1
|
Balint MT, Lemajić N, Jurišić V, Pantelić S, Stanisavljević D, Kurtović NK, Balint B. An evidence-based and risk-adapted GSF versus GSF plus plerixafor mobilization strategy to obtain a sufficient CD34 + cell yield in the harvest for autologous stem cell transplants. Transl Oncol 2024; 39:101811. [PMID: 38235620 PMCID: PMC10728698 DOI: 10.1016/j.tranon.2023.101811] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 10/16/2023] [Indexed: 01/19/2024] Open
Abstract
BACKGROUND Plerixafor is a bicyclam molecule with the ability to reversibly bind to receptor CXCR-4 thus leading to an increased release of stem cells (SC) into the circulation. This study aims to evaluate the efficacy of G-CSF plus plerixafor versus G-CSF alone mobilizing regimens on the basis of CD34+ cell yield and engraftment kinetics following hematopoietic SC transplants. METHODS The study incorporated 173 patients with plasma cell neoplasms (PCN), Hodgkin's lymphoma (HL) and non-Hodgkin's lymphoma (NHL), undergoing mobilization and following autologous SC-transplant. For patients with mobilization failure and those predicted to be at risk of harvesting inadequate CD34+ yields (poor-responders), plerixafor was administered. Data was collected and compared in relation to the harvesting protocols used, cell quantification, cell-engraftment potential and overall clinical outcome. RESULTS A total of 101 patients received plerixafor (58.4 %) and the median CD34+increase was 312 %. Chemotherapy-mobilized PCN-patients required less plerixafor administration (p = 0.01), no difference was observed in lymphoma groups (p = 0.46). The median CD34+cell yield was 7.8 × 106/kg bm. Patients requiring plerixafor achieved lower, but still comparable cell yields. Total cell dose infused was in correlation with engraftment kinetics. Patients requiring plerixafor had delayed platelet engraftment (p = 0.029). CONCLUSIONS Adequately selected plerixafor administration reduces "mobilization-related-failure" rate and assure a high-level cell dose for SC transplants, with superior "therapeutic-potential" and safety profile. The mobilization strategy that incorporates "just-in-time" plerixafor administration, also leads to a reduction of hospitalization days and healthcare resource utilization. For definitive conclusions, further controlled/larger clinical trials concerning correlation of CD34+ cell count/yield, with hematopoietic reconstitution are required.
Collapse
Affiliation(s)
- Milena Todorović Balint
- Clinic for Hematology, University Clinical Center of Serbia, Belgrade, Serbia; Medical Faculty, University of Belgrade, Serbia.
| | | | | | - Sofija Pantelić
- Institute for Oncology and Radiology of Serbia, Belgrade, Serbia
| | - Dejana Stanisavljević
- Medical Faculty, University of Belgrade, Serbia; Institute for Medical Statistics and Informatics, Belgrade, Serbia
| | | | - Bela Balint
- Department of Medical Sciences, Serbian Academy of Sciences and Arts, Serbia; Faculty of Medicine of the Military Medical Academy, University of Defense, Belgrade, Serbia
| |
Collapse
|
2
|
Li M, Qing R, Tao F, Xu P, Zhang S. Dynamic Dimerization of Chemokine Receptors and Potential Inhibitory Role of Their Truncated Isoforms Revealed through Combinatorial Prediction. Int J Mol Sci 2023; 24:16266. [PMID: 38003455 PMCID: PMC10671024 DOI: 10.3390/ijms242216266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/03/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
Chemokine receptors play crucial roles in fundamental biological processes. Their malfunction may result in many diseases, including cancer, autoimmune diseases, and HIV. The oligomerization of chemokine receptors holds significant functional implications that directly affect their signaling patterns and pharmacological responses. However, the oligomerization patterns of many chemokine receptors remain poorly understood. Furthermore, several chemokine receptors have highly truncated isoforms whose functional role is not yet clear. Here, we computationally show homo- and heterodimerization patterns of four human chemokine receptors, namely CXCR2, CXCR7, CCR2, and CCR7, along with their interaction patterns with their respective truncated isoforms. By combining the neural network-based AlphaFold2 and physics-based protein-protein docking tool ClusPro, we predicted 15 groups of complex structures and assessed the binding affinities in the context of atomistic molecular dynamics simulations. Our results are in agreement with previous experimental observations and support the dynamic and diverse nature of chemokine receptor dimerization, suggesting possible patterns of higher-order oligomerization. Additionally, we uncover the strong potential of truncated isoforms to block homo- and heterodimerization of chemokine receptors, also in a dynamic manner. Our study provides insights into the dimerization patterns of chemokine receptors and the functional significance of their truncated isoforms.
Collapse
Affiliation(s)
- Mengke Li
- Laboratory of Molecular Architecture, Media Lab, Massachusetts Institute of Technology, Cambridge, MA 02139, USA;
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China; (R.Q.); (F.T.); (P.X.)
| | - Rui Qing
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China; (R.Q.); (F.T.); (P.X.)
| | - Fei Tao
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China; (R.Q.); (F.T.); (P.X.)
| | - Ping Xu
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China; (R.Q.); (F.T.); (P.X.)
| | - Shuguang Zhang
- Laboratory of Molecular Architecture, Media Lab, Massachusetts Institute of Technology, Cambridge, MA 02139, USA;
| |
Collapse
|
3
|
Khan A, Paneerselvam N, Lawson BR. Antiretrovirals to CCR5 CRISPR/Cas9 gene editing - A paradigm shift chasing an HIV cure. Clin Immunol 2023; 255:109741. [PMID: 37611838 PMCID: PMC10631514 DOI: 10.1016/j.clim.2023.109741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/18/2023] [Accepted: 08/13/2023] [Indexed: 08/25/2023]
Abstract
The evolution of drug-resistant viral strains and anatomical and cellular reservoirs of HIV pose significant clinical challenges to antiretroviral therapy. CCR5 is a coreceptor critical for HIV host cell fusion, and a homozygous 32-bp gene deletion (∆32) leads to its loss of function. Interestingly, an allogeneic HSCT from an HIV-negative ∆32 donor to an HIV-1-infected recipient demonstrated a curative approach by rendering the recipient's blood cells resistant to viral entry. Ex vivo gene editing tools, such as CRISPR/Cas9, hold tremendous promise in generating allogeneic HSC grafts that can potentially replace allogeneic ∆32 HSCTs. Here, we review antiretroviral therapeutic challenges, clinical successes, and failures of allogeneic and allogeneic ∆32 HSCTs, and newer exciting developments within CCR5 editing using CRISPR/Cas9 in the search to cure HIV.
Collapse
Affiliation(s)
- Amber Khan
- The Scintillon Research Institute, 6868 Nancy Ridge Drive, San Diego, CA 92121, USA
| | | | - Brian R Lawson
- The Scintillon Research Institute, 6868 Nancy Ridge Drive, San Diego, CA 92121, USA.
| |
Collapse
|
4
|
Koda Y, Nakamoto N, Chu PS, Teratani T, Ueno A, Amiya T, Taniki N, Chiba S, Miyamoto K, Sakamoto M, Kanai T. CCR9 axis inhibition enhances hepatic migration of plasmacytoid dendritic cells and protects against liver injury. JCI Insight 2022; 7:159910. [PMID: 35943802 PMCID: PMC9536268 DOI: 10.1172/jci.insight.159910] [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: 03/07/2022] [Accepted: 08/04/2022] [Indexed: 11/17/2022] Open
Abstract
Plasmacytoid dendritic cells (pDCs) perform dual proinflammatory and immunosuppressive roles. We recently reported the potential of pDC therapy for treatment of intractable acute liver failure. However, establishment of efficient methods to deliver pDCs to the liver is essential for future clinical therapeutic applications. The present study demonstrates a higher abundance of liver and peripheral blood pDCs in mice lacking the C-C motif chemokine receptor 9 (CCR9), a pDC gut-homing receptor, than that in wild-type (WT) mice. Adoptive pDC transfer resulted in a higher efficiency of Ccr9-/- pDC migration to the liver than that to the original target organ, the small intestine, compared with that of WT pDCs. Further, Ccr9-/- pDCs consistently migrated efficiently to the concanavalin A-induced inflamed liver, and exerted a more effective immunosuppressive effect, resulting in better protection against acute liver inflammation than that demonstrated by WT pDCs. These findings highlight the therapeutic potential of the manipulation of CCR9 axis as a novel approach to improve migration of immunosuppressive pDCs to the liver in order to exploit their beneficial effects in acute liver disease.
Collapse
Affiliation(s)
- Yuzo Koda
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Nobuhiro Nakamoto
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Po-Sung Chu
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Toshiaki Teratani
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Akihisa Ueno
- Department of Pathology, Keio University School of Medicine, Tokyo, Japan
| | - Takeru Amiya
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Nobuhito Taniki
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Sayako Chiba
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Kentaro Miyamoto
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Michiie Sakamoto
- Department of Pathology, Keio University School of Medicine, Tokyo, Japan
| | - Takanori Kanai
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| |
Collapse
|
5
|
Bai R, Jiang X, Hui Z, Yoon Y, Ge J, longZhu J, Shim H. Bisamide CXCR4 Modulators: Novel Anti‐IBD Agents Acting on the Chemotaxis of Inflammatory Cells. ADVANCED THERAPEUTICS 2022. [DOI: 10.1002/adtp.202100223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Renren Bai
- School of Pharmacy Hangzhou Normal University Hangzhou Zhejiang 311121 PR China
- Key Laboratory of Elemene Class Anti‐Cancer Chinese Medicine of Zhejiang Province Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province Collaborative Innovation Center of Chinese Medicines from Zhejiang Province Hangzhou Normal University Hangzhou 311121 PR China
| | - Xiaoying Jiang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education Hangzhou Normal University Hangzhou 311121 P.R. China
| | - Zi Hui
- School of Pharmacy Hangzhou Normal University Hangzhou Zhejiang 311121 PR China
- Key Laboratory of Elemene Class Anti‐Cancer Chinese Medicine of Zhejiang Province Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province Collaborative Innovation Center of Chinese Medicines from Zhejiang Province Hangzhou Normal University Hangzhou 311121 PR China
| | - Younghyoun Yoon
- Department of Radiation Oncology, School of Medicine Emory University Atlanta GA 30322 USA
| | - Jiamin Ge
- School of Pharmacy Hangzhou Normal University Hangzhou Zhejiang 311121 PR China
- Key Laboratory of Elemene Class Anti‐Cancer Chinese Medicine of Zhejiang Province Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province Collaborative Innovation Center of Chinese Medicines from Zhejiang Province Hangzhou Normal University Hangzhou 311121 PR China
| | - Jun longZhu
- School of Pharmacy Hangzhou Normal University Hangzhou Zhejiang 311121 PR China
- Key Laboratory of Elemene Class Anti‐Cancer Chinese Medicine of Zhejiang Province Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province Collaborative Innovation Center of Chinese Medicines from Zhejiang Province Hangzhou Normal University Hangzhou 311121 PR China
| | - Hyunsuk Shim
- Department of Radiation Oncology, School of Medicine Emory University Atlanta GA 30322 USA
- Winship Cancer Institute Emory University Atlanta Georgia 30322 USA
| |
Collapse
|
6
|
Spiess DA, Campos RMP, Conde L, Didwischus N, Boltze J, Mendez-Otero R, Pimentel-Coelho PM. Subacute AMD3100 Treatment Is Not Efficient in Neonatal Hypoxic-Ischemic Rats. Stroke 2021; 53:586-594. [PMID: 34794335 DOI: 10.1161/strokeaha.120.033768] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE Despite the advances in treating neonatal hypoxic-ischemic encephalopathy (HIE) with induced hypothermia, the rates of severe disability are still high among survivors. Preclinical studies have indicated that cell therapies with hematopoietic stem/progenitor cells could improve neurological outcomes in HIE. In this study, we investigated whether the administration of AMD3100, a CXCR4 antagonist that mobilizes hematopoietic stem/progenitor cells into the circulation, has therapeutic effects in HIE. METHODS P10 Wistar rats of both sexes were subjected to right common carotid artery occlusion or sham procedure, and then were exposed to hypoxia for 120 minutes. Two subcutaneous injections of AMD3100 or vehicle were given on the third and fourth day after HIE. We first assessed the interindividual variability in brain atrophy after experimental HIE and vehicle treatment in a small cohort of rats. Based on this exploratory analysis, we designed and conducted an experiment to test the efficacy of AMD3100. Brain atrophy on day 21 after HIE was defined as the primary end point. Secondary efficacy end points were cognitive (T-water maze) and motor function (rotarod) on days 17 and 18 after HIE, respectively. RESULTS AMD3100 did not decrease the brain atrophy in animals of either sex. Cognitive impairments were not observed in the T-water maze, but male hypoxic-ischemic animals exhibited motor coordination deficits on the rotarod, which were not improved by AMD3100. A separate analysis combining data from animals of both sexes also revealed no evidence of the effectiveness of AMD3100 treatment. CONCLUSIONS These results indicate that the subacute treatment with AMD3100 does not improve structural and functional outcomes in a rat HIE model.
Collapse
Affiliation(s)
- Daiane Aparecida Spiess
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil (D.A.S., R.M.P.C., L.C., R.M.-O., P.M.P.-C.)
| | - Raquel Maria Pereira Campos
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil (D.A.S., R.M.P.C., L.C., R.M.-O., P.M.P.-C.).,Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa, Rio de Janeiro, Brazil (R.M.-O., P.M.P.-C.)
| | - Luciana Conde
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil (D.A.S., R.M.P.C., L.C., R.M.-O., P.M.P.-C.)
| | - Nadine Didwischus
- School of Life Sciences, University of Warwick, United Kingdom (N.D., J.B.)
| | - Johannes Boltze
- School of Life Sciences, University of Warwick, United Kingdom (N.D., J.B.)
| | - Rosalia Mendez-Otero
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil (D.A.S., R.M.P.C., L.C., R.M.-O., P.M.P.-C.).,Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa, Rio de Janeiro, Brazil (R.M.-O., P.M.P.-C.)
| | - Pedro Moreno Pimentel-Coelho
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil (D.A.S., R.M.P.C., L.C., R.M.-O., P.M.P.-C.)
| |
Collapse
|
7
|
Neidleman J, Luo X, George AF, McGregor M, Yang J, Yun C, Murray V, Gill G, Greene WC, Vasquez J, Lee SA, Ghosn E, Lynch KL, Roan NR. Distinctive features of SARS-CoV-2-specific T cells predict recovery from severe COVID-19. Cell Rep 2021; 36:109414. [PMID: 34260965 PMCID: PMC8238659 DOI: 10.1016/j.celrep.2021.109414] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 05/14/2021] [Accepted: 06/24/2021] [Indexed: 02/08/2023] Open
Abstract
Although T cells are likely players in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) immunity, little is known about the phenotypic features of SARS-CoV-2-specific T cells associated with recovery from severe coronavirus disease 2019 (COVID-19). We analyze T cells from 34 individuals with COVID-19 with severity ranging from mild (outpatient) to critical, culminating in death. Relative to individuals who succumbed, individuals who recovered from severe COVID-19 harbor elevated and increasing numbers of SARS-CoV-2-specific T cells capable of homeostatic proliferation. In contrast, fatal COVID-19 cases display elevated numbers of SARS-CoV-2-specific regulatory T cells and a time-dependent escalation in activated bystander CXCR4+ T cells, as assessed by longitudinal sampling. Together with the demonstration of increased proportions of inflammatory CXCR4+ T cells in the lungs of individuals with severe COVID-19, these results support a model where lung-homing T cells activated through bystander effects contribute to immunopathology, whereas a robust, non-suppressive SARS-CoV-2-specific T cell response limits pathogenesis and promotes recovery from severe COVID-19.
Collapse
Affiliation(s)
- Jason Neidleman
- Gladstone Institutes, San Francisco, CA 94158, USA; Department of Urology, University of California, San Francisco, CA 94158, USA
| | - Xiaoyu Luo
- Gladstone Institutes, San Francisco, CA 94158, USA
| | - Ashley F George
- Gladstone Institutes, San Francisco, CA 94158, USA; Department of Urology, University of California, San Francisco, CA 94158, USA
| | - Matthew McGregor
- Gladstone Institutes, San Francisco, CA 94158, USA; Department of Urology, University of California, San Francisco, CA 94158, USA
| | - Junkai Yang
- Deptartments of Medicine and Pediatrics, Lowance Center for Human Immunology, Emory Vaccine Center, Emory University, Atlanta, GA 30322, USA
| | - Cassandra Yun
- Department of Laboratory Medicine, University of California, San Francisco, CA 94110, USA
| | - Victoria Murray
- Zuckerberg San Francisco General Hospital and the University of California, San Francisco, CA 94110, USA
| | - Gurjot Gill
- Zuckerberg San Francisco General Hospital and the University of California, San Francisco, CA 94110, USA
| | - Warner C Greene
- Gladstone Institutes, San Francisco, CA 94158, USA; Department of Medicine, University of California, San Francisco, CA 94110, USA
| | - Joshua Vasquez
- Department of Medicine, University of California, San Francisco, CA 94110, USA
| | - Sulggi A Lee
- Zuckerberg San Francisco General Hospital and the University of California, San Francisco, CA 94110, USA
| | - Eliver Ghosn
- Deptartments of Medicine and Pediatrics, Lowance Center for Human Immunology, Emory Vaccine Center, Emory University, Atlanta, GA 30322, USA.
| | - Kara L Lynch
- Department of Laboratory Medicine, University of California, San Francisco, CA 94110, USA.
| | - Nadia R Roan
- Gladstone Institutes, San Francisco, CA 94158, USA; Department of Urology, University of California, San Francisco, CA 94158, USA.
| |
Collapse
|
8
|
Pecoraro AR, Hosfield BD, Li H, Shelley WC, Markel TA. Angiogenesis: A Cellular Response to Traumatic Injury. Shock 2021; 55:301-310. [PMID: 32826807 DOI: 10.1097/shk.0000000000001643] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
ABSTRACT The development of new vasculature plays a significant role in a number of chronic disease states, including neoplasm growth, peripheral arterial disease, and coronary artery disease, among many others. Traumatic injury and hemorrhage, however, is an immediate, often dramatic pathophysiologic insult that can also necessitate neovascularization to promote healing. Traditional understanding of angiogenesis involved resident endothelial cells branching outward from localized niches in the periphery. Additionally, there are a small number of circulating endothelial progenitor cells that participate directly in the process of neovessel formation. The bone marrow stores a relatively small number of so-called pro-angiogenic hematopoietic progenitor cells-that is, progenitor cells of a hematopoietic potential that differentiate into key structural cells and stimulate or otherwise support local cell growth/differentiation at the site of angiogenesis. Following injury, a number of cytokines and intercellular processes are activated or modulated to promote development of new vasculature. These processes initiate and maintain a robust response to vascular insult, allowing new vessels to canalize and anastomose and provide timely oxygen delivering to healing tissue. Ultimately as we better understand the key players in the process of angiogenesis we can look to develop novel techniques to promote healing following injury.
Collapse
Affiliation(s)
- Anthony R Pecoraro
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana
| | | | | | | | | |
Collapse
|
9
|
Neidleman J, Luo X, George AF, McGregor M, Yang J, Yun C, Murray V, Gill G, Greene WC, Vasquez J, Lee S, Ghosn E, Lynch K, Roan NR. Distinctive features of SARS-CoV-2-specific T cells predict recovery from severe COVID-19. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2021:2021.01.22.21250054. [PMID: 33532792 PMCID: PMC7852243 DOI: 10.1101/2021.01.22.21250054] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Although T cells are likely players in SARS-CoV-2 immunity, little is known about the phenotypic features of SARS-CoV-2-specific T cells associated with recovery from severe COVID-19. We analyzed T cells from longitudinal specimens of 34 COVID-19 patients with severities ranging from mild (outpatient) to critical culminating in death. Relative to patients that succumbed, individuals that recovered from severe COVID-19 harbored elevated and increasing numbers of SARS-CoV-2-specific T cells capable of homeostatic proliferation. In contrast, fatal COVID-19 displayed elevated numbers of SARS-CoV-2-specific regulatory T cells and a time-dependent escalation in activated bystander CXCR4+ T cells. Together with the demonstration of increased proportions of inflammatory CXCR4+ T cells in the lungs of severe COVID-19 patients, these results support a model whereby lung-homing T cells activated through bystander effects contribute to immunopathology, while a robust, non-suppressive SARS-CoV-2-specific T cell response limits pathogenesis and promotes recovery from severe COVID-19.
Collapse
Affiliation(s)
- Jason Neidleman
- Gladstone Institutes, San Francisco, CA, USA
- Department of Urology, University of California, San Francisco, CA, USA
| | - Xiaoyu Luo
- Gladstone Institutes, San Francisco, CA, USA
| | - Ashley F. George
- Gladstone Institutes, San Francisco, CA, USA
- Department of Urology, University of California, San Francisco, CA, USA
| | - Matthew McGregor
- Gladstone Institutes, San Francisco, CA, USA
- Department of Urology, University of California, San Francisco, CA, USA
| | - Junkai Yang
- Department of Medicine, Lowance Center for Human Immunology, Emory Vaccine Center, Emory University, Atlanta, GA, USA
| | - Cassandra Yun
- Department of Laboratory Medicine, University of California, San Francisco, CA USA
| | - Victoria Murray
- Zuckerberg San Francisco General Hospital and the University of California, San Francisco, CA, USA
| | - Gurjot Gill
- Zuckerberg San Francisco General Hospital and the University of California, San Francisco, CA, USA
| | - Warner C. Greene
- Gladstone Institutes, San Francisco, CA, USA
- Department of Medicine, University of California, San Francisco, CA, USA
| | - Joshua Vasquez
- Department of Medicine, University of California, San Francisco, CA, USA
| | - Sulggi Lee
- Zuckerberg San Francisco General Hospital and the University of California, San Francisco, CA, USA
| | - Eliver Ghosn
- Department of Medicine, Lowance Center for Human Immunology, Emory Vaccine Center, Emory University, Atlanta, GA, USA
- Department of Pediatrics, Lowance Center for Human Immunology, Emory Vaccine Center, Emory University, Atlanta, GA, USA
| | - Kara Lynch
- Department of Laboratory Medicine, University of California, San Francisco, CA USA
| | - Nadia R. Roan
- Gladstone Institutes, San Francisco, CA, USA
- Department of Urology, University of California, San Francisco, CA, USA
| |
Collapse
|
10
|
Yuan K, Liu Y, Zhang Y, Nathan A, Tian W, Yu J, Sweatt AJ, Shamshou EA, Condon D, Chakraborty A, Agarwal S, Auer N, Zhang S, Wu JC, Zamanian RT, Nicolls MR, de Jesus Perez VA. Mural Cell SDF1 Signaling Is Associated with the Pathogenesis of Pulmonary Arterial Hypertension. Am J Respir Cell Mol Biol 2020; 62:747-759. [PMID: 32084325 DOI: 10.1165/rcmb.2019-0401oc] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Pulmonary artery smooth muscle cells (PASMCs) and pericytes are NG2+ mural cells that provide structural support to pulmonary arteries and capillaries. In pulmonary arterial hypertension (PAH), both mural cell types contribute to PA muscularization, but whether similar mechanisms are responsible for their behavior is unknown. RNA-seq was used to compare the gene profile of pericytes and PASMCs from PAH and healthy lungs. NG2-Cre-ER mice were used to generate NG2-selective reporter mice (NG2tdT) for cell lineage identification and tamoxifen-inducible mice for NG2-selective SDF1 knockout (SDF1NG2-KO). Hierarchical clustering of RNA-seq data demonstrated that the genetic profile of PAH pericytes and PASMCs is highly similar. Cellular lineage staining studies on NG2tdT mice in chronic hypoxia showed that, similar to PAH, tdT+ cells accumulate in muscularized microvessels and demonstrate significant upregulation of SDF1, a chemokine involved in chemotaxis and angiogenesis. Compared with control mice, SDF1NG2-KO mice in chronic hypoxia had reduced muscularization and lower abundance of NG2+ cells around microvessels. SDF1 stimulation in healthy pericytes induced greater contractility and impaired their capacity to establish endothelial-pericyte communications. In contrast, SDF1 knockdown reduced PAH pericyte contractility and improved their capacity to associate with vascular tubes in coculture. SDF1 is upregulated in NG2+ mural cells and is associated with PA muscularization. Targeting SDF1 could help prevent and/or reverse muscularization in PAH.
Collapse
Affiliation(s)
- Ke Yuan
- Division of Pulmonary Medicine, Boston Children's Hospital, Boston, Massachusetts
| | - Yu Liu
- Stanford Cardiovascular Institute
| | | | - Abinaya Nathan
- Stanford Cardiovascular Institute.,Division of Pulmonary and Critical Care Medicine
| | - Wen Tian
- Stanford Cardiovascular Institute.,Division of Pulmonary and Critical Care Medicine.,The Vera Moulton Wall Center for Pulmonary Vascular Medicine, and.,VA Palo Alto Health Care System, Department of Medicine, Stanford University, Stanford, California; and
| | - Joyce Yu
- Stanford Cardiovascular Institute.,Division of Pulmonary and Critical Care Medicine
| | - Andrew J Sweatt
- Stanford Cardiovascular Institute.,Division of Pulmonary and Critical Care Medicine.,The Vera Moulton Wall Center for Pulmonary Vascular Medicine, and
| | - Elya A Shamshou
- Department of Immunology, University of Washington, Seattle, Washington
| | - David Condon
- Division of Pulmonary and Critical Care Medicine
| | - Ananya Chakraborty
- Stanford Cardiovascular Institute.,Division of Pulmonary and Critical Care Medicine
| | - Stuti Agarwal
- Stanford Cardiovascular Institute.,Division of Pulmonary and Critical Care Medicine
| | - Natasha Auer
- Stanford Cardiovascular Institute.,Division of Pulmonary and Critical Care Medicine
| | - Serena Zhang
- Stanford Cardiovascular Institute.,Division of Pulmonary and Critical Care Medicine
| | | | - Roham T Zamanian
- Stanford Cardiovascular Institute.,Division of Pulmonary and Critical Care Medicine.,The Vera Moulton Wall Center for Pulmonary Vascular Medicine, and
| | - Mark R Nicolls
- Stanford Cardiovascular Institute.,Division of Pulmonary and Critical Care Medicine.,The Vera Moulton Wall Center for Pulmonary Vascular Medicine, and.,VA Palo Alto Health Care System, Department of Medicine, Stanford University, Stanford, California; and
| | | |
Collapse
|
11
|
Figueira TN, Domingues MM, Illien F, Cadima-Couto I, Todorovski T, Andreu D, Sagan S, Castanho MARB, Walrant A, Veiga AS. Enfuvirtide-Protoporphyrin IX Dual-Loaded Liposomes: In Vitro Evidence of Synergy against HIV-1 Entry into Cells. ACS Infect Dis 2020; 6:224-236. [PMID: 31855415 DOI: 10.1021/acsinfecdis.9b00285] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We have developed a nanocarrier consisting of large unilamellar vesicles (LUVs) for combined delivery of two human immunodeficiency virus type 1 (HIV-1) entry inhibitors, enfuvirtide (ENF) and protoporphyrin IX (PPIX). The intrinsic lipophilicity of ENF and PPIX, a fusion inhibitor and an attachment inhibitor, respectively, leads to their spontaneous incorporation into the lipid bilayer of the LUVs nanocarrier. Both entry inhibitors partition significantly toward LUVs composed of 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC) and a 9:1 mixture of POPC:1,2-dipalmitoyl-sn-glycero-3-phosphoethanolamine-N-[methoxy(polyethylene glycol)-2000] (DPPE-PEG2000), representative of conventional and immune-evasive drug delivery formulations, respectively. These colocalize in the core of lipid membranes. Dual-loaded nanocarriers are monodispersed and retain the size distribution, thermotropic behavior, and surface charge of the unloaded form. Combination of the two entry inhibitors in the nanocarrier resulted in improved synergy against HIV-1 entry compared to combination in free form, strongly when immune-evasive formulations are used. We propose that the improved action of the entry inhibitors when loaded into the nanocarriers results from their slow release at the site of viral entry. Overall, liposomes remain largely unexplored platforms for combination of viral entry inhibitors, with potential for improvement of current antiretroviral therapy drug safety and application. Our work calls for a reappraisal of the potential of entry inhibitor combinations and delivery for clinical use in antiretroviral therapy.
Collapse
Affiliation(s)
- Tiago N. Figueira
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Marco M. Domingues
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Françoise Illien
- Sorbonne Université, École Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, 75005 Paris, France
| | - Iris Cadima-Couto
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Toni Todorovski
- Department of Experimental and Health Science, Universitat Pompeu Fabra, Barcelona Biomedical Research Park, 08003 Barcelona, Spain
| | - David Andreu
- Department of Experimental and Health Science, Universitat Pompeu Fabra, Barcelona Biomedical Research Park, 08003 Barcelona, Spain
| | - Sandrine Sagan
- Sorbonne Université, École Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, 75005 Paris, France
| | - Miguel A. R. B. Castanho
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| | - Astrid Walrant
- Sorbonne Université, École Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, 75005 Paris, France
| | - Ana Salomé Veiga
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
| |
Collapse
|
12
|
Martínez-Burgo B, Cobb SL, Pohl E, Kashanin D, Paul T, Kirby JA, Sheerin NS, Ali S. A C-terminal CXCL8 peptide based on chemokine-glycosaminoglycan interactions reduces neutrophil adhesion and migration during inflammation. Immunology 2019; 157:173-184. [PMID: 31013364 DOI: 10.1111/imm.13063] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 03/27/2019] [Accepted: 04/05/2019] [Indexed: 12/15/2022] Open
Abstract
Leucocyte recruitment is critical during many acute and chronic inflammatory diseases. Chemokines are key mediators of leucocyte recruitment during the inflammatory response, by signalling through specific chemokine G-protein-coupled receptors (GPCRs). In addition, chemokines interact with cell-surface glycosaminoglycans (GAGs) to generate a chemotactic gradient. The chemokine interleukin-8/CXCL8, a prototypical neutrophil chemoattractant, is characterized by a long, highly positively charged GAG-binding C-terminal region, absent in most other chemokines. To examine whether the CXCL8 C-terminal peptide has a modulatory role in GAG binding during neutrophil recruitment, we synthesized the wild-type CXCL8 C-terminal [CXCL8 (54-72)] (Peptide 1), a peptide with a substitution of glutamic acid (E) 70 with lysine (K) (Peptide 2) to increase positive charge; and also, a scrambled sequence peptide (Peptide 3). Surface plasmon resonance showed that Peptide 1, corresponding to the core CXCL8 GAG-binding region, binds to GAG but Peptide 2 binding was detected at lower concentrations. In the absence of cellular GAG, the peptides did not affect CXCL8-induced calcium signalling or neutrophil chemotaxis along a diffusion gradient, suggesting no effect on GPCR binding. All peptides equally inhibited neutrophil adhesion to endothelial cells under physiological flow conditions. Peptide 2, with its greater positive charge and binding to polyanionic GAG, inhibited CXCL8-induced neutrophil transendothelial migration. Our studies suggest that the E70K CXCL8 peptide, may serve as a lead molecule for further development of therapeutic inhibitors of neutrophil-mediated inflammation based on modulation of chemokine-GAG binding.
Collapse
Affiliation(s)
- Beatriz Martínez-Burgo
- Applied Immunobiology and Transplantation Research Group, Institute of Cellular Medicine, Medical School, Newcastle University, Newcastle upon Tyne, UK.,Newcastle NIHR Biomedical Research Centre, Newcastle upon Tyne, UK
| | | | - Ehmke Pohl
- Chemistry Department, Durham University, Durham, UK
| | | | | | - John A Kirby
- Applied Immunobiology and Transplantation Research Group, Institute of Cellular Medicine, Medical School, Newcastle University, Newcastle upon Tyne, UK.,Newcastle NIHR Biomedical Research Centre, Newcastle upon Tyne, UK
| | - Neil S Sheerin
- Applied Immunobiology and Transplantation Research Group, Institute of Cellular Medicine, Medical School, Newcastle University, Newcastle upon Tyne, UK.,Newcastle NIHR Biomedical Research Centre, Newcastle upon Tyne, UK
| | - Simi Ali
- Applied Immunobiology and Transplantation Research Group, Institute of Cellular Medicine, Medical School, Newcastle University, Newcastle upon Tyne, UK.,Newcastle NIHR Biomedical Research Centre, Newcastle upon Tyne, UK
| |
Collapse
|
13
|
Zhong J, Li J, Wei J, Huang D, Huo L, Zhao C, Lin Y, Chen W, Wei Y. Plumbagin Restrains Hepatocellular Carcinoma Angiogenesis by Stromal Cell-Derived Factor (SDF-1)/CXCR4-CXCR7 Axis. Med Sci Monit 2019; 25:6110-6119. [PMID: 31415486 PMCID: PMC6707097 DOI: 10.12659/msm.915782] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 04/25/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Anti-angiogenic therapy has recently emerged as a highly promising therapeutic strategy for treating hepatocellular carcinoma (HCC). MATERIAL AND METHODS We assessed cellular proliferation, invasion, and activation of growth factors (VEGF and IL-8) with SDF-1 induced in the hepatocellular carcinoma cell line SMMC-7721, and this progression was limited by plumbagin (PL). The human umbilical vein endothelial cell line HUVEC was co-cultured with SDF-1-induced SMMC-7721, and the expressions of CXCR7, CXCR4, and PI3K/Akt pathways after PL treatment were detected by RT-PCR and Western blot analysis. RESULTS The treatment of the hepatoma cell line SMMC-7721 with SDF-1 resulted in enhanced secretion of the angiogenic factors, IL-8 and VEGF, and shows that these stimulatory effects are abolished by PL. The study further demonstrated that PL not only abolishes SDF-1-induced formation of endothelial tubes, but also inhibits expression of CXCR4 and CXCR7, and partially prevents activation of angiogenic signaling pathways. CONCLUSIONS The effect of PL on the SDF-1-CXCR4/CXCR7 axis has become an attractive target for inhibiting angiogenesis in hepatoma cells. Our results provide more evidence for the clinical application of PL as part of traditional Chinese medicine in modern cancer treatment.
Collapse
Affiliation(s)
- Jing Zhong
- Department of Physiology, Faculty of Basic Medicine, Guangxi University of Chinese Medicine, Nanning, Guangxi, P.R. China
| | - Junxuan Li
- Department of Physiology, Faculty of Basic Medicine, Guangxi University of Chinese Medicine, Nanning, Guangxi, P.R. China
| | - Jiexiao Wei
- Department of Physiology, Faculty of Basic Medicine, Guangxi University of Chinese Medicine, Nanning, Guangxi, P.R. China
| | - Delun Huang
- Department of Physiology, Faculty of Basic Medicine, Guangxi University of Chinese Medicine, Nanning, Guangxi, P.R. China
| | - Lini Huo
- Department of Organic Chemistry, Faculty of Pharmacy, Guangxi University of Chinese Medicine, Nanning, Guangxi, P.R. China
| | - Chuan Zhao
- Department of Physiology, Faculty of Basic Medicine, Guangxi University of Chinese Medicine, Nanning, Guangxi, P.R. China
| | - Yuning Lin
- Department of Physiology, Faculty of Basic Medicine, Guangxi University of Chinese Medicine, Nanning, Guangxi, P.R. China
| | - Wanjun Chen
- Department of Physiology, Faculty of Basic Medicine, Guangxi University of Chinese Medicine, Nanning, Guangxi, P.R. China
| | - Yanfei Wei
- Department of Physiology, Faculty of Basic Medicine, Guangxi University of Chinese Medicine, Nanning, Guangxi, P.R. China
| |
Collapse
|
14
|
A chemotaxis model to explain WHIM neutrophil accumulation in the bone marrow of WHIM mouse model. BLOOD SCIENCE 2019; 1:102-112. [PMID: 35402788 PMCID: PMC8975054 DOI: 10.1097/bs9.0000000000000019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 07/17/2019] [Indexed: 11/25/2022] Open
Abstract
Neutrophils are essential immune cells that defend the host against pathogenic microbial agents. Neutrophils are produced in the bone marrow and are retained there through CXCR4–CXCL12 signaling. However, patients with the Warts, Hypogammaglobulinemia, Infections, and Myelokathexis (WHIM) syndrome are prone to infections due to increased accumulation of neutrophils in the bone marrow leading to low numbers of circulating neutrophils. How neutrophils accumulate in the bone marrow in this condition is poorly understood. To better understand factors involved in neutrophil accumulation in the bone marrow, neutrophils from wildtype and WHIM mouse models were characterized in their response to CXCL12 stimulation. WHIM neutrophils were found to exert stronger traction forces, formed significantly more lamellipodia-type protrusions and migrated with increased speed and displacement upon CXCL12 stimulation as compared to wildtype cells. Migration speed of WHIM neutrophils showed a larger initial increase upon CXCL12 stimulation, which decayed over a longer time period as compared to wildtype cells. We proposed a computational model based on the chemotactic behavior of neutrophils that indicated increased CXCL12 sensitivity and prolonged CXCR4 internalization adaptation time in WHIM neutrophils as being responsible for increased accumulation in the bone marrow. These findings provide a mechanistic understanding of bone marrow neutrophil accumulation in WHIM condition and novel insights into restoring neutrophil regulation in WHIM patients.
Collapse
|
15
|
Ma J, Zhang S, Liu J, Liu F, Du F, Li M, Chen AT, Bao Y, Suh HW, Avery J, Deng G, Zhou Y, Wu P, Sheth K, Wang H, Zhou J. Targeted Drug Delivery to Stroke via Chemotactic Recruitment of Nanoparticles Coated with Membrane of Engineered Neural Stem Cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1902011. [PMID: 31290245 PMCID: PMC11089900 DOI: 10.1002/smll.201902011] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 06/17/2019] [Indexed: 05/18/2023]
Abstract
Cell membrane coating has recently emerged as a promising biomimetic approach to engineering nanoparticles (NPs) for targeted drug delivery. However, simple cell membrane coating may not meet the need for efficient drug delivery to the brain. Here, a novel molecular engineering strategy to modify the surface of NPs with a cell membrane coating for enhanced brain penetration is reported. By using poly(lactic-co-glycolic) acid NPs as a model, it is shown that delivery of NPs to the ischemic brain is enhanced through surface coating with the membrane of neural stem cells (NSCs), and the delivery efficiency can be further increased using membrane isolated from NSCs engineered for overexpression of CXCR4. It is found that this enhancement is mediated by the chemotactic interaction of CXCR4 with SDF-1, which is enriched in the ischemic microenvironment. It is demonstrated that the resulting CXCR4-overexpressing membrane-coated NPs, termed CMNPs, significantly augment the efficacy of glyburide, an anti-edema agent, for stroke treatment. The study suggests a new approach to improving drug delivery to the ischemic brain and establishes a novel formulation of glyburide that can be potentially translated into clinical applications to improve management of human patients with stroke.
Collapse
Affiliation(s)
- Junning Ma
- Department of Neurosurgery, Yale University, New Haven, CT, 06511, USA
| | - Shenqi Zhang
- Department of Neurosurgery, Yale University, New Haven, CT, 06511, USA
| | - Jun Liu
- Department of Neurosurgery, Yale University, New Haven, CT, 06511, USA
| | - Fuyao Liu
- Department of Neurosurgery, Yale University, New Haven, CT, 06511, USA
| | - Fenyi Du
- Department of Neurosurgery, Yale University, New Haven, CT, 06511, USA
| | - Miao Li
- Department of Neurosurgery, Yale University, New Haven, CT, 06511, USA
| | - Ann T Chen
- Department of Biomedical Engineering, Yale University, New Haven, CT, 06511, USA
| | - Youmei Bao
- Department of Neurosurgery, Yale University, New Haven, CT, 06511, USA
| | - Hee Won Suh
- Department of Biomedical Engineering, Yale University, New Haven, CT, 06511, USA
| | - Jonathan Avery
- Department of Neurosurgery, Yale University, New Haven, CT, 06511, USA
| | - Gang Deng
- Department of Neurosurgery, Yale University, New Haven, CT, 06511, USA
| | - Yu Zhou
- Department of Neurosurgery, Yale University, New Haven, CT, 06511, USA
| | - Peng Wu
- Department of Neurosurgery, Yale University, New Haven, CT, 06511, USA
| | - Kevin Sheth
- Department of Neurology, Yale University, New Haven, CT, 06510, USA
| | - Haijun Wang
- Department of Neurosurgery, The First Affiliated Hospital Sun Yat-Sen University, Guangzhou, Guangdong, 510080, China
| | - Jiangbing Zhou
- Department of Neurosurgery, Yale University, New Haven, CT, 06511, USA
| |
Collapse
|
16
|
Song L, Yuan X, Jones Z, Griffin K, Zhou Y, Ma T, Li Y. Assembly of Human Stem Cell-Derived Cortical Spheroids and Vascular Spheroids to Model 3-D Brain-like Tissues. Sci Rep 2019; 9:5977. [PMID: 30979929 PMCID: PMC6461701 DOI: 10.1038/s41598-019-42439-9] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 04/01/2019] [Indexed: 02/07/2023] Open
Abstract
Human cerebral organoids derived from induced pluripotent stem cells (iPSCs) provide novel tools for recapitulating the cytoarchitecture of human brain and for studying biological mechanisms of neurological disorders. However, the heterotypic interactions of neurovascular units, composed of neurons, pericytes, astrocytes, and brain microvascular endothelial cells, in brain-like tissues are less investigated. The objective of this study is to investigate the impacts of neural spheroids and vascular spheroids interactions on the regional brain-like tissue patterning in cortical spheroids derived from human iPSCs. Hybrid neurovascular spheroids were constructed by fusion of human iPSC-derived cortical neural progenitor cell (iNPC) spheroids, endothelial cell (iEC) spheroids, and the supporting human mesenchymal stem cells (MSCs). Single hybrid spheroids were constructed at different iNPC: iEC: MSC ratios of 4:2:0, 3:2:1 2:2:2, and 1:2:3 in low-attachment 96-well plates. The incorporation of MSCs upregulated the secretion levels of cytokines VEGF-A, PGE2, and TGF-β1 in hybrid spheroid system. In addition, tri-cultured spheroids had high levels of TBR1 (deep cortical layer VI) and Nkx2.1 (ventral cells), and matrix remodeling genes, MMP2 and MMP3, as well as Notch-1, indicating the crucial role of matrix remodeling and cell-cell communications on cortical spheroid and organoid patterning. Moreover, tri-culture system elevated blood-brain barrier gene expression (e.g., GLUT-1), CD31, and tight junction protein ZO1 expression. Treatment with AMD3100, a CXCR4 antagonist, showed the immobilization of MSCs during spheroid fusion, indicating a CXCR4-dependent manner of hMSC migration and homing. This forebrain-like model has potential applications in understanding heterotypic cell-cell interactions and novel drug screening in diseased human brain.
Collapse
Affiliation(s)
- Liqing Song
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL, USA
| | - Xuegang Yuan
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL, USA
| | - Zachary Jones
- Department of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, Florida, USA
| | - Kyle Griffin
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL, USA
| | - Yi Zhou
- Department of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, Florida, USA
| | - Teng Ma
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL, USA.
| | - Yan Li
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL, USA.
| |
Collapse
|
17
|
FL/GCSF/AMD3100-mobilized Hematopoietic Stem Cells Induce Mixed Chimerism With Nonmyeloablative Conditioning and Transplantation Tolerance. Transplantation 2019; 103:1360-1371. [PMID: 30747856 DOI: 10.1097/tp.0000000000002657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Mobilization of hematopoietic stem cells (HSCs) has become the preferred approach for HSC transplantation. AMD3100, a competitive inhibitor of C-X-C motif chemokine receptor-4, has been found to be a rapid mobilizing agent. The present study evaluated approaches to optimize the product collected. METHODS Mobilized peripheral blood mononuclear cells (mPBMCs) from B6 mice were transplanted to recipient BALB/c mice conditioned with ablative or nonmyeloablative approaches. RESULTS The optimal dose of AMD3100 was found to be 5.0 mg/kg. Optimal HSC mobilization was observed when AMD3100 (day 10) was coadministered with Flt3 ligand (FL) (days 1-10) and granulocyte colony-stimulating factor (GCSF) (days 4-10). There was a 228.8-fold increase of HSC with FL/GCSF/AMD3100 compared with AMD3100 treatment alone. When unmodified mPBMCs were transplanted into ablated allogeneic recipients, all recipients expired by day 40 from severe acute graft versus host disease (GVHD). When T cells were depleted from mPBMC, long-term survival and engraftment were achieved in majority of the recipients. When PBMC mobilized by FL/GCSF/AMD3100 were transplanted into recipients conditioned nonmyeloablatively with anti-CD154/rapamycin plus 100, 200, and 300 cGy of total body irradiation, 42.9%, 85.7%, and 100% of mice engrafted, respectively. Donor chimerism was durable, multilineage, and stable. Lymphocytes from mixed chimeras showed no response to host or donor antigens, suggesting functional bidirection T-cell tolerance in vitro. Most importantly, none of the engrafted mice exhibited clinical features of GVHD. CONCLUSIONS FL/GCSF/AMD3100 is an efficient treatment to maximally mobilize HSC. Durable engraftment and donor-specific tolerance can be achieved with mPBMC in nonmyeloablative conditioning without GVHD.
Collapse
|
18
|
Kriegsmann K, Wuchter P. Mobilization and Collection of Peripheral Blood Stem Cells in Adults: Focus on Timing and Benchmarking. Methods Mol Biol 2019; 2017:41-58. [PMID: 31197767 DOI: 10.1007/978-1-4939-9574-5_4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Peripheral blood stem cells (PBSCs) are preferentially used as a hematopoietic stem cell source for autologous blood stem cell transplantation (ABSCT) upon high-dose chemotherapy (HDT) in a variety of hemato-oncologic diseases. As a prerequisite, hematopoietic stem cells have to be mobilized into the peripheral blood (PB) and collected by leukapheresis (LP). Despite continuous improvements, e.g., the introduction of plerixafor, current challenges are the further optimization regarding the leukapheresis procedure, preventing collection failures, as well as benchmarking and harmonization of mobilization approaches between institutions.This chapter summarizes the current PBSC mobilization and collection approaches and is focusing on timely orchestration of mobilization therapy, granulocyte colony-stimulating factor (G-CSF) application, and peripheral blood (PB) CD34+ cell assessment. Moreover, strategies for prediction and performance assessment of the PBSC collection yield are discussed.
Collapse
Affiliation(s)
- Katharina Kriegsmann
- Department of Medicine V (Hematology, Oncology, Rheumatology), Heidelberg University, Heidelberg, Germany
| | - Patrick Wuchter
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany. .,German Red Cross Blood Service Baden-Württemberg - Hessen, Mannheim, Germany.
| |
Collapse
|
19
|
Guo X, Deng G, Liu J, Zou P, Du F, Liu F, Chen AT, Hu R, Li M, Zhang S, Tang Z, Han L, Liu J, Sheth KN, Chen Q, Gou X, Zhou J. Thrombin-Responsive, Brain-Targeting Nanoparticles for Improved Stroke Therapy. ACS NANO 2018; 12:8723-8732. [PMID: 30107729 DOI: 10.1021/acsnano.8b04787] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Current treatments for ischemic stroke are insufficient. The lack of effective pharmacological approaches can be mainly attributed to the difficulty in overcoming the blood-brain barrier. Here, we report a simple strategy to synthesize protease-responsive, brain-targeting nanoparticles for the improved treatment of stroke. The resulting nanoparticles respond to proteases enriched in the ischemic microenvironment, including thrombin or matrix metalloproteinase-9, by shrinking or expanding their size. Targeted delivery was achieved using surface conjugation of ligands that bind to proteins that were identified to enrich in the ischemic brain using protein arrays. By screening a variety of formulations, we found that AMD3100-conjugated, size-shrinkable nanoparticles (ASNPs) exhibited the greatest delivery efficiency. The brain targeting effect is mainly mediated by AMD3100, which interacts with CXCR4 that is enriched in the ischemic brain tissue. We showed that ASNPs significantly enhanced the efficacy of glyburide, a promising stroke therapeutic drug whose efficacy is limited by its toxicity. Due to their high efficiency in penetrating the ischemic brain and low toxicity, we anticipate that ASNPs have the potential to be translated into clinical applications for the improved treatment of stroke patients.
Collapse
Affiliation(s)
| | - Gang Deng
- Department of Neurosurgery , Renmin Hospital of Wuhan University , Wuhan , Hubei 430060 , China
| | | | | | | | | | | | | | | | - Shenqi Zhang
- Department of Neurosurgery , Renmin Hospital of Wuhan University , Wuhan , Hubei 430060 , China
| | - Zhishu Tang
- Shaanxi Key Laboratory of Brain Disorders & Institute of Basic and Translational Medicine , Xi'an Medical University , Xi'an , Shannxi 710021 , China
| | | | - Jie Liu
- Department of Biomedical Engineering, School of Engineering , Sun Yat-sen University , Guangzhou , Guangdong 510006 , China
| | | | - Qianxue Chen
- Department of Neurosurgery , Renmin Hospital of Wuhan University , Wuhan , Hubei 430060 , China
| | - Xingchun Gou
- Shaanxi Key Laboratory of Brain Disorders & Institute of Basic and Translational Medicine , Xi'an Medical University , Xi'an , Shannxi 710021 , China
| | | |
Collapse
|
20
|
Pelagalli A, Nardelli A, Lucarelli E, Zannetti A, Brunetti A. Autocrine signals increase ovine mesenchymal stem cells migration through Aquaporin-1 and CXCR4 overexpression. J Cell Physiol 2018; 233:6241-6249. [PMID: 29345324 DOI: 10.1002/jcp.26493] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 01/17/2018] [Indexed: 12/13/2022]
Abstract
Sheep is a relevant large animal model that is frequently used to test innovative tissue engineering (TE) approaches especially for bone reconstruction. Mesenchymal stem cells (MSCs) are used in TE applications because they represent key component of adult tissue repair. Importantly, MSCs from different species show similar characteristics, which facilitated their application in translational studies using animal models. Nowadays, many researches are focusing on the use of ovine mesenchymal stem cells (oMSCs) in orthopedic preclinical settings for regenerative medicine purposes. Therefore, there is a need to amplify our knowledge on the mechanisms underlying the behaviour of these cells. Recently, several studies have shown that MSC function is largely dependent on factors that MSCs release in the environment, as well as, in conditioned medium (CM). It has been demonstrated that MSCs through autocrine and paracrine signals are able to stimulate proliferation, migration, and differentiation of different type of cells including themselves. In this study, we investigated the effects of the CM produced by oMSCs on oMSCs themselves and we explored the signal pathways involved. We observed that CM caused an enhancement of oMSC migration. Furthermore, we found that CM increased levels of two membrane proteins involved in cell migration, Aquaporin 1 (AQP1), and C-X-C chemokine receptor type 4 (CXCR4), and activated Akt and Erk intracellular signal pathways. In conclusion, taken together our results suggest the high potential of autologous CM as a promising tool to modulate behaviour of MSCs thus improving their use in therapeutically approaches.
Collapse
Affiliation(s)
- Alessandra Pelagalli
- Department of Advanced Biomedical Sciences, University of Naples "Federico II", Naples, Italy.,Institute of Biostructure and Bioimaging, National Research Council, Naples, Italy
| | - Anna Nardelli
- Institute of Biostructure and Bioimaging, National Research Council, Naples, Italy
| | - Enrico Lucarelli
- Osteoarticolar Regeneration Laboratory, Rizzoli Orthopedic Institute, Bologna, Italy
| | - Antonella Zannetti
- Institute of Biostructure and Bioimaging, National Research Council, Naples, Italy
| | - Arturo Brunetti
- Department of Advanced Biomedical Sciences, University of Naples "Federico II", Naples, Italy
| |
Collapse
|
21
|
Stromal cell-derived factor 1α facilitates aneurysm remodeling in elastase-induced rabbit saccular aneurysm. Cytokine 2018; 102:123-130. [DOI: 10.1016/j.cyto.2017.07.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 07/01/2017] [Accepted: 07/26/2017] [Indexed: 11/24/2022]
|
22
|
Parry SM, Peeples ES. The impact of hypoxic-ischemic brain injury on stem cell mobilization, migration, adhesion, and proliferation. Neural Regen Res 2018; 13:1125-1135. [PMID: 30028311 PMCID: PMC6065219 DOI: 10.4103/1673-5374.235012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Neonatal hypoxic-ischemic encephalopathy continues to be a significant cause of death or neurodevelopmental delays despite standard use of therapeutic hypothermia. The use of stem cell transplantation has recently emerged as a promising supplemental therapy to further improve the outcomes of infants with hypoxic-ischemic encephalopathy. After the injury, the brain releases several chemical mediators, many of which communicate directly with stem cells to encourage mobilization, migration, cell adhesion and differentiation. This manuscript reviews the biomarkers that are released from the injured brain and their interactions with stem cells, providing insight regarding how their upregulation could improve stem cell therapy by maximizing cell delivery to the injured tissue.
Collapse
Affiliation(s)
- Stephanie M Parry
- Department of Pediatrics, University of Nebraska Medical Center, Omaha, NE, USA
| | - Eric S Peeples
- Department of Pediatrics, University of Nebraska Medical Center, Omaha, NE, USA
| |
Collapse
|
23
|
Treatment of acute ocular chemical burns. Surv Ophthalmol 2017; 63:214-235. [PMID: 28935121 DOI: 10.1016/j.survophthal.2017.09.005] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 09/08/2017] [Accepted: 09/11/2017] [Indexed: 01/15/2023]
Abstract
Ocular chemical burns are an ophthalmic emergency and are responsible for 11.5%-22.1% of ocular injuries. Immediate copious irrigation is universally recommended in acute ocular burns to remove the offending agent and minimize damage. Conventional medical therapy consists of the use of agents that promote epithelialization, minimize inflammation, and prevent cicatricial complications. Biological fluids such as autologous serum, umbilical cord blood serum, platelet-rich plasma, and amniotic membrane suspension are a rich source of growth factors and promote healing when used as adjuncts to conventional therapy. Surgical treatment of acute ocular burns includes the debridement of the necrotic tissue, application of tissue adhesives, tenoplasty, and tectonic keratoplasty. Amniotic membrane transplantation is a novel surgical treatment that is increasingly being used as an adjunct to conventional treatment to promote epithelial healing, minimize pain, and restore visual acuity. Various experimental treatments that aim to promote wound healing and minimize inflammation are being evaluated such as human mesenchymal and adipose stem cells, beta-1,3 glucan, angiotensin-converting enzyme inhibitors, cultivated fibroblasts, zinc desferrioxamine, antifibrinolytic agents, antioxidants, collagen cross-linking, and inhibitors of corneal neovascularization.
Collapse
|
24
|
Mesenchymal Stem Cell Administration in Patients with Chronic Obstructive Pulmonary Disease: State of the Science. Stem Cells Int 2017; 2017:8916570. [PMID: 28303154 PMCID: PMC5337878 DOI: 10.1155/2017/8916570] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 01/22/2017] [Indexed: 01/10/2023] Open
Abstract
Patients with chronic obstructive pulmonary disease (COPD) have chronic, irreversible airway inflammation; currently, there is no effective or curative treatment and the main goals of COPD management are to mitigate symptoms and improve patients' quality of life. Stem cell based therapy offers a promising therapeutic approach that has shown potential in diverse degenerative lung diseases. Preclinical studies have demonstrated encouraging outcomes of mesenchymal stem/stromal cells (MSCs) therapy for lung disorders including emphysema, bronchopulmonary dysplasia, fibrosis, and acute respiratory distress syndrome. This review summarizes available data on 15 studies currently registered by the ClinicalTrials.gov repository, which used different stem cell therapy protocols for COPD; these included bone marrow mononuclear cells (BMMCs), bone marrow-derived MSCs, adipose-derived stem/stromal cells (ADSCs), and adipose-derived MSCs. Published results of three trials indicate that administering BMMCs or MSCs in the setting of degenerative lung disease is safe and may improve patients' condition and quality of life; however, larger-scale studies are needed to evaluate efficacy. Results of another completed trial (NCT01872624) are not yet published, and eleven other studies are ongoing; these include MSCs therapy in emphysema, several studies of ADSCs in COPD, another in idiopathic pulmonary fibrosis, and plerixafor mobilization of CD117 stem cells to peripheral blood.
Collapse
|
25
|
Zhao Y, Detering L, Sultan D, Cooper ML, You M, Cho S, Meier SL, Luehmann H, Sun G, Rettig M, Dehdashti F, Wooley KL, DiPersio JF, Liu Y. Gold Nanoclusters Doped with (64)Cu for CXCR4 Positron Emission Tomography Imaging of Breast Cancer and Metastasis. ACS NANO 2016; 10:5959-70. [PMID: 27159079 PMCID: PMC5479491 DOI: 10.1021/acsnano.6b01326] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
As an emerging class of nanomaterial, nanoclusters hold great potential for biomedical applications due to their unique sizes and related properties. Herein, we prepared a (64)Cu doped gold nanocluster ((64)CuAuNC, hydrodynamic size: 4.2 ± 0.5 nm) functionalized with AMD3100 (or Plerixafor) for targeted positron emission tomography (PET) imaging of CXCR4, an up-regulated receptor on primary tumor and lung metastasis in a mouse 4T1 orthotopic breast cancer model. The preparation of targeted (64)CuAuNCs-AMD3100 (4.5 ± 0.4 nm) was done via one-step reaction with controlled conjugation of AMD3100 and specific activity, as well as improved colloid stability. In vivo pharmacokinetic evaluation showed favorable organ distribution and significant renal and fecal clearance within 48 h post injection. The expression of CXCR4 in tumors and metastasis was characterized by immunohistochemistry, Western blot, and reverse transcription polymerase chain reaction analysis. PET imaging with (64)CuAuNCs-AMD3100 demonstrated sensitive and accurate detection of CXCR4 in engineered tumors expressing various levels of the receptor, while competitive receptor blocking studies confirmed targeting specificity of the nanoclusters. In contrast to nontargeted (64)CuAuNCs and (64)Cu-AMD3100 alone, the targeted (64)CuAuNCs-AMD3100 detected up-regulated CXCR4 in early stage tumors and premetastatic niche of lung earlier and with greater sensitivity. Taken together, we believe that (64)CuAuNCs-AMD3100 could serve as a useful platform for early and accurate detection of breast cancer and metastasis providing an essential tool to guide the treatment.
Collapse
Affiliation(s)
- Yongfeng Zhao
- Mallinckrodt Institute of Radiology, Washington University, St. Louis, Missouri, 63110, United States
| | - Lisa Detering
- Mallinckrodt Institute of Radiology, Washington University, St. Louis, Missouri, 63110, United States
| | - Deborah Sultan
- Mallinckrodt Institute of Radiology, Washington University, St. Louis, Missouri, 63110, United States
| | - Matthew L Cooper
- Department of Medicine, Washington University, St. Louis, Missouri, 63110, United States
| | - Meng You
- Mallinckrodt Institute of Radiology, Washington University, St. Louis, Missouri, 63110, United States
| | - Sangho Cho
- Department of Chemistry, Department of Chemical Engineering, and Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77842, United States
| | - Stephanie L. Meier
- Department of Medicine, Washington University, St. Louis, Missouri, 63110, United States
| | - Hannah Luehmann
- Mallinckrodt Institute of Radiology, Washington University, St. Louis, Missouri, 63110, United States
| | - Guorong Sun
- Department of Chemistry, Department of Chemical Engineering, and Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77842, United States
| | - Michael Rettig
- Department of Medicine, Washington University, St. Louis, Missouri, 63110, United States
| | - Farrokh Dehdashti
- Mallinckrodt Institute of Radiology, Washington University, St. Louis, Missouri, 63110, United States
| | - Karen L. Wooley
- Department of Chemistry, Department of Chemical Engineering, and Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77842, United States
| | - John F. DiPersio
- Department of Medicine, Washington University, St. Louis, Missouri, 63110, United States
| | - Yongjian Liu
- Mallinckrodt Institute of Radiology, Washington University, St. Louis, Missouri, 63110, United States
- Corresponding Author: Address correspondence to:
| |
Collapse
|
26
|
Misra AC, Luker KE, Durmaz H, Luker GD, Lahann J. CXCR4-Targeted Nanocarriers for Triple Negative Breast Cancers. Biomacromolecules 2015; 16:2412-7. [PMID: 26154069 PMCID: PMC5474759 DOI: 10.1021/acs.biomac.5b00653] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
CXCR4 is a cell membrane receptor that is overexpressed in triple-negative breast cancers and implicated in growth and metastasis of this disease. Using electrohydrodynamic cojetting, we prepared multicompartmental drug delivery carriers for CXCR4 targeting. The particles are comprised of a novel poly(lactide-co-glycolide) derivative that allows for straightforward immobilization of 1,1'-[1,4-phenylenebis(methylene)]bis[1,4,8,11-tetraazacyclotetradecane] (Plerixafor), a small molecule with affinity for CXCR4. Targeted nanocarriers are selectively taken up by CXCR4-expressing cells and effectively block CXCR4 signaling. This study suggests that CXCR4 may be an effective target for nanocarrier-based therapies.
Collapse
Affiliation(s)
- Asish C. Misra
- Department of Chemical Engineering, Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan, United States
| | - Kathryn E. Luker
- Center for Molecular Imaging, Department of Radiology, University of Michigan, Ann Arbor, Michigan, United States
| | - Hakan Durmaz
- Department of Chemical Engineering, Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan, United States
| | - Gary D. Luker
- Center for Molecular Imaging, Department of Radiology, University of Michigan, Ann Arbor, Michigan, United States
| | - Joerg Lahann
- Department of Chemical Engineering, Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan, United States
- Institute of Functional Interfaces, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| |
Collapse
|
27
|
Mendt M, Cardier JE. Role of SDF-1 (CXCL12) in regulating hematopoietic stem and progenitor cells traffic into the liver during extramedullary hematopoiesis induced by G-CSF, AMD3100 and PHZ. Cytokine 2015; 76:214-221. [PMID: 26093947 DOI: 10.1016/j.cyto.2015.05.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 04/09/2015] [Accepted: 05/05/2015] [Indexed: 12/23/2022]
Abstract
The stromal cell derived factor 1 (SDF-1/CXCL12) plays an essential role in the homing of hematopoietic stem and progenitor cells (HSPCs) to bone marrow (BM). It is not known whether SDF-1 may also regulate the homing of HSPCs to the liver during extramedullary hematopoiesis (EMH). Here, we investigated the possible role of SDF-1 in attracting HSPCs to the liver during experimental EMH induced by the hematopoietic mobilizers G-CSF, AMD3100 and phenylhydrazine (PHZ). Mice treated with G-CSF, AMD3100 and PHZ showed a significant increase in the expression of SDF-1 in the liver sinusoidal endothelial cells (LSECs) microenvironments. Liver from mice treated with the hematopoietic mobilizers showed HSPCs located adjacent to the LSEC microenvironments, expressing high levels of SDF-1. An inverse relationship was found between the hepatic SDF-1 levels and those in the BM. In vitro, LSEC monolayers induced the migration of HSPCs, and this effect was significantly reduced by AMD3100. In conclusion, our results provide the first evidence showing that SDF-1 expressed by LSEC can be a major player in the recruitment of HSPCs to the liver during EMH induced by hematopoietic mobilizers.
Collapse
Affiliation(s)
- Mayela Mendt
- Unidad de Terapia Celular - Laboratorio de Patología Celular y Molecular, Centro de Medicina Experimental, Instituto Venezolano de Investigaciones Científicas (IVIC), Apartado 21827, Caracas 1020-A, Venezuela
| | - Jose E Cardier
- Unidad de Terapia Celular - Laboratorio de Patología Celular y Molecular, Centro de Medicina Experimental, Instituto Venezolano de Investigaciones Científicas (IVIC), Apartado 21827, Caracas 1020-A, Venezuela.
| |
Collapse
|
28
|
Lee KH, Jung SK, Kim SJ, Jang JH, Kim K, Kim WS, Jung CW, Kim DW, Kang ES. Incidence and risk factors of poor mobilization in adult autologous peripheral blood stem cell transplantation: a single-centre experience. Vox Sang 2014; 107:407-15. [DOI: 10.1111/vox.12183] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2014] [Revised: 06/09/2014] [Accepted: 06/23/2014] [Indexed: 10/25/2022]
Affiliation(s)
- K. H. Lee
- Department of Laboratory Medicine and Genetics; Samsung Medical Center; Sungkyunkwan University School of Medicine; Seoul Korea
| | - S. K. Jung
- Department of Laboratory Medicine and Genetics; Samsung Medical Center; Sungkyunkwan University School of Medicine; Seoul Korea
| | - S. J. Kim
- Division of Hematology-Oncology; Department of Medicine; Samsung Medical Center; Sungkyunkwan University School of Medicine; Seoul Korea
| | - J. H. Jang
- Division of Hematology-Oncology; Department of Medicine; Samsung Medical Center; Sungkyunkwan University School of Medicine; Seoul Korea
| | - K. Kim
- Division of Hematology-Oncology; Department of Medicine; Samsung Medical Center; Sungkyunkwan University School of Medicine; Seoul Korea
| | - W. S. Kim
- Division of Hematology-Oncology; Department of Medicine; Samsung Medical Center; Sungkyunkwan University School of Medicine; Seoul Korea
| | - C. W. Jung
- Division of Hematology-Oncology; Department of Medicine; Samsung Medical Center; Sungkyunkwan University School of Medicine; Seoul Korea
| | - D. W. Kim
- Department of Laboratory Medicine and Genetics; Samsung Medical Center; Sungkyunkwan University School of Medicine; Seoul Korea
| | - E. S. Kang
- Department of Laboratory Medicine and Genetics; Samsung Medical Center; Sungkyunkwan University School of Medicine; Seoul Korea
| |
Collapse
|
29
|
Bone marrow stem/progenitor cell mobilization in C57BL/6J and BALB/c mice. Lab Anim Res 2014; 30:14-20. [PMID: 24707300 PMCID: PMC3973806 DOI: 10.5625/lar.2014.30.1.14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 02/10/2014] [Accepted: 02/14/2014] [Indexed: 01/13/2023] Open
Abstract
Bone marrow (BM) has been considered as a reservoir of stem/progenitor cells which are able to differentiate into ectodermal, endodermal, and mesodermal origins in vitro as well as in vivo. Following adequate stimulation, such as granulocyte stimulating factor (G-CSF) or AMD3100, BM resident stem/progenitor cells (BMSPCs) can be mobilized to peripheral blood. Several host-related factors are known to participate in this mobilization process. In fact, a significant number of donors are resistant to G-CSF induced mobilization protocols. AMD3100 is currently used in combination with G-CSF. However, information regarding host-related factors which may influence the AMD3100 directed mobilization is extremely limited. In this study, we were to get some more knowledge on the host-related factors that affect the efficiency of AMD3100 induced mobilization by employing in vivo mobilization experiments. As a result, we found that C57BL/6J mice are more sensitive to AMD3100 but less sensitive to G-CSF which promotes the proliferation of BMSPCs. We excluded S1P as one of the host related factor which influences AMD3100 directed mobilization because pre-treatment of S1P receptor antagonist FTY720 did not inhibit BMSPC mobilization. Further in vitro experiments revealed that BALB/c mice, compared to C57BL/6J mice, have less BMSPCs which migrate in response to host related factors such as sphingosine-1-phosphate (S1P) and to CXCL12. We conclude that AMD3100-directed mobilization depends on the number of BMSPCs rather than on the host-related factors. These results suggest that the combination of AMD3100 and G-CSF is co-operative and is optimal for the mobilization of BMSPCs.
Collapse
|
30
|
Abstract
Background Non-healing foot ulcers are the most common cause of non-traumatic amputation and hospitalization amongst diabetics in the developed world. Impaired wound neovascularization perpetuates a cycle of dysfunctional tissue repair and regeneration. Evidence implicates defective mobilization of marrow-derived progenitor cells (PCs) as a fundamental cause of impaired diabetic neovascularization. Currently, there are no FDA-approved therapies to address this defect. Here we report an endogenous PC strategy to improve diabetic wound neovascularization and closure through a combination therapy of AMD3100, which mobilizes marrow-derived PCs by competitively binding to the cell surface CXCR4 receptor, and PDGF-BB, which is a protein known to enhance cell growth, progenitor cell migration and angiogenesis. Methods and Results Wounded mice were assigned to 1 of 5 experimental arms (n = 8/arm): saline treated wild-type, saline treated diabetic, AMD3100 treated diabetic, PDGF-BB treated diabetic, and AMD3100/PDGF-BB treated diabetic. Circulating PC number and wound vascularity were analyzed for each group (n = 8/group). Cellular function was assessed in the presence of AMD3100. Using a validated preclinical model of type II diabetic wound healing, we show that AMD3100 therapy (10 mg/kg; i.p. daily) alone can rescue diabetes-specific defects in PC mobilization, but cannot restore normal wound neovascularization. Through further investigation, we demonstrate an acquired trafficking-defect within AMD3100-treated diabetic PCs that can be rescued by PDGF-BB (2 μg; topical) supplementation within the wound environment. Finally, we determine that combination therapy restores diabetic wound neovascularization and accelerates time to wound closure by 40%. Conclusions Combination AMD3100 and PDGF-BB therapy synergistically improves BM PC mobilization and trafficking, resulting in significantly improved diabetic wound closure and neovascularization. The success of this endogenous, cell-based strategy to improve diabetic wound healing using FDA-approved therapies is inherently translatable.
Collapse
|
31
|
Hamdan R, Zhou Z, Kleinerman ES. Blocking SDF-1α/CXCR4 downregulates PDGF-B and inhibits bone marrow-derived pericyte differentiation and tumor vascular expansion in Ewing tumors. Mol Cancer Ther 2013; 13:483-91. [PMID: 24282276 DOI: 10.1158/1535-7163.mct-13-0447] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Bone marrow cells (BMC) are critical to the expansion of the tumor vessel network that supports Ewing sarcoma growth. BMCs migrate to the tumor and differentiate into endothelial cells and pericytes. We recently demonstrated that stromal-derived growth factor 1α (SDF-1α) regulates platelet-derived growth factor B (PDGF-B) and that this pathway plays a critical role in bone marrow-derived pericyte differentiation in vitro. We investigated the role of SDF-1α/PDGF-B in the tumor microenvironment in vivo in promoting bone marrow-derived pericyte differentiation in Ewing tumors. The CXCR4 antagonist AMD 3100 was used to disrupt the SDF-1α/CXCR4 axis in vivo in two xenograft Ewing tumor models. BMCs from GFP(+) transgenic mice were transplanted into lethally irradiated nude mice to track BMC migration to the tumor site. Following BMC engraftment, tumor-bearing mice received daily subcutaneous injections of either PBS or AMD 3100 for 3 weeks. Tumors were resected and tumor sections were analyzed by immunohistochemistry. AMD 3100 inhibited BMC differentiation into desmin(+) and NG2(+) pericytes, affected the morphology of the tumor vasculature, decreased perfusion, and increased tumor cell apoptosis. We observed smaller vessels with tiny lumens and a decrease in the microvessel density. AMD 3100 also inhibited PDGF-B protein expression in vitro and in vivo. SDF-1α in the tumor microenvironment plays a critical role in promoting pericyte formation and Ewing sarcoma tumor neovascularization by regulating PDGF-B expression. Interfering with this pathway affects tumor vascular morphology and expansion.
Collapse
MESH Headings
- Animals
- Benzylamines
- Blotting, Western
- Bone Marrow Cells/metabolism
- Bone Marrow Transplantation/methods
- Cell Differentiation/drug effects
- Cell Line, Tumor
- Cell Survival/drug effects
- Chemokine CXCL12/antagonists & inhibitors
- Chemokine CXCL12/metabolism
- Cyclams
- Down-Regulation
- Female
- Heterocyclic Compounds/pharmacology
- Humans
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Transgenic
- Microscopy, Fluorescence
- Neovascularization, Pathologic/genetics
- Neovascularization, Pathologic/metabolism
- Neovascularization, Pathologic/prevention & control
- Pericytes/metabolism
- Proto-Oncogene Proteins c-sis/metabolism
- Receptors, CXCR4/antagonists & inhibitors
- Receptors, CXCR4/metabolism
- Sarcoma, Ewing/genetics
- Sarcoma, Ewing/metabolism
- Sarcoma, Ewing/prevention & control
- Xenograft Model Antitumor Assays
Collapse
Affiliation(s)
- Randala Hamdan
- Corresponding Author: Eugenie S. Kleinerman, Division of Pediatrics, The University of Texas M.D. Anderson Cancer Center, Houston TX 77030.
| | | | | |
Collapse
|
32
|
Decreased hematopoietic progenitor cell mobilization in pearl mice. Exp Hematol 2013; 41:848-57. [DOI: 10.1016/j.exphem.2013.05.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Revised: 05/14/2013] [Accepted: 05/19/2013] [Indexed: 11/21/2022]
|
33
|
Alvarez P, Carrillo E, Vélez C, Hita-Contreras F, Martínez-Amat A, Rodríguez-Serrano F, Boulaiz H, Ortiz R, Melguizo C, Prados J, Aránega A. Regulatory systems in bone marrow for hematopoietic stem/progenitor cells mobilization and homing. BIOMED RESEARCH INTERNATIONAL 2013; 2013:312656. [PMID: 23844360 PMCID: PMC3703413 DOI: 10.1155/2013/312656] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Revised: 04/22/2013] [Accepted: 05/24/2013] [Indexed: 12/14/2022]
Abstract
Regulation of hematopoietic stem cell release, migration, and homing from the bone marrow (BM) and of the mobilization pathway involves a complex interaction among adhesion molecules, cytokines, proteolytic enzymes, stromal cells, and hematopoietic cells. The identification of new mechanisms that regulate the trafficking of hematopoietic stem/progenitor cells (HSPCs) cells has important implications, not only for hematopoietic transplantation but also for cell therapies in regenerative medicine for patients with acute myocardial infarction, spinal cord injury, and stroke, among others. This paper reviews the regulation mechanisms underlying the homing and mobilization of BM hematopoietic stem/progenitor cells, investigating the following issues: (a) the role of different factors, such as stromal cell derived factor-1 (SDF-1), granulocyte colony-stimulating factor (G-CSF), and vascular cell adhesion molecule-1 (VCAM-1), among other ligands; (b) the stem cell count in peripheral blood and BM and influential factors; (c) the therapeutic utilization of this phenomenon in lesions in different tissues, examining the agents involved in HSPCs mobilization, such as the different forms of G-CSF, plerixafor, and natalizumab; and (d) the effects of this mobilization on BM-derived stem/progenitor cells in clinical trials of patients with different diseases.
Collapse
Affiliation(s)
- P. Alvarez
- Institute of Biopathology and Regenerative Medicine (IBIMER), University of Granada, 18100 Granada, Spain
- Department of Human Anatomy and Embryology, School of Medicine, University of Granada, 18071 Granada, Spain
| | - E. Carrillo
- Institute of Biopathology and Regenerative Medicine (IBIMER), University of Granada, 18100 Granada, Spain
- Department of Human Anatomy and Embryology, School of Medicine, University of Granada, 18071 Granada, Spain
| | - C. Vélez
- Institute of Biopathology and Regenerative Medicine (IBIMER), University of Granada, 18100 Granada, Spain
- Department of Human Anatomy and Embryology, School of Medicine, University of Granada, 18071 Granada, Spain
| | - F. Hita-Contreras
- Institute of Biopathology and Regenerative Medicine (IBIMER), University of Granada, 18100 Granada, Spain
- Department of Health Science, University of Jaén, 23071 Jaén, Spain
| | - A. Martínez-Amat
- Institute of Biopathology and Regenerative Medicine (IBIMER), University of Granada, 18100 Granada, Spain
- Department of Health Science, University of Jaén, 23071 Jaén, Spain
| | - F. Rodríguez-Serrano
- Institute of Biopathology and Regenerative Medicine (IBIMER), University of Granada, 18100 Granada, Spain
- Department of Human Anatomy and Embryology, School of Medicine, University of Granada, 18071 Granada, Spain
| | - H. Boulaiz
- Institute of Biopathology and Regenerative Medicine (IBIMER), University of Granada, 18100 Granada, Spain
- Department of Human Anatomy and Embryology, School of Medicine, University of Granada, 18071 Granada, Spain
| | - R. Ortiz
- Institute of Biopathology and Regenerative Medicine (IBIMER), University of Granada, 18100 Granada, Spain
- Department of Health Science, University of Jaén, 23071 Jaén, Spain
| | - C. Melguizo
- Institute of Biopathology and Regenerative Medicine (IBIMER), University of Granada, 18100 Granada, Spain
- Department of Human Anatomy and Embryology, School of Medicine, University of Granada, 18071 Granada, Spain
| | - J. Prados
- Institute of Biopathology and Regenerative Medicine (IBIMER), University of Granada, 18100 Granada, Spain
- Department of Human Anatomy and Embryology, School of Medicine, University of Granada, 18071 Granada, Spain
| | - A. Aránega
- Institute of Biopathology and Regenerative Medicine (IBIMER), University of Granada, 18100 Granada, Spain
- Department of Human Anatomy and Embryology, School of Medicine, University of Granada, 18071 Granada, Spain
| |
Collapse
|
34
|
Huang J, Li Y, Tang Y, Tang G, Yang GY, Wang Y. CXCR4 Antagonist AMD3100 Protects Blood–Brain Barrier Integrity and Reduces Inflammatory Response After Focal Ischemia in Mice. Stroke 2013; 44:190-7. [DOI: 10.1161/strokeaha.112.670299] [Citation(s) in RCA: 161] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background and Purpose—
Inflammatory response plays a critical role in propagating tissue damage after focal cerebral ischemia. CXCL12 is a key chemokine for leukocyte recruitment. However, the role of CXCL12 and its receptor CXCR4 in ischemia-induced inflammatory response is unclear. Here we use the pharmacological antagonist of CXCR4, AMD3100, to investigate the function of CXCL12/CXCR4 in regulating inflammatory response during acute ischemia.
Methods—
Adult male CD-1 mice (n=184) underwent permanent suture middle cerebral artery occlusion (MCAO). AMD3100 was injected for 3 days (1 mg/kg/day) after MCAO. Brain water content, infarct volume, neurological score, and myeloperoxidase (MPO) expression and activity were examined at 24, 48, and 72 hours after MCAO. Proinflammatory cytokine RNA and protein levels in brain tissue were measured by RT-PCR and enzyme linked immunosorbent assay.
Results—
Neurological score was greatly improved in AMD3100-treated mice compared with the control mice 3 days after MCAO (
P
<0.05). Brain edema–induced change of water content, IgG protein leakage, Evans blue extravasation, occludin, and ZO-1 expression in ipsilateral hemisphere were alleviated by acute treatment of AMD3100. MPO expression and activity revealed that AMD3100 profoundly reduced the number of MPO-positive cells in the ischemic region (
P
<0.05). It also attenuated proinflammatory cytokines including interleukin 6, tumor necrosis factor α, and interferon γ; their mRNA and protein levels changed accordingly compared with the controls (
P
<0.05).
Conclusions—
CXCR4 antagonist AMD3100 significantly suppressed inflammatory response and reduced blood–brain barrier disruption after MCAO. AMD3100 attenuated ischemia-induced acute inflammation by suppressing leukocyte migration and infiltration, in addition to reducing proinflammatory cytokine expression in the ischemic region.
Collapse
Affiliation(s)
- Jun Huang
- From the Neuroscience and Neuroengineering Research Center, Med-X Research Institute and School of Biomedical Engineering (J.H., Y.L., Y.T., G.T., G.-Y.Y., Y.W.) and the Department of Neurology, Ruijin Hospital, School of Medicine (G.-Y.Y.), Shanghai Jiao Tong University, Shanghai China
| | - Yaning Li
- From the Neuroscience and Neuroengineering Research Center, Med-X Research Institute and School of Biomedical Engineering (J.H., Y.L., Y.T., G.T., G.-Y.Y., Y.W.) and the Department of Neurology, Ruijin Hospital, School of Medicine (G.-Y.Y.), Shanghai Jiao Tong University, Shanghai China
| | - Yaohui Tang
- From the Neuroscience and Neuroengineering Research Center, Med-X Research Institute and School of Biomedical Engineering (J.H., Y.L., Y.T., G.T., G.-Y.Y., Y.W.) and the Department of Neurology, Ruijin Hospital, School of Medicine (G.-Y.Y.), Shanghai Jiao Tong University, Shanghai China
| | - Guanghui Tang
- From the Neuroscience and Neuroengineering Research Center, Med-X Research Institute and School of Biomedical Engineering (J.H., Y.L., Y.T., G.T., G.-Y.Y., Y.W.) and the Department of Neurology, Ruijin Hospital, School of Medicine (G.-Y.Y.), Shanghai Jiao Tong University, Shanghai China
| | - Guo-Yuan Yang
- From the Neuroscience and Neuroengineering Research Center, Med-X Research Institute and School of Biomedical Engineering (J.H., Y.L., Y.T., G.T., G.-Y.Y., Y.W.) and the Department of Neurology, Ruijin Hospital, School of Medicine (G.-Y.Y.), Shanghai Jiao Tong University, Shanghai China
| | - Yongting Wang
- From the Neuroscience and Neuroengineering Research Center, Med-X Research Institute and School of Biomedical Engineering (J.H., Y.L., Y.T., G.T., G.-Y.Y., Y.W.) and the Department of Neurology, Ruijin Hospital, School of Medicine (G.-Y.Y.), Shanghai Jiao Tong University, Shanghai China
| |
Collapse
|
35
|
CXCR4 inhibitors selectively eliminate CXCR4-expressing human acute myeloid leukemia cells in NOG mouse model. Cell Death Dis 2012; 3:e396. [PMID: 23034331 PMCID: PMC3481125 DOI: 10.1038/cddis.2012.137] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The chemokine receptor CXCR4 favors the interaction of acute myeloid leukemia (AML) cells with their niche but the extent to which it participates in pathogenesis is unclear. Here, we show that CXCR4 expression at the surface of leukemic cells allowed distinguishing CXCR4high from CXCR4neg/low AML patients. When high levels of CXCR4 are expressed at the surface of AML cells, blocking the receptor function with small molecule inhibitors could promote leukemic cell death and reduce NOD/Shi-scid/IL-2Rγnull (NOG) leukemia-initiating cells (LICs). Conversely, these drugs had no efficacy when AML cells do not express CXCR4 or when they do not respond to chemokine CXC motif ligand 12 (CXCL12). Functional analysis showed a greater mobilization of leukemic cells and LICs in response to drugs, suggesting that they target the interaction between leukemic cells and their supportive bone marrow microenvironment. In addition, increased apoptosis of leukemic cells in vitro and in vivo was observed. CXCR4 expression level on AML blast cells and their migratory response to CXCL12 are therefore predictive of the response to the inhibitors and could be used as biomarkers to select patients that could potentially benefit from the drugs.
Collapse
|
36
|
Herbert KE, Gambell P, Link EK, Mouminoglu A, Wall DM, Harrison SJ, Ritchie DS, Seymour JF, Prince HM. Pegfilgrastim compared with filgrastim for cytokine-alone mobilization of autologous haematopoietic stem and progenitor cells. Bone Marrow Transplant 2012; 48:351-6. [PMID: 22858510 DOI: 10.1038/bmt.2012.145] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Haematopoietic stem and progenitor cells (HSPC) mobilization, using cytokine-alone, is a well-tolerated regimen with predictable mobilization kinetics. Single-dose pegfilgrastim mobilizes HSPC efficiently; however, there is surprisingly little comparative data on its use without chemotherapy for HSPC mobilization. Pegfilgrastim-alone and filgrastim-alone mobilization regimens were compared in 52 patients with haematological malignancy. Pegfilgrastim 12 mg (n=20) or 6 mg (n=2) was administered Day 1 (D1) in 22 patients (lymphoma n=17; myeloma n=5). Thirty historical controls (lymphoma n=18; myeloma n=12) received filgrastim 10 mcg/kg daily from D1. Peripheral blood (PB) CD34(+) counts reached threshold (5 × 10(6)/L) and apheresis commenced on D4(4-5) and D4(4-6). Median PB CD34(+) cell count on D1 of apheresis was similar (26.0 × 10(6)/L (2.5-125.0 × 10(6)/L) and 16.2 × 10(6)/L (2.6-50.7 × 10(6)/L); P=0.06), for pegfilgrastim and filgrastim groups, respectively. Target yield (2 × 10(6) per kg CD34(+) cells) was collected in 20/22 (91%) pegfilgrastim patients and 24/30 (80%) in the filgrastim group (P=0.44), in a similar median number of aphereses (3(1-4) versus 3(2-6), respectively; P=0.85). A higher proportion of pegfilgrastim patients tended to yield 4 × 10(6) per kg CD34(+) cells; 16/22 (73%) versus 14/30 (47%) filgrastim patients (P=0.09). One pegfilgrastim patient developed hyperleukocytosis that resolved without incident. Pegfilgrastim-alone is a simple, well-tolerated, and attractive option for outpatient-based HSPC mobilization with similar mobilization kinetics and efficacy to regular filgrastim.
Collapse
Affiliation(s)
- K E Herbert
- Department of Haematology and Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia.
| | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Macanas-Pirard P, Leisewitz A, Broekhuizen R, Cautivo K, Barriga FM, Leisewitz F, Gidi V, Riquelme E, Montecinos VP, Swett P, Besa P, Ramirez P, Ocqueteau M, Kalergis AM, Holt M, Rettig M, DiPersio JF, Nervi B. Bone marrow stromal cells modulate mouse ENT1 activity and protect leukemia cells from cytarabine induced apoptosis. PLoS One 2012; 7:e37203. [PMID: 22629369 PMCID: PMC3358339 DOI: 10.1371/journal.pone.0037203] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2011] [Accepted: 04/16/2012] [Indexed: 01/05/2023] Open
Abstract
Background Despite a high response rate to chemotherapy, the majority of patients with acute myeloid leukemia (AML) are destined to relapse due to residual disease in the bone marrow (BM). The tumor microenvironment is increasingly being recognized as a critical factor in mediating cancer cell survival and drug resistance. In this study, we propose to identify mechanisms involved in the chemoprotection conferred by the BM stroma to leukemia cells. Methods Using a leukemia mouse model and a human leukemia cell line, we studied the interaction of leukemia cells with the BM microenvironment. We evaluated in vivo and in vitro leukemia cell chemoprotection to different cytotoxic agents mediated by the BM stroma. Leukemia cell apoptosis was assessed by flow cytometry and western blotting. The activity of the equilibrative nucleoside transporter 1 (ENT1), responsible for cytarabine cell incorporation, was investigated by measuring transport and intracellular accumulation of 3H-adenosine. Results Leukemia cell mobilization from the bone marrow into peripheral blood in vivo using a CXCR4 inhibitor induced chemo-sensitization of leukemia cells to cytarabine, which translated into a prolonged survival advantage in our mouse leukemia model. In vitro, the BM stromal cells secreted a soluble factor that mediated significant chemoprotection to leukemia cells from cytarabine induced apoptosis. Furthermore, the BM stromal cell supernatant induced a 50% reduction of the ENT1 activity in leukemia cells, reducing the incorporation of cytarabine. No protection was observed when radiation or other cytotoxic agents such as etoposide, cisplatin and 5-fluorouracil were used. Conclusion The BM stroma secretes a soluble factor that significantly protects leukemia cells from cytarabine-induced apoptosis and blocks ENT1 activity. Strategies that modify the chemo-protective effects mediated by the BM microenvironment may enhance the benefit of conventional chemotherapy for patients with AML.
Collapse
MESH Headings
- Animals
- Antimetabolites, Antineoplastic/pharmacology
- Antimetabolites, Antineoplastic/therapeutic use
- Apoptosis/drug effects
- Apoptosis/physiology
- Bone Marrow Cells/drug effects
- Bone Marrow Cells/metabolism
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Cell Survival/drug effects
- Cytarabine/pharmacology
- Cytarabine/therapeutic use
- Equilibrative Nucleoside Transporter 1/metabolism
- Humans
- Leukemia, Myeloid, Acute/drug therapy
- Leukemia, Myeloid, Acute/metabolism
- Leukemia, Myeloid, Acute/pathology
- Mice
- Stromal Cells/drug effects
- Stromal Cells/metabolism
- Tumor Cells, Cultured
Collapse
Affiliation(s)
- Patricia Macanas-Pirard
- Departamento de Hematología y Oncología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Andrea Leisewitz
- Departamento de Hematología y Oncología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Richard Broekhuizen
- Departamento de Hematología y Oncología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Kelly Cautivo
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Francisco M. Barriga
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Francisco Leisewitz
- Departamento de Hematología y Oncología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Victoria Gidi
- Departamento de Hematología y Oncología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Erick Riquelme
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Viviana P. Montecinos
- Departamento de Hematología y Oncología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pilar Swett
- Departamento de Hematología y Oncología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pelayo Besa
- Departamento de Hematología y Oncología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo Ramirez
- Departamento de Hematología y Oncología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Mauricio Ocqueteau
- Departamento de Hematología y Oncología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alexis M. Kalergis
- Departamento de Reumatología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Matthew Holt
- Oncology Division, Washington University School of Medicine, Saint Louis, Missouri, United States of America
| | - Michael Rettig
- Oncology Division, Washington University School of Medicine, Saint Louis, Missouri, United States of America
| | - John F. DiPersio
- Oncology Division, Washington University School of Medicine, Saint Louis, Missouri, United States of America
| | - Bruno Nervi
- Departamento de Hematología y Oncología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
- * E-mail:
| |
Collapse
|
38
|
Gawronski K, Rzepecki P, Oborska S, Wasko-Grabowska A. Hematologic recovery in patients who are treated with autologous stem cells transplantation taken from bone marrow after granulocyte-colony-stimulating factor stimulation. Transplant Proc 2012; 43:3114-5. [PMID: 21996240 DOI: 10.1016/j.transproceed.2011.08.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND We sought to compare hematologic recovery between patients who did or did not receive granulocyte-colony-stimulating factor (G-CSF)-stimulated bone marrow (rich bone marrow [RBM]). MATERIALS AND METHODS The study subjects were 20 patients whose bone marrow was taken without prior stimulation with G-CSF and 15 patients in whom bone marrow was taken after previous G-CSF mobilization. The bone marrow harvest took place on the fifth day after G-CSF initiation. The bone marrow aliquot was 20 mL/kg. RESULTS The median value of nucleated cells obtained from patients without G-CSF preparation was 3.65×10(8)/kg. The median value of nucleated cells from RBM patients was 4.83×10(8)/kg. The median value of stem cells obtained from patients without G-CSF preparation was 0.96×10(6)/kg versus 1.9×10(6)/kg from RBM patients. The median time to recovery of the hematopoietic system based on an increase in PLT value>20 g/L was 12.6 days for RBM versus 18.8 days without G-CSF preparation. The median time to recovery of the hematopoietic system based on assessment of growth ANC>0.5 g/L was 13.0 days for RBM versus 17.8 days without G-CSF stimulation. Significantly higher values of nucleated cells and increased stem cells were observed among RBM patients compared with those whose bone marrow was harvested without any stimulation (P=.01). There was faster recovery of the hematopoietic system in cases where bone marrow was collected after G-CSF: PLT>20 g/L (P=.015) and ANC>0.5 g/L (P=.01). We also observed that the use of stimulated bone marrow shortened hospital stay after the administration of hematopoietic cells to 17.3 days compared with 23.1 days among patients receiving hematopoietic cells from nonstimulated bone marrow. The number of complications during transplantation was comparable in both cases, the most frequent ones being febrile neutropenia and grade III and IV mucositis. CONCLUSION RBM is a better method to obtain stem cells from bone marrow. Stimulated bone marrow shows faster engraftment compared with nonstimulated bone marrow helping patients who fail to generate are adequate number of stem cells from peripheral blood.
Collapse
Affiliation(s)
- K Gawronski
- Bone Marrow Transplantation Unit, Department of Oncology, Military Institute of Medicine, Warsaw, Poland.
| | | | | | | |
Collapse
|
39
|
Melancon BJ, Hopkins CR, Wood MR, Emmitte KA, Niswender CM, Christopoulos A, Conn PJ, Lindsley CW. Allosteric modulation of seven transmembrane spanning receptors: theory, practice, and opportunities for central nervous system drug discovery. J Med Chem 2012; 55:1445-64. [PMID: 22148748 DOI: 10.1021/jm201139r] [Citation(s) in RCA: 180] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Bruce J Melancon
- Department of Pharmacology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, United States
| | | | | | | | | | | | | | | |
Collapse
|
40
|
Chigaev A, Winter SS, Sklar LA. Is prolonged stem cell mobilization detrimental for hematopoiesis? Med Hypotheses 2011; 77:1111-3. [PMID: 21963354 DOI: 10.1016/j.mehy.2011.09.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2011] [Accepted: 09/08/2011] [Indexed: 01/08/2023]
Abstract
Multiple hematological side effects have been reported to result from treatment with psychoactive phenothiazines. These reported toxicities include leucopenia, granulocytopenia, thrombocytopenia, agranulocytosis, and bone marrow aplasia. The physiological mechanism causing these potentially life-threatening blood dyscrasias is unknown. Recently, we discovered that phenothiazines exhibit antagonistic properties towards the VLA-4 integrin, an adhesion molecule that is responsible for homing and retention of hematological stem/progenitor cells (HSPCs) in the bone marrow. After administration of thioridazine we detected rapid mobilization of HSPCs into the peripheral blood. We propose that in patients receiving phenothiazines over a prolonged time period, continuous mobilization of stem cells out of the stem cell niche, results in a disorder of hematopoiesis. Furthermore, we also postulate that such cytopenias are caused by a loss of the niche environment, which is known to be essential for stem cell maintenance.
Collapse
Affiliation(s)
- Alexandre Chigaev
- Department of Pathology and Cancer Center, University of New Mexico, Albuquerque, NM 87131, United States.
| | | | | |
Collapse
|
41
|
Kilpatrick LA, Zhu J, Lee FS, Lang H. Role of stromal cell-derived factor-1 expression in the injured mouse auditory nerve. Otolaryngol Head Neck Surg 2011; 145:1007-15. [PMID: 21947792 DOI: 10.1177/0194599811416778] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVE The degeneration of hair cells and spiral ganglion neurons (SGNs) is an important pathologic process in the development of sensorineural hearing loss. In a murine model, predictable and reproducible damage to SGNs occurs through the application of ouabain to the round window. Recent evidence has shown that the chemokine stromal cell-derived factor-1 (SDF-1) is a potent chemoattractant of hematopoietic stem cells (HSCs) and provides trophic support to injured tissues during development and maturation. The hypothesis for the current study is that expression of SDF-1 plays an important role in protecting SGNs and preventing further degeneration in the setting of cochlear injury. STUDY DESIGN Prospective, controlled. SETTING Academic research laboratory. SUBJECT AND METHODS Auditory brainstem response (ABR) and the expression of SDF-1 mRNA and protein were examined 1, 3, 7, 14, and 30 days after application of ouabain in 35 adult mice. RESULTS Following ouabain application, real-time reverse-transcription polymerase chain reaction for SDF demonstrates increased mRNA expression following ouabain injury in nontransplanted mice. A significant increase in SDF protein expression was also observed using immunolabeling techniques and Western blot analysis. CONCLUSIONS SDF-1 expression is increased in the auditory nerve following cochlear injury. Further knowledge about the cochlear microenvironment, including SDF-1, is critical to maximizing HSC engraftment in the injured cochlea and providing a therapeutic option for sensorineural hearing loss.
Collapse
Affiliation(s)
- Lauren A Kilpatrick
- Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, South Carolina 29425, USA.
| | | | | | | |
Collapse
|
42
|
Chen Y, Fukuda T, Thakar MS, Kornblit BT, Storer BE, Santos EB, Storb R, Sandmaier BM. Immunomodulatory effects induced by cytotoxic T lymphocyte antigen 4 immunoglobulin with donor peripheral blood mononuclear cell infusion in canine major histocompatibility complex-haplo-identical non-myeloablative hematopoietic cell transplantation. Cytotherapy 2011; 13:1269-80. [PMID: 21846291 DOI: 10.3109/14653249.2011.586997] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND AIMS. Previously, cytotoxic T lymphocyte antigen 4 (CTLA4) immunoglobulin (Ig) has been shown to allow sustained engraftment in dog leukocyte antigen (DLA)-identical hematopoietic cell transplant (HCT) after non-myeloablative conditioning with 100 cGy total body irradiation (TBI). In the current study, we investigated the efficacy of pre-transplant CTLA4-Ig in promoting engraftment across a DLA-mismatched barrier after non-myeloablative conditioning. METHODS. Eight dogs were treated with CTLA4-Ig and donor peripheral blood mononuclear cells (PBMC) prior to receiving 200 cGy TBI followed by transplantation of granulocyte-colony-stimulating factor (G-CSF) mobilized peripheral blood stem cells from DLA haplo-identical littermates with post-grafting immunosuppression. A control group of six dogs was conditioned with 200 cGy only and transplanted with grafts from DLA haplo-identical littermates followed by post-grafting immunosuppression. RESULTS. In vitro and in vivo donor-specific hyporesponsiveness was demonstrated on day 0 before TBI in eight dogs that received CTLA4-Ig combined with donor PBMC infusions. Four of five dogs treated with increased doses of CTLA4-Ig achieved initial engraftment but eventually rejected, with a duration of mixed chimerism ranging from 12 to 22 weeks. CTLA4-Ig did not show any effect on host natural killer (NK) cell function in vitro or in vivo. No graft-versus-host disease (GvHD) was observed in dogs receiving CTLA4-Ig treatment. CONCLUSIONS. Non-myeloablative conditioning with 200 cGy TBI and CTLA4-Ig combined with donor PBMC infusion was able to overcome the T-cell barrier to achieve initial engraftment without GvHD in dogs receiving DLA haplo-identical grafts. However, rejection eventually occurred; we hypothesize because of the inability of CTLA4-Ig to abate natural killer cell function.
Collapse
Affiliation(s)
- Yun Chen
- Clinical Research Division, Fred Hutchinson Cancer Research Center , Seattle, Washington , USA
| | | | | | | | | | | | | | | |
Collapse
|
43
|
Burger JA, Stewart DJ, Wald O, Peled A. Potential of CXCR4 antagonists for the treatment of metastatic lung cancer. Expert Rev Anticancer Ther 2011; 11:621-30. [PMID: 21504328 DOI: 10.1586/era.11.11] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Despite advances in surgery, chemotherapy and radiotherapy over the last decades, the death rate from lung cancer has remained largely unchanged, which is mainly due to metastatic disease. Because of the overall poor prognosis, new treatment strategies for lung cancer patients are urgently needed, and targeting CXCR4 constitutes such a novel, attractive strategy. Tumor cell migration and metastasis share many similarities with leukocyte trafficking, which is critically regulated by chemokine receptors and adhesion molecules. Lung cancer cells express CXCR4 (CD184), a seven-transmembrane G-protein-coupled chemokine receptor. Stromal cells within the tumor microenvironment constitutively secrete stromal cell-derived factor-1 (SDF-1/CXCL12), the ligand for CXCR4. Activation of CXCR4 induces lung cancer cell migration and adhesion to stromal cells, which in turn provides growth- and drug-resistance signals to the tumor cells. CXCR4 antagonists, such as Plerixafor (AMD3100) and T140 analogues (TN14003/BKT140), can disrupt CXCR4-mediated tumor cell adhesion to stromal cells and sensitize lung cancer cells to cytotoxic drugs. Therefore, targeting the CXCR4-CXCL12 axis is a novel, attractive therapeutic approach in small-cell lung cancer and non-small-cell lung cancer. In this article, we summarize data about the cellular and molecular microenvironment in small-cell lung cancer and non-small-cell lung cancer, as well as the role of CXCR4 in tumor-stroma crosstalk. In addition, we review the current status of the preclinical and clinical development of CXCR4 antagonists.
Collapse
Affiliation(s)
- Jan A Burger
- Department of Leukemia, Unit 428, The University of Texas MD Anderson Cancer Center, PO Box 301402, Houston, TX 77230-1402, USA.
| | | | | | | |
Collapse
|
44
|
|
45
|
Greco SJ, Rameshwar P. Microenvironmental considerations in the application of human mesenchymal stem cells in regenerative therapies. Biologics 2011; 2:699-705. [PMID: 19707450 PMCID: PMC2727904 DOI: 10.2147/btt.s2765] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The therapeutic utilization of stem cells has been ongoing for several decades, principally in the form of bone marrow (BM) transplants to treat various hematological disorders and other immune-related diseases. More recently, stem cells have been examined as a potential therapy for a multitude of other diseases and disorders, many of which are currently untreatable. One consideration that poses a formidable task for the successful clinical application of stem cells in new disease models is the impact of the host tissue microenvironment on the desired therapeutic outcome. In vitro, stem cells exist in surroundings directly controllable by the researcher to produce the desired cellular behavior. In vivo, the transplanted cells are exposed to a dynamic host microenvironment laden with soluble mediators and immunoreactive cells. In this review, we focus on the possible contribution by microenvironmental factors, and how these influences can be overcome in therapies utilizing mesenchymal stem cells (MSCs), such as for graft versus host disease, multiple sclerosis and ischemia among others. Specifically, we examine three ubiquitous microenvironmental factors, IL-1alpha/beta(,) TNFalpha, and SDF-1alpha, and consider how inhibitors and receptor antagonists to these molecules could be applied to increase the efficacy of MSC therapies while minimizing unforeseen harm to the patient.
Collapse
|
46
|
Mohty M, Ho AD. In and out of the niche: perspectives in mobilization of hematopoietic stem cells. Exp Hematol 2011; 39:723-9. [PMID: 21624427 DOI: 10.1016/j.exphem.2011.05.004] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2011] [Revised: 04/23/2011] [Accepted: 05/02/2011] [Indexed: 01/01/2023]
Abstract
Several stem cell mobilization strategies have been employed in the past 2 decades, including chemotherapy, hematopoietic growth factors, and chemotherapy plus growth factors. Granulocyte colony-stimulating factor (G-CSF) and granulocyte-macrophage CSF are standard agents approved for peripheral blood stem cell mobilization since the early 1990s. Between 5% and 20% of patients, however, fail to mobilize a sufficient numbers of peripheral blood stem cells in response to G-CSF with or without chemotherapy. Recent advances in defining the basic mechanisms regulating the interactions between hematopoietic stem cells and their marrow niche had led to the discovery that CXCR4 and stromal-cell-derived factor 1α axis play a significant role. Plerixafor, an antagonist of the CXCR4-stromal-cell-derived factor 1α axis has been shown to result in a significant mobilization of hematopoietic stem cells. Numerous clinical trials have demonstrated that the combination of G-CSF and AMD3100 (G+A) resulted in a significant increase in CD34(+) cell yield as compared to the administration of G-CSF alone. In particular, the progenitors mobilized have been shown to comprise a significantly higher proportion of primitive and possibly more potent CD34(+)/CD38(-) subpopulation. Transplantation of PBSC mobilized by G+A administration have led to a rapid and sustained neutrophil and platelet engraftment. Another prospective role of this new class of agents might lie in the mobilization of dormant leukemia stem cells that are well protected by the niche. The future role of CXCR4 antagonists in treatment of hematologic malignancies includes mobilization of hematopoietic stem cells for transplantation and mobilization of leukemia-initiating cells for long-term cure.
Collapse
Affiliation(s)
- Mohamad Mohty
- Centre Hospitalier et Universitaire (CHU) de Nantes, Hématologie Clinique, Nantes, France.
| | | |
Collapse
|
47
|
Vose JM, Ho AD, Coiffier B, Corradini P, Khouri I, Sureda A, Van Besien K, Dipersio J. Advances in mobilization for the optimization of autologous stem cell transplantation. Leuk Lymphoma 2011; 50:1412-21. [PMID: 19603345 DOI: 10.1080/10428190903096701] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In autologous stem cell transplantation, mobilized peripheral blood has replaced the bone marrow as the preferred source of hematopoietic stem cells (HSCs). Because HSCs normally exist in the blood in very low numbers, the use of agents to "mobilize" HSCs from the marrow niche to the peripheral blood is essential for successful transplantation. Until recently, granulocyte colony-stimulating factor (G-CSF) and granulocyte-macrophage colony-stimulating factor were the only approved agents by the US Food and Drug Administration for use as peripheral blood stem cell (PBSC)-mobilizing agents in the United States, but G-CSF has become the gold standard. Unfortunately, some patients fail to mobilize sufficient numbers of PBSCs for transplantation in response to G-CSF with or without chemotherapy. Recently, a new agent, plerixafor (AMD3100) added to G-CSF has been approved to enhance PBSC mobilization. This review will discuss the current methodologies to improve hematopoietic stem cell mobilization.
Collapse
Affiliation(s)
- Julie M Vose
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198-7680, USA.
| | | | | | | | | | | | | | | |
Collapse
|
48
|
Ozkurt ZN, Yegin ZA, Suyani E, Aki SZ, Acar K, Yagci M, Sucak GT. Factors affecting stem cell mobilization for autologous hematopoietic stem cell transplantation. J Clin Apher 2011; 25:280-6. [PMID: 20623783 DOI: 10.1002/jca.20246] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
High-dose chemotherapy with autologous stem cell transplantation (ASCT) is curative treatment in various hematologic malignancies. Mobilization and collection of peripheral blood stem cell is the essential part of ASCT. The aim of this study was to evaluate the effectiveness of various mobilization regimens, determine the risk factors associated with mobilization failure (MF). We also investigated whether iron overload, which has an adverse impact on various aspects of HSCT including overall survival had any impact on mobilization kinetics. A total of 118 consecutive patients were included in this study. The rate of MF was 11.8 % with the first mobilization regimen. Frequency of MF was higher in lymphoma (P < 0.001) patients and in those receiving G-CSF alone (P= 0.01). Peripheral CD34+ cell count (P < 0.001), bone marrow cellularity (P < 0.001), reticulin fibrosis (P < 0.05) were significantly lower whereas serum ferritin levels (P = 0.06) tended to be higher in patients with MF. CD34+ cell count of the first apheresis product was positively correlated with the white blood cell count (P < 0.05; r = 0.232), platelet count (P = 0.01; r = 0.233), peripheral CD34+ cell count (P < 0.001; r = 0.704) and the grade of bone marrow reticulin fibrosis (P < 0.001; r = 0.366). Serum ferritin levels were negatively correlated with maximum peripheral CD34+ cell count (P = 0.02; r = -0.216) and the CD34+ cell count in the first product (P = 0.05; r = -0.183). Platelet count (P = 0.03; β = 0.262), peripheral CD34+ cell count (P = 0.02; β=0.279) were the two variables which remained to be significant in multivariate analysis. Predicting the poor mobilizers with the platelet count for instance may reduce the risk of MF by using more effective regimens in advance.
Collapse
Affiliation(s)
- Zübeyde Nur Ozkurt
- Department of Hematology, Faculty of Medicine, Gazi University, Ankara, Turkey
| | | | | | | | | | | | | |
Collapse
|
49
|
Sharma M, Afrin F, Satija N, Tripathi RP, Gangenahalli GU. Stromal-derived factor-1/CXCR4 signaling: indispensable role in homing and engraftment of hematopoietic stem cells in bone marrow. Stem Cells Dev 2011; 20:933-46. [PMID: 21186999 DOI: 10.1089/scd.2010.0263] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Homing and engraftment of hematopoietic stem/progenitor cells (HSPCs) in bone marrow is the major determining factor in success of hematopoietic stem cell transplantation. This is a complex, multistep process orchestrated by the coordinated interplay between adhesion molecules, cytokines, growth factors, and regulatory cofactors, many of which remain to be defined. Recent studies have highlighted the pivotal role of unique stromal-derived factor-1 (SDF-1)/CXCR4 signaling in the regulation of HSPC homing and subsequent engraftment. In addition, studies suggest that SDF-1/CXCR4 signaling acts as an essential survival-promoting factor of transplanted HSPCs as well as maintenance of quiescent HSCs in bone marrow niche. These pleiotropic effects exerted by SDF-1/CXCR4 axis make this unique signaling initiator very promising, not only for optimal hematopoietic reconstitution but also for the development of innovative approaches to achieve restoration, regeneration, or repair of other damaged tissues potentially amendable to reversal by stem cell transplantation. This goal can only be achieved when the role of SDF-1/CXCR4 axis in hematopoietic transplantation is clearly defined. Hence, this review presents current knowledge of the mechanisms through which SDF-1/CXCR4 signaling promotes restoration of hematopoiesis by regulating the homing and engraftment of HSPCs.
Collapse
Affiliation(s)
- Menka Sharma
- Stem Cell and Gene Therapy Research Group, Division of Radiation Biosciences, Institute of Nuclear Medicine and Allied Sciences, Defense Research and Development Organization, New Delhi, India
| | | | | | | | | |
Collapse
|
50
|
Bouchlaka MN, Redelman D, Murphy WJ. Immunotherapy following hematopoietic stem cell transplantation: potential for synergistic effects. Immunotherapy 2010; 2:399-418. [PMID: 20635904 DOI: 10.2217/imt.10.20] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Hematopoietic stem cell transplantation (HSCT) is a particularly important treatment for hematologic malignancies. Unfortunately, following allogeneic HSCT, graft-versus-host disease, immunosuppression and susceptibility to opportunistic infections remain among the most substantial problems restricting the efficacy and use of this procedure, particularly for cancer. Adoptive immunotherapy and/or manipulation of the graft offer ways to attack residual cancer as well as other transplant-related complications. Recent exciting discoveries have demonstrated that HSCT could be expanded to solid tissue cancers with profound effects on the effectiveness of adoptive immunotherapy. This review will provide a background regarding HSCT, discuss the complications that make it such a complex treatment procedure following up with current immunotherapeutic strategies and discuss emerging approaches in applying immunotherapy in HSCT for cancer.
Collapse
Affiliation(s)
- Myriam N Bouchlaka
- Department of Microbiology & Immunology, University of Nevada, Reno, NV, USA
| | | | | |
Collapse
|