scholarly journals Adoptive cellular therapy in solid tumor malignancies: review of the literature and challenges ahead

2021 ◽  
Vol 9 (7) ◽  
pp. e002723
Author(s):  
Kedar Kirtane ◽  
Hany Elmariah ◽  
Christine H Chung ◽  
Daniel Abate-Daga
Keyword(s):  
T Cells ◽  
T Cell ◽  
Solid Tumor ◽  
Cellular Therapy ◽  
Specific Antigen ◽  
Genetically Engineered ◽  
Standards Of Care ◽  
Adoptive Cellular Therapy ◽  
Car T Cells ◽  
Car T

While immune checkpoint inhibitors (ICIs) have ushered in major changes in standards of care for many solid tumor malignancies, primary and acquired resistance is common. Insufficient antitumor T cells, inadequate function of these cells, and impaired formation of memory T cells all contribute to resistance mechanisms to ICI. Adoptive cellular therapy (ACT) is a form of immunotherapy that is rapidly growing in clinical investigation and has the potential to overcome these limitations by its ability to augment the number, specificity, and reactivity of T cells against tumor tissue. ACT has revolutionized the treatment of hematologic malignancies, though the use of ACT in solid tumor malignancies is still in its early stages. There are currently three major modalities of ACT: tumor-infiltrating lymphocytes (TILs), genetically engineered T-cell receptors (TCRs), and chimeric antigen receptor (CAR) T cells. TIL therapy involves expansion of a heterogeneous population of endogenous T cells found in a harvested tumor, while TCRs and CAR T cells involve expansion of a genetically engineered T-cell directed toward specific antigen targets. In this review, we explore the potential of ACT as a treatment modality against solid tumors, discuss their advantages and limitations against solid tumor malignancies, discuss the promising therapies under active investigation, and examine future directions for this rapidly growing field.

SynNotch CAR circuits enhance solid tumor recognition and promote persistent antitumor activity in mouse models

2021 ◽  
Vol 13 (591) ◽  
pp. eabd8836
Author(s):  
Axel Hyrenius-Wittsten ◽  
Yang Su ◽  
Minhee Park ◽  
Julie M. Garcia ◽  
Josef Alavi ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
T Cells ◽  
T Cell ◽  
Antitumor Activity ◽  
Solid Tumors ◽  
Mouse Models ◽  
Solid Tumor ◽  
Car T Cells ◽  
Therapeutic Benefits ◽  
Car T

The first clinically approved engineered chimeric antigen receptor (CAR) T cell therapies are remarkably effective in a subset of hematological malignancies with few therapeutic options. Although these clinical successes have been exciting, CAR T cells have hit roadblocks in solid tumors that include the lack of highly tumor-specific antigens to target, opening up the possibility of life-threatening “on-target/off-tumor” toxicities, and problems with T cell entry into solid tumor and persistent activity in suppressive tumor microenvironments. Here, we improve the specificity and persistent antitumor activity of therapeutic T cells with synthetic Notch (synNotch) CAR circuits. We identify alkaline phosphatase placental-like 2 (ALPPL2) as a tumor-specific antigen expressed in a spectrum of solid tumors, including mesothelioma and ovarian cancer. ALPPL2 can act as a sole target for CAR therapy or be combined with tumor-associated antigens such as melanoma cell adhesion molecule (MCAM), mesothelin, or human epidermal growth factor receptor 2 (HER2) in synNotch CAR combinatorial antigen circuits. SynNotch CAR T cells display superior control of tumor burden when compared to T cells constitutively expressing a CAR targeting the same antigens in mouse models of human mesothelioma and ovarian cancer. This was achieved by preventing CAR-mediated tonic signaling through synNotch-controlled expression, allowing T cells to maintain a long-lived memory and non-exhausted phenotype. Collectively, we establish ALPPL2 as a clinically viable cell therapy target for multiple solid tumors and demonstrate the multifaceted therapeutic benefits of synNotch CAR T cells.

scholarly journals A Preclinical Embryonic Zebrafish Xenograft Model to Investigate CAR T Cells in Vivo

Cancers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 567 ◽  
Author(s):  
Susana Pascoal ◽  
Benjamin Salzer ◽  
Eva Scheuringer ◽  
Andrea Wenninger-Weinzierl ◽  
Caterina Sturtzel ◽  
...  
Keyword(s):  
T Cells ◽  
T Cell ◽  
Cellular Therapy ◽  
Xenograft Model ◽  
Model Systems ◽  
Preclinical Model ◽  
Car T Cells ◽  
Car T Cell ◽  
Car T

Chimeric antigen receptor (CAR) T cells have proven to be a powerful cellular therapy for B cell malignancies. Massive efforts are now being undertaken to reproduce the high efficacy of CAR T cells in the treatment of other malignancies. Here, predictive preclinical model systems are important, and the current gold standard for preclinical evaluation of CAR T cells are mouse xenografts. However, mouse xenograft assays are expensive and slow. Therefore, an additional vertebrate in vivo assay would be beneficial to bridge the gap from in vitro to mouse xenografts. Here, we present a novel assay based on embryonic zebrafish xenografts to investigate CAR T cell-mediated killing of human cancer cells. Using a CD19-specific CAR and Nalm-6 leukemia cells, we show that live observation of killing of Nalm-6 cells by CAR T cells is possible in zebrafish embryos. Furthermore, we applied Fiji macros enabling automated quantification of Nalm-6 cells and CAR T cells over time. In conclusion, we provide a proof-of-principle study that embryonic zebrafish xenografts can be used to investigate CAR T cell-mediated killing of tumor cells. This assay is cost-effective, fast, and offers live imaging possibilities to directly investigate CAR T cell migration, engagement, and killing of effector cells.

scholarly journals Strengthening the CAR-T Cell Therapeutic Application using CRISPR/Cas9 Technology

2021 ◽  
Author(s):  
Muhammad Sadeqi Nezhad ◽  
Mahboubeh Yazdanifar ◽  
Meghdad Abdollahpour-Alitappeh ◽  
Arash Sattari ◽  
Alexander seifalian ◽  
...  
Keyword(s):  
T Cells ◽  
T Cell ◽  
Side Effects ◽  
Hematologic Malignancies ◽  
Genetically Engineered ◽  
T Cell Therapy ◽  
Car T Cells ◽  
Car T Cell ◽  
Promising Tool ◽  
Car T

Adoptive cell immunotherapy with chimeric antigen receptor (CAR) T cell has brought a revolutionary means of treatment for aggressive diseases such as hematologic malignancies and solid tumors. Over the last decade, FDA approved three types of CAR-T cells against CD19 hematologic malignancies, including Tisagenlecleucel (Kymriah), Axicabtagene ciloleucel (Yescarta), and Brexucabtagene autoleucel (Tecartus). Despite outstanding results gained from different clinical trials, CAR-T cell therapy is not free from side effects and toxicities, and needs careful investigations and improvements. Gene-editing technology, clustered regularly interspaced short palindromic repeats (CRISPR)/ CRISPR-associated protein 9 (Cas9) system has emerged as a promising tool to address some of the CAR-T therapy hurdles. Using CRISPR/Cas9 technology, CAR expression as well as other cellular pathways can be modified in various ways to enhance CAR-T cell’s anti-tumor function and persistence in immunosuppressive tumor microenvironment. CRISPR/Cas9 technology can also be utilized to reduce CAR-T cells toxicity and side effects. Hereby, we discuss the practical challenges and hurdles related to the accuracy, efficiency, efficacy, safety and delivery of CRISPR/Cas9 technology to the genetically engineered-T cells. Combining of these two state-of-the-art technologies, CRISPR/Cas9 and CAR-T cells, the field of oncology has an extraordinary opportunity to enter a new era of immunotherapy, which offers novel therapeutic options for different types of tumors.

scholarly journals BOXR1030, an anti-GPC3 CAR with exogenous GOT2 expression, shows enhanced T cell metabolism and improved antitumor activity

2021 ◽  
Author(s):  
Taylor L Hickman ◽  
Eugene Choi ◽  
Kathleen R Whiteman ◽  
Sujatha Muralidharan ◽  
Tapasya Pai ◽  
...  
Keyword(s):  
T Cells ◽  
T Cell ◽  
Antitumor Activity ◽  
Solid Tumor ◽  
Cell Function ◽  
Cell Metabolism ◽  
Car T Cells ◽  
Car T

Purpose: The solid tumor microenvironment (TME) drives T cell dysfunction and inhibits the effectiveness of immunotherapies such as chimeric antigen receptor-based T cell (CAR T) cells. Early data has shown that modulation of T cell metabolism can improve intratumoral T cell function in preclinical models. Experimental Design: We evaluated GPC3 expression in human normal and tumor tissue specimens. We developed and evaluated BOXR1030, a novel CAR T therapeutic co-expressing glypican-3 (GPC3)-targeted CAR and exogenous glutamic-oxaloacetic transaminase 2 (GOT2) in terms of CAR T cell function both in vitro and in vivo. Results: Expression of tumor antigen GPC3 was observed by immunohistochemical staining in tumor biopsies from hepatocellular carcinoma, liposarcoma, squamous lung cancer, and Merkel cell carcinoma patients. Compared to control GPC3 CAR alone, BOXR1030 (GPC3-targeted CAR T cell that co-expressed GOT2) demonstrated superior in vivo efficacy in aggressive solid tumor xenograft models, and showed favorable attributes in vitro including an enhanced cytokine production profile, a less-differentiated T cell phenotype with lower expression of stress and exhaustion markers, an enhanced metabolic profile and increased proliferation in TME-like conditions. Conclusions: Together, these results demonstrated that co-expression of GOT2 can substantially improve the overall antitumor activity of CAR T cells by inducing broad changes in cellular function and phenotype. These data show that BOXR1030 is an attractive approach to targeting select solid tumors. To this end, BOXR1030 will be explored in the clinic to assess safety, dose-finding, and preliminary efficacy (NCT05120271).

scholarly journals The tumor vasculature an attractive CAR T cell target in solid tumors

Angiogenesis ◽  
2019 ◽  
Vol 22 (4) ◽  
pp. 473-475 ◽  
Author(s):  
Parvin Akbari ◽  
Elisabeth J. M. Huijbers ◽  
Maria Themeli ◽  
Arjan W. Griffioen ◽  
Judy R. van Beijnum
Keyword(s):  
T Cells ◽  
T Cell ◽  
Tumor Microenvironment ◽  
Solid Tumors ◽  
Solid Tumor ◽  
Hematological Malignancies ◽  
Tumor Vasculature ◽  
Car T Cells ◽  
Car T Cell ◽  
Car T

Abstract T cells armed with a chimeric antigen receptor, CAR T cells, have shown extraordinary activity against certain B lymphocyte malignancies, when targeted towards the CD19 B cell surface marker. These results have led to the regulatory approval of two CAR T cell approaches. Translation of this result to the solid tumor setting has been problematic until now. A number of differences between liquid and solid tumors are likely to cause this discrepancy. The main ones of these are undoubtedly the uncomplicated availability of the target cell within the blood compartment and the abundant expression of the target molecule on the cancerous cells in the case of hematological malignancies. Targets expressed by solid tumor cells are hard to engage due to the non-adhesive and abnormal vasculature, while conditions in the tumor microenvironment can be extremely immunosuppressive. Targets in the tumor vasculature are readily reachable by CAR T cells and reside outside the immunosuppressive tumor microenvironment. It is therefore hypothesized that targeting CAR T cells towards the tumor vasculature of solid tumors may share the excellent effects of CAR T cell therapy with that against hematological malignancies. A few reports have shown promising results. Suggestions are provided for further improvement.

scholarly journals Chimeric antigen receptor T cell therapy comes to clinical practice

2019 ◽  
Vol 27 (S2) ◽  
Author(s):  
D. Wall ◽  
J. Krueger
Keyword(s):  
T Cells ◽  
T Cell ◽  
Chimeric Antigen Receptor ◽  
Cellular Therapy ◽  
Lymphoblastic Leukemia ◽  
Antigen Receptor ◽  
Adoptive Cellular Therapy ◽  
T Cell Therapy ◽  
Non Hodgkin Lymphoma ◽  
Car T

Adoptive cellular therapy with chimeric antigen receptor T cells (car-ts) has recently received approval from Health Canada and the U.S. Food and Drug Administration after remarkable and durable remissions were seen in children with recurrent or refractory leukemia and adults with non-Hodgkin lymphoma—responses that were so impressive that a shift in the paradigm of care has now occurred for children with acute lymphoblastic leukemia.    The concept behind car-t immunotherapy is that modification of a patient’s own T cells to facilitate their localization to the cancer cell, with subsequent activation of the T cell effector mechanism and proliferation, will result in targeted killing of cancer cells. The car-ts are a novel drug in that the starting material for the manufacture of the car-t product comes from the patient, whose viable T cells are then genetically modified. Thus, collaboration is needed between the pharmaceutical companies, which must meet good manufacturing standards for each patient’s unique product, and the treating sites. For regulators and health authorities, this new class of drugs requires new paradigms for assessment and approval. Treatments with car-ts require that institutions address unique logistics requirements and management of novel toxicities.    The Hospital for Sick Children has had early experience with both the licensing of clinical trials and the introduction of the first commercial product. Here, we provide an overview of basic concepts and treatment, with caveats drawn from what we have learned thus far in bringing this new therapy to the clinical front line.

scholarly journals Nanobody-based chimeric antigen receptor T cells designed by CRISPR/Cas9 technology for solid tumor immunotherapy

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Fengzhen Mo ◽  
Siliang Duan ◽  
Xiaobing Jiang ◽  
Xiaomei Yang ◽  
Xiaoqiong Hou ◽  
...  
Keyword(s):  
T Cells ◽  
T Cell ◽  
Chimeric Antigen Receptor ◽  
Solid Tumor ◽  
Antigen Receptor ◽  
Cytotoxic T Cell ◽  
Target Cells ◽  
Human Tumor Xenograft ◽  
Car T Cells ◽  
Car T

AbstractChimeric antigen receptor-based T-cell immunotherapy is a promising strategy for treatment of hematological malignant tumors; however, its efficacy towards solid cancer remains challenging. We therefore focused on developing nanobody-based CAR-T cells that treat the solid tumor. CD105 expression is upregulated on neoangiogenic endothelial and cancer cells. CD105 has been developed as a drug target. Here we show the generation of a CD105-specific nanobody, an anti-human CD105 CAR-T cells, by inserting the sequences for anti-CD105 nanobody-linked standard cassette genes into AAVS1 site using CRISPR/Cas9 technology. Co-culture with CD105+ target cells led to the activation of anti-CD105 CAR-T cells that displayed the typically activated cytotoxic T-cell characters, ability to proliferate, the production of pro-inflammatory cytokines, and the specific killing efficacy against CD105+ target cells in vitro. The in vivo treatment with anti-CD105 CAR-T cells significantly inhibited the growth of implanted CD105+ tumors, reduced tumor weight, and prolonged the survival time of tumor-bearing NOD/SCID mice. Nanobody-based CAR-T cells can therefore function as an antitumor agent in human tumor xenograft models. Our findings determined that the strategy of nanobody-based CAR-T cells engineered by CRISPR/Cas9 system has a certain potential to treat solid tumor through targeting CD105 antigen.

scholarly journals 111 Armored CAR T cells secreting 4–1BB ligand crosslinked to PD-1 checkpoint inhibitor for enhanced solid tumor efficacy

2021 ◽  
Vol 9 (Suppl 3) ◽  
pp. A121-A121
Author(s):  
Zachary Dunn ◽  
Yun Qu ◽  
Melanie MacMullan ◽  
Xianhui Chen ◽  
Gunce Cinay ◽  
...  
Keyword(s):  
T Cells ◽  
T Cell ◽  
Fusion Protein ◽  
Solid Tumor ◽  
Single Chain ◽  
T Cell Therapy ◽  
Car T Cells ◽  
Car T Cell ◽  
Car T

BackgroundChimeric antigen receptor (CAR) T cell therapy has transformed the treatment of hematological malignancies but has yet to achieve similar success in solid tumors due to a lack of persistence and function in the tumor microenvironment. We previously reported the augmentation CAR T cell therapy in an engineered solid tumor model through the secretion of anti-PD-1 scFv, as shown by enhanced CAR T cell antitumor efficacy, expansion, and vitality.1 We have since matured the platform to create a superior cellular product – CAR T cells secreting single-chain trimeric 4-1BB ligand crosslinked to anti-PD-1 scFv (αPD1-41BBL). 4-1BB signaling promotes cytotoxic T lymphocytes proliferation and survival but targeting 4-1BB with agonist antibodies in the clinic has been hindered by low antitumor activity and high toxicity. CAR T cells using 4-1BB endodomain for costimulatory signals have demonstrated milder anti-tumor response and longer persistence compared to CAR T cells costimulated by CD28 endodomain. We have, for the first time, engineered CAR T cells to secrete a fusion protein containing the soluble trimeric 4-1BB ligand.MethodsWe hypothesized that crosslinking the current anti-PD-1 scFv with 4-1BB ligand would provide additional benefits to CAR T cells and is potentially of translational value in the management of tumors resistant to PD-1 blockade due to lack of T cell function. Therefore, we engineered CAR T cells to secrete a novel immunomodulatory fusion protein consisting of anti-PD-1 scFv crosslinked to a single-chain format of trimeric 4-1BB ligand, in which three extracellular domain units of 41BBL are connected with polypeptide linkers. The CAR T cells were then characterized in vitro and subcutaneous tumor models.ResultsIn vitro and in vivo, CAR19.αPD1-41BBL T cells exhibited reduced inhibitory receptor upregulation, enhanced persistence and proliferation, and a less differentiated memory status compared to CAR T cells without additional 4-1BB:4-1BBL costimulation. Accordingly, CAR19.αPD1-41BBL T cell-treated mice displayed significantly improved tumor growth control and overall survival. Spurred on by our preclinical success targeting CD19 as a model antigen, we produced mesothelin-targeting CAR T cells and confirmed the enhanced solid tumor efficacy and persistence of αPD1-41BBL secreting CAR T cells.ConclusionsGiven the significantly better therapeutic efficacy of αPD1-41BBL expressing T cells over αPD1 expressing T cells, we believe that it is of high translational value to adopt secretion of αPD1-41BBL fusion protein to improve CAR T cell solid tumor efficacy, especially given the large number of patients that are PD1/PD-L1 therapy resistant.ReferencesLi S, Siriwon N, Zhang X, Yang S, Jin T, He F, et al. Enhanced cancer immunotherapy by chimeric antigen receptor–modified T cells engineered to secrete checkpoint inhibitors. Clin Cancer Res 2017;23(22):6982–92.

scholarly journals Efficacy, Toxicity and Targets for Adoptive Cellular Therapy in Multiple Myeloma: A Systematic Review

Blood ◽  
2018 ◽  
Vol 132 (Supplement 1) ◽  
pp. 5649-5649
Author(s):  
Muhammad Usman ◽  
Muhammad Junaid Tariq ◽  
Awais Ijaz ◽  
Muhammad Asad Fraz ◽  
Ali Younas Khan ◽  
...  
Keyword(s):  
T Cells ◽  
Phase I ◽  
Natural Killer ◽  
Cellular Therapy ◽  
Objective Response ◽  
Complete Response ◽  
Adoptive Cellular Therapy ◽  
Car T Cells ◽  
Car T ◽  
Grade 3

Abstract Introduction Advancement in multiple myeloma (MM) has led to the development of adoptive cell transfer (ACT), an immunotherapeutic modality that utilizes body's own effector cells (T cells or Natural killer cells) to kill cancer cells. These include chimeric antigen receptor T cells (CAR-T cells), genetically modified T cell receptors (TCRs), activated Natural Killer (NK) cells and native T cells armed with bispecific antibodies. Potential antigen targets for TCRs in MM include B cell maturation antigen (BCMA), CD19, CD138, NKG2D, Ig kappa, LeY and SLMF7/CS-1, MAGE A3 and NY-ESO-1. The purpose of this review is to summarize various types of cellular therapies which are being tested in early phase clinical trials for treatment of MM. Methods We performed a comprehensive literature search (PubMed, EMBASE, AdisInsight and Clinicaltrials.gov) between January 2008 to December 2017, to identify early phase (I and I/II) trials of cellular therapy for the treatment of MM. We included studies involving cellular therapy, irrespective of the geo-location, age, sex or specific eligibility criteria. Results With initial search yielded 2537 phase I and phase I/II studies. After initial screening by two reviewers and categorization by mechanism of action, 37 clinical trials (CTs) that involved ACT were included. Out of the 37 trials, 18 are active or completed (Table 1) and 19 are recruiting subjects (Table 2). Most explored mechanism of action (21 CTs) in these trials is CAR T-cell therapy directed against B cell maturation antigen (BCMA). Anti-BCMA CART has shown promising efficacy of up to 100% objective response (OR) in a phase I trial (NCT03090659, n=22). In a phase I/II trial by Fan et al. (n=19), 6 (32%) patients showed complete response (CR), 12 (63%) developed near complete response (nCR), 1 (5%) achieved partial response (PR). In phase I trial by Ali et al. (2016, n=12), anti-BCMA CART cells led to stringent complete response (sCR) in 1 (8%) patient, very good partial response (VGPR) in 2 (16%), PR in 1 (8%) and stable disease (SD) in 8 (66%). Grade 3-4 cytokine release syndrome (CRS) was reported in 3 (25%) patients receiving high dose of CAR T cells (9 x 106 / kg in 2 patients and 3 x 106 /kg in 1 patient). Cohen et al., 2017 (n= 24) reported the objective response rate (ORR) defined as ≥PR in 11 (47%) patients. In 75% of patients with grade 3-4 CRS, tocilizumab/siltuximab was used to manage CRS. According to Garfall et al. (2018, n=10), administration of anti-CD19 CART after autologus stem cell transplant (auto-SCT) improved progression free survival (PFS) in 2 (20%) patients compared to PFS due to auto-SCT done earlier in same patients (from 181 to 479 days and 127 to 249 days). Leivas et al. (2016, n=5) showed that infusion of expanded and activated natural killer cells (NKAE) with lenalidomide have shown better response (PR=1, SD=1, SD to PD=1) than NKAE with bortezomib (SD=1, PD=1). In 10 (83%) patients, VGPR or better response was achieved after infusion of allogenic cord blood derived NK cells along with auto-SCT (Shah et al., 2017). Rapoport et al. (2017, n=25) infused CAR T-cells against cancer testes antigens (NY-ESO-1, LAGE-1a) and demonstrated the OR in 19 (76%) patients (1 sCR, 12 VGPR, 6PR) at day 100. Al-Kadhimi et al. (2011, n=9) administered activated autologous T cells armed with bispecific antibodies against CD3 and CD20 (aATC) prior to auto-SCT. Two patients achieved VGPR, two patients achieved CR while five patients developed PR. Fowler et al. (2016, n=20) used type 1 polarized, rapamycin resistant T (T1-Rapa) cells after auto-SCT in high risk myeloma patients. Out of 19 evaluable patients, 5 had ongoing CR (at 733, 787, 847, 926, 1186 days) while 14 patients had disease progression (from 64 to 917 days). No adverse effects or dose limiting toxicity was observed in any of the patients. Conclusion Adoptive cellular therapy has shown excellent clinical activity against myeloma cells in relapsed refractory patients. The adverse events like CRS and infusion reactions are concerning but manageable. The results of trials involving T cells targeting BCMA are very encouraging. Disclosures No relevant conflicts of interest to declare.

scholarly journals POTENSI SEL T MOBIL HER2 SPESIFIK MODIFIKASI CRISPR / CAS9 PD-1 / PD-L1 PEMBLOKIRAN SEBAGAI INOVASI TERAPI UVEAL MELANOMA

2019 ◽  
Vol 2 (1) ◽  
pp. 01-11
Author(s):  
Muhammad AH Khoiruddin ◽  
Yusi Windya Febriyanti ◽  
Nafia Amalia
Keyword(s):  
T Cells ◽  
T Cell ◽  
Uveal Melanoma ◽  
Specific Antigen ◽  
Thermal Therapy ◽  
Car T Cells ◽  
Car T Cell ◽  
Cell Immunotherapy ◽  
Car T ◽  
T Cell Immunotherapy

Uveal Melanoma (UM) is the primary intraocular tumor most commonly found in adults. The combination of therapy, Brachytherapy, surgery, Tranpupillary Thermal Therapy (TTT), Proton Beam Theraphy has not produced satisfactory results. The discovery of HER2 receptors expressed by UM cells can be used as a specific antigen target for the treatment of CAR T-celss. However, the effectiveness of CAR T-cell immunotherapy in tumors results in immunosuppressive T cells caused by an increase in Programmed cell Death Ligand-1 (PD-L1). This literature review demonstrates the success of HER2-specific CART T Cells as UM therapeutic efforts capable of eliminating tumor cells. In addition, CRSPR / Cas9 PD-1 / PD-L1-blocking modified HER2-specific CAR T cells can be a gene innovation in UM sufferers. Further clinical trials are needed to prove the effectiveness of CRISPR / Cas9 PD-1 / PD-L1-Blocking modified HER2-specific CAR T Cells in the treatment of UM patients.Keywords: Uveal melanoma, CAR T cell, reseptor HER

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