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Schutti O, Klauer L, Baudrexler T, Burkert F, Schmohl J, Hentrich M, Bojko P, Kraemer D, Rank A, Schmid C, Schmetzer H. Effective and Successful Quantification of Leukemia-Specific Immune Cells in AML Patients' Blood or Culture, Focusing on Intracellular Cytokine and Degranulation Assays. Int J Mol Sci 2024; 25:6983. [PMID: 39000091 PMCID: PMC11241621 DOI: 10.3390/ijms25136983] [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: 02/12/2024] [Revised: 05/09/2024] [Accepted: 05/12/2024] [Indexed: 07/16/2024] Open
Abstract
Novel (immune) therapies are needed to stabilize remissions or the disease in AML. Leukemia derived dendritic cells (DCleu) can be generated ex vivo from AML patients' blasts in whole blood using approved drugs (GM-CSF and PGE-1 (Kit M)). After T cell enriched, mixed lymphocyte culture (MLC) with Kit M pretreated (vs. untreated WB), anti-leukemically directed immune cells of the adaptive and innate immune systems were already shown to be significantly increased. We evaluated (1) the use of leukemia-specific assays [intracellular cytokine production of INFy, TNFa (INCYT), and degranulation detected by CD107a (DEG)] for a detailed quantification of leukemia-specific cells and (2), in addition, the correlation with functional cytotoxicity and patients' clinical data in Kit M-treated vs. not pretreated settings. We collected whole blood (WB) samples from 26 AML patients at first diagnosis, during persisting disease, or at relapse after allogeneic stem cell transplantation (SCT), and from 18 healthy volunteers. WB samples were treated with or without Kit M to generate DC/DCleu. After MLC with Kit M-treated vs. untreated WB antigen-specific/anti-leukemic effects were assessed through INCYT, DEG, and a cytotoxicity fluorolysis assay. The quantification of cell subtypes was performed via flow cytometry. Our study showed: (1) low frequencies of leukemia-specific cells (subtypes) detectable in AML patients' blood. (2) Significantly higher frequencies of (mature) DCleu generable without induction of blast proliferation in Kit M-treated vs. untreated samples. (3) Significant increase in frequencies of immunoreactive cells (e.g., non-naive T cells, Tprol) as well as in INCYT/DEG ASSAYS leukemia-specific adaptive-(e.g., B, T(memory)) or innate immune cells (e.g., NK, CIK) after MLC with Kit M-treated vs. untreated WB. The results of the intracellular production of INFy and TNFa were comparable. The cytotoxicity fluorolysis assay revealed significantly enhanced blast lysis in Kit M-treated vs. untreated WB. Significant correlations could be shown between induced leukemia-specific cells from several lines and improved blast lysis. We successfully detected and quantified immunoreactive cells at a single-cell level using the functional assays (DEG, INCYT, and CTX). We could quantify leukemia-specific subtypes in uncultured WB as well as after MLC and evaluate the impact of Kit M pretreated (DC/DCleu-containing) WB on the provision of leukemia-specific immune cells. Kit M pretreatment (vs. no pretreatment) was shown to significantly increase leukemia-specific IFNy and TNFa producing, degranulating cells and to improve blast-cytotoxicity after MLC. In vivo treatment of AML patients with Kit M may lead to anti-leukemic effects and contribute to stabilizing the disease or remissions. INCYT and DEG assays qualify to quantify potentially leukemia-specific cells on a single cell level and to predict the clinical course of patients under treatment.
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Affiliation(s)
- Olga Schutti
- Department for Hematopoetic Cell Transplantation, Med. III, University Hospital of Munich, 81377 Munich, Germany; (O.S.)
- Bavarian Cancer Research Center (BZKF), Comprehensive Cancer Center at University Hospital of Augsburg, 86156 Augsburg, Germany
| | - Lara Klauer
- Department for Hematopoetic Cell Transplantation, Med. III, University Hospital of Munich, 81377 Munich, Germany; (O.S.)
- Bavarian Cancer Research Center (BZKF), Comprehensive Cancer Center at University Hospital of Augsburg, 86156 Augsburg, Germany
| | - Tobias Baudrexler
- Department for Hematopoetic Cell Transplantation, Med. III, University Hospital of Munich, 81377 Munich, Germany; (O.S.)
- Bavarian Cancer Research Center (BZKF), Comprehensive Cancer Center at University Hospital of Augsburg, 86156 Augsburg, Germany
| | - Florian Burkert
- Department for Hematopoetic Cell Transplantation, Med. III, University Hospital of Munich, 81377 Munich, Germany; (O.S.)
- Bavarian Cancer Research Center (BZKF), Comprehensive Cancer Center at University Hospital of Augsburg, 86156 Augsburg, Germany
| | - Joerg Schmohl
- Department of Haematology and Oncology, University Hospital of Tuebingen, 72076 Tuebingen, Germany
| | - Marcus Hentrich
- Department of Haematology and Oncology, Red Cross Hospital of Munich, 80634 Munich, Germany
| | - Peter Bojko
- Department of Haematology and Oncology, Red Cross Hospital of Munich, 80634 Munich, Germany
| | - Doris Kraemer
- Department of Heamatology and Oncology, St.-Josefs-Hospital Hagen, 58097 Hagen, Germany
| | - Andreas Rank
- Bavarian Cancer Research Center (BZKF), Comprehensive Cancer Center at University Hospital of Augsburg, 86156 Augsburg, Germany
- Department of Haematology and Oncology, University Hospital of Augsburg, 86156 Augsburg, Germany
| | - Christoph Schmid
- Bavarian Cancer Research Center (BZKF), Comprehensive Cancer Center at University Hospital of Augsburg, 86156 Augsburg, Germany
- Department of Haematology and Oncology, University Hospital of Augsburg, 86156 Augsburg, Germany
| | - Helga Schmetzer
- Department for Hematopoetic Cell Transplantation, Med. III, University Hospital of Munich, 81377 Munich, Germany; (O.S.)
- Bavarian Cancer Research Center (BZKF), Comprehensive Cancer Center at University Hospital of Augsburg, 86156 Augsburg, Germany
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Motallebzadeh Khanmiri J, Alizadeh M, Esmaeili S, Gholami Z, Safarzadeh A, Khani-Eshratabadi M, Baghbanzadeh A, Alizadeh N, Baradaran B. Dendritic cell vaccination strategy for the treatment of acute myeloid leukemia: a systematic review. Cytotherapy 2024; 26:427-435. [PMID: 38483358 DOI: 10.1016/j.jcyt.2024.02.009] [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: 09/03/2023] [Revised: 02/06/2024] [Accepted: 02/13/2024] [Indexed: 05/04/2024]
Abstract
BACKGROUND AIMS Acute myeloid leukemia (AML) is classified as a hematologic malignancy characterized by the proliferation of immature blood cells within the bone marrow (BM), resulting in an aberrant and unregulated cellular growth. The primary therapeutic modalities for AML include chemotherapy and hematopoietic stem cell transplantation. However, it is important to note that these treatments are accompanied by important adverse effects and mortality rates. Therefore, the need for more effective treatment options seems necessary, and dendritic cell (DC) vaccine therapy can be one of these options. In this study, we aim to investigate the effectiveness of DC vaccination therapy for the management of AML. METHODS PubMed, Scopus, ProQuest, Web of Science, and Google Scholar databases were searched for this systematic review. The articles were evaluated based on the inclusion criteria of this study and initially compared in terms of titles or abstracts. Finally, the articles related to the topic of this review were obtained in full text. The complete remission and partial remission, survival, correlative immune assays, and health-related metrics were used to evaluate this cellular immunotherapy effectiveness. The quality of the studies was assessed independently using the Cochrane risk-of-bias tools. The compiled data were input into a standard Excel spreadsheet. Each domain was evaluated as having either a "low risk," "high risk," or "unclear risk" of bias. RESULTS Among the 3986 studies that were determined, a total of 11 correlated trials were selected for inclusion in this systematic review. DC vaccine therapy was effective in inducing complete and partial remission, and stabilization of the disease. Additionally, it was discovered that the treatment strengthened the immune system as seen by increased levels of CD4+ and CD8+ T cells, Th1 cytokines, WT1-specific T cells, and activated NK cells. CONCLUSION We conducted a systematic review that supports the use of DC vaccine therapy as an effective treatment for AML. The therapy demonstrated potentials in achieving remission, enhancing the immune system function, and increasing overall survival. However, more studies are required to improve the methods of preparing and delivering the DC vaccine, and to confirm its long-term safety and effectiveness.
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Affiliation(s)
- Jamal Motallebzadeh Khanmiri
- Department of Hematology and Blood Transfusion, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohsen Alizadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sina Esmaeili
- Student Research Committee, Shahed University, Tehran, Iran
| | - Zeinab Gholami
- Faculty of Medicine, University of Medical Sciences, Tabriz, Iran
| | - Ali Safarzadeh
- Department of Biology, University of Padova, Padova, Italy
| | | | - Amir Baghbanzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nazila Alizadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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Palomares F, Pina A, Dakhaoui H, Leiva-Castro C, Munera-Rodriguez AM, Cejudo-Guillen M, Granados B, Alba G, Santa-Maria C, Sobrino F, Lopez-Enriquez S. Dendritic Cells as a Therapeutic Strategy in Acute Myeloid Leukemia: Vaccines. Vaccines (Basel) 2024; 12:165. [PMID: 38400148 PMCID: PMC10891551 DOI: 10.3390/vaccines12020165] [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: 12/16/2023] [Revised: 01/11/2024] [Accepted: 02/04/2024] [Indexed: 02/25/2024] Open
Abstract
Dendritic cells (DCs) serve as professional antigen-presenting cells (APC) bridging innate and adaptive immunity, playing an essential role in triggering specific cellular and humoral responses against tumor and infectious antigens. Consequently, various DC-based antitumor therapeutic strategies have been developed, particularly vaccines, and have been intensively investigated specifically in the context of acute myeloid leukemia (AML). This hematological malignancy mainly affects the elderly population (those aged over 65), which usually presents a high rate of therapeutic failure and an unfavorable prognosis. In this review, we examine the current state of development and progress of vaccines in AML. The findings evidence the possible administration of DC-based vaccines as an adjuvant treatment in AML following initial therapy. Furthermore, the therapy demonstrates promising outcomes in preventing or delaying tumor relapse and exhibits synergistic effects when combined with other treatments during relapses or disease progression. On the other hand, the remarkable success observed with RNA vaccines for COVID-19, delivered in lipid nanoparticles, has revealed the efficacy and effectiveness of these types of vectors, prompting further exploration and their potential application in AML, as well as other neoplasms, loading them with tumor RNA.
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Affiliation(s)
- Francisca Palomares
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, University of Seville, Av. Sanchez Pizjuan s/n, 41009 Seville, Spain; (A.P.); (H.D.); (C.L.-C.); (A.M.M.-R.); (G.A.); (F.S.)
- Institute of Biomedicine of Seville (IBiS) HUVR/CSIC/University of Seville, Avda. Manuel Siurot s/n, 41013 Seville, Spain;
| | - Alejandra Pina
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, University of Seville, Av. Sanchez Pizjuan s/n, 41009 Seville, Spain; (A.P.); (H.D.); (C.L.-C.); (A.M.M.-R.); (G.A.); (F.S.)
| | - Hala Dakhaoui
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, University of Seville, Av. Sanchez Pizjuan s/n, 41009 Seville, Spain; (A.P.); (H.D.); (C.L.-C.); (A.M.M.-R.); (G.A.); (F.S.)
| | - Camila Leiva-Castro
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, University of Seville, Av. Sanchez Pizjuan s/n, 41009 Seville, Spain; (A.P.); (H.D.); (C.L.-C.); (A.M.M.-R.); (G.A.); (F.S.)
| | - Ana M. Munera-Rodriguez
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, University of Seville, Av. Sanchez Pizjuan s/n, 41009 Seville, Spain; (A.P.); (H.D.); (C.L.-C.); (A.M.M.-R.); (G.A.); (F.S.)
| | - Marta Cejudo-Guillen
- Institute of Biomedicine of Seville (IBiS) HUVR/CSIC/University of Seville, Avda. Manuel Siurot s/n, 41013 Seville, Spain;
- Department of Pharmacology, Pediatry, and Radiology, School of Medicine, University of Seville, Av. Sanchez Pizjuan s/n, 41009 Seville, Spain
| | - Beatriz Granados
- Distrito Sanitario de Atención Primaria Málaga, Sistema Sanitario Público de Andalucía, 29004 Malaga, Spain;
| | - Gonzalo Alba
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, University of Seville, Av. Sanchez Pizjuan s/n, 41009 Seville, Spain; (A.P.); (H.D.); (C.L.-C.); (A.M.M.-R.); (G.A.); (F.S.)
| | - Consuelo Santa-Maria
- Department of Biochemistry and Molecular Biology, School of Pharmacy, University of Seville, 41012 Seville, Spain;
| | - Francisco Sobrino
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, University of Seville, Av. Sanchez Pizjuan s/n, 41009 Seville, Spain; (A.P.); (H.D.); (C.L.-C.); (A.M.M.-R.); (G.A.); (F.S.)
| | - Soledad Lopez-Enriquez
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, University of Seville, Av. Sanchez Pizjuan s/n, 41009 Seville, Spain; (A.P.); (H.D.); (C.L.-C.); (A.M.M.-R.); (G.A.); (F.S.)
- Institute of Biomedicine of Seville (IBiS) HUVR/CSIC/University of Seville, Avda. Manuel Siurot s/n, 41013 Seville, Spain;
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Li P, Jia L, Bian X, Tan S. Application of Engineered Dendritic Cell Vaccines in Cancer Immunotherapy: Challenges and Opportunities. Curr Treat Options Oncol 2023; 24:1703-1719. [PMID: 37962824 DOI: 10.1007/s11864-023-01143-7] [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] [Accepted: 10/02/2023] [Indexed: 11/15/2023]
Abstract
OPINION STATEMENT The primary objective of this study is to evaluate the effectiveness of cancer vaccines containing genetically modified dendritic cells (DCs) in inducing transformational immune responses. This paper sheds considerable light on DCs' function in advancing treatment techniques. This objective is achieved by thoroughly analyzing the many facets of DCs and their strategic integration into cancer treatment. Due to their role as immune response regulators, DCs can potentially enhance cancer treatment strategies. DCs have the potential to revolutionize immunotherapy, as shown by a comprehensive analysis of their numerous characteristics. The review deftly transitions from examining the fundamentals of preclinical research to delving into the complexities of clinical implementation while acknowledging the inherent challenges in translating DC vaccine concepts into tangible progress. The analysis also emphasizes the potential synergistic outcomes that can be achieved by combining DC vaccines with established pharmaceuticals, thereby emphasizing the importance of employing a holistic approach to enhance treatment efficacy. Despite the existence of transformative opportunities, advancement is hindered by several obstacles. The exhaustive analysis of technical complexities, regulatory dynamics, and upcoming challenges provides valuable insights for overcoming obstacles requiring strategic navigation to incorporate DC vaccines successfully. This document provides a comprehensive analysis of the developments in DC-based immunotherapy, concentrating on its potential to transform cancer therapy radically.
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Affiliation(s)
- Ping Li
- Center of Reproductive Medicine, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Linan Jia
- Department of Urology, Shengjing Hospital of China Medical University, No.36 Sanhao Street, Heping District, Shenyang, 110004, China
| | - Xiaobo Bian
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang110004, China
| | - Shutao Tan
- Department of Urology, Shengjing Hospital of China Medical University, No.36 Sanhao Street, Heping District, Shenyang, 110004, China.
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5
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Ferreira AG, Zimmermannova O, Kurochkin I, Ascic E, Åkerström F, Pereira CF. Reprogramming Cancer Cells to Antigen-presenting Cells. Bio Protoc 2023; 13:e4881. [PMID: 38023788 PMCID: PMC10665638 DOI: 10.21769/bioprotoc.4881] [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: 05/05/2023] [Revised: 09/21/2023] [Accepted: 09/27/2023] [Indexed: 12/01/2023] Open
Abstract
Cancer cells evade the immune system by downregulating antigen presentation. Although immune checkpoint inhibitors (ICI) and adoptive T-cell therapies revolutionized cancer treatment, their efficacy relies on the intrinsic immunogenicity of tumor cells and antigen presentation by dendritic cells. Here, we describe a protocol to directly reprogram murine and human cancer cells into tumor-antigen-presenting cells (tumor-APCs), using the type 1 conventional dendritic cell (cDC1) transcription factors PU.1, IRF8, and BATF3 delivered by a lentiviral vector. Tumor-APCs acquire a cDC1 cell-like phenotype, transcriptional and epigenetic programs, and function within nine days (Zimmermannova et al., 2023). Tumor-APCs express the hematopoietic marker CD45 and acquire the antigen presentation complexes MHC class I and II as well as co-stimulatory molecules required for antigen presentation to T cells, but do not express high levels of negative immune checkpoint regulators. Enriched tumor-APCs present antigens to Naïve CD8+ and CD4+ T cells, are targeted by activated cytotoxic T lymphocytes, and elicit anti-tumor responses in vivo. The tumor-APC reprogramming protocol described here provides a simple and robust method to revert tumor evasion mechanisms by increasing antigen presentation in cancer cells. This platform has the potential to prime antigen-specific T-cell expansion, which can be leveraged for developing new cancer vaccines, neoantigen discovery, and expansion of tumor-infiltrating lymphocytes. Key features • This protocol describes the generation of antigen-presenting cells from cancer cells by direct reprogramming using lineage-instructive transcription factors of conventional dendritic cells type I. • Verification of reprogramming efficiency by flow cytometry and functional assessment of tumor-APCs by antigen presentation assays.
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Affiliation(s)
- Alexandra G. Ferreira
- Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University, Lund, Sweden
- Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
- CNC—Center for Neuroscience and Cell Biology, University of Coimbra, Largo Marquês de Pombal, Coimbra, Portugal
- Doctoral Program in Experimental Biology and Biomedicine, University of Coimbra, Largo Marquês de Pombal, Coimbra, Portugal
| | - Olga Zimmermannova
- Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University, Lund, Sweden
- Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
| | - Ilia Kurochkin
- Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University, Lund, Sweden
- Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
| | - Ervin Ascic
- Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University, Lund, Sweden
- Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
| | | | - Carlos-Filipe Pereira
- Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University, Lund, Sweden
- Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
- CNC—Center for Neuroscience and Cell Biology, University of Coimbra, Largo Marquês de Pombal, Coimbra, Portugal
- Asgard Therapeutics AB, Medicon Village, Lund, Sweden
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Baudrexler T, Boeselt T, Li L, Bohlscheid S, Boas U, Schmid C, Rank A, Schmohl J, Koczulla R, Schmetzer HM. Volatile Phases Derived from Serum, DC, or MLC Culture Supernatants to Deduce a VOC-Based Diagnostic Profiling Strategy for Leukemic Diseases. Biomolecules 2023; 13:989. [PMID: 37371569 DOI: 10.3390/biom13060989] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 05/29/2023] [Accepted: 05/31/2023] [Indexed: 06/29/2023] Open
Abstract
Volatile organic compounds (VOCs) reflect the metabolism in healthy and pathological conditions, and can be collected easily in a noninvasive manner. They are directly measured using electronical nose (eNose), and may qualify as a systemic tool to monitor biomarkers related to disease. Myeloid leukemic blasts can be transformed into leukemia-derived dendritic cells (DCleu) able to improve (anti-leukemic) immune responses. To profile immunological changes in healthy and acute myeloid leukemic (AML) patients' ex vivo cell cultures, we correlated the cell biological data with the profiles of cell culture supernatant-derived VOCs. DC/DCleu from leukemic or healthy whole blood (WB) were generated without (Control) or with immunomodulatory Kit M (Granulocyte macrophage-colony-stimulating-factor (GM-CSF) + prostaglandin E1 (PGE1)) in dendritic cell cultures (DC culture). Kit-pretreated/not pretreated WB was used to stimulate T cell-enriched immunoreactive cells in mixed lymphocyte cultures (MLC culture). Leukemia-specific adaptive and innate immune cells were detected with a degranulation assay (Deg) and an intracellular cytokine assay (InCyt). Anti-leukemic cytotoxicity was explored with a cytotoxicity fluorolysis assay (CTX). VOCs collected from serum or DC- and MLC culture supernatants (with vs. without Kit M pretreatment and before vs. after culture) were measured using eNose. Compared to the Control (without treatment), Kit M-pretreated leukemic and healthy WB gave rise to higher frequencies of mature (leukemia-derived) DC subtypes of activated and (memory) T cells after MLC. Moreover, antigen (leukemia)-specific cells of several lines (innate and adaptive immunity cells) were induced, giving rise to blast-lysing cells. The eNose could significantly distinguish between healthy and leukemic patients' serum, DC and MLC culture supernatant-derived volatile phases and could significantly separate several supernatant (with vs. without Kit M treatment, cultured vs. uncultured)-derived VOCs within subgroups (healthy DC or leukemic DC, or healthy MLC or leukemic MLC supernatants). Interestingly, the eNose could indicate a Kit M- and culture-associated effect. The eNose may be a prospective option for the deduction of a VOC-based profiling strategy using serum or cell culture supernatants and could be a useful diagnostic tool to recognize or qualify AML disease.
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Affiliation(s)
- Tobias Baudrexler
- Medical Department III, Hospital Großhadern, Ludwig-Maximilians-University, 81377 Munich, Germany
| | - Tobias Boeselt
- Department of Pulmonary Rehabilitation, German Center for Lung Research (DZL), Phillipps-University of Marburg, 35043 Marburg, Germany
| | - Lin Li
- Medical Department III, Hospital Großhadern, Ludwig-Maximilians-University, 81377 Munich, Germany
| | - Sophia Bohlscheid
- Medical Department III, Hospital Großhadern, Ludwig-Maximilians-University, 81377 Munich, Germany
| | - Ursel Boas
- Department of Pulmonary Rehabilitation, German Center for Lung Research (DZL), Phillipps-University of Marburg, 35043 Marburg, Germany
| | - Christoph Schmid
- Department of Hematology and Oncology, University Hospital of Augsburg, 86156 Augsburg, Germany
| | - Andreas Rank
- Department of Hematology and Oncology, University Hospital of Augsburg, 86156 Augsburg, Germany
| | - Jörg Schmohl
- Department of Hematology and Oncology, Diaconia Hospital Stuttgart, 70176 Stuttgart, Germany
| | - Rembert Koczulla
- Department of Pulmonary Rehabilitation, German Center for Lung Research (DZL), Phillipps-University of Marburg, 35043 Marburg, Germany
| | - Helga Maria Schmetzer
- Medical Department III, Hospital Großhadern, Ludwig-Maximilians-University, 81377 Munich, Germany
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Dendritic Cell-Triggered Immune Activation Goes along with Provision of (Leukemia-Specific) Integrin Beta 7-Expressing Immune Cells and Improved Antileukemic Processes. Int J Mol Sci 2022; 24:ijms24010463. [PMID: 36613907 PMCID: PMC9820538 DOI: 10.3390/ijms24010463] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 12/19/2022] [Accepted: 12/21/2022] [Indexed: 12/29/2022] Open
Abstract
Integrin beta 7 (β7), a subunit of the integrin receptor, is expressed on the surface of immune cells and mediates cell-cell adhesions and interactions, e.g., antitumor or autoimmune reactions. Here, we analyzed, whether the stimulation of immune cells by dendritic cells (of leukemic derivation in AML patients or of monocyte derivation in healthy donors) leads to increased/leukemia-specific β7 expression in immune cells after T-cell-enriched mixed lymphocyte culture-finally leading to improved antileukemic cytotoxicity. Healthy, as well as AML and MDS patients' whole blood (WB) was treated with Kit-M (granulocyte-macrophage colony-stimulating factor (GM-CSF) + prostaglandin E1 (PGE1)) or Kit-I (GM-CSF + Picibanil) in order to generate DCs (DCleu or monocyte-derived DC), which were then used as stimulator cells in MLC. To quantify antigen/leukemia-specific/antileukemic functionality, a degranulation assay (DEG), an intracellular cytokine assay (INTCYT) and a cytotoxicity fluorolysis assay (CTX) were used. (Leukemia-specific) cell subtypes were quantified via flow cytometry. The Kit treatment of WB (compared to the control) resulted in the generation of DC/DCleu, which induced increased activation of innate and adaptive cells after MLC. Kit-pretreated WB (vs. the control) led to significantly increased frequencies of β7-expressing T-cells, degranulating and intracellular cytokine-producing β7-expressing immune cells and, in patients' samples, increased blast lysis. Positive correlations were found between the Kit-M-mediated improvement of blast lysis (vs. the control) and frequencies of β7-expressing T-cells. Our findings indicate that DC-based immune therapies might be able to specifically activate the immune system against blasts going along with increased frequencies of (leukemia-specific) β7-expressing immune cells. Furthermore, β7 might qualify as a predictor for the efficiency and the success of AML and/or MDS therapies.
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Generation of Leukaemia-Derived Dendritic Cells (DCleu) to Improve Anti-Leukaemic Activity in AML: Selection of the Most Efficient Response Modifier Combinations. Int J Mol Sci 2022; 23:ijms23158333. [PMID: 35955486 PMCID: PMC9368668 DOI: 10.3390/ijms23158333] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/18/2022] [Accepted: 07/23/2022] [Indexed: 11/17/2022] Open
Abstract
Dendritic cells (DC) and leukaemia derived DC (DCleu) are potent stimulators of anti-leukaemic activity in acute myeloid leukaemia (AML) and can be generated from mononuclear cells in vitro following standard DC/DCleu-generating protocols. With respect to future clinical applications though, DC/DCleu-generating protocols specifically designed for application in a whole-blood-(WB)-environment must be established. Therefore, we developed ten new DC/DCleu-generating protocols (kits; Kit-A/-C/-D/-E/-F/-G/-H/-I/-K/-M) for the generation of DC/DCleu from leukaemic WB, containing calcium-ionophore, granulocyte-macrophage-colony-stimulating-factor (GM-CSF), tumour-necrosis-factor-alpha, prostaglandin-E1 (PGE1), prostaglandin-E2 (PGE2) and/or picibanil (OK-432). All protocols were evaluated regarding their performance in generating DC/DCleu using refined classification and/or ranking systems; DC/DCleu were evaluated regarding their performance in stimulating anti-leukaemic activity using a cytotoxicity fluorolysis assay. Overall, we found the new kits capable to generate (mature) DC/DCleu from leukaemic WB. Through refined classification and ranking systems, we were able to select Kit-I (GM-CSF + OK-432), -K (GM-CSF + PGE2) and -M (GM-CSF + PGE1) as the most efficient kits in generating (mature) DC/DCleu, which are further competent to stimulate immunoreactive cells to show an improved anti-leukaemic cytotoxicity as well. This great performance of Kit-I, -K and -M in mediating DC/DCleu-based anti-leukaemic immunity in a WB-environment in vitro constitutes an important and directive step for translating DC/DCleu-based immunotherapy of AML into clinical application.
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Ding J, Zheng Y, Wang G, Zheng J, Chai D. The performance and perspectives of dendritic cell vaccines modified by immune checkpoint inhibitors or stimulants. Biochim Biophys Acta Rev Cancer 2022; 1877:188763. [PMID: 35872287 DOI: 10.1016/j.bbcan.2022.188763] [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: 04/28/2022] [Revised: 07/05/2022] [Accepted: 07/18/2022] [Indexed: 11/30/2022]
Abstract
Therapeutic dendritic cell (DC) vaccines stimulate the elimination of tumor cells by the immune system. However, while antigen-specific T cell responses induced by DC vaccines are commonly observed, the clinical response rate is relatively poor, necessitating vaccine optimization. There is evidence that the suppression of DC function by immune checkpoints hinders the anti-tumor immune responses mediated by DC vaccines, ultimately leading to the immune escape of the tumor cells. The use of immune checkpoint inhibitors (ICIs) and immune checkpoint activators (ICAs) has extended the immunotherapeutic range. It is known that both inhibitory and stimulatory checkpoint molecules are expressed by most DC subsets and can thus be used to manipulate the effectiveness of DC vaccines. Such manipulation has been investigated using strategies such as chemotherapy, agonistic or antagonistic antibodies, siRNA, shRNA, CRISPR-Cas9, soluble antibodies, lentiviruses, and adenoviruses to maximize the efficacy of DC vaccines. Thus, a deeper understanding of immune checkpoints may assist in the development of improved DC vaccines. Here, we review the actions of various ICIs or ICAs shown by preclinical studies, as well as their potential application in DC vaccines. New therapeutic interventional strategies for blocking and stimulating immune checkpoint molecules in DCs are also described in detail.
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Affiliation(s)
- Jiage Ding
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, PR China; Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, PR China
| | - Yanyan Zheng
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, PR China; Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, PR China
| | - Gang Wang
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, PR China; Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, PR China; Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, PR China.
| | - Junnian Zheng
- Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, PR China; Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, PR China.
| | - Dafei Chai
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, PR China; Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, PR China; Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, PR China.
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10
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Plett C, Klauer LK, Amberger DC, Ugur S, Rabe A, Stankova Z, Deen D, Hirn-Lopez A, Gunsilius C, Werner JO, Schmohl J, Krämer D, Rank A, Schmid C, Schmetzer HM. Immunomodulatory kits generating leukaemia derived dendritic cells do not induce blast proliferation ex vivo: IPO-38 as a novel marker to quantify proliferating blasts in acute myeloid leukaemia. Clin Immunol 2022; 242:109083. [DOI: 10.1016/j.clim.2022.109083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 07/23/2022] [Accepted: 07/25/2022] [Indexed: 11/28/2022]
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11
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Leukemia derived dendritic cell (DC leu) mediated immune response goes along with reduced (leukemia-specific) regulatory T-cells. Immunobiology 2022; 227:152237. [PMID: 35749805 DOI: 10.1016/j.imbio.2022.152237] [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: 10/25/2021] [Revised: 05/18/2022] [Accepted: 06/07/2022] [Indexed: 12/17/2022]
Abstract
The blastmodulatory Kit-M, composed of granulocyte-macrophage colony-stimulating-factor (GM-CSF) and Prostaglandin E1 (PGE1), is known to convert myeloid leukaemic blasts (from AML patients) into leukaemia derived dendritic cells (DCleu), which activate immunoreactive cells to gain antileukemic/leukaemia-specific activity. In this study we had a special focus on the influence of Kit-M treated, DC/DCleu containing patients'whole blood (WB, n = 16) on the provision of immunosuppressive regulatory T-cells. We could confirm that Kit-M significantly increased frequencies of (mature) dendritic cells (DC) and DCleu from leukemic whole blood (WB) without induction of blast proliferation. After mixed lymphocyte culture (MLC) with patients' T-cells we confirmed that DCleu mediated leukemia-specific responses- going along with activated and leukemia-specific T- and NK-cells in an intracellular cytokine staining assay (ICS) and a degranulation assay (Deg)- resulted in an increased anti-leukemic cytotoxicity (Cytotoxicity Fluorolysis Assay = CTX). We could demonstrate that (leukemia-specific) CD4+ and CD8+ regulatory T-cell population (Treg) decreased significantly after MLC compared to controls. We found significant positive correlations of leukemia-specific CD3+CD4+ cells with frequencies of (mature) DCleu. Achieved anti-leukemic cytotoxicity correlated significantly positive with leukemia-specific CD3+CD8+ cells and significantly negatively with (leukemia-specific) Treg. In summary we demonstrate that immunesuppressive (leukemia-specific) regulatory T-cells are significantly downregulated after Kit-M triggered MLC- going along with a (reinstalled) antileukemic reactivity of the immune system (as demonstrated with functional assays ICS, Deg, CTX).
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Kolostova K, Pospisilova E, Matkowski R, Szelachowska J, Bobek V. Immune activation of the monocyte-derived dendritic cells using patients own circulating tumor cells. Cancer Immunol Immunother 2022; 71:2901-2911. [PMID: 35471603 DOI: 10.1007/s00262-022-03189-2] [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: 10/20/2021] [Accepted: 03/09/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Dendritic cell (DC) therapy counts to the promising strategies how to weaken and eradicate cancer disease. We aimed to develop a good manufacturing practice (GMP) protocol for monocyte-derived DC (Mo-DC) maturation using circulating tumor cells lysates with subsequent experimental T-cell priming in vitro. METHODS DC differentiation was induced from a population of immunomagnetically enriched CD14 + monocytes out of the leukapheresis samples (n = 6). The separation was provided automatically, in a closed bag system, using CliniMACS Prodigy® separation protocols (Miltenyi Biotec). For differentiation and maturation of CD14 + cells, DendriMACs® growing medium with supplements (GM-CSF, IL-4, IL-6, IL-1B, TNFa, PGE) was used. Immature Mo-DCs were loaded with autologous circulating tumor cell (CTCs) lysates. Autologous CTCs were sorted out by size-based filtration (MetaCell®) of the leukapheresis CD14-negative fraction. A mixture of mature Mo-DCs and autologous non-target blood cells (NTBCs) was co-cultured and the activation effect of mature Mo-DCs on T-cell activation was monitored by means of multimarker gene expression profiling. RESULTS New protocols for mMo-DC production using automatization and CTC lysates were introduced including a feasible in vitro assay for mMo-DC efficacy evaluation. Gene expression analysis revealed elevation for following genes in NTBC (T cells) subset primed by mMo-DCs: CD8A, CD4, MKI67, MIF, TNFA, CD86, and CD80 (p ≤ 0.01). CONCLUSION Summarizing the presented data, we might conclude mMo-DCs were generated using CliniMACS Prodigy® machine and CTC lysates in a homogenous manner showing a potential to generate NTBC activation in co-cultures. Identification of the activation signals in T-cell population by simple multimarker-qPCRs could fasten the process of effective mMo-DC production.
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Affiliation(s)
- Katarina Kolostova
- Laboratory of Personalized Medicine, Oncology Clinic, University Hospital Kralovske Vinohrady, Srobarova 50, 10034, Prague, Czech Republic
| | - Eliska Pospisilova
- Laboratory of Personalized Medicine, Oncology Clinic, University Hospital Kralovske Vinohrady, Srobarova 50, 10034, Prague, Czech Republic
| | - Rafal Matkowski
- Department of Oncology, Wrocław Medical University, Wrocław, Poland.,Breast Cancer Unit, Lower Silesian Oncology, Pulmonology and Hematology Center, Plac Hirszfelda 12, 54-413, Wrocław, Poland
| | - Jolanta Szelachowska
- Department of Oncology, Wrocław Medical University, Wrocław, Poland.,Breast Cancer Unit, Lower Silesian Oncology, Pulmonology and Hematology Center, Plac Hirszfelda 12, 54-413, Wrocław, Poland
| | - Vladimir Bobek
- Laboratory of Personalized Medicine, Oncology Clinic, University Hospital Kralovske Vinohrady, Srobarova 50, 10034, Prague, Czech Republic. .,3rd Department of Surgery University Hospital Motol and 1st Faculty of Medicine, Charles University, V Uvalu 84, 15006, Prague, Czech Republic. .,Department of Thoracic Surgery, Masaryk's Hospital, Krajska Zdravotni a.s., Socialni pece 3316/12A, 40113, Usti nad Labem, Czech Republic. .,Department of Thoracic Surgery, Lower Silesian Oncology, Pulmology and Hematology Center and Medical University Wroclaw, Grabiszynska 105, 53-413, Wrocław, Poland.
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Freudenreich M, Tischer J, Kroell T, Kremser A, Dreyßig J, Beibl C, Liepert A, Kolb HJ, Schmid C, Schmetzer H. In Vitro Generated Dendritic Cells of Leukemic Origin Predict Response to Allogeneic Stem Cell Transplantation in Patients With AML and MDS. J Immunother 2022; 45:104-118. [PMID: 34864807 DOI: 10.1097/cji.0000000000000404] [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: 04/28/2021] [Accepted: 08/26/2021] [Indexed: 11/25/2022]
Abstract
Allogeneic stem cell transplantation (alloSCT) is the treatment of choice for many patients with acute myeloid leukemia (AML) and myelodysplastic syndrome. The presentation of leukemic or allospecific antigens by malignant blasts is regarded as a crucial trigger for an effective allogeneic immune response. Conversely, insufficient stimulatory capacity by the leukemic blasts is thought to be a relevant escape mechanism from cellular immunotherapy (alloSCT). Our purpose was to test, whether the ability of malignant blasts to differentiate in vitro toward dendritic cells of leukemic origin (DCleu) is associated with clinical outcome. We isolated leukemic blasts from peripheral blood or bone marrow of AML and myelodysplastic syndrome patients before alloSCT (n=47) or at relapse after alloSCT (n=22). A panel of 6 different assays was used to generate DCleu in vitro. Results were correlated with clinical outcome. DCleu could be generated from all 69 samples. Significantly higher mean frequencies of DCleu were found in clinical long-term responders versus nonresponders to SCT (76.8% vs. 58.8%, P=0.006). Vice versa, the chance for response to SCT was significantly higher, if a DCleu+/dendritic cells (DC) ratio of >50% could be reached in vitro (P=0.004). Those patients were characterized by a longer time to relapse (P=0.04) and by a higher probability for leukemia-free survival (P=0.005). In vitro generation of DC and DCleu from leukemic blasts correlated with the clinical outcome. This observation may support a role of leukemic antigen presentation by "leukemia-derived DC" for the stimulation of an allogeneic immune response in AML.
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Affiliation(s)
- Markus Freudenreich
- Medical Department III, University Hospital Großhadern, Ludwig-Maximilians-University
| | - Johanna Tischer
- Medical Department III, University Hospital Großhadern, Ludwig-Maximilians-University
| | - Tanja Kroell
- Medical Department III, University Hospital Großhadern, Ludwig-Maximilians-University
| | - Andreas Kremser
- Medical Department III, University Hospital Großhadern, Ludwig-Maximilians-University
| | - Julia Dreyßig
- Medical Department III, University Hospital Großhadern, Ludwig-Maximilians-University
| | - Christine Beibl
- Medical Department III, University Hospital Großhadern, Ludwig-Maximilians-University
| | - Anja Liepert
- Medical Department III, University Hospital Großhadern, Ludwig-Maximilians-University
| | - Hans J Kolb
- Medical Department III, University Hospital Großhadern, Ludwig-Maximilians-University
| | - Christoph Schmid
- Department of Hematology and Oncology, Universitäts-Klinikum Augsburg, Augsburg, Germany
| | - Helga Schmetzer
- Medical Department III, University Hospital Großhadern, Ludwig-Maximilians-University
- Helmholtz Center Munich, German Research Center for Environmental Health/Clinical Cooperative Group Haematopoetic Cell Transplantation (CCG-HCT), Munich
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Klauer LK, Schutti O, Ugur S, Doraneh-Gard F, Amberger DC, Rogers N, Krämer D, Rank A, Schmid C, Eiz-Vesper B, Schmetzer HM. Interferon Gamma Secretion of Adaptive and Innate Immune Cells as a Parameter to Describe Leukaemia-Derived Dendritic-Cell-Mediated Immune Responses in Acute Myeloid Leukaemia in vitro. Transfus Med Hemother 2022; 49:44-61. [PMID: 35221867 PMCID: PMC8832209 DOI: 10.1159/000516886] [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: 12/08/2020] [Accepted: 04/28/2021] [Indexed: 11/02/2023] Open
Abstract
INTRODUCTION Myeloid leukaemic blasts can be converted into leukaemia-derived dendritic cells (DCleu), characterised by the simultaneous expression of dendritic- and leukaemia-associated antigens, which have the competence to prime and enhance (leukaemia-specific) immune responses with the whole leukaemic antigen repertoire. To display and further specify dendritic cell (DC)- and DCleu-mediated immune responses, we analysed the interferon gamma (IFNy) secretion of innate and adaptive immune cells. METHODS DC/DCleu were generated from leukaemic whole blood (WB) with (blast)modulatory Kit-I (granulocyte-macrophage colony-stimulating factor [GM-CSF] + Picibanil [OK-432]) and Kit-M (GM-CSF + prostaglandin E1) and were used to stimulate T cell-enriched immunoreactive cells. Initiated anti-leukaemic cytotoxicity was investigated with a cytotoxicity fluorolysis assay. Initiated IFNy secretion of T, NK, CIK, and iNKT cells was investigated with a cytokine secretion assay (CSA). IFNy positivity was additionally evaluated with an intracellular cytokine assay (ICA). Recent activation of leukaemia-specific cells was verified through addition of leukaemia-associated antigens (LAA; WT-1 and Prame). RESULTS We found Kit-I and Kit-M competent to generate mature DC and DCleu from leukaemic WB without induction of blast proliferation. Stimulation of immunoreactive cells with DC/DCleu regularly resulted in an increased anti-leukaemic cytotoxicity and increased IFNy secretion of T, NK, and CIK cells, pointing to the significant role of DC/DCleu in leukaemia-specific alongside anti-leukaemic reactions. Interestingly, an addition of LAA did not further increase IFNy secretion, suggesting an efficient activation of leukaemia-specific cells. Here, both the CSA and ICA yielded comparable frequencies of IFNy-positive cells. Remarkably, the anti-leukaemic cytotoxicity positively correlated with the IFNy secretion in TCD3+, TCD4+, TCD8+, and NKCD56+ cells. CONCLUSION Ultimately, the IFNy secretion of innate and adaptive immune cells appeared to be a suitable parameter to assess and monitor the efficacy of in vitro and potentially in vivo acute myeloid leukaemia immunotherapy. The CSA in this regard proved to be a convenient and reproducible technique to detect and phenotypically characterise IFNy-secreting cells. In respect to our studies on DC-based immunomodulation, we were able to display the potential of DC/DCleu to induce or improve leukaemia-specific and anti-leukaemic activity.
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Affiliation(s)
| | - Olga Schutti
- Department of Medicine III, University Hospital of Munich, Munich, Germany
| | - Selda Ugur
- Department of Medicine III, University Hospital of Munich, Munich, Germany
| | | | | | - Nicole Rogers
- Department of Medicine III, University Hospital of Munich, Munich, Germany
| | - Doris Krämer
- Department of Haematology and Oncology, St.-Josefs-Hospital, Hagen, Germany
| | - Andreas Rank
- Department of Haematology and Oncology, University Hospital of Augsburg, Augsburg, Germany
| | - Christoph Schmid
- Department of Haematology and Oncology, University Hospital of Augsburg, Augsburg, Germany
| | - Britta Eiz-Vesper
- Institute for Transfusion Medicine, Hannover Medical School, Hannover, Germany
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Yu J, Sun H, Cao W, Song Y, Jiang Z. Research progress on dendritic cell vaccines in cancer immunotherapy. Exp Hematol Oncol 2022; 11:3. [PMID: 35074008 PMCID: PMC8784280 DOI: 10.1186/s40164-022-00257-2] [Citation(s) in RCA: 55] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 01/16/2022] [Indexed: 12/13/2022] Open
Abstract
Dendritic cell (DC) vaccines induce specific immune responses that can selectively eliminate target cells. In recent years, many studies have been conducted to explore DC vaccination in the treatment of hematological malignancies, including acute myeloid leukemia and myelodysplastic syndromes, as well as other nonleukemia malignancies. There are at least two different strategies that use DCs to promote antitumor immunity: in situ vaccination and canonical vaccination. Monocyte-derived DCs (mo-DCs) and leukemia-derived DCs (DCleu) are the main types of DCs used in vaccines for AML and MDS thus far. Different cancer-related molecules such as peptides, recombinant proteins, apoptotic leukemic cells, whole tumor cells or lysates and DCs/DCleu containing a vaster antigenic repertoire with RNA electroporation, have been used as antigen sources to load DCs. To enhance DC vaccine efficacy, new strategies, such as combination with conventional chemotherapy, monospecific/bispecific antibodies and immune checkpoint-targeting therapies, have been explored. After a decade of trials and tribulations, much progress has been made and much promise has emerged in the field. In this review we summarize the recent advances in DC vaccine immunotherapy for AML/MDS as well as other nonleukemia malignancies.
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Affiliation(s)
- Jifeng Yu
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
- Henan International Joint Laboratory of Nuclear Protein Gene Regulation, Henan University College of Medicine, Kaifeng, 475004, Henan, China
| | - Hao Sun
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Weijie Cao
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Yongping Song
- Department of Hematology, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, 450008, Henan, China.
| | - Zhongxing Jiang
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China.
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Eiz-Vesper B, Schmetzer HM. Antigen-Presenting Cells: Potential of Proven und New Players in Immune Therapies. Transfus Med Hemother 2020; 47:429-431. [PMID: 33442337 PMCID: PMC7768096 DOI: 10.1159/000512729] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 11/02/2020] [Indexed: 12/13/2022] Open
Affiliation(s)
- Britta Eiz-Vesper
- Institute of Transfusion Medicine and Transplant Engineering, Hannover Medical School, Hannover, Germany
| | - Helga Maria Schmetzer
- Med III, Department for Hematopoietic Transplantations, University Hospital of Munich − Grosshadern, Munich, Germany
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