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Sukhnanan K, Ross JR, Chao NJ, Chen BJ. Endothelial Cell Derived Extracellular Vesicles and Hematopoiesis. Radiat Res 2024; 202:215-226. [PMID: 38918003 DOI: 10.1667/rade-24-00039.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 04/23/2024] [Indexed: 06/27/2024]
Abstract
Extracellular vesicles (EVs) have been recognized as a novel way of cell-to-cell communication in the last several decades. It is believed that EVs exert their functions on nearby or distant cells through transfer of the cargo that they carry. In this review, we focus on EVs produced by endothelial cells, with emphasis on their role in hematopoiesis. We first describe how endothelial cells interact with hematopoietic stem/progenitor cells during development and in disease conditions. We then discuss EVs, ranging from their subtypes to isolation methods and analysis of EVs. With the above background information, we next review the literature related to endothelial cell derived EVs (ECEVs), including physiological functions and their clinical uses. In the last sections, we summarize the current results about the effect of ECEVs on hematopoiesis under physiological and stress conditions.
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Affiliation(s)
| | - Joel R Ross
- Department of Medicine, Duke University, Durham, North Carolina
| | - Nelson J Chao
- Department of Medicine, Duke University, Durham, North Carolina
- Department of Pathology, Duke University, Durham, North Carolina
- Department of Immunology, Duke University, Durham, North Carolina
- Duke Cancer Institute, Duke University, Durham, North Carolina
- Duke Global Health Institute, Duke University, Durham, North Carolina
| | - Benny J Chen
- Department of Medicine, Duke University, Durham, North Carolina
- Department of Immunology, Duke University, Durham, North Carolina
- Duke Fitzpatrick Institute for Photonics, Duke University, Durham, North Carolina
- Duke Regeneration Center, Duke University, Durham, North Carolina
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2
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Xu M, Thottappillil N, Cherief M, Li Z, Zhu M, Xing X, Gomez-Salazar M, Mwirigi JM, Sankaranarayanan I, Tavares-Ferreira D, Zhang C, Wang XW, Archer M, Guan Y, Tower RJ, Cahan P, Price TJ, Clemens TL, James AW. Mapping Somatosensory Afferent Circuitry to Bone Identifies Neurotrophic Signals Required for Fracture Healing. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.06.597786. [PMID: 38895367 PMCID: PMC11185682 DOI: 10.1101/2024.06.06.597786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
The profound pain accompanying bone fracture is mediated by somatosensory neurons, which also appear to be required to initiate bone regeneration following fracture. Surprisingly, the precise neuroanatomical circuitry mediating skeletal nociception and regeneration remains incompletely understood. Here, we characterized somatosensory dorsal root ganglia (DRG) afferent neurons innervating murine long bones before and after experimental long bone fracture in mice. Retrograde labeling of DRG neurons by an adeno-associated virus with peripheral nerve tropism showed AAV-tdT signal. Single cell transcriptomic profiling of 6,648 DRG neurons showed highest labeling across CGRP+ neuron clusters (6.9-17.2%) belonging to unmyelinated C fibers, thinly myelinated Aδ fibers and Aβ-Field LTMR (9.2%). Gene expression profiles of retrograde labeled DRG neurons over multiple timepoints following experimental stress fracture revealed dynamic changes in gene expression corresponding to the acute inflammatory ( S100a8 , S100a9 ) and mechanical force ( Piezo2 ). Reparative phase after fracture included morphogens such as Tgfb1, Fgf9 and Fgf18 . Two methods to surgically or genetically denervate fractured bones were used in combination with scRNA-seq to implicate defective mesenchymal cell proliferation and osteodifferentiation as underlying the poor bone repair capacity in the presence of attenuated innervation. Finally, multi-tissue scRNA-seq and interactome analyses implicated neuron-derived FGF9 as a potent regulator of fracture repair, a finding compatible with in vitro assessments of neuron-to-skeletal mesenchyme interactions.
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3
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Prasad P, Cancelas JA. From Marrow to Bone and Fat: Exploring the Multifaceted Roles of Leptin Receptor Positive Bone Marrow Mesenchymal Stromal Cells. Cells 2024; 13:910. [PMID: 38891042 PMCID: PMC11171870 DOI: 10.3390/cells13110910] [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: 05/05/2024] [Revised: 05/21/2024] [Accepted: 05/22/2024] [Indexed: 06/20/2024] Open
Abstract
The bone marrow (BM) stromal cell microenvironment contains non-hematopoietic stromal cells called mesenchymal stromal cells (MSCs). MSCs are plastic adherent, form CFU-Fs, and give rise to osteogenic, adipogenic, chondrogenic progenitors, and most importantly provide HSC niche factor chemokine C-X-C motif ligand 12 (CXCL12) and stem cell factor (SCF). Different authors have defined different markers for mouse MSC identification like PDGFR+Sca-1+ subsets, Nestin+, or LepR+ cells. Of these, the LepR+ cells are the major source of SCF and CXCL12 in the BM microenvironment and play a major role in HSC maintenance and hematopoiesis. LepR+ cells give rise to most of the bones and BM adipocytes, further regulating the microenvironment. In adult BM, LepR+ cells are quiescent but after fracture or irradiation, they proliferate and differentiate into mesenchymal lineage osteogenic, adipogenic and/or chondrogenic cells. They also play a crucial role in the steady-state hematopoiesis process, as well as hematopoietic regeneration and the homing of hematopoietic stem cells (HSCs) after myeloablative injury and/or HSC transplantation. They line the sinusoidal cavities, maintain the trabeculae formation, and provide the space for HSC homing and retention. However, the LepR+ cell subset is heterogeneous; some subsets have higher adipogenic potential, while others express osteollineage-biased genes. Different transcription factors like Early B cell factor 3 (EBF3) or RunX2 help maintain this balance between the self-renewing and committed states, whether osteogenic or adipogenic. The study of LepR+ MSCs holds immense promise for advancing our understanding of HSC biology, tissue regeneration, metabolic disorders, and immune responses. In this review, we will discuss the origin of the BM resident LepR+ cells, different subtypes, and the role of LepR+ cells in maintaining hematopoiesis, osteogenesis, and BM adipogenesis following their multifaceted impact.
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Affiliation(s)
| | - Jose A. Cancelas
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA;
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4
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Li C, Shin H, Bhavanasi D, Liu M, Yu X, Peslak SA, Liu X, Alvarez-Dominguez JR, Blobel GA, Gregory BD, Huang J, Klein PS. Expansion of human hematopoietic stem cells by inhibiting translation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.28.568925. [PMID: 38077058 PMCID: PMC10705409 DOI: 10.1101/2023.11.28.568925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Hematopoietic stem cell (HSC) transplantation using umbilical cord blood (UCB) is a potentially life-saving treatment for leukemia and bone marrow failure but is limited by the low number of HSCs in UCB. The loss of HSCs after ex vivo manipulation is also a major obstacle to gene editing for inherited blood disorders. HSCs require a low rate of translation to maintain their capacity for self-renewal, but hematopoietic cytokines used to expand HSCs stimulate protein synthesis and impair long-term self-renewal. We previously described cytokine-free conditions that maintain but do not expand human and mouse HSCs ex vivo. Here we performed a high throughput screen and identified translation inhibitors that allow ex vivo expansion of human HSCs while minimizing cytokine exposure. Transplantation assays show a ~5-fold expansion of long-term HSCs from UCB after one week of culture in low cytokine conditions. Single cell transcriptomic analysis demonstrates maintenance of HSCs expressing mediators of the unfolded protein stress response, further supporting the importance of regulated proteostasis in HSC maintenance and expansion. This expansion method maintains and expands human HSCs after CRISPR/Cas9 editing of the BCL11A+58 enhancer, overcoming a major obstacle to ex vivo gene correction for human hemoglobinopathies.
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Affiliation(s)
- Chenchen Li
- Division of Hematology-Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Hanna Shin
- Division of Hematology-Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Dheeraj Bhavanasi
- Division of Hematology-Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Mai Liu
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Xiang Yu
- Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Scott A. Peslak
- Division of Hematology-Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Division of Hematology, The Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Xiaolei Liu
- Division of Hematology-Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Juan R. Alvarez-Dominguez
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Gerd A. Blobel
- Division of Hematology, The Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Brian D. Gregory
- Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jian Huang
- Coriell Institute for Medical Research; Camden, NJ, 08103, USA
- Cooper Medical School of Rowan University, Camden, NJ, 08103, USA
| | - Peter S. Klein
- Division of Hematology-Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
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5
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Said EA, Al-Dughaishi S, Al-Hatmi W, Al-Reesi I, Al-Balushi MS, Al-Bimani A, Al-Busaidi JZ, Al-Riyami M, Al-Khabori M, Al-Kindi S, Procopio FA, Al-Sinawi S, Al-Ansari A, Koh CY, Al-Naamani K, Al-Jabri AA. Differential Production of Midkine and Pleiotrophin by Innate APCs upon Stimulation through Nucleic Acid-Sensing TLRs. J Immunol Res 2023; 2023:7944102. [PMID: 37850119 PMCID: PMC10578979 DOI: 10.1155/2023/7944102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/26/2023] [Accepted: 08/26/2023] [Indexed: 10/19/2023] Open
Abstract
Midkine (MK) and pleiotrophin (PTN) belong to the same family of cytokines. They have similar sequences and functions. Both have important roles in cellular proliferation, tumors, and diseases. They regulate and are expressed by some immune cells. We have recently demonstrated MK production by some human innate antigen-presenting cells (iAPCs), i.e., monocyte-derived dendritic cells (MDDCs) and macrophages stimulated through Toll-like receptor (TLR)-4, and plasmacytoid dendritic cells (pDCs) stimulated through TLR 7. While PTN production was only documented in tissue macrophages. TLRs 3, 7, 8, and 9 are nucleic acid sensing (NAS) TLRs that detect nucleic acids from cell damage and infection and induce iAPC responses. We investigated whether NAS TLRs can induce MK and PTN production by human iAPCs, namely monocytes, macrophages, MDDCs, myeloid dendritic cells (mDCs), and pDCs. Our results demonstrated for the first time that PTN is produced by all iAPCs upon TLR triggering (p < 0.01). IAPCs produced more PTN than MK (p < 0.01). NAS TLRs and iAPCs had differential abilities to induce the production of MK, which was induced in monocytes and pDCs by all NAS TLRs (p < 0.05) and in MDDCs by TLRs 7/8 (p < 0.05). TLR4 induced a stronger MK production than NAS TLRs (p ≤ 0.05). Monocytes produced higher levels of PTN after differentiation to macrophages and MDDCs (p < 0.05). The production of MK and PTN differs among iAPCs, with a higher production of PTN and a selective induction of MK production by NAS TLR. This highlights the potentially important role of iAPCs in angiogenesis, tumors, infections, and autoimmunity through the differential production of MK and PTN upon TLR triggering.
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Affiliation(s)
- Elias A. Said
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Sumaya Al-Dughaishi
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Wadha Al-Hatmi
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Iman Al-Reesi
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Mohammed S. Al-Balushi
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Atika Al-Bimani
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Juma Z. Al-Busaidi
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Marwa Al-Riyami
- Department of Pathology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Murtadha Al-Khabori
- Department of Hematology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Salam Al-Kindi
- Department of Hematology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Francesco A. Procopio
- Service of Immunology and Allergy, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - Shadia Al-Sinawi
- Department of Pathology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Aliyaa Al-Ansari
- Department of Biology, College of Science, Sultan Qaboos University, Muscat, Oman
| | - Crystal Y. Koh
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | | | - Ali A. Al-Jabri
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
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6
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Takeo M, Toyoshima KE, Fujimoto R, Iga T, Takase M, Ogawa M, Tsuji T. Cyclical dermal micro-niche switching governs the morphological infradian rhythm of mouse zigzag hair. Nat Commun 2023; 14:4478. [PMID: 37542032 PMCID: PMC10403492 DOI: 10.1038/s41467-023-39605-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 06/21/2023] [Indexed: 08/06/2023] Open
Abstract
Biological rhythms are involved in almost all types of biological processes, not only physiological processes but also morphogenesis. Currently, how periodic morphological patterns of tissues/organs in multicellular organisms form is not fully understood. Here, using mouse zigzag hair, which has 3 bends, we found that a change in the combination of hair progenitors and their micro-niche and subsequent bend formation occur every three days. Chimeric loss-of-function and gain-of-function of Ptn and Aff3, which are upregulated immediately before bend formation, resulted in defects in the downward movement of the micro-niche and the rhythm of bend formation in an in vivo hair reconstitution assay. Our study demonstrates the periodic change in the combination between progenitors and micro-niche, which is vital for the unique infradian rhythm.
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Affiliation(s)
- Makoto Takeo
- Laboratory for Organ Regeneration, RIKEN Center for Developmental Biology (CDB) and RIKEN Center for Biosystems Dynamics Research (BDR), Hyogo, 650-0047, Japan
| | - Koh-Ei Toyoshima
- Laboratory for Organ Regeneration, RIKEN Center for Developmental Biology (CDB) and RIKEN Center for Biosystems Dynamics Research (BDR), Hyogo, 650-0047, Japan
- OrganTech Inc., Tokyo, 104-0028, Japan
| | - Riho Fujimoto
- Department of Bioscience, Graduate School of Science and Technology, Kwansei-Gakuin University, Hyogo, 669-1337, Japan
| | - Tomoyo Iga
- Laboratory for Organ Regeneration, RIKEN Center for Developmental Biology (CDB) and RIKEN Center for Biosystems Dynamics Research (BDR), Hyogo, 650-0047, Japan
| | - Miki Takase
- Laboratory for Organ Regeneration, RIKEN Center for Developmental Biology (CDB) and RIKEN Center for Biosystems Dynamics Research (BDR), Hyogo, 650-0047, Japan
| | | | - Takashi Tsuji
- Laboratory for Organ Regeneration, RIKEN Center for Developmental Biology (CDB) and RIKEN Center for Biosystems Dynamics Research (BDR), Hyogo, 650-0047, Japan.
- OrganTech Inc., Tokyo, 104-0028, Japan.
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7
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Doan PL, Frei AC, Piryani SO, Szalewski N, Fan E, Himburg HA. Cord Blood-Derived Endothelial Progenitor Cells Promote In Vivo Regeneration of Human Hematopoietic Bone Marrow. Int J Radiat Oncol Biol Phys 2023; 116:1163-1174. [PMID: 36792018 PMCID: PMC11086728 DOI: 10.1016/j.ijrobp.2023.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/10/2023] [Accepted: 02/03/2023] [Indexed: 02/15/2023]
Abstract
PURPOSE Victims of acute radiation exposure are susceptible to hematopoietic toxicity due to bone marrow damage and loss of mature blood elements. Here, we evaluated cord blood-derived endothelial progenitor cells (CB-EPCs) as a potential cellular therapy for mitigation of hematologic acute radiation syndrome. CB-EPCs express endothelial cell markers and maintain their growth characteristics beyond 10+ passages without diminishing their doubling capacity. Further, CB-EPCs can be cryopreserved in vapor-phase liquid nitrogen and easily recovered for propagation, making them an attractive nonimmunogenic cellular therapy for off-the-shelf use. Importantly, we show CB-EPCs have the capacity to potently expand adult human bone marrow hematopoietic progenitor cells both in vitro and in vivo. METHODS AND MATERIALS To demonstrate the role of CB-EPCs in promoting in vivo human immune reconstitution after irradiation, we employed a novel humanized mouse model established by transplant of CD34+ bone marrow cells from 9 unique adult organ donors into immunocompromised NSG-SGM3 mice. The response of the humanized immune system to ionizing irradiation was then tested by exposure to 1 Gy followed by subcutaneous treatment of CB-EPCs, Food and Drug Administration-approved growth factor pegfilgrastim (0.3 mg/kg), or saline. RESULTS At day 7, total human bone marrow was decreased by 80% in irradiated controls. However, treatment with either growth factor pegfilgrastim or CB-EPCs increased recovery of total human bone marrow by 2.5-fold compared with saline. Notably, CB-EPCs also increased recovery of both human CD34+ progenitors by 5-fold and colony-forming capacity by 3-fold versus saline. Additionally, CB-EPCs promoted recovery of endogenous bone marrow endothelial cells as observed by both increased vessel area and length compared with saline. CONCLUSIONS These findings indicate the feasibility of using humanized mice engrafted with adult bone marrow for radiation research and the development of CB-EPCs as an off-the-shelf cellular therapy for mitigation of hematologic acute radiation syndrome.
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Affiliation(s)
- Phuong L Doan
- Department of Medicine, Division of Hematologic Malignancies and Cellular Therapy; Duke Cancer Institute, Duke University, Durham, North Carolina
| | | | - Sadhna O Piryani
- Department of Medicine, Division of Hematologic Malignancies and Cellular Therapy
| | | | - Elizabeth Fan
- Department of Medicine, Division of Hematologic Malignancies and Cellular Therapy
| | - Heather A Himburg
- Department of Radiation Oncology; Cancer Center, Medical College of Wisconsin, Milwaukee, Wisconsin.
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8
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Rajachandran S, Zhang X, Cao Q, Caldeira-Brant AL, Zhang X, Song Y, Evans M, Bukulmez O, Grow EJ, Nagano M, Orwig KE, Chen H. Dissecting the spermatogonial stem cell niche using spatial transcriptomics. Cell Rep 2023; 42:112737. [PMID: 37393620 PMCID: PMC10530051 DOI: 10.1016/j.celrep.2023.112737] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 05/07/2023] [Accepted: 06/19/2023] [Indexed: 07/04/2023] Open
Abstract
Spermatogonial stem cells (SSCs) in the testis support the lifelong production of sperm. SSCs reside within specialized microenvironments called "niches," which are essential for SSC self-renewal and differentiation. However, our understanding of the molecular and cellular interactions between SSCs and niches remains incomplete. Here, we combine spatial transcriptomics, computational analyses, and functional assays to systematically dissect the molecular, cellular, and spatial composition of SSC niches. This allows us to spatially map the ligand-receptor (LR) interaction landscape in both mouse and human testes. Our data demonstrate that pleiotrophin regulates mouse SSC functions through syndecan receptors. We also identify ephrin-A1 as a potential niche factor that influences human SSC functions. Furthermore, we show that the spatial re-distribution of inflammation-related LR interactions underlies diabetes-induced testicular injury. Together, our study demonstrates a systems approach to dissect the complex organization of the stem cell microenvironment in health and disease.
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Affiliation(s)
- Shreya Rajachandran
- Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX, USA; Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Xin Zhang
- Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX, USA; Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Qiqi Cao
- Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX, USA; Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Andre L Caldeira-Brant
- Department of Obstetrics, Gynecology and Reproductive Sciences, Magee-Womens Research Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Xiangfan Zhang
- Department of Obstetrics and Gynecology, McGill University, Montreal, QC, Canada; Child Health and Human Development Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Youngmin Song
- Department of Obstetrics and Gynecology, McGill University, Montreal, QC, Canada; Child Health and Human Development Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Melanie Evans
- Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Orhan Bukulmez
- Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Edward J Grow
- Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX, USA; Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Makoto Nagano
- Department of Obstetrics and Gynecology, McGill University, Montreal, QC, Canada; Child Health and Human Development Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Kyle E Orwig
- Department of Obstetrics, Gynecology and Reproductive Sciences, Magee-Womens Research Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Haiqi Chen
- Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX, USA; Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
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9
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Ganguly D, Schmidt MO, Coleman M, Ngo TVC, Sorrelle N, Dominguez AT, Murimwa GZ, Toombs JE, Lewis C, Fang YV, Valdes-Mora F, Gallego-Ortega D, Wellstein A, Brekken RA. Pleiotrophin drives a prometastatic immune niche in breast cancer. J Exp Med 2023; 220:e20220610. [PMID: 36828390 PMCID: PMC9998964 DOI: 10.1084/jem.20220610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 11/21/2022] [Accepted: 01/09/2023] [Indexed: 11/04/2022] Open
Abstract
Metastatic cancer cells adapt to thrive in secondary organs. To investigate metastatic adaptation, we performed transcriptomic analysis of metastatic and non-metastatic murine breast cancer cells. We found that pleiotrophin (PTN), a neurotrophic cytokine, is a metastasis-associated factor that is expressed highly by aggressive breast cancers. Moreover, elevated PTN in plasma correlated significantly with metastasis and reduced survival of breast cancer patients. Mechanistically, we find that PTN activates NF-κB in cancer cells leading to altered cytokine production, subsequent neutrophil recruitment, and an immune suppressive microenvironment. Consequently, inhibition of PTN, pharmacologically or genetically, reduces the accumulation of tumor-associated neutrophils and reverts local immune suppression, resulting in increased T cell activation and attenuated metastasis. Furthermore, inhibition of PTN significantly enhanced the efficacy of immune checkpoint blockade and chemotherapy in reducing metastatic burden in mice. These findings establish PTN as a previously unrecognized driver of a prometastatic immune niche and thus represents a promising therapeutic target for the treatment of metastatic breast cancer.
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Affiliation(s)
- Debolina Ganguly
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Cancer Biology Graduate Program, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Marcel O. Schmidt
- Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
| | - Morgan Coleman
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Tuong-Vi Cindy Ngo
- Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Noah Sorrelle
- Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Adrian T.A. Dominguez
- Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Gilbert Z. Murimwa
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Jason E. Toombs
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Cheryl Lewis
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Yisheng V. Fang
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Fatima Valdes-Mora
- Cancer Epigenetic Biology and Therapeutics group, Precision Medicine Theme, Children’s Cancer Institute, Sydney, Australia
- School of Clinical Medicine, University of NSW Sydney, Sydney, Australia
| | - David Gallego-Ortega
- School of Biomedical Engineering, Faculty of Engineering and Information Technology, University of Technology Sydney, Sydney, Australia
- Garvan Institute of Medical Research and The Kinghorn Cancer Centre, Sydney, Australia
- School of Clinical Medicine, St Vincent’s Healthcare Clinical Campus, Faculty of Medicine and Health, UNSW Sydney, Sydney, Australia
| | - Anton Wellstein
- Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
| | - Rolf A. Brekken
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Cancer Biology Graduate Program, University of Texas Southwestern Medical Center, Dallas, TX, USA
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10
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Leiby KL, Yuan Y, Ng R, Raredon MSB, Adams TS, Baevova P, Greaney AM, Hirschi KK, Campbell SG, Kaminski N, Herzog EL, Niklason LE. Rational engineering of lung alveolar epithelium. NPJ Regen Med 2023; 8:22. [PMID: 37117221 PMCID: PMC10147714 DOI: 10.1038/s41536-023-00295-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 04/06/2023] [Indexed: 04/30/2023] Open
Abstract
Engineered whole lungs may one day expand therapeutic options for patients with end-stage lung disease. However, the feasibility of ex vivo lung regeneration remains limited by the inability to recapitulate mature, functional alveolar epithelium. Here, we modulate multimodal components of the alveolar epithelial type 2 cell (AEC2) niche in decellularized lung scaffolds in order to guide AEC2 behavior for epithelial regeneration. First, endothelial cells coordinate with fibroblasts, in the presence of soluble growth and maturation factors, to promote alveolar scaffold population with surfactant-secreting AEC2s. Subsequent withdrawal of Wnt and FGF agonism synergizes with tidal-magnitude mechanical strain to induce the differentiation of AEC2s to squamous type 1 AECs (AEC1s) in cultured alveoli, in situ. These results outline a rational strategy to engineer an epithelium of AEC2s and AEC1s contained within epithelial-mesenchymal-endothelial alveolar-like units, and highlight the critical interplay amongst cellular, biochemical, and mechanical niche cues within the reconstituting alveolus.
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Affiliation(s)
- Katherine L Leiby
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
- Yale School of Medicine, New Haven, CT, USA
| | - Yifan Yuan
- Department of Anesthesiology, Yale School of Medicine, New Haven, CT, USA
| | - Ronald Ng
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - Micha Sam Brickman Raredon
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
- Yale School of Medicine, New Haven, CT, USA
| | - Taylor S Adams
- Department of Internal Medicine, Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Pavlina Baevova
- Department of Anesthesiology, Yale School of Medicine, New Haven, CT, USA
| | - Allison M Greaney
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - Karen K Hirschi
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
- Yale Cardiovascular Research Center, Yale School of Medicine, New Haven, CT, USA
- Department of Cell Biology, University of Virginia, Charlottesville, VA, USA
- Cardiovascular Research Center, University of Virginia, Charlottesville, VA, USA
| | - Stuart G Campbell
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
- Department of Cellular and Molecular Physiology, Yale School of Medicine, New Haven, CT, USA
| | - Naftali Kaminski
- Department of Internal Medicine, Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Erica L Herzog
- Department of Internal Medicine, Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Laura E Niklason
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA.
- Department of Anesthesiology, Yale School of Medicine, New Haven, CT, USA.
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11
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Wang Y, Sugimura R. Ex vivo expansion of hematopoietic stem cells. Exp Cell Res 2023; 427:113599. [PMID: 37061173 DOI: 10.1016/j.yexcr.2023.113599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/27/2023] [Accepted: 04/09/2023] [Indexed: 04/17/2023]
Abstract
Hematopoietic stem cells (HSCs) are multipotent progenitor cells that can differentiate into various mature blood cells and immune cells, thus reconstituting hematopoiesis. By taking advantage of the tremendous potential of HSCs, varied hereditary and hematologic diseases are promised to be alleviated or cured. To solve the contradiction between the growing demand for HSCs in disease treatment and the low population of HSCs in both cord blood and bone marrow, ex vivo HSC expansion along with multiple protocols has been investigated for harvesting adequate HSCs over the past two decades. This review surveys the state-of-the-art techniques for ex vivo HSC self-renewal and provides a concise summary of the effects of diverse intrinsic and extrinsic factors on the expansion of HSCs. The remaining challenges and emerging opportunities in the field of HSC expansion are also presented.
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Affiliation(s)
- Yuan Wang
- Centre for Translational Stem Cell Biology, Hong Kong
| | - Ryohichi Sugimura
- Centre for Translational Stem Cell Biology, Hong Kong; Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong.
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12
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In Vitro Human Haematopoietic Stem Cell Expansion and Differentiation. Cells 2023; 12:cells12060896. [PMID: 36980237 PMCID: PMC10046976 DOI: 10.3390/cells12060896] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 03/17/2023] Open
Abstract
The haematopoietic system plays an essential role in our health and survival. It is comprised of a range of mature blood and immune cell types, including oxygen-carrying erythrocytes, platelet-producing megakaryocytes and infection-fighting myeloid and lymphoid cells. Self-renewing multipotent haematopoietic stem cells (HSCs) and a range of intermediate haematopoietic progenitor cell types differentiate into these mature cell types to continuously support haematopoietic system homeostasis throughout life. This process of haematopoiesis is tightly regulated in vivo and primarily takes place in the bone marrow. Over the years, a range of in vitro culture systems have been developed, either to expand haematopoietic stem and progenitor cells or to differentiate them into the various haematopoietic lineages, based on the use of recombinant cytokines, co-culture systems and/or small molecules. These approaches provide important tractable models to study human haematopoiesis in vitro. Additionally, haematopoietic cell culture systems are being developed and clinical tested as a source of cell products for transplantation and transfusion medicine. This review discusses the in vitro culture protocols for human HSC expansion and differentiation, and summarises the key factors involved in these biological processes.
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13
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Nobakht S, Milne TJ, Duncan WJ, Ram A, Tkatchenko T, Dong Z, Coates DE. Expression of the pleiotrophin-midkine axis in a sheep tooth socket model of bone healing. J Periodontal Res 2023; 58:109-121. [PMID: 36411509 PMCID: PMC10099163 DOI: 10.1111/jre.13073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 10/24/2022] [Accepted: 11/05/2022] [Indexed: 11/23/2022]
Abstract
OBJECTIVE AND BACKGROUND Resorption of alveolar bone after tooth extraction is a common problem often requiring bone grafting. The success of the grafting procedures is dependent on multiple factors including the presence of growth factors. This is the first in vivo study to investigate the role of the pleiotrophin family of cytokines in alveolar bone regeneration. This research investigated the role of the pleiotrophin-midkine (PTN-MDK) axis during osteogenesis, with and without a grafting material, after tooth extraction in a sheep model. METHODS Thirty Romney-cross ewes were anesthetized, and all premolar teeth on the right side were extracted. The sockets were randomized to controls sites with no treatment and test sites with Bio-Oss® graft material and Bio-Gide® membrane. Samples were harvested after sacrificing animals 4, 8, and 16 weeks post-grafting (n = 10 per time-point). Tissue for qRT2 -PCR gene analysis was recovered from the socket next to the first molar using a trephine (Ø = 2 mm). Each socket was fixed, decalcified, paraffin-embedded, and sectioned. Immunohistochemistry was conducted to localize both PTN and MDK along with their receptors, protein tyrosine phosphatase receptor type Z1 (PTPRZ1), ALK receptor tyrosine kinase (ALK), and notch receptor 2 (NOTCH2). RESULTS Within the healing sockets, high expression of genes for PTN, MDK, NOTCH2, and ALK was found at all time-points and in both grafted and non-grafted sites, while PTPRZ1 was only expressed at low levels. The relative gene expression of the PTN family of cytokines was not statistically different at the three time-points between test and control groups (p > .05). Immunohistochemistry found PTN and MDK in association with new bone, NOTCH2 in the connective tissue, and PTPRZ1 and ALK in association with cuboidal osteoblasts involved in bone formation. CONCLUSIONS The PTN-MDK axis was highly expressed in both non-grafted and grafted sockets during osteogenesis in a sheep model of alveolar bone regeneration with no evidence that grafting significantly affected expression. The activation of NOTCH2 and PTPRZ1 receptors may be important during bone regeneration in vivo. The discovery of the PTN-MDK axis as important during alveolar bone regeneration is novel and opens up new avenues of research into these stably expressed highly active cytokines. Growth factor supplementation with PTN and/or MDK during healing may be an approach for enhanced regeneration or to initiate healing where delayed.
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Affiliation(s)
- Saeideh Nobakht
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Trudy J Milne
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Warwick J Duncan
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Anumala Ram
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Tatiana Tkatchenko
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Zhen Dong
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Dawn E Coates
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
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Albayrak E, Kocabaş F. Therapeutic targeting and HSC proliferation by small molecules and biologicals. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2023; 135:425-496. [PMID: 37061339 DOI: 10.1016/bs.apcsb.2022.11.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Hematopoietic stem cells (HSCs) have considerably therapeutic value on autologous and allogeneic transplantation for many malignant/non-malignant hematological diseases, especially with improvement of gene therapy. However, acquirement of limited cell dose from HSC sources is the main handicap for successful transplantation. Therefore, many strategies based on the utilization of various cytokines, interaction of stromal cells, modulation of several extrinsic and intrinsic factors have been developed to promote ex vivo functional HSC expansion with high reconstitution ability until today. Besides all these strategies, small molecules become prominent with their ease of use and various advantages when they are translated to the clinic. In the last two decades, several small molecule compounds have been investigated in pre-clinical studies and, some of them were evaluated in different stages of clinical trials for their safety and efficiencies. In this chapter, we will present an overview of HSC biology, function, regulation and also, pharmacological HSC modulation with small molecules from pre-clinical and clinical perspectives.
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15
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Sharma GP, Himburg HA. Organ-Specific Endothelial Dysfunction Following Total Body Irradiation Exposure. TOXICS 2022; 10:toxics10120747. [PMID: 36548580 PMCID: PMC9781710 DOI: 10.3390/toxics10120747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 11/28/2022] [Accepted: 11/30/2022] [Indexed: 05/14/2023]
Abstract
As the single cell lining of the heart and all blood vessels, the vascular endothelium serves a critical role in maintaining homeostasis via control of vascular tone, immune cell recruitment, and macromolecular transit. For victims of acute high-dose radiation exposure, damage to the vascular endothelium may exacerbate the pathogenesis of acute and delayed multi-organ radiation toxicities. While commonalities exist between radiation-induced endothelial dysfunction in radiosensitive organs, the vascular endothelium is known to be highly heterogeneous as it is required to serve tissue and organ specific roles. In keeping with its organ and tissue specific functionality, the molecular and cellular response of the endothelium to radiation injury varies by organ. Therefore, in the development of medical countermeasures for multi-organ injury, it is necessary to consider organ and tissue-specific endothelial responses to both injury and candidate mitigators. The purpose of this review is to summarize the pathogenesis of endothelial dysfunction following total or near total body irradiation exposure at the level of individual radiosensitive organs.
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Affiliation(s)
- Guru Prasad Sharma
- Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Heather A. Himburg
- Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Cancer Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Correspondence: ; Tel.: +1-(414)-955-4676
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16
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Zheng Z, He H, Tang XT, Zhang H, Gou F, Yang H, Cao J, Shi S, Yang Z, Sun G, Xie X, Zeng Y, Wen A, Lan Y, Zhou J, Liu B, Zhou BO, Cheng T, Cheng H. Uncovering the emergence of HSCs in the human fetal bone marrow by single-cell RNA-seq analysis. Cell Stem Cell 2022; 29:1562-1579.e7. [DOI: 10.1016/j.stem.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 02/24/2022] [Accepted: 10/12/2022] [Indexed: 11/06/2022]
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17
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Zhang T, Zhou M, Xiao D, Liu Z, Jiang Y, Feng M, Lin Y, Cai X. Myelosuppression Alleviation and Hematopoietic Regeneration by Tetrahedral-Framework Nucleic-Acid Nanostructures Functionalized with Osteogenic Growth Peptide. ADVANCED SCIENCE 2022; 9:e2202058. [PMID: 35882625 PMCID: PMC9507378 DOI: 10.1002/advs.202202058] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 07/12/2022] [Indexed: 02/06/2023]
Abstract
As major complications of chemoradiotherapy, myelosuppression and hematopoietic-system damage severely affect immunologic function and can delay or even terminate treatment for cancer patients. Although several specific cytokines have been used for hematopoiesis recovery, their effect is limited, and they may increase the risk of tumor recurrence. In this study, osteogenic growth peptide functionalized tetrahedral framework nucleic-acid nanostructures (OGP-tFNAs) are prepared; they combine the positive hematopoiesis stimulating effect of OGP and the drug carrying function of tFNAs. The potential of OGP-tFNAs for hematopoietic stimulation and microenvironment regulation is investigated. It is shown that OGP-tFNAs can protect bone marrow stromal cells from 5-fluorouracil (5-FU)-induced DNA damage and apoptosis. OGP-tFNAs pretreatment activates the extracellularly regulated protein kinase signal and downregulates apoptosis-related proteins. OGP-tFNAs also alleviate the chemotherapy-induced inhibition of hematopoiesis-related cytokine expression, which is crucial for hematopoiesis reconstitution. In conclusion, OGP-tFNAs can protect hematopoietic cells and their microenvironment from chemotherapy-induced injuries and myelosuppression, while promoting hematopoiesis regeneration.
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Affiliation(s)
- Tianxu Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, P. R. China
| | - Mi Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, P. R. China
| | - Dexuan Xiao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, P. R. China
| | - Zhiqiang Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, P. R. China
| | - Yueying Jiang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, P. R. China
| | - Maogeng Feng
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, 646000, P. R. China
| | - Yunfeng Lin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, P. R. China
| | - Xiaoxiao Cai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, P. R. China
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18
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Torres LS, Asada N, Weiss MJ, Trumpp A, Suda T, Scadden DT, Ito K. Recent advances in "sickle and niche" research - Tribute to Dr. Paul S Frenette. Stem Cell Reports 2022; 17:1509-1535. [PMID: 35830837 PMCID: PMC9287685 DOI: 10.1016/j.stemcr.2022.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 06/08/2022] [Accepted: 06/09/2022] [Indexed: 10/27/2022] Open
Abstract
In this retrospective, we review the two research topics that formed the basis of the outstanding career of Dr. Paul S. Frenette. In the first part, we focus on sickle cell disease (SCD). The defining feature of SCD is polymerization of the deoxygenated mutant hemoglobin, which leads to a vicious cycle of hemolysis and vaso-occlusion. We survey important discoveries in SCD pathophysiology that have led to recent advances in treatment of SCD. The second part focuses on the hematopoietic stem cell (HSC) niche, the complex microenvironment within the bone marrow that controls HSC function and homeostasis. We detail the cells that constitute this niche, and the factors that these cells use to exert control over hematopoiesis. Here, we trace the scientific paths of Dr. Frenette, highlight key aspects of his research, and identify his most important scientific contributions in both fields.
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Affiliation(s)
- Lidiane S Torres
- Ruth L. and David S. Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA; Department of Cell Biology, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA; Department of Medicine, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA
| | - Noboru Asada
- Department of Hematology and Oncology, Okayama University Hospital, Okayama 700-8558, Japan
| | - Mitchell J Weiss
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Andreas Trumpp
- Division of Stem Cells and Cancer, German Cancer Research Center (DKFZ) and DKFZ-ZMBH Alliance, 69120 Heidelberg, Germany; Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI-STEM gGmbH), 69120 Heidelberg, Germany; Faculty of Biosciences, Heidelberg University, 69117 Heidelberg, Germany; German Cancer Consortium (DKTK), 69120 Heidelberg, Germany
| | - Toshio Suda
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore; International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - David T Scadden
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA; Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Keisuke Ito
- Ruth L. and David S. Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA; Department of Cell Biology, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA; Department of Medicine, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA; Montefiore Einstein Cancer Center, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA; Einstein Diabetes Research Center, Albert Einstein College of Medicine, Bronx, NY, USA.
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19
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Huang X, Guo B. Update on preclinical and clinical efforts on ex-vivo expansion of hematopoietic stem and progenitor cells. Curr Opin Hematol 2022; 29:167-173. [PMID: 35220322 DOI: 10.1097/moh.0000000000000714] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW Ex-vivo expansion of hematopoietic stem cells (HSCs) is one potential approach to enhance the clinical efficacy of hematopoietic cell transplantation-based therapy for malignant and nonmalignant blood diseases. Here, we discuss the major progress of preclinical and clinical studies on the ex-vivo expansion of human HSCs and progenitor cells (HPCs). RECENT FINDINGS Single-cell RNA sequencing identified ADGRG1 as a reliable marker of functional HSCs upon ex-vivo expansion-induced mitochondrial oxidative stress. Both SR1 and UM171 significantly promote ex-vivo expansion of human cord blood HSCs and HPCs, as determined in preclinical animal models. Encouraged by these findings from the bench, multiple phase I/II and phase II clinical trials have been conducted to evaluate the safety, feasibility and efficacy of SR1-expanded and UM171-expanded cord blood units in patients with hematological malignancy. SUMMARY Preliminary data from multiple phase I/II clinical trials regarding transplants of ex-vivo-expanded HSCs and HPCs have demonstrated that ex-vivo expansion may be used to overcome the limitation of the rarity of HSCs without compromising stemness.
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Affiliation(s)
- Xinxin Huang
- Zhongshan-Xuhui Hospital of Fudan University and Shanghai Key Laboratory of Medical Epigenetics, Institutes of Biomedical Sciences, Fudan University
| | - Bin Guo
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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20
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Lin Q, Wu L, Chatla S, Chowdhury FA, Atale N, Joseph J, Du W. Hematopoietic stem cell regeneration through paracrine regulation of the Wnt5a/Prox1 signaling axis. J Clin Invest 2022; 132:155914. [PMID: 35703178 PMCID: PMC9197516 DOI: 10.1172/jci155914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 05/05/2022] [Indexed: 11/20/2022] Open
Abstract
The crosstalk between the BM microenvironment (niche) and hematopoietic stem cells (HSCs) is critical for HSC regeneration. Here, we show that in mice, deletion of the Fanconi anemia (FA) genes Fanca and Fancc dampened HSC regeneration through direct effects on HSCs and indirect effects on BM niche cells. FA HSCs showed persistent upregulation of the Wnt target Prox1 in response to total body irradiation (TBI). Accordingly, lineage-specific deletion of Prox1 improved long-term repopulation of the irradiated FA HSCs. Forced expression of Prox1 in WT HSCs mimicked the defective repopulation phenotype of FA HSCs. WT mice but not FA mice showed significant induction by TBI of BM stromal Wnt5a protein. Mechanistically, FA proteins regulated stromal Wnt5a expression, possibly through modulating the Wnt5a transcription activator Pax2. Wnt5a treatment of irradiated FA mice enhanced HSC regeneration. Conversely, Wnt5a neutralization inhibited HSC regeneration after TBI. Wnt5a secreted by LepR+CXCL12+ BM stromal cells inhibited β-catenin accumulation, thereby repressing Prox1 transcription in irradiated HSCs. The detrimental effect of deregulated Wnt5a/Prox1 signaling on HSC regeneration was also observed in patients with FA and aged mice. Irradiation induced upregulation of Prox1 in the HSCs of aged mice, and deletion of Prox1 in aged HSCs improved HSC regeneration. Treatment of aged mice with Wnt5a enhanced hematopoietic repopulation. Collectively, these findings identified the paracrine Wnt5a/Prox1 signaling axis as a regulator of HSC regeneration under conditions of injury and aging.
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Affiliation(s)
- Qiqi Lin
- Division of Hematology and Oncology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Limei Wu
- Division of Hematology and Oncology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.,University of Pittsburgh Medical Center (UPMC) Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
| | - Srinivas Chatla
- Fels Cancer Institute for Personalized Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania, USA
| | - Fabliha A Chowdhury
- Division of Hematology and Oncology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Neha Atale
- Division of Hematology and Oncology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.,University of Pittsburgh Medical Center (UPMC) Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
| | - Jonathan Joseph
- University of Pittsburgh Medical Center (UPMC) Hillman Cancer Center, Pittsburgh, Pennsylvania, USA.,University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Wei Du
- Division of Hematology and Oncology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.,University of Pittsburgh Medical Center (UPMC) Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
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21
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Xuan J, Liu Y, Liu J, Zeng X, Wang H. New Insights into Hematopoietic Stem Cell Expansion to Stimulate Repopulation of the Adult Blood System for Transplantation. Life (Basel) 2022; 12:life12050716. [PMID: 35629383 PMCID: PMC9146250 DOI: 10.3390/life12050716] [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: 04/07/2022] [Revised: 05/06/2022] [Accepted: 05/10/2022] [Indexed: 11/16/2022] Open
Abstract
Successful engraftment of hematopoietic stem cells (HSCs) and progenitor cells (HSPCs) may be considered as a basis for the repopulation of the blood cells after transplantation in adults. Therefore, in vivo and ex vivo expansion of HSCs holds great promise for clinical applications. In this review, the mechanisms of HSC expansion will be discussed, considering the previous studies and works of literature. This is aimed to identify the signaling pathways that regulate HSC expansion and improve the application of engraftment in disease management. The following aspects will be included: (i) Stimulation of HSCs growth in vivo through gene regulation and cytokines activation; (ii) direct or indirect induction of HSC expansion by regulating signaling pathways; (iii) addition to assisting cells to help in the proliferation of HSCs; (iv) changing of living environment in the HSCs cultures via adjusting components and forms of cultures; (v) enhancement of HSC expansion by incorporating substances, such as extracellular vesicles (EVs), UM171, among others. In this review, recent new findings that provide us with new insights into HSC expansion methods have been summarized. Furthermore, these findings will also provide more possibilities for the development of some novel strategies for expanding and engrafting HSCs applied for treatments of some hematopoietic disorders.
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Affiliation(s)
- Jiangying Xuan
- School of Basic Medical Sciences, Nanchang University, Nanchang 330006, China; (J.X.); (Y.L.); (J.L.); (X.Z.)
- Queen Mary School, Nanchang University, Nanchang 330006, China
| | - Yingxia Liu
- School of Basic Medical Sciences, Nanchang University, Nanchang 330006, China; (J.X.); (Y.L.); (J.L.); (X.Z.)
| | - Jinhui Liu
- School of Basic Medical Sciences, Nanchang University, Nanchang 330006, China; (J.X.); (Y.L.); (J.L.); (X.Z.)
| | - Xiaoping Zeng
- School of Basic Medical Sciences, Nanchang University, Nanchang 330006, China; (J.X.); (Y.L.); (J.L.); (X.Z.)
| | - Hongmei Wang
- School of Basic Medical Sciences, Nanchang University, Nanchang 330006, China; (J.X.); (Y.L.); (J.L.); (X.Z.)
- Correspondence: ; Tel.: +86-137-6700-4966
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22
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Current insights into the bone marrow niche: From biology in vivo to bioengineering ex vivo. Biomaterials 2022; 286:121568. [DOI: 10.1016/j.biomaterials.2022.121568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 04/26/2022] [Accepted: 05/03/2022] [Indexed: 11/21/2022]
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23
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Hadland B, Varnum-Finney B, Dozono S, Dignum T, Nourigat-McKay C, Heck AM, Ishida T, Jackson DL, Itkin T, Butler JM, Rafii S, Trapnell C, Bernstein ID. Engineering a niche supporting hematopoietic stem cell development using integrated single-cell transcriptomics. Nat Commun 2022; 13:1584. [PMID: 35332125 PMCID: PMC8948249 DOI: 10.1038/s41467-022-28781-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 02/09/2022] [Indexed: 12/22/2022] Open
Abstract
Hematopoietic stem cells (HSCs) develop from hemogenic endothelium within embryonic arterial vessels such as the aorta of the aorta-gonad-mesonephros region (AGM). To identify the signals responsible for HSC formation, here we use single cell RNA-sequencing to simultaneously analyze the transcriptional profiles of AGM-derived cells transitioning from hemogenic endothelium to HSCs, and AGM-derived endothelial cells which provide signals sufficient to support HSC maturation and self-renewal. Pseudotemporal ordering reveals dynamics of gene expression during the hemogenic endothelium to HSC transition, identifying surface receptors specifically expressed on developing HSCs. Transcriptional profiling of niche endothelial cells identifies corresponding ligands, including those signaling to Notch receptors, VLA-4 integrin, and CXCR4, which, when integrated in an engineered platform, are sufficient to support the generation of engrafting HSCs. These studies provide a transcriptional map of the signaling interactions necessary for the development of HSCs and advance the goal of engineering HSCs for therapeutic applications.
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Affiliation(s)
- Brandon Hadland
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA.
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, 98105, USA.
| | - Barbara Varnum-Finney
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Stacey Dozono
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Tessa Dignum
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Cynthia Nourigat-McKay
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Adam M Heck
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Takashi Ishida
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Dana L Jackson
- Department of Genome Sciences, University of Washington School of Medicine, Seattle, WA, 98105, USA
| | - Tomer Itkin
- Department of Genetic Medicine, Ansary Stem Cell Institute, Howard Hughes Medical Institute, Weill Cornell Medical College, New York, NY, 10021, USA
| | - Jason M Butler
- Center for Discovery and Innovation, Hackensack University Medical Center, Nutley, NJ, 07110, USA
| | - Shahin Rafii
- Department of Genetic Medicine, Ansary Stem Cell Institute, Howard Hughes Medical Institute, Weill Cornell Medical College, New York, NY, 10021, USA
| | - Cole Trapnell
- Department of Genome Sciences, University of Washington School of Medicine, Seattle, WA, 98105, USA
| | - Irwin D Bernstein
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, 98105, USA
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Effect of expansion of human umbilical cord blood CD34 + cells on neurotrophic and angiogenic factor expression and function. Cell Tissue Res 2022; 388:117-132. [PMID: 35106623 PMCID: PMC8976778 DOI: 10.1007/s00441-022-03592-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 01/19/2022] [Indexed: 12/29/2022]
Abstract
The use of CD34 + cell-based therapies has largely been focused on haematological conditions. However, there is increasing evidence that umbilical cord blood (UCB) CD34 + -derived cells have neuroregenerative properties. Due to low cell numbers of CD34 + cells present in UCB, expansion is required to produce sufficient cells for therapeutic purposes, especially in adults or when frequent applications are required. However, it is not known whether expansion of CD34 + cells has an impact on their function and neuroregenerative capacity. We addressed this knowledge gap in this study, via expansion of UCB-derived CD34 + cells using combinations of LDL, UM171 and SR-1 to yield large numbers of cells and then tested their functionality. CD34 + cells expanded for 14 days in media containing UM171 and SR-1 resulted in over 1000-fold expansion. The expanded cells showed an up-regulation of the neurotrophic factor genes BDNF, GDNF, NTF-3 and NTF-4, as well as the angiogenic factors VEGF and ANG. In vitro functionality testing showed that these expanded cells promoted angiogenesis and, in brain glial cells, promoted cell proliferation and reduced production of reactive oxygen species (ROS) during oxidative stress. Collectively, this study showed that our 14-day expansion protocol provided a robust expansion that could produce enough cells for therapeutic purposes. These expanded cells, when tested in in vitro, maintained functionality as demonstrated through promotion of cell proliferation, attenuation of ROS production caused by oxidative stress and promotion of angiogenesis.
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25
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[Research progress on in vitro expansion and clinical application of hematopoietic stem cell]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2022; 43:167-172. [PMID: 35381684 PMCID: PMC8980649 DOI: 10.3760/cma.j.issn.0253-2727.2022.02.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Moore CA, Ferrer AI, Alonso S, Pamarthi SH, Sandiford OA, Rameshwar P. Exosomes in the Healthy and Malignant Bone Marrow Microenvironment. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1350:67-89. [PMID: 34888844 DOI: 10.1007/978-3-030-83282-7_3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The bone marrow (BM) is a complex organ that sustains hematopoiesis via mechanisms involving the microenvironment. The microenvironment includes several cell types, neurotransmitters from innervated fibers, growth factors, extracellular matrix proteins, and extracellular vesicles. The main function of the BM is to regulate hematopoietic function to sustain the production of blood and immune cells. However, the BM microenvironment can also accommodate the survival of malignant cells. A major mechanism by which the cancer cells communicate with cells of the BM microenvironment is through the exchange of exosomes, a subset of extracellular vesicles that deliver molecular signals bidirectionally between malignant and healthy cells. The field of exosomes is an active area of investigation since an understanding of how the exosomal packaging, cargo, and production can be leveraged therapeutically to deter cancer progression and sensitize malignant cells to other therapies. Altogether, this chapter discusses the crucial role of exosomes in the development and progression of BM-associated cancers, such as hematologic malignancies and marrow-metastatic breast cancer. Exosome-based therapeutic strategies and their limitations are also considered.
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Affiliation(s)
- Caitlyn A Moore
- Rutgers New Jersey Medical School, Rutgers University, Newark, NJ, United States
- Rutgers School of Graduate Studies at New Jersey Medical School, Rutgers University, Newark, NJ, United States
| | - Alejandra I Ferrer
- Rutgers New Jersey Medical School, Rutgers University, Newark, NJ, United States
- Rutgers School of Graduate Studies at New Jersey Medical School, Rutgers University, Newark, NJ, United States
| | - Sara Alonso
- Rutgers School of Graduate Studies at New Jersey Medical School, Rutgers University, Newark, NJ, United States
| | - Sri Harika Pamarthi
- Rutgers New Jersey Medical School, Rutgers University, Newark, NJ, United States
| | - Oleta A Sandiford
- Rutgers New Jersey Medical School, Rutgers University, Newark, NJ, United States
- Rutgers School of Graduate Studies at New Jersey Medical School, Rutgers University, Newark, NJ, United States
| | - Pranela Rameshwar
- Rutgers New Jersey Medical School, Rutgers University, Newark, NJ, United States.
- Rutgers School of Graduate Studies at New Jersey Medical School, Rutgers University, Newark, NJ, United States.
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27
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Vascular Regulation of Hematopoietic Stem Cell Homeostasis, Regeneration, and Aging. CURRENT STEM CELL REPORTS 2021; 7:194-203. [PMID: 34868826 PMCID: PMC8639543 DOI: 10.1007/s40778-021-00198-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/14/2021] [Indexed: 12/26/2022]
Abstract
Purpose of Review Hematopoietic stem cells (HSCs) sit at the top of the hierarchy that meets the daily burden of blood production. HSC maintenance relies on extrinsic cues from the bone marrow (BM) microenvironment to balance stem cell self-renewal and cell fate decisions. In this brief review, we will highlight the studies and model systems that define the centralized role of BM vascular endothelium in modulating HSC activity in health and stress. Recent Findings The BM microenvironment is composed of a diverse array of intimately associated vascular and perivascular cell types. Recent dynamic imaging studies, coupled with single-cell RNA sequencing (scRNA-seq) and functional readouts, have advanced our understanding of the HSC-supportive cell types and their cooperative mechanisms that govern stem cell fate during homeostasis, regeneration, and aging. These findings have established complex and discrete vascular microenvironments within the BM that express overlapping and unique paracrine signals that modulate HSC fate. Summary Understanding the spatial and reciprocal HSC-niche interactions and the molecular mechanisms that govern HSC activity in the BM vascular microenvironment will be integral in developing therapies aimed at ameliorating hematological disease and supporting healthy hematopoietic output.
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28
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Li J, Wang X, Ding J, Zhu Y, Min W, Kuang W, Yuan K, Sun C, Yang P. Development and clinical advancement of small molecules for ex vivo expansion of hematopoietic stem cell. Acta Pharm Sin B 2021; 12:2808-2831. [PMID: 35755294 PMCID: PMC9214065 DOI: 10.1016/j.apsb.2021.12.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 12/02/2021] [Accepted: 12/09/2021] [Indexed: 02/08/2023] Open
Abstract
Hematopoietic stem cell (HSC) transplantation is the only curative therapy for many diseases. HSCs from umbilical cord blood (UCB) source have many advantages over from bone marrow. However, limited HSC dose in a single CB unit restrict its widespread use. Over the past two decades, ex vivo HSC expansion with small molecules has been an effective approach for obtaining adequate HSCs. Till now, several small-molecule compounds have entered the phase I/II trials, showing safe and favorable pharmacological profiles. As HSC expansion has become a hot topic over recent years, many newly identified small molecules along with novel biological mechanisms for HSC expansion would help solve this challenging issue. Here, we will give an overview of HSC biology, discovery and medicinal chemistry development of small molecules, natural products targeting for HSC expansion, and their recent clinical progresses, as well as potential protein targets for HSC expansion.
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29
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Termini CM, Pang A, Fang T, Roos M, Chang VY, Zhang Y, Setiawan NJ, Signaevskaia L, Li M, Kim MM, Tabibi O, Lin PK, Sasine JP, Chatterjee A, Murali R, Himburg HA, Chute JP. Neuropilin 1 regulates bone marrow vascular regeneration and hematopoietic reconstitution. Nat Commun 2021; 12:6990. [PMID: 34848712 PMCID: PMC8635308 DOI: 10.1038/s41467-021-27263-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 11/07/2021] [Indexed: 12/27/2022] Open
Abstract
Ionizing radiation and chemotherapy deplete hematopoietic stem cells and damage the vascular niche wherein hematopoietic stem cells reside. Hematopoietic stem cell regeneration requires signaling from an intact bone marrow (BM) vascular niche, but the mechanisms that control BM vascular niche regeneration are poorly understood. We report that BM vascular endothelial cells secrete semaphorin 3 A (SEMA3A) in response to myeloablation and SEMA3A induces p53 - mediated apoptosis in BM endothelial cells via signaling through its receptor, Neuropilin 1 (NRP1), and activation of cyclin dependent kinase 5. Endothelial cell - specific deletion of Nrp1 or Sema3a or administration of anti-NRP1 antibody suppresses BM endothelial cell apoptosis, accelerates BM vascular regeneration and concordantly drives hematopoietic reconstitution in irradiated mice. In response to NRP1 inhibition, BM endothelial cells increase expression and secretion of the Wnt signal amplifying protein, R spondin 2. Systemic administration of anti - R spondin 2 blocks HSC regeneration and hematopoietic reconstitution which otherwise occurrs in response to NRP1 inhibition. SEMA3A - NRP1 signaling promotes BM vascular regression following myelosuppression and therapeutic blockade of SEMA3A - NRP1 signaling in BM endothelial cells accelerates vascular and hematopoietic regeneration in vivo.
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Affiliation(s)
- Christina M Termini
- Division of Hematology/Oncology, Department of Medicine, University of California, Los Angeles, CA, USA
- Division of Hematology & Cellular Therapy, Cedars Sinai Medical Center, Los Angeles, CA, USA
- Department of Orthopedic Surgery, UCLA, Los Angeles, CA, USA
| | - Amara Pang
- Division of Hematology & Cellular Therapy, Cedars Sinai Medical Center, Los Angeles, CA, USA
| | - Tiancheng Fang
- Division of Hematology/Oncology, Department of Medicine, University of California, Los Angeles, CA, USA
- Department of Molecular and Medical Pharmacology, UCLA, Los Angeles, CA, USA
| | - Martina Roos
- Division of Hematology/Oncology, Department of Medicine, University of California, Los Angeles, CA, USA
- Eli and Edythe Broad Stem Cell Research Center, UCLA, Los Angeles, CA, USA
- Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, CA, USA
| | - Vivian Y Chang
- Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, CA, USA
- Pediatric Hematology/Oncology, UCLA, Los Angeles, CA, USA
| | - Yurun Zhang
- Division of Hematology/Oncology, Department of Medicine, University of California, Los Angeles, CA, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA, USA
| | - Nicollette J Setiawan
- Division of Hematology & Cellular Therapy, Cedars Sinai Medical Center, Los Angeles, CA, USA
| | - Lia Signaevskaia
- Division of Hematology/Oncology, Department of Medicine, University of California, Los Angeles, CA, USA
| | - Michelle Li
- Division of Hematology/Oncology, Department of Medicine, University of California, Los Angeles, CA, USA
| | - Mindy M Kim
- Division of Hematology/Oncology, Department of Medicine, University of California, Los Angeles, CA, USA
| | - Orel Tabibi
- Division of Hematology/Oncology, Department of Medicine, University of California, Los Angeles, CA, USA
| | - Paulina K Lin
- Division of Hematology/Oncology, Department of Medicine, University of California, Los Angeles, CA, USA
| | - Joshua P Sasine
- Division of Hematology/Oncology, Department of Medicine, University of California, Los Angeles, CA, USA
- Division of Hematology & Cellular Therapy, Cedars Sinai Medical Center, Los Angeles, CA, USA
| | - Avradip Chatterjee
- Department of Biomedical Sciences, Research Division of Immunology, Los Angeles, USA
| | - Ramachandran Murali
- Department of Biomedical Sciences, Research Division of Immunology, Los Angeles, USA
| | - Heather A Himburg
- Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - John P Chute
- Division of Hematology & Cellular Therapy, Cedars Sinai Medical Center, Los Angeles, CA, USA.
- Regenerative Medicine Institute, Cedars Sinai Medical Center, Los Angeles, CA, USA.
- Samuel Oschin Cancer Center, Cedars Sinai Medical Center, Los Angeles, CA, USA.
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30
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Jin L, Gao F, Zhang L, Wang C, Hu L, Fan Z, Xia D. Pleiotropin enhances the osteo/dentinogenic differentiation potential of dental pulp stem cells. Connect Tissue Res 2021; 62:495-507. [PMID: 32580608 DOI: 10.1080/03008207.2020.1779238] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Purpose: Pleiotrophin (PTN) is a heparin-binding growth-associated molecule and expressed in ameloblasts and odontoblasts throughout tooth maturation. Our previous study has shown that PTN expressed more than 20-fold higher in dental tissue than dental stem cells. However, the role of PTN on proliferation and osteo/dentinogenesis of dental pulp stem cells (DPSCs) is unclear. The purpose of the present study was to investigate the role of PTN on the DPSCs' function.Methods: DPSCs were isolated from human third molars. Short hairpin RNAs (shRNAs) was used to knock down the PTN expression in DPSCs. Real-time RT-PCR, alizarin red staining, quantitative calcium analysis, in vivo transplantation and cell counting kit-8 (CCK8) assay were used to study the function of DPSCs. Possible mechanism was studied by RNA sequencing.Results: After PTN depletion, ALP activity and mineralization ability of DPSCs decreased. Expression of DMP-1 and BSP weakened. Proliferation of DPSCs at 48 h and 72 h was inhibited. Furthermore, 50 pg/mL PTN recombinant protein rescued the impaired osteo/dentinogenic differentiation potential and proliferation ability caused by PTN depletion. In addition, RNA sequencing showed 221 genes were downregulated and 233 genes upregulated in PTN depleted DPSCs. Several genes including BMP2 and IGFBP5 might be associated with PTN function on the DPSCs. P53 and the AMPK signaling pathways were involved. LncRNA analysis displayed 47 significantly upregulated lncRNA and 31 downregulated lncRNA comparing PTN depleted DPSCs with the control.Conclusion: Our research demonstrated that PTN has a positive role in maintaining DPSCs proliferation and osteo/dentinogenic differentiation potential.
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Affiliation(s)
- Luyuan Jin
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China.,Department of General Dentistry and Integrated Emergency Dental Care, Beijing Stomatological Hospital, Capital Medical University, Beijing, China.,Molecular Laboratory for Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Feifei Gao
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Lili Zhang
- Department of General Dentistry and Integrated Emergency Dental Care, Beijing Stomatological Hospital, Capital Medical University, Beijing, China
| | - Chao Wang
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Lei Hu
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China.,Molecular Laboratory for Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Zhipeng Fan
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Dengsheng Xia
- Department of General Dentistry and Integrated Emergency Dental Care, Beijing Stomatological Hospital, Capital Medical University, Beijing, China
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31
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Gao L, Decker M, Chen H, Ding L. Thrombopoietin from hepatocytes promotes hematopoietic stem cell regeneration after myeloablation. eLife 2021; 10:e69894. [PMID: 34463253 PMCID: PMC8457823 DOI: 10.7554/elife.69894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 08/27/2021] [Indexed: 11/13/2022] Open
Abstract
The bone marrow niche plays critical roles in hematopoietic recovery and hematopoietic stem cell (HSC) regeneration after myeloablative stress. However, it is not clear whether systemic factors beyond the local niche are required for these essential processes in vivo. Thrombopoietin (THPO) is a key cytokine promoting hematopoietic rebound after myeloablation and its transcripts are expressed by multiple cellular sources. The upregulation of bone marrow-derived THPO has been proposed to be crucial for hematopoietic recovery and HSC regeneration after stress. Nonetheless, the cellular source of THPO in myeloablative stress has never been investigated genetically. We assessed the functional sources of THPO following two common myeloablative perturbations: 5-fluorouracil (5-FU) administration and irradiation. Using a Thpo translational reporter, we found that the liver but not the bone marrow is the major source of THPO protein after myeloablation. Mice with conditional Thpo deletion from osteoblasts and/or bone marrow stromal cells showed normal recovery of HSCs and hematopoiesis after myeloablation. In contrast, mice with conditional Thpo deletion from hepatocytes showed significant defects in HSC regeneration and hematopoietic rebound after myeloablation. Thus, systemic THPO from the liver is necessary for HSC regeneration and hematopoietic recovery in myeloablative stress conditions.
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Affiliation(s)
- Longfei Gao
- Columbia Stem Cell Initiative, Columbia University Medical CenterNew YorkUnited States
- Department of Rehabilitation and Regenerative Medicine, Columbia University Medical CenterNew YorkUnited States
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, United StatesNew YorkUnited States
| | - Matthew Decker
- Columbia Stem Cell Initiative, Columbia University Medical CenterNew YorkUnited States
- Department of Rehabilitation and Regenerative Medicine, Columbia University Medical CenterNew YorkUnited States
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, United StatesNew YorkUnited States
| | - Haidee Chen
- Columbia Stem Cell Initiative, Columbia University Medical CenterNew YorkUnited States
- Department of Rehabilitation and Regenerative Medicine, Columbia University Medical CenterNew YorkUnited States
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, United StatesNew YorkUnited States
| | - Lei Ding
- Columbia Stem Cell Initiative, Columbia University Medical CenterNew YorkUnited States
- Department of Rehabilitation and Regenerative Medicine, Columbia University Medical CenterNew YorkUnited States
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, United StatesNew YorkUnited States
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32
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Mao S, Yu J, Wang L, Zhu C. Pleiotrophin Potentiates Sevoflurane Anesthesia-induced Learning Deficits in Mice. J Mol Neurosci 2021; 72:48-55. [PMID: 34346038 DOI: 10.1007/s12031-021-01885-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 07/05/2021] [Indexed: 11/25/2022]
Abstract
Postoperative cognitive dysfunction (POCD) is a major postoperative neurological complication in children and the elderly. However, the detailed mechanisms underlying this process remain unclear. This study aims to investigate the effect of pleiotrophin on sevoflurane-induced neuroinflammation and cognitive impairment. The novel object recognition test was performed to evaluate the cognitive and motor function of aged C57BL/6 (wild-type, WT) and pleiotrophin-knockout mice treated with sevoflurane. Small molecule inhibitors targeting receptor protein tyrosine phosphatase (RPTP) β/ζ, a pleiotrophin receptor, were used to ameliorate cognitive dysfunction. Sevoflurane treatment induced cognitive dysfunction and motor impairment in aged WT mice. Sevoflurane anesthesia induced the upregulation of certain inflammatory cytokines. Pleiotrophin knockout ameliorated the sevoflurane-induced cognitive dysfunction and motor impairment in vivo. Treatment with small molecule inhibitors targeting RPTP β/ζ inhibited sevoflurane-induced neuroinflammation. In summary, pleiotrophin was shown to potentiate sevoflurane anesthesia-induced cognitive dysfunction and learning deficits in mice.
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Affiliation(s)
- Shunhong Mao
- Department of Anesthesiology, Cangzhou Central Hospital, No. 16 Xinhua Road, Cangzhou, Hebei, 061000, China
| | - Jian Yu
- Department of Anesthesiology, Cangzhou Central Hospital, No. 16 Xinhua Road, Cangzhou, Hebei, 061000, China
| | - Lei Wang
- Department of Anesthesiology, Cangzhou Central Hospital, No. 16 Xinhua Road, Cangzhou, Hebei, 061000, China
| | - Chunhua Zhu
- Department of Anesthesiology, Cangzhou Central Hospital, No. 16 Xinhua Road, Cangzhou, Hebei, 061000, China.
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33
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Wu G, Cheng Zhang C. Membrane protein CAR promotes hematopoietic regeneration upon stress. Haematologica 2021; 106:2180-2190. [PMID: 32586901 PMCID: PMC8327706 DOI: 10.3324/haematol.2019.243998] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Indexed: 12/16/2022] Open
Abstract
Adult hematopoietic stem cells (HSC) are quiescent most of the time, and how HSC switch from quiescence to proliferation following hematopoietic stress is unclear. Here we demonstrate that upon stress the coxsackievirus and adenovirus receptor CAR (also known as CXADR) is upregulated in HSC and critical for HSC entry into the cell cycle. Wild-type HSC were detected with more rapid repopulation ability than the CAR knockout counterparts. After fluorouracil treatment, CAR knockout HSC had lower levels of Notch1 expression and elevated protein level of Numb, a Notch antagonist. The Notch signaling inhibitor DAPT, dominant negative form of MAML (a transcriptional coactivator of Notch), or dominant negative mutant of LNX2 (an E3 ligase that acts on Numb and binds to CAR), all were capable of abrogating the function of CAR in HSC. We conclude that CAR activates Notch1 signaling by downregulating Numb protein expression to facilitate entry of quiescent HSC into the cell cycle during regeneration.
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Affiliation(s)
- Guojin Wu
- Department of Physiology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Cheng Cheng Zhang
- Department of Physiology, University of Texas Southwestern Medical Center, Dallas, TX, USA
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34
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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: 28] [Impact Index Per Article: 9.3] [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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35
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VEGF-C protects the integrity of the bone marrow perivascular niche in mice. Blood 2021; 136:1871-1883. [PMID: 32842144 DOI: 10.1182/blood.2020005699] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 07/31/2020] [Indexed: 01/10/2023] Open
Abstract
Hematopoietic stem cells (HSCs) reside in the bone marrow (BM) stem cell niche, which provides a vital source of HSC regulatory signals. Radiation and chemotherapy disrupt the HSC niche, including its sinusoidal vessels and perivascular cells, contributing to delayed hematopoietic recovery. Thus, identification of factors that can protect the HSC niche during an injury could offer a significant therapeutic opportunity to improve hematopoietic regeneration. In this study, we identified a critical function for vascular endothelial growth factor-C (VEGF-C), that of maintaining the integrity of the BM perivascular niche and improving BM niche recovery after irradiation-induced injury. Both global and conditional deletion of Vegfc in endothelial or leptin receptor-positive (LepR+) cells led to a disruption of the BM perivascular niche. Furthermore, deletion of Vegfc from the microenvironment delayed hematopoietic recovery after transplantation by decreasing endothelial proliferation and LepR+ cell regeneration. Exogenous administration of VEGF-C via an adenoassociated viral vector improved hematopoietic recovery after irradiation by accelerating endothelial and LepR+ cell regeneration and by increasing the expression of hematopoietic regenerative factors. Our results suggest that preservation of the integrity of the perivascular niche via VEGF-C signaling could be exploited therapeutically to enhance hematopoietic regeneration.
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36
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Zhang Y, Ma L, Lu E, Huang W. Atorvastatin Upregulates microRNA-186 and Inhibits the TLR4-Mediated MAPKs/NF-κB Pathway to Relieve Steroid-Induced Avascular Necrosis of the Femoral Head. Front Pharmacol 2021; 12:583975. [PMID: 33995003 PMCID: PMC8115218 DOI: 10.3389/fphar.2021.583975] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 02/03/2021] [Indexed: 12/28/2022] Open
Abstract
Steroid-induced avascular necrosis of the femoral head (SANFH) is caused by the death of active components of the femoral head owing to hormone overdoses. The use of lipid-lowering drugs to prevent SANFH in animals inspired us to identify the mechanisms involving Atorvastatin (Ato) in SANFH. However, it is still not well understood how and to what extent Ato affects SANFH. This study aimed to figure out the efficacy of Ato in SANFH and the underlying molecular mechanisms. After establishment of the SANFH model, histological evaluation, lipid metabolism, inflammatory cytokines, oxidative stress, apoptosis, and autophagy of the femoral head were evaluated. The differentially expressed microRNAs (miRs) after Ato treatment were screened out using microarray analysis. The downstream gene and pathway of miR-186 were predicted and their involvement in SANFH rats was analyzed. OB-6 cells were selected to simulate SANFH in vitro. Cell viability, cell damage, inflammation responses, apoptosis, and autophagy were assessed. Ato alleviated SANFH, inhibited apoptosis, and promoted autophagy. miR-186 was significantly upregulated after Ato treatment. miR-186 targeted TLR4 and inactivated the MAPKs/NF-κB pathway. Inhibition of miR-186 reversed the protection of Ato on SANFH rats, while inhibition of TLR4 restored the protective effect of Ato. Ato reduced apoptosis and promoted autophagy of OB-6 cells by upregulating miR-186 and inhibiting the TLR4/MAPKs/NF-κB pathway. In conclusion, Ato reduced apoptosis and promoted autophagy, thus alleviating SANFH via miR-186 and the TLR4-mediated MAPKs/NF-κB pathway.
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Affiliation(s)
- Yusong Zhang
- Department of Orthopedics, Xinhui People's Hospital of Southern Medical University, Jiangmen, China.,Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Medical Biomechanics, National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Limin Ma
- Department of Orthopedics, Xinhui People's Hospital of Southern Medical University, Jiangmen, China.,Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Medical Biomechanics, National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Erhai Lu
- Department of Orthopedics, Xinhui People's Hospital of Southern Medical University, Jiangmen, China
| | - Wenhua Huang
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Medical Biomechanics, National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Medical Innovation Platform for Translation of 3D Printing Application, Southern Medical University, The Third Affiliated Hospital of Southern Medical University, Southern Medical University, Guangzhou, China.,Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Guangdong Medical University, Zhanjiang, China
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37
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Barcia Durán JG, Lu T, Houghton S, Geng F, Schreiner R, Xiang J, Rafii S, Redmond D, Lis R. Endothelial Jak3 expression enhances pro-hematopoietic angiocrine function in mice. Commun Biol 2021; 4:406. [PMID: 33767339 PMCID: PMC7994450 DOI: 10.1038/s42003-021-01846-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 02/12/2021] [Indexed: 02/08/2023] Open
Abstract
Jak3 is the only non-promiscuous member of the Jak family of secondary messengers. Studies to date have focused on understanding and targeting the cell-autonomous role of Jak3 in immunity, while functional Jak3 expression outside the hematopoietic system remains largely unreported. We show that Jak3 is expressed in endothelial cells across hematopoietic and non-hematopoietic organs, with heightened expression in the bone marrow. The bone marrow niche is understood as a network of different cell types that regulate hematopoietic function. We show that the Jak3-/- bone marrow niche is deleterious for the maintenance of long-term repopulating hematopoietic stem cells (LT-HSCs) and that JAK3-overexpressing endothelial cells have increased potential to expand LT-HSCs in vitro. This work may serve to identify a novel function for a highly specific tyrosine kinase in the bone marrow vascular niche and to further characterize the LT-HSC function of sinusoidal endothelium.
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Affiliation(s)
- José Gabriel Barcia Durán
- Ansary Stem Cell Institute, Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Tyler Lu
- Ansary Stem Cell Institute, Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA
- Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine and Infertility, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Sean Houghton
- Ansary Stem Cell Institute, Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Fuqiang Geng
- Ansary Stem Cell Institute, Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Ryan Schreiner
- Ansary Stem Cell Institute, Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA
- Department of Ophthalmology, Margaret Dyson Vision Research Institute, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Jenny Xiang
- Genomics Resources Core Facility, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Shahin Rafii
- Ansary Stem Cell Institute, Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA
- Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine and Infertility, Weill Cornell Medicine, New York, NY, 10065, USA
| | - David Redmond
- Ansary Stem Cell Institute, Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA.
| | - Raphaël Lis
- Ansary Stem Cell Institute, Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA.
- Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine and Infertility, Weill Cornell Medicine, New York, NY, 10065, USA.
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38
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Lysine-specific demethylase 1A restricts ex vivo propagation of human HSCs and is a target of UM171. Blood 2021; 136:2151-2161. [PMID: 32582923 DOI: 10.1182/blood.2020005827] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 06/07/2020] [Indexed: 12/23/2022] Open
Abstract
Culture conditions in which hematopoietic stem cells (HSCs) can be expanded for clinical benefit are highly sought after. Here, we report that inhibition of the epigenetic regulator lysine-specific histone demethylase 1A (LSD1) induces a rapid expansion of human cord blood-derived CD34+ cells and promotes in vitro propagation of long-term repopulating HSCs by preventing differentiation. The phenotype and molecular characteristics of cells treated with LSD1 inhibitors were highly similar to cells treated with UM171, an agent promoting expansion of HSCs through undefined mechanisms and currently being tested in clinical trials. Strikingly, we found that LSD1, as well as other members of the LSD1-containing chromatin remodeling complex CoREST, is rapidly polyubiquitinated and degraded upon UM171 treatment. CRISPR (clustered regularly interspaced short palindromic repeats)/Cas9 depletion of the CoREST core member, RCOR1, resulted in expansion of CD34+ cells similar to LSD1 inhibition and UM171. Taken together, LSD1 and CoREST restrict HSC expansion and are principal targets of UM171, forming a mechanistic basis for the HSC-promoting activity of UM171.
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Abstract
Obesity and obesity-related diseases like type 2 diabetes (T2D) are prominent global health issues; therefore, there is a need to better understand the mechanisms underlying these conditions. The onset of obesity is characterized by accumulation of proinflammatory cells, including Ly6chi monocytes (which differentiate into proinflammatory macrophages) and neutrophils, in metabolic tissues. This shift toward chronic, low-grade inflammation is an obese-state hallmark and highly linked to metabolic disorders and other obesity comorbidities. The mechanisms that induce and maintain increased inflammatory myelopoiesis are of great interest, with a recent focus on how obesity affects more primitive hematopoietic cells. The hematopoietic system is constantly replenished by proper regulation of hematopoietic stem and progenitor (HSPC) pools in the BM. While early research suggests that chronic obesity promotes expansion of myeloid-skewed HSPCs, the involvement of the hematopoietic stem cell (HSC) niche in regulating obesity-induced myelopoiesis remains undefined. In this review, we explore the role of the multicellular HSC niche in hematopoiesis and inflammation, and the potential contribution of this niche to the hematopoietic response to obesity. This review further aims to summarize the potential HSC niche involvement as a target of obesity-induced inflammation and a driver of obesity-induced myelopoiesis.
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40
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Zhan H, Kaushansky K. The Hematopoietic Microenvironment in Myeloproliferative Neoplasms: The Interplay Between Nature (Stem Cells) and Nurture (the Niche). ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1273:135-145. [PMID: 33119879 DOI: 10.1007/978-3-030-49270-0_7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Hematopoietic stem cells (HSCs) rely on instructive cues from the marrow microenvironment for their maintenance and function. Accumulating evidence indicates that the survival and proliferation of hematopoietic neoplasms are dependent not only on cell-intrinsic, genetic mutations, and other molecular alterations present within neoplastic stem cells, but also on the ability of the surrounding microenvironmental cells to nurture and promote the malignancy. It is anticipated that a better understanding of the molecular and cellular events responsible for these microenvironmental features of neoplastic hematopoiesis will lead to improved treatment for patients. This review will focus on the myeloproliferative neoplasms (MPNs), polycythemia vera (PV), essential thrombocythemia (ET), and primary myelofibrosis (PMF), in which an acquired signaling kinase mutation (JAK2V617F) plays a central, pathogenetic role in 50-100% of patients with these disorders. Evidence is presented that the development of an MPN requires both an abnormal, mutation-bearing (i.e., neoplastic) HSC and an abnormal, mutation-bearing microenvironment.
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Affiliation(s)
- Huichun Zhan
- Division of Hematology-Oncology, Department of Medicine, Stony Brook School of Medicine, Stony Brook, NY, USA. .,Northport VA Medical Center, Northport, NY, USA.
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41
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Tatetsu H, Tenen DG, Chai L. The Interplay between Transcription Factor SALL4 and Histone Modifiers in Hematopoietic Stem and Progenitor Cells. JOURNAL OF CELLULAR IMMUNOLOGY 2021; 3:26-30. [PMID: 33884376 PMCID: PMC8057709 DOI: 10.33696/immunology.3.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
- Hiro Tatetsu
- Department of Hematology, Rheumatology and Infectious Diseases, Kumamoto University Hospital, Kumamoto, Japan, 860-8556
- Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
| | - Daniel G. Tenen
- Cancer Science Institute of Singapore, National University of Singapore, Centre for Translational Medicine (MD6), #12-01, 14 Medical Drive, Singapore 117599
- Harvard Stem Cell Institute, Center for Life Science Room 437, 3 Blackfan Circle Room 437, Boston, MA 02115, USA
| | - Li Chai
- Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
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42
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Yuan S, Sun G, Zhang Y, Dong F, Cheng H, Cheng T. Understanding the "SMART" features of hematopoietic stem cells and beyond. SCIENCE CHINA. LIFE SCIENCES 2021; 64:2030-2044. [PMID: 34341896 PMCID: PMC8328818 DOI: 10.1007/s11427-021-1961-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 05/10/2021] [Indexed: 02/07/2023]
Abstract
Since the huge success of bone marrow transplantation technology in clinical practice, hematopoietic stem cells (HSCs) have become the gold standard for defining the properties of adult stem cells (ASCs). Here, we describe the "self-renewal, multi-lineage differentiation, apoptosis, rest, and trafficking" or "SMART" model, which has been developed based on data derived from studies of HSCs as the most well-characterized stem cell type. Given the potential therapeutic applications of ASCs, we delineate the key characteristics of HSCs using this model and speculate on the physiological relevance of stem cells identified in other tissues. Great strides are being made in understanding the biology of ASCs, and efforts are now underway to develop safe and effective ASC-based therapies in this emerging area.
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Affiliation(s)
- Shiru Yuan
- grid.506261.60000 0001 0706 7839State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020 China
| | - Guohuan Sun
- grid.506261.60000 0001 0706 7839State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020 China
| | - Yawen Zhang
- grid.506261.60000 0001 0706 7839State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020 China
| | - Fang Dong
- grid.506261.60000 0001 0706 7839State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020 China ,grid.506261.60000 0001 0706 7839Center for Stem Cell Medicine, Chinese Academy of Medical Sciences, Tianjin, 300020 China ,grid.506261.60000 0001 0706 7839Department of Stem Cell & Regenerative Medicine, Peking Union Medical College, Tianjin, 300020 China
| | - Hui Cheng
- grid.506261.60000 0001 0706 7839State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020 China ,grid.506261.60000 0001 0706 7839Center for Stem Cell Medicine, Chinese Academy of Medical Sciences, Tianjin, 300020 China ,grid.506261.60000 0001 0706 7839Department of Stem Cell & Regenerative Medicine, Peking Union Medical College, Tianjin, 300020 China
| | - Tao Cheng
- grid.506261.60000 0001 0706 7839State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020 China ,grid.506261.60000 0001 0706 7839Center for Stem Cell Medicine, Chinese Academy of Medical Sciences, Tianjin, 300020 China ,grid.506261.60000 0001 0706 7839Department of Stem Cell & Regenerative Medicine, Peking Union Medical College, Tianjin, 300020 China
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43
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44
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Shen ZH, Hu XQ, Hu MJ, Pan XK, Lu HG, Chen B, Wu B, Chen G. Activation of AKT signaling via small molecule natural compound prevents against osteoblast apoptosis and osteonecrosis of the femoral head. Am J Transl Res 2020; 12:7211-7222. [PMID: 33312361 PMCID: PMC7724333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 09/10/2020] [Indexed: 06/12/2023]
Abstract
Vinpocetine (Vinp), a natural compound extracted from the leaves of Phyllostachys pubescens with apoptosis modulatory properties in variety of disorders. In the present study, we investigated the possible mechanism of Vinp in alleviating of the progress of osteonecrosis of the femoral head (ONFH) both in vitro and in vivo experiments. The results showed that treatment with Vinp suppressed the dexamethasone (Dex) induced over-regulation of ROS level and apoptotic factors. Mechanistically, the Vinp activated Akt signaling pathway in osteoblast. Moreover, Vinp exerted a protective role in animal ONFH model. To summarize, this work illustrated Vinp possessed a new potential therapeutic drug in ONFH.
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Affiliation(s)
- Zhong-Hai Shen
- Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University Jiaxing, Zhejiang, China
| | - Xu-Qi Hu
- Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University Jiaxing, Zhejiang, China
| | - Min-Jie Hu
- Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University Jiaxing, Zhejiang, China
| | - Xue-Kang Pan
- Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University Jiaxing, Zhejiang, China
| | - Hui-Gen Lu
- Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University Jiaxing, Zhejiang, China
| | - Bao Chen
- Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University Jiaxing, Zhejiang, China
| | - Bin Wu
- Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University Jiaxing, Zhejiang, China
| | - Gang Chen
- Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University Jiaxing, Zhejiang, China
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45
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Dong Z, Li C, Coates D. PTN-PTPRZ signalling is involved in deer antler stem cell regulation during tissue regeneration. J Cell Physiol 2020; 236:3752-3769. [PMID: 33111346 DOI: 10.1002/jcp.30115] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 10/06/2020] [Accepted: 10/08/2020] [Indexed: 12/22/2022]
Abstract
A growing deer antler contains a stem cell niche that can drive endochondral bone regeneration at up to 2 cm/day. Pleiotrophin (PTN), as a multifunctional growth factor, is found highly expressed at the messenger RNA level within the active antler stem cell tissues. This study aims to map the expression patterns of PTN protein and its receptors in a growing antler and investigate the effects of PTN on antler stem cells in vitro. Immunohistochemistry was employed to localise PTN/midkine (MDK) and their functional receptors, protein tyrosine phosphatase receptor type Z (PTPRZ), anaplastic lymphoma kinase (ALK), NOTCH2, and integrin αV β3, on serial slides of the antler growth centre. PTN was found to be the dominantly expressed growth factor in the PTN/MDK family. High expression of PTPRZ and ALK co-localised with PTN was found suggesting a potential interaction. The high levels of PTN and PTPRZ reflected the antler stem cell activation status during the regenerative process. When antler stem cells were cultured in vitro under the normoxic condition, no PTN protein was detected and exogenous PTN did not induce differentiation or proliferation but rather stem cell maintenance. Collectively, the antler stem cell niche appears to upregulate PTN and PTPRZ in vivo, and PTN-PTPRZ signalling may be involved in regulating antler stem cell behaviour during rapid antler regeneration.
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Affiliation(s)
- Zhen Dong
- Faculty of Dentistry, Sir John Walsh Research Institute, University of Otago, Dunedin, New Zealand
| | - Chunyi Li
- Institute of Antler Science and Product Technology, Changchun Sci-Tech University, Changchun, China
| | - Dawn Coates
- Faculty of Dentistry, Sir John Walsh Research Institute, University of Otago, Dunedin, New Zealand
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46
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Xiong Z, Xia P, Zhu X, Geng J, Wang S, Ye B, Qin X, Qu Y, He L, Fan D, Du Y, Tian Y, Fan Z. Glutamylation of deubiquitinase BAP1 controls self-renewal of hematopoietic stem cells and hematopoiesis. J Exp Med 2020; 217:jem.20190974. [PMID: 31699823 PMCID: PMC7041701 DOI: 10.1084/jem.20190974] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 08/27/2019] [Accepted: 10/09/2019] [Indexed: 12/17/2022] Open
Abstract
Xiong et al. show that CCP3 performs deglutamylation of BAP1 to stabilize BAP1, which eliminates H2AK119Ub from Hoxa1 promoter and initiates Hoxa1 expression, leading to enhanced HSC self-renewal. All hematopoietic lineages are derived from a limited pool of hematopoietic stem cells (HSCs). Although the mechanisms underlying HSC self-renewal have been extensively studied, little is known about the role of protein glutamylation and deglutamylation in hematopoiesis. Here, we show that carboxypeptidase CCP3 is most highly expressed in BM cells among CCP members. CCP3 deficiency impairs HSC self-renewal and hematopoiesis. Deubiquitinase BAP1 is a substrate for CCP3 in HSCs. BAP1 is glutamylated at Glu651 by TTLL5 and TTLL7, and BAP1-E651A mutation abrogates BAP1 glutamylation. BAP1 glutamylation accelerates its ubiquitination to trigger its degradation. CCP3 can remove glutamylation of BAP1 to promote its stability, which enhances Hoxa1 expression, leading to HSC self-renewal. Bap1E651A mice produce higher numbers of LT-HSCs and peripheral blood cells. Moreover, TTLL5 and TTLL7 deficiencies sustain BAP1 stability to promote HSC self-renewal and hematopoiesis. Therefore, glutamylation and deglutamylation of BAP1 modulate HSC self-renewal and hematopoiesis.
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Affiliation(s)
- Zhen Xiong
- Key Laboratory of Infection and Immunity of Chinese Academy of Sciences, Chinese Academy of Sciences Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Pengyan Xia
- Key Laboratory of Infection and Immunity of Chinese Academy of Sciences, Chinese Academy of Sciences Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Xiaoxiao Zhu
- Key Laboratory of RNA Biology of Chinese Academy of Sciences, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Jingjing Geng
- Key Laboratory of Infection and Immunity of Chinese Academy of Sciences, Chinese Academy of Sciences Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Shuo Wang
- Key Laboratory of Infection and Immunity of Chinese Academy of Sciences, Chinese Academy of Sciences Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Buqing Ye
- Key Laboratory of Infection and Immunity of Chinese Academy of Sciences, Chinese Academy of Sciences Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Xiwen Qin
- Key Laboratory of Infection and Immunity of Chinese Academy of Sciences, Chinese Academy of Sciences Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Yuan Qu
- Key Laboratory of Infection and Immunity of Chinese Academy of Sciences, Chinese Academy of Sciences Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Luyun He
- Key Laboratory of Infection and Immunity of Chinese Academy of Sciences, Chinese Academy of Sciences Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Dongdong Fan
- Key Laboratory of RNA Biology of Chinese Academy of Sciences, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Ying Du
- Key Laboratory of Infection and Immunity of Chinese Academy of Sciences, Chinese Academy of Sciences Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Yong Tian
- University of Chinese Academy of Sciences, Beijing, China.,Key Laboratory of RNA Biology of Chinese Academy of Sciences, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Zusen Fan
- Key Laboratory of Infection and Immunity of Chinese Academy of Sciences, Chinese Academy of Sciences Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
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47
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Himburg HA, Roos M, Fang T, Zhang Y, Termini CM, Schlussel L, Kim M, Pang A, Kan J, Zhao L, Suh H, Sasine JP, Sapparapu G, Bowers PM, Schiller G, Chute JP. Chronic myeloid leukemia stem cells require cell-autonomous pleiotrophin signaling. J Clin Invest 2020; 130:315-328. [PMID: 31613796 DOI: 10.1172/jci129061] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 09/25/2019] [Indexed: 01/11/2023] Open
Abstract
Tyrosine kinase inhibitors (TKIs) induce molecular remission in the majority of patients with chronic myelogenous leukemia (CML), but the persistence of CML stem cells hinders cure and necessitates indefinite TKI therapy. We report that CML stem cells upregulate the expression of pleiotrophin (PTN) and require cell-autonomous PTN signaling for CML pathogenesis in BCR/ABL+ mice. Constitutive PTN deletion substantially reduced the numbers of CML stem cells capable of initiating CML in vivo. Hematopoietic cell-specific deletion of PTN suppressed CML development in BCR/ABL+ mice, suggesting that cell-autonomous PTN signaling was necessary for CML disease evolution. Mechanistically, PTN promoted CML stem cell survival and TKI resistance via induction of Jun and the unfolded protein response. Human CML cells were also dependent on cell-autonomous PTN signaling, and anti-PTN antibody suppressed human CML colony formation and CML repopulation in vivo. Our results suggest that targeted inhibition of PTN has therapeutic potential to eradicate CML stem cells.
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Affiliation(s)
- Heather A Himburg
- Division of Hematology/Oncology, Department of Medicine, UCLA, Los Angeles, California, USA
| | - Martina Roos
- Division of Hematology/Oncology, Department of Medicine, UCLA, Los Angeles, California, USA.,Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, California, USA
| | - Tiancheng Fang
- Division of Hematology/Oncology, Department of Medicine, UCLA, Los Angeles, California, USA.,Department of Molecular and Medical Pharmacology, UCLA, Los Angeles, California, USA
| | - Yurun Zhang
- Molecular Biology Institute, UCLA, Los Angeles, California, USA
| | - Christina M Termini
- Division of Hematology/Oncology, Department of Medicine, UCLA, Los Angeles, California, USA
| | - Lauren Schlussel
- Division of Hematology/Oncology, Department of Medicine, UCLA, Los Angeles, California, USA
| | - Mindy Kim
- Division of Hematology/Oncology, Department of Medicine, UCLA, Los Angeles, California, USA
| | - Amara Pang
- Division of Hematology/Oncology, Department of Medicine, UCLA, Los Angeles, California, USA
| | - Jenny Kan
- Division of Hematology/Oncology, Department of Medicine, UCLA, Los Angeles, California, USA
| | - Liman Zhao
- Division of Hematology/Oncology, Department of Medicine, UCLA, Los Angeles, California, USA
| | - Hyung Suh
- Division of Hematology/Oncology, Department of Medicine, UCLA, Los Angeles, California, USA
| | - Joshua P Sasine
- Division of Hematology/Oncology, Department of Medicine, UCLA, Los Angeles, California, USA.,Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, California, USA
| | - Gopal Sapparapu
- UCLA Clinical and Translational Science Institute, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Peter M Bowers
- UCLA Clinical and Translational Science Institute, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Gary Schiller
- Division of Hematology/Oncology, Department of Medicine, UCLA, Los Angeles, California, USA.,Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, California, USA
| | - John P Chute
- Division of Hematology/Oncology, Department of Medicine, UCLA, Los Angeles, California, USA.,Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, California, USA.,Eli and Edythe Broad Center for Stem Cell Research and Regenerative Medicine, UCLA, Los Angeles, California, USA
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48
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Abstract
The self-renewal capacity of multipotent haematopoietic stem cells (HSCs) supports blood system homeostasis throughout life and underlies the curative capacity of clinical HSC transplantation therapies. However, despite extensive characterization of the HSC state in the adult bone marrow and embryonic fetal liver, the mechanism of HSC self-renewal has remained elusive. This Review presents our current understanding of HSC self-renewal in vivo and ex vivo, and discusses important advances in ex vivo HSC expansion that are providing new biological insights and offering new therapeutic opportunities.
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49
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Budgude P, Kale V, Vaidya A. Mesenchymal stromal cell‐derived extracellular vesicles as cell‐free biologics for the ex vivo expansion of hematopoietic stem cells. Cell Biol Int 2020; 44:1078-1102. [DOI: 10.1002/cbin.11313] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 01/31/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Pallavi Budgude
- Symbiosis Centre for Stem Cell ResearchSymbiosis International (Deemed University) Pune 412115 India
| | - Vaijayanti Kale
- Symbiosis Centre for Stem Cell ResearchSymbiosis International (Deemed University) Pune 412115 India
| | - Anuradha Vaidya
- Symbiosis Centre for Stem Cell ResearchSymbiosis International (Deemed University) Pune 412115 India
- Symbiosis School of Biological SciencesSymbiosis International (Deemed University) Pune 412115 India
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50
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Abstract
A central feature of atherosclerosis, the most prevalent chronic vascular disease and root cause of myocardial infarction and stroke, is leukocyte accumulation in the arterial wall. These crucial immune cells are produced in specialized niches in the bone marrow, where a complex cell network orchestrates their production and release. A growing body of clinical studies has documented a correlation between leukocyte numbers and cardiovascular disease risk. Understanding how leukocytes are produced and how they contribute to atherosclerosis and its complications is, therefore, critical to understanding and treating the disease. In this review, we focus on the key cells and products that regulate hematopoiesis under homeostatic conditions, during atherosclerosis and after myocardial infarction.
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Affiliation(s)
- Wolfram C Poller
- From the Center for Systems Biology (W.C.P., M.N., F.K.S.), Massachusetts General Hospital and Harvard Medical School, Boston
| | - Matthias Nahrendorf
- From the Center for Systems Biology (W.C.P., M.N., F.K.S.), Massachusetts General Hospital and Harvard Medical School, Boston.,Department of Radiology (M.N., F.K.S.), Massachusetts General Hospital and Harvard Medical School, Boston
| | - Filip K Swirski
- From the Center for Systems Biology (W.C.P., M.N., F.K.S.), Massachusetts General Hospital and Harvard Medical School, Boston.,Department of Radiology (M.N., F.K.S.), Massachusetts General Hospital and Harvard Medical School, Boston
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