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Lima AJF, Hajdu KL, Abdo L, Batista-Silva LR, de Oliveira Andrade C, Correia EM, Aragão EAA, Bonamino MH, Lourenzoni MR. In silico and in vivo analysis reveal impact of c-Myc tag in FMC63 scFv-CD19 protein interface and CAR-T cell efficacy. Comput Struct Biotechnol J 2024; 23:2375-2387. [PMID: 38873646 PMCID: PMC11170440 DOI: 10.1016/j.csbj.2024.05.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/06/2024] [Accepted: 05/17/2024] [Indexed: 06/15/2024] Open
Abstract
Anti-CD19 CAR-T cell therapy represents a breakthrough in the treatment of B-cell malignancies, and it is expected that this therapy modality will soon cover a range of solid tumors as well. Therefore, a universal cheap and sensitive method to detect CAR expression is of foremost importance. One possibility is the use of epitope tags such as c-Myc, HA or FLAG tags attached to the CAR extracellular domain, however, it is important to determine whether these tags can influence binding of the CAR with its target molecule. Here, we conducted in-silico structural modelling of an FMC63-based anti-CD19 single-chain variable fragment (scFv) with and without a c-Myc peptide tag added to the N-terminus portion and performed molecular dynamics simulation of the scFv with the CD19 target. We show that the c-Myc tag presence in the N-terminus portion does not affect the scFv's structural equilibrium and grants more stability to the scFv. However, intermolecular interaction potential (IIP) analysis reveals that the tag can approximate the complementarity-determining regions (CDRs) present in the scFv and cause steric impediment, potentially disturbing interaction with the CD19 protein. We then tested this possibility with CAR-T cells generated from human donors in a Nalm-6 leukemia model, showing that CAR-T cells with the c-Myc tag have overall worse antitumor activity, which was also observed when the tag was added to the C-terminus position. Ultimately, our results suggest that tag addition is an important aspect of CAR design and can influence CAR-T cell function, therefore its use should be carefully considered.
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Affiliation(s)
- Ana Julia Ferreira Lima
- Research Group on Protein Engineering and Health Solutions (GEPeSS), Oswaldo Cruz Foundation Ceará (Fiocruz-CE), São José, Precabura, 61773-270 Eusébio, Ceará, Brazil
- Federal University of Ceará (UFC), Pici campus (Building 873), 60440-970 Fortaleza, Ceará, Brazil
| | - Karina Lobo Hajdu
- Cell and Gene Therapy Program, Research coordination - Brazilian National Cancer Institute, Rio de Janeiro, Brazil
| | - Luiza Abdo
- Cell and Gene Therapy Program, Research coordination - Brazilian National Cancer Institute, Rio de Janeiro, Brazil
| | | | - Clara de Oliveira Andrade
- Cell and Gene Therapy Program, Research coordination - Brazilian National Cancer Institute, Rio de Janeiro, Brazil
| | - Eduardo Mannarino Correia
- Cell and Gene Therapy Program, Research coordination - Brazilian National Cancer Institute, Rio de Janeiro, Brazil
| | | | - Martín Hernán Bonamino
- Cell and Gene Therapy Program, Research coordination - Brazilian National Cancer Institute, Rio de Janeiro, Brazil
- Vice - Presidency of Research and Biological Collections (VPPCB), Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil
| | - Marcos Roberto Lourenzoni
- Research Group on Protein Engineering and Health Solutions (GEPeSS), Oswaldo Cruz Foundation Ceará (Fiocruz-CE), São José, Precabura, 61773-270 Eusébio, Ceará, Brazil
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2
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Keydel T, Link A. Synthetic Approaches, Properties, and Applications of Acylals in Preparative and Medicinal Chemistry. Molecules 2024; 29:4451. [PMID: 39339447 DOI: 10.3390/molecules29184451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2024] [Revised: 09/16/2024] [Accepted: 09/17/2024] [Indexed: 09/30/2024] Open
Abstract
Diesters of geminal diols (R-CH(O-CO-R')2, RR'C(OCOR″)2, etc. with R = H, aryl or alkyl) are termed acylals according to IUPAC recommendations (Rule P-65.6.3.6 Acylals) if the acids involved are carboxylic acids. Similar condensation products can be obtained from various other acidic structures as well, but these related "non-classical acylals", as one might call them, differ in various aspects from classical acylals and will not be discussed in this article. Carboxylic acid diesters of geminal diols play a prominent role in organic chemistry, not only in their application as protective groups for aldehydes and ketones but also as precursors in the total synthesis of natural compounds and in a variety of organic reactions. What is more, acylals are useful as a key structural motif in clinically validated prodrug approaches. In this review, we summarise the syntheses and chemical properties of such classical acylals and show what potentially under-explored possibilities exist in the field of drug design, especially prodrugs, and classify this functional group in medicinal chemistry.
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Affiliation(s)
- Tobias Keydel
- Institute of Pharmacy, University of Greifswald, 17489 Greifswald, Germany
| | - Andreas Link
- Institute of Pharmacy, University of Greifswald, 17489 Greifswald, Germany
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3
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Rossi GR, Sun J, Lin CY, Wong JK, Alim L, Lam PY, Khosrotehrani K, Wolvetang E, Cheetham SW, Derrick EB, Amoako A, Lehner C, Brooks AJ, Beavis PA, Souza-Fonseca-Guimaraes F. A scalable, spin-free approach to generate enhanced induced pluripotent stem cell-derived natural killer cells for cancer immunotherapy. Immunol Cell Biol 2024. [PMID: 39269338 DOI: 10.1111/imcb.12820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2024] [Revised: 08/26/2024] [Accepted: 08/26/2024] [Indexed: 09/15/2024]
Abstract
Natural killer (NK) cells play a vital role in innate immunity and show great promise in cancer immunotherapy. Traditional sources of NK cells, such as the peripheral blood, are limited by availability and donor variability. In addition, in vitro expansion can lead to functional exhaustion and gene editing challenges. This study aimed to harness induced pluripotent stem cell (iPSC) technology to provide a consistent and scalable source of NK cells, overcoming the limitations of traditional sources and enhancing the potential for cancer immunotherapy applications. We developed human placental-derived iPSC lines using reprogramming techniques. Subsequently, an optimized two-step differentiation protocol was introduced to generate high-purity NK cells. Initially, iPSCs were differentiated into hematopoietic-like stem cells using spin-free embryoid bodies (EBs). Subsequently, the EBs were transferred to ultra-low attachment plates to induce NK cell differentiation. iPSC-derived NK (iNK) cells expressed common NK cell markers (NKp46, NKp30, NKp44, CD16 and eomesodermin) at both RNA and protein levels. iNK cells demonstrated significant resilience to cryopreservation and exhibited enhanced cytotoxicity. The incorporation of a chimeric antigen receptor (CAR) construct further augmented their cytotoxic potential. This study exemplifies the feasibility of generating iNK cells with high purity and enhanced functional capabilities, their improved resilience to cryopreservation and the potential to have augmented cytotoxicity through CAR expression. Our findings offer a promising pathway for the development of potential cellular immunotherapies, highlighting the critical role of iPSC technology in overcoming challenges associated with traditional NK cell sources.
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Affiliation(s)
- Gustavo R Rossi
- Frazer Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, QLD, Australia
| | - Jane Sun
- Frazer Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, QLD, Australia
| | - Cheng-Yu Lin
- Frazer Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, QLD, Australia
| | - Joshua Km Wong
- Frazer Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, QLD, Australia
| | - Louisa Alim
- Frazer Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, QLD, Australia
| | - Pui Yeng Lam
- Frazer Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, QLD, Australia
| | - Kiarash Khosrotehrani
- Frazer Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, QLD, Australia
| | - Ernst Wolvetang
- Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St Lucia, QLD, Australia
| | - Seth W Cheetham
- Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St Lucia, QLD, Australia
- BASE Facility, University of Queensland, St Lucia, QLD, Australia
| | - Emily B Derrick
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Akwasi Amoako
- The Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia
| | - Christoph Lehner
- The Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia
| | - Andrew J Brooks
- Frazer Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, QLD, Australia
| | - Paul A Beavis
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
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4
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Trebesova H, Monaco M, Baldassari S, Ailuno G, Lancellotti E, Caviglioli G, Pittaluga AM, Grilli M. Unveiling Niaprazine's Potential: Behavioral Insights into a Re-Emerging Anxiolytic Agent. Biomedicines 2024; 12:2087. [PMID: 39335600 DOI: 10.3390/biomedicines12092087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2024] [Revised: 09/03/2024] [Accepted: 09/10/2024] [Indexed: 09/30/2024] Open
Abstract
Ongoing global research actions seek to comprehensively understand the adverse impact of stress and anxiety on the physical and mental health of both human beings and animals. Niaprazine (NIA) is a chemical compound that belongs to the class of piperazine derivatives. This compound has recently gained renewed attention due to its potential therapeutic properties for treating certain conditions such as anxiety. Despite its potential benefits, the behavioral effects of NIA have not been thoroughly investigated. This study aimed to examine NIA's potential as an anti-anxiety and anti-stress agent. After administering either vehicle or NIA in their drinking water to mice for 14 days, we conducted behavioral analyses using the Marble Burying Test and the Elevated Plus Maze test. NIA-treated mice spend more time in the open arms and bury fewer marbles. Moreover, a stability study confirmed the linear relationship between NIA concentration and its response across concentrations encompassing the NIA mother solution and the NIA solutions administered to mice. Also, a preliminary synaptic toxicity analysis showed no direct damage to cortical nerve endings. Here, we show that NIA can modulate anxiety-related behaviors without significantly impacting exploratory activity or adverse effects. Our work describes new findings that contribute to the research on safer and more tolerable anxiety management options.
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Affiliation(s)
- Hanna Trebesova
- Pharmacology and Toxicology Unit, Department of Pharmacy, University of Genova, 16148 Genoa, Italy
| | - Martina Monaco
- Pharmacology and Toxicology Unit, Department of Pharmacy, University of Genova, 16148 Genoa, Italy
| | - Sara Baldassari
- Pharmaceutical Technology Unit, Department of Pharmacy, University of Genova, 16148 Genoa, Italy
| | - Giorgia Ailuno
- Pharmaceutical Technology Unit, Department of Pharmacy, University of Genova, 16148 Genoa, Italy
| | | | - Gabriele Caviglioli
- Pharmaceutical Technology Unit, Department of Pharmacy, University of Genova, 16148 Genoa, Italy
| | - Anna Maria Pittaluga
- Pharmacology and Toxicology Unit, Department of Pharmacy, University of Genova, 16148 Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy
| | - Massimo Grilli
- Pharmacology and Toxicology Unit, Department of Pharmacy, University of Genova, 16148 Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy
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Sousa D, Fortunato MAG, Silva J, Pingo M, Martins A, Afonso CAM, Pedrosa R, Siopa F, Alves C. Sphaerococcenol A Derivatives: Design, Synthesis, and Cytotoxicity. Mar Drugs 2024; 22:408. [PMID: 39330289 PMCID: PMC11432771 DOI: 10.3390/md22090408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2024] [Revised: 08/29/2024] [Accepted: 08/29/2024] [Indexed: 09/28/2024] Open
Abstract
Sphaerococcenol A is a cytotoxic bromoditerpene biosynthesized by the red alga Sphaerococcus coronopifolius. A series of its analogues (1-6) was designed and semi-synthesized using thiol-Michael additions and enone reduction, and the structures of these analogues were characterized by spectroscopic methods. Cytotoxic analyses (1-100 µM; 24 h) were accomplished on A549, DU-145, and MCF-7 cells. The six novel sphaerococcenol A analogues displayed an IC50 range between 14.31 and 70.11 µM on A549, DU-145, and MCF-7 malignant cells. Compound 1, resulting from the chemical addition of 4-methoxybenzenethiol, exhibited the smallest IC50 values on the A549 (18.70 µM) and DU-145 (15.82 µM) cell lines, and compound 3, resulting from the chemical addition of propanethiol, exhibited the smallest IC50 value (14.31 µM) on MCF-7 cells. The highest IC50 values were exhibited by compound 4, suggesting that the chemical addition of benzylthiol led to a loss of cytotoxic activity. The remaining chemical modifications were not able to potentiate the cytotoxicity of the original compounds. Regarding A549 cell viability, analogue 1 exhibited a marked effect on mitochondrial function, which was accompanied by an increase in ROS levels, Caspase-3 activation, and DNA fragmentation and condensation. This study opens new avenues for research by exploring sphaerococcenol A as a scaffold for the synthesis of novel bioactive molecules.
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Affiliation(s)
- Dídia Sousa
- MARE—Marine and Environmental Sciences Centre/ARNET—Aquatic Research Network, ESTM, Politécnico de Leiria, 2520-614 Peniche, Portugal
| | - Milene A. G. Fortunato
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Joana Silva
- MARE—Marine and Environmental Sciences Centre/ARNET—Aquatic Research Network, ESTM, Politécnico de Leiria, 2520-614 Peniche, Portugal
| | - Mónica Pingo
- MARE—Marine and Environmental Sciences Centre/ARNET—Aquatic Research Network, ESTM, Politécnico de Leiria, 2520-614 Peniche, Portugal
| | - Alice Martins
- MARE—Marine and Environmental Sciences Centre/ARNET—Aquatic Research Network, ESTM, Politécnico de Leiria, 2520-614 Peniche, Portugal
| | - Carlos A. M. Afonso
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Rui Pedrosa
- MARE—Marine and Environmental Sciences Centre/ARNET—Aquatic Research Network, ESTM, Politécnico de Leiria, 2520-614 Peniche, Portugal
| | - Filipa Siopa
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Celso Alves
- MARE—Marine and Environmental Sciences Centre/ARNET—Aquatic Research Network, ESTM, Politécnico de Leiria, 2520-614 Peniche, Portugal
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6
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Wong JKM, McCulloch TR, Alim L, Omer N, Mehdi AM, Tuong ZK, Bonfim-Melo A, Chung E, Nicol A, Simpson F, Rhee H, Rossi GR, Souza-Fonseca-Guimaraes F. TGF-β signalling limits effector function capacity of NK cell anti-tumour immunity in human bladder cancer. EBioMedicine 2024; 104:105176. [PMID: 38810560 PMCID: PMC11154198 DOI: 10.1016/j.ebiom.2024.105176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 05/15/2024] [Accepted: 05/16/2024] [Indexed: 05/31/2024] Open
Abstract
BACKGROUND Natural killer (NK) cells are important innate immunity players and have unique abilities to recognize and eliminate cancer cells, particularly in settings of antibody-opsonization and antibody-dependant cellular cytotoxicity (ADCC). However, NK cell-based responses in bladder cancers to therapeutic antibodies are typically immunosuppressed, and these immunosuppressive mechanisms are largely unknown. METHODS Single cell RNA sequencing (scRNA-seq) and high-dimensional flow cytometry were used to investigate the phenotype of tumour-infiltrating NK cells in patients with bladder cancer. Further, in vitro, and in vivo models of this disease were used to validate these findings. FINDINGS NK cells within bladder tumours displayed reduced expression of FcγRIIIa/CD16, the critical Fc receptor involved in ADCC-mediated cytotoxicity, on both transcriptional and protein levels. Transcriptional signatures of transforming growth factor (TGF)-β-signalling, a pleiotropic cytokine known for its immunosuppressive and tissue residency-inducing effects, were upregulated in tumour-infiltrating NK cells. TGF-β mediated CD16 downregulation on NK cells, was further validated in vitro, which was accompanied by a transition into a tissue residency phenotype. This CD16 downregulation was also abrogated by TGF-βR signalling inhibition, which could also restore the ADCC ability of NK cells subject to TGF-β effects. In a humanized mouse model of bladder cancer, mice treated with a TGF-β inhibitor exhibited increased ADCC activity compared to mice treated only with antibodies. INTERPRETATION This study highlights how TGF-β-rich bladder cancers inhibit NK cell-mediated ADCC by downregulating CD16. TGF-β inhibition represents new avenues to reverse immunosuppression and enhance the tumoricidal capacity of NK cells in bladder cancer. FUNDING The Guimaraes Laboratory is funded by a US Department of Defense-Breast Cancer Research Program-Breakthrough Award Level 1 (#BC200025), a grant (#2019485) awarded through the Medical Research Future Fund (MRFF, with the support of the Queensland Children's Hospital Foundation, Microba Life Sciences, Richie's Rainbow Foundation, Translational Research Institute (TRI) and UQ), and a grant (#RSS_2023_085) funded by a Metro South Health Research Support Scheme. J.K.M.W. is funded by a UQ Research Training Program PhD Scholarship and N.O. is funded by a NHMRC Postgraduate Scholarship (#2021932).
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Affiliation(s)
- Joshua K M Wong
- Frazer Institute, The University of Queensland, Woolloongabba, QLD, 4102, Australia
| | - Timothy R McCulloch
- Frazer Institute, The University of Queensland, Woolloongabba, QLD, 4102, Australia
| | - Louisa Alim
- Frazer Institute, The University of Queensland, Woolloongabba, QLD, 4102, Australia
| | - Natacha Omer
- Frazer Institute, The University of Queensland, Woolloongabba, QLD, 4102, Australia
| | - Ahmed M Mehdi
- Frazer Institute, The University of Queensland, Woolloongabba, QLD, 4102, Australia; QCIF Bioinformatics, Queensland Cyber Infrastructure Foundation Ltd, Brisbane, Australia
| | - Zewen Kelvin Tuong
- Ian Frazer Centre for Children's Immunotherapy Research, Child Health Research Centre, Faculty of Medicine, The University of Queensland, South Brisbane, QLD, 4101, Australia
| | - Alexis Bonfim-Melo
- Frazer Institute, The University of Queensland, Woolloongabba, QLD, 4102, Australia
| | - Eric Chung
- Princess Alexandra Hospital and Queen Elizabeth Jubilee II Hospital, Woolloongabba, QLD, 4102, Australia
| | - Alice Nicol
- Princess Alexandra Hospital and Queen Elizabeth Jubilee II Hospital, Woolloongabba, QLD, 4102, Australia
| | - Fiona Simpson
- Frazer Institute, The University of Queensland, Woolloongabba, QLD, 4102, Australia
| | - Handoo Rhee
- Princess Alexandra Hospital and Queen Elizabeth Jubilee II Hospital, Woolloongabba, QLD, 4102, Australia
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7
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Kim SE, Yun S, Doh J, Kim HN. Imaging-Based Efficacy Evaluation of Cancer Immunotherapy in Engineered Tumor Platforms and Tumor Organoids. Adv Healthc Mater 2024:e2400475. [PMID: 38815251 DOI: 10.1002/adhm.202400475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 05/16/2024] [Indexed: 06/01/2024]
Abstract
Cancer immunotherapy is used to treat tumors by modulating the immune system. Although the anticancer efficacy of cancer immunotherapy has been evaluated prior to clinical trials, conventional in vivo animal and endpoint models inadequately replicate the intricate process of tumor elimination and reflect human-specific immune systems. Therefore, more sophisticated models that mimic the complex tumor-immune microenvironment must be employed to assess the effectiveness of immunotherapy. Additionally, using real-time imaging technology, a step-by-step evaluation can be applied, allowing for a more precise assessment of treatment efficacy. Here, an overview of the various imaging-based evaluation platforms recently developed for cancer immunotherapeutic applications is presented. Specifically, a fundamental technique is discussed for stably observing immune cell-based tumor cell killing using direct imaging, a microwell that reproduces a confined space for spatial observation, a droplet assay that facilitates cell-cell interactions, and a 3D microphysiological system that reconstructs the vascular environment. Furthermore, it is suggested that future evaluation platforms pursue more human-like immune systems.
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Affiliation(s)
- Seong-Eun Kim
- Brain Science Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, South Korea
| | - Suji Yun
- Interdisciplinary Program for Bioengineering, Seoul National University, Seoul, 08826, South Korea
| | - Junsang Doh
- Interdisciplinary Program for Bioengineering, Seoul National University, Seoul, 08826, South Korea
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Institute of Engineering Research, Bio-MAX institute, Soft Foundry Institute, Seoul National University, Seoul, 08826, South Korea
| | - Hong Nam Kim
- Brain Science Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, South Korea
- Division of Bio-Medical Science and Technology, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea
- School of Mechanical Engineering, Yonsei University, Seoul, 03722, Republic of Korea
- Yonsei-KIST Convergence Research Institute, Yonsei University, Seoul, 03722, Republic of Korea
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8
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Liljeqvist JÅ, Önnheim K, Tunbäck P, Eriksson K, Görander S, Bäckström M, Bergström T. Human Antibodies against Herpes Simplex Virus 2 Glycoprotein G Do Not Neutralize but Mediate Antibody-Dependent Cellular Cytotoxicity. Antibodies (Basel) 2024; 13:40. [PMID: 38804308 PMCID: PMC11130973 DOI: 10.3390/antib13020040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 03/27/2024] [Accepted: 04/30/2024] [Indexed: 05/29/2024] Open
Abstract
Herpes simplex virus 2 (HSV-2) is a sexually transmitted infection affecting 491 million individuals globally. Consequently, there is a great need for both prophylactic and therapeutic vaccines. Unfortunately, several vaccine clinical trials, primarily employing the glycoprotein D of HSV-2 (gD-2), have failed. The immune protection conferred by human anti-HSV-2 antibodies in genital infection and disease remains elusive. It is well-known that gD-2 elicits cross-reactive neutralizing antibodies, i.e., anti-gD-2 antibodies recognize gD in HSV-1 (gD-1). In contrast, anti-glycoprotein G in HSV-2 (mgG-2) antibodies are exclusively type-specific for HSV-2. In this study, truncated versions of gD-2 and mgG-2 were recombinantly produced in mammalian cells and used for the purification of anti-gD-2 and anti-mgG-2 antibodies from the serum of five HSV-2-infected subjects, creating a pool of purified antibodies. These antibody pools were utilized as standards together with purified mgG-2 and gD-2 antigens in ELISA to quantitatively estimate and compare the levels of cross-reactive anti-gD-1 and anti-gD-2 antibodies, as well as anti-mgG-2 antibodies in sera from HSV-1+2-, HSV-2-, and HSV-1-infected subjects. The median concentration of anti-mgG-2 antibodies was five times lower in HSV-1+2-infected subjects as compared with cross-reactive anti-gD-1 and anti-gD-2 antibodies, and three times lower in HSV-2 infected subjects as compared with anti-gD-2 antibodies. The pool of purified anti-gD-2 antibodies presented neutralization activity at low concentrations, while the pool of purified anti-mgG-2 antibodies did not. Instead, these anti-mgG-2 antibodies mediated antibody-dependent cellular cytotoxicity (ADCC) by human granulocytes, monocytes, and NK-cells, but displayed no complement-dependent cytotoxicity. These findings indicate that antibodies to mgG-2 in HSV-2-infected subjects are present at low concentrations but mediate the killing of infected cells via ADCC rather than by neutralizing free viral particles. We, and others, speculate that Fc-receptor mediated antibody functions such as ADCC following HSV-2 vaccination may serve as a better marker of protection correlate instead of neutralizing activity. In an mgG-2 therapeutic vaccine, our findings of low levels of anti-mgG-2 antibodies in HSV-2-infected subjects may suggest an opportunity to enhance the immune responses against mgG-2. In a prophylactic HSV-2 mgG-2 vaccine, a possible interference in cross-reactive immune responses in already infected HSV-1 subjects can be circumvented.
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Affiliation(s)
- Jan-Åke Liljeqvist
- Department of Infectious Diseases, Institute of Biomedicine, 413 90 Gothenburg, Sweden; (K.Ö.); (S.G.); (T.B.)
- Department of Clinical Microbiology, Region Västra Götaland, Sahlgrenska University Hospital, 413 46 Gothenburg, Sweden
| | - Karin Önnheim
- Department of Infectious Diseases, Institute of Biomedicine, 413 90 Gothenburg, Sweden; (K.Ö.); (S.G.); (T.B.)
- Department of Clinical Microbiology, Region Västra Götaland, Sahlgrenska University Hospital, 413 46 Gothenburg, Sweden
| | - Petra Tunbäck
- Department of Dermatology and Venereology, Institute of Clinical Sciences, University of Gothenburg, 413 45 Gothenburg, Sweden;
| | - Kristina Eriksson
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, 413 90 Gothenburg, Sweden;
| | - Staffan Görander
- Department of Infectious Diseases, Institute of Biomedicine, 413 90 Gothenburg, Sweden; (K.Ö.); (S.G.); (T.B.)
- Department of Clinical Microbiology, Region Västra Götaland, Sahlgrenska University Hospital, 413 46 Gothenburg, Sweden
| | - Malin Bäckström
- Mammalian Protein Expression Core Facility, The Sahlgrenska Academy, University of Gothenburg, 413 90 Gothenburg, Sweden;
| | - Tomas Bergström
- Department of Infectious Diseases, Institute of Biomedicine, 413 90 Gothenburg, Sweden; (K.Ö.); (S.G.); (T.B.)
- Department of Clinical Microbiology, Region Västra Götaland, Sahlgrenska University Hospital, 413 46 Gothenburg, Sweden
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9
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Welsh A, Serala K, Prince S, Smith GS. Selective Targeting of Regulated Rhabdomyosarcoma Cells by Trinuclear Ruthenium(II)-Arene Complexes. J Med Chem 2024; 67:6673-6686. [PMID: 38569098 PMCID: PMC11056987 DOI: 10.1021/acs.jmedchem.4c00256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/14/2024] [Accepted: 03/20/2024] [Indexed: 04/05/2024]
Abstract
The use of benzimidazole-based trinuclear ruthenium(II)-arene complexes (1-3) to selectively target the rare cancer rhabdomyosarcoma is reported. Preliminary cytotoxic evaluations of the ruthenium complexes in an eight-cancer cell line panel revealed enhanced, selective cytotoxicity toward rhabdomyosarcoma cells (RMS). The trinuclear complex 1 was noted to show superior short- and long-term cytotoxicity in RMS cell lines and enhanced selectivity relative to cisplatin. Remarkably, 1 inhibits the migration of metastatic RMS cells and maintains superior activity in a 3D multicellular spheroid model in comparison to that of the clinically used cisplatin. Mechanistic insights reveal that 1 effectively induces genomic DNA damage, initiates autophagy, and prompts the intrinsic and extrinsic apoptotic pathways in RMS cells. To the best of our knowledge, 1 is the first trinuclear ruthenium(II) arene complex to selectively kill RMS cells in 2D and 3D cell cultures.
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Affiliation(s)
- Athi Welsh
- Department
of Chemistry, University of Cape Town, Rondebosch, Cape Town 7700, South Africa
| | - Karabo Serala
- Department
of Human Biology, Faculty of Health Science, University of Cape Town, Observatory, Cape Town 7935, South Africa
| | - Sharon Prince
- Department
of Human Biology, Faculty of Health Science, University of Cape Town, Observatory, Cape Town 7935, South Africa
| | - Gregory S. Smith
- Department
of Chemistry, University of Cape Town, Rondebosch, Cape Town 7700, South Africa
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10
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Khalef L, Lydia R, Filicia K, Moussa B. Cell viability and cytotoxicity assays: Biochemical elements and cellular compartments. Cell Biochem Funct 2024; 42:e4007. [PMID: 38593323 DOI: 10.1002/cbf.4007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 03/01/2024] [Accepted: 03/29/2024] [Indexed: 04/11/2024]
Abstract
Cell viability and cytotoxicity assays play a crucial role in drug screening and evaluating the cytotoxic effects of various chemicals. The quantification of cell viability and proliferation serves as the cornerstone for numerous in vitro assays that assess cellular responses to external factors. In the last decade, several studies have developed guidelines for defining and interpreting cell viability and cytotoxicity based on morphological, biochemical, and functional perspectives. As this domain continues to experience ongoing growth, revealing new mechanisms orchestrating diverse cell cytotoxicity pathways, we suggest a revised classification for multiple assays employed in evaluating cell viability and cell death. This classification is rooted in the cellular compartment and/or biochemical element involved, with a specific focus on mechanistic and essential aspects of the process. The assays are founded on diverse cell functions, encompassing metabolic activity, enzyme activity, cell membrane permeability and integrity, adenosine 5'-triphosphate content, cell adherence, reduction equivalents, dye inclusion or exclusion, constitutive protease activity, colony formation, DNA fragmentation and nuclear splitting. These assays present straightforward, reliable, sensitive, reproducible, cost-effective, and high-throughput approaches for appraising the effects of newly formulated chemotherapeutic biomolecules on the cell survival during the drug development process.
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Affiliation(s)
- Lefsih Khalef
- Département de Biochimie et Microbiologie, Laboratoire d'Ecologie, Biotechnologie et Santé, Université Mouloud Mammeri de Tizi ouzou, Tizi Ouzou, Algeria
| | - Radja Lydia
- Département de Biochimie et Microbiologie, Laboratoire d'Ecologie, Biotechnologie et Santé, Université Mouloud Mammeri de Tizi ouzou, Tizi Ouzou, Algeria
| | - Khettar Filicia
- Département de Biochimie et Microbiologie, Laboratoire d'Ecologie, Biotechnologie et Santé, Université Mouloud Mammeri de Tizi ouzou, Tizi Ouzou, Algeria
| | - Berkoud Moussa
- Département de Biochimie et Microbiologie, Laboratoire d'Ecologie, Biotechnologie et Santé, Université Mouloud Mammeri de Tizi ouzou, Tizi Ouzou, Algeria
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11
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Feng Y, Xu X, Zhang J, Sanderson C, Xia J, Bu Z, Yang Y, Yang P, Lu Z. CD39 + tumor infiltrating T cells from colorectal cancers exhibit dysfunctional phenotype. Am J Cancer Res 2024; 14:585-600. [PMID: 38455401 PMCID: PMC10915329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 01/18/2024] [Indexed: 03/09/2024] Open
Abstract
Recent studies revealed that CD39 was highly expressed in tumor-specific CD4+ tumor infiltrating lymphocytes (TILs). However, the divergent function of CD39+ T cells remains to be elucidated in colorectal cancer (CRC). In this study, T cells from CRC patients and tumor-bearing mice were isolated to evaluate the function of CD39 in T cells. We found that CD39 was elevated in intratumoral T cells from CRC patients, and negatively correlated with cytokine secretion capacity. T cell activation induced CD39 expression, and CD39+ T cells produced more IFN-γ in response to CRC tumor antigens. In addition, CD39+ T cells in the spleens of tumor-bearing mice exhibited a stronger anti-tumor activity in vitro than CD39- T cells, but there was no significant difference in the anti-tumor activities between CD39- TILs and CD39+ TILs. Moreover, we found that CD39+ T cells expressed higher checkpoint molecules and contained a higher proportion of Treg cells than CD39- T cells, suggesting that CD39+ T cells may be correlated with an immunosuppressive phenotype. And CD39 expression on T cells could convert pro-inflammatory eATP to immunosuppressive eADO. However, both T cells from the vaccinated-wild-type mice and CD39-/- mice could recognize and eliminate tumor cells in vitro, and adoptive transfer of these T cells resulted in tumor growth inhibition in tumor-bearing mice. In conclusion, our study revealed the divergent functions of CD39+ T cells, which were reactive to tumor antigen but exhibited a dysfunctional phenotype.
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Affiliation(s)
- Yuan Feng
- China Regional Research Center, International Centre for Genetic Engineering and BiotechnologyTaizhou 225300, Jiangsu, P. R. China
- Department of Biological Sciences, School of Science, Xi’an Jiaotong-Liverpool UniversitySuzhou 215123, Jiangsu, P. R. China
| | - Xin Xu
- China Regional Research Center, International Centre for Genetic Engineering and BiotechnologyTaizhou 225300, Jiangsu, P. R. China
- Department of Emergency Medicine, The First Affiliated Hospital of Soochow UniversitySuzhou 215006, Jiangsu, P. R. China
| | - Jiaxin Zhang
- China Regional Research Center, International Centre for Genetic Engineering and BiotechnologyTaizhou 225300, Jiangsu, P. R. China
| | | | - Jun Xia
- Department of Emergency Medicine, The First Affiliated Hospital of Soochow UniversitySuzhou 215006, Jiangsu, P. R. China
| | - Zhang Bu
- Department of Emergency Medicine, The First Affiliated Hospital of Soochow UniversitySuzhou 215006, Jiangsu, P. R. China
| | - Yili Yang
- China Regional Research Center, International Centre for Genetic Engineering and BiotechnologyTaizhou 225300, Jiangsu, P. R. China
- Department of Biological Sciences, School of Science, Xi’an Jiaotong-Liverpool UniversitySuzhou 215123, Jiangsu, P. R. China
- Center for Self-propelled Nanotechnologies, College of Biotechnology, Suzhou Industrial Park Institute of Services OutsourcingSuzhou 215125, Jiangsu, P. R. China
| | - Peng Yang
- Department of Emergency Medicine, The First Affiliated Hospital of Soochow UniversitySuzhou 215006, Jiangsu, P. R. China
| | - Zhiliang Lu
- Department of Biological Sciences, School of Science, Xi’an Jiaotong-Liverpool UniversitySuzhou 215123, Jiangsu, P. R. China
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12
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Ghosh S, Tamilselvi S, Williams C, Jayaweera SW, Iashchishyn IA, Šulskis D, Gilthorpe JD, Olofsson A, Smirnovas V, Svedružić ŽM, Morozova-Roche LA. ApoE Isoforms Inhibit Amyloid Aggregation of Proinflammatory Protein S100A9. Int J Mol Sci 2024; 25:2114. [PMID: 38396791 PMCID: PMC10889306 DOI: 10.3390/ijms25042114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/31/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
Increasing evidence suggests that the calcium-binding and proinflammatory protein S100A9 is an important player in neuroinflammation-mediated Alzheimer's disease (AD). The amyloid co-aggregation of S100A9 with amyloid-β (Aβ) is an important hallmark of this pathology. Apolipoprotein E (ApoE) is also known to be one of the important genetic risk factors of AD. ApoE primarily exists in three isoforms, ApoE2 (Cys112/Cys158), ApoE3 (Cys112/Arg158), and ApoE4 (Arg112/Arg158). Even though the difference lies in just two amino acid residues, ApoE isoforms produce differential effects on the neuroinflammation and activation of the microglial state in AD. Here, we aim to understand the effect of the ApoE isoforms on the amyloid aggregation of S100A9. We found that both ApoE3 and ApoE4 suppress the aggregation of S100A9 in a concentration-dependent manner, even at sub-stoichiometric ratios compared to S100A9. These interactions lead to a reduction in the quantity and length of S100A9 fibrils. The inhibitory effect is more pronounced if ApoE isoforms are added in the lipid-free state versus lipidated ApoE. We found that, upon prolonged incubation, S100A9 and ApoE form low molecular weight complexes with stochiometric ratios of 1:1 and 2:1, which remain stable under SDS-gel conditions. These complexes self-assemble also under the native conditions; however, their interactions are transient, as revealed by glutaraldehyde cross-linking experiments and molecular dynamics (MD) simulation. MD simulation demonstrated that the lipid-binding C-terminal domain of ApoE and the second EF-hand calcium-binding motif of S100A9 are involved in these interactions. We found that amyloids of S100A9 are cytotoxic to neuroblastoma cells, and the presence of either ApoE isoforms does not change the level of their cytotoxicity. A significant inhibitory effect produced by both ApoE isoforms on S100A9 amyloid aggregation can modulate the amyloid-neuroinflammatory cascade in AD.
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Affiliation(s)
- Shamasree Ghosh
- Department of Medical Biochemistry and Biophysics, Umeå University, SE-90187 Umeå, Sweden; (S.G.); (S.T.); (I.A.I.)
| | - Shanmugam Tamilselvi
- Department of Medical Biochemistry and Biophysics, Umeå University, SE-90187 Umeå, Sweden; (S.G.); (S.T.); (I.A.I.)
| | - Chloe Williams
- Department of Medical and Translational Biology, Umeå University, SE-90187 Umeå, Sweden; (C.W.); (J.D.G.)
| | - Sanduni W. Jayaweera
- Department of Clinical Microbiology, Umeå University, SE-90187 Umeå, Sweden; (S.W.J.); (A.O.)
| | - Igor A. Iashchishyn
- Department of Medical Biochemistry and Biophysics, Umeå University, SE-90187 Umeå, Sweden; (S.G.); (S.T.); (I.A.I.)
| | - Darius Šulskis
- Institute of Biotechnology, Life Sciences Center, Vilnius University, LT-10257 Vilnius, Lithuania; (D.Š.); (V.S.)
| | - Jonathan D. Gilthorpe
- Department of Medical and Translational Biology, Umeå University, SE-90187 Umeå, Sweden; (C.W.); (J.D.G.)
| | - Anders Olofsson
- Department of Clinical Microbiology, Umeå University, SE-90187 Umeå, Sweden; (S.W.J.); (A.O.)
| | - Vytautas Smirnovas
- Institute of Biotechnology, Life Sciences Center, Vilnius University, LT-10257 Vilnius, Lithuania; (D.Š.); (V.S.)
| | | | - Ludmilla A. Morozova-Roche
- Department of Medical Biochemistry and Biophysics, Umeå University, SE-90187 Umeå, Sweden; (S.G.); (S.T.); (I.A.I.)
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13
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Kang C, Yun WS, Jeong YM. A simple and rapid assay of lysosomal-targeting CDy6 for long-term real-time viability assessments in 2D and 3D in vitro culture models. Sci Rep 2023; 13:23038. [PMID: 38155155 PMCID: PMC10754854 DOI: 10.1038/s41598-023-49844-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 12/12/2023] [Indexed: 12/30/2023] Open
Abstract
CDy6, a BODIPY-derived compound, is used to label lysosomes and visualize proliferating cells. However, its effectiveness in long-term, real-time cell viability assays using 2D or 3D cell culture models is unclear. We evaluated the suitability of CDy6 by assessing cell health using human keratinocyte and fibroblast cell lines in both models. Cells were stained with CDy6 or other dyes and fluorescent images were obtained with confocal microscopy. CLV extracts derived from CDy6-stained HaCaT cells were also dissolved with DMSO and analyzed using a spectrometer. Furthermore, we added CDy6-stained collagen hydrogels to CCD-986sk cells, loaded them into a frame construction to establish a 3D dermal layer for long-term culture, and analyzed the status of the CLVs. The CLV method, also measured using a spectrometer, yielded results similar to MTT assay for validating viability. In contrast to calcein AM staining, the CLV method allows for both absorbance measurement and imaging under short-term and long-term culture conditions with less cytotoxicity. In conclusion, the CLV method provides a simple and sensitive tool for assessing the status of live cells in 2D and 3D in vitro cell culture models and can be used as an alternative to animal testing, such as with 3D artificial skin models.
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Affiliation(s)
- Chanhan Kang
- Department of Mechanical Engineering, Tech University of Korea, 237 Sangidaehak Street, Si-Heung City, Republic of Korea
| | - Won-Soo Yun
- Department of Mechanical Engineering, Tech University of Korea, 237 Sangidaehak Street, Si-Heung City, Republic of Korea
| | - Yun-Mi Jeong
- Department of Mechanical Engineering, Tech University of Korea, 237 Sangidaehak Street, Si-Heung City, Republic of Korea.
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14
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Srisongkram T, Syahid NF, Piyasawetkul T, Thirawatthanasak P, Khamtang P, Sawasnopparat N, Tookkane D, Weerapreeyakul N, Puthongking P. Prediction of Spheroid Cell Death Using Fluorescence Staining and Convolutional Neural Networks. Chem Res Toxicol 2023; 36:1980-1989. [PMID: 38052002 DOI: 10.1021/acs.chemrestox.3c00257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
Three-dimensional (3D) cell culture is emerging for drug design and drug screening. Skin toxicity is one of the most important assays for determining the toxicity of a compound before being used in skin application. Much work has been done to find an alternative assay without animal experiments. 3D cell culture is one of the methods that provides clinically relevant models with superior clinical translation compared to that of 2D cell culture. In this study, we developed a spheroid toxicity assay using keratinocyte HaCaT cells with propidium iodide and calcein AM. We also applied the transfer learning-containing convolutional neural network (CNN) to further determine spheroid cell death with fluorescence labeling. Our result shows that the morphologies of the spheroid are the key features in determining the apoptosis cell death of the HaCaT spheroid. Our CNN model provided good statistical measurement in terms of accuracy, precision, and recall in both validation and external test data sets. One can predict keratinocyte spheroid cell death if that spheroid image contains the fluorescence signals from propidium iodide and calcein AM. The CNN model can be accessed in the web application at https://qsarlabs.com/#spheroiddeath.
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Affiliation(s)
- Tarapong Srisongkram
- Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Nur Fadhilah Syahid
- Graduate School in the Program of Pharmaceutical Chemistry and Natural Products, Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Thanawat Piyasawetkul
- Doctor of Pharmacy Program, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Pannaphat Thirawatthanasak
- Doctor of Pharmacy Program, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Patcharapa Khamtang
- Doctor of Pharmacy Program, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Nathida Sawasnopparat
- Doctor of Pharmacy Program, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Dheerapat Tookkane
- Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Natthida Weerapreeyakul
- Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Ploenthip Puthongking
- Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
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15
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Au KM, Wilson JE, Ting JPY, Wang AZ. An injectable subcutaneous colon-specific immune niche for the treatment of ulcerative colitis. Nat Biomed Eng 2023:10.1038/s41551-023-01136-9. [PMID: 38049469 DOI: 10.1038/s41551-023-01136-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 10/14/2023] [Indexed: 12/06/2023]
Abstract
As a chronic autoinflammatory condition, ulcerative colitis is often managed via systemic immunosuppressants. Here we show, in three mouse models of established ulcerative colitis, that a subcutaneously injected colon-specific immunosuppressive niche consisting of colon epithelial cells, decellularized colon extracellular matrix and nanofibres functionalized with programmed death-ligand 1, CD86, a peptide mimic of transforming growth factor-beta 1, and the immunosuppressive small-molecule leflunomide, induced intestinal immunotolerance and reduced inflammation in the animals' lower gastrointestinal tract. The bioengineered colon-specific niche triggered autoreactive T cell anergy and polarized pro-inflammatory macrophages via multiple immunosuppressive pathways, and prevented the infiltration of immune cells into the colon's lamina propria, promoting the recovery of epithelial damage. The bioengineered niche also prevented colitis-associated colorectal cancer and eliminated immune-related colitis triggered by kinase inhibitors and immune checkpoint blockade.
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Affiliation(s)
- Kin Man Au
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
| | - Justin E Wilson
- Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Microbiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Jenny P-Y Ting
- Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Microbiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Andrew Z Wang
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
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16
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Motais B, Charvátová S, Walek Z, Hájek R, Bagó JR. NK92 Expressing Anti-BCMA CAR and Secreted TRAIL for the Treatment of Multiple Myeloma: Preliminary In Vitro Assessment. Cells 2023; 12:2748. [PMID: 38067177 PMCID: PMC10706019 DOI: 10.3390/cells12232748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/03/2023] [Accepted: 11/28/2023] [Indexed: 12/18/2023] Open
Abstract
Multiple myeloma (MM) has witnessed improved patient outcomes through advancements in therapeutic approaches. Notably, allogeneic stem cell transplantation, proteasome inhibitors, immunomodulatory drugs, and monoclonal antibodies have contributed to enhanced quality of life. Recently, a promising avenue has emerged with chimeric antigen receptor (CAR) T cells targeting B-cell maturation antigen (BCMA), expressed widely on MM cells. To mitigate risks associated with allogenic T cells, we investigated the potential of BCMA CAR expression in natural killer cells (NKs), known for potent cytotoxicity and minimal side effects. Using the NK-92 cell line, we co-expressed BCMA CAR and soluble tumor necrosis factor-related apoptosis-inducing ligand (sTRAIL) employing the piggyBac transposon system. Engineered NK cells (CAR-NK-92-TRAIL) demonstrated robust cytotoxicity against a panel of MM cell lines and primary patient samples, outperforming unmodified NK-92 cells with a mean difference in viability of 45.1% (±26.1%, depending on the target cell line). Combination therapy was explored with the proteasome inhibitor bortezomib (BZ) and γ-secretase inhibitors (GSIs), leading to a significant synergistic effect in combination with CAR-NK-92-TRAIL cells. This synergy was evident in cytotoxicity assays where a notable decrease in MM cell viability was observed in combinatorial therapy compared to single treatment. In summary, our study demonstrates the therapeutic potential of the CAR-NK-92-TRAIL cells for the treatment of MM. The synergistic impact of combining these engineered NK cells with BZ and GSI supports further development of allogeneic CAR-based products for effective MM therapy.
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Affiliation(s)
- Benjamin Motais
- Department of Haematooncology, Faculty of Medicine, University of Ostrava, 703 00 Ostrava, Czech Republic; (B.M.); (S.C.); (Z.W.); (R.H.)
- Faculty of Science, University of Ostrava, 701 00 Ostrava, Czech Republic
| | - Sandra Charvátová
- Department of Haematooncology, Faculty of Medicine, University of Ostrava, 703 00 Ostrava, Czech Republic; (B.M.); (S.C.); (Z.W.); (R.H.)
- Faculty of Science, University of Ostrava, 701 00 Ostrava, Czech Republic
- Department of Haematooncology, University Hospital Ostrava, 708 00 Ostrava, Czech Republic
| | - Zuzana Walek
- Department of Haematooncology, Faculty of Medicine, University of Ostrava, 703 00 Ostrava, Czech Republic; (B.M.); (S.C.); (Z.W.); (R.H.)
| | - Roman Hájek
- Department of Haematooncology, Faculty of Medicine, University of Ostrava, 703 00 Ostrava, Czech Republic; (B.M.); (S.C.); (Z.W.); (R.H.)
- Department of Haematooncology, University Hospital Ostrava, 708 00 Ostrava, Czech Republic
| | - Juli R. Bagó
- Department of Haematooncology, Faculty of Medicine, University of Ostrava, 703 00 Ostrava, Czech Republic; (B.M.); (S.C.); (Z.W.); (R.H.)
- Department of Haematooncology, University Hospital Ostrava, 708 00 Ostrava, Czech Republic
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17
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Wang Y, Li X, Yan C, Xie L, Yang Y. Baicalin Exhibits a Protective Effect against Cisplatin-Induced Cytotoxic Damage in Canine Renal Tubular Epithelial Cells. Metabolites 2023; 13:1173. [PMID: 38132855 PMCID: PMC10745033 DOI: 10.3390/metabo13121173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/14/2023] [Accepted: 11/20/2023] [Indexed: 12/23/2023] Open
Abstract
Renal failure is a common chronic disease in dogs that substantially affects both their quality of life and longevity. The objective of this study was to assess the protective mechanisms of baicalin in cisplatin-induced Madin-Darby canine kidney (MDCK) epithelial cells' apoptosis model and explore the impacts of baicalin at varying doses on various indexes, such as cisplatin-induced MDCK cell apoptosis, oxidation and antioxidation, and inflammatory factors. (Methods) MDCK cells in the logarithmic growth phase were randomly divided into a control group, a model group (20 μmol/L cisplatin), and a baicalin-protection group (20 μmol/L cisplatin + 50, 25 μmol/L baicalin) and received the corresponding treatments for 24 h. The effects of cisplatin on MDCK cell apoptosis, oxidation and antioxidation, inflammatory factors, and other indicators were studied, and the relieving effect of baicalin on cisplatin-induced MDCK cell damage was explored. Calcein/PI staining and Annexin V-FITC/PI staining showed that cisplatin induced the apoptosis of MDCK cells, while baicalin effectively reduced the damage caused by cisplatin. The ELISA results demonstrated a significant elevation in the nitric oxide (NO) and malondialdehyde (MDA) levels within the MDCK cells following treatment with cisplatin (p < 0.01). In addition, superoxide dismutase (SOD), glutathione peroxidase (GSH), and catalase (CAT) activities remarkably declined (p < 0.01), while tumor necrosis factor α (TNF-α), interleukin-1β (IL-1β), and interleukin-6 (IL-6) expression within the MDCK cells were apparently elevated (p < 0.01). However, baicalin treatment resulted in opposite changes in these factors. The findings suggested that baicalin exhibits potential in mitigating cisplatin-induced oxidative stress and inflammation in MDCK cells. As revealed with the Western blot results, cisplatin promoted P62, P53, and BAX protein levels, increased mTOR phosphorylation, inhibited AMPK phosphorylation, and reduced Beclin1 and BCL-2 protein levels. However, a contrasting trend was observed following baicalin treatment. Cisplatin can inhibit the activity of MDCK cells, lead to abnormalities in oxidation and antioxidation functions and cell inflammatory factors, and accelerate cell apoptosis. Moreover, baicalin can significantly alleviate the damage of cisplatin to MDCK cells.
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Affiliation(s)
- Yao Wang
- College of Police Dog Technology, Criminal Investigation Police University of China, Shenyang 110854, China; (Y.W.); (C.Y.)
| | - Xiao Li
- Institute of Special Wild Economic Animals and Plants, Chinese Academy of Agricultural Sciences, Changchun 130112, China;
| | - Chuanguo Yan
- College of Police Dog Technology, Criminal Investigation Police University of China, Shenyang 110854, China; (Y.W.); (C.Y.)
| | - Liuwei Xie
- The Second Affiliated Hospital of Shenyang Medical College, Shenyang 110031, China
| | - Yang Yang
- The Second Affiliated Hospital of Shenyang Medical College, Shenyang 110031, China
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18
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Lopez KJ, Spence JP, Li W, Zhang W, Wei B, Cross-Najafi AA, Butler JR, Cooper DKC, Ekser B, Li P. Porcine UL-16 Binding Protein 1 Is Not a Functional Ligand for the Human Natural Killer Cell Activating Receptor NKG2D. Cells 2023; 12:2587. [PMID: 37998322 PMCID: PMC10670462 DOI: 10.3390/cells12222587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 11/06/2023] [Accepted: 11/06/2023] [Indexed: 11/25/2023] Open
Abstract
Natural killer (NK) cells play a vital role in xenotransplantation rejection. One approach to induce NK cell immune tolerance is to prevent the NK cell-mediated direct killing of porcine cells by targeting the interaction of the activating receptor NKG2D and its ligands. However, the identity of porcine ligands for the human NKG2D receptor has remained elusive. Previous studies on porcine UL-16 binding protein 1 (pULBP-1) as a ligand for human NKG2D have yielded contradictory results. The goal of the present study was to clarify the role of pULBP-1 in the immune response and its interaction with human NKG2D receptor. To accomplish this, the CRISPR/Cas9 gene editing tool was employed to disrupt the porcine ULBP-1 gene in a 5-gene knockout porcine endothelial cell line (GGTA1, CMAH, β4galNT2, SLA-I α chain, and β-2 microglobulin, 5GKO). A colony with two allele mutations in pULBP-1 was established as a 6-gene knockout pig cell line (6GKO). We found that pULBP-1-deficient pig cells exhibited a reduced binding capacity to human NKG2D-Fc, a recombinant chimera protein. However, the removal of ULBP-1 from porcine endothelial cells did not significantly impact human NK cell degranulation or cytotoxicity upon stimulation with the pig cells. These findings conclusively demonstrate that pULBP-1 is not a crucial ligand for initiating xenogeneic human NK cell activation.
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Affiliation(s)
- Kevin J. Lopez
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (K.J.L.); (W.Z.); (B.W.); (A.A.C.-N.); (J.R.B.)
| | - John Paul Spence
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA;
| | - Wei Li
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA;
| | - Wenjun Zhang
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (K.J.L.); (W.Z.); (B.W.); (A.A.C.-N.); (J.R.B.)
| | - Barry Wei
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (K.J.L.); (W.Z.); (B.W.); (A.A.C.-N.); (J.R.B.)
| | - Arthur A. Cross-Najafi
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (K.J.L.); (W.Z.); (B.W.); (A.A.C.-N.); (J.R.B.)
| | - James R. Butler
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (K.J.L.); (W.Z.); (B.W.); (A.A.C.-N.); (J.R.B.)
| | - David K. C. Cooper
- Center for Transplantation Sciences, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA;
| | - Burcin Ekser
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (K.J.L.); (W.Z.); (B.W.); (A.A.C.-N.); (J.R.B.)
| | - Ping Li
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (K.J.L.); (W.Z.); (B.W.); (A.A.C.-N.); (J.R.B.)
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19
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McKinley S, Taylor A, Peeples C, Jacob M, Khaparde G, Walter Y, Ekpenyong A. Simulated Microgravity-Induced Changes to Drug Response in Cancer Cells Quantified Using Fluorescence Morphometry. Life (Basel) 2023; 13:1683. [PMID: 37629540 PMCID: PMC10455503 DOI: 10.3390/life13081683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/31/2023] [Accepted: 08/02/2023] [Indexed: 08/27/2023] Open
Abstract
Unlike plants that have special gravity-sensing cells, such special cells in animals are yet to be discovered. However, microgravity, the condition of apparent weightlessness, causes bone, muscular and immune system dysfunctions in astronauts following spaceflights. Decades of investigations show correlations between these organ and system-level dysfunctions with changes induced at the cellular level both by simulated microgravity as well as microgravity conditions in outer space. Changes in single bone, muscle and immune cells include morphological abnormalities, altered gene expression, protein expression, metabolic pathways and signaling pathways. These suggest that human cells mount some response to microgravity. However, the implications of such adjustments on many cellular functions and responses are not clear. Here, we addressed the question whether microgravity induces alterations to drug response in cancer cells. We used both adherent cancer cells (T98G) and cancer cells in suspension (K562) to confirm the known effects of simulated microgravity and then treated the K562 cells with common cancer drugs (hydroxyurea and paclitaxel) following 48 h of exposure to simulated microgravity via a NASA-developed rotary cell culture system. Through fluorescence-guided morphometry, we found that microgravity abolished a significant reduction (p < 0.01) in the nuclear-to-cytoplasm ratio of cancer cells treated with hydroxyurea. Our results call for more studies on the impact of microgravity on cellular drug response, in light of the growing need for space medicine, as space exploration grows.
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Affiliation(s)
- Spencer McKinley
- Biology Department, Creighton University, Omaha, NE 68178, USA; (S.M.); (A.T.); (M.J.); (G.K.)
| | - Adam Taylor
- Biology Department, Creighton University, Omaha, NE 68178, USA; (S.M.); (A.T.); (M.J.); (G.K.)
| | - Conner Peeples
- Physics Department, Creighton University, Omaha, NE 68178, USA; (C.P.); (Y.W.)
| | - Megha Jacob
- Biology Department, Creighton University, Omaha, NE 68178, USA; (S.M.); (A.T.); (M.J.); (G.K.)
| | - Gargee Khaparde
- Biology Department, Creighton University, Omaha, NE 68178, USA; (S.M.); (A.T.); (M.J.); (G.K.)
| | - Yohan Walter
- Physics Department, Creighton University, Omaha, NE 68178, USA; (C.P.); (Y.W.)
| | - Andrew Ekpenyong
- Physics Department, Creighton University, Omaha, NE 68178, USA; (C.P.); (Y.W.)
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20
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Leland P, Kumar D, Nimmagadda S, Bauer SR, Puri RK, Joshi BH. Characterization of chimeric antigen receptor modified T cells expressing scFv-IL-13Rα2 after radiolabeling with 89Zirconium oxine for PET imaging. J Transl Med 2023; 21:367. [PMID: 37286997 PMCID: PMC10246418 DOI: 10.1186/s12967-023-04142-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 04/19/2023] [Indexed: 06/09/2023] Open
Abstract
BACKGROUND Chimeric antigen receptor (CAR) T cell therapy is an exciting cell-based cancer immunotherapy. Unfortunately, CAR-T cell therapy is associated with serious toxicities such as cytokine release syndrome (CRS) and neurotoxicity. The mechanism of these serious adverse events (SAEs) and how homing, distribution and retention of CAR-T cells contribute to toxicities is not fully understood. Enabling in vitro methods to allow meaningful, sensitive in vivo biodistribution studies is needed to better understand CAR-T cell disposition and its relationship to both effectiveness and safety of these products. METHODS To determine if radiolabelling of CAR-T cells could support positron emission tomography (PET)-based biodistribution studies, we labeled IL-13Rα2 targeting scFv-IL-13Rα2-CAR-T cells (CAR-T cells) with 89Zirconium-oxine (89Zr-oxine) and characterized and compared their product attributes with non-labeled CAR-T cells. The 89Zr-oxine labeling conditions were optimized for incubation time, temperature, and use of serum for labeling. In addition, T cell subtype characterization and product attributes of radiolabeled CAR-T cells were studied to assess their overall quality including cell viability, proliferation, phenotype markers of T-cell activation and exhaustion, cytolytic activity and release of interferon-γ upon co-culture with IL-13Rα2 expressing glioma cells. RESULTS We observed that radiolabeling of CAR-T cells with 89Zr-oxine is quick, efficient, and radioactivity is retained in the cells for at least 8 days with minimal loss. Also, viability of radiolabeled CAR-T cells and subtypes such as CD4 + , CD8 + and scFV-IL-13Rα2 transgene positive T cell population were characterized and found similar to that of unlabeled cells as determined by TUNEL assay, caspase 3/7 enzyme and granzyme B activity assay. Moreover, there were no significant changes in T cell activation (CD24, CD44, CD69 and IFN-γ) or T cell exhaustion (PD-1, LAG-3 and TIM3) markers expression between radiolabeled and unlabeled CAR-T cells. In chemotaxis assays, migratory capability of radiolabeled CAR-T cells to IL-13Rα2Fc was similar to that of non-labeled cells. CONCLUSIONS Importantly, radiolabeling has minimal impact on biological product attributes including potency of CAR-T cells towards IL-13Rα2 positive tumor cells but not IL-13Rα2 negative cells as measured by cytolytic activity and release of IFN-γ. Thus, IL-13Rα2 targeting CAR-T cells radiolabeled with 89Zr-oxine retain critical product attributes and suggest 89Zr-oxine radiolabeling of CAR-T cells may facilitate biodistribution and tissue trafficking studies in vivo using PET.
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Affiliation(s)
- Pamela Leland
- Tumor Vaccines and Biotechnology Branch, Division of Cellular and Gene Therapies, Office of Tissues and Advance Therapies, Center for Biologics Evaluation and Research, US Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
| | - Dhiraj Kumar
- Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Sridhar Nimmagadda
- Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Steven R Bauer
- Tumor Vaccines and Biotechnology Branch, Division of Cellular and Gene Therapies, Office of Tissues and Advance Therapies, Center for Biologics Evaluation and Research, US Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
- Wake Forest Institute of Regenerative Medicine, Winston Salem, North Caroline, USA
| | - Raj K Puri
- Tumor Vaccines and Biotechnology Branch, Division of Cellular and Gene Therapies, Office of Tissues and Advance Therapies, Center for Biologics Evaluation and Research, US Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
- Iovance Biotherapeutics, San Carlos, CA, USA
| | - Bharat H Joshi
- Tumor Vaccines and Biotechnology Branch, Division of Cellular and Gene Therapies, Office of Tissues and Advance Therapies, Center for Biologics Evaluation and Research, US Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA.
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21
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Amin PJ, Shankar BS. Arabinogalactan G1-4A isolated from Tinospora cordifolia induces PKC/mTOR mediated direct activation of natural killer cells and through dendritic cell cross-talk. Biochim Biophys Acta Gen Subj 2023; 1867:130312. [PMID: 36690186 DOI: 10.1016/j.bbagen.2023.130312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 12/08/2022] [Accepted: 01/17/2023] [Indexed: 01/21/2023]
Abstract
BACKGROUND Tinospora cordifolia polysaccharide G1-4A activates antigen-presenting cells, but its effect on natural killer (NK) cells is not known. The objective of this study is to assess the effect of G1-4A on NK cells; direct effects as well as through dendritic cell (DC) cross-talk. METHODS NK cell phenotype and function were assessed in spleen cells treated in vitro with G1-4A or isolated from mice administered with G1-4A. Following treatment with G1-4A in vitro or in cells isolated from G1-4A treated mice (in vivo), activated NK cell phenotype was characterized as CD3-NKp46+CD69+ cells by flow cytometry; NK cell function was evaluated by IFN-γ secretion (ELISA) and cytotoxicity assay (calcein release by target cells in effector: target cells co-culture assay). RESULTS Both in vitro as well as in vivoG1-4A treatment increased phenotypic and functional activation of NK cells. So, we wanted to determine if this was through NK-DC crosstalk or direct activation of NK cells. There was increased NK cell activation following co-culture with bone marrow derived DC matured withG1-4A in vitro or splenic DC isolated from G1-4A administered mice indicating crosstalk. G1-4A also increased activation of NK cells in (a) CD11c depleted splenic cells that was contact dependent and (b) purified NKp46+ cells that was abrogated by PKC/mTOR inhibitors indicating direct effects on NK cells. CONCLUSION In summary, treatment with G1-4A results in phenotypic and functional activation of NK cells directly as well as through NK-DC cross talk and has the potential to be used as an immunotherapeutic agent.
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Affiliation(s)
- Prayag J Amin
- Immunology Section, Radiation Biology & Health Sciences Division, Bio-Science Group, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Bhavani S Shankar
- Immunology Section, Radiation Biology & Health Sciences Division, Bio-Science Group, Bhabha Atomic Research Centre, Mumbai 400 085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India.
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22
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Hu J, Sánchez-Rivera FJ, Wang Z, Johnson GN, Ho YJ, Ganesh K, Umeda S, Gan S, Mujal AM, Delconte RB, Hampton JP, Zhao H, Kottapalli S, de Stanchina E, Iacobuzio-Donahue CA, Pe'er D, Lowe SW, Sun JC, Massagué J. STING inhibits the reactivation of dormant metastasis in lung adenocarcinoma. Nature 2023; 616:806-813. [PMID: 36991128 PMCID: PMC10569211 DOI: 10.1038/s41586-023-05880-5] [Citation(s) in RCA: 51] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 02/22/2023] [Indexed: 03/31/2023]
Abstract
Metastasis frequently develops from disseminated cancer cells that remain dormant after the apparently successful treatment of a primary tumour. These cells fluctuate between an immune-evasive quiescent state and a proliferative state liable to immune-mediated elimination1-6. Little is known about the clearing of reawakened metastatic cells and how this process could be therapeutically activated to eliminate residual disease in patients. Here we use models of indolent lung adenocarcinoma metastasis to identify cancer cell-intrinsic determinants of immune reactivity during exit from dormancy. Genetic screens of tumour-intrinsic immune regulators identified the stimulator of interferon genes (STING) pathway as a suppressor of metastatic outbreak. STING activity increases in metastatic progenitors that re-enter the cell cycle and is dampened by hypermethylation of the STING promoter and enhancer in breakthrough metastases or by chromatin repression in cells re-entering dormancy in response to TGFβ. STING expression in cancer cells derived from spontaneous metastases suppresses their outgrowth. Systemic treatment of mice with STING agonists eliminates dormant metastasis and prevents spontaneous outbreaks in a T cell- and natural killer cell-dependent manner-these effects require cancer cell STING function. Thus, STING provides a checkpoint against the progression of dormant metastasis and a therapeutically actionable strategy for the prevention of disease relapse.
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Affiliation(s)
- Jing Hu
- Cancer Biology and Genetics Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Francisco J Sánchez-Rivera
- Cancer Biology and Genetics Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Zhenghan Wang
- Cancer Biology and Genetics Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Gabriela N Johnson
- Cancer Biology and Genetics Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Yu-Jui Ho
- Cancer Biology and Genetics Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Karuna Ganesh
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Shigeaki Umeda
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Siting Gan
- Cancer Biology and Genetics Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Adriana M Mujal
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Rebecca B Delconte
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jessica P Hampton
- Cancer Biology and Genetics Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Huiyong Zhao
- Antitumor Assessment Core, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Sanjay Kottapalli
- Computational and Systems Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Elisa de Stanchina
- Antitumor Assessment Core, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Christine A Iacobuzio-Donahue
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Dana Pe'er
- Computational and Systems Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- The Alan and Sandra Gerry Metastasis and Tumor Ecosystems Center, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Howard Hughes Medical Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Scott W Lowe
- Cancer Biology and Genetics Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Howard Hughes Medical Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Joseph C Sun
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Joan Massagué
- Cancer Biology and Genetics Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
- The Alan and Sandra Gerry Metastasis and Tumor Ecosystems Center, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
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23
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Schallmoser A, Einenkel R, Färber C, Emrich N, John J, Sänger N. The effect of high-throughput vitrification of human ovarian cortex tissue on follicular viability: a promising alternative to conventional slow freezing? Arch Gynecol Obstet 2023; 307:591-599. [PMID: 36175682 PMCID: PMC9918590 DOI: 10.1007/s00404-022-06797-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 09/17/2022] [Indexed: 11/02/2022]
Abstract
BACKGROUND The standard procedure most frequently used for ovarian tissue cryopreservation (OTC) is slow freezing, while vitrification has been proposed as promising alternative and has built an impressive catalog of success in fertility laboratories regarding cryopreservation of oocytes and embryos. METHODS We developed and evaluated a high-throughput protocol for vitrification of human ovarian tissue suitable for clinical processing. Follicular viability was assessed via calcein staining prior and after cryopreservation analyzing ovarian tissue of a cohort of 30 patients. RESULTS We found no significant differences regarding follicular viability between slow frozen and vitrified cortex tissue samples 24 h after thawing and rapid warming. Follicular viability of thawed and rapid warmed samples was not significantly different in comparison to fresh samples, indicating high proportions of follicular survival rates with both methods. CONCLUSIONS High-throughput vitrification is a promising option in a clinical setting. More research is required to determine the status of other tissue-specific quality indicators potentially influencing on autotransplantation.
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Affiliation(s)
- Andreas Schallmoser
- Department of Gynecological Endocrinology and Reproductive Medicine, University Hospital of Bonn, Venusberg Campus 1, 53127, Bonn, Germany.
| | - Rebekka Einenkel
- Department of Gynecological Endocrinology and Reproductive Medicine, University Hospital of Bonn, Venusberg Campus 1, 53127, Bonn, Germany
| | - Cara Färber
- Department of Gynecological Endocrinology and Reproductive Medicine, University Hospital of Bonn, Venusberg Campus 1, 53127, Bonn, Germany
| | - Norah Emrich
- Department of Gynecological Endocrinology and Reproductive Medicine, University Hospital of Bonn, Venusberg Campus 1, 53127, Bonn, Germany
| | - Julia John
- Department of Gynecological Endocrinology and Reproductive Medicine, University Hospital of Bonn, Venusberg Campus 1, 53127, Bonn, Germany
| | - Nicole Sänger
- Department of Gynecological Endocrinology and Reproductive Medicine, University Hospital of Bonn, Venusberg Campus 1, 53127, Bonn, Germany.
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24
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Leland P, Kumar D, Nimaggada S, Bauer SR, Puri RK, Joshi BH. Characterization of Chimeric Antigen Receptor Modified T Cells Expressing scFv-IL-13Rα2 after Radiolabeling with 89Zirconium Oxine for PET Imaging. RESEARCH SQUARE 2023:rs.3.rs-2242559. [PMID: 36711796 PMCID: PMC9882610 DOI: 10.21203/rs.3.rs-2242559/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Background Chimeric antigen receptor (CAR) T cell therapy is an exciting cell-based cancer immunotherapy. Unfortunately, CAR-T cell therapy is associated with serious toxicities such as cytokine release syndrome (CRS) and neurotoxicity. The mechanism of these serious adverse events (SAEs) and how homing, distribution and retention of CAR-T cells contribute to toxicities is not fully understood. Methods To determine if radiolabelling of CAR-T cells could support positron emission tomography (PET)-based biodistribution studies, we labeled IL-13Rα2 targeting scFv-IL-13Rα2-CAR-T cells (CAR-T cells) with 89 Zirconium-oxine ( 89 Zr-oxine), and characterized and compared their product attributes with non-labeled CAR-T cells. The 89 Zr-oxine labeling conditions were optimized for incubation time, temperature, and use of serum for labeling. In addition, product attributes of radiolabeled CAR-T cells were studied to assess their overall quality including cell viability, proliferation, phenotype markers of T-cell activation and exhaustion, cytolytic activity and release of interferon-γ upon co-culture with IL-13Rα2 expressing glioma cells. Results We observed that radiolabeling of CAR-T cells with 89 Zr-oxine is quick, efficient, and radioactivity is retained in the cells for at least 8 days with minimal loss. Also, viability of radiolabeled CAR-T cells was similar to that of unlabeled cells as determined by TUNEL assay and caspase 3/7 enzyme activity assay. Moreover, there were no significant changes in T cell activation (CD24, CD44, CD69 and IFN-γ) or T cell exhaustion(PD-1, LAG-3 and TIM3) markers expression between radiolabeled and unlabeled CAR-T cells. In chemotaxis assays, migratory capability of radiolabeled CAR-T cells to IL-13Rα2Fc was similar to that of non-labeled cells. Conclusions Importantly, radiolabeling has minimal impact on biological product attributes including potency of CAR-T cells towards IL-13Rα2 positive tumor cells but not IL-13Rα2 negative cells as measured by cytolytic activity and release of IFN-γ. Thus, IL-13Rα2 targeting CAR-T cells radiolabeled with 89 Zr-oxine retain critical product attributes and suggest 89 Zr-oxine radiolabeling of CAR-T cells may facilitate biodistribution and tissue trafficking studies in vivo using PET.
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Affiliation(s)
| | - Dhiraj Kumar
- Johns Hopkins Medicine School of Medicine: Johns Hopkins University School of Medicine
| | | | | | - Raj K Puri
- Center for Biologics Evaluation and Research
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25
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Silva JV, Cordeiro E, Silva B, Paulino LFM, Barroso PA, Barrozo L, de Lima Neto M. Effects of N-acetylcysteine on growth, viability and reactive oxygen species levels in small antral follicles cultured in vitro. ASIAN PACIFIC JOURNAL OF REPRODUCTION 2023. [DOI: 10.4103/2305-0500.365231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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26
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Schauer T, Djurhuus SS, Simonsen C, Brasso K, Christensen JF. The effects of acute exercise and inflammation on immune function in early-stage prostate cancer. Brain Behav Immun Health 2022; 25:100508. [PMID: 36133956 PMCID: PMC9483738 DOI: 10.1016/j.bbih.2022.100508] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 08/02/2022] [Accepted: 09/04/2022] [Indexed: 11/30/2022] Open
Abstract
Background The immune system plays a vital role in cancer development and progression. Strategies mobilizing cytotoxic cells of the immune system to combat immunosuppression in cancer may help to improve the treatment response of patients. To this end, we aimed to characterize the anti-cancer effect of acute exercise, including the involvement of inflammatory signals. Patients and methods Twenty patients with early-stage prostate cancer (PCa) scheduled to undergo prostatectomy performed one bout of acute exercise consisting of a watt-max test and four high-intensity intervals. Natural Killer (NK), NKT-like and T cell phenotype, NK cell cytotoxic activity (NKCA), and NKCA per-cell against cell lines of leukemia (K562) and prostate cancer origin (LNCaP and PC-3) were assessed. Inflammatory markers (TNF-α, IL-6, and CRP) were measured in plasma. Results Exercise increased NK, NKT-like, and CD8 T cell concentration in the circulation. Furthermore, exercise shifted immune cells towards a mature and cytotoxic phenotype e.g., NK cells exhibited higher CD57 as well as lower NKG2A expression. NKT-like and CD8 cells exhibited elevated CD57, TIGIT and Granzyme-B expression. Exercise significantly improved NKCA against K562 (+16% [5%; 27%]; p = 0.002) and LNCaP (+24% [14%; 34%]; p < 0.001) but not PC-3. NKCA per NK cell decreased during exercise and increased 1-h post exercise compared to baseline in K562, LNCap, and PC-3 cell lines. Baseline IL-6 correlated with lymphocyte, monocyte and T cell concentration pre-exercise and inversely correlated with the fold-change of mobilized lymphocytes and CD8 T cells during exercise. Furthermore, baseline IL-6 and TNF-α inversely correlated with NKCA against PC-3 cells during exercise. Conclusions Acute exercise mobilized cytotoxic immune cells and improved NKCA in patients with PCa whereas low-grade inflammation might impair the response. Whether the observed improvements impact long-term outcomes warrant further investigation. Clinical trial number NCT03675529.
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Affiliation(s)
- Tim Schauer
- Centre for Physical Activity Research, Copenhagen University Hospital, Copenhagen, Denmark
| | | | - Casper Simonsen
- Centre for Physical Activity Research, Copenhagen University Hospital, Copenhagen, Denmark
| | - Klaus Brasso
- Copenhagen Prostate Cancer Center, Department of Urology, Copenhagen University Hospital, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Denmark
| | - Jesper Frank Christensen
- Centre for Physical Activity Research, Copenhagen University Hospital, Copenhagen, Denmark
- Institute of Exercise and Biomechanics, University of Southern Denmark, Denmark
- Digestive Disease Center, Bispebjerg Hospital, Copenhagen, Denmark
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27
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Li S, Bern MD, Miao B, Fan C, Xing X, Inoue T, Piersma SJ, Wang T, Colonna M, Kurosaki T, Yokoyama WM. The transcription factor Bach2 negatively regulates murine natural killer cell maturation and function. eLife 2022; 11:e77294. [PMID: 36190189 PMCID: PMC9560152 DOI: 10.7554/elife.77294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 10/02/2022] [Indexed: 11/13/2022] Open
Abstract
BTB domain And CNC Homolog 2 (Bach2) is a transcription repressor that actively participates in T and B lymphocyte development, but it is unknown if Bach2 is also involved in the development of innate immune cells, such as natural killer (NK) cells. Here, we followed the expression of Bach2 during murine NK cell development, finding that it peaked in immature CD27+CD11b+ cells and decreased upon further maturation. Bach2 showed an organ and tissue-specific expression pattern in NK cells. Bach2 expression positively correlated with the expression of transcription factor TCF1 and negatively correlated with genes encoding NK effector molecules and those involved in the cell cycle. Lack of Bach2 expression caused changes in chromatin accessibility of corresponding genes. In the end, Bach2 deficiency resulted in increased proportions of terminally differentiated NK cells with increased production of granzymes and cytokines. NK cell-mediated control of tumor metastasis was also augmented in the absence of Bach2. Therefore, Bach2 is a key checkpoint protein regulating NK terminal maturation.
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Affiliation(s)
- Shasha Li
- Division of Rheumatology, Department of Medicine, Washington University School of MedicineSt LouisUnited States
| | - Michael D Bern
- Division of Rheumatology, Department of Medicine, Washington University School of MedicineSt LouisUnited States
| | - Benpeng Miao
- Department of Genetics, Center for Genome Sciences and Systems Biology, Washington University School of MedicineSt LouisUnited States
| | - Changxu Fan
- Department of Genetics, Center for Genome Sciences and Systems Biology, Washington University School of MedicineSt LouisUnited States
| | - Xiaoyun Xing
- Department of Genetics, Center for Genome Sciences and Systems Biology, Washington University School of MedicineSt LouisUnited States
| | - Takeshi Inoue
- Laboratory of Lymphocyte Differentiation, WPI Immunology Frontier Research Center, Osaka UniversityOsakaJapan
| | - Sytse J Piersma
- Division of Rheumatology, Department of Medicine, Washington University School of MedicineSt LouisUnited States
| | - Ting Wang
- Department of Genetics, Center for Genome Sciences and Systems Biology, Washington University School of MedicineSt LouisUnited States
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of MedicineSt LouisUnited States
| | - Tomohiro Kurosaki
- Laboratory of Lymphocyte Differentiation, WPI Immunology Frontier Research Center, Osaka UniversityOsakaJapan
| | - Wayne M Yokoyama
- Division of Rheumatology, Department of Medicine, Washington University School of MedicineSt LouisUnited States
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28
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BST2, a Novel Inhibitory Receptor, Is Involved in NK Cell Cytotoxicity through Its Cytoplasmic Tail Domain. Int J Mol Sci 2022; 23:ijms231911395. [PMID: 36232695 PMCID: PMC9570199 DOI: 10.3390/ijms231911395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/16/2022] [Accepted: 09/23/2022] [Indexed: 11/17/2022] Open
Abstract
Bone Marrow Stromal Cell Antigen 2 (BST2) is a type II transmembrane protein expressed on various cell types that tethers the release of viruses. Natural killer (NK) cells express low levels of BST2 under normal conditions but exhibit increased expression of BST2 upon activation. In this study, we show for the first time that murine BST2 can control the cytotoxicity of NK cells. The cytoplasmic tail of murine BST2 contains an immunoreceptor tyrosine-based inhibitory motif (ITIM). The absence of BST2 on NK cells can enhance their cytotoxicity against tumor cells compared to wild type NK cells. NK cells isolated from NZW mice, which express ITIM-deficient BST2, also showed higher cytotoxicity than wild type NK cells. In addition, we found that galectin-8 and galectin-9 were ligands of BST2, since blocking galectin-8 or -9 with monoclonal antibodies enhanced the cytotoxicity of NK cells. These results suggested that BST2 might be a novel NK cell inhibitory receptor as it was involved in regulating NK cell cytotoxicity through its interaction with galectins.
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29
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Trebesova H, Olivero G, Marchi M, Grilli M. The Anti-Aggregative Peptide KLVFF Mimics Aβ1-40 in the Modulation of Nicotinic Receptors: Implications for Peptide-Based Therapy. Biomedicines 2022; 10:biomedicines10092231. [PMID: 36140331 PMCID: PMC9496455 DOI: 10.3390/biomedicines10092231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/31/2022] [Accepted: 09/05/2022] [Indexed: 12/02/2022] Open
Abstract
In recent years, the inhibition of beta-amyloid (Aβ) aggregation has emerged as a potential strategy for Alzheimer’s disease. KLVFF, a small peptide corresponding to the aminoacidic sequence 16-20 of Aβ, reduces Aβ fibrillation dose dependently. Therefore, the toxic and functional characterization of its brain activity is fundamental for clarifying its potential therapeutic role. Accordingly, we studied the modulatory role of KLVFF on the cholinergic receptors regulating dopamine and noradrenaline release in rat synaptosomes. Nicotinic receptors on dopaminergic nerve terminals in the nucleus acccumbens are inhibited by KLVFF, which closely resembles full-length Aβ1-40. Moreover, KLVFF entrapped in synaptosomes does not modify the nicotinic receptor’s function, suggesting that external binding to the receptor is required for its activity. The cholinergic agent desformylflustrabromine counteracts the KLVFF effect. Remarkably, muscarinic receptors on dopaminergic terminals and nicotinic receptors regulating noradrenaline release in the hippocampus are completely insensitive to KLVFF. Based on our findings, KLVFF mimics Aβ1-40 as a negative modulator of specific nicotinic receptor subtypes affecting dopamine transmission in the rat brain. Therefore, new pharmacological strategies using the anti-aggregative properties of KLVFF need to be evaluated for potential interference with nicotinic receptor-mediated transmission.
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Agnihotri SN, Ugolini GS, Sullivan MR, Yang Y, De Ganzó A, Lim JW, Konry T. Droplet microfluidics for functional temporal analysis and cell recovery on demand using microvalves: application in immunotherapies for cancer. LAB ON A CHIP 2022; 22:3258-3267. [PMID: 35904070 PMCID: PMC9535857 DOI: 10.1039/d2lc00435f] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Most common methods of cellular analysis employ the top-down approach (investigating proteomics or genomics directly), thereby destroying the cell, which does not allow the possibility of using the same cell to correlate genomics with functional assays. Herein we describe an approach for single-cell tools that serve as a bottom-up approach. Our technology allows functional phenotyping to be conducted by observing the cytotoxicity of cells and then probe the underlying biology. We have developed a droplet microfluidic device capable of trapping droplets in the array and releasing the droplet of interest selectively using microvalves. Each droplet in the array encapsulates natural killer cells (NK cells) and tumour cells for real-time monitoring of burst kinetics and spatial coordination during killing by single NK cells. Finally, we use the microvalve actuation to selectively release droplets with the desired functional phenotype such as for fast and serial killing of target tumour cells by NK cells. From this perspective, our device allows for investigating first interactions and real-time monitoring of kinetics and later cell recovery on demand for single-cell omic analysis such as single-cell RNA sequencing (scRNA), which to date, is primarily based on in-depth analyses of the entire transcriptome of a relatively low number of cells.
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Affiliation(s)
- Sagar N Agnihotri
- Department of Pharmaceutical Sciences, School of Pharmacy, Northeastern University, Boston, MA 02115, USA.
| | - Giovanni Stefano Ugolini
- Department of Pharmaceutical Sciences, School of Pharmacy, Northeastern University, Boston, MA 02115, USA.
| | - Matthew Ryan Sullivan
- Department of Pharmaceutical Sciences, School of Pharmacy, Northeastern University, Boston, MA 02115, USA.
| | - Yichao Yang
- Department of Pharmaceutical Sciences, School of Pharmacy, Northeastern University, Boston, MA 02115, USA.
| | - Agustin De Ganzó
- Department of Pharmaceutical Sciences, School of Pharmacy, Northeastern University, Boston, MA 02115, USA.
| | - Ji Won Lim
- Department of Pharmaceutical Sciences, School of Pharmacy, Northeastern University, Boston, MA 02115, USA.
| | - Tania Konry
- Department of Pharmaceutical Sciences, School of Pharmacy, Northeastern University, Boston, MA 02115, USA.
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Hausig-Punke F, Richter F, Hoernke M, Brendel JC, Traeger A. Tracking the Endosomal Escape: A Closer Look at Calcein and Related Reporters. Macromol Biosci 2022; 22:e2200167. [PMID: 35933579 DOI: 10.1002/mabi.202200167] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 07/19/2022] [Indexed: 11/11/2022]
Abstract
Crossing the cellular membrane and delivering active pharmaceuticals or biologicals into the cytosol of cells is an essential step in the development of nanomedicines. One of the most important intracellular processes regarding the cellular uptake of biologicals is the endolysosomal pathway. Sophisticated nanocarriers have been developed overcoming a major hurdle, the endosomal entrapment, and delivering their cargo to the required site of action. In parallel, in vitro assays have been established analyzing the performance of these nanocarriers. Among them, the release of the membrane-impermeable dye calcein has become a popular and straightforward method. It is accessible for most researchers worldwide, allows for rapid conclusions about the release potential, and enables the study of release mechanisms. This review is intended to provide an overview and guidance for scientists applying the calcein release assay. It comprises a survey of several applications in the study of endosomal escape, considerations of potential pitfalls, challenges and limitations of the assay, and a brief summary of complementary methods. Based on this review, we hope to encourage further research groups to take advantage of the calcein release assay for their own purposes and help to create a database for more efficient cross-correlations between nanocarriers. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Franziska Hausig-Punke
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Friederike Richter
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Maria Hoernke
- Chemistry and Pharmacy, Albert-Ludwigs-Universität Freiburg, Hermann-Herder-Str. 9, 79104, Freiburg i.Br., Germany
| | - Johannes C Brendel
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Anja Traeger
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
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Yang H, Jia H, Zhao Q, Luo KQ. Visualization of natural killer cell-mediated killing of cancer cells at single-cell resolution in live zebrafish. Biosens Bioelectron 2022; 216:114616. [DOI: 10.1016/j.bios.2022.114616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 07/28/2022] [Accepted: 07/31/2022] [Indexed: 11/30/2022]
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Lamonzie E, Vaillant F, Abell E, Charron S, El Hamrani D, Quesson B, Brette F. Assessment of Cardiac Toxicity of Manganese Chloride for Cardiovascular Magnetic Resonance. Front Physiol 2022; 13:952043. [PMID: 35874541 PMCID: PMC9302587 DOI: 10.3389/fphys.2022.952043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 06/13/2022] [Indexed: 11/13/2022] Open
Abstract
MRI is widely used in cardiology to characterize the structure and function of the heart. Currently, gadolinium-based contrast agents are widely used to improve sensitivity and specificity of diagnostic images. Recently, Manganese, a calcium analogue, has emerged as a complementary contrast agent with the potential to reveal remaining viable cells within altered tissue. Imaging applications may be limited by substantial toxicity of manganese. Indeed, cardiac safety of manganese is not yet comprehensively assessed. In this study we investigated the effect of MnCl2 (1–100 µM) on cardiac function. Hemodynamic function was determined ex vivo using an isolated working rat heart preparation. HL-1 cardiac myocytes were used to investigate cell viability (calcein AM) and calcium cycling (Cal-520 a.m.). Rat ventricular cardiomyocytes were dissociated by enzymatic digestion. Action potentials and calcium currents were recorded using the patch clamp technique. MRI experiments were performed at 1.5T on formalin-fixed rat hearts, previously perfused with MnCl2. MnCl2 perfusion from 1 up to 100 µM in isolated working hearts did not alter left ventricular hemodynamic parameters. Contractility and relaxation index were not altered up to 50 µM MnCl2. In HL-1 cardiac myocytes, incubation with increasing concentrations of MnCl2 did not impact cell viability. The amplitude of the calcium transients were significantly reduced at 50 and 100 µM MnCl2. In freshly isolated ventricular myocytes, action potential duration at 20, 50 and 90% of repolarization were not modified up to 10 µM of MnCl2. L-type calcium current amplitude was significantly decreased by 50 and 100 µM of MnCl2. MRI on heart perfused with 25 and 100 µM of MnCl2 showed a dose dependent decrease in the T1 relaxation time. In conclusion, our results show that low concentrations of MnCl2 (up to 25 µM) can be used as a contrast agent in MRI, without significant impact on cardiac hemodynamic or electrophysiology parameters.
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Affiliation(s)
- Elodie Lamonzie
- Univ, Bordeaux, CRCTB, Inserm, Bordeaux, France
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Bordeaux, France
| | - Fanny Vaillant
- Univ, Bordeaux, CRCTB, Inserm, Bordeaux, France
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Bordeaux, France
| | - Emma Abell
- Univ, Bordeaux, CRCTB, Inserm, Bordeaux, France
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Bordeaux, France
| | | | - Dounia El Hamrani
- Univ, Bordeaux, CRCTB, Inserm, Bordeaux, France
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Bordeaux, France
| | - Bruno Quesson
- Univ, Bordeaux, CRCTB, Inserm, Bordeaux, France
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Bordeaux, France
| | - Fabien Brette
- Univ, Bordeaux, CRCTB, Inserm, Bordeaux, France
- IHU Liryc, Electrophysiology and Heart Modeling Institute, Bordeaux, France
- *Correspondence: Fabien Brette,
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Hong Y, Guo H, Wei M, Zhang Y, Fang M, Cheng T, Li Z, Ge S, Yao X, Yuan Q, Xia N. Cell-based reporter assays for measurements of antibody-mediated cellular cytotoxicity and phagocytosis against SARS-CoV-2 spike protein. J Virol Methods 2022; 307:114564. [PMID: 35671888 PMCID: PMC9167684 DOI: 10.1016/j.jviromet.2022.114564] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/17/2022] [Accepted: 06/02/2022] [Indexed: 12/23/2022]
Abstract
The COVID-19 pandemic caused by SARS-CoV-2 infections has led to excess deaths worldwide. Neutralizing antibodies (nAbs) against viral spike protein acquired from natural infections or vaccinations contribute to protection against new- and re-infections. Besides neutralization, antibody-mediated cellular cytotoxicity (ADCC) and phagocytosis (ADCP) are also important for viral clearance. However, due to the lack of convenient methods, the ADCC and ADCP responses elicited by viral infections or vaccinations remain to be explored. Here, we developed cell-based assays using target cells stably expressing SARS-CoV-2 spikes and Jurkat-NFAT-CD16a/CD32a effector cells for ADCC/ADCP measurements of monoclonal antibodies and human convalescent COVID-19 plasmas (HCPs). In control samples (n = 190), the specificity was 99.5% (95%CI: 98.4–100%) and 97.4% (95%CI: 95.1–99.6%) for the ADCC and ADCP assays, respectively. Among 87 COVID-19 HCPs, 83 (sensitivity: 95.4%, 95%CI: 91.0–99.8%) and 81 (sensitivity: 93.1%, 95%CI: 87.8–98.4%) showed detectable ADCC (titer range: 7.4–1721.6) and ADCP activities (titer range: 4–523.2). Notably, both ADCC and ADCP antibody titers positively correlated with the nAb titers in HCPs. In summary, we developed new tools for quantitative ADCC and ADCP analysis against SARS-CoV-2, which may facilitate further evaluations of Fc-mediated effector functions in preventing and treating against SARS-CoV-2.
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Affiliation(s)
- Yuting Hong
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian, P. R. China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Life Sciences, Xiamen University, Xiamen, Fujian, P. R. China
| | - Huilin Guo
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian, P. R. China
| | - Min Wei
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian, P. R. China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Life Sciences, Xiamen University, Xiamen, Fujian, P. R. China
| | - Yali Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian, P. R. China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Life Sciences, Xiamen University, Xiamen, Fujian, P. R. China
| | - Mujin Fang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian, P. R. China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Life Sciences, Xiamen University, Xiamen, Fujian, P. R. China
| | - Tong Cheng
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian, P. R. China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Life Sciences, Xiamen University, Xiamen, Fujian, P. R. China
| | - Zhiyong Li
- The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, P.R. China
| | - Shengxiang Ge
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian, P. R. China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Life Sciences, Xiamen University, Xiamen, Fujian, P. R. China
| | - Xiangyang Yao
- The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, P.R. China.
| | - Quan Yuan
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian, P. R. China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Life Sciences, Xiamen University, Xiamen, Fujian, P. R. China.
| | - Ningshao Xia
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian, P. R. China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Life Sciences, Xiamen University, Xiamen, Fujian, P. R. China
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Overexpression of multiple epidermal growth factor like domains 11 rescues anoikis survival through tumor cells-platelet interaction in triple negative breast Cancer cells. Life Sci 2022; 299:120541. [DOI: 10.1016/j.lfs.2022.120541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 03/27/2022] [Accepted: 04/04/2022] [Indexed: 11/15/2022]
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Bernard PL, Delconte R, Pastor S, Laletin V, Costa Da Silva C, Goubard A, Josselin E, Castellano R, Krug A, Vernerey J, Devillier R, Olive D, Verhoeyen E, Vivier E, Huntington ND, Nunes J, Guittard G. Targeting CISH enhances natural cytotoxicity receptor signaling and reduces NK cell exhaustion to improve solid tumor immunity. J Immunother Cancer 2022; 10:jitc-2021-004244. [PMID: 35589278 PMCID: PMC9121483 DOI: 10.1136/jitc-2021-004244] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/06/2022] [Indexed: 12/11/2022] Open
Abstract
Background The success and limitations of current immunotherapies have pushed research toward the development of alternative approaches and the possibility to manipulate other cytotoxic immune cells such as natural killer (NK) cells. Here, we targeted an intracellular inhibiting protein ‘cytokine inducible SH2-containing protein’ (CISH) in NK cells to evaluate the impact on their functions and antitumor properties. Methods To further understand CISH functions in NK cells, we developed a conditional Cish-deficient mouse model in NK cells (Cishfl/flNcr1Ki/+). NK cells cytokine expression, signaling and cytotoxicity has been evaluated in vitro. Using intravenous injection of B16F10 melanoma cell line and EO711 triple negative breast cancer cell line, metastasis evaluation was performed. Then, orthotopic implantation of breast tumors was performed and tumor growth was followed using bioluminescence. Infiltration and phenotype of NK cells in the tumor was evaluated. Finally, we targeted CISH in human NK-92 or primary NK cells, using a technology combining the CRISPR(i)-dCas9 tool with a new lentiviral pseudotype. We then tested human NK cells functions. Results In Cishfl/flNcr1Ki/+ mice, we detected no developmental or homeostatic difference in NK cells. Global gene expression of Cishfl/flNcr1Ki/+ NK cells compared with Cish+/+Ncr1Ki/+ NK cells revealed upregulation of pathways and genes associated with NK cell cycling and activation. We show that CISH does not only regulate interleukin-15 (IL-15) signaling pathways but also natural cytotoxicity receptors (NCR) pathways, triggering CISH protein expression. Primed Cishfl/flNcr1Ki/+ NK cells display increased activation upon NCR stimulation. Cishfl/flNcr1Ki/+ NK cells display lower activation thresholds and Cishfl/flNcr1Ki/+ mice are more resistant to tumor metastasis and to primary breast cancer growth. CISH deletion favors NK cell accumulation to the primary tumor, optimizes NK cell killing properties and decreases TIGIT immune checkpoint receptor expression, limiting NK cell exhaustion. Finally, using CRISPRi, we then targeted CISH in human NK-92 or primary NK cells. In human NK cells, CISH deletion also favors NCR signaling and antitumor functions. Conclusion This study represents a crucial step in the mechanistic understanding and safety of Cish targeting to unleash NK cell antitumor function in solid tumors. Our results validate CISH as an emerging therapeutic target to enhance NK cell immunotherapy.
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Affiliation(s)
- Pierre-Louis Bernard
- Immunity and Cancer Team, Onco-Hemato Immuno-Onco Department, OHIO, Institut Paoli-Calmettes, Inserm, CNRS, Cancer Research Centre, CRCM, Marseille, France
| | - Rebecca Delconte
- Immunology Program, Sloan-Kettering Institute, New York City, New York, USA
| | - Sonia Pastor
- Immunity and Cancer Team, Onco-Hemato Immuno-Onco Department, OHIO, Institut Paoli-Calmettes, Inserm, CNRS, Cancer Research Centre, CRCM, Marseille, France
| | - Vladimir Laletin
- Immunity and Cancer Team, Onco-Hemato Immuno-Onco Department, OHIO, Institut Paoli-Calmettes, Inserm, CNRS, Cancer Research Centre, CRCM, Marseille, France
| | - Cathy Costa Da Silva
- Immunity and Cancer Team, Onco-Hemato Immuno-Onco Department, OHIO, Institut Paoli-Calmettes, Inserm, CNRS, Cancer Research Centre, CRCM, Marseille, France
| | - Armelle Goubard
- Immunity and Cancer Team, Onco-Hemato Immuno-Onco Department, OHIO, Institut Paoli-Calmettes, Inserm, CNRS, Cancer Research Centre, CRCM, Marseille, France
| | - Emmanuelle Josselin
- Immunity and Cancer Team, Onco-Hemato Immuno-Onco Department, OHIO, Institut Paoli-Calmettes, Inserm, CNRS, Cancer Research Centre, CRCM, Marseille, France
| | - Rémy Castellano
- Immunity and Cancer Team, Onco-Hemato Immuno-Onco Department, OHIO, Institut Paoli-Calmettes, Inserm, CNRS, Cancer Research Centre, CRCM, Marseille, France
| | - Adrien Krug
- INSERM, Unité 1111, Université Claude Bernard Lyon 1, Centre National de la Recherche Scientifique, Unité Mixte de Recherche (UMR) 5308, CIRI-International Center for Infectiology Research, Nice, France
| | - Julien Vernerey
- Immunity and Cancer Team, Onco-Hemato Immuno-Onco Department, OHIO, Institut Paoli-Calmettes, Inserm, CNRS, Cancer Research Centre, CRCM, Marseille, France
| | - Raynier Devillier
- Immunity and Cancer Team, Onco-Hemato Immuno-Onco Department, OHIO, Institut Paoli-Calmettes, Inserm, CNRS, Cancer Research Centre, CRCM, Marseille, France
| | - Daniel Olive
- Immunity and Cancer Team, Onco-Hemato Immuno-Onco Department, OHIO, Institut Paoli-Calmettes, Inserm, CNRS, Cancer Research Centre, CRCM, Marseille, France
| | - Els Verhoeyen
- INSERM, Unité 1111, Université Claude Bernard Lyon 1, Centre National de la Recherche Scientifique, Unité Mixte de Recherche (UMR) 5308, CIRI-International Center for Infectiology Research, Nice, France
| | - Eric Vivier
- Innate Pharma Research Labs, Innate Pharma; Centre d'Immunologie de Marseille-Luminy, CIML; Service d'Immunologie, Marseille Immunopole, Hôpital de la Timone, Assistance Publique-Hôpitaux de Marseille, Aix Marseille Université, Inserm, CNRS, Marseille, France
| | - Nicholas D Huntington
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Jacques Nunes
- Immunity and Cancer Team, Onco-Hemato Immuno-Onco Department, OHIO, Institut Paoli-Calmettes, Inserm, CNRS, Cancer Research Centre, CRCM, Marseille, France
| | - Geoffrey Guittard
- Immunity and Cancer Team, Onco-Hemato Immuno-Onco Department, OHIO, Institut Paoli-Calmettes, Inserm, CNRS, Cancer Research Centre, CRCM, Marseille, France
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Zhuang X, Long EO. NK Cells Equipped With a Chimeric Antigen Receptor That Overcomes Inhibition by HLA Class I for Adoptive Transfer of CAR-NK Cells. Front Immunol 2022; 13:840844. [PMID: 35585985 PMCID: PMC9108249 DOI: 10.3389/fimmu.2022.840844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 04/01/2022] [Indexed: 12/25/2022] Open
Abstract
Dominant inhibitory receptors for HLA class I (HLA-I) endow NK cells with high intrinsic responsiveness, a process termed licensing or education, but hinder their ability to kill HLA-I+ tumor cells. Cancer immunotherapy with adoptive transfer of NK cells must overcome inhibitory signals by such receptors to promote elimination of HLA-I+ tumor cells. As proof of concept, we show here that a chimeric antigen receptor (CAR) can be engineered to overcome inhibition by receptors for HLA-I and to promote lysis of HLA-I+ tumor cells by CAR-NK cells. The design of this NK-tailored CAR (NK-CAR) relied on the potent NK cell activation induced by the synergistic combination of NK receptors CD28H (CD28 homolog, TMIGD2) and 2B4 (CD244, SLAMF4). An NK-CAR consisting of the single-chain fragment variable (scFv) of a CD19 antibody, the CD28H transmembrane domain, and the fusion of CD28H, 2B4, and TCRζ signaling domains was compared to a third-generation T-cell CAR with a CD28-41BB-TCRζ signaling domain. The NK-CAR delivered stronger activation signals to NK cells and induced more robust tumor cell lysis. Furthermore, such CAR-NK cells could overcome inhibition by HLA-E or HLA-C expressed on tumor cells. Therefore, engineering of CAR-NK cells that could override inhibition by HLA-I in patients undergoing cancer immunotherapy is feasible. This approach offers an attractive alternative to more complex strategies, such as genetic editing of inhibitory receptors in CAR-NK cells or treatment of patients with a combination of CAR-NK cells and checkpoint blockade with antibodies to inhibitory receptors. A significant benefit of inhibition-resistant NK-CARs is that NK cell inhibition would be overcome only during contact with targeted tumor cells and that HLA-I on healthy cells would continue to maintain NK cell responsiveness through licensing.
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Affiliation(s)
| | - Eric O. Long
- *Correspondence: Eric O. Long, ; Xiaoxuan Zhuang,
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Dehghan R, Beig Parikhani A, Zeinali S, Shokrgozar M, Amanzadeh A, Ajdary S, Ahangari Cohan R, Talebkhan Y, Behdani M. Efficacy and antitumor activity of a mutant type of interleukin 2. Sci Rep 2022; 12:5376. [PMID: 35354847 PMCID: PMC8968711 DOI: 10.1038/s41598-022-09278-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 03/21/2022] [Indexed: 11/09/2022] Open
Abstract
AbstractInterleukin-2 (IL-2) is an important cytokine in survival, expansion, function of CD8+ T cells and natural killer cells in immunotherapy of melanoma and renal cell carcinomas. Its severe toxicity following binding to its high affinity IL-2 receptor alpha (IL-2Rα) has restricted its application in cancer patients. In the present study, we investigated the antitumor efficacy and cytotoxicity of a mutated human IL-2 previously designed by selective amino acid substitutions, and its reduced affinity towards high-affinity IL-2Rα (CD25) was approved compared to the wild type IL-2 (wtIL-2). Furthermore, their ability to induce PBMC cell proliferation, and interferon-gamma secretion was compared. The mutant IL-2 also represented higher antitumor activity and more efficient cytotoxicity than wild type hIL-2. The developed mutant IL-2 can be an alternative tool in IL-2 associated immunotherapy of various cancers.
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Hammel JH, Zatorski JM, Cook SR, Pompano RR, Munson JM. Engineering in vitro immune-competent tissue models for testing and evaluation of therapeutics. Adv Drug Deliv Rev 2022; 182:114111. [PMID: 35031388 PMCID: PMC8908413 DOI: 10.1016/j.addr.2022.114111] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 11/16/2021] [Accepted: 01/07/2022] [Indexed: 12/13/2022]
Abstract
Advances in 3D cell culture, microscale fluidic control, and cellular analysis have enabled the development of more physiologically-relevant engineered models of human organs with precise control of the cellular microenvironment. Engineered models have been used successfully to answer fundamental biological questions and to screen therapeutics, but these often neglect key elements of the immune system. There are immune elements in every tissue that contribute to healthy and diseased states. Including immune function will be essential for effective preclinical testing of therapeutics for inflammatory and immune-modulated diseases. In this review, we first discuss the key components to consider in designing engineered immune-competent models in terms of physical, chemical, and biological cues. Next, we review recent applications of models of immunity for screening therapeutics for cancer, preclinical evaluation of engineered T cells, modeling autoimmunity, and screening vaccine efficacy. Future work is needed to further recapitulate immune responses in engineered models for the most informative therapeutic screening and evaluation.
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Affiliation(s)
- Jennifer H. Hammel
- Fralin Biomedical Research Institute and Department of Biomedical Engineering and Mechanics, Virginia Tech, Roanoke, Virginia 24016, USA
| | - Jonathan M. Zatorski
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, USA
| | - Sophie R. Cook
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, USA
| | - Rebecca R. Pompano
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, USA,Department of Biomedical Engineering, University of Virginia; Charlottesville, Virginia 22904, USA,Carter Immunology Center and UVA Cancer Center, University of Virginia School of Medicine, Charlottesville, Virginia 22903
| | - Jennifer M. Munson
- Fralin Biomedical Research Institute and Department of Biomedical Engineering and Mechanics, Virginia Tech, Roanoke, Virginia 24016, USA
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Zheng D, Wang X, Zhang Z, Li E, Yeung C, Borkar R, Qin G, Wu Y, Xu RH. Engineering of human mesenchymal stem cells resistant to multiple natural killer subtypes. Int J Biol Sci 2022; 18:426-440. [PMID: 34975342 PMCID: PMC8692142 DOI: 10.7150/ijbs.64640] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 10/25/2021] [Indexed: 12/04/2022] Open
Abstract
Mesenchymal stem cells (MSCs) as a therapeutic promise are often quickly cleared by innate immune cells of the host including natural killer (NK) cells. Efforts have been made to generate immune-escaping human embryonic stem cells (hESCs) where T cell immunity is evaded by defecting β-2-microglobulin (B2M), a common unit for human leukocyte antigen (HLA) class I, and NK cells are inhibited via ectopic expression of HLA-E or -G. However, NK subtypes vary among recipients and even at different pathologic statuses. It is necessary to dissect and optimize the efficacy of the immune-escaping cells against NK subtypes. Here, we first generated B2M knockout hESCs and differentiated them to MSCs (EMSCs) and found that NK resistance occurred with B2M-/- EMSCs expressing HLA-E and -G only when they were transduced via an inducible lentiviral system in a dose-dependent manner but not when they were inserted into a safe harbor. HLA-E and -G expressed at high levels together in transduced EMSCs inhibited three major NK subtypes, including NKG2A+/LILRB1+, NKG2A+/LILRB1-, and NKG2A-/LILRB1+, which was further potentiated by IFN-γ priming. Thus, this study engineers MSCs with resistance to multiple NK subtypes and underscores that dosage matters when a transgene is used to confer a novel effect to host cells, especially for therapeutic cells to evade immune rejection.
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Affiliation(s)
- Dejin Zheng
- Center of Reproduction, Development & Aging, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau, China.,Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, Taipa, Macau, China
| | - Xiaoyan Wang
- Center of Reproduction, Development & Aging, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau, China.,Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, Taipa, Macau, China
| | - Zhenwu Zhang
- Center of Reproduction, Development & Aging, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau, China.,Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, Taipa, Macau, China.,School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Enqin Li
- Center of Reproduction, Development & Aging, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau, China.,Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, Taipa, Macau, China
| | - Cheungkwan Yeung
- Center of Reproduction, Development & Aging, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau, China.,Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, Taipa, Macau, China
| | - Roma Borkar
- Center of Reproduction, Development & Aging, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau, China.,Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, Taipa, Macau, China
| | - Guihui Qin
- Center of Reproduction, Development & Aging, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau, China.,Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, Taipa, Macau, China
| | - Yaojiong Wu
- The Shenzhen Key Laboratory of Health Sciences and Technology, International Graduate School at Shenzhen, Tsinghua University, Shenzhen, China
| | - Ren-He Xu
- Center of Reproduction, Development & Aging, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau, China.,Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, Taipa, Macau, China
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Croom-Perez TJ, Robles-Carillo LD, Oyer JL, Dieffenthaller TA, Hasan MF, Copik AJ. Kinetic, imaging based assay to measure NK cell cytotoxicity against adherent cells. Methods Cell Biol 2022. [PMID: 37516529 DOI: 10.1016/bs.mcb.2022.07.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Natural Killer cells (NK cells) are a key component of the innate immune system and are key effectors of immunosurveillance. NK cells not only have the inherent ability to directly kill malignant, compromised, or virally infected cells, but also recruit and coordinate responses by other immune cells to prime the adaptive immune response. Given this potent anti-tumor response and good safety profile, adoptive NK cell therapy is an emerging cancer treatment modality. Direct killing of tumor cells is major mode of action for NK cell anti-tumor activity and measuring changes in NK cell cytotoxic response in vitro is a critical step in pre-clinical evaluation of novel NK cellular products. Here, we provide a detailed protocol for a live-cell imaging assay for testing NK cell cytotoxicity against a broad range of adherent and 3D in vitro tumor models. Compared to other methods for measuring in vitro cytotoxicity, this method offers real-time dynamic tracking of and provides a multiparameter readout for more robust understanding of NK cell tumor killing.
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Richert E, Papenkort J, von der Burchard C, Klettner A, Arnold P, Lucius R, Brinkmann R, Framme C, Roider J, Tode J. Selective retina therapy and thermal stimulation of the retina: different regenerative properties - implications for AMD therapy. BMC Ophthalmol 2021; 21:412. [PMID: 34847865 PMCID: PMC8630886 DOI: 10.1186/s12886-021-02188-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 11/22/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Selective Retina Therapy (SRT), a photodisruptive micropulsed laser modality that selectively destroys RPE cells followed by regeneration, and Thermal Stimulation of the Retina (TSR), a stimulative photothermal continuous wave laser modality that leads to an instant sublethal temperature increase in RPE cells, have shown therapeutic effects on Age-related Macular Degeneration (AMD) in mice. We investigate the differences between both laser modalities concerning RPE regeneration. METHODS For PCR array, 6 eyes of murine AMD models, apolipoprotein E and nuclear factor erythroid-derived 2- like 2 knock out mice respectively, were treated by neuroretina-sparing TSR or SRT. Untreated litter mates were controls. Eyes were enucleated either 1 or 7 days after laser treatment. For morphological analysis, porcine RPE/choroid organ cultures underwent the same laser treatment and were examined by calcein vitality staining 1 h and 1, 3 or 5 days after irradiation. RESULTS TSR did not induce the expression of cell-mediators connected to cell death. SRT induced necrosis associated cytokines as well as inflammation 1 but not 7 days after treatment. Morphologically, 1 h after TSR, there was no cell damage. One and 3 days after TSR, dense chromatin and cell destruction of single cells was seen. Five days after TSR, there were signs of migration and proliferation. In contrast, 1 h after SRT a defined necrotic area within the laser spot was seen. This lesion was closed over days by migration and proliferation of adjacent cells. CONCLUSIONS SRT induces RPE cell death, followed by regeneration within a few days. It is accompanied by necrosis induced inflammation, RPE proliferation and migration. TSR does not induce immediate RPE cell death; however, migration and mitosis can be seen a few days after laser irradiation, not accompanied by necrosis-associated inflammation. Both might be a therapeutic option for the treatment of AMD.
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Affiliation(s)
- Elisabeth Richert
- Department of Ophthalmology, Christian-Albrechts-University of Kiel, University Medical Center, Kiel, Germany
| | - Julia Papenkort
- Department of Ophthalmology, Christian-Albrechts-University of Kiel, University Medical Center, Kiel, Germany
| | - Claus von der Burchard
- Department of Ophthalmology, Christian-Albrechts-University of Kiel, University Medical Center, Kiel, Germany
| | - Alexa Klettner
- Department of Ophthalmology, Christian-Albrechts-University of Kiel, University Medical Center, Kiel, Germany
| | - Philipp Arnold
- Friedrich-Alexander-University Erlangen-Nürnberg, Nürnberg, Germany
| | - Ralph Lucius
- Christian-Albrechts-University of Kiel, Institute of Anatomy, Kiel, Germany
| | - Ralf Brinkmann
- Medical Laser Center Lübeck, Lübeck, Germany.,Institute for Biomedical Optics, University of Lübeck, Lübeck, Germany
| | - Carsten Framme
- Department of Ophthalmology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Johann Roider
- Department of Ophthalmology, Christian-Albrechts-University of Kiel, University Medical Center, Kiel, Germany
| | - Jan Tode
- Department of Ophthalmology, Christian-Albrechts-University of Kiel, University Medical Center, Kiel, Germany. .,Department of Ophthalmology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany.
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Binder HM, Maeding N, Wolf M, Cronemberger Andrade A, Vari B, Krisch L, Gomes FG, Blöchl C, Muigg K, Poupardin R, Raninger AM, Heuser T, Obermayer A, Ebner-Peking P, Pleyer L, Greil R, Huber CG, Schallmoser K, Strunk D. Scalable Enrichment of Immunomodulatory Human Acute Myeloid Leukemia Cell Line-Derived Extracellular Vesicles. Cells 2021; 10:3321. [PMID: 34943829 PMCID: PMC8699161 DOI: 10.3390/cells10123321] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 11/17/2021] [Accepted: 11/24/2021] [Indexed: 12/15/2022] Open
Abstract
Acute myeloid leukemia (AML) cells can secrete trophic factors, including extracellular vesicles (EVs), instructing the stromal leukemic niche. Here, we introduce a scalable workflow for purification of immunomodulatory AML-EVs to compare their phenotype and function to the parental AML cells and their secreted soluble factors. AML cell lines HL-60, KG-1, OCI-AML3, and MOLM-14 released EVs with a peak diameter of approximately 80 nm in serum-free particle-reduced medium. We enriched EVs >100x using tangential flow filtration (TFF) and separated AML-derived soluble factors and cells in parallel. EVs were characterized by electron microscopy, immunoblotting, and flow cytometry, confirming the double-membrane morphology, purity and identity. AML-EVs showed significant enrichment of immune response and leukemia-related pathways in tandem mass-tag proteomics and a significant dose-dependent inhibition of T cell proliferation, which was not observed with AML cells or their soluble factors. Furthermore, AML-EVs dose-dependently reduced NK cell lysis of third-party K-562 leukemia targets. This emphasizes the peculiar role of AML-EVs in leukemia immune escape and indicates novel EV-based targets for therapeutic interventions.
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Affiliation(s)
- Heide-Marie Binder
- Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Cell Therapy Institute, Paracelsus Medical University (PMU), 5020 Salzburg, Austria; (H.-M.B.); (N.M.); (M.W.); (A.C.A.); (B.V.); (L.K.); (F.G.G.); (K.M.); (R.P.); (A.M.R.); (P.E.-P.)
| | - Nicole Maeding
- Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Cell Therapy Institute, Paracelsus Medical University (PMU), 5020 Salzburg, Austria; (H.-M.B.); (N.M.); (M.W.); (A.C.A.); (B.V.); (L.K.); (F.G.G.); (K.M.); (R.P.); (A.M.R.); (P.E.-P.)
| | - Martin Wolf
- Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Cell Therapy Institute, Paracelsus Medical University (PMU), 5020 Salzburg, Austria; (H.-M.B.); (N.M.); (M.W.); (A.C.A.); (B.V.); (L.K.); (F.G.G.); (K.M.); (R.P.); (A.M.R.); (P.E.-P.)
| | - André Cronemberger Andrade
- Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Cell Therapy Institute, Paracelsus Medical University (PMU), 5020 Salzburg, Austria; (H.-M.B.); (N.M.); (M.W.); (A.C.A.); (B.V.); (L.K.); (F.G.G.); (K.M.); (R.P.); (A.M.R.); (P.E.-P.)
| | - Balazs Vari
- Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Cell Therapy Institute, Paracelsus Medical University (PMU), 5020 Salzburg, Austria; (H.-M.B.); (N.M.); (M.W.); (A.C.A.); (B.V.); (L.K.); (F.G.G.); (K.M.); (R.P.); (A.M.R.); (P.E.-P.)
| | - Linda Krisch
- Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Cell Therapy Institute, Paracelsus Medical University (PMU), 5020 Salzburg, Austria; (H.-M.B.); (N.M.); (M.W.); (A.C.A.); (B.V.); (L.K.); (F.G.G.); (K.M.); (R.P.); (A.M.R.); (P.E.-P.)
- Department of Transfusion Medicine and SCI-TReCS, Paracelsus Medical University (PMU), 5020 Salzburg, Austria;
| | - Fausto Gueths Gomes
- Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Cell Therapy Institute, Paracelsus Medical University (PMU), 5020 Salzburg, Austria; (H.-M.B.); (N.M.); (M.W.); (A.C.A.); (B.V.); (L.K.); (F.G.G.); (K.M.); (R.P.); (A.M.R.); (P.E.-P.)
| | - Constantin Blöchl
- Department of Biosciences, Paris Lodron University, 5020 Salzburg, Austria; (C.B.); (A.O.); (C.G.H.)
| | - Katharina Muigg
- Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Cell Therapy Institute, Paracelsus Medical University (PMU), 5020 Salzburg, Austria; (H.-M.B.); (N.M.); (M.W.); (A.C.A.); (B.V.); (L.K.); (F.G.G.); (K.M.); (R.P.); (A.M.R.); (P.E.-P.)
| | - Rodolphe Poupardin
- Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Cell Therapy Institute, Paracelsus Medical University (PMU), 5020 Salzburg, Austria; (H.-M.B.); (N.M.); (M.W.); (A.C.A.); (B.V.); (L.K.); (F.G.G.); (K.M.); (R.P.); (A.M.R.); (P.E.-P.)
| | - Anna M. Raninger
- Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Cell Therapy Institute, Paracelsus Medical University (PMU), 5020 Salzburg, Austria; (H.-M.B.); (N.M.); (M.W.); (A.C.A.); (B.V.); (L.K.); (F.G.G.); (K.M.); (R.P.); (A.M.R.); (P.E.-P.)
| | - Thomas Heuser
- Vienna BioCenter Core Facilities GmbH, 1030 Vienna, Austria;
| | - Astrid Obermayer
- Department of Biosciences, Paris Lodron University, 5020 Salzburg, Austria; (C.B.); (A.O.); (C.G.H.)
| | - Patricia Ebner-Peking
- Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Cell Therapy Institute, Paracelsus Medical University (PMU), 5020 Salzburg, Austria; (H.-M.B.); (N.M.); (M.W.); (A.C.A.); (B.V.); (L.K.); (F.G.G.); (K.M.); (R.P.); (A.M.R.); (P.E.-P.)
| | - Lisa Pleyer
- 3rd Medical Department with Hematology, Medical Oncology, Rheumatology and Infectiology, Paracelsus Medical University, 5020 Salzburg, Austria; (L.P.); (R.G.)
- Salzburg Cancer Research Institute (SCRI) Center for Clinical Cancer and Immunology Trials (CCCIT) and Cancer Cluster Salzburg (CCS), 5020 Salzburg, Austria
- Austrian Group for Medical Tumor Therapy (AGMT) Study Group, 1180 Vienna, Austria
| | - Richard Greil
- 3rd Medical Department with Hematology, Medical Oncology, Rheumatology and Infectiology, Paracelsus Medical University, 5020 Salzburg, Austria; (L.P.); (R.G.)
- Salzburg Cancer Research Institute (SCRI) Center for Clinical Cancer and Immunology Trials (CCCIT) and Cancer Cluster Salzburg (CCS), 5020 Salzburg, Austria
- Austrian Group for Medical Tumor Therapy (AGMT) Study Group, 1180 Vienna, Austria
| | - Christian G. Huber
- Department of Biosciences, Paris Lodron University, 5020 Salzburg, Austria; (C.B.); (A.O.); (C.G.H.)
| | - Katharina Schallmoser
- Department of Transfusion Medicine and SCI-TReCS, Paracelsus Medical University (PMU), 5020 Salzburg, Austria;
| | - Dirk Strunk
- Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Cell Therapy Institute, Paracelsus Medical University (PMU), 5020 Salzburg, Austria; (H.-M.B.); (N.M.); (M.W.); (A.C.A.); (B.V.); (L.K.); (F.G.G.); (K.M.); (R.P.); (A.M.R.); (P.E.-P.)
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Breast cancer dormancy is associated with a 4NG1 state and not senescence. NPJ Breast Cancer 2021; 7:140. [PMID: 34707097 PMCID: PMC8551199 DOI: 10.1038/s41523-021-00347-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 09/21/2021] [Indexed: 12/22/2022] Open
Abstract
Reactivation of dormant cancer cells can lead to cancer relapse, metastasis, and patient death. Dormancy is a nonproliferative state and is linked to late relapse and death. No targeted therapy is currently available to eliminate dormant cells, highlighting the need for a deeper understanding and reliable models. Here, we thoroughly characterize the dormant D2.OR and ZR-75-1, and proliferative D2A1 breast cancer cell line models in vivo and/or in vitro, and assess if there is overlap between a dormant and a senescent phenotype. We show that D2.OR but not D2A1 cells become dormant in the liver of an immunocompetent model. In vitro, we show that D2.OR and ZR-75-1 cells in response to a 3D environment or serum-free conditions are growth-arrested in G1, of which a subpopulation resides in a 4NG1 state. The dormancy state is reversible and not associated with a senescence phenotype. This will aid future research on breast cancer dormancy.
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1,5-Benzodiazepin-2(3H)-ones: In Vitro Evaluation as Antiparkinsonian Agents. Antioxidants (Basel) 2021; 10:antiox10101584. [PMID: 34679721 PMCID: PMC8533176 DOI: 10.3390/antiox10101584] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 10/03/2021] [Accepted: 10/05/2021] [Indexed: 01/08/2023] Open
Abstract
A new series of twenty-three 1,5-benzodiazepin-2(3H)-ones were synthesized and evaluated in the 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid (ABTS), ferric reducing antioxidant power (FRAP), and 2,2-diphenyl-1-picrylhydrazyl (DPPH) assays as a new chemotype with antioxidant and good drug-like properties. All of the derivatives showed low cytotoxicity in comparison to curcumin against the human neuroblastoma SH-SY5Y and the human hepatoma HepG2 cell lines. Experimental solubility in bio-relevant media showed a good relationship with melting points in this series. Five compounds with the best antioxidant properties showed neuroprotectant activity against H2O2-induced oxidative stress in the SH-SY5Y cell line. From them, derivatives 4-phenyl-1H-1,5-benzodiazepin-2(3H)-one (18) and 4-(3,4,5-trimethoxyphenyl)-1H-1,5-benzodiazepin-2(3H)-one (20) yielded good neuroprotection activity in the same neuronal cell line under 6-OHD and MPP+ insults as in vitro models of mitochondrial dysfunction and oxidative stress in Parkinson’s disease (PD). Both compounds also demonstrated a significant reduction of intracellular Reactive Oxygen Species (ROS) and superoxide levels, in parallel with a good improvement of the Mitochondrial Membrane Potential (ΔΨm). Compared with curcumin, compound 18 better reduced lipid peroxidation levels, malondialdehyde (MDA), in SH-SY5Y cells under oxidative stress pressure and recovered intracellular glutathione synthetase (GSH) levels. Apoptosis and caspase-3 levels of SH-SY5Y under H2O2 pressure were also reduced after treatment with 18. Neuroprotection in neuron-like differentiated SH-SY5Y cells was also achieved with 18. In summary, this family of 1,5-benzodiazepin-2-ones with an interesting antioxidant and drug-like profile, with low cytotoxic and good neuroprotectant activity, constitutes a new promising chemical class with high potential for the development of new therapeutic agents against PD.
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Mkorombindo T, Tran-Nguyen TK, Yuan K, Zhang Y, Xue J, Criner GJ, Kim YI, Pilewski JM, Gaggar A, Cho MH, Sciurba FC, Duncan SR. HLA-C and KIR permutations influence chronic obstructive pulmonary disease risk. JCI Insight 2021; 6:e150187. [PMID: 34464355 PMCID: PMC8525585 DOI: 10.1172/jci.insight.150187] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 08/26/2021] [Indexed: 01/04/2023] Open
Abstract
A role for hereditary influences in the susceptibility for chronic obstructive pulmonary disease (COPD) is widely recognized. Cytotoxic lymphocytes are implicated in COPD pathogenesis, and functions of these leukocytes are modulated by interactions between their killer cell Ig-like receptors (KIR) and human leukocyte antigen–Class I (HLA–Class I) molecules on target cells. We hypothesized HLA–Class I and KIR inheritance affect risks for COPD. HLA–Class I alleles and KIR genotypes were defined by candidate gene analyses in multiple cohorts of patients with COPD (total n = 392) and control smokers with normal spirometry (total n = 342). Compared with controls, patients with COPD had overrepresentations of HLA-C*07 and activating KIR2DS1, with underrepresentations of HLA-C*12. Particular HLA-KIR permutations were synergistic; e.g., the presence of HLA-C*07 + KIR2DS1 + HLA-C12null versus HLAC*07null + KIR2DS1null + HLA-C12 was associated with COPD, especially among HLA-C1 allotype homozygotes. Cytotoxicity of COPD lymphocytes was more enhanced by KIR stimulation than those of controls and was correlated with lung function. These data show HLA-C and KIR polymorphisms strongly influence COPD susceptibility and highlight the importance of lymphocyte-mediated cytotoxicity in COPD pathogenesis. Findings here also indicate that HLA-KIR typing could stratify at-risk patients and raise possibilities that HLA-KIR axis modulation may have therapeutic potential.
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Affiliation(s)
- Takudzwa Mkorombindo
- Division of Pulmonary, Allergy & Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Thi K Tran-Nguyen
- Division of Pulmonary, Allergy & Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Kaiyu Yuan
- Division of Pulmonary, Allergy & Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Yingze Zhang
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Jianmin Xue
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Gerard J Criner
- Department of Thoracic Medicine and Surgery, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Young-Il Kim
- Division of Pulmonary, Allergy & Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA.,Division of Preventive Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Joseph M Pilewski
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Amit Gaggar
- Division of Pulmonary, Allergy & Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Michael H Cho
- Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Frank C Sciurba
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Steven R Duncan
- Division of Pulmonary, Allergy & Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
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DNA Dyes-Highly Sensitive Reporters of Cell Quantification: Comparison with Other Cell Quantification Methods. Molecules 2021; 26:molecules26185515. [PMID: 34576986 PMCID: PMC8465179 DOI: 10.3390/molecules26185515] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/07/2021] [Accepted: 09/08/2021] [Indexed: 12/25/2022] Open
Abstract
Cell quantification is widely used both in basic and applied research. A typical example of its use is drug discovery research. Presently, plenty of methods for cell quantification are available. In this review, the basic techniques used for cell quantification, with a special emphasis on techniques based on fluorescent DNA dyes, are described. The main aim of this review is to guide readers through the possibilities of cell quantification with various methods and to show the strengths and weaknesses of these methods, especially with respect to their sensitivity, accuracy, and length. As these methods are frequently accompanied by an analysis of cell proliferation and cell viability, some of these approaches are also described.
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48
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Gonzalez VD, Huang YW, Delgado-Gonzalez A, Chen SY, Donoso K, Sachs K, Gentles AJ, Allard GM, Kolahi KS, Howitt BE, Porpiglia E, Fantl WJ. High-grade serous ovarian tumor cells modulate NK cell function to create an immune-tolerant microenvironment. Cell Rep 2021; 36:109632. [PMID: 34469729 PMCID: PMC8546503 DOI: 10.1016/j.celrep.2021.109632] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 05/12/2021] [Accepted: 08/06/2021] [Indexed: 12/30/2022] Open
Abstract
Tubo-ovarian high-grade serous carcinoma (HGSC) is unresponsive to immune checkpoint blockade despite significant frequencies of exhausted T cells. Here we apply mass cytometry and uncover decidual-like natural killer (dl-NK) cell subpopulations (CD56+CD9+CXCR3+KIR+CD3-CD16-) in newly diagnosed HGSC samples that correlate with both tumor and transitioning epithelial-mesenchymal cell abundance. We show different combinatorial expression patterns of ligands for activating and inhibitory NK receptors within three HGSC tumor compartments: epithelial (E), transitioning epithelial-mesenchymal (EV), and mesenchymal (vimentin expressing [V]), with a more inhibitory ligand phenotype in V cells. In cocultures, NK-92 natural killer cells acquire CD9 from HGSC tumor cells by trogocytosis, resulting in reduced anti-tumor cytokine production and cytotoxicity. Cytotoxicity in these cocultures is restored with a CD9-blocking antibody or CD9 CRISPR knockout, thereby identifying mechanisms of immune suppression in HGSC. CD9 is widely expressed in HGSC tumors and so represents an important new therapeutic target with immediate relevance for NK immunotherapy.
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MESH Headings
- Antineoplastic Agents/pharmacology
- Carboplatin/pharmacology
- Cell Line, Tumor
- Coculture Techniques
- Cytokines/metabolism
- Cytotoxicity, Immunologic
- Female
- Humans
- Immune Tolerance/drug effects
- Killer Cells, Natural/drug effects
- Killer Cells, Natural/immunology
- Killer Cells, Natural/metabolism
- Lymphocytes, Tumor-Infiltrating/drug effects
- Lymphocytes, Tumor-Infiltrating/immunology
- Lymphocytes, Tumor-Infiltrating/metabolism
- Neoplasms, Cystic, Mucinous, and Serous/drug therapy
- Neoplasms, Cystic, Mucinous, and Serous/immunology
- Neoplasms, Cystic, Mucinous, and Serous/metabolism
- Neoplasms, Cystic, Mucinous, and Serous/pathology
- Ovarian Neoplasms/drug therapy
- Ovarian Neoplasms/immunology
- Ovarian Neoplasms/metabolism
- Ovarian Neoplasms/pathology
- Phenotype
- Receptors, Natural Killer Cell/metabolism
- Tetraspanin 29/metabolism
- Trogocytosis
- Tumor Escape/drug effects
- Tumor Microenvironment/immunology
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Affiliation(s)
- Veronica D Gonzalez
- Baxter Laboratory for Stem Cell Biology, Department of Microbiology & Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Ying-Wen Huang
- Department of Urology Stanford University School of Medicine, Stanford, CA 94305, USA
| | | | - Shih-Yu Chen
- Baxter Laboratory for Stem Cell Biology, Department of Microbiology & Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Kenyi Donoso
- Department of Urology Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Karen Sachs
- Next Generation Analytics, Palo Alto, CA 94301, USA
| | - Andrew J Gentles
- Department of Medicine (Quantitative Sciences Unit, Biomedical Informatics) Biomedical Data Science, Stanford University School of Medicine, Stanford, CA 94305, USA; Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Grace M Allard
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Kevin S Kolahi
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Brooke E Howitt
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA 94305, USA; Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Ermelinda Porpiglia
- Baxter Laboratory for Stem Cell Biology, Department of Microbiology & Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Wendy J Fantl
- Department of Urology Stanford University School of Medicine, Stanford, CA 94305, USA; Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA 94305, USA; Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, CA 94305, USA.
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49
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An automated real-time microfluidic platform to probe single NK cell heterogeneity and cytotoxicity on-chip. Sci Rep 2021; 11:17084. [PMID: 34429486 PMCID: PMC8385055 DOI: 10.1038/s41598-021-96609-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 08/03/2021] [Indexed: 12/28/2022] Open
Abstract
Cytotoxicity is a vital effector mechanism used by immune cells to combat pathogens and cancer cells. While conventional cytotoxicity assays rely on averaged end-point measures, crucial insights on the dynamics and heterogeneity of effector and target cell interactions cannot be extracted, emphasizing the need for dynamic single-cell analysis. Here, we present a fully automated droplet-based microfluidic platform that allowed the real-time monitoring of effector-target cell interactions and killing, allowing the screening of over 60,000 droplets identifying 2000 individual cellular interactions monitored over 10 h. During the course of incubation, we observed that the dynamics of cytotoxicity within the Natural Killer (NK) cell population varies significantly over the time. Around 20% of the total NK cells in droplets showed positive cytotoxicity against paired K562 cells, most of which was exhibited within first 4 h of cellular interaction. Using our single cell analysis platform, we demonstrated that the population of NK cells is composed of individual cells with different strength in their effector functions, a behavior masked in conventional studies. Moreover, the versatility of our platform will allow the dynamic and resolved study of interactions between immune cell types and the finding and characterization of functional sub-populations, opening novel ways towards both fundamental and translational research.
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50
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Zaiatz Bittencourt V, Jones F, Tosetto M, Doherty GA, Ryan EJ. Dysregulation of Metabolic Pathways in Circulating Natural Killer Cells Isolated from Inflammatory Bowel Disease Patients. J Crohns Colitis 2021; 15:1316-1325. [PMID: 33460436 PMCID: PMC8328302 DOI: 10.1093/ecco-jcc/jjab014] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND AND AIMS Inflammatory bowel diseases [IBD], comprising Crohn's disease [CD] and ulcerative colitis [UC], are chronic conditions characterized by severe dysregulation of innate and adaptive immunity resulting in the destruction of the intestinal mucosa. Natural killer [NK] cells play a pivotal role in the dynamic interaction between the innate and adaptive immune response. There is an increasing appreciation for the key role immunometabolism plays in the regulation of NK cell function, yet little remains known about the metabolic profile, cytokine secretion, and killing capacity of human NK cells during active IBD. METHODS Peripheral blood mononuclear cells were isolated from peripheral blood of patients with moderate to severely active IBD and healthy controls. NK cells were stained with a combination of cell surface receptors, intracellular cytokines, and proteins and analyzed by flow cytometry. For measurements of NK cell cytotoxicity, the calcein-AM release assay was performed. The metabolic profile was analyzed by an extracellular flux analyzer. RESULTS NK cells from IBD patients produce large quantities of pro-inflammatory cytokines, IL-17A and TNF-α ex vivo, but have limited killing capability. Furthermore, patient NK cells have reduced mitochondrial mass and oxidative phosphorylation. mTORC1, an important cell and metabolic regulator, demonstrated limited activity in both freshly isolated cells and cytokine-stimulated cells. CONCLUSIONS Our results demonstrate that circulating NK cells of IBD patients have an unbalanced metabolic profile, with faulty mitochondria and reduced capacity to kill. These aberrations in NK cell metabolism may contribute to defective killing and thus the secondary infections and increased risk of cancer observed in IBD patients.
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Affiliation(s)
- Vanessa Zaiatz Bittencourt
- Centre for Colorectal Disease, St Vincent’s University Hospital, School of Medicine, University College Dublin, Dublin, Ireland
| | - Fiona Jones
- Centre for Colorectal Disease, St Vincent’s University Hospital, School of Medicine, University College Dublin, Dublin, Ireland
| | - Miriam Tosetto
- Centre for Colorectal Disease, St Vincent’s University Hospital, School of Medicine, University College Dublin, Dublin, Ireland
| | - Glen A Doherty
- Centre for Colorectal Disease, St Vincent’s University Hospital, School of Medicine, University College Dublin, Dublin, Ireland
| | - Elizabeth J Ryan
- Centre for Colorectal Disease, St Vincent’s University Hospital, School of Medicine, University College Dublin, Dublin, Ireland
- Department of Biological Sciences, Health Research Institute, University of Limerick, Limerick, Ireland
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