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Wu T, Pelus LM, Plett PA, Sampson CH, Chua HL, Fisher A, Feng H, Liu L, Li H, Ortiz M, Chittajallu S, Luo Q, Bhatwadekar AD, Meyer TB, Zhang X, Zhou D, Fischer KD, McKinzie DL, Miller SJ, Orschell CM. Further Characterization of Multi-Organ DEARE and Protection by 16,16 Dimethyl Prostaglandin E2 in a Mouse Model of the Hematopoietic Acute Radiation Syndrome. Radiat Res 2023; 199:468-489. [PMID: 37014943 PMCID: PMC10278147 DOI: 10.1667/rade-22-00208.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 03/15/2023] [Indexed: 04/06/2023]
Abstract
Survivors of acute radiation exposure suffer from the delayed effects of acute radiation exposure (DEARE), a chronic condition affecting multiple organs, including lung, kidney, heart, gastrointestinal tract, eyes, and brain, and often causing cancer. While effective medical countermeasures (MCM) for the hematopoietic-acute radiation syndrome (H-ARS) have been identified and approved by the FDA, development of MCM for DEARE has not yet been successful. We previously documented residual bone marrow damage (RBMD) and progressive renal and cardiovascular DEARE in murine survivors of H-ARS, and significant survival efficacy of 16,16-dimethyl prostaglandin E2 (dmPGE2) given as a radioprotectant or radiomitigator for H-ARS. We now describe additional DEARE (physiological and neural function, progressive fur graying, ocular inflammation, and malignancy) developing after sub-threshold doses in our H-ARS model, and detailed analysis of the effects of dmPGE2 administered before (PGE-pre) or after (PGE-post) lethal total-body irradiation (TBI) on these DEARE. Administration of PGE-pre normalized the twofold reduction of white blood cells (WBC) and lymphocytes seen in vehicle-treated survivors (Veh), and increased the number of bone marrow (BM) cells, splenocytes, thymocytes, and phenotypically defined hematopoietic progenitor cells (HPC) and hematopoietic stem cells (HSC) to levels equivalent to those in non-irradiated age-matched controls. PGE-pre significantly protected HPC colony formation ex vivo by >twofold, long term-HSC in vivo engraftment potential up to ninefold, and significantly blunted TBI-induced myeloid skewing. Secondary transplantation documented continued production of LT-HSC with normal lineage differentiation. PGE-pre reduced development of DEARE cardiovascular pathologies and renal damage; prevented coronary artery rarefication, blunted progressive loss of coronary artery endothelia, reduced inflammation and coronary early senescence, and blunted radiation-induced increase in blood urea nitrogen (BUN). Ocular monocytes were significantly lower in PGE-pre mice, as was TBI-induced fur graying. Increased body weight and decreased frailty in male mice, and reduced incidence of thymic lymphoma were documented in PGE-pre mice. In assays measuring behavioral and cognitive functions, PGE-pre reduced anxiety in females, significantly blunted shock flinch response, and increased exploratory behavior in males. No effect of TBI was observed on memory in any group. PGE-post, despite significantly increasing 30-day survival in H-ARS and WBC and hematopoietic recovery, was not effective in reducing TBI-induced RBMD or any other DEARE. In summary, dmPGE2 administered as an H-ARS MCM before lethal TBI significantly increased 30-day survival and ameliorated RBMD and multi-organ and cognitive/behavioral DEARE to at least 12 months after TBI, whereas given after TBI, dmPGE2 enhances survival from H-ARS but has little impact on RBMD or other DEARE.
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Affiliation(s)
- Tong Wu
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - Louis M. Pelus
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana 46202
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - P. Artur Plett
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - Carol H. Sampson
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - Hui Lin Chua
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - Alexa Fisher
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - Hailin Feng
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - Liqiong Liu
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - Hongge Li
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - Miguel Ortiz
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - Supriya Chittajallu
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - Qianyi Luo
- Department of Ophthalmology, and Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - Ashay D. Bhatwadekar
- Department of Ophthalmology, and Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - Timothy B. Meyer
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - Xin Zhang
- Department of Pharmacodynamics, University of Florida, Gainesville, Florida 32611
| | - Daohong Zhou
- Department of Pharmacodynamics, University of Florida, Gainesville, Florida 32611
| | - Kathryn D. Fischer
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - David L. McKinzie
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - Steven J. Miller
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - Christie M. Orschell
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana 46202
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Guo B, Huang X, Chen Y, Broxmeyer HE. Ex Vivo Expansion and Homing of Human Cord Blood Hematopoietic Stem Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1442:85-104. [PMID: 38228960 DOI: 10.1007/978-981-99-7471-9_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Cord blood (CB) has been proven to be an alternative source of haematopoietic stem cells (HSCs) for clinical transplantation and has multiple advantages, including but not limited to greater HLA compatibility, lower incidence of graft-versus-host disease (GvHD), higher survival rates and lower relapse rates among patients with minimal residual disease. However, the limited number of HSCs in a single CB unit limits the wider use of CB in clinical treatment. Many efforts have been made to enhance the efficacy of CB HSC transplantation, particularly by ex vivo expansion or enhancing the homing efficiency of HSCs. In this chapter, we will document the major advances regarding human HSC ex vivo expansion and homing and will also discuss the possibility of clinical translation of such laboratory work.
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Affiliation(s)
- Bin Guo
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Xinxin Huang
- Xuhui Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China.
| | - Yandan Chen
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hal E Broxmeyer
- Department of Microbiology and Immunology, School of Medicine, Indiana University, Indianapolis, IN, USA.
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Qi J, Pan T, You T, Tang Y, Chu T, Chen J, Fan Y, Hu S, Yang F, Ruan C, Wu D, Han Y. Upregulation of HIF-1α contributes to complement activation in transplantation-associated thrombotic microangiopathy. Br J Haematol 2022; 199:603-615. [PMID: 35864790 DOI: 10.1111/bjh.18377] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 07/07/2022] [Accepted: 07/11/2022] [Indexed: 01/01/2023]
Abstract
Transplantation-associated thrombotic microangiopathy (TA-TMA) is a severe complication of haematopoietic stem cell transplantation (HSCT). Complement activation is involved in the development of TA-TMA. However, the underlying mechanism is unclear. Therefore, 21 samples of TA-TMA and 1:1 matched controls were measured for hypoxia-inducible factor-1α (HIF-1α) and complement protein. The mechanism was investigated both in vitro and in vivo. In this study, we found that levels of HIF-1α were significantly higher in TA-TMA patients than that in non-TA-TMA controls. Upregulation of HIF-1α induced an increase in membrane-bound complement C3 and dysfunction of human umbilical vein endothelial cells (HUVECs) in vitro. Increasing HIF-1α in vivo led to C3 and C5b-9 deposition in the glomerular endothelial capillary complex, thrombocytopenia, anaemia, and increased serum lactate dehydrogenase (LDH) levels in wild-type (WT) but not in C3-/- mice subjected to HSCT. High platelet aggregation in peripheral blood and CD41-positive microthrombi in the kidney were also found in dimethyloxallyl glycine (DMOG)-treated mice, recapitulating the TA-TMA phenotype seen in patients. Comprehensive analysis, including DNA array, luciferase reporter assay, chromatin immunoprecipitation (ChIP)-seq, and quantitative polymerase chain reaction (PCR), revealed that HIF-1α interacted with the promoter of complement factor H (CFH) to inhibit its transcription. Decreased CFH led to complement activation in endothelial cells.
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Affiliation(s)
- Jiaqian Qi
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China.,Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, China
| | - Tingting Pan
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China.,Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, China
| | - Tao You
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, China
| | - Yaqiong Tang
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China.,Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, China
| | - Tiantian Chu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jia Chen
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China.,Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, China
| | - Yi Fan
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China.,Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, China
| | - Shuhong Hu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China.,Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, China
| | - Fei Yang
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China.,Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, China
| | - Changgeng Ruan
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China.,Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, China
| | - Depei Wu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China.,Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, China
| | - Yue Han
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China.,Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, China.,State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, China
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Jiang DT, Tuo L, Bai X, Bing WD, Qu QX, Zhao X, Song GM, Bi YW, Sun WY. Prostaglandin E1 reduces apoptosis and improves the homing of mesenchymal stem cells in pulmonary arterial hypertension by regulating hypoxia-inducible factor 1 alpha. Stem Cell Res Ther 2022; 13:316. [PMID: 35842683 PMCID: PMC9288720 DOI: 10.1186/s13287-022-03011-x] [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: 10/07/2021] [Accepted: 05/14/2022] [Indexed: 11/17/2022] Open
Abstract
Background Pulmonary arterial hypertension (PAH) is associated with oxidative stress and affects the survival and homing of transplanted mesenchymal stem cells (MSCs) as well as cytokine secretion by the MSCs, thereby altering their therapeutic potential. In this study, we preconditioned the MSCs with prostaglandin E1 (PGE1) and performed in vitro and in vivo cell experiments to evaluate the therapeutic effects of MSCs in rats with PAH. Methods We studied the relationship between PGE1 and vascular endothelial growth factor (VEGF) secretion, B-cell lymphoma 2 (Bcl-2) expression, and C-X-C chemokine receptor 4 (CXCR4) expression in MSCs and MSC apoptosis as well as migration through the hypoxia-inducible factor (HIF) pathway in vitro. The experimental rats were randomly divided into five groups: (I) control group, (II) monocrotaline (MCT) group, (III) MCT + non-preconditioned (Non-PC) MSC group, (IV) MCT + PGE1-preconditioned (PGE1-PC) MSC group, and (V) MCT+PGE1+YC-1-PCMSC group. We studied methane dicarboxylic aldehyde (MDA) levels, MSC homing to rat lungs, mean pulmonary artery pressure, pulmonary artery systolic pressure, right ventricular hypertrophy index, wall thickness index (%WT), and relative wall area index (%WA) of rat pulmonary arterioles. Results Preconditioning with PGE1 increased the protein levels of HIF-1 alpha (HIF-1α) in MSCs, which can reduce MSC apoptosis and increase the protein levels of CXCR4, MSC migration, and vascular endothelial growth factor secretion. Upon injection with PGE1-PCMSCs, the pulmonary artery systolic pressure, mean pulmonary artery pressure, right ventricular hypertrophy index, %WT, and %WA decreased in rats with PAH. PGE1-PCMSCs exhibited better therapeutic effects than non-PCMSCs. Interestingly, lificiguat (YC-1), an inhibitor of the HIF pathway, blocked the effects of PGE1 preconditioning. Conclusions Our findings indicate that PGE1 modulates the properties of MSCs by regulating the HIF pathway, providing insights into the mechanism by which PGE1 preconditioning can be used to improve the therapeutic potential of MSCs in PAH. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-022-03011-x.
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Affiliation(s)
- De-Tian Jiang
- Department of Cardiovascular Surgery, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, 266035, Shandong, China
| | - Lei Tuo
- Department of Cardiovascular Surgery, Weifang Yidu Central Hospital, Qingzhou, Weifang, 262500, Shandong, China
| | - Xiao Bai
- Department of Cardiovascular Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250062, Shandong, China
| | - Wei-Dong Bing
- Department of Cardiovascular Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250062, Shandong, China
| | - Qing-Xi Qu
- Department of Cardiovascular Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250062, Shandong, China
| | - Xin Zhao
- Department of Cardiovascular Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250062, Shandong, China
| | - Guang-Min Song
- Department of Cardiovascular Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250062, Shandong, China
| | - Yan-Wen Bi
- Department of Cardiovascular Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250062, Shandong, China.
| | - Wen-Yu Sun
- Department of Cardiovascular Surgery, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, 266035, Shandong, China.
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5
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Wang N, Chen C, Cheng Y, Fu Y, Zhong Z, Yang Y, Lv L, Chen H, Huang J, Duan Y. Hypoxia drives hematopoiesis with the enhancement of T lineage through eliciting arterial specification of hematopoietic endothelial progenitors from hESC. Stem Cell Res Ther 2022; 13:282. [PMID: 35765115 PMCID: PMC9241298 DOI: 10.1186/s13287-022-02967-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 06/19/2022] [Indexed: 12/03/2022] Open
Abstract
Background Hematopoietic stem cells are able to self-renew and differentiate into all blood cell lineages. Hematopoietic stem cell transplantation is a mainstay of life-saving therapy for hematopoietic malignancies and hypoproliferative disorders. In vitro hematopoietic differentiation of human pluripotent stem cells (hPSCs) is a promising approach for modeling hematopoietic development and cell replacement therapies. Although using hPSCs to derive hematopoietic progenitor cells has achieved some successes in the past, differentiation from hPSCs to produce all hematopoietic cells which can provide robust long-term multilineage engraftment is still very difficult. Here, we reported a novel culture system for hematopoietic differentiation from human embryonic stem cells (hESCs) with optimal cytokines combinations under hypoxia condition. Methods In vitro production of T lineage hematopoietic stem/progenitor cells from hESCs by using hypoxia differentiation system, the effects and the potential mechanism of hypoxia promoting T lineage hematopoiesis were investigated by RT-qPCR validation, cell cycle assay and flow cytometry analysis. Results Using our differentiation system, almost 80% CD45+ cells generated from hESCs were hematopoietic cells and particularly could be further induced into CD3+TCRαβ+ T cells in vitro. We detected more CD34+CD144+ hematopoietic endothelial progenitors (HEPs) induced from hESCs than those in normoxia conditions, and the early HEPs-related gene DLL4 was upregulated by enhancing the hypoxia signaling via potential HIF-1α/NOTCH1/DLL4 axis to enhance arterial feature, thus drove T lineage during the hematopoiesis. Strikingly, hematopoietic cells generated in our system exhibited the potential for all multilineage reconstruction including lymphoid, myeloid and erythroid lineages in vivo by transplantation assay. Conclusion Our results demonstrated that hypoxia plays an important role in T lineage hematopoiesis by promoting the expression of arterial endothelial gene DLL4 and upregulation of NOTCH1 through the activation of the HIF-1α signaling pathway. These results provide a significant approach for in vitro and in vivo production of fully functional hematopoietic stem/progenitor cells from hESCs. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-022-02967-0.
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Affiliation(s)
- Ning Wang
- School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou, 510006, People's Republic of China.,Laboratory of Stem Cells and Translational Medicine, Institutes for Life Sciences and School of Medicine, Higher Education Mega Center, South China University of Technology, No.382 Waihuan East Road, Suite 406, Guangzhou, 510006, People's Republic of China
| | - Chuxin Chen
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, People's Republic of China
| | - Yang Cheng
- Department of Gynaecology and Obstetrics, Guangzhou First People's Hospital, Guangzhou, 510180, People's Republic of China
| | - Yingjie Fu
- Laboratory of Stem Cells and Translational Medicine, Institutes for Life Sciences and School of Medicine, Higher Education Mega Center, South China University of Technology, No.382 Waihuan East Road, Suite 406, Guangzhou, 510006, People's Republic of China
| | - Zhiyong Zhong
- School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou, 510006, People's Republic of China.,Laboratory of Stem Cells and Translational Medicine, Institutes for Life Sciences and School of Medicine, Higher Education Mega Center, South China University of Technology, No.382 Waihuan East Road, Suite 406, Guangzhou, 510006, People's Republic of China
| | - Yu Yang
- Department of Gynaecology and Obstetrics, Guangzhou First People's Hospital, Guangzhou, 510180, People's Republic of China
| | - Ling Lv
- Research Unit of Liver Transplantation and Transplant Immunology, Chinese Academy of Medical Sciences, Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, 300 Guang Zhou Road, Nanjing, 210029, People's Republic of China.
| | - Honglin Chen
- Laboratory of Stem Cells and Translational Medicine, Institutes for Life Sciences and School of Medicine, Higher Education Mega Center, South China University of Technology, No.382 Waihuan East Road, Suite 406, Guangzhou, 510006, People's Republic of China. .,National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, People's Republic of China. .,Guangdong Provincial Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou, 510006, People's Republic of China. .,Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, People's Republic of China.
| | - Jian Huang
- Coriell Institute for Medical Research, Camden, NJ, USA. .,Cooper Medical School of Rowan University, Camden, NJ, USA.
| | - Yuyou Duan
- Laboratory of Stem Cells and Translational Medicine, Institutes for Life Sciences and School of Medicine, Higher Education Mega Center, South China University of Technology, No.382 Waihuan East Road, Suite 406, Guangzhou, 510006, People's Republic of China. .,National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, People's Republic of China. .,Guangdong Provincial Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou, 510006, People's Republic of China. .,Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, People's Republic of China.
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6
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Liu L, Li H, Patterson AM, Plett PA, Sampson CH, Mohammad KS, Capitano ML, Singh P, Yao C, Orschell CM, Pelus LM. Upregulation of SIRT1 Contributes to dmPGE2-dependent Radioprotection of Hematopoietic Stem Cells. Stem Cell Rev Rep 2022; 18:1478-1494. [PMID: 35318613 DOI: 10.1007/s12015-022-10368-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2022] [Indexed: 11/29/2022]
Abstract
Exposure to potentially lethal high-dose ionizing radiation results in bone marrow suppression, known as the hematopoietic acute radiation syndrome (H-ARS), which can lead to pancytopenia and possible death from hemorrhage or infection. Medical countermeasures to protect from or mitigate the effects of radiation exposure are an ongoing medical need. We recently reported that 16,16 dimethyl prostaglandin E2 (dmPGE2) given prior to lethal irradiation protects hematopoietic stem (HSCs) and progenitor (HPCs) cells and accelerates hematopoietic recovery by attenuating mitochondrial compromise, DNA damage, apoptosis, and senescence. However, molecular mechanisms responsible for the radioprotective effects of dmPGE2 on HSCs are not well understood. In this report, we identify a crucial role for the NAD+-dependent histone deacetylase Sirtuin 1 (Sirt1) downstream of PKA and CREB in dmPGE2-dependent radioprotection of hematopoietic cells. We found that dmPGE2 increases Sirt1 expression and activity in hematopoietic cells including HSCs and pharmacologic and genetic suppression of Sirt1 attenuates the radioprotective effects of dmPGE2 on HSC and HPC function and its ability to reduce DNA damage, apoptosis, and senescence and stimulate autophagy in HSCs. DmPGE2-mediated enhancement of Sirt1 activity in irradiated mice is accompanied by epigenetic downregulation of p53 activation and inhibition of H3K9 and H4K16 acetylation at the promoters of the genes involved in DNA repair, apoptosis, and autophagy, including p53, Ku70, Ku80, LC3b, ATG7, and NF-κB. These studies expand our understanding of intracellular events that are induced by IR but prevented/attenuated by dmPGE2 and suggest that modulation of Sirt1 activity may facilitate hematopoietic recovery following hematopoietic stress. Graphical Abstract.
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Affiliation(s)
- Liqiong Liu
- Department of Microbiology & Immunology, Indiana University School of Medicine, 950 West Walnut Street, Indianapolis, IN, 46202, USA
| | - Hongge Li
- Department of Microbiology & Immunology, Indiana University School of Medicine, 950 West Walnut Street, Indianapolis, IN, 46202, USA
| | - Andrea M Patterson
- Department of Microbiology & Immunology, Indiana University School of Medicine, 950 West Walnut Street, Indianapolis, IN, 46202, USA.,Department of Medicine/Hematology Oncology, Indiana University School of Medicine, 980 West Walnut Street, Indianapolis, IN, 46202, USA
| | - P Artur Plett
- Department of Medicine/Hematology Oncology, Indiana University School of Medicine, 980 West Walnut Street, Indianapolis, IN, 46202, USA
| | - Carol H Sampson
- Department of Medicine/Hematology Oncology, Indiana University School of Medicine, 980 West Walnut Street, Indianapolis, IN, 46202, USA
| | - Khalid S Mohammad
- Department of Medicine/Endocrinology, Indiana University School of Medicine, 980 West Walnut Street, Indianapolis, IN, 46202, USA
| | - Maegan L Capitano
- Department of Microbiology & Immunology, Indiana University School of Medicine, 950 West Walnut Street, Indianapolis, IN, 46202, USA
| | - Pratibha Singh
- Department of Microbiology & Immunology, Indiana University School of Medicine, 950 West Walnut Street, Indianapolis, IN, 46202, USA.,Department of Medicine/Hematology Oncology, Indiana University School of Medicine, 980 West Walnut Street, Indianapolis, IN, 46202, USA
| | - Chonghua Yao
- Shanghai Municipal Hospital of Traditional Chinese Medicine, NO.274, middle Zhijiang Road, Shanghai, China
| | - Christie M Orschell
- Department of Medicine/Hematology Oncology, Indiana University School of Medicine, 980 West Walnut Street, Indianapolis, IN, 46202, USA.
| | - Louis M Pelus
- Department of Microbiology & Immunology, Indiana University School of Medicine, 950 West Walnut Street, Indianapolis, IN, 46202, USA. .,Department of Medicine/Hematology Oncology, Indiana University School of Medicine, 980 West Walnut Street, Indianapolis, IN, 46202, USA.
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7
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Preciado S, Sirerol-Piquer MS, Muntión S, Osugui L, Martí-Chillón GJ, Navarro-Bailón A, Sepúlveda P, Sánchez-Guijo F. Co-administration of human MSC overexpressing HIF-1α increases human CD34 + cell engraftment in vivo. Stem Cell Res Ther 2021; 12:601. [PMID: 34876206 PMCID: PMC8650423 DOI: 10.1186/s13287-021-02669-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 11/20/2021] [Indexed: 12/28/2022] Open
Abstract
Background Poor graft function or graft failure after allogeneic stem cell transplantation is an unmet medical need, in which mesenchymal stromal cells (MSC) constitute an attractive potential therapeutic approach. Hypoxia-inducible factor-1α (HIF-1α) overexpression in MSC (HIF-MSC) potentiates the angiogenic and immunomodulatory properties of these cells, so we hypothesized that co-transplantation of MSC-HIF with CD34+ human cord blood cells would also enhance hematopoietic stem cell engraftment and function both in vitro and in vivo.
Methods Human MSC were obtained from dental pulp. Lentiviral overexpression of HIF-1α was performed transducing cells with pWPI-green fluorescent protein (GFP) (MSC WT) or pWPI-HIF-1α-GFP (HIF-MSC) expression vectors. Human cord blood CD34+ cells were co-cultured with MSC WT or HIF-MSC (4:1) for 72 h. Then, viability (Annexin V and 7-AAD), cell cycle, ROS expression and immunophenotyping of key molecules involved in engraftment (CXCR4, CD34, ITGA4, c-KIT) were evaluated by flow cytometry in CD34+ cells. In addition, CD34+ cells clonal expansion was analyzed by clonogenic assays. Finally, in vivo engraftment was measured by flow cytometry 4-weeks after CD34+ cell transplantation with or without intrabone MSC WT or HIF-MSC in NOD/SCID mice. Results We did not observe significant differences in viability, cell cycle and ROS expression between CD34+ cells co-cultured with MSC WT or HIF-MSC. Nevertheless, a significant increase in CD34, CXCR4 and ITGA4 expression (p = 0.009; p = 0.001; p = 0.013, respectively) was observed in CD34+ cells co-cultured with HIF-MSC compared to MSC WT. In addition, CD34+ cells cultured with HIF-MSC displayed a higher CFU-GM clonogenic potential than those cultured with MSC WT (p = 0.048). We also observed a significant increase in CD34+ cells engraftment ability when they were co-transplanted with HIF-MSC compared to CD34+ co-transplanted with MSC WT (p = 0.016) or alone (p = 0.015) in both the injected and contralateral femurs (p = 0.024, p = 0.008 respectively). Conclusions Co-transplantation of human CD34+ cells with HIF-MSC enhances cell engraftment in vivo. This is probably due to the ability of HIF-MSC to increase clonogenic capacity of hematopoietic cells and to induce the expression of adhesion molecules involved in graft survival in the hematopoietic niche. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-021-02669-z.
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Affiliation(s)
- Silvia Preciado
- Cell Therapy Unit, Hematology Department, University Hospital of Salamanca, IBSAL, University of Salamanca, Paseo de San Vicente 58-182, 37007, Salamanca, Spain.,RETIC TerCel, ISCIII, Madrid, Spain.,Centro en Red de Medicina Regenerativa y Terapia Celular de Castilla y León, Salamanca, Spain
| | - Mª Salomé Sirerol-Piquer
- Departamento de Biología Celular, Biología Funcional y Antropología Física, University of Valencia, Burjassot, Spain.,Instituto de Biotecnología y Biomedicina (BioTecMed), University of Valencia, Burjassot, Spain.,RETIC TerCel, ISCIII, Madrid, Spain
| | - Sandra Muntión
- Cell Therapy Unit, Hematology Department, University Hospital of Salamanca, IBSAL, University of Salamanca, Paseo de San Vicente 58-182, 37007, Salamanca, Spain.,RETIC TerCel, ISCIII, Madrid, Spain.,Centro en Red de Medicina Regenerativa y Terapia Celular de Castilla y León, Salamanca, Spain
| | - Lika Osugui
- Cell Therapy Unit, Hematology Department, University Hospital of Salamanca, IBSAL, University of Salamanca, Paseo de San Vicente 58-182, 37007, Salamanca, Spain.,RETIC TerCel, ISCIII, Madrid, Spain.,Centro en Red de Medicina Regenerativa y Terapia Celular de Castilla y León, Salamanca, Spain
| | - Gerardo J Martí-Chillón
- Cell Therapy Unit, Hematology Department, University Hospital of Salamanca, IBSAL, University of Salamanca, Paseo de San Vicente 58-182, 37007, Salamanca, Spain.,RETIC TerCel, ISCIII, Madrid, Spain.,Centro en Red de Medicina Regenerativa y Terapia Celular de Castilla y León, Salamanca, Spain
| | - Almudena Navarro-Bailón
- Cell Therapy Unit, Hematology Department, University Hospital of Salamanca, IBSAL, University of Salamanca, Paseo de San Vicente 58-182, 37007, Salamanca, Spain.,RETIC TerCel, ISCIII, Madrid, Spain.,Centro en Red de Medicina Regenerativa y Terapia Celular de Castilla y León, Salamanca, Spain
| | - Pilar Sepúlveda
- Regenerative Medicine and Heart Transplantation Unit, Instituto de Investigación Sanitaria La Fe, Valencia, Spain.,RETIC TerCel, ISCIII, Madrid, Spain
| | - Fermín Sánchez-Guijo
- Cell Therapy Unit, Hematology Department, University Hospital of Salamanca, IBSAL, University of Salamanca, Paseo de San Vicente 58-182, 37007, Salamanca, Spain. .,RETIC TerCel, ISCIII, Madrid, Spain. .,Centro en Red de Medicina Regenerativa y Terapia Celular de Castilla y León, Salamanca, Spain.
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Araki D, Fu JF, Huntsman H, Cordes S, Seifuddin F, Alvarado LJ, Cheruku PS, Cash A, Traba J, Li Y, Pirooznia M, Smith RH, Larochelle A. NOTCH-mediated ex vivo expansion of human hematopoietic stem and progenitor cells by culture under hypoxia. Stem Cell Reports 2021; 16:2336-2350. [PMID: 34450041 PMCID: PMC8452537 DOI: 10.1016/j.stemcr.2021.08.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 07/30/2021] [Accepted: 08/01/2021] [Indexed: 02/07/2023] Open
Abstract
Activation of NOTCH signaling in human hematopoietic stem/progenitor cells (HSPCs) by treatment with an engineered Delta-like ligand (DELTA1ext-IgG [DXI]) has enabled ex vivo expansion of short-term HSPCs, but the effect on long-term repopulating hematopoietic stem cells (LTR-HSCs) remains uncertain. Here, we demonstrate that ex vivo culture of human adult HSPCs with DXI under low oxygen tension limits ER stress in LTR-HSCs and lineage-committed progenitors compared with normoxic cultures. A distinct HSC gene signature was upregulated in cells cultured with DXI in hypoxia and, after 21 days of culture, the frequency of LTR-HSCs increased 4.9-fold relative to uncultured cells and 4.2-fold compared with the normoxia + DXI group. NOTCH and hypoxia pathways intersected to maintain undifferentiated phenotypes in cultured HSPCs. Our work underscores the importance of mitigating ER stress perturbations to preserve functional LTR-HSCs in extended cultures and offers a clinically feasible platform for the expansion of human HSPCs.
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Affiliation(s)
- Daisuke Araki
- Cellular and Molecular Therapeutics Branch, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), 9000 Rockville Pike, Bethesda, MD 20892, USA
| | - Jian Fei Fu
- Cellular and Molecular Therapeutics Branch, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), 9000 Rockville Pike, Bethesda, MD 20892, USA
| | - Heather Huntsman
- Cellular and Molecular Therapeutics Branch, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), 9000 Rockville Pike, Bethesda, MD 20892, USA
| | - Stefan Cordes
- Translational Stem Cell Biology Branch, NHLBI, NIH, Bethesda, MD 20892, USA
| | - Fayaz Seifuddin
- Bioinformatics and Computational Biology Laboratory, NHLBI, NIH, Bethesda, MD 20892, USA
| | - Luigi J Alvarado
- Cellular and Molecular Therapeutics Branch, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), 9000 Rockville Pike, Bethesda, MD 20892, USA
| | - Patali S Cheruku
- Cellular and Molecular Therapeutics Branch, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), 9000 Rockville Pike, Bethesda, MD 20892, USA
| | - Ayla Cash
- Cellular and Molecular Therapeutics Branch, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), 9000 Rockville Pike, Bethesda, MD 20892, USA
| | - Javier Traba
- Cardiovascular Branch, NHLBI, NIH, Bethesda, MD 20892, USA
| | - Yuesheng Li
- DNA Sequencing and Genomics Core Facility, NHLBI, NIH, Bethesda, MD 20892, USA
| | - Mehdi Pirooznia
- Bioinformatics and Computational Biology Laboratory, NHLBI, NIH, Bethesda, MD 20892, USA
| | - Richard H Smith
- Cellular and Molecular Therapeutics Branch, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), 9000 Rockville Pike, Bethesda, MD 20892, USA
| | - Andre Larochelle
- Cellular and Molecular Therapeutics Branch, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), 9000 Rockville Pike, Bethesda, MD 20892, USA.
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9
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Mesnieres M, Böhm AM, Peredo N, Trompet D, Valle-Tenney R, Bajaj M, Corthout N, Nefyodova E, Cardoen R, Baatsen P, Munck S, Nagy A, Haigh JJ, Khurana S, Verfaillie CM, Maes C. Fetal hematopoietic stem cell homing is controlled by VEGF regulating the integrity and oxidative status of the stromal-vascular bone marrow niches. Cell Rep 2021; 36:109618. [PMID: 34433017 PMCID: PMC8411121 DOI: 10.1016/j.celrep.2021.109618] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 05/28/2021] [Accepted: 08/05/2021] [Indexed: 12/22/2022] Open
Abstract
Hematopoietic stem and progenitor cell (HSPC) engraftment after transplantation during anticancer treatment depends on support from the recipient bone marrow (BM) microenvironment. Here, by studying physiological homing of fetal HSPCs, we show the critical requirement of balanced local crosstalk within the skeletal niche for successful HSPC settlement in BM. Transgene-induced overproduction of vascular endothelial growth factor (VEGF) by osteoprogenitor cells elicits stromal and endothelial hyperactivation, profoundly impacting the stromal-vessel interface and vascular architecture. Concomitantly, HSPC homing and survival are drastically impaired. Transcriptome profiling, flow cytometry, and high-resolution imaging indicate alterations in perivascular and endothelial cell characteristics, vascular function and cellular metabolism, associated with increased oxidative stress within the VEGF-enriched BM environment. Thus, developmental HSPC homing to bone is controlled by local stromal-vascular integrity and the oxidative-metabolic status of the recipient milieu. Interestingly, irradiation of adult mice also induces stromal VEGF expression and similar osteo-angiogenic niche changes, underscoring that our findings may contribute targets for improving stem cell therapies. Establishment of BM hematopoiesis is coupled to development of the skeletal niches Primary HSPC seeding of bone depends on balanced molecular crosstalk in the niche Stromal VEGF triggers EC activation and controls stromal-vascular niche integrity Excessive skeletal VEGF deranges cell metabolism and induces oxidative stress in BM
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Affiliation(s)
- Marion Mesnieres
- Laboratory of Skeletal Cell Biology and Physiology (SCEBP), Skeletal Biology and Engineering Research Center (SBE), Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium
| | - Anna-Marei Böhm
- Laboratory of Skeletal Cell Biology and Physiology (SCEBP), Skeletal Biology and Engineering Research Center (SBE), Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium
| | - Nicolas Peredo
- Laboratory of Skeletal Cell Biology and Physiology (SCEBP), Skeletal Biology and Engineering Research Center (SBE), Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium
| | - Dana Trompet
- Laboratory of Skeletal Cell Biology and Physiology (SCEBP), Skeletal Biology and Engineering Research Center (SBE), Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium
| | - Roger Valle-Tenney
- Laboratory of Skeletal Cell Biology and Physiology (SCEBP), Skeletal Biology and Engineering Research Center (SBE), Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium
| | - Manmohan Bajaj
- Stem Cell and Developmental Biology Unit, Stem Cell Institute Leuven, Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium
| | - Nikky Corthout
- VIB-KU Leuven Center for Brain & Disease Research, VIB BioImaging Center, KU Leuven, 3000 Leuven, Belgium; Research Group Molecular Neurobiology, Department of Neurosciences, KU Leuven, 3000 Leuven, Belgium
| | - Elena Nefyodova
- Laboratory of Skeletal Cell Biology and Physiology (SCEBP), Skeletal Biology and Engineering Research Center (SBE), Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium
| | - Ruben Cardoen
- Laboratory of Skeletal Cell Biology and Physiology (SCEBP), Skeletal Biology and Engineering Research Center (SBE), Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium
| | - Pieter Baatsen
- VIB-KU Leuven Center for Brain & Disease Research, VIB BioImaging Center, KU Leuven, 3000 Leuven, Belgium; Research Group Molecular Neurobiology, Department of Neurosciences, KU Leuven, 3000 Leuven, Belgium
| | - Sebastian Munck
- VIB-KU Leuven Center for Brain & Disease Research, VIB BioImaging Center, KU Leuven, 3000 Leuven, Belgium; Research Group Molecular Neurobiology, Department of Neurosciences, KU Leuven, 3000 Leuven, Belgium
| | - Andras Nagy
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada; Department of Obstetrics and Gynecology, Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Jody J Haigh
- Department of Pharmacology and Therapeutics, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada; Research Institute in Oncology and Hematology, Cancer Care Manitoba, Winnipeg, MB, Canada
| | - Satish Khurana
- Stem Cell and Developmental Biology Unit, Stem Cell Institute Leuven, Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium; School of Biology, Indian Institute of Science Education and Research (IISER), Thiruvananthapuram, 695551 Kerala, India
| | - Catherine M Verfaillie
- Stem Cell and Developmental Biology Unit, Stem Cell Institute Leuven, Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium
| | - Christa Maes
- Laboratory of Skeletal Cell Biology and Physiology (SCEBP), Skeletal Biology and Engineering Research Center (SBE), Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium.
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10
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Prostaglandin E 2 Enhances Aged Hematopoietic Stem Cell Function. Stem Cell Rev Rep 2021; 17:1840-1854. [PMID: 33974233 DOI: 10.1007/s12015-021-10177-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/28/2021] [Indexed: 10/21/2022]
Abstract
Aging of hematopoiesis is associated with increased frequency and clonality of hematopoietic stem cells (HSCs), along with functional compromise and myeloid bias, with donor age being a significant variable in survival after HSC transplantation. No clinical methods currently exist to enhance aged HSC function, and little is known regarding how aging affects molecular responses of HSCs to biological stimuli. Exposure of HSCs from young fish, mice, nonhuman primates, and humans to 16,16-dimethyl prostaglandin E2 (dmPGE2) enhances transplantation, but the effect of dmPGE2 on aged HSCs is unknown. Here we show that ex vivo pulse of bone marrow cells from young adult (3 mo) and aged (25 mo) mice with dmPGE2 prior to serial competitive transplantation significantly enhanced long-term repopulation from aged grafts in primary and secondary transplantation (27 % increase in chimerism) to a similar degree as young grafts (21 % increase in chimerism; both p < 0.05). RNA sequencing of phenotypically-isolated HSCs indicated that the molecular responses to dmPGE2 are similar in young and old, including CREB1 activation and increased cell survival and homeostasis. Common genes within these pathways identified likely key mediators of HSC enhancement by dmPGE2 and age-related signaling differences. HSC expression of the PGE2 receptor EP4, implicated in HSC function, increased with age in both mRNA and surface protein. This work suggests that aging does not alter the major dmPGE2 response pathways in HSCs which mediate enhancement of both young and old HSC function, with significant implications for expanding the therapeutic potential of elderly HSC transplantation.
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11
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Mohrin M. Mito-managing ROS & redox to reboot the immune system: Tapping mitochondria & redox management to extend the reach of hematopoietic stem cell transplantation. Free Radic Biol Med 2021; 165:38-53. [PMID: 33486089 DOI: 10.1016/j.freeradbiomed.2021.01.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/11/2021] [Accepted: 01/13/2021] [Indexed: 12/31/2022]
Abstract
Hematopoietic stem cells (HSCs) are responsible for life-long production of blood and immune cells. HSC transplantation (HSCT) is the original cell therapy which can cure hematological disorders but also has the potential to treat other diseases if technical and safety barriers are overcome. To maintain homeostatic hematopoiesis or to restore hematopoiesis during transplantation HSCs must perform both self-renewal, replication of themselves, and differentiation, generation of mature blood and immune cells. These are just two of the cell fate choices HSCs have; the transitional phases where HSCs undergo these cell fate decisions are regulated by reduction-oxidation (redox) signaling, mitochondrial activity, and cellular metabolism. Recent studies revealed that mitochondria, a key source of redox signaling components, are central to HSC cell fate decisions. Here we highlight how mitochondria serve as hubs in HSCs to manage redox signaling and metabolism and thus guide HSC fate choices. We focus on how mitochondrial activity is modulated by their clearance, biogenesis, dynamics, distribution, and quality control in HSCs. We also note how modulating mitochondria in HSCs can help overcome technical barriers limiting further use of HSCT.
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Affiliation(s)
- Mary Mohrin
- Immunology Discovery, Genentech, Inc. 1 DNA Way, South San Francisco, CA, 94080, USA.
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12
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Abstract
PURPOSE OF REVIEW Hematopoietic stem cells (HSCs) are defined by their ability to self-renew and differentiate to replenish all blood lineages throughout adult life. Under homeostasis, the majority of HSCs are quiescent, and few stem cells are cycling to sustain hematopoiesis. However, HSCs can be induced to proliferate and differentiate in response to stress signals produced during infection, inflammation, chemotherapy, radiation, bone marrow transplantation, and aging. Recent evidence suggests that acute and chronic stress impact the number and function of HSCs including their ability to repopulate and produce mature cells. This review will focus on how chronic stress affects HSC biology and methods to mitigate HSC loss during chronic hematopoietic stress. RECENT FINDINGS Quiescent HSCs exit dormancy, divide, and differentiate to maintain steady-state hematopoiesis. Under conditions of acute stress including infection or blood loss some HSCs are pushed into division by cytokines and proinflammatory stimuli to differentiate and provide needed myeloid and erythroid cells to protect and reconstitute the host; after which, hematopoiesis returns to steady-state with minimal loss of HSC function. However, under conditions of chronic stress including serial bone marrow transplantation (BMT), chronic inflammation, and genotoxic stress (chemotherapy) and aging, HSCs are continuously induced to proliferate and undergo accelerated exhaustion. Recent evidence demonstrates that ablation of inhibitor of DNA binding 1 (Id1) gene can protect HSCs from exhaustion during chronic proliferative stress by promoting HSC quiescence. SUMMARY Increasing our understanding of the molecular processes that protect HSCs from chronic proliferative stress could lead to therapeutic opportunities to prevent accelerated HSC exhaustion during physiological stress, genotoxic stress, BMT, and aging.
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13
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Progress towards improving homing and engraftment of hematopoietic stem cells for clinical transplantation. Curr Opin Hematol 2020; 26:266-272. [PMID: 31045644 DOI: 10.1097/moh.0000000000000510] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE OF REVIEW Hematopoietic cell transplantation (HCT) is a life-saving treatment for a variety of hematological and nonhematological disorders. Successful clinical outcomes after transplantation rely on adequate hematopoietic stem cell (HSC) numbers, and the homing and subsequent short-term and long-term engraftment of these cells in the bone marrow. Enhancing the homing capability of HSCs has the potential for high impact on improving HCT and patient survival. RECENT FINDINGS There are a number of ways to enhance HSC engraftment. Neutralizing negative epigenetic regulation by histone deacetylase 5 (HDAC5) increases surface CXCR4 expression and promotes human HSC homing and engraftment in immune-deficient NSG (NOD.Cg-Prkdc IL2rgt/Sz) mice. Short-term treatment of cells with glucocorticoids, pharmacological stabilization of hypoxia-inducible factor (HIF)-1α, increasing membrane lipid raft aggregation, and inhibition of dipeptidyl peptidase 4 (DPP4) facilitates HSC homing and engraftment. Added to these procedures, modulating the mitochondria permeability transition pore (MPTP) to mitigate ambient air-induced extra physiological oxygen stress/shock (EPHOSS) by hypoxic harvest and processing, or using cyclosporine A during air collection increases functional HSC numbers and improves HSC engraftment. SUMMARY A better understanding of the regulation of human HSC homing mediated by various signaling pathways will facilitate development of more efficient means to enhance HCT efficacy.
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Yang J, Zhao S, Ma D. Biological Characteristics and Regulation of Early Megakaryocytopoiesis. Stem Cell Rev Rep 2020; 15:652-663. [PMID: 31230184 DOI: 10.1007/s12015-019-09905-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
For decades, megakaryocytopoiesis is believed to occur following a classical binary hierarchical developmental model. This model is based on an analysis of predefined flow-sorted cell populations by using cell surface markers. However, this classical model has been challenged by increasing evidences obtained with new techniques which integrating flow cytometric, transcriptomic and functional data at single-cell level and with lineage tracing technique. These recent advances in megakaryocytopoiesis proposed that commitment of haematopoietic stem cells (HSCs) towards megakaryocytic lineage occurs in much earlier stage than that postulated in the classical model. There may exist multipotent but megakaryocyte (MK)/platelet-biased HSCs within HSC compartment and even HSCs can directly differentiate into MKs in steady state or in response to stress. In this review, we focus on recent findings about differentiation from commitment of HSCs to MK and its regulation, and discuss future directions in this research field.
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Affiliation(s)
- Jingang Yang
- Department of Experimental Medicine, General Hospital of Northern Theatre Command, 83 Wenhua Road, Shenhe District, Shenyang, Liaoning, People's Republic of China
| | - Song Zhao
- Department of Experimental Medicine, General Hospital of Northern Theatre Command, 83 Wenhua Road, Shenhe District, Shenyang, Liaoning, People's Republic of China
| | - Dongchu Ma
- Department of Experimental Medicine, General Hospital of Northern Theatre Command, 83 Wenhua Road, Shenhe District, Shenyang, Liaoning, People's Republic of China.
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15
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Huang X, Guo B, Capitano M, Broxmeyer HE. Past, present, and future efforts to enhance the efficacy of cord blood hematopoietic cell transplantation. F1000Res 2019; 8. [PMID: 31723413 PMCID: PMC6823900 DOI: 10.12688/f1000research.20002.1] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/23/2019] [Indexed: 12/22/2022] Open
Abstract
Cord blood (CB) has been used as a viable source of hematopoietic stem cells (HSCs) and hematopoietic progenitor cells (HPCs) in over 35,000 clinical hematopoietic cell transplantation (HCT) efforts to treat the same variety of malignant and non-malignant disorders treated by bone marrow (BM) and mobilized peripheral blood (mPB) using HLA-matched or partially HLA-disparate related or unrelated donor cells for adult and children recipients. This review documents the beginning of this clinical effort that started in the 1980’s, the pros and cons of CB HCT compared to BM and mPB HCT, and recent experimental and clinical efforts to enhance the efficacy of CB HCT. These efforts include means for increasing HSC numbers in single CB collections, expanding functional HSCs
ex vivo, and improving CB HSC homing and engraftment, all with the goal of clinical translation. Concluding remarks highlight the need for phase I/II clinical trials to test the experimental procedures that are described, either alone or in combination.
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Affiliation(s)
- Xinxin Huang
- Xuhui Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Bin Guo
- Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Maegan Capitano
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, 46202-5181, USA
| | - Hal E Broxmeyer
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, 46202-5181, USA
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Golay H, Jurkovic Mlakar S, Mlakar V, Nava T, Ansari M. The Biological and Clinical Relevance of G Protein-Coupled Receptors to the Outcomes of Hematopoietic Stem Cell Transplantation: A Systematized Review. Int J Mol Sci 2019; 20:E3889. [PMID: 31404983 PMCID: PMC6719093 DOI: 10.3390/ijms20163889] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/06/2019] [Accepted: 08/07/2019] [Indexed: 01/04/2023] Open
Abstract
Hematopoietic stem cell transplantation (HSCT) remains the only curative treatment for several malignant and non-malignant diseases at the cost of serious treatment-related toxicities (TRTs). Recent research on extending the benefits of HSCT to more patients and indications has focused on limiting TRTs and improving immunological effects following proper mobilization and engraftment. Increasing numbers of studies report associations between HSCT outcomes and the expression or the manipulation of G protein-coupled receptors (GPCRs). This large family of cell surface receptors is involved in various human diseases. With ever-better knowledge of their crystal structures and signaling dynamics, GPCRs are already the targets for one third of the current therapeutic arsenal. The present paper assesses the current status of animal and human research on GPCRs in the context of selected HSCT outcomes via a systematized survey and analysis of the literature.
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Affiliation(s)
- Hadrien Golay
- Platform of Pediatric Onco-Hematology research (CANSEARCH Laboratory), Department of Pediatrics, Gynecology, and Obstetrics, University of Geneva, Bâtiment La Tulipe, Avenue de la Roseraie 64, 1205 Geneva, Switzerland
| | - Simona Jurkovic Mlakar
- Platform of Pediatric Onco-Hematology research (CANSEARCH Laboratory), Department of Pediatrics, Gynecology, and Obstetrics, University of Geneva, Bâtiment La Tulipe, Avenue de la Roseraie 64, 1205 Geneva, Switzerland
| | - Vid Mlakar
- Platform of Pediatric Onco-Hematology research (CANSEARCH Laboratory), Department of Pediatrics, Gynecology, and Obstetrics, University of Geneva, Bâtiment La Tulipe, Avenue de la Roseraie 64, 1205 Geneva, Switzerland
| | - Tiago Nava
- Platform of Pediatric Onco-Hematology research (CANSEARCH Laboratory), Department of Pediatrics, Gynecology, and Obstetrics, University of Geneva, Bâtiment La Tulipe, Avenue de la Roseraie 64, 1205 Geneva, Switzerland
- Department of Women-Children-Adolescents, Division of General Pediatrics, Pediatric Onco-Hematology Unit, Geneva University Hospitals (HUG), Avenue de la Roseraie 64, 1205 Geneva, Switzerland
| | - Marc Ansari
- Platform of Pediatric Onco-Hematology research (CANSEARCH Laboratory), Department of Pediatrics, Gynecology, and Obstetrics, University of Geneva, Bâtiment La Tulipe, Avenue de la Roseraie 64, 1205 Geneva, Switzerland.
- Department of Women-Children-Adolescents, Division of General Pediatrics, Pediatric Onco-Hematology Unit, Geneva University Hospitals (HUG), Avenue de la Roseraie 64, 1205 Geneva, Switzerland.
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17
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Halvarsson C, Rörby E, Eliasson P, Lang S, Soneji S, Jönsson JI. Putative Role of Nuclear Factor-Kappa B But Not Hypoxia-Inducible Factor-1α in Hypoxia-Dependent Regulation of Oxidative Stress in Hematopoietic Stem and Progenitor Cells. Antioxid Redox Signal 2019; 31:211-226. [PMID: 30827134 PMCID: PMC6590716 DOI: 10.1089/ars.2018.7551] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 03/01/2019] [Accepted: 03/01/2019] [Indexed: 12/14/2022]
Abstract
Aims: Adaptation to low oxygen of hematopoietic stem cells (HSCs) in the bone marrow has been demonstrated to depend on the activation of hypoxia-inducible factor (HIF)-1α as well as the limited production of reactive oxygen species (ROS). In this study, we aimed at determining whether HIF-1α is involved in protecting HSCs from ROS. Results: Oxidative stress was induced by DL-buthionine-(S,R)-sulfoximine (BSO)-treatment, which increases the mitochondrial ROS level. Hypoxia rescued Lineage-Sca-1+c-kit+ (LSK) cells from BSO-induced apoptosis, whereas cells succumbed to apoptosis in normoxia. Apoptosis in normoxia was inhibited with the antioxidant N-acetyl-L-cysteine or by overexpression of anti-apoptotic BCL-2. Moreover, stabilized expression of oxygen-insensitive HIFs could not protect LSK cells from oxidative stress-induced apoptosis at normoxia, neither could short hairpin RNA to Hif-1α inhibit the protective effects by hypoxia in LSK cells. Likewise, BSO treatment of LSK cells from Hif-1α knockout mice did not suppress the effects seen in hypoxia. Microarray analysis identified the nuclear factor-kappa B (NF-κB) pathway as a pathway induced by hypoxia. By using NF-κB lentiviral construct and DNA-binding assay, we found increased NF-κB activity in cells cultured in hypoxia compared with normoxia. Using an inhibitor against NF-κB activation, we could confirm the involvement of NF-κB signaling as BSO-mediated cell death was significantly increased in hypoxia after adding the inhibitor. Innovation: HIF-1α is not involved in protecting HSCs and progenitors to elevated levels of ROS on glutathione depletion during hypoxic conditions. Conclusion: The study proposes a putative role of NF-κB signaling as a hypoxia-induced regulator in early hematopoietic cells.
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Affiliation(s)
- Camilla Halvarsson
- Experimental Hematology Unit, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Emma Rörby
- Experimental Hematology Unit, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Pernilla Eliasson
- Experimental Hematology Unit, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Stefan Lang
- Lund Stem Cell Center, Lund University, Lund, Sweden
| | - Shamit Soneji
- Lund Stem Cell Center, Lund University, Lund, Sweden
| | - Jan-Ingvar Jönsson
- Experimental Hematology Unit, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
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18
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Hidaka K, Mikuni-Takagaki Y, Wada-Takahashi S, Saita M, Kawamata R, Sato T, Kawata A, Miyamoto C, Maehata Y, Watabe H, Tani-Ishii N, Hamada N, Takahashi SS, Deguchi S, Takeuchi R. Low-Intensity Pulsed Ultrasound Prevents Development of Bisphosphonate-Related Osteonecrosis of the Jaw-Like Pathophysiology in a Rat Model. ULTRASOUND IN MEDICINE & BIOLOGY 2019; 45:1721-1732. [PMID: 31006496 DOI: 10.1016/j.ultrasmedbio.2019.02.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 12/21/2018] [Accepted: 02/15/2019] [Indexed: 06/09/2023]
Abstract
We developed a rat model of bisphosphonate-related osteonecrosis of the jaw (BRONJ) by removing a maxillary molar tooth (M1) from ovariectomized rats after treatment with alendronate. To mimic periodontitis, some of the rats were administered Porphyromonas gingivalis (p. gingivalis) at the M1 site every 2 to 3 d for 2 wk. Rats pretreated with alendronate plus p. gingivalis showed delayed healing of socket epithelia, periosteal reaction of alveolar bone formation and lower bone mineral density in the alveolus above adjacent M2 teeth. These abnormalities were prevented by tooth socket exposure to 20 min/d low-intensity pulsed ultrasound (LIPUS), which restored diminished expression of RANKL, Bcl-2, IL-6, Hsp70, NF-κB and TNF-α messenger ribonucleic acids in remote bone marrow, suggesting LIPUS prevented development of BRONJ-like pathophysiology in rat by inducing systemic responses for regeneration, in addition to accelerating local healing. Non-invasive treatment by LIPUS, as well as low-level laser therapy, may be useful for medication-related osteonecrosis of the jaw patients.
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Affiliation(s)
- Kouki Hidaka
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan; Department of Oral Interdisciplinary Medicine, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Yuko Mikuni-Takagaki
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan.
| | - Satoko Wada-Takahashi
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Makiko Saita
- Department of Oral Interdisciplinary Medicine, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Ryota Kawamata
- Department of Dentomaxillofacial Diagnosis and Treatment, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Takenori Sato
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Akira Kawata
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Chihiro Miyamoto
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Yojiro Maehata
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Hirotaka Watabe
- Department of Oral Interdisciplinary Medicine, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Nobuyuki Tani-Ishii
- Department of Oral Interdisciplinary Medicine, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Nobushiro Hamada
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Shun-Suke Takahashi
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Shinji Deguchi
- Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Ryohei Takeuchi
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan; Joint Surgery Center, Kawasaki Saiwai Hospital, Kawasaki, Japan
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19
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Sinha KM, Tseng C, Guo P, Lu A, Pan H, Gao X, Andrews R, Eltzschig H, Huard J. Hypoxia-inducible factor 1α (HIF-1α) is a major determinant in the enhanced function of muscle-derived progenitors from MRL/MpJ mice. FASEB J 2019; 33:8321-8334. [PMID: 30970214 DOI: 10.1096/fj.201801794r] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Although the mouse strain Murphy Roths Large (MRL/MpJ) possesses high regenerative potential, the mechanism of tissue regeneration, including skeletal muscle, in MRL/MpJ mice after injury is still unclear. Our previous studies have shown that muscle-derived stem/progenitor cell (MDSPC) function is significantly enhanced in MRL/MpJ mice when compared with MDSPCs isolated from age-matched wild-type (WT) mice. Using mass spectrometry-based proteomic analysis, we identified increased expression of hypoxia-inducible factor (HIF) 1α target genes (expression of glycolytic factors and antioxidants) in sera from MRL/MpJ mice compared with WT mice. Therefore, we hypothesized that HIF-1α promotes the high muscle healing capacity of MRL/MpJ mice by increasing the potency of MDSPCs. We demonstrated that treating MRL/MpJ MDSPCs with dimethyloxalylglycine and CoCl2 increased the expression of HIF-1α and target genes, including angiogenic and cell survival genes. We also observed that HIF-1α activated the expression of paired box (Pax)7 through direct interaction with the Pax7 promoter. Furthermore, we also observed a higher myogenic potential of MDSPCs derived from prolyl hydroxylase (Phd) 3-knockout (Phd3-/-) mice, which displayed higher stability of HIF-1α. Taken together, our findings suggest that HIF-1α is a major determinant in the increased MDSPC function of MRL/MpJ mice through enhancement of cell survival, proliferation, and myogenic differentiation.-Sinha, K. M., Tseng, C., Guo, P., Lu, A., Pan, H., Gao, X., Andrews, R., Eltzschig, H., Huard, J. Hypoxia-inducible factor 1α (HIF-1α) is a major determinant in the enhanced function of muscle-derived progenitors from MRL/MpJ mice.
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Affiliation(s)
- Krishna M Sinha
- Department of Orthopedic Surgery, McGovern Medical School, University of Texas Health Science Center-Houston, Houston, Texas, USA
| | - Chieh Tseng
- Department of Orthopedic Surgery, McGovern Medical School, University of Texas Health Science Center-Houston, Houston, Texas, USA
| | - Ping Guo
- Department of Orthopedic Surgery, McGovern Medical School, University of Texas Health Science Center-Houston, Houston, Texas, USA
| | - Aiping Lu
- Department of Orthopedic Surgery, McGovern Medical School, University of Texas Health Science Center-Houston, Houston, Texas, USA
| | - Haiying Pan
- Department of Orthopedic Surgery, McGovern Medical School, University of Texas Health Science Center-Houston, Houston, Texas, USA
| | - Xueqin Gao
- Department of Orthopedic Surgery, McGovern Medical School, University of Texas Health Science Center-Houston, Houston, Texas, USA
| | - Reid Andrews
- Department of Orthopedic Surgery, McGovern Medical School, University of Texas Health Science Center-Houston, Houston, Texas, USA
| | - Holger Eltzschig
- Department of Anesthesiology, McGovern Medical School, University of Texas Health Science Center-Houston, Houston, Texas, USA
| | - Johnny Huard
- Department of Orthopedic Surgery, McGovern Medical School, University of Texas Health Science Center-Houston, Houston, Texas, USA.,Steadman Philippon Research Institute, Vail, Colorado, USA
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20
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Carter BZ, Mak PY, Wang X, Tao W, Ruvolo V, Mak D, Mu H, Burks JK, Andreeff M. An ARC-Regulated IL1β/Cox-2/PGE2/β-Catenin/ARC Circuit Controls Leukemia-Microenvironment Interactions and Confers Drug Resistance in AML. Cancer Res 2019; 79:1165-1177. [PMID: 30674535 DOI: 10.1158/0008-5472.can-18-0921] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 09/17/2018] [Accepted: 01/16/2019] [Indexed: 12/29/2022]
Abstract
The apoptosis repressor with caspase recruitment domain (ARC) protein is a strong independent adverse prognostic marker in acute myeloid leukemia (AML). We previously reported that ARC regulates leukemia-microenvironment interactions through the NFκB/IL1β signaling network. Malignant cells have been reported to release IL1β, which induces PGE2 synthesis in mesenchymal stromal cells (MSC), in turn activating β-catenin signaling and inducing the cancer stem cell phenotype. Although Cox-2 and its enzymatic product PGE2 play major roles in inflammation and cancer, the regulation and role of PGE2 in AML are largely unknown. Here, we report that AML-MSC cocultures greatly increase Cox-2 expression in MSC and PGE2 production in an ARC/IL1β-dependent manner. PGE2 induced the expression of β-catenin, which regulated ARC and augmented chemoresistance in AML cells; inhibition of β-catenin decreased ARC and sensitized AML cells to chemotherapy. NOD/SCIDIL2RγNull-3/GM/SF mice transplanted with ARC-knockdown AML cells had significantly lower leukemia burden, lower serum levels of IL1β/PGE2, and lower tissue human ARC and β-catenin levels, prolonged survival, and increased sensitivity to chemotherapy than controls. Collectively, we present a new mechanism of action of antiapoptotic ARC by which ARC regulates PGE2 production in the tumor microenvironment and microenvironment-mediated chemoresistance in AML.Significance: The antiapoptotic protein ARC promotes AML aggressiveness by enabling detrimental cross-talk with bone marrow mesenchymal stromal cells.
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Affiliation(s)
- Bing Z Carter
- Section of Molecular Hematology and Therapy, Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas.
| | - Po Yee Mak
- Section of Molecular Hematology and Therapy, Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Xiangmeng Wang
- Section of Molecular Hematology and Therapy, Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Wenjing Tao
- Section of Molecular Hematology and Therapy, Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Vivian Ruvolo
- Section of Molecular Hematology and Therapy, Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Duncan Mak
- Section of Molecular Hematology and Therapy, Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Hong Mu
- Section of Molecular Hematology and Therapy, Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jared K Burks
- Section of Molecular Hematology and Therapy, Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Michael Andreeff
- Section of Molecular Hematology and Therapy, Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas.
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21
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Elkhenany H, AlOkda A, El-Badawy A, El-Badri N. Tissue regeneration: Impact of sleep on stem cell regenerative capacity. Life Sci 2018; 214:51-61. [PMID: 30393021 DOI: 10.1016/j.lfs.2018.10.057] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Revised: 10/23/2018] [Accepted: 10/25/2018] [Indexed: 12/31/2022]
Abstract
The circadian rhythm orchestrates many cellular functions, such as cell division, cell migration, metabolism and numerous intracellular biological processes. The physiological changes during sleep are believed to promote a suitable microenvironment for stem cells to proliferate, migrate and differentiate. These effects are mediated either directly by circadian clock genes or indirectly via hormones and cytokines. Hormones, such as melatonin and cortisol, are secreted in response to neural optic signals and act in harmony to regulate many biological functions during sleep. Herein, we correlate the effects of the main circadian genes on the expression of certain stem cell genes responsible for the regeneration of different tissues, including bone, cartilage, skin, and intestine. We also review the effects of different hormones and cytokines on stem cell activation or suppression and their relationship to the day/night cycle. The correlation of circadian rhythm with tissue regeneration could have implications in understanding the biology of sleep and tissue regeneration and in enhancing the efficacy and timing of surgical procedures.
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Affiliation(s)
- Hoda Elkhenany
- Centre of Excellence for Stem Cells and Regenerative Medicine (CESC), Zewail City of Science and Technology, 12588, Egypt; Department of Surgery, Faculty of Veterinary Medicine, Alexandria University, 22785, Egypt
| | - Abdelrahman AlOkda
- Centre of Excellence for Stem Cells and Regenerative Medicine (CESC), Zewail City of Science and Technology, 12588, Egypt
| | - Ahmed El-Badawy
- Centre of Excellence for Stem Cells and Regenerative Medicine (CESC), Zewail City of Science and Technology, 12588, Egypt
| | - Nagwa El-Badri
- Centre of Excellence for Stem Cells and Regenerative Medicine (CESC), Zewail City of Science and Technology, 12588, Egypt.
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22
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Jalnapurkar S, Moirangthem RD, Singh S, Limaye L, Kale V. Microvesicles Secreted by Nitric Oxide-Primed Mesenchymal Stromal Cells Boost the Engraftment Potential of Hematopoietic Stem Cells. Stem Cells 2018; 37:128-138. [PMID: 30290030 DOI: 10.1002/stem.2912] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 08/04/2018] [Accepted: 08/18/2018] [Indexed: 12/23/2022]
Abstract
Patients with leukemia, lymphoma, severe aplastic anemia, etc. are frequently the targets of bone marrow transplantation, the success of which critically depends on efficient engraftment by transplanted hematopoietic cells (HSCs). Ex vivo manipulation of HSCs to improve their engraftment ability becomes necessary when the number or quality of donor HSCs is a limiting factor. Due to their hematopoiesis-supportive ability, bone marrow-derived mesenchymal stromal cells (MSCs) have been traditionally used as feeder layers for ex vivo expansion of HSCs. MSCs form a special HSC-niche in vivo, implying that signaling mechanisms operative in them would affect HSC fate. We have recently demonstrated that AKT signaling prevailing in the MSCs affect the HSC functionality. Here we show that MSCs primed with nitric oxide donor, Sodium nitroprusside (SNP), significantly boost the engraftment potential of the HSCs co-cultured with them via intercellular transfer of microvesicles (MVs) harboring mRNAs encoding HSC-supportive genes. Our data suggest that these MVs could be used as HSC-priming agents to improve transplantation efficacy. Since both, nitric oxide donors and MSCs are already in clinical use; their application in clinical settings may be relatively straight forward. This approach could also be applied in regenerative medicine protocols. Stem Cells 2019;37:128-138.
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Affiliation(s)
| | | | - Shweta Singh
- Stem Cell Lab, National Centre for Cell Science, Pune, India
| | - Lalita Limaye
- Stem Cell Lab, National Centre for Cell Science, Pune, India
| | - Vaijayanti Kale
- Stem Cell Lab, National Centre for Cell Science, Pune, India
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23
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He XT, Wang J, Li X, Yin Y, Sun HH, Chen FM. The Critical Role of Cell Homing in Cytotherapeutics and Regenerative Medicine. ADVANCED THERAPEUTICS 2018. [DOI: 10.1002/adtp.201800098] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Xiao-Tao He
- State Key Laboratory of Military Stomatology; School of Stomatology; Fourth Military Medical University; 710032 Xi'an P. R. China
- National Clinical Research Center for Oral Diseases; Department of Periodontology; School of Stomatology; Fourth Military Medical University; 710032 Xi'an P. R. China
- Shaanxi Engineering Research Center for Dental Materials, and Advanced Manufacture; Biomaterials Unit; School of Stomatology; Fourth Military Medical University; 710032 Xi'an P. R. China
| | - Jia Wang
- State Key Laboratory of Military Stomatology; School of Stomatology; Fourth Military Medical University; 710032 Xi'an P. R. China
- Shaanxi Engineering Research Center for Dental Materials, and Advanced Manufacture; Biomaterials Unit; School of Stomatology; Fourth Military Medical University; 710032 Xi'an P. R. China
| | - Xuan Li
- State Key Laboratory of Military Stomatology; School of Stomatology; Fourth Military Medical University; 710032 Xi'an P. R. China
- National Clinical Research Center for Oral Diseases; Department of Periodontology; School of Stomatology; Fourth Military Medical University; 710032 Xi'an P. R. China
- Shaanxi Engineering Research Center for Dental Materials, and Advanced Manufacture; Biomaterials Unit; School of Stomatology; Fourth Military Medical University; 710032 Xi'an P. R. China
| | - Yuan Yin
- State Key Laboratory of Military Stomatology; School of Stomatology; Fourth Military Medical University; 710032 Xi'an P. R. China
- Shaanxi Engineering Research Center for Dental Materials, and Advanced Manufacture; Biomaterials Unit; School of Stomatology; Fourth Military Medical University; 710032 Xi'an P. R. China
| | - Hai-Hua Sun
- National Clinical Research Center for Oral Diseases; Department of Periodontology; School of Stomatology; Fourth Military Medical University; 710032 Xi'an P. R. China
| | - Fa-Ming Chen
- State Key Laboratory of Military Stomatology; School of Stomatology; Fourth Military Medical University; 710032 Xi'an P. R. China
- National Clinical Research Center for Oral Diseases; Department of Periodontology; School of Stomatology; Fourth Military Medical University; 710032 Xi'an P. R. China
- Shaanxi Engineering Research Center for Dental Materials, and Advanced Manufacture; Biomaterials Unit; School of Stomatology; Fourth Military Medical University; 710032 Xi'an P. R. China
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24
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Huang X, Trinh T, Aljoufi A, Broxmeyer HE. Hypoxia Signaling Pathway in Stem Cell Regulation: Good and Evil. CURRENT STEM CELL REPORTS 2018; 4:149-157. [PMID: 31275803 DOI: 10.1007/s40778-018-0127-7] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Purpose of Review This review summarizes the role of hypoxia and hypoxia-inducible factors (HIFs) in the regulation of stem cell biology, specifically focusing on maintenance, differentiation, and stress responses in the context of several stem cell systems. Stem cells for different lineages/tissues reside in distinct niches, and are exposed to diverse oxygen concentrations. Recent studies have revealed the importance of the hypoxia signaling pathway for stem cell functions. Recent Findings Hypoxia and HIFs contribute to maintenance of embryonic stem cells, generation of induced pluripotent stem cells, functionality of hematopoietic stem cells, and survival of leukemia stem cells. Harvest and collection of mouse bone marrow and human cord blood cells in ambient air results in fewer hematopoietic stem cells recovered due to the phenomenon of Extra PHysiologic Oxygen Shock/Stress (EPHOSS). Summary Oxygen is an important factor in the stem cell microenvironment. Hypoxia signaling and HIFs play important roles in modeling cellular metabolism in both stem cells and niches to regulate stem cell biology, and represent an additional dimension that allows stem cells to maintain an undifferentiated status and multilineage differentiation potential.
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Affiliation(s)
- Xinxin Huang
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Thao Trinh
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Arafat Aljoufi
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Hal E Broxmeyer
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
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25
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Ku J, El-Hashash A. Stem Cell Roles and Applications in Genetic Neurodegenerative Diseases. STEM CELLS IN CLINICAL APPLICATIONS 2018. [DOI: 10.1007/978-3-319-98065-2_9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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26
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Pan T, Wang Q, Zhu L, Qi J, You T, Han Y. Downregulation of hypoxia-inducible factor-1α contributes to impaired megakaryopoiesis in immune thrombocytopenia. Thromb Haemost 2017; 117:1875-1886. [DOI: 10.1160/th17-03-0155] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 06/23/2017] [Indexed: 01/15/2023]
Abstract
SummaryImpaired megakaryocyte maturation and exaggerated platelet destruction play a pivotal role in the pathogenesis of immune thrombocytopenia (ITP). Previous studies have shown that HIF-1α promotes the homing and engraftment of haematopoietic stem cells (HSCs), thereby stimulating HSC differentiation. However, whether HIF-1α plays a role in megakaryocytic maturation and platelet destruction in ITP remains elusive. Using enzyme-linked immunosorbent assays (ELISAs), we demonstrated that there were lower HIF-1α levels in the bone marrow (BM) of ITP patients than in that of healthy donors and patients with chemotherapy-related thrombocytopenia. Subjects with lower megakaryocyte (<100/slide) and platelet (<30 × 109/L) counts exhibited significantly decreased BM HIF-1α levels, compared to those with higher megakaryocyte (≥100/slide) and platelet (≥30 × 109/L) counts. To test whether HIF-1α regulates megakaryopoiesis and platelet production, megakaryocytes derived from mouse BM cells were treated with an HIF-1α activator (IOX-2; 50 µM) or inhibitor (PX-478; 50 µM). PX-478 significantly decreased HIF-1α expression, cell size, and the populations of CD41-positive and high-ploidy cells. Importantly, to evaluate the role of HIF-1α as a potential therapeutic target in ITP, mouse BM cells were incubated with plasma from ITP patients in the presence or absence of IOX-2. IOX-2 significantly attenuated the ITP plasma-induced decrease in cell size as well as the proportions of CD41-positive and high-ploidy cells. In addition, IOX-2 increased the number of megakaryocytes from mouse BM cells treated with ITP plasma. Our findings indicate that decreased HIF-1α may contribute to impaired megakaryopoiesis in ITP, and HIF-1α may provide a potential therapy for ITP patients.Supplementary Material to this article is available online at www.thrombosis-online.com.
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27
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Yang F, Luo WJ, Sun W, Wang Y, Wang JL, Yang F, Li CL, Wei N, Wang XL, Guan SM, Chen J. SDF1-CXCR4 Signaling Maintains Central Post-Stroke Pain through Mediation of Glial-Neuronal Interactions. Front Mol Neurosci 2017; 10:226. [PMID: 28785202 PMCID: PMC5519565 DOI: 10.3389/fnmol.2017.00226] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 07/03/2017] [Indexed: 12/29/2022] Open
Abstract
Central post-stroke pain (CPSP) is an intractable central neuropathic pain that has been poorly studied mechanistically. Here we showed that stromal cell-derived factor 1 (SDF1 or CXCL12), a member of the CXC chemokine family, and its receptor CXCR4 played a key role in the development and maintenance of thalamic hemorrhagic CPSP through hypoxia inducible factor 1α (HIF-1α) mediated microglial-astrocytic-neuronal interactions. First, both intra-thalamic collagenase (ITC) and SDF1 injections could induce CPSP that was blockable and reversible by intra-thalamic administration of both AMD3100 (a selective CXCR4 antagonist) and inhibitors of microglial or astrocytic activation. Second, long-term increased-expression of SDF1 and CXCR4 that was accompanied by activations of both microglia and astrocytes following ITC could be blocked by both AMD-3100 and YC-1, a selective inhibitor of HIF-1α. AMD-3100 could also inhibit release of proinflammatory mediators (TNFα, IL1β and IL-6). Increased-expression of HIF-1α, SDF1, CXCR4, Iba1 and GFAP proteins could be induced by both ITC and intra-thalamic CoCl2, an inducer of HIF-1α that was blockable by both HIF-1α inhibition and CXCR4 antagonism. Finally, inhibition of HIF-1α was only effective in prevention, but not in treatment of ITC-induced CPSP. Taken together, the present study demonstrated that in the initial process of thalamic hemorrhagic state HIF-1α up-regulated SDF1-CXCR4 signaling, while in the late process SDF1-CXCR4 signaling-mediated positive feedback plays more important role in glial-glial and glial-neuronal interactions and might be a novel promising molecular target for treatment of CPSP in clinic.
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Affiliation(s)
- Fei Yang
- Institute for Biomedical Sciences of Pain, Tangdu Hospital, The Fourth Military Medical UniversityXi'an, China
| | - Wen-Jun Luo
- Institute for Biomedical Sciences of Pain, Tangdu Hospital, The Fourth Military Medical UniversityXi'an, China
| | - Wei Sun
- Institute for Biomedical Sciences of Pain, Tangdu Hospital, The Fourth Military Medical UniversityXi'an, China.,Key Laboratory of Brain Stress and Behavior, People's Liberation Army (PLA)Xi'an, China
| | - Yan Wang
- Institute for Biomedical Sciences of Pain, Tangdu Hospital, The Fourth Military Medical UniversityXi'an, China.,Key Laboratory of Brain Stress and Behavior, People's Liberation Army (PLA)Xi'an, China
| | - Jiang-Lin Wang
- Institute for Biomedical Sciences of Pain, Tangdu Hospital, The Fourth Military Medical UniversityXi'an, China
| | - Fan Yang
- Institute for Biomedical Sciences of Pain, Tangdu Hospital, The Fourth Military Medical UniversityXi'an, China.,Key Laboratory of Brain Stress and Behavior, People's Liberation Army (PLA)Xi'an, China
| | - Chun-Li Li
- Institute for Biomedical Sciences of Pain, Tangdu Hospital, The Fourth Military Medical UniversityXi'an, China.,Key Laboratory of Brain Stress and Behavior, People's Liberation Army (PLA)Xi'an, China
| | - Na Wei
- Institute for Biomedical Sciences of Pain, Tangdu Hospital, The Fourth Military Medical UniversityXi'an, China.,Key Laboratory of Brain Stress and Behavior, People's Liberation Army (PLA)Xi'an, China
| | - Xiao-Liang Wang
- Institute for Biomedical Sciences of Pain, Tangdu Hospital, The Fourth Military Medical UniversityXi'an, China.,Key Laboratory of Brain Stress and Behavior, People's Liberation Army (PLA)Xi'an, China
| | - Su-Min Guan
- School of Stomatology, The Fourth Military Medical UniversityXi'an, China
| | - Jun Chen
- Institute for Biomedical Sciences of Pain, Tangdu Hospital, The Fourth Military Medical UniversityXi'an, China.,Key Laboratory of Brain Stress and Behavior, People's Liberation Army (PLA)Xi'an, China.,Beijing Institute for Brain DisordersBeijing, China
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28
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Zasłona Z, Pålsson-McDermott EM, Menon D, Haneklaus M, Flis E, Prendeville H, Corcoran SE, Peters-Golden M, O'Neill LAJ. The Induction of Pro-IL-1β by Lipopolysaccharide Requires Endogenous Prostaglandin E 2 Production. THE JOURNAL OF IMMUNOLOGY 2017; 198:3558-3564. [PMID: 28298525 DOI: 10.4049/jimmunol.1602072] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Accepted: 02/15/2017] [Indexed: 02/06/2023]
Abstract
PGE2 has been shown to increase the transcription of pro-IL-1β. However, recently it has been demonstrated that PGE2 can block the maturation of IL-1β by inhibiting the NLRP3 inflammasome in macrophages. These apparently conflicting results have led us to reexamine the effect of PGE2 on IL-1β production. We have found that in murine bone marrow-derived macrophages, PGE2 via the cAMP/protein kinase A pathway is potently inducing IL-1β transcription, as well as boosting the ability of LPS to induce IL-1β mRNA and pro-IL-1β while inhibiting the production of TNF-α. This results in an increase in mature IL-1β production in macrophages treated with ATP. We also examined the effect of endogenously produced PGE2 on IL-1β production. By blocking PGE2 production with indomethacin, we made a striking finding that endogenous PGE2 is essential for LPS-induced pro-IL-1β production, suggesting a positive feedback loop. The effect of endogenous PGE2 was mediated by EP2 receptor. In primary human monocytes, where LPS alone is sufficient to induce mature IL-1β, PGE2 boosted LPS-induced IL-1β production. PGE2 did not inhibit ATP-induced mature IL-1β production in monocytes. Because PGE2 mediates the pyrogenic effect of IL-1β, these effects might be especially relevant for the role of monocytes in the induction of fever. A positive feedback loop from IL-1β and back to PGE2, which itself is induced by IL-1β, is likely to be operating. Furthermore, fever might therefore occur in the absence of a septic shock response because of the inhibiting effect of PGE2 on TNF-α production.
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Affiliation(s)
- Zbigniew Zasłona
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland; and
| | - Eva M Pålsson-McDermott
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland; and
| | - Deepthi Menon
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland; and
| | - Moritz Haneklaus
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland; and
| | - Ewelina Flis
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland; and
| | - Hannah Prendeville
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland; and
| | - Sarah E Corcoran
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland; and
| | - Marc Peters-Golden
- Division of Internal Medicine, University of Michigan, Ann Arbor, MI 48109
| | - Luke A J O'Neill
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland; and
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29
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Jalnapurkar S, Singh S, Devi MR, Limaye L, Kale V. Nitric oxide has contrasting age-dependent effects on the functionality of murine hematopoietic stem cells. Stem Cell Res Ther 2016; 7:171. [PMID: 27876094 PMCID: PMC5120451 DOI: 10.1186/s13287-016-0433-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 10/26/2016] [Accepted: 10/29/2016] [Indexed: 01/06/2023] Open
Abstract
Background The success of hematopoietic stem cell (HSC) transplantation is dependent on the quality of the donor HSCs. Some sources of HSCs display reduced engraftment efficiency either because of inadequate number (e.g., fetal liver and cord blood), or age-related dysfunction (e.g. in older individuals). Therefore, use of pharmacological compounds to improve functionality of HSCs is a forefront research area in hematology. Methods Lineage negative (Lin−) cells isolated from murine bone marrow or sort-purified Lin−Sca-1+c-Kit+CD34− (LSK-CD34−) were treated with a nitric oxide donor, sodium nitroprusside (SNP). The cells were subjected to various phenotypic and functional assays. Results We found that SNP treatment of Lin− cells leads to an increase in the numbers of LSK-CD34+ cells in them. Using sort-purified LSK CD34− HSCs, we show that this is related to acquisition of CD34 expression by LSK-CD34− cells, rather than proliferation of LSK-CD34+ cells. Most importantly, this upregulated expression of CD34 had age-dependent contrasting effects on HSC functionality. Increased CD34 expression significantly improved the engraftment of juvenile HSCs (6–8 weeks); in sharp contrast, it reduced the engraftment of adult HSCs (10–12 weeks). The molecular mechanism behind this phenomenon involved nitric oxide (NO)-mediated differential induction of various transcription factors involved in commitment with regard to self-renewal in adult and juvenile HSCs, respectively. Preliminary experiments performed on cord blood-derived and mobilized peripheral blood-derived cells revealed that NO exerts age-dependent contrasting effects on human HSCs as well. Conclusions This study demonstrates novel age-dependent contrasting effects of NO on HSC functionality and suggests that HSC age may be an important parameter in screening of various compounds for their use in manipulation of HSCs. Electronic supplementary material The online version of this article (doi:10.1186/s13287-016-0433-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sapana Jalnapurkar
- Stem Cell Lab, National Centre for Cell Science, Ganeshkhind, Pune, 411007, India
| | - Shweta Singh
- Stem Cell Lab, National Centre for Cell Science, Ganeshkhind, Pune, 411007, India
| | | | - Lalita Limaye
- Stem Cell Lab, National Centre for Cell Science, Ganeshkhind, Pune, 411007, India
| | - Vaijayanti Kale
- Stem Cell Lab, National Centre for Cell Science, Ganeshkhind, Pune, 411007, India.
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30
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Berry E, Liu Y, Chen L, Guo AM. Eicosanoids: Emerging contributors in stem cell-mediated wound healing. Prostaglandins Other Lipid Mediat 2016; 132:17-24. [PMID: 27825971 DOI: 10.1016/j.prostaglandins.2016.11.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 09/29/2016] [Accepted: 11/03/2016] [Indexed: 12/16/2022]
Abstract
Eicosanoids are bioactive lipid products primarily derived from the oxidation of arachidonic acid (AA). The individual contributions of eicosanoids and stem cells to wound healing have been of great interest. This review focuses on how stem cells work in concert with eicosanoids to create a beneficial environment in the wound bed and in the promotion of wound healing. Stem cells contribute to wound healing through modulating inflammation, differentiating into skin cells or endothelial cells, and exerting paracrine effects by releasing various potent growth factors. Eicosanoids have been shown to stimulate proliferation, migration, homing, and differentiation of stem cells, all of which contribute to the process of wound healing. Increasing evidence has shown that eicosanoids improve wound healing through increasing stem cell densities, stimulating differentiation, and enhancing the angiogenic properties of stem cells. Chronic wounds have become a major problem in health care. Therefore, research regarding the effects of stem cells and eicosanoids in the promotion wound healing is of great importance.
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Affiliation(s)
- Elizabeth Berry
- Department of Pharmacology, School of Medicine, New York Medical College, Valhalla, NY 10595 United States
| | - Yanzhou Liu
- Department of Pharmacology, School of Medicine, New York Medical College, Valhalla, NY 10595 United States; Department of Pharmacology, School of Medicine, Wuhan University, Wuhan, 430071, People's Republic of China
| | - Li Chen
- State Key Lab of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060, People's Republic of China
| | - Austin M Guo
- Department of Pharmacology, School of Medicine, New York Medical College, Valhalla, NY 10595 United States; Department of Pharmacology, School of Medicine, Wuhan University, Wuhan, 430071, People's Republic of China.
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31
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Dey M, Yu D, Kanojia D, Li G, Sukhanova M, Spencer DA, Pituch KC, Zhang L, Han Y, Ahmed AU, Aboody KS, Lesniak MS, Balyasnikova IV. Intranasal Oncolytic Virotherapy with CXCR4-Enhanced Stem Cells Extends Survival in Mouse Model of Glioma. Stem Cell Reports 2016; 7:471-482. [PMID: 27594591 PMCID: PMC5032402 DOI: 10.1016/j.stemcr.2016.07.024] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 07/28/2016] [Accepted: 07/29/2016] [Indexed: 02/06/2023] Open
Abstract
The challenges to effective drug delivery to brain tumors are twofold: (1) there is a lack of non-invasive methods of local delivery and (2) the blood-brain barrier limits systemic delivery. Intranasal delivery of therapeutics to the brain overcomes both challenges. In mouse model of malignant glioma, we observed that a small fraction of intranasally delivered neural stem cells (NSCs) can migrate to the brain tumor site. Here, we demonstrate that hypoxic preconditioning or overexpression of CXCR4 significantly enhances the tumor-targeting ability of NSCs, but without altering their phenotype only in genetically modified NSCs. Modified NSCs deliver oncolytic virus to glioma more efficiently and extend survival of experimental animals in the context of radiotherapy. Our findings indicate that intranasal delivery of stem cell-based therapeutics could be optimized for future clinical applications, and allow for safe and repeated administration of biological therapies to brain tumors and other CNS disorders. Intranasal delivery of NSCs is a promising platform for glioma therapy Hypoxia or CXCR4 overexpression enhances NSC migration to glioma Oncolytic viruses loaded in CXCR4-enhanced NSCs improve animal survival Non-invasive intranasal NSC-based therapies warrant clinical translation
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Affiliation(s)
- Mahua Dey
- The Brain Tumor Center, The University of Chicago, Chicago, IL 60637, USA
| | - Dou Yu
- The Brain Tumor Center, The University of Chicago, Chicago, IL 60637, USA; Department of Neurological Surgery, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Deepak Kanojia
- The Brain Tumor Center, The University of Chicago, Chicago, IL 60637, USA; Department of Neurological Surgery, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Gina Li
- The Brain Tumor Center, The University of Chicago, Chicago, IL 60637, USA
| | - Madina Sukhanova
- Department of Medicine, The University of Chicago, Chicago, IL 60637, USA
| | - Drew A Spencer
- The Brain Tumor Center, The University of Chicago, Chicago, IL 60637, USA; Department of Neurological Surgery, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Katatzyna C Pituch
- The Brain Tumor Center, The University of Chicago, Chicago, IL 60637, USA; Department of Neurological Surgery, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Lingjiao Zhang
- The Brain Tumor Center, The University of Chicago, Chicago, IL 60637, USA
| | - Yu Han
- The Brain Tumor Center, The University of Chicago, Chicago, IL 60637, USA; Department of Neurological Surgery, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Atique U Ahmed
- The Brain Tumor Center, The University of Chicago, Chicago, IL 60637, USA; Department of Neurological Surgery, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Karen S Aboody
- Division of Neurosurgery, Department of Neurosciences, Beckman Research Institute of the City of Hope, Duarte, CA 91010, USA
| | - Maciej S Lesniak
- The Brain Tumor Center, The University of Chicago, Chicago, IL 60637, USA; Department of Neurological Surgery, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Irina V Balyasnikova
- The Brain Tumor Center, The University of Chicago, Chicago, IL 60637, USA; Department of Neurological Surgery, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA.
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Futrega K, Lott WB, Doran MR. Direct bone marrow HSC transplantation enhances local engraftment at the expense of systemic engraftment in NSG mice. Sci Rep 2016; 6:23886. [PMID: 27065210 PMCID: PMC4827391 DOI: 10.1038/srep23886] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 03/15/2016] [Indexed: 12/11/2022] Open
Abstract
Direct bone marrow (BM) injection has been proposed as a strategy to bypass homing inefficiencies associated with intravenous (IV) hematopoietic stem cell (HSC) transplantation. Despite physical delivery into the BM cavity, many donor cells are rapidly redistributed by vascular perfusion, perhaps compromising efficacy. Anchoring donor cells to 3-dimensional (3D) multicellular spheroids, formed from mesenchymal stem/stromal cells (MSC) might improve direct BM transplantation. To test this hypothesis, relevant combinations of human umbilical cord blood-derived CD34(+) cells and BM-derived MSC were transplanted into NOD/SCID gamma (NSG) mice using either IV or intrafemoral (IF) routes. IF transplantation resulted in higher human CD45(+) and CD34(+) cell engraftment within injected femurs relative to distal femurs regardless of cell combination, but did not improve overall CD45(+) engraftment at 8 weeks. Analysis within individual mice revealed that despite engraftment reaching near saturation within the injected femur, engraftment at distal hematopoietic sites including peripheral blood, spleen and non-injected femur, could be poor. Our data suggest that the retention of human HSC within the BM following direct BM injection enhances local chimerism at the expense of systemic chimerism in this xenogeneic model.
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Affiliation(s)
- Kathryn Futrega
- Queensland University of Technology (QUT) at the Translational Research Institute (TRI), 37 Kent Street, Brisbane, Queensland, Australia 4102
| | - William B Lott
- Queensland University of Technology (QUT) at the Translational Research Institute (TRI), 37 Kent Street, Brisbane, Queensland, Australia 4102
| | - Michael R Doran
- Queensland University of Technology (QUT) at the Translational Research Institute (TRI), 37 Kent Street, Brisbane, Queensland, Australia 4102.,Mater Medical Research - University of Queensland at the Translational Research Institute (TRI), 37 Kent Street, Brisbane, Queensland, Australia 4102
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Kazemi Z, Bergmayr C, Prchal-Murphy M, Javaheri T, Themanns M, Pham HTT, Strohmaier W, Sexl V, Freissmuth M, Zebedin-Brandl E. Repurposing Treprostinil for Enhancing Hematopoietic Progenitor Cell Transplantation. Mol Pharmacol 2016; 89:630-44. [PMID: 26989084 PMCID: PMC4885501 DOI: 10.1124/mol.116.103267] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 03/14/2016] [Indexed: 12/23/2022] Open
Abstract
Activation of Gs-coupled receptors enhances engraftment of hematopoietic stem and progenitor cells (HSPCs). We tested the hypothesis that treprostinil, a prostacyclin analog approved for the treatment of pulmonary hypertension, can be repurposed to improve hematopoietic stem cell transplantation. Murine and human HSPCs were isolated from bone marrow and umbilical cord blood, respectively. Prostanoid receptor agonists and the combination thereof with forskolin were tested for their capacity to stimulate [3H]cAMP accumulation in HSPCs. Three independent approaches were employed to verify the ability of agonist-activated HSPCs to reconstitute the bone marrow in lethally irradiated recipient mice. The underlying mechanism was explored in cellular migration assays and by blocking C-X-C motif chemokine receptor 4 (CXCR4). Among several prostanoid agonists tested in combination with forskolin, treprostinil was most efficacious in raising intracellular cAMP levels in murine and human HPSCs. Injection of murine and human HSPCs, which had been pretreated with treprostinil and forskolin, enhanced survival of lethally irradiated recipient mice. Survival was further improved if recipient mice were subcutaneously administered treprostinil (0.15 mg kg−1 8 h−1) for 10 days. This regimen also reduced the number of HSPCs required to rescue lethally irradiated mice. Enhanced survival of recipient mice was causally related to treprostinil-enhanced CXCR4-dependent migration of HSPCs. Treprostinil stimulates the engraftment of human and murine hematopoietic stem cells without impairing their capacity for self-renewal. The investigated dose range corresponds to the dose approved for human use. Hence, these findings may be readily translated into a clinical application.
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Affiliation(s)
- Zahra Kazemi
- Institute of Pharmacology, Centre of Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria (Z.K., C.B., M.T., M.F., E.Z.-B.); Institute of Pharmacology and Toxicology, University of Veterinary Medicine, Vienna, Austria (M.P.-M., V.S.); Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria (T.J., H.T.T.P.); SciPharm SàRL, L-2540 Luxembourg (W.S.)
| | - Christian Bergmayr
- Institute of Pharmacology, Centre of Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria (Z.K., C.B., M.T., M.F., E.Z.-B.); Institute of Pharmacology and Toxicology, University of Veterinary Medicine, Vienna, Austria (M.P.-M., V.S.); Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria (T.J., H.T.T.P.); SciPharm SàRL, L-2540 Luxembourg (W.S.)
| | - Michaela Prchal-Murphy
- Institute of Pharmacology, Centre of Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria (Z.K., C.B., M.T., M.F., E.Z.-B.); Institute of Pharmacology and Toxicology, University of Veterinary Medicine, Vienna, Austria (M.P.-M., V.S.); Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria (T.J., H.T.T.P.); SciPharm SàRL, L-2540 Luxembourg (W.S.)
| | - Tahereh Javaheri
- Institute of Pharmacology, Centre of Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria (Z.K., C.B., M.T., M.F., E.Z.-B.); Institute of Pharmacology and Toxicology, University of Veterinary Medicine, Vienna, Austria (M.P.-M., V.S.); Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria (T.J., H.T.T.P.); SciPharm SàRL, L-2540 Luxembourg (W.S.)
| | - Madeleine Themanns
- Institute of Pharmacology, Centre of Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria (Z.K., C.B., M.T., M.F., E.Z.-B.); Institute of Pharmacology and Toxicology, University of Veterinary Medicine, Vienna, Austria (M.P.-M., V.S.); Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria (T.J., H.T.T.P.); SciPharm SàRL, L-2540 Luxembourg (W.S.)
| | - Ha T T Pham
- Institute of Pharmacology, Centre of Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria (Z.K., C.B., M.T., M.F., E.Z.-B.); Institute of Pharmacology and Toxicology, University of Veterinary Medicine, Vienna, Austria (M.P.-M., V.S.); Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria (T.J., H.T.T.P.); SciPharm SàRL, L-2540 Luxembourg (W.S.)
| | - Wolfgang Strohmaier
- Institute of Pharmacology, Centre of Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria (Z.K., C.B., M.T., M.F., E.Z.-B.); Institute of Pharmacology and Toxicology, University of Veterinary Medicine, Vienna, Austria (M.P.-M., V.S.); Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria (T.J., H.T.T.P.); SciPharm SàRL, L-2540 Luxembourg (W.S.)
| | - Veronika Sexl
- Institute of Pharmacology, Centre of Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria (Z.K., C.B., M.T., M.F., E.Z.-B.); Institute of Pharmacology and Toxicology, University of Veterinary Medicine, Vienna, Austria (M.P.-M., V.S.); Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria (T.J., H.T.T.P.); SciPharm SàRL, L-2540 Luxembourg (W.S.)
| | - Michael Freissmuth
- Institute of Pharmacology, Centre of Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria (Z.K., C.B., M.T., M.F., E.Z.-B.); Institute of Pharmacology and Toxicology, University of Veterinary Medicine, Vienna, Austria (M.P.-M., V.S.); Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria (T.J., H.T.T.P.); SciPharm SàRL, L-2540 Luxembourg (W.S.)
| | - Eva Zebedin-Brandl
- Institute of Pharmacology, Centre of Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria (Z.K., C.B., M.T., M.F., E.Z.-B.); Institute of Pharmacology and Toxicology, University of Veterinary Medicine, Vienna, Austria (M.P.-M., V.S.); Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria (T.J., H.T.T.P.); SciPharm SàRL, L-2540 Luxembourg (W.S.)
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Gu Q, He Y, Ji J, Yao Y, Shen W, Luo J, Zhu W, Cao H, Geng Y, Xu J, Zhang S, Cao J, Ding WQ. Hypoxia-inducible factor 1α (HIF-1α) and reactive oxygen species (ROS) mediates radiation-induced invasiveness through the SDF-1α/CXCR4 pathway in non-small cell lung carcinoma cells. Oncotarget 2016; 6:10893-907. [PMID: 25843954 PMCID: PMC4484427 DOI: 10.18632/oncotarget.3535] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Accepted: 02/18/2015] [Indexed: 02/07/2023] Open
Abstract
Radiotherapy is an important procedure for the treatment of inoperable non-small cell lung cancer (NSCLC). However, recent evidence has shown that irradiation can promote the invasion and metastasis of several types of cancer, and the underlying mechanisms are not fully understood. This study aimed to investigate the molecular mechanism by which radiation enhances the invasiveness of NSCLC cells. We found that after irradiation, hypoxia-inducible factor 1α (HIF-1α) was increased and translocated into the nucleus, where it bound to the hypoxia response element (HRE) in the CXCR4 promoter and promoted the transcription of CXCR4. Furthermore, reactive oxygen species (ROS) also plays a role in the radiation-induced expression of CXCR4. Our results revealed that 2 Gy X-ray irradiation promoted the metastasis and invasiveness of H1299, A549 and H460 cells, which were significantly enhanced by SDF-1α treatment. Blocking the SDF-1α/CXCR4 interaction could suppress the radiation-induced invasiveness of NSCLC cells. The PI3K/pAkt and MAPK/pERK1/2 pathways were found to be involved in radiation-induced matrix metalloproteinase (MMP) expression. In vivo, irradiation promoted the colonization of H1299 cells in the liver and lung, which was mediated by CXCR4. Altogether, our findings have elucidated the underlying mechanisms of the irradiation-enhanced invasiveness of NSCLC cells.
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Affiliation(s)
- Qing Gu
- School of Radiation Medicine and Protection and Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China.,Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions and School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, China.,Department of Radiation Oncology, Zhejiang Cancer Hospital, Hangzhou, China
| | - Yan He
- School of Radiation Medicine and Protection and Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China.,Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions and School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, China
| | - Jianfeng Ji
- Department of Radiotherapy, Changzhou Tumor Hospital, Soochow University, Changzhou, China
| | - Yifan Yao
- School of Radiation Medicine and Protection and Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China.,Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions and School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, China
| | - Wenhao Shen
- School of Radiation Medicine and Protection and Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China.,Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions and School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, China
| | - Jialin Luo
- Department of Radiation Oncology, Zhejiang Cancer Hospital, Hangzhou, China
| | - Wei Zhu
- School of Radiation Medicine and Protection and Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China.,Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions and School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, China
| | - Han Cao
- School of Radiation Medicine and Protection and Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China.,Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions and School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, China
| | - Yangyang Geng
- School of Radiation Medicine and Protection and Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China.,Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions and School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, China
| | - Jing Xu
- School of Radiation Medicine and Protection and Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China.,Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions and School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, China
| | - Shuyu Zhang
- School of Radiation Medicine and Protection and Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China.,Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions and School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, China
| | - Jianping Cao
- School of Radiation Medicine and Protection and Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China.,Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions and School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, China
| | - Wei-Qun Ding
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma, United States
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Rouault-Pierre K, Hamilton A, Bonnet D. Effect of hypoxia-inducible factors in normal and leukemic stem cell regulation and their potential therapeutic impact. Expert Opin Biol Ther 2016; 16:463-76. [PMID: 26679619 DOI: 10.1517/14712598.2016.1133582] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
INTRODUCTION Hypoxia inducible factors (HIF-1α and HIF-2α) are the main mediators of hypoxic responses that operate in both normal and pathological conditions. Recent evidence indicates that HIF-1α and HIF-2α could have overlapping, unique and even sometimes opposing activities in both normal physiology and disease. Despite an increase in our understanding of the different pathways regulated by HIF-1α and HIF-2α, the role played by each factor in HSC maintenance and leukemogenesis is still controversial. AREAS COVERED This review summarizes our current understanding of HIF-1α and HIF-2α activities and discusses the implications and challenges of using HIF inhibitors therapeutically in blood malignancies. EXPERT OPINION As HIF inhibitors are currently under clinical evaluation in different cancers, including hematological malignancies, a more thorough understanding of the unique roles performed by HIF-1α and HIF-2α in human neoplasia is warranted.
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Affiliation(s)
- Kevin Rouault-Pierre
- a Haematopoietic Stem Cell Laboratory , The Francis Crick Institute , London , UK
| | - Ashley Hamilton
- a Haematopoietic Stem Cell Laboratory , The Francis Crick Institute , London , UK
| | - Dominique Bonnet
- a Haematopoietic Stem Cell Laboratory , The Francis Crick Institute , London , UK
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36
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Venturini L, Stadler M, Manukjan G, Scherr M, Schlegelberger B, Steinemann D, Ganser A. The stem cell zinc finger 1 (SZF1)/ZNF589 protein has a human-specific evolutionary nucleotide DNA change and acts as a regulator of cell viability in the hematopoietic system. Exp Hematol 2015; 44:257-68. [PMID: 26738774 DOI: 10.1016/j.exphem.2015.12.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 12/15/2015] [Accepted: 12/19/2015] [Indexed: 01/19/2023]
Abstract
The stem cell zinc finger 1 (SZF1)/ZNF589 protein belongs to the large family of Krüppel-associated box domain-zinc finger (KRAB-ZNF) transcription factors, which are present only in higher vertebrates and epigenetically repress transcription by recruiting chromatin-modifying complexes to the promoter regions of their respective target genes. Although the distinct biological functions of most KRAB-ZNF proteins remain unknown, recent publications indicate their implication in fundamental processes, such as cell proliferation, apoptosis, differentiation, development, and tumorigenesis. SZF1/ZNF589 was first identified as a gene with SZF1-1 isoform specifically expressed in CD34(+) hematopoietic cells, strongly suggesting a role in epigenetic control of gene expression in hematopoietic stem/progenitor cells (HSPCs). However, the function of SZF1/ZNF589 in hematopoiesis has not yet been elucidated. Our study reveals SZF1/ZNF589 as a gene with a human-specific nucleotide DNA-change, conferring potential species-specific functional properties. Through shRNA-mediated loss-of-function experiments, we found that changes in expression of fundamental apoptosis-controlling genes are induced on SZF1/ZNF589 knockdown, resulting in inhibited growth of hematopoietic cell lines and decreased progenitor potential of primary human bone marrow CD34(+) cells. Moreover, we found that the SZF1/ZNF589 gene is differentially regulated during hypoxia in CD34(+) HSPCs in a cytokine-dependent manner, implicating its possible involvement in the maintenance of the hypoxic physiologic status of hematopoietic stem cells. Our results establish the role of SZF1/ZNF589 as a new functional regulator of the hematopoietic system.
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Affiliation(s)
- Letizia Venturini
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany.
| | - Michael Stadler
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Georgi Manukjan
- Institute of Human Genetics, Hannover Medical School, Hannover, Germany
| | - Michaela Scherr
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | | | - Doris Steinemann
- Institute of Human Genetics, Hannover Medical School, Hannover, Germany
| | - Arnold Ganser
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
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37
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Hypoxia regulates the hematopoietic stem cell niche. Pflugers Arch 2015; 468:13-22. [PMID: 26490456 DOI: 10.1007/s00424-015-1743-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 09/30/2015] [Accepted: 10/02/2015] [Indexed: 12/17/2022]
Abstract
Bone marrow, the site of hematopoiesis throughout adulthood, is a physiologically hypoxic organ. Thus, various biological oxygen sensors and their signaling cascades play a pivotal role in hematopoietic systems in the bone marrow under both physiologic and pathologic conditions. Hypoxia-inducible factors (HIFs) are hypoxic stress sensor proteins that are stabilized under homeostatic or stress-induced hypoxia. In the hypoxic bone marrow, HIFs play crucial roles in hematopoietic stem cells (HSCs) and in the cells of the HSC niche. The signals downstream of the HIFs maintain HSC quiescence, survival, and metabolic homeostasis through both cell-autonomous and non-cell-autonomous mechanisms. Leukemic stem cells (LSCs) hijack these delicate hypoxia-sensing mechanisms to sustain their self-renewal potential, promoting disease progression and drug resistance even under normoxic conditions. This review focuses on HIF-mediated oxygen-sensing mechanisms of adult HSCs and LSCs and their niche cells in the hypoxic bone marrow.
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38
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Land RH, Rayne AK, Vanderbeck AN, Barlowe TS, Manjunath S, Gross M, Eiger S, Klein PS, Cunningham NR, Huang J, Emerson SG, Punt JA. The orphan nuclear receptor NR4A1 specifies a distinct subpopulation of quiescent myeloid-biased long-term HSCs. Stem Cells 2015; 33:278-88. [PMID: 25284014 DOI: 10.1002/stem.1852] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Accepted: 08/29/2014] [Indexed: 01/09/2023]
Abstract
Hematopoiesis is maintained throughout life by self-renewing hematopoietic stem cells (HSCs) that differentiate to produce both myeloid and lymphoid cells. The NR4A family of orphan nuclear receptors, which regulates cell fate in many tissues, appears to play a key role in HSC proliferation and differentiation. Using a NR4A1(GFP) BAC transgenic reporter mouse we have investigated NR4A1 expression and its regulation in early hematopoiesis. We show that NR4A1 is most highly expressed in a subset of Lin(-) Sca-1(+) c-Kit(+) CD48(-) CD150(+) long-term (LT) HSCs, and its expression is tightly associated with HSC quiescence. We also show that NR4A1 expression in HSCs is induced by PGE2, a known enhancer of stem cell engraftment potential. Finally, we find that both NR4A1(GFP+) and NR4A1(GFP-) HSCs successfully engraft primary and secondary irradiated hosts; however, NR4A1(GFP+) HSCs are distinctly myeloid-biased. These results show that NR4A1 expression identifies a highly quiescent and distinct population of myeloid-biased LT-HSCs.
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Affiliation(s)
- Ruben H Land
- Department of Microbiology and Immunology, Herbert Irving Comprehensive Cancer Center, Columbia University, New York, New York, USA
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39
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Moirangthem RD, Singh S, Adsul A, Jalnapurkar S, Limaye L, Kale VP. Hypoxic niche-mediated regeneration of hematopoiesis in the engraftment window is dominantly affected by oxygen tension in the milieu. Stem Cells Dev 2015; 24:2423-36. [PMID: 26107807 PMCID: PMC4599134 DOI: 10.1089/scd.2015.0112] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
The bone marrow (BM) microenvironment or the hematopoietic stem cell (HSC) niche is normally hypoxic, which maintains HSC quiescence. Paradoxically, transplanted HSCs rapidly proliferate in this niche. Pretransplant myelosuppression results in a substantial rise in oxygen levels in the marrow microenvironment due to reduced cellularity and consequent low oxygen consumption. Therefore, it may be construed that the rapid proliferation of the engrafted HSCs in the BM niche is facilitated by the transiently elevated oxygen tension in this milieu during the “engraftment window.” To determine whether oxygen tension dominantly affects the regeneration of hematopoiesis in the BM niche, we created an “oxygen-independent hypoxic niche” by treating BM-derived mesenchymal stromal cells (BMSCs) with a hypoxia-mimetic compound, cobalt chloride (CoCl2) and cocultured them with BM-derived HSC-enriched cells under normoxic conditions (HSCs; CoCl2-cocultures). Cocultures with untreated BMSCs incubated under normoxia (control- cocultures) or hypoxia (1% O2; hypoxic-cocultures) were used as comparators. Biochemical analyses showed that though, both CoCl2 and hypoxia evoked comparable signals in the BMSCs, the regeneration of hematopoiesis in their respective cocultures was radically different. The CoCl2-BMSCs supported robust hematopoiesis, while the hypoxic-BMSCs exerted strong inhibition. The hematopoiesis-supportive ability of CoCl2-BMSCs was abrogated if the CoCl2-cocultures were incubated under hypoxia, demonstrating that the prevalent oxygen tension in the milieu dominantly affects the outcome of the HSC-BM niche interactions. Our data suggest that pharmacologically delaying the reestablishment of hypoxia in the BM may boost post-transplant regeneration of hematopoiesis.
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Affiliation(s)
| | - Shweta Singh
- Stem Cell Lab, National Centre for Cell Science , Pune, India
| | - Ashwini Adsul
- Stem Cell Lab, National Centre for Cell Science , Pune, India
| | | | - Lalita Limaye
- Stem Cell Lab, National Centre for Cell Science , Pune, India
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40
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Mantel CR, O'Leary HA, Chitteti BR, Huang X, Cooper S, Hangoc G, Brustovetsky N, Srour EF, Lee MR, Messina-Graham S, Haas DM, Falah N, Kapur R, Pelus LM, Bardeesy N, Fitamant J, Ivan M, Kim KS, Broxmeyer HE. Enhancing Hematopoietic Stem Cell Transplantation Efficacy by Mitigating Oxygen Shock. Cell 2015; 161:1553-65. [PMID: 26073944 PMCID: PMC4480616 DOI: 10.1016/j.cell.2015.04.054] [Citation(s) in RCA: 233] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 02/20/2015] [Accepted: 04/08/2015] [Indexed: 12/13/2022]
Abstract
Hematopoietic stem cells (HSCs) reside in hypoxic niches within bone marrow and cord blood. Yet, essentially all HSC studies have been performed with cells isolated and processed in non-physiologic ambient air. By collecting and manipulating bone marrow and cord blood in native conditions of hypoxia, we demonstrate that brief exposure to ambient oxygen decreases recovery of long-term repopulating HSCs and increases progenitor cells, a phenomenon we term extraphysiologic oxygen shock/stress (EPHOSS). Thus, true numbers of HSCs in the bone marrow and cord blood are routinely underestimated. We linked ROS production and induction of the mitochondrial permeability transition pore (MPTP) via cyclophilin D and p53 as mechanisms of EPHOSS. The MPTP inhibitor cyclosporin A protects mouse bone marrow and human cord blood HSCs from EPHOSS during collection in air, resulting in increased recovery of transplantable HSCs. Mitigating EPHOSS during cell collection and processing by pharmacological means may be clinically advantageous for transplantation.
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Affiliation(s)
- Charlie R Mantel
- Department of Microbiology/Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Heather A O'Leary
- Department of Microbiology/Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Brahmananda R Chitteti
- Department of Medicine (Hematology/Oncology), Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - XinXin Huang
- Department of Microbiology/Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Scott Cooper
- Department of Microbiology/Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Giao Hangoc
- Department of Microbiology/Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Nickolay Brustovetsky
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Edward F Srour
- Department of Microbiology/Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Department of Medicine (Hematology/Oncology), Indiana University School of Medicine, Indianapolis, IN 46202, USA; Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Man Ryul Lee
- Department of Microbiology/Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Soonchunhyang Institute of Medi-bio Science, Chungcheongnam-do 336-745, Korea
| | - Steven Messina-Graham
- Department of Microbiology/Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - David M Haas
- Division of Clinical Pharmacology, Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Nadia Falah
- Division of Clinical Pharmacology, Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Reuben Kapur
- Department of Microbiology/Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Department of Biochemistry/Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Louis M Pelus
- Department of Microbiology/Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Nabeel Bardeesy
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA 02114, USA
| | - Julien Fitamant
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA 02114, USA
| | - Mircea Ivan
- Department of Microbiology/Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Department of Medicine (Hematology/Oncology), Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Kye-Seong Kim
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul 133-791, Korea
| | - Hal E Broxmeyer
- Department of Microbiology/Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA.
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41
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Simkin J, Sammarco MC, Dawson LA, Schanes PP, Yu L, Muneoka K. The mammalian blastema: regeneration at our fingertips. ACTA ACUST UNITED AC 2015; 2:93-105. [PMID: 27499871 PMCID: PMC4895320 DOI: 10.1002/reg2.36] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Revised: 03/14/2015] [Accepted: 03/16/2015] [Indexed: 02/06/2023]
Abstract
In the mouse, digit tip regeneration progresses through a series of discrete stages that include inflammation, histolysis, epidermal closure, blastema formation, and redifferentiation. Recent studies reveal how each regenerative stage influences subsequent stages to establish a blastema that directs the successful regeneration of a complex mammalian structure. The focus of this review is on early events of healing and how an amputation wound transitions into a functional blastema. The stepwise formation of a mammalian blastema is proposed to provide a model for how specific targeted treatments can enhance regenerative performance in humans.
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Affiliation(s)
- Jennifer Simkin
- Division of Developmental Biology, Department of Cell and Molecular Biology Tulane University New Orleans Louisiana 70118 USA
| | - Mimi C Sammarco
- Division of Developmental Biology, Department of Cell and Molecular Biology Tulane University New Orleans Louisiana 70118 USA
| | - Lindsay A Dawson
- Division of Developmental Biology, Department of Cell and Molecular Biology Tulane University New Orleans Louisiana 70118 USA
| | - Paula P Schanes
- Division of Developmental Biology, Department of Cell and Molecular Biology Tulane University New Orleans Louisiana 70118 USA
| | - Ling Yu
- Division of Developmental Biology, Department of Cell and Molecular Biology Tulane University New Orleans Louisiana 70118 USA
| | - Ken Muneoka
- Division of Developmental Biology, Department of Cell and Molecular Biology Tulane University New Orleans Louisiana 70118 USA
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42
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Morinet F, Parent M, Bergeron C, Pillet S, Capron C. Oxygen and viruses: a breathing story. J Gen Virol 2015; 96:1979-1982. [PMID: 25934794 DOI: 10.1099/vir.0.000172] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The effect of oxygen on virus replication is complex, and the role of hypoxia-inducible factor 1α (HIF-1α) in the metabolism of virus-infected cells remains uncertain. Solid tumours are hypoxic, and some viruses use this low oxygen tension level to facilitate their replication in tumour cells, thereby causing cell lysis. In addition, the interactions between viruses and HIF-1α may stimulate a trained immunity. However, the evolutionary basis for the oxygen regulatory mechanism of virus replication is ill-defined and requires further investigation.
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Affiliation(s)
- Frédéric Morinet
- Hôpital Saint Louis - Université Paris, Diderot-Paris 7, Paris, France
| | - Mathilde Parent
- Hôpital Ambroise Paré-Université de Versailles, Saint Quentin en Yvelynes, Versailles, France
| | - Corinne Bergeron
- Laboratoire de Fractionnement et des Biotechnologies, Les Ulis, Paris, France
| | - Sylvie Pillet
- Laboratoire des Agents Infectieux et Hygiène - Centre Hospitalier Universitaire de Saint-Etienne, Saint-Etienne, France
| | - Claude Capron
- Hôpital Ambroise Paré-Université de Versailles, Saint Quentin en Yvelynes, Versailles, France
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43
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The aryl hydrocarbon receptor nuclear translocator is an essential regulator of murine hematopoietic stem cell viability. Blood 2015; 125:3263-72. [PMID: 25855602 DOI: 10.1182/blood-2014-10-607267] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Accepted: 03/29/2015] [Indexed: 12/28/2022] Open
Abstract
Hypoxia-inducible factors (HIFs) are master regulators of the transcriptional response to low oxygen and play essential roles in embryonic development, tissue homeostasis, and disease. Recent studies have demonstrated that hematopoietic stem cells (HSCs) within the bone marrow localize to a hypoxic niche and that HIF-1α promotes HSC adaptation to stress. Because the related factor HIF-2α is also expressed in HSCs, the combined role of HIF-1α and HIF-2α in HSC maintenance is unclear. To this end, we have conditionally deleted the HIF-α dimerization partner, the aryl hydrocarbon receptor nuclear translocator (ARNT) in the hematopoietic system to ablate activity of both HIF-1α and HIF-2α and assessed the functional consequence of ARNT deficiency on fetal liver and adult hematopoiesis. We determined that ARNT is essential for adult and fetal HSC viability and homeostasis. Importantly, conditional knockout of both Hif-1α and Hif-2α phenocopied key aspects of these HSC phenotypes, demonstrating that the impact of Arnt deletion is primarily HIF dependent. ARNT-deficient long-term HSCs underwent apoptosis, potentially because of reduced B-cell lymphoma 2 (BCL-2) and vascular endothelial growth factor A (VEGF-A) expression. Our results suggest that HIF activity may regulate HSC homeostasis through these prosurvival factors.
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44
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Ebina W, Rossi DJ. Transcription factor-mediated reprogramming toward hematopoietic stem cells. EMBO J 2015; 34:694-709. [PMID: 25712209 DOI: 10.15252/embj.201490804] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
De novo generation of human hematopoietic stem cells (HSCs) from renewable cell types has been a long sought-after but elusive goal in regenerative medicine. Paralleling efforts to guide pluripotent stem cell differentiation by manipulating developmental cues, substantial progress has been made recently toward HSC generation via combinatorial transcription factor (TF)-mediated fate conversion, a paradigm established by Yamanaka's induction of pluripotency in somatic cells by mere four TFs. This review will integrate the recently reported strategies to directly convert a variety of starting cell types toward HSCs in the context of hematopoietic transcriptional regulation and discuss how these findings could be further developed toward the ultimate generation of therapeutic human HSCs.
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Affiliation(s)
- Wataru Ebina
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA Program in Cellular and Molecular Medicine, Division of Hematology/Oncology, Boston Children's Hospital, Boston, MA, USA
| | - Derrick J Rossi
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA Program in Cellular and Molecular Medicine, Division of Hematology/Oncology, Boston Children's Hospital, Boston, MA, USA Department of Pediatrics, Harvard Medical School, Boston, MA, USA Harvard Stem Cell Institute, Cambridge, MA, USA
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45
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Gori JL, Butler JM, Chan YY, Chandrasekaran D, Poulos MG, Ginsberg M, Nolan DJ, Elemento O, Wood BL, Adair JE, Rafii S, Kiem HP. Vascular niche promotes hematopoietic multipotent progenitor formation from pluripotent stem cells. J Clin Invest 2015; 125:1243-54. [PMID: 25664855 DOI: 10.1172/jci79328] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Accepted: 01/05/2015] [Indexed: 01/08/2023] Open
Abstract
Pluripotent stem cells (PSCs) represent an alternative hematopoietic stem cell (HSC) source for treating hematopoietic disease. The limited engraftment of human PSC-derived (hPSC-derived) multipotent progenitor cells (MPP) has hampered the clinical application of these cells and suggests that MPP require additional cues for definitive hematopoiesis. We hypothesized that the presence of a vascular niche that produces Notch ligands jagged-1 (JAG1) and delta-like ligand-4 (DLL4) drives definitive hematopoiesis. We differentiated hes2 human embryonic stem cells (hESC) and Macaca nemestrina-induced PSC (iPSC) line-7 with cytokines in the presence or absence of endothelial cells (ECs) that express JAG1 and DLL4. Cells cocultured with ECs generated substantially more CD34+CD45+ hematopoietic progenitors compared with cells cocultured without ECs or with ECs lacking JAG1 or DLL4. EC-induced cells exhibited Notch activation and expressed HSC-specific Notch targets RUNX1 and GATA2. EC-induced PSC-MPP engrafted at a markedly higher level in NOD/SCID/IL-2 receptor γ chain-null (NSG) mice compared with cytokine-induced cells, and low-dose chemotherapy-based selection further increased engraftment. Long-term engraftment and the myeloid-to-lymphoid ratio achieved with vascular niche induction were similar to levels achieved for cord blood-derived MPP and up to 20-fold higher than those achieved with hPSC-derived MPP engraftment. Our findings indicate that endothelial Notch ligands promote PSC-definitive hematopoiesis and production of long-term engrafting CD34+ cells, suggesting these ligands are critical for HSC emergence.
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46
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HIF-1α is required for hematopoietic stem cell mobilization and 4-prolyl hydroxylase inhibitors enhance mobilization by stabilizing HIF-1α. Leukemia 2015; 29:1366-78. [PMID: 25578474 PMCID: PMC4498452 DOI: 10.1038/leu.2015.8] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Revised: 11/28/2014] [Accepted: 12/18/2014] [Indexed: 02/07/2023]
Abstract
Many patients with hematological neoplasms fail to mobilize sufficient numbers of hematopoietic stem cells (HSCs) in response to granulocyte colony-stimulating factor (G-CSF) precluding subsequent autologous HSC transplantation. Plerixafor, a specific antagonist of the chemokine receptor CXCR4, can rescue some but not all patients who failed to mobilize with G-CSF alone. These refractory poor mobilizers cannot currently benefit from autologous transplantation. To discover alternative targetable pathways to enhance HSC mobilization, we studied the role of hypoxia-inducible factor-1α (HIF-1α) and the effect of HIF-1α pharmacological stabilization on HSC mobilization in mice. We demonstrate in mice with HSC-specific conditional deletion of the Hif1a gene that the oxygen-labile transcription factor HIF-1α is essential for HSC mobilization in response to G-CSF and Plerixafor. Conversely, pharmacological stabilization of HIF-1α with the 4-prolyl hydroxylase inhibitor FG-4497 synergizes with G-CSF and Plerixafor increasing mobilization of reconstituting HSCs 20-fold compared with G-CSF plus Plerixafor, currently the most potent mobilizing combination used in the clinic.
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47
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Lane SW, Williams DA, Watt FM. Modulating the stem cell niche for tissue regeneration. Nat Biotechnol 2014; 32:795-803. [PMID: 25093887 PMCID: PMC4422171 DOI: 10.1038/nbt.2978] [Citation(s) in RCA: 383] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Accepted: 07/06/2014] [Indexed: 02/06/2023]
Abstract
The field of regenerative medicine holds considerable promise for treating diseases that are currently intractable. Although many researchers are adopting the strategy of cell transplantation for tissue repair, an alternative approach to therapy is to manipulate the stem cell microenvironment, or niche, to facilitate repair by endogenous stem cells. The niche is highly dynamic, with multiple opportunities for intervention. These include administration of small molecules, biologics or biomaterials that target specific aspects of the niche, such as cell-cell and cell-extracellular matrix interactions, to stimulate expansion or differentiation of stem cells, or to cause reversion of differentiated cells to stem cells. Nevertheless, there are several challenges in targeting the niche therapeutically, not least that of achieving specificity of delivery and responses. We envisage that successful treatments in regenerative medicine will involve different combinations of factors to target stem cells and niche cells, applied at different times to effect recovery according to the dynamics of stem cell-niche interactions.
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Affiliation(s)
- Steven W Lane
- Division of Immunology, QIMR Berghofer Medical Research Institute, Royal Brisbane Hospital, Herston, Queensland, Australia
| | - David A Williams
- 1] Division of Hematology/Oncology, Boston Children's Hospital and Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA. [2] Harvard Stem Cell Institute, Boston, Massachusetts, USA
| | - Fiona M Watt
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, Great Maze Pond, London, UK
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48
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Developmental hematopoiesis: ontogeny, genetic programming and conservation. Exp Hematol 2014; 42:669-83. [PMID: 24950425 DOI: 10.1016/j.exphem.2014.06.001] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 05/15/2014] [Accepted: 06/09/2014] [Indexed: 02/01/2023]
Abstract
Hematopoietic stem cells (HSCs) sustain blood production throughout life and are of pivotal importance in regenerative medicine. Although HSC generation from pluripotent stem cells would resolve their shortage for clinical applications, this has not yet been achieved mainly because of the poor mechanistic understanding of their programming. Bone marrow HSCs are first created during embryogenesis in the dorsal aorta (DA) of the midgestation conceptus, from where they migrate to the fetal liver and, eventually, the bone marrow. It is currently accepted that HSCs emerge from specialized endothelium, the hemogenic endothelium, localized in the ventral wall of the DA through an evolutionarily conserved process called the endothelial-to-hematopoietic transition. However, the endothelial-to-hematopoietic transition represents one of the last steps in HSC creation, and an understanding of earlier events in the specification of their progenitors is required if we are to create them from naïve pluripotent cells. Because of their ready availability and external development, zebrafish and Xenopus embryos have enormously facilitated our understanding of the early developmental processes leading to the programming of HSCs from nascent lateral plate mesoderm to hemogenic endothelium in the DA. The amenity of the Xenopus model to lineage tracing experiments has also contributed to the establishment of the distinct origins of embryonic (yolk sac) and adult (HSC) hematopoiesis, whereas the transparency of the zebrafish has allowed in vivo imaging of developing blood cells, particularly during and after the emergence of HSCs in the DA. Here, we discuss the key contributions of these model organisms to our understanding of developmental hematopoiesis.
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49
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SDF-1 dynamically mediates megakaryocyte niche occupancy and thrombopoiesis at steady state and following radiation injury. Blood 2014; 124:277-86. [PMID: 24735964 DOI: 10.1182/blood-2014-01-547638] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Megakaryocyte (MK) development in the bone marrow progresses spatially from the endosteal niche, which promotes MK progenitor proliferation, to the sinusoidal vascular niche, the site of terminal maturation and thrombopoiesis. The chemokine stromal cell-derived factor-1 (SDF-1), signaling through CXCR4, is implicated in the maturational chemotaxis of MKs toward sinusoidal vessels. Here, we demonstrate that both IV administration of SDF-1 and stabilization of endogenous SDF-1 acutely increase MK-vasculature association and thrombopoiesis with no change in MK number. In the setting of radiation injury, we find dynamic fluctuations in marrow SDF-1 distribution that spatially and temporally correlate with variations in MK niche occupancy. Stabilization of altered SDF-1 gradients directly affects MK location. Importantly, these SDF-1-mediated changes have functional consequences for platelet production, as the movement of MKs away from the vasculature decreases circulating platelets, while MK association with the vasculature increases circulating platelets. Finally, we demonstrate that manipulation of SDF-1 gradients can improve radiation-induced thrombocytopenia in a manner additive with earlier TPO treatment. Taken together, our data support the concept that SDF-1 regulates the spatial distribution of MKs in the marrow and consequently circulating platelet numbers. This knowledge of the microenvironmental regulation of the MK lineage could lead to improved therapeutic strategies for thrombocytopenia.
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