR China
| | - Keqi Tang
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, PR China; Institute of Mass Spectrometry, School of Materials Science & Chemical Engineering, Ningbo University, Ningbo, 315211, PR China.
| |
Collapse
|
4
|
Post-transplant lymphoproliferative disorders: role of viral infection, genetic lesions and antigen stimulation in the pathogenesis of the disease. Mediterr J Hematol Infect Dis 2009; 1:e2009018. [PMID: 21416004 PMCID: PMC3033173 DOI: 10.4084/mjhid.2009.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2009] [Accepted: 12/09/2009] [Indexed: 12/13/2022] Open
Abstract
Post-transplant lymphoproliferative disorders (PTLD) are a life-threatening complication of solid organ transplantation or, more rarely, hematopoietic stem cell transplantation. The majority of PTLD is of B-cell origin and associated with Epstein–Barr virus (EBV) infection. PTLD generally display involvement of extranodal sites, aggressive histology and aggressive clinical behavior. The molecular pathogenesis of PTLD involves infection by oncogenic viruses, namely EBV, as well as genetic or epigenetic alterations of several cellular genes. At variance with lymphoma arising in immunocompetent hosts, whose genome is relatively stable, a fraction of PTLD are characterized by microsatellite instability as a consequence of defects in the DNA mismatch repair mechanism. Apart from microsatellite instability, molecular alterations of cellular genes recognized in PTLD include alterations of cMYC, BCL6, TP53, DNA hypermethylation, and aberrant somatic hypermutation of protooncogenes. The occurrence of IGV mutations in the overwhelming majority of PTLD documents that malignant transformation targets germinal centre (GC) B-cells and their descendants both in EBV–positive and EBV–negative cases. Analysis of phenotypic markers of B-cell histogenesis, namely BCL6, MUM1 and CD138, allows further distinction of PTLD histogenetic categories. PTLD expressing the BCL6+/MUM1+/-/CD138− profile reflect B-cells actively experiencing the GC reaction, and comprise diffuse large B-cell lymphoma (DLBCL) centroblastic and Burkitt lymphoma. PTLD expressing the BCL6−/MUM1+/CD138− phenotype putatively derive from B-cells that have concluded the GC reaction, and comprise the majority of polymorphic PTLD and a fraction of DLBCL immunoblastic. A third group of PTLD is reminiscent of post-GC and preterminally differentiated B-cells that show the BCL6−/MUM1+/CD138+ phenotype, and are morphologically represented by either polymorphic PTLD or DLBCL immunoblastic.
Collapse
|
5
|
Capello D, Rossi D, Gaidano G. Post-transplant lymphoproliferative disorders: molecular basis of disease histogenesis and pathogenesis. Hematol Oncol 2006; 23:61-7. [PMID: 16216037 DOI: 10.1002/hon.751] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Post-transplant lymphoproliferative disorders (PTLD) represent a serious complication of solid organ and allogeneic bone marrow transplantation. PTLD generally display B-cell lineage derivation, involvement of extranodal sites, aggressive histology and clinical behaviour, and frequent association with EBV infection. The occurrence of IgV mutations in the overwhelming majority of PTLD documents that malignant transformation targets germinal centre (GC) B-cells and their descendants both in EBV-positive and EBV-negative cases. Analysis of phenotypic markers of B-cell histogenesis, namely BCL6, MUM-1 and CD138, allows further distinction of PTLD histogenetic categories. PTLD expressing the BCL6(+)/MUM1(+/-)/CD138(-) profile reflect B-cells actively experiencing the GC reaction and comprise diffuse large B-cell lymphoma (DLBCL) centroblastic and Burkitt lymphoma. PTLD expressing the BCL6(-)/MUM1(+)/CD138(-) phenotype putatively derive from B-cells that have concluded the GC reaction and comprise the majority of polymorphic PTLD and a fraction of DLBCL. A third group of PTLD is reminiscent of post-GC and pre- terminally differentiated B-cells that show the BCL6(-)/MUM1(+)/CD138(+) phenotype and are morphologically represented by either polymorphic PTLD or DLBCL immunoblastic. The molecular pathogenesis of PTLD involves infection by oncogenic viruses, namely Epstein-Barr virus, as well as genetic or epigenetic alterations of several cellular genes. At variance with lymphoma arising in immunocompetent hosts, whose genome is relatively stable, a fraction of PTLD are characterized by microsatellite instability as a consequence of defects in the DNA mismatch repair mechanism. Apart from microsatellite instability, molecular alterations of cellular genes recognized in PTLD include alterations of c-MYC, BCL-6, p53, DNA hypermethylation, and aberrant somatic hypermutation of proto-oncogenes.
Collapse
Affiliation(s)
- Daniela Capello
- Division of Hematology, Department of Medical Sciences and IRCAD, Amedeo Avogadro University of Eastern Piedmont, Novara, Italy
| | | | | |
Collapse
|
6
|
Capello D, Cerri M, Muti G, Lucioni M, Oreste P, Gloghini A, Berra E, Deambrogi C, Franceschetti S, Rossi D, Alabiso O, Morra E, Rambaldi A, Carbone A, Paulli M, Gaidano G. Analysis of immunoglobulin heavy and light chain variable genes in post-transplant lymphoproliferative disorders. Hematol Oncol 2006; 24:212-9. [PMID: 16897790 DOI: 10.1002/hon.791] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Post-transplant lymphoproliferative disorders (PTLD) derive from antigen-experienced B-cells and represent a major complication of solid organ transplantation. We characterized usage, mutation frequency and mutation pattern of immunoglobulin variable (IGV) gene rearrangements in 50 PTLD (polymorphic PTLD, n=10; diffuse large B-cell lymphoma, n=35; and Burkitt/Burkitt-like lymphoma, n=5). Among PTLD yielding clonal IGV amplimers, a functional IGV heavy chain (IGHV) rearrangement was found in 40/50 (80.0%) cases, whereas a potentially functional IGV light chain rearrangement was identified in 36/46 (78.3%) PTLD. By combining IGHV and IGV light chain rearrangements, 10/50 (20.0%) PTLD carried crippling mutations, precluding expression of a functional B-cell receptor (BCR). Immunohistochemistry showed detectable expression of IG light chains in only 18/43 (41.9%) PTLD. Failure to detect a functional IGV rearrangement associated with lack of IGV expression. Our data suggest that a large fraction of PTLD arise from germinal centre (GC)-experienced B-cells that display impaired BCR. Since a functional BCR is required for normal B-cell survival during GC transit, PTLD development may implicate rescue from apoptosis and expansion of B-cells that have failed the GC reaction. The high frequency of IGV loci inactivation appears to be a peculiar feature of PTLD among immunodeficiency-associated lymphoproliferations.
Collapse
Affiliation(s)
- Daniela Capello
- Department of Clinical and Experimental Medicine & IRCAD, Division of Hematology, Amedeo Avogadro University of Eastern Piedmont, Novara, Italy
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|