1
|
Szymula A, Samayoa-Reyes G, Ogolla S, Liu B, Li S, George A, Van Sciver N, Rochford R, Simas JP, Kaye KM. Macrophages drive KSHV B cell latency. Cell Rep 2023; 42:112767. [PMID: 37440412 PMCID: PMC10528218 DOI: 10.1016/j.celrep.2023.112767] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 06/06/2023] [Accepted: 06/22/2023] [Indexed: 07/15/2023] Open
Abstract
Kaposi's sarcoma herpesvirus (KSHV) establishes lifelong infection and persists in latently infected B cells. Paradoxically, in vitro B cell infection is inefficient, and cells rapidly die, suggesting the absence of necessary factor(s). KSHV epidemiology unexpectedly mirrors that of malaria and certain helminthic infections, while other herpesviruses are ubiquitous. Elevated circulating monocytes are common in these parasitic infections. Here, we show that KSHV infection of monocytes or M-CSF-differentiated (M2) macrophages is highly efficient. Proteomic analyses demonstrate that infection induces macrophage production of B cell chemoattractants and activating factor. We find that KSHV acts with monocytes or M2 macrophages to stimulate B cell survival, proliferation, and plasmablast differentiation. Further, macrophages drive infected plasma cell differentiation and long-term viral latency. In Kenya, where KSHV is endemic, we find elevated monocyte levels in children with malaria. These findings demonstrate a role for mononuclear phagocytes in KSHV B cell latency and suggest that mononuclear phagocyte abundance may underlie KSHV's geographic disparity.
Collapse
Affiliation(s)
- Agnieszka Szymula
- Departments of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA; Program in Virology, Harvard Medical School, Boston, MA 02115, USA
| | - Gabriela Samayoa-Reyes
- Department of Immunology and Microbiology, School of Medicine, University of Colorado, Aurora, CO 80045, USA
| | - Sidney Ogolla
- Center for Global Health Research, Kenya Medical Research Institute, Kisumu 40100, Kenya
| | - Bing Liu
- Departments of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA; Program in Virology, Harvard Medical School, Boston, MA 02115, USA
| | - Shijun Li
- Departments of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA; Program in Virology, Harvard Medical School, Boston, MA 02115, USA
| | - Athira George
- Departments of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA; Program in Virology, Harvard Medical School, Boston, MA 02115, USA
| | - Nicholas Van Sciver
- Departments of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA; Program in Virology, Harvard Medical School, Boston, MA 02115, USA
| | - Rosemary Rochford
- Center for Global Health Research, Kenya Medical Research Institute, Kisumu 40100, Kenya
| | - J Pedro Simas
- Instituto de Medicina Molecular, Avenida Professor Egas Moniz, 1649-028 Lisboa, Portugal; Católica Biomedical Research, Católica Medical School, Universidade Católica Portuguesa, Palma de Cima, 1649-023 Lisboa, Portugal.
| | - Kenneth M Kaye
- Departments of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA; Program in Virology, Harvard Medical School, Boston, MA 02115, USA; Broad Institute of Harvard University and Massachusetts Institute of Technology, Cambridge, MA 02142, USA.
| |
Collapse
|
2
|
The Clonal Diversity of Peripheral B Cell Receptor Immune Repertoire Impaired by Residual Malignant B Cells Predicts Treatment Efficacy in B Cell Lymphoma Patients. Cancers (Basel) 2022; 14:cancers14194628. [PMID: 36230551 PMCID: PMC9564088 DOI: 10.3390/cancers14194628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 09/03/2022] [Accepted: 09/09/2022] [Indexed: 11/16/2022] Open
Abstract
Germinal center (GC) is the vital locus for the evolution of naïve B cells into memory B and plasma cells, but also a hotbed for the proliferation of malignant B cells. We hypothesized that malignant B cells may locally or globally impact GCs to produce peripheral B cell receptor immune repertoire (BCR IR) with reduced clonal diversity. In this study, we first validated our hypothesis in a novel human in-vitro GC (hiGC) model. The addition of the diffuse large B cell lymphoma (DLBCL) cells to the hiGC culture attenuated the rate of diversity growth. For clinical validation, we collected samples from 17 DLBCL patients at various points during high-dose therapy and autologous stem cell rescue. The elimination and reestablishment of the patients’ lymphatic pool allowed us to unambiguously monitor the impact of tumor cells on the replenishment of the peripheral BCR IR. Compared to the nine patients who did not relapse after treatment, relapsed patients tended to have a slower rate of recovery regarding the clonal diversity of their peripheral BCR IR. Our results suggest a mechanistic and clinical connection between residual tumor cells and abnormal peripheral BCR IR, which may corelate with treatment efficacy in B cell lymphomas.
Collapse
|
3
|
Matsuda Y, Watanabe T, Li XK. Approaches for Controlling Antibody-Mediated Allograft Rejection Through Targeting B Cells. Front Immunol 2021; 12:682334. [PMID: 34276669 PMCID: PMC8282180 DOI: 10.3389/fimmu.2021.682334] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 06/17/2021] [Indexed: 01/14/2023] Open
Abstract
Both acute and chronic antibody-mediated allograft rejection (AMR), which are directly mediated by B cells, remain difficult to treat. Long-lived plasma cells (LLPCs) in bone marrow (BM) play a crucial role in the production of the antibodies that induce AMR. However, LLPCs survive through a T cell-independent mechanism and resist conventional immunosuppressive therapy. Desensitization therapy is therefore performed, although it is accompanied by severe side effects and the pathological condition may be at an irreversible stage when these antibodies, which induce AMR development, are detected in the serum. In other words, AMR control requires the development of a diagnostic method that predicts its onset before LLPC differentiation and enables therapeutic intervention and the establishment of humoral immune monitoring methods providing more detailed information, including individual differences in the susceptibility to immunosuppressive agents and the pathological conditions. In this study, we reviewed recent studies related to the direct or indirect involvement of immunocompetent cells in the differentiation of naïve-B cells into LLPCs, the limitations of conventional methods, and the possible development of novel control methods in the context of AMR. This information will significantly contribute to the development of clinical applications for AMR and improve the prognosis of patients who undergo organ transplantation.
Collapse
Affiliation(s)
- Yoshiko Matsuda
- Division of Transplantation Immunology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Takeshi Watanabe
- Laboratory of Immunology, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Xiao-Kang Li
- Division of Transplantation Immunology, National Research Institute for Child Health and Development, Tokyo, Japan
| |
Collapse
|
4
|
Cotugno N, Santilli V, Pascucci GR, Manno EC, De Armas L, Pallikkuth S, Deodati A, Amodio D, Zangari P, Zicari S, Ruggiero A, Fortin M, Bromley C, Pahwa R, Rossi P, Pahwa S, Palma P. Artificial Intelligence Applied to in vitro Gene Expression Testing (IVIGET) to Predict Trivalent Inactivated Influenza Vaccine Immunogenicity in HIV Infected Children. Front Immunol 2020; 11:559590. [PMID: 33123133 PMCID: PMC7569088 DOI: 10.3389/fimmu.2020.559590] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 08/18/2020] [Indexed: 01/01/2023] Open
Abstract
The number of patients affected by chronic diseases with special vaccination needs is burgeoning. In this scenario, predictive markers of immunogenicity, as well as signatures of immune responses are typically missing even though it would especially improve the identification of personalized immunization practices in these populations. We aimed to develop a predictive score of immunogenicity to Influenza Trivalent Inactivated Vaccination (TIV) by applying deep machine learning algorithms using transcriptional data from sort-purified lymphocyte subsets after in vitro stimulation. Peripheral blood mononuclear cells (PBMCs) collected before TIV from 23 vertically HIV infected children under ART and virally controlled were stimulated in vitro with p09/H1N1 peptides (stim) or left unstimulated (med). A multiplexed-qPCR for 96 genes was made on fixed numbers of 3 B cell subsets, 3 T cell subsets and total PBMCs. The ability to respond to TIV was assessed through hemagglutination Inhibition Assay (HIV) and ELIspot and patients were classified as Responders (R) and Non Responders (NR). A predictive modeling framework was applied to the data set in order to define genes and conditions with the higher predicted probability able to inform the final score. Twelve NR and 11 R were analyzed for gene expression differences in all subsets and 3 conditions [med, stim or Δ (stim-med)]. Differentially expressed genes between R and NR were selected and tested with the Adaptive Boosting Model to build a prediction score. The score obtained from subsets revealed the best prediction score from 46 genes from 5 different subsets and conditions. Calculating a combined score based on these 5 categories, we achieved a model accuracy of 95.6% and only one misclassified patient. These data show how a predictive bioinformatic model applied to transcriptional analysis deriving from in-vitro stimulated lymphocytes subsets may predict poor or protective vaccination immune response in vulnerable populations, such as HIV-infected individuals. Future studies on larger cohorts are needed to validate such strategy in the context of vaccination trials.
Collapse
Affiliation(s)
- Nicola Cotugno
- Academic Department of Pediatrics (DPUO), Research Unit of Congenital and Perinatal Infections, Bambino Gesù Children's Hospital, Rome, Italy.,Chair of Pediatrics, Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - Veronica Santilli
- Academic Department of Pediatrics (DPUO), Research Unit of Congenital and Perinatal Infections, Bambino Gesù Children's Hospital, Rome, Italy
| | - Giuseppe Rubens Pascucci
- Academic Department of Pediatrics (DPUO), Research Unit of Congenital and Perinatal Infections, Bambino Gesù Children's Hospital, Rome, Italy
| | - Emma Concetta Manno
- Academic Department of Pediatrics (DPUO), Research Unit of Congenital and Perinatal Infections, Bambino Gesù Children's Hospital, Rome, Italy
| | - Lesley De Armas
- Miami Center for AIDS Research, Department of Microbiology and Immunology, Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Suresh Pallikkuth
- Miami Center for AIDS Research, Department of Microbiology and Immunology, Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Annalisa Deodati
- Academic Department of Pediatrics (DPUO), Research Unit of Growth Disorders, Bambino Gesù Children's Hospital, Rome, Italy
| | - Donato Amodio
- Academic Department of Pediatrics (DPUO), Research Unit of Congenital and Perinatal Infections, Bambino Gesù Children's Hospital, Rome, Italy.,Chair of Pediatrics, Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - Paola Zangari
- Academic Department of Pediatrics (DPUO), Research Unit of Congenital and Perinatal Infections, Bambino Gesù Children's Hospital, Rome, Italy
| | - Sonia Zicari
- Academic Department of Pediatrics (DPUO), Research Unit of Congenital and Perinatal Infections, Bambino Gesù Children's Hospital, Rome, Italy
| | - Alessandra Ruggiero
- Academic Department of Pediatrics (DPUO), Research Unit of Congenital and Perinatal Infections, Bambino Gesù Children's Hospital, Rome, Italy
| | | | | | - Rajendra Pahwa
- Miami Center for AIDS Research, Department of Microbiology and Immunology, Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Paolo Rossi
- Academic Department of Pediatrics (DPUO), Research Unit of Congenital and Perinatal Infections, Bambino Gesù Children's Hospital, Rome, Italy.,Chair of Pediatrics, Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - Savita Pahwa
- Miami Center for AIDS Research, Department of Microbiology and Immunology, Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Paolo Palma
- Academic Department of Pediatrics (DPUO), Research Unit of Congenital and Perinatal Infections, Bambino Gesù Children's Hospital, Rome, Italy.,Chair of Pediatrics, Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy
| |
Collapse
|
5
|
A Proliferation Inducing Ligand (APRIL) targeted antibody is a safe and effective treatment of murine IgA nephropathy. Kidney Int 2019; 96:104-116. [PMID: 31027890 DOI: 10.1016/j.kint.2019.01.031] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 01/07/2019] [Accepted: 01/10/2019] [Indexed: 12/14/2022]
Abstract
IgA nephropathy (IgAN) is the most prevalent primary chronic glomerular disease for which no safe disease-specific therapies currently exist. IgAN is an autoimmune disease involving the production of autoantigenic, aberrantly O-glycosylated IgA1 and ensuing deposition of nephritogenic immune complexes in the kidney. A Proliferation Inducing Ligand (APRIL) has emerged as a key B-cell-modulating factor in this pathogenesis. Using a mouse anti-APRIL monoclonal antibody (4540), we confirm both the pathogenic role of APRIL in IgAN and the therapeutic efficacy of antibody-directed neutralization of APRIL in the grouped mouse ddY disease model. Treatment with 4540 directly translated to a reduction in relevant pathogenic mechanisms including suppressed serum IgA levels, reduced circulating immune complexes, significantly lower kidney deposits of IgA, IgG and C3, and suppression of proteinuria compared to mice receiving vehicle or isotype control antibodies. Furthermore, we translated these findings to the pharmacological characterization of VIS649, a highly potent, humanized IgG2κ antibody targeting and neutralizing human APRIL through unique epitope engagement, leading to inhibition of APRIL-mediated B-cell activities. VIS649 treatment of non-human primates showed dose-dependent reduction of serum IgA levels of up to 70%. A reduction of IgA+, IgM+, and IgG+ B cells was noted in the gut-associated mucosa of VIS649-treated animals. Population-based modeling predicted a favorable therapeutic dosing profile for subcutaneous administration of VIS649 in the clinical setting. Thus, our data highlight the potential therapeutic benefit of VIS649 for the treatment of IgAN.
Collapse
|
6
|
Hammam AA, Elhoseiny SM, Sheir RES, Issa H. APRIL gene expression in a cohort of Egyptian acute myeloid leukemia patients: Clinical and prognostic significance. Cancer Genet 2018; 220:24-31. [PMID: 29310835 DOI: 10.1016/j.cancergen.2017.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 10/02/2017] [Accepted: 10/13/2017] [Indexed: 11/26/2022]
Abstract
APRIL (A Proliferation Inducing Ligand) is a member of the tumor necrosis factor (TNF) family. It is essential for the survival of normal and malignant B lymphocytes. Increased expression of APRIL is noted in most of hematological malignancies and auto immune diseases. We investigated the expression level of APRIL mRNA in 50 de novo acute myeloid leukemia (AML) patients, together with 20 healthy controls using a Real-Time Quantitative Reverse-Transcriptase Polymerase Chain Reaction (RTQ-PCR) with a specific aim of determining its relation to clinical features and laboratory findings at diagnosis and its impact on the response to therapy. APRIL mRNA expression level was significantly higher in AML patients than in controls (p = < 0.001). APRIL expression level was significantly higher in patients who didn't achieve CR compared to those who achieved CR (p < 0.001). Patients who did not achieve CR also had higher TLC, lower platelets and older age than CR patients. The difference was statistically significant (p < 0.001, p = 0.047, p = 0.019) respectively. APRIL levels showed significant positive correlation with TLC (r = 0.743.p < 0.001), with age (r = 0.296,p = 0.037) and a negative correlation with platelets count (r = -0.443,p = 0.001) and no correlation with gender, Hb level, BM blast, HSM or LNs enlargement. Our study has shown that APRIL is overexpressed in AML patients, its level might serve as an indicator for disease progression. APRIL might be an indicator for poor prognosis and treatment resistance in AML patient; therefore, APRIL antagonists may represent a novel therapeutic approach for the treatment of AML.
Collapse
Affiliation(s)
- Amira Ahmed Hammam
- Department of Clinical and Chemical Pathology, Beni Suef Teaching Hospital, Faculty of Medicine, Beni Suef University, Egypt
| | - Shereen Mohamed Elhoseiny
- Department of Clinical and Chemical Pathology, Beni Suef Teaching Hospital, Faculty of Medicine, Beni Suef University, Egypt
| | - Rania El-Sayed Sheir
- Department of Internal Medicine, Beni Suef Teaching Hospital, Faculty of Medicine, Beni Suef University, Egypt
| | - Hisham Issa
- Department of Clinical and Chemical Pathology, Beni Suef Teaching Hospital, Faculty of Medicine, Beni Suef University, Egypt.
| |
Collapse
|
7
|
Samy E, Wax S, Huard B, Hess H, Schneider P. Targeting BAFF and APRIL in systemic lupus erythematosus and other antibody-associated diseases. Int Rev Immunol 2017; 36:3-19. [PMID: 28215100 DOI: 10.1080/08830185.2016.1276903] [Citation(s) in RCA: 113] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The B cell-stimulating molecules, BAFF (B cell activating factor) and APRIL (a proliferation-inducing ligand), are critical factors in the maintenance of the B cell pool and humoral immunity. In addition, BAFF and APRIL are involved in the pathogenesis of a number of human autoimmune diseases, with elevated levels of these cytokines detected in the sera of patients with systemic lupus erythematosus (SLE), IgA nephropathy, Sjögren's syndrome, and rheumatoid arthritis. As such, both molecules are rational targets for new therapies in B cell-driven autoimmune diseases, and several inhibitors of BAFF or BAFF and APRIL together have been investigated in clinical trials. These include the BAFF/APRIL dual inhibitor, atacicept, and the BAFF inhibitor, belimumab, which is approved as an add-on therapy for patients with active SLE. Post hoc analyses of these trials indicate that baseline serum levels of BAFF and BAFF/APRIL correlate with treatment response to belimumab and atacicept, respectively, suggesting a role for the two molecules as predictive biomarkers. It will, however, be important to refine future testing to identify active forms of BAFF and APRIL in the circulation, as well as to distinguish between homotrimer and heteromer configurations. In this review, we discuss the rationale for dual BAFF/APRIL inhibition versus single BAFF inhibition in autoimmune disease, by focusing on the similarities and differences between the physiological and pathogenic roles of the two molecules. A summary of the preclinical and clinical data currently available is also presented.
Collapse
Affiliation(s)
- Eileen Samy
- a EMD Serono Research & Development Institute, Inc. , Billerica , Massachusetts , USA
| | - Stephen Wax
- a EMD Serono Research & Development Institute, Inc. , Billerica , Massachusetts , USA
| | - Bertrand Huard
- b Institute for Advanced Biosciences , University Grenoble Alpes , INSERM U1209, Grenoble , France
| | | | - Pascal Schneider
- d Department of Biochemistry , University of Lausanne , Lausanne , Switzerland
| |
Collapse
|
8
|
Matsuda Y, Imamura R, Takahara S. Evaluation of Antigen-Specific IgM and IgG Production during an In Vitro Peripheral Blood Mononuclear Cell Culture Assay. Front Immunol 2017; 8:794. [PMID: 28740496 PMCID: PMC5502262 DOI: 10.3389/fimmu.2017.00794] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 06/22/2017] [Indexed: 12/30/2022] Open
Abstract
The recent attention given to diseases associated with memory B-cell (mBC)-produced antibodies (Abs) suggests the need for a similar in vitro assay to evaluate the functions of mBCs. Here, we cultured peripheral blood mononuclear cells (PBMCs) with the intent to collect mBC-derived Abs in vitro and maintain their cell–cell contact-dependent interactions with helper T-cells. PBMCs were cultured with interleukin (IL)-21, CpG-oligodeoxynucleotides (ODN), phorbol myristate acetate (PMA), and phytohemagglutinin/leucoagglutinin (PHA-L) in 24-well flat-bottom plates (5 × 105 cells/well). A culture supernatant analysis of PBMCs from healthy donors (n = 10) indicated that antigen-specific IgM Ab levels in a PBMC culture supernatant might be better able to demonstrate the antigen sensitization status in a smaller peripheral blood sample, compared to IgG because Epstein–Barr virus-specific IgM mBCs circulate peripherally at a significantly higher frequency once antiviral humoral immunity has stabilized. Thus, our in vitro assay demonstrated the potential significance of antigen-specific IgM Ab production in the culture supernatants. Furthermore, an analysis of cultured PBMCs from allograft kidney recipients (n = 16) sensitized with de novo donor-specific human leukocyte antigen (HLA)-specific Abs (DSAs) showed that IgM-type HLA-specific Abs were detected mainly from the culture supernatants from PBMCs of patients with stable graft function, whereas IgG isotype HLA Abs were detectable only from patients with biopsy-proven antibody-mediated rejection. In other words, these IgG isotype Abs also represented an activated humoral immune response in vivo. Additionally, IgM- and IgG-expressing mBCs from healthy donors (n = 5) were cultured with IL-21, CpG-ODN, and a supernatant produced by stimulating CD19+ B-cell-depleted PBMCs with PHA-L and PMA in 24-well flat-bottom plates (1 × 105 cells/well), and the resulting in vitro analysis provided some information regarding the biological processes of IgG and IgM mBCs in peripheral blood. Taken together, our findings suggest that antigen-specific Ab subtype analyses of supernatants from cultured PBMCs might more effectively and accurately reflect a patient’s Ab-associated pathological condition vs. than serum IgG and IgM levels.
Collapse
Affiliation(s)
- Yoshiko Matsuda
- Department of Advanced Technology for Transplantation, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Ryoichi Imamura
- Department of Urology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Shiro Takahara
- Department of Advanced Technology for Transplantation, Graduate School of Medicine, Osaka University, Osaka, Japan
| |
Collapse
|
9
|
Bone Marrow Mesenchymal Stem Cells Enhance the Differentiation of Human Switched Memory B Lymphocytes into Plasma Cells in Serum-Free Medium. J Immunol Res 2016; 2016:7801781. [PMID: 27872867 PMCID: PMC5107863 DOI: 10.1155/2016/7801781] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 08/31/2016] [Accepted: 09/04/2016] [Indexed: 12/21/2022] Open
Abstract
The differentiation of human B lymphocytes into plasma cells is one of the most stirring questions with regard to adaptive immunity. However, the terminal differentiation and survival of plasma cells are still topics with much to be discovered, especially when targeting switched memory B lymphocytes. Plasma cells can migrate to the bone marrow in response to a CXCL12 gradient and survive for several years while secreting antibodies. In this study, we aimed to get closer to niches favoring plasma cell survival. We tested low oxygen concentrations and coculture with mesenchymal stem cells (MSC) from human bone marrow. Besides, all cultures were performed using an animal protein-free medium. Overall, our model enables the generation of high proportions of CD38+CD138+CD31+ plasma cells (≥50%) when CD40-activated switched memory B lymphocytes were cultured in direct contact with mesenchymal stem cells. In these cultures, the secretion of CXCL12 and TGF-β, usually found in the bone marrow, was linked to the presence of MSC. The level of oxygen appeared less impactful than the contact with MSC. This study shows for the first time that expanded switched memory B lymphocytes can be differentiated into plasma cells using exclusively a serum-free medium.
Collapse
|
10
|
Affiliation(s)
- M H A van Attekum
- Department of Hematology, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam
- Department of Experimental Immunology, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam
| | - A P Kater
- Department of Hematology, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam
- Lymphoma and Myeloma Center Amsterdam (LYMMCARE), Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam
| | - E Eldering
- Department of Experimental Immunology, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam
- Lymphoma and Myeloma Center Amsterdam (LYMMCARE), Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam
| |
Collapse
|
11
|
Zhang Y, Wang Y, Jiang Y, Pan W, Liu H, Yin J, Shen Y, Cao J. T follicular helper cells in patients with acute schistosomiasis. Parasit Vectors 2016; 9:321. [PMID: 27266984 PMCID: PMC4895967 DOI: 10.1186/s13071-016-1602-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 05/20/2016] [Indexed: 11/24/2022] Open
Abstract
Background The role of T follicular helper (Tfh) cells in schistosome infection is not fully defined. In a previous study, a higher frequency of circulating PD-1+CXCR5+CD4+ Tfh cells was observed in patients with chronic schistosomiasis relative to healthy controls (HCs) and it correlated positively with the level of soluble egg antigen (SEA) specific antibodies in serum. However, the function of Tfh cells in patients with acute schistosomiasis remains elusive; this was investigated in the present study. Methods The frequency of circulating Tfh cells and the expression of inducible T cell co-stimulator (ICOS), programmed cell death 1 (PD-1) and B cell subsets were analyzed in 12 patients with acute schistosomiasis and 10 HCs by flow cytometry. The expression of Bcl6, c-Maf and IL-21 mRNA were detected by quantitative real-time reverse transcriptase PCR (qRT-PCR). The concentration of serum IL-21 and IgG specific to Schistosoma japonicum antigen were then determined by enzyme linked immunosorbent assay (ELISA). Correlations between PD-1+CXCR5+CD4+ Tfh cells, memory B cells and IgG specific to S. japonicum were analyzed by Spearman’s rank correlation. Results The frequency of PD-1+CXCR5+CD4+ Tfh and memory B cells was increased in acute schistosomiasis patients relative to HCs. Moreover, the levels of IL-21 in serum and the expression of IL-21 mRNA were higher in acute schistosomiasis patients. However, there was no significant correlation between PD-1+CXCR5+CD4+ Tfh cells, memory B cells and IgG specific to S. japonicum antigen in patients with acute schistosomiasis. Conclusions PD-1+CXCR5+CD4+ Tfh cells in peripheral blood are involved in the immune response of patients with acute schistosomiasis. Understanding the immunological mechanism is helpful for the development of vaccination strategies to control schistosomiasis.
Collapse
Affiliation(s)
- Yumei Zhang
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, 200025, China.,Key Laboratory of Parasite and Vector Biology, MOH, Shanghai, 200025, China.,National Center for International Research on Tropical Diseases, Shanghai, 200025, China.,WHO Collaborating Center for Tropical Diseases, Shanghai, 200025, China.,Department of Pathogenic Biology, Binzhou Medical University, Yantai, 264003, Shandong, China
| | - Yanjuan Wang
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, 200025, China. .,Key Laboratory of Parasite and Vector Biology, MOH, Shanghai, 200025, China. .,National Center for International Research on Tropical Diseases, Shanghai, 200025, China. .,WHO Collaborating Center for Tropical Diseases, Shanghai, 200025, China.
| | - Yanyan Jiang
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, 200025, China.,Key Laboratory of Parasite and Vector Biology, MOH, Shanghai, 200025, China.,National Center for International Research on Tropical Diseases, Shanghai, 200025, China.,WHO Collaborating Center for Tropical Diseases, Shanghai, 200025, China
| | - Wei Pan
- Department of Pathogenic Biology and Immunity, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Hua Liu
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, 200025, China.,Key Laboratory of Parasite and Vector Biology, MOH, Shanghai, 200025, China.,National Center for International Research on Tropical Diseases, Shanghai, 200025, China.,WHO Collaborating Center for Tropical Diseases, Shanghai, 200025, China
| | - Jianhai Yin
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, 200025, China.,Key Laboratory of Parasite and Vector Biology, MOH, Shanghai, 200025, China.,National Center for International Research on Tropical Diseases, Shanghai, 200025, China.,WHO Collaborating Center for Tropical Diseases, Shanghai, 200025, China
| | - Yujuan Shen
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, 200025, China.,Key Laboratory of Parasite and Vector Biology, MOH, Shanghai, 200025, China.,National Center for International Research on Tropical Diseases, Shanghai, 200025, China.,WHO Collaborating Center for Tropical Diseases, Shanghai, 200025, China
| | - Jianping Cao
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, 200025, China. .,Key Laboratory of Parasite and Vector Biology, MOH, Shanghai, 200025, China. .,National Center for International Research on Tropical Diseases, Shanghai, 200025, China. .,WHO Collaborating Center for Tropical Diseases, Shanghai, 200025, China.
| |
Collapse
|
12
|
Wang JZ, Zhang YH, Guo XH, Zhang HY, Zhang Y. The double-edge role of B cells in mediating antitumor T-cell immunity: Pharmacological strategies for cancer immunotherapy. Int Immunopharmacol 2016; 36:73-85. [PMID: 27111515 DOI: 10.1016/j.intimp.2016.04.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Revised: 04/10/2016] [Accepted: 04/13/2016] [Indexed: 12/22/2022]
Abstract
Emerging evidence reveals the controversial role of B cells in antitumor immunity, but the underlying mechanisms have to be explored. Three latest articles published in the issue 521 of Nature in 2015 reconfirmed the puzzling topic and put forward some explanations of how B cells regulate antitumor T-cell responses both positively and negatively. This paper attempts to demonstrate that different B-cell subpopulations have distinct immunological properties and that they are involved in either antitumor responses or immunosuppression. Recent studies supporting the positive and negative roles of B cells in tumor development were summarized comprehensively. Several specific B-cell subpopulations, such as IgG(+), IgA(+), IL-10(+), and regulatory B cells, were described in detail. The mechanisms underlying the controversial B-cell effects were mainly attributed to different B-cell subpopulations, different B-cell-derived cytokines, direct B cell-T cell interaction, different cancer categories, and different malignant stages, and the immunological interaction between B cells and T cells is mediated by dendritic cells. Promising B-cell-based antitumor strategies were proposed and novel B-cell regulators were summarized to present interesting therapeutic targets. Future investigations are needed to make sure that B-cell-based pharmacological strategies benefit cancer immunotherapy substantially.
Collapse
Affiliation(s)
- Jing-Zhang Wang
- Department of Medical Technology, College of Medicine, Affiliated Hospital, Hebei University of Engineering, Handan 056002, PR China.
| | - Yu-Hua Zhang
- Department of Library, Hebei University of Engineering, Handan 056038, PR China
| | - Xin-Hua Guo
- Department of Medicine, College of Medicine, Hebei University of Engineering, Handan 056002, PR China
| | - Hong-Yan Zhang
- Department of Medical Technology, College of Medicine, Affiliated Hospital, Hebei University of Engineering, Handan 056002, PR China
| | - Yuan Zhang
- Department of Medical Technology, College of Medicine, Affiliated Hospital, Hebei University of Engineering, Handan 056002, PR China
| |
Collapse
|
13
|
Polverino F, Laucho-Contreras M, Rojas Quintero J, Divo M, Pinto-Plata V, Sholl L, de-Torres JP, Celli BR, Owen CA. Increased expression of A Proliferation-inducing Ligand (APRIL) in lung leukocytes and alveolar epithelial cells in COPD patients with non small cell lung cancer: a possible link between COPD and lung cancer? Multidiscip Respir Med 2016; 11:17. [PMID: 27047662 PMCID: PMC4819280 DOI: 10.1186/s40248-016-0051-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 02/17/2016] [Indexed: 11/26/2022] Open
Abstract
Background Chronic Obstructive Pulmonary Disease (COPD) is characterized by an excessive activation of the adaptive immune system and, in particular, uncontrolled expansion of the B-cell pool. One of the key promoters of B cell expansion is A PRoliferation-Inducing Ligand (APRIL). APRIL has been strongly linked to non small cell lung cancer (NSCLC) onset and progression previously. However, little is known about the expression of APRIL in the lungs of COPD patients. Methods Using immuno-fluorescence staining, the expression of APRIL was assessed in sections of lungs from 4 subjects with primary diagnosis of COPD (FEV1 33 ± 20 % predicted), 4 subjects with primary diagnosis of NSCLC, 4 subjects diagnosed with both COPD and NSCLC, smokers without COPD or NSCLC and 3 healthy never-smokers. The percentage of B cells, alveolar macrophages (AMs) and polymorphonuclear neutrophils (PMNs) in the lung and alveolar epithelial cells (AECs) that stained positively for APRIL was quantified using epi-fluorescence microscopy and image analysis software. Results The percentage of APRIL-expressing B cells, AMs, PMNs and alveolar epithelial cells (AECs) was higher in patients having both COPD and NSCLC than in patients with either COPD or NSCLC alone, SC or NSC (p < 0.03 for all comparisons). The percentage of APRIL-expressing AMs and AECs (but not in B cells) was higher in patients with NSCLC alone than in patients with COPD alone. The percentage of APRIL-expressing AECs (but not B cells or AMs) was higher in COPD patients than in SC and NSC (p < 0.05 for all comparisons). The percentage of APRIL-expressing B cells, AMs and AECs cells was similar in NSC and SC. Conclusion The percentage of APRIL-expressing B cells, AMs and AECs is higher in the lungs of patients with both COPD and NSCLC than in patients with COPD or NSCLC alone or control subjects. These findings suggest that APRIL may contribute to the pathogenesis of both COPD and NSCLC, and possibly to the development of NSCLC in patients with established COPD.
Collapse
Affiliation(s)
- Francesca Polverino
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Room 855B, Harvard Institutes of Medicine Building, 77 Avenue Louis Pasteur, Boston, MA 02115 USA.,Lovelace Respiratory Research Institute, Albuquerque, NM USA.,University of Parma, Parma, Italy
| | - Maria Laucho-Contreras
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Room 855B, Harvard Institutes of Medicine Building, 77 Avenue Louis Pasteur, Boston, MA 02115 USA
| | - Joselyn Rojas Quintero
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Room 855B, Harvard Institutes of Medicine Building, 77 Avenue Louis Pasteur, Boston, MA 02115 USA
| | - Miguel Divo
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Room 855B, Harvard Institutes of Medicine Building, 77 Avenue Louis Pasteur, Boston, MA 02115 USA.,Lovelace Respiratory Research Institute, Albuquerque, NM USA
| | - Victor Pinto-Plata
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Room 855B, Harvard Institutes of Medicine Building, 77 Avenue Louis Pasteur, Boston, MA 02115 USA.,Lovelace Respiratory Research Institute, Albuquerque, NM USA
| | - Lynette Sholl
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA USA
| | | | - Bartolome R Celli
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Room 855B, Harvard Institutes of Medicine Building, 77 Avenue Louis Pasteur, Boston, MA 02115 USA.,Lovelace Respiratory Research Institute, Albuquerque, NM USA
| | - Caroline A Owen
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Room 855B, Harvard Institutes of Medicine Building, 77 Avenue Louis Pasteur, Boston, MA 02115 USA.,Lovelace Respiratory Research Institute, Albuquerque, NM USA
| |
Collapse
|
14
|
Distribution of Peripheral Memory T Follicular Helper Cells in Patients with Schistosomiasis Japonica. PLoS Negl Trop Dis 2015; 9:e0004015. [PMID: 26284362 PMCID: PMC4540279 DOI: 10.1371/journal.pntd.0004015] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Accepted: 07/29/2015] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Schistosomiasis is a helminthic disease that affects more than 200 million people. An effective vaccine would be a major step towards eliminating the disease. Studies suggest that T follicular helper (Tfh) cells provide help to B cells to generate the long-term humoral immunity, which would be a crucial component of successful vaccines. Thus, understanding the biological characteristics of Tfh cells in patients with schistosomiasis, which has never been explored, is essential for vaccine design. METHODOLOGY/PRINCIPAL FINDINGS In this study, we investigated the biological characteristics of peripheral memory Tfh cells in schistosomiasis patients by flow cytometry. Our data showed that the frequencies of total and activated peripheral memory Tfh cells in patients were significantly increased during Schistosoma japonicum infection. Moreover, Tfh2 cells, which were reported to be a specific subpopulation to facilitate the generation of protective antibodies, were increased more greatly than other subpopulations of total peripheral memory Tfh cells in patients with schistosomiasis japonica. More importantly, our result showed significant correlations of the percentage of Tfh2 cells with both the frequency of plasma cells and the level of IgG antibody. In addition, our results showed that the percentage of T follicular regulatory (Tfr) cells was also increased in patients with schistosomiasis. CONCLUSIONS/SIGNIFICANCE Our report is the first characterization of peripheral memory Tfh cells in schistosomasis patients, which not only provides potential targets to improve immune response to vaccination, but also is important for the development of vaccination strategies to control schistosomiasis.
Collapse
|