1
|
Tian Y, Chen W, Du G, Gao J, Zhao Y, Wang Z, Su M, Hu R, Han F. Microfluidic-based preparation of artificial antigen-presenting gel droplets for integrated and minimalistic adoptive cell therapy strategies. Biofabrication 2024; 16:025034. [PMID: 38437712 DOI: 10.1088/1758-5090/ad2fd4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 03/04/2024] [Indexed: 03/06/2024]
Abstract
Adoptive T-cell transfer for cancer therapy is limited by the inefficiency ofin vitroT-cell expansion and the ability ofin vivoT-cells to infiltrate tumors. The construction of multifunctional artificial antigen-presenting cells is a promising but challenging approach to achieve this goal. In this study, a multifunctional artificial antigen-presenting gel droplet (AAPGD) was designed. Its surface provides regulated T-cell receptor (TCR) stimulation and co-stimulation signals and is capable of slow release of mitogenic cytokines and collagen mimetic peptide. The highly uniform AAPGD are generated by a facile method based on standard droplet microfluidic devices. The results of the study indicate that, T-cell proliferatedin vitroutilizing AAPGD have a fast rate and high activity. AAPGD increased the proportion ofin vitroproliferating T cells low differentiation and specificity. The starting number of AAPGDs and the quality ratio of TCR-stimulated and co-stimulated signals on the surface have a large impact on the rapid proliferation of low-differentiated T cellsin vitro. During reinfusion therapy, AAPGD also enhanced T-cell infiltration into the tumor site. In experiments using AAPGD for adoptive T cell therapy in melanoma mice, tumor growth was inhibited, eliciting a potent cytotoxic T-lymphocyte immune response and improving mouse survival. In conclusion, AAPGD promotes rapid low-differentiation proliferation of T cellsin vitroand enhances T cell infiltration of tumorsin vivo. It simplifies the preparation steps of adoptive cell therapy, improves the therapeutic effect, and provides a new pathway for overdosing T cells to treat solid tumors.
Collapse
Affiliation(s)
- Yishen Tian
- Translational Medicine Research Center, Guizhou Medical University, Guiyang 550025, People's Republic of China
- Key Laboratory for Research on Autoimmune Diseases of Higher Education schools in Guizhou Province, Guiyang 550025, People's Republic of China
| | - Wei Chen
- Department of Neurosurgery, The Affiliated Hospital of Guizhou Medical University, Guiyang 550004, People's Republic of China
| | - Guangshi Du
- Translational Medicine Research Center, Guizhou Medical University, Guiyang 550025, People's Republic of China
- Key Laboratory for Research on Autoimmune Diseases of Higher Education schools in Guizhou Province, Guiyang 550025, People's Republic of China
| | - Jie Gao
- Translational Medicine Research Center, Guizhou Medical University, Guiyang 550025, People's Republic of China
- Key Laboratory for Research on Autoimmune Diseases of Higher Education schools in Guizhou Province, Guiyang 550025, People's Republic of China
| | - Youbo Zhao
- Key Laboratory for Research on Autoimmune Diseases of Higher Education schools in Guizhou Province, Guiyang 550025, People's Republic of China
- Center for Tissue Engineering and Stem Cell Research, Guizhou Medical University, Guiyang 550025, People's Republic of China
| | - Zhuli Wang
- Key Laboratory for Research on Autoimmune Diseases of Higher Education schools in Guizhou Province, Guiyang 550025, People's Republic of China
- Center for Tissue Engineering and Stem Cell Research, Guizhou Medical University, Guiyang 550025, People's Republic of China
| | - Min Su
- Key Laboratory for Research on Autoimmune Diseases of Higher Education schools in Guizhou Province, Guiyang 550025, People's Republic of China
- Center for Tissue Engineering and Stem Cell Research, Guizhou Medical University, Guiyang 550025, People's Republic of China
| | - Rong Hu
- Translational Medicine Research Center, Guizhou Medical University, Guiyang 550025, People's Republic of China
- Key Laboratory for Research on Autoimmune Diseases of Higher Education schools in Guizhou Province, Guiyang 550025, People's Republic of China
| | - Feng Han
- Department of Neurosurgery, The Affiliated Hospital of Guizhou Medical University, Guiyang 550004, People's Republic of China
| |
Collapse
|
2
|
Stock S, Klüver AK, Fertig L, Menkhoff VD, Subklewe M, Endres S, Kobold S. Mechanisms and strategies for safe chimeric antigen receptor T-cell activity control. Int J Cancer 2023; 153:1706-1725. [PMID: 37350095 DOI: 10.1002/ijc.34635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 05/07/2023] [Accepted: 06/02/2023] [Indexed: 06/24/2023]
Abstract
The clinical application of chimeric antigen receptor (CAR) T-cell therapy has rapidly changed the treatment options for terminally ill patients with defined blood-borne cancer types. However, CAR T-cell therapy can lead to severe therapy-associated toxicities including CAR-related hematotoxicity, ON-target OFF-tumor toxicity, cytokine release syndrome (CRS) or immune effector cell-associated neurotoxicity syndrome (ICANS). Just as CAR T-cell therapy has evolved regarding receptor design, gene transfer systems and production protocols, the management of side effects has also improved. However, because of measures taken to abrogate adverse events, CAR T-cell viability and persistence might be impaired before complete remission can be achieved. This has fueled efforts for the development of extrinsic and intrinsic strategies for better control of CAR T-cell activity. These approaches can mediate a reversible resting state or irreversible T-cell elimination, depending on the route chosen. Control can be passive or active. By combination of CAR T-cells with T-cell inhibiting compounds, pharmacologic control, mostly independent of the CAR construct design used, can be achieved. Other strategies involve the genetic modification of T-cells or further development of the CAR construct by integration of molecular ON/OFF switches such as suicide genes. Alternatively, CAR T-cell activity can be regulated intracellularly through a self-regulation function or extracellularly through titration of a CAR adaptor or of a priming small molecule. In this work, we review the current strategies and mechanisms to control activity of CAR T-cells reversibly or irreversibly for preventing and for managing therapy-associated toxicities.
Collapse
Affiliation(s)
- Sophia Stock
- Division of Clinical Pharmacology, Department of Medicine IV, LMU University Hospital, Ludwig-Maximilians-Universität München (LMU), Munich, Germany
- Department of Medicine III, LMU University Hospital, Ludwig-Maximilians-Universität München (LMU), Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
| | - Anna-Kristina Klüver
- Division of Clinical Pharmacology, Department of Medicine IV, LMU University Hospital, Ludwig-Maximilians-Universität München (LMU), Munich, Germany
| | - Luisa Fertig
- Division of Clinical Pharmacology, Department of Medicine IV, LMU University Hospital, Ludwig-Maximilians-Universität München (LMU), Munich, Germany
| | - Vivien D Menkhoff
- Division of Clinical Pharmacology, Department of Medicine IV, LMU University Hospital, Ludwig-Maximilians-Universität München (LMU), Munich, Germany
| | - Marion Subklewe
- Division of Clinical Pharmacology, Department of Medicine IV, LMU University Hospital, Ludwig-Maximilians-Universität München (LMU), Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
- Laboratory for Translational Cancer Immunology, LMU Gene Center, Munich, Germany
| | - Stefan Endres
- Division of Clinical Pharmacology, Department of Medicine IV, LMU University Hospital, Ludwig-Maximilians-Universität München (LMU), Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
- Einheit für Klinische Pharmakologie (EKLiP), Helmholtz Zentrum München, German Research Center for Environmental Health (HMGU), Neuherberg, Germany
| | - Sebastian Kobold
- Division of Clinical Pharmacology, Department of Medicine IV, LMU University Hospital, Ludwig-Maximilians-Universität München (LMU), Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
- Einheit für Klinische Pharmakologie (EKLiP), Helmholtz Zentrum München, German Research Center for Environmental Health (HMGU), Neuherberg, Germany
| |
Collapse
|
3
|
White J, Mason R, Lawen T, Spooner J, Faria KVM, Rahman F, Ramasamy R. Therapeutic Approaches to Penile Cancer: Standards of Care and Recent Developments. Res Rep Urol 2023; 15:165-174. [PMID: 37288454 PMCID: PMC10243351 DOI: 10.2147/rru.s387228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 05/24/2023] [Indexed: 06/09/2023] Open
Abstract
Penile cancer is a rare malignancy, most commonly diagnosed in older men, associated with poor outcomes, dramatic decline in quality of life and sexual function. Squamous cell carcinoma is the most common histopathology of penile cancer, accounting for 95% of all cases. Localized, early-stage penile cancer can be effectively managed through penile-sparing techniques in many cases, though advanced stages of penile cancer carry a poor prognosis. Current innovative treatments are exploring the role of targeted therapy, HPV-directed therapy, immune checkpoint inhibitors and adoptive T-cell therapies in treatment and prevention of relapse of penile cancer. Clinical trials are investigating the potential of targeted therapies and immune checkpoint inhibitors in advanced penile cancer. This review examines the current management of penile cancer and highlights future directions in research and treatment.
Collapse
Affiliation(s)
- Joshua White
- Department of Urology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Ross Mason
- Department of Urology, Dalhousie University, Halifax, NS, Canada
| | - Tarek Lawen
- Department of Urology, Dalhousie University, Halifax, NS, Canada
| | - Jesse Spooner
- Department of Urology, Dalhousie University, Halifax, NS, Canada
| | - Kauy V M Faria
- Department of Urology, Institute of Cancer of São Paulo, University of São Paulo School of Medicine, Sao Paulo, Brazil
| | - Farah Rahman
- Department of Urology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Ranjith Ramasamy
- Department of Urology, University of Miami Miller School of Medicine, Miami, FL, USA
| |
Collapse
|
4
|
Klobuch S, Seijkens TTP, Haanen JBAG. The emerging role for CAR T cells in solid tumor oncology. Chin Clin Oncol 2023; 12:19. [PMID: 37160670 DOI: 10.21037/cco-22-125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 04/24/2023] [Indexed: 05/11/2023]
Abstract
In recent years, treatment with chimeric antigen receptor (CAR) T-cells has revolutionized the outcomes of patients with relapsed or refractory hematological malignancies with long-term remissions in >30% of patients. Similarly, the introduction of immune checkpoint inhibitor therapy changed the therapeutic landscape for several solid malignancies also leading to impressive long-term remission in patients. However, so far CAR T-cell therapy in solid tumors has shown low response rates and especially a lack of long-term remissions. This review focuses on the latest clinical advances and discusses promising results seen with CAR T-cells exploring new target antigens. We then review relevant challenges limiting long-term responses with CAR T-cell therapy in solid tumors like CAR T-cell persistence and target antigen expression. In addition, there is an increasing understanding on T-cell function and dysfunction within the immunosuppressive tumor microenvironment. This comprises of inhibitory cytokines and checkpoint molecules limiting the killing capacity of CAR T-cells. Finally, we will discuss how this deeper knowledge can be used to develop CAR T-cell therapies overcoming these inhibitory factors and results in CAR T-cell products with higher efficacy and safety. These technological developments will hopefully lead to enhanced clinical activity and improved solid tumor patient outcomes in the near future.
Collapse
Affiliation(s)
- Sebastian Klobuch
- Department of Medical Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Tom T P Seijkens
- Department of Medical Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands; Department of Medical Biochemistry, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - John B A G Haanen
- Department of Medical Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands; Department of Medical Oncology, Leiden University Medical Center, Leiden, The Netherlands
| |
Collapse
|
5
|
Bomb K, LeValley PJ, Woodward I, Cassel SE, Sutherland BP, Bhattacharjee A, Yun Z, Steen J, Kurdzo E, McCoskey J, Burris D, Levine K, Carbrello C, Lenhoff AM, Fromen CA, Kloxin AM. Cell therapy biomanufacturing: integrating biomaterial and flow-based membrane technologies for production of engineered T-cells. Adv Mater Technol 2023; 8:2201155. [PMID: 37600966 PMCID: PMC10437131 DOI: 10.1002/admt.202201155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Indexed: 08/22/2023]
Abstract
Adoptive T-cell therapies (ATCTs) are increasingly important for the treatment of cancer, where patient immune cells are engineered to target and eradicate diseased cells. The biomanufacturing of ATCTs involves a series of time-intensive, lab-scale steps, including isolation, activation, genetic modification, and expansion of a patient's T-cells prior to achieving a final product. Innovative modular technologies are needed to produce cell therapies at improved scale and enhanced efficacy. In this work, well-defined, bioinspired soft materials were integrated within flow-based membrane devices for improving the activation and transduction of T cells. Hydrogel coated membranes (HCM) functionalized with cell-activating antibodies were produced as a tunable biomaterial for the activation of primary human T-cells. T-cell activation utilizing HCMs led to highly proliferative T-cells that expressed a memory phenotype. Further, transduction efficiency was improved by several fold over static conditions by using a tangential flow filtration (TFF) flow-cell, commonly used in the production of protein therapeutics, to transduce T-cells under flow. The combination of HCMs and TFF technology led to increased cell activation, proliferation, and transduction compared to current industrial biomanufacturing processes. The combined power of biomaterials with scalable flow-through transduction techniques provides future opportunities for improving the biomanufacturing of ATCTs.
Collapse
Affiliation(s)
- Kartik Bomb
- Chemical and Biomolecular Engineering, University of Delaware, Newark, DE
| | - Paige J. LeValley
- Chemical and Biomolecular Engineering, University of Delaware, Newark, DE
| | - Ian Woodward
- Chemical and Biomolecular Engineering, University of Delaware, Newark, DE
| | - Samantha E. Cassel
- Chemical and Biomolecular Engineering, University of Delaware, Newark, DE
| | | | | | - Zaining Yun
- Chemical and Biomolecular Engineering, University of Delaware, Newark, DE
| | - Jonathan Steen
- EMD Millipore Corporation, Bedford, MA, an affiliate of Merck, Newark, DE
| | - Emily Kurdzo
- EMD Millipore Corporation, Bedford, MA, an affiliate of Merck, Newark, DE
| | - Jacob McCoskey
- EMD Millipore Corporation, Bedford, MA, an affiliate of Merck, Newark, DE
| | - David Burris
- Mechanical Engineering, University of Delaware, Newark, DE
| | - Kara Levine
- EMD Millipore Corporation, Bedford, MA, an affiliate of Merck, Newark, DE
| | | | - Abraham M. Lenhoff
- Chemical and Biomolecular Engineering, University of Delaware, Newark, DE
| | | | - April M. Kloxin
- Chemical and Biomolecular Engineering, University of Delaware, Newark, DE
- Material Science and Engineering, University of Delaware, Newark, DE
| |
Collapse
|
6
|
Chen Y, Zhao H, Luo J, Liao Y, Dan X, Hu G, Gu W. A phase I dose-escalation study of neoantigen-activated haploidentical T cell therapy for the treatment of relapsed or refractory peripheral T-cell lymphoma. Front Oncol 2022; 12:944511. [PMID: 36439517 PMCID: PMC9684663 DOI: 10.3389/fonc.2022.944511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 10/10/2022] [Indexed: 01/25/2023] Open
Abstract
UNLABELLED Peripheral T-cell lymphoma (PTCL) is a type of highly heterogeneous non-Hodgkin lymphoma with a poor prognosis and lack of effective targeted therapies. Adoptive T-cell therapy has been successfully used in the treatment of B-cell malignancies. We first used adoptive transfer of haploidentical T cells activated by patient-specific neoantigens in vitro to treat an elderly patient with refractory angioimmunoblastic T-cell lymphoma (AITL) in 2017, and the patient achieved long-term complete remission (CR). Here we report on early results from this first-in-human phase 1 clinical trial that aims to assess the safety and tolerability of neoantigen-activated haploidentical T cell therapy (NAHTC) for relapsed/refractory PTCL. CLINICAL TRIAL REGISTRATION http://www.chictr.org.cn/index.aspx, identifier [ChiCTR1800017440].
Collapse
Affiliation(s)
- Yuan Chen
- Department of Hematology, The Affiliated Zhuzhou Hospital Xiangya Medical College CSU, Zhuzhou, Hunan, China
| | - Hu Zhao
- Department of Hematology, The Affiliated Zhuzhou Hospital Xiangya Medical College CSU, Zhuzhou, Hunan, China
| | - Jing Luo
- Department of Hematology, The Affiliated Zhuzhou Hospital Xiangya Medical College CSU, Zhuzhou, Hunan, China
| | - Youping Liao
- Department of Hematology, The Affiliated Zhuzhou Hospital Xiangya Medical College CSU, Zhuzhou, Hunan, China
| | - Xu Dan
- YuceBio Medical Technology Co., Ltd, Shenzhen, Guangdong, China
| | - Guoyu Hu
- Department of Hematology, The Affiliated Zhuzhou Hospital Xiangya Medical College CSU, Zhuzhou, Hunan, China,*Correspondence: Guoyu Hu, ; Weiyue Gu,
| | - Weiyue Gu
- Chineo Medical Technology Co., Ltd, Beijing, China,*Correspondence: Guoyu Hu, ; Weiyue Gu,
| |
Collapse
|
7
|
Lammoglia Cobo MF, Welters C, Rosenberger L, Leisegang M, Dietze K, Pircher C, Penter L, Gary R, Bullinger L, Takvorian A, Moosmann A, Dornmair K, Blankenstein T, Kammertöns T, Gerbitz A, Hansmann L. Rapid single-cell identification of Epstein-Barr virus-specific T-cell receptors for cellular therapy. Cytotherapy 2022:S1465-3249(22)00079-2. [PMID: 35525797 DOI: 10.1016/j.jcyt.2022.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 02/18/2022] [Accepted: 03/10/2022] [Indexed: 11/20/2022]
Abstract
BACKGROUND AND AIMS Epstein-Barr virus (EBV) is associated with solid and hematopoietic malignancies. After allogeneic stem cell transplantation, EBV infection or reactivation represents a potentially life-threatening condition with no specific treatment available in clinical routine. In vitro expansion of naturally occurring EBV-specific T cells for adoptive transfer is time-consuming and influenced by the donor's T-cell receptor (TCR) repertoire and requires a specific memory compartment that is non-existent in seronegative individuals. The authors present highly efficient identification of EBV-specific TCRs that can be expressed on human T cells and recognize EBV-infected cells. METHODS AND RESULTS Mononuclear cells from six stem cell grafts were expanded in vitro with three HLA-B*35:01- or four HLA-A*02:01-presented peptides derived from six EBV proteins expressed during latent and lytic infection. Epitope-specific T cells expanded on average 42-fold and were single-cell-sorted and TCRαβ-sequenced. To confirm specificity, 11 HLA-B*35:01- and six HLA-A*02:01-restricted dominant TCRs were expressed on reporter cell lines, and 16 of 17 TCRs recognized their presumed target peptides. To confirm recognition of virus-infected cells and assess their value for adoptive therapy, three selected HLA-B*35:01- and four HLA-A*02:01-restricted TCRs were expressed on human peripheral blood lymphocytes. All TCR-transduced cells recognized EBV-infected lymphoblastoid cell lines. CONCLUSIONS The authors' approach provides sets of EBV epitope-specific TCRs in two different HLA contexts. Resulting cellular products do not require EBV-seropositive donors, can be adjusted to cell subsets of choice with exactly defined proportions of target-specific T cells, can be tracked in vivo and will help to overcome unmet clinical needs in the treatment and prophylaxis of EBV reactivation and associated malignancies.
Collapse
|
8
|
Abstract
Adaptive T-cell immunotherapy holds great promise for the successful treatment of leukemia, as well as other types of cancers. More recently, it was also shown to be an effective treatment option for chronic virus infections in immunosuppressed patients. Autologous or allogeneic T cells used for immunotherapy are usually genetically modified to express novel T-cell or chimeric antigen receptors. The production of such cells was significantly simplified with the CRISPR/Cas system, allowing for the deletion or insertion of novel genes at specific locations within the genome. In this review, we describe recent methodological breakthroughs that were important for the conduction of these genetic modifications, summarize crucial points to be considered when conducting such experiments, and highlight the potential pitfalls of these approaches.
Collapse
Affiliation(s)
- Alaleh Rezalotfi
- Institute of Immunology, Hannover Medical School, 30625 Hannover, Germany; (A.R.); (L.F.); (R.F.)
| | - Lea Fritz
- Institute of Immunology, Hannover Medical School, 30625 Hannover, Germany; (A.R.); (L.F.); (R.F.)
| | - Reinhold Förster
- Institute of Immunology, Hannover Medical School, 30625 Hannover, Germany; (A.R.); (L.F.); (R.F.)
- Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, 30625 Hannover, Germany
- German Centre for Infection Research (DZIF), Partner Site Hannover, 30625 Hannover, Germany
| | - Berislav Bošnjak
- Institute of Immunology, Hannover Medical School, 30625 Hannover, Germany; (A.R.); (L.F.); (R.F.)
- Correspondence: ; Tel.: +49-511-532-9731
| |
Collapse
|
9
|
Song H, Wang H, Gong M, Wu L, Liu X, Cao W, Gao X, Dou R, Chen Q, Hu H. Augmentation of antitumor function of tumor-infiltrating lymphocytes against triple-negative breast cancer by PD-1 blockade. Cell Biol Int 2021; 46:278-287. [PMID: 34854515 DOI: 10.1002/cbin.11729] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 10/04/2021] [Accepted: 11/27/2021] [Indexed: 12/23/2022]
Abstract
T-cell-based immunotherapy and immune checkpoint blockade have been successfully used to treat several human solid cancers. The present study attempted to investigate the feasibility and efficacy of the antitumor effect of adoptive cell therapy along with programmed cell death protein 1 (PD-1) inhibitor on triple-negative breast cancer (TNBC). Tumor infiltration lymphocytes (TILs) from TNBC mouse tumor tissues were isolated and expanded, and TILs for adoptive cell therapy (TILs-ACT) were applied in combination with a PD-1 inhibitor to the TNBC mouse model. The pre- and post-therapy antitumor efficacy, cytokine secretion, and pathological changes were assessed both in vitro and in vivo. We found that TILs exhibited higher IFN-γ and TNF-α secretion than conventional T cells. The TILs-ACT combined with PD-1 inhibitor promoted active T-cell infiltration into the tumor tissue and exerted a strong antitumor effect in an in vivo model. Additionally, the strategy could downregulate the expression of inhibitory marker PD-1 on TILs. In conclusion, PD-1 blockade regulated T-cell exhaustion that synergized with adoptive TIL transfer immunotherapy, leading to eradication of established TNBC tumors. These findings might be useful in developing a feasible and effective therapeutic approach for TNBC.
Collapse
Affiliation(s)
- Hongming Song
- Breast Disease Center, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Haibo Wang
- Breast Disease Center, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Mingkai Gong
- Breast Disease Center, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Li Wu
- Breast Disease Center, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Xiangping Liu
- Medical Research Center, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Weihong Cao
- Breast Disease Center, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Xueqiang Gao
- Breast Disease Center, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Rongrong Dou
- Breast Disease Center, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Qiaoyu Chen
- Breast Disease Center, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Haiyan Hu
- Breast Disease Center, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| |
Collapse
|
10
|
Liu JMH, Chen P, Uyeda MJ, Cieniewicz B, Sayitoglu EC, Thomas BC, Sato Y, Bacchetta R, Cepika AM, Roncarolo MG. Pre-clinical development and molecular characterization of an engineered type 1 regulatory T-cell product suitable for immunotherapy. Cytotherapy 2021; 23:1017-1028. [PMID: 34404616 PMCID: PMC8546780 DOI: 10.1016/j.jcyt.2021.05.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 05/26/2021] [Accepted: 05/26/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND AIMS Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is a curative therapeutic approach for many hematological disorders. However, allo-HSCT is frequently accompanied by a serious side effect: graft-versus-host disease (GVHD). The clinical use of allo-HSCT is limited by the inability of current immunosuppressive regimens to adequately control GvHD without impairing the graft-versus-leukemia effect (GvL) conferred by transplanted healthy immune cells. To address this, the authors have developed an engineered type 1 regulatory T-cell product called CD4IL-10 cells. CD4IL-10 cells are obtained through lentiviral transduction, which delivers the human IL10 gene into purified polyclonal CD4+ T cells. CD4IL-10 cells may provide an advantage over standard-of-care immunosuppressants because of the ability to suppress GvHD through continuous secretion of IL-10 and enhance the GvL effect in myeloid malignancies through targeted killing of malignant myeloid cells. METHODS Here the authors established a production process aimed at current Good Manufacturing Practice (cGMP) production for CD4IL-10 cells. RESULTS The authors demonstrated that the CD4IL-10 cell product maintains the suppressive and cytotoxic functions of previously described CD4IL-10 cells. In addition, RNA sequencing analysis of CD4IL-10 identified novel transcriptome changes, indicating that CD4IL-10 cells primarily upregulate cytotoxicity-related genes. These include four molecules with described roles in CD8+ T and natural killer cell-mediated cytotoxicity: CD244, KLRD1, KLRC1 and FASLG. Finally, it was shown that CD4IL-10 cells upregulate IL-22, which mediates wound healing and tissue repair, particularly in the gut. CONCLUSIONS Collectively, these results pave the way toward clinical translation of the cGMP-optimized CD4IL-10 cell product and uncover new molecules that have a role in the clinical application of CD4IL-10 cells.
Collapse
Affiliation(s)
- Jeffrey Mao-Hwa Liu
- Division of Stem Cell Transplantation and Regenerative Medicine, Department of Pediatrics, Center for Definitive and Curative Medicine, Stanford School of Medicine, Stanford, California, USA
| | - Ping Chen
- Division of Stem Cell Transplantation and Regenerative Medicine, Department of Pediatrics, Center for Definitive and Curative Medicine, Stanford School of Medicine, Stanford, California, USA
| | - Molly Javier Uyeda
- Division of Stem Cell Transplantation and Regenerative Medicine, Department of Pediatrics, Center for Definitive and Curative Medicine, Stanford School of Medicine, Stanford, California, USA; Stanford Institute for Stem Cell Biology and Regenerative Medicine, Stanford School of Medicine, Stanford, California, USA
| | - Brandon Cieniewicz
- Division of Stem Cell Transplantation and Regenerative Medicine, Department of Pediatrics, Center for Definitive and Curative Medicine, Stanford School of Medicine, Stanford, California, USA
| | - Ece Canan Sayitoglu
- Division of Stem Cell Transplantation and Regenerative Medicine, Department of Pediatrics, Center for Definitive and Curative Medicine, Stanford School of Medicine, Stanford, California, USA
| | - Benjamin Craig Thomas
- Division of Stem Cell Transplantation and Regenerative Medicine, Department of Pediatrics, Center for Definitive and Curative Medicine, Stanford School of Medicine, Stanford, California, USA
| | - Yohei Sato
- Division of Stem Cell Transplantation and Regenerative Medicine, Department of Pediatrics, Center for Definitive and Curative Medicine, Stanford School of Medicine, Stanford, California, USA
| | - Rosa Bacchetta
- Division of Stem Cell Transplantation and Regenerative Medicine, Department of Pediatrics, Center for Definitive and Curative Medicine, Stanford School of Medicine, Stanford, California, USA
| | - Alma-Martina Cepika
- Division of Stem Cell Transplantation and Regenerative Medicine, Department of Pediatrics, Center for Definitive and Curative Medicine, Stanford School of Medicine, Stanford, California, USA
| | - Maria Grazia Roncarolo
- Division of Stem Cell Transplantation and Regenerative Medicine, Department of Pediatrics, Center for Definitive and Curative Medicine, Stanford School of Medicine, Stanford, California, USA; Stanford Institute for Stem Cell Biology and Regenerative Medicine, Stanford School of Medicine, Stanford, California, USA.
| |
Collapse
|
11
|
Cui X, Snapper CM. Epstein Barr Virus: Development of Vaccines and Immune Cell Therapy for EBV-Associated Diseases. Front Immunol 2021; 12:734471. [PMID: 34691042 PMCID: PMC8532523 DOI: 10.3389/fimmu.2021.734471] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 09/15/2021] [Indexed: 11/13/2022] Open
Abstract
Epstein-Barr virus (EBV) is the first human tumor virus discovered and is strongly implicated in the etiology of multiple lymphoid and epithelial cancers. Each year EBV associated cancers account for over 200,000 new cases of cancer and cause 150,000 deaths world-wide. EBV is also the primary cause of infectious mononucleosis, and up to 70% of adolescents and young adults in developed countries suffer from infectious mononucleosis. In addition, EBV has been shown to play a critical role in the pathogenesis of multiple sclerosis. An EBV prophylactic vaccine that induces neutralizing antibodies holds great promise for prevention of EBV associated diseases. EBV envelope proteins including gH/gL, gB and gp350 play key roles in EBV entry and infection of target cells, and neutralizing antibodies elicited by each of these proteins have shown to prevent EBV infection of target cells and markedly decrease EBV titers in the peripheral blood of humanized mice challenged with lethal dose EBV. Recent studies demonstrated that immunization with the combination of gH/gL, gB and/or gp350 induced markedly increased synergistic EBV neutralizing activity compared to immunization with individual proteins. As previous clinical trials focused on gp350 alone were partially successful, the inclusion of gH/gL and gB in a vaccine formulation with gp350 represents a promising approach of EBV prophylactic vaccine development. Therapeutic EBV vaccines have also been tested clinically with encouraging results. Immunization with various vaccine platforms expressing the EBV latent proteins EBNA1, LMP1, and/or LMP2 promoted specific CD4+ and CD8+ cytotoxic responses with anti-tumor activity. The addition of EBV envelope proteins gH/gL, gB and gp350 has the potential to increase the efficacy of a therapeutic EBV vaccine. The immune system plays a critical role in the control of tumors, and immune cell therapy has emerged as a promising treatment of cancers. Adoptive T-cell therapy has been successfully used in the prevention and treatment of post-transplant lymphoproliferative disorder. Chimeric antigen receptor T cell therapy and T cell receptor engineered T cell therapy targeting EBV latent proteins LMP1, LMP2 and/or EBNA1 have been in development, with the goal to increase the specificity and efficacy of treatment of EBV associated cancers.
Collapse
Affiliation(s)
- Xinle Cui
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States.,The Institute for Vaccine Research and Department of Pathology, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
| | - Clifford M Snapper
- The Institute for Vaccine Research and Department of Pathology, Uniformed Services University of the Health Sciences, Bethesda, MD, United States.,Citranvi Biosciences LLC, Chapel Hill, NC, United States
| |
Collapse
|
12
|
Campillo-Davo D, Anguille S, Lion E. Trial Watch: Adoptive TCR-Engineered T-Cell Immunotherapy for Acute Myeloid Leukemia. Cancers (Basel) 2021; 13:4519. [PMID: 34572745 DOI: 10.3390/cancers13184519] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 08/20/2021] [Accepted: 09/01/2021] [Indexed: 02/06/2023] Open
Abstract
Simple Summary Acute myeloid leukemia (AML) is a type of blood cancer with an extremely grim prognosis. This is due to the fact that the majority of patients will relapse after frontline treatment. Overall survival of relapsed AML is very low, and treatment options are few. T lymphocytes harnessed with antitumor T-cell receptors (TCRs) can produce objective clinical responses in certain cancers, such as melanoma, but have not entered the main road for AML. In this review, we describe the current status of the field of TCR-T-cell therapies for AML. Abstract Despite the advent of novel therapies, acute myeloid leukemia (AML) remains associated with a grim prognosis. This is exemplified by 5-year overall survival rates not exceeding 30%. Even with frontline high-intensity chemotherapy regimens and allogeneic hematopoietic stem cell transplantation, the majority of patients with AML will relapse. For these patients, treatment options are few, and novel therapies are urgently needed. Adoptive T-cell therapies represent an attractive therapeutic avenue due to the intrinsic ability of T lymphocytes to recognize tumor cells with high specificity and efficiency. In particular, T-cell therapies focused on introducing T-cell receptors (TCRs) against tumor antigens have achieved objective clinical responses in solid tumors such as synovial sarcoma and melanoma. However, contrary to chimeric antigen receptor (CAR)-T cells with groundbreaking results in B-cell malignancies, the use of TCR-T cells for hematological malignancies is still in its infancy. In this review, we provide an overview of the status and clinical advances in adoptive TCR-T-cell therapy for the treatment of AML.
Collapse
|
13
|
Abstract
Human cytomegalovirus (HCMV), by primary infection or reactivation, represents a great risk for immune-suppressed or compromised patients. In immunocompetent humans, the immune system suppresses the spread of HCMV during an infection, resulting in a mostly asymptomatic or mild course of the disease, whereas in immune suppressed patients, the compromised host immune response cannot control the viral infection. Multiple viral immunomodulatory mechanisms additionally contribute to immune evasion. Use of chimeric antigen receptors (CARs), a treatment strategy adapted from cancer immunotherapy, is investigated for possible application to combat HCMV and other infections in immunocompromised patients. The administration of CAR+ T-cells directed against HCMV antigens can bypass viral immune evasion and may complement existing treatment methods. This review gives a short overview of HCMV, the obstacles of current treatment options as well as a brief introduction to CARs and the current research situation on CAR+ T-cells against HCMV.
Collapse
|
14
|
Abstract
Melanoma is the most aggressive and dangerous form of skin cancer that develops from transformed melanocytes. It is crucial to identify melanoma at its early stages, in situ, as it is "curable" at this stage. However, after metastasis, it is difficult to treat and the five-year survival is only 25%. In recent years, a better understanding of the etiology of melanoma and its progression has made it possible for the development of targeted therapeutics, such as vemurafenib and immunotherapies, to treat advanced melanomas. In this review, we focus on the molecular mechanisms that mediate melanoma development and progression, with a special focus on the immune evasion strategies utilized by melanomas, to evade host immune surveillances. The proposed mechanism of action and the roles of immunotherapeutic agents, ipilimumab, nivolumab, pembrolizumab, and atezolizumab, adoptive T- cell therapy plus T-VEC in the treatment of advanced melanoma are discussed. In this review, we implore that a better understanding of the steps that mediate melanoma onset and progression, immune evasion strategies exploited by these tumor cells, and the identification of biomarkers to predict treatment response are critical in the design of improved strategies to improve clinical outcomes for patients with this deadly disease.
Collapse
Affiliation(s)
- Kevinn Eddy
- Graduate Program in Cellular and Molecular Pharmacology, School of Graduate Studies Rutgers University, Piscataway, NJ 08854, USA;
- Susan Lehman Cullman Laboratory for Cancer Research, Rutgers University, Piscataway, NJ 08854, USA
| | - Suzie Chen
- Graduate Program in Cellular and Molecular Pharmacology, School of Graduate Studies Rutgers University, Piscataway, NJ 08854, USA;
- Susan Lehman Cullman Laboratory for Cancer Research, Rutgers University, Piscataway, NJ 08854, USA
- Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901, USA
- Environmental & Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA
| |
Collapse
|
15
|
Abstract
Over the last decade, chimeric antigen receptor (CAR)-T cell therapy has emerged as a promising treatment modality for relapsed/refractory B-cell malignancies in both children and adults. As an adoptive immune therapy, CAR-T cells have the potential to overcome disease that is resistant to chemo- and radiotherapy as well as represent a viable option for those who have already reached toxicity ceilings with standard therapies. CD19-directed CAR-T cell products have been licensed for use in paediatric B-cell acute lymphoblastic leukaemia that is refractory, in relapse post-transplant or in second or later relapse. Many challenges remain, rightly resulting in a heavily-mined research field. These include mitigating short-term immune-mediated toxicity, maintaining durability of responses, broadening treatment accessibility and extending its applicability to other malignant settings. In this review, dedicated to marking 60 years since the establishment of the British Society for Haematology, we will focus on the contribution of our community towards the success of CD19-directed CAR-T cell therapy in children. We will put current practice in CAR-T cell therapy into the context of future challenges to be addressed in order for it to fulfil its "game-changing" therapeutic potential.
Collapse
Affiliation(s)
- Srdan Rogosic
- Developmental Biology and Cancer, Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Sara Ghorashian
- Developmental Biology and Cancer, Great Ormond Street Institute of Child Health, University College London, London, UK
| |
Collapse
|
16
|
Macpherson AM, Barry SC, Ricciardelli C, Oehler MK. Epithelial Ovarian Cancer and the Immune System: Biology, Interactions, Challenges and Potential Advances for Immunotherapy. J Clin Med 2020; 9:E2967. [PMID: 32937961 PMCID: PMC7564553 DOI: 10.3390/jcm9092967] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/28/2020] [Accepted: 09/03/2020] [Indexed: 12/11/2022] Open
Abstract
Recent advances in the understanding of immune function and the interactions with tumour cells have led to the development of various cancer immunotherapies and strategies for specific cancer types. However, despite some stunning successes with some malignancies such as melanomas and lung cancer, most patients receive little or no benefit from immunotherapy, which has been attributed to the tumour microenvironment and immune evasion. Although the US Food and Drug Administration have approved immunotherapies for some cancers, to date, only the anti-angiogenic antibody bevacizumab is approved for the treatment of epithelial ovarian cancer. Immunotherapeutic strategies for ovarian cancer are still under development and being tested in numerous clinical trials. A detailed understanding of the interactions between cancer and the immune system is vital for optimisation of immunotherapies either alone or when combined with chemotherapy and other therapies. This article, in two main parts, provides an overview of: (1) components of the normal immune system and current knowledge regarding tumour immunology, biology and their interactions; (2) strategies, and targets, together with challenges and potential innovative approaches for cancer immunotherapy, with attention given to epithelial ovarian cancer.
Collapse
Affiliation(s)
- Anne M. Macpherson
- Discipline of Obstetrics and Gynaecology, Adelaide Medical School, Robinson Research Institute, University of Adelaide, Adelaide 5000, Australia; (A.M.M.); (C.R.)
| | - Simon C. Barry
- Molecular Immunology, Robinson Research Institute, University of Adelaide, Adelaide 5005, Australia;
| | - Carmela Ricciardelli
- Discipline of Obstetrics and Gynaecology, Adelaide Medical School, Robinson Research Institute, University of Adelaide, Adelaide 5000, Australia; (A.M.M.); (C.R.)
| | - Martin K. Oehler
- Discipline of Obstetrics and Gynaecology, Adelaide Medical School, Robinson Research Institute, University of Adelaide, Adelaide 5000, Australia; (A.M.M.); (C.R.)
- Department of Gynaecological Oncology, Royal Adelaide Hospital, Adelaide 5000, Australia
| |
Collapse
|
17
|
Lau D, Garçon F, Chandra A, Lechermann LM, Aloj L, Chilvers ER, Corrie PG, Okkenhaug K, Gallagher FA. Intravital Imaging of Adoptive T-Cell Morphology, Mobility and Trafficking Following Immune Checkpoint Inhibition in a Mouse Melanoma Model. Front Immunol 2020; 11:1514. [PMID: 32793206 PMCID: PMC7387409 DOI: 10.3389/fimmu.2020.01514] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 06/09/2020] [Indexed: 12/13/2022] Open
Abstract
Efficient T-cell targeting, infiltration and activation within tumors is crucial for successful adoptive T-cell therapy. Intravital microscopy is a powerful tool for the visualization of T-cell behavior within tumors, as well as spatial and temporal heterogeneity in response to immunotherapy. Here we describe an experimental approach for intravital imaging of adoptive T-cell morphology, mobility and trafficking in a skin-flap tumor model, following immune modulation with immune checkpoint inhibitors (ICIs) targeting PD-L1 and CTLA-4. A syngeneic model of ovalbumin and mCherry-expressing amelanotic mouse melanoma was used in conjunction with adoptively transferred OT-1+ cytotoxic T-cells expressing GFP to image antigen-specific live T-cell behavior within the tumor microenvironment. Dynamic image analysis of T-cell motility showed distinct CD8+ T-cell migration patterns and morpho-dynamics within different tumor compartments in response to ICIs: this approach was used to cluster T-cell behavior into four groups based on velocity and meandering index. The results showed that most T-cells within the tumor periphery demonstrated Lévy-like trajectories, consistent with tumor cell searching strategies. T-cells adjacent to tumor cells had reduced velocity and appeared to probe the local environment, consistent with cell-cell interactions. An increased number of T-cells were detected following treatment, traveling at lower mean velocities than controls, and demonstrating reduced displacement consistent with target engagement. Histogram-based analysis of immunofluorescent images from harvested tumors showed that in the ICI-treated mice there was a higher density of CD31+ vessels compared to untreated controls and a greater infiltration of T-cells towards the tumor core, consistent with increased cellular trafficking post-treatment.
Collapse
Affiliation(s)
- Doreen Lau
- Cancer Research UK Cambridge Centre, Cambridge, United Kingdom
- Department of Radiology, University of Cambridge, Cambridge, United Kingdom
| | - Fabien Garçon
- Laboratory of Lymphocyte Signaling and Development, The Babraham Institute, Cambridge, United Kingdom
| | - Anita Chandra
- Department of Medicine, University of Cambridge, Cambridge, United Kingdom
- Department of Pathology, University of Cambridge, Cambridge, United Kingdom
| | | | - Luigi Aloj
- Cancer Research UK Cambridge Centre, Cambridge, United Kingdom
- Department of Radiology, University of Cambridge, Cambridge, United Kingdom
- Department of Nuclear Medicine, Addenbrooke's Hospital, Cambridge, United Kingdom
| | - Edwin R. Chilvers
- Department of Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Pippa G. Corrie
- Department of Oncology, Addenbrooke's Hospital, Cambridge, United Kingdom
| | - Klaus Okkenhaug
- Department of Pathology, University of Cambridge, Cambridge, United Kingdom
| | - Ferdia A. Gallagher
- Cancer Research UK Cambridge Centre, Cambridge, United Kingdom
- Department of Radiology, University of Cambridge, Cambridge, United Kingdom
| |
Collapse
|
18
|
Simon B, Uslu U. Fasten the seat belt: Increasing safety of CAR T-cell therapy. Exp Dermatol 2020; 29:1039-1045. [PMID: 32627228 DOI: 10.1111/exd.14131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/01/2020] [Accepted: 06/11/2020] [Indexed: 12/13/2022]
Abstract
After the recent success and approvals of chimeric antigen receptor (CAR) T cells in haematological malignancies, its efficacy is currently evaluated in a broad spectrum of tumor entities including melanoma. However, severe and potentially life-threatening side effects like cytokine release syndrome, neurologic toxicities, and the competing risk of morbidity and mortality from the treatment itself are still a major limiting factor in the current CAR T-cell landscape. In addition, especially in solid tumors, the lack of ideal target antigens to avoid on-target/off-tumor toxicities also restricts its use. While various groups are working on strategies to boost CAR T-cell efficacy, mechanisms to increase engineered T-cell safety should not move out of focus. Thus, the aim of this article is to summarize and to discuss current and potential future strategies and mechanisms to increase CAR T-cell safety in order to enable the wide use of this promising approach in melanoma and other tumor entities.
Collapse
Affiliation(s)
- Bianca Simon
- Department of Dermatology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Universitätsklinikum Erlangen, Erlangen, Germany.,Comprehensive Cancer Center Erlangen- European Metropolitan Area of Nuremberg (CCC ER-EMN), Erlangen, Germany.,Deutsches Zentrum Immuntherapie (DZI), Erlangen, Germany.,Division of Genetics, Department of Biology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Ugur Uslu
- Department of Dermatology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Universitätsklinikum Erlangen, Erlangen, Germany.,Comprehensive Cancer Center Erlangen- European Metropolitan Area of Nuremberg (CCC ER-EMN), Erlangen, Germany.,Deutsches Zentrum Immuntherapie (DZI), Erlangen, Germany
| |
Collapse
|
19
|
Fujiwara K, Shigematsu K, Tachibana M, Okada N. Development and functional analysis of an anticancer T-cell medicine with immune checkpoint inhibitory ability. IUBMB Life 2020; 72:1649-1658. [PMID: 32255257 DOI: 10.1002/iub.2280] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 03/22/2020] [Indexed: 01/09/2023]
Abstract
Adoptive cell therapy using patients' own T-cells is expected to be an ideal cancer treatment strategy with excellent antitumor effects and low side effects. However, this therapy targeting solid tumors is unlikely to be effective because tumor tissues have an environment that suppresses T-cell function. In particular, interaction between programmed death-1 (PD-1) and its ligand (PD-L1) inhibits T-cell activation by which T-cells eliminate tumor cells. Here, we attempted to develop T-cells that can exert potent antitumor activity even in tumor tissues by genetically modifying them to express the anti-PD-L1 membrane-anchoring type single chain variable fragment (M-scFv) that can inhibit PD-L1/PD-1 interaction. Anti-PD-L1 M-scFv could be expressed on T-cells while maintaining PD-L1-binding ability. Although T-cell proliferation induced by CD3 stimulation was decreased depending on the PD-L1 stimulation intensity, M-scFv-expressing T-cells showed high proliferative activity even in the presence of PD-L1 by avoiding the PD-L1/PD-1-mediated suppression. Furthermore, M-scFv-expressing T-cells showed higher cytotoxic activity against PD-L1high tumor cells than that of mock T-cells. The effect of PD-L1/PD-1 blockade was more pronounced when the therapeutic target was low-antigenic tumor cells with low major histocompatibility complex expression, presenting only the shared antigen. These results indicated that anti-PD-L1 M-scFv expression was functional in avoiding T-cell dysfunction by PD-L1/PD-1 interaction. Our concept of anti-PD-L1 M-scFv-expressing T-cells is thus expected to improve the efficacy of T-cell therapy and contribute to simplify the treatment system and reduce treatment costs compared with the combination therapy of T-cells and antibodies.
Collapse
Affiliation(s)
- Kento Fujiwara
- Project for Vaccine and Immune Regulation, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
| | - Kazuki Shigematsu
- Project for Vaccine and Immune Regulation, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
| | - Masashi Tachibana
- Project for Vaccine and Immune Regulation, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
| | - Naoki Okada
- Project for Vaccine and Immune Regulation, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
| |
Collapse
|
20
|
Wiede F, Lu KH, Du X, Liang S, Hochheiser K, Dodd GT, Goh PK, Kearney C, Meyran D, Beavis PA, Henderson MA, Park SL, Waithman J, Zhang S, Zhang ZY, Oliaro J, Gebhardt T, Darcy PK, Tiganis T. PTPN2 phosphatase deletion in T cells promotes anti-tumour immunity and CAR T-cell efficacy in solid tumours. EMBO J 2019; 39:e103637. [PMID: 31803974 PMCID: PMC6960448 DOI: 10.15252/embj.2019103637] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 11/04/2019] [Accepted: 11/08/2019] [Indexed: 12/18/2022] Open
Abstract
Although adoptive T-cell therapy has shown remarkable clinical efficacy in haematological malignancies, its success in combating solid tumours has been limited. Here, we report that PTPN2 deletion in T cells enhances cancer immunosurveillance and the efficacy of adoptively transferred tumour-specific T cells. T-cell-specific PTPN2 deficiency prevented tumours forming in aged mice heterozygous for the tumour suppressor p53. Adoptive transfer of PTPN2-deficient CD8+ T cells markedly repressed tumour formation in mice bearing mammary tumours. Moreover, PTPN2 deletion in T cells expressing a chimeric antigen receptor (CAR) specific for the oncoprotein HER-2 increased the activation of the Src family kinase LCK and cytokine-induced STAT-5 signalling, thereby enhancing both CAR T-cell activation and homing to CXCL9/10-expressing tumours to eradicate HER-2+ mammary tumours in vivo. Our findings define PTPN2 as a target for bolstering T-cell-mediated anti-tumour immunity and CAR T-cell therapy against solid tumours.
Collapse
Affiliation(s)
- Florian Wiede
- Monash Biomedicine Discovery Institute, Monash University, Clayton, Vic., Australia.,Department of Biochemistry and Molecular Biology, Monash University, Clayton, Vic., Australia.,Peter MacCallum Cancer Centre, Melbourne, Vic., Australia
| | - Kun-Hui Lu
- Peter MacCallum Cancer Centre, Melbourne, Vic., Australia
| | - Xin Du
- Peter MacCallum Cancer Centre, Melbourne, Vic., Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Vic., Australia
| | - Shuwei Liang
- Monash Biomedicine Discovery Institute, Monash University, Clayton, Vic., Australia.,Department of Biochemistry and Molecular Biology, Monash University, Clayton, Vic., Australia.,Peter MacCallum Cancer Centre, Melbourne, Vic., Australia
| | - Katharina Hochheiser
- Peter MacCallum Cancer Centre, Melbourne, Vic., Australia.,Department of Microbiology and Immunology, The University of Melbourne, Melbourne, Vic., Australia.,Peter Doherty Institute for Infection and Immunity, Melbourne, Vic., Australia
| | - Garron T Dodd
- Monash Biomedicine Discovery Institute, Monash University, Clayton, Vic., Australia.,Department of Biochemistry and Molecular Biology, Monash University, Clayton, Vic., Australia
| | - Pei K Goh
- Monash Biomedicine Discovery Institute, Monash University, Clayton, Vic., Australia.,Department of Biochemistry and Molecular Biology, Monash University, Clayton, Vic., Australia.,Peter MacCallum Cancer Centre, Melbourne, Vic., Australia
| | - Conor Kearney
- Peter MacCallum Cancer Centre, Melbourne, Vic., Australia
| | - Deborah Meyran
- Peter MacCallum Cancer Centre, Melbourne, Vic., Australia
| | - Paul A Beavis
- Peter MacCallum Cancer Centre, Melbourne, Vic., Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Vic., Australia
| | | | - Simone L Park
- Department of Microbiology and Immunology, The University of Melbourne, Melbourne, Vic., Australia.,Peter Doherty Institute for Infection and Immunity, Melbourne, Vic., Australia
| | - Jason Waithman
- Telethon Kids Institute, University of Western Australia, Perth, WA, Australia
| | - Sheng Zhang
- Department of Medicinal Chemistry and Molecular Pharmacology, Institute for Drug Discovery, Purdue University, West Lafayette, IN, USA
| | - Zhong-Yin Zhang
- Department of Medicinal Chemistry and Molecular Pharmacology, Institute for Drug Discovery, Purdue University, West Lafayette, IN, USA
| | - Jane Oliaro
- Peter MacCallum Cancer Centre, Melbourne, Vic., Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Vic., Australia
| | - Thomas Gebhardt
- Department of Microbiology and Immunology, The University of Melbourne, Melbourne, Vic., Australia.,Peter Doherty Institute for Infection and Immunity, Melbourne, Vic., Australia
| | - Phillip K Darcy
- Peter MacCallum Cancer Centre, Melbourne, Vic., Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Vic., Australia
| | - Tony Tiganis
- Monash Biomedicine Discovery Institute, Monash University, Clayton, Vic., Australia.,Department of Biochemistry and Molecular Biology, Monash University, Clayton, Vic., Australia.,Peter MacCallum Cancer Centre, Melbourne, Vic., Australia
| |
Collapse
|
21
|
Sanderson JP, Crowley DJ, Wiedermann GE, Quinn LL, Crossland KL, Tunbridge HM, Cornforth TV, Barnes CS, Ahmed T, Howe K, Saini M, Abbott RJ, Anderson VE, Tavano B, Maroto M, Gerry AB. Preclinical evaluation of an affinity-enhanced MAGE-A4-specific T-cell receptor for adoptive T-cell therapy. Oncoimmunology 2019; 9:1682381. [PMID: 32002290 PMCID: PMC6959444 DOI: 10.1080/2162402x.2019.1682381] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 09/12/2019] [Accepted: 10/14/2019] [Indexed: 12/13/2022] Open
Abstract
A substantial obstacle to the success of adoptive T cell-based cancer immunotherapy is the sub-optimal affinity of T-cell receptors (TCRs) for most tumor antigens. Genetically engineered TCRs that have enhanced affinity for specific tumor peptide-MHC complexes may overcome this barrier. However, this enhancement risks increasing weak TCR cross-reactivity to other antigens expressed by normal tissues, potentially leading to clinical toxicities. To reduce the risk of such adverse clinical outcomes, we have developed an extensive preclinical testing strategy, involving potency testing using 2D and 3D human cell cultures and primary tumor material, and safety testing using human primary cell and cell-line cross-reactivity screening and molecular analysis to predict peptides recognized by the affinity-enhanced TCR. Here, we describe this strategy using a developmental T-cell therapy, ADP-A2M4, which recognizes the HLA-A2-restricted MAGE-A4 peptide GVYDGREHTV. ADP-A2M4 demonstrated potent anti-tumor activity in the absence of major off-target cross-reactivity against a range of human primary cells and cell lines. Identification and characterization of peptides recognized by the affinity-enhanced TCR also revealed no cross-reactivity. These studies demonstrated that this TCR is highly potent and without major safety concerns, and as a result, this TCR is now being investigated in two clinical trials (NCT03132922, NCT04044768).
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | - Tina Ahmed
- Preclinical Research, Adaptimmune, Abingdon, UK
| | - Karen Howe
- Target Validation, Adaptimmune, Abingdon, UK
| | - Manoj Saini
- Preclinical Research, Adaptimmune, Abingdon, UK
| | | | | | | | | | | |
Collapse
|
22
|
Burns DM, Ryan GB, Harvey CM, Nagy E, Hughes S, Murray PG, Russell NH, Fox CP, Long HM. Non-uniform in vivo Expansion of Epstein-Barr Virus-Specific T-Cells Following Donor Lymphocyte Infusion for Post-transplant Lymphoproliferative Disease. Front Immunol 2019; 10:2489. [PMID: 31736946 PMCID: PMC6828838 DOI: 10.3389/fimmu.2019.02489] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 10/04/2019] [Indexed: 11/18/2022] Open
Abstract
Epstein-Barr virus (EBV)-associated post-transplant lymphoproliferative disease (PTLD) is a life-threatening complication of T-lymphocyte deplete allogeneic hematopoietic stem cell transplantation (allo-HSCT). For patients with PTLD refractory to Rituximab, donor lymphocyte infusion (DLI) is established as a successful option for salvage therapy. However, although in vivo lymphocyte expansion has been correlated with good clinical outcome following DLI, the specificity and functional characteristics of EBV-specific T-cell responses remain poorly characterized. Here we describe two patients with Rituximab-refractory PTLD complicating T-cell deplete allo-HSCT, both of whom were successfully rescued with 1 × 106/Kg unselected stem cell donor-derived DLI. Prospective analyses revealed that complete clinical and radiological responses were associated with in vivo expansion of T and NK cells. Furthermore, EBV MHC tetramer, and interferon gamma analyses revealed a marked increase in EBV-specific T-cell frequency from 4 weeks after DLI. Reactivity was demonstrated against a range of EBV latent and lytic antigens, including those detected in tumor biopsy material. The immunodominant EBV-specific T cell response expanding in vivo following infusion matched the dominant response present in the DLI preparations prior to administration. Furthermore, differences in the repertoire of subdominant antigen-specific T-cells were also detected, suggesting that antigen-encounter in vivo can shape the immune response. These results demonstrate the value of prospectively studying in vivo T-cell responses, by facilitating the identification of important specificities required for clinical efficacy. Applying this approach on a larger scale promises to yield data which may be essential for the optimization of future adoptive immunotherapeutic strategies for PTLD.
Collapse
Affiliation(s)
- David M Burns
- Institute for Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom
| | - Gordon B Ryan
- Institute for Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom.,Cancer Immunology and Immunotherapy Centre, University of Birmingham, Birmingham, United Kingdom
| | - Caroline M Harvey
- Department of Clinical Haematology, Nottingham University Hospitals NHS Trust, Nottingham, United Kingdom
| | - Eszter Nagy
- Institute for Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom.,Cancer Immunology and Immunotherapy Centre, University of Birmingham, Birmingham, United Kingdom
| | - Simon Hughes
- Department of Radiology, Nottingham University Hospitals NHS Trust, Nottingham, United Kingdom
| | - Paul G Murray
- Institute for Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom.,Cancer Immunology and Immunotherapy Centre, University of Birmingham, Birmingham, United Kingdom
| | - Nigel H Russell
- Department of Clinical Haematology, Nottingham University Hospitals NHS Trust, Nottingham, United Kingdom
| | - Christopher P Fox
- Department of Clinical Haematology, Nottingham University Hospitals NHS Trust, Nottingham, United Kingdom
| | - Heather M Long
- Institute for Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom.,Cancer Immunology and Immunotherapy Centre, University of Birmingham, Birmingham, United Kingdom
| |
Collapse
|
23
|
Jiang Q, Zhang C, Wang H, Peng T, Zhang L, Wang Y, Han W, Shi C. Mitochondria-Targeting Immunogenic Cell Death Inducer Improves the Adoptive T-Cell Therapy Against Solid Tumor. Front Oncol 2019; 9:1196. [PMID: 31781498 PMCID: PMC6861368 DOI: 10.3389/fonc.2019.01196] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 10/22/2019] [Indexed: 12/19/2022] Open
Abstract
Cancer immunotherapy including adoptive T cell therapy (ACT) is widely used in the clinic and is highly beneficial for patients with hematological malignancies; however, it remains a challenge to develop effective immunotherapy strategies for the treatment of solid cancers, due to the inefficiency of the immune response and the immunosuppressive tumor microenvironment (TME). Immunogenic cell death (ICD) converts dying cancer cells into a therapeutic vaccine and stimulate a systemic antigen-specific antitumor immune response, which can effectively subvert the immunosuppressive TME and enhance the efficiency of immune responses, relative to conventional immunotherapeutic regimens. However, the application of traditional inducers of ICD in anti-cancer immunotherapy has been limited because of low levels of ICD induction and a lack of tumor-targeting accumulation. Mitochondria are important for tumor-targeting strategies and have emerged as organelles with key roles in the immune system. We hypothesized that the alteration of mitochondria in cancer cells could be an important target for the development of an efficient ICD inducer for use in cancer immunotherapy. Here, we report the evaluation of a mitochondria-targeted small molecule, IR-780, that acts as an ICD inducer and exhibits exceptional antineoplastic activity. IR-780 specifically accumulated in tumor cells to elicit ICD in vitro and in vivo, effectively suppressed tumor growth and lung metastasis, and enhanced adoptive T-cell therapy effects against solid tumors in mouse models. These anticancer effects were linked to dendritic cell maturation and synergistic effector T cell priming and infiltration into tumors. The underlying mechanism involves the direct targeting of the mitochondria by IR-780, to destroy cancer cells, including drug-resistant cancer cells, leading to the full exposure of tumor-associated antigens (TAAs), thereby enhancing antigen-specific antitumor immune responses. These features of IR-780 suggest that it has the advantage of leading to complete TAA exposure and the stimulation of efficient antitumor immune responses in the TME. IR-780 has potential for use as a preparative ICD inducer, in combination with conventional immunostimulatory regimens for cancer immunotherapy, particularly in the context of solid tumor treatment.
Collapse
Affiliation(s)
- Qingzhi Jiang
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Rocket Force Medicine, Third Military Medical University, Chongqing, China
| | - Chi Zhang
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Rocket Force Medicine, Third Military Medical University, Chongqing, China
| | - Huilan Wang
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Rocket Force Medicine, Third Military Medical University, Chongqing, China
| | - Tao Peng
- Department of Blood Transfusion, The General Hospital of Western Theater Command, Chengdu, China
| | - Li Zhang
- Department of Blood Transfusion, The General Hospital of Western Theater Command, Chengdu, China
| | - Yang Wang
- Department of Blood Transfusion, The General Hospital of Western Theater Command, Chengdu, China
| | - Weidong Han
- Department of Molecular Biology, School of Life Sciences, Institute of Basic Medicine, Chinese PLA General Hospital, Beijing, China
| | - Chunmeng Shi
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Rocket Force Medicine, Third Military Medical University, Chongqing, China
| |
Collapse
|
24
|
Simon B, Uslu U. CAR-T cell therapy in melanoma: A future success story? Exp Dermatol 2019; 27:1315-1321. [PMID: 30288790 DOI: 10.1111/exd.13792] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 09/23/2018] [Accepted: 09/26/2018] [Indexed: 12/13/2022]
Abstract
Chimeric antigen receptor (CAR)-T cells are one of the impressive recent success stories of anti-cancer immunotherapy. Especially in haematological malignancies, this treatment strategy has shown promising results leading to the recent approval of two CAR-T cell constructs targeting CD19 in the United States and the European Union. After the huge success in haematological cancers, the next step will be the evaluation of its efficacy in different solid tumors, which is currently investigated in preclinical as well as clinical settings. A commonly examined tumor model in the context of immunotherapy is melanoma, since it is known for its immunogenic features. However, the first results of CAR-T cell therapy in solid tumors did not reveal the same impressive outcomes that were observed in haematological malignancies, as engineered cells need to cope with several challenges. Obstacles include the lack of migration of CAR-T cells from blood vessels to the tumor site as well as the immunosuppressive tumor microenvironment within solid tumors. Another hurdle is posed by the identification of an ideal target antigen to avoid on-target/off-tumor toxicities. Regarding immune escape mechanisms, which can be developed by tumor cells to bypass immune recognition, the observation of antigen loss should also be considered. This article gives an overview of the challenges displayed in CAR-T cell therapy for the use in solid tumors and discusses different new strategies and approaches that deal with these problems in order to improve CAR-T cell therapy, particularly for its use in melanoma.
Collapse
Affiliation(s)
- Bianca Simon
- Department of Dermatology, Friedrich-Alexander-University of Erlangen-Nürnberg (FAU), Universitätsklinikum Erlangen, Erlangen, Germany.,Department of Biology, Division of Genetics, Friedrich-Alexander-University of Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Ugur Uslu
- Department of Dermatology, Friedrich-Alexander-University of Erlangen-Nürnberg (FAU), Universitätsklinikum Erlangen, Erlangen, Germany
| |
Collapse
|
25
|
Zhou Y, Li C, Shi G, Xu X, Luo X, Zhang Y, Fu J, Chen L, Zeng A. Dendritic cell-based vaccine targeting aspartate-β-hydroxylas represents a promising therapeutic strategy for HCC. Immunotherapy 2019; 11:1399-1407. [PMID: 31608722 DOI: 10.2217/imt-2019-0081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Background: Dendritic cells (DCs)-mediated immunotherapy has been considered as a promising antitumor method. Aspartate-β-hydroxylase (AAH) is a potential immunotherapeutic target for hepatocellular carcinoma (HCC). Materials & methods: C57BL/6 mice were immunized by AAH-DCs vaccine constructed ex vivo. Killing tumor cells effect of active T cells induced by AAH-DCs vaccine on HCC cells were measured in vitro and vivo. The underlying mechanism was preliminarily investigated. Results: T cells response when activated by AAH-DCs vaccine showed a significant inhibition effect on HCC cells in vitro and in tumor-bearing mice models when compared with controls. Additionally, compared with the control group, increased expressions of Caspase8, Caspase 3 and Bax, and declined expression of Bcl-2 were observed in AAH-DCs vaccine group. Conclusion: AAH-DCs vaccine could stimulate T cell responses against HCC, which was possibly achieved via pro-apoptosis mechanism.
Collapse
Affiliation(s)
- Yujiao Zhou
- Department of Infectious Disease, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Chengmin Li
- Department of Gastroenterology,The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Guo Shi
- Department of Infectious Disease, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaolei Xu
- Department of Infectious Disease, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xue Luo
- Department of Infectious Disease, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yuanling Zhang
- Department of Infectious Disease, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jingjie Fu
- Department of Infectious Disease, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Limin Chen
- Toronto General Research Institute, University of Toronto, Toronto, ON, M2J4A6, Canada
| | - Aizhong Zeng
- Department of Infectious Disease, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| |
Collapse
|
26
|
Schank TE, Hassel JC. Immunotherapies for the Treatment of Uveal Melanoma-History and Future. Cancers (Basel) 2019; 11:cancers11081048. [PMID: 31344957 PMCID: PMC6721437 DOI: 10.3390/cancers11081048] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 07/06/2019] [Accepted: 07/16/2019] [Indexed: 12/21/2022] Open
Abstract
Background: Uveal melanoma is the most common primary intraocular malignancy among adults. It is, nevertheless, a rare disease, with an incidence of approximately one case per 100,000 individuals per year in Europe. Approximately half of tumors will eventually metastasize, and the liver is the organ usually affected. No standard-of-care treatment exists for metastasized uveal melanoma. Chemotherapies or liver-directed treatments do not usually result in long-term tumor control. Immunotherapies are currently the most promising therapy option available. Methods: We reviewed both relevant recent literature on PubMed concerning the treatment of uveal melanoma with immunotherapies, and currently investigated drugs on ClinicalTrials.gov. Our own experiences with immune checkpoint blockers are included in a case series of 20 patients. Results: Because few clinical trials have been conducted for metastasized uveal melanoma, no definitive treatment strategy exists for this rare disease. The outcomes of most immunotherapies are poor, especially compared with cutaneous melanoma. However, encouraging results have been found for some very recently investigated agents such as the bispecific tebentafusp, for which a remarkably increased one-year overall survival rate, and similarly increased disease control rate, were observed in early phase studies. Conclusions: The treatment of metastatic uveal melanoma remains challenging, and almost all patients still die from the disease. Long-term responses might be achievable by means of new immunological strategies. Patients should therefore be referred to large medical centers where they can take part in controlled clinical studies.
Collapse
Affiliation(s)
- Timo E Schank
- Department of Dermatology, University Hospital Heidelberg, 69120 Heidelberg, Germany.
- National Center for Tumor Diseases, University Hospital Heidelberg, 69120 Heidelberg, Germany.
| | - Jessica C Hassel
- Department of Dermatology, University Hospital Heidelberg, 69120 Heidelberg, Germany.
- National Center for Tumor Diseases, University Hospital Heidelberg, 69120 Heidelberg, Germany.
| |
Collapse
|
27
|
Amini L, Vollmer T, Wendering DJ, Jurisch A, Landwehr-Kenzel S, Otto NM, Jürchott K, Volk HD, Reinke P, Schmueck-Henneresse M. Comprehensive Characterization of a Next-Generation Antiviral T-Cell Product and Feasibility for Application in Immunosuppressed Transplant Patients. Front Immunol 2019; 10:1148. [PMID: 31191530 PMCID: PMC6546853 DOI: 10.3389/fimmu.2019.01148] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 05/07/2019] [Indexed: 11/13/2022] Open
Abstract
Viral infections have a major impact on morbidity and mortality of immunosuppressed solid organ transplant (SOT) patients because of missing or failure of adequate pharmacologic antiviral treatment. Adoptive antiviral T-cell therapy (AVTT), regenerating disturbed endogenous T-cell immunity, emerged as an attractive alternative approach to combat severe viral complications in immunocompromised patients. AVTT is successful in patients after hematopoietic stem cell transplantation where T-cell products (TCPs) are manufactured from healthy donors. In contrast, in the SOT setting TCPs are derived from/applied back to immunosuppressed patients. We and others demonstrated feasibility of TCP generation from SOT patients and first clinical proof-of-concept trials revealing promising data. However, the initial efficacy is frequently lost long-term, because of limited survival of transferred short-lived T-cells indicating a need for next-generation TCPs. Our recent data suggest that Rapamycin treatment during TCP manufacture, conferring partial inhibition of mTOR, might improve its composition. The aim of this study was to confirm these promising observations in a setting closer to clinical challenges and to deeply characterize the next-generation TCPs. Using cytomegalovirus (CMV) as model, our next-generation Rapamycin-treated (Rapa-)TCP showed consistently increased proportions of CD4+ T-cells as well as CD4+ and CD8+ central-memory T-cells (TCM). In addition, Rapamycin sustained T-cell function despite withdrawal of Rapamycin, showed superior T-cell viability and resistance to apoptosis, stable metabolism upon activation, preferential expansion of TCM, partial conversion of other memory T-cell subsets to TCM and increased clonal diversity. On transcriptome level, we observed a gene expression profile denoting long-lived early memory T-cells with potent effector functions. Furthermore, we successfully applied the novel protocol for the generation of Rapa-TCPs to 19/19 SOT patients in a comparative study, irrespective of their history of CMV reactivation. Moreover, comparison of paired TCPs generated before/after transplantation did not reveal inferiority of the latter despite exposition to maintenance immunosuppression post-SOT. Our data imply that the Rapa-TCPs, exhibiting longevity and sustained T-cell memory, are a reasonable treatment option for SOT patients. Based on our success to manufacture Rapa-TCPs from SOT patients under maintenance immunosuppression, now, we seek ultimate clinical proof of efficacy in a clinical study.
Collapse
Affiliation(s)
- Leila Amini
- Institute for Medical Immunology, Charité University Medicine Berlin, Berlin, Germany.,Renal and Transplant Research Unit, Department of Nephrology and Internal Intensive Care, Charité University Medicine Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies (BCRT), Charité University Medicine Berlin, Berlin, Germany.,Berlin-Brandenburg School for Regenerative Therapies, Charité University Medicine Berlin, Berlin, Germany.,Berlin Center for Advanced Therapies, Charité University Medicine Berlin, Berlin, Germany
| | - Tino Vollmer
- Institute for Medical Immunology, Charité University Medicine Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies (BCRT), Charité University Medicine Berlin, Berlin, Germany.,Berlin Center for Advanced Therapies, Charité University Medicine Berlin, Berlin, Germany
| | - Desiree J Wendering
- Institute for Medical Immunology, Charité University Medicine Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies (BCRT), Charité University Medicine Berlin, Berlin, Germany.,Berlin-Brandenburg School for Regenerative Therapies, Charité University Medicine Berlin, Berlin, Germany.,Berlin Center for Advanced Therapies, Charité University Medicine Berlin, Berlin, Germany
| | - Anke Jurisch
- Institute for Medical Immunology, Charité University Medicine Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies (BCRT), Charité University Medicine Berlin, Berlin, Germany
| | - Sybille Landwehr-Kenzel
- Berlin Institute of Health Center for Regenerative Therapies (BCRT), Charité University Medicine Berlin, Berlin, Germany.,Berlin Center for Advanced Therapies, Charité University Medicine Berlin, Berlin, Germany.,Department for Pediatric Pulmonology, Immunology and Intensive Care Medicine, Charité University Medicine Berlin, Berlin, Germany
| | - Natalie Maureen Otto
- Renal and Transplant Research Unit, Department of Nephrology and Internal Intensive Care, Charité University Medicine Berlin, Berlin, Germany.,Berlin Center for Advanced Therapies, Charité University Medicine Berlin, Berlin, Germany
| | - Karsten Jürchott
- Institute for Medical Immunology, Charité University Medicine Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies (BCRT), Charité University Medicine Berlin, Berlin, Germany
| | - Hans-Dieter Volk
- Institute for Medical Immunology, Charité University Medicine Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies (BCRT), Charité University Medicine Berlin, Berlin, Germany.,Berlin Center for Advanced Therapies, Charité University Medicine Berlin, Berlin, Germany
| | - Petra Reinke
- Renal and Transplant Research Unit, Department of Nephrology and Internal Intensive Care, Charité University Medicine Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies (BCRT), Charité University Medicine Berlin, Berlin, Germany.,Berlin Center for Advanced Therapies, Charité University Medicine Berlin, Berlin, Germany
| | - Michael Schmueck-Henneresse
- Institute for Medical Immunology, Charité University Medicine Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies (BCRT), Charité University Medicine Berlin, Berlin, Germany.,Berlin Center for Advanced Therapies, Charité University Medicine Berlin, Berlin, Germany
| |
Collapse
|
28
|
Nie W, Wei W, Zuo L, Lv C, Zhang F, Lu GH, Li F, Wu G, Huang LL, Xi X, Xie HY. Magnetic Nanoclusters Armed with Responsive PD-1 Antibody Synergistically Improved Adoptive T-Cell Therapy for Solid Tumors. ACS Nano 2019; 13:1469-1478. [PMID: 30763076 DOI: 10.1021/acsnano.8b07141] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Although adoptive T-cell therapy has been successful in hematological malignancy treatment, its application in solid tumors remains a great challenge. Here, using a pH-sensitive benzoic-imine bond and inverse electron-demand Diels-Alder cycloaddition, we prepared magnetic nanoclusters (NCs) armed with responsive PD-1 antibody (aP), which could then bind onto effector T cells due to their PD-1 expression. After adoptive transfer, the magnetization and superparamagnetism of NCs enabled us to magnetically recruit effector T cells and aP simultaneously to tumor sites with MRI guidance. Owing to the acidic intratumoral microenvironment, the benzoic-imine bond then hydrolyzed, leading to the release of aP. The therapeutic effects of adoptive T cells and free aP could thus be spatiotemporally coupled. As a result, we achieved inhibition of tumor growth with few side effects, demonstrating the great promise of such a chemical approach for safe and high-performance adoptive T-cell therapy against solid tumors.
Collapse
Affiliation(s)
- Weidong Nie
- School of Life Science , Beijing Institute of Technology , No. 5 South Street , Zhong Guan Cun, Beijing 100081 , China
| | - Wei Wei
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering , Chinese Academy of Sciences , 1 North Second Street , Zhong Guan Cun, Beijing 100190 , China
| | - Liping Zuo
- School of Life Science , Beijing Institute of Technology , No. 5 South Street , Zhong Guan Cun, Beijing 100081 , China
| | - Chengliang Lv
- School of Life Science , Beijing Institute of Technology , No. 5 South Street , Zhong Guan Cun, Beijing 100081 , China
| | - Fan Zhang
- School of Life Science , Beijing Institute of Technology , No. 5 South Street , Zhong Guan Cun, Beijing 100081 , China
| | - Gui-Hong Lu
- School of Life Science , Beijing Institute of Technology , No. 5 South Street , Zhong Guan Cun, Beijing 100081 , China
| | - Feng Li
- School of Life Science , Beijing Institute of Technology , No. 5 South Street , Zhong Guan Cun, Beijing 100081 , China
| | - Guanghao Wu
- School of Life Science , Beijing Institute of Technology , No. 5 South Street , Zhong Guan Cun, Beijing 100081 , China
| | - Li Li Huang
- School of Life Science , Beijing Institute of Technology , No. 5 South Street , Zhong Guan Cun, Beijing 100081 , China
| | - Xiaobo Xi
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering , Chinese Academy of Sciences , 1 North Second Street , Zhong Guan Cun, Beijing 100190 , China
| | - Hai-Yan Xie
- School of Life Science , Beijing Institute of Technology , No. 5 South Street , Zhong Guan Cun, Beijing 100081 , China
| |
Collapse
|
29
|
Zhang J, Wang L. The Emerging World of TCR-T Cell Trials Against Cancer: A Systematic Review. Technol Cancer Res Treat 2019; 18:1533033819831068. [PMID: 30798772 PMCID: PMC6391541 DOI: 10.1177/1533033819831068] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 12/20/2018] [Accepted: 01/22/2019] [Indexed: 12/28/2022] Open
Abstract
T-cell receptor-engineered T-cell therapy and chimeric antigen receptor T-cell therapy are 2 types of adoptive T-cell therapy that genetically modify natural T cells to treat cancers. Although chimeric antigen receptor T-cell therapy has yielded remarkable efficacy for hematological malignancies of the B-cell lineages, most solid tumors fail to respond significantly to chimeric antigen receptor T cells. T-cell receptor-engineered T-cell therapy, on the other hand, has shown unprecedented promise in treating solid tumors and has attracted growing interest. In order to create an unbiased, comprehensive, and scientific report for this fast-moving field, we carefully analyzed all 84 clinical trials using T-cell receptor-engineered T-cell therapy and downloaded from ClinicalTrials.gov updated by June 11, 2018. Informative features and trends were observed in these clinical trials. The number of trials initiated each year is increasing as expected, but an interesting pattern is observed. NY-ESO-1, as the most targeted antigen type, is the target of 31 clinical trials; melanoma is the most targeted cancer type and is the target of 33 clinical trials. Novel antigens and underrepresented cancers remain to be targeted in future studies and clinical trials. Unlike chimeric antigen receptor T-cell therapy, only about 16% of the 84 clinical trials target against hematological malignancies, consistent with T-cell receptor-engineered T-cell therapy's high potential for solid tumors. Six pharma/biotech companies with novel T-cell receptor-engineered T-cell ideas and products were examined in this review. Multiple approaches have been utilized in these companies to increase the T-cell receptor's affinity and efficiency and to minimize cross-reactivity. The major challenges in the development of the T-cell receptor-engineered T-cell therapy due to tumor microenvironment were also discussed here.
Collapse
Affiliation(s)
- Jianxiang Zhang
- The High School Affiliated to Renmin University, Beijing, People’s Republic of China
| | - Lingyu Wang
- Department of Biology, Duke University, Durham, NC, USA
| |
Collapse
|
30
|
Border EC, Sanderson JP, Weissensteiner T, Gerry AB, Pumphrey NJ. Affinity-enhanced T-cell receptors for adoptive T-cell therapy targeting MAGE-A10: strategy for selection of an optimal candidate. Oncoimmunology 2018; 8:e1532759. [PMID: 30713784 PMCID: PMC6343776 DOI: 10.1080/2162402x.2018.1532759] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 08/24/2018] [Accepted: 08/30/2018] [Indexed: 12/12/2022] Open
Abstract
Circulating T-cells that have passed thymic selection generally bear T-cell receptors (TCRs) with sub-optimal affinity for cancer-associated antigens, resulting in a limited ability to detect and eliminate tumor cells. Engineering TCRs to increase their affinity for cancer targets is a promising strategy for generating T-cells with enhanced potency for adoptive immunotherapy in cancer patients. However, this manipulation also risks generating cross-reactivity to antigens expressed by normal tissue, with potentially serious consequences. Testing in animal models might not detect such cross-reactivity due to species differences in the antigenic repertoire. To mitigate the risk of off-target toxicities in future clinical trials, we therefore developed an extensive in vitro testing strategy. This approach involved systematic substitution at each position of the antigenic peptide sequence using all natural amino acids to generate a profile of peptide specificity (“X-scan”). The likelihood of off-target reactivity was investigated by searching the human proteome for sequences matching this profile, and testing against a panel of primary cell lines. Starting from a diverse panel of parental TCRs, we engineered several affinity-enhanced TCRs specific for the cancer-testis antigen MAGE-A10. Two of these TCRs had affinities and specificities which appeared to be equally optimal when tested in conventional biochemical and cellular assays. The X-scan method, however, permitted us to select the most specific and potent candidate for further pre-clinical and clinical testing.
Collapse
|
31
|
Affiliation(s)
- Jorge D Ramos
- Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Department of Medicine, Division of Oncology, University of Washington School of Medicine, Seattle Cancer Care Alliance, 825 Eastlake Ave E - G4-800, Seattle, WA 98109-1024, USA
| | - Evan Y Yu
- Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Department of Medicine, Division of Oncology, University of Washington School of Medicine, Seattle Cancer Care Alliance, 825 Eastlake Ave E - G4-800, Seattle, WA 98109-1024, USA
| |
Collapse
|
32
|
Simon B, Wiesinger M, März J, Wistuba-Hamprecht K, Weide B, Schuler-Thurner B, Schuler G, Dörrie J, Uslu U. The Generation of CAR-Transfected Natural Killer T Cells for the Immunotherapy of Melanoma. Int J Mol Sci 2018; 19:ijms19082365. [PMID: 30103488 PMCID: PMC6121949 DOI: 10.3390/ijms19082365] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 08/05/2018] [Accepted: 08/09/2018] [Indexed: 12/22/2022] Open
Abstract
Natural killer T (NKT) cells represent a cell subpopulation that combines characteristics of natural killer (NK) cells and T cells. Through their endogenous T-cell receptors (TCRs), they reveal a pronounced intrinsic anti-tumor activity. Thus, a NKT cell transfected with a chimeric antigen receptor (CAR), which recognizes a tumor-specific surface antigen, could attack tumor cells antigen-specifically via the CAR and additionally through its endogenous TCR. NKT cells were isolated from peripheral blood mononuclear cells (PBMCs), expanded, and electroporated with mRNA encoding a chondroitin sulfate proteoglycan 4 (CSPG4)-specific CAR. The CAR expression on NKT cells and their in vitro functionality were analyzed. A transfection efficiency of more than 80% was achieved. Upon stimulation with melanoma cells, CAR-NKT cells produced cytokines antigen-specifically. Compared with conventional CAR-T cells, cytokine secretion of CAR-NKT cells was generally lower. Specific cytotoxicity, however, was similar with CAR-NKT cells showing a trend towards improved cytotoxicity. Additionally, CAR-NKT cells could kill target cells through their endogenous TCRs. In summary, it is feasible to generate CAR-NKT cells by using mRNA electroporation. Their CAR-mediated cytotoxicity is at least equal to that of conventional CAR-T cells, while their intrinsic cytotoxic activity is maintained. Thus, CAR-NKT cells may represent a valuable alternative to conventional CAR-T cells for cancer immunotherapy.
Collapse
Affiliation(s)
- Bianca Simon
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Department of Dermatology, Universitätsklinikum Erlangen, 91054 Erlangen, Germany.
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Division of Genetics, Department of Biology, 91058 Erlangen, Germany.
| | - Manuel Wiesinger
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Department of Dermatology, Universitätsklinikum Erlangen, 91054 Erlangen, Germany.
| | - Johannes März
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Department of Dermatology, Universitätsklinikum Erlangen, 91054 Erlangen, Germany.
| | - Kilian Wistuba-Hamprecht
- Eberhard-Karls-Universität Tübingen, University Medical Center, Department of Dermatology, 72076 Tübingen, Germany.
| | - Benjamin Weide
- Eberhard-Karls-Universität Tübingen, University Medical Center, Department of Dermatology, 72076 Tübingen, Germany.
| | - Beatrice Schuler-Thurner
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Department of Dermatology, Universitätsklinikum Erlangen, 91054 Erlangen, Germany.
| | - Gerold Schuler
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Department of Dermatology, Universitätsklinikum Erlangen, 91054 Erlangen, Germany.
| | - Jan Dörrie
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Department of Dermatology, Universitätsklinikum Erlangen, 91054 Erlangen, Germany.
| | - Ugur Uslu
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Department of Dermatology, Universitätsklinikum Erlangen, 91054 Erlangen, Germany.
| |
Collapse
|
33
|
Abstract
Adoptive cellular therapy has evolved into a powerful force in the battle against cancer, holding promise for curative responses in patients with advanced and refractory tumors. Autologous T cells, reprogrammed to target malignant cells via the expression of a chimeric antigen receptor (CAR) represent the frontrunner in this approach. Tremendous clinical regressions have been achieved using CAR-T cells against a variety of cancers both in numerous preclinical studies and in several clinical trials, most notably against acute lymphoblastic leukemia, and resulted in a very recent United States Food and Drug Administration approval of the first CAR-T-cell therapy. In most studies CARs are transferred to conventional αβT cells. Nevertheless, transferring a CAR into different cell types, such as γδT cells, natural killer cells, natural killer T cells, and myeloid cells has yet received relatively little attention, although these cell types possess unique features that may aid in surmounting some of the hurdles CAR-T-cell therapy currently faces. This review focuses on CAR therapy using effectors beyond conventional αβT cells and discusses those strategies against the backdrop of developing a safe, powerful, and durable cancer therapy.
Collapse
Affiliation(s)
- Dennis C Harrer
- 1 Department of Dermatology, Universitätsklinikum Erlangen and Faculty of Medicine, Friedrich-Alexander-Universität Erlangen-Nürnberg , Erlangen, Germany
| | - Jan Dörrie
- 1 Department of Dermatology, Universitätsklinikum Erlangen and Faculty of Medicine, Friedrich-Alexander-Universität Erlangen-Nürnberg , Erlangen, Germany
| | - Niels Schaft
- 1 Department of Dermatology, Universitätsklinikum Erlangen and Faculty of Medicine, Friedrich-Alexander-Universität Erlangen-Nürnberg , Erlangen, Germany
| |
Collapse
|
34
|
Mayor M, Zeltsman M, McGee E, Adusumilli PS. A regional approach for CAR T-cell therapy for mesothelioma: from mouse models to clinical trial. Immunotherapy 2018; 8:491-4. [PMID: 27140404 DOI: 10.2217/imt-2016-0008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Marissa Mayor
- Thoracic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Masha Zeltsman
- Thoracic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Erin McGee
- Thoracic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Prasad S Adusumilli
- Thoracic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| |
Collapse
|
35
|
Abstract
In recent years, chimeric antigen receptor (CAR) T-cell therapy has become popular in immunotherapy, particularly after its tremendous success in the treatment of lineage-restricted hematologic cancers. However, the application of CAR T-cell therapy for solid tumors has not reached its full potential because of the lack of specific tumor antigens and inhibitory factors in suppressive tumor microenvironment (TME) (e.g., programmed death ligand-1, myeloid-derived suppressor cells, and transforming growth factor-β). In this review, we include some limitations in CAR design, such as tumor heterogeneity, indefinite spatial distance between CAR T-cell and its target cell, and suppressive TME. We also summarize some new approaches to overcome these hurdles, including targeting neoantigens and/or multiple antigens at once and depleting some inhibitory factors.
Collapse
Affiliation(s)
- Yuedi Wang
- Department of Immunology, School of Basic Medical Sciences, Fudan University, Shanghai, China.,Biotherapy Research Center, Fudan University, Shanghai, China
| | - Feifei Luo
- Biotherapy Research Center, Fudan University, Shanghai, China.,Department of Digestive Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Jiao Yang
- Department of Immunology, School of Basic Medical Sciences, Fudan University, Shanghai, China.,Biotherapy Research Center, Fudan University, Shanghai, China
| | - Chujun Zhao
- Northfield Mount Hermon School, Mount Hermon, MA, United States
| | - Yiwei Chu
- Department of Immunology, School of Basic Medical Sciences, Fudan University, Shanghai, China.,Biotherapy Research Center, Fudan University, Shanghai, China
| |
Collapse
|
36
|
Kuczma MP, Ding ZC, Li T, Habtetsion T, Chen T, Hao Z, Bryan L, Singh N, Kochenderfer JN, Zhou G. The impact of antibiotic usage on the efficacy of chemoimmunotherapy is contingent on the source of tumor-reactive T cells. Oncotarget 2017; 8:111931-111942. [PMID: 29340102 PMCID: PMC5762370 DOI: 10.18632/oncotarget.22953] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 11/26/2017] [Indexed: 12/11/2022] Open
Abstract
In recent years the combined use of chemotherapy and immunotherapy, collectively termed chemoimmunotherapy, has emerged as a promising treatment option for patients with cancer. Antibiotics are commonly used to reduce infection-related complications in patients undergoing chemotherapy. Intriguingly, accumulating evidence has implicated gut microbiota as a critical determinant of host antitumor immune responses, raising the question as to whether the use of broad-spectrum antibiotics would invariably diminish tumor response to chemoimmunotherapies. We investigated the impact of antibiotics on the therapeutic outcomes of cyclophosphamide (CTX) chemotherapy and adoptive T-cell therapy (ACT) where CTX was used as the host-conditioning regimen in mice. We show that antibiotic prophylaxis dampened the endogenous T cell responses elicited by CTX, and reduced the efficacy of CTX against B-cell lymphoma. In the ACT setting, antibiotics administration impaired the therapeutic effects of adoptively transferred tumor-specific CD4+ T cells in mice with implanted colorectal tumors. In contrast, long-term antibiotic exposure did not affect the efficacy of ACT using CD19-targeting chimeric antigen receptor (CAR) T cells in mice with systemic B-cell lymphoma, although it correlated with prolonged CAR expression and sustained B-cell aplasia. Our study demonstrates that chemoimmunotherapies may have variable reliance on intestinal microbiota for T cell activation and function, and thus have different sensitivities to antibiotic prophylaxis. These findings may have implications for the judicial use of antibiotics in cancer patients receiving chemoimmunotherapies.
Collapse
Affiliation(s)
- Michal P Kuczma
- Georgia Cancer Center, Augusta University, Augusta, Georgia, USA.,Current/Present address: Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia, USA
| | - Zhi-Chun Ding
- Georgia Cancer Center, Augusta University, Augusta, Georgia, USA
| | - Tao Li
- Department of Oncology and Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Province, PR China
| | | | - Tingting Chen
- Georgia Cancer Center, Augusta University, Augusta, Georgia, USA
| | - Zhonglin Hao
- Georgia Cancer Center, Augusta University, Augusta, Georgia, USA
| | - Locke Bryan
- Hematology/Oncology, Georgia Cancer Center, Augusta University, Augusta, Georgia, USA
| | - Nagendra Singh
- Department of Biochemistry and Molecular Biology, Augusta University, Augusta, Georgia, USA
| | - James N Kochenderfer
- Experimental Transplantation and Immunology Branch, National Cancer Institute, Bethesda, Maryland, USA
| | - Gang Zhou
- Georgia Cancer Center, Augusta University, Augusta, Georgia, USA
| |
Collapse
|
37
|
Le TP, Thai TH. The State of Cellular Adoptive Immunotherapy for Neuroblastoma and Other Pediatric Solid Tumors. Front Immunol 2017; 8:1640. [PMID: 29225605 PMCID: PMC5705544 DOI: 10.3389/fimmu.2017.01640] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 11/09/2017] [Indexed: 01/21/2023] Open
Abstract
Research on adult cancer immunotherapy is proceeding at a rapid pace resulting in an impressive success rate exemplified by a few high profile cases. However, this momentum is not readily extended to pediatric immunotherapy, and it is not for lack of trying. Though reasons for the slower advance are not apparent, some issues can be raised. Pediatric cancer patients represent a distinct demographic group whose immune system is inherently different from that of mature adults. Treating pediatric patients with immunotherapy designed for adults may not yield objective clinical responses. Here, we will present an update on adoptive T-cell and natural killer-cell therapies for neuroblastoma and other childhood solid tumors. Additionally, we will delineate key differences between human fetal/neonatal and adult immune systems. We hope this will generate interests leading to the discussion of potential future directions for improving adoptive cancer immunotherapy for children.
Collapse
Affiliation(s)
- Thanh-Phuong Le
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - To-Ha Thai
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| |
Collapse
|
38
|
Ho P, Ede C, Chen YY. Modularly Constructed Synthetic Granzyme B Molecule Enables Interrogation of Intracellular Proteases for Targeted Cytotoxicity. ACS Synth Biol 2017; 6:1484-1495. [PMID: 28510446 DOI: 10.1021/acssynbio.6b00392] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Targeted therapies promise to increase the safety and efficacy of treatments against diseases ranging from cancer to viral infections. However, the vast majority of targeted therapeutics relies on the recognition of extracellular biomarkers, which are rarely restricted to diseased cells and are thus prone to severe and sometimes-fatal off-target toxicities. In contrast, intracellular antigens present a diverse yet underutilized repertoire of disease markers. Here, we report a protein-based therapeutic platform-termed Cytoplasmic Oncoprotein VErifier and Response Trigger (COVERT)-which enables the interrogation of intracellular proteases to trigger targeted cytotoxicity. COVERT molecules consist of the cytotoxic protein granzyme B (GrB) fused to an inhibitory N-terminal peptide, which can be removed by researcher-specified proteases to activate GrB function. We demonstrate that fusion of a small ubiquitin-like modifier 1 (SUMO1) protein to GrB yields a SUMO-GrB molecule that is specifically activated by the cancer-associated sentrin-specific protease 1 (SENP1). SUMO-GrB selectively triggers apoptotic phenotypes in HEK293T cells that overexpress SENP1, and it is highly sensitive to different SENP1 levels across cell lines. We further demonstrate the rational design of additional COVERT molecules responsive to enterokinase (EK) and tobacco etch virus protease (TEVp), highlighting the COVERT platform's modularity and adaptability to diverse protease targets. As an initial step toward engineering COVERT-T cells for adoptive T-cell therapy, we verified that primary human T cells can express, package, traffic, and deliver engineered GrB molecules in response to antigen stimulation. Our findings set the foundation for future intracellular-antigen-responsive therapeutics that can complement surface-targeted therapies.
Collapse
Affiliation(s)
- Patrick Ho
- Department of Chemical and
Biomolecular Engineering, University of California—Los Angeles, Los Angeles, California 90095, United States
| | - Christopher Ede
- Department of Chemical and
Biomolecular Engineering, University of California—Los Angeles, Los Angeles, California 90095, United States
| | - Yvonne Y. Chen
- Department of Chemical and
Biomolecular Engineering, University of California—Los Angeles, Los Angeles, California 90095, United States
| |
Collapse
|
39
|
Abstract
Synovial sarcoma is a rare soft tissue sarcoma characterized by a t(X;18) translocation, which results in a SYT-SSX gene fusion. In the metastatic setting, chemotherapy has limited, durable efficacy prompting the necessity for new therapeutic modalities. One emerging new strategy involves T-cell-directed therapy such as tumor-infiltrating lymphocytes or the development of T cells that are genetically engineered to express a T-cell receptor against a cancer testis antigen. Of these approaches, engineered T cells that recognize NY-ESO-1 are the furthest along in development. Completed and on-going clinical trials have shown promise and there are efforts to continue to optimize the current approach.
Collapse
Affiliation(s)
- Matthew Dallos
- New York University Langone Medical Center, NY 10016, USA
| | - William D Tap
- Memorial Sloan Kettering Cancer Center, NY 10065, USA.,Weill Cornell Medical College, NY 10065, USA
| | - Sandra P D'Angelo
- Memorial Sloan Kettering Cancer Center, NY 10065, USA.,Weill Cornell Medical College, NY 10065, USA
| |
Collapse
|
40
|
Abstract
In this article, we review ongoing novel clinical trials currently investigating immunotherapeutic approaches for patients with malignant pleural mesothelioma (MPM). There is a dearth of effective therapeutic options for patients diagnosed with MPM and metastatic cancers of the pleura; these diseases have an estimated annual incidence of 150,000. Modulating the immune microenvironment to promote antitumor immune responses by systemically and regionally delivered therapeutic agents is an active area of investigation. We have conducted a review of the clinical trials database for clinical trials actively recruiting MPM patients. We focused on novel therapeutic agents administered either systemically or intrapleurally to modulate the tumor immune microenvironment. Herein, we have summarized the published results of early phase clinical trials. A total of 43 clinical trials met our inclusion criteria. These trials are investigating immunologic agents (n=20) and antibody directed therapies (n=23). The regional intrapleural delivery technique (6 trials) is used to administer chemotherapy agents (3 of 6 trials) and immunotherapy agents (3 of 6 trials), including chimeric antigen receptor T cells (1 of 6 trials). Current clinical trials modulating the MPM immune microenvironment and the combination of these novel agents with standard of care therapy provide a promising area of investigation for MPM therapy.
Collapse
Affiliation(s)
- Zachary E Tano
- Thoracic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Navin K Chintala
- Thoracic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Xiaoyu Li
- Thoracic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Prasad S Adusumilli
- Thoracic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| |
Collapse
|
41
|
Lamers CH, Klaver Y, Gratama JW, Sleijfer S, Debets R. Treatment of metastatic renal cell carcinoma (mRCC) with CAIX CAR-engineered T-cells-a completed study overview. Biochem Soc Trans 2016; 44:951-9. [PMID: 27284065 DOI: 10.1042/BST20160037] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Indexed: 11/17/2022]
Abstract
We studied safety and proof of concept of a phase I/II trial with chimeric antigen receptor (CAR) T-cells in patients with metastatic renal cell carcinoma (mRCC). The CAR was based on the G250 mAb that recognized an epitope of carboxy-anhydrase-IX (CAIX). Twelve patients with CAIX+ mRCC were treated in three cohorts with a maximum of 10 daily infusions of 2×10(7) to 2×10(9) CAR T-cells. Circulating CAR T-cells were transiently detectable in all patients and maintained antigen-specific immune functions following their isolation post-treatment. Blood cytokine profiles mirrored CAR T-cell presence and in vivo activity. Unfortunately, patients developed anti-CAR T-cell antibodies and cellular immune responses. Moreover, CAR T-cell infusions induced liver enzyme disturbances reaching CTC grades 2-4, which necessitated cessation of treatment in four out of eight patients (cohort 1+2). Examination of liver biopsies revealed T-cell infiltration around bile ducts and CAIX expression on bile duct epithelium, adding to the notion of on-target toxicity. No such toxicities were observed in four patients that were pretreated with G250 mAb (cohort 3). The study was stopped due to the advent of competing treatments before reaching therapeutic or maximum tolerated dose in cohort 3. No clinical responses have been recorded. Despite that, from this trial numerous recommendations for future trials and their immune monitoring could be formulated, such as choice of the target antigen, format and immunogenicity of receptor and how the latter relates to peripheral T-cell persistence.
Collapse
|
42
|
Abstract
Development of "immune-based targeted therapy" in oncology has limited experience with signal pathway modulation. However, as we have become better versed in understanding immune function related to anticancer response, "hints" of specific targets associated with sensitivity and resistance have been identified with targeted immune therapy. This brief review summarizes the relationship of several targeted immune therapeutics and activity associated clinical responsiveness.
Collapse
Affiliation(s)
| | - John Nemunaitis
- Gradalis, Inc., Dallas, TX, USA.,Mary Crowley Cancer Research Center, Dallas, TX, USA
| |
Collapse
|
43
|
Chang ZL, Chen YY. CARs: Synthetic Immunoreceptors for Cancer Therapy and Beyond. Trends Mol Med 2017; 23:430-50. [PMID: 28416139 DOI: 10.1016/j.molmed.2017.03.002] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Revised: 03/13/2017] [Accepted: 03/14/2017] [Indexed: 02/07/2023]
Abstract
Chimeric antigen receptors (CARs) are versatile synthetic receptors that provide T cells with engineered specificity. Clinical success in treating B-cell malignancies has demonstrated the therapeutic potential of CAR-T cells against cancer, and efforts are underway to expand the use of engineered T cells to the treatment of diverse medical conditions, including infections and autoimmune diseases. Here, we review current understanding of the molecular properties of CARs, how this knowledge informs the rational design and characterization of novel receptors, the successes and shortcomings of CAR-T cells in the clinic, and emerging solutions for the continued improvement of CAR-T cell therapy.
Collapse
|
44
|
Abstract
INTRODUCTION Cytomegalovirus (CMV) still causes significant morbidity and mortality in patients given allogeneic hematopoietic stem cell transplantation (HSCT). Despite effective pharmacotherapy, potentially life-threatening CMV disease occurs nowadays in up to 10% of HSCT recipients; moreover, routinely used anti-CMV agents have been shown to be associated with morbidity. Areas covered: This review examines different issues related to diagnosis and management of CMV infection in HSCT recipients, paying particular attention to the monitoring of CMV-specific immune recovery, approaches of adoptive cell therapy and new antiviral drugs. Expert commentary: Despite advances in diagnostic tests and treatment, there is still room for refining management of CMV in HSCT recipients. Immunological monitoring should be associated in the future to virological monitoring. The safety profile and efficacy of new anti-CMV agents should be compared with that of standard-of-care drugs. Donor-derived, pathogen-specific T cells adoptively transferred after transplantation could contribute to reduce the impact of CMV infection on patient's outcome.
Collapse
Affiliation(s)
- Franco Locatelli
- a Dipartimento di Oncoematologia Pediatrica , IRCSS Ospedale Pediatrico Bambino Gesù , Rome , Italy.,b Dipartimento di Scienze Pediatriche , Università di Pavia , Pavia , Italy
| | - Alice Bertaina
- a Dipartimento di Oncoematologia Pediatrica , IRCSS Ospedale Pediatrico Bambino Gesù , Rome , Italy
| | - Valentina Bertaina
- a Dipartimento di Oncoematologia Pediatrica , IRCSS Ospedale Pediatrico Bambino Gesù , Rome , Italy
| | - Pietro Merli
- a Dipartimento di Oncoematologia Pediatrica , IRCSS Ospedale Pediatrico Bambino Gesù , Rome , Italy
| |
Collapse
|
45
|
Uslu U, Schuler G, Dörrie J, Schaft N. Combining a chimeric antigen receptor and a conventional T-cell receptor to generate T cells expressing two additional receptors (TETARs) for a multi-hit immunotherapy of melanoma. Exp Dermatol 2016; 25:872-879. [PMID: 27246630 DOI: 10.1111/exd.13095] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/20/2016] [Indexed: 12/20/2022]
Abstract
The adoptive transfer of engineered T cells represents an important approach in immunotherapy of melanoma. However, relapse of the tumor can occur due to immune-escape mechanisms developed by the tumor cells, for example antigen loss, downregulation of the major histocompatibility complex presentation machinery and defects in antigen processing. To counteract these mechanisms, we combined a T-cell receptor and a chimeric antigen receptor, specific for different common melanoma antigens, gp100 (PMEL) and MCSP (HMW-MAA), to generate functional CD8+ T cells expressing two additional receptors (TETARs) by electroporation of receptor-encoding mRNA. These TETARs produced cytokines and were lytic upon recognition of each of their cognate antigens, while no reciprocal inhibition of the receptors occurred. When stimulated with target cells, which express both antigens, an enhanced effect was suggested. The confirmation that chimeric antigen receptors and T-cell receptors can be functionally combined opens up new avenues in cancer immunotherapy, and the generation of TETARs helps by-passing major mechanisms by which tumor cells escape immune recognition.
Collapse
Affiliation(s)
- Ugur Uslu
- Department of Dermatology, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Gerold Schuler
- Department of Dermatology, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Jan Dörrie
- Department of Dermatology, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Niels Schaft
- Department of Dermatology, Universitätsklinikum Erlangen, Erlangen, Germany.
| |
Collapse
|
46
|
Horlock C, Skulte A, Mitra A, Stansfield A, Bhandari S, Ip W, Qasim W, Lowdell MW, Patel S, Friedetzky A, Purbhoo MA, Newton K. Manufacture of GMP-compliant functional adenovirus-specific T-cell therapy for treatment of post-transplant infectious complications. Cytotherapy 2016; 18:1209-18. [PMID: 27424147 DOI: 10.1016/j.jcyt.2016.06.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 06/07/2016] [Accepted: 06/11/2016] [Indexed: 11/17/2022]
Abstract
BACKGROUND AIMS In pediatric patients, adenovirus (ADV) reactivation after allogeneic hematopoietic stem cell transplantation (allo HSCT) is a major cause of morbidity and mortality. For patients who do not respond to antiviral drug therapy, a new treatment approach using ADV-specific T cells can present a promising alternative. Here we describe the clinical scale Good Manufacturing Practice (GMP)-compliant manufacture and characterization of 40 ADV-specific T-cell products, Cytovir ADV, which are currently being tested in a multi-center phase I/IIa clinical trial. This process requires minimal intervention, is high yield, and results in a pure T-cell product that is functional. METHODS Mononuclear cells (2 × 10(7)) were cultured in a closed system in the presence of GMP-grade ADV peptide pool and cytokines for 10 days. On day 10, the T-cell product was harvested, washed in a closed system, counted and assessed for purity and potency. Additional characterization was carried out where cell numbers allowed. RESULTS Thirty-eight of 40 products (95%) met all release criteria. Median purity of the cell product was 88.3% CD3+ cells with a median yield of 2.9 × 10(7) CD3+ cells. Potency analyses showed a median ADV-specific interferon (IFN)γ response of 5.9% of CD3+ and 2345 IFNγ spot-forming cells/million. CD4 and CD8 T cells were capable of proliferating in response to ADV (63.3 and 56.3%, respectively). These virus-specific T cells (VST) were heterogenous, containing both effector memory and central memory T cells. In an exemplar patient with ADV viremia treated in the open ASPIRE trial, ADV-specific T-cell response was detected by IFNγ enzyme-linked immunospot from 13 days post-infusion. ADV DNA levels declined following cellular therapy and were below level of detection from day 64 post-infusion onward. CONCLUSIONS The clinical-scale GMP-compliant One Touch manufacturing system is feasible and yields functional ADV-specific T cells at clinically relevant doses.
Collapse
Affiliation(s)
| | | | | | | | | | - Winnie Ip
- Great Ormond Street Hospital, London, United Kingdom
| | - Waseem Qasim
- Great Ormond Street Hospital, London, United Kingdom
| | - Mark W Lowdell
- Research Department of Haematology, Cancer Institute, UCL, Royal Free Hospital, London, United Kingdom
| | | | | | | | | |
Collapse
|
47
|
Abou-El-Enein M, Bauer G, Medcalf N, Volk HD, Reinke P. Putting a price tag on novel autologous cellular therapies. Cytotherapy 2016; 18:1056-1061. [PMID: 27288308 DOI: 10.1016/j.jcyt.2016.05.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 05/05/2016] [Accepted: 05/09/2016] [Indexed: 12/24/2022]
Abstract
Cell therapies, especially autologous therapies, pose significant challenges to researchers who wish to move from small, probably academic, methods of manufacture to full commercial scale. There is a dearth of reliable information about the costs of operation, and this makes it difficult to predict with confidence the investment needed to translate the innovations to the clinic, other than as small-scale, clinician-led prescriptions. Here, we provide an example of the results of a cost model that takes into account the fixed and variable costs of manufacture of one such therapy. We also highlight the different factors that influence the product final pricing strategy. Our findings illustrate the need for cooperative and collective action by the research community in pre-competitive research to generate the operational models that are much needed to increase confidence in process development for these advanced products.
Collapse
Affiliation(s)
- Mohamed Abou-El-Enein
- Berlin-Brandenburg Center for Regenerative Therapies, Charité University Medicine, Campus Virchow, Berlin, Germany; Department of Nephrology and Internal Intensive Care, Charité-University Medicine, Campus Virchow, Berlin, Germany.
| | - Gerhard Bauer
- Institute for Regenerative Cures, University of California Davis, Sacramento, CA, USA
| | - Nicholas Medcalf
- Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Loughborough, UK
| | - Hans-Dieter Volk
- Berlin-Brandenburg Center for Regenerative Therapies, Charité University Medicine, Campus Virchow, Berlin, Germany; Institute of Medical Immunology, Charité University Medicine, Campus Virchow, Berlin, Germany
| | - Petra Reinke
- Berlin-Brandenburg Center for Regenerative Therapies, Charité University Medicine, Campus Virchow, Berlin, Germany; Department of Nephrology and Internal Intensive Care, Charité-University Medicine, Campus Virchow, Berlin, Germany
| |
Collapse
|
48
|
Patel S, Jones RB, Nixon DF, Bollard CM. T-cell therapies for HIV: Preclinical successes and current clinical strategies. Cytotherapy 2016; 18:931-942. [PMID: 27265874 DOI: 10.1016/j.jcyt.2016.04.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Accepted: 04/19/2016] [Indexed: 12/21/2022]
Abstract
Although antiretroviral therapy (ART) has been successful in controlling HIV infection, it does not provide a permanent cure, requires lifelong treatment, and HIV-positive individuals are left with social concerns such as stigma. The recent application of T cells to treat cancer and viral reactivations post-transplant offers a potential strategy to control HIV infection. It is known that naturally occurring HIV-specific T cells can inhibit HIV initially, but this response is not sustained in the majority of people living with HIV. Genetically modifying T cells to target HIV, resist infection, and persist in the immunosuppressive environment found in chronically infected HIV-positive individuals might provide a therapeutic solution for HIV. This review focuses on successful preclinical studies and current clinical strategies using T-cell therapy to control HIV infection and mediate a functional cure solution.
Collapse
Affiliation(s)
- Shabnum Patel
- Institute for Biomedical Sciences, The George Washington University, Washington, DC, USA; Department of Microbiology, Immunology, and Tropical Medicine, The George Washington University, Washington, DC, USA; Program for Cell Enhancement and Technologies for Immunotherapy, Children's National Health System, Washington, DC, USA
| | - R Brad Jones
- Department of Microbiology, Immunology, and Tropical Medicine, The George Washington University, Washington, DC, USA
| | - Douglas F Nixon
- Department of Microbiology, Immunology, and Tropical Medicine, The George Washington University, Washington, DC, USA
| | - Catherine M Bollard
- Department of Microbiology, Immunology, and Tropical Medicine, The George Washington University, Washington, DC, USA; Program for Cell Enhancement and Technologies for Immunotherapy, Children's National Health System, Washington, DC, USA.
| |
Collapse
|
49
|
Ede C, Chen X, Lin MY, Chen YY. Quantitative Analyses of Core Promoters Enable Precise Engineering of Regulated Gene Expression in Mammalian Cells. ACS Synth Biol 2016; 5:395-404. [PMID: 26883397 DOI: 10.1021/acssynbio.5b00266] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Inducible transcription systems play a crucial role in a wide array of synthetic biology circuits. However, the majority of inducible promoters are constructed from a limited set of tried-and-true promoter parts, which are susceptible to common shortcomings such as high basal expression levels (i.e., leakiness). To expand the toolbox for regulated mammalian gene expression and facilitate the construction of mammalian genetic circuits with precise functionality, we quantitatively characterized a panel of eight core promoters, including sequences with mammalian, viral, and synthetic origins. We demonstrate that this selection of core promoters can provide a wide range of basal gene expression levels and achieve a gradient of fold-inductions spanning 2 orders of magnitude. Furthermore, commonly used parts such as minimal CMV and minimal SV40 promoters were shown to achieve robust gene expression upon induction, but also suffer from high levels of leakiness. In contrast, a synthetic promoter, YB_TATA, was shown to combine low basal expression with high transcription rate in the induced state to achieve significantly higher fold-induction ratios compared to all other promoters tested. These behaviors remain consistent when the promoters are coupled to different genetic outputs and different response elements, as well as across different host-cell types and DNA copy numbers. We apply this quantitative understanding of core promoter properties to the successful engineering of human T cells that respond to antigen stimulation via chimeric antigen receptor signaling specifically under hypoxic environments. Results presented in this study can facilitate the design and calibration of future mammalian synthetic biology systems capable of precisely programmed functionality.
Collapse
Affiliation(s)
- Christopher Ede
- Department of Chemical and
Biomolecular Engineering, University of California—Los Angeles, Los Angeles, California 90095, United States
| | - Ximin Chen
- Department of Chemical and
Biomolecular Engineering, University of California—Los Angeles, Los Angeles, California 90095, United States
| | - Meng-Yin Lin
- Department of Chemical and
Biomolecular Engineering, University of California—Los Angeles, Los Angeles, California 90095, United States
| | - Yvonne Y. Chen
- Department of Chemical and
Biomolecular Engineering, University of California—Los Angeles, Los Angeles, California 90095, United States
| |
Collapse
|
50
|
Ikeda H. T-cell adoptive immunotherapy using tumor-infiltrating T cells and genetically engineered TCR-T cells. Int Immunol 2016; 28:349-53. [PMID: 27127191 DOI: 10.1093/intimm/dxw022] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Accepted: 04/26/2016] [Indexed: 12/13/2022] Open
Abstract
Immunotherapy has received the expectation that it should contribute to the therapy of cancer patients for >100 years. At long last, recent clinical trials of immunotherapy with immune checkpoint inhibitors and adoptive cell therapy with genetically engineered T cells have reported their remarkable efficacies. Nowadays, it is expected that T-cell adoptive immunotherapy can not only control tumor progression but even cure cancer in some patients. Conversely, severe adverse events associated with efficacy have frequently been reported in clinical trials, suggesting that the assessment and control of safety will be indispensable in the future development of the therapy. New approaches in T-cell adoptive immunotherapy such as reduction of adverse events, targeting of new antigens or utilization of allogeneic cells will open a new gate for less harmful and more effective immunological treatment of cancer patients.
Collapse
Affiliation(s)
- Hiroaki Ikeda
- Department of Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| |
Collapse
|