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Sagnella SM, White AL, Yeo D, Saxena P, van Zandwijk N, Rasko JEJ. Locoregional delivery of CAR-T cells in the clinic. Pharmacol Res 2022; 182:106329. [PMID: 35772645 DOI: 10.1016/j.phrs.2022.106329] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/03/2022] [Accepted: 06/24/2022] [Indexed: 12/26/2022]
Abstract
Cellular therapies utilizing T cells expressing chimeric antigen receptors (CARs) have garnered significant interest due to their clinical success in hematological malignancies. Unfortunately, this success has not been replicated in solid tumors, with only a small fraction of patients achieving complete responses. A number of obstacles to effective CAR-T cell therapy in solid tumors have been identified including tumor antigen heterogeneity, poor T cell fitness and persistence, inefficient trafficking and inability to penetrate into the tumor, immune-related adverse events due to on-target/off-tumor toxicity, and the immunosuppressive tumor microenvironment. Many preclinical studies have focused on improvements to CAR design to try to overcome some of these hurdles. However, a growing body of work has also focused on the use of local and/or regional delivery of CAR-T cells as a means to overcome poor T cell trafficking and inefficient T cell penetration into tumors. Most trials that incorporate locoregional delivery of CAR-T cells have targeted tumors of the central nervous system - repurposing an Ommaya/Rickham reservoir for repeated delivery of cells directly to the tumor cavity or ventricles. Hepatic artery infusion is another technique used for locoregional delivery to hepatic tumors. Locoregional delivery theoretically permits increased numbers of CAR-T cells within the tumor while reducing the risk of immune-related systemic toxicity. Studies to date have been almost exclusively phase I. The growing body of evidence indicates that locoregional delivery of CAR-T cells is both safe and feasible. This review focuses specifically on the use of locoregional delivery of CAR-T cells in clinical trials.
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Affiliation(s)
- Sharon M Sagnella
- Cell & Molecular Therapies, Royal Prince Alfred Hospital, Sydney Local Health District, Camperdown 2050, Australia
| | - Amy L White
- Faculty of Medicine and Health, The University of Sydney, Camperdown 2050, Australia
| | - Dannel Yeo
- Cell & Molecular Therapies, Royal Prince Alfred Hospital, Sydney Local Health District, Camperdown 2050, Australia; Faculty of Medicine and Health, The University of Sydney, Camperdown 2050, Australia; Li Ka Shing Cell & Gene Therapy Program, The University of Sydney, Camperdown 2050, Australia
| | - Payal Saxena
- Faculty of Medicine and Health, The University of Sydney, Camperdown 2050, Australia; Division of Gastroenterology, Department of Medicine, Royal Prince Alfred Hospital, Sydney Local Health District, Camperdown 2050, Australia
| | - Nico van Zandwijk
- Faculty of Medicine and Health, The University of Sydney, Camperdown 2050, Australia; Li Ka Shing Cell & Gene Therapy Program, The University of Sydney, Camperdown 2050, Australia; Concord Repatriation General Hospital, Sydney Local Health District, Concord 2139, Australia
| | - John E J Rasko
- Cell & Molecular Therapies, Royal Prince Alfred Hospital, Sydney Local Health District, Camperdown 2050, Australia; Faculty of Medicine and Health, The University of Sydney, Camperdown 2050, Australia; Li Ka Shing Cell & Gene Therapy Program, The University of Sydney, Camperdown 2050, Australia; Gene and Stem Cell Therapy Program Centenary Institute, The University of Sydney, Camperdown 2050, Australia.
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Cui G, Wu J, Lin J, Liu W, Chen P, Yu M, Zhou D, Yao G. Graphene-based nanomaterials for breast cancer treatment: promising therapeutic strategies. J Nanobiotechnology 2021; 19:211. [PMID: 34266419 PMCID: PMC8281664 DOI: 10.1186/s12951-021-00902-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 05/20/2021] [Indexed: 02/07/2023] Open
Abstract
Breast cancer is the most common malignancy in women, and its incidence increases annually. Traditional therapies have several side effects, leading to the urgent need to explore new smart drug-delivery systems and find new therapeutic strategies. Graphene-based nanomaterials (GBNs) are potential drug carriers due to their target selectivity, easy functionalization, chemosensitization and high drug-loading capacity. Previous studies have revealed that GBNs play an important role in fighting breast cancer. Here, we have summarized the superior properties of GBNs and modifications to shape GBNs for improved function. Then, we focus on the applications of GBNs in breast cancer treatment, including drug delivery, gene therapy, phototherapy, and magnetothermal therapy (MTT), and as a platform to combine multiple therapies. Their advantages in enhancing therapeutic effects, reducing the toxicity of chemotherapeutic drugs, overcoming multidrug resistance (MDR) and inhibiting tumor metastasis are highlighted. This review aims to help evaluate GBNs as therapeutic strategies and provide additional novel ideas for their application in breast cancer therapy.
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Affiliation(s)
- Guangman Cui
- Breast Center, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Junrong Wu
- Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Jiaying Lin
- Breast Center, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Wenjing Liu
- Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Peixian Chen
- Department of Breast Surgery, The First People's Hospital of Foshan, Sun Yat-Sen University, Guangdong, China
| | - Meng Yu
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Dan Zhou
- Department of Breast Surgery, The First People's Hospital of Foshan, Sun Yat-Sen University, Guangdong, China.
| | - Guangyu Yao
- Breast Center, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China.
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Potentiating Antitumor Efficacy Through Radiation and Sustained Intratumoral Delivery of Anti-CD40 and Anti-PDL1. Int J Radiat Oncol Biol Phys 2020; 110:492-506. [PMID: 32768562 DOI: 10.1016/j.ijrobp.2020.07.2326] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 05/29/2020] [Accepted: 07/29/2020] [Indexed: 12/13/2022]
Abstract
PURPOSE Mounting evidence demonstrates that combining radiation therapy (RT) with immunotherapy can reduce tumor burden in a subset of patients. However, conventional systemic delivery of immunotherapeutics is often associated with significant adverse effects, which force treatment cessation. The aim of this study was to investigate a minimally invasive therapeutics delivery approach to improve clinical response while attenuating toxicity. METHODS AND MATERIALS We used a nanofluidic drug-eluting seed (NDES) for sustained intratumoral delivery of combinational antibodies CD40 and PDL1. To enhance immune and tumor response, we combined the NDES intratumoral platform with RT to treat the 4T1 murine model of advanced triple negative breast cancer. We compared the efficacy of NDES against intraperitoneal administration, which mimics conventional systemic treatment. Tumor growth was recorded, and local and systemic immune responses were assessed via imaging mass cytometry and flow cytometry. Livers and lungs were histologically analyzed for evaluation of toxicity and metastasis, respectively. RESULTS The combination of RT and sustained intratumoral immunotherapy delivery of CD40 and PDL1 via NDES (NDES CD40/PDL1) showed an increase in both local and systemic immune response. In combination with RT, NDES CD40/PDL1 achieved significant tumor burden reduction and liver inflammation mitigation compared with systemic treatment. Importantly, our treatment strategy boosted the abscopal effect toward attenuating lung metastatic burden. CONCLUSIONS Overall, our study demonstrated superior efficacy of combination treatment with RT and sustained intratumoral immunotherapy via NDES, offering promise for improving therapeutic index and clinical response.
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Nanofluidic drug-eluting seed for sustained intratumoral immunotherapy in triple negative breast cancer. J Control Release 2018; 285:23-34. [DOI: 10.1016/j.jconrel.2018.06.035] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 06/15/2018] [Accepted: 06/28/2018] [Indexed: 12/11/2022]
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Moviglia GA, Carrizo AG, Varela G, Gaeta CA, Paes de Lima A, Farina P, Molina H. Preliminary report on tumor stem cell/B cell hybridoma vaccine for recurrent glioblastoma multiforme. Hematol Oncol Stem Cell Ther 2010; 1:3-13. [PMID: 20063522 DOI: 10.1016/s1658-3876(08)50054-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Glioblastoma multiforme (GBM), the most aggressive glioma, presents with a rapid evolution and relapse within the first year, which is attributed to the persistence of tumor stem cells (TSC) and the escape of immune surveillance. Mixed leukocyte culture (MLC) cytoimplant has been shown to function as a powerful intratumor pro-inflammatory cytokine pump. Tumor B-cell hybridoma (TBH) vaccines have been shown to function as antigen-presenting cells. We evaluated the toxicity and efficiency of each treatment alone and in combination. PATIENTS AND METHODS In an open study, 12 consecutive patients were evenly divided into 3 groups, each group receiving 3 different treatments. Patients in Group 1 were treated, after diagnosis, with debulking surgery (DS)+radiotherapy (Rx), and after the first relapse underwent DS+MLC treatment. Patients in Group 2 were similarly treated but after the first relapse underwent DS+MLC+TBH. Finally, patients in Group 3 were similarly treated but after the first relapse underwent DS+TBH. Nestin PAP stain assessed TSC participation in TBH. RESULTS Treatment with MLC had strong and rapid therapeutic effects, but was limited in duration and induced various degrees of brain inflammation. Treatment with MLC+TBH acted synergistically, provoking a rapid, strong and lasting therapeutic response but also generating different degrees of brain inflammation. A lasting therapeutic effect without generating high degrees of brain inflammation occurred in patients treated with TBH vaccine alone. CONCLUSION TSC vaccine consisting of TBH alone seems to have potent adjuvant reactions overcoming both persistence of tumor stem cells and immune escape of GBM without provoking an encephalitic reaction.
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Abstract
Recombinant interferon-alpha (IFN-alpha) was approved by regulatory agencies in many countries in 1986. As the first biotherapeutic approved, IFN-alpha paved the way for the development of many other cytokines and growth factors. Nevertheless, understanding the functions of the multitude of human IFNs and IFN-like cytokines has just touched the surface. This review summarizes the history of the purification of human IFNs and the key aspects of our current state of knowledge of human IFN genes, proteins, and receptors. All the known IFNs and IFN-like cytokines are described [IFN-alpha, IFN-beta, IFN-epsilon, IFN-kappa, IFN-omega, IFN-delta, IFN-tau, IFN-gamma, limitin, interleukin-28A (IL-28A), IL-28B, and IL-29] as well as their receptors and signal transduction pathways. The biological activities and clinical applications of the proteins are discussed. An extensive section on the evolution of these molecules provides some new insights into the development of these proteins as major elements of innate immunity. The overall structure of the IFNs is put into perspective in relation to their receptors and functions.
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Affiliation(s)
- Sidney Pestka
- Department of Molecular Genetics, Microbiology, and Immunology, Robert Wood Johnson Medical School, University of Medicine and Dentistry of New Jersey, Piscataway, NJ 08854-5635, USA.
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Walker PR, Calzascia T, de Tribolet N, Dietrich PY. T-cell immune responses in the brain and their relevance for cerebral malignancies. BRAIN RESEARCH. BRAIN RESEARCH REVIEWS 2003; 42:97-122. [PMID: 12738053 DOI: 10.1016/s0165-0173(03)00141-3] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In order that cellular immune responses afford protection without risk to sensitive normal tissue, they must be adapted to individual tissues of the body. Nowhere is this more critical than for the brain, where various passive and active mechanisms maintain a state of immune privilege that can limit high magnitude immune responses. Nevertheless, it is now clear that immune responses are induced to antigens in the brain, including those expressed by cerebral malignancies. We discuss hypotheses of how this can occur, although details such as which antigen presenting cells are involved remain to be clarified. Antitumor responses induced spontaneously are insufficient to eradicate malignant astrocytomas; many studies suggest that this can be explained by a combination of low level immune response induction and tumor mediated immunosuppression. A clinical objective currently pursued is to use immunotherapy to ameliorate antitumour immunity. This will necessitate a high level immune response to ensure sufficient effector cells reach the tumor bed, focused cytotoxicity to eradicate malignant cells with little collateral damage to critical normal cells, and minimal inflammation. To achieve these aims, priority should be given to identifying more target antigens in astrocytoma and defining those cells present in the brain parenchyma that are essential to maintain antitumour effector function without exacerbating inflammation. If we are armed with better understanding of immune interactions with brain tumor cells, we can realistically envisage that immunotherapy will one day offer hope to patients with currently untreatable neoplastic diseases of the CNS.
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Affiliation(s)
- Paul R Walker
- Laboratory of Tumour Immunology, Division of Oncology, Geneva University Hospital, 24 rue Micheli-du-Crest, 1211 Geneva 14, Switzerland.
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