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Keszei M, Record J, Kritikou JS, Wurzer H, Geyer C, Thiemann M, Drescher P, Brauner H, Köcher L, James J, He M, Baptista MA, Dahlberg CI, Biswas A, Lain S, Lane DP, Song W, Pütsep K, Vandenberghe P, Snapper SB, Westerberg LS. Constitutive activation of WASp in X-linked neutropenia renders neutrophils hyperactive. J Clin Invest 2021; 131:156513. [PMID: 34850746 DOI: 10.1172/jci156513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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2
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Kritikou JS, Oliveira MM, Record J, Saeed MB, Nigam SM, He M, Keszei M, Wagner AK, Brauner H, Sendel A, Sedimbi SK, Rentouli S, Lane DP, Snapper SB, Kärre K, Vandenberghe P, Orange JS, Westerberg LS. Constitutive activation of WASp leads to abnormal cytotoxic cells with increased granzyme B and degranulation response to target cells. JCI Insight 2021; 6:140273. [PMID: 33621210 PMCID: PMC8026198 DOI: 10.1172/jci.insight.140273] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 02/17/2021] [Indexed: 11/23/2022] Open
Abstract
X-linked neutropenia (XLN) is caused by gain-of-function mutations in the actin regulator Wiskott-Aldrich Syndrome protein (WASp). XLN patients have reduced numbers of cytotoxic cells in peripheral blood; however, their capacity to kill tumor cells remains to be determined. Here, we examined NK and T cells from 2 patients with XLN harboring the activating WASpL270P mutation. XLN patient NK and T cells had increased granzyme B content and elevated degranulation and IFN-γ production when compared with healthy control cells. Murine WASpL272P NK and T cells formed stable synapses with YAC-1 tumor cells and anti-CD3/CD28–coated beads, respectively. WASpL272P mouse T cells had normal degranulation and cytokine response whereas WASpL272P NK cells showed an enhanced response. Imaging experiments revealed that while WASpL272P CD8+ T cells had increased accumulation of actin upon TCR activation, WASpL272P NK cells had normal actin accumulation at lytic synapses triggered through NKp46 signaling but had impaired response to lymphocyte function associated antigen-1 engagement. When compared with WT mice, WASpL272P mice showed reduced growth of B16 melanoma and increased capacity to reject MHC class I–deficient cells. Together, our data suggest that cytotoxic cells with constitutively active WASp have an increased capacity to respond to and kill tumor cells.
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Affiliation(s)
- Joanna S Kritikou
- Department of Microbiology Tumor and Cell Biology, Biomedicum C7, and
| | | | - Julien Record
- Department of Microbiology Tumor and Cell Biology, Biomedicum C7, and
| | - Mezida B Saeed
- Department of Microbiology Tumor and Cell Biology, Biomedicum C7, and
| | - Saket M Nigam
- Department of Microbiology Tumor and Cell Biology, Biomedicum C7, and
| | - Minghui He
- Department of Microbiology Tumor and Cell Biology, Biomedicum C7, and
| | - Marton Keszei
- Department of Microbiology Tumor and Cell Biology, Biomedicum C7, and
| | - Arnika K Wagner
- Department of Microbiology Tumor and Cell Biology, Biomedicum C7, and
| | - Hanna Brauner
- Department of Microbiology Tumor and Cell Biology, Biomedicum C7, and.,Department of Medicine, Solna, Division of Rheumatology, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Anton Sendel
- Department of Microbiology Tumor and Cell Biology, Biomedicum C7, and
| | | | | | - David P Lane
- Department of Microbiology Tumor and Cell Biology, Biomedicum C7, and
| | - Scott B Snapper
- Gastroenterology Division, Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Klas Kärre
- Department of Microbiology Tumor and Cell Biology, Biomedicum C7, and
| | | | - Jordan S Orange
- Department of Pediatrics, NewYork-Presbyterian Morgan Stanley Children's Hospital, Columbia University Vagelos College of Physicians and Surgeons, New York, New York, USA
| | - Lisa S Westerberg
- Department of Microbiology Tumor and Cell Biology, Biomedicum C7, and
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Record J, Sendel A, Kritikou JS, Kuznetsov NV, Brauner H, He M, Nagy N, Oliveira MMS, Griseti E, Haase CB, Dahlström J, Boddul S, Wermeling F, Thrasher AJ, Liu C, Andersson J, Claesson HE, Winqvist O, Burns SO, Björkholm M, Westerberg LS. An intronic deletion in megakaryoblastic leukemia 1 is associated with hyperproliferation of B cells in triplets with Hodgkin lymphoma. Haematologica 2019; 105:1339-1350. [PMID: 31582539 PMCID: PMC7193474 DOI: 10.3324/haematol.2019.216317] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 09/26/2019] [Indexed: 11/09/2022] Open
Abstract
Megakaryoblastic leukemia 1 (MKL1) is a coactivator of serum response factor and together they regulate transcription of actin cytoskeleton genes. MKL1 is associated with hematologic malignancies and immunodeficiency, but its role in B cells is unexplored. Here we examined B cells from monozygotic triplets with an intronic deletion in MKL1, two of whom had been previously treated for Hodgkin lymphoma (HL). To investigate MKL1 and B-cell responses in the pathogenesis of HL, we generated Epstein-Barr virus-transformed lymphoblastoid cell lines from the triplets and two controls. While cells from the patients with treated HL had a phenotype close to that of the healthy controls, cells from the undiagnosed triplet had increased MKL1 mRNA, increased MKL1 protein, and elevated expression of MKL1-dependent genes. This profile was associated with elevated actin content, increased cell spreading, decreased expression of CD11a integrin molecules, and delayed aggregation. Moreover, cells from the undiagnosed triplet proliferated faster, displayed a higher proportion of cells with hyperploidy, and formed large tumors in vivo This phenotype was reversible by inhibiting MKL1 activity. Interestingly, cells from the triplet treated for HL in 1985 contained two subpopulations: one with high expression of CD11a that behaved like control cells and the other with low expression of CD11a that formed large tumors in vivo similar to cells from the undiagnosed triplet. This implies that pre-malignant cells had re-emerged a long time after treatment. Together, these data suggest that dysregulated MKL1 activity participates in B-cell transformation and the pathogenesis of HL.
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Affiliation(s)
- Julien Record
- Department of Microbiology, Tumor and Cell Biology, Biomedicum, Karolinska Institutet, Stockholm, Sweden
| | - Anton Sendel
- Department of Microbiology, Tumor and Cell Biology, Biomedicum, Karolinska Institutet, Stockholm, Sweden
| | - Joanna S Kritikou
- Department of Microbiology, Tumor and Cell Biology, Biomedicum, Karolinska Institutet, Stockholm, Sweden
| | - Nikolai V Kuznetsov
- Department of Microbiology, Tumor and Cell Biology, Biomedicum, Karolinska Institutet, Stockholm, Sweden
| | - Hanna Brauner
- Department of Microbiology, Tumor and Cell Biology, Biomedicum, Karolinska Institutet, Stockholm, Sweden
| | - Minghui He
- Department of Microbiology, Tumor and Cell Biology, Biomedicum, Karolinska Institutet, Stockholm, Sweden
| | - Noemi Nagy
- Department of Microbiology, Tumor and Cell Biology, Biomedicum, Karolinska Institutet, Stockholm, Sweden
| | - Mariana M S Oliveira
- Department of Microbiology, Tumor and Cell Biology, Biomedicum, Karolinska Institutet, Stockholm, Sweden
| | - Elena Griseti
- Department of Microbiology, Tumor and Cell Biology, Biomedicum, Karolinska Institutet, Stockholm, Sweden
| | - Christoph B Haase
- Department of Microbiology, Tumor and Cell Biology, Biomedicum, Karolinska Institutet, Stockholm, Sweden
| | - Jenny Dahlström
- Department of Medicine Solna, Karolinska University Hospital, Stockholm, Sweden
| | - Sanjaykumar Boddul
- Department of Medicine Solna, Karolinska University Hospital, Stockholm, Sweden
| | - Fredrik Wermeling
- Department of Medicine Solna, Karolinska University Hospital, Stockholm, Sweden
| | | | - Chaohong Liu
- Department of Pathogen Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, China
| | - John Andersson
- Department of Microbiology, Tumor and Cell Biology, Biomedicum, Karolinska Institutet, Stockholm, Sweden.,Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Hans-Erik Claesson
- Department of Medicine Solna, Karolinska University Hospital, Stockholm, Sweden
| | - Ola Winqvist
- Department of Medicine Solna, Karolinska University Hospital, Stockholm, Sweden
| | - Siobhan O Burns
- Institute of Immunity and Transplantation, University College London, London, UK.,Department of Immunology, Royal Free London NHS Foundation Trust, London, UK
| | - Magnus Björkholm
- Department of Medicine Solna, Karolinska University Hospital, Stockholm, Sweden
| | - Lisa S Westerberg
- Department of Microbiology, Tumor and Cell Biology, Biomedicum, Karolinska Institutet, Stockholm, Sweden
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Keszei M, Record J, Kritikou JS, Wurzer H, Geyer C, Thiemann M, Drescher P, Brauner H, Köcher L, James J, He M, Baptista MA, Dahlberg CI, Biswas A, Lain S, Lane DP, Song W, Pütsep K, Vandenberghe P, Snapper SB, Westerberg LS. Constitutive activation of WASp in X-linked neutropenia renders neutrophils hyperactive. J Clin Invest 2018; 128:4115-4131. [PMID: 30124469 PMCID: PMC6118594 DOI: 10.1172/jci64772] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 07/03/2018] [Indexed: 02/06/2023] Open
Abstract
Congenital neutropenia is characterized by low absolute neutrophil numbers in blood, leading to recurrent bacterial infections, and patients often require life-long granulocyte CSF (G-CSF) support. X-linked neutropenia (XLN) is caused by gain-of-function mutations in the actin regulator Wiskott-Aldrich syndrome protein (WASp). To understand the pathophysiology in XLN and the role of WASp in neutrophils, we here examined XLN patients and 2 XLN mouse models. XLN patients had reduced myelopoiesis and extremely low blood neutrophil number. However, their neutrophils had a hyperactive phenotype and were present in normal numbers in XLN patient saliva. Murine XLN neutrophils were hyperactivated, with increased actin dynamics and migration into tissues. We provide molecular evidence that the hyperactivity of XLN neutrophils is caused by WASp in a constitutively open conformation due to contingent phosphorylation of the critical tyrosine-293 and plasma membrane localization. This renders WASp activity less dependent on regulation by PI3K. Our data show that the amplitude of WASp activity inside a cell could be enhanced by cell-surface receptor signaling even in the context in which WASp is already in an active conformation. Moreover, these data categorize XLN as an atypical congenital neutropenia in which constitutive activation of WASp in tissue neutrophils compensates for reduced myelopoiesis.
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Affiliation(s)
- Marton Keszei
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Julien Record
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Joanna S. Kritikou
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Hannah Wurzer
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Chiara Geyer
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Meike Thiemann
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Paul Drescher
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Hanna Brauner
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Laura Köcher
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Jaime James
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Minghui He
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Marisa A.P. Baptista
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Carin I.M. Dahlberg
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Amlan Biswas
- Gastroenterology Division, Children’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Sonia Lain
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - David P. Lane
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Wenxia Song
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, USA
| | - Katrin Pütsep
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Peter Vandenberghe
- Center for Human Genetics, Katholieke Universiteit (KU) Leuven and Hematology/Internal Medicine, University Hospitals Leuven, Leuven, Belgium
| | - Scott B. Snapper
- Gastroenterology Division, Children’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Lisa S. Westerberg
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
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Keszei M, Kritikou JS, Sandfort D, He M, Oliveira MMS, Wurzer H, Kuiper RV, Westerberg LS. Wiskott-Aldrich syndrome gene mutations modulate cancer susceptibility in the p53 ± murine model. Oncoimmunology 2018; 7:e1468954. [PMID: 30393584 PMCID: PMC6209425 DOI: 10.1080/2162402x.2018.1468954] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 04/16/2018] [Accepted: 04/19/2018] [Indexed: 12/23/2022] Open
Abstract
The Wiskott-Aldrich syndrome protein (WASp) is a key regulator of the actin cytoskeleton in hematopoietic cells and mutated in two severe immunodeficiency diseases with high incidence of cancer. Wiskott-Aldrich syndrome (WAS) is caused by loss-of-function mutations in WASp and most frequently associated with lymphoreticular tumors of poor prognosis. X-linked neuropenia (XLN) is caused by gain-of-function mutations in WASp and associated with acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS). To understand the role of WASp in tumorigenesis, we bred WASp+, WASp−, and WASp-XLN mice onto tumor susceptible p53+/- background and sub-lethally irradiated them to enhance tumor development. We followed the cohorts for 24 weeks and tumors were characterized by histology and flow cytometry to define the tumor incidence, onset, and cell origin. We found that p53+/-WASp+ mice developed malignancies, including solid tumors and T cell lymphomas with 71.4% of survival 24 weeks after irradiation. p53+/-WASp− mice showed lower survival rate and developed various early onset malignancies. Surprisingly, the p53+/-WASp-XLN mice developed malignancy mostly with late onset, which caused delayed mortality in this colony. This study provides evidence for that loss-of-function and gain-of-function mutations in WASp influence tumor incidence and onset.
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Affiliation(s)
- Marton Keszei
- Department of Microbiology Tumor and Cell biology, Karolinska Institutet, Stockholm, Sweden
| | - Joanna S Kritikou
- Department of Microbiology Tumor and Cell biology, Karolinska Institutet, Stockholm, Sweden
| | - Deborah Sandfort
- Department of Microbiology Tumor and Cell biology, Karolinska Institutet, Stockholm, Sweden
| | - Minghui He
- Department of Microbiology Tumor and Cell biology, Karolinska Institutet, Stockholm, Sweden
| | - Mariana M S Oliveira
- Department of Microbiology Tumor and Cell biology, Karolinska Institutet, Stockholm, Sweden
| | - Hannah Wurzer
- Department of Microbiology Tumor and Cell biology, Karolinska Institutet, Stockholm, Sweden
| | - Raoul V Kuiper
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Lisa S Westerberg
- Department of Microbiology Tumor and Cell biology, Karolinska Institutet, Stockholm, Sweden
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6
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Kuznetsov NV, Almuzzaini B, Kritikou JS, Baptista MAP, Oliveira MMS, Keszei M, Snapper SB, Percipalle P, Westerberg LS. Nuclear Wiskott-Aldrich syndrome protein co-regulates T cell factor 1-mediated transcription in T cells. Genome Med 2017; 9:91. [PMID: 29078804 PMCID: PMC5660450 DOI: 10.1186/s13073-017-0481-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 10/11/2017] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND The Wiskott-Aldrich syndrome protein (WASp) family of actin-nucleating factors are present in the cytoplasm and in the nucleus. The role of nuclear WASp for T cell development remains incompletely defined. METHODS We performed WASp chromatin immunoprecipitation and deep sequencing (ChIP-seq) in thymocytes and spleen CD4+ T cells. RESULTS WASp was enriched at genic and intergenic regions and associated with the transcription start sites of protein-coding genes. Thymocytes and spleen CD4+ T cells showed 15 common WASp-interacting genes, including the gene encoding T cell factor (TCF)12. WASp KO thymocytes had reduced nuclear TCF12 whereas thymocytes expressing constitutively active WASpL272P and WASpI296T had increased nuclear TCF12, suggesting that regulated WASp activity controlled nuclear TCF12. We identify a putative DNA element enriched in WASp ChIP-seq samples identical to a TCF1-binding site and we show that WASp directly interacted with TCF1 in the nucleus. CONCLUSIONS These data place nuclear WASp in proximity with TCF1 and TCF12, essential factors for T cell development.
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Affiliation(s)
- Nikolai V Kuznetsov
- Department of Microbiology Tumor and Cell biology, Karolinska Institutet, Stockholm, 171 77, Sweden
| | - Bader Almuzzaini
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, 171 77, Sweden.,King Abdullah International Medical Research Center/King Saud bin Abdulaziz University for Health Sciences Medical Genomic Research Department, MNGHA, Riyadh, Saudi Arabia
| | - Joanna S Kritikou
- Department of Microbiology Tumor and Cell biology, Karolinska Institutet, Stockholm, 171 77, Sweden
| | - Marisa A P Baptista
- Department of Microbiology Tumor and Cell biology, Karolinska Institutet, Stockholm, 171 77, Sweden.,Institute for Virology and Immunobiology, University of Würzburg, 97078, Würzburg, Germany
| | - Mariana M S Oliveira
- Department of Microbiology Tumor and Cell biology, Karolinska Institutet, Stockholm, 171 77, Sweden
| | - Marton Keszei
- Department of Microbiology Tumor and Cell biology, Karolinska Institutet, Stockholm, 171 77, Sweden
| | - Scott B Snapper
- Gastroenterology Division, Children's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Piergiorgio Percipalle
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, 171 77, Sweden.,Biology Program, New York University Abu Dhabi (NYUAD), P.O. Box 129188, Abu Dhabi, United Arab Emirates.,Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, 106 91, Stockholm, Sweden
| | - Lisa S Westerberg
- Department of Microbiology Tumor and Cell biology, Karolinska Institutet, Stockholm, 171 77, Sweden.
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7
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Nigam SM, Xu S, Kritikou JS, Marosi K, Brodin L, Mattson MP. Exercise and BDNF reduce Aβ production by enhancing α-secretase processing of APP. J Neurochem 2017; 142:286-296. [PMID: 28382744 DOI: 10.1111/jnc.14034] [Citation(s) in RCA: 109] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 03/18/2017] [Accepted: 03/20/2017] [Indexed: 12/23/2022]
Abstract
Alzheimer's disease (AD) is an age-related neurodegenerative disorder characterized by aggregation of toxic forms of amyloid β peptide (Aβ). Treatment strategies have largely been focused on inhibiting the enzymes (β- and γ-secretases) that liberate Aβ from the amyloid precursor protein (APP). While evidence suggests that individuals who exercise regularly are at reduced risk for AD and studies of animal models demonstrate that running can ameliorate brain Aβ pathology and associated cognitive deficits, the underlying mechanisms are unknown. However, considerable evidence suggests that brain-derived neurotrophic factor (BDNF) mediates beneficial effects of exercise on neuroplasticity and cellular stress resistance. Here, we tested the hypothesis that BDNF promotes non-amyloidogenic APP processing. Using a transgenic mouse model of Alzheimer's disease and cultured human neural cells, we demonstrate that exercise and BDNF reduce production of toxic Aβ peptides through a mechanism involving enhanced α-secretase processing of APP. This anti-amyloidogenic APP processing involves subcellular redistribution of α-secretase and an increase in intracellular neuroprotective APP peptides capable of binding and inhibiting β-secretase. Moreover, our results suggest that BDNF's ability to promote neurite outgrowth is primarily exerted through pathways other than APP processing. Exercise and other factors that enhance BDNF signaling may therefore have both therapeutic and prophylactic value in the battle against AD. Read the Editorial Highlight for this article on page 191.
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Affiliation(s)
- Saket M Nigam
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden.,Laboratory of Neurosciences, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, Maryland, USA
| | - Shaohua Xu
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Joanna S Kritikou
- Department of Microbiology Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Krisztina Marosi
- Laboratory of Neurosciences, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, Maryland, USA
| | - Lennart Brodin
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Mark P Mattson
- Laboratory of Neurosciences, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, Maryland, USA
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8
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Han H, Liang X, Ekberg M, Kritikou JS, Brunnström Å, Pelcman B, Matl M, Miao X, Andersson M, Yuan X, Schain F, Parvin S, Melin E, Sjöberg J, Xu D, Westerberg LS, Björkholm M, Claesson HE. Human 15-lipoxygenase-1 is a regulator of dendritic-cell spreading and podosome formation. FASEB J 2016; 31:491-504. [PMID: 27825104 DOI: 10.1096/fj.201600679rr] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 10/04/2016] [Indexed: 01/20/2023]
Abstract
Dendritic cells (DCs) involved in proinflammatory immune responses derive mainly from peripheral monocytes, and the cells subsequently mature and migrate into the inflammatory micromilieu. Here we report that suppressing of 15-lipoxygenase-1 led to a substantial reduction in DC spreading and podosome formation in vitro. The surface expression of CD83 was significantly lower in both sh-15-lipoxygenase-1 (15-LOX-1)-transduced cells and DCs cultivated in the presence of a novel specific 15-LOX-1 inhibitor. The T-cell response against tetanus-pulsed DCs was only affected to a minor extent on inhibition of 15-LOX-1. In contrast, endocytosis and migration ability of DCs were significantly suppressed on 15-LOX-1 inhibition. The expression of 15-LOX-1 in DCs was also demonstrated in affected human skin in atopic and contact dermatitis, showing that the enzyme is indeed expressed in inflammatory diseases in vivo. This study demonstrated that inhibiting 15-LOX-1 led to an impaired podosome formation in DCs, and consequently suppressed antigen uptake and migration capacity. These results indicated that 15-LOX-1 is a potential target for inhibiting the trafficking of DCs to lymphoid organs and inflamed tissues and decreasing the inflammatory response attenuating symptoms of certain immunologic and inflammatory disorders such as dermatitis.-Han, H., Liang, X., Ekberg, M., Kritikou, J. S., Brunnström, Å., Pelcman, B., Matl, M., Miao, X., Andersson, M., Yuan, X., Schain, F., Parvin, S., Melin, E., Sjöberg, J., Xu, D., Westerberg, L. S., Björkholm, M., Claesson, H.-E. Human 15-lipoxygenase-1 is a regulator of dendritic-cell spreading and podosome formation.
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Affiliation(s)
- Hongya Han
- Department of Medicine, Center for Hematology and Regenerative Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden; .,Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Xiuming Liang
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Monica Ekberg
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Joanna S Kritikou
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Åsa Brunnström
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Benjamin Pelcman
- Department of Medicinal Chemistry, Organic Pharmaceutical Chemistry, Uppsala University, Uppsala, Sweden
| | - Maria Matl
- Clinical Immunology and Allergy Unit, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Xinyan Miao
- Clinical Pharmacology Group, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden; and
| | - Margareta Andersson
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Xiaotian Yuan
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Frida Schain
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Selina Parvin
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Eva Melin
- Department of Clinical Sciences, Karolinska Institutet, Danderyd Hospital, Stockholm, Sweden
| | - Jan Sjöberg
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Dawei Xu
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Lisa S Westerberg
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Magnus Björkholm
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Hans-Erik Claesson
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
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9
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Kritikou JS, Dahlberg CIM, Baptista MAP, Wagner AK, Banerjee PP, Gwalani LA, Poli C, Panda SK, Kärre K, Kaech SM, Wermeling F, Andersson J, Orange JS, Brauner H, Westerberg LS. IL-2 in the tumor microenvironment is necessary for Wiskott-Aldrich syndrome protein deficient NK cells to respond to tumors in vivo. Sci Rep 2016; 6:30636. [PMID: 27477778 PMCID: PMC4967920 DOI: 10.1038/srep30636] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 07/08/2016] [Indexed: 11/09/2022] Open
Abstract
To kill target cells, natural killer (NK) cells organize signaling from activating and inhibitory receptors to form a lytic synapse. Wiskott-Aldrich syndrome (WAS) patients have loss-of-function mutations in the actin regulator WASp and suffer from immunodeficiency with increased risk to develop lymphoreticular malignancies. NK cells from WAS patients fail to form lytic synapses, however, the functional outcome in vivo remains unknown. Here, we show that WASp KO NK cells had decreased capacity to degranulate and produce IFNγ upon NKp46 stimulation and this was associated with reduced capacity to kill MHC class I-deficient hematopoietic grafts. Pre-treatment of WASp KO NK cells with IL-2 ex vivo restored degranulation, IFNγ production, and killing of MHC class I negative hematopoietic grafts. Moreover, WASp KO mice controlled growth of A20 lymphoma cells that naturally produced IL-2. WASp KO NK cells showed increased expression of DNAM-1, LAG-3, and KLRG1, all receptors associated with cellular exhaustion and NK cell memory. NK cells isolated from WAS patient spleen cells showed increased expression of DNAM-1 and had low to negative expression of CD56, a phenotype associated with NK cells exhaustion. Finally, in a cohort of neuroblastoma patients we identified a strong correlation between WASp, IL-2, and patient survival.
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Affiliation(s)
- Joanna S Kritikou
- Department of Microbiology Tumor and Cell biology, Karolinska Institutet, Stockholm 171 77, Sweden
| | - Carin I M Dahlberg
- Department of Microbiology Tumor and Cell biology, Karolinska Institutet, Stockholm 171 77, Sweden
| | - Marisa A P Baptista
- Department of Microbiology Tumor and Cell biology, Karolinska Institutet, Stockholm 171 77, Sweden
| | - Arnika K Wagner
- Department of Microbiology Tumor and Cell biology, Karolinska Institutet, Stockholm 171 77, Sweden
| | - Pinaki P Banerjee
- Center for Human Immunobiology, Baylor College of Medicine and Texas Children's Hospital, Houston, TX 77030, USA
| | - Lavesh Amar Gwalani
- Center for Human Immunobiology, Baylor College of Medicine and Texas Children's Hospital, Houston, TX 77030, USA
| | - Cecilia Poli
- Center for Human Immunobiology, Baylor College of Medicine and Texas Children's Hospital, Houston, TX 77030, USA
| | - Sudeepta K Panda
- Department of Medicine Solna, Karolinska Institutet, and Karolinska University Hospital, Stockholm 171 76, Sweden
| | - Klas Kärre
- Department of Microbiology Tumor and Cell biology, Karolinska Institutet, Stockholm 171 77, Sweden
| | - Susan M Kaech
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA.,Howard Hughes Medical Institute, 4000 Jones Bridge Road, Chevy Chase, MD 20815, USA
| | - Fredrik Wermeling
- Department of Medicine Solna, Karolinska Institutet, and Karolinska University Hospital, Stockholm 171 76, Sweden
| | - John Andersson
- Department of Medicine Solna, Karolinska Institutet, and Karolinska University Hospital, Stockholm 171 76, Sweden
| | - Jordan S Orange
- Center for Human Immunobiology, Baylor College of Medicine and Texas Children's Hospital, Houston, TX 77030, USA
| | - Hanna Brauner
- Department of Microbiology Tumor and Cell biology, Karolinska Institutet, Stockholm 171 77, Sweden
| | - Lisa S Westerberg
- Department of Microbiology Tumor and Cell biology, Karolinska Institutet, Stockholm 171 77, Sweden
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