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Peng H, Endo Y, Wu WJ. Define Critical Parameters of Trastuzumab-Mediated ADCC Assays via Assay Optimization Processes, Focusing on the Impact of Cryopreserved Effector Cells on Assay Performance. Cancers (Basel) 2024; 16:2367. [PMID: 39001429 PMCID: PMC11240353 DOI: 10.3390/cancers16132367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 06/22/2024] [Accepted: 06/25/2024] [Indexed: 07/16/2024] Open
Abstract
The mechanisms of mAb-induced ADCC have been well established. However, the ADCC bioassays used to quantify mAb-induced ADCC require continued development/refinement to properly assess and compare the potency of newly developed therapeutic mAbs and biosimilars to meet regulatory requirements. We used trastuzumab and a lactate dehydrogenase (LDH)-based ADCC bioassay as a model to define critical parameters of the ADCC bioassay, describing how several bioassay parameters, including preparation of effector cells, E/T ratio, target cell selection, bioassay media components, and treatment time can influence the data quality of the ADCC activity. We confirm that a 4 to 24 h recovery cultivation is required to restore peripheral blood mononuclear cells (PBMCs) and natural killer (NK) cell activity toward ADCC when using cryopreserved PBMCs. Furthermore, we delineated the cellular mechanisms underlying the restored ADCC activity following the recovery cultivation. We observed that CD69, an early marker of NK cell activation, was upregulated and a new subset CD56dim/CD16dim population was dramatically increased in the recovered NK cells, which led to an increase in expression and secretion of perforin, granzyme B, and cytokine production. This study provides comprehensive technical insights into ADCC bioassay optimization to inform trastuzumab biosimilar development. The knowledge gained from this study can also be leveraged to guide bioassay development for therapeutic mAbs with ADCC as the primary mechanism of action.
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Affiliation(s)
- Hanjing Peng
- Division of Pharmaceutical Quality Research III (OPQR III), Office of Pharmaceutical Quality Research (OPQR), Office of Pharmaceutical Quality (OPQ), Center for Drug Evaluation and Research (CDER), U.S. Food and Drug Administration (FDA), 10903 New Hampshire Avenue, Silver Spring, MD 20993, USA
| | - Yukinori Endo
- Division of Pharmaceutical Quality Research III (OPQR III), Office of Pharmaceutical Quality Research (OPQR), Office of Pharmaceutical Quality (OPQ), Center for Drug Evaluation and Research (CDER), U.S. Food and Drug Administration (FDA), 10903 New Hampshire Avenue, Silver Spring, MD 20993, USA
| | - Wen Jin Wu
- Division of Pharmaceutical Quality Research III (OPQR III), Office of Pharmaceutical Quality Research (OPQR), Office of Pharmaceutical Quality (OPQ), Center for Drug Evaluation and Research (CDER), U.S. Food and Drug Administration (FDA), 10903 New Hampshire Avenue, Silver Spring, MD 20993, USA
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2
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Huang M, Liu Y, Yan Q, Peng M, Ge J, Mo Y, Wang Y, Wang F, Zeng Z, Li Y, Fan C, Xiong W. NK cells as powerful therapeutic tool in cancer immunotherapy. Cell Oncol (Dordr) 2024; 47:733-757. [PMID: 38170381 DOI: 10.1007/s13402-023-00909-3] [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] [Accepted: 12/04/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND Natural killer (NK) cells have gained considerable attention and hold great potential for their application in tumor immunotherapy. This is mainly due to their MHC-unrestricted and pan-specific recognition capabilities, as well as their ability to rapidly respond to and eliminate target cells. To artificially generate therapeutic NK cells, various materials can be utilized, such as peripheral blood mononuclear cells (PBMCs), umbilical cord blood (UCB), induced pluripotent stem cells (iPSCs), and NK cell lines. Exploiting the therapeutic potential of NK cells to treat tumors through in vivo and in vitro therapeutic modalities has yielded positive therapeutic results. CONCLUSION This review provides a comprehensive description of NK cell therapeutic approaches for tumors and discusses the current problems associated with these therapeutic approaches and the prospects of NK cell therapy for tumors.
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Affiliation(s)
- Mao Huang
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Yixuan Liu
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Qijia Yan
- Department of Pathology, Xiangya Hospital, Central South University, 410078, Changsha, Hunan, China
| | - Miao Peng
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Junshang Ge
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Yongzhen Mo
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Yumin Wang
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, 410078, Changsha, Hunan, China
| | - Fuyan Wang
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Zhaoyang Zeng
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Yong Li
- Department of Medicine, Comprehensive Cancer Center, Baylor College of Medicine, Alkek Building, RM N720, Houston, TX, USA
| | - Chunmei Fan
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, Changsha, China.
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China.
- Department of Histology and Embryology, Xiangya School of Medicine, Central South University, 410013, Changsha, Hunan Province, China.
| | - Wei Xiong
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, Changsha, China.
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China.
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Berjis A, Muthumani D, Aguilar OA, Pomp O, Johnson O, Finck AV, Engel NW, Chen L, Plachta N, Scholler J, Lanier LL, June CH, Sheppard NC. Pretreatment with IL-15 and IL-18 rescues natural killer cells from granzyme B-mediated apoptosis after cryopreservation. Nat Commun 2024; 15:3937. [PMID: 38729924 PMCID: PMC11087472 DOI: 10.1038/s41467-024-47574-0] [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: 09/07/2023] [Accepted: 04/04/2024] [Indexed: 05/12/2024] Open
Abstract
Human natural killer (NK) cell-based therapies are under assessment for treating various cancers, but cryopreservation reduces both the recovery and function of NK cells, thereby limiting their therapeutic feasibility. Using cryopreservation protocols optimized for T cells, here we find that ~75% of NK cells die within 24 h post-thaw, with the remaining cells displaying reduced cytotoxicity. Using CRISPR-Cas9 gene editing and confocal microscopy, we find that cryopreserved NK cells largely die via apoptosis initiated by leakage of granzyme B from cytotoxic vesicles. Pretreatment of NK cells with a combination of Interleukins-15 (IL-15) and IL-18 prior to cryopreservation improves NK cell recovery to ~90-100% and enables equal tumour control in a xenograft model of disseminated Raji cell lymphoma compared to non-cryopreserved NK cells. The mechanism of IL-15 and IL-18-induced protection incorporates two mechanisms: a transient reduction in intracellular granzyme B levels via degranulation, and the induction of antiapoptotic genes.
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Affiliation(s)
- Abdulla Berjis
- Center for Cellular Immunotherapies, University of Pennsylvania, Philadelphia, PA, USA.
- School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, USA.
| | - Deeksha Muthumani
- Center for Cellular Immunotherapies, University of Pennsylvania, Philadelphia, PA, USA
- School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, USA
| | - Oscar A Aguilar
- Department of Microbiology and Immunology and Parker Institute of Cancer Immunotherapy, University of California; San Francisco, San Francisco, CA, USA
| | - Oz Pomp
- Department of Cell and Developmental Biology, Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Omar Johnson
- Center for Cellular Immunotherapies, University of Pennsylvania, Philadelphia, PA, USA
| | - Amanda V Finck
- Center for Cellular Immunotherapies, University of Pennsylvania, Philadelphia, PA, USA
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Nils W Engel
- Center for Cellular Immunotherapies, University of Pennsylvania, Philadelphia, PA, USA
| | - Linhui Chen
- Center for Cellular Immunotherapies, University of Pennsylvania, Philadelphia, PA, USA
- Institute for Biomedical Informatics, the Bioinformatic Core, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Nicolas Plachta
- Department of Cell and Developmental Biology, Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - John Scholler
- Center for Cellular Immunotherapies, University of Pennsylvania, Philadelphia, PA, USA
| | - Lewis L Lanier
- Department of Microbiology and Immunology and Parker Institute of Cancer Immunotherapy, University of California; San Francisco, San Francisco, CA, USA
| | - Carl H June
- Center for Cellular Immunotherapies, University of Pennsylvania, Philadelphia, PA, USA
- Parker Institute for Cancer Immunotherapy, University of Pennsylvania, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Neil C Sheppard
- Center for Cellular Immunotherapies, University of Pennsylvania, Philadelphia, PA, USA.
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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Oyer JL, Croom-Perez TJ, Hasan MF, Rivera-Huertas JA, Gitto SB, Mucha JM, Zhu X, Altomare DA, Igarashi RY, Copik AJ. PM21-particle stimulation augmented with cytokines enhances NK cell expansion and confers memory-like characteristics with enhanced survival. Front Immunol 2024; 15:1383281. [PMID: 38711506 PMCID: PMC11070970 DOI: 10.3389/fimmu.2024.1383281] [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: 02/07/2024] [Accepted: 04/02/2024] [Indexed: 05/08/2024] Open
Abstract
NK cell therapeutics have gained significant attention as a potential cancer treatment. Towards therapeutic use, NK cells need to be activated and expanded to attain high potency and large quantities for an effective dosage. This is typically done by ex vivo stimulation with cytokines to enhance functionality or expansion for 10-14 days to increase both their activity and quantity. Attaining a robust methodology to produce large doses of potent NK cells for an off-the-shelf product is highly desirable. Notably, past reports have shown that stimulating NK cells with IL-12, IL-15, and IL-18 endows them with memory-like properties, better anti-tumor activity, and persistence. While this approach produces NK cells with clinically favorable characteristics supported by encouraging early results for the treatment of hematological malignancies, its limited scalability, variability in initial doses, and the necessity for patient-specific production hinder its broader application. In this study, stimulation of NK cells with PM21-particles derived from K562-41BBL-mbIL21 cells was combined with memory-like induction using cytokines IL-12, IL-15, and IL-18 to produce NK cells with enhanced anti-tumor function. The use of cytokines combined with PM21-particles (cytokine and particle, CAP) significantly enhanced NK cell expansion, achieving a remarkable 8,200-fold in 14 days. Mechanistically, this significant improvement over expansion with PM21-particles alone was due to the upregulation of receptors for key stimulating ligands (4-1BBL and IL-2), resulting in a synergy that drives substantial NK cell growth, showcasing the potential for more effective therapeutic applications. The therapeutic potential of CAP-NK cells was demonstrated by the enhanced metabolic fitness, persistence, and anti-tumor function both in vitro and in vivo. Finally, CAP-NK cells were amenable to current technologies used in developing therapeutic NK cell products, including CRISPR/Cas9-based techniques to generate a triple-gene knockout or a gene knock-in. Taken together, these data demonstrate that the addition of cytokines enhanced the already effective method of ex vivo generation of therapeutic NK cells with PM21-particles, yielding a superior NK cell product for manufacturing efficiency and potential therapeutic applications.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Alicja J. Copik
- Burnett School of Biomedical Science, College of Medicine, University of Central Florida, Orlando, FL, United States
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5
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Das S, Niemeyer E, Leung ZA, Fritsch T, Matosevic S. Human Natural Killer Cells Cryopreserved without DMSO Sustain Robust Effector Responses. Mol Pharm 2024; 21:651-660. [PMID: 38230666 DOI: 10.1021/acs.molpharmaceut.3c00798] [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] [Indexed: 01/18/2024]
Abstract
Natural killer (NK) cell-based immunotherapy has benefitted from the multiple strengths that NK cells offer in adoptive transfer settings, not the least of which is their safety and potential for allogeneic use. Such use, however, necessitates the cryopreservation of NK cell-based therapy products to support logistical efforts in deploying these cells in different locations, decentralized from the point of collection or manufacturing. DMSO, the most commonly used cryoprotective agent (CPA), has been effective in protecting immune cells during freezing and thawing, but its ability to induce molecular and genetic changes to immune cells as well as its toxicity has stimulated interest in alternative CPAs. However, replacing DMSO's ability to act intracellularly has been difficult, and the sensitivity of human peripheral blood-derived NK cells to freezing and thawing-induced damage has meant that investigations into the potential of replacing DMSO are lacking. As a first step toward establishing the feasibility of cryopreserving human NK cells with CPAs' alternative to DMSO, we investigate the potential of using noncell-penetrating and cell-penetrating CPAs to recover NK cells post-thaw without DMSO. Here, we find that cryoprotection using cell-penetrating CPAs can retain the viability of human peripheral blood-derived NK cells to a comparable degree to DMSO. In addition, non-DMSO-cryopreserved human NK cells were as cytotoxic as those cryopreserved with DMSO and displayed a comparable level of surface markers of activation. In summary, we present the first example of the potential of developing non-DMSO CPA formulations that could be deployed in future cell therapy regimens.
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Affiliation(s)
- Soumyajit Das
- Department of Industrial and Molecular Pharmaceutics, Purdue University, West Lafayette, Indiana 47907, United States
| | - Emmett Niemeyer
- Department of Industrial and Molecular Pharmaceutics, Purdue University, West Lafayette, Indiana 47907, United States
| | - Zach A Leung
- Department of Industrial and Molecular Pharmaceutics, Purdue University, West Lafayette, Indiana 47907, United States
| | - Tyler Fritsch
- Department of Industrial and Molecular Pharmaceutics, Purdue University, West Lafayette, Indiana 47907, United States
| | - Sandro Matosevic
- Department of Industrial and Molecular Pharmaceutics, Purdue University, West Lafayette, Indiana 47907, United States
- Institute for Cancer Research, Purdue University, West Lafayette, Indiana 47907, United States
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6
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Vivier E, Rebuffet L, Narni-Mancinelli E, Cornen S, Igarashi RY, Fantin VR. Natural killer cell therapies. Nature 2024; 626:727-736. [PMID: 38383621 DOI: 10.1038/s41586-023-06945-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 12/06/2023] [Indexed: 02/23/2024]
Abstract
Natural killer (NK) cells are lymphocytes of the innate immune system. A key feature of NK cells is their ability to recognize a wide range of cells in distress, particularly tumour cells and cells infected with viruses. They combine both direct effector functions against their cellular targets and participate in the generation, shaping and maintenance of a multicellular immune response. As our understanding has deepened, several therapeutic strategies focused on NK cells have been conceived and are currently in various stages of development, from preclinical investigations to clinical trials. Here we explore in detail the complexity of NK cell biology in humans and highlight the role of these cells in cancer immunity. We also analyse the harnessing of NK cell immunity through immune checkpoint inhibitors, NK cell engagers, and infusions of preactivated or genetically modified, autologous or allogeneic NK cell products.
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Affiliation(s)
- Eric Vivier
- Innate Pharma Research Laboratories, Innate Pharma, Marseille, France.
- Aix Marseille Université, CNRS, INSERM, Centre d'Immunologie de Marseille-Luminy, Marseille, France.
- APHM, Hôpital de la Timone, Marseille-Immunopôle, Marseille, France.
- Paris-Saclay Cancer Cluster, Le Kremlin-Bicêtre, France.
| | - Lucas Rebuffet
- Aix Marseille Université, CNRS, INSERM, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Emilie Narni-Mancinelli
- Aix Marseille Université, CNRS, INSERM, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Stéphanie Cornen
- Innate Pharma Research Laboratories, Innate Pharma, Marseille, France
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Saultz JN, Otegbeye F. Optimizing the cryopreservation and post-thaw recovery of natural killer cells is critical for the success of off-the-shelf platforms. Front Immunol 2023; 14:1304689. [PMID: 38193082 PMCID: PMC10773738 DOI: 10.3389/fimmu.2023.1304689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 11/30/2023] [Indexed: 01/10/2024] Open
Abstract
Natural killer (NK) cells are a promising allogeneic, off-the-shelf, cellular immunotherapy product. These cells can be manipulated ex vivo, genetically edited to enhance tumor targeting and expanded to produce large cell banks for multiple patient infusions. Therapeutic efficacy of these products depends on the recovery of viable and functional cells post-thaw. Post-thaw loss of viability and cytolytic activity results in large, and often variable, discrepancies between the intended cell dose (based on counts at cryopreservation) and the actual dose administered. Compared to their highly activated state in fresh culture, post-thaw NK cells demonstrate critical changes in cytokine production, cytotoxic activity, in vivo proliferation and migration. When these NK cells are introduced into the highly immunosuppressive tumor microenvironment, the functional changes induced by cryopreservation further limits the clinical potential of these products. This report will review the impact of cryopreservation on ex vivo expanded NK cells and outlines strategies described in published studies to recover post-thaw function.
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Affiliation(s)
- Jennifer N. Saultz
- Division of Hematology/Medical Oncology, Oregon Health and Science University, Portland, OR, United States
| | - Folashade Otegbeye
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA, United States
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8
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Hasan MF, Campbell AR, Croom-Perez TJ, Oyer JL, Dieffenthaller TA, Robles-Carrillo LD, Cash CA, Eloriaga JE, Kumar S, Andersen BW, Naeimi Kararoudi M, Tullius BP, Lee DA, Copik AJ. Knockout of the inhibitory receptor TIGIT enhances the antitumor response of ex vivo expanded NK cells and prevents fratricide with therapeutic Fc-active TIGIT antibodies. J Immunother Cancer 2023; 11:e007502. [PMID: 38081778 PMCID: PMC10729131 DOI: 10.1136/jitc-2023-007502] [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] [Accepted: 11/19/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Inhibitory receptor T-cell Immunoreceptor with Ig and ITIM domains (TIGIT) expressed by Natural Killer (NK) and T cells regulates cancer immunity and has been touted as the next frontier in the development of cancer immunotherapeutics. Although early results of anti-TIGIT and its combinations with antiprogrammed death-ligand 1 were highly exciting, results from an interim analysis of phase III trials are disappointing. With mixed results, there is a need to understand the effects of therapeutic anti-TIGIT on the TIGIT+ immune cells to support its clinical use. Most of the TIGIT antibodies in development have an Fc-active domain, which binds to Fc receptors on effector cells. In mouse models, Fc-active anti-TIGIT induced superior immunity, while Fc receptor engagement was required for its efficacy. NK-cell depletion compromised the antitumor immunity of anti-TIGIT indicating the essential role of NK cells in the efficacy of anti-TIGIT. Since NK cells express TIGIT and Fc-receptor CD16, Fc-active anti-TIGIT may deplete NK cells via fratricide, which has not been studied. METHODS CRISPR-Cas9-based TIGIT knockout (KO) was performed in expanded NK cells. Phenotypic and transcriptomic properties of TIGIT KO and wild-type (WT) NK cells were compared with flow cytometry, CyTOF, and RNA sequencing. The effect of TIGIT KO on NK-cell cytotoxicity was determined by calcein-AM release and live cell imaging-based cytotoxicity assays. The metabolic properties of TIGIT KO and WT NK cells were compared with a Seahorse analyzer. The effect of the Fc-component of anti-TIGIT on NK-cell fratricide was determined by co-culturing WT and TIGIT KO NK cells with Fc-active and Fc-inactive anti-TIGIT. RESULTS TIGIT KO increased the cytotoxicity of NK cells against multiple cancer cell lines including spheroids. TIGIT KO NK cells upregulated mTOR complex 1 (mTORC1) signaling and had better metabolic fitness with an increased basal glycolytic rate when co-cultured with cancer cells compared with WT NK cells. Importantly, TIGIT KO prevented NK-cell fratricide when combined with Fc-active anti-TIGIT. CONCLUSIONS TIGIT KO in ex vivo expanded NK cells increased their cytotoxicity and metabolic fitness and prevented NK-cell fratricide when combined with Fc-active anti-TIGIT antibodies. These fratricide-resistant TIGIT KO NK cells have therapeutic potential alone or in combination with Fc-active anti-TIGIT antibodies to enhance their efficacy.
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Affiliation(s)
- Md Faqrul Hasan
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, Florida, USA
| | - Amanda R Campbell
- Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA
| | - Tayler J Croom-Perez
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, Florida, USA
| | - Jeremiah L Oyer
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, Florida, USA
| | | | - Liza D Robles-Carrillo
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, Florida, USA
| | - Catherine A Cash
- Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA
| | - Jonathan E Eloriaga
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, Florida, USA
| | - Sanjana Kumar
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, Florida, USA
| | - Brendan W Andersen
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, Florida, USA
| | - Meisam Naeimi Kararoudi
- Center for Childhood Cancer, Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, Ohio, USA
- Department of Pediatrics, School of Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Brian P Tullius
- Pediatric Cellular Therapies, AdventHealth for Children, Orlando, Florida, USA
| | - Dean A Lee
- Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA
| | - Alicja J Copik
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, Florida, USA
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9
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Vu SH, Pham HH, Pham TTP, Le TT, Vo MC, Jung SH, Lee JJ, Nguyen XH. Adoptive NK Cell Therapy - a Beacon of Hope in Multiple Myeloma Treatment. Front Oncol 2023; 13:1275076. [PMID: 38023191 PMCID: PMC10656693 DOI: 10.3389/fonc.2023.1275076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 10/18/2023] [Indexed: 12/01/2023] Open
Abstract
Major advances in the treatment of multiple myeloma (MM) have been achieved by effective new agents such as proteasome inhibitors, immunomodulatory drugs, or monoclonal antibodies. Despite significant progress, MM remains still incurable and, recently, cellular immunotherapy has emerged as a promising treatment for relapsed/refractory MM. The emergence of chimeric antigen receptor (CAR) technology has transformed immunotherapy by enhancing the antitumor functions of T cells and natural killer (NK) cells, leading to effective control of hematologic malignancies. Recent advancements in gene delivery to NK cells have paved the way for the clinical application of CAR-NK cell therapy. CAR-NK cell therapy strategies have demonstrated safety, tolerability, and substantial efficacy in treating B cell malignancies in various clinical settings. However, their effectiveness in eliminating MM remains to be established. This review explores multiple approaches to enhance NK cell cytotoxicity, persistence, expansion, and manufacturing processes, and highlights the challenges and opportunities associated with CAR-NK cell therapy against MM. By shedding light on these aspects, this review aims to provide valuable insights into the potential of CAR-NK cell therapy as a promising approach for improving the treatment outcomes of MM patients.
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Affiliation(s)
- Son Hai Vu
- Hi-Tech Center and Vinmec-VinUni Institute of Immunology, Vinmec Healthcare System, Hanoi, Vietnam
| | - Ha Hong Pham
- Hi-Tech Center and Vinmec-VinUni Institute of Immunology, Vinmec Healthcare System, Hanoi, Vietnam
| | - Thao Thi Phuong Pham
- Hi-Tech Center and Vinmec-VinUni Institute of Immunology, Vinmec Healthcare System, Hanoi, Vietnam
| | - Thanh Thien Le
- Hi-Tech Center and Vinmec-VinUni Institute of Immunology, Vinmec Healthcare System, Hanoi, Vietnam
| | - Manh-Cuong Vo
- Research Center for Cancer Immunotherapy, Chonnam National University Hwasun Hospital, Hwasun, Jeollanamdo, Republic of Korea
| | - Sung-Hoon Jung
- Research Center for Cancer Immunotherapy, Chonnam National University Hwasun Hospital, Hwasun, Jeollanamdo, Republic of Korea
- Department of Hematology-Oncology, Chonnam National University Hwasun Hospital and Chonnam National University Medical School, Hwasun, Jeollanamdo, Republic of Korea
| | - Je-Jung Lee
- Research Center for Cancer Immunotherapy, Chonnam National University Hwasun Hospital, Hwasun, Jeollanamdo, Republic of Korea
- Department of Hematology-Oncology, Chonnam National University Hwasun Hospital and Chonnam National University Medical School, Hwasun, Jeollanamdo, Republic of Korea
| | - Xuan-Hung Nguyen
- Hi-Tech Center and Vinmec-VinUni Institute of Immunology, Vinmec Healthcare System, Hanoi, Vietnam
- College of Health Sciences, VinUniversity, Hanoi, Vietnam
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10
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Timonen VA, Kerkelä E, Impola U, Penna L, Partanen J, Kilpivaara O, Arvas M, Pitkänen E. DeepIFC: Virtual fluorescent labeling of blood cells in imaging flow cytometry data with deep learning. Cytometry A 2023; 103:807-817. [PMID: 37276178 DOI: 10.1002/cyto.a.24770] [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: 09/30/2022] [Revised: 05/16/2023] [Accepted: 06/02/2023] [Indexed: 06/07/2023]
Abstract
Imaging flow cytometry (IFC) combines flow cytometry with microscopy, allowing rapid characterization of cellular and molecular properties via high-throughput single-cell fluorescent imaging. However, fluorescent labeling is costly and time-consuming. We present a computational method called DeepIFC based on the Inception U-Net neural network architecture, able to generate fluorescent marker images and learn morphological features from IFC brightfield and darkfield images. Furthermore, the DeepIFC workflow identifies cell types from the generated fluorescent images and visualizes the single-cell features generated in a 2D space. We demonstrate that rarer cell types are predicted well when a balanced data set is used to train the model, and the model is able to recognize red blood cells not seen during model training as a distinct entity. In summary, DeepIFC allows accurate cell reconstruction, typing and recognition of unseen cell types from brightfield and darkfield images via virtual fluorescent labeling.
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Affiliation(s)
- Veera A Timonen
- Institute for Molecular Medicine Finland (FIMM), Helsinki Institute of Life Science (HiLIFE), University of Helsinki, Helsinki, Finland
- Applied Tumor Genomics Research Program, Research Programs Unit, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Erja Kerkelä
- Advanced Cell Therapy Centre, Finnish Red Cross Blood Service, Vantaa, Finland
| | - Ulla Impola
- Research and Development, Finnish Red Cross Blood Service, Helsinki, Finland
| | - Leena Penna
- Research and Development, Finnish Red Cross Blood Service, Helsinki, Finland
| | - Jukka Partanen
- Research and Development, Finnish Red Cross Blood Service, Helsinki, Finland
| | - Outi Kilpivaara
- Applied Tumor Genomics Research Program, Research Programs Unit, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Department of Medical and Clinical Genetics, Medicum, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- HUSLAB Laboratory of Genetics, HUS Diagnostic Center, Helsinki University Hospital, Helsinki, Finland
- iCAN Digital Precision Cancer Medicine Flagship, Helsinki, Finland
| | - Mikko Arvas
- Research and Development, Finnish Red Cross Blood Service, Helsinki, Finland
| | - Esa Pitkänen
- Institute for Molecular Medicine Finland (FIMM), Helsinki Institute of Life Science (HiLIFE), University of Helsinki, Helsinki, Finland
- Applied Tumor Genomics Research Program, Research Programs Unit, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- iCAN Digital Precision Cancer Medicine Flagship, Helsinki, Finland
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11
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Wang M, Mahajan A, Miller JS, McKenna DH, Aksan A. Physicochemical Mechanisms of Protection Offered by Agarose Encapsulation during Cryopreservation of Mammalian Cells in the Absence of Membrane-Penetrating Cryoprotectants. ACS APPLIED BIO MATERIALS 2023; 6:2226-2236. [PMID: 37212878 PMCID: PMC10330259 DOI: 10.1021/acsabm.3c00098] [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] [Indexed: 05/23/2023]
Abstract
During freeze/thaw, cells are exposed to mechanical, thermal, chemical, and osmotic stresses, which cause loss of viability and function. Cryopreservation agents such as dimethyl sulfoxide (DMSO) are deployed to minimize freeze/thaw damage. However, there is a pressing need to eliminate DMSO from cryopreservation solutions due to its adverse effects. This is of the highest priority especially for cryopreservation of infusible/transplantable cell therapy products. In order to address this issue, we introduce reversible encapsulation in agarose hydrogels in the presence of the membrane-impermeable cryoprotectant, trehalose, as a viable, safe, and effective cryopreservation method. Our findings, which are supported by IR spectroscopy and differential scanning calorimetry analyses, demonstrate that encapsulation in 0.75% agarose hydrogels containing 10-20% trehalose inhibits mechanical damage induced by eutectic phase change, devitrification, and recrystallization, resulting in post-thaw viability comparable to the gold standard 10% DMSO.
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Affiliation(s)
- Mian Wang
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455
| | - Advitiya Mahajan
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455
| | - Jeffrey S. Miller
- Department of Medicine, University of Minnesota, Minneapolis, MN 55455
| | - David H. McKenna
- Molecular & Cellular Therapeutics, University of Minnesota, St. Paul, MN 55108
| | - Alptekin Aksan
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455
- The BioTechnology Institute, University of Minnesota, St. Paul, MN 55108
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12
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Hasan MF, Croom-Perez TJ, Oyer JL, Dieffenthaller TA, Robles-Carrillo LD, Eloriaga JE, Kumar S, Andersen BW, Copik AJ. TIGIT Expression on Activated NK Cells Correlates with Greater Anti-Tumor Activity but Promotes Functional Decline upon Lung Cancer Exposure: Implications for Adoptive Cell Therapy and TIGIT-Targeted Therapies. Cancers (Basel) 2023; 15:2712. [PMID: 37345049 DOI: 10.3390/cancers15102712] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/02/2023] [Accepted: 05/07/2023] [Indexed: 06/23/2023] Open
Abstract
Treatments targeting TIGIT have gained a lot of attention due to strong preclinical and early clinical results, particularly with anti-PD-(L)1 therapeutics. However, this combination has failed to meet progression-free survival endpoints in phase III trials. Most of our understanding of TIGIT comes from studies of T cell function. Yet, this inhibitory receptor is often upregulated to the same, or higher, extent on NK cells in cancers. Studies in murine models have demonstrated that TIGIT inhibits NK cells and promotes exhaustion, with its effects on tumor control also being dependent on NK cells. However, there are limited studies assessing the role of TIGIT on the function of human NK cells (hNK), particularly in lung cancer. Most studies used NK cell lines or tested TIGIT blockade to reactivate exhausted cells obtained from cancer patients. For therapeutic advancement, a better understanding of TIGIT in the context of activated hNK cells is crucial, which is different than exhausted NK cells, and critical in the context of adoptive NK cell therapeutics that may be combined with TIGIT blockade. In this study, the effect of TIGIT blockade on the anti-tumor activities of human ex vivo-expanded NK cells was evaluated in vitro in the context of lung cancer. TIGIT expression was higher on activated and/or expanded NK cells compared to resting NK cells. More TIGIT+ NK cells expressed major activating receptors and exerted anti-tumor response as compared to TIGIT- cells, indicating that NK cells with greater anti-tumor function express more TIGIT. However, long-term TIGIT engagement upon exposure to PVR+ tumors downregulated the cytotoxic function of expanded NK cells while the inclusion of TIGIT blockade increased cytotoxicity, restored the effector functions against PVR-positive targets, and upregulated immune inflammation-related gene sets. These combined results indicate that TIGIT blockade can preserve the activation state of NK cells during exposure to PVR+ tumors. These results support the notion that a functional NK cell compartment is critical for anti-tumor response and anti-TIGIT/adoptive NK cell combinations have the potential to improve outcomes.
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Affiliation(s)
- Md Faqrul Hasan
- Burnett School of Biomedical Science, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Tayler J Croom-Perez
- Burnett School of Biomedical Science, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Jeremiah L Oyer
- Burnett School of Biomedical Science, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Thomas A Dieffenthaller
- Burnett School of Biomedical Science, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Liza D Robles-Carrillo
- Burnett School of Biomedical Science, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Jonathan E Eloriaga
- Burnett School of Biomedical Science, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Sanjana Kumar
- Burnett School of Biomedical Science, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Brendan W Andersen
- Burnett School of Biomedical Science, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Alicja J Copik
- Burnett School of Biomedical Science, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
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13
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Smith DM, Schafer JR, Tullius B, Witkam L, Paust S. Natural killer cells for antiviral therapy. Sci Transl Med 2023; 15:eabl5278. [PMID: 36599006 DOI: 10.1126/scitranslmed.abl5278] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Natural killer (NK) cell-based immunotherapy is being explored for treating infectious diseases, including viral infections. Here, we discuss evidence of NK cell responses to different viruses, ongoing clinical efforts to treat such infections with NK cell products, and review platforms to generate NK cell products.
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Affiliation(s)
- Davey M Smith
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | | | | | - Laura Witkam
- Kiadis Pharma, Sanofi, 1105BP Amsterdam, Netherlands
| | - Silke Paust
- Department of Immunology and Microbiology, Scripps Research Institute, La Jolla, CA 92037, USA
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14
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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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