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Cheng Z, Wang Y, Zhang Y, Zhang C, Wang M, Wang W, He J, Wang Y, Zhang H, Zhang Q, Ding C, Wu D, Yang L, Liu M, Lu W. Discovery of 2 H-Indazole-3-carboxamide Derivatives as Novel Potent Prostanoid EP4 Receptor Antagonists for Colorectal Cancer Immunotherapy. J Med Chem 2023; 66:6218-6238. [PMID: 36880691 DOI: 10.1021/acs.jmedchem.2c02058] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
Nowadays, small-molecule drugs have become an indispensable part of tumor immunotherapy. Accumulating evidence has indicated that specifically blocking PGE2/EP4 signaling to induce robust antitumor immune response represents an attractive immunotherapy strategy. Herein, a 2H-indazole-3-carboxamide containing compound 1 was identified as a EP4 antagonist hit by screening our in-house small-molecule library. Systematic structure-activity relationship exploration leads to the discovery of compound 14, which displayed single-nanomolar EP4 antagonistic activity in a panel of cell functional assays, high subtype selectivity, and favorable drug-like profiles. Moreover, compound 14 profoundly inhibited the up-regulation of multiple immunosuppression-related genes in macrophages. Oral administration of compound 14, either as monotherapy or in combination with an anti-PD-1 antibody, significantly impaired tumor growth via enhancing cytotoxic CD8+ T cell-mediated antitumor immunity in a syngeneic colon cancer model. Thus, these results demonstrate the potential of compound 14 as a candidate for developing novel EP4 antagonists for tumor immunotherapy.
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Affiliation(s)
- Zhiyuan Cheng
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yijie Wang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yao Zhang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Chan Zhang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Mengru Wang
- Department of Pharmacology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Wei Wang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Jiacheng He
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yang Wang
- Department of Urology, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200240, China
| | - Hankun Zhang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Qiansen Zhang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Chunyong Ding
- Targeted Drug Research Center of Digestive Tract Tumor, Pharm-X Center, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Deyan Wu
- School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China.,School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Linlin Yang
- Department of Pharmacology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Mingyao Liu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Weiqiang Lu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
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2
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Hu X, Zhu H, He X, Chen J, Xiong L, Shen Y, Li J, Xu Y, Chen W, Liu X, Cao D, Xu X. The application of nanoparticles in immunotherapy for hepatocellular carcinoma. J Control Release 2023; 355:85-108. [PMID: 36708880 DOI: 10.1016/j.jconrel.2023.01.051] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 01/17/2023] [Accepted: 01/18/2023] [Indexed: 01/30/2023]
Abstract
Hepatocellular carcinoma (HCC) remains one of the leading causes of cancer-related deaths worldwide, however, current clinical diagnostic and treatment approaches remain relatively limited, creating an urgent need for the development of effective technologies. Immunotherapy has emerged as a powerful treatment strategy for advanced cancer. The number of clinically approved drugs for HCC immunotherapy has been increasing. However, it remains challenging to improve their transport and therapeutic efficiency, control their targeting and release, and mitigate their adverse effects. Nanotechnology has recently gained attention for improving the effectiveness of precision therapy for HCC. We summarize the key features of HCC associated with nanoparticle (NPs) targeting, release, and uptake, the roles and limitations of several major immunotherapies in HCC, the use of NPs in immunotherapy, the properties of NPs that influence their design and application, and current clinical trials of NPs in HCC, with the aim of informing the design of delivery platforms that have the potential to improve the safety and efficacy of HCC immunotherapy,and thus, ultimately improve the prognosis of HCC patients.
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Affiliation(s)
- Xinyao Hu
- Cancer center, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Hua Zhu
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Xiaoqin He
- Cancer center, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Jiayu Chen
- Cancer center, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Lin Xiong
- Cancer center, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Yang Shen
- Cancer center, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Jiayi Li
- Cancer center, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Yangtao Xu
- Cancer center, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Wenliang Chen
- Cancer center, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Xin Liu
- Cancer center, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Dedong Cao
- Cancer center, Renmin Hospital of Wuhan University, Wuhan 430060, China.
| | - Ximing Xu
- Cancer center, Renmin Hospital of Wuhan University, Wuhan 430060, China.
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Comparison of 22C3-PD-L1 Expression Between Paired Tumor Paraffin Blocks of Surgical Resection Specimens of Nonsmall Cell Lung Cancer. Appl Immunohistochem Mol Morphol 2023; 31:33-39. [PMID: 36367192 DOI: 10.1097/pai.0000000000001085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 10/19/2022] [Indexed: 11/13/2022]
Abstract
In this study, our aim was to evaluate the discordance of programmed cell death ligand 1 (PD-L1) expression between 2 paired paraffin blocks from surgical nonsmall cell lung cancer (NSCLC) specimens, thus providing recommendations for choosing paraffin blocks for PD-L1 immunohistochemistry detection. A total of 460 paired paraffin blocks of surgical NSCLC specimens were analyzed using the 22C3-PD-L1 assay. PD-L1 expression between 2 paired paraffin blocks was calculated using 3 classification schemes, tumor proportion score (TPS)-based 3-level classification and TPS-based binary classification using TPS ≥1% or TPS ≥50% as the cutoff. Clinicopathological characteristics were analyzed for cases with discordant PD-L1 expression. PD-L1 expression in 2 paired paraffin blocks of surgical NSCLC specimens was highly correlated from a single tumor ( R2 =0.89) in the overall trend. The overall discordance rates were 10.9%, 7.4%, and 3.5% respectively when using TPS-based 3-level classification or binary classification. No statistical differences were observed in PD-L1 expression discordance rates when patients were stratified by age, sex, smoking status, histologic types, TNM stage, or years of paraffin blocks ( P >0.05). The presence of a solid histologic pattern was associated with a higher PD-L1 expression discordance rate in adenocarcinomas ( P <0.05). Twenty-five cases with discordant PD-L1 expression were divided into 2 categories: spatial heterogeneity without recognizable morphology difference (76%) and spatial heterogeneity with significantly different morphology (24%). The discordance rate in TPS scores was much higher in cases with different morphology than those without different morphology. One representative paraffin block containing adequate neoplastic tissue may be adequate to determine PD-L1 expression in most of the surgical specimens of NSCLC. In cases that harbored different morphology in different paraffin blocks, the dual-block immunohistochemistry assessment method is recommended due to the intratumoral heterogeneity.
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4
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Krog RT, de Miranda NFCC, Vahrmeijer AL, Kooreman NG. The Potential of Induced Pluripotent Stem Cells to Advance the Treatment of Pancreatic Ductal Adenocarcinoma. Cancers (Basel) 2021; 13:cancers13225789. [PMID: 34830945 PMCID: PMC8616212 DOI: 10.3390/cancers13225789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/12/2021] [Accepted: 11/13/2021] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Despite improvements in the treatment of several cancer types, the extremely poor prognosis of pancreatic cancer patients has remained unchanged over the last decades. Therefore, new therapeutic regimens for pancreatic cancer are highly needed. In this review, we will discuss the potential of induced pluripotent stem cells (iPSCs) to generate representative pancreatic cancer models that can aid the development of novel diagnostics and therapeutic strategies. Furthermore, the potential of iPSCs as pancreatic cancer vaccines or as a basis for cellular therapies will be discussed. With promising preclinical results and ongoing clinical trials, the potential of iPSCs to further the treatment of pancreatic cancer is being explored and, in turn, will hopefully provide additional therapies to increase the poor survival rates of this patient population. Abstract Advances in the treatment of pancreatic ductal adenocarcinoma (PDAC) using neoadjuvant chemoradiotherapy, chemotherapy, and immunotherapy have had minimal impact on the overall survival of patients. A general lack of immunogenic features and a complex tumor microenvironment (TME) are likely culprits for therapy refractoriness in PDAC. Induced pluripotent stem cells (iPSCs) should be explored as a means to advance the treatment options for PDAC, by providing representative in vitro models of pancreatic cancer development. In addition, iPSCs could be used for tailor-made cellular immunotherapies or as a source of tumor-associated antigens in the context of vaccination.
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Affiliation(s)
- Ricki T. Krog
- Department of Surgery, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands; (R.T.K.); (A.L.V.)
- Department of Pathology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands;
| | | | - Alexander L. Vahrmeijer
- Department of Surgery, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands; (R.T.K.); (A.L.V.)
| | - Nigel G. Kooreman
- Department of Surgery, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands; (R.T.K.); (A.L.V.)
- Correspondence:
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Lv Q, Pan X, Wang D, Rong Q, Ma B, Xie X, Zhang Y, Wang J, Hu L. Discovery of ( Z)-1-(3-((1 H-Pyrrol-2-yl)methylene)-2-oxoindolin-6-yl)-3-(isoxazol-3-yl)urea Derivatives as Novel and Orally Highly Effective CSF-1R Inhibitors for Potential Colorectal Cancer Immunotherapy. J Med Chem 2021; 64:17184-17208. [PMID: 34735158 DOI: 10.1021/acs.jmedchem.1c01184] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Inhibiting the polarization or survival of tumor-associated macrophages through blocking CSF-1/CSF-1R signal transduction has become a promising strategy for cancer immunotherapy. Herein, a series of (Z)-1-(3-((1H-pyrrol-2-yl)methylene)-2-oxoindolin-6-yl)-3-(isoxazol-3-yl)urea derivatives were designed, synthesized, and evaluated as novel and orally highly effective CSF-1R inhibitors for colorectal cancer immunotherapy. Among these derivatives, compound 21 was found to possess excellent CSF-1R inhibitory activity (IC50 = 2.1 nM) and potent antiproliferative activity against colorectal cancer cells. Compound 21 inhibited the progression of colorectal cancer by suppressing the migration of macrophages, reprograming M2-like macrophages to the M1 phenotype, and enhancing the antitumor immunity. More importantly, compound 21, as a single agent, showed significantly superior in vivo anticolorectal cancer efficacy over PLX3397, highlighting a promising candidate for the immunotherapy of colorectal cancer.
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Affiliation(s)
- Qi Lv
- Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
| | - Xiang Pan
- Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
| | - Dan Wang
- Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
| | - Quanjin Rong
- Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
| | - Ben Ma
- Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
| | - Xiaolong Xie
- Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
| | - Yinan Zhang
- Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
| | - Junwei Wang
- Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
| | - Lihong Hu
- Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
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6
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Chen L, Li H, Xie L, Zuo Z, Tian L, Liu C, Guo X. Editorial: Big Data and Machine Learning in Cancer Genomics. Front Genet 2021; 12:749584. [PMID: 34616439 PMCID: PMC8488196 DOI: 10.3389/fgene.2021.749584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 08/25/2021] [Indexed: 11/13/2022] Open
Affiliation(s)
- Lin Chen
- Department of Preventive Medicine, Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Institute of Biomedical Informatics, Henan University, Kaifeng, China
| | - Huimin Li
- Department of Preventive Medicine, Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Institute of Biomedical Informatics, Henan University, Kaifeng, China
| | - Longxiang Xie
- Department of Preventive Medicine, Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Institute of Biomedical Informatics, Henan University, Kaifeng, China
| | - Zhanjie Zuo
- Thoracic Cancer Treatment Center, Armed Police Beijing Corps Hospital, Beijing, China
| | - Liqing Tian
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Changning Liu
- CAS Key Laboratory of Topical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, China
| | - Xiangqian Guo
- Department of Preventive Medicine, Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Institute of Biomedical Informatics, Henan University, Kaifeng, China
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7
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Lemaire V, Shemesh CS, Rotte A. Pharmacology-based ranking of anti-cancer drugs to guide clinical development of cancer immunotherapy combinations. J Exp Clin Cancer Res 2021; 40:311. [PMID: 34598713 PMCID: PMC8485537 DOI: 10.1186/s13046-021-02111-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 09/20/2021] [Indexed: 12/26/2022] Open
Abstract
The success of antibodies targeting Programmed cell death protein 1 (PD-1) and its ligand L1 (PD-L1) in cancer treatment and the need for improving response rates has led to an increased demand for the development of combination therapies with anti-PD-1/PD-L1 blockers as a backbone. As more and more drugs with translational potential are identified, the number of clinical trials evaluating combinations has increased considerably and the demand to prioritize combinations having potential for success over the ones that are unlikely to be successful is rising. This review aims to address the unmet need to prioritize cancer immunotherapy combinations through comprehensive search of potential drugs and ranking them based on their mechanism of action, clinical efficacy and safety. As lung cancer is one of the most frequently studied cancer types, combinations that showed potential for the treatment of lung cancer were prioritized. A literature search was performed to identify drugs with potential in combination with PD-1/PD-L1 blockers and the drugs were ranked based on their mechanism of action and known clinical efficacy. Nineteen drugs or drug classes were identified from an internal list of lead molecules and were scored for their clinical potential. Efficacy and safety data from pivotal studies was summarized for the selected drugs. Further, overlap of mechanisms of action and adverse events was visualized using a heat map illustration to help screen drugs for combinations. The quantitative scoring methodology provided in this review could serve as a template for preliminary ranking of novel combinations.
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Affiliation(s)
- Vincent Lemaire
- Department of Clinical Pharmacology, Genentech Inc, 1 DNA Way, South San Francisco, CA, 94080, USA.
| | - Colby S Shemesh
- Department of Clinical Pharmacology, Genentech Inc, 1 DNA Way, South San Francisco, CA, 94080, USA.
| | - Anand Rotte
- Independent Consultant, Santa Clara, USA
- Current address: Clinical and Regulatory Affairs, Arcellx, Gaithersburg, USA
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8
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Maio M, Lahn M, Di Giacomo AM, Covre A, Calabrò L, Ibrahim R, Fox B. A vision of immuno-oncology: the Siena think tank of the Italian network for tumor biotherapy (NIBIT) foundation. J Exp Clin Cancer Res 2021; 40:240. [PMID: 34301276 PMCID: PMC8298945 DOI: 10.1186/s13046-021-02023-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 06/18/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The yearly Think Tank Meeting of the Italian Network for Tumor Biotherapy (NIBIT) Foundation, brings together in Siena, Tuscany (Italy), experts in immuno-oncology to review the learnings from current immunotherapy treatments, and to propose new pre-clinical and clinical investigations in selected research areas. MAIN: While immunotherapies in non-small cell lung cancer and melanoma led to practice changing therapies, the same therapies had only modest benefit for patients with other malignancies, such as mesothelioma and glioblastoma. One way to improve on current immunotherapies is to alter the sequence of each combination agent. Matching the immunotherapy to the host's immune response may thus improve the activity of the current treatments. A second approach is to combine current immunotherapies with novel agents targeting complementary mechanisms. Identifying the appropriate novel agents may require different approaches than the traditional laboratory-based discovery work. For example, artificial intelligence-based research may help focusing the search for innovative and most promising combination partners. CONCLUSION Novel immunotherapies are needed in cancer patients with resistance to or relapse after current immunotherapeutic drugs. Such new treatments may include targeted agents or monoclonal antibodies to overcome the immune-suppressive tumor microenvironment. The mode of combining the novel treatments, including vaccines, needs to be matched to the patient's immune status for achieving the maximum benefit. In this scenario, specific attention should be also paid nowadays to the immune intersection between COVID-19 and cancer.
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Affiliation(s)
- Michele Maio
- Center for Immuno-Oncology, Medical Oncology and Immunotherapy, University Hospital of Siena, Viale Mario Bracci, 16, Siena, Italy.
- Italian Network for Tumor Bio-Immunotherapy Foundation Onlus, Siena, Italy.
| | - Michael Lahn
- iOnctura SA, Avenue Secheron 15, Geneva, Switzerland
| | - Anna Maria Di Giacomo
- Center for Immuno-Oncology, Medical Oncology and Immunotherapy, University Hospital of Siena, Viale Mario Bracci, 16, Siena, Italy
- Italian Network for Tumor Bio-Immunotherapy Foundation Onlus, Siena, Italy
| | - Alessia Covre
- Center for Immuno-Oncology, Medical Oncology and Immunotherapy, University Hospital of Siena, Viale Mario Bracci, 16, Siena, Italy
| | - Luana Calabrò
- Center for Immuno-Oncology, Medical Oncology and Immunotherapy, University Hospital of Siena, Viale Mario Bracci, 16, Siena, Italy
| | - Ramy Ibrahim
- Parker Institute for Cancer Immunotherapy, 1 Letterman Drive, San Francisco, 94012, USA
| | - Bernard Fox
- Earle A. Chiles Research Institute at the Robert W. Franz Cancer Center, 4805 NE Glisan St. Suite 2N35, Portland, OR, 97213, USA
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Hassan Venkatesh G, Bravo P, Shaaban Moustafa Elsayed W, Amirtharaj F, Wojtas B, Abou Khouzam R, Hussein Nawafleh H, Mallya S, Satyamoorthy K, Dessen P, Rosselli F, Thiery J, Chouaib S. Hypoxia increases mutational load of breast cancer cells through frameshift mutations. Oncoimmunology 2020; 9:1750750. [PMID: 32363122 PMCID: PMC7185205 DOI: 10.1080/2162402x.2020.1750750] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 02/23/2020] [Accepted: 03/12/2020] [Indexed: 12/21/2022] Open
Abstract
Tumor hypoxia-induced downregulation of DNA repair pathways and enhanced replication stress are potential sources of genomic instability. A plethora of genetic changes such as point mutations, large deletions and duplications, microsatellite and chromosomal instability have been discovered in cells under hypoxic stress. However, the influence of hypoxia on the mutational burden of the genome is not fully understood. Here, we attempted to elucidate the DNA damage response and repair patterns under different types of hypoxic stress. In addition, we examined the pattern of mutations exclusively induced under chronic and intermittent hypoxic conditions in two breast cancer cell lines using exome sequencing. Our data indicated that hypoxic stress resulted in transcriptional downregulation of DNA repair genes which can impact the DNA repair induced during anoxic as well as reoxygenated conditions. In addition, our findings demonstrate that hypoxic conditions increased the mutational burden, characterized by an increase in frameshift insertions and deletions. The somatic mutations were random and non-recurring, as huge variations within the technical duplicates were recognized. Hypoxia also resulted in an increase in the formation of potential neoantigens in both cell lines. More importantly, these data indicate that hypoxic stress mitigates DNA damage repair pathways and causes an increase in the mutational burden of tumor cells, thereby interfering with hypoxic cancer cell immunogenicity.
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Affiliation(s)
- Goutham Hassan Venkatesh
- Thumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, United Arab Emirates
| | - Pamela Bravo
- INSERM UMR 1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, Faculty of Medicine, University Paris-Saclay, Villejuif, France
| | - Walid Shaaban Moustafa Elsayed
- Thumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, United Arab Emirates.,Department of Oral Biology, College of Dentistry, Gulf Medical University, Ajman, United Arab Emirates
| | - Francis Amirtharaj
- Thumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, United Arab Emirates
| | - Bartosz Wojtas
- Laboratory of Molecular Neurobiology, Nencki Institute of Experimental Biology, PAS, 02-093, Warsaw, Poland
| | - Raefa Abou Khouzam
- Thumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, United Arab Emirates
| | - Husam Hussein Nawafleh
- Thumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, United Arab Emirates
| | - Sandeep Mallya
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, India
| | - Kapaettu Satyamoorthy
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, India
| | - Philippe Dessen
- Bioinformatic Core Facility, INSERM US23/CNRS UMS3655, Gustave Roussy Cancer Campus, Villejuif, France
| | - Filippo Rosselli
- CNRS UMR9019, Genome Integrity and Cancers, Gustave Roussy, Villejuif, France
| | - Jerome Thiery
- INSERM UMR 1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, Faculty of Medicine, University Paris-Saclay, Villejuif, France
| | - Salem Chouaib
- Thumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, United Arab Emirates.,INSERM UMR 1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, Faculty of Medicine, University Paris-Saclay, Villejuif, France
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10
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Whelan CJ, Cunningham JJ. Resistance is not the end: lessons from pest management. Cancer Control 2020; 27:1073274820922543. [PMID: 32407140 PMCID: PMC7238850 DOI: 10.1177/1073274820922543] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 02/10/2020] [Accepted: 04/01/2020] [Indexed: 12/14/2022] Open
Abstract
The "war on cancer" began over 40 years ago with the signing of the National Cancer Act of 1971. Currently, complete eradication has proven possible in early stage premetastatic disease with increasingly successful early detection and surgery protocols; however, late stage metastatic disease remains invariably fatal. One of the main causes of treatment failure in metastatic disease is the ability of cancer cells to evolve resistance to currently available therapies. Evolution of resistance to control measures is a universal problem. While it may seem that the mechanisms of resistance employed by cancer cells are impossible to control, we show that many of the resistance mechanisms are mirrored in agricultural pests. In this way, we argue that measures developed in the agricultural industry to slow or prevent pesticide resistance could be adopted in clinical cancer biology to do the same. The agriculture industry recognized the problem of pesticide resistance and responded by developing and enforcing guidelines on resistance management and prevention. These guidelines, known as integrated pest management (IPM), do not encourage eradication of pests but instead strive to maintain pests, even with the presence of resistant strains, at a level that does not cause economic damage to the crops. Integrated pest management inspired management of metastatic cancer could result in the slowing or curtailing of widespread resistance to treatment, reducing overall drug usage, and increasing the survival and quality of life of patients with cancer. Using IPM principles as a foundation and shifting the goal of treatment of metastatic disease to long-term management will require close monitoring of evolving tumor populations, judicious application of currently available therapies, and development of new criteria of success.
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Affiliation(s)
- Christopher J. Whelan
- Cancer Biology and Evolution Program, and Cancer Physiology, Moffitt Cancer Center & Research Institute, Tampa, FL, USA
| | - Jessica J. Cunningham
- Department of Integrated Mathematical Oncology, Moffitt Cancer Center & Research Institute, Tampa, FL, USA
- Department of Data Science and Knowledge Engineering, Maastricht University, Maastricht, the Netherlands
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11
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Ijsselsteijn ME, van der Breggen R, Farina Sarasqueta A, Koning F, de Miranda NFCC. A 40-Marker Panel for High Dimensional Characterization of Cancer Immune Microenvironments by Imaging Mass Cytometry. Front Immunol 2019; 10:2534. [PMID: 31736961 PMCID: PMC6830340 DOI: 10.3389/fimmu.2019.02534] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 10/11/2019] [Indexed: 11/13/2022] Open
Abstract
Multiplex immunophenotyping technologies are indispensable for a deeper understanding of biological systems. Until recently, high-dimensional cellular analyses implied the loss of tissue context as they were mostly performed in single-cell suspensions. The advent of imaging mass cytometry introduced the possibility to simultaneously detect a multitude of cellular markers in tissue sections. This technique can be applied to various tissue sources including snap-frozen and formalin-fixed, paraffin-embedded (FFPE) tissues. However, a number of methodological challenges must be overcome when developing large antibody panels in order to preserve signal intensity and specificity of antigen detection. We report the development of a 40-marker panel for imaging mass cytometry on FFPE tissues with a particular focus on the study of cancer immune microenvironments. It comprises a variety of immune cell markers including lineage and activation markers as well as surrogates of cancer cell states and tissue-specific markers (e.g., stroma, epithelium, vessels) for cellular contextualization within the tissue. Importantly, we developed an optimized workflow for maximum antibody performance by separating antibodies into two distinct incubation steps, at different temperatures and incubation times, shown to significantly improve immunodetection. Furthermore, we provide insight into the antibody validation process and discuss why some antibodies and/or cellular markers are not compatible with the technique. This work is aimed at supporting the implementation of imaging mass cytometry in other laboratories by describing methodological procedures in detail. Furthermore, the panel described here is an excellent immune monitoring tool that can be readily applied in the context of cancer research.
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Affiliation(s)
| | | | | | - Frits Koning
- Department of Pathology, Leiden University Medical Center, Leiden, Netherlands.,Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Leiden, Netherlands
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