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Zhou Y, Cai X, Zhang X, Dong Y, Pan X, Lai M, Zhang Y, Chen Y, Li X, Li X, Liu J, Zhang Y, Ma F. Mesenchymal stem/stromal cells from human pluripotent stem cell-derived brain organoid enhance the ex vivo expansion and maintenance of hematopoietic stem/progenitor cells. Stem Cell Res Ther 2024; 15:68. [PMID: 38443990 PMCID: PMC10916050 DOI: 10.1186/s13287-023-03624-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 12/22/2023] [Indexed: 03/07/2024] Open
Abstract
BACKGROUND Mesenchymal stem/stromal cells (MSCs) are of great therapeutic value due to their role in maintaining the function of hematopoietic stem/progenitor cells (HSPCs). MSCs derived from human pluripotent stem cells represent an ideal alternative because of their unlimited supply. However, the role of MSCs with neural crest origin derived from HPSCs on the maintenance of HSPCs has not been reported. METHODS Flow cytometric analysis, RNA sequencing and differentiation ability were applied to detect the characteristics of stromal cells from 3D human brain organoids. Human umbilical cord blood CD34+ (UCB-CD34+) cells were cultured in different coculture conditions composed of stromal cells and umbilical cord MSCs (UC-MSCs) with or without a cytokine cocktail. The hematopoietic stroma capacity of stromal cells was tested in vitro with the LTC-IC assay and in vivo by cotransplantation of cord blood nucleated cells and stroma cells into immunodeficient mice. RNA and proteomic sequencing were used to detect the role of MSCs on HSPCs. RESULTS The stromal cells, derived from both H1-hESCs and human induced pluripotent stem cells forebrain organoids, were capable of differentiating into the classical mesenchymal-derived cells (osteoblasts, chondrocytes, and adipocytes). These cells expressed MSC markers, thus named pluripotent stem cell-derived MSCs (pMSCs). The pMSCs showed neural crest origin with CD271 expression in the early stage. When human UCB-CD34+ HSPCs were cocultured on UC-MSCs or pMSCs, the latter resulted in robust expansion of UCB-CD34+ HSPCs in long-term culture and efficient maintenance of their transplantability. Comparison by RNA sequencing indicated that coculture of human UCB-CD34+ HSPCs with pMSCs provided an improved microenvironment for HSC maintenance. The pMSCs highly expressed the Wnt signaling inhibitors SFRP1 and SFRP2, indicating that they may help to modulate the cell cycle to promote the maintenance of UCB-CD34+ HSPCs by antagonizing Wnt activation. CONCLUSIONS A novel method for harvesting MSCs with neural crest origin from 3D human brain organoids under serum-free culture conditions was reported. We demonstrate that the pMSCs support human UCB-HSPC expansion in vitro in a long-term culture and the maintenance of their transplantable ability. RNA and proteomic sequencing indicated that pMSCs provided an improved microenvironment for HSC maintenance via mechanisms involving cell-cell contact and secreted factors and suppression of Wnt signaling. This represents a novel method for large-scale production of MSCs of neural crest origin and provides a potential approach for development of human hematopoietic stromal cell therapy for treatment of dyshematopoiesis.
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Affiliation(s)
- Ya Zhou
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China
| | - Xinping Cai
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College(CAMS & PUMC), Tianjin, 300020, China
| | - Xiuxiu Zhang
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China
| | - Yong Dong
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China
- Department of Immunology, School of Basic Medical Sciences, Chengdu Medical College, Chengdu, China
| | - Xu Pan
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China
| | - Mowen Lai
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China
| | - Yimeng Zhang
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China
| | - Yijin Chen
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China
| | - Xiaohong Li
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China
| | - Xia Li
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China
| | - Jiaxin Liu
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China
| | - Yonggang Zhang
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China.
| | - Feng Ma
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS & PUMC), Huacai Road 26, Chengdu, 610052, China.
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Caiado F, Kovtonyuk LV, Gonullu NG, Fullin J, Boettcher S, Manz MG. Aging drives Tet2+/- clonal hematopoiesis via IL-1 signaling. Blood 2023; 141:886-903. [PMID: 36379023 PMCID: PMC10651783 DOI: 10.1182/blood.2022016835] [Citation(s) in RCA: 40] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 10/19/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022] Open
Abstract
Clonal hematopoiesis of indeterminate potential (CHIP), also referred to as aging-related clonal hematopoiesis, is defined as an asymptomatic clonal expansion of mutant mature hematopoietic cells in ≥4% of blood leukocytes. CHIP associates with advanced age and increased risk for hematological malignancy, cardiovascular disease, and all-cause mortality. Loss-of-function somatic mutations in TET2 are frequent drivers of CHIP. However, the contribution of aging-associated cooperating cell-extrinsic drivers, like inflammation, remains underexplored. Using bone marrow (BM) transplantation and newly developed genetic mosaicism (HSC-SCL-Cre-ERT; Tet2+/flox; R26+/tm6[CAG-ZsGreen1]Hze) mouse models of Tet2+/-driven CHIP, we observed an association between increased Tet2+/- clonal expansion and higher BM levels of the inflammatory cytokine interleukin-1 (IL-1) upon aging. Administration of IL-1 to mice carrying CHIP led to an IL-1 receptor 1 (IL-1R1)-dependent expansion of Tet2+/- hematopoietic stem and progenitor cells (HSPCs) and mature blood cells. This expansion was caused by increased Tet2+/- HSPC cell cycle progression, increased multilineage differentiation, and higher repopulation capacity compared with their wild-type counterparts. In agreement, IL-1α-treated Tet2+/- hematopoietic stem cells showed increased DNA replication and repair transcriptomic signatures and reduced susceptibility to IL-1α-mediated downregulation of self-renewal genes. More important, genetic deletion of IL-1R1 in Tet2+/- HPSCs or pharmacologic inhibition of IL-1 signaling impaired Tet2+/- clonal expansion, establishing the IL-1 pathway as a relevant and therapeutically targetable driver of Tet2+/- CHIP progression during aging.
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Affiliation(s)
- Francisco Caiado
- Department of Medical Oncology and Hematology, University Hospital Zurich and University of Zurich, Comprehensive Cancer Center Zurich, Zurich, Switzerland
| | - Larisa V. Kovtonyuk
- Department of Medical Oncology and Hematology, University Hospital Zurich and University of Zurich, Comprehensive Cancer Center Zurich, Zurich, Switzerland
| | - Nagihan G. Gonullu
- Department of Medical Oncology and Hematology, University Hospital Zurich and University of Zurich, Comprehensive Cancer Center Zurich, Zurich, Switzerland
| | - Jonas Fullin
- Department of Medical Oncology and Hematology, University Hospital Zurich and University of Zurich, Comprehensive Cancer Center Zurich, Zurich, Switzerland
| | - Steffen Boettcher
- Department of Medical Oncology and Hematology, University Hospital Zurich and University of Zurich, Comprehensive Cancer Center Zurich, Zurich, Switzerland
| | - Markus G. Manz
- Department of Medical Oncology and Hematology, University Hospital Zurich and University of Zurich, Comprehensive Cancer Center Zurich, Zurich, Switzerland
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3
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Yvernogeau L, Dainese G, Jaffredo T. Dorsal aorta polarization and haematopoietic stem cell emergence. Development 2023; 150:286251. [PMID: 36602140 DOI: 10.1242/dev.201173] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Recent studies have highlighted the crucial role of the aorta microenvironment in the generation of the first haematopoietic stem cells (HSCs) from specialized haemogenic endothelial cells (HECs). Despite more than two decades of investigations, we require a better understanding of the cellular and molecular events driving aorta formation and polarization, which will be pivotal to establish the mechanisms that operate during HEC specification and HSC competency. Here, we outline the early mechanisms involved in vertebrate aorta formation by comparing four different species: zebrafish, chicken, mouse and human. We highlight how this process, which is tightly controlled in time and space, requires a coordinated specification of several cell types, in particular endothelial cells originating from distinct mesodermal tissues. We also discuss how molecular signals originating from the aorta environment result in its polarization, creating a unique entity for HSC generation.
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Affiliation(s)
- Laurent Yvernogeau
- Sorbonne Université, IBPS, CNRS UMR7622, Inserm U1156, Laboratoire de Biologie du Développement, 75005 Paris, France
| | - Giovanna Dainese
- Sorbonne Université, IBPS, CNRS UMR7622, Inserm U1156, Laboratoire de Biologie du Développement, 75005 Paris, France
| | - Thierry Jaffredo
- Sorbonne Université, IBPS, CNRS UMR7622, Inserm U1156, Laboratoire de Biologie du Développement, 75005 Paris, France
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4
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Hettler F, Schreck C, Marquez SR, Engleitner T, Vilne B, Landspersky T, Weidner H, Hausinger R, Mishra R, Oellinger R, Rauner M, Naumann R, Peschel C, Bassermann F, Rad R, Istvanffy R, Oostendorp RA. Osteoprogenitor SFRP1 prevents exhaustion of hematopoietic stem cells via PP2A-PR72/130-mediated regulation of p300. Haematologica 2022; 108:490-501. [PMID: 35950533 PMCID: PMC9890018 DOI: 10.3324/haematol.2022.280760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Indexed: 02/03/2023] Open
Abstract
Remodeling of the bone marrow microenvironment in chronic inflammation and in aging reduces hematopoietic stem cell (HSC) function. To assess the mechanisms of this functional decline of HSC and find strategies to counteract it, we established a model in which the Sfrp1 gene was deleted in Osterix+ osteolineage cells (OS1Δ/Δ mice). HSC from these mice showed severely diminished repopulating activity with associated DNA damage, enriched expression of the reactive oxygen species pathway and reduced single-cell proliferation. Interestingly, not only was the protein level of Catenin beta-1 (bcatenin) elevated, but so was its association with the phosphorylated co-activator p300 in the nucleus. Since these two proteins play a key role in promotion of differentiation and senescence, we inhibited in vivo phosphorylation of p300 through PP2A-PR72/130 by administration of IQ-1 in OS1Δ/Δ mice. This treatment not only reduced the b-catenin/phosphop300 association, but also decreased nuclear p300. More importantly, in vivo IQ-1 treatment fully restored HSC repopulating activity of the OS1Δ/Δ mice. Our findings show that the osteoprogenitor Sfrp1 is essential for maintaining HSC function. Furthermore, pharmacological downregulation of the nuclear b-catenin/phospho-p300 association is a new strategy to restore poor HSC function.
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Affiliation(s)
- Franziska Hettler
- Technical University of Munich, School of Medicine, Department of Internal Medicine III Hematology/Oncology, Munich, Germany,FH and CS contributed equally as co-first authors
| | - Christina Schreck
- Technical University of Munich, School of Medicine, Department of Internal Medicine III Hematology/Oncology, Munich, Germany,FH and CS contributed equally as co-first authors
| | - Sandra Romero Marquez
- Technical University of Munich, School of Medicine, Department of Internal Medicine III Hematology/Oncology, Munich, Germany
| | - Thomas Engleitner
- Technical University of Munich, School of Medicine, Center for Translational Cancer Research (TranslaTUM), Munich, Germany: ,Technical University of Munich, School of Medicine, Institute of Molecular Oncology and Functional Genomics, Munich, Germany
| | - Baiba Vilne
- Bioinformatics Research Unit, Riga Stradins University Riga, Riga, Latvia,netOmics, Riga, Latvia
| | - Theresa Landspersky
- Technical University of Munich, School of Medicine, Department of Internal Medicine III Hematology/Oncology, Munich, Germany
| | - Heike Weidner
- Bone Lab Dresden, Department of Medicine III & Center for Healthy Aging, Technische Universität Dresden, Dresden, Germany
| | - Renate Hausinger
- Technical University of Munich, School of Medicine, Department of Internal Medicine III Hematology/Oncology, Munich, Germany
| | - Ritu Mishra
- Technical University of Munich, School of Medicine, Center for Translational Cancer Research (TranslaTUM), Munich, Germany: ,School of Medicine, Institute of Clinical Chemistry and Pathobiochemistry, Technical University of Munich, Munich, Germany
| | - Rupert Oellinger
- Technical University of Munich, School of Medicine, Center for Translational Cancer Research (TranslaTUM), Munich, Germany: ,Technical University of Munich, School of Medicine, Institute of Molecular Oncology and Functional Genomics, Munich, Germany
| | - Martina Rauner
- Bone Lab Dresden, Department of Medicine III & Center for Healthy Aging, Technische Universität Dresden, Dresden, Germany
| | - Ronald Naumann
- Max Planck Institute of Molecular Cell Biology and Genetics, Transgenic Core Facility, Dresden, Germany
| | - Christian Peschel
- Technical University of Munich, School of Medicine, Department of Internal Medicine III Hematology/Oncology, Munich, Germany,German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Florian Bassermann
- Technical University of Munich, School of Medicine, Department of Internal Medicine III Hematology/Oncology, Munich, Germany,German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Roland Rad
- Technical University of Munich, School of Medicine, Center for Translational Cancer Research (TranslaTUM), Munich, Germany: ,Technical University of Munich, School of Medicine, Institute of Molecular Oncology and Functional Genomics, Munich, Germany,German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Rouzanna Istvanffy
- Technical University of Munich, School of Medicine, Department of Internal Medicine III Hematology/Oncology, Munich, Germany,Current afliation: Technical University of Munich, School of Medicine, Surgery Department, Munich, Germany
| | - Robert A.J. Oostendorp
- Technical University of Munich, School of Medicine, Department of Internal Medicine III Hematology/Oncology, Munich, Germany,RI and RAJO contributed equally as co-senior authors
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5
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Sunkara RR, Mehta D, Sarate RM, Waghmare SK. BMP-AKT-GSK3β signalling restores hair follicle stem cells decrease associated with loss of Sfrp1. Stem Cells 2022; 40:802-817. [PMID: 35689817 DOI: 10.1093/stmcls/sxac041] [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] [Received: 07/02/2021] [Accepted: 04/05/2022] [Indexed: 11/15/2022]
Abstract
Wnt signaling plays a pivotal role in regulating activation, proliferation, stem cell renewal and differentiation of hair follicle stem cells (HFSCs). Secreted frizzled related protein-1 (Sfrp1), a Wnt antagonist is up regulated in the HFSCs; however, its role in the HFSCs regulation is still obscure. Here, we show that Sfrp1 loss showed a depletion of HFSCs, enhanced HFSC proliferation and faster hair follicle cycle at PD21 to PD28, HFSC markers such as Lgr5 and Axin2 were decreased in both the Sfrp1 +/- and Sfrp1 -/- HFSCs. In addition, the second hair follicle cycle was also faster as compared to WT. Importantly, Sfrp1 -/- showed a restoration of HFSC by 2 nd telogen (PD49), while Sfrp1+/- did not show restoration with still having a decreased HFSC. Infact, restoration of HFSCs was due to a pronounced down-regulation of β-CATENIN activity mediated through a cross-talk of BMP-AKT-GSK3β signalling in Sfrp1-/- as compared to Sfrp1+/-, where down regulation was less pronounced. In cultured keratinocytes, Sfrp1 loss resulted in enhanced proliferation and clonogenicity, which were reversed by treating with either BMPR1A or GSK3β inhibitor thereby confirming BMP-AKT-GSK3β signaling involved in β-CATENIN regulation in both the Sfrp1 +/- and Sfrp1 -/- mice. Our study reveals a novel function of Sfrp1 by unravelling an in vivo molecular mechanism that regulate the HFSCs pool mediated through a hitherto unknown cross-talk of BMP-AKT-GSK3β signalling that maintain stem cell pool balance, which in turn maintain skin tissue homeostasis.
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Affiliation(s)
- Raghava R Sunkara
- Stem Cell Biology Group, Waghmare Lab, Cancer Research Institute, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, Maharashtra, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India
| | - Darshan Mehta
- Stem Cell Biology Group, Waghmare Lab, Cancer Research Institute, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, Maharashtra, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India
| | - Rahul M Sarate
- Stem Cell Biology Group, Waghmare Lab, Cancer Research Institute, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, Maharashtra, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India
| | - Sanjeev K Waghmare
- Stem Cell Biology Group, Waghmare Lab, Cancer Research Institute, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, Maharashtra, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India
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6
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Extramedullary hematopoiesis: mesenchymal stromal cells from spleen provide an in vitro niche for myelopoiesis. In Vitro Cell Dev Biol Anim 2022; 58:429-439. [PMID: 35641778 PMCID: PMC9213314 DOI: 10.1007/s11626-022-00693-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 05/09/2022] [Indexed: 11/05/2022]
Abstract
Murine spleen has been shown to harbour stromal cells that support hematopoiesis with production of myeloid antigen-presenting cells. Similar stromal lines have now been isolated from long-term cultures (LTC) of human spleen. When human progenitor populations from spleen, bone marrow and cord blood were employed as a source of progenitors for co-culture above splenic stromal lines, myelopoiesis was supported. Human splenocytes gave production of predominantly myeloid dendritic-like cells, with minor subsets resembling conventional dendritic cells (cDC) cells, and myeloid or monocyte-derived DC. Human bone marrow progenitors gave rise to myelopoiesis from hematopoietic progenitors, while human cord blood supported limited myelopoiesis from existing myeloid precursors. Transcriptome analysis compared two stromal lines differing in myelopoietic support capacity. Gene profiling revealed both stromal lines to reflect perivascular reticular cells with osteogenic characteristics. However, the 5C6 stroma which failed to support hematopoiesis uniquely expressed several inhibitors of the WNT pathway. Combined data now show that splenic stroma of both human and murine origin provides a mesenchymal stromal cell microenvironment which is WNT pathway-dependent, and which supports in vitro myelopoiesis with production of specific subsets of myeloid and dendritic-like cells.
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7
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Paul S, Balakrishnan S, Arumugaperumal A, Lathakumari S, Syamala SS, Vijayan V, Durairaj SCJ, Arumugaswami V, Sivasubramaniam S. Importance of clitellar tissue in the regeneration ability of earthworm Eudrilus eugeniae. Funct Integr Genomics 2022; 22:1-32. [PMID: 35416560 DOI: 10.1007/s10142-022-00849-5] [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] [Received: 03/29/2021] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 11/04/2022]
Abstract
Among the annelids, earthworms are renowned for their phenomenal ability to regenerate the lost segments. The adult earthworm Eudrilus eugeniae contains 120 segments and the body segments of the earthworm are divided into pre-clitellar, clitellar and post-clitellar segments. The present study denoted that clitellum plays vital role in the successful regeneration of the species. We have performed histological studies to identify among the three skin layers of the earthworm, which cellular layer supports the blastema formation and regeneration of the species. The histological evidences denoted that the proliferation of the longitudinal cell layer at the amputation site is crucial for the successful regeneration of the earthworm and it takes place only in the presence of an intact clitellum. Besides we have performed clitellar transcriptome analysis of the earthworm Eudrilus eugeniae to monitor the key differentially expressed genes and their associated functions and pathways controlling the clitellar tissue changes during both anterior and posterior regeneration of the earthworm. A total of 4707 differentially expressed genes (DEGs) were identified between the control clitellum and clitellum of anterior regenerated earthworms and 4343 DEGs were detected between the control clitellum and clitellum of posterior regenerated earthworms. The functional enrichment analysis confirmed the genes regulating the muscle mass shape and structure were significantly downregulated and the genes associated with response to starvation and anterior-posterior axis specification were significantly upregulated in the clitellar tissue during both anterior and posterior regeneration of the earthworm. The RNA sequencing data of clitellum and the comparative transcriptomic analysis were helpful to understand the complex regeneration process of the earthworm.
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Affiliation(s)
- Sayan Paul
- Department of Biotechnology, Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu, 627012, India.,Centre for Cardiovascular Biology and Disease, Institute for Stem Cell Science and Regenerative Medicine (inStem), Bangalore, 560065, India
| | | | - Arun Arumugaperumal
- Department of Biotechnology, Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu, 627012, India
| | - Saranya Lathakumari
- Department of Biotechnology, Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu, 627012, India
| | - Sandhya Soman Syamala
- Department of Biotechnology, Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu, 627012, India
| | - Vijithkumar Vijayan
- Department of Biotechnology, Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu, 627012, India
| | - Selvan Christyraj Jackson Durairaj
- Department of Biotechnology, Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu, 627012, India.,Centre for Nanoscience and Nanotechnology, Sathyabama Institute of Science and Technology, Chennai, Tamilnadu, 600 119, India
| | | | - Sudhakar Sivasubramaniam
- Department of Biotechnology, Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu, 627012, India.
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8
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Bouali S, Hétu-Arbour R, Gardet C, Heinonen KM. Vangl2 Promotes Hematopoietic Stem Cell Expansion. Front Cell Dev Biol 2022; 10:760248. [PMID: 35399538 PMCID: PMC8987925 DOI: 10.3389/fcell.2022.760248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 02/28/2022] [Indexed: 11/21/2022] Open
Abstract
Regulation of hematopoietic stem cell (HSC) self-renewal and differentiation is essential for their maintenance, and HSC polarity has been shown to play an important role in this regulation. Vangl2, a key component of the Wnt/polarity pathway, is expressed by fetal and adult HSCs, but its role in hematopoiesis and HSC function is unknown. Here we show the deletion of Vangl2 in mouse hematopoietic cells impairs HSC expansion and hematopoietic recovery post-transplant. Old Vangl2-deficient mice showed increased expansion of myeloid-biased multipotent progenitor cells concomitant with splenomegaly. Moreover, Vangl2-deficient cells were not able to effectively reconstitute the recipient bone marrow in serial transplants, or when coming from slightly older donors, demonstrating impaired self-renewal or expansion. Aged Vangl2-deficient HSCs displayed increased levels of cell cycle inhibitor p16INK4a and active β–catenin, which could contribute to their impaired function. Overall, our findings identify Vangl2 as a new regulator of hematopoiesis.
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Affiliation(s)
- Sarah Bouali
- Institut National de La Recherche Scientifique, INRS-Centre Armand-Frappier Santé Biotechnologie, Université du Québec, Laval, QC, Canada
| | - Roxann Hétu-Arbour
- Institut National de La Recherche Scientifique, INRS-Centre Armand-Frappier Santé Biotechnologie, Université du Québec, Laval, QC, Canada
| | - Célia Gardet
- Institut National de La Recherche Scientifique, INRS-Centre Armand-Frappier Santé Biotechnologie, Université du Québec, Laval, QC, Canada
- Institut des Sciences et Industries du Vivant et de l’Environnement - AgroParisTech, Université Paris-Saclay, Paris, France
| | - Krista M. Heinonen
- Institut National de La Recherche Scientifique, INRS-Centre Armand-Frappier Santé Biotechnologie, Université du Québec, Laval, QC, Canada
- *Correspondence: Krista M. Heinonen,
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Fröbel J, Landspersky T, Percin G, Schreck C, Rahmig S, Ori A, Nowak D, Essers M, Waskow C, Oostendorp RAJ. The Hematopoietic Bone Marrow Niche Ecosystem. Front Cell Dev Biol 2021; 9:705410. [PMID: 34368155 PMCID: PMC8339972 DOI: 10.3389/fcell.2021.705410] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 06/28/2021] [Indexed: 12/18/2022] Open
Abstract
The bone marrow (BM) microenvironment, also called the BM niche, is essential for the maintenance of fully functional blood cell formation (hematopoiesis) throughout life. Under physiologic conditions the niche protects hematopoietic stem cells (HSCs) from sustained or overstimulation. Acute or chronic stress deregulates hematopoiesis and some of these alterations occur indirectly via the niche. Effects on niche cells include skewing of its cellular composition, specific localization and molecular signals that differentially regulate the function of HSCs and their progeny. Importantly, while acute insults display only transient effects, repeated or chronic insults lead to sustained alterations of the niche, resulting in HSC deregulation. We here describe how changes in BM niche composition (ecosystem) and structure (remodeling) modulate activation of HSCs in situ. Current knowledge has revealed that upon chronic stimulation, BM remodeling is more extensive and otherwise quiescent HSCs may be lost due to diminished cellular maintenance processes, such as autophagy, ER stress response, and DNA repair. Features of aging in the BM ecology may be the consequence of intermittent stress responses, ultimately resulting in the degeneration of the supportive stem cell microenvironment. Both chronic stress and aging impair the functionality of HSCs and increase the overall susceptibility to development of diseases, including malignant transformation. To understand functional degeneration, an important prerequisite is to define distinguishing features of unperturbed niche homeostasis in different settings. A unique setting in this respect is xenotransplantation, in which human cells depend on niche factors produced by other species, some of which we will review. These insights should help to assess deviations from the steady state to actively protect and improve recovery of the niche ecosystem in situ to optimally sustain healthy hematopoiesis in experimental and clinical settings.
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Affiliation(s)
- Julia Fröbel
- Immunology of Aging, Leibniz Institute on Aging - Fritz Lipmann Institute, Jena, Germany
| | - Theresa Landspersky
- School of Medicine, Department of Internal Medicine III, Technical University of Munich, Munich, Germany
| | - Gülce Percin
- Immunology of Aging, Leibniz Institute on Aging - Fritz Lipmann Institute, Jena, Germany
| | - Christina Schreck
- School of Medicine, Department of Internal Medicine III, Technical University of Munich, Munich, Germany
| | - Susann Rahmig
- Immunology of Aging, Leibniz Institute on Aging - Fritz Lipmann Institute, Jena, Germany
| | - Alessandro Ori
- Proteomics of Aging, Leibniz Institute on Aging - Fritz Lipmann Institute, Jena, Germany
| | - Daniel Nowak
- Department of Hematology and Oncology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Marieke Essers
- Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI-STEM gGmbH), Heidelberg, Germany.,Division Inflammatory Stress in Stem Cells, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Claudia Waskow
- Immunology of Aging, Leibniz Institute on Aging - Fritz Lipmann Institute, Jena, Germany.,Institute of Biochemistry and Biophysics, Faculty of Biological Sciences, Friedrich Schiller University Jena, Jena, Germany.,Department of Medicine III, Technical University Dresden, Dresden, Germany
| | - Robert A J Oostendorp
- School of Medicine, Department of Internal Medicine III, Technical University of Munich, Munich, Germany
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10
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Hausinger R, Hackl M, Jardon Alvarez A, Kehr M, Romero Marquez S, Hettler F, Kehr C, Grziwok S, Schreck C, Peschel C, Istvánffy R, Oostendorp RAJ. Cathepsin K maintains the compartment of bone marrow T lymphocytes in vivo. IMMUNITY INFLAMMATION AND DISEASE 2021; 9:521-532. [PMID: 33592138 PMCID: PMC8127559 DOI: 10.1002/iid3.412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 01/26/2021] [Accepted: 01/28/2021] [Indexed: 01/03/2023]
Abstract
In this study, we investigated the influence of the loss of cathepsin K (Ctsk) gene on the hematopoietic system in vitro and in vivo. We found that cultures with lineage- SCA1+ KIT+ (LSK) cells on Ctsk deficient stromal cells display reduced colony formation and proliferation, with increased differentiation, giving rise to repopulating cells with reduced ability to repopulate the donor LSKs and T cell compartments in the bone marrow (BM). Subsequent in vivo experiments showed impairment of lymphocyte numbers, but, gross effects on early hematopoiesis or myelopoiesis were not found. Most consistently in in vivo experimental settings, we found a significant reduction of (donor) T cell numbers in the BM. Lymphocyte deregulation is also found in transplantation experiments, which revealed that Ctsk is required for optimal regeneration of small populations of T cells, particularly in the BM, but also of thymic B cells. Interestingly, cell nonautonomous Ctsk regulates both B and T cell numbers, but T cell numbers in the BM require an additional autonomous Ctsk-dependent process. Thus, we show that Ctsk is required for the maintenance of hematopoietic stem cells in vitro, but in vivo, Ctsk deficiency most strongly affects lymphocyte homeostasis, particularly of T cells in the BM.
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Affiliation(s)
- Renate Hausinger
- Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Department of Internal Medicine III - Hematology and Oncology, Laboratory of Stem Cell Physiology, Munich, Germany
| | - Marianne Hackl
- Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Department of Internal Medicine III - Hematology and Oncology, Laboratory of Stem Cell Physiology, Munich, Germany
| | - Ana Jardon Alvarez
- Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Department of Internal Medicine III - Hematology and Oncology, Laboratory of Stem Cell Physiology, Munich, Germany
| | - Miriam Kehr
- Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Department of Internal Medicine III - Hematology and Oncology, Laboratory of Stem Cell Physiology, Munich, Germany
| | - Sandra Romero Marquez
- Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Department of Internal Medicine III - Hematology and Oncology, Laboratory of Stem Cell Physiology, Munich, Germany
| | - Franziska Hettler
- Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Department of Internal Medicine III - Hematology and Oncology, Laboratory of Stem Cell Physiology, Munich, Germany
| | - Christian Kehr
- Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Department of Internal Medicine III - Hematology and Oncology, Laboratory of Stem Cell Physiology, Munich, Germany
| | - Sandra Grziwok
- Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Department of Internal Medicine III - Hematology and Oncology, Laboratory of Stem Cell Physiology, Munich, Germany
| | - Christina Schreck
- Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Department of Internal Medicine III - Hematology and Oncology, Laboratory of Stem Cell Physiology, Munich, Germany
| | - Christian Peschel
- Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Department of Internal Medicine III - Hematology and Oncology, Laboratory of Stem Cell Physiology, Munich, Germany.,German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Rouzanna Istvánffy
- Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Department of Internal Medicine III - Hematology and Oncology, Laboratory of Stem Cell Physiology, Munich, Germany
| | - Robert A J Oostendorp
- Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Department of Internal Medicine III - Hematology and Oncology, Laboratory of Stem Cell Physiology, Munich, Germany
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11
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Wu L, Li X, Lin Q, Chowdhury F, Mazumder MH, Du W. FANCD2 and HES1 suppress inflammation-induced PPARɣ to prevent haematopoietic stem cell exhaustion. Br J Haematol 2021; 192:652-663. [PMID: 33222180 PMCID: PMC7856217 DOI: 10.1111/bjh.17230] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/12/2020] [Accepted: 10/16/2020] [Indexed: 12/18/2022]
Abstract
The Fanconi anaemia protein FANCD2 suppresses PPARƔ to maintain haematopoietic stem cell's (HSC) function; however, the underlying mechanism is not known. Here we show that FANCD2 acts in concert with the Notch target HES1 to suppress inflammation-induced PPARƔ in HSC maintenance. Loss of HES1 exacerbates FANCD2-KO HSC defects. However, deletion of HES1 does not cause more severe inflammation-mediated HSC defects in FANCD2-KO mice, indicating that both FANCD2 and HES1 are required for limiting detrimental effects of inflammation on HSCs. Further analysis shows that both FANCD2 and HES1 are required for transcriptional repression of inflammation-activated PPARg promoter. Inflammation orchestrates an overlapping transcriptional programme in HSPCs deficient for FANCD2 and HES1, featuring upregulation of genes in fatty acid oxidation (FAO) and oxidative phosphorylation. Loss of FANCD2 or HES1 augments both basal and inflammation-primed FAO. Targeted inhibition of PPARƔ or the mitochondrial carnitine palmitoyltransferase-1 (CPT1) reduces FAO and ameliorates HSC defects in inflammation-primed HSPCs deleted for FANCD2 or HES1 or both. Finally, depletion of PPARg or CPT1 restores quiescence in these mutant HSCs under inflammatory stress. Our results suggest that this novel FANCD2/HES1/PPARƔ axis may constitute a key component of immunometabolic regulation, connecting inflammation, cellular metabolism and HSC function.
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Affiliation(s)
- Limei Wu
- Department of Pharmaceutical Sciences, School of Pharmacy, West Virginia University
| | - Xue Li
- Department of Pharmaceutical Sciences, School of Pharmacy, West Virginia University
| | - Qiqi Lin
- Department of Pharmaceutical Sciences, School of Pharmacy, West Virginia University
| | - Fabliha Chowdhury
- Department of Pharmaceutical Sciences, School of Pharmacy, West Virginia University
| | - Md H. Mazumder
- Department of Pharmaceutical Sciences, School of Pharmacy, West Virginia University
| | - Wei Du
- Department of Pharmaceutical Sciences, School of Pharmacy, West Virginia University
- Alexander B. Osborn Hematopoietic Malignancy and Transplantation Program, West Virginia University Cancer Institute, Morgantown, WV
- Division of Hematology and Oncology, University of Pittsburgh School of Medicine
- Genome Stability Program, UPMC Hillman Cancer Center, Pittsburgh, PA, USA
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12
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Guan H, Zhang J, Luan J, Xu H, Huang Z, Yu Q, Gou X, Xu L. Secreted Frizzled Related Proteins in Cardiovascular and Metabolic Diseases. Front Endocrinol (Lausanne) 2021; 12:712217. [PMID: 34489867 PMCID: PMC8417734 DOI: 10.3389/fendo.2021.712217] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 07/23/2021] [Indexed: 11/13/2022] Open
Abstract
Abnormal gene expression and secreted protein levels are accompanied by extensive pathological changes. Secreted frizzled related protein (SFRP) family members are antagonistic inhibitors of the Wnt signaling pathway, and they were recently found to be involved in the pathogenesis of a variety of metabolic diseases, which has led to extensive interest in SFRPs. Previous reports highlighted the importance of SFRPs in lipid metabolism, obesity, type 2 diabetes mellitus and cardiovascular diseases. In this review, we provide a detailed introduction of SFRPs, including their structural characteristics, receptors, inhibitors, signaling pathways and metabolic disease impacts. In addition to summarizing the pathologies and potential molecular mechanisms associated with SFRPs, this review further suggests the potential future use of SFRPs as disease biomarkers therapeutic targets.
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Affiliation(s)
- Hua Guan
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Anethesiology, School of Stomatology, Fourth Military Medical University, Xi’an, China
- Shaanxi Key Laboratory of Ischemic Cardiovascular Disease, Institute of Basic and Translational Medicine, Xi’an Medical University, Xi’an, China
| | - Jin Zhang
- Department of Preventive Medicine, School of Stomatology, Fourth Military Medical University, Xi’an, China
| | - Jing Luan
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Anethesiology, School of Stomatology, Fourth Military Medical University, Xi’an, China
- Shaanxi Key Laboratory of Brain Disorders & Institute of Basic and Translational Medicine, Xi’an Medical University, Xi’an, China
| | - Hao Xu
- Institution of Basic Medical Science, Xi’an Medical University, Xi’an, China
| | - Zhenghao Huang
- Shaanxi Key Laboratory of Ischemic Cardiovascular Disease, Institute of Basic and Translational Medicine, Xi’an Medical University, Xi’an, China
| | - Qi Yu
- Shaanxi Key Laboratory of Ischemic Cardiovascular Disease, Institute of Basic and Translational Medicine, Xi’an Medical University, Xi’an, China
| | - Xingchun Gou
- Shaanxi Key Laboratory of Brain Disorders & Institute of Basic and Translational Medicine, Xi’an Medical University, Xi’an, China
- *Correspondence: Lixian Xu, ; Xingchun Gou,
| | - Lixian Xu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Anethesiology, School of Stomatology, Fourth Military Medical University, Xi’an, China
- *Correspondence: Lixian Xu, ; Xingchun Gou,
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13
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Marquez Romero S, Hettler F, Hausinger R, Schreck C, Landspersky T, Henkel L, Angerpointner C, Demir IE, Schiemann M, Bassermann F, Götze KS, Istvánffy R, Oostendorp RAJ. Secreted factors from mouse embryonic fibroblasts maintain repopulating function of single cultured hematopoietic stem cells. Haematologica 2020; 106:2633-2640. [PMID: 33543864 PMCID: PMC8485655 DOI: 10.3324/haematol.2020.249102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Indexed: 11/09/2022] Open
Abstract
Hematopoietic stem cell self-renewal, proliferation, and differentiation are independently regulated by intrinsic as well as extrinsic mechanisms. We previously demonstrated that murine proliferation of hematopoietic stem cells is supported in serum-free medium supplemented with two growth factors, stem cell factor and interleukin 11. The survival of hematopoietic stem cells is additionally improved by supplementing this medium with two more growth factors, neural growth factor and collagen 1 (four growth factors) or serum-free medium conditioned by the hematopoietic stem cell-supportive stromal UG26-1B6 cells1. Here, we describe a robust and versatile alternative source of conditioned medium from mouse embryonic fibroblasts. We found that this conditioned medium supports survival and phenotypical identity of hematopoietic stem cells, as well as cell cycle entry in single cell cultures of CD34- CD48- CD150+ Lineage- SCA1+ KIT+ cells supplemented with two growth factors. Strikingly, in comparison with cultures in serum-free medium with four growth factors, conditioned medium from mouse embryonic fibroblasts increases the numbers of proliferating clones and the number of Lineage- SCA1+ KIT+ cells, both with two and four growth factors. In addition, conditioned medium from mouse embryonic fibroblasts supports self-renewal in culture of cells with short- and long-term hematopoiesis-repopulating ability in vivo. These findings identify conditioned medium from mouse embryonic fibroblasts as a robust alternative serumfree source of factors to maintain self-renewal of in vivo-repopulating hematopoetic stem cells in culture.
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Affiliation(s)
- Sandra Marquez Romero
- Technical University of Munich, Klinikum rechts der Isar, Clinic and Polyclinic for Internal Medicine III, Munich, Germany; Technical University of Munich, Klinikum rechts der Isar, Department of Surgery, Munich
| | - Franziska Hettler
- Technical University of Munich, Klinikum rechts der Isar, Clinic and Polyclinic for Internal Medicine III, Munich
| | - Renate Hausinger
- Technical University of Munich, Klinikum rechts der Isar, Clinic and Polyclinic for Internal Medicine III, Munich
| | - Christina Schreck
- Technical University of Munich, Klinikum rechts der Isar, Clinic and Polyclinic for Internal Medicine III, Munich
| | - Theresa Landspersky
- Technical University of Munich, Klinikum rechts der Isar, Clinic and Polyclinic for Internal Medicine III, Munich
| | - Lynette Henkel
- Technical University of Munich, Flow Cytometry Unit of the Technical University Munich, Institute for Medical Microbiology, Immunology and Hygiene (CyTUM-MIH), Munich
| | - Corinne Angerpointner
- Technical University of Munich, Flow Cytometry Unit of the Technical University Munich, Institute for Medical Microbiology, Immunology and Hygiene (CyTUM-MIH), Munich
| | - Ihsan E Demir
- Technical University of Munich, Klinikum rechts der Isar, Department of Surgery, Munich
| | - Matthias Schiemann
- Technical University of Munich, Flow Cytometry Unit of the Technical University Munich, Institute for Medical Microbiology, Immunology and Hygiene (CyTUM-MIH), Munich
| | - Florian Bassermann
- Technical University of Munich, Klinikum rechts der Isar, Clinic and Polyclinic for Internal Medicine III, Munich, Germany; German Cancer Consortium (DKTK), Heidelberg
| | - Katharina S Götze
- Technical University of Munich, Klinikum rechts der Isar, Clinic and Polyclinic for Internal Medicine III, Munich, Germany; German Cancer Consortium (DKTK), Heidelberg
| | - Rouzanna Istvánffy
- Technical University of Munich, Klinikum rechts der Isar, Clinic and Polyclinic for Internal Medicine III, Munich, Germany; Technical University of Munich, Klinikum rechts der Isar, Department of Surgery, Munich
| | - Robert A J Oostendorp
- Technical University of Munich, Klinikum rechts der Isar, Clinic and Polyclinic for Internal Medicine III, Munich.
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14
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Hettler F, Schreck C, Marquez SR, Sippenauer T, Koller F, Demir E, Bassermann F, Istvanffy R, Oostendorp R. 2010 – MICROENVIRONMENTAL SFRP1 REGULATES REPOPULATING ACTIVITY OF HEMATOPOIETIC STEM CELLS VIA PP2A-MEDIATED REGULATION OF CTNNB1/EP300. Exp Hematol 2020. [DOI: 10.1016/j.exphem.2020.09.172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Desterke C, Petit L, Sella N, Chevallier N, Cabeli V, Coquelin L, Durand C, Oostendorp RAJ, Isambert H, Jaffredo T, Charbord P. Inferring Gene Networks in Bone Marrow Hematopoietic Stem Cell-Supporting Stromal Niche Populations. iScience 2020; 23:101222. [PMID: 32535025 PMCID: PMC7300160 DOI: 10.1016/j.isci.2020.101222] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 03/19/2020] [Accepted: 05/27/2020] [Indexed: 02/07/2023] Open
Abstract
The cardinal property of bone marrow (BM) stromal cells is their capacity to contribute to hematopoietic stem cell (HSC) niches by providing mediators assisting HSC functions. In this study we first contrasted transcriptomes of stromal cells at different developmental stages and then included large number of HSC-supportive and non-supportive samples. Application of a combination of algorithms, comprising one identifying reliable paths and potential causative relationships in complex systems, revealed gene networks characteristic of the BM stromal HSC-supportive capacity and of defined niche populations of perivascular cells, osteoblasts, and mesenchymal stromal cells. Inclusion of single-cell transcriptomes enabled establishing for the perivascular cell subset a partially oriented graph of direct gene-to-gene interactions. As proof of concept we showed that R-spondin-2, expressed by the perivascular subset, synergized with Kit ligand to amplify ex vivo hematopoietic precursors. This study by identifying classifiers and hubs constitutes a resource to unravel candidate BM stromal mediators. A correlation network with predictor genes for the BM HSPC-supportive stromal niche An information theoretic network for the supportive perivascular stromal niche Wnt facilitator Rspo2 together with SCF to amplify ex vivo hematopoietic precursors Resource combining bioinformatics algorithms to search for novel stromal mediators
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Affiliation(s)
| | - Laurence Petit
- Sorbonne Université, UPMC Université Paris 06, IBPS, CNRS UMR7622, Inserm U 1156, Laboratoire de Biologie du Développement; Paris 75005, France
| | - Nadir Sella
- Institut Curie, PSL Research University, CNRS UMR168, Paris, France
| | - Nathalie Chevallier
- IMRB U955-E10, INSERM, Unité d'Ingenierie et de Thérapie Cellulaire- EFS, Université Paris-EST, Créteil, France
| | - Vincent Cabeli
- Institut Curie, PSL Research University, CNRS UMR168, Paris, France
| | - Laura Coquelin
- IMRB U955-E10, INSERM, Unité d'Ingenierie et de Thérapie Cellulaire- EFS, Université Paris-EST, Créteil, France
| | - Charles Durand
- Sorbonne Université, UPMC Université Paris 06, IBPS, CNRS UMR7622, Inserm U 1156, Laboratoire de Biologie du Développement; Paris 75005, France
| | - Robert A J Oostendorp
- Clinic and Polyclinic for Internal Medicine III, Klinikum Rechts der Isar, Technical University Munich, Munich, Germany
| | - Hervé Isambert
- Institut Curie, PSL Research University, CNRS UMR168, Paris, France
| | - Thierry Jaffredo
- Sorbonne Université, UPMC Université Paris 06, IBPS, CNRS UMR7622, Inserm U 1156, Laboratoire de Biologie du Développement; Paris 75005, France
| | - Pierre Charbord
- Sorbonne Université, UPMC Université Paris 06, IBPS, CNRS UMR7622, Inserm U 1156, Laboratoire de Biologie du Développement; Paris 75005, France.
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16
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Esteve P, Crespo I, Kaimakis P, Sandonís A, Bovolenta P. Sfrp1 Modulates Cell-signaling Events Underlying Telencephalic Patterning, Growth and Differentiation. Cereb Cortex 2020; 29:1059-1074. [PMID: 30084950 DOI: 10.1093/cercor/bhy013] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 01/09/2018] [Indexed: 12/19/2022] Open
Abstract
The mammalian dorsal telencephalic neuroepithelium develops-from medial to lateral-into the choroid plaque, cortical hem, hippocampal primordium and isocortex under the influence of Bmp, Wnt and Notch signaling. Correct telencephalic development requires a tight coordination of the extent/duration of these signals, but the identification of possible molecular coordinators is still limited. Here, we postulated that Secreted Frizzled Related Protein 1 (Sfrp1), a multifunctional regulator of Bmp, Wnt and Notch signaling strongly expressed during early telencephalic development, may represent 1 of such molecules. We report that in E10.5-E12.5 Sfrp1-/- embryos, the hem and hippocampal domains are reduced in size whereas the prospective neocortex is medially extended. These changes are associated with a significant reduction of the medio-lateral telencephalic expression of Axin2, a read-out of Wnt/βcatenin signaling activation. Furthermore, in the absence of Sfrp1, Notch signaling is increased, cortical progenitor cell cycle is shorter, with expanded progenitor pools and enhanced generation of early-born neurons. Hence, in postnatal Sfrp1-/- animals the anterior hippocampus is reduced and the neocortex is shorter in the antero-posterior and medio-lateral axis but is thicker. We propose that, by controlling Wnt and Notch signaling in opposite directions, Sfrp1 promotes hippocampal patterning and balances medio-lateral and antero-posterior cortex expansion.
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Affiliation(s)
- Pilar Esteve
- Centro de Biología Molecular "Severo Ochoa", CSIC-UAM and CIBER de Enfermedades Raras (CIBERER), c/Nicolás Cabrera, Madrid, Spain
| | - Inmaculada Crespo
- Centro de Biología Molecular "Severo Ochoa", CSIC-UAM and CIBER de Enfermedades Raras (CIBERER), c/Nicolás Cabrera, Madrid, Spain
| | - Polynikis Kaimakis
- Centro de Biología Molecular "Severo Ochoa", CSIC-UAM and CIBER de Enfermedades Raras (CIBERER), c/Nicolás Cabrera, Madrid, Spain
| | - Africa Sandonís
- Centro de Biología Molecular "Severo Ochoa", CSIC-UAM and CIBER de Enfermedades Raras (CIBERER), c/Nicolás Cabrera, Madrid, Spain
| | - Paola Bovolenta
- Centro de Biología Molecular "Severo Ochoa", CSIC-UAM and CIBER de Enfermedades Raras (CIBERER), c/Nicolás Cabrera, Madrid, Spain
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17
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Al-Sharea A, Lee MKS, Purton LE, Hawkins ED, Murphy AJ. The haematopoietic stem cell niche: a new player in cardiovascular disease? Cardiovasc Res 2020; 115:277-291. [PMID: 30590405 DOI: 10.1093/cvr/cvy308] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 12/17/2018] [Indexed: 02/06/2023] Open
Abstract
Haematopoiesis, the process of blood production, can be altered during the initiation or progression of many diseases. Cardiovascular disease (CVD) has been shown to be heavily influenced by changes to the haematopoietic system, including the types and abundance of immune cells produced. It is now well established that innate immune cells are increased in people with CVD, and the mechanisms contributing to this can be vastly different depending on the risk factors or comorbidities present. Many of these changes begin at the level of the haematopoietic stem and progenitor cells (HSPCs) that reside in the bone marrow (BM). In general, the HSPCs and downstream myeloid progenitors are expanded via increased proliferation in the setting of atherosclerotic CVD. However, HSPCs can also be encouraged to leave the BM and colonise extramedullary sites (i.e. the spleen). Within the BM, HSPCs reside in specialized microenvironments, often referred to as a niche. To date in depth studies assessing the damage or dysregulation that occurs in the BM niche in varying CVDs are scarce. In this review, we provide a general overview of the complex components and interactions within the BM niche and how they influence the function of HSPCs. Additionally, we discuss the main findings regarding changes in the HSPC niche that influence the progression of CVD. We hypothesize that understanding the influence of the BM niche in CVD will aid in delineating new pathways for therapeutic interventions.
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Affiliation(s)
- Annas Al-Sharea
- Division of Immunometabolism, Haematopoiesis and Leukocyte Biology, Baker Heart & Diabetes Institute, 75 Commercial Road, Melbourne, VIC, Australia.,Department of Immunology, Monash University, Melbourne, Australia
| | - Man Kit Sam Lee
- Division of Immunometabolism, Haematopoiesis and Leukocyte Biology, Baker Heart & Diabetes Institute, 75 Commercial Road, Melbourne, VIC, Australia.,Department of Immunology, Monash University, Melbourne, Australia
| | | | - Edwin D Hawkins
- Division of Immunology, Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia
| | - Andrew J Murphy
- Division of Immunometabolism, Haematopoiesis and Leukocyte Biology, Baker Heart & Diabetes Institute, 75 Commercial Road, Melbourne, VIC, Australia.,Department of Immunology, Monash University, Melbourne, Australia
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18
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Morhayim J, Ghebes CA, Erkeland SJ, Ter Borg MND, Hoogenboezem RM, Bindels EMJ, van Alphen FPJ, Kassem M, van Wijnen AJ, Cornelissen JJ, van Leeuwen JP, van der Eerden BCJ, Voermans C, van de Peppel J, Braakman E. Identification of osteolineage cell-derived extracellular vesicle cargo implicated in hematopoietic support. FASEB J 2020; 34:5435-5452. [PMID: 32086861 PMCID: PMC7136136 DOI: 10.1096/fj.201902610r] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 01/31/2020] [Accepted: 02/10/2020] [Indexed: 12/13/2022]
Abstract
Osteolineage cell‐derived extracellular vesicles (EVs) play a regulatory role in hematopoiesis and have been shown to promote the ex vivo expansion of human hematopoietic stem and progenitor cells (HSPCs). Here, we demonstrate that EVs from different human osteolineage sources do not have the same HSPC expansion promoting potential. Comparison of stimulatory and non‐stimulatory osteolineage EVs by next‐generation sequencing and mass spectrometry analyses revealed distinct microRNA and protein signatures identifying EV‐derived candidate regulators of ex vivo HSPC expansion. Accordingly, the treatment of umbilical cord blood‐derived CD34+ HSPCs with stimulatory EVs‐altered HSPC transcriptome, including genes with known roles in cell proliferation. An integrative bioinformatics approach, which connects the HSPC gene expression data with the candidate cargo in stimulatory EVs, delineated the potentially targeted biological functions and pathways during hematopoietic cell expansion and development. In conclusion, our study gives novel insights into the complex biological role of EVs in osteolineage cell‐HSPC crosstalk and promotes the utility of EVs and their cargo as therapeutic agents in regenerative medicine.
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Affiliation(s)
- Jess Morhayim
- Department of Hematology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | | | - Stefan J Erkeland
- Department of Immunology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Mariëtte N D Ter Borg
- Department of Hematology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Remco M Hoogenboezem
- Department of Hematology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Eric M J Bindels
- Department of Hematology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | | | - Moustapha Kassem
- Department of Endocrinology, Odense University Hospital, Odense, Denmark
| | | | - Jan J Cornelissen
- Department of Hematology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Johannes P van Leeuwen
- Department of Internal Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Bram C J van der Eerden
- Department of Internal Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
| | | | - Jeroen van de Peppel
- Department of Internal Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Eric Braakman
- Department of Hematology, Erasmus University Medical Center, Rotterdam, the Netherlands
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19
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Sunkara RR, Sarate RM, Setia P, Shah S, Gupta S, Chaturvedi P, Gera P, Waghmare SK. SFRP1 in Skin Tumor Initiation and Cancer Stem Cell Regulation with Potential Implications in Epithelial Cancers. Stem Cell Reports 2020; 14:271-284. [PMID: 31928951 PMCID: PMC7013199 DOI: 10.1016/j.stemcr.2019.12.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Revised: 12/05/2019] [Accepted: 12/09/2019] [Indexed: 12/30/2022] Open
Abstract
Wnt signaling is involved in the regulation of cancer stem cells (CSCs); however, the molecular mechanism involved is still obscure. SFRP1, a Wnt inhibitor, is downregulated in various human cancers; however, its role in tumor initiation and CSC regulation remains unexplored. Here, we used a skin carcinogenesis model, which showed early tumor initiation in Sfrp1−/− (Sfrp1 knockout) mice and increased tumorigenic potential of Sfrp1−/− CSCs. Expression profiling on Sfrp1−/− CSCs showed upregulation of genes involved in epithelial to mesenchymal transition, stemness, proliferation, and metastasis. Further, SOX-2 and SFRP1 expression was validated in human skin cutaneous squamous cell carcinoma, head and neck squamous cell carcinoma, and breast cancer. The data showed downregulation of SFRP1 and upregulation of SOX-2, establishing their inverse correlation. Importantly, we broadly uncover an inverse correlation of SFRP1 and SOX-2 in epithelial cancers that may be used as a potential prognostic marker in the management of cancer. Loss of Sfrp1 accelerates murine skin tumor initiation and SCC progression Sfrp1 loss enhances in vivo tumorigenic potential of murine skin CSCs We found enhanced EMT and Sox-2 in Sfrp1−/− murine skin SCC Sfrp1 and Sox-2 are inversely correlated in multiple human epithelial cancers
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Affiliation(s)
- Raghava R Sunkara
- Stem Cell Biology Group, Waghmare Lab, Cancer Research Institute, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, Maharashtra 410210, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400085, India
| | - Rahul M Sarate
- Stem Cell Biology Group, Waghmare Lab, Cancer Research Institute, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, Maharashtra 410210, India
| | - Priyanka Setia
- Stem Cell Biology Group, Waghmare Lab, Cancer Research Institute, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, Maharashtra 410210, India
| | - Sanket Shah
- Epigenetics and Chromatin Biology Group, Gupta Lab, Cancer Research Institute, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, Maharashtra 410210, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400085, India
| | - Sanjay Gupta
- Epigenetics and Chromatin Biology Group, Gupta Lab, Cancer Research Institute, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, Maharashtra 410210, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400085, India
| | | | - Poonam Gera
- Cancer Research Institute, ACTREC, Tata Memorial Centre, Kharghar, Navi Mumbai, Maharashtra 410210, India
| | - Sanjeev K Waghmare
- Stem Cell Biology Group, Waghmare Lab, Cancer Research Institute, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, Maharashtra 410210, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400085, India.
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20
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Mariani SA, Li Z, Rice S, Krieg C, Fragkogianni S, Robinson M, Vink CS, Pollard JW, Dzierzak E. Pro-inflammatory Aorta-Associated Macrophages Are Involved in Embryonic Development of Hematopoietic Stem Cells. Immunity 2019; 50:1439-1452.e5. [PMID: 31178352 PMCID: PMC6591003 DOI: 10.1016/j.immuni.2019.05.003] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 03/04/2019] [Accepted: 05/11/2019] [Indexed: 02/04/2023]
Abstract
Hematopoietic stem cells (HSCs) are generated from specialized endothelial cells of the embryonic aorta. Inflammatory factors are implicated in regulating mouse HSC development, but which cells in the aorta-gonad-mesonephros (AGM) microenvironment produce these factors is unknown. In the adult, macrophages play both pro- and anti-inflammatory roles. We sought to examine whether macrophages or other hematopoietic cells found in the embryo prior to HSC generation were involved in the AGM HSC-generative microenvironment. CyTOF analysis of CD45+ AGM cells revealed predominance of two hematopoietic cell types, mannose-receptor positive macrophages and mannose-receptor negative myeloid cells. We show here that macrophage appearance in the AGM was dependent on the chemokine receptor Cx3cr1. These macrophages expressed a pro-inflammatory signature, localized to the aorta, and dynamically interacted with nascent and emerging intra-aortic hematopoietic cells (IAHCs). Importantly, upon macrophage depletion, no adult-repopulating HSCs were detected, thus implicating a role for pro-inflammatory AGM-associated macrophages in regulating the development of HSCs. Yolk-sac-derived macrophages are the most abundant hematopoietic cells in the AGM Cx3cr1 mediates yolk-sac macrophage progenitor recruitment to the AGM niche AGM macrophages dynamically interact with emerging intra-aortic hematopoietic cells Pro-inflammatory AGM macrophages are positive regulators of HSC generation
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Affiliation(s)
| | - Zhuan Li
- Centre for Inflammation Research, The University of Edinburgh, Edinburgh, UK
| | - Siobhan Rice
- Centre for Inflammation Research, The University of Edinburgh, Edinburgh, UK
| | - Carsten Krieg
- Medical University of South Carolina, Charleston, SC, USA
| | | | | | | | | | - Elaine Dzierzak
- Centre for Inflammation Research, The University of Edinburgh, Edinburgh, UK.
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21
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Abstract
PURPOSE OF REVIEW Hematopoietic stem cells (HSCs) reside in specific microenvironments also called niches that regulate HSC functions. Understanding the molecular and cellular mechanisms involved in the crosstalk between HSCs and niche cells is a major issue in stem cell biology and regenerative medicine. The purpose of this review is to discuss recent advances in this field with particular emphasis on the transcriptional landscape of HSC niche cells and the roles of extracellular vesicles (EVs) in the dialog between HSCs and their microenvironments. RECENT FINDINGS The development of high-throughput technologies combined with computational methods has considerably improved our knowledge on the molecular identity of HSC niche cells. Accumulating evidence strongly suggest that the dialog between HSCs and their niches is bidirectional and that EVs play an important role in this process. SUMMARY These advances bring a unique conceptual and methodological framework for understanding the molecular complexity of the HSC niche and identifying novel HSC regulators. They are also promising for exploring the reciprocal influence of HSCs on niche cells and delivering specific molecules to HSCs in regenerative medicine.
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22
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Paciejewska MM, Maijenburg MW, Gilissen C, Kleijer M, Vermeul K, Weijer K, Veltman JA, von Lindern M, van der Schoot CE, Voermans C. Different Balance of Wnt Signaling in Adult and Fetal Bone Marrow-Derived Mesenchymal Stromal Cells. Stem Cells Dev 2017; 25:934-47. [PMID: 27154244 DOI: 10.1089/scd.2015.0263] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Mesenchymal stromal cells (MSCs) are applied as novel therapeutics for their regenerative and immune-suppressive capacities. Clinical applications, however, require extensive expansion of MSCs. Fetal bone marrow-derived MSCs (FBMSCs) proliferate faster than adult bone marrow-derived MSC (ABMSCs). To optimize expansion and function of MSC in general, we explored the differences between ABMSC and FBMSC. Gene expression profiling implicated differential expression of genes encoding proteins in the Wnt signaling pathway, including excreted inhibitors of Wnt signaling, particularly by ABMSC. Both MSC types had a similar basal level of canonical Wnt signaling. Abrogation of autocrine Wnt production by inhibitor of Wnt production-2 (IWP2) reduced canonical Wnt signaling and cell proliferation of FBMSCs, but hardly affected ABMSC. Addition of exogenous Wnt3a, however, induced expression of the target genes lymphocyte enhancer-binding factor (LEF) and T-cell factor (TCF) faster and at lower Wnt3a levels in ABMSC compared to FBMSC. Medium replacement experiments indicated that ABMSC produce an inhibitor of Wnt signaling that is effective on ABMSC itself but not on FBMSC, whereas FBMSC excrete (Wnt) factors that stimulate proliferation of ABMSC. In contrast, FBMSC were not able to support hematopoiesis, whereas ABMSC displayed hematopoietic support sensitive to IWP2, the inhibitor of Wnt factor excretion. In conclusion, ABMSC and FBMSC differ in their Wnt signature. While FBMSC produced factors, including Wnt signals, that enhanced MSC proliferation, ABMSC produced Wnt factors in a setting that enhanced hematopoietic support. Thus, further unraveling the molecular basis of this phenomenon may lead to improvement of clinical expansion protocols of ABMSCs.
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Affiliation(s)
- Maja M Paciejewska
- 1 Department of Hematopoiesis, Sanquin Research, Amsterdam, and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Marijke W Maijenburg
- 1 Department of Hematopoiesis, Sanquin Research, Amsterdam, and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands .,2 Department of Experimental Immunohematology, Sanquin Research, Amsterdam, and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Christian Gilissen
- 3 Department of Human Genetics, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands
| | - Marion Kleijer
- 1 Department of Hematopoiesis, Sanquin Research, Amsterdam, and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Kim Vermeul
- 1 Department of Hematopoiesis, Sanquin Research, Amsterdam, and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Kees Weijer
- 4 Department of Cell Biology and Histology, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Joris A Veltman
- 3 Department of Human Genetics, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands
| | - Marieke von Lindern
- 1 Department of Hematopoiesis, Sanquin Research, Amsterdam, and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands .,5 Department of Hematology, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - C Ellen van der Schoot
- 2 Department of Experimental Immunohematology, Sanquin Research, Amsterdam, and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands .,5 Department of Hematology, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Carlijn Voermans
- 1 Department of Hematopoiesis, Sanquin Research, Amsterdam, and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands .,2 Department of Experimental Immunohematology, Sanquin Research, Amsterdam, and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
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23
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Schreck C, Istvánffy R, Ziegenhain C, Sippenauer T, Ruf F, Henkel L, Gärtner F, Vieth B, Florian MC, Mende N, Taubenberger A, Prendergast Á, Wagner A, Pagel C, Grziwok S, Götze KS, Guck J, Dean DC, Massberg S, Essers M, Waskow C, Geiger H, Schiemann M, Peschel C, Enard W, Oostendorp RAJ. Niche WNT5A regulates the actin cytoskeleton during regeneration of hematopoietic stem cells. J Exp Med 2016; 214:165-181. [PMID: 27998927 PMCID: PMC5206491 DOI: 10.1084/jem.20151414] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 08/25/2016] [Accepted: 11/17/2016] [Indexed: 01/04/2023] Open
Abstract
Schreck et al. show that environmental Wnt5a regulates the transcriptome of HSCs during regeneration, particularly the expression of actin-regulatory mediators. In this manner, the niche affects engraftment through regulation of adhesion, migration, and homing of both normal and malignant cells. Here, we show that the Wnt5a-haploinsufficient niche regenerates dysfunctional HSCs, which do not successfully engraft in secondary recipients. RNA sequencing of the regenerated donor Lin− SCA-1+ KIT+ (LSK) cells shows dysregulated expression of ZEB1-associated genes involved in the small GTPase-dependent actin polymerization pathway. Misexpression of DOCK2, WAVE2, and activation of CDC42 results in apolar F-actin localization, leading to defects in adhesion, migration and homing of HSCs regenerated in a Wnt5a-haploinsufficient microenvironment. Moreover, these cells show increased differentiation in vitro, with rapid loss of HSC-enriched LSK cells. Our study further shows that the Wnt5a-haploinsufficient environment similarly affects BCR-ABLp185 leukemia-initiating cells, which fail to generate leukemia in 42% of the studied recipients, or to transfer leukemia to secondary hosts. Thus, we show that WNT5A in the bone marrow niche is required to regenerate HSCs and leukemic cells with functional ability to rearrange the actin cytoskeleton and engraft successfully.
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Affiliation(s)
- Christina Schreck
- Third Department of Internal Medicine, Klinikum rechts der Isar, Technische Universität München, 81675 Munich, Germany
| | - Rouzanna Istvánffy
- Third Department of Internal Medicine, Klinikum rechts der Isar, Technische Universität München, 81675 Munich, Germany
| | - Christoph Ziegenhain
- Anthropology and Human Genomics, Department of Biology II, Ludwig-Maximilian-Universität, 81377 Munich, Germany
| | - Theresa Sippenauer
- Third Department of Internal Medicine, Klinikum rechts der Isar, Technische Universität München, 81675 Munich, Germany
| | - Franziska Ruf
- Third Department of Internal Medicine, Klinikum rechts der Isar, Technische Universität München, 81675 Munich, Germany
| | - Lynette Henkel
- Department of Medical Microbiology, Immunology, and Hygiene, Technische Universität München, 81675 Munich, Germany
| | - Florian Gärtner
- Department of Internal Medicine I, Ludwig-Maximilian-Universität, 81377 Munich, Germany
| | - Beate Vieth
- Anthropology and Human Genomics, Department of Biology II, Ludwig-Maximilian-Universität, 81377 Munich, Germany
| | | | - Nicole Mende
- Regeneration in Hematopoiesis and Animal Models in Hematopoiesis, Institute for Immunology, TU Dresden, 01309 Dresden, Germany
| | | | - Áine Prendergast
- German Cancer Research Center (DKFZ) and Heidelberg Institute for Stem Cell Technology and Experimental Medicine, 69120 Heidelberg, Germany
| | - Alina Wagner
- Third Department of Internal Medicine, Klinikum rechts der Isar, Technische Universität München, 81675 Munich, Germany
| | - Charlotta Pagel
- Third Department of Internal Medicine, Klinikum rechts der Isar, Technische Universität München, 81675 Munich, Germany
| | - Sandra Grziwok
- Third Department of Internal Medicine, Klinikum rechts der Isar, Technische Universität München, 81675 Munich, Germany
| | - Katharina S Götze
- Third Department of Internal Medicine, Klinikum rechts der Isar, Technische Universität München, 81675 Munich, Germany.,German Cancer Consortium, DKFZ, 69120 Heidelberg, Germany
| | - Jochen Guck
- Biotechnology Center TU Dresden, 01307 Dresden, Germany
| | - Douglas C Dean
- Molecular Targets Program, James Brown Cancer Center, University of Louisville Health Sciences Center, Louisville, KY 40202
| | - Steffen Massberg
- Department of Internal Medicine I, Ludwig-Maximilian-Universität, 81377 Munich, Germany
| | - Marieke Essers
- German Cancer Research Center (DKFZ) and Heidelberg Institute for Stem Cell Technology and Experimental Medicine, 69120 Heidelberg, Germany
| | - Claudia Waskow
- Regeneration in Hematopoiesis and Animal Models in Hematopoiesis, Institute for Immunology, TU Dresden, 01309 Dresden, Germany
| | - Hartmut Geiger
- Institute of Molecular Medicine, University of Ulm, 89081 Ulm, Germany
| | - Mathias Schiemann
- Department of Medical Microbiology, Immunology, and Hygiene, Technische Universität München, 81675 Munich, Germany
| | - Christian Peschel
- Third Department of Internal Medicine, Klinikum rechts der Isar, Technische Universität München, 81675 Munich, Germany.,German Cancer Consortium, DKFZ, 69120 Heidelberg, Germany
| | - Wolfgang Enard
- Anthropology and Human Genomics, Department of Biology II, Ludwig-Maximilian-Universität, 81377 Munich, Germany
| | - Robert A J Oostendorp
- Third Department of Internal Medicine, Klinikum rechts der Isar, Technische Universität München, 81675 Munich, Germany
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24
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Bhavanasi D, Klein PS. Wnt Signaling in Normal and Malignant Stem Cells. CURRENT STEM CELL REPORTS 2016; 2:379-387. [PMID: 28503404 DOI: 10.1007/s40778-016-0068-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Wnt signaling plays important roles in stem cell self-renewal and differentiation in adults as well as in embryonic development. Mutations that activate canonical Wnt/β-catenin signaling also initiate and maintain several cancer states, including colorectal cancer and leukemia, and hence Wnt inhibitors are currently being explored as therapeutic options. In this review, we summarize previous studies and update recent findings on canonical Wnt signaling and its components, as well as their roles in somatic stem cell homeostasis and maintenance of cancer initiating cells.
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Affiliation(s)
- Dheeraj Bhavanasi
- Department of Medicine (Hematology-Oncology), University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA
| | - Peter S Klein
- Department of Medicine (Hematology-Oncology), University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA.,Cell and Molecular Biology Graduate Group, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA
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25
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Ruf F, Schreck C, Wagner A, Grziwok S, Pagel C, Romero S, Kieslinger M, Shimono A, Peschel C, Götze KS, Istvanffy R, Oostendorp RAJ. Loss of Sfrp2 in the Niche Amplifies Stress-Induced Cellular Responses, and Impairs the In Vivo Regeneration of the Hematopoietic Stem Cell Pool. Stem Cells 2016; 34:2381-92. [PMID: 27299503 DOI: 10.1002/stem.2416] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 04/15/2016] [Accepted: 04/29/2016] [Indexed: 12/30/2022]
Abstract
Sfrp2 is overexpressed in stromal cells which maintain hematopoietic stem cells (HSCs) during in vitro culture. We here showed, that coculture of hematopoetic cells with stromal cells with reduced expression of Sfrp2 increases the number lineage-negative Kit(+) Sca-1(+) (LSK) and progenitor cells in vitro. The LSK cells from these cocultures showed activation of canonical Wnt signaling, higher levels of Ki-67, BrdU incorporation, and the number of γH2A.X positive foci. Total repopulating activity of these cultures was, however, diminished, indicating loss of HSC. To extend these in vitro data, we modelled stress in vivo, i.e., by aging, or 5-FU treatment in Sfrp2(-) (/) (-) mice, or replicative stress in regeneration of HSCs in Sfrp2(-) (/) (-) recipients. In all three in vivo stress situations, we noted an increase of LSK cells, characterized by increased levels of β-catenin and cyclin D1. In the transplantation experiments, the increase in LSK cells in primary recipients was subsequently associated with a progressive loss of HSCs in serial transplantations. Similar to the in vitro coculture stress, in vivo genotoxic stress in 5-FU-treated Sfrp2(-) (/) (-) mice increased cell cycle activity of LSK cells with higher levels of BrdU incorporation, increased expression of Ki-67, and canonical Wnt signaling. Importantly, as noted in vitro, increased cycling of LSKs in vivo was accompanied by a defective γH2A.X-dependent DNA damage response and depolarized localization of acetylated H4K16. Our experiments support the view that Sfrp2 expression in the niche is required to maintain the HSC pool by limiting stress-induced DNA damage and attenuating canonical Wnt-mediated HSC activation. Stem Cells 2016;34:2381-2392.
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Affiliation(s)
- Franziska Ruf
- 3rd Department of Internal Medicine, Klinikum Rechts Der Isar, Technische Universität München, Munich, Germany
| | - Christina Schreck
- 3rd Department of Internal Medicine, Klinikum Rechts Der Isar, Technische Universität München, Munich, Germany
| | - Alina Wagner
- 3rd Department of Internal Medicine, Klinikum Rechts Der Isar, Technische Universität München, Munich, Germany
| | - Sandra Grziwok
- 3rd Department of Internal Medicine, Klinikum Rechts Der Isar, Technische Universität München, Munich, Germany
| | - Charlotta Pagel
- 3rd Department of Internal Medicine, Klinikum Rechts Der Isar, Technische Universität München, Munich, Germany
| | - Sandra Romero
- 3rd Department of Internal Medicine, Klinikum Rechts Der Isar, Technische Universität München, Munich, Germany
| | - Matthias Kieslinger
- Institute of Medical Genetics, Medical University of Vienna, Vienna, Austria
| | - Akihiko Shimono
- RIKEN Center for Developmental Biology, Kobe 650-0047, Japan
| | - Christian Peschel
- 3rd Department of Internal Medicine, Klinikum Rechts Der Isar, Technische Universität München, Munich, Germany.,German Cancer Consortium (DKTK) and the German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Katharina S Götze
- 3rd Department of Internal Medicine, Klinikum Rechts Der Isar, Technische Universität München, Munich, Germany.,German Cancer Consortium (DKTK) and the German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Rouzanna Istvanffy
- 3rd Department of Internal Medicine, Klinikum Rechts Der Isar, Technische Universität München, Munich, Germany
| | - Robert A J Oostendorp
- 3rd Department of Internal Medicine, Klinikum Rechts Der Isar, Technische Universität München, Munich, Germany.
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26
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Stroma-Derived Connective Tissue Growth Factor Maintains Cell Cycle Progression and Repopulation Activity of Hematopoietic Stem Cells In Vitro. Stem Cell Reports 2015; 5:702-715. [PMID: 26527384 PMCID: PMC4649380 DOI: 10.1016/j.stemcr.2015.09.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 09/21/2015] [Accepted: 09/22/2015] [Indexed: 02/08/2023] Open
Abstract
Hematopoietic stem cells (HSCs) are preserved in co-cultures with UG26-1B6 stromal cells or their conditioned medium. We performed a genome-wide study of gene expression changes of UG26-1B6 stromal cells in contact with Lineage⁻ SCA-1⁺ KIT⁺ (LSK) cells. This analysis identified connective tissue growth factor (CTGF) to be upregulated in response to LSK cells. We found that co-culture of HSCs on CTGF knockdown stroma (shCtgf) shows impaired engraftment and long-term quality. Further experiments demonstrated that CD34⁻ CD48⁻ CD150⁺ LSK (CD34⁻ SLAM) cell numbers from shCtgf co-cultures increase in G0 and senescence and show delayed time to first cell division. To understand this observation, a CTGF signaling network model was assembled, which was experimentally validated. In co-culture experiments of CD34⁻ SLAM cells with shCtgf stromal cells, we found that SMAD2/3-dependent signaling was activated, with increasing p27(Kip1) expression and downregulating cyclin D1. Our data support the view that LSK cells modulate gene expression in the niche to maintain repopulating HSC activity.
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27
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Li Y, Dürig J, Göbel M, Hanoun M, Klein-Hitpaß L, Dührsen U. Functional abnormalities and changes in gene expression in fibroblasts and macrophages from the bone marrow of patients with acute myeloid leukemia. Int J Hematol 2015; 102:278-88. [DOI: 10.1007/s12185-015-1833-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2015] [Revised: 06/09/2015] [Accepted: 06/18/2015] [Indexed: 12/19/2022]
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28
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Yokota T, Oritani K, Sudo T, Ishibashi T, Doi Y, Habuchi Y, Ichii M, Fukushima K, Okuzaki D, Tomizuka K, Yamawaki K, Kakitani M, Shimono A, Morii E, Kincade PW, Kanakura Y. Estrogen-inducible sFRP5 inhibits early B-lymphopoiesis in vivo, but not during pregnancy. Eur J Immunol 2015; 45:1390-401. [PMID: 25676235 DOI: 10.1002/eji.201444939] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 01/11/2015] [Accepted: 02/10/2015] [Indexed: 12/27/2022]
Abstract
Mammals have evolved to protect their offspring during early fetal development. Elaborated mechanisms induce tolerance in the maternal immune system for the fetus. Female hormones, mainly estrogen, play a role in suppressing maternal lymphopoiesis. However, the molecular mechanisms involved in the maternal immune tolerance are largely unknown. Here, we show that estrogen-induced soluble Frizzled-related proteins (sFRPs), and particularly sFRP5, suppress B-lymphopoiesis in vivo in transgenic mice. Mice overexpressing sFRP5 had fewer B-lymphocytes in the peripheral blood and spleen. High levels of sFRP5 inhibited early B-cell differentiation in the bone marrow (BM), resulting in the accumulation of cells with a common lymphoid progenitor (CLP) phenotype. Conversely, sFRP5 deficiency reduced the number of hematopoietic stem cells (HSCs) and primitive lymphoid progenitors in the BM, particularly when estrogen was administered. Furthermore, a significant reduction in CLPs and B-lineage-committed progenitors was observed in the BM of sfrp5-null pregnant females. We concluded that, although high sFRP5 expression inhibits B-lymphopoiesis in vivo, physiologically, it contributes to the preservation of very primitive lymphopoietic progenitors, including HSCs, under high estrogen levels. Thus, sFRP5 regulates early lympho-hematopoiesis in the maternal BM, but the maternal-fetal immune tolerance still involves other molecular mechanisms that remain to be uncovered.
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Affiliation(s)
- Takafumi Yokota
- Department of Hematology and Oncology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Kenji Oritani
- Department of Hematology and Oncology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Takao Sudo
- Department of Hematology and Oncology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Tomohiko Ishibashi
- Department of Hematology and Oncology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yukiko Doi
- Department of Hematology and Oncology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yoko Habuchi
- Department of Hematology and Oncology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Michiko Ichii
- Department of Hematology and Oncology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Kentaro Fukushima
- Department of Hematology and Oncology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Daisuke Okuzaki
- DNA-chip Development Center for Infectious Diseases, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | - Kazuma Tomizuka
- Kyowa Hakko Kirin California, Inc. Research Divisions, CA, USA
| | - Kengo Yamawaki
- Kyowa Hakko Kirin Co, Ltd. Biologics Research Laboratories, Research Division, Machida, Tokyo, Japan
| | - Makoto Kakitani
- Kyowa Hakko Kirin Co, Ltd. Bio Process Research and Development Laboratories, Takasaki, Gunma, Japan
| | | | - Eiichi Morii
- Department of Pathology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Paul W Kincade
- Immunobiology and Cancer Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Yuzuru Kanakura
- Department of Hematology and Oncology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
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29
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Toscani D, Bolzoni M, Accardi F, Aversa F, Giuliani N. The osteoblastic niche in the context of multiple myeloma. Ann N Y Acad Sci 2014; 1335:45-62. [DOI: 10.1111/nyas.12578] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Denise Toscani
- Myeloma Unit, Department of Clinical and Experimental Medicine; University of Parma; Parma Italy
| | - Marina Bolzoni
- Myeloma Unit, Department of Clinical and Experimental Medicine; University of Parma; Parma Italy
| | - Fabrizio Accardi
- Myeloma Unit, Department of Clinical and Experimental Medicine; University of Parma; Parma Italy
| | - Franco Aversa
- Myeloma Unit, Department of Clinical and Experimental Medicine; University of Parma; Parma Italy
| | - Nicola Giuliani
- Myeloma Unit, Department of Clinical and Experimental Medicine; University of Parma; Parma Italy
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30
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Bulycheva E, Rauner M, Medyouf H, Theurl I, Bornhäuser M, Hofbauer LC, Platzbecker U. Myelodysplasia is in the niche: novel concepts and emerging therapies. Leukemia 2014; 29:259-68. [PMID: 25394715 PMCID: PMC4320287 DOI: 10.1038/leu.2014.325] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Accepted: 09/25/2014] [Indexed: 12/28/2022]
Abstract
Myelodysplastic syndromes (MDSs) represent clonal disorders mainly of the elderly that are characterized by ineffective hematopoiesis and an increased risk of transformation into acute myeloid leukemia. The pathogenesis of MDS is thought to evolve from accumulation and selection of specific genetic or epigenetic events. Emerging evidence indicates that MDS is not solely a hematopoietic disease but rather affects the entire bone marrow microenvironment, including bone metabolism. Many of these cells, in particular mesenchymal stem and progenitor cells (MSPCs) and osteoblasts, express a number of adhesion molecules and secreted factors that regulate blood regeneration throughout life by contributing to hematopoietic stem and progenitor cell (HSPC) maintenance, self-renewal and differentiation. Several endocrine factors, such as erythropoietin, parathyroid hormone and estrogens, as well as deranged iron metabolism modulate these processes. Thus, interactions between MSPC and HSPC contribute to the pathogenesis of MDS and associated pathologies. A detailed understanding of these mechanisms may help to define novel targets for diagnosis and possibly therapy. In this review, we will discuss the scientific rationale of ‘osteohematology' as an emerging research field in MDS and outline clinical implications.
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Affiliation(s)
- E Bulycheva
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl-Gustav-Carus, Technische Universität, Dresden, Germany
| | - M Rauner
- Medizinische Klinik und Poliklinik III, Universitätsklinikum Carl-Gustav-Carus, Technische Universität, Dresden, Germany
| | - H Medyouf
- Georg-Speyer-Haus, Institut for Tumor Biology and Experimental Therapy, 60596, Frankfurt am Main, Germany
| | - I Theurl
- Department of Internal Medicine VI, Medical University of Innsbruck, Innsbruck, Austria
| | - M Bornhäuser
- 1] Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl-Gustav-Carus, Technische Universität, Dresden, Germany [2] Center for Regenerative Therapies Dresden, Technical University, Dresden, Germany
| | - L C Hofbauer
- 1] Medizinische Klinik und Poliklinik III, Universitätsklinikum Carl-Gustav-Carus, Technische Universität, Dresden, Germany [2] Center for Regenerative Therapies Dresden, Technical University, Dresden, Germany
| | - U Platzbecker
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl-Gustav-Carus, Technische Universität, Dresden, Germany
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31
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Charbord P, Pouget C, Binder H, Dumont F, Stik G, Levy P, Allain F, Marchal C, Richter J, Uzan B, Pflumio F, Letourneur F, Wirth H, Dzierzak E, Traver D, Jaffredo T, Durand C. A systems biology approach for defining the molecular framework of the hematopoietic stem cell niche. Cell Stem Cell 2014; 15:376-391. [PMID: 25042701 DOI: 10.1016/j.stem.2014.06.005] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 04/04/2014] [Accepted: 06/06/2014] [Indexed: 12/20/2022]
Abstract
Despite progress in identifying the cellular composition of hematopoietic stem/progenitor cell (HSPC) niches, little is known about the molecular requirements of HSPC support. To address this issue, we used a panel of six recognized HSPC-supportive stromal lines and less-supportive counterparts originating from embryonic and adult hematopoietic sites. Through comprehensive transcriptomic meta-analyses, we identified 481 mRNAs and 17 microRNAs organized in a modular network implicated in paracrine signaling. Further inclusion of 18 additional cell strains demonstrated that this mRNA subset was predictive of HSPC support. Our gene set contains most known HSPC regulators as well as a number of unexpected ones, such as Pax9 and Ccdc80, as validated by functional studies in zebrafish embryos. In sum, our approach has identified the core molecular network required for HSPC support. These cues, along with a searchable web resource, will inform ongoing efforts to instruct HSPC ex vivo amplification and formation from pluripotent precursors.
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Affiliation(s)
- Pierre Charbord
- INSERM U972, University Paris 11, Hôpital Paul Brousse, 94807 Villejuif, France.
| | - Claire Pouget
- Department of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA 92093-0380, USA
| | - Hans Binder
- Interdisciplinary Center for Bioinformatics, University of Leipzig, 04107 Leipzig, Germany
| | - Florent Dumont
- Genomic Platform, Institut Cochin, INSERM U567, 75014 Paris, France
| | - Grégoire Stik
- Sorbonne Universités, UPMC Paris 06, IBPS, UMR 7622, Laboratoire de Biologie du Développement, 75005 Paris; CNRS, INSERM U1156, IBPS, UMR 7622, Laboratoire de Biologie du Développement, 75005 Paris, France
| | - Pacifique Levy
- Sorbonne Universités, UPMC Paris 06, IBPS, UMR 7622, Laboratoire de Biologie du Développement, 75005 Paris; CNRS, INSERM U1156, IBPS, UMR 7622, Laboratoire de Biologie du Développement, 75005 Paris, France
| | - Fabrice Allain
- Sorbonne Universités, UPMC Paris 06, IBPS, UMR 7622, Laboratoire de Biologie du Développement, 75005 Paris; CNRS, INSERM U1156, IBPS, UMR 7622, Laboratoire de Biologie du Développement, 75005 Paris, France
| | - Céline Marchal
- Sorbonne Universités, UPMC Paris 06, IBPS, UMR 7622, Laboratoire de Biologie du Développement, 75005 Paris; CNRS, INSERM U1156, IBPS, UMR 7622, Laboratoire de Biologie du Développement, 75005 Paris, France
| | - Jenna Richter
- Department of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA 92093-0380, USA
| | - Benjamin Uzan
- UMR967 INSERM, LSHL/IRCM, CEA, University Paris 7, 92260 Fontenay-aux-Roses, France
| | - Françoise Pflumio
- UMR967 INSERM, LSHL/IRCM, CEA, University Paris 7, 92260 Fontenay-aux-Roses, France
| | | | - Henry Wirth
- Interdisciplinary Center for Bioinformatics, University of Leipzig, 04107 Leipzig, Germany
| | - Elaine Dzierzak
- Department of Cell Biology, Erasmus Stem Cell Institute, Erasmus Medical Center, P.O. Box 2040, 3000 CA Rotterdam, the Netherlands
| | - David Traver
- Department of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA 92093-0380, USA
| | - Thierry Jaffredo
- Sorbonne Universités, UPMC Paris 06, IBPS, UMR 7622, Laboratoire de Biologie du Développement, 75005 Paris; CNRS, INSERM U1156, IBPS, UMR 7622, Laboratoire de Biologie du Développement, 75005 Paris, France
| | - Charles Durand
- Sorbonne Universités, UPMC Paris 06, IBPS, UMR 7622, Laboratoire de Biologie du Développement, 75005 Paris; CNRS, INSERM U1156, IBPS, UMR 7622, Laboratoire de Biologie du Développement, 75005 Paris, France.
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32
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Smith JNP, Calvi LM. Concise review: Current concepts in bone marrow microenvironmental regulation of hematopoietic stem and progenitor cells. Stem Cells 2014; 31:1044-50. [PMID: 23509002 DOI: 10.1002/stem.1370] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Accepted: 01/29/2013] [Indexed: 12/20/2022]
Abstract
Hematopoietic stem cell (HSC) behavior is governed in large part by interactions of the blood system with the bone microenvironment. Increasing evidence demonstrates the profound role the local HSC microenvironment or niche plays in normal stem cell function, in therapeutic activation and in the setting of malignancy. A number of cellular and molecular components of the microenvironment have been identified thus far, several of which are likely to provide exciting therapeutic targets in the near future. Clinically effective strategies for niche manipulation, however, require careful study of the interaction of these niche components. Some of the key findings defining these regulatory interactions are explored in this concise review, with special emphasis on potential translational applications.
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Affiliation(s)
- Julianne N P Smith
- Department of Pathology and Laboratory MedicineUniversity of Rochester School of Medicine, Rochester, New York 14642, USA
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33
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Greim H, Kaden DA, Larson RA, Palermo CM, Rice JM, Ross D, Snyder R. The bone marrow niche, stem cells, and leukemia: impact of drugs, chemicals, and the environment. Ann N Y Acad Sci 2014; 1310:7-31. [PMID: 24495159 PMCID: PMC4002179 DOI: 10.1111/nyas.12362] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Hematopoietic stem cells (HSCs) are a unique population of somatic stem cells that can both self-renew for long-term reconstitution of HSCs and differentiate into hematopoietic progenitor cells (HPCs), which in turn give rise, in a hierarchical manner, to the entire myeloid and lymphoid lineages. The differentiation and maturation of these lineages occurs in the bone marrow (BM) niche, a microenvironment that regulates self-renewal, survival, differentiation, and proliferation, with interactions among signaling pathways in the HSCs and the niche required to establish and maintain homeostasis. The accumulation of genetic mutations and cytogenetic abnormalities within cells of the partially differentiated myeloid lineage, particularly as a result of exposure to benzene or cytotoxic anticancer drugs, can give rise to malignancies like acute myeloid leukemia and myelodysplastic syndrome. Better understanding of the mechanisms driving these malignancies and susceptibility factors, both within HPCs and cells within the BM niche, may lead to the development of strategies for prevention of occupational and cancer therapy-induced disease.
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34
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Schreck C, Bock F, Grziwok S, Oostendorp RAJ, Istvánffy R. Regulation of hematopoiesis by activators and inhibitors of Wnt signaling from the niche. Ann N Y Acad Sci 2014; 1310:32-43. [PMID: 24611828 DOI: 10.1111/nyas.12384] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Hematopoietic stem cells (HSCs) are a rare population of somatic stem cells that have the ability to regenerate the entire mature blood system in a hierarchical way for the duration of an adult life. Adult HSCs reside in the bone marrow niche. Different niche cell types and molecules regulate the balance of HSC dormancy and activation as well as HSC behavior in both normal and malignant hematopoiesis. Here, we describe the interplay of HSCs and their niche, in particular the involvement of the Wnt signaling pathway. Although the prevailing notion has been that malignant transformation of HSCs is the main cause of leukemia, evidence is mounting that disruption of niche regulation by transformed hematopoietic cells, which may overexpress Wnt signaling or intrinsic stromal defects in gene expression, is at least a collaborative factor in leukemogenesis. Thus, insights into the normal and altered functions of niche components will help to obtain a better understanding of normal and malignant hematopoiesis and how environmental factors affect these processes.
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Affiliation(s)
- Christina Schreck
- III. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar der Technischen Universität München, Munich, Germany
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35
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Sfrp1a and Sfrp5 function as positive regulators of Wnt and BMP signaling during early retinal development. Dev Biol 2014; 388:192-204. [PMID: 24457098 DOI: 10.1016/j.ydbio.2014.01.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Revised: 12/16/2013] [Accepted: 01/13/2014] [Indexed: 01/08/2023]
Abstract
Axial patterning of the developing eye is critically important for proper axonal pathfinding as well as for key morphogenetic events, such as closure of the optic fissure. The dorsal retina is initially specified by the actions of Bone Morphogenetic Protein (BMP) signaling, with such identity subsequently maintained by the Wnt-β catenin pathway. Using zebrafish as a model system, we demonstrate that Secreted frizzled-related protein 1a (Sfrp1a) and Sfrp5 work cooperatively to pattern the retina along the dorso-ventral axis. Sfrp1a/5 depleted embryos display a reduction in dorsal marker gene expression that is consistent with defects in BMP- and Wnt-dependent dorsal retina identity. In accord with this finding, we observe a marked reduction in transgenic reporters of BMP and Wnt signaling within the dorsal retina of Sfrp1a/5 depleted embryos. In contrast to studies in which canonical Wnt signaling is blocked, we note an increase in BMP ligand expression in Sfrp1a/5 depleted embryos, a phenotype similar to that seen in embryos with inhibited BMP signaling. Overexpression of a low dose of sfrp5 mRNA causes an increase in dorsal retina marker gene expression. We propose a model in which Sfrp proteins function as facilitators of both BMP and Wnt signaling within the dorsal retina.
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36
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Jaffredo T, Lempereur A, Richard C, Bollerot K, Gautier R, Canto PY, Drevon C, Souyri M, Durand C. Dorso-ventral contributions in the formation of the embryonic aorta and the control of aortic hematopoiesis. Blood Cells Mol Dis 2013; 51:232-8. [DOI: 10.1016/j.bcmd.2013.07.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Accepted: 06/29/2013] [Indexed: 01/08/2023]
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37
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Rossi L, Lin KK, Boles NC, Yang L, King KY, Jeong M, Mayle A, Goodell MA. Less is more: unveiling the functional core of hematopoietic stem cells through knockout mice. Cell Stem Cell 2013; 11:302-17. [PMID: 22958929 DOI: 10.1016/j.stem.2012.08.006] [Citation(s) in RCA: 149] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Hematopoietic stem cells (HSCs) represent one of the first recognized somatic stem cell types. As such, nearly 200 genes have been examined for roles in HSC function in knockout mice. In this review, we compile the majority of these reports to provide a broad overview of the functional modules revealed by these genetic analyses and highlight some key regulatory pathways involved, including cell cycle control, Tgf-β signaling, Pten/Akt signaling, Wnt signaling, and cytokine signaling. Finally, we propose recommendations for characterization of HSC function in knockout mice to facilitate cross-study comparisons that would generate a more cohesive picture of HSC biology.
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Affiliation(s)
- Lara Rossi
- Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, TX 77030, USA
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38
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Istvanffy R, Oostendorp RAJ. Generation and establishment of murine adherent cell lines. Methods Mol Biol 2013. [PMID: 23179840 DOI: 10.1007/978-1-62703-128-8_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
We describe a method to derive cell lines and clones from cells of the murine midgestation aorta-gonads-mesonephros (AGM) microenvironment. We start from subdissected AGM regions in "explant" or "single cell suspension" type cultures from embryos transgenic for tsA58, a temperature-sensitive mutant of the SV40 T antigen gene. The number of cells in such cultures initially expand, but in most cases, this expansion phase is followed by a stable or even decline in cell number. After this so-called crisis phase, cell proliferation is noticeable in more than 90% of the cultures. Stromal cell clones can be isolated from these cultures, some of which have been cultured for more than 50 population doublings, and functionally characterized using various methods These stromal cell clones are valuable tools for the study of the regulation of hematopoietic stem and progenitor cells in the midgestation mouse embryo.
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Affiliation(s)
- Rouzanna Istvanffy
- The Stem Cell Physiology Laboratory, Medizinische Klinik, Technische Universität München, Munich, Germany
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39
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Raman R, Kumar RS, Hinge A, Kumar S, Nayak R, Xu J, Szczur K, Cancelas JA, Filippi MD. p190-B RhoGAP regulates the functional composition of the mesenchymal microenvironment. Leukemia 2013; 27:2209-19. [PMID: 23563238 PMCID: PMC3919554 DOI: 10.1038/leu.2013.103] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Revised: 03/29/2013] [Accepted: 03/29/2013] [Indexed: 12/22/2022]
Abstract
Hematopoiesis is regulated by components of the microenvironment, so-called niche. Here, we show that p190-B GTPase-activating protein (p190-B) deletion in mice causes hematopoietic failure during ontogeny, in p190-B(-/-) fetal liver and bones, and in p190-B(+/-) adult bones and spleen. These defects are non-cell autonomous, as we previously showed that transplantation of p190-B(-/-) hematopoietic cells into wild-type (WT) hosts leads to normal hematopoiesis. Coculture of mesenchymal stem (MSC)/progenitor cells and wild-type bone marrow (BM) cells reveals that p190-B(-/-) MSCs are dysfunctional in supporting hematopoiesis owing to impaired Wnt signaling. Furthermore, p190-B loss causes alteration in BM niche composition, including abnormal colony-forming unit (CFU)-fibroblast, CFU-adipocyte and CFU-osteoblast numbers. This is due to altered MSC lineage fate specification to osteoblast and adipocyte lineages. Thus, p190-B organizes a functional mesenchymal/microenvironment for normal hematopoiesis during development.
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Affiliation(s)
- R Raman
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Research Foundation, University of Cincinnati College of Medicine, Cincinnati, OH, USA
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40
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WNT signaling in bone homeostasis and disease: from human mutations to treatments. Nat Med 2013; 19:179-92. [PMID: 23389618 DOI: 10.1038/nm.3074] [Citation(s) in RCA: 1448] [Impact Index Per Article: 131.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Accepted: 12/18/2012] [Indexed: 12/11/2022]
Abstract
Low bone mass and strength lead to fragility fractures, for example, in elderly individuals affected by osteoporosis or children with osteogenesis imperfecta. A decade ago, rare human mutations affecting bone negatively (osteoporosis-pseudoglioma syndrome) or positively (high-bone mass phenotype, sclerosteosis and Van Buchem disease) have been identified and found to all reside in components of the canonical WNT signaling machinery. Mouse genetics confirmed the importance of canonical Wnt signaling in the regulation of bone homeostasis, with activation of the pathway leading to increased, and inhibition leading to decreased, bone mass and strength. The importance of WNT signaling for bone has also been highlighted since then in the general population in numerous genome-wide association studies. The pathway is now the target for therapeutic intervention to restore bone strength in millions of patients at risk for fracture. This paper reviews our current understanding of the mechanisms by which WNT signalng regulates bone homeostasis.
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41
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Cain CJ, Manilay JO. Hematopoietic stem cell fate decisions are regulated by Wnt antagonists: Comparisons and current controversies. Exp Hematol 2013; 41:3-16. [DOI: 10.1016/j.exphem.2012.09.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Revised: 08/31/2012] [Accepted: 09/05/2012] [Indexed: 12/19/2022]
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42
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Signaling from the sympathetic nervous system regulates hematopoietic stem cell emergence during embryogenesis. Cell Stem Cell 2012; 11:554-66. [PMID: 23040481 PMCID: PMC3510442 DOI: 10.1016/j.stem.2012.07.002] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2011] [Revised: 04/25/2012] [Accepted: 07/02/2012] [Indexed: 02/02/2023]
Abstract
The first adult-repopulating hematopoietic stem cells (HSCs) emerge in the aorta-gonads-mesonephros (AGM) region of the embryo. We have recently identified the transcription factor Gata3 as being upregulated in this tissue specifically at the time of HSC emergence. We now demonstrate that the production of functional and phenotypic HSCs in the AGM is impaired in the absence of Gata3. Furthermore, we show that this effect on HSC generation is secondary to the role of Gata3 in the production of catecholamines, the mediators of the sympathetic nervous system (SNS), thus making these molecules key components of the AGM HSC niche. These findings demonstrate that the recently described functional interplay between the hematopoietic system and the SNS extends to the earliest stages of their codevelopment and highlight the fact that HSC development needs to be viewed in the context of the development of other organs.
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43
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Normal hematopoiesis and hematologic malignancies: role of canonical Wnt signaling pathway and stromal microenvironment. Biochim Biophys Acta Rev Cancer 2012; 1835:1-10. [PMID: 22982245 DOI: 10.1016/j.bbcan.2012.08.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Revised: 08/22/2012] [Accepted: 08/28/2012] [Indexed: 02/06/2023]
Abstract
Wnts are a family of evolutionary-conserved secreted signaling molecules critically involved in a variety of developmental processes and in cell fate determination. A growing body of evidence suggests that Wnt signaling plays a crucial role in the influence of bone marrow stromal microenvironment on the balance between hematopoietic stem cell self-renewal and differentiation. Emerging clinical and experimental evidence also indicates Wnt signaling involvement in the disruption of the latter balance in hematologic malignancies, where the stromal microenvironment favors the homing of cancer cells to the bone marrow, as well as leukemia stem cell development and chemoresistance. In the present review, we summarize and discuss the role of the canonical Wnt signaling pathway in normal hematopoiesis and hematologic malignancies, with regard to recent findings on the stromal microenvironment involvement in these process and diseases.
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44
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Ruiz-Herguido C, Guiu J, D'Altri T, Inglés-Esteve J, Dzierzak E, Espinosa L, Bigas A. Hematopoietic stem cell development requires transient Wnt/β-catenin activity. ACTA ACUST UNITED AC 2012; 209:1457-68. [PMID: 22802352 PMCID: PMC3409499 DOI: 10.1084/jem.20120225] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Understanding how hematopoietic stem cells (HSCs) are generated and the signals that control this process is a crucial issue for regenerative medicine applications that require in vitro production of HSC. HSCs emerge during embryonic life from an endothelial-like cell population that resides in the aorta-gonad-mesonephros (AGM) region. We show here that β-catenin is nuclear and active in few endothelial nonhematopoietic cells closely associated with the emerging hematopoietic clusters of the embryonic aorta during mouse development. Importantly, Wnt/β-catenin activity is transiently required in the AGM to generate long-term HSCs and to produce hematopoietic cells in vitro from AGM endothelial precursors. Genetic deletion of β-catenin from the embryonic endothelium stage (using VE-cadherin-Cre recombinase), but not from embryonic hematopoietic cells (using Vav1-Cre), precludes progression of mutant cells toward the hematopoietic lineage; however, these mutant cells still contribute to the adult endothelium. Together, those findings indicate that Wnt/β-catenin activity is needed for the emergence but not the maintenance of HSCs in mouse embryos.
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Affiliation(s)
- Cristina Ruiz-Herguido
- Program in Cancer Research, Institut Hospital del Mar d'Investigacions Mèdiques, Parc de Recerca Biomèdica de Barcelona, 08003 Barcelona, Spain
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45
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Affiliation(s)
- Cristina Lo Celso
- Imperial College London, Division of Cell and Molecular Biology, Sir Alexander Fleming building, South Kensington Campus, London SW7 2AZ, UK.
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46
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Wnt signaling strength regulates normal hematopoiesis and its deregulation is involved in leukemia development. Leukemia 2011; 26:414-21. [PMID: 22173215 DOI: 10.1038/leu.2011.387] [Citation(s) in RCA: 153] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A strict balance between self-renewal and differentiation of hematopoietic stem cells (HSCs) is required in order to maintain homeostasis, as well as to efficiently respond to injury and infections. Numbers and fate decisions made by progenitors derived from HSC must also be carefully regulated to sustain large-scale production of blood cells. The complex Wnt family of molecules generally is thought to be important to these processes, delivering critical signals to HSC and progenitors as they reside in specialized niches. Wnt proteins have also been extensively studied in connection with malignancies and are causatively involved in the development of several types of leukemias. However, studies with experimental animal models have produced contradictory findings regarding the importance of Wnt signals for normal hematopoiesis and lymphopoiesis. Here, we will argue that dose dependency of signaling via particular Wnt pathways accounts for much, if not all of this controversy. We conclude that there seems little doubt that Wnt proteins are required to sustain normal hematopoiesis, but are likely to be presented in carefully controlled gradients in a tissue-specific manner.
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47
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Abstract
Considerable information has accumulated about components of BM that regulate the survival, self-renewal, and differentiation of hematopoietic cells. In the present study, we investigated Wnt signaling and assessed its influence on human and murine hematopoiesis. Hematopoietic stem/progenitor cells (HSPCs) were placed on Wnt3a-transduced OP9 stromal cells. The proliferation and production of B cells, natural killer cells, and plasmacytoid dendritic cells were blocked. In addition, some HSPC characteristics were maintained or re-acquired along with different lineage generation potentials. These responses did not result from direct effects of Wnt3a on HSPCs, but also required alterations in the OP9 cells. Microarray, PCR, and flow cytometric experiments revealed that OP9 cells acquired osteoblastic characteristics while down-regulating some features associated with mesenchymal stem cells, including the expression of angiopoietin 1, the c-Kit ligand, and VCAM-1. In contrast, the production of decorin, tenascins, and fibromodulin markedly increased. We found that at least 1 of these extracellular matrix components, decorin, is a regulator of hematopoiesis: upon addition of this proteoglycan to OP9 cocultures, decorin caused changes similar to those caused by Wnt3a. Furthermore, hematopoietic stem cell numbers in the BM and spleen were elevated in decorin-knockout mice. These findings define one mechanism through which canonical Wnt signaling could shape niches supportive of hematopoiesis.
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48
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Esteve P, Sandonìs A, Ibañez C, Shimono A, Guerrero I, Bovolenta P. Secreted frizzled-related proteins are required for Wnt/β-catenin signalling activation in the vertebrate optic cup. Development 2011; 138:4179-84. [PMID: 21896628 DOI: 10.1242/dev.065839] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Secreted frizzled-related proteins (Sfrps) are considered Wnt signalling antagonists but recent studies have shown that specific family members enhance Wnt diffusion and thus positively modulate Wnt signalling. Whether this is a general and physiological property of all Sfrps remains unexplored. It is equally unclear whether disruption of Sfrp expression interferes with developmental events mediated by Wnt signalling activation. Here, we have addressed these questions by investigating the functional consequences of Sfrp disruption in the canonical Wnt signalling-dependent specification of the mouse optic cup periphery. We show that compound genetic inactivation of Sfrp1 and Sfrp2 prevents Wnt/β-catenin signalling activation in this structure, which fails to be specified and acquires neural retina characteristics. Consistent with a positive role of Sfrps in signalling activation, Wnt spreading is impaired in the retina of Sfrp1(-/-);Sfrp2(-/-) mice. Conversely, forced expression of Sfrp1 in the wing imaginal disc of Drosophila, the only species in which the endogenous Wnt distribution can be detected, flattens the Wg gradient, suppresses the expression of high-Wg target genes but expands those typically activated by low Wg concentrations. Collectively, these data demonstrate that, in vivo, the levels of Wnt signalling activation strongly depend on the tissue distribution of Sfrps, which should be viewed as multifunctional regulators of Wnt signalling.
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Affiliation(s)
- Pilar Esteve
- Centro de Biología Molecular Severo Ochoa, CSIC-UAM, 28049 Madrid, Spain.
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Carothers AM, Rizvi H, Hasson RM, Heit YI, Davids JS, Bertagnolli MM, Cho NL. Mesenchymal stromal cell mutations and wound healing contribute to the etiology of desmoid tumors. Cancer Res 2011; 72:346-55. [PMID: 22094874 DOI: 10.1158/0008-5472.can-11-2819] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Desmoid tumors are nonmalignant neoplasms of mesenchymal origin that mainly contain fibroblast lineage cells. These tumors often occur in patients with familial adenomatous polyposis (FAP) coli who have germ line mutations in the APC gene. Given emerging data that has implicated multipotent mesencyhmal stromal cells (MSC) in the origin of mesenchymal tumors, we hypothesized that desmoid tumors may arise in patients with FAP after MSCs acquire somatic mutations during the proliferative phase of wound healing. To test this idea, we examined 16 desmoid tumors from FAP-associated and sporadic cases, finding that all 16 of 16 tumors expressed stem cell markers, whereas matching normal stromal tissues were uniformly negative. Desmoid tumors also contained a subclass of fibrocytes linked to wound healing, angiogenesis, and fibrosis. Using an MSC cell line derived from an FAP-associated desmoid tumor, we confirmed an expected loss in the expression of adenomatous polyposis coli (APC) and the transcriptional repressor BMI-1 while documenting the coexpression of markers for chondrocytes, adipocytes, and osteocytes. Together, our findings argue that desmoid tumors result from the growth of MSCs in a wound healing setting that is associated with deregulated Wnt signaling due to APC loss. The differentiation potential of these MSCs combined with expression of BMI-1, a transcriptional repressor downstream of Hedgehog and Notch signaling, suggests that desmoid tumors may respond to therapies targeting these pathways.
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Affiliation(s)
- Adelaide M Carothers
- Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts MA 02115, USA
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