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Vieira MM, Peng S, Won S, Hong E, Inati SK, Thurm A, Thiam AH, Kim S, Myers SJ, Badger JD, Traynelis SF, Lu W, Roche KW. A Frameshift Variant of GluN2A Identified in an Epilepsy Patient Results in NMDA Receptor Mistargeting. J Neurosci 2024; 44:e0557232023. [PMID: 38050135 PMCID: PMC10860613 DOI: 10.1523/jneurosci.0557-23.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 08/24/2023] [Accepted: 11/14/2023] [Indexed: 12/06/2023] Open
Abstract
N-methyl-D-aspartate receptors (NMDARs) are crucial for neuronal development and synaptic plasticity. Dysfunction of NMDARs is associated with multiple neurodevelopmental disorders, including epilepsy, autism spectrum disorder, and intellectual disability. Understanding the impact of genetic variants of NMDAR subunits can shed light on the mechanisms of disease. Here, we characterized the functional implications of a de novo mutation of the GluN2A subunit (P1199Rfs*32) resulting in the truncation of the C-terminal domain. The variant was identified in a male patient with epileptic encephalopathy, multiple seizure types, severe aphasia, and neurobehavioral changes. Given the known role of the CTD in NMDAR trafficking, we examined changes in receptor localization and abundance at the postsynaptic membrane using a combination of molecular assays in heterologous cells and rat primary neuronal cultures. We observed that the GluN2A P1199Rfs*32-containing receptors traffic efficiently to the postsynaptic membrane but have increased extra-synaptic expression relative to WT GluN2A-containing NMDARs. Using in silico predictions, we hypothesized that the mutant would lose all PDZ interactions, except for the recycling protein Scribble1. Indeed, we observed impaired binding to the scaffolding protein postsynaptic protein-95 (PSD-95); however, we found the mutant interacts with Scribble1, which facilitates the recycling of both the mutant and the WT GluN2A. Finally, we found that neurons expressing GluN2A P1199Rfs*32 have fewer synapses and decreased spine density, indicating compromised synaptic transmission in these neurons. Overall, our data show that GluN2A P1199Rfs*32 is a loss-of-function variant with altered membrane localization in neurons and provide mechanistic insight into disease etiology.
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Affiliation(s)
- M M Vieira
- Receptor Biology Section, National Institute of Neurological Disorders and Stroke (NINDS), National Institutes of Health (NIH), Bethesda 20892, Maryland
| | - S Peng
- Synapse and Neural Circuit Research Section, NINDS, NIH, Bethesda 20892, Maryland
| | - S Won
- Receptor Biology Section, National Institute of Neurological Disorders and Stroke (NINDS), National Institutes of Health (NIH), Bethesda 20892, Maryland
| | - E Hong
- Receptor Biology Section, National Institute of Neurological Disorders and Stroke (NINDS), National Institutes of Health (NIH), Bethesda 20892, Maryland
| | - S K Inati
- Neurophysiology of Epilepsy Unit, NINDS, NIH, Bethesda 20892, Maryland
| | - A Thurm
- National Institute of Mental Health, National Institutes of Health, Bethesda 20892, Maryland
| | - A H Thiam
- Office of the Clinical Director, NINDS, NIH, Bethesda 20892, Maryland
| | - S Kim
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta 30322, Georgia
- Center for Functional Evaluation of Rare Variants (CFERV), Emory University School of Medicine, Atlanta 30322, Georgia
| | - S J Myers
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta 30322, Georgia
- Center for Functional Evaluation of Rare Variants (CFERV), Emory University School of Medicine, Atlanta 30322, Georgia
| | - J D Badger
- Receptor Biology Section, National Institute of Neurological Disorders and Stroke (NINDS), National Institutes of Health (NIH), Bethesda 20892, Maryland
| | - S F Traynelis
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta 30322, Georgia
- Center for Functional Evaluation of Rare Variants (CFERV), Emory University School of Medicine, Atlanta 30322, Georgia
| | - W Lu
- Synapse and Neural Circuit Research Section, NINDS, NIH, Bethesda 20892, Maryland
| | - K W Roche
- Receptor Biology Section, National Institute of Neurological Disorders and Stroke (NINDS), National Institutes of Health (NIH), Bethesda 20892, Maryland
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Hong E, Dobrovolskaia MA. Detection of Antigen Presentation by Murine Bone Marrow-Derived Dendritic Cells After Treatment with Nanoparticles. Methods Mol Biol 2024; 2789:161-169. [PMID: 38507002 DOI: 10.1007/978-1-0716-3786-9_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Nanoparticles are frequently considered in vaccine applications due to their ability to co-deliver multiple antigens and adjuvants to antigen-presenting cells. Some nanoparticles also have intrinsic adjuvant properties that further enhance their ability to stimulate immune cells. The delivery of tumor-specific antigens to antigen-presenting cells (APCs) with subsequent antigenic peptide presentation in the context of class I major histocompatibility complex (MHC-I) molecules represents an essential effort in developing nanotechnology-based cancer vaccines. Experimental models are, therefore, needed to gauge the efficiency of nanotechnology carriers in achieving peptide antigen delivery to APCs and presentation in the context of MHC-I. The assay described herein utilizes a model antigen ovalbumin and model APCs, murine bone marrow-derived dendritic cells. The 25-D1.16 antibody, specific to the ovalbumin (OVA) MHC-I peptide SIINFEKL, recognizes this peptide presented in the context of the murine H2-Kb class I MHC molecule, allowing the presentation of this antigen on APCs to be detected by flow cytometry after nanoparticle delivery.
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Affiliation(s)
- Enping Hong
- Nanotechnology Characterization Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Marina A Dobrovolskaia
- Nanotechnology Characterization Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA.
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Hong E, Dobrovolskaia MA. Antigen-Specific Stimulation of CD8 + T Cells by Murine Bone Marrow-Derived Dendritic Cells After Treatment with Nanoparticles. Methods Mol Biol 2024; 2789:171-184. [PMID: 38507003 DOI: 10.1007/978-1-0716-3786-9_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
The assessment of antigen presentation by dendritic cells and subsequent antigen-dependent activation of T lymphocytes is a critical step underlying the efficacy of nanoparticle-based therapeutic vaccines. Since nanoparticle physicochemical properties determine their interactions with the immune system, the early stages of nanotechnology-based vaccine development commonly involve optimizing the particles' properties to create a formulation with desired stability, antigen release, targeting of desired cell populations, and efficacy. To accelerate this process, in vitro models suitable for the rapid assessment of a novel vaccine candidate's efficacy are highly desirable. One such model is described in this protocol. Herein, nanoparticles are formulated to deliver a model antigen, SIINFEKL (OVA257-264), the immunodominant class I peptide derived from ovalbumin. These nanoparticles are added to the culture of murine bone marrow-derived dendritic cells, which are subsequently co-incubated with CD8+ T cells from OT-I transgenic mice. The efficient antigen presentation by dendritic cells results in the antigen-dependent proliferation of CD8+ T cells, which is detected by flow cytometry.
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Affiliation(s)
- Enping Hong
- Nanotechnology Characterization Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Marina A Dobrovolskaia
- Nanotechnology Characterization Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA.
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Ghaderpour A, Jeong J, Kim Y, Zou Y, Park K, Hong E, Koh Y, Seong S. 335 HY209, a GPCR19 agonist, ameliorates atopic dermatitis in mice. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.348] [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: 11/19/2022]
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Chandler M, Jain S, Halman J, Hong E, Dobrovolskaia MA, Zakharov AV, Afonin KA. Artificial Immune Cell, AI-cell, a New Tool to Predict Interferon Production by Peripheral Blood Monocytes in Response to Nucleic Acid Nanoparticles. Small 2022; 18:e2204941. [PMID: 36216772 PMCID: PMC9671856 DOI: 10.1002/smll.202204941] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/15/2022] [Indexed: 06/16/2023]
Abstract
Nucleic acid nanoparticles, or NANPs, rationally designed to communicate with the human immune system, can offer innovative therapeutic strategies to overcome the limitations of traditional nucleic acid therapies. Each set of NANPs is unique in their architectural parameters and physicochemical properties, which together with the type of delivery vehicles determine the kind and the magnitude of their immune response. Currently, there are no predictive tools that would reliably guide the design of NANPs to the desired immunological outcome, a step crucial for the success of personalized therapies. Through a systematic approach investigating physicochemical and immunological profiles of a comprehensive panel of various NANPs, the research team developes and experimentally validates a computational model based on the transformer architecture able to predict the immune activities of NANPs. It is anticipated that the freely accessible computational tool that is called an "artificial immune cell," or AI-cell, will aid in addressing the current critical public health challenges related to safety criteria of nucleic acid therapies in a timely manner and promote the development of novel biomedical tools.
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Affiliation(s)
- Morgan Chandler
- Department of Chemistry, University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | - Sankalp Jain
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD 20850, USA
| | - Justin Halman
- Department of Chemistry, University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | - Enping Hong
- Nanotechnology Characterization Lab, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA
| | - Marina A. Dobrovolskaia
- Nanotechnology Characterization Lab, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA
| | - Alexey V. Zakharov
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD 20850, USA
| | - Kirill A. Afonin
- Department of Chemistry, University of North Carolina at Charlotte, Charlotte, NC 28223, USA
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Zúñiga LA, Leßmann T, Uppal K, Bisek N, Hong E, Rasmussen CE, Karlsson JJ, Zettler J, Holten-Andersen L, Bang K, Thakar D, Lee YC, Martinez S, Sabharwal SS, Stark S, Faltinger F, Kracker O, Weisbrod S, Müller R, Voigt T, Bigott K, Tabrizifard M, Breinholt VM, Mirza AM, Rosen DB, Sprogøe K, Punnonen J. Intratumoral delivery of TransCon ™ TLR7/8 Agonist promotes sustained anti-tumor activity and local immune cell activation while minimizing systemic cytokine induction. Cancer Cell Int 2022; 22:286. [PMID: 36123697 PMCID: PMC9484246 DOI: 10.1186/s12935-022-02708-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 07/13/2022] [Accepted: 09/02/2022] [Indexed: 11/11/2022] Open
Abstract
Background Intratumoral (IT) delivery of toll-like receptor (TLR) agonists has shown encouraging anti-tumor benefit in preclinical and early clinical studies. However, IT delivery of TLR agonists may lead to rapid effusion from the tumor microenvironment (TME), potentially limiting the duration of local inflammation and increasing the risk of systemic adverse events. Methods To address these limitations, TransCon™ TLR7/8 Agonist—an investigational sustained-release prodrug of resiquimod that uses a TransCon linker and hydrogel technology to achieve sustained and predictable IT release of resiquimod—was developed. TransCon TLR7/8 Agonist was characterized for resiquimod release in vitro and in vivo, in mice and rats, and was assessed for anti-tumor efficacy and pharmacodynamic activity in mice. Results Following a single IT dose, TransCon TLR7/8 Agonist mediated potent tumor growth inhibition which was associated with sustained resiquimod release over several weeks with minimal induction of systemic cytokines. TransCon TLR7/8 Agonist monotherapy promoted activation of antigen-presenting cells in the TME and tumor-draining lymph nodes, with evidence of activation and expansion of CD8+ T cells in the tumor-draining lymph node and TME. Combination of TransCon TLR7/8 Agonist with systemic immunotherapy further promoted anti-tumor activity in TransCon TLR7/8 Agonist-treated tumors. In a bilateral tumor setting, combination of TransCon TLR7/8 Agonist with systemic IL-2 potentiated tumor growth inhibition in both injected and non-injected tumors and conferred protection against tumor rechallenge following complete regressions. Conclusions Our findings show that a single dose of TransCon TLR7/8 Agonist can mediate sustained local release of resiquimod in the TME and promote potent anti-tumor effects as monotherapy and in combination with systemic immunotherapy, supporting TransCon TLR7/8 Agonist as a novel intratumoral TLR agonist for cancer therapy. A clinical trial to evaluate the safety and efficacy of TransCon TLR7/8 Agonist, as monotherapy and in combination with pembrolizumab, in cancer patients is currently ongoing (transcendIT-101; NCT04799054). Supplementary Information The online version contains supplementary material available at 10.1186/s12935-022-02708-6.
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Affiliation(s)
| | | | - Karan Uppal
- Ascendis Pharma, Inc., Redwood City, CA, USA
| | | | - Enping Hong
- Ascendis Pharma, Inc., Redwood City, CA, USA
| | | | | | | | | | - Kathy Bang
- Ascendis Pharma, Inc., Redwood City, CA, USA
| | | | - Yu-Chi Lee
- Ascendis Pharma, Inc., Redwood City, CA, USA
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Rosen DB, Kvarnhammar AM, Laufer B, Knappe T, Karlsson JJ, Hong E, Lee YC, Thakar D, Zúñiga LA, Bang K, Sabharwal SS, Uppal K, Olling JD, Kjaergaard K, Kurpiers T, Schnabel M, Reich D, Glock P, Zettler J, Krusch M, Bernhard A, Heinig S, Konjik V, Wegge T, Hehn Y, Killian S, Viet L, Runz J, Faltinger F, Tabrizi M, Abel KL, Breinholt VM, Singel SM, Sprogøe K, Punnonen J. TransCon IL-2 β/γ: a novel long-acting prodrug with sustained release of an IL-2Rβ/γ-selective IL-2 variant with improved pharmacokinetics and potent activation of cytotoxic immune cells for the treatment of cancer. J Immunother Cancer 2022; 10:jitc-2022-004991. [PMID: 35817480 PMCID: PMC9274542 DOI: 10.1136/jitc-2022-004991] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [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] [Accepted: 06/21/2022] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Recombinant interleukin-2 (IL-2, aldesleukin) is an approved cancer immunotherapy but causes severe toxicities including cytokine storm and vascular leak syndrome (VLS). IL-2 promotes antitumor function of IL-2Rβ/γ+ natural killer (NK) cells and CD8+, CD4+ and gamma delta (γδ) T cells. However, IL-2 also potently activates immunosuppressive IL-2Rα+ regulatory T cells (Tregs) and IL-2Rα+ eosinophils and endothelial cells, which may promote VLS. Aldesleukin is rapidly cleared requiring frequent dosing, resulting in high Cmax likely potentiating toxicity. Thus, IL-2 cancer immunotherapy has two critical drawbacks: potent activation of undesired IL-2Rα+ cells and suboptimal pharmacokinetics with high Cmax and short half-life. METHODS TransCon IL-2 β/γ was designed to optimally address these drawbacks. To abolish IL-2Rα binding yet retain strong IL-2Rβ/γ activity, IL-2 β/γ was created by permanently attaching a small methoxy polyethylene glycol (mPEG) moiety in the IL-2Rα binding site. To improve pharmacokinetics, IL-2 β/γ was transiently attached to a 40 kDa mPEG carrier via a TransCon (transient conjugation) linker creating a prodrug, TransCon IL-2 β/γ, with sustained release of IL-2 β/γ. IL-2 β/γ was characterized in binding and primary cell assays while TransCon IL-2 β/γ was studied in tumor-bearing mice and cynomolgus monkeys. RESULTS IL-2 β/γ demonstrated selective and potent human IL-2Rβ/γ binding and activation without IL-2Rα interactions. TransCon IL-2 β/γ showed slow-release pharmacokinetics with a low Cmax and a long (>30 hours) effective half-life for IL-2 β/γ in monkeys. In mouse tumor models, TransCon IL-2 β/γ promoted CD8+ T cell and NK cell activation and antitumor activity. In monkeys, TransCon IL-2 β/γ induced robust activation and expansion of CD8+ T cells, NK cells and γδ T cells, relative to CD4+ T cells, Tregs and eosinophils, with no evidence of cytokine storm or VLS. Similarly, IL-2 β/γ enhanced proliferation and cytotoxicity of primary human CD8+ T cells, NK cells and γδ T cells. SUMMARY TransCon IL-2 β/γ is a novel long-acting prodrug with sustained release of an IL-2Rβ/γ-selective IL-2. It has remarkable and durable pharmacodynamic effects in monkeys and potential for improved clinical efficacy and tolerability compared with aldesleukin. TransCon IL-2 β/γ is currently being evaluated in a Phase 1/2 clinical trial (NCT05081609).
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Affiliation(s)
| | | | | | | | | | - Enping Hong
- Ascendis Pharma Inc, Redwood City, California, USA
| | - Yu-Chi Lee
- Ascendis Pharma Inc, Redwood City, California, USA
| | - Dhruv Thakar
- Ascendis Pharma Inc, Redwood City, California, USA
| | | | - Kathy Bang
- Ascendis Pharma Inc, Redwood City, California, USA
| | | | - Karan Uppal
- Ascendis Pharma Inc, Redwood City, California, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Laura Viet
- Ascendis Pharma GmbH, Heidelberg, Germany
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van de Weerd S, Hong E, van den Berg I, Wijlemans JW, van Vooren J, Prins MW, Wessels FJ, Heeres BC, Roberti S, Nederend J, van Krieken JHJM, Roodhart JML, Beets-Tan RGH, Medema JP. Accurate staging of non-metastatic colon cancer with CT: the importance of training and practice for experienced radiologists and analysis of incorrectly staged cases. Abdom Radiol (NY) 2022; 47:3375-3385. [PMID: 35798962 PMCID: PMC9463303 DOI: 10.1007/s00261-022-03573-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 03/24/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 01/18/2023]
Abstract
PURPOSE To investigate whether locoregional staging of colon cancer by experienced radiologists can be improved by training and feedback to minimize the risk of over-staging into the context of patient selection for neoadjuvant therapy and to identify potential pitfalls of CT staging by characterizing pathologic traits of tumors that remain challenging for radiologists. METHODS Forty-five cases of stage I-III colon cancer were included in this retrospective study. Five experienced radiologists evaluated the CTs; 5 baseline scans followed by 4 sequential batches of 10 scans. All radiologists were trained after baseline scoring and 2 radiologists received feedback. The learning curve, diagnostic performance, reader confidence, and reading time were evaluated with pathologic staging as reference. Pathology reports and H&E slides of challenging cases were reviewed to identify potential pitfalls. RESULTS Diagnostic performance in distinguishing T1-2 vs. T3-4 improved significantly after training and with increasing number of reviewed cases. Inaccurate staging was more frequently related to under-staging rather than over-staging. Risk of over-staging was minimized to 7% in batch 3-4. N-staging remained unreliable with an overall accuracy of 61%. Pathologic review identified two tumor characteristics causing under-staging for T-stage in 5/7 cases: (1) very limited invasive part beyond the muscularis propria and (2) mucinous composition of the invading part. CONCLUSION The high accuracy and specificity of T-staging reached in our study indicate that sufficient training and practice of experienced radiologists can ensure high validity for CT staging in colon cancer to safely use neoadjuvant therapy without significant risk of over-treatment, while N-staging remained unreliable.
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Affiliation(s)
- S. van de Weerd
- Laboratory for Experimental Oncology and Radiobiology, Center for Experimental and Molecular Medicine, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands ,Department of Pathology, Radboud University Medical Centre, Nijmegen, The Netherlands ,Oncode Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - E. Hong
- Department of Radiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands ,Department of Radiology, Seoul National University Hospital, Seoul, South Korea ,GROW School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - I. van den Berg
- Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands ,Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - J. W. Wijlemans
- Department of Radiology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - J. van Vooren
- Department of Radiology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - M. W. Prins
- Department of Radiology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - F. J. Wessels
- Department of Radiology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - B. C. Heeres
- Department of Radiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - S. Roberti
- Department of Epidemiology and Biostatistics, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - J. Nederend
- Department of Radiology, Catharina Hospital, Eindhoven, The Netherlands
| | | | - J. M. L. Roodhart
- Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - R. G. H. Beets-Tan
- Department of Radiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands ,GROW School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - J. P. Medema
- Laboratory for Experimental Oncology and Radiobiology, Center for Experimental and Molecular Medicine, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands ,Oncode Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
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Zuniga L, Uppal K, Bang K, Hong E, Sabharwal S, Lee Y, Martinez S, Rosen D, Mirza A, Punnonen J. 769 A single dose of intratumoral TransCon™ TLR7/8 agonist monotherapy promoted sustained activation of antigen presenting cells resulting in CD4+ and CD8+ T cell activation and tumor growth inhibition. J Immunother Cancer 2021. [DOI: 10.1136/jitc-2021-sitc2021.769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
BackgroundThe use of pattern recognition receptor agonists (PRRAs) such as Toll-like receptor (TLR) agonists is an attractive approach for cancer immunotherapy. TLR agonism elicits anti-tumor activity by activating antigen presenting cells (APCs) to promote a proinflammatory microenvironment and anti-tumor immunity. Local delivery of TLR agonists has shown encouraging preclinical and clinical anti-tumor benefit. However, intratumoral (IT) delivery of naked PRRAs may lead to rapid effusion from the tumor microenvironment, potentially impacting their effectiveness in inducing local inflammation and may promote systemic cytokine release, increasing the risk of adverse effects.MethodsTransConTM TLR7/8 Agonist was designed to address the current limitations of PRRA therapies and IT delivery through sustained and controlled release of resiquimod, a potent TLR7/8 agonist, following IT administration of a hydrogel depot.ResultsA single IT injection of TransCon TLR7/8 Agonist induced potent tumor growth inhibition in a dose-dependent manner in syngeneic mouse CT26 tumors. Following IT TransCon TLR7/8 Agonist treatment, acute and sustained upregulation of cell surface markers indicative of activation of APCs, such as CD54, CD69, and CD86, in the tumor was observed by fluorescence activated flow cytometry (FACs). Additionally, TransCon TLR7/8 Agonist treatment was associated with an increase in the frequency of APCs with an activated phenotype in tumor draining lymph nodes (LNs). Further, a concomitant potentiation in the frequency of activated CD4 and CD8 T cells in tumor draining LNs following IT TransCon TLR7/8 Agonist treatment was observed, as demonstrated by increased expression of Ki67, ICOS, or granzyme B.ConclusionsThese data support that a single IT dose of TransCon TLR7/8 Agonist can mediate robust anti-tumor activity as a monotherapy in the CT26 syngeneic mouse tumor model while promoting local activation of intratumoral APCs. Such activation may promote tumor antigen uptake and migration to tumor-associated lymphoid tissue, as evidenced by an increase in APCs with an activated phenotype in tumor draining LNs following TransCon TLR7/8 Agonist treatment. Activated tumor antigen-bearing APCs can promote the priming and activation of tumor-specific T cells in the tumor-draining LNs. Consistently, a dose-dependent increase in the frequency of T cells with an activated effector phenotype in tumor draining LNs following administration of TransCon TLR7/8 Agonist was observed. These preclinical data further support TransCon TLR7/8 Agonist as a novel and potentially efficacious PRRA therapy. A clinical trial to evaluate safety and efficacy of TransCon TLR7/8 Agonist as monotherapy, and in combination with pembrolizumab, in cancer patients has been initiated (transcendIT-101; NCT04799054).Ethics ApprovalThe animal studies performed described were performed in accordance with the “Guide for the Care and Use of Laboratory Animals: Eighth Edition” and approved by the institutional animal care and use committee (IACUC).
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Hong E, Rao A, Beringer P. 242: Evaluation of the drug-drug interaction potential of clofazimineivacaftor using a physiologically based pharmacokinetic simulation approach. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01667-2] [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: 11/30/2022]
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Dugast AS, McArdel S, Castano Z, Hoover M, Bollampalli AR, Hong E, Leonard S, Pepi R, Nanna A, Turka L, Elloul S. 208 RTX-224, an engineered allogeneic red cell therapeutic expressing 4–1BBL and IL-12, activates immune cells in blood and spleen to promote tumor growth inhibition in mice. J Immunother Cancer 2021. [DOI: 10.1136/jitc-2021-sitc2021.208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BackgroundAgonist antibodies and recombinant cytokines have had limited success in the clinic due to three factors: severe toxicity leading to a narrow therapeutic index, the diminished activity of an agonistic antibody compared with natural ligand, and the lack of multiple signals needed to effectively activate most cell types. To address these limitations, Rubius Therapeutics has developed RTX-224, an allogeneic red cell therapeutic genetically engineered to express hundreds of thousands of copies of 4-1BBL and IL-12 in their natural conformation on the cell surface. RTX-224 is designed to activate four key target cell types: CD4+ and CD8+ T cells, antigen presenting cells and NK cells for a broad and effective anti-tumor response while providing improved safety due to the restricted biodistribution of red blood cells to the vasculature and spleen. Here we investigated the potential efficacy and mechanism of action of RTX-224 using the mouse surrogate mRBC-224.MethodsmRBC-224 was administered intravenously (i.v.) to normal or tumor-bearing mice (B16F10 tumor models). Blood, spleen and tumors were harvested and the pharmacodynamic effects of mRBC-224 on immune cells were evaluated.ResultsmRBC-224 administered to mice inoculated i.v. with B16F10 melanoma reduced the number of metastases (p<0.0001 and 76.8% tumor growth inhibition on Day 14). This was accompanied by increased proliferation (Ki67+) and cytotoxicity (GzmB+) of tumor-infiltrating CD8+ T cells and NK cells, and an increased CD8+ effector memory (TEM) phenotype. Similarly, mRBC-224 reduced tumor growth in the B16F10 s.c. model (p<0.0001 and 56.2% tumor growth inhibition on Day 9), and this was associated with increased frequency of activated (MHC-II+) tumor-infiltrating macrophages. Consistent with the known biodistribution of red cells, mRBC-224 did not distribute to the tumor but was predominantly localized in the blood and spleen raising the question about mRBC-224 mechanism of action in mediating antitumor responses. In normal and B16F10 s.c. tumor-bearing mice, mRBC-224 induced the activation of CD8+ T cells, NK cells and monocytes/macrophages in blood and spleen in a dose-dependent manner. PD studies in the tumor suggest that these activated immune cells are capable of trafficking from blood/spleen to the tumor. These results align with published data suggesting that activated T cells in the spleen or blood can replenish exhausted tumor-infiltrating cells.ConclusionsTaken together, these data unveil the mechanism of action of mRBC-224 and suggest that mRBC-224 activate immune cells in the spleen and blood, leading to their trafficking into the tumor microenvironment to promote efficacy.
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Mirza A, Zuniga L, Uppal K, Bang K, Hong E, Sabharwal S, Lee Y, Martinez S, Rosen D, Punnonen J. 16 Tumor growth inhibition mediated by a single dose of intratumoral TransCon™ TLR7/8 agonist was associated with activated circulating T and B cells and sustained low levels of systemic cytokines. J Immunother Cancer 2021. [DOI: 10.1136/jitc-2021-sitc2021.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BackgroundTLR agonists can elicit anti-tumor activity by activating innate immune cells and promoting a proinflammatory microenvironment. Local delivery of TLR agonists has shown encouraging preclinical and clinical anti-tumor activity. However, intratumoral (IT) delivery of naked TLR agonists such as resiquimod, a TLR7/8 agonist, can lead to rapid efflux from the tumor, resulting in acute high systemic drug exposure and transient but high level of peripheral proinflammatory cytokines, thus limiting anti-tumor benefit and increasing risk of cytokine-driven adverse effects.MethodsTransCon™ TLR7/8 Agonist was designed to elicit a sustained and local release of resiquimod following IT administration of a hydrogel depot. In the syngeneic murine CT26 tumor model, a single IT injection of TransCon TLR7/8 Agonist monotherapy was sufficient to induce potent tumor growth inhibition. Following treatment, the induction of key cytokines and chemokines associated with innate immunity was determined.ResultsProinflammatory cytokines (IL-1b, IL-6, and TNFα) were induced following IT TransCon TLR7/8 Agonist treatment, but in contrast to free resiquimod, peak levels were more than 10-fold lower than those observed with an equimolar dose of free resiquimod. The circulating levels of these cytokines were sustained above control alone through Day 21. TH1-associated IFNγ was induced with levels increased at Day 1 and maintained at Day 7. Additionally, expression of myeloid-associated chemokines (KC/GROa/CXCL1, MCP-1/CCL2, IP-10/CXCL10, and MIP-1a/CCL3) were induced and sustained in a largely dose-dependent manner through Day 21. The sustained increase in cytokines was consistent with an increase in circulating innate immune cells, such as NK and myeloid cells. Furthermore, evidence of adaptive immune cell activation was observed as indicated by expression of Ly6C, ICOS and Ki67, which were increased on CD8+ T cells, CD4+ T cells (Ki67, ICOS), and B cells (Ly6C).ConclusionsThese data show that a single IT injection of TransCon TLR7/8 Agonist can elicit sustained expression of key cytokines and chemokines, promote innate immune cell mobilization, activate adaptive immune cells, and mediate robust anti-tumor activity. The levels of the cytokines remained relatively low through the observation period of 21 days, suggesting a low risk of systemic cytokine-associated adverse events. The increase in activated B, T, and NK cells in blood was associated with induction of a potent anti-tumor response, further supporting TransCon TLR7/8 Agonist as a novel and potentially efficacious PRRA therapy. A clinical trial to evaluate its safety and efficacy in cancer patients is currently underway (transcendIT-101; NCT04799054).Ethics ApprovalThe animal studies described were performed in accordance with the ‘Guide for the Care and Use of Laboratory Animals: Eighth Edition’ and approved by the institutional animal care and use committee (IACUC).
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McArdel SL, Dugast AS, Hoover ME, Bollampalli A, Hong E, Castano Z, Leonard SC, Pawar S, Mellen J, Muriuki K, McLaughlin DC, Bayhi N, Carpenter CL, Turka LA, Wickham TJ, Elloul S. Anti-tumor effects of RTX-240: an engineered red blood cell expressing 4-1BB ligand and interleukin-15. Cancer Immunol Immunother 2021; 70:2701-2719. [PMID: 34244816 PMCID: PMC8360899 DOI: 10.1007/s00262-021-03001-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 02/26/2021] [Accepted: 06/28/2021] [Indexed: 01/22/2023]
Abstract
Recombinant agonists that activate co-stimulatory and cytokine receptors have shown limited clinical anticancer utility, potentially due to narrow therapeutic windows, the need for coordinated activation of co-stimulatory and cytokine pathways and the failure of agonistic antibodies to recapitulate signaling by endogenous ligands. RTX-240 is a genetically engineered red blood cell expressing 4-1BBL and IL-15/IL-15Rα fusion (IL-15TP). RTX-240 is designed to potently and simultaneously stimulate the 4-1BB and IL-15 pathways, thereby activating and expanding T cells and NK cells, while potentially offering an improved safety profile through restricted biodistribution. We assessed the ability of RTX-240 to expand and activate T cells and NK cells and evaluated the in vivo efficacy, pharmacodynamics and tolerability using murine models. Treatment of PBMCs with RTX-240 induced T cell and NK cell activation and proliferation. In vivo studies using mRBC-240, a mouse surrogate for RTX-240, revealed biodistribution predominantly to the red pulp of the spleen, leading to CD8 + T cell and NK cell expansion. mRBC-240 was efficacious in a B16-F10 melanoma model and led to increased NK cell infiltration into the lungs. mRBC-240 significantly inhibited CT26 tumor growth, in association with an increase in tumor-infiltrating proliferating and cytotoxic CD8 + T cells. mRBC-240 was tolerated and showed no evidence of hepatic injury at the highest feasible dose, compared with a 4-1BB agonistic antibody. RTX-240 promotes T cell and NK cell activity in preclinical models and shows efficacy and an improved safety profile. Based on these data, RTX-240 is now being evaluated in a clinical trial.
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Affiliation(s)
| | | | | | | | - Enping Hong
- Rubius Therapeutics® Inc., Cambridge, MA, USA
| | | | | | - Sneha Pawar
- Rubius Therapeutics® Inc., Cambridge, MA, USA
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Hodak E, Sherman S, Papadavid E, Bagot M, Querfeld C, Quaglino P, Prince HM, Ortiz-Romero PL, Stadler R, Knobler R, Guenova E, Estrach T, Patsatsi A, Leshem YA, Prague-Naveh H, Berti E, Alberti-Violetti S, Cowan R, Jonak C, Nikolaou V, Mitteldorf C, Akilov O, Geskin L, Matin R, Beylot-Barry M, Vakeva L, Sanches JA, Servitje O, Weatherhead S, Wobser M, Yoo J, Bayne M, Bates A, Dunnill G, Marschalko M, Buschots AM, Wehkamp U, Evison F, Hong E, Amitay-Laish I, Stranzenbach R, Vermeer M, Willemze R, Kempf W, Cerroni L, Whittaker S, Kim YH, Scarisbrick JJ. Should we be imaging lymph nodes at initial diagnosis of early-stage mycosis fungoides? Results from the PROspective Cutaneous Lymphoma International Prognostic Index (PROCLIPI) international study. Br J Dermatol 2021; 184:524-531. [PMID: 32574377 DOI: 10.1111/bjd.19303] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/30/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Early-stage mycosis fungoides (MF) includes involvement of dermatopathic lymph nodes (LNs) or early lymphomatous LNs. There is a lack of unanimity among current guidelines regarding the indications for initial staging imaging in early-stage presentation of MF in the absence of enlarged palpable LNs. OBJECTIVES To investigate how often imaging is performed in patients with early-stage presentation of MF, to assess the yield of LN imaging, and to determine what disease characteristics promoted imaging. METHODS A review of clinicopathologically confirmed newly diagnosed patients with cutaneous patch/plaque (T1/T2) MF from PROspective Cutaneous Lymphoma International Prognostic Index (PROCLIPI) data. RESULTS PROCLIPI enrolled 375 patients with stage T1/T2 MF: 304 with classical MF and 71 with folliculotropic MF. Imaging was performed in 169 patients (45%): 83 with computed tomography, 18 with positron emission tomography-computed tomography and 68 with ultrasound. Only nine of these (5%) had palpable enlarged (≥ 15 mm) LNs, with an over-representation of plaques, irrespectively of the 10% body surface area cutoff that distinguishes T1 from T2. Folliculotropic MF was not more frequently imaged than classical MF. Radiologically enlarged LNs (≥ 15 mm) were detected in 30 patients (18%); only seven had clinical lymphadenopathy. On multivariate analysis, plaque presentation was the sole parameter significantly associated with radiologically enlarged LNs. Imaging of only clinically enlarged LNs upstaged 4% of patients (seven of 169) to at least IIA, whereas nonselective imaging upstaged another 14% (24 of 169). LN biopsy, performed in eight of 30 patients, identified N3 (extensive lymphomatous involvement) in two and N1 (dermatopathic changes) in six. CONCLUSIONS Physical examination was a poor determinant of LN enlargement or involvement. Presence of plaques was associated with a significant increase in identification of enlarged or involved LNs in patients with early-stage presentation of MF, which may be important when deciding who to image. Imaging increases the detection rate of stage IIA MF, and identifies rare cases of extensive lymphomatous nodes, upstaging them to advanced-stage IVA2.
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Affiliation(s)
- E Hodak
- Division of Dermatology, Rabin Medical Center - Beilinson Hospital, Petach Tikva; affiliated to Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - S Sherman
- Division of Dermatology, Rabin Medical Center - Beilinson Hospital, Petach Tikva; affiliated to Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - E Papadavid
- Athens University Medical School, Athens, Greece
| | - M Bagot
- Hospital St Louis, Paris, France
| | - C Querfeld
- City of Hope National Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - P Quaglino
- Dermatologic Clinic, University of Turin Medical School, Turin, Italy
| | - H M Prince
- Sir Peter MacCallum Cancer Centre, University of Melbourne, Melbourne, VIC, Australia
| | - P L Ortiz-Romero
- Department of Dermatology, Hospital 12 de Octubre, Medical School, University Complutense, Madrid, Spain
| | - R Stadler
- Johannes Wesling University Medical Centre, Minden, Germany
| | - R Knobler
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - E Guenova
- University Hospital Zurich, Zurich, Switzerland
| | - T Estrach
- Hospital Clinico, University of Barcelona, Barcelona, Spain
| | - A Patsatsi
- Aristotle University of Thessaloniki, Papageorgiou General Hospital, Thessaloniki, Greece
| | - Y A Leshem
- Division of Dermatology, Rabin Medical Center - Beilinson Hospital, Petach Tikva; affiliated to Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - H Prague-Naveh
- Division of Dermatology, Rabin Medical Center - Beilinson Hospital, Petach Tikva; affiliated to Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - E Berti
- University of Milan, Milan, Italy
| | | | - R Cowan
- Christie Hospital, Manchester, UK
| | - C Jonak
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - V Nikolaou
- Athens University Medical School, Athens, Greece
| | - C Mitteldorf
- HELIOS Klinikum Hildesheim GmbH, University Medical Centre Göttingen, Göttingen, Germany
| | - O Akilov
- University of Pittsburgh School of Medicine, Pennsylvania, PA, USA
| | - L Geskin
- University of Columbia, New York, NY, USA
| | - R Matin
- Churchill Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | | | - L Vakeva
- Helsinki University Central Hospital, Helsinki, Finland
| | - J A Sanches
- University of São Paulo Medical School, São Paulo, SP, Brazil
| | - O Servitje
- Hospital Universatari de Bellvitge, Barcelona, Spain
| | | | - M Wobser
- University Hospital Wuerzburg, Wuerzburg, Germany
| | - J Yoo
- University Hospital Birmingham, Birmingham, UK
| | | | - A Bates
- University Hospital Southampton, Southampton, UK
| | - G Dunnill
- University Hospital Bristol, Bristol, UK
| | | | | | - U Wehkamp
- University Hospital Kiel, Kiel, Germany
| | - F Evison
- University Hospital Birmingham, Birmingham, UK
| | - E Hong
- Stanford University Medical Center, Stanford, CA, USA
| | - I Amitay-Laish
- Division of Dermatology, Rabin Medical Center - Beilinson Hospital, Petach Tikva; affiliated to Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - R Stranzenbach
- Johannes Wesling University Medical Centre, Minden, Germany
| | - M Vermeer
- Leiden University Medical Centre, Leiden, the Netherlands
| | - R Willemze
- Leiden University Medical Centre, Leiden, the Netherlands
| | - W Kempf
- Kempf and PFlatz, Histologische Diagnostik, Zurich, Switzerland
| | - L Cerroni
- Department of Dermatology, Research Unit Dermatopathology, Medical University of Graz, Graz, Austria
| | | | - Y H Kim
- Stanford University Medical Center, Stanford, CA, USA
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van den Berg I, van de Weerd S, Roodhart JML, Vink GR, van den Braak RRJC, Jimenez CR, Elias SG, van Vliet D, Koelink M, Hong E, van Grevenstein WMU, van Oijen MGH, Beets-Tan RGH, van Krieken JHJM, IJzermans JNM, Medema JP, Koopman M. Improving clinical management of colon cancer through CONNECTION, a nation-wide colon cancer registry and stratification effort (CONNECTION II trial): rationale and protocol of a single arm intervention study. BMC Cancer 2020; 20:776. [PMID: 32811457 PMCID: PMC7433093 DOI: 10.1186/s12885-020-07236-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 05/15/2020] [Accepted: 07/29/2020] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND It is estimated that around 15-30% of patients with early stage colon cancer benefit from adjuvant chemotherapy. We are currently not capable of upfront selection of patients who benefit from chemotherapy, which indicates the need for additional predictive markers for response to chemotherapy. It has been shown that the consensus molecular subtypes (CMSs), defined by RNA-profiling, have prognostic and/or predictive value. Due to postoperative timing of chemotherapy in current guidelines, tumor response to chemotherapy per CMS is not known, which makes the differentiation between the prognostic and predictive value impossible. Therefore, we propose to assess the tumor response per CMS in the neoadjuvant chemotherapy setting. This will provide us with clear data on the predictive value for chemotherapy response of the CMSs. METHODS In this prospective, single arm, multicenter intervention study, 262 patients with resectable microsatellite stable cT3-4NxM0 colon cancer will be treated with two courses of neoadjuvant and two courses of adjuvant capecitabine and oxaliplatin. The primary endpoint is the pathological tumor response to neoadjuvant chemotherapy per CMS. Secondary endpoints are radiological tumor response, the prognostic value of these responses for recurrence free survival and overall survival and the differences in CMS classification of the same tumor before and after neoadjuvant chemotherapy. The study is scheduled to be performed in 8-10 Dutch hospitals. The first patient was included in February 2020. DISCUSSION Patient selection for adjuvant chemotherapy in early stage colon cancer is far from optimal. The CMS classification is a promising new biomarker, but a solid chemotherapy response assessment per subtype is lacking. In this study we will investigate whether CMS classification can be of added value in clinical decision making by analyzing the predictive value for chemotherapy response. This study can provide the results necessary to proceed to future studies in which (neo) adjuvant chemotherapy may be withhold in patients with a specific CMS subtype, who show no benefit from chemotherapy and for whom possible new treatments can be investigated. TRIAL REGISTRATION This study has been registered in the Netherlands Trial Register (NL8177) at 11-26-2019, https://www.trialregister.nl/trial/8177 . The study has been approved by the medical ethics committee Utrecht (MEC18/712).
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Affiliation(s)
- I van den Berg
- Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
- Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - S van de Weerd
- Laboratory for Experimental Oncology and Radiobiology, Center for Experimental and Molecular Medicine, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105, AZ, Amsterdam, The Netherlands
- Department of Pathology, Radboud University Medical Centre, Nijmegen, the Netherlands
- Oncode Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - J M L Roodhart
- Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - G R Vink
- Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
- Netherlands Comprehensive Cancer Organisation, department of research, Utrecht, the Netherlands
| | | | - C R Jimenez
- Department of Medical Oncology, Amsterdam UMC- location VUmc, Amsterdam, the Netherlands
| | - S G Elias
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - D van Vliet
- Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - M Koelink
- Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - E Hong
- Department of radiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - W M U van Grevenstein
- Department of Surgery, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - M G H van Oijen
- Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - R G H Beets-Tan
- Department of radiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - J H J M van Krieken
- Department of Pathology, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - J N M IJzermans
- Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - J P Medema
- Laboratory for Experimental Oncology and Radiobiology, Center for Experimental and Molecular Medicine, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105, AZ, Amsterdam, The Netherlands.
- Oncode Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.
| | - M Koopman
- Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
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Ruiz-Hernández A, Cabrera-Becerra S, Vera-Juárez G, Hong E, Fengyang H, Arauz J, Villafaña S. Diabetic nephropathy produces alterations in the tissue expression profile of the orphan receptors GPR149, GPR153, GPR176, TAAR3, TAAR5 and TAAR9 in Wistar rats. Nucleosides Nucleotides Nucleic Acids 2020; 39:1150-1161. [PMID: 32643557 DOI: 10.1080/15257770.2020.1780437] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Diabetes mellitus is a debilitating health care problem affecting 382 million people around the world and one of the most common complications is diabetic nephropathy. For this reason, it is important to try to identify new mechanisms that could be involved in diabetes. A new class of receptors has been reported, called orphan receptors because the associated ligand and signaling cascades are unknown. These receptors could be an important source of targets for the treatment of many diseases such as diabetes and its associated complications like diabetic nephropathy. Therefore, the aim of this work was to study expression of the orphan receptors GPR149, GPR153, GPR176, TAAR3, TAAR5 and TAAR9 in the kidney of diabetic rats. We used male Wistar rats at 10-12 weeks of age. Diabetes was induced by a single dose of streptozotocin (60 mg/kg i.p.). After 4 weeks, tissues were obtained, and the expression of the mRNAs was measured by RT-PCR. Our results showed that the orphan receptors are expressed in a different way in the kidney. In conclusion, we suggest that orphan receptors could be involved in the development of diabetic nephropathy.
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Affiliation(s)
- A Ruiz-Hernández
- Departamento de Farmacología, Facultad de Medicina, Universidad Autónoma de Baja California, Mexicali, Baja California, México
| | - S Cabrera-Becerra
- Laboratorio de Señalización Intracelular, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Ciudad de México, México
| | - G Vera-Juárez
- Laboratorio de Señalización Intracelular, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Ciudad de México, México
| | - E Hong
- Departamento de Farmacología y Toxicología, Hospital Infantil de México Federico Gómez (HIMFG), Ciudad de México, México.,Departamento de Farmacología, Centro de Investigación y de Estudios Avanzados, Ciudad de México, México
| | - H Fengyang
- Departamento de Farmacología y Toxicología, Hospital Infantil de México Federico Gómez (HIMFG), Ciudad de México, México
| | - J Arauz
- Departamento de Farmacología, Facultad de Medicina, Universidad Autónoma de Baja California, Mexicali, Baja California, México
| | - S Villafaña
- Laboratorio de Señalización Intracelular, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Ciudad de México, México
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Barret A, Clinard F, Taha M, Girard I, Hong E, Tessier S, Zurbaran M, de Bort C, Antona D, Deghmane A, Jestin C, Dupont H, Lévy-Bruhl D, Tillier C. Cluster of serogroup W invasive meningococcal disease in a university campus. Med Mal Infect 2020; 50:335-341. [DOI: 10.1016/j.medmal.2019.10.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 03/01/2019] [Accepted: 10/04/2019] [Indexed: 11/15/2022]
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18
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Emery P, Suh CH, Weinblatt ME, Smolen JS, Keystone EC, Genovese M, Vencovsky J, Kay J, Hong E, Baek Y, Ghil J. Impact of immunogenicity on efficacy and tolerability of tumour necrosis factor inhibitors: pooled analysis of biosimilar studies in rheumatoid arthritis. Scand J Rheumatol 2020; 49:361-370. [PMID: 32468892 DOI: 10.1080/03009742.2020.1732458] [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] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Objective: SB4, SB2, and SB5 are biosimilars of etanercept (ETN), infliximab (INF), and adalimumab (ADA), respectively. This pooled analysis evaluated the immunogenicity of these treatments across three phase III randomized controlled trials of patients with rheumatoid arthritis (RA). Methods: Patients had to have at least one anti-drug antibody (ADAb) assessment up to the time of the primary endpoint from each study (week 24 in SB4 and SB5 studies; week 30 in SB2 study). The effect of ADAbs on American College of Rheumatology 20% (ACR20) response and the incidences of injection-site reactions (ISRs)/infusion-related reactions (IRRs) were evaluated. Results: The study included 1709 patients. The cumulative incidences of ADAbs were 30.3% in the all-treatments-combined group, 29.1% in the biosimilars combined group, and 31.5% in the reference products combined group. ACR20 response rates were significantly lower in ADAb-positive patients in the all-treatments-combined [odds ratio (95% confidence interval) 1.77 (1.37, 2.27), p < 0.0001], biosimilars combined [2.24 (1.53, 3.30), p < 0.0001], and reference products combined [1.49 (1.06, 2.09), p = 0.0225] groups. ADAb-positive patients also had a higher likelihood of developing ISRs/IRRs in the all-treatments-combined group [0.56 (0.31, 1.01), p = 0.0550], predominantly due to the results observed with SB2 + INF combined rather than with SB4 + ETN or SB5 + ADA combined. Conclusion: In this pooled analysis, ADAbs were associated with reduced efficacy in patients with RA treated with biosimilars (SB4, SB2, and SB5) or their reference products (ETN, INF, and ADA). ADAbs were associated with an increased incidence of ISRs/IRRs in those treated with SB2 + INF. Clinical trial registration numbers: NCT01936181 (SB2 study), NCT01895309 (SB4 study), and NCT02167139 (SB5 study).
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Affiliation(s)
- P Emery
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Chapel Allerton Hospital , Leeds, UK.,NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospitals NHS Trust , Leeds, UK
| | - C-H Suh
- Department of Rheumatology, Ajou University School of Medicine , Suwon, Republic of Korea
| | - M E Weinblatt
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital , Boston, MA, USA
| | - J S Smolen
- Division of Rheumatology, Department of Medicine, Medical University of Vienna , Vienna, Austria
| | - E C Keystone
- Division of Rheumatology, Mount Sinai Hospital, University of Toronto , Toronto, ON, Canada
| | - M Genovese
- Division of Immunology and Rheumatology, Stanford University Medical Center, Stanford University School of Medicine , Palo Alto, CA, USA
| | - J Vencovsky
- Department of Rheumatology, Institute of Rheumatology , Prague, Czech Republic
| | - J Kay
- Division of Rheumatology, Department of Medicine, UMass Memorial Medical Center and University of Massachusetts Medical School , Worcester, MA, USA
| | - E Hong
- Samsung Bioepis Co. Ltd , Incheon, Republic of Korea
| | - Y Baek
- Samsung Bioepis Co. Ltd , Incheon, Republic of Korea
| | - J Ghil
- Samsung Bioepis Co. Ltd , Incheon, Republic of Korea
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Brik A, Terrade A, Hong E, Deghmane A, Taha MK, Bouafsoun A, Khmiri M, Boussetta K, Boukhir S, Jaballah NB, Kechrid A, Smaoui H. Phenotypic and genotypic characterization of meningococcal isolates in Tunis, Tunisia: High diversity and impact on vaccination strategies. Int J Infect Dis 2019; 91:73-78. [PMID: 31756567 DOI: 10.1016/j.ijid.2019.11.013] [Citation(s) in RCA: 8] [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] [Received: 09/05/2019] [Revised: 11/07/2019] [Accepted: 11/12/2019] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVES The aim of this study was to characterize Neisseria meningitidis (Men) isolates in Tunisian paediatric patients with invasive meningococcal disease (IMD) in order to target therapeutic and preventive strategies. METHODS Fifty-nine isolates of Men and four cerebrospinal fluid samples that were culture-negative but Men-positive by PCR (NC-MenPPCR) (2009-2016) were collected from IMD patients. Isolates were analysed for their antimicrobial susceptibility. Whole-genome sequencing (WGS) was used to characterize isolates and multilocus sequence typing for NC-MenPPCR. Coverage of Men serogroup B (MenB) was determined by Genetic Meningococcal Antigen Typing System (gMATS) and fHbp expression by ELISA. RESULTS MenB was the predominant type (88.9%). The majority of isolates (81%) had reduced susceptibility to penicillin G with altered penA alleles. The clonal complex CC461 (27.1%) was the most frequent. Among the MenB vaccine targets neisserial heparin binding antigen (NHBA) and fHbp, the predominant variants were NHBA118 (30.8%) and fHbp peptide 47 (25%), respectively. The nadA gene was present in 17.3% of isolates. Using gMATS, 36.5% of MenB were predicted to be covered by the 4CMenB vaccine. ELISA showed that 92.4% of the MenB were expected to be killed by anti-fHbp antibodies. CONCLUSIONS MenB was the leading serogroup in IMD, and more than 90% had a sufficient level of fHbp expression for vaccine coverage. The study results will be useful for the Tunisian vaccination programme.
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Affiliation(s)
- A Brik
- University of Tunis El Manar, Children's Hospital of Tunis, Laboratory of Microbiology, LR18ES39, Beb Saadoun, 1007 Tunis, Tunisia; Institut Pasteur, Invasive Bacterial Infections Unit, 25-28 Rue du Docteur Roux, 75015 Paris, France
| | - A Terrade
- Institut Pasteur, Invasive Bacterial Infections Unit, 25-28 Rue du Docteur Roux, 75015 Paris, France
| | - E Hong
- Institut Pasteur, Invasive Bacterial Infections Unit, 25-28 Rue du Docteur Roux, 75015 Paris, France
| | - A Deghmane
- Institut Pasteur, Invasive Bacterial Infections Unit, 25-28 Rue du Docteur Roux, 75015 Paris, France
| | - M K Taha
- Institut Pasteur, Invasive Bacterial Infections Unit, 25-28 Rue du Docteur Roux, 75015 Paris, France
| | - A Bouafsoun
- University of Tunis El Manar, Children's Hospital of Tunis, Laboratory of Microbiology, LR18ES39, Beb Saadoun, 1007 Tunis, Tunisia
| | - M Khmiri
- Department of Paediatrics A, Children's Hospital of Tunis, Beb Saadoun, 1007 Tunis, Tunisia
| | - K Boussetta
- Department of Paediatrics B, Children's Hospital of Tunis, Beb Saadoun, 1007 Tunis, Tunisia
| | - S Boukhir
- Department of Paediatrics C, Children's Hospital of Tunis, Beb Saadoun, 1007 Tunis, Tunisia
| | - N Ben Jaballah
- Intensive Care Unit, Béchir Hamza Children's Hospital of Tunis, Beb Saadoun, 1007 Tunis, Tunisia
| | - A Kechrid
- University of Tunis El Manar, Children's Hospital of Tunis, Laboratory of Microbiology, LR18ES39, Beb Saadoun, 1007 Tunis, Tunisia
| | - H Smaoui
- University of Tunis El Manar, Children's Hospital of Tunis, Laboratory of Microbiology, LR18ES39, Beb Saadoun, 1007 Tunis, Tunisia.
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Scarisbrick JJ, Quaglino P, Prince HM, Papadavid E, Hodak E, Bagot M, Servitje O, Berti E, Ortiz-Romero P, Stadler R, Patsatsi A, Knobler R, Guenova E, Child F, Whittaker S, Nikolaou V, Tomasini C, Amitay I, Prag Naveh H, Ram-Wolff C, Battistella M, Alberti-Violetti S, Stranzenbach R, Gargallo V, Muniesa C, Koletsa T, Jonak C, Porkert S, Mitteldorf C, Estrach T, Combalia A, Marschalko M, Csomor J, Szepesi A, Cozzio A, Dummer R, Pimpinelli N, Grandi V, Beylot-Barry M, Pham-Ledard A, Wobser M, Geissinger E, Wehkamp U, Weichenthal M, Cowan R, Parry E, Harris J, Wachsmuth R, Turner D, Bates A, Healy E, Trautinger F, Latzka J, Yoo J, Vydianath B, Amel-Kashipaz R, Marinos L, Oikonomidi A, Stratigos A, Vignon-Pennamen MD, Battistella M, Climent F, Gonzalez-Barca E, Georgiou E, Senetta R, Zinzani P, Vakeva L, Ranki A, Busschots AM, Hauben E, Bervoets A, Woei-A-Jin FJSH, Matin R, Collins G, Weatherhead S, Frew J, Bayne M, Dunnill G, McKay P, Arumainathan A, Azurdia R, Benstead K, Twigger R, Rieger K, Brown R, Sanches JA, Miyashiro D, Akilov O, McCann S, Sahi H, Damasco FM, Querfeld C, Folkes A, Bur C, Klemke CD, Enz P, Pujol R, Quint K, Geskin L, Hong E, Evison F, Vermeer M, Cerroni L, Kempf W, Kim Y, Willemze R. The PROCLIPI international registry of early-stage mycosis fungoides identifies substantial diagnostic delay in most patients. Br J Dermatol 2019; 181:350-357. [PMID: 30267549 DOI: 10.1111/bjd.17258] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/25/2018] [Indexed: 12/16/2022]
Abstract
BACKGROUND Survival in mycosis fungoides (MF) is varied and may be poor. The PROCLIPI (PROspective Cutaneous Lymphoma International Prognostic Index) study is a web-based data collection system for early-stage MF with legal data-sharing agreements permitting international collaboration in a rare cancer with complex pathology. Clinicopathological data must be 100% complete and in-built intelligence in the database system ensures accurate staging. OBJECTIVES To develop a prognostic index for MF. METHODS Predefined datasets for clinical, haematological, radiological, immunohistochemical, genotypic, treatment and quality of life are collected at first diagnosis of MF and annually to test against survival. Biobanked tissue samples are recorded within a Federated Biobank for translational studies. RESULTS In total, 430 patients were enrolled from 29 centres in 15 countries spanning five continents. Altogether, 348 were confirmed as having early-stage MF at central review. The majority had classical MF (81·6%) with a CD4 phenotype (88·2%). Folliculotropic MF was diagnosed in 17·8%. Most presented with stage I (IA: 49·4%; IB: 42·8%), but 7·8% presented with enlarged lymph nodes (stage IIA). A diagnostic delay between first symptom development and initial diagnosis was frequent [85·6%; median delay 36 months (interquartile range 12-90)]. This highlights the difficulties in accurate diagnosis, which includes lack of a singular diagnostic test for MF. CONCLUSIONS This confirmed early-stage MF cohort is being followed-up to identify prognostic factors, which may allow better management and improve survival by identifying patients at risk of disease progression. This study design is a useful model for collaboration in other rare diseases, especially where pathological diagnosis can be complex.
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Affiliation(s)
- J J Scarisbrick
- European Co-ordinating PROCLIPI Centre for PROCLIPI, University Hospitals Birmingham, Birmingham, U.K
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
- Member of the UK Cutaneous Lymphoma Group
| | - P Quaglino
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - H M Prince
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - E Papadavid
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - E Hodak
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - M Bagot
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - O Servitje
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - E Berti
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - P Ortiz-Romero
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - R Stadler
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - A Patsatsi
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - R Knobler
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - E Guenova
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - F Child
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the UK Cutaneous Lymphoma Group
| | - S Whittaker
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
- Member of the UK Cutaneous Lymphoma Group
| | - V Nikolaou
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - C Tomasini
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - I Amitay
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - H Prag Naveh
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - C Ram-Wolff
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - M Battistella
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - S Alberti-Violetti
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - R Stranzenbach
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - V Gargallo
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - C Muniesa
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - T Koletsa
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - C Jonak
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - S Porkert
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - C Mitteldorf
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - T Estrach
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - A Combalia
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - M Marschalko
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - J Csomor
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - A Szepesi
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - A Cozzio
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - R Dummer
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - N Pimpinelli
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - V Grandi
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - M Beylot-Barry
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - A Pham-Ledard
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - M Wobser
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - E Geissinger
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - U Wehkamp
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - M Weichenthal
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - R Cowan
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the UK Cutaneous Lymphoma Group
| | - E Parry
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the UK Cutaneous Lymphoma Group
| | - J Harris
- Member of the UK Cutaneous Lymphoma Group
| | - R Wachsmuth
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the UK Cutaneous Lymphoma Group
| | - D Turner
- Member of the UK Cutaneous Lymphoma Group
| | - A Bates
- Member of the UK Cutaneous Lymphoma Group
| | - E Healy
- Member of the UK Cutaneous Lymphoma Group
| | - F Trautinger
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - J Latzka
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - J Yoo
- European Co-ordinating PROCLIPI Centre for PROCLIPI, University Hospitals Birmingham, Birmingham, U.K
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - B Vydianath
- European Co-ordinating PROCLIPI Centre for PROCLIPI, University Hospitals Birmingham, Birmingham, U.K
| | - R Amel-Kashipaz
- European Co-ordinating PROCLIPI Centre for PROCLIPI, University Hospitals Birmingham, Birmingham, U.K
| | - L Marinos
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - A Oikonomidi
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - A Stratigos
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - M-D Vignon-Pennamen
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - M Battistella
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - F Climent
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - E Gonzalez-Barca
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - E Georgiou
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - R Senetta
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - P Zinzani
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - L Vakeva
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - A Ranki
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - A-M Busschots
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - E Hauben
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - A Bervoets
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - F J S H Woei-A-Jin
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - R Matin
- Member of the UK Cutaneous Lymphoma Group
| | - G Collins
- Member of the UK Cutaneous Lymphoma Group
| | | | - J Frew
- Member of the UK Cutaneous Lymphoma Group
| | - M Bayne
- Member of the UK Cutaneous Lymphoma Group
| | - G Dunnill
- Member of the UK Cutaneous Lymphoma Group
| | - P McKay
- Member of the UK Cutaneous Lymphoma Group
| | | | - R Azurdia
- Member of the UK Cutaneous Lymphoma Group
| | - K Benstead
- Member of the UK Cutaneous Lymphoma Group
| | - R Twigger
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - K Rieger
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - R Brown
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - J A Sanches
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - D Miyashiro
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - O Akilov
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - S McCann
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - H Sahi
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - F M Damasco
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - C Querfeld
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - A Folkes
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - C Bur
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - C-D Klemke
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - P Enz
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - R Pujol
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - K Quint
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - L Geskin
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - E Hong
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - F Evison
- European Co-ordinating PROCLIPI Centre for PROCLIPI, University Hospitals Birmingham, Birmingham, U.K
| | - M Vermeer
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - L Cerroni
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - W Kempf
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
| | - Y Kim
- Member of the Cutaneous Lymphoma International Consortium (CLIC)
| | - R Willemze
- Member of the European Organisation of Research and Treatment of Cancer (EORTC), Cutaneous Lymphoma Task Force
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Dugast AS, Hong E, Hoover M, Bollampalli A, McLaughlin DC, Bhate O, Lyford TJ, Nissen TS, Carpenter CL, Wickham TJ, Elloul S. Abstract 3256: RTX-IL-12, an allogeneic red cell therapeutic expressing IL-12, exhibits potent in vitro and in vivo activity and favorable safety profile. Cancer Res 2019. [DOI: 10.1158/1538-7445.am2019-3256] [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] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Recombinant IL-12 is a potent cytokine that has held significant promise as an immunotherapeutic. In preclinical studies, recombinant IL-12 has impressive anti-tumor activity; however toxicity and a narrow therapeutic window halted development in humans. To address these limitations, Rubius Therapeutics has developed genetically engineered red cell therapeutics (RCTs) with cell surface expression of IL-12 alone (RTX-IL-12) or in combination with co-stimulatory or other cytokine molecules. These cells present ligands in their native form that potently activate and expand both T and NK cells through potent cell-cell interactions. On-target, off-tissue toxicity of RCTs may be limited due to their biodistribution, which is restricted to the vascular system. Based on its reported role in promoting a TH1 response and proliferation of cytotoxic NK and CD8 T cells, RTX-IL-12 activity was evaluated in vitro and demonstrated proliferation of human CD8 T cells (2-3 fold), Th1 differentiation of naïve CD4 T cells, IFNγproduction (6-11 fold increase over control), as well as NK cell activation and cytotoxicity against K562 targets (2-5 fold increase over control). To evaluate in vivoimmune response, anti-tumor activity and safety, a mouse surrogate red cell therapeutic, mRBC-IL-12, was developed by chemically conjugating recombinant Fc-IL-12 to mouse red blood cells. This surrogate overcame the rapid clearance of human red cells in mice. Administration of mRBC-IL-12 (1X109cells) to C57Bl6 mice that received B16F10 melanoma cells IV, showed a 52% decrease in the number of lung metastases and was associated with increased proliferating and cytotoxic CD8 and NK cells in the lungs (p=0.0002). Administration of mRBC-IL-12 (1X109cells) to mice bearing B16F10 and MC38 subcutaneous models exhibited 82% and 80% tumor growth inhibition, respectively. When combined with anti-PD1 treatment, mRBC-IL-12 (1X109cells) efficacy was improved in these two models and showed 86% and 85% tumor growth inhibition, respectively. Efficacy was accompanied by an increase in survival (p=0.0004 B16F10, p=0.0003 MC38 ) and the infiltration of M1 macrophages (p=0.007) into the tumor. Mice treated with the highest feasible dose of mRBC-IL-12 displayed no significant body weight loss and 3-10-fold lower serum IFNg levels compared to soluble rec. Fc-IL-12. By combining IL-12 with IL-15TP or 4-1BBL on the same red cell, tumor growth was strongly inhibited and in some cases improved over mRBC-IL-12 alone (TGI 46% and 63% in B16F10 SC, TGI 83%, 77% in MC38 and 78%, 70% in B16F10 IV). In summary, the data demonstrate that sequestering IL-12 in the vasculature through expression on red cells drives significant reductions in tumor growth, while improving the tolerability profile of the cytokine,supporting further testing in cancer patients.
Citation Format: Anne-Sophie Dugast, Enping Hong, Maegan Hoover, Arjun Bollampalli, Douglas C. McLaughlin, Omkar Bhate, Timothy J. Lyford, Torben Straight Nissen, Christopher L. Carpenter, Thomas J. Wickham, Sivan Elloul. RTX-IL-12, an allogeneic red cell therapeutic expressing IL-12, exhibits potent in vitro and in vivo activity and favorable safety profile [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2019; 2019 Mar 29-Apr 3; Atlanta, GA. Philadelphia (PA): AACR; Cancer Res 2019;79(13 Suppl):Abstract nr 3256.
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Dugast AS, McArdel S, Hoover M, Hong E, Leonard SC, Bollampalli A, McLaughlin DC, Mellen J, Nissen TS, Carpenter CL, Wickham TJ, Elloul S. Abstract 3272: RTX-212, an allogeneic red cell therapeutic expressing 4-1BBL and IL-15TP, exhibits potent in vitro and in vivo activity and a favorable safety profile. Cancer Res 2019. [DOI: 10.1158/1538-7445.am2019-3272] [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] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Recombinant agonists that activate co-stimulatory and cytokine receptors have shown limited clinical activity perhaps due to 1) toxicity; 2) a need for coordinated activation of co-stimulatory and cytokine pathways; or 3) the failure of agonist antibodies to recapitulate signaling by endogenous ligands. To address these limitations, Rubius Therapeutics developed genetically engineered red cells with cell surface expression of both co-stimulatory and cytokine ligands, which present ligands in their native form through cell-cell contact to potently activate and expand both T and NK cells. On-target, off-tissue toxicity may be limited due their biodistribution, which is restricted to the vascular system. IL-15 is known to promote NK survival and CD8 T cell memory and 4-1BB agonists are known to promote T cell prolioferation and survival. Rubius Therapeutics has developed RTX-212, an allogeneic red cell therapeutic genetically engineered to co-express 4-1BBL and an IL-15/IL-15Rαfusion (IL-15TP). In vitro assays demonstrated that the combination of both ligands on RTX-212 expanded both memory CD8 T cells (2.5-fold) and NK cells (10-15-fold), in the absence of TCR stimulation. RTX-212 further induced dramatic proliferation of CD8 T cells and CD4 T cells in the presence of TCR stimulation with increased IFNγsecretion. In addition to the synergistic effects of 4-1BBL and IL-15TP, each molecule provided complementary functions that expanded the activity of RTX-212 beyond RTX-4-1BBL or RTX-IL-15TP alone. IL-15TP uniquely activated NK cytotoxicity and ADCC, while 4-1BBL uniquely stimulated CD4 and CD8 T cell proliferation and production of IFNγ. To evaluate in vivo immune responses, anti-tumor activity and safety, a mouse surrogate therapeutic, mRBC-212, was developed where recombinant Fc-IL-15-sushi and m4-1BBL were chemically conjugated to mouse red blood cells. This surrogate overcame the rapid clearance of human red cells in mice. Intravanous administration of mRBC-212 to C57Bl6 mice that received B16F10 melanoma cells IV, showed a 66% decrease in the number of lung metastases compared to control mice (p=0.0001) and was associated with a significant increase in NK cell infiltration into the lungs (p=0.02). In a CT26 tumor model, mRBC-212 treated mice exhibited 55% tumor growth inhibition, which was accompanied by a 1.7-fold increase in the tumor infiltration of proliferating and cytotoxic CD8 T cells. Mice treated with the highest feasible dose of mRBC-212 showed no change in serum transaminases, infiltration of CD8 T cells and macrophages to the liver or liver inflammation score compared to agonistic 4-1BB antibodies treated mice. Taken together, these data indicate that RTX-212 has the potential to be an effective therapy with an improved safety profile compared to 4-1BB agonist antibodies and IL-15 agonists, supporting its clinical development.
Citation Format: Anne-Sophie Dugast, Shannon McArdel, Maegan Hoover, Enping Hong, Shannon Curtis Leonard, Arjun Bollampalli, Douglas C. McLaughlin, Jennifer Mellen, Torben Straight Nissen, Christopher L. Carpenter, Thomas J. Wickham, Sivan Elloul. RTX-212, an allogeneic red cell therapeutic expressing 4-1BBL and IL-15TP, exhibits potent in vitro and in vivo activity and a favorable safety profile [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2019; 2019 Mar 29-Apr 3; Atlanta, GA. Philadelphia (PA): AACR; Cancer Res 2019;79(13 Suppl):Abstract nr 3272.
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Tham K, Low S, Hong E, Olsen J, Lim X, van Steensel M. 870 Y27632 promotes proliferation via EGFR signaling in a newly isolated and characterized human primary sebocyte cell line. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.946] [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: 10/27/2022]
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Scarisbrick J, Quaglino P, Vermeer M, Prince M, Papadavid E, Hodak E, Whittaker S, Bagot M, Ortiz P, Stadler R, Knobler R, Evison F, Hong E, Willemze R, Kim Y. 176 The Prospective Cutaneous Lymphoma International Prognostic Index (PROCLIPI) Study identifies clinical prognostic markers and establishes the foundation for large-scale translational research in cutaneous lymphoma. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.252] [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: 10/27/2022]
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Hong E, Halman JR, Shah A, Cedrone E, Truong N, Afonin KA, Dobrovolskaia MA. Toll-Like Receptor-Mediated Recognition of Nucleic Acid Nanoparticles (NANPs) in Human Primary Blood Cells. Molecules 2019; 24:E1094. [PMID: 30897721 PMCID: PMC6470694 DOI: 10.3390/molecules24061094] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [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: 02/27/2019] [Revised: 03/12/2019] [Accepted: 03/18/2019] [Indexed: 12/11/2022] Open
Abstract
Infusion reactions (IRs) create a translational hurdle for many novel therapeutics, including those utilizing nanotechnology. Nucleic acid nanoparticles (NANPs) are a novel class of therapeutics prepared by rational design of relatively short oligonucleotides to self-assemble into various programmable geometric shapes. While cytokine storm, a common type of IR, has halted clinical development of several therapeutic oligonucleotides, NANP technologies hold tremendous potential to bring these reactions under control by tuning the particle's physicochemical properties to the desired type and magnitude of the immune response. Recently, we reported the very first comprehensive study of the structure⁻activity relationship between NANPs' shape, size, composition, and their immunorecognition in human cells, and identified the phagolysosomal pathway as the major route for the NANPs' uptake and subsequent immunostimulation. Here, we explore the molecular mechanism of NANPs' recognition by primary immune cells, and particularly the contributing role of the Toll-like receptors. Our current study expands the understanding of the immune recognition of engineered nucleic acid-based therapeutics and contributes to the improvement of the nanomedicine safety profile.
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Affiliation(s)
- Enping Hong
- Nanotechnology Characterization Lab, Frederick National Laboratory for Cancer Research Sponsored by The National Cancer Institute, Frederick, MD 21702, USA.
| | - Justin R Halman
- Nanoscale Science Program, Department of Chemistry, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA.
| | - Ankit Shah
- Nanotechnology Characterization Lab, Frederick National Laboratory for Cancer Research Sponsored by The National Cancer Institute, Frederick, MD 21702, USA.
| | - Edward Cedrone
- Nanotechnology Characterization Lab, Frederick National Laboratory for Cancer Research Sponsored by The National Cancer Institute, Frederick, MD 21702, USA.
| | - Nguyen Truong
- Nanoscale Science Program, Department of Chemistry, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA.
| | - Kirill A Afonin
- Nanoscale Science Program, Department of Chemistry, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA.
| | - Marina A Dobrovolskaia
- Nanotechnology Characterization Lab, Frederick National Laboratory for Cancer Research Sponsored by The National Cancer Institute, Frederick, MD 21702, USA.
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Ke W, Hong E, Saito RF, Rangel MC, Wang J, Viard M, Richardson M, Khisamutdinov EF, Panigaj M, Dokholyan NV, Chammas R, Dobrovolskaia MA, Afonin KA. RNA-DNA fibers and polygons with controlled immunorecognition activate RNAi, FRET and transcriptional regulation of NF-κB in human cells. Nucleic Acids Res 2019; 47:1350-1361. [PMID: 30517685 PMCID: PMC6379676 DOI: 10.1093/nar/gky1215] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 11/19/2018] [Accepted: 11/22/2018] [Indexed: 12/17/2022] Open
Abstract
Nucleic acid-based assemblies that interact with each other and further communicate with the cellular machinery in a controlled manner represent a new class of reconfigurable materials that can overcome limitations of traditional biochemical approaches and improve the potential therapeutic utility of nucleic acids. This notion enables the development of novel biocompatible 'smart' devices and biosensors with precisely controlled physicochemical and biological properties. We extend this novel concept by designing RNA-DNA fibers and polygons that are able to cooperate in different human cell lines and that have defined immunostimulatory properties confirmed by ex vivo experiments. The mutual intracellular interaction of constructs results in the release of a large number of different siRNAs while giving a fluorescent response and activating NF-κB decoy DNA oligonucleotides. This work expands the possibilities of nucleic acid technologies by (i) introducing very simple design principles and assembly protocols; (ii) potentially allowing for a simultaneous release of various siRNAs together with functional DNA sequences and (iii) providing controlled rates of reassociation, stabilities in human blood serum, and immunorecognition.
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Affiliation(s)
- Weina Ke
- Nanoscale Science Program, Department of Chemistry, University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | - Enping Hong
- Nanotechnology Characterization Lab., Cancer Research Technology Program, Frederick National Laboratory for Cancer Research sponsored by the National Cancer Institute, Frederick, MD 21702, USA
| | - Renata F Saito
- Centro de Investigação Translacional em Oncologia (LIM24), Departamento de Radiologia e Oncologia, Faculdade de Medicina da Universidade de São Paulo and Instituto do Câncer do Estado de São Paulo, São Paulo, SP, Brazil
| | - Maria Cristina Rangel
- Centro de Investigação Translacional em Oncologia (LIM24), Departamento de Radiologia e Oncologia, Faculdade de Medicina da Universidade de São Paulo and Instituto do Câncer do Estado de São Paulo, São Paulo, SP, Brazil
| | - Jian Wang
- Department of Pharmacology, Department of Biochemistry & Molecular Biology, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Mathias Viard
- Basic Science Program, Cancer and Inflammation Program, Leidos Biomedical Research Inc., Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA
| | - Melina Richardson
- Nanoscale Science Program, Department of Chemistry, University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | | | - Martin Panigaj
- Institute of Biology and Ecology, Faculty of Science, Pavol Jozef Safarik University in Kosice, Kosice, Slovak Republic
| | - Nikolay V Dokholyan
- Department of Pharmacology, Department of Biochemistry & Molecular Biology, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Roger Chammas
- Nanoscale Science Program, Department of Chemistry, University of North Carolina at Charlotte, Charlotte, NC 28223, USA
- Centro de Investigação Translacional em Oncologia (LIM24), Departamento de Radiologia e Oncologia, Faculdade de Medicina da Universidade de São Paulo and Instituto do Câncer do Estado de São Paulo, São Paulo, SP, Brazil
| | - Marina A Dobrovolskaia
- Nanotechnology Characterization Lab., Cancer Research Technology Program, Frederick National Laboratory for Cancer Research sponsored by the National Cancer Institute, Frederick, MD 21702, USA
| | - Kirill A Afonin
- Nanoscale Science Program, Department of Chemistry, University of North Carolina at Charlotte, Charlotte, NC 28223, USA
- The Center for Biomedical Engineering and Science, University of North Carolina at Charlotte, Charlotte, NC 28223, USA
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Pegram MD, Pivot X, Cortes J, Curigliano G, Yoon Y, Lim J, Song S, Hong E. Abstract P6-17-09: Event-free survival by ADCC status from a follow-up study comparing SB3 (trastuzumab biosimilar) with reference trastuzumab for HER2 positive breast cancer in neoadjuvant setting. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p6-17-09] [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] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: SB3 has been approved by the European Commission as a biosimilar of reference trastuzumab (TRZ). Equivalent breast pathologic complete response (bpCR) rate and comparable event-free survival (EFS) and overall survival between SB3 and TRZ have been reported.1-3 Upon monitoring quality attributes of TRZ for the development of SB3, a marked downward shift in antibody-dependent cell-mediated cytotoxicity activities (ADCC) was observed in TRZ lots with expiry dates from Aug 2018 to Dec 2019.4 Some of these lots were used in this study. The objective of this report is to evaluate event-free survival by ADCC status from an additional one-year follow-up study.
Methods: Patients with HER2 positive early or locally advanced breast cancer were randomly assigned to receive SB3 or TRZ in neoadjuvant setting concurrently with chemotherapy. Patients then underwent surgery followed by adjuvant SB3 or TRZ. After completion of therapy, patients from selected countries participated in a long-term follow-up study. In TRZ, patients exposed to at least one shifted ADCC lot and those not exposed to shifted ADCC lot during neoadjuvant period were considered as “Exposed” and “Unexposed,” respectively. EFS was defined as the time from the date of randomization to the date when the first event occurred. An event was defined as disease recurrence or progression (local, regional, distant or contralateral) or death due to any cause. EFS after additional one-year follow-up was analyzed by ADCC status in the long-term follow-up set (LFS).
Results: A total of 367 patients (SB3, N=186; TRZ, N=181) were included in the LFS. Within TRZ, 55 patients were Unexposed and 126 patients were Exposed. At a median follow-up duration of 30.1 months in SB3 and 30.2 months in TRZ from initiation of study treatment, 4.8% patients in SB3, 3.6% in Unexposed and 10.3% in Exposed experienced events. 4.3% patients in SB3, 1.8% in Unexposed and 9.5% in Exposed experienced recurrence after surgery (Table). Two-year EFS rate was 96.7% in SB3, 98.2% in Unexposed and 92.5% in Exposed.
Conclusion: A significantly higher proportion of patients experienced events in Exposed compared to Unexposed (HR 0.07, 95% CI 0.01-0.58, p-value=0.0137). No significant difference in EFS was found between SB3 and Unexposed. Although this study has a relatively short follow-up and has not been powered to evaluate the impact of ADCC on survival, these results suggest a possible correlation between ADCC and clinical efficacy. Further long-term results will follow.
Summary of Event-free Survival (LFS) TRZEFS Hazard ratio (95% CI), p-value SB3 N=186All N=181Unexposed N=55Exposed N=126SB3 vs TRZ AllSB3 vs TRZ UnexposedTRZ Unexposed vs TRZ ExposedPatients with event, n (%)9 (4.8%)15 (8.3%)2 (3.6%)13 (10.3%)0.49 (0.21, 1.14) p=0.09751.19 (0.23, 6.18) p=0.83760.07 (0.01, 0.58) p=0.0137Recurrence after surgery8 (4.3%)13 (7.2%)1 (1.8%)12 (9.5%) Progression before surgery1 (0.5%)1 (0.6%)1 (1.8%)0 (0.0%) Death0 (0.0%)1 (0.6%)0 (0.0%)1 (0.8%)
Reference:
1. Pivot X et al. J Clin Oncol. 2018; 36:968-74
2. Pivot X et al. Eur J Cancer. 2018; 93:19-27
3. Pivot X et al. J Clin Oncol. 2018; 36 (suppl; abstr e12631)
4. Kim S et al. MAbs. 2017; 9:704-14
Citation Format: Pegram MD, Pivot X, Cortes J, Curigliano G, Yoon Y, Lim J, Song S, Hong E. Event-free survival by ADCC status from a follow-up study comparing SB3 (trastuzumab biosimilar) with reference trastuzumab for HER2 positive breast cancer in neoadjuvant setting [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P6-17-09.
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Affiliation(s)
- MD Pegram
- Stanford Comprehensive Cancer Institute, Stanford, CA; Administrateur de l'Institut Régional du Cancer, Strasbourg, France; Ramon y Cajal University Hospital, Madrid, Spain; European Institute of Oncology, Milano, Italy; Samsung Bioepis Co., Ltd., Incheon, Korea
| | - X Pivot
- Stanford Comprehensive Cancer Institute, Stanford, CA; Administrateur de l'Institut Régional du Cancer, Strasbourg, France; Ramon y Cajal University Hospital, Madrid, Spain; European Institute of Oncology, Milano, Italy; Samsung Bioepis Co., Ltd., Incheon, Korea
| | - J Cortes
- Stanford Comprehensive Cancer Institute, Stanford, CA; Administrateur de l'Institut Régional du Cancer, Strasbourg, France; Ramon y Cajal University Hospital, Madrid, Spain; European Institute of Oncology, Milano, Italy; Samsung Bioepis Co., Ltd., Incheon, Korea
| | - G Curigliano
- Stanford Comprehensive Cancer Institute, Stanford, CA; Administrateur de l'Institut Régional du Cancer, Strasbourg, France; Ramon y Cajal University Hospital, Madrid, Spain; European Institute of Oncology, Milano, Italy; Samsung Bioepis Co., Ltd., Incheon, Korea
| | - Y Yoon
- Stanford Comprehensive Cancer Institute, Stanford, CA; Administrateur de l'Institut Régional du Cancer, Strasbourg, France; Ramon y Cajal University Hospital, Madrid, Spain; European Institute of Oncology, Milano, Italy; Samsung Bioepis Co., Ltd., Incheon, Korea
| | - J Lim
- Stanford Comprehensive Cancer Institute, Stanford, CA; Administrateur de l'Institut Régional du Cancer, Strasbourg, France; Ramon y Cajal University Hospital, Madrid, Spain; European Institute of Oncology, Milano, Italy; Samsung Bioepis Co., Ltd., Incheon, Korea
| | - S Song
- Stanford Comprehensive Cancer Institute, Stanford, CA; Administrateur de l'Institut Régional du Cancer, Strasbourg, France; Ramon y Cajal University Hospital, Madrid, Spain; European Institute of Oncology, Milano, Italy; Samsung Bioepis Co., Ltd., Incheon, Korea
| | - E Hong
- Stanford Comprehensive Cancer Institute, Stanford, CA; Administrateur de l'Institut Régional du Cancer, Strasbourg, France; Ramon y Cajal University Hospital, Madrid, Spain; European Institute of Oncology, Milano, Italy; Samsung Bioepis Co., Ltd., Incheon, Korea
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Hong E, Dobrovolskaia MA. Addressing barriers to effective cancer immunotherapy with nanotechnology: achievements, challenges, and roadmap to the next generation of nanoimmunotherapeutics. Adv Drug Deliv Rev 2019; 141:3-22. [PMID: 29339144 DOI: 10.1016/j.addr.2018.01.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 12/18/2017] [Accepted: 01/11/2018] [Indexed: 12/18/2022]
Abstract
Cancer is a complex systemic disorder that affects many organs and tissues and arises from the altered function of multiple cellular and molecular mechanisms. One of the systems malfunctioning in cancer is the immune system. Restoring and improving the ability of the immune system to effectively recognize and eradicate cancer is the main focus of immunotherapy, a topic which has garnered recent and significant interest. The initial excitement about immunotherapy, however, has been challenged by its limited efficacy in certain patient populations and the development of adverse effects such as therapeutic resistance and autoimmunity. At the same time, a number of advances in the field of nanotechnology have sought to address the challenges faced by modern immunotherapeutics and allow these therapeutic strategies to realize their full potential. This endeavour requires an understanding of not only the immunological barriers in cancer but also the mechanisms by which modern technologies and immunotherapeutics modulate the function of the immune system. Herein, we summarize the major barriers relevant to cancer immunotherapy and review current progress in addressing these obstacles using various approaches and clinically approved therapies. We then discuss the remaining challenges and how they can be addressed by nanotechnology. We lay out translational considerations relevant to the therapies described and propose a framework for the development of next-generation nanotechnology-enabled immunotherapies.
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Hodak E, Papadavid E, Quaglino P, Prince M, Vermeer M, Querfeld C, Stranzenbach R, Child F, Whittaker S, Muralidharan V, Bagot M, Ortiz P, Stadler R, Knobler R, Guenova E, Estrach T, Patsatsi A, Berti E, Alberti-Violetti S, Cowan R, Jonak C, Nikolaou V, Mitteldorf C, Matin R, Beylot-Barry M, Vakeva L, Sanches JA, Servitje O, Weatherhead S, Wobser M, Yoo J, Bayne M, Bates A, Dunnill G, Marschalko M, Buschots AM, Wehkamp U, Wachsmuth R, Arumainathan A, Cozzio A, Akilov O, Kempf W, Cerroni L, Evison F, Hong E, Willemze R, Kim Y, Scarisbrick J. Lymph node imaging in patch/plaque mycosis fungoides; enlarged LN are infrequent but lymphomatous nodal involvement may occur and upstage patients to advanced disease. Eur J Cancer 2018. [DOI: 10.1016/j.ejca.2018.07.274] [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: 11/28/2022]
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30
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Scarisbrick J, Quaglino P, Prince H, Papadavid E, Vermeer M, Hodak E, Whittaker S, Bagot M, Ortiz P, Stadler R, Knobler R, Evison F, Hong E, Willemze R, Kim Y. The PROCLIPI study; a prototype registry for rare disease with global collaboration for establishment of a prognostic index in mycosis fungoides and Sezary syndrome. Eur J Cancer 2018. [DOI: 10.1016/j.ejca.2018.07.156] [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: 11/28/2022]
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31
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Hong E, Halman JR, Shah AB, Khisamutdinov EF, Dobrovolskaia MA, Afonin KA. Structure and Composition Define Immunorecognition of Nucleic Acid Nanoparticles. Nano Lett 2018; 18:4309-4321. [PMID: 29894623 PMCID: PMC6540121 DOI: 10.1021/acs.nanolett.8b01283] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Nucleic acid nanoparticles (NANPs) have evolved as a new class of therapeutics with the potential to detect and treat diseases. Despite tremendous advancements in NANP development, their immunotoxicity, one of the major impediments in clinical translation of traditional therapeutic nucleic acids (TNAs), has never been fully characterized. Here, we describe the first systematically studied immunological recognition of 25 representative RNA and DNA NANPs selected to have different design principles and physicochemical properties. We discover that, unlike traditional TNAs, NANPs used without a delivery carrier are immunoquiescent. We show that interferons (IFNs) are the key cytokines triggered by NANPs after their internalization by phagocytic cells, which agrees with predictions based on the experiences with TNAs. However, in addition to type I IFNs, type III IFNs also serve as reliable biomarkers of NANPs, which is usually not characteristic of TNAs. We show that overall immunostimulation relies on NANP shapes, connectivities, and compositions. We demonstrate that, like with traditional TNAs, plasmacytoid dendritic cells serve as the primary interferon producers among all peripheral blood mononuclear cells treated with NANPs, and scavenger receptor-mediated uptake and endosomal Toll-like receptor signaling are essential for NANP immunorecognition. The TLR involvement, however, is different from that expected for traditional TNA recognition. Based on these results, we suggest that NANP technology may serve as a prototype of auxiliary molecular language for communication with the immune system and the modulation of immune responses.
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Affiliation(s)
- Enping Hong
- Nanotechnology Characterization Lab, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research sponsored by the National Cancer Institute, Frederick, Maryland 21702, United States
| | - Justin R. Halman
- Nanoscale Science Program, Department of Chemistry, The University of North Carolina at Charlotte, Charlotte, North Carolina 28223, United States
| | - Ankit B. Shah
- Nanotechnology Characterization Lab, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research sponsored by the National Cancer Institute, Frederick, Maryland 21702, United States
| | - Emil F. Khisamutdinov
- Department of Chemistry, Ball State University, Muncie, Indiana 47306, United States
| | - Marina A. Dobrovolskaia
- Nanotechnology Characterization Lab, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research sponsored by the National Cancer Institute, Frederick, Maryland 21702, United States
| | - Kirill A. Afonin
- Nanoscale Science Program, Department of Chemistry, The University of North Carolina at Charlotte, Charlotte, North Carolina 28223, United States
- The Center for Biomedical Engineering and Science, The University of North Carolina at Charlotte, Charlotte, North Carolina 28223, United States
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Scarisbrick J, Quaglino P, Vermeer M, Prince H, Papadavid E, Hodak E, Whittaker S, Bagot M, Ortiz P, Stadler R, Knobler R, Evison F, Hong E, Willemze R, Kim Y. 516 Global collaboration for establishment of a prognostic index in mycosis fungoides & Sezary Syndrome. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Girolomoni G, Feldman S, Emery P, Ghil J, Keum J, Cheong S, Hong E. Comparison of injection-site reactions between the etanercept biosimilar SB4 and the reference etanercept in patients with rheumatoid arthritis from a phase III study. Br J Dermatol 2018; 178:e215-e216. [DOI: 10.1111/bjd.16032] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- G. Girolomoni
- Section of Dermatology and Venereology; Department of Medicine; University of Verona; Piazzale A Stefani 1 37126 Verona Italy
| | - S.R. Feldman
- Department of Dermatology; Wake Forest University School of Medicine; Winston-Salem NC 27101 U.S.A
| | - P. Emery
- Leeds Institute of Rheumatic and Musculoskeletal Medicine; University of Leeds; Leeds U.K
| | - J. Ghil
- Samsung Bioepis Co., Ltd; Incheon Republic of Korea
| | - J.W. Keum
- Samsung Bioepis Co., Ltd; Incheon Republic of Korea
| | - S.Y. Cheong
- Samsung Bioepis Co., Ltd; Incheon Republic of Korea
| | - E. Hong
- Samsung Bioepis Co., Ltd; Incheon Republic of Korea
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Johnson MB, Halman JR, Satterwhite E, Zakharov AV, Bui MN, Benkato K, Goldsworthy V, Kim T, Hong E, Dobrovolskaia MA, Khisamutdinov EF, Marriott I, Afonin KA. Programmable Nucleic Acid Based Polygons with Controlled Neuroimmunomodulatory Properties for Predictive QSAR Modeling. Small 2017; 13:10.1002/smll.201701255. [PMID: 28922553 PMCID: PMC6258062 DOI: 10.1002/smll.201701255] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 07/14/2017] [Indexed: 05/13/2023]
Abstract
In the past few years, the study of therapeutic RNA nanotechnology has expanded tremendously to encompass a large group of interdisciplinary sciences. It is now evident that rationally designed programmable RNA nanostructures offer unique advantages in addressing contemporary therapeutic challenges such as distinguishing target cell types and ameliorating disease. However, to maximize the therapeutic benefit of these nanostructures, it is essential to understand the immunostimulatory aptitude of such tools and identify potential complications. This paper presents a set of 16 nanoparticle platforms that are highly configurable. These novel nucleic acid based polygonal platforms are programmed for controllable self-assembly from RNA and/or DNA strands via canonical Watson-Crick interactions. It is demonstrated that the immunostimulatory properties of these particular designs can be tuned to elicit the desired immune response or lack thereof. To advance the current understanding of the nanoparticle properties that contribute to the observed immunomodulatory activity and establish corresponding designing principles, quantitative structure-activity relationship modeling is conducted. The results demonstrate that molecular weight, together with melting temperature and half-life, strongly predicts the observed immunomodulatory activity. This framework provides the fundamental guidelines necessary for the development of a new library of nanoparticles with predictable immunomodulatory activity.
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Affiliation(s)
- M. Brittany Johnson
- Department of Biological Sciences, University of North Carolina at Charlotte, 9201 University City Boulevard, Charlotte, NC 28223, USA
| | - Justin R. Halman
- Nanoscale Science Program, Department of Chemistry, University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | - Emily Satterwhite
- Nanoscale Science Program, Department of Chemistry, University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | - Alexey V. Zakharov
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD 20850, USA
| | - My N. Bui
- Department of Chemistry, Ball State University, Muncie, IN 47306, USA
| | - Kheiria Benkato
- Department of Chemistry, Ball State University, Muncie, IN 47306, USA
| | | | - Taejin Kim
- Department of Chemistry, New York University, New York, NY 10003, USA
| | - Enping Hong
- Nanotechnology Characterization Lab, Cancer Research Technology Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA
| | - Marina A. Dobrovolskaia
- Nanotechnology Characterization Lab, Cancer Research Technology Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA
| | | | - Ian Marriott
- Department of Biological Sciences, University of North Carolina at Charlotte, 9201 University City Boulevard, Charlotte, NC 28223, USA
| | - Kirill A. Afonin
- Nanoscale Science Program, Department of Chemistry, University of North Carolina at Charlotte, Charlotte, NC 28223, USA
- The Center for Biomedical Engineering and Science, University of North Carolina at Charlotte, Charlotte, NC 28223, USA
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35
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Linstead E, Dixon DR, Hong E, Burns CO, French R, Novack MN, Granpeesheh D. An evaluation of the effects of intensity and duration on outcomes across treatment domains for children with autism spectrum disorder. Transl Psychiatry 2017; 7:e1234. [PMID: 28925999 PMCID: PMC5639250 DOI: 10.1038/tp.2017.207] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 06/14/2017] [Accepted: 07/13/2017] [Indexed: 11/12/2022] Open
Abstract
Applied behavior analysis (ABA) is considered an effective treatment for individuals with autism spectrum disorder (ASD), and many researchers have further investigated factors associated with treatment outcomes. However, few studies have focused on whether treatment intensity and duration have differential influences on separate skills. The aim of the current study was to investigate how treatment intensity and duration impact learning across different treatment domains, including academic, adaptive, cognitive, executive function, language, motor, play, and social. Separate multiple linear regression analyses were used to evaluate these relationships. Participants included 1468 children with ASD, ages 18 months to 12 years old, M=7.57 years, s.d.=2.37, who were receiving individualized ABA services. The results indicated that treatment intensity and duration were both significant predictors of mastered learning objectives across all eight treatment domains. The academic and language domains showed the strongest response, with effect sizes of 1.68 and 1.85 for treatment intensity and 4.70 and 9.02 for treatment duration, respectively. These findings are consistent with previous research that total dosage of treatment positively influences outcomes. The current study also expands on extant literature by providing a better understanding of the differential impact that these treatment variables have across various treatment domains.
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Affiliation(s)
- E Linstead
- Machine Learning and Assistive Technology Laboratory, Schmid College of Science and Technology, Chapman University, Orange, CA, USA
| | - D R Dixon
- Department of Research and Development, Center for Autism and Related Disorders, Woodland Hills, CA, USA
| | - E Hong
- Department of Research and Development, Center for Autism and Related Disorders, Woodland Hills, CA, USA
| | - C O Burns
- Department of Research and Development, Center for Autism and Related Disorders, Woodland Hills, CA, USA
- Department of Psychology, Louisiana State University, Baton Rouge, LA, USA
| | - R French
- Machine Learning and Assistive Technology Laboratory, Schmid College of Science and Technology, Chapman University, Orange, CA, USA
| | - M N Novack
- Department of Research and Development, Center for Autism and Related Disorders, Woodland Hills, CA, USA
| | - D Granpeesheh
- Department of Research and Development, Center for Autism and Related Disorders, Woodland Hills, CA, USA
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Calderón-Zamora L, Ruiz-Hernandez A, Romero-Nava R, León-Sicairos N, Canizalez-Román A, Hong E, Huang F, Villafaña S. Possible involvement of orphan receptors GPR88 and GPR124 in the development of hypertension in spontaneously hypertensive rat. Clin Exp Hypertens 2017; 39:513-519. [PMID: 28678544 DOI: 10.1080/10641963.2016.1273949] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 12/22/2022]
Abstract
Hypertension (HBP) is a chronic disease characterized by increased blood pressure, which despite several treatments maintains a high morbi-mortality, which suggests that there are other mechanisms involved in this pathology, within which the orphan receptors could be candidates for the treatment of the HBP; these receptors are called orphan receptors because their ligand is unknown. These receptors have been suggested to participate in some pathologies because they are associated with various systems such as GPR88, which has been linked to the dopaminergic system, and GPR124 with angiogenesis, suggesting that these receptors could take part in HBP. Hence, the aim of this work was to study the expression of orphan receptors GPR88 and GPR124 in various tissues of normotensive and hypertensive rats. We used Wistar Kyoto (WKY) and spontaneously hypertensive rat (SHR) of 6-8 and 10-12 weeks of age and we determined systolic blood pressure (SBP), heart rate, as well as mRNA of GPR88 and GPR124 receptors by reverse transcription polymerase chain reaction (RT-PCR) in the aorta, heart, kidney, and brain. Our results showed that GPR88 and GPR124 were expressed in all analyzed tissues, but their expression is dependent on the age and development of HBP because their expression tends to be modified as HBP is established. Therefore, we conclude that GPR88 and GPR124 receptors may be involved in the development or maintenance of high blood pressure.
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Affiliation(s)
- L Calderón-Zamora
- a Laboratorio de Señalización Intracelular, Sección de Posgrado , Escuela Superior de Medicina del Instituto Politécnico Nacional Ciudad de México , México
| | - A Ruiz-Hernandez
- a Laboratorio de Señalización Intracelular, Sección de Posgrado , Escuela Superior de Medicina del Instituto Politécnico Nacional Ciudad de México , México
| | - R Romero-Nava
- a Laboratorio de Señalización Intracelular, Sección de Posgrado , Escuela Superior de Medicina del Instituto Politécnico Nacional Ciudad de México , México
| | - N León-Sicairos
- b CIASaP, Facultad de Medicina , Universidad Autónoma de Sinaloa Culiacán , Sinaloa , México
| | - A Canizalez-Román
- b CIASaP, Facultad de Medicina , Universidad Autónoma de Sinaloa Culiacán , Sinaloa , México
| | - E Hong
- c Departamento de Farmacobiología , Centro de Investigación y de Estudios Avanzados , Ciudad de México , México
| | - F Huang
- d Departamento de Farmacología y Toxicología , Hospital Infantil de México Federico Gómez (HIMFG) , Ciudad de México , México
| | - S Villafaña
- a Laboratorio de Señalización Intracelular, Sección de Posgrado , Escuela Superior de Medicina del Instituto Politécnico Nacional Ciudad de México , México
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Parent du Chatelet I, Deghmane A, Antona D, Hong E, Fonteneau L, Taha M, Lévy-Bruhl D. Characteristics and changes in invasive meningococcal disease epidemiology in France, 2006–2015. J Infect 2017; 74:564-574. [DOI: 10.1016/j.jinf.2017.02.011] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 02/03/2017] [Accepted: 02/24/2017] [Indexed: 01/09/2023]
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38
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Meng Q, Cherry M, Du X, Lu H, Hong E, Yang Y, Choa FS. Magnetic focusing by magnetic shielding for Non-Invasive Brain Stimulation. Brain Stimul 2017. [DOI: 10.1016/j.brs.2017.01.148] [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: 10/20/2022] Open
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39
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Setiady Y, Lanieri L, Ab O, Maloney E, Hong E, Qiu Q, Zhou Y, Zhao J, Themeles M, Zhang X, Pinkas J, Ruiz Soto R, Ponte J. Preclinical evaluation of M-DGN549, a folate receptor alpha-targeting antibody–drug conjugate (ADC) with a DNA-alkylating payload. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)33030-1] [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: 10/20/2022]
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40
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Allison P, Bard R, Beatty J, Besson D, Bora C, Chen CC, Chen CH, Chen P, Christenson A, Connolly A, Davies J, Duvernois M, Fox B, Gaior R, Gorham P, Hanson K, Haugen J, Hill B, Hoffman K, Hong E, Hsu SY, Hu L, Huang JJ, Huang MH, Ishihara A, Karle A, Kelley J, Kennedy D, Kravchenko I, Kuwabara T, Landsman H, Laundrie A, Li CJ, Liu T, Lu MY, Macchiarulo L, Mase K, Meures T, Meyhandan R, Miki C, Morse R, Nam J, Nichol R, Nir G, Novikov A, O’Murchadha A, Pfendner C, Ratzlaff K, Relich M, Richman M, Ritter L, Rotter B, Sandstrom P, Schellin P, Shultz A, Seckel D, Shiao YS, Stockham J, Stockham M, Touart J, Varner G, Wang MZ, Wang SH, Yang Y, Yoshida S, Young R. Performance of two Askaryan Radio Array stations and first results in the search for ultrahigh energy neutrinos. Int J Clin Exp Med 2016. [DOI: 10.1103/physrevd.93.082003] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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41
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Hong E, Usiskin IM, Bergamaschi C, Hanlon DJ, Edelson RL, Justesen S, Pavlakis GN, Flavell RA, Fahmy TM. Configuration-dependent Presentation of Multivalent IL-15:IL-15Rα Enhances the Antigen-specific T Cell Response and Anti-tumor Immunity. J Biol Chem 2015; 291:8931-50. [PMID: 26719339 DOI: 10.1074/jbc.m115.695304] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [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: 10/20/2015] [Indexed: 01/08/2023] Open
Abstract
Here we report a "configuration-dependent" mechanism of action for IL-15:IL-15Rα (heterodimeric IL-15 or hetIL-15) where the manner by which IL-15:IL-15Rα molecules are presented to target cells significantly affects its function as a vaccine adjuvant. Although the cellular mechanism of IL-15 trans-presentation via IL-15Rα and its importance for IL-15 function have been described, the full effect of the IL-15:IL-15Rα configuration on responding cells is not yet known. We found that trans-presenting IL-15:IL-15Rα in a multivalent fashion on the surface of antigen-encapsulating nanoparticles enhanced the ability of nanoparticle-treated dendritic cells (DCs) to stimulate antigen-specific CD8(+) T cell responses. Localization of multivalent IL-15:IL-15Rα and encapsulated antigen to the same DC led to maximal T cell responses. Strikingly, DCs incubated with IL-15:IL-15Rα-coated nanoparticles displayed higher levels of functional IL-15 on the cell surface, implicating a mechanism for nanoparticle-mediated transfer of IL-15 to the DC surface. Using artificial antigen-presenting cells to highlight the effect of IL-15 configuration on DCs, we showed that artificial antigen-presenting cells presenting IL-15:IL-15Rα increased the sensitivity and magnitude of the T cell response, whereas IL-2 enhanced the T cell response only when delivered in a paracrine fashion. Therefore, the mode of cytokine presentation (configuration) is important for optimal immune responses. We tested the effect of configuration dependence in an aggressive model of murine melanoma and demonstrated significantly delayed tumor progression induced by IL-15:IL-15Rα-coated nanoparticles in comparison with monovalent IL-15:IL-15Rα. The novel mechanism of IL-15 transfer to the surface of antigen-processing DCs may explain the enhanced potency of IL-15:IL-15Rα-coated nanoparticles for antigen delivery.
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Affiliation(s)
- Enping Hong
- From the Department of Biomedical Engineering, Yale University, New Haven, Connecticut 06511
| | - Ilana M Usiskin
- From the Department of Biomedical Engineering, Yale University, New Haven, Connecticut 06511
| | - Cristina Bergamaschi
- the Vaccine Branch, National Cancer Institute, National Institutes of Health, Frederick, Maryland 21702, and
| | - Douglas J Hanlon
- Dermatology, Yale University School of Medicine, New Haven, Connecticut 06510
| | - Richard L Edelson
- Dermatology, Yale University School of Medicine, New Haven, Connecticut 06510
| | - Sune Justesen
- the Department of Science, University of Copenhagen, Copenhagen 1017, Denmark
| | - George N Pavlakis
- the Vaccine Branch, National Cancer Institute, National Institutes of Health, Frederick, Maryland 21702, and
| | | | - Tarek M Fahmy
- From the Department of Biomedical Engineering, Yale University, New Haven, Connecticut 06511, the Departments of Immunobiology and
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Romero-Nava R, Rodriguez JE, Reséndiz-Albor AA, Sánchez-Muñoz F, Ruiz-Hernandéz A, Huang F, Hong E, Villafaña S. Changes in protein and gene expression of angiotensin II receptors (AT1 and AT2) in aorta of diabetic and hypertensive rats. Clin Exp Hypertens 2015; 38:56-62. [PMID: 26268856 DOI: 10.3109/10641963.2015.1060984] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [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: 01/11/2023]
Abstract
Diabetes and hypertension have been associated with cardiovascular diseases and stroke. Some reports have related the coexistence of hypertension and diabetes with increase in the risk of developing vascular complications. Recently some studies have shown results suggesting that in the early stages of diabetes and hypertension exist a reduced functional response to vasopressor agents like angiotensin II (Ang II), which plays an important role in blood pressure regulation mechanism through the activation of its AT1 and AT2 receptors. For that reason, the aim of this work was to study the gene and protein expression of AT1 and AT2 receptors in aorta of diabetic SHR and WKY rats. Diabetes was induced by the administration of streptozotocin (60 mg/kg i.p.). After 4 weeks of the onset of diabetes, the protein expression was obtained by western blot and the mRNA expression by RT-PCR. Our results showed that the hypertensive rats have a higher mRNA and protein expression of AT1 receptors than normotensive rats while the AT2 expression remained unchanged. On the other hand, the combination of diabetes and hypertension increased the mRNA and protein expression of AT1 and AT2 receptors significantly. In conclusion, our results suggest that diabetes with hypertension modifies the mRNA and protein expression of AT1 and AT2 receptors. However, the overexpression of AT2 could be associated with the reduction in the response to Ang II in the early stage of diabetes.
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Affiliation(s)
- R Romero-Nava
- a Laboratorio de Señalización Intracelular , Sección de Posgrado, Escuela Superior de Medicina del Instituto Politécnico Nacional, México D.F. , México
| | - J E Rodriguez
- a Laboratorio de Señalización Intracelular , Sección de Posgrado, Escuela Superior de Medicina del Instituto Politécnico Nacional, México D.F. , México
| | - A A Reséndiz-Albor
- a Laboratorio de Señalización Intracelular , Sección de Posgrado, Escuela Superior de Medicina del Instituto Politécnico Nacional, México D.F. , México
| | - F Sánchez-Muñoz
- b Departamento de Inmunología , Instituto Nacional de Cardiología Ignacio Chávez, México D.F. , México
| | - A Ruiz-Hernandéz
- a Laboratorio de Señalización Intracelular , Sección de Posgrado, Escuela Superior de Medicina del Instituto Politécnico Nacional, México D.F. , México
| | - F Huang
- c Departamento de Farmacología y Toxicología , Hospital Infantil de México Federico Gómez (HIMFG), México D.F. , México , and
| | - E Hong
- d Departamento de Neurofarmacobiología , Centro de Investigación y de Estudios Avanzados, México D.F. , México
| | - S Villafaña
- a Laboratorio de Señalización Intracelular , Sección de Posgrado, Escuela Superior de Medicina del Instituto Politécnico Nacional, México D.F. , México
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43
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López E, Guevara G, Ramírez I, Hong E, Castillo M. Modifications In Heart Resistance Vessels To Angiotensin Ii In Isolated Perfused Heart of Hypertensive Rats Treatment Whit Hyperbaric Oxygen. Clin Ther 2015. [DOI: 10.1016/j.clinthera.2015.05.092] [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: 11/30/2022]
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44
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Wyplosz B, Derradji O, Hong E, François H, Durrbach A, Duclos-Vallée JC, Samuel D, Escaut L, Launay O, Vittecoq D, Taha M. Low immunogenicity of quadrivalent meningococcal vaccines in solid organ transplant recipients. Transpl Infect Dis 2015; 17:322-7. [DOI: 10.1111/tid.12359] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Revised: 05/27/2014] [Accepted: 01/18/2015] [Indexed: 11/29/2022]
Affiliation(s)
- B. Wyplosz
- Assistance Publique-Hôpitaux de Paris; CHU Bicêtre; Centre de Vaccinations Internationales; Service de Maladies Infectieuses et Tropicales; Le Kremlin-Bicêtre France
| | - O. Derradji
- Assistance Publique-Hôpitaux de Paris; CHU Bicêtre; Centre de Vaccinations Internationales; Service de Maladies Infectieuses et Tropicales; Le Kremlin-Bicêtre France
| | - E. Hong
- Institut Pasteur; Invasive Bacterial Infections Unit; Paris France
| | - H. François
- Assistance Publique-Hôpitaux de Paris; CHU Bicêtre; Néphrologie; Le Kremlin-Bicêtre France
- Faculté de Médecine; Université Paris Sud; Paris France
| | - A. Durrbach
- Assistance Publique-Hôpitaux de Paris; CHU Bicêtre; Néphrologie; Le Kremlin-Bicêtre France
- Faculté de Médecine; Université Paris Sud; Paris France
| | - J.-C. Duclos-Vallée
- Faculté de Médecine; Université Paris Sud; Paris France
- Assistance Publique-Hôpitaux de Paris; Hôpital Universitaire Paul Brousse; Centre Hépatobiliaire; Villejuif France
| | - D. Samuel
- Faculté de Médecine; Université Paris Sud; Paris France
- Assistance Publique-Hôpitaux de Paris; Hôpital Universitaire Paul Brousse; Centre Hépatobiliaire; Villejuif France
| | - L. Escaut
- Assistance Publique-Hôpitaux de Paris; CHU Bicêtre; Centre de Vaccinations Internationales; Service de Maladies Infectieuses et Tropicales; Le Kremlin-Bicêtre France
| | - O. Launay
- INSERM, CIC BT505, and AP-HP; Paris Descartes University; Cochin Hospital; Paris France
| | - D. Vittecoq
- Assistance Publique-Hôpitaux de Paris; CHU Bicêtre; Centre de Vaccinations Internationales; Service de Maladies Infectieuses et Tropicales; Le Kremlin-Bicêtre France
- Assistance Publique-Hôpitaux de Paris; CHU Bicêtre; Néphrologie; Le Kremlin-Bicêtre France
| | - M.K. Taha
- Institut Pasteur; Invasive Bacterial Infections Unit; Paris France
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45
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Saluja SS, Hanlon DJ, Sharp FA, Hong E, Khalil D, Robinson E, Tigelaar R, Fahmy TM, Edelson RL. Targeting human dendritic cells via DEC-205 using PLGA nanoparticles leads to enhanced cross-presentation of a melanoma-associated antigen. Int J Nanomedicine 2014; 9:5231-46. [PMID: 25419128 PMCID: PMC4235494 DOI: 10.2147/ijn.s66639] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [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] [Indexed: 01/11/2023] Open
Abstract
Targeting antigen to dendritic cells (DCs) is a powerful and novel strategy for vaccination. Priming or loading DCs with antigen controls whether subsequent immunity will develop and hence whether effective vaccination can be achieved. The goal of our present work was to increase the potency of DC-based antitumor vaccines by overcoming inherent limitations associated with antigen stability and cross-presentation. Nanoparticles prepared from the biodegradable polymer poly(lactic-co-glycolic acid) have been extensively used in clinical settings for drug delivery and are currently the subject of intensive investigation as antigen delivery vehicles for vaccine applications. Here we describe a nanoparticulate delivery system with the ability to simultaneously carry a high density of protein-based antigen while displaying a DC targeting ligand on its surface. Utilizing a targeting motif specific for the DC-associated surface ligand DEC-205, we show that targeted nanoparticles encapsulating a MART-127–35 peptide are both internalized and cross-presented with significantly higher efficiency than isotype control-coated nanoparticles in human cells. In addition, the DEC-205-labeled nanoparticles rapidly escape from the DC endosomal compartment and do not colocalize with markers of early (EEA-1) or late endosome/lysosome (LAMP-1). This indicates that encapsulated antigens delivered by nanoparticles may have direct access to the class I cytoplasmic major histocompatibility complex loading machinery, overcoming the need for “classical” cross-presentation and facilitating heightened DC stimulation of anti-tumor CD8+ T-cells. These results indicate that this delivery system provides a flexible and versatile methodology to deliver melanoma-associated antigen to DCs, with both high efficiency and heightened potency.
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Affiliation(s)
- Sandeep S Saluja
- Department of Dermatology, Yale University School of Medicine, New Haven, CT, USA
| | - Douglas J Hanlon
- Department of Dermatology, Yale University School of Medicine, New Haven, CT, USA
| | - Fiona A Sharp
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - Enping Hong
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - David Khalil
- Department of Dermatology, Yale University School of Medicine, New Haven, CT, USA
| | - Eve Robinson
- Department of Dermatology, Yale University School of Medicine, New Haven, CT, USA
| | - Robert Tigelaar
- Department of Dermatology, Yale University School of Medicine, New Haven, CT, USA
| | - Tarek M Fahmy
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA ; Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA
| | - Richard L Edelson
- Department of Dermatology, Yale University School of Medicine, New Haven, CT, USA
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Fadel TR, Sharp FA, Vudattu N, Ragheb R, Garyu J, Kim D, Hong E, Li N, Haller GL, Pfefferle LD, Justesen S, Herold KC, Fahmy TM. A carbon nanotube-polymer composite for T-cell therapy. Nat Nanotechnol 2014; 9:639-47. [PMID: 25086604 DOI: 10.1038/nnano.2014.154] [Citation(s) in RCA: 150] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2012] [Accepted: 06/30/2014] [Indexed: 05/17/2023]
Abstract
Clinical translation of cell therapies requires strategies that can manufacture cells efficiently and economically. One promising way to reproducibly expand T cells for cancer therapy is by attaching the stimuli for T cells onto artificial substrates with high surface area. Here, we show that a carbon nanotube-polymer composite can act as an artificial antigen-presenting cell to efficiently expand the number of T cells isolated from mice. We attach antigens onto bundled carbon nanotubes and combined this complex with polymer nanoparticles containing magnetite and the T-cell growth factor interleukin-2 (IL-2). The number of T cells obtained was comparable to clinical standards using a thousand-fold less soluble IL-2. T cells obtained from this expansion were able to delay tumour growth in a murine model for melanoma. Our results show that this composite is a useful platform for generating large numbers of cytotoxic T cells for cancer immunotherapy.
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Affiliation(s)
- Tarek R Fadel
- Department of Chemical Engineering, Yale University, PO Box 208284, New Haven, Connecticut 06511, USA
| | - Fiona A Sharp
- Department of Biomedical Engineering, Yale University, PO Box 208284, New Haven, Connecticut 06511, USA
| | - Nalini Vudattu
- 1] Department of Immunobiology and Internal Medicine, Yale University, PO Box 208284, New Haven, Connecticut 06520, USA [2]
| | - Ragy Ragheb
- Department of Biomedical Engineering, Yale University, PO Box 208284, New Haven, Connecticut 06511, USA
| | - Justin Garyu
- 1] Department of Immunobiology and Internal Medicine, Yale University, PO Box 208284, New Haven, Connecticut 06520, USA [2]
| | - Dongin Kim
- Department of Biomedical Engineering, Yale University, PO Box 208284, New Haven, Connecticut 06511, USA
| | - Enping Hong
- Department of Biomedical Engineering, Yale University, PO Box 208284, New Haven, Connecticut 06511, USA
| | - Nan Li
- Department of Chemical Engineering, Yale University, PO Box 208284, New Haven, Connecticut 06511, USA
| | - Gary L Haller
- Department of Chemical Engineering, Yale University, PO Box 208284, New Haven, Connecticut 06511, USA
| | - Lisa D Pfefferle
- Department of Chemical Engineering, Yale University, PO Box 208284, New Haven, Connecticut 06511, USA
| | - Sune Justesen
- Department of Immunobiology and Microbiology, Blegdamsvej 3b DK2200, Copenhagen N Denmark
| | | | - Tarek M Fahmy
- 1] Department of Chemical Engineering, Yale University, PO Box 208284, New Haven, Connecticut 06511, USA [2] Department of Biomedical Engineering, Yale University, PO Box 208284, New Haven, Connecticut 06511, USA [3] Department of Immunobiology and Internal Medicine, Yale University, PO Box 208284, New Haven, Connecticut 06520, USA
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Moll NM, Hong E, Fauveau M, Naruse M, Kerninon C, Tepavcevic V, Klopstein A, Seilhean D, Chew LJ, Gallo V, Nait Oumesmar B. SOX17 is expressed in regenerating oligodendrocytes in experimental models of demyelination and in multiple sclerosis. Glia 2013; 61:1659-72. [PMID: 23918253 DOI: 10.1002/glia.22547] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [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: 02/12/2013] [Revised: 05/27/2013] [Accepted: 05/28/2013] [Indexed: 12/17/2022]
Abstract
We have previously demonstrated that Sox17 expression is prominent at developmental stages corresponding to oligodendrocyte progenitor cell (OPC) cycle exit and onset of differentiation, and that Sox17 promotes initiation of OPC differentiation. In this study, we examined Sox17 expression and regulation under pathological conditions, particularly in two animal models of demyelination/remyelination and in post-mortem multiple sclerosis (MS) brain lesions. We found that the number of Sox17 expressing cells was significantly increased in lysolecithin (LPC)-induced lesions of the mouse spinal cord between 7 and 30 days post-injection, as compared with controls. Sox17 immunoreactivity was predominantly detected in Olig2(+) and CC1(+) oligodendrocytes and rarely in NG2(+) OPCs. The highest density of Sox17(+) oligodendrocytes was observed at 2 weeks after LPC injection, coinciding with OPC differentiation. Consistent with these findings, in cuprizone-treated mice, Sox17 expression was highest in newly generated and in maturing CC1(+) oligodendrocytes, but low in NG2(+) OPCs during the demyelination and remyelination phases. In MS tissue, Sox17 was primarily detected in actively demyelinating lesions and periplaque white matter. Sox17 immunoreactivity was co-localized with NOGO-A+ post-mitotic oligodendrocytes both in active MS lesions and periplaque white matter. Taken together, our data: (i) demonstrate that Sox17 expression is highest in newly generated oligodendrocytes under pathological conditions and could be used as a marker of oligodendrocyte regeneration, and (ii) are suggestive of Sox17 playing a critical role in oligodendrocyte differentiation and lesion repair.
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Affiliation(s)
- N M Moll
- Institut National de la Santé et de la Recherche Médicale U.975, Centre de Recherche de l'Institut du Cerveau et de la Moelle Épinière, Paris, France
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Moreno JA, Hong E. A single oral dose of fructose induces some features of metabolic syndrome in rats: role of oxidative stress. Nutr Metab Cardiovasc Dis 2013; 23:536-542. [PMID: 22386006 DOI: 10.1016/j.numecd.2011.10.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2011] [Revised: 10/04/2011] [Accepted: 10/25/2011] [Indexed: 10/28/2022]
Abstract
BACKGROUND AND AIMS To determine if a single oral dose of fructose to rats reproduces some features of metabolic syndrome observed after chronic administration and if so, to investigate its mechanisms. METHODS AND RESULTS Systolic blood pressure was measured in rats before and after oral administration of fructose, and in animals pretreated with lipoic acid, methyldopa, losartan or streptozotocin. In other rats, glucose, insulin, uric acid, and insulin sensitivity index, were determined before and after fructose or lipoic acid plus fructose. Glutathione was measured in liver before and after fructose administration. In aortic rings from other rats, incubation with mannitol, fructose, or fructose plus lipoic acid was evaluated on the relaxation by acetylcholine. Fructose produced a moderate increase in blood pressure, which was prevented by lipoic acid or streptozotocin. Methyldopa and losartan decreased the pressor response minimally. Fructose increased oxidized glutathione, plasma glucose, insulin and uric acid, and diminished the insulin sensitivity index, and the reduced glutathione. Lipoic acid prevented hyperglycemia and hyperuricemia, and improved the insulin sensitivity index. Finally, endothelial dysfunction was prevented by lipoic acid. CONCLUSION A single dose of fructose reproduces some of the features of metabolic syndrome, most changes were caused by oxidative stress and insulin resistance.
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Affiliation(s)
- J A Moreno
- Faculty of Medicine, UNAM, Coyoacán DF 04510, Mexico.
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Huang F, del-Río-Navarro BE, de Castro GTM, Alcántara ST, Sienra Monge JJL, Ontiveros JAP, Olivos EN, Barron MF, Lopéz AR, Villafaña S, Hong E. Weight loss induced by 6-month lifestyle intervention improves early endothelial activation and fibrinolysis in obese adolescents. Child Care Health Dev 2011; 37:377-84. [PMID: 21198775 DOI: 10.1111/j.1365-2214.2010.01173.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [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: 11/30/2022]
Abstract
BACKGROUND Adolescent obesity is associated with an increased risk of adult obesity and subsequent cardiovascular diseases. The present study aimed to assess the effect of weight loss after 6-month lifestyle intervention in obese adolescents on biomarkers of endothelial activation and fibrinolytic system. METHODS Eighty-five obese adolescents aged 10 to 16 years were assigned to a 6-month lifestyle intervention and 61 completed the programme. We examined the effect of the intervention on adhesion molecules (selectin E, soluble intercellular adhesion molecule 1 and soluble vascular adhesion molecule 1) and fibrinolytic parameters [plasminogen activator inhibitor-1 (PAI-1) and fibrinogen]. Thirty-six lean adolescents were studied only at baseline as a comparison group. RESULTS Compared with lean participants, obese adolescents at baseline demonstrated significantly higher levels of triglycerides, glucose, insulin, homeostasis model assessment, soluble intercellular adhesion molecule 1, PAI-1 and fibrinogen. After 6-month lifestyle intervention, those obese adolescents with decreased standard deviation score-body mass index (SDS-BMI) displayed significant decreases in insulin (19.2 ± 11.2 vs. 26.8 ± 13.2 mU/L, P≤ 0.01), homeostasis model assessment (4.24 ± 3.19 vs. 6.58 ± 4.08, P≤ 0.01), selectin E (100.2 ± 60.9 vs. 116.0 ± 69.0 ng/mL, P≤ 0.01) and PAI-1 (39.6 ± 38.0 vs. 51.8 ± 25.6 ng/mL, P≤ 0.05) with respect to the baseline levels. No changes in these parameters were observed in the obese adolescents with stable or increased SDS-BMI. The changes of triglycerides after intervention in subgroup with decreased SDS-BMI were significantly greater than those in subgroup with stable SDS-BMI. CONCLUSIONS The present study demonstrated increased endothelial activation and impairment of the fibrinolytic system in early life, which is in part reversible by a 6-month lifestyle intervention.
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Affiliation(s)
- F Huang
- Department of Pharmacology and Toxicology, Hospital Infántil de México Federico Gómez, Mexico City, Mexico
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