1
|
Yamada Y, Zheng Z, Jad AK, Yamashita M. Lethal and sublethal effects of programmed cell death pathways on hematopoietic stem cells. Exp Hematol 2024; 134:104214. [PMID: 38582294 DOI: 10.1016/j.exphem.2024.104214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/26/2024] [Accepted: 04/01/2024] [Indexed: 04/08/2024]
Abstract
Programmed cell death is an evolutionally conserved cellular process in multicellular organisms that eliminates unnecessary or rogue cells during development, infection, and carcinogenesis. Hematopoietic stem cells (HSCs) are a rare, self-renewing, and multipotent cell population necessary for the establishment and regeneration of the hematopoietic system. Counterintuitively, key components necessary for programmed cell death induction are abundantly expressed in long-lived HSCs, which often survive myeloablative stress by engaging a prosurvival response that counteracts cell death-inducing stimuli. Although HSCs are well known for their apoptosis resistance, recent studies have revealed their unique vulnerability to certain types of programmed necrosis, such as necroptosis and ferroptosis. Moreover, emerging evidence has shown that programmed cell death pathways can be sublethally activated to cause nonlethal consequences such as innate immune response, organelle dysfunction, and mutagenesis. In this review, we summarized recent findings on how divergent cell death programs are molecularly regulated in HSCs. We then discussed potential side effects caused by sublethal activation of programmed cell death pathways on the functionality of surviving HSCs.
Collapse
Affiliation(s)
- Yuta Yamada
- Division of Stem Cell and Molecular Medicine, Centre for Stem Cell Biology and Regenerative Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Zhiqian Zheng
- Division of Stem Cell and Molecular Medicine, Centre for Stem Cell Biology and Regenerative Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan; Division of Experimental Hematology, Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Alaa K Jad
- Division of Stem Cell and Molecular Medicine, Centre for Stem Cell Biology and Regenerative Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Masayuki Yamashita
- Division of Stem Cell and Molecular Medicine, Centre for Stem Cell Biology and Regenerative Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan; Division of Experimental Hematology, Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, USA.
| |
Collapse
|
2
|
Rodriguez-Meira A, Norfo R, Wen S, Chédeville AL, Rahman H, O'Sullivan J, Wang G, Louka E, Kretzschmar WW, Paterson A, Brierley C, Martin JE, Demeule C, Bashton M, Sousos N, Moralli D, Subha Meem L, Carrelha J, Wu B, Hamblin A, Guermouche H, Pasquier F, Marzac C, Girodon F, Vainchenker W, Drummond M, Harrison C, Chapman JR, Plo I, Jacobsen SEW, Psaila B, Thongjuea S, Antony-Debré I, Mead AJ. Single-cell multi-omics identifies chronic inflammation as a driver of TP53-mutant leukemic evolution. Nat Genet 2023; 55:1531-1541. [PMID: 37666991 PMCID: PMC10484789 DOI: 10.1038/s41588-023-01480-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 07/20/2023] [Indexed: 09/06/2023]
Abstract
Understanding the genetic and nongenetic determinants of tumor protein 53 (TP53)-mutation-driven clonal evolution and subsequent transformation is a crucial step toward the design of rational therapeutic strategies. Here we carry out allelic resolution single-cell multi-omic analysis of hematopoietic stem/progenitor cells (HSPCs) from patients with a myeloproliferative neoplasm who transform to TP53-mutant secondary acute myeloid leukemia (sAML). All patients showed dominant TP53 'multihit' HSPC clones at transformation, with a leukemia stem cell transcriptional signature strongly predictive of adverse outcomes in independent cohorts, across both TP53-mutant and wild-type (WT) AML. Through analysis of serial samples, antecedent TP53-heterozygous clones and in vivo perturbations, we demonstrate a hitherto unrecognized effect of chronic inflammation, which suppressed TP53 WT HSPCs while enhancing the fitness advantage of TP53-mutant cells and promoted genetic evolution. Our findings will facilitate the development of risk-stratification, early detection and treatment strategies for TP53-mutant leukemia, and are of broad relevance to other cancer types.
Collapse
Affiliation(s)
- Alba Rodriguez-Meira
- Haematopoietic Stem Cell Biology Laboratory, Medical Research Council Molecular Haematology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK.
- NIHR Biomedical Research Centre, University of Oxford, Oxford, UK.
- Department of Cancer Biology, Dana Farber Cancer Institute, Boston, MA, USA.
- Broad Institute, Cambridge, MA, USA.
| | - Ruggiero Norfo
- Haematopoietic Stem Cell Biology Laboratory, Medical Research Council Molecular Haematology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- NIHR Biomedical Research Centre, University of Oxford, Oxford, UK
- Centre for Regenerative Medicine 'Stefano Ferrari', Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Sean Wen
- Haematopoietic Stem Cell Biology Laboratory, Medical Research Council Molecular Haematology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- NIHR Biomedical Research Centre, University of Oxford, Oxford, UK
- Medical Research Council Centre for Computational Biology, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Agathe L Chédeville
- INSERM, UMR 1287, Villejuif, France
- Gustave Roussy, Villejuif, France
- Université Paris Saclay, Gif-sur-Yvette, France
- Université Paris Cité, Paris, France
| | - Haseeb Rahman
- Haematopoietic Stem Cell Biology Laboratory, Medical Research Council Molecular Haematology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- NIHR Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Jennifer O'Sullivan
- Haematopoietic Stem Cell Biology Laboratory, Medical Research Council Molecular Haematology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- NIHR Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Guanlin Wang
- Haematopoietic Stem Cell Biology Laboratory, Medical Research Council Molecular Haematology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- NIHR Biomedical Research Centre, University of Oxford, Oxford, UK
- Medical Research Council Centre for Computational Biology, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Eleni Louka
- Haematopoietic Stem Cell Biology Laboratory, Medical Research Council Molecular Haematology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- NIHR Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Warren W Kretzschmar
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
- Karolinska University Hospital, Stockholm, Sweden
- Center for Hematology and Regenerative Medicine, Department of Medicine Huddinge, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Aimee Paterson
- Haematopoietic Stem Cell Biology Laboratory, Medical Research Council Molecular Haematology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- NIHR Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Charlotte Brierley
- Haematopoietic Stem Cell Biology Laboratory, Medical Research Council Molecular Haematology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- NIHR Biomedical Research Centre, University of Oxford, Oxford, UK
- Center for Hematological Malignancies, Memorial Sloan Kettering Cancer Center, New York City, NY, USA
| | - Jean-Edouard Martin
- INSERM, UMR 1287, Villejuif, France
- Gustave Roussy, Villejuif, France
- Université Paris Saclay, Gif-sur-Yvette, France
- Université Paris Cité, Paris, France
| | | | - Matthew Bashton
- The Hub for Biotechnology in the Built Environment, Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, UK
| | - Nikolaos Sousos
- Haematopoietic Stem Cell Biology Laboratory, Medical Research Council Molecular Haematology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- NIHR Biomedical Research Centre, University of Oxford, Oxford, UK
| | | | | | - Joana Carrelha
- Haematopoietic Stem Cell Biology Laboratory, Medical Research Council Molecular Haematology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Bishan Wu
- Haematopoietic Stem Cell Biology Laboratory, Medical Research Council Molecular Haematology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Angela Hamblin
- NIHR Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Helene Guermouche
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, AP-HP, Hôpital Saint-Antoine, Service d'hématologie biologique, Paris, France
| | - Florence Pasquier
- INSERM, UMR 1287, Villejuif, France
- Gustave Roussy, Villejuif, France
- Université Paris Saclay, Gif-sur-Yvette, France
- Département d'Hématologie, Gustave Roussy, Villejuif, France
| | - Christophe Marzac
- INSERM, UMR 1287, Villejuif, France
- Gustave Roussy, Villejuif, France
- Université Paris Saclay, Gif-sur-Yvette, France
- Laboratoire d'Immuno-Hématologie, Gustave Roussy, Villejuif, France
| | - François Girodon
- Laboratoire d'Hématologie, CHU Dijon, Dijon, France
- INSERM, UMR 1231, Centre de Recherche, Dijon, France
| | - William Vainchenker
- INSERM, UMR 1287, Villejuif, France
- Gustave Roussy, Villejuif, France
- Université Paris Saclay, Gif-sur-Yvette, France
| | | | | | - J Ross Chapman
- Genome Integrity Laboratory, Medical Research Council Molecular Haematology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Isabelle Plo
- INSERM, UMR 1287, Villejuif, France
- Gustave Roussy, Villejuif, France
- Université Paris Saclay, Gif-sur-Yvette, France
| | - Sten Eirik W Jacobsen
- Haematopoietic Stem Cell Biology Laboratory, Medical Research Council Molecular Haematology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
- Karolinska University Hospital, Stockholm, Sweden
- Center for Hematology and Regenerative Medicine, Department of Medicine Huddinge, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Bethan Psaila
- Haematopoietic Stem Cell Biology Laboratory, Medical Research Council Molecular Haematology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- NIHR Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Supat Thongjuea
- Medical Research Council Centre for Computational Biology, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Iléana Antony-Debré
- INSERM, UMR 1287, Villejuif, France.
- Gustave Roussy, Villejuif, France.
- Université Paris Saclay, Gif-sur-Yvette, France.
| | - Adam J Mead
- Haematopoietic Stem Cell Biology Laboratory, Medical Research Council Molecular Haematology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK.
- NIHR Biomedical Research Centre, University of Oxford, Oxford, UK.
| |
Collapse
|
3
|
Wu Y, Hao S, Xu X, Dong G, Ouyang W, Liu C, Sun HX. A novel computational method enables RNA editome profiling during human hematopoiesis from scRNA-seq data. Sci Rep 2023; 13:10335. [PMID: 37365211 DOI: 10.1038/s41598-023-37325-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 06/20/2023] [Indexed: 06/28/2023] Open
Abstract
RNA editing is a post-transcriptional modification with a cell-specific manner and important biological implications. Although single-cell RNA-seq (scRNA-seq) is an effective method for studying cellular heterogeneity, it is difficult to detect and study RNA editing events from scRNA-seq data because of the low sequencing coverage. To overcome this, we develop a computational method to systematically identify RNA editing sites of cell types from scRNA-seq data. To demonstrate its effectiveness, we apply it to scRNA-seq data of human hematopoietic stem/progenitor cells (HSPCs) with an annotated lineage differentiation relationship according to previous research and study the impacts of RNA editing on hematopoiesis. The dynamic editing patterns reveal the relevance of RNA editing on different HSPCs. For example, four microRNA (miRNA) target sites on 3' UTR of EIF2AK2 are edited across all HSPC populations, which may abolish the miRNA-mediated inhibition of EIF2AK2. Elevated EIF2AK2 may thus activate the integrated stress response (ISR) pathway to initiate global translational attenuation as a protective mechanism to maintain cellular homeostasis during HSPCs' differentiation. Besides, our findings also indicate that RNA editing plays an essential role in the coordination of lineage commitment and self-renewal of hematopoietic stem cells (HSCs). Taken together, we demonstrate the capacity of scRNA-seq data to exploit RNA editing events of cell types, and find that RNA editing may exert multiple modules of regulation in hematopoietic processes.
Collapse
Affiliation(s)
- Yan Wu
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
- BGI-Shenzhen, Shenzhen, 518083, China
- BGI-Beijing, Beijing, 102601, China
| | - Shijie Hao
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
- BGI-Shenzhen, Shenzhen, 518083, China
| | - Xiaojing Xu
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
- BGI-Shenzhen, Shenzhen, 518083, China
- BGI-Beijing, Beijing, 102601, China
| | - Guoyi Dong
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
- BGI-Shenzhen, Shenzhen, 518083, China
| | | | - Chao Liu
- BGI-Shenzhen, Shenzhen, 518083, China
| | - Hai-Xi Sun
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.
- BGI-Shenzhen, Shenzhen, 518083, China.
- BGI-Beijing, Beijing, 102601, China.
| |
Collapse
|
4
|
RNPS1 inhibits excessive tumor necrosis factor/tumor necrosis factor receptor signaling to support hematopoiesis in mice. Proc Natl Acad Sci U S A 2022; 119:e2200128119. [PMID: 35482923 DOI: 10.1073/pnas.2200128119] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
SignificanceMessenger RNA (mRNA) splicing is fundamental to protein expression in mammals. Homozygous deletion of single protein components of the splicing machinery or its regulatory factors is embryonic lethal. However, through forward genetic screening in mice, we identified a viable hypomorphic missense mutation of the splicing regulator RNPS1. Homozygous mutant mice displayed altered immune cell development due to excessive tumor necrosis factor (TNF)-dependent immune cell apoptosis. Splicing was impaired in CD8+ T cells and hematopoietic stem cells from RNPS1 mutant mice. TNF knockout rescued hematopoiesis and dramatically reduced splicing defects in RNPS1 hematopoietic cells, demonstrating a surprising link between elevated TNF and defects in splicing caused by RNPS1 deficiency.
Collapse
|
5
|
Gogoleva VS, Atretkhany KSN, Dygay AP, Yurakova TR, Drutskaya MS, Nedospasov SA. Current Perspectives on the Role of TNF in Hematopoiesis Using Mice With Humanization of TNF/LT System. Front Immunol 2021; 12:661900. [PMID: 34054827 PMCID: PMC8155636 DOI: 10.3389/fimmu.2021.661900] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 04/19/2021] [Indexed: 11/24/2022] Open
Abstract
TNF is a multifunctional cytokine with its key functions attributed to inflammation, secondary lymphoid tissue organogenesis and immune regulation. However, it is also a physiological regulator of hematopoiesis and is involved in development and homeostatic maintenance of various organs and tissues. Somewhat unexpectedly, the most important practical application of TNF biology in medicine is anti-TNF therapy in several autoimmune diseases. With increased number of patients undergoing treatment with TNF inhibitors and concerns regarding possible adverse effects of systemic cytokine blockade, the interest in using humanized mouse models to study the efficacy and safety of TNF-targeting biologics in vivo is justified. This Perspective discusses the main functions of TNF and its two receptors, TNFR1 and TNFR2, in steady state, as well as in emergency hematopoiesis. It also provides a comparative overview of existing mouse lines with humanization of TNF/TNFR system. These genetically engineered mice allow us to study TNF signaling cascades in the hematopoietic compartment in the context of various experimental disease models and for evaluating the effects of various human TNF inhibitors on hematopoiesis and other physiological processes.
Collapse
Affiliation(s)
- Violetta S Gogoleva
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia.,Department of Immunobiology and Biomedicine, Sirius University of Science and Technology, Sirius, Russia
| | - Kamar-Sulu N Atretkhany
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Arina P Dygay
- Department of Immunobiology and Biomedicine, Sirius University of Science and Technology, Sirius, Russia.,Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia.,Department of Immunology, Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Taisiya R Yurakova
- Department of Immunobiology and Biomedicine, Sirius University of Science and Technology, Sirius, Russia.,Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia.,Department of Immunology, Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Marina S Drutskaya
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia.,Department of Immunobiology and Biomedicine, Sirius University of Science and Technology, Sirius, Russia
| | - Sergei A Nedospasov
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia.,Department of Immunobiology and Biomedicine, Sirius University of Science and Technology, Sirius, Russia.,Department of Immunology, Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia
| |
Collapse
|
6
|
Jahandideh B, Derakhshani M, Abbaszadeh H, Akbar Movassaghpour A, Mehdizadeh A, Talebi M, Yousefi M. The pro-Inflammatory cytokines effects on mobilization, self-renewal and differentiation of hematopoietic stem cells. Hum Immunol 2020; 81:206-217. [DOI: 10.1016/j.humimm.2020.01.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 12/29/2019] [Accepted: 01/13/2020] [Indexed: 02/08/2023]
|
7
|
A role for macrophages in hematopoiesis in the embryonic head. Blood 2019; 134:1929-1940. [PMID: 31697805 DOI: 10.1182/blood.2018881243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 09/21/2019] [Indexed: 12/11/2022] Open
Abstract
Along with the aorta-gonad-mesonephros region, the head is a site of hematopoietic stem and progenitor cell (HS/PC) development in the mouse embryo. Macrophages are present in both these embryonic hemogenic sites, and recent studies indicate a functional interaction of macrophages with hematopoietic cells as they are generated in the aorta. Whereas brain macrophages or "microglia" are known to affect neuronal patterning and vascular circuitry in the embryonic brain, it is unknown whether macrophages play a role in head hematopoiesis. Here, we characterize head macrophages and examine whether they affect the HS/PC output of the hindbrain-branchial arch (HBA) region of the mouse embryo. We show that HBA macrophages are CD45+F4/80+CD11b+Gr1- and express the macrophage-specific Csf1r-GFP reporter. In the HBA of chemokine receptor-deficient (Cx3cr1-/-) embryos, a reduction in erythropoiesis is concomitant with a decrease in HBA macrophage percentages. In cocultures, we show that head macrophages boost hematopoietic progenitor cell numbers from HBA endothelial cells > twofold, and that the proinflammatory factor tumor necrosis factor-α is produced by head macrophages and influences HBA hematopoiesis in vitro. Taken together, head macrophages play a positive role in HBA erythropoiesis and HS/PC expansion and/or maturation, acting as microenvironmental cellular regulators in hematopoietic development.
Collapse
|
8
|
Senyuk V, Patel P, Mahmud N, Rondelli D. Blockade of TNFα to Improve Human CD34+ Cell Repopulating Activity in Allogeneic Stem Cell Transplantation. Front Immunol 2019; 9:3186. [PMID: 30723481 PMCID: PMC6349828 DOI: 10.3389/fimmu.2018.03186] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 12/31/2018] [Indexed: 01/29/2023] Open
Abstract
Early release of TNFα after hematopoietic stem cell transplantation (HSCT) correlates with development of acute graft-vs.-host disease (GVHD). Here we tested the effect of TNFα and alloreactive T cells on early hematopoietic HSC genotype and function. Addition of TNFα (10 ng/ml) in liquid cultures with CD34+ cells for 6–72 h resulted in the downregulation of genes associated with stem cell activity, such as DNMT3A, DNMT3B, TET1, TET2, SOX2, NANOG, and OCT4, whereas no significant effect was observed on DNMT1 and GATA2 expression. These findings were reversed by using an anti-TNFα antibody. Similar gene downregulation was observed when CD34+ cells were co-cultured with alloreactive T cells CD34+ cells for 48–72 h, and this effect was partially prevented by rapamycin and an anti-TNFα antibody. CD34+ cells pre-incubated with TNFα for 48 h and transplanted in irradiated NOD-SCID ɤnull (NSG) mice showed a reduced myeloid engraftment compared to control mice. By using a xenograft model recently developed in our lab, we co-transplanted CD34+ cells and allogeneic T lymphocytes at 1:0.1 ratio in one group that also received etanercept (TNFα inhibitor) at 100 μg intra-peritoneum (i.p.) on days −1,+1,+3,+5 post-HSCT, and in the control group. At 6 weeks post-transplant, mice that received etanercept had a significantly higher number of marrow huCD45+CD34+CD38- early stem cells (p = 0.03) and a reduced number of huCD45+CD3+ splenic T cells (p = 0.04) compared to controls. The repopulating activity of marrow cells from mice treated with etanercept vs. controls was tested in secondary transplants. Although the overall engraftment was similar in the two groups, CD34+ cells isolated from recipients of marrow from the etanercept group showed a significantly greater expression of stem cell-associated genes and a higher number of CD45+CD34+CD38- cells than in controls (p = 0.03). Our findings suggest that early TNFα increase post-transplant can affect long-term stem cell engraftment, and that blockade of TNFα early after transplant may limit a cytokine-mediated suppressive effect on repopulating stem cell function.
Collapse
Affiliation(s)
- Vitalyi Senyuk
- Division of Hematology/Oncology, Department of Medicine and UI Cancer Center, University of Illinois at Chicago, Chicago, IL, United States
| | - Pritesh Patel
- Division of Hematology/Oncology, Department of Medicine and UI Cancer Center, University of Illinois at Chicago, Chicago, IL, United States
| | - Nadim Mahmud
- Division of Hematology/Oncology, Department of Medicine and UI Cancer Center, University of Illinois at Chicago, Chicago, IL, United States
| | - Damiano Rondelli
- Division of Hematology/Oncology, Department of Medicine and UI Cancer Center, University of Illinois at Chicago, Chicago, IL, United States
| |
Collapse
|
9
|
Al Sayed MF, Amrein MA, Bührer ED, Huguenin AL, Radpour R, Riether C, Ochsenbein AF. T-cell–Secreted TNFα Induces Emergency Myelopoiesis and Myeloid-Derived Suppressor Cell Differentiation in Cancer. Cancer Res 2018; 79:346-359. [DOI: 10.1158/0008-5472.can-17-3026] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 08/29/2018] [Accepted: 10/19/2018] [Indexed: 11/16/2022]
|
10
|
Wang W, Fujii H, Kim HJ, Hermans K, Usenko T, Xie S, Luo ZJ, Ma J, Celso CL, Dick JE, Schroeder T, Krueger J, Wall D, Egeler RM, Zandstra PW. Enhanced human hematopoietic stem and progenitor cell engraftment by blocking donor T cell-mediated TNFα signaling. Sci Transl Med 2018; 9:9/421/eaag3214. [PMID: 29263228 DOI: 10.1126/scitranslmed.aag3214] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 07/21/2017] [Accepted: 10/17/2017] [Indexed: 12/13/2022]
Abstract
Allogeneic hematopoietic stem cell transplantation (HSCT) is a curative therapy, but the large number of HSCs required limits its widespread use. Host conditioning and donor cell composition are known to affect HSCT outcomes. However, the specific role that the posttransplantation signaling environment plays in donor HSC fate is poorly understood. To mimic clinical HSCT, we injected human umbilical cord blood (UCB) cells at different doses and compositions into immunodeficient NOD/SCID/IL-2Rgc-null (NSG) mice. Surprisingly, higher UCB cell doses inversely correlated with stem and progenitor cell engraftment. This observation was attributable to increased donor cell-derived inflammatory signals. Donor T cell-derived tumor necrosis factor-α (TNFα) was specifically found to directly impair the survival and division of transplanted HSCs and progenitor cells. Neutralizing donor T cell-derived TNFα in vivo increased short-term stem and progenitor cell engraftment, accelerated hematopoietic recovery, and altered donor immune cell compositions. This direct effect of TNFα on transplanted cells could be decoupled from the indirect effect of alleviating graft-versus-host disease (GVHD) by interleukin-6 (IL-6) blockade. Our study demonstrates that donor immune cell-derived inflammatory signals directly influence HSC fate, and provides new clinically relevant strategies to improve engraftment efficiency during HSCT.
Collapse
Affiliation(s)
- Weijia Wang
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 3E1, Canada.,Department of Biosystems Science and Engineering, Eidgenössische Technische Hochschule (ETH) Zürich, Basel 4058, Switzerland
| | - Hisaki Fujii
- Division of Haematology and Oncology, Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
| | - Hye Jin Kim
- Division of Haematology and Oncology, Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
| | - Karin Hermans
- Division of Haematology and Oncology, Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
| | - Tatiana Usenko
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 3E1, Canada
| | - Stephanie Xie
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario M5G 1L7, Canada
| | - Zhi-Juan Luo
- Division of Haematology and Oncology, Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
| | - Jennifer Ma
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 3E1, Canada
| | - Cristina Lo Celso
- Department of Life Sciences, Imperial College London, London SW7 2AZ, UK
| | - John E Dick
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario M5G 1L7, Canada.,Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5G 1L7, Canada
| | - Timm Schroeder
- Department of Biosystems Science and Engineering, Eidgenössische Technische Hochschule (ETH) Zürich, Basel 4058, Switzerland
| | - Joerg Krueger
- Division of Haematology and Oncology, Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
| | - Donna Wall
- Division of Haematology and Oncology, Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
| | - R Maarten Egeler
- Division of Haematology and Oncology, Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
| | - Peter W Zandstra
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 3E1, Canada. .,Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3E5, Canada.,Terrence Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E1, Canada.,Medicine by Design-A Canada First Research Excellence Fund program, Toronto, Ontario M5G 1M1, Canada
| |
Collapse
|
11
|
Autocrine Tnf signaling favors malignant cells in myelofibrosis in a Tnfr2-dependent fashion. Leukemia 2018; 32:2399-2411. [PMID: 29749399 PMCID: PMC6224399 DOI: 10.1038/s41375-018-0131-z] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/23/2018] [Accepted: 03/29/2018] [Indexed: 01/15/2023]
Abstract
Tumor necrosis factor alpha (TNF) is increased in myelofibrosis (MF) and promotes survival of malignant over normal cells. The mechanisms altering TNF responsiveness in MF cells are unknown. We show that the proportion of marrow (BM) cells expressing TNF is increased in MF compared to controls, with the largest differential in primitive cells. Blockade of TNF receptor 2 (TNFR2), but not TNFR1, selectively inhibited colony formation by MF CD34+ and mouse JAK2V617F progenitor cells. Microarray of mouse MPN revealed reduced expression of X-linked inhibitor of apoptosis (Xiap) and mitogen-activated protein kinase 8 (Mapk8) in JAK2V617F relative to JAK2WT cells, which were normalized by TNFR2 but not TNFR1 blockade. XIAP and MAPK8 were also reduced in MF CD34+ cells compared to normal BM, and their ectopic expression induced apoptosis. Unlike XIAP, expression of cellular IAP (cIAP) protein was increased in MF CD34+ cells. Consistent with cIAP's role in NF-κB activation, TNF-induced NF-κB activity was higher in MF vs. normal BM CD34+ cells. This suggests that JAK2V617F reprograms TNF response toward survival by downregulating XIAP and MAPK8 through TNFR2. Our results reveal an unexpected pro-apoptotic role for XIAP in MF and identify TNFR2 as a key mediator of TNF-induced clonal expansion.
Collapse
|
12
|
In vivo selection with lentiviral expression of Bcl2 T69A/S70A/S87A mutant in hematopoietic stem cell-transplanted mice. Gene Ther 2018. [PMID: 29523881 DOI: 10.1038/s41434-018-0008-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Current in vivo selections for hematopoietic stem cell (HSC)-based gene therapy are drug dependent and not without risk of cytotoxicity or tumorigenesis. We developed a new in vivo selection system with the non-phosphorylatable Bcl2 mutant Bcl2T69A/S70A/S87A (Bcl2AAA), which makes in vivo selection drug independent and without risk of cytotoxicity or tumorigenesis. We demonstrated in HSC-transplanted mice that Bcl2AAA facilitated efficient in vivo selection in the absence of any exogenously applied drugs under both myeloablative and non-myeloablative conditioning. In mice transplanted with retrovirally transduced sca-1-positive bone marrow cells, the marked cell level increased from 26.38% of input transduced cells to 92.61 ± 0.95% of peripheral blood cells for myeloablative transplantation or to 37.82 ± 6.35% for non-myeloablative transplantation 6 months after transplantation. Bcl2AAA did not induce tumorigenesis and does not influence hematopoiesis and the function of the reconstituted blood system. However, the high-level constitutive expression of Bcl2AAA mediated by retroviral vector induced exhaustion of the marked cells after tertiary transplantation. Fortunately, low-level constitutive expression of Bcl2AAA driven by an internal promoter in lentiviral vector could both maintain the marked cell level (24.13 ± 5.27%, 27.17 ± 5.51%, 24.33 ± 5.08%, and 22.07 ± 4.44% for primary, secondary, tertiary, and quaternary recipients) and avoid the exhaustion of the marked cells even in quaternary recipients. Importantly, the low-level constitutive expression of Bcl2AAA did not induce tumorigenesis. Thus, the in vivo selection employing the low-level constitutive expression of Bcl2AAA provides a general platform which is relevant for widespread applications of gene therapy.
Collapse
|
13
|
Ishida T, Suzuki S, Lai CY, Yamazaki S, Kakuta S, Iwakura Y, Nojima M, Takeuchi Y, Higashihara M, Nakauchi H, Otsu M. Pre-Transplantation Blockade of TNF-α-Mediated Oxygen Species Accumulation Protects Hematopoietic Stem Cells. Stem Cells 2016; 35:989-1002. [PMID: 27753160 DOI: 10.1002/stem.2524] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 09/07/2016] [Accepted: 10/04/2016] [Indexed: 12/31/2022]
Abstract
Hematopoietic stem cell (HSC) transplantation (HSCT) for malignancy requires toxic pre-conditioning to maximize anti-tumor effects and donor-HSC engraftment. While this induces bone marrow (BM)-localized inflammation, how this BM environmental change affects transplanted HSCs in vivo remains largely unknown. We here report that, depending on interval between irradiation and HSCT, residence within lethally irradiated recipient BM compromises donor-HSC reconstitution ability. Both in vivo and in vitro we demonstrate that, among inflammatory cytokines, TNF-α plays a role in HSC damage: TNF-α stimulation leads to accumulation of reactive oxygen species (ROS) in highly purified hematopoietic stem/progenitor cells (HSCs/HSPCs). Transplantation of flow-cytometry-sorted murine HSCs reveals damaging effects of accumulated ROS on HSCs. Short-term incubation either with an specific inhibitor of tumor necrosis factor receptor 1 signaling or an antioxidant N-acetyl-L-cysteine (NAC) prevents TNF-α-mediated ROS accumulation in HSCs. Importantly, pre-transplantation exposure to NAC successfully demonstrats protective effects in inflammatory BM on graft-HSCs, exhibiting better reconstitution capability than that of nonprotected control grafts. We thus suggest that in vivo protection of graft-HSCs from BM inflammation is a feasible and attractive approach, which may lead to improved hematopoietic reconstitution kinetics in transplantation with myeloablative conditioning that inevitably causes inflammation in recipient BM. Stem Cells 2017;35:989-1002.
Collapse
Affiliation(s)
- Takashi Ishida
- Department of Hematology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan.,Division of Stem Cell Processing/Stem Cell Bank, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, University of Tokyo, Tokyo, Japan.,Division of Stem Cell Therapy, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Sachie Suzuki
- Department of Hematology, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Chen-Yi Lai
- Division of Stem Cell Processing/Stem Cell Bank, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Satoshi Yamazaki
- Division of Stem Cell Therapy, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Shigeru Kakuta
- Department of Biomedical Science, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan
| | - Yoichiro Iwakura
- Center for Experimental Animal Models, Institute for Medical Sciences, Tokyo University of Science, Tokyo, Japan
| | - Masanori Nojima
- Division of Advanced Medicine Promotion, Advanced Clinical Research Center, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Yasuo Takeuchi
- Department of Nephrology in Internal Medicine, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Masaaki Higashihara
- Department of Hematology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Hiromitsu Nakauchi
- Division of Stem Cell Therapy, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, University of Tokyo, Tokyo, Japan.,Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Makoto Otsu
- Division of Stem Cell Processing/Stem Cell Bank, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| |
Collapse
|
14
|
Masouridi-Levrat S, Simonetta F, Chalandon Y. Immunological Basis of Bone Marrow Failure after Allogeneic Hematopoietic Stem Cell Transplantation. Front Immunol 2016; 7:362. [PMID: 27695456 PMCID: PMC5025429 DOI: 10.3389/fimmu.2016.00362] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 09/02/2016] [Indexed: 12/12/2022] Open
Abstract
Bone marrow failure (BMF) syndromes are severe complications of allogeneic hematopoietic stem cell transplantation (allo-HSCT). In this paper, we distinguish two different entities, the graft failure (GF) and the poor graft function (PGF), and we review the current understanding of the interactions between the immune and hematopoietic compartments in these conditions. We first discuss how GF occurs as the result of classical alloreactive immune responses mediated by residual host cellular and humoral immunity persisting after conditioning and prevented by host and donor regulatory T cells. We next summarize the current knowledge about the contribution of inflammatory mediators to the development of PGF. In situations of chronic inflammation complicating allo-HSCT, such as graft-versus-host disease or infections, PGF seems to be essentially the result of a sustained impairment of hematopoietic stem cells (HSC) self-renewal and proliferation caused by inflammatory mediators, such as interferon-γ (IFN-γ) and tumor necrosis factor-α, and of induction of apoptosis through the Fas/Fas ligand pathway. Interestingly, the production of inflammatory molecules leads to a non-MHC restricted, bystander inhibition of hematopoiesis, therefore, representing a promising target for immunological interventions. Finally, we discuss immune-mediated impairment of bone marrow microenvironment as a potential mechanism hampering hematopoietic recovery. Better understanding of immunological mechanisms responsible for BMF syndromes after allo-HSCT may lead to the development of more efficient immunotherapeutic interventions.
Collapse
Affiliation(s)
- Stavroula Masouridi-Levrat
- Division of Hematology, Department of Medical Specialties, Faculty of Medicine, Geneva University Hospitals, University of Geneva , Geneva , Switzerland
| | - Federico Simonetta
- Division of Hematology, Department of Medical Specialties, Faculty of Medicine, Geneva University Hospitals, University of Geneva , Geneva , Switzerland
| | - Yves Chalandon
- Division of Hematology, Department of Medical Specialties, Faculty of Medicine, Geneva University Hospitals, University of Geneva , Geneva , Switzerland
| |
Collapse
|
15
|
Green MMB, Chao N, Chhabra S, Corbet K, Gasparetto C, Horwitz A, Li Z, Venkata JK, Long G, Mims A, Rizzieri D, Sarantopoulos S, Stuart R, Sung AD, Sullivan KM, Costa L, Horwitz M, Kang Y. Plerixafor (a CXCR4 antagonist) following myeloablative allogeneic hematopoietic stem cell transplantation enhances hematopoietic recovery. J Hematol Oncol 2016; 9:71. [PMID: 27535663 PMCID: PMC4989381 DOI: 10.1186/s13045-016-0301-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Accepted: 08/09/2016] [Indexed: 12/17/2022] Open
Abstract
Background The binding of CXCR4 with its ligand (stromal-derived factor-1) maintains hematopoietic stem/progenitor cells (HSPCs) in a quiescent state. We hypothesized that blocking CXCR4/SDF-1 interaction after hematopoietic stem cell transplantation (HSCT) promotes hematopoiesis by inducing HSC proliferation. Methods We conducted a phase I/II trial of plerixafor on hematopoietic cell recovery following myeloablative allogeneic HSCT. Patients with hematologic malignancies receiving myeloablative conditioning were enrolled. Plerixafor 240 μg/kg was administered subcutaneously every other day beginning day +2 until day +21 or until neutrophil recovery. The primary efficacy endpoints of the study were time to absolute neutrophil count >500/μl and platelet count >20,000/μl. The cumulative incidence of neutrophil and platelet engraftment of the study cohort was compared to that of a cohort of 95 allogeneic peripheral blood stem cell transplant recipients treated during the same period of time and who received similar conditioning and graft-versus-host disease prophylaxis. Results Thirty patients received plerixafor following peripheral blood stem cell (n = 28) (PBSC) or bone marrow (n = 2) transplantation. Adverse events attributable to plerixafor were mild and indistinguishable from effects of conditioning. The kinetics of neutrophil and platelet engraftment, as demonstrated by cumulative incidence, from the 28 study subjects receiving PBSC showed faster neutrophil (p = 0.04) and platelet recovery >20 K (p = 0.04) compared to the controls. Conclusions Our study demonstrated that plerixafor can be given safely following myeloablative HSCT. It provides proof of principle that blocking CXCR4 after HSCT enhances hematopoietic recovery. Larger, confirmatory studies in other settings are warranted. Trial registration ClinicalTrials.gov NCT01280955
Collapse
Affiliation(s)
- Michael M B Green
- Division of Hematologic Malignancies and Cellular Therapy, Duke Cancer Institute, Duke University Medical Center, Durham, NC, USA
| | - Nelson Chao
- Division of Hematologic Malignancies and Cellular Therapy, Duke Cancer Institute, Duke University Medical Center, Durham, NC, USA
| | - Saurabh Chhabra
- Division of Hematology/Oncology, Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, USA
| | - Kelly Corbet
- Division of Hematologic Malignancies and Cellular Therapy, Duke Cancer Institute, Duke University Medical Center, Durham, NC, USA
| | - Cristina Gasparetto
- Division of Hematologic Malignancies and Cellular Therapy, Duke Cancer Institute, Duke University Medical Center, Durham, NC, USA
| | - Ari Horwitz
- Division of Hematologic Malignancies and Cellular Therapy, Duke Cancer Institute, Duke University Medical Center, Durham, NC, USA
| | - Zhiguo Li
- Duke University Department of Biostatistics and Bioinformatics, Durham, NC, USA
| | - Jagadish Kummetha Venkata
- Division of Hematology/Oncology, Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, USA
| | - Gwynn Long
- Division of Hematologic Malignancies and Cellular Therapy, Duke Cancer Institute, Duke University Medical Center, Durham, NC, USA
| | - Alice Mims
- Division of Hematology, Department of Medicine, The Ohio State University, Columbus, OH, USA
| | - David Rizzieri
- Division of Hematologic Malignancies and Cellular Therapy, Duke Cancer Institute, Duke University Medical Center, Durham, NC, USA
| | - Stefanie Sarantopoulos
- Division of Hematologic Malignancies and Cellular Therapy, Duke Cancer Institute, Duke University Medical Center, Durham, NC, USA
| | - Robert Stuart
- Division of Hematology/Oncology, Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, USA
| | - Anthony D Sung
- Division of Hematologic Malignancies and Cellular Therapy, Duke Cancer Institute, Duke University Medical Center, Durham, NC, USA
| | - Keith M Sullivan
- Division of Hematologic Malignancies and Cellular Therapy, Duke Cancer Institute, Duke University Medical Center, Durham, NC, USA
| | - Luciano Costa
- Division of Hematology/Oncology, Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, USA
| | - Mitchell Horwitz
- Division of Hematologic Malignancies and Cellular Therapy, Duke Cancer Institute, Duke University Medical Center, Durham, NC, USA
| | - Yubin Kang
- Division of Hematologic Malignancies and Cellular Therapy, Duke Cancer Institute, Duke University Medical Center, Durham, NC, USA. .,Division of Hematological Malignancies and Cellular Therapy, Duke University Medical Center, Box 3961, 2400 Pratt Street, Durham, NC, 27710, USA.
| |
Collapse
|
16
|
Kobayashi H, Suda T, Takubo K. How hematopoietic stem/progenitors and their niche sense and respond to infectious stress. Exp Hematol 2015; 44:92-100. [PMID: 26646990 DOI: 10.1016/j.exphem.2015.11.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 11/18/2015] [Accepted: 11/21/2015] [Indexed: 12/20/2022]
Abstract
Hematopoietic stem/progenitor cells (HSPCs) play important roles in fighting systemic infection as they supply immune cells in a demand-adapted manner. Various mechanisms govern HSPC responses to infection, including cytokine signaling, niche function, and direct sensing of pathogen-derived molecules by HSPCs themselves. Here we review recent advances in our understanding of HSPC responses to infection and also consider newly identified STING-mediated machinery recognizing bacteria-derived cyclic dinucleotides.
Collapse
Affiliation(s)
- Hiroshi Kobayashi
- Department of Stem Cell Biology, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan
| | - Toshio Suda
- Cancer Science Institute, National University of Singapore, Singapore
| | - Keiyo Takubo
- Department of Stem Cell Biology, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan.
| |
Collapse
|
17
|
Ishida T, Yamazaki S, Nakauchi H, Higashihara M, Otsu M. Reactive oxygen species in hematopoietic stem cells affect culture outcomes under inflammatory conditions. ACTA ACUST UNITED AC 2015. [DOI: 10.13055/ojhmt_6_1_7.150907] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
18
|
Libregts SFWM, Nolte MA. Parallels between immune driven-hematopoiesis and T cell activation: 3 signals that relay inflammatory stress to the bone marrow. Exp Cell Res 2014; 329:239-47. [PMID: 25246130 DOI: 10.1016/j.yexcr.2014.09.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2014] [Revised: 09/08/2014] [Accepted: 09/11/2014] [Indexed: 12/27/2022]
Abstract
Quiescence, self-renewal, lineage commitment and differentiation of hematopoietic stem cells (HSCs) towards fully mature blood cells are a complex process that involves both intrinsic and extrinsic signals. During steady-state conditions, most hematopoietic signals are provided by various resident cells inside the bone marrow (BM), which establish the HSC micro-environment. However, upon infection, the hematopoietic process is also affected by pathogens and activated immune cells, which illustrates an effective feedback mechanism to hematopoietic stem and progenitor cells (HSPCs) via immune-mediated signals. Here, we review the impact of pathogen-associated molecular patterns (PAMPs), damage-associated molecular patterns (DAMPs), costimulatory molecules and pro-inflammatory cytokines on the quiescence, proliferation and differentiation of HSCs and more committed progenitors. As modulation of HSPC function via these immune-mediated signals holds an interesting parallel with the "three-signal-model" described for the activation and differentiation of naïve T-cells, we propose a novel "three-signal" concept for immune-driven hematopoiesis. In this model, the recognition of PAMPs and DAMPs will activate HSCs and induce proliferation, while costimulatory molecules and pro-inflammatory cytokines confer a second and third signal, respectively, which further regulate expansion, lineage commitment and differentiation of HSPCs. We review the impact of inflammatory stress on hematopoiesis along these three signals and we discuss whether they act independently from each other or that concurrence of these signals is important for an adequate response of HSPCs upon infection.
Collapse
Affiliation(s)
- Sten F W M Libregts
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Plesmanlaan 125, 1066 CX Amsterdam, The Netherlands
| | - Martijn A Nolte
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Plesmanlaan 125, 1066 CX Amsterdam, The Netherlands.
| |
Collapse
|
19
|
Pro-inflammatory cytokines: emerging players regulating HSC function in normal and diseased hematopoiesis. Exp Cell Res 2014; 329:248-54. [PMID: 25149680 DOI: 10.1016/j.yexcr.2014.08.017] [Citation(s) in RCA: 149] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Revised: 08/09/2014] [Accepted: 08/11/2014] [Indexed: 02/07/2023]
Abstract
Hematopoiesis is the hierarchical process in which all lineages of blood cells are produced by self-renewing hematopoietic stem cells (HSCs) in the bone marrow (BM). While the regulatory factors that maintain proper HSC function and lineage output under normal conditions are well understood, significantly less is known about how HSC fate is regulated in response to inflammation or disease. As many blood disorders are associated with overproduction of pro-inflammatory cytokines, significant interest has emerged in understanding the impact of these factors on HSC function. In this review we highlight key advances demonstrating the impact of pro-inflammatory cytokines on the biology of HSCs and the BM niche, and address ongoing questions regarding their role in normal and pathogenic hematopoiesis.
Collapse
|
20
|
von Bonin M, Bornhäuser M. Concise Review: The Bone Marrow Niche as a Target of Graft Versus Host Disease. Stem Cells 2014; 32:1420-8. [DOI: 10.1002/stem.1691] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 02/09/2014] [Indexed: 12/12/2022]
Affiliation(s)
- Malte von Bonin
- Medizinische Klinik und Poliklinik 1; Universitätsklinikum Carl-Gustav Carus, Medizinische Fakultät der Technischen Universität Dresden; Dresden Germany
- German Cancer Consortium (DKTK); Im Neuenheimer Feld 280 Heidelberg Germany
- German Cancer Research Center (DKFZ); Im Neuenheimer Feld 280 Heidelberg Germany
| | - Martin Bornhäuser
- Medizinische Klinik und Poliklinik 1; Universitätsklinikum Carl-Gustav Carus, Medizinische Fakultät der Technischen Universität Dresden; Dresden Germany
| |
Collapse
|
21
|
Mizrahi K, Ash S, Peled T, Yaniv I, Stein J, Askenasy N. Negative selection by apoptosis enriches progenitors in naïve and expanded human umbilical cord blood grafts. Bone Marrow Transplant 2014; 49:942-9. [DOI: 10.1038/bmt.2014.79] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Revised: 01/27/2014] [Accepted: 02/06/2014] [Indexed: 01/16/2023]
|
22
|
Uddin MN, Zhang Y, Harton JA, MacNamara KC, Avram D. TNF-α-dependent hematopoiesis following Bcl11b deletion in T cells restricts metastatic melanoma. THE JOURNAL OF IMMUNOLOGY 2014; 192:1946-53. [PMID: 24446520 DOI: 10.4049/jimmunol.1301976] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Using several tumor models, we demonstrate that mice deficient in Bcl11b in T cells, although having reduced numbers of T cells in the peripheral lymphoid organs, developed significantly less tumors compared with wild-type mice. Bcl11b(-/-) CD4(+) T cells, with elevated TNF-α levels, but not the Bcl11b(-/-) CD8(+) T cells, were required for the reduced tumor burden, as were NK1.1(+) cells, found in increased numbers in Bcl11b(F/F)/CD4-Cre mice. Among NK1.1(+) cells, the NK cell population was predominant in number and was the only population displaying elevated granzyme B levels and increased degranulation, although not increased proliferation. Although the number of myeloid-derived suppressor cells was increased in the lungs with metastatic tumors of Bcl11b(F/F)/CD4-Cre mice, their arginase-1 levels were severely reduced. The increase in NK cell and myeloid-derived suppressor cell numbers was associated with increased bone marrow and splenic hematopoiesis. Finally, the reduced tumor burden, increased numbers of NK cells in the lung, and increased hematopoiesis in Bcl11b(F/F)/CD4-Cre mice were all dependent on TNF-α. Moreover, TNF-α treatment of wild-type mice also reduced the tumor burden and increased hematopoiesis and the numbers and activity of NK cells in the lung. In vitro treatment with TNF-α of lineage-negative hematopoietic progenitors increased NK and myeloid differentiation, further supporting a role of TNF-α in promoting hematopoiesis. These studies reveal a novel role for TNF-α in the antitumor immune response, specifically in stimulating hematopoiesis and increasing the numbers and activity of NK cells.
Collapse
Affiliation(s)
- Mohammad N Uddin
- Center for Immunology and Microbial Disease, Albany Medical College, Albany, NY 12208
| | | | | | | | | |
Collapse
|
23
|
Mizrahi K, Askenasy N. Activation and crosstalk between TNF family receptors in umbilical cord blood cells is not responsible for loss of engraftment capacity following culture. AMERICAN JOURNAL OF STEM CELLS 2013; 2:155-64. [PMID: 24396708 PMCID: PMC3875276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 12/12/2013] [Indexed: 06/03/2023]
Abstract
Umbilical cord blood (UCB) is a rich source of hematopoietic progenitors for transplantation. Murine and human progenitors are insensitive to apoptotic signaling mediated by the TNF family receptors, however extension of culture over 48 hours is accompanied by severe deterioration in engraftment and hematopoietic reconstituting capacity. In this study we assessed crosstalk between the Fas, TNF and TRAIL receptors, and questioned whether it contributes to increased mortality and decreased activity of UCB progenitors following extended ex vivo culture for 72 hours. The well-characterized TNF-induced expression of Fas is mediated by both TNF receptors, yet the TNF receptors determine survival rather than Fas: superior viability of TNF-R1 progenitors. Additional cross talk includes upregulation of TRAIL-R1 by Fas-ligand, mediated both by fast cycling and inductive crosstalk. These inductive interactions are not accompanied by concomitant sensitization of progenitors to receptor-mediated apoptosis during extended culture, but rather decreased fractional apoptosis in expanded progenitor subsets expressing the receptors. TRAIL upregulates both TRAIL-R1 and TRAIL-R2, accompanied by commensurate susceptibility to spontaneous apoptosis. The current data reveal inductive crosstalk between TNF family receptors, which are largely dissociated from the sensitivity of hematopoietic progenitors to apoptosis. Activation of Fas, TNF and TRAIL receptors and excessive apoptosis are not responsible for loss of engraftment and impaired reconstituting activity of UCB progenitors following extended culture.
Collapse
Affiliation(s)
- Keren Mizrahi
- Frankel Laboratory, Center for Stem Cell Research, Department of Pediatric Hematology-Oncology, Schneider Children's Medical Center of Israel Petach Tikva 49202, Israel
| | - Nadir Askenasy
- Frankel Laboratory, Center for Stem Cell Research, Department of Pediatric Hematology-Oncology, Schneider Children's Medical Center of Israel Petach Tikva 49202, Israel
| |
Collapse
|
24
|
Mizrahi K, Stein J, Yaniv I, Kaplan O, Askenasy N. TNF-α has tropic rather than apoptotic activity in human hematopoietic progenitors: involvement of TNF receptor-1 and caspase-8. Stem Cells 2013; 31:156-66. [PMID: 23081800 DOI: 10.1002/stem.1259] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Accepted: 09/25/2012] [Indexed: 02/02/2023]
Abstract
Tumor necrosis factor-α (TNF-α) has been suggested to exert detrimental effects on hematopoietic progenitor function that might limit the success of transplants. In this study, we assessed the influences of TNF-α and its two cognate receptors on the function of fresh umbilical cord blood (UCB) and cryopreserved mobilized peripheral blood (mPB). CD34(+) progenitors from both sources are less susceptible to spontaneous apoptosis than lineage-committed cells and are not induced into apoptosis by TNF-α. Consequently, the activity of UCB-derived severe combined immune deficiency (SCID) reconstituting cells and long-term culture-initiating cells is unaffected by this cytokine. On the contrary, transient exposure of cells from both sources to TNF-α stimulates the activity of myeloid progenitors, which persists in vivo in UCB cell transplants. Progenitor stimulation is selectively mediated by TNF-R1 and involves activation of caspase-8, without redundant activity of TNF-R2. Despite significant differences between fresh UCB cells and cryopreserved mPB cells in susceptibility to apoptosis and time to activation, TNF-α is primarily involved in tropic signaling in hematopoietic progenitors from both sources. Cytokine-mediated tropism cautions against TNF-α neutralization under conditions of stress hematopoiesis and may be particularly beneficial in overcoming the limitations of UCB cell transplants.
Collapse
Affiliation(s)
- Keren Mizrahi
- Frankel Laboratory, Center for Stem Cell Research, Schneider Children's Medical Center of Israel, Petach Tikva, Israel
| | | | | | | | | |
Collapse
|
25
|
Zhao Y, Ling F, Wang HC, Sun XH. Chronic TLR signaling impairs the long-term repopulating potential of hematopoietic stem cells of wild type but not Id1 deficient mice. PLoS One 2013; 8:e55552. [PMID: 23383338 PMCID: PMC3562238 DOI: 10.1371/journal.pone.0055552] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Accepted: 12/23/2012] [Indexed: 12/12/2022] Open
Abstract
Hematopoietic stem cells (HSCs) maintain life-long blood supply but are inevitably exposed to various inflammatory stimuli, which have been shown to be harmful for HSC integrity but the mediators of the deleterious effects have not been fully identified. Here, we show that daily injection of mice with 1 µg of LPS for 30 days triggers a storm of inflammatory cytokines. LPS injection also stimulated the transcription of the Id1 gene in HSCs in vivo but not in vitro, suggesting an indirect effect. To determine the effects of LPS treatment on HSC function and to evaluate the significance of Id1 expression, we assess the repopulating potential of wild type and Id1 deficient mice, which were subjected to a 30 day regimen of LPS treatment. We found that LPS caused dramatic reduction in the long-term but not short-term repopulating activity of wild type but not Id1 deficient HSC. This treatment also led to increases in HSC counts, decreases in BrdU-label retention and disturbance of quiescence detected by Ki67 staining in wild type but not Id1 deficient mice. Together, it appears that Id1, at least in part, plays a role in LPS-induced damage of HSC integrity.
Collapse
Affiliation(s)
- Ying Zhao
- Immunobiology and Cancer Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, United States of America
| | - Flora Ling
- Immunobiology and Cancer Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, United States of America
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America
| | - Hong-Cheng Wang
- Immunobiology and Cancer Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, United States of America
| | - Xiao-Hong Sun
- Immunobiology and Cancer Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, United States of America
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America
- * E-mail:
| |
Collapse
|
26
|
Allogeneic hematopoietic cell transplantation for myelofibrosis in the era of JAK inhibitors. Blood 2012; 120:1367-79. [PMID: 22700718 DOI: 10.1182/blood-2012-05-399048] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The discovery of JAK2617F mutation paved the way for the development of small molecule inhibitors of JAK1/2 resulting in first approved JAK1/2 inhibitor, ruxolitinib, for the treatment of patients with myelofibrosis (MF). Although JAK1/2 inhibitor therapy is effective in decreasing the burden of symptoms associated with splenomegaly and MF-related constitutional symptoms, it is neither curative nor effective in reducing the risk of leukemic transformation. Presently, allogeneic hematopoietic cell transplantation (HCT) is the only curative therapy for MF. A significant risk of regimen-related toxicities, graft failure, and GVHD are major barriers to the success of HCT in MF. Because of significant HCT-associated morbidity and mortality, divergent opinions regarding its appropriate role in this clinical situation have emerged. In this review, the risk-benefit ratios of modern drug therapy compared with HCT in MF patients are analyzed. A risk-adapted approach individualized to each patient's biologic characteristics and comorbidities is described, which is currently warranted in determining optimal treatment strategies for patients with MF. Inclusion of JAK1/2 inhibitor therapy in future transplant conditioning regimens may provide an opportunity to overcome some of these barriers, resulting in greater success with HCT for MF patients.
Collapse
|
27
|
Holmes T, Yan F, Ko KH, Nordon R, Song E, O'Brien TA, Dolnikov A. Ex vivo expansion of cord blood progenitors impairs their short-term and long-term repopulating activity associated with transcriptional dysregulation of signalling networks. Cell Prolif 2012; 45:266-78. [PMID: 22429797 DOI: 10.1111/j.1365-2184.2012.00813.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2011] [Accepted: 01/13/2012] [Indexed: 01/18/2023] Open
Abstract
OBJECTIVES Cord blood (CB) has been established to be an alternative source of haematopoietic stem/progenitor cells (HPC) for transplantation. The number of HPC per CB unit is limited, which results in engraftment delay. Ex vivo expansion of HPC improvement must overcome this. MATERIALS AND METHODS Flow cytometry was used to extensively phenotype HPC pre- and post-expansion and CFDA-SE staining was used to track cell divisions. The NSG mouse model was employed in transplantation studies to determine long and short term repopulation in human cells. Gene array analysis was used to evaluate signalling pathways regulated following ex vivo expansion of HPC. RESULTS expansion of CD34(+) HPC impaired their regenerative function. In this xenograft transplantation model we showed that repopulating activity of CB cells declined following expansion. Expanded HPC had delayed engraftment at early and late stages post-transplant. High resolution division tracking revealed that the cultured HPC had reduced expansion and self-renewal probability and increased differentiation rate compared to non-expanded cells. Gene expression analysis exposed significant modulation of a complex network of genes and pathways that normally maintain HPC proliferation and limit their differentiation. CONCLUSIONS The decline in short-term engraftment is consistent with the loss of rapid SCID repopulating ability r(SRA) by expanded CD34(+) CD38(+) cells recently reported. Our data raise concerns for future clinical applications of expanded HPC alone in transplantation.
Collapse
Affiliation(s)
- T Holmes
- Sydney Cord & Marrow Transplant Facility, Sydney Children's Hospital, Sydney, NSW, Australia
| | | | | | | | | | | | | |
Collapse
|
28
|
Pharmacological inhibition of caspase and calpain proteases: a novel strategy to enhance the homing responses of cord blood HSPCs during expansion. PLoS One 2012; 7:e29383. [PMID: 22235291 PMCID: PMC3250442 DOI: 10.1371/journal.pone.0029383] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Accepted: 11/28/2011] [Indexed: 02/06/2023] Open
Abstract
Background Expansion of hematopoietic stem/progenitor cells (HSPCs) is a well-known strategy employed to facilitate the transplantation outcome. We have previously shown that the prevention of apoptosis by the inhibition of cysteine proteases, caspase and calpain played an important role in the expansion and engraftment of cord blood (CB) derived HSPCs. We hypothesize that these protease inhibitors might have maneuvered the adhesive and migratory properties of the cells rendering them to be retained in the bone marrow for sustained engraftment. The current study was aimed to investigate the mechanism of the homing responses of CB cells during expansion. Methodology/Principal Findings CB derived CD34+ cells were expanded using a combination of growth factors with and without Caspase inhibitor -zVADfmk or Calpain 1 inhibitor- zLLYfmk. The cells were analyzed for the expression of homing-related molecules. In vitro adhesive/migratory interactions and actin polymerization dynamics of HSPCs were assessed. In vivo homing assays were carried out in NOD/SCID mice to corroborate these observations. We observed that the presence of zVADfmk or zLLYfmk (inhibitors) caused the functional up regulation of CXCR4, integrins, and adhesion molecules, reflecting in a higher migration and adhesive interactions in vitro. The enhanced actin polymerization and the RhoGTPase protein expression complemented these observations. Furthermore, in vivo experiments showed a significantly enhanced homing to the bone marrow of NOD/SCID mice. Conclusion/Significance Our present study reveals another novel aspect of the regulation of caspase and calpain proteases in the biology of HSPCs. The priming of the homing responses of the inhibitor-cultured HSPCs compared to the cytokine-graft suggests that the modulation of these proteases may help in overcoming the major homing defects prevalent in the expansion cultures thereby facilitating the manipulation of cells for transplant procedures.
Collapse
|
29
|
Xiao Y, Li H, Zhang J, Volk A, Zhang S, Wei W, Zhang S, Breslin P, Zhang J. TNF-α/Fas-RIP-1-induced cell death signaling separates murine hematopoietic stem cells/progenitors into 2 distinct populations. Blood 2011; 118:6057-67. [PMID: 21989986 PMCID: PMC9211406 DOI: 10.1182/blood-2011-06-359448] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Accepted: 10/02/2011] [Indexed: 12/31/2022] Open
Abstract
We studied the effects of TNF-α and Fas-induced death signaling in hematopoietic stem and progenitor cells (HSPCs) by examining their contributions to the development of bone marrow failure syndromes in Tak1-knockout mice (Tak1(-/-)). We found that complete inactivation of TNF-α signaling by deleting both of its receptors, 1 and 2 (Tnfr1(-/-)r2(-/-)), can prevent the death of 30% to 40% of Tak1(-/-) HSPCs and partially repress the bone marrow failure phenotype of Tak1(-/-) mice. Fas deletion can prevent the death of 5% to 10% of Tak1(-/-) HSPCs but fails to further improve the survival of Tak1(-/-)Tnfr1(-/-)r2(-/-) HSPCs, suggesting that Fas might induce death within a subset of TNF-α-sensitive HSPCs. This TNF-α/Fas-induced cell death is a type of receptor-interacting protein-1 (RIP-1)-dependent programmed necrosis called necroptosis, which can be prevented by necrostatin-1, a specific RIP-1 inhibitor. In addition, we found that the remaining Tak1(-/-) HSPCs died of apoptosis mediated by the caspase-8-dependent extrinsic apoptotic pathway. This apoptosis can be converted into necroptosis by the inhibition of caspase-8 and prevented by inhibiting both caspase-8 and RIP-1 activities. We concluded that HSPCs are heterogeneous populations in response to death signaling stimulation. Tak1 mediates a critical survival signal, which protects against both TNF-α/Fas-RIP-1-dependent necroptosis and TNF-α/Fas-independent apoptosis in HSPCs.
Collapse
MESH Headings
- Anemia, Aplastic
- Animals
- Antioxidants/pharmacology
- Apoptosis/drug effects
- Apoptosis/physiology
- Bone Marrow Diseases
- Bone Marrow Failure Disorders
- Caspase 3/metabolism
- Caspase 8/metabolism
- Caspase Inhibitors
- Cell Differentiation/physiology
- GTPase-Activating Proteins/antagonists & inhibitors
- GTPase-Activating Proteins/metabolism
- Hematopoietic Stem Cells/classification
- Hematopoietic Stem Cells/cytology
- Hematopoietic Stem Cells/metabolism
- Hemoglobinuria, Paroxysmal/metabolism
- Hemoglobinuria, Paroxysmal/pathology
- Imidazoles/pharmacology
- Indoles/pharmacology
- MAP Kinase Kinase Kinases/genetics
- MAP Kinase Kinase Kinases/metabolism
- Mice
- Mice, Knockout
- Necrosis
- Phenotype
- Receptors, Tumor Necrosis Factor, Type I/genetics
- Receptors, Tumor Necrosis Factor, Type I/metabolism
- Receptors, Tumor Necrosis Factor, Type II/genetics
- Receptors, Tumor Necrosis Factor, Type II/metabolism
- Signal Transduction/drug effects
- Signal Transduction/physiology
- Tumor Necrosis Factor-alpha/metabolism
- fas Receptor/metabolism
Collapse
Affiliation(s)
- Yechen Xiao
- Oncology Institute, Cardinal Bernardin Cancer Center, Loyola University Medical Center, Maywood, IL 60153, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
30
|
TNFα facilitates clonal expansion of JAK2V617F positive cells in myeloproliferative neoplasms. Blood 2011; 118:6392-8. [PMID: 21860020 DOI: 10.1182/blood-2011-04-348144] [Citation(s) in RCA: 219] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Proinflammatory cytokines such as TNFα are elevated in patients with myeloproliferative neoplasms (MPN), but their contribution to disease pathogenesis is unknown. Here we reveal a central role for TNFα in promoting clonal dominance of JAK2(V617F) expressing cells in MPN. We show that JAK2(V617F) kinase regulates TNFα expression in cell lines and primary MPN cells and TNFα expression is correlated with JAK2(V617F) allele burden. In clonogenic assays, normal controls show reduced colony formation in the presence of TNFα while colony formation by JAK2(V617F)-positive progenitor cells is resistant or stimulated by exposure to TNFα. Ectopic JAK2(V617F) expression confers TNFα resistance to normal murine progenitor cells and overcomes inherent TNFα hypersensitivity of Fanconi anemia complementation group C deficient progenitors. Lastly, absence of TNFα limits clonal expansion and attenuates disease in a murine model of JAK2(V617F)-positive MPN. Altogether our data are consistent with a model where JAK2(V617F) promotes clonal selection by conferring TNFα resistance to a preneoplastic TNFα sensitive cell, while simultaneously generating a TNFα-rich environment. Mutations that confer resistance to environmental stem cell stressors are a recognized mechanism of clonal selection and leukemogenesis in bone marrow failure syndromes and our data suggest that this mechanism is also critical to clonal selection in MPN.
Collapse
|
31
|
Pronk CJH, Veiby OP, Bryder D, Jacobsen SEW. Tumor necrosis factor restricts hematopoietic stem cell activity in mice: involvement of two distinct receptors. ACTA ACUST UNITED AC 2011; 208:1563-70. [PMID: 21768269 PMCID: PMC3149225 DOI: 10.1084/jem.20110752] [Citation(s) in RCA: 156] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Both Tnfrsf1a and Tnfrsf1b are needed for the suppressive effect of TNF on murine HSC activity in vitro and in vivo. Whereas maintenance of hematopoietic stem cells (HSCs) is a requisite for life, uncontrolled expansion of HSCs might enhance the propensity for leukemic transformation. Accordingly, HSC numbers are tightly regulated. The identification of physical cellular HSC niches has underscored the importance of extrinsic regulators of HSC homeostasis. However, whereas extrinsic positive regulators of HSCs have been identified, opposing extrinsic repressors of HSC expansion in vivo have yet to be described. Like many other acute and chronic inflammatory diseases, bone marrow (BM) failure syndromes are associated with tumor necrosis factor-α (TNF) overexpression. However, the in vivo relevance of TNF in the regulation of HSCs has remained unclear. Of considerable relevance for normal hematopoiesis and in particular BM failure syndromes, we herein demonstrate that TNF is a cell-extrinsic and potent endogenous suppressor of normal HSC activity in vivo in mice. These effects of TNF involve two distinct TNF receptors.
Collapse
Affiliation(s)
- Cornelis J H Pronk
- Hematopoietic Stem Cell Laboratory, Lund Strategic Research Center for Stem Cell Biology and Cell Therapy, Lund University, 221 84 Lund, Sweden
| | | | | | | |
Collapse
|
32
|
Moldenhauer A, Futschik M, Lu H, Helmig M, Götze P, Bal G, Zenke M, Han W, Salama A. Interleukin 32 promotes hematopoietic progenitor expansion and attenuates bone marrow cytotoxicity. Eur J Immunol 2011; 41:1774-86. [DOI: 10.1002/eji.201040986] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2010] [Revised: 01/23/2011] [Accepted: 03/15/2011] [Indexed: 11/07/2022]
|
33
|
Kirouac DC, Ito C, Csaszar E, Roch A, Yu M, Sykes EA, Bader GD, Zandstra PW. Dynamic interaction networks in a hierarchically organized tissue. Mol Syst Biol 2011; 6:417. [PMID: 20924352 PMCID: PMC2990637 DOI: 10.1038/msb.2010.71] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2010] [Accepted: 07/27/2010] [Indexed: 12/17/2022] Open
Abstract
We have integrated gene expression profiling with database and literature mining, mechanistic modeling, and cell culture experiments to identify intercellular and intracellular networks regulating blood stem cell self-renewal. Blood stem cell fate in vitro is regulated non-autonomously by a coupled positive–negative intercellular feedback circuit, composed of megakaryocyte-derived stimulatory growth factors (VEGF, PDGF, EGF, and serotonin) versus monocyte-derived inhibitory factors (CCL3, CCL4, CXCL10, TGFB2, and TNFSF9). The antagonistic signals converge in a core intracellular network focused around PI3K, Raf, PLC, and Akt. Model simulations enable functional classification of the novel endogenous ligands and signaling molecules.
Intercellular (between cell) communication networks are required to maintain homeostasis and coordinate regenerative and developmental cues in multicellular organisms. Despite the recognized importance of intercellular networks in regulating adult stem and progenitor cell fate, the specific cell populations involved, and the underlying molecular mechanisms are largely undefined. Although a limited number of studies have applied novel bioinformatic approaches to unravel intercellular signaling in other cell systems (Frankenstein et al, 2006), a comprehensive analysis of intercellular communication in a stem cell-derived, hierarchical tissue network has yet to be reported. As a model system to explore intercellular communication networks in a hierarchically organized tissue, we cultured human umbilical cord blood (UCB)-derived stem and progenitor cells in defined, minimal cytokine-supplemented liquid culture (Madlambayan et al, 2006). To systematically explore the molecular and cellular dynamics underlying primitive progenitor growth and differentiation, gene expression profiles of primitive (lineage negative; Lin−) and mature (lineage positive; Lin+) populations were generated during phases of stem cell expansion versus depletion. Parallel phenotypic and subproteomic experiments validated that mRNA expression correlated with complex measures of proteome activity (protein secretion and cell surface expression). Using a curated list of secreted ligand–receptor interactions and published expression profiles of purified mature blood populations, we implemented a novel algorithm to reconstruct the intercellular signaling networks established between stem cells and multi-lineage progeny in vitro. By correlating differential expression patterns with stem cell growth, we predict cell populations, pathways, and secreted ligands associated with stem cell self-renewal and differentiation (Figure 3A). We then tested the correlative predictions in a series of cell culture experiments. UCB progenitor cell cultures were supplemented with saturating amounts of 18 putative regulatory ligands, or cocultured with purified mature blood lineages (megakaryocytes, monocytes, and erythrocytes), and analyzed for effects on total cell, progenitor, and primitive progenitor growth. At the primitive progenitor level, 3/5 novel predicted stimulatory ligands (EGF, PDGFB, and VEGF) displayed significant positive effects, 5/7 predicted inhibitory factors (CCL3, CCL4, CXCL10, TNFSF9, and TGFB2) displayed negative effects, whereas only 1/5 non-correlated ligand (CXCL7) displayed an effect. Also consistent with predictions from gene expression data, megakaryocytes and monocytes were found to stimulate and inhibit primitive progenitor growth, respectively, and these effects were attributable to differential secretome profiles of stimulatory versus inhibitory ligands. Cellular responses to external stimuli, particularly in heterogeneous and dynamic cell populations, represent complex functions of multiple cell fate decisions acting both directly and indirectly on the target (stem cell) populations. Experimentally distinguishing the mode of action of cytokines is thus a difficult task. To address this we used our previously published interactive model of hematopoiesis (Kirouac et al, 2009) to classify experimentally identified regulatory ligands into one of four distinct functional categories based on their differential effects on cell population growth. TGFB2 was classified as a proliferation inhibitor, CCL4, CXCL10, SPARC, and TNFSF9 as self-renewal inhibitors, CCL3 a proliferation stimulator, and EGF, VEGF, and PDGFB as self-renewal stimulators. Stem and progenitor cells exposed to combinatorial extracellular signals must propagate this information through intracellular molecular networks, and respond appropriately by modifying cell fate decisions. To explore how our experimentally identified positive and negative regulatory signals are integrated at the intracellular level, we constructed a blood stem cell self-renewal signaling network through extensive literature curation and protein–protein interaction (PPI) network mapping. We find that signal transduction pathways activated by the various stimulatory and inhibitory ligands converge on a limited set of molecular control nodes, forming a core subnetwork enriched for known regulators of self-renewal (Figure 6A). To experimentally test the intracellular signaling molecules computationally predicted as regulators of stem cell self-renewal, we obtained five small molecule antagonists against the kinases Phosphatidylinositol 3-kinase (PI3K), Raf, Akt, Phospholipase C (PLC), and MEK1. Liquid cultures were supplemented with the five molecules individually, and resultant cell population outputs compared against model simulations to deconvolute the functional effects on proliferation (and survival) versus self-renewal. This analysis classifies inhibition of PI3K and Raf activity as selectively targeting self-renewal, PLC as selectively targeting survival, and Akt as selectively targeting proliferation; MEK inhibition appears non-specific for these processes. This represents the first systematic characterization of how cell fate decisions are regulated non-autonomously through lineage-specific interactions with differentiated progeny. The complex intercellular communication networks can be approximated as an antagonistic positive–negative feedback circuit, wherein progenitor expansion is modulated by a balance of megakaryocyte-derived stimulatory factors (EGF, PDGF, VEGF, and possibly serotonin) versus monocyte-derived inhibitory factors (CCL3, CCL4, CXCL10, TGFB2, and TNFSF9). This complex milieu of endogenous regulatory signals is integrated and processed within a core intracellular signaling network, resulting in modulation of cell-level kinetic parameters (proliferation, survival, and self-renewal). We reconstruct a stem cell associated intracellular network, and identify PI3K, Raf, Akt, and PLC as functionally distinct signal integration nodes, linking extracellular and intracellular signaling. These findings lay the groundwork for novel strategies to control blood stem cell self-renewal in vitro and in vivo. Intercellular (between cell) communication networks maintain homeostasis and coordinate regenerative and developmental cues in multicellular organisms. Despite the importance of intercellular networks in stem cell biology, their rules, structure and molecular components are poorly understood. Herein, we describe the structure and dynamics of intercellular and intracellular networks in a stem cell derived, hierarchically organized tissue using experimental and theoretical analyses of cultured human umbilical cord blood progenitors. By integrating high-throughput molecular profiling, database and literature mining, mechanistic modeling, and cell culture experiments, we show that secreted factor-mediated intercellular communication networks regulate blood stem cell fate decisions. In particular, self-renewal is modulated by a coupled positive–negative intercellular feedback circuit composed of megakaryocyte-derived stimulatory growth factors (VEGF, PDGF, EGF, and serotonin) versus monocyte-derived inhibitory factors (CCL3, CCL4, CXCL10, TGFB2, and TNFSF9). We reconstruct a stem cell intracellular network, and identify PI3K, Raf, Akt, and PLC as functionally distinct signal integration nodes, linking extracellular, and intracellular signaling. This represents the first systematic characterization of how stem cell fate decisions are regulated non-autonomously through lineage-specific interactions with differentiated progeny.
Collapse
Affiliation(s)
- Daniel C Kirouac
- Institute for Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
| | | | | | | | | | | | | | | |
Collapse
|
34
|
Pearl-Yafe M, Mizrahi K, Stein J, Yolcu ES, Kaplan O, Shirwan H, Yaniv I, Askenasy N. Tumor necrosis factor receptors support murine hematopoietic progenitor function in the early stages of engraftment. Stem Cells 2010; 28:1270-80. [PMID: 20506490 DOI: 10.1002/stem.448] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Tumor necrosis factor (TNF) family receptors/ligands are important participants in hematopoietic homeostasis, in particular as essential negative expansion regulators of differentiated clones. As a prominent injury cytokine, TNF-alpha has been traditionally considered to suppress donor hematopoietic stem and progenitor cell function after transplantation. We monitored the involvement of TNF receptors (TNF-R) 1 and 2 in murine hematopoietic cell engraftment and their inter-relationship with Fas. Transplantation of lineage-negative (lin(-)) bone marrow cells (BMC) from TNF receptor-deficient mice into wild-type recipients showed defective early engraftment and loss of durable hematopoietic contribution upon recovery of host hematopoiesis. Consistently, cells deficient in TNF receptors had reduced competitive capacity as compared to wild-type progenitors. The TNF receptors were acutely upregulated in bone marrow (BM)-homed donor cells (wild-type) early after transplantation, being expressed in 60%-75% of the donor cells after 6 days. Both TNF receptors were detected in fast cycling, early differentiating progenitors, and were ubiquitously expressed in the most primitive progenitors with long-term reconstituting potential (lin(-)c-kit(+) stem cell antigen (SCA)-1(+)). BM-homed donor cells were insensitive to apoptosis induced by TNF-alpha and Fas-ligand and their combination, despite reciprocal inductive cross talk between the TNF and Fas receptors. The engraftment supporting effect of TNF-alpha is attributed to stimulation of progenitors through TNF-R1, which involves activation of the caspase cascade. This stimulatory effect was not observed for TNF-R2, and this receptor did not assume redundant stimulatory function in TNFR1-deficient cells. It is concluded that TNF-alpha plays a tropic role early after transplantation, which is essential to successful progenitor engraftment.
Collapse
Affiliation(s)
- Michal Pearl-Yafe
- Frankel Laboratory, Center for Stem Cell Research, Schneider Children's Medical Center of Israel, Petach Tikva, Israel
| | | | | | | | | | | | | | | |
Collapse
|
35
|
M SV, Kale VP, Limaye LS. Expansion of cord blood CD34 cells in presence of zVADfmk and zLLYfmk improved their in vitro functionality and in vivo engraftment in NOD/SCID mouse. PLoS One 2010; 5:e12221. [PMID: 20808921 PMCID: PMC2923186 DOI: 10.1371/journal.pone.0012221] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2010] [Accepted: 07/17/2010] [Indexed: 11/19/2022] Open
Abstract
Background Cord blood (CB) is a promising source for hematopoietic stem cell transplantations. The limitation of cell dose associated with this source has prompted the ex vivo expansion of hematopoietic stem and progenitor cells (HSPCs). However, the expansion procedure is known to exhaust the stem cell pool causing cellular defects that promote apoptosis and disrupt homing to the bone marrow. The role of apoptotic machinery in the regulation of stem cell compartment has been speculated in mouse hematopoietic and embryonic systems. We have consistently observed an increase in apoptosis in the cord blood derived CD34+ cells cultured with cytokines compared to their freshly isolated counterpart. The present study was undertaken to assess whether pharmacological inhibition of apoptosis could improve the outcome of expansion. Methodology/Principal Findings CB CD34+ cells were expanded with cytokines in the presence or absence of cell permeable inhibitors of caspases and calpains; zVADfmk and zLLYfmk respectively. A novel role of apoptotic protease inhibitors was observed in increasing the CD34+ cell content of the graft during ex vivo expansion. This was further reflected in improved in vitro functional aspects of the HSPCs; a higher clonogenicity and long term culture initiating potential. These cells sustained superior long term engraftment and an efficient regeneration of major lympho-myeloid lineages in the bone marrow of NOD/SCID mouse compared to the cells expanded with growth factors alone. Conclusion/Significance Our data show that, use of either zVADfmk or zLLYfmk in the culture medium improves expansion of CD34+ cells. The strategy protects stem cell pool and committed progenitors, and improves their in vitro functionality and in vivo engraftment. This observation may complement the existing protocols used in the manipulation of hematopoietic cells for therapeutic purposes. These findings may have an impact in the CB transplant procedures involving a combined infusion of unmanipulated and expanded grafts.
Collapse
Affiliation(s)
- Sangeetha V. M
- Stem Cell Biology Laboratory, National Centre for Cell Science, Pune, Maharashtra, India
| | - Vaijayanti P. Kale
- Stem Cell Biology Laboratory, National Centre for Cell Science, Pune, Maharashtra, India
| | - Lalita S. Limaye
- Stem Cell Biology Laboratory, National Centre for Cell Science, Pune, Maharashtra, India
- * E-mail:
| |
Collapse
|
36
|
Affiliation(s)
- O Beyne-Rauzy
- Service de médecine interne, place du Dr-Baylac, 31059 Toulouse, France; Inserm U563, centre de physiopathologie Toulouse-Purpan, CHU de Purpan, place du Dr-Baylac, 31059 Toulouse, France
| |
Collapse
|
37
|
Gari K, Constantinou A. The role of the Fanconi anemia network in the response to DNA replication stress. Crit Rev Biochem Mol Biol 2009; 44:292-325. [PMID: 19728769 DOI: 10.1080/10409230903154150] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Fanconi anemia is a genetically heterogeneous disorder associated with chromosome instability and a highly elevated risk for developing cancer. The mutated genes encode proteins involved in the cellular response to DNA replication stress. Fanconi anemia proteins are extensively connected with DNA caretaker proteins, and appear to function as a hub for the coordination of DNA repair with DNA replication and cell cycle progression. At a molecular level, however, the raison d'être of Fanconi anemia proteins still remains largely elusive. The thirteen Fanconi anemia proteins identified to date have not been embraced into a single and defined biological process. To help put the Fanconi anemia puzzle into perspective, we begin this review with a summary of the strategies employed by prokaryotes and eukaryotes to tolerate obstacles to the progression of replication forks. We then summarize what we know about Fanconi anemia with an emphasis on biochemical aspects, and discuss how the Fanconi anemia network, a late acquisition in evolution, may function to permit the faithful and complete duplication of our very large vertebrate chromosomes.
Collapse
Affiliation(s)
- Kerstin Gari
- DNA Damage Response Laboratory, Cancer Research UK, London Research Institute, Clare Hall Laboratories, South Mimms, UK
| | | |
Collapse
|
38
|
Hematopoietic stem cell responsiveness to exogenous signals is limited by caspase-3. Cell Stem Cell 2009; 2:584-94. [PMID: 18522851 DOI: 10.1016/j.stem.2008.03.012] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2007] [Revised: 01/14/2008] [Accepted: 03/19/2008] [Indexed: 01/14/2023]
Abstract
Limited responsiveness to inflammatory cytokines is a feature of adult hematopoietic stem cells and contributes to the relative quiescence and durability of the stem cell population in vivo. Here we report that the executioner Caspase, Caspase-3, unexpectedly participates in that process. Mice deficient in Caspase-3 had increased numbers of immunophenotypic long-term repopulating stem cells in association with multiple functional changes, most prominently cell cycling. Though these changes were cell autonomous, they reflected altered activation by exogenous signals. Caspase-3(-/-) cells exhibited cell type-specific changes in phosphorylated members of the Ras-Raf-MEK-ERK pathway in response to specific cytokines, while notably, members of other pathways, such as pSTAT3, pSTAT5, pAKT, pp38 MAPK, pSmad2, and pSmad3, were unaffected. Caspase-3 contributes to stem cell quiescence, dampening specific signaling events and thereby cell responsiveness to microenvironmental stimuli.
Collapse
|
39
|
Ectopic HOXB4 overcomes the inhibitory effect of tumor necrosis factor-{alpha} on Fanconi anemia hematopoietic stem and progenitor cells. Blood 2009; 113:5111-20. [PMID: 19270262 DOI: 10.1182/blood-2008-09-180224] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Ectopic delivery of HOXB4 elicits the expansion of engrafting hematopoietic stem cells (HSCs). We hypothesized that inhibition of tumor necrosis factor-alpha (TNF-alpha) signaling may be central to the self-renewal signature of HOXB4. Because HSCs derived from Fanconi anemia (FA) knockout mice are hypersensitive to TNF-alpha, we studied Fancc(-/-) HSCs to determine the physiologic effects of HOXB4 on TNF-alpha sensitivity and the relationship of these effects to the engraftment defect of FA HSCs. Overexpression of HOXB4 reversed the in vitro hypersensitivity to TNF-alpha of Fancc(-/-) HSCs and progenitors (P) and partially rescued the engraftment defect of these cells. Coexpression of HOXB4 and the correcting FA-C protein resulted in full correction compared with wild-type (WT) HSCs. Ectopic expression of HOXB4 resulted in a reduction in both apoptosis and reactive oxygen species in Fancc(-/-) but not WT HSC/P. HOXB4 overexpression was also associated with a significant reduction in surface expression of TNF-alpha receptors on Fancc(-/-) HSC/P. Finally, enhanced engraftment was seen even when HOXB4 was expressed in a time-limited fashion during in vivo reconstitution. Thus, the HOXB4 engraftment signature may be related to its effects on TNF-alpha signaling, and this pathway may be a molecular target for timed pharmacologic manipulation of HSC during reconstitution.
Collapse
|
40
|
Alenzi FQ, Alenazi BQ, Ahmad SY, Salem ML, Al-Jabri AA, Wyse RKH. The haemopoietic stem cell: between apoptosis and self renewal. THE YALE JOURNAL OF BIOLOGY AND MEDICINE 2009; 82:7-18. [PMID: 19325941 PMCID: PMC2660591 DOI: pmid/19325941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Self renewal and apoptosis of haemopoietic stem cells (HSC) represent major factors that determine the size of the haemopoietic cell mass. Changes in self renewal above or below the steady state value of 0.5 will result in either bone marrow expansion or aplasia, respectively. Despite the growing body of research that describes the potential role of HSC, there is still very little information on the mechanisms that govern HSC self renewal and apoptosis. Considerable insight into the role of HSC in many diseases has been gained in recent years. In light of their crucial importance, this article reviews recent developments in the understanding of the molecular, biological, and physiological characteristics of haemopoietic stem cells.
Collapse
Affiliation(s)
- Faris Q Alenzi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Saudi Arabia.
| | | | | | | | | | | |
Collapse
|
41
|
Shojaei F, Menendez P. Molecular profiling of candidate human hematopoietic stem cells derived from human embryonic stem cells. Exp Hematol 2008; 36:1436-48. [DOI: 10.1016/j.exphem.2008.06.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2008] [Revised: 05/05/2008] [Accepted: 06/02/2008] [Indexed: 12/01/2022]
|
42
|
Droll L, Song YH, Krohn A, Muehlberg F, Alt E. TNFα protects tissue resident stem cells from H2O2 induced apoptosis through a novel NF-кB p50/p50 homodimer mediated signaling pathway. Biochem Biophys Res Commun 2008; 371:626-9. [DOI: 10.1016/j.bbrc.2008.04.048] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2008] [Accepted: 04/04/2008] [Indexed: 11/15/2022]
|
43
|
Rezzoug F, Huang Y, Tanner MK, Wysoczynski M, Schanie CL, Chilton PM, Ratajczak MZ, Fugier-Vivier IJ, Ildstad ST. TNF-α Is Critical to Facilitate Hemopoietic Stem Cell Engraftment and Function. THE JOURNAL OF IMMUNOLOGY 2007; 180:49-57. [DOI: 10.4049/jimmunol.180.1.49] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
44
|
Aberrant activation of stress-response pathways leads to TNF-alpha oversecretion in Fanconi anemia. Blood 2007; 111:1913-23. [PMID: 18055871 DOI: 10.1182/blood-2007-07-099218] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Fanconi anemia (FA), an inherited syndrome that associates bone marrow failure, cancer predisposition, and genetic instability, is characterized by an overproduction of the myelosuppressive cytokine TNF-alpha through unknown mechanisms. We demonstrate here that FANC pathway loss-of-function results in the aberrant activation of 2 major stress-signaling pathways: NF-kappaB and MAPKs. These responses are independent on TNF-alpha expression. On the contrary, inhibition of the MAPK pathways normalizes TNF-alpha oversecretion in FA. Moreover, our data show that the overexpression of the matrix metalloproteinase MMP-7 is the key event directly responsible for the high rate of TNF-alpha shedding and release from the cytoplasmic membrane in FA. TNF-alpha overproduction is, indeed, normalized by MMP-7 inhibition. Finally, MAPK inhibition impacts on MMP-7 overexpression. Evidence is provided of the existence of a linear pathway in which FANC mutations activate MAPK signaling that induces MMP-7 overexpression leading, in fine, to TNF-alpha oversecretion. TNF-alpha may, in turn, sustain or amplify both MAPKs and NF-kappaB activation. Aberrant expression or activity of NF-kappaB and/or MAPKs has been already involved in bone marrow failure and leukemia, and their inhibition offered clinical benefit for patients. In conclusion, our data provide a strong rationale for new clinical trials on FA patients.
Collapse
|
45
|
Pearl-Yafe M, Yolcu ES, Stein J, Kaplan O, Shirwan H, Yaniv I, Askenasy N. Expression of Fas and Fas-ligand in donor hematopoietic stem and progenitor cells is dissociated from the sensitivity to apoptosis. Exp Hematol 2007; 35:1601-12. [PMID: 17889725 DOI: 10.1016/j.exphem.2007.07.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2007] [Revised: 07/02/2007] [Accepted: 07/12/2007] [Indexed: 12/31/2022]
Abstract
OBJECTIVE The interaction between the Fas receptor and its cognate ligand (FasL) has been implicated in the mutual suppression of donor and host hematopoietic cells after transplantation. Following the observation of deficient early engraftment of Fas and FasL-defective donor cells and recipients, we determined the role of the Fas-FasL interaction. METHODS Donor cells were recovered after syngeneic (CD45.1-->CD45.2) transplants from various organs and assessed for expression of Fas/FasL in reference to lineage markers, carboxyfluorescein succinimidyl ester dilution, Sca-1 and c-kit expression. Naïve and bone marrow-homed cells were challenged for apoptosis ex vivo. RESULTS The Fas receptor and ligand were markedly upregulated to 40% to 60% (p < 0.001 vs 5-10% in naïve cells) within 2 days after syngeneic transplantation, while residual host cells displayed modest and delayed upregulation of these molecules ( approximately 10%). All lin(-)Sca(+)c-kit(+) cells were Fas(+)FasL(+), including 95% of Sca-1(+) and 30% of c-kit(+) cells. Fas and FasL expression varied in donor cells that homed to bone marrow, spleen, liver and lung, and was induced by interaction with the stroma, irradiation, cell cycling, and differentiation. Bone marrow-homed donor cells challenged with supralethal doses of FasL were insensitive to apoptosis (3.2% +/- 1% vs 38% +/- 5% in naïve bone marrow cells), and engraftment was not affected by pretransplantation exposure of donor cells to an apoptotic challenge with FasL. CONCLUSION There was no evidence of Fas-mediated suppression of donor and host cell activity after transplantation. Resistance to Fas-mediated apoptosis evolves as a functional characteristic of hematopoietic reconstituting stem and progenitor cells, providing them competitive engraftment advantage over committed progenitors.
Collapse
Affiliation(s)
- Michal Pearl-Yafe
- Frankel Laboratory, Center for Stem Cell Research, Department of Pediatric Hematology-Oncology, Schneider Children's Medical Center of Israel, Petach Tikva, Israel
| | | | | | | | | | | | | |
Collapse
|
46
|
Schiedlmeier B, Santos AC, Ribeiro A, Moncaut N, Lesinski D, Auer H, Kornacker K, Ostertag W, Baum C, Mallo M, Klump H. HOXB4's road map to stem cell expansion. Proc Natl Acad Sci U S A 2007; 104:16952-7. [PMID: 17940039 PMCID: PMC2040480 DOI: 10.1073/pnas.0703082104] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2007] [Indexed: 01/22/2023] Open
Abstract
Homeodomain-containing transcription factors are important regulators of stem cell behavior. HOXB4 mediates expansion of adult and embryo-derived hematopoietic stem cells (HSCs) when expressed ectopically. To define the underlying molecular mechanisms, we performed gene expression profiling in combination with subsequent functional analysis with enriched adult HSCs and embryonic derivatives expressing inducible HOXB4. Thereby, we identified a set of overlapping genes that likely represent "universal" targets of HOXB4. A substantial number of loci are involved in signaling pathways important for controlling self-renewal, maintenance, and differentiation of stem cells. Functional assays performed on selected pathways confirmed the biological coherence of the array results. HOXB4 activity protected adult HSCs from the detrimental effects mediated by the proinflammatory cytokine TNF-alpha. This protection likely contributes to the competitive repopulation advantage of HOXB4-expressing HSCs observed in vivo. The concept of TNF-alpha inhibition may also prove beneficial for patients undergoing bone marrow transplantation. Furthermore, we demonstrate that HOXB4 activity and FGF signaling are intertwined. HOXB4-mediated expansion of adult and ES cell-derived HSCs was enhanced by specific and complete inhibition of FGF receptors. In contrast, the expanding activity of HOXB4 on hematopoietic progenitors in day 4-6 embryoid bodies was blunted in the presence of basic FGF (FGF2), indicating a dominant negative effect of FGF signaling on the earliest hematopoietic cells. In summary, our results strongly suggest that HOXB4 modulates the response of HSCs to multiple extrinsic signals in a concerted manner, thereby shifting the balance toward stem cell self-renewal.
Collapse
Affiliation(s)
- Bernhard Schiedlmeier
- *Department of Experimental Hematology, Hannover Medical School, Carl-Neuberg-Strasse1, 30625 Hannover, Germany
| | | | - Ana Ribeiro
- Instituto Gulbenkian de Ciencia, 2780-156 Oeiras, Portugal
| | | | - Dietrich Lesinski
- *Department of Experimental Hematology, Hannover Medical School, Carl-Neuberg-Strasse1, 30625 Hannover, Germany
| | - Herbert Auer
- Columbus Children's Research Institute, Columbus, OH 43210; and
| | - Karl Kornacker
- Division of Sensory Biophysics, Ohio State University, Columbus, OH 43205
| | - Wolfram Ostertag
- *Department of Experimental Hematology, Hannover Medical School, Carl-Neuberg-Strasse1, 30625 Hannover, Germany
| | - Christopher Baum
- *Department of Experimental Hematology, Hannover Medical School, Carl-Neuberg-Strasse1, 30625 Hannover, Germany
| | - Moises Mallo
- Instituto Gulbenkian de Ciencia, 2780-156 Oeiras, Portugal
| | - Hannes Klump
- *Department of Experimental Hematology, Hannover Medical School, Carl-Neuberg-Strasse1, 30625 Hannover, Germany
| |
Collapse
|
47
|
Pearl-Yafe M, Stein J, Yolcu ES, Farkas DL, Shirwan H, Yaniv I, Askenasy N. Fas transduces dual apoptotic and trophic signals in hematopoietic progenitors. Stem Cells 2007; 25:3194-203. [PMID: 17872500 DOI: 10.1634/stemcells.2007-0402] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Stem cells and progenitors are often required to realize their differentiation potential in hostile microenvironments. The Fas/Fas ligand (FasL) interaction is a major effector pathway of apoptosis, which negatively regulates the expansion of differentiated hematopoietic cells. The involvement of this molecular interaction in the function of hematopoietic stem and progenitor cells is not well understood. In the murine syngeneic transplant setting, both Fas and FasL are acutely upregulated in bone marrow-homed donor cells; however, the Fas(+) cells are largely insensitive to FasL-induced apoptosis. In heterogeneous populations of lineage-negative (lin(-)) bone marrow cells and progenitors isolated by counterflow centrifugal elutriation, trimerization of the Fas receptor enhanced the clonogenic activity. Inhibition of caspases 3 and 8 did not affect the trophic signals mediated by Fas, yet it efficiently blocked the apoptotic pathways. Fas-mediated tropism appears to be of physiological significance, as pre-exposure of donor cells to FasL improved the radioprotective qualities of hematopoietic progenitors, resulting in superior survival of myeloablated hosts. Under these conditions, the activity of long-term reconstituting cells was not affected, as determined in sequential secondary and tertiary transplants. Dual caspase-independent tropic and caspase-dependent apoptotic signaling place the Fas receptor at an important junction of activation and death. This regulatory mechanism of hematopoietic homeostasis activates progenitors to promote the recovery from aplasia and converts into a negative regulator in distal stages of cell differentiation. Disclosure of potential conflicts of interest is found at the end of this article.
Collapse
Affiliation(s)
- Michal Pearl-Yafe
- Frankel Laboratory, Center for Stem Cell Research, Department of Pediatric Hematology-Oncology, Schneider Children's Medical Center of Israel, 14 Kaplan Street, Petach Tikva, Israel
| | | | | | | | | | | | | |
Collapse
|
48
|
Sejas DP, Rani R, Qiu Y, Zhang X, Fagerlie SR, Nakano H, Williams DA, Pang Q. Inflammatory reactive oxygen species-mediated hemopoietic suppression in Fancc-deficient mice. THE JOURNAL OF IMMUNOLOGY 2007; 178:5277-87. [PMID: 17404312 PMCID: PMC2919363 DOI: 10.4049/jimmunol.178.8.5277] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Patients with the genomic instability syndrome Fanconi anemia (FA) commonly develop progressive bone marrow (BM) failure and have a high risk of cancer. Certain manifestations of the disease suggest that the FA immune system is dysfunctional and may contribute to the pathogenesis of both BM failure and malignancies. In this study, we have investigated inflammation and innate immunity in FA hemopoietic cells using mice deficient in Fanconi complementation group C gene (Fancc). We demonstrate that Fancc-deficient mice exhibit enhanced inflammatory response and are hypersensitive to LPS-induced septic shock as a result of hemopoietic suppression. This exacerbated inflammatory phenotype is intrinsic to the hemopoietic system and can be corrected by the re-expression of a wild-type FANCC gene, suggesting a potential role of the FANCC protein in innate immunity. LPS-mediated hemopoietic suppression requires two major inflammatory agents, TNF-alpha and reactive oxygen species. In addition, LPS-induced excessive accumulation of reactive oxygen species in Fancc(-/-) BM cells overactivates the stress kinase p38 and requires prolonged activation of the JNK. Our data implicate a role of inflammation in pathogenesis of FA and BM failure diseases in general.
Collapse
Affiliation(s)
- Daniel P. Sejas
- Division of Experimental Hematology, Cincinnati Children’s Research Foundation and Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229
| | - Reena Rani
- Division of Experimental Hematology, Cincinnati Children’s Research Foundation and Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229
| | - Yuhui Qiu
- Division of Experimental Hematology, Cincinnati Children’s Research Foundation and Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229
| | - Xiaoling Zhang
- Division of Experimental Hematology, Cincinnati Children’s Research Foundation and Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229
| | - Sara R. Fagerlie
- Clinical Transplantation Biology, Fred Hutchinson Cancer Research Center, Seattle, WA 98109
| | - Hiroyasu Nakano
- Department of Immunology, Juntendo University School of Medicine, Tokyo 113-8421, Japan
| | - David A. Williams
- Division of Experimental Hematology, Cincinnati Children’s Research Foundation and Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229
| | - Qishen Pang
- Division of Experimental Hematology, Cincinnati Children’s Research Foundation and Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229
| |
Collapse
|
49
|
Fujimoto T, Anderson K, Jacobsen SEW, Nishikawa SI, Nerlov C. Cdk6 blocks myeloid differentiation by interfering with Runx1 DNA binding and Runx1-C/EBPalpha interaction. EMBO J 2007; 26:2361-70. [PMID: 17431401 PMCID: PMC1864973 DOI: 10.1038/sj.emboj.7601675] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2006] [Accepted: 03/08/2007] [Indexed: 12/21/2022] Open
Abstract
Interactions between the cell cycle machinery and transcription factors play a central role in coordinating terminal differentiation and proliferation arrest. We here show that cyclin-dependent kinase 6 (Cdk6) is specifically expressed in proliferating hematopoietic progenitor cells, and that Cdk6 inhibits transcriptional activation by Runx1, but not C/EBPalpha or PU.1. Cdk6 inhibits Runx1 activity by binding to the runt domain of Runx1, interfering with Runx1 DNA binding and Runx1-C/EBPalpha interaction. Cdk6 expression increased myeloid progenitor proliferation, and inhibited myeloid lineage-specific gene expression and terminal differentiation in vitro and in vivo. These effects of Cdk6 did not require Cdk6 kinase activity. Cdk6-mediated inhibition of granulocytic differentiation could be reversed by excess Runx1, consistent with Runx1 being the major target for Cdk6. We propose that Cdk6 downregulation in myeloid progenitors releases Runx1 from Cdk6 inhibition, thereby allowing terminal differentiation. Since Runx transcription factors play central roles in hematopoietic, neuronal and osteogenic lineages, this novel, noncanonical Cdk6 function may control terminal differentiation in multiple tissues and cell types.
Collapse
Affiliation(s)
- T Fujimoto
- EMBL Mouse Biology Unit, Monterotondo, Italy
- Division of Cell Differentiation, IMEG, Kumamoto University, Kumamoto, Japan
| | - K Anderson
- Department of Stem Cell Biology, Hematopoietic Stem Cell Laboratory, Lund Strategic Research Center for Stem Cell Biology and Cell Therapy, Lund University, Lund, Sweden
| | - S E W Jacobsen
- Department of Stem Cell Biology, Hematopoietic Stem Cell Laboratory, Lund Strategic Research Center for Stem Cell Biology and Cell Therapy, Lund University, Lund, Sweden
| | - S-i Nishikawa
- RIKEN, Center for Developmental Biology, Minatoshima-minami-machi, Kobe, Japan
| | - C Nerlov
- EMBL Mouse Biology Unit, Monterotondo, Italy
- EMBL Mouse Biology Unit, Via Ramarini 32, 00016 Monterotondo 16, Italy. Tel: +39 06 9009 1218; Fax: +39 06 9009 1272; E-mail:
| |
Collapse
|
50
|
Pearl-Yafe M, Yolcu ES, Stein J, Kaplan O, Yaniv I, Shirwan H, Askenasy N. Fas ligand enhances hematopoietic cell engraftment through abrogation of alloimmune responses and nonimmunogenic interactions. Stem Cells 2007; 25:1448-55. [PMID: 17363551 DOI: 10.1634/stemcells.2007-0013] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Early after transplantation, donor lineage-negative bone marrow cells (lin(-) BMC) constitutively upregulated their expression of Fas ligand (FasL), suggesting an involvement of the Fas/FasL axis in engraftment. Following the observation of impaired engraftment in the presence of a dysfunctional Fas/FasL axis in FasL-defective (gld) donors or Fas-defective (lpr) recipients, we expressed a noncleavable FasL chimeric protein on the surface of donor lin(-) BMC. Despite a short life span of the protein in vivo, expression of FasL on the surface of all the donor lin(-) BMC improved the efficiency of engraftment twofold. The FasL-coated donor cells efficiently blunted the host alloimmune responses in primary recipients and retained their hematopoietic reconstituting potential in secondary transplants. Surprisingly, FasL protein improved the efficiency of engraftment in syngeneic transplants. The deficient engraftment in lpr recipients was not reversed in chimeric mice with Fas(-) stroma and Fas(+) BMC, demonstrating that the host marrow stroma was also a target of donor cell FasL. Hematopoietic stem and progenitor cells are insensitive to Fas-mediated apoptosis and thus can exploit the constitutive expression of FasL to exert potent veto activities in the early stages of engraftment. Manipulation of the donor cells using ectopic FasL protein accentuated the immunogenic and nonimmunogenic interactions between the donor cells and the host, alleviating the requirement for a megadose of transplanted cells to achieve a potent veto effect. Disclosure of potential conflicts of interest is found at the end of this article.
Collapse
Affiliation(s)
- Michal Pearl-Yafe
- Frankel Laboratory, Center for Stem Cell Research, Schneider Children's Medical Center of Israel, 14 Kaplan Street, Petach Tikva, Israel
| | | | | | | | | | | | | |
Collapse
|