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Palisoc M, Gestl S, Gunther E. Elucidating
PIK3CA
‐cooperating mutations in breast cancer using an inducible and mammary‐specific genetic mutagenesis system. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.r2907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Maryknoll Palisoc
- Gittlen Laboratories for Cancer ResearchPenn State College of MedicineHersheyPA
| | - Shelley Gestl
- Gittlen Laboratories for Cancer ResearchPenn State College of MedicineHersheyPA
| | - Edward Gunther
- Gittlen Laboratories for Cancer ResearchPenn State College of MedicineHersheyPA
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2
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Koscsó B, Kurapati S, Rodrigues RR, Nedjic J, Gowda K, Shin C, Soni C, Ashraf AZ, Purushothaman I, Palisoc M, Xu S, Sun H, Chodisetti SB, Lin E, Mack M, Kawasawa YI, He P, Rahman ZSM, Aifantis I, Shulzhenko N, Morgun A, Bogunovic M. Gut-resident CX3CR1 hi macrophages induce tertiary lymphoid structures and IgA response in situ. Sci Immunol 2020; 5:5/46/eaax0062. [PMID: 32276965 DOI: 10.1126/sciimmunol.aax0062] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 12/27/2019] [Accepted: 02/28/2020] [Indexed: 12/12/2022]
Abstract
Intestinal mononuclear phagocytes (MPs) are composed of heterogeneous dendritic cell (DC) and macrophage subsets necessary for the initiation of immune response and control of inflammation. Although MPs in the normal intestine have been extensively studied, the heterogeneity and function of inflammatory MPs remain poorly defined. We performed phenotypical, transcriptional, and functional analyses of inflammatory MPs in infectious Salmonella colitis and identified CX3CR1+ MPs as the most prevalent inflammatory cell type. CX3CR1+ MPs were further divided into three distinct populations, namely, Nos2 +CX3CR1lo, Ccr7 +CX3CR1int (lymph migratory), and Cxcl13 +CX3CR1hi (mucosa resident), all of which were transcriptionally aligned with macrophages and derived from monocytes. In follow-up experiments in vivo, intestinal CX3CR1+ macrophages were superior to conventional DC1 (cDC1) and cDC2 in inducing Salmonella-specific mucosal IgA. We next examined spatial organization of the immune response induced by CX3CR1+ macrophage subsets and identified mucosa-resident Cxcl13 +CX3CR1hi macrophages as the antigen-presenting cells responsible for recruitment and activation of CD4+ T and B cells to the sites of Salmonella invasion, followed by tertiary lymphoid structure formation and the local pathogen-specific IgA response. Using mice we developed with a floxed Ccr7 allele, we showed that this local IgA response developed independently of migration of the Ccr7 +CX3CR1int population to the mesenteric lymph nodes and contributed to the total mucosal IgA response to infection. The differential activity of intestinal macrophage subsets in promoting mucosal IgA responses should be considered in the development of vaccines to prevent Salmonella infection and in the design of anti-inflammatory therapies aimed at modulating macrophage function in inflammatory bowel disease.
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Affiliation(s)
- Balázs Koscsó
- Department of Pathology, University of Massachusetts Medical School, Worcester, MA, USA
| | - Sravya Kurapati
- Department of Pathology, University of Massachusetts Medical School, Worcester, MA, USA.,Biomedical Sciences PhD Program, Penn State University College of Medicine, Hershey, PA, USA
| | | | - Jelena Nedjic
- Department of Pathology and Laura and Isaac Perlmutter Cancer Center, NYU School of Medicine, New York, NY, USA
| | - Kavitha Gowda
- Department of Microbiology and Immunology, Penn State University College of Medicine, Hershey, PA, USA
| | - Changsik Shin
- Department of Microbiology and Immunology, Penn State University College of Medicine, Hershey, PA, USA
| | - Chetna Soni
- Department of Microbiology and Immunology, Penn State University College of Medicine, Hershey, PA, USA
| | - Azree Zaffran Ashraf
- Department of Pathology, University of Massachusetts Medical School, Worcester, MA, USA
| | - Indira Purushothaman
- PhD Program in Anatomy at Penn State College of Medicine, Penn State University College of Medicine, Hershey, PA, USA
| | - Maryknoll Palisoc
- MD/PhD Medical Scientist Training Program, Penn State University College of Medicine, Hershey, PA, USA
| | - Sulei Xu
- Department of Cellular and Molecular Physiology, Penn State University College of Medicine, Hershey, PA, USA
| | - Haoyu Sun
- Department of Cellular and Molecular Physiology, Penn State University College of Medicine, Hershey, PA, USA
| | - Sathi Babu Chodisetti
- Department of Microbiology and Immunology, Penn State University College of Medicine, Hershey, PA, USA
| | - Eugene Lin
- Department of Pathology, University of Massachusetts Medical School, Worcester, MA, USA
| | - Matthias Mack
- Department of Internal Medicine/Nephrology, University Hospital Regensburg, Regensburg, Germany
| | - Yuka Imamura Kawasawa
- Department of Pharmacology and Biochemistry and Molecular Biology, Institute of Personalized Medicine, Penn State University College of Medicine, Hershey, PA, USA
| | - Pingnian He
- Department of Cellular and Molecular Physiology, Penn State University College of Medicine, Hershey, PA, USA
| | - Ziaur S M Rahman
- Department of Microbiology and Immunology, Penn State University College of Medicine, Hershey, PA, USA
| | - Iannis Aifantis
- Department of Pathology and Laura and Isaac Perlmutter Cancer Center, NYU School of Medicine, New York, NY, USA
| | - Natalia Shulzhenko
- College of Veterinary Medicine, Oregon State University, Corvallis, OR, USA
| | - Andrey Morgun
- College of Pharmacy, Oregon State University, Corvallis, OR, USA
| | - Milena Bogunovic
- Department of Pathology, University of Massachusetts Medical School, Worcester, MA, USA. .,Department of Microbiology and Immunology, Penn State University College of Medicine, Hershey, PA, USA.,Inflammatory Bowel Disease Center, Milton S. Hershey Medical Center, Hershey, PA, USA
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3
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Ostrominski JW, Yada RC, Sato N, Klein M, Blinova K, Patel D, Valadez R, Palisoc M, Pittaluga S, Peng KW, San H, Lin Y, Basuli F, Zhang X, Swenson RE, Haigney M, Choyke PL, Zou J, Boehm M, Hong SG, Dunbar CE. CRISPR/Cas9-mediated introduction of the sodium/iodide symporter gene enables noninvasive in vivo tracking of induced pluripotent stem cell-derived cardiomyocytes. Stem Cells Transl Med 2020; 9:1203-1217. [PMID: 32700830 PMCID: PMC7519772 DOI: 10.1002/sctm.20-0019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 05/10/2020] [Accepted: 05/24/2020] [Indexed: 12/31/2022] Open
Abstract
Techniques that enable longitudinal tracking of cell fate after myocardial delivery are imperative for optimizing the efficacy of cell‐based cardiac therapies. However, these approaches have been underutilized in preclinical models and clinical trials, and there is considerable demand for site‐specific strategies achieving long‐term expression of reporter genes compatible with safe noninvasive imaging. In this study, the rhesus sodium/iodide symporter (NIS) gene was incorporated into rhesus macaque induced pluripotent stem cells (RhiPSCs) via CRISPR/Cas9. Cardiomyocytes derived from NIS‐RhiPSCs (NIS‐RhiPSC‐CMs) exhibited overall similar morphological and electrophysiological characteristics compared to parental control RhiPSC‐CMs at baseline and with exposure to physiological levels of sodium iodide. Mice were injected intramyocardially with 2 million NIS‐RhiPSC‐CMs immediately following myocardial infarction, and serial positron emission tomography/computed tomography was performed with 18F‐tetrafluoroborate to monitor transplanted cells in vivo. NIS‐RhiPSC‐CMs could be detected until study conclusion at 8 to 10 weeks postinjection. This NIS‐based molecular imaging platform, with optimal safety and sensitivity characteristics, is primed for translation into large‐animal preclinical models and clinical trials.
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Affiliation(s)
- John W Ostrominski
- Translational Stem Cell Biology Branch, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, Maryland, USA
| | - Ravi Chandra Yada
- Translational Stem Cell Biology Branch, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, Maryland, USA
| | - Noriko Sato
- Molecular Imaging Program, Laboratory of Cellular Therapeutics, National Cancer Institute (NCI), NIH, Bethesda, Maryland, USA
| | - Michael Klein
- Division of Cardiology, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - Ksenia Blinova
- Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Dakshesh Patel
- Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Racquel Valadez
- Laboratory of Pathology, Center for Cancer Research, NCI, NIH, Bethesda, Maryland, USA
| | - Maryknoll Palisoc
- Laboratory of Pathology, Center for Cancer Research, NCI, NIH, Bethesda, Maryland, USA
| | - Stefania Pittaluga
- Laboratory of Pathology, Center for Cancer Research, NCI, NIH, Bethesda, Maryland, USA
| | - Kah-Whye Peng
- Department of Molecular Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Hong San
- Animal Surgery and Resources Core, NHLBI, NIH, Bethesda, Maryland, USA
| | | | - Falguni Basuli
- Chemistry and Synthesis Center, NHLBI, NIH, Bethesda, Maryland, USA
| | - Xiang Zhang
- Chemistry and Synthesis Center, NHLBI, NIH, Bethesda, Maryland, USA
| | - Rolf E Swenson
- Chemistry and Synthesis Center, NHLBI, NIH, Bethesda, Maryland, USA
| | - Mark Haigney
- Division of Cardiology, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - Peter L Choyke
- Molecular Imaging Program, Laboratory of Cellular Therapeutics, National Cancer Institute (NCI), NIH, Bethesda, Maryland, USA
| | - Jizhong Zou
- iPSC Core, NHLBI, NIH, Bethesda, Maryland, USA
| | - Manfred Boehm
- Laboratory of Cardiovascular Regenerative Medicine, NHLBI, NIH, Bethesda, Maryland, USA
| | - So Gun Hong
- Translational Stem Cell Biology Branch, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, Maryland, USA
| | - Cynthia E Dunbar
- Translational Stem Cell Biology Branch, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, Maryland, USA
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4
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Absinta M, Ha SK, Nair G, Sati P, Luciano NJ, Palisoc M, Louveau A, Zaghloul KA, Pittaluga S, Kipnis J, Reich DS. Human and nonhuman primate meninges harbor lymphatic vessels that can be visualized noninvasively by MRI. eLife 2017; 6:e29738. [PMID: 28971799 PMCID: PMC5626482 DOI: 10.7554/elife.29738] [Citation(s) in RCA: 348] [Impact Index Per Article: 49.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 09/01/2017] [Indexed: 01/20/2023] Open
Abstract
Here, we report the existence of meningeal lymphatic vessels in human and nonhuman primates (common marmoset monkeys) and the feasibility of noninvasively imaging and mapping them in vivo with high-resolution, clinical MRI. On T2-FLAIR and T1-weighted black-blood imaging, lymphatic vessels enhance with gadobutrol, a gadolinium-based contrast agent with high propensity to extravasate across a permeable capillary endothelial barrier, but not with gadofosveset, a blood-pool contrast agent. The topography of these vessels, running alongside dural venous sinuses, recapitulates the meningeal lymphatic system of rodents. In primates, meningeal lymphatics display a typical panel of lymphatic endothelial markers by immunohistochemistry. This discovery holds promise for better understanding the normal physiology of lymphatic drainage from the central nervous system and potential aberrations in neurological diseases.
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Affiliation(s)
- Martina Absinta
- Translational Neuroradiology SectionNational Institute of Neurological Disorders and Stroke, National Institutes of HealthBethesdaUnited States
| | - Seung-Kwon Ha
- Translational Neuroradiology SectionNational Institute of Neurological Disorders and Stroke, National Institutes of HealthBethesdaUnited States
| | - Govind Nair
- Translational Neuroradiology SectionNational Institute of Neurological Disorders and Stroke, National Institutes of HealthBethesdaUnited States
| | - Pascal Sati
- Translational Neuroradiology SectionNational Institute of Neurological Disorders and Stroke, National Institutes of HealthBethesdaUnited States
| | - Nicholas J Luciano
- Translational Neuroradiology SectionNational Institute of Neurological Disorders and Stroke, National Institutes of HealthBethesdaUnited States
| | - Maryknoll Palisoc
- Hematopathology Section, Laboratory of PathologyNational Cancer Institute, National Institutes of HealthBethesdaUnited States
| | - Antoine Louveau
- Center for Brain Immunology and Glia, Department of Neuroscience, School of MedicineUniversity of VirginiaCharlottesvilleUnited States
| | - Kareem A Zaghloul
- Surgical Neurology BranchNational Institute of Neurological Disorders and Stroke, National Institutes of HealthBethesdaUnited States
| | - Stefania Pittaluga
- Hematopathology Section, Laboratory of PathologyNational Cancer Institute, National Institutes of HealthBethesdaUnited States
| | - Jonathan Kipnis
- Center for Brain Immunology and Glia, Department of Neuroscience, School of MedicineUniversity of VirginiaCharlottesvilleUnited States
| | - Daniel S Reich
- Translational Neuroradiology SectionNational Institute of Neurological Disorders and Stroke, National Institutes of HealthBethesdaUnited States
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5
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Absinta M, Ha SK, Nair G, Sati P, Luciano NJ, Palisoc M, Louveau A, Zaghloul KA, Pittaluga S, Kipnis J, Reich DS. Human and nonhuman primate meninges harbor lymphatic vessels that can be visualized noninvasively by MRI. eLife 2017. [PMID: 28971799 DOI: 10.75554/elife.29738] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Here, we report the existence of meningeal lymphatic vessels in human and nonhuman primates (common marmoset monkeys) and the feasibility of noninvasively imaging and mapping them in vivo with high-resolution, clinical MRI. On T2-FLAIR and T1-weighted black-blood imaging, lymphatic vessels enhance with gadobutrol, a gadolinium-based contrast agent with high propensity to extravasate across a permeable capillary endothelial barrier, but not with gadofosveset, a blood-pool contrast agent. The topography of these vessels, running alongside dural venous sinuses, recapitulates the meningeal lymphatic system of rodents. In primates, meningeal lymphatics display a typical panel of lymphatic endothelial markers by immunohistochemistry. This discovery holds promise for better understanding the normal physiology of lymphatic drainage from the central nervous system and potential aberrations in neurological diseases.
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Affiliation(s)
- Martina Absinta
- Translational Neuroradiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, United States
| | - Seung-Kwon Ha
- Translational Neuroradiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, United States
| | - Govind Nair
- Translational Neuroradiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, United States
| | - Pascal Sati
- Translational Neuroradiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, United States
| | - Nicholas J Luciano
- Translational Neuroradiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, United States
| | - Maryknoll Palisoc
- Hematopathology Section, Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, United States
| | - Antoine Louveau
- Center for Brain Immunology and Glia, Department of Neuroscience, School of Medicine, University of Virginia, Charlottesville, United States
| | - Kareem A Zaghloul
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, United States
| | - Stefania Pittaluga
- Hematopathology Section, Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, United States
| | - Jonathan Kipnis
- Center for Brain Immunology and Glia, Department of Neuroscience, School of Medicine, University of Virginia, Charlottesville, United States
| | - Daniel S Reich
- Translational Neuroradiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, United States
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6
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Pratt D, Pittaluga S, Palisoc M, Fetsch P, Xi L, Raffeld M, Gilbert MR, Quezado M. Expression of CD70 (CD27L) Is Associated With Epithelioid and Sarcomatous Features in IDH-Wild-Type Glioblastoma. J Neuropathol Exp Neurol 2017; 76:697-708. [PMID: 28789475 DOI: 10.1093/jnen/nlx051] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Glioblastoma is an aggressive, often recalcitrant disease. In the majority of cases, prognosis is dismal and current therapies only moderately prolong survival. Immunotherapy is increasingly being recognized as an effective treatment modality. CD70 is a transmembrane protein that shows restricted expression in tissue but has been described in various malignancies. Therapeutic targeting of CD70 has demonstrated antitumor efficacy and is in clinical trials. Here, we sought to characterize CD70 expression in a large cohort of gliomas (n = 205) using tissue microarrays. We identified a subset of tumors (n = 18, 8.8% of high-grade gliomas) exhibiting moderate-to-strong immunoreactivity that enriched for the IDH-wild-type glioblastoma variants gliosarcoma (n = 10) and the newly described epithelioid glioblastoma (n = 4). CD70 expression was associated with prolonged survival in gliosarcoma. Analysis of TCGA datasets showed significantly increased CD70 expression in mesenchymal tumors and prolonged survival in recurrent non-G-CIMP high-expressing tumors. In CD70+ gliomas, there was a significant increase in CD68/CD163/HLA-DR+ tumor-associated macrophages, but not CD27+ TIL. These results confirm prior in vitro studies and demonstrate expression in a clinical cohort. The absence of CD70 expression in the post-treatment setting may portend more clinically aggressive disease in gliosarcoma. However, larger-scale studies will be needed to characterize and validate this relationship.
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Affiliation(s)
- Drew Pratt
- Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland (DP,SP,MP,PF,LX,MR,MQ); and Neuro-Oncology Branch, CCR, NCI, National Institutes of Health, Bethesda, Maryland (MRG)
| | - Stefania Pittaluga
- Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland (DP,SP,MP,PF,LX,MR,MQ); and Neuro-Oncology Branch, CCR, NCI, National Institutes of Health, Bethesda, Maryland (MRG)
| | - Maryknoll Palisoc
- Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland (DP,SP,MP,PF,LX,MR,MQ); and Neuro-Oncology Branch, CCR, NCI, National Institutes of Health, Bethesda, Maryland (MRG)
| | - Patricia Fetsch
- Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland (DP,SP,MP,PF,LX,MR,MQ); and Neuro-Oncology Branch, CCR, NCI, National Institutes of Health, Bethesda, Maryland (MRG)
| | - Liqiang Xi
- Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland (DP,SP,MP,PF,LX,MR,MQ); and Neuro-Oncology Branch, CCR, NCI, National Institutes of Health, Bethesda, Maryland (MRG)
| | - Mark Raffeld
- Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland (DP,SP,MP,PF,LX,MR,MQ); and Neuro-Oncology Branch, CCR, NCI, National Institutes of Health, Bethesda, Maryland (MRG)
| | - Mark R Gilbert
- Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland (DP,SP,MP,PF,LX,MR,MQ); and Neuro-Oncology Branch, CCR, NCI, National Institutes of Health, Bethesda, Maryland (MRG)
| | - Martha Quezado
- Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland (DP,SP,MP,PF,LX,MR,MQ); and Neuro-Oncology Branch, CCR, NCI, National Institutes of Health, Bethesda, Maryland (MRG)
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7
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Ostrominski J, Yada RC, Sato N, Palisoc M, Pittaluga S, Lin Y, Zou J, Peng KW, Hong SG, Dunbar C. Abstract 193: CRISPR-mediated Introduction of the Sodium-iodide Symporter to Enable Non-invasive Monitoring of Macaque Induced-pluripotent Stem Cell-derived Cardiomyocytes. Circ Res 2017. [DOI: 10.1161/res.121.suppl_1.193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Due to the limited regenerative capacity of mature cardiomyocytes, cardiac cell therapies constitute an exciting strategy for myocardial repair. However, there is limited understanding of the spatio-temporal distribution and survival of transplanted cells. Hence, there is demand for technologies enabling long-term non-invasive tracking of transplanted cellular therapeutics. Sodium-iodide symporter (NIS)-based
in vivo
imaging has many potential advantages, including predicted safety and immunotolerance due to reliance on an endogenous species-specific gene and on widely available imaging technologies. We believe that non-human primates represent ideal models for investigating the biology of allogenic or autologous cellular grafts, because of close physiologic similarity to humans. We report the development of NIS-based
in vivo
imaging to detect and track rhesus induced pluripotent stem cell (RhiPSC)-derived teratomas as a proof-of-concept model tested in mice, and characterization of NIS-positive RhiPSC (NIS-RhiPSC)-derived cardiomyocytes (CM). NIS-RhiPSCs were generated by CRISPR/Cas9-mediated integration of the rhesus NIS cDNA within the
AAVS1
safe harbor locus. NIS was stably expressed and radiotracer uptake by NIS-RhiPSCs was demonstrated
in vitro
. To evaluate viability of NIS-mediated imaging in RhiPSCs, undifferentiated NIS-RhiPSCs were introduced intramuscularly into immunodeficient mice, and NIS imaging was performed via PET/CT at 2, 4, and 6-weeks post-injection. NIS-positive teratomas were readily detectable as early as 2 weeks post-injection, prior to development of any palpable mass. Using our previously established differentiation protocol, NIS-RhiPS-CMs were derived with high purity, exhibited spontaneous beating in culture, and were similar in all aspects to parental RhiPS-CMs. NIS-RhiPS-CMs maintained stable NIS expression that was comparable to undifferentiated NIS-RhiPSCs, suggesting that
in vivo
imaging of transplanted NIS-RhiPS-CMs should be feasible. Further functional characterization of NIS-RhiPS-CMs, including
in vitro
radiotracer uptake, post-transplantation imaging in a mouse myocardial infarction model, and electrophysiologic analysis is ongoing and data will be presented.
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8
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Hong SG, Yada RC, Choi K, Carpentier A, Liang TJ, Merling RK, Sweeney CL, Malech HL, Jung M, Corat MAF, AlJanahi AA, Lin Y, Liu H, Tunc I, Wang X, Palisoc M, Pittaluga S, Boehm M, Winkler T, Zou J, Dunbar CE. Rhesus iPSC Safe Harbor Gene-Editing Platform for Stable Expression of Transgenes in Differentiated Cells of All Germ Layers. Mol Ther 2017; 25:44-53. [PMID: 28129126 DOI: 10.1016/j.ymthe.2016.10.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 10/31/2016] [Accepted: 10/31/2016] [Indexed: 02/08/2023] Open
Abstract
Nonhuman primate (NHP) induced pluripotent stem cells (iPSCs) offer the opportunity to investigate the safety, feasibility, and efficacy of proposed iPSC-derived cellular delivery in clinically relevant in vivo models. However, there is need for stable, robust, and safe labeling methods for NHP iPSCs and their differentiated lineages to study survival, proliferation, tissue integration, and biodistribution following transplantation. Here we investigate the utility of the adeno-associated virus integration site 1 (AAVS1) as a safe harbor for the addition of transgenes in our rhesus macaque iPSC (RhiPSC) model. A clinically relevant marker gene, human truncated CD19 (hΔCD19), or GFP was inserted into the AAVS1 site in RhiPSCs using the CRISPR/Cas9 system. Genetically modified RhiPSCs maintained normal karyotype and pluripotency, and these clones were able to further differentiate into all three germ layers in vitro and in vivo. In contrast to transgene delivery using randomly integrating viral vectors, AAVS1 targeting allowed stable transgene expression following differentiation. Off-target mutations were observed in some edited clones, highlighting the importance of careful characterization of these cells prior to downstream applications. Genetically marked RhiPSCs will be useful to further advance clinically relevant models for iPSC-based cell therapies.
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Affiliation(s)
- So Gun Hong
- Hematology Branch, National Heart, Lung and Blood Institute (NHLBI), NIH, Bethesda, MD 20892, USA.
| | - Ravi Chandra Yada
- Hematology Branch, National Heart, Lung and Blood Institute (NHLBI), NIH, Bethesda, MD 20892, USA
| | - Kyujoo Choi
- Hematology Branch, National Heart, Lung and Blood Institute (NHLBI), NIH, Bethesda, MD 20892, USA
| | - Arnaud Carpentier
- Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, MD 20892, USA
| | - T Jake Liang
- Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, MD 20892, USA
| | - Randall K Merling
- Laboratory of Host Defenses, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD 20892, USA
| | - Colin L Sweeney
- Laboratory of Host Defenses, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD 20892, USA
| | - Harry L Malech
- Laboratory of Host Defenses, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD 20892, USA
| | - Moonjung Jung
- Hematology Branch, National Heart, Lung and Blood Institute (NHLBI), NIH, Bethesda, MD 20892, USA
| | - Marcus A F Corat
- Hematology Branch, National Heart, Lung and Blood Institute (NHLBI), NIH, Bethesda, MD 20892, USA; Multidisciplinar Center for Biological Research, University of Campinas, Campinas, SP 13083-877, Brazil
| | - Aisha A AlJanahi
- Hematology Branch, National Heart, Lung and Blood Institute (NHLBI), NIH, Bethesda, MD 20892, USA; Department of Chemistry and Molecular & Cellular Biology, Georgetown University, Washington, D.C. 20057, USA
| | - Yongshun Lin
- iPSC Core, Center for Molecular Medicine, NHLBI, NIH, Bethesda, MD 20892, USA
| | - Huimin Liu
- iPSC Core, Center for Molecular Medicine, NHLBI, NIH, Bethesda, MD 20892, USA
| | - Ilker Tunc
- Systems Biology Core, Systems Biology Center, NHLBI, NIH, Bethesda, MD 20892, USA
| | - Xujing Wang
- Systems Biology Core, Systems Biology Center, NHLBI, NIH, Bethesda, MD 20892, USA
| | - Maryknoll Palisoc
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD 20892, USA
| | - Stefania Pittaluga
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD 20892, USA
| | - Manfred Boehm
- Laboratory of Cardiovascular Regenerative Medicine, NHLBI, NIH, Bethesda, MD 20892, USA
| | - Thomas Winkler
- Hematology Branch, National Heart, Lung and Blood Institute (NHLBI), NIH, Bethesda, MD 20892, USA
| | - Jizhong Zou
- iPSC Core, Center for Molecular Medicine, NHLBI, NIH, Bethesda, MD 20892, USA
| | - Cynthia E Dunbar
- Hematology Branch, National Heart, Lung and Blood Institute (NHLBI), NIH, Bethesda, MD 20892, USA
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Yada RC, Hong SG, Zou J, Choi K, Carpentier A, Liang TJ, Merling R, Sweeney C, Malech H, Jung M, Corat M, Lin Y, Tunc I, Wang X, Palisoc M, Pittaluga S, Winkler T, Dunbar C. 527. Improvement of Pre-Clinical Non-Human Primate Model for Pluripotent Stem Cell Based Therapies by Introducing Marker Genes in Safe Harbor Locus. Mol Ther 2016. [DOI: 10.1016/s1525-0016(16)33336-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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