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Liang C, Huang W, Zhang Y, Zhang D, An S, Wu Q, Zhao H, Wang C, Huang G, Wei W, Liu J. ImmunoPET Imaging of CD47 with VHH-Derived Tracers in Pancreatic Cancers. Mol Pharm 2023; 20:4184-4195. [PMID: 37403817 DOI: 10.1021/acs.molpharmaceut.3c00311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a malignant tumor with insidious onset, rapid progression, and a very poor prognosis. CD47 is a transmembrane protein associated with the development and poor prognosis of pancreatic cancer. The aim of this study was to evaluate the diagnostic value of novel immunoPET tracers targeting CD47 in preclinical pancreatic cancer models. The association of CD47 expression with pancreatic cancer was analyzed using the Gene Expression Profiling Interactive Analysis platform. Immunohistochemical analysis of tissue microarrays was performed to detect CD47 expression in PDAC. CD47 expression levels on BxPC-3 and AsPC-1 cell membranes were compared using flow cytometry. A VHH (C2)-targeting human CD47 and its albumin-binding derivative (ABDC2) were labeled with 68Ga or 89Zr, respectively. The developed tracers were evaluated by immuno-positron emission tomography (immunoPET) imaging in tumor-bearing nude and CD47-humanized mice. [68Ga]Ga-NOTA-C2 effectively detected tumor lesions in nude mice models and further showed confirmative imaging capacity in CD47-humanized PDAC models. Compared with [68Ga]Ga-NOTA-C2, [89Zr]Zr-DFO-ABDC2 had a significantly prolonged circulation time, increased tumor uptake, and reduced accumulation in the kidneys. Finally, biodistribution and histological staining confirmed the results of the immunoPET imaging studies. In this study, we validated that two novel VHH-derived molecular imaging tracers for immunoPET imaging ([68Ga]Ga-NOTA-C2 and [89Zr]Zr-DFO-ABDC2) can effectively annotate CD47 expression and diagnose PDAC in a target-specific manner. Clinical application of the imaging strategies may help select patients for CD47-targeted therapies and assess the response thereafter.
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Affiliation(s)
- Chenyi Liang
- Department of Nuclear Medicine, Institute of Clinical Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Wei Huang
- Department of Nuclear Medicine, Institute of Clinical Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - You Zhang
- Department of Nuclear Medicine, Institute of Clinical Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Di Zhang
- Department of Nuclear Medicine, Institute of Clinical Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Shuxian An
- Department of Nuclear Medicine, Institute of Clinical Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Qianyun Wu
- Department of Nuclear Medicine, Institute of Clinical Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Haitao Zhao
- Department of Nuclear Medicine, Institute of Clinical Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Cheng Wang
- Department of Nuclear Medicine, Institute of Clinical Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Gang Huang
- Department of Nuclear Medicine, Institute of Clinical Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Weijun Wei
- Department of Nuclear Medicine, Institute of Clinical Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Jianjun Liu
- Department of Nuclear Medicine, Institute of Clinical Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
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Periplocin Induces Apoptosis of Pancreatic Cancer Cells through Autophagy via the AMPK/mTOR Pathway. JOURNAL OF ONCOLOGY 2022; 2022:8055004. [PMID: 35847371 PMCID: PMC9277210 DOI: 10.1155/2022/8055004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 05/24/2022] [Accepted: 06/04/2022] [Indexed: 11/30/2022]
Abstract
Periplocin, a natural compound, has been shown to induce apoptosis in a variety of cancer cells. However, no research has been conducted to demonstrate that Periplocin has a regulatory effect on autophagy. This study is aimed to determine the effect of Periplocin treatment on autophagy in human pancreatic cancer cells, as well as the underlying mechanisms. Pancreatic cancer cells were treated with different concentrations of Periplocin, and real-time cell analysis (RTCA), colony formation assay, and Ki67 immunofluorescence detection were used to determine cell proliferation. Autophagy protein was detected by immunofluorescence and western blotting. Western blotting was also used to detect the caspase family of apoptotic proteins. Flow cytometry and TUNEL staining were used to detect cell apoptosis. Following treatment with Periplocin, the expression of autophagy genes was detected using RNA-seq. In vivo examination of the effect of Periplocin on autophagy in pancreatic was performed using a xenograft model. Periplocin inhibits the proliferation of CFPAC1 and PANC1 cells and induces autophagy by regulating the AMPK/mTOR pathway. Using the AMPK inhibitor Compound C(CC), both the Periplocin-induced inhibition of cell proliferation and autophagy activation was reduced, which further verified this conclusion. Periplocin inhibits CFPAC1 xenograft tumor growth in nude mice and increases tumor cell autophagy. Collectively, these results have shown that Periplocin promotes autophagy in human pancreatic cancer cells by regulating the AMPK/mTOR pathway.
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Opportunities and challenges in targeted therapy and immunotherapy for pancreatic cancer. Expert Rev Mol Med 2021; 23:e21. [PMID: 34906271 DOI: 10.1017/erm.2021.26] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Pancreatic cancer is one of the most malignant tumours with a poor prognosis. In recent years, the incidence of pancreatic cancer is on the rise. Traditional chemotherapy and radiotherapy for pancreatic cancer have been improved, first-line and second-line palliative treatments have been developed, and adjuvant treatments have also been used in clinical. However, the 5-year survival rate is still less than 10% and new treatment methods such as targeted therapy and immunotherapy need to be investigated. In the past decades, many clinical trials of targeted therapies and immunotherapies for pancreatic cancer were launched and some of them showed an ideal prospect in a subgroup of pancreatic cancer patients. The experience of both success and failure of these clinical trials will be helpful to improve these therapies in the future. Therefore, the current research progress and challenges of selected targeted therapies and immunotherapies for pancreatic cancer are reviewed.
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Dréau D, Moore LJ, Wu M, Roy LD, Dillion L, Porter T, Puri R, Momin N, Wittrup KD, Mukherjee P. Combining the Specific Anti-MUC1 Antibody TAB004 and Lip-MSA-IL-2 Limits Pancreatic Cancer Progression in Immune Competent Murine Models of Pancreatic Ductal Adenocarcinoma. Front Oncol 2019; 9:330. [PMID: 31114758 PMCID: PMC6503151 DOI: 10.3389/fonc.2019.00330] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 04/11/2019] [Indexed: 12/19/2022] Open
Abstract
Immunotherapy regimens have shown success in subsets of cancer patients; however, their efficacy against pancreatic ductal adenocarcinoma (PDA) remain unclear. Previously, we demonstrated the potential of TAB004, a monoclonal antibody targeting the unique tumor-associated form of MUC1 (tMUC1) in the early detection of PDA. In this study, we evaluated the therapeutic benefit of combining the TAB004 antibody with Liposomal-MSA-IL-2 in immune competent and human MUC1 transgenic (MUC1.Tg) mouse models of PDA and investigated the associated immune responses. Treatment with TAB004 + Lip-MSA-IL-2 resulted in significantly improved survival and slower tumor growth compared to controls in MUC1.Tg mice bearing an orthotopic PDA.MUC1 tumor. Similarly, in the spontaneous model of PDA that expresses human MUC1, the combination treatment stalled the progression of pancreatic intraepithelial pre-neoplastic (PanIN) lesion to adenocarcinoma. Treatment with the combination elicited a robust systemic and tumor-specific immune response with (a) increased percentages of systemic and tumor infiltrated CD45+CD11b+ cells, (b) increased levels of myeloperoxidase (MPO), (c) increased antibody-dependent cellular cytotoxicity/phagocytosis (ADCC/ADCP), (d) decreased percentage of immune regulatory cells (CD8+CD69+ cells), and (e) reduced circulating levels of immunosuppressive tMUC1. We report that treatment with a novel antibody against tMUC1 in combination with a unique formulation of IL-2 can improve survival and lead to stable disease in appropriate models of PDA by reducing tumor-induced immune regulation and promoting recruitment of CD45+CD11b+ cells, thereby enhancing ADCC/ADCP.
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Affiliation(s)
- Didier Dréau
- Department of Biological Sciences, UNC Charlotte, Charlotte, NC, United States
| | | | - Mike Wu
- OncoTab Inc., Charlotte, NC, United States
| | | | | | - Travis Porter
- Department of Biological Sciences, UNC Charlotte, Charlotte, NC, United States
| | - Rahul Puri
- OncoTab Inc., Charlotte, NC, United States
| | - Noor Momin
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, United States
| | - K Dane Wittrup
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, United States
| | - Pinku Mukherjee
- Department of Biological Sciences, UNC Charlotte, Charlotte, NC, United States.,OncoTab Inc., Charlotte, NC, United States
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He J, Zhang Z, Lv S, Liu X, Cui L, Jiang D, Zhang Q, Li L, Qin W, Jin H, Qian Q. Engineered CAR T cells targeting mesothelin by piggyBac transposon system for the treatment of pancreatic cancer. Cell Immunol 2018; 329:31-40. [PMID: 29859625 DOI: 10.1016/j.cellimm.2018.04.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 04/11/2018] [Accepted: 04/15/2018] [Indexed: 12/22/2022]
Abstract
Patients with pancreatic cancer have a poor prognosis largely due to the poor efficacy of the available treatment modalities. In this study, we engineered mesothelin-targeting chimeric antigen receptor T cells (mesoCAR T) using the piggyBac transposon based plasmid electroporation technique for specific targeting of pancreatic cancer cells expressing mesothelin. In vitro, mesoCAR T cells exhibited rapid and robust killing effect against ASPC1 cells with high expression levels of mesothelin with high production of IFN-γ; the cytotoxic effect on PANC1 cells with low expressions of mesothelin was relatively attenuated. In the ASPC1 xenograft mice model, mesoCAR T cells significantly suppressed the tumor growth accompanied with higher-level IFN-γ secretion as compared to control T cells. Besides, more mesoCAR T cells differentiated into memory T cells after tumor remission, whilst causing minimal lesions in major organs. Our study suggests promising efficacy of piggyBac transposon-based mesoCAR T cell therapy for pancreatic cancer, which is a potential candidate for clinical translation.
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Affiliation(s)
- Jiangchuan He
- Xinyuan Institute of Medicine and Biotechnology, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Zhiwei Zhang
- Shanghai Cell Therapy Research Institute, Shanghai Engineering Research Center for Cell Therapy, Shanghai 201805, China; Department of Biotherapy, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University of Chinese PLA, Shanghai 201805, China
| | - Saiqun Lv
- Shanghai Cell Therapy Research Institute, Shanghai Engineering Research Center for Cell Therapy, Shanghai 201805, China
| | - Xiangzhen Liu
- Shanghai Cell Therapy Research Institute, Shanghai Engineering Research Center for Cell Therapy, Shanghai 201805, China
| | - Lianzhen Cui
- Shanghai Cell Therapy Research Institute, Shanghai Engineering Research Center for Cell Therapy, Shanghai 201805, China
| | - Duqing Jiang
- Shanghai Cell Therapy Research Institute, Shanghai Engineering Research Center for Cell Therapy, Shanghai 201805, China
| | - Qi Zhang
- Shanghai Cell Therapy Research Institute, Shanghai Engineering Research Center for Cell Therapy, Shanghai 201805, China
| | - Linfang Li
- Shanghai Cell Therapy Research Institute, Shanghai Engineering Research Center for Cell Therapy, Shanghai 201805, China
| | - Wenxia Qin
- Shanghai Cell Therapy Research Institute, Shanghai Engineering Research Center for Cell Therapy, Shanghai 201805, China
| | - Huajun Jin
- Shanghai Cell Therapy Research Institute, Shanghai Engineering Research Center for Cell Therapy, Shanghai 201805, China; Department of Biotherapy, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University of Chinese PLA, Shanghai 201805, China.
| | - Qijun Qian
- Xinyuan Institute of Medicine and Biotechnology, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, China; Shanghai Cell Therapy Research Institute, Shanghai Engineering Research Center for Cell Therapy, Shanghai 201805, China; Department of Biotherapy, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University of Chinese PLA, Shanghai 201805, China.
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