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Kusch N, Storm J, Macioszek A, Kisselmann E, Knabbe C, Kaltschmidt B, Kaltschmidt C. A Critical Role of Culture Medium Selection in Maximizing the Purity and Expansion of Natural Killer Cells. Cells 2024; 13:1148. [PMID: 38994999 PMCID: PMC11240826 DOI: 10.3390/cells13131148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 06/14/2024] [Accepted: 06/25/2024] [Indexed: 07/13/2024] Open
Abstract
Natural killer (NK) cells hold promise in cancer treatment due to their ability to spontaneously lyse cancer cells. For clinical use, high quantities of pure, functional NK cells are necessary. Combining adherence-based isolation with specialized media showed the unreliability of the isolation method, but demonstrated the superiority of the NK MACS® medium, particularly in suboptimal conditions. Neither human pooled serum, fetal calf serum (FCS), human platelet lysate, nor chemically defined serum replacement could substitute human AB serum. Interleukin (IL-)2, IL-15, IL-21, and combined CD2/NKp46 stimulation were assessed. IL-21 and CD2/NKp46 stimulation increased cytotoxicity, but reduced NK cell proliferation. IL-15 stimulation alone achieved the highest proliferation, but the more affordable IL-2 performed similarly. The RosetteSep™ human NK cell enrichment kit was effective for isolation, but the presence of peripheral blood mononuclear cells (PBMCs) in the culture enhanced NK cell proliferation, despite similar expression levels of CD16, NKp46, NKG2D, and ICAM-1. In line with this, purified NK cells cultured in NK MACS® medium with human AB serum and IL-2 demonstrated high cytotoxicity against primary glioblastoma stem cells.
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Affiliation(s)
- Neele Kusch
- Department of Cell Biology, Bielefeld University, 33615 Bielefeld, Germany
- Forschungsverbund BioMedizin Bielefeld/OWL FBMB e.V., 33617 Bielefeld, Germany
| | - Jonathan Storm
- Department of Cell Biology, Bielefeld University, 33615 Bielefeld, Germany
- Forschungsverbund BioMedizin Bielefeld/OWL FBMB e.V., 33617 Bielefeld, Germany
| | - Antonia Macioszek
- Department of Cell Biology, Bielefeld University, 33615 Bielefeld, Germany
| | - Ella Kisselmann
- Department of Cell Biology, Bielefeld University, 33615 Bielefeld, Germany
| | - Cornelius Knabbe
- Forschungsverbund BioMedizin Bielefeld/OWL FBMB e.V., 33617 Bielefeld, Germany
- Institute for Laboratory and Transfusion Medicine, Heart and Diabetes Centre NRW, Ruhr-University Bochum, 32545 Bad Oeynhausen, Germany
- Medical Faculty Ostwestfalen-Lippe, University of Bielefeld, 33615 Bielefeld, Germany
| | - Barbara Kaltschmidt
- Department of Cell Biology, Bielefeld University, 33615 Bielefeld, Germany
- Forschungsverbund BioMedizin Bielefeld/OWL FBMB e.V., 33617 Bielefeld, Germany
- Molecular Neurobiology, Bielefeld University, 33615 Bielefeld, Germany
| | - Christian Kaltschmidt
- Department of Cell Biology, Bielefeld University, 33615 Bielefeld, Germany
- Forschungsverbund BioMedizin Bielefeld/OWL FBMB e.V., 33617 Bielefeld, Germany
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Lee NK, Chang JW. Manufacturing Cell and Gene Therapies: Challenges in Clinical Translation. Ann Lab Med 2024; 44:314-323. [PMID: 38361427 PMCID: PMC10961620 DOI: 10.3343/alm.2023.0382] [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: 09/26/2023] [Revised: 11/24/2023] [Accepted: 01/29/2024] [Indexed: 02/17/2024] Open
Abstract
The safety and efficacy of both cell and gene therapies have been demonstrated in numerous preclinical and clinical trials. Chimeric antigen receptor T (CAR-T) cell therapy, which leverages the technologies of both cell and gene therapies, has also shown great promise for treating various cancers. Advancements in pertinent fields have also highlighted challenges faced while manufacturing cell and gene therapy products. Potential problems and obstacles must be addressed to ease the clinical translation of individual therapies. Literature reviews of representative cell-based, gene-based, and cell-based gene therapies with regard to their general manufacturing processes, the challenges faced during manufacturing, and QC specifications are limited. We review the general manufacturing processes of cell and gene therapies, including those involving mesenchymal stem cells, viral vectors, and CAR-T cells. The complexities associated with the manufacturing processes and subsequent QC/validation processes may present challenges that could impede the clinical progression of the products. This article addresses these potential challenges. Further, we discuss the use of the manufacturing model and its impact on cell and gene therapy.
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Affiliation(s)
- Na Kyung Lee
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology (SAIHST), Sungkyunkwan University, Seoul, Korea
- Cell and Gene Therapy Institute (CGTI), Research Institute for Future Medicine, Samsung Medical Center, Seoul, Korea
| | - Jong Wook Chang
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology (SAIHST), Sungkyunkwan University, Seoul, Korea
- Cell and Gene Therapy Institute (CGTI), Research Institute for Future Medicine, Samsung Medical Center, Seoul, Korea
- Cell and Gene Therapy Institute, ENCell Co. Ltd., Seoul, Korea
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3
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Tian JS, Tay A. Progress on Electro-Enhancement of Cell Manufacturing. SMALL METHODS 2024; 8:e2301281. [PMID: 38059759 DOI: 10.1002/smtd.202301281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/09/2023] [Indexed: 12/08/2023]
Abstract
With the long persistence of complex, chronic diseases in society, there is increasing motivation to develop cells as living medicine to treat diseases ranging from cancer to wounds. While cell therapies can significantly impact healthcare, the shortage of starter cells meant that considerable raw materials must be channeled solely for cell expansion, leading to expensive products with long manufacturing time which can prevent accessibility by patients who either cannot afford the treatment or have highly aggressive diseases and cannot wait that long. Over the last three decades, there has been increasing knowledge on the effects of electrical modulation on proliferation, but to the best of the knowledge, none of these studies went beyond how electro-control of cell proliferation may be extended to enhance industrial scale cell manufacturing. Here, this review is started by discussing the importance of maximizing cell yield during manufacturing before comparing strategies spanning biomolecular/chemical/physical to modulate cell proliferation. Next, the authors describe how factors governing invasive and non-invasive electrical stimulation (ES) including capacitive coupling electric field may be modified to boost cell manufacturing. This review concludes by describing what needs to be urgently performed to bridge the gap between academic investigation of ES to industrial applications.
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Affiliation(s)
- Johann Shane Tian
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Andy Tay
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
- Institute for Health Innovation and Technology, National University of Singapore, Singapore, 117599, Singapore
- NUS Tissue Engineering Program, National University of Singapore, Singapore, 117510, Singapore
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Lim Y, Park J, Lim JE, Park M, Koh SK, Lee M, Kim SK, Lee SH, Song KH, Park DG, Kim HY, Jeong BC, Cho D. Evaluating a combination treatment of NK cells and reovirus against bladder cancer cells using an in vitro assay to simulate intravesical therapy. Sci Rep 2024; 14:7390. [PMID: 38548803 PMCID: PMC10979019 DOI: 10.1038/s41598-024-56297-7] [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: 12/11/2023] [Accepted: 03/05/2024] [Indexed: 04/01/2024] Open
Abstract
Intravesical treatment using either reovirus or natural killer (NK) cells serves as an efficient strategy for the treatment of bladder cancer cells (BCCs); however, corresponding monotherapies have often shown modest cytotoxicity. The potential of a locoregional combination using high-dose reovirus and NK cell therapy in an intravesical approach has not yet been studied. In this study, we evaluated the effectiveness of reoviruses and expanded NK cells (eNK) as potential strategies for the treatment of bladder cancer. The anti-tumor effects of mono-treatment with reovirus type 3 Dearing strain (RC402 and RP116) and in combination with interleukin (IL)-18/-21-pretreated eNK cells were investigated on BCC lines (5637, HT-1376, and 253J-BV) using intravesical therapy to simulate in vitro model. RP116 and IL-18/-21-pretreated eNK cells exhibited effective cytotoxicity against grade 1 carcinoma (5637 cells) when used alone, but not against HT-1376 (grade 2 carcinoma) and 253J-BV cells (derived from a metastatic site). Notably, combining RP116 with IL-18/-21-pretreated eNK cells displayed effective cytotoxicity against both HT-1376 and 253J-BV cells. Our findings underscore the potential of a combination therapy using reoviruses and NK cells as a promising strategy for treating bladder cancer.
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Affiliation(s)
- Yuree Lim
- Department of Biopharmaceutical Convergence, Sungkyunkwan University (SKKU), Suwon, Korea
| | - Jeehun Park
- Department of Molecular Bioscience, College of Biomedical Science, Kangwon National University, Chuncheon, Korea
| | - Joung Eun Lim
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Minji Park
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, South Korea
| | - Seung Kwon Koh
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, South Korea
| | - Mijeong Lee
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, South Korea
| | - Sang-Ki Kim
- Department of Companion & Laboratory Animal Science, Kongju National University, Yesan, Korea
| | - Seung-Hwan Lee
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | | | - Dong Guk Park
- ViroCure Inc., Seoul, Republic of Korea
- Department of Surgery, School of Medicine, Dankook University, Cheonan, South Korea
| | - Hyun-Young Kim
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81, Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea
| | - Byong Chang Jeong
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, South Korea.
| | - Duck Cho
- Department of Biopharmaceutical Convergence, Sungkyunkwan University (SKKU), Suwon, Korea.
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, South Korea.
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81, Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea.
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Jung EK, Chu TH, Kim SA, Vo MC, Nguyen VT, Lee KH, Jung SH, Yoon M, Cho D, Lee JJ, Yoon TM. Efficacy of natural killer cell therapy combined with chemoradiotherapy in murine models of head and neck squamous cell carcinoma. Cytotherapy 2024; 26:242-251. [PMID: 38142382 DOI: 10.1016/j.jcyt.2023.11.002] [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: 04/22/2023] [Revised: 10/24/2023] [Accepted: 11/08/2023] [Indexed: 12/25/2023]
Abstract
BACKGROUND AIMS Natural killer (NK) cell-based cancer immunotherapy is effective when combined with other treatment modalities such as irradiation and chemotherapy. NK cell's antitumor function to treat solid tumor, including head and neck squamous cell carcinoma (HNSCC), has been targeted recently. This study assessed NK cell recruitment in response to chemoradiation therapy (CRT) in HNSCC. METHODS Ex vivo expansion of NK cell, flow cytometry, cell viability assay, cytotoxicity assay, immunohistochemistry, and animal model were performed. RESULTS Mouse NK cells were recruited to the tumor site by CRT in a nude mouse model. Furthermore, expanded and activated human NK cells (eNKs) were recruited to the tumor site in response to CRT, and CRT enhanced the anti-tumor activity of eNK in an NOD/SCID IL-2Rγnull mouse model. Various HNSCC cancer cell lines exhibited different NK cell ligand activation patterns in response to CRT that correlated with NK cell-mediated cytotoxicity. CONCLUSIONS Identifying the activation patterns of NK cell ligands during CRT might improve patient selection for adjuvant NK cell immunotherapy combined with CRT. This is the first study to investigate the NK cell's antitumor function and recruitment with CRT in HNSCC mouse model.
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Affiliation(s)
- Eun Kyung Jung
- Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School and Hwasun Hospital, Hwasun, Jeollanamdo, Korea
| | - Tan-Huy Chu
- Department of Hematology-Oncology, Chonnam National University Medical School and Hwasun Hospital, Hwasun, Jeollanamdo, Korea; Department of Hematology, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Vietnam
| | - Sun-Ae Kim
- Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School and Hwasun Hospital, Hwasun, Jeollanamdo, Korea
| | - Manh-Cuong Vo
- Department of Hematology-Oncology, Chonnam National University Medical School and Hwasun Hospital, Hwasun, Jeollanamdo, Korea
| | - Van-Tan Nguyen
- Department of Hematology-Oncology, Chonnam National University Medical School and Hwasun Hospital, Hwasun, Jeollanamdo, Korea
| | - Kyung-Hwa Lee
- Department of Pathology, Chonnam National University Medical School and Hwasun Hospital, Hwasun, Jeollanamdo, Korea
| | - Sung-Hoon Jung
- Department of Hematology-Oncology, Chonnam National University Medical School and Hwasun Hospital, Hwasun, Jeollanamdo, Korea
| | - Meesun Yoon
- Department of Radiation Oncology, Chonnam National University Medical School and Hwasun Hospital, Hwasun, Jeollanamdo, Korea
| | - Duck Cho
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Je-Jung Lee
- Department of Hematology-Oncology, Chonnam National University Medical School and Hwasun Hospital, Hwasun, Jeollanamdo, Korea.
| | - Tae Mi Yoon
- Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School and Hwasun Hospital, Hwasun, Jeollanamdo, Korea.
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Kim J, Phan MTT, Hwang I, Park J, Cho D. Comparison of the different anti-CD16 antibody clones in the activation and expansion of peripheral blood NK cells. Sci Rep 2023; 13:9493. [PMID: 37302991 DOI: 10.1038/s41598-023-36200-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 05/31/2023] [Indexed: 06/13/2023] Open
Abstract
Natural killer (NK) cells are promising tool for cancer treatment. Methods have been developed for large-scale NK cell expansion, including feeder cell-based methods or methods involving stimulation with NK cell activating signals, such as anti-CD16 antibodies. Different clones of anti-CD16 antibodies are available; however, a comprehensive comparison of their differential effects on inducing NK cell activation and expansion has not been conducted among these various clones under the same experimental conditions. Herein, we found that the NK cell expansion rate differed depending on the various anti-CD16 antibodies (CB16, 3G8, B73.1, and MEM-154) coated on microbeads when stimulated with genetically engineered feeder cells, K562‑membrane-bound IL‑18, and mbIL‑21 (K562‑mbIL‑18/-21). Only the CB16 clone combination caused enhanced NK cell expansion over K562‑mbIL‑18/-21 stimulation alone with similar NK cell functionality. Treatment with the CB16 clone once on the initial day of NK cell expansion was sufficient to maximize the combination effect. Overall, we developed a more enhanced NK expansion system by merging a feeder to effectively stimulate CD16 with the CB16 clone.
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Affiliation(s)
- Jinho Kim
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, Korea
| | - Minh-Trang Thi Phan
- Falcuty of Applied Technology, School of Technology, Van Lang University, Ho Chi Minh City, Vietnam
| | | | - Jeehun Park
- Soft Foundry Institute, Seoul National University, Seoul, Korea.
| | - Duck Cho
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, Korea.
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81, Irwon-Ro, Gangnam-Gu, Seoul, 06351, South Korea.
- Cell and Gene Therapy Institute (CGTI), Samsung Medical Center, Seoul, Korea.
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Ryu J, Choi J, Kim M, Cho YU, Hwang SH, Jang S, Park CJ. Suitability of EDTA-anticoagulated Blood for Natural Killer Cell Activity Testing Using Flow Cytometry. Ann Lab Med 2023; 43:307-309. [PMID: 36544345 PMCID: PMC9791016 DOI: 10.3343/alm.2023.43.3.307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/20/2022] [Accepted: 10/24/2022] [Indexed: 12/24/2022] Open
Affiliation(s)
- Jeayeon Ryu
- Department of Laboratory Medicine, Asan Medical Center, Seoul, Korea,Department of Laboratory Medicine, University of Ulsan College of Medicine, Seoul, Korea
| | - Jihyun Choi
- Department of Laboratory Medicine, Asan Medical Center, Seoul, Korea
| | - Miyoung Kim
- Department of Laboratory Medicine, Asan Medical Center, Seoul, Korea,Department of Laboratory Medicine, University of Ulsan College of Medicine, Seoul, Korea,Corresponding author: Miyoung Kim, Ph.D. Department of Laboratory Medicine, Asan Medical Centre, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea Tel: +82-2-3010-4498, Fax: +82-2-478-0884 E-mail:
| | - Young-Uk Cho
- Department of Laboratory Medicine, Asan Medical Center, Seoul, Korea,Department of Laboratory Medicine, University of Ulsan College of Medicine, Seoul, Korea
| | - Sang-Hyun Hwang
- Department of Laboratory Medicine, Asan Medical Center, Seoul, Korea,Department of Laboratory Medicine, University of Ulsan College of Medicine, Seoul, Korea
| | - Seongsoo Jang
- Department of Laboratory Medicine, Asan Medical Center, Seoul, Korea,Department of Laboratory Medicine, University of Ulsan College of Medicine, Seoul, Korea
| | - Chan-Jeoung Park
- Department of Laboratory Medicine, Asan Medical Center, Seoul, Korea,Department of Laboratory Medicine, University of Ulsan College of Medicine, Seoul, Korea
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Kim S. Ex Vivo Expansion of Highly Cytotoxic Natural Killer Cells Using Optimal Culture Medium. Ann Lab Med 2022; 42:619-620. [PMID: 35765869 DOI: 10.3343/alm.2022.42.6.619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Seokho Kim
- Department of Medicinal Biotechnology, College of Health Science, Dong-A University, Busan, Korea
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Multifaceted characterization of the biological and transcriptomic signatures of natural killer cells derived from cord blood and placental blood. Cancer Cell Int 2022; 22:291. [PMID: 36153574 PMCID: PMC9508758 DOI: 10.1186/s12935-022-02697-6] [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: 05/10/2022] [Accepted: 09/01/2022] [Indexed: 12/02/2022] Open
Abstract
Background Perinatal blood including umbilical cord blood and placental blood are splendid sources for allogeneic NK cell generation with high cytotoxicity of combating pathogenic microorganism and malignant tumor. Despite the generation of NK cells from the aforementioned perinatal blood, yet the systematical and detailed information of the biological and transcriptomic signatures of UC-NKs and P-NKs before large-scale clinical applications in disease remodeling is still largely obscure. Methods Herein, we took advantage of the “3IL”-based strategy for high-efficient generation of NK cells from umbilical cord blood and placental blood (UC-NKs and P-NKs), respectively. On the one hand, we conducted flow cytometry (FCM) assay and coculture to evaluate the subpopulations, cellular vitality and cytotoxic activity of the aforementioned NK cells. On the other hand, with the aid of RNA-SEQ and multiple bioinformatics analyses, we further dissected the potential diversities of UC-NKs and P-NKs from the perspectives of transcriptomes. Results On the basis of the “3IL” strategy, high-efficient NKs were generated from mononuclear cells (MNCs) in perinatal blood. P-NKs revealed comparable ex vivo expansion but preferable activation and cytotoxicity upon K562 cells over UC-NKs. Both of the two NKs showed diversity in cellular vitality and transcriptome including apoptotic cells, cell cycle, gene expression profiling and the accompanied multifaceted biological processes. Conclusions Our data revealed the multifaceted similarities and differences of UC-NKs and P-NKs both at the cellular and molecular levels. Our findings supply new references for allogeneic NK cell-based immunotherapy in regenerative medicine and will benefit the further exploration for illuminating the underlying mechanism as well. Supplementary Information The online version contains supplementary material available at 10.1186/s12935-022-02697-6.
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Phan MTT, Kim J, Koh SK, Lim Y, Yu H, Lee M, Lee JM, Kang ES, Kim HY, Kim SK, Hwang I, Cho D. Selective Expansion of NKG2C+ Adaptive NK Cells Using K562 Cells Expressing HLA-E. Int J Mol Sci 2022; 23:ijms23169426. [PMID: 36012691 PMCID: PMC9409060 DOI: 10.3390/ijms23169426] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/09/2022] [Accepted: 08/18/2022] [Indexed: 11/29/2022] Open
Abstract
Adaptive natural killer (NK) cells expressing self-specific inhibitory killer-cell immunoglobulin-like receptors (KIRs) can be expanded in vivo in response to human cytomegalovirus (HCMV) infection. Developing a method to preferentially expand this subset is essential for effective targeting of allogeneic cancer cells. A previous study developed an in vitro method to generate single KIR+ NK cells for enhanced targeting of the primary acute lymphoblastic leukemia cells; however, the expansion rate was quite low. Here, we present an effective expansion method using genetically modified K562-HLA-E feeder cells for long-term proliferation of adaptive NK cells displaying highly differentiated phenotype and comparable cytotoxicity, CD107a, and interferon-γ (IFN-γ) production. More importantly, our expansion method achieved more than a 10,000-fold expansion of adaptive NK cells after 6 weeks of culture, providing a high yield of alloreactive NK cells for cell therapy against cancer.
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Affiliation(s)
- Minh-Trang Thi Phan
- Cell and Gene Therapy Institute (CGTI), Samsung Medical Center, Seoul 06351, Korea
| | - Jinho Kim
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06355, Korea
| | - Seung Kwon Koh
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06355, Korea
| | - Yuree Lim
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Korea
| | - Hongbi Yu
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06355, Korea
| | - Mijeong Lee
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06355, Korea
| | - Jong-Min Lee
- Bio Research Center, Lugensci Co., Ltd., Bucheon 14556, Korea
| | - Eun-Suk Kang
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
| | - Hyun-Young Kim
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
| | - Sang-Ki Kim
- Department of Companion and Laboratory Animal Science, Kongju National University, Yesan 32439, Korea
| | - Ilwoong Hwang
- Department of Emergency Medicine, Soonchunhyang University Gumi Hospital, Gumi 39371, Korea
- Correspondence: (I.H.); (D.C.)
| | - Duck Cho
- Cell and Gene Therapy Institute (CGTI), Samsung Medical Center, Seoul 06351, Korea
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06355, Korea
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Korea
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
- Correspondence: (I.H.); (D.C.)
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