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He J, Li W, Zhao W, Shen H, Chang Y, Liu B, He Q, Yu H, Wang Y, Shi L, Cai X. Potential of lncRNAs to regulate cuproptosis in hepatocellular carcinoma: Establishment and validation of a novel risk model. Heliyon 2024; 10:e24453. [PMID: 38312553 PMCID: PMC10835266 DOI: 10.1016/j.heliyon.2024.e24453] [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: 09/11/2023] [Revised: 12/28/2023] [Accepted: 01/09/2024] [Indexed: 02/06/2024] Open
Abstract
Cuproptosis, a distinct form of programmed cell death, is an emerging field in oncology with promising implications. This novel mode of cell death has the potential to become a regulatory target for tumor therapy, thus expanding the currently limited treatment options available for patients with cancer. Our research team focused on investigating the role of functional long non-coding RNA (lncRNAs) in hepatocellular carcinoma (HCC). We were particularly intrigued by the potential implications of HCC-lncRNAs on cuproptosis. Through a comprehensive analysis, we identified three cuproptosis-related lncRNAs (CRLs): AC018690.1, AL050341.2, and LINC02038. These lncRNAs were found to influence the sensitivity of HCC to cuproptosis. Based on our results, we constructed a risk model represented by the equation: risk score = 0.82 * AC018690.1 + 0.65 * AL050341.2 + 0.61 * LINC02038. Notably, significant disparities were observed in clinical features, such as the response rate to immunotherapy and targeted therapy, as well as in cellular characteristics, including the composition of the tumor immune microenvironment (TIME), when comparing the high- and low-risk groups. Most importantly, knockdown of these CRLs was confirmed to significantly weaken the resistance to cuproptosis in HCC. This effect resulted from the accelerated accumulation of lipoacylated-DLAT and lipoacylated-DLST. In summary, we identified three CRLs in HCC and established a novel risk model with potential clinical applications. Additionally, we proposed a potential therapeutic method consisting of sorafenib-copper ionophores-immunotherapy.
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Affiliation(s)
- Jing He
- Zhejiang Provincial Key Laboratory of Laparoscopic Technology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, China
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, China
- Zhejiang Minimal Invasive Diagnosis and Treatment Technology Research Center of Severe Hepatobiliary Disease, Zhejiang University, Hangzhou, 310016, China
- Zhejiang Research and Development Engineering Laboratory of Minimally Invasive Technology and Equipment, Zhejiang University, Hangzhou, 310016, China
- Zhejiang University Cancer Center, Zhejiang University, Hangzhou, 310016, China
| | - Weiqi Li
- Zhejiang Provincial Key Laboratory of Laparoscopic Technology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, China
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, China
- Zhejiang Minimal Invasive Diagnosis and Treatment Technology Research Center of Severe Hepatobiliary Disease, Zhejiang University, Hangzhou, 310016, China
- Zhejiang Research and Development Engineering Laboratory of Minimally Invasive Technology and Equipment, Zhejiang University, Hangzhou, 310016, China
- Zhejiang University Cancer Center, Zhejiang University, Hangzhou, 310016, China
| | - Weijun Zhao
- Zhejiang Provincial Key Laboratory of Laparoscopic Technology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, China
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, China
- Zhejiang Minimal Invasive Diagnosis and Treatment Technology Research Center of Severe Hepatobiliary Disease, Zhejiang University, Hangzhou, 310016, China
- Zhejiang Research and Development Engineering Laboratory of Minimally Invasive Technology and Equipment, Zhejiang University, Hangzhou, 310016, China
- Zhejiang University Cancer Center, Zhejiang University, Hangzhou, 310016, China
| | - Hao Shen
- Zhejiang Provincial Key Laboratory of Laparoscopic Technology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, China
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, China
- Zhejiang Minimal Invasive Diagnosis and Treatment Technology Research Center of Severe Hepatobiliary Disease, Zhejiang University, Hangzhou, 310016, China
- Zhejiang Research and Development Engineering Laboratory of Minimally Invasive Technology and Equipment, Zhejiang University, Hangzhou, 310016, China
- Zhejiang University Cancer Center, Zhejiang University, Hangzhou, 310016, China
| | - Yushun Chang
- Zhejiang Provincial Key Laboratory of Laparoscopic Technology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, China
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, China
- Zhejiang Minimal Invasive Diagnosis and Treatment Technology Research Center of Severe Hepatobiliary Disease, Zhejiang University, Hangzhou, 310016, China
- Zhejiang Research and Development Engineering Laboratory of Minimally Invasive Technology and Equipment, Zhejiang University, Hangzhou, 310016, China
- Zhejiang University Cancer Center, Zhejiang University, Hangzhou, 310016, China
| | - Boqiang Liu
- Zhejiang Provincial Key Laboratory of Laparoscopic Technology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, China
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, China
- Zhejiang Minimal Invasive Diagnosis and Treatment Technology Research Center of Severe Hepatobiliary Disease, Zhejiang University, Hangzhou, 310016, China
- Zhejiang Research and Development Engineering Laboratory of Minimally Invasive Technology and Equipment, Zhejiang University, Hangzhou, 310016, China
- Zhejiang University Cancer Center, Zhejiang University, Hangzhou, 310016, China
| | - Qiang He
- Department of Hepatobiliary Surgery, Linyi People's Hospital, Linyi, Shandong, China
| | - Hong Yu
- Zhejiang Provincial Key Laboratory of Laparoscopic Technology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, China
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, China
- Zhejiang Minimal Invasive Diagnosis and Treatment Technology Research Center of Severe Hepatobiliary Disease, Zhejiang University, Hangzhou, 310016, China
- Zhejiang Research and Development Engineering Laboratory of Minimally Invasive Technology and Equipment, Zhejiang University, Hangzhou, 310016, China
- Zhejiang University Cancer Center, Zhejiang University, Hangzhou, 310016, China
| | - Yifan Wang
- Zhejiang Provincial Key Laboratory of Laparoscopic Technology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, China
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, China
- Zhejiang Minimal Invasive Diagnosis and Treatment Technology Research Center of Severe Hepatobiliary Disease, Zhejiang University, Hangzhou, 310016, China
- Zhejiang Research and Development Engineering Laboratory of Minimally Invasive Technology and Equipment, Zhejiang University, Hangzhou, 310016, China
- Zhejiang University Cancer Center, Zhejiang University, Hangzhou, 310016, China
| | - Liang Shi
- Zhejiang Provincial Key Laboratory of Laparoscopic Technology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, China
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, China
- Zhejiang Minimal Invasive Diagnosis and Treatment Technology Research Center of Severe Hepatobiliary Disease, Zhejiang University, Hangzhou, 310016, China
- Zhejiang Research and Development Engineering Laboratory of Minimally Invasive Technology and Equipment, Zhejiang University, Hangzhou, 310016, China
- Zhejiang University Cancer Center, Zhejiang University, Hangzhou, 310016, China
| | - Xiujun Cai
- Zhejiang Provincial Key Laboratory of Laparoscopic Technology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, China
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, China
- Zhejiang Minimal Invasive Diagnosis and Treatment Technology Research Center of Severe Hepatobiliary Disease, Zhejiang University, Hangzhou, 310016, China
- Zhejiang Research and Development Engineering Laboratory of Minimally Invasive Technology and Equipment, Zhejiang University, Hangzhou, 310016, China
- Zhejiang University Cancer Center, Zhejiang University, Hangzhou, 310016, China
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Joest EF, Tampé R. Design principles for engineering light-controlled antibodies. Trends Biotechnol 2023; 41:1501-1517. [PMID: 37507295 DOI: 10.1016/j.tibtech.2023.06.006] [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] [Received: 02/27/2023] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 07/30/2023]
Abstract
Engineered antibodies are essential tools for research and advanced pharmacy. In the development of therapeutics, antibodies are excellent candidates as they offer both target recognition and modulation. Thanks to the latest advances in biotechnology, light-activated antibody fragments can be constructed to control spontaneous antigen interaction with high spatiotemporal precision. To implement conditional antigen binding, several optogenetic and optochemical engineering concepts have recently been developed. Here, we highlight the various strategies and discuss the features of opto-conditional antibodies. Each concept offers intrinsic advantages beneficial to different applications. In summary, the novel design approaches constitute a complementary toolset to promote current and upcoming antibody technologies with ultimate precision.
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Affiliation(s)
- Eike F Joest
- Institute of Biochemistry, Biocenter, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt a.M., Germany.
| | - Robert Tampé
- Institute of Biochemistry, Biocenter, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt a.M., Germany.
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Liu P, Li W, Qiu G, Chen J, Liu Y, Wen Z, Liang M, Zhao Y. Multiparametric MRI combined with clinical factors to predict glypican-3 expression of hepatocellular carcinoma. Front Oncol 2023; 13:1142916. [PMID: 38023195 PMCID: PMC10666788 DOI: 10.3389/fonc.2023.1142916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
Objectives The present study aims at establishing a noninvasive and reliable model for the preoperative prediction of glypican 3 (GPC3)-positive hepatocellular carcinoma (HCC) based on multiparametric magnetic resonance imaging (MRI) and clinical indicators. Methods As a retrospective study, the subjects included 158 patients from two institutions with surgically-confirmed single HCC who underwent preoperative MRI between 2020 and 2022. The patients, 102 from institution I and 56 from institution II, were assigned to the training and the validation sets, respectively. The association of the clinic-radiological variables with the GPC3 expression was investigated through performing univariable and multivariable logistic regression (LR) analyses. The synthetic minority over-sampling technique (SMOTE) was used to balance the minority group (GPC3-negative HCCs) in the training set, and diagnostic performance was assessed by the area under the curve (AUC) and accuracy. Next, a prediction nomogram was developed and validated for patients with GPC3-positive HCC. The performance of the nomogram was evaluated through examining its calibration and clinical utility. Results Based on the results obtained from multivariable analyses, alpha-fetoprotein levels > 20 ng/mL, 75th percentile ADC value < 1.48 ×103 mm2/s and R2* value ≥ 38.6 sec-1 were found to be the significant independent predictors of GPC3-positive HCC. The SMOTE-LR model based on three features achieved the best predictive performance in the training (AUC, 0.909; accuracy, 83.7%) and validation sets (AUC, 0.829; accuracy, 82.1%) with a good calibration performance and clinical usefulness. Conclusions The nomogram combining multiparametric MRI and clinical indicators is found to have satisfactory predictive efficacy for preoperative prediction of GPC3-positive HCC. Accordingly, the proposed method can promote individualized risk stratification and further treatment decisions of HCC patients.
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Affiliation(s)
- Peijun Liu
- Department of Radiology, Central People’s Hospital of Zhanjiang, Zhanjiang, China
| | - Weiqiu Li
- Department of Radiology, The First People’s Hospital of Zhaoqing, Zhaoqing, China
| | - Ganbin Qiu
- Department of Radiology, The First People’s Hospital of Zhaoqing, Zhaoqing, China
| | - Jincan Chen
- Department of Radiology, The First People’s Hospital of Zhaoqing, Zhaoqing, China
| | - Yonghui Liu
- Department of Radiology, The First People’s Hospital of Zhaoqing, Zhaoqing, China
| | - Zhongyan Wen
- Department of Radiology, The First People’s Hospital of Zhaoqing, Zhaoqing, China
| | - Mei Liang
- Department of Radiology, The First People’s Hospital of Zhaoqing, Zhaoqing, China
| | - Yue Zhao
- Department of Radiology, Central People’s Hospital of Zhanjiang, Zhanjiang, China
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Liu Q, Song Q, Luo C, Wei J, Xu Y, Zhao L, Wang Y. A novel bispecific antibody as an immunotherapeutic agent in hepatocellular carcinoma. Mol Immunol 2023; 162:125-132. [PMID: 37677989 DOI: 10.1016/j.molimm.2023.08.007] [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] [Received: 03/27/2023] [Revised: 08/04/2023] [Accepted: 08/20/2023] [Indexed: 09/09/2023]
Abstract
Hepatocellular carcinoma (HCC) remains one of the most common and highly fatal malignancies in humans worldwide with increasing prevalence and limited therapeutic options. For many decades, many researchers have attempted to find effective curative methods for HCC and great strides have been made. GPC3 is overexpressed in HCC, but not in normal liver, making it a rational immunotherapeutic target for HCC. GC33, a humanized mAb directed against GPC3, is a safe and well-tolerated therapy choice for patients with HCC, which tested in a phase I trial in advanced HCC patients. Phase II trials of GC33 to evaluate its efficacy and safety in advanced or metastatic HCC, showed no significant differences in overall survival and progression-free survival compared with the placebo. Retrospective analysis indicates that high drug exposure and high CD16 expression may contribute to the clinical efficacy of GC33. Chugai Pharmaceutical has restarted its Phase I trial of GC33, continuing to explore its clinical value targeting GPC3 in solid tumors. To enhance the antitumor potency of GC33, we designed a GPC3/CD16A bispecific antibody (QDEB). In this study, we obtained QDEB at high purity and assessed its effectiveness in the therapy of HCC compared with GC33. In vitro cytotoxicity assays and in vivo experiments demonstrated that QDEB could enhance anti-tumor efficacy compared with GC33. CD16A activation and increased cytokines release were associated with higher anti-tumor activity. In conclusion, this bispecific antibody may possibly help develop new therapeutic strategies for HCC and develop new treatment options in the future.
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Affiliation(s)
- Qingxia Liu
- Department of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China; Sanhome R&D Centre, Nanjing Sanhome Pharmaceutical Co., Ltd., Nanjing 221116, PR China
| | - Qifeng Song
- Sanhome R&D Centre, Nanjing Sanhome Pharmaceutical Co., Ltd., Nanjing 221116, PR China
| | - Cheng Luo
- Sanhome R&D Centre, Nanjing Sanhome Pharmaceutical Co., Ltd., Nanjing 221116, PR China
| | - Jian Wei
- Sanhome R&D Centre, Nanjing Sanhome Pharmaceutical Co., Ltd., Nanjing 221116, PR China
| | - Yao Xu
- Sanhome R&D Centre, Nanjing Sanhome Pharmaceutical Co., Ltd., Nanjing 221116, PR China
| | - Liwen Zhao
- Sanhome R&D Centre, Nanjing Sanhome Pharmaceutical Co., Ltd., Nanjing 221116, PR China
| | - Yong Wang
- Department of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China; Sanhome R&D Centre, Nanjing Sanhome Pharmaceutical Co., Ltd., Nanjing 221116, PR China.
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Liu X, Tan Q, Wen J, Wang X, Yang G, Li Y, Lu M, Ye W, Si A, Ma S, Ding T, Sun L, Liu F, Zhang M, Jiang T, Gao W. Improving the cytotoxicity of immunotoxins by reducing the affinity of the antibody in acidic pH. J Transl Med 2023; 21:572. [PMID: 37626430 PMCID: PMC10463491 DOI: 10.1186/s12967-023-04210-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Accepted: 05/19/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND Immunotoxins are antibody-toxin conjugates that bind to surface antigens and exert effective cytotoxic activity after internalization into tumor cells. Immunotoxins exhibit effective cytotoxicity and have been approved by the FDA to treat multiple hematological malignancies, such as hairy cell leukemia and cutaneous T-cell lymphoma. However, most of the internalized immunotoxin is degraded in lysosomes, and only approximately 5% of free toxin escapes into the cytosol to exert cytotoxicity. Many studies have improved immunotoxins by engineering the toxin fragment to reduce immunogenicity or increase stability, but how the antibody fragment contributes to the activity of immunotoxins has not been well demonstrated. METHODS In the current study, we used 32A9 and 42A1, two anti-GPC3 antibodies with similar antigen-binding capabilities and internalization rates, to construct scFv-mPE24 immunotoxins and evaluated their in vitro and in vivo antitumor activities. Next, the antigen-binding capacity, trafficking, intracellular protein stability and release of free toxin of 32A9 scFv-mPE24 and 42A1 scFv-mPE24 were compared to elucidate their different antitumor activities. Furthermore, we used a lysosome inhibitor to evaluate the degradation behavior of 32A9 scFv-mPE24 and 42A1 scFv-mPE24. Finally, the antigen-binding patterns of 32A9 and 42A1 were compared under neutral and acidic pH conditions. RESULTS Although 32A9 and 42A1 had similar antigen binding capacities and internalization rates, 32A9 scFv-mPE24 had superior antitumor activity compared to 42A1 scFv-mPE24. We found that 32A9 scFv-mPE24 exhibited faster degradation and drove efficient free toxin release compared to 42A1 scFv-mPE24. These phenomena were determined by the different degradation behaviors of 32A9 scFv-mPE24 and 42A1 scFv-mPE24 in lysosomes. Moreover, 32A9 was sensitive to the low-pH environment, which made the 32A9 conjugate easily lose antigen binding and undergo degradation in lysosomes, and the free toxin was then efficiently produced to exert cytotoxicity, whereas 42A1 was resistant to the acidic environment, which kept the 42A1 conjugate relatively stable in lysosomes and delayed the release of free toxin. CONCLUSIONS These results showed that a low pH-sensitive antibody-based immunotoxin degraded faster in lysosomes, caused effective free toxin release, and led to improved cytotoxicity compared to an immunotoxin based on a normal antibody. Our findings suggested that a low pH-sensitive antibody might have an advantage in the design of immunotoxins and other lysosomal degradation-dependent antibody conjugate drugs.
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Affiliation(s)
- Xiaoyu Liu
- School of Basic Medical Sciences and Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, 101 Longmian Road, Xuehai Building, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Qingqing Tan
- Department of Gynecology Oncology, Changzhou Maternal and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, China
| | - Jiaqi Wen
- School of Basic Medical Sciences and Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, 101 Longmian Road, Xuehai Building, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Xufei Wang
- School of Basic Medical Sciences and Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, 101 Longmian Road, Xuehai Building, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Gang Yang
- School of Basic Medical Sciences and Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, 101 Longmian Road, Xuehai Building, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Yuxiao Li
- Department of Endocrinology, The First Affiliated Hospital With Nanjing Medical University, Nanjing, China
| | - Ming Lu
- School of Basic Medical Sciences and Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, 101 Longmian Road, Xuehai Building, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Wei Ye
- School of Basic Medical Sciences and Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, 101 Longmian Road, Xuehai Building, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Anfeng Si
- Department of Surgical Oncology, Jinling Hospital, Medical School of Nanjing University, 34 Yanggongjing Road, Nanjing, 210000, Jiangsu, People's Republic of China
| | - Sujuan Ma
- School of Basic Medical Sciences and Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, 101 Longmian Road, Xuehai Building, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Tong Ding
- School of Basic Medical Sciences and Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, 101 Longmian Road, Xuehai Building, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Luan Sun
- School of Basic Medical Sciences and Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, 101 Longmian Road, Xuehai Building, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Fang Liu
- School of Basic Medical Sciences and Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, 101 Longmian Road, Xuehai Building, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Mei Zhang
- Department of Endocrinology, The First Affiliated Hospital With Nanjing Medical University, Nanjing, China
| | - Tao Jiang
- Department of Surgical Oncology, Jinling Hospital, Medical School of Nanjing University, 34 Yanggongjing Road, Nanjing, 210000, Jiangsu, People's Republic of China.
| | - Wei Gao
- School of Basic Medical Sciences and Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, 101 Longmian Road, Xuehai Building, Nanjing, 211166, Jiangsu, People's Republic of China.
- The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou Second People's Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, China.
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Egbuna C, Patrick‐Iwuanyanwu KC, Onyeike EN, Uche CZ, Ogoke UP, Riaz M, Ibezim EN, Khan J, Adedokun KA, Imodoye SO, Bello IO, Awuchi CG. Wnt/β-catenin signaling pathway inhibitors, glycyrrhizic acid, solanine, polyphyllin I, crocin, hypericin, tubeimoside-1, diosmin, and rutin in medicinal plants have better binding affinities and anticancer properties: Molecular docking and ADMET study. Food Sci Nutr 2023; 11:4155-4169. [PMID: 37457177 PMCID: PMC10345731 DOI: 10.1002/fsn3.3405] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 04/14/2023] [Accepted: 04/18/2023] [Indexed: 07/18/2023] Open
Abstract
Wnt/β-catenin signaling pathway plays a role in cancer development, organogenesis, and embryogenesis. The abnormal activation promotes cancer stem cell renewal, proliferation, and differentiation. In the present study, molecular docking simulation and ADMET studies were carried out on selected bioactive compounds in search of β-catenin protein inhibitors for drug discovery against cancer. Blind docking simulation was performed using PyRx software on Autodock Vina. β-catenin protein (PDB ID: 1jdh) and 313 bioactive compounds (from PubChem database) with selected standard anticancer drugs were used for molecular docking. The ADMET properties of the best-performing compounds were calculated using SwissADME and pkCMS web servers. The results obtained from the molecular docking study showed that glycyrrhizic acid, solanine, polyphyllin I, crocin, hypericin, tubeimoside-1, diosmin, and rutin had the best binding interactions with β-catenin protein based on their binding affinities. Glycyrrhizic acid and solanine had the same and lowest binding energy of -8.5 kcal/mol. This was followed by polyphyllin I with -8.4 kcal/mol, and crocin, hypericin, and tubeimoside-1 which all had a binding energy of 8.1 kcal/mol. Other top-performing compounds include diosmin and rutin with binding energy of -8.0 kcal/mol. The ADMET study revealed that the following compounds glycyrrhizic acid, solanine, polyphyllin I, crocin, hypericin, tubeimoside-1, diosmin, rutin, and baicalin all violated Lipinski's rule of 5 which implies poor oral bioavailability. However, based on the binding energy score, it was suggested that these pharmacologically active compounds are potential molecules to be tested against cancer.
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Affiliation(s)
- Chukwuebuka Egbuna
- Africa Centre of Excellence in Public Health and Toxicological Research (ACE‐PUTOR)University of Port‐HarcourtPort HarcourtNigeria
- Department of Biochemistry, Faculty of ScienceUniversity of Port HarcourtPort HarcourtNigeria
- Department of Biochemistry, Faculty of Natural SciencesChukwuemeka Odumegwu Ojukwu UniversityUliNigeria
| | - Kingsley C. Patrick‐Iwuanyanwu
- Africa Centre of Excellence in Public Health and Toxicological Research (ACE‐PUTOR)University of Port‐HarcourtPort HarcourtNigeria
- Department of Biochemistry, Faculty of ScienceUniversity of Port HarcourtPort HarcourtNigeria
| | - Eugene N. Onyeike
- Africa Centre of Excellence in Public Health and Toxicological Research (ACE‐PUTOR)University of Port‐HarcourtPort HarcourtNigeria
- Department of Biochemistry, Faculty of ScienceUniversity of Port HarcourtPort HarcourtNigeria
| | - Chukwuemelie Zedech Uche
- Department of Medical Biochemistry and Molecular Biology, Faculty of Basic Medical SciencesUniversity of NigeriaNsukkaNigeria
| | - Uchenna Petronilla Ogoke
- Biostatistics and Computation Unit, Department of Mathematics and StatisticsUniversity of Port HarcourtPort HarcourtNigeria
| | - Muhammad Riaz
- Department of Allied Health SciencesUniversity of SargodhaSargodhaPakistan
| | - Ebube Nnamdi Ibezim
- Department of Biochemistry, Faculty of Natural SciencesChukwuemeka Odumegwu Ojukwu UniversityUliNigeria
| | - Johra Khan
- Department of Medical Laboratory Sciences, College of Applied Medical SciencesMajmaah UniversityAl MajmaahSaudi Arabia
- Health and Basic Sciences Research CenterMajmaah UniversityAl MajmaahSaudi Arabia
| | - Kamoru A. Adedokun
- Department of ImmunologyRoswell Park Comprehensive Cancer CenterBuffaloNew YorkUSA
| | - Sikiru O. Imodoye
- Department of Oncological Sciences, Huntsman Cancer InstituteUniversity of UtahSalt Lake CityUtahUSA
| | - Ibrahim O. Bello
- Department of Biological SciencesSouthern Illinois University EdwardsvilleEdwardsvilleIllinoisUSA
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Dev Tripathi A, Katiyar S, Mishra A. Glypican1: a potential cancer biomarker for nanotargeted therapy. Drug Discov Today 2023:103660. [PMID: 37301249 DOI: 10.1016/j.drudis.2023.103660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/11/2023] [Accepted: 06/05/2023] [Indexed: 06/12/2023]
Abstract
Glypicans (GPCs) are generally involved in cellular signaling, growth and proliferation. Previous studies reported their roles in cancer proliferation. GPC1 is a co-receptor for a variety of growth-related ligands, thereby stimulating the tumor microenvironment by promoting angiogenesis and epithelial-mesenchymal transition (EMT). This work reviews GPC1-biomarker-assisted drug discovery by the application of nanostructured materials, creating nanotheragnostics for targeted delivery and application in liquid biopsies. The review includes details of GPC1 as a potential biomarker in cancer progression as well as a potential candidate for nano-mediated drug discovery.
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Affiliation(s)
- Abhay Dev Tripathi
- School of Biochemical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi-221005, India
| | - Soumya Katiyar
- School of Biochemical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi-221005, India
| | - Abha Mishra
- School of Biochemical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi-221005, India.
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Wang L, Wang G, Mao W, Chen Y, Rahman MM, Zhu C, Prisinzano PM, Kong B, Wang J, Lee LP, Wan Y. Bioinspired engineering of fusogen and targeting moiety equipped nanovesicles. Nat Commun 2023; 14:3366. [PMID: 37291242 PMCID: PMC10250350 DOI: 10.1038/s41467-023-39181-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 06/02/2023] [Indexed: 06/10/2023] Open
Abstract
Cell-derived small extracellular vesicles have been exploited as potent drug vehicles. However, significant challenges hamper their clinical translation, including inefficient cytosolic delivery, poor target-specificity, low yield, and inconsistency in production. Here, we report a bioinspired material, engineered fusogen and targeting moiety co-functionalized cell-derived nanovesicle (CNV) called eFT-CNV, as a drug vehicle. We show that universal eFT-CNVs can be produced by extrusion of genetically modified donor cells with high yield and consistency. We demonstrate that bioinspired eFT-CNVs can efficiently and selectively bind to targets and trigger membrane fusion, fulfilling endo-lysosomal escape and cytosolic drug delivery. We find that, compared to counterparts, eFT-CNVs significantly improve the treatment efficacy of drugs acting on cytosolic targets. We believe that our bioinspired eFT-CNVs will be promising and powerful tools for nanomedicine and precision medicine.
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Affiliation(s)
- Lixue Wang
- Department of Radiotherapy, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- The Pq Laboratory of BiomeDx/Rx, Department of Biomedical Engineering, Binghamton University, Binghamton, NY, USA
| | - Guosheng Wang
- The Pq Laboratory of BiomeDx/Rx, Department of Biomedical Engineering, Binghamton University, Binghamton, NY, USA
- Department of Pulmonary and Critical Care Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wenjun Mao
- The Pq Laboratory of BiomeDx/Rx, Department of Biomedical Engineering, Binghamton University, Binghamton, NY, USA
- Department of Cardiothoracic Surgery, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China
| | - Yundi Chen
- The Pq Laboratory of BiomeDx/Rx, Department of Biomedical Engineering, Binghamton University, Binghamton, NY, USA
| | - Md Mofizur Rahman
- The Pq Laboratory of BiomeDx/Rx, Department of Biomedical Engineering, Binghamton University, Binghamton, NY, USA
| | - Chuandong Zhu
- Department of Radiotherapy, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- The Pq Laboratory of BiomeDx/Rx, Department of Biomedical Engineering, Binghamton University, Binghamton, NY, USA
| | - Peter M Prisinzano
- The Pq Laboratory of BiomeDx/Rx, Department of Biomedical Engineering, Binghamton University, Binghamton, NY, USA
| | - Bo Kong
- Deparment of General, Visceral and Transplantation Surgery, Section of Surgical Research, Heidelberg University Hospital, Heidelberg, Germany
| | - Jing Wang
- Department of Oncology and Hematology, Yizheng Hospital of Nanjing Drum Tower Hospital Group, Yizheng, Jiangsu, China.
- Department of Hematology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China.
| | - Luke P Lee
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
- Department of Bioengineering, University of California, Berkeley, Berkeley, CA, USA.
- Department of Electrical Engineering and Computer Science, University of California at Berkeley, Berkeley, CA, USA.
- Department of Biophysics, Institute of Quantum Biophysics, Sungkyunkwan University, Suwon, Korea.
| | - Yuan Wan
- The Pq Laboratory of BiomeDx/Rx, Department of Biomedical Engineering, Binghamton University, Binghamton, NY, USA.
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9
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Li N, Quan A, Li D, Pan J, Ren H, Hoeltzel G, de Val N, Ashworth D, Ni W, Zhou J, Mackay S, Hewitt SM, Cachau R, Ho M. The IgG4 hinge with CD28 transmembrane domain improves V HH-based CAR T cells targeting a membrane-distal epitope of GPC1 in pancreatic cancer. Nat Commun 2023; 14:1986. [PMID: 37031249 PMCID: PMC10082787 DOI: 10.1038/s41467-023-37616-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 03/23/2023] [Indexed: 04/10/2023] Open
Abstract
Heterogeneous antigen expression is a key barrier influencing the activity of chimeric antigen receptor (CAR) T cells in solid tumors. Here, we develop CAR T cells targeting glypican-1 (GPC1), an oncofetal antigen expressed in pancreatic cancer. We report the generation of dromedary camel VHH nanobody (D4)-based CAR T cells targeting GPC1 and the optimization of the hinge (H) and transmembrane domain (TM) to improve activity. We find that a structurally rigid IgG4H and CD28TM domain brings the two D4 fragments in proximity, driving CAR dimerization and leading to enhanced T-cell signaling and tumor regression in pancreatic cancer models with low antigen density in female mice. Furthermore, single-cell-based proteomic and transcriptomic analysis of D4-IgG4H-CD28TM CAR T cells reveals specific genes (e.g., HMGB1) associated with high T-cell polyfunctionality. This study demonstrates the potential of VHH-based CAR T for pancreatic cancer therapy and provides an engineering strategy for developing potent CAR T cells targeting membrane-distal epitopes.
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Affiliation(s)
- Nan Li
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Alex Quan
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Dan Li
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Jiajia Pan
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Hua Ren
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Gerard Hoeltzel
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Natalia de Val
- Center for Molecular Microscopy, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, 21702, USA
| | | | - Weiming Ni
- IsoPlexis Corporation, Branford, CT, 06405, USA
| | - Jing Zhou
- IsoPlexis Corporation, Branford, CT, 06405, USA
| | - Sean Mackay
- IsoPlexis Corporation, Branford, CT, 06405, USA
| | - Stephen M Hewitt
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Raul Cachau
- Integrated Data Science Section, Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Mitchell Ho
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
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10
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Constitutive Expression of a Cytotoxic Anticancer Protein in Tumor-Colonizing Bacteria. Cancers (Basel) 2023; 15:cancers15051486. [PMID: 36900277 PMCID: PMC10000871 DOI: 10.3390/cancers15051486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 02/23/2023] [Accepted: 02/23/2023] [Indexed: 03/03/2023] Open
Abstract
Bacterial cancer therapy is a promising next-generation modality to treat cancer that often uses tumor-colonizing bacteria to deliver cytotoxic anticancer proteins. However, the expression of cytotoxic anticancer proteins in bacteria that accumulate in the nontumoral reticuloendothelial system (RES), mainly the liver and spleen, is considered detrimental. This study examined the fate of the Escherichia coli strain MG1655 and an attenuated strain of Salmonella enterica serovar Gallinarum (S. Gallinarum) with defective ppGpp synthesis after intravenous injection into tumor-bearing mice (~108 colony forming units/animal). Approximately 10% of the injected bacteria were detected initially in the RES, whereas approximately 0.01% were in tumor tissues. The bacteria in the tumor tissue proliferated vigorously to up to 109 colony forming units/g tissue, whereas those in the RES died off. RNA analysis revealed that tumor-associated E. coli activated rrnB operon genes encoding the rRNA building block of ribosome needed most during the exponential stage of growth, whereas those in the RES expressed substantially decreased levels of this gene and were cleared soon presumably by innate immune systems. Based on this finding, we engineered ΔppGpp S. Gallinarum to express constitutively a recombinant immunotoxin comprising TGFα and the Pseudomonas exotoxin A (PE38) using a constitutive exponential phase promoter, the ribosomal RNA promoter rrnB P1. The construct exerted anticancer effects on mice grafted with mouse colon (CT26) or breast (4T1) tumor cells without any notable adverse effects, suggesting that constitutive expression of cytotoxic anticancer protein from rrnB P1 occurred only in tumor tissue.
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11
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Kolluri A, Li D, Li N, Duan Z, Roberts LR, Ho M. Human VH-based chimeric antigen receptor T cells targeting glypican 3 eliminate tumors in preclinical models of HCC. Hepatol Commun 2023; 7:e0022. [PMID: 36691969 PMCID: PMC9851680 DOI: 10.1097/hc9.0000000000000022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 10/25/2022] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND AND AIMS Efficacy of chimeric antigen receptor (CAR) T cells for treating solid tumors, including HCC, remains a challenge. Nanobodies are emerging building blocks of CAR T cells due to their small size and high expression. Membrane proximal sites have been shown as attractive epitopes of CAR T cells. However, current CAR formats are not tailored toward nanobodies or targeting membrane distal epitopes. APPROACH AND RESULTS Using hYP7 Fv (membrane proximal) and HN3 VH nanobody (membrane distal) as GPC3 targeting elements, we sought to determine how hinges and transmembrane portions of varying structures and sizes affect CAR T-cell function. We generated multiple permutations of CAR T cells containing CD8, CD28, IgG4, and Fc domains. We show that engineered HN3 CAR T cells can be improved by 2 independent, synergistic changes in the hinge and transmembrane domains. The T cells expressing the HN3 CAR which contains the hinge region of IgG4 and the CD28 transmembrane domain (HN3-IgG4H-CD28TM) exhibited high cytotoxic activity and caused complete HCC tumor eradication in immunodeficient mice. HN3-IgG4H-CD28TM CAR T cells were enriched for cytotoxic-memory CD8+ T cells and NFAT signals, and reduced β catenin levels in HCC cells. CONCLUSION Our findings indicate that altering the hinge and transmembrane domains of a nanobody-based CAR targeting a distal GPC3 epitope, in contrast to a membrane proximal epitope, lead to robust T-cell signaling and induce swift and durable eradication of HCC tumors.
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Affiliation(s)
- Aarti Kolluri
- Antibody Therapy Section, Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
- Mayo Clinic Graduate School of Biomedical Sciences, Rochester, Minnesota, USA
| | - Dan Li
- Antibody Therapy Section, Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Nan Li
- Antibody Therapy Section, Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Zhijian Duan
- Antibody Engineering Program, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Lewis R. Roberts
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota, USA
| | - Mitchell Ho
- Antibody Therapy Section, Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
- Antibody Engineering Program, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
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12
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Singh AK, Singh SV, Kumar R, Kumar S, Senapati S, Pandey AK. Current therapeutic modalities and chemopreventive role of natural products in liver cancer: Progress and promise. World J Hepatol 2023; 15:1-18. [PMID: 36744169 PMCID: PMC9896505 DOI: 10.4254/wjh.v15.i1.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 07/02/2022] [Accepted: 12/21/2022] [Indexed: 01/16/2023] Open
Abstract
Liver cancer is a severe concern for public health officials since the clinical cases are increasing each year, with an estimated 5-year survival rate of 30%–35% after diagnosis. Hepatocellular carcinoma (HCC) constitutes a significant subtype of liver cancer (approximate75%) and is considered primary liver cancer. Treatment for liver cancer mainly depends on the stage of its progression, where surgery including, hepatectomy and liver transplantation, and ablation and radiotherapy are the prime choice. For advanced liver cancer, various drugs and immunotherapy are used as first-line treatment, whereas second-line treatment includes chemotherapeutic drugs from natural and synthetic origins. Sorafenib and lenvatinib are first-line therapies, while regorafenib and ramucirumab are second-line therapy. Various metabolic and signaling pathways such as Notch, JAK/ STAT, Hippo, TGF-β, and Wnt have played a critical role during HCC progression. Dysbiosis has also been implicated in liver cancer. Drug-induced toxicity is a key obstacle in the treatment of liver cancer, necessitating the development of effective and safe medications, with natural compounds such as resveratrol, curcumin, diallyl sulfide, and others emerging as promising anticancer agents. This review highlights the current status of liver cancer research, signaling pathways, therapeutic targets, current treatment strategies and the chemopreventive role of various natural products in managing liver cancer.
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Affiliation(s)
- Amit Kumar Singh
- Department of Botany, Government Naveen Girls College, Balod (Hemchand Yadav University), Durg, Chattisgarh, India
- Department of Biochemistry, University of Allahabad, Prayagraj 211002, Uttar Pradesh, India
| | - Shiv Vardan Singh
- Department of Biochemistry, University of Allahabad, Prayagraj 211002, Uttar Pradesh, India
| | - Ramesh Kumar
- Department of Biochemistry, University of Allahabad, Prayagraj 211002, Uttar Pradesh, India
- Department of Biochemistry, School of Basic and Applied Sciences, Central University of Punjab, Bathinda 151401, Punjab, India
| | - Shashank Kumar
- Department of Biochemistry, School of Basic and Applied Sciences, Central University of Punjab, Bathinda 151401, Punjab, India
| | - Sabyasachi Senapati
- Department of Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda 151401, Punjab, India
| | - Abhay K Pandey
- Department of Biochemistry, University of Allahabad, Prayagraj 211002, Uttar Pradesh, India
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13
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Wu T, Song Z, Huang H, Jakos T, Jiang H, Xie Y, Zhu J. Construction and evaluation of GPC3-targeted immunotoxins as a novel therapeutic modality for hepatocellular carcinoma. Int Immunopharmacol 2022; 113:109393. [DOI: 10.1016/j.intimp.2022.109393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 10/11/2022] [Accepted: 10/24/2022] [Indexed: 11/15/2022]
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14
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Ma J, Xu X, Fu C, Xia P, Tian M, Zheng L, Chen K, Liu X, Li Y, Yu L, Zhu Q, Yu Y, Fan R, Jiang H, Li Z, Yang C, Xu C, Long Y, Wang J, Li Z. CDH17 nanobodies facilitate rapid imaging of gastric cancer and efficient delivery of immunotoxin. Biomater Res 2022; 26:64. [PMID: 36435809 PMCID: PMC9701387 DOI: 10.1186/s40824-022-00312-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 10/27/2022] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND It is highly desirable to develop new therapeutic strategies for gastric cancer given the low survival rate despite improvement in the past decades. Cadherin 17 (CDH17) is a membrane protein highly expressed in cancers of digestive system. Nanobody represents a novel antibody format for cancer targeted imaging and drug delivery. Nanobody targeting CHD17 as an imaging probe and a delivery vehicle of toxin remains to be explored for its theragnostic potential in gastric cancer. METHODS Naïve nanobody phage library was screened against CDH17 Domain 1-3 and identified nanobodies were extensively characterized with various assays. Nanobodies labeled with imaging probe were tested in vitro and in vivo for gastric cancer detection. A CDH17 Nanobody fused with toxin PE38 was evaluated for gastric cancer inhibition in vitro and in vivo. RESULTS Two nanobodies (A1 and E8) against human CDH17 with high affinity and high specificity were successfully obtained. These nanobodies could specifically bind to CDH17 protein and CDH17-positive gastric cancer cells. E8 nanobody as a lead was extensively determined for tumor imaging and drug delivery. It could efficiently co-localize with CDH17-positive gastric cancer cells in zebrafish embryos and rapidly visualize the tumor mass in mice within 3 h when conjugated with imaging dyes. E8 nanobody fused with toxin PE38 showed excellent anti-tumor effect and remarkably improved the mice survival in cell-derived (CDX) and patient-derived xenograft (PDX) models. The immunotoxin also enhanced the anti-tumor effect of clinical drug 5-Fluorouracil. CONCLUSIONS The study presents a novel imaging and drug delivery strategy by targeting CDH17. CDH17 nanobody-based immunotoxin is potentially a promising therapeutic modality for clinical translation against gastric cancer.
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Affiliation(s)
- Jingbo Ma
- Department of Hyperbaric Medicine, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, P. R. China.,College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, P. R. China
| | - Xiaolong Xu
- Department of Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, P. R. China
| | - Chunjin Fu
- Department of Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, P. R. China
| | - Peng Xia
- Department of Hyperbaric Medicine, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, P. R. China.,Department of Hepatobiliary & Pancreatic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Ming Tian
- Department of Hyperbaric Medicine, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, P. R. China.,Department of Hepatobiliary & Pancreatic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Liuhai Zheng
- Department of Hyperbaric Medicine, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, P. R. China
| | - Kun Chen
- Department of Hyperbaric Medicine, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, P. R. China
| | - Xiaolian Liu
- Clinical Pharmacy Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, P. R. China
| | - Yilei Li
- Clinical Pharmacy Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, P. R. China
| | - Le Yu
- Clinical Pharmacy Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, P. R. China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, Guangdong, P.R. China
| | - Qinchang Zhu
- College of Pharmacy, Shenzhen Technology University, Shenzhen, 518118, P.R. China
| | - Yangyang Yu
- Health Science Center, Shenzhen University, Shenzhen, 518055, Guangdong, P. R. China
| | - Rongrong Fan
- Deapartment of Biosciences and Nutrition, Karolinska Institute, 14157, Stockholm, Sweden
| | - Haibo Jiang
- Department of Chemistry, The University of Hong Kong, Pok Fu Lam, Hong Kong, P. R. China
| | - Zhifen Li
- School of Chemistry and Chemical Engineering, Shanxi Datong University, Xing Yun Street, Pingcheng District, Datong, 037009, Shanxi, P. R. China
| | - Chuanbin Yang
- Department of Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, P. R. China
| | - Chengchao Xu
- Department of Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, P. R. China
| | - Ying Long
- Department of Hyperbaric Medicine, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, P. R. China.
| | - Jigang Wang
- Department of Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, P. R. China. .,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, Guangdong, P.R. China. .,Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, P. R. China.
| | - Zhijie Li
- Department of Hyperbaric Medicine, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, P. R. China. .,Department of Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, P. R. China.
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15
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A mutated glycosaminoglycan-binding domain functions as a novel probe to selectively target heparin-like epitopes on tumor cells. J Biol Chem 2022; 298:102609. [PMID: 36265583 PMCID: PMC9672413 DOI: 10.1016/j.jbc.2022.102609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 10/10/2022] [Accepted: 10/11/2022] [Indexed: 11/15/2022] Open
Abstract
The high heterogeneity and mutation rate of cancer cells often lead to the failure of targeted therapy, and therefore, new targets for multitarget therapy of tumors are urgently needed. Aberrantly expressed glycosaminoglycans (GAGs) have been shown to be involved in tumorigenesis and are promising new targets. Recently, the GAG-binding domain rVAR2 of the Plasmodium falciparum VAR2CSA protein was identified as a probe targeting cancer-associated chondroitin sulfate A-like epitopes. In this study, we found that rVAR2 could also bind to heparin (Hep) and chondroitin sulfate E. Therefore, we used rVAR2 as a model to establish a method based on random mutagenesis of the GAG-binding protein and phage display to identify and optimize probes targeting tumor GAGs. We identified a new probe, VAR2HP, which selectively recognized Hep by interacting with unique epitopes consisting of a decasaccharide structure that contains at least three HexA2S(1-4)GlcNS6S disaccharides. Moreover, we found that these Hep-like epitopes were overexpressed in various cancer cells. Most importantly, our in vivo experiments showed that VAR2HP had good biocompatibility and preferentially localizes to tumors, which indicates that VAR2HP has great application potential in tumor diagnosis and targeted therapy. In conclusion, this study provides a strategy for the discovery of novel tumor-associated GAG epitopes and their specific probes.
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16
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Huang L, He H, Wang K, Ma X, Chen X, Chen W, Wang X, Jiang X, Feng M. EGFRvⅢ-targeted immunotoxin combined with temozolomide and bispecific antibody for the eradication of established glioblastoma. Biomed Pharmacother 2022; 155:113659. [PMID: 36095959 DOI: 10.1016/j.biopha.2022.113659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 08/31/2022] [Accepted: 09/01/2022] [Indexed: 11/26/2022] Open
Abstract
EGFRvⅢ is an established target for immunotherapy of glioblastoma (GBM). Current study aims to explore the efficacy of EGFRvⅢ-targeted immunotoxin combined with temozolomide (TMZ) or T cell-engaged bispecific antibody for the treatment of GBM. We generated three rabbit monoclonal antibodies (R1, R2, and R6) that specifically bound to EGFRvⅢ, but not EGFR, with high affinity. Immunotoxins were made by fusing the scFv of these antibodies with engineered Pseudomonas exotoxin PE24. The in vitro cytotoxicity and specificity of the immunotoxins was rigorously validated by EGFRvⅢ and EGFR-expressed cell lines. The in vivo efficacy of immunotoxin monotherapy and in combination with TMZ or EGFRvⅢ-targeted bispecific antibody was evaluated in orthotopic and subcutaneous xenograft mouse models. EGFRvⅢ immunotoxins potently killed U87, U251 and GL261 cells that were forcefully expressing EGFRvⅢ, with IC50 values bellow 1.2 ng/ml. In a subcutaneous model, multiple intratumoral injections of immunotoxin at a dose of 2 mg/kg resulted in complete tumor regression in 3/5 of mice. In a C57BL/6 orthotopic glioblastoma model transplanted with GL261 cells that expressed a mouse version of EGFRvⅢ, two injections of 10 micrograms of immunotoxin in the lateral ventricles significantly improved the survival, with 2/5 mice being completely cured. Furthermore, in a subcutaneous xenograft model transplanted with EGFRvⅢ-expressed U87 cells, a single intratumoral injection of immuntoxin followed by i.v. injections of TMZ or EGFRvⅢ-targeted bispecific antibody achieved complete regression in mice. Taken together, EGFRvⅢ immunotoxin combined with TMZ or T cell-engaged bispecific antibody offers promise for curative treatment of GBM.
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Affiliation(s)
- Le Huang
- College of Life Science & Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Huixia He
- College of Life Science & Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Ke Wang
- College of Life Science & Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Xuqian Ma
- College of Life Science & Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Xin Chen
- College of Life Science & Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Wenxin Chen
- College of Life Science & Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Xuan Wang
- Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430070, China
| | - Xiaobing Jiang
- Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430070, China.
| | - Mingqian Feng
- College of Life Science & Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China; College of Biomedicine and Health, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
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17
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Chen Y, Qin Y, Wu Y, Wei H, Wei Y, Zhang Z, Duan T, Jiang H, Song B. Preoperative prediction of glypican-3 positive expression in solitary hepatocellular carcinoma on gadoxetate-disodium enhanced magnetic resonance imaging. Front Immunol 2022; 13:973153. [PMID: 36091074 PMCID: PMC9453305 DOI: 10.3389/fimmu.2022.973153] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Accepted: 07/26/2022] [Indexed: 11/13/2022] Open
Abstract
Purpose As a coreceptor in Wnt and HGF signaling, glypican-3 (GPC-3) promotes the progression of tumor and is associated with a poor prognosis in hepatocellular carcinoma (HCC). GPC-3 has evolved as a target molecule in various immunotherapies, including chimeric antigen receptor T cell. However, its evaluation still relies on invasive histopathologic examination. Therefore, we aimed to develop an easy-to-use and noninvasive risk score integrating preoperative gadoxetic acid–enhanced magnetic resonance imaging (EOB-MRI) and clinical indicators to predict positive GPC-3 expression in HCC. Methods and materials Consecutive patients with surgically-confirmed solitary HCC who underwent preoperative EOB-MRI between January 2016 and November 2021 were retrospectively included. EOB-MRI features were independently evaluated by two masked abdominal radiologists and the expression of GPC-3 was determined by two liver pathologists. On the training dataset, a predictive scoring system for GPC-3 was developed against pathology via logistical regression analysis. Model performances were characterized by computing areas under the receiver operating characteristic curve (AUCs). Results A total of 278 patients (training set, n=156; internal validation set, n=39; external validation set, n=83) with solitary HCC (208 [75%] with positive GPC-3 expression) were included. Serum alpha-fetoprotein >10 ng/ml (AFP, odds ratio [OR]=2.3, four points) and five EOB-MR imaging features, including tumor size >3.0cm (OR=0.5, -3 points), nonperipheral “washout” (OR=3.0, five points), infiltrative appearance (OR=9.3, 10 points), marked diffusion restriction (OR=3.3, five points), and iron sparing in solid mass (OR=0.2, -7 points) were significantly associated with positive GPC-3 expression. The optimal threshold of scoring system for predicting GPC-3 positive expression was 5.5 points, with AUC 0.726 and 0.681 on the internal and external validation sets, respectively. Conclusion Based on serum AFP and five EOB-MRI features, we developed an easy-to-use and noninvasive risk score which could accurately predict positive GPC-3 HCC, which may help identify potential responders for GPC-3-targeted immunotherapy.
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Affiliation(s)
- Yidi Chen
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Yun Qin
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Yuanan Wu
- Big Data Research Center, University of Electronic Science and Technology of China, Chengdu, China
| | - Hong Wei
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Yi Wei
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Zhen Zhang
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Ting Duan
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Hanyu Jiang
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Hanyu Jiang, ; Bin Song,
| | - Bin Song
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
- Department of Radiology, Sanya People’s Hospital, Sanya, China
- *Correspondence: Hanyu Jiang, ; Bin Song,
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18
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Caraballo Galva LD, Jiang X, Hussein MS, Zhang H, Mao R, Brody P, Peng Y, He AR, Kehinde-Ige M, Sadek R, Qiu X, Shi H, He Y. Novel low-avidity glypican-3 specific CARTs resist exhaustion and mediate durable antitumor effects against HCC. Hepatology 2022; 76:330-344. [PMID: 34897774 PMCID: PMC10568540 DOI: 10.1002/hep.32279] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 12/07/2021] [Accepted: 12/08/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND AIMS Chimeric antigen receptor engineered T cells (CARTs) for HCC and other solid tumors are not as effective as they are for blood cancers. CARTs may lose function inside tumors due to persistent antigen engagement. The aims of this study are to develop low-affinity monoclonal antibodies (mAbs) and low-avidity CARTs for HCC and to test the hypothesis that low-avidity CARTs can resist exhaustion and maintain functions in solid tumors, generating durable antitumor effects. METHODS AND RESULTS New human glypican-3 (hGPC3) mAbs were developed from immunized mice. We obtained three hGPC3-specific mAbs that stained HCC tumors, but not the adjacent normal liver tissues. One of them, 8F8, bound an epitope close to that of GC33, the frequently used high-affinity mAb, but with approximately 17-fold lower affinity. We then compared the 8F8 CARTs to GC33 CARTs for their in vitro function and in vivo antitumor effects. In vitro, low-avidity 8F8 CARTs killed both hGPC3high and hGPC3low HCC tumor cells to the same extent as high-avidity GC33 CARTs. 8F8 CARTs expanded and persisted to a greater extent than GC33 CARTs, resulting in durable responses against HCC xenografts. Importantly, compared with GC33 CARTs, there were 5-fold more of 8F8-BBz CARTs in the tumor mass for a longer period of time. Remarkably, the tumor-infiltrating 8F8 CARTs were less exhausted and apoptotic, and more functional than GC33 CARTs. CONCLUSION The low-avidity 8F8-BBz CART resists exhaustion and apoptosis inside tumor lesions, demonstrating a greater therapeutic potential than high-avidity CARTs.
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Affiliation(s)
| | - Xiaotao Jiang
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Mohamed S. Hussein
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Huajun Zhang
- Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Rui Mao
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Pierce Brody
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Yibing Peng
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Aiwu Ruth He
- Lombardi Cancer Center, Georgetown University, Washington, District of Columbia, USA
| | - Mercy Kehinde-Ige
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Ramses Sadek
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Xiangguo Qiu
- Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Huidong Shi
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Yukai He
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
- Department of Medicine, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
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19
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Kines RC, Schiller JT. Harnessing Human Papillomavirus’ Natural Tropism to Target Tumors. Viruses 2022; 14:v14081656. [PMID: 36016277 PMCID: PMC9413966 DOI: 10.3390/v14081656] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/25/2022] [Accepted: 07/26/2022] [Indexed: 02/06/2023] Open
Abstract
Human papillomaviruses (HPV) are small non-enveloped DNA tumor viruses established as the primary etiological agent for the development of cervical cancer. Decades of research have elucidated HPV’s primary attachment factor to be heparan sulfate proteoglycans (HSPG). Importantly, wounding and exposure of the epithelial basement membrane was found to be pivotal for efficient attachment and infection of HPV in vivo. Sulfation patterns on HSPG’s become modified at the site of wounds as they serve an important role promoting tissue healing, cell proliferation and neovascularization and it is these modifications recognized by HPV. Analogous HSPG modification patterns can be found on tumor cells as they too require the aforementioned processes to grow and metastasize. Although targeting tumor associated HSPG is not a novel concept, the use of HPV to target and treat tumors has only been realized in recent years. The work herein describes how decades of basic HPV research has culminated in the rational design of an HPV-based virus-like infrared light activated dye conjugate for the treatment of choroidal melanoma.
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Affiliation(s)
| | - John T. Schiller
- Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA;
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20
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A highly sensitive strategy for glypican-3 detection based on aptamer/gold carbon dots/magnetic graphene oxide nanosheets as fluorescent biosensor. Anal Bioanal Chem 2022; 414:6441-6453. [PMID: 35788872 DOI: 10.1007/s00216-022-04201-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 05/30/2022] [Accepted: 06/24/2022] [Indexed: 11/01/2022]
Abstract
Hepatocellular carcinoma (HCC) is the second leading cause of cancer-related deaths in China. Glypican-3 (GPC3) is a specific antigen related to HCC, which is widely used in clinical detection as a reliable marker of HCC. In this paper, a highly sensitive homogeneous apatasensor was designed for GPC3 detection based on fluorescence resonance energy transfer (FRET) where the GPC3 aptamer labelled gold carbon dots (AuCDs-GPC3Apt) are used as a donor and magnetic graphene oxide (Fe3O4/GO) nanosheets are used as an acceptor. A one-step hydrothermal method was used to synthesize AuCDs to provide sufficient fluorescence. The FRET phenomenon exists between AuCDs-GPC3Apt and Fe3O4/GO, which weakens the fluorescence intensity of the whole system. When the target GPC3 is added to the FRET system, the fluorescent AuCDs-GPC3Apt binds to the GPC3 and forms a folded structure, which leads to AuCDs-GPC3Apt separation from Fe3O4/GO nanosheets. The Fe3O4/GO is then magnetically separated so that the fluorescence of free labelled AuCDs-GPC3Apt is restored. Under the optimum conditions, the fluorescence recovery rate is linearly correlated with the concentration of GPC3 (5-100 ng·mL-1) and the detection limit is 3.01 ng·mL-1 (S/N = 3). This strategy shows recoveries from 98.76 to 101.29% in real human serum samples and provides an immediate and effective detection method for the quantification of GPC3 with great potential applications for early diagnosis of HCC. A sensitive homogeneous FRET-based apatasensor was designed for GPC3 detection where the AuCDs-GPC3Apt is a donor and Fe3O4/GO nanosheets are an acceptor. The GPC3 fluorescent aptasensor combines wider output range with low cost, high specificity, and good anti-interference.
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21
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Labadie KP, Hamlin DK, Kenoyer A, Daniel SK, Utria AF, Ludwig AD, Kenerson HL, Li L, Sham JG, Chen DL, Orozco JJ, Yeung RS, Orvig C, Li Y, Wilbur DS, Park JO. Glypican-3-Targeted 227Th α-Therapy Reduces Tumor Burden in an Orthotopic Xenograft Murine Model of Hepatocellular Carcinoma. J Nucl Med 2022; 63:1033-1038. [PMID: 34772791 PMCID: PMC9258570 DOI: 10.2967/jnumed.121.262562] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 10/08/2021] [Indexed: 01/03/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is a significant cause of morbidity and mortality worldwide, with limited therapeutic options for advanced disease. Targeted α-therapy is an emerging class of targeted cancer therapy in which α-particle-emitting radionuclides, such as 227Th, are delivered specifically to cancer tissue. Glypican-3 (GPC3) is a cell surface glycoprotein highly expressed on HCC. In this study, we describe the development and in vivo efficacy of a 227Th-labeled GPC3-targeting antibody conjugate (227Th-octapa-αGPC3) for treatment of HCC in an orthotopic murine model. Methods: The chelator p-SCN-Bn-H4octapa-NCS (octapa) was conjugated to a GPC3-targeting antibody (αGPC3) for subsequent 227Th radiolabeling (octapa-αGPC3). Conditions were varied to optimize radiolabeling of 227Th. In vitro stability was evaluated by measuring the percentage of protein-bound 227Th by γ-ray spectroscopy. An orthotopic athymic Nu/J murine model using HepG2-Red-FLuc cells was developed. Biodistribution and blood clearance of 227Th-octapa-αGPC3 were evaluated in tumor-bearing mice. The efficacy of 227Th-octapa-αGPC3 was assessed in tumor-bearing animals with serial measurement of serum α-fetoprotein at 23 d after injection. Results: Octapa-conjugated αGPC3 provided up to 70% 227Th labeling yield in 2 h at room temperature. In the presence of ascorbate, at least 97.8% of 227Th was bound to αGPC3-octapa after 14 d in phosphate-buffered saline. In HepG2-Red-FLuc tumor-bearing mice, highly specific GPC3 targeting was observed, with significant 227Th-octapa-αGPC3 accumulation in the tumor over time and minimal accumulation in normal tissue. Twenty-three days after treatment, a significant reduction in tumor burden was observed in mice receiving a 500 kBq/kg dose of 227Th-octapa-αGPC3 by tail-vein injection. No acute off-target toxicity was observed, and no animals died before termination of the study. Conclusion:227Th-octapa-αGPC3 was observed to be stable in vitro; maintain high specificity for GPC3, with favorable biodistribution in vivo; and result in significant antitumor activity without significant acute off-target toxicity in an orthotopic murine model of HCC.
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Affiliation(s)
- Kevin P. Labadie
- Department of Surgery, University of Washington, Seattle, Washington
| | - Donald K. Hamlin
- Department of Radiation Oncology, University of Washington, Seattle, Washington
| | - Aimee Kenoyer
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Sara K. Daniel
- Department of Surgery, University of Washington, Seattle, Washington
| | - Alan F. Utria
- Department of Surgery, University of Washington, Seattle, Washington
| | - Andrew D. Ludwig
- Department of Surgery, University of Washington, Seattle, Washington
| | - Heidi L. Kenerson
- Department of Surgery, University of Washington, Seattle, Washington
| | - Lily Li
- Life Sciences Division, TRIUMF, and Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jonathan G. Sham
- Department of Surgery, University of Washington, Seattle, Washington
| | - Delphine L. Chen
- Department of Radiology, University of Washington, Seattle, Washington
| | - Johnnie J. Orozco
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Raymond S. Yeung
- Department of Surgery, University of Washington, Seattle, Washington
| | - Chris Orvig
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada
| | - Yawen Li
- Department of Radiation Oncology, University of Washington, Seattle, Washington
| | - D. Scott Wilbur
- Department of Radiation Oncology, University of Washington, Seattle, Washington
| | - James O. Park
- Department of Surgery, University of Washington, Seattle, Washington
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22
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Pan J, Li N, Renn A, Zhu H, Chen L, Shen M, Hall MD, Qian M, Pastan I, Ho M. GPC1-Targeted Immunotoxins Inhibit Pancreatic Tumor Growth in Mice via Depletion of Short-lived GPC1 and Downregulation of Wnt Signaling. Mol Cancer Ther 2022; 21:960-973. [PMID: 35312769 PMCID: PMC9167738 DOI: 10.1158/1535-7163.mct-21-0778] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 02/01/2022] [Accepted: 03/08/2022] [Indexed: 11/16/2022]
Abstract
Glypican-1 (GPC1) is a cell surface proteoglycan that is upregulated in multiple types of human cancers including pancreatic cancer. Here, we investigated whether GPC1 could be a target of antibody-toxin fusion proteins (i.e., immunotoxins) for treating pancreatic cancer. We constructed a panel of GPC1-targeted immunotoxins derived from a functional domain of Pseudomonas exotoxin A. An albumin-binding domain was also introduced into the anti-GPC1 immunotoxin to improve serum half-life. Small-molecule screening was performed to identify irinotecan that shows synergistic efficacy with the immunotoxin. We showed that GPC1 was internalized upon antibody binding. Anti-GPC1 immunotoxins alone inhibited tumor growth in a pancreatic cancer xenograft model. The immunotoxin treatment reduced active β-catenin expression in tumor cells. Furthermore, immunotoxins containing an albumin-binding domain in combination with irinotecan caused pancreatic tumor regression. GPC1 expression was reduced by the immunotoxin treatment due to the degradation of the internalized GPC1 and its short cellular turnover rate. Our data indicate that the GPC1-targeted immunotoxin inhibits pancreatic tumor growth via degradation of internalized GPC1, downregulation of Wnt signaling, and inhibition of protein synthesis. The anti-GPC1 immunotoxin in combination with irinotecan thus provides a potential new treatment strategy for patients with pancreatic tumors.
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Affiliation(s)
- Jiajia Pan
- School of Life Sciences, East China Normal University, Shanghai, China
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
- NCI Antibody Engineering Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Nan Li
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Alex Renn
- NCATS Chemical Genomics Center, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Hu Zhu
- NCATS Chemical Genomics Center, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Lu Chen
- NCATS Chemical Genomics Center, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Min Shen
- NCATS Chemical Genomics Center, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Matthew D. Hall
- NCATS Chemical Genomics Center, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Min Qian
- School of Life Sciences, East China Normal University, Shanghai, China
| | - Ira Pastan
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Mitchell Ho
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
- NCI Antibody Engineering Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
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23
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Pang Z, Gu MD, Tang T. Pseudomonas aeruginosa in Cancer Therapy: Current Knowledge, Challenges and Future Perspectives. Front Oncol 2022; 12:891187. [PMID: 35574361 PMCID: PMC9095937 DOI: 10.3389/fonc.2022.891187] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 04/04/2022] [Indexed: 12/20/2022] Open
Abstract
Drug resistance, undesirable toxicity and lack of selectivity are the major challenges of conventional cancer therapies, which cause poor clinical outcomes and high mortality in many cancer patients. Development of alternative cancer therapeutics are highly required for the patients who are resistant to the conventional cancer therapies, including radiotherapy and chemotherapy. The success of a new cancer therapy depends on its high specificity to cancer cells and low toxicity to normal cells. Utilization of bacteria has emerged as a promising strategy for cancer treatment. Attenuated or genetically modified bacteria were used to inhibit tumor growth, modulate host immunity, or deliver anti-tumor agents. The bacteria-derived immunotoxins were capable of destructing tumors with high specificity. These bacteria-based strategies for cancer treatment have shown potent anti-tumor effects both in vivo and in vitro, and some of them have proceeded to clinical trials. Pseudomonas aeruginosa, a Gram-negative bacterial pathogen, is one of the common bacteria used in development of bacteria-based cancer therapy, particularly known for the Pseudomonas exotoxin A-based immunotoxins, which have shown remarkable anti-tumor efficacy and specificity. This review concisely summarizes the current knowledge regarding the utilization of P. aeruginosa in cancer treatment, and discusses the challenges and future perspectives of the P. aeruginosa-based therapeutic strategies.
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Affiliation(s)
- Zheng Pang
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Meng-Di Gu
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Tong Tang
- School of Art & Design, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
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24
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Zheng X, Liu X, Lei Y, Wang G, Liu M. Glypican-3: A Novel and Promising Target for the Treatment of Hepatocellular Carcinoma. Front Oncol 2022; 12:824208. [PMID: 35251989 PMCID: PMC8889910 DOI: 10.3389/fonc.2022.824208] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 01/18/2022] [Indexed: 02/05/2023] Open
Abstract
Glypican-3 (GPC3) is a membrane-associated proteoglycan that is specifically up-regulated in hepatocellular carcinoma (HCC) although rarely or not expressed in normal liver tissues, making it a perfect diagnostic and treatment target for HCC. Several GPC3-based clinical trials are ongoing and recently several innovative GPC3-targeted therapeutic methods have emerged with exciting results, including GPC3 vaccine, anti-GPC3 immunotoxin, combined therapy with immune checkpoint blockades (ICBs), and chimeric antigen receptor (CAR) T or NK cells. Here, we review the value of GPC3 in the diagnosis and prognosis of HCC, together with its signaling pathways, with a specific focus on GPC3-targeted treatments of HCC and some prospects for the future GPC3-based therapeutic strategies in HCC.
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Affiliation(s)
- Xiufeng Zheng
- Department of Abdominal Oncology, West China Hospital, Sichuan University, Chengdu, China
| | - Xun Liu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Yanna Lei
- Department of Abdominal Oncology, West China Hospital, Sichuan University, Chengdu, China
| | - Gang Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Ming Liu
- Department of Abdominal Oncology, West China Hospital, Sichuan University, Chengdu, China
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25
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Ammon A, Mellenthin L, Emmerich C, Naschberger E, Stürzl M, Mackensen A, Müller F. Reduced cytotoxicity by mutation of Lysine 590 of Pseudomonas exotoxin can be restored in an optimized, Lysine-free immunotoxin. IMMUNOTHERAPY ADVANCES 2022; 2:ltac007. [PMID: 35919491 PMCID: PMC9327129 DOI: 10.1093/immadv/ltac007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 02/17/2022] [Indexed: 12/02/2022] Open
Abstract
Immunotoxins, which are fusion proteins of an antibody fragment and a fragment of a bacterial or a plant toxin, induce apoptosis in target cells by inhibition of protein synthesis. ADP-ribosylating toxins often have few lysine residues in their catalytic domain. As they are the target for ubiquitination, the low number of lysines possibly prevents ubiquitin-dependent degradation of the toxin in the cytosol. To reduce this potential degradation, we aimed to generate a lysine-free (noK), Pseudomonas exotoxin (PE)-based immunotoxin. The new generation 24 kDa PE, which lacks all but the furin-cleavage site of domain II, was mutated at lysine 590 (K590) and at K606 in a CD22-targeting immunotoxin and activity was determined against various B cell malignancies in vitro and in vivo. On average, K590 mutated to arginine (R) reduced cytotoxicity by 1.3-fold and K606R enhanced cytotoxicity by 1.3-fold compared to wild type (wt). Mutating K590 to histidine or deleting K590 did not prevent this loss in cytotoxicity. Neither stability nor internalization rate of K590R could explain reduced cytotoxicity. These results highlight the relevance of lysine 590 for PE intoxication. In line with in vitro results, the K606R mutant was more than 1.8-fold more active than the other variants in vivo suggesting that this single mutation may be beneficial when targeting CD22-positive malignancies. Finally, reduced cytotoxicity by K590R was compensated for by K606R and the resulting lysine-free variant achieved wt-like activity in vitro and in vivo. Thus, PE24-noK may represent a promising candidate for down-stream applications that would interfere with lysines.
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Affiliation(s)
- Anna Ammon
- Department of Internal Medicine 5, Haematology and Oncology, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nuremberg (FAU), 91054 Erlangen, Germany
| | - Lisa Mellenthin
- Department of Internal Medicine 5, Haematology and Oncology, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nuremberg (FAU), 91054 Erlangen, Germany
| | - Charlotte Emmerich
- Department of Internal Medicine 5, Haematology and Oncology, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nuremberg (FAU), 91054 Erlangen, Germany
| | - Elisabeth Naschberger
- Division of Molecular and Experimental Surgery, Translational Research Center, Department of Surgery, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nuremberg (FAU), 91054 Erlangen, Germany
| | - Michael Stürzl
- Division of Molecular and Experimental Surgery, Translational Research Center, Department of Surgery, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nuremberg (FAU), 91054 Erlangen, Germany
| | - Andreas Mackensen
- Department of Internal Medicine 5, Haematology and Oncology, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nuremberg (FAU), 91054 Erlangen, Germany
| | - Fabian Müller
- Department of Internal Medicine 5, Haematology and Oncology, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nuremberg (FAU), 91054 Erlangen, Germany
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26
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Li D, Lin S, Hong J, Ho M. Immunotherapy for hepatobiliary cancers: Emerging targets and translational advances. Adv Cancer Res 2022; 156:415-449. [DOI: 10.1016/bs.acr.2022.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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Abstract
The discovery of single-domain antibodies has opened new avenues for drug development. Single-domain antibodies, also known as nanobodies, can access buried epitopes that are inaccessible to conventional antibodies. These antigen-binding domains have a high level of solubility and stability, which makes them well suited for therapeutic development. This chapter will discuss the design, production, and testing of single-domain antibody-based recombinant immunotoxins. Recombinant immunotoxins are chimeric proteins that combine the specificity of an antibody with the ribosomal-inhibitory domain of a bacterial toxin. Immunotoxins using the Pseudomonas exotoxin domain have been well studied in clinical trials. Recently, an anti-CD22 immunotoxin was granted marketing approval for use in patients with relapsed or refractory hairy cell leukemia. This supports the idea that treatment with recombinant immunotoxins can be explored for cancers that have not responded to standard therapies.
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Affiliation(s)
- Bryan D Fleming
- Laboratory of Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Mitchell Ho
- Laboratory of Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
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28
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Colin-Pierre C, Berthélémy N, Belloy N, Danoux L, Bardey V, Rivet R, Mine S, Jeanmaire C, Maquart FX, Ramont L, Brézillon S. The Glypican-1/HGF/C-Met and Glypican-1/VEGF/VEGFR2 Ternary Complexes Regulate Hair Follicle Angiogenesis. Front Cell Dev Biol 2021; 9:781172. [PMID: 34957110 PMCID: PMC8692797 DOI: 10.3389/fcell.2021.781172] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 11/16/2021] [Indexed: 12/30/2022] Open
Abstract
The hair renewal involves changes in the morphology of the hair follicle and its micro-vascularization. In alopecia, the hair cycle is accelerated, resulting in the formation of thinner and shorter hair. In addition, alopecia is associated with a decrease in the micro-vascularization of the hair follicles. In this study, the role of glypicans (GPCs) was analyzed in the regulation of the angiogenesis of human dermal microvascular endothelial cells (HDMEC). The analysis of glypican gene expression showed that GPC1 is the major glypican expressed by human keratinocytes of outer root sheath (KORS), human hair follicle dermal papilla cells (HHFDPC) and HDMEC. KORS were demonstrated to secrete VEGF and HGF. The HDMEC pseudotube formation was induced by KORS conditioned media (KORSCM). It was totally abrogated after GPC1 siRNA transfection of HDMEC. Moreover, when cleaved by phospholipase C (PLC), GPC1 promotes the proliferation of HDMEC. Finally, GPC1 was shown to interact directly with VEGFR2 or c-Met to regulate angiogenesis induced by the activation of these receptors. Altogether, these results showed that GPC1 is a key regulator of microvascular endothelial cell angiogenesis induced by VEGF and HGF secreted by KORS. Thus, GPC1 might constitute an interesting target to tackle alopecia in dermatology research.
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Affiliation(s)
- Charlie Colin-Pierre
- Université de Reims Champagne-Ardenne, SFR CAP-Santé (FED 4231), Laboratoire de Biochimie Médicale et Biologie Moléculaire, Reims, France.,CNRS UMR 7369, Matrice Extracellulaire et Dynamique Cellulaire-MEDyC, Reims, France.,BASF Beauty Care Solutions France SAS, Pulnoy, France
| | | | - Nicolas Belloy
- Université de Reims Champagne-Ardenne, SFR CAP-Santé (FED 4231), Laboratoire de Biochimie Médicale et Biologie Moléculaire, Reims, France.,CNRS UMR 7369, Matrice Extracellulaire et Dynamique Cellulaire-MEDyC, Reims, France.,P3M, Multiscale Molecular Modeling Platform, Université de Reims Champagne-Ardenne, Reims, France
| | - Louis Danoux
- BASF Beauty Care Solutions France SAS, Pulnoy, France
| | | | - Romain Rivet
- Université de Reims Champagne-Ardenne, SFR CAP-Santé (FED 4231), Laboratoire de Biochimie Médicale et Biologie Moléculaire, Reims, France.,CNRS UMR 7369, Matrice Extracellulaire et Dynamique Cellulaire-MEDyC, Reims, France
| | - Solène Mine
- BASF Beauty Care Solutions France SAS, Pulnoy, France
| | | | - François-Xavier Maquart
- Université de Reims Champagne-Ardenne, SFR CAP-Santé (FED 4231), Laboratoire de Biochimie Médicale et Biologie Moléculaire, Reims, France
| | - Laurent Ramont
- Université de Reims Champagne-Ardenne, SFR CAP-Santé (FED 4231), Laboratoire de Biochimie Médicale et Biologie Moléculaire, Reims, France.,CNRS UMR 7369, Matrice Extracellulaire et Dynamique Cellulaire-MEDyC, Reims, France.,CHU de Reims, Service Biochimie-Pharmacologie-Toxicologie, Reims, France
| | - Stéphane Brézillon
- Université de Reims Champagne-Ardenne, SFR CAP-Santé (FED 4231), Laboratoire de Biochimie Médicale et Biologie Moléculaire, Reims, France.,CNRS UMR 7369, Matrice Extracellulaire et Dynamique Cellulaire-MEDyC, Reims, France
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Kreitman RJ, Pastan I. Immunotoxins: From Design to Clinical Application. Biomolecules 2021; 11:biom11111696. [PMID: 34827694 PMCID: PMC8615697 DOI: 10.3390/biom11111696] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 11/01/2021] [Indexed: 12/19/2022] Open
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Patel DK, Menon DV, Patel DH, Dave G. Linkers: A synergistic way for the synthesis of chimeric proteins. Protein Expr Purif 2021; 191:106012. [PMID: 34767950 DOI: 10.1016/j.pep.2021.106012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 10/30/2021] [Accepted: 11/03/2021] [Indexed: 11/15/2022]
Abstract
In the cell, the protein domains are attached with the short oligopeptide, commonly known as linker peptide. Besides bridging, the linker assists in the domain-domain interaction and protein folding into the peculiar conformations. Linkers allow or control the movement of protein domains in the dynamic cellular environment. The recent advances in the recombinant DNA technology enable the construction of multiple gene constructs in an open reading frame. The express sequences can work in a cascade to cater for myriad functions. This trend has given momentum to incorporating bridge sequences (linker) that essentially separates the independent domains. According to the cellular need, the bridging partner can be spaced at a secure gap or requires attaching or interacting physically. The flexible or rigid linker can help to achieve such conformations in chimeric fusion proteins. The linker can improve solubility, proteolytic resistance and stability of such fusion proteins. Recently, linker aided protein switches and antibody-drug conjugates are gaining the attention of researchers worldwide. Here, we thoroughly reviewed the types of the linker, strategies for linker engineering and the composition of a linker.
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Affiliation(s)
- Dharti Keyur Patel
- PD Patel Institute of Applied Sciences, CHARUSAT, Changa, 388421, Gujarat, India
| | - Dhanya V Menon
- Tata Institute of Fundamental Research, NCBS, Bangalore, 560065, India
| | - Darshan H Patel
- Charotar Institute of Paramedical Sciences, CHARUSAT, Changa, 388421, Gujarat, India
| | - Gayatri Dave
- PD Patel Institute of Applied Sciences, CHARUSAT, Changa, 388421, Gujarat, India.
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Pan J, Ho M. Role of glypican-1 in regulating multiple cellular signaling pathways. Am J Physiol Cell Physiol 2021; 321:C846-C858. [PMID: 34550795 DOI: 10.1152/ajpcell.00290.2021] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Glypican-1 (GPC1) is one of the six glypican family members in humans. It is composed of a core protein with three heparan sulfate chains and attached to the cell membrane by a glycosyl-phosphatidylinositol anchor. GPC1 modulates various signaling pathways including fibroblast growth factors (FGF), vascular endothelial growth factor-A (VEGF-A), transforming growth factor-β (TGF-β), Wnt, Hedgehog (Hh), and bone morphogenic protein (BMP) through specific interactions with pathway ligands and receptors. The impact of these interactions on signaling pathways, activating or inhibitory, is dependent upon specific GPC1 domain interaction with pathway components, as well as cell surface context. In this review, we summarize the current understanding of the structure of GPC1, as well as its role in regulating multiple signaling pathways. We focus on the functions of GPC1 in cancer cells and how new insights into these signaling processes can inform its translational potential as a therapeutic target in cancer.
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Affiliation(s)
- Jiajia Pan
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.,School of Life Sciences, East China Normal University, Shanghai, China
| | - Mitchell Ho
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
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Chen X, Chen Y, Liang R, Xiang L, Li J, Zhu Y, He H, Huang L, Zuo D, Li W, Liang X, Dong S, Hu S, Ho M, Feng M. Combination Therapy of Hepatocellular Carcinoma by GPC3-Targeted Bispecific Antibody and Irinotecan is Potent in Suppressing Tumor Growth in Mice. Mol Cancer Ther 2021; 21:149-158. [PMID: 34725191 DOI: 10.1158/1535-7163.mct-20-1025] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 04/26/2021] [Accepted: 10/21/2021] [Indexed: 12/24/2022]
Abstract
Hepatocellular carcinoma (HCC) is a world leading cause of cancer-related mortality, and currently no curative treatment for advanced HCC is available. Glypican-3 (GPC3) is an attractive target for HCC immunotherapy. This study explored the efficacy of six GPC3-targeted bispecific antibodies, alone or in combination with chemotherapeutic drug Irinotecan, for the treatment of HCC. The bispecific antibodies were constructed using three different structures, knob-into-hole (KH), scFv-scFv-hFc, and scFv-hFc-scFv, where CD3-targeting mAb OKT3 (scFv) was paired with two representative GPC3 mAbs hYP7 (scFv) and HN3 (VH only) that target different epitopes. The In vitro cell killing assay revealed that all bispecific antibodies efficiently killed GPC3 positive cancer cells, with hYP7-KH, hYP7-OKT3-hFc, and HN3-KH being most potent. In vivo xenograft mouse studies demonstrated that all bispecific antibodies suppressed tumor growth similarly, with hYP7-OKT3-hFc performing slightly better. Combination of hYP7-OKT3-hFc with Irinotecan dramatically improved the efficacy and arrested tumor growth of HepG2, Hep3B, and G1 in xenograft mice. Our results demonstrated that the cell surface proximal bispecific antibody hYP7-OKT3-hFc was superior in terms of potency and the GPC3-targeted bispecific antibody combined with Irinotecan was much potent to control HCC growth.
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Affiliation(s)
- Xin Chen
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Yanmin Chen
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Rong Liang
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Lanxin Xiang
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Jingwen Li
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Yuankui Zhu
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Huixia He
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Le Huang
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Dianbao Zuo
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Weihang Li
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, United Kingdom
| | - Xinjun Liang
- Department of Internal Medicine-Oncology, Hubei Cancer Hospital, Wuhan, Hubei, China
| | - Shuang Dong
- Department of Internal Medicine-Oncology, Hubei Cancer Hospital, Wuhan, Hubei, China
| | - Sheng Hu
- Department of Internal Medicine-Oncology, Hubei Cancer Hospital, Wuhan, Hubei, China
| | - Mitchell Ho
- Laboratory of Molecular Biology, Center for Cancer Research, NCI, NIH, Bethesda, Maryland.
| | - Mingqian Feng
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China. .,College of Biomedicine and Health, Huazhong Agricultural University, Wuhan, Hubei, China
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DT389-YP7, a Recombinant Immunotoxin against Glypican-3 That Inhibits Hepatocellular Cancer Cells: An In Vitro Study. Toxins (Basel) 2021; 13:toxins13110749. [PMID: 34822533 PMCID: PMC8617615 DOI: 10.3390/toxins13110749] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/09/2021] [Accepted: 10/13/2021] [Indexed: 01/02/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the high-metastatic types of cancer, and metastasis occurs in one-third of patients with HCC. To maintain the effectiveness of drug compounds on cancer cells and minimize their side effects on normal cells, it is important to use new approaches for overcoming malignancies. Immunotoxins (ITs), an example of such a new approach, are protein-structured compounds consisting of toxic and binding moieties which can specifically bind to cancer cells and efficiently induce cell death. Here, we design and scrutinize a novel immunotoxin against an oncofetal marker on HCC cells. We applied a truncated diphtheria toxin (DT389) without binding domain as a toxin moiety to be fused with a humanized YP7 scFv against a high-expressed Glypican-3 (GPC3) antigen on the surface of HCC cells. Cytotoxic effects of this IT were investigated on HepG2 (GPC3+) and SkBr3 (GPC3−) cell lines as positive- and negative-expressed GPC3 antigens. The dissociation constant (Kd) was calculated 11.39 nM and 18.02 nM for IT and YP7 scfv, respectively, whereas only IT showed toxic effects on the HepG2 cell line, and decreased cell viability (IC50 = 848.2 ng/mL). Changing morphology (up to 85%), cell cycle arrest at G2 phase (up to 13%), increasing intracellular reactive oxygen species (ROSs) (up to 50%), inducing apoptosis (up to 38% for apoptosis and 23% for necrosis), and an almost complete inhibition of cell movement were other effects of immunotoxin treatment on HepG2 cells, not on SkBr3 cell line. These promising results reveal that this new recombinant immunotoxin can be considered as an option as an HCC inhibitor. However, more extensive studies are needed to accomplish this concept.
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Immunotoxins Immunotherapy against Hepatocellular Carcinoma: A Promising Prospect. Toxins (Basel) 2021; 13:toxins13100719. [PMID: 34679012 PMCID: PMC8538445 DOI: 10.3390/toxins13100719] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 10/02/2021] [Accepted: 10/03/2021] [Indexed: 12/11/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most common cancers in the world. Therefore, fighting against such cancer is reasonable. Chemotherapy drugs are sometimes inefficient and often accompanied by undesirable side effects for patients. On the other hand, the emergence of chemoresistant HCC emphasizes the need for a new high-efficiency treatment strategy. Immunotoxins are armed and rigorous targeting agents that can purposefully kill cancer cells. Unlike traditional chemotherapeutics, immunotoxins because of targeted toxicity, insignificant cross-resistance, easy production, and other favorable properties can be ideal candidates against HCC. In this review, the characteristics of proper HCC-specific biomarkers for immunotoxin targeting were dissected. After that, the first to last immunotoxins developed for the treatment of liver cancer were discussed. So, by reviewing the strengths and weaknesses of these immunotoxins, we attempted to provide keynotes for designing an optimal immunotoxin against HCC.
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Raman S, Buongervino SN, Lane MV, Zhelev DV, Zhu Z, Cui H, Martinez B, Martinez D, Wang Y, Upton K, Patel K, Rathi KS, Navia CT, Harmon DB, Li Y, Pawel B, Dimitrov DS, Maris JM, Julien JP, Bosse KR. A GPC2 antibody-drug conjugate is efficacious against neuroblastoma and small-cell lung cancer via binding a conformational epitope. Cell Rep Med 2021; 2:100344. [PMID: 34337560 PMCID: PMC8324494 DOI: 10.1016/j.xcrm.2021.100344] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 01/19/2021] [Accepted: 06/15/2021] [Indexed: 01/17/2023]
Abstract
Glypican 2 (GPC2) is a MYCN-regulated, differentially expressed cell-surface oncoprotein and target for immune-based therapies in neuroblastoma. Here, we build on GPC2's immunotherapeutic attributes by finding that it is also a highly expressed, MYCN-driven oncoprotein on small-cell lung cancers (SCLCs), with significantly enriched expression in both the SCLC and neuroblastoma stem cell compartment.By solving the crystal structure of the D3-GPC2-Fab/GPC2 complex at 3.3 Å resolution, we further illustrate that the GPC2-directed antibody-drug conjugate (ADC; D3-GPC2-PBD), that links a human GPC2 antibody (D3) to DNA-damaging pyrrolobenzodiazepine (PBD) dimers, binds a tumor-specific, conformation-dependent epitope of the core GPC2 extracellular domain. We then show that this ADC induces durable neuroblastoma and SCLC tumor regression via induction of DNA damage, apoptosis, and bystander cell killing, notably with no signs of ADC-induced in vivo toxicity. These studies provide preclinical data to support the clinical translation of ADCs targeting GPC2.
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Affiliation(s)
- Swetha Raman
- Program in Molecular Medicine, Hospital for Sick Children Research Institute, Toronto, ON M5G 0A4, Canada
| | - Samantha N. Buongervino
- Division of Oncology and Center for Childhood Cancer Research, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Maria V. Lane
- Division of Oncology and Center for Childhood Cancer Research, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Doncho V. Zhelev
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Zhongyu Zhu
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, MD 21701, USA
| | - Hong Cui
- Program in Molecular Medicine, Hospital for Sick Children Research Institute, Toronto, ON M5G 0A4, Canada
| | - Benjamin Martinez
- Program in Molecular Medicine, Hospital for Sick Children Research Institute, Toronto, ON M5G 0A4, Canada
| | - Daniel Martinez
- Department of Pathology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Yanping Wang
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, MD 21701, USA
| | - Kristen Upton
- Division of Oncology and Center for Childhood Cancer Research, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Khushbu Patel
- Division of Oncology and Center for Childhood Cancer Research, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Komal S. Rathi
- Department of Biomedical and Health Informatics and Center for Data-Driven Discovery in Biomedicine, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | | | | | - Yimei Li
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Bruce Pawel
- Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Los Angeles, CA 90027, USA
- Keck School of Medicine, University of Southern California, Los Angeles, CA 90027, USA
| | - Dimiter S. Dimitrov
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - John M. Maris
- Division of Oncology and Center for Childhood Cancer Research, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jean-Philippe Julien
- Program in Molecular Medicine, Hospital for Sick Children Research Institute, Toronto, ON M5G 0A4, Canada
- Departments of Biochemistry and Immunology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Kristopher R. Bosse
- Division of Oncology and Center for Childhood Cancer Research, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
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Advances in immunotherapeutic targets for childhood cancers: A focus on glypican-2 and B7-H3. Pharmacol Ther 2021; 223:107892. [PMID: 33992682 DOI: 10.1016/j.pharmthera.2021.107892] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 05/05/2021] [Accepted: 05/10/2021] [Indexed: 12/16/2022]
Abstract
Cancer immunotherapies have revolutionized how we can treat adult malignancies and are being translated to pediatric oncology. Chimeric antigen receptor T-cell therapy and bispecific antibodies targeting CD19 have shown success for the treatment of pediatric patients with B-cell acute lymphoblastic leukemia. Anti-GD2 monoclonal antibody has demonstrated efficacy in neuroblastoma. In this review, we summarize the immunotherapeutic agents that have been approved for treating childhood cancers and provide an updated review of molecules expressed by pediatric cancers that are under study or are emerging candidates for future immunotherapies. Advances in our knowledge of tumor immunology and in genome profiling of cancers has led to the identification of new tumor-specific/associated antigens. While cell surface antigens are normally targeted in a major histocompatibility complex (MHC)-independent manner using antibody-based therapies, intracellular antigens are normally targeted with MHC-dependent T cell therapies. Glypican 2 (GPC2) and B7-H3 (CD276) are two cell surface antigens that are expressed by a variety of pediatric tumors such as neuroblastoma and potentially can have a positive impact on the treatment of pediatric cancers in the clinic.
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de Moraes GFA, Listik E, Justo GZ, Vicente CM, Toma L. The Glypican proteoglycans show intrinsic interactions with Wnt-3a in human prostate cancer cells that are not always associated with cascade activation. BMC Mol Cell Biol 2021; 22:26. [PMID: 33947326 PMCID: PMC8097805 DOI: 10.1186/s12860-021-00361-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 04/01/2021] [Indexed: 01/12/2023] Open
Abstract
Background Prostate cancer occurs through multiple steps until advanced metastasis. Signaling pathways studies can result in the identification of targets to interrupt cancer progression. Glypicans are cell surface proteoglycans linked to the membrane through glycosylphosphatidylinositol. Their interaction with specific ligands has been reported to trigger diverse signaling, including Wnt. In this study, prostate cancer cell lines PC-3, DU-145, and LNCaP were compared to normal prostate RWPE-1 cell line to investigate glypican family members and the activation of the Wnt signaling pathway. Results Glypican-1 (GPC1) was highly expressed in all the examined cell lines, except for LNCaP, which expressed glypican-5 (GPC5). The subcellular localization of GPC1 was detected on the cell surface of RWPE-1, PC-3, and DU-145 cell lines, while GPC5 suggested cytoplasm localization in LNCaP cells. Besides glypican, flow cytometry analysis in these prostate cell lines confirmed the expression of Wnt-3a and unphosphorylated β-catenin. The co-immunoprecipitation assay revealed increased levels of binding between Wnt-3a and glypicans in cancer cells, suggesting a relationship between these proteoglycans in this pathway. A marked increase in nuclear β-catenin was observed in tumor cells. However, only PC-3 cells demonstrated activation of canonical Wnt signaling, according to the TOPFLASH assay. Conclusions GPC1 was the majorly expressed gene in all the studied cell lines, except for LNCaP, which expressed GPC5. We assessed by co-immunoprecipitation that these GPCs could interact with Wnt-3a. However, even though nuclear β-catenin was found increased in the prostate cancer cells (i.e., PC-3, DU-145 and LNCaP), activation of Wnt pathway was only found in PC-3 cells. In these PC-3 cells, GPC1 and Wnt-3a revealed high levels of colocalization, as assessed by confocal microscopy studies. This suggests a localization at the cellular surface, where Frizzled receptor is required for downstream activation. The interaction of Wnt-3a with GPCs in DU-145 and LNCaP cells, which occurs in absence of Wnt signaling activation, requires further studies. Once non-TCF-LEF proteins can also bind β-catenin, another signaling pathway may be involved in these cells with regulatory function. Supplementary Information The online version contains supplementary material available at 10.1186/s12860-021-00361-x.
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Affiliation(s)
- Gabrielle Ferrante Alves de Moraes
- Departamento de Bioquímica (Campus São Paulo), Universidade Federal de São Paulo, Rua Três de Maio, P.O. Box: 04044-020, São Paulo, SP, 100, Brazil
| | - Eduardo Listik
- Departamento de Bioquímica (Campus São Paulo), Universidade Federal de São Paulo, Rua Três de Maio, P.O. Box: 04044-020, São Paulo, SP, 100, Brazil
| | - Giselle Zenker Justo
- Departamento de Bioquímica (Campus São Paulo), Universidade Federal de São Paulo, Rua Três de Maio, P.O. Box: 04044-020, São Paulo, SP, 100, Brazil.,Departamento de Ciências Biológicas (Campus Diadema), Universidade Federal de São Paulo, Rua Três de Maio, P.O. Box: 04044-020, São Paulo, SP, 100, Brazil
| | - Carolina Meloni Vicente
- Departamento de Bioquímica (Campus São Paulo), Universidade Federal de São Paulo, Rua Três de Maio, P.O. Box: 04044-020, São Paulo, SP, 100, Brazil
| | - Leny Toma
- Departamento de Bioquímica (Campus São Paulo), Universidade Federal de São Paulo, Rua Três de Maio, P.O. Box: 04044-020, São Paulo, SP, 100, Brazil.
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George R, Gsottberger F, Ammon A, Wendland K, Mellenthin L, Mackensen A, Müller F. Triton X-114 and Amine-Based Wash Strategy Reduces Lipopolysaccharides to FDA Limit and Achieves Purer, More Potent Recombinant Immunotoxin. Bioconjug Chem 2021; 32:713-720. [PMID: 33793193 DOI: 10.1021/acs.bioconjchem.1c00013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Many proteins are still routinely expressed prokaryotically in Escherichia coli, some because they are toxic to eukaryotes. Immunotoxins, which are fusion proteins of a targeting moiety and a truncated Pseudomonas exotoxin A, kill target cells by arresting protein synthesis. Thus, immunotoxins must be expressed in E. coli. Proteins expressed in E. coli are contaminated by endotoxin (also called lipopolysaccharides (LPS)). LPS binds to toll-like receptors, inducing up to life-threatening systemic inflammation in mammals. Therefore, accepted LPS limits for therapeutics as well as for substances used in immunological studies in animals are very low. Here, we report the use of Triton X-114 and polyamine-based wash strategies, which only in combination achieved LPS-contamination well below FDA limits. Resulting LPS-reduced immunotoxins were purer and up to 2.4-fold more active in vitro. Increased activity was associated with a 2.4-fold increase in affinity on cell surface expressed target antigen. The combination method maintained enzymatic function, protein stability, and in vivo efficacy and was effective for Fab as well as dsFv formats. With some modifications, the principle of this novel combination may be applied to any chromatography-based purification process.
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Affiliation(s)
- Rebekka George
- Department of Internal Medicine 5, Haematology and Oncology, University Hospital of Erlangen, 91054 Erlangen, Germany.,Friedrich-Alexander-University of Erlangen-Nurnberg (FAU), 91054 Erlangen, Germany
| | - Franziska Gsottberger
- Department of Internal Medicine 5, Haematology and Oncology, University Hospital of Erlangen, 91054 Erlangen, Germany
| | - Anna Ammon
- Department of Internal Medicine 5, Haematology and Oncology, University Hospital of Erlangen, 91054 Erlangen, Germany
| | - Kerstin Wendland
- Department of Internal Medicine 5, Haematology and Oncology, University Hospital of Erlangen, 91054 Erlangen, Germany
| | - Lisa Mellenthin
- Department of Internal Medicine 5, Haematology and Oncology, University Hospital of Erlangen, 91054 Erlangen, Germany
| | - Andreas Mackensen
- Department of Internal Medicine 5, Haematology and Oncology, University Hospital of Erlangen, 91054 Erlangen, Germany
| | - Fabian Müller
- Department of Internal Medicine 5, Haematology and Oncology, University Hospital of Erlangen, 91054 Erlangen, Germany
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Sun L, Gao F, Gao Z, Ao L, Li N, Ma S, Jia M, Li N, Lu P, Sun B, Ho M, Jia S, Ding T, Gao W. Shed antigen-induced blocking effect on CAR-T cells targeting Glypican-3 in Hepatocellular Carcinoma. J Immunother Cancer 2021; 9:e001875. [PMID: 33833049 PMCID: PMC8039282 DOI: 10.1136/jitc-2020-001875] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/09/2021] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Glypican-3 (GPC3), a cell surface glycoprotein that is pathologically highly expressed in hepatocellular carcinoma (HCC), is an attractive target for immunotherapies, including chimeric antigen receptor (CAR) T cells. The serum GPC3 is frequently elevated in HCC patients due to the shedding effect of cell surface GPC3. The shed GPC3 (sGPC3) is reported to block the function of cell-surface GPC3 as a negative regulator. Therefore, it would be worth investigating the potential influence of antigen shedding in anti-GPC3 CAR-T therapy for HCC. METHODS In this study, we constructed two types of CAR-T cells targeting distinct epitopes of GPC3 to examine how sGPC3 influences the activation and cytotoxicity of CAR-T cells in vitro and in vivo by introducing sGPC3 positive patient serum or recombinant sGPC3 proteins into HCC cells or by using sGPC3-overexpressing HCC cell lines. RESULTS Both humanized YP7 CAR-T cells and 32A9 CAR-T cells showed GPC3-specific antitumor functions in vitro and in vivo. The existence of sGPC3 significantly inhibited the release of cytokines and the cytotoxicity of anti-GPC3 CAR-T cells in vitro. In animal models, mice carrying Hep3B xenograft tumors expressing sGPC3 exhibited a worse response to the treatment with CAR-T cells under both a low and high tumor burden. sGPC3 bound to CAR-T cells but failed to induce the effective activation of CAR-T cells. Therefore, sGPC3 acted as dominant negative regulators when competed with cell surface GPC3 to bind anti-GPC3 CAR-T cells, leading to an inhibitory effect on CAR-T cells in HCC. CONCLUSIONS We provide a proof-of-concept study demonstrating that GPC3 shedding might cause worse response to CAR-T cell treatment by competing with cell surface GPC3 for CAR-T cell binding, which revealed a new mechanism of tumor immune escape in HCC, providing a novel biomarker for patient enrolment in future clinical trials and/or treatments with GPC3-targeted CAR-T cells.
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MESH Headings
- Animals
- Binding, Competitive
- Biomarkers, Tumor/antagonists & inhibitors
- Biomarkers, Tumor/blood
- Biomarkers, Tumor/immunology
- Carcinoma, Hepatocellular/blood
- Carcinoma, Hepatocellular/immunology
- Carcinoma, Hepatocellular/pathology
- Carcinoma, Hepatocellular/therapy
- Cell Line, Tumor
- Cytokines/metabolism
- Cytotoxicity, Immunologic
- Female
- Glypicans/antagonists & inhibitors
- Glypicans/blood
- Glypicans/immunology
- Immunotherapy, Adoptive
- Liver Neoplasms/blood
- Liver Neoplasms/immunology
- Liver Neoplasms/pathology
- Liver Neoplasms/therapy
- Lymphocyte Activation
- Mice, Inbred BALB C
- Mice, Inbred NOD
- Mice, Nude
- Proof of Concept Study
- Protein Binding
- Receptors, Chimeric Antigen/genetics
- Receptors, Chimeric Antigen/immunology
- Receptors, Chimeric Antigen/metabolism
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
- T-Lymphocytes/transplantation
- Tumor Burden
- Xenograft Model Antitumor Assays
- Mice
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Affiliation(s)
- Luan Sun
- Key Laboratory of Human Functional Genomics of Jiangsu Province, National Health Commission Key Laboratory of Antibody Techniques, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Fang Gao
- Key Laboratory of Human Functional Genomics of Jiangsu Province, National Health Commission Key Laboratory of Antibody Techniques, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Zhanhui Gao
- Key Laboratory of Human Functional Genomics of Jiangsu Province, National Health Commission Key Laboratory of Antibody Techniques, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu, China
- Department of Nephrology, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Lei Ao
- Key Laboratory of Human Functional Genomics of Jiangsu Province, National Health Commission Key Laboratory of Antibody Techniques, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Na Li
- Key Laboratory of Human Functional Genomics of Jiangsu Province, National Health Commission Key Laboratory of Antibody Techniques, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Sujuan Ma
- Key Laboratory of Human Functional Genomics of Jiangsu Province, National Health Commission Key Laboratory of Antibody Techniques, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Meng Jia
- School of Chemistry and Molecular Biosciences, The University of Queensland - Saint Lucia Campus, Saint Lucia, Queensland, Australia
- Department of Biotherapy, Nanjing Jinling Hospital, Nanjing, Jiangsu, China
| | - Nan Li
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Peihua Lu
- Department of Medical Oncology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu, China
| | - Beicheng Sun
- Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Mitchell Ho
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Shaochang Jia
- Department of Biotherapy, Nanjing Jinling Hospital, Nanjing, Jiangsu, China
| | - Tong Ding
- Key Laboratory of Human Functional Genomics of Jiangsu Province, National Health Commission Key Laboratory of Antibody Techniques, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Wei Gao
- Key Laboratory of Human Functional Genomics of Jiangsu Province, National Health Commission Key Laboratory of Antibody Techniques, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu, China
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Gerlza T, Trojacher C, Kitic N, Adage T, Kungl AJ. Development of Molecules Antagonizing Heparan Sulfate Proteoglycans. Semin Thromb Hemost 2021; 47:316-332. [PMID: 33794555 DOI: 10.1055/s-0041-1725067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Heparan sulfate proteoglycans (HSPGs) occur in almost every tissue of the human body and consist of a protein core, with covalently attached glycosaminoglycan polysaccharide chains. These glycosaminoglycans are characterized by their polyanionic nature, due to sulfate and carboxyl groups, which are distributed along the chain. These chains can be modified by different enzymes at varying positions, which leads to huge diversity of possible structures with the complexity further increased by varying chain lengths. According to their location, HSPGs are divided into different families, the membrane bound, the secreted extracellular matrix, and the secretory vesicle family. As members of the extracellular matrix, they take part in cell-cell communication processes on many levels and with different degrees of involvement. Of particular therapeutic interest is their role in cancer and inflammation as well as in infectious diseases. In this review, we give an overview of the current status of medical approaches to antagonize HSPG function in pathology.
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Affiliation(s)
- Tanja Gerlza
- Karl-Franzens University Graz, Institute of Pharmaceutical Sciences, Graz, Austria
| | - Christina Trojacher
- Karl-Franzens University Graz, Institute of Pharmaceutical Sciences, Graz, Austria
| | - Nikola Kitic
- Karl-Franzens University Graz, Institute of Pharmaceutical Sciences, Graz, Austria
| | | | - Andreas J Kungl
- Karl-Franzens University Graz, Institute of Pharmaceutical Sciences, Graz, Austria.,Antagonis Biotherapeutics GmbH, Graz, Austria
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41
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Ma YS, Liu JB, Wu TM, Fu D. New Therapeutic Options for Advanced Hepatocellular Carcinoma. Cancer Control 2021; 27:1073274820945975. [PMID: 32799550 PMCID: PMC7791453 DOI: 10.1177/1073274820945975] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Hepatocellular carcinoma (HCC), one of the most common lethal diseases in the world, has a 5-year survival rate of only 7%. Hepatocellular carcinoma has no symptoms in the early stage but obvious symptoms in the late stage, leading to delayed diagnosis and reduced treatment efficacy. In recent years, as the scope of HCC research has increased in depth, the clinical development and application of molecular targeted drugs and immunotherapy drugs have brought new breakthroughs in HCC treatment. Targeted therapy drugs for HCC have high specificity, allowing them to selectively kill tumor cells and minimize damage to normal tissues. At present, these targeted drugs are mainly classified into 3 categories: small molecule targeted drugs, HCC antigen-specific targeted drugs, and immune checkpoint targeted drugs. This article reviews the latest research progress on the targeted drugs for HCC.
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Affiliation(s)
- Yu-Shui Ma
- Cancer Institute, 377323Nantong Tumor Hospital, Nantong, China.,Department of Radiology, 12485The Forth Affiliated Hospital of Anhui Medical University, Hefei, China.,Central Laboratory for Medical Research, Shanghai Tenth People's Hospital, 12476Tongji University School of Medicine, Shanghai, China
| | - Ji-Bin Liu
- Cancer Institute, 377323Nantong Tumor Hospital, Nantong, China
| | - Ting-Miao Wu
- Department of Radiology, 12485The Forth Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Da Fu
- Cancer Institute, 377323Nantong Tumor Hospital, Nantong, China.,Central Laboratory for Medical Research, Shanghai Tenth People's Hospital, 12476Tongji University School of Medicine, Shanghai, China
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Rodakowska E, Walczak-Drzewiecka A, Borowiec M, Gorzkiewicz M, Grzesik J, Ratajewski M, Rozanski M, Dastych J, Ginalski K, Rychlewski L. Recombinant immunotoxin targeting GPC3 is cytotoxic to H446 small cell lung cancer cells. Oncol Lett 2021; 21:222. [PMID: 33613711 PMCID: PMC7859473 DOI: 10.3892/ol.2021.12483] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 12/09/2020] [Indexed: 12/15/2022] Open
Abstract
Glypican-3 (GPC3) is a cell membrane glycoprotein that regulates cell growth and proliferation. Aberrant expression or distribution of GPC3 underlies developmental abnormalities and the development of solid tumours. The strongest evidence for the participation of GPC3 in carcinogenesis stems from studies on hepatocellular carcinoma and lung squamous cell carcinoma. To the best of our knowledge, the role of the GPC3 protein and its potential therapeutic application have never been studied in small cell lung carcinoma (SCLC), despite the known involvement of associated pathways and the high mortality caused by this disease. Therefore, the aim of the present study was to examine GPC3 targeting for SCLC immunotherapy. An immunotoxin carrying an anti-GPC3 antibody (hGC33) and Pseudomonas aeruginosa exotoxin A 38 (PE38) was generated. This hGC33-PE38 protein was overexpressed in E. coli and purified. ADP-ribosylation activity was tested in vitro against eukaryotic translation elongation factor 2. Cell internalisation ability was confirmed by confocal microscopy. Cytotoxicity was analysed by treating liver cancer (HepG2, SNU-398 and SNU-449) and lung cancer (NCI-H510A, NCI-H446, A549 and SK-MES1) cell lines with hGC33-PE38 and estimating viable cells number. A BrdU assay was employed to verify anti-proliferative activity of hGC33-PE38 on treated cells. Fluorescence-activated cell sorting was used for the detection of cell membrane-bound GPC3. The hGC33-PE38 immunotoxin displayed enzymatic activity comparable to native PE38. The protein was efficiently internalised by GPC3-positive cells. Moreover, hGC33-PE38 was cytotoxic to HepG2 cells but had no effect on known GPC3-negative cell lines. The H446 cells were sensitive to hGC33-PE38 (IC50, 70.6±4.6 ng/ml), whereas H510A cells were resistant. Cell surface-bound GPC3 was abundant on the membranes of H446 cells, but absent on H510A. Altogether, the present findings suggested that GPC3 could be considered as a potential therapeutic target for SCLC immunotherapy.
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Affiliation(s)
| | - Aurelia Walczak-Drzewiecka
- Laboratory of Cellular Immunology, Institute of Medical Biology, Polish Academy of Sciences, 93-232 Lodz, Poland
| | - Marta Borowiec
- Laboratory of Bioinformatics and Systems Biology, Centre of New Technologies, University of Warsaw, 02-89 Warsaw, Poland
| | - Michal Gorzkiewicz
- Laboratory of Cellular Immunology, Institute of Medical Biology, Polish Academy of Sciences, 93-232 Lodz, Poland.,Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 90-236 Lodz, Poland
| | - Joanna Grzesik
- Laboratory of Bioinformatics and Systems Biology, Centre of New Technologies, University of Warsaw, 02-89 Warsaw, Poland
| | - Marcin Ratajewski
- Laboratory of Epigenetics, Institute of Medical Biology, Polish Academy of Sciences, 93-232 Lodz, Poland
| | - Michal Rozanski
- Laboratory of Cellular Immunology, Institute of Medical Biology, Polish Academy of Sciences, 93-232 Lodz, Poland
| | - Jaroslaw Dastych
- Laboratory of Cellular Immunology, Institute of Medical Biology, Polish Academy of Sciences, 93-232 Lodz, Poland
| | - Krzysztof Ginalski
- Laboratory of Bioinformatics and Systems Biology, Centre of New Technologies, University of Warsaw, 02-89 Warsaw, Poland
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43
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Meng P, Zhang YF, Zhang W, Chen X, Xu T, Hu S, Liang X, Feng M, Yang X, Ho M. Identification of the atypical cadherin FAT1 as a novel glypican-3 interacting protein in liver cancer cells. Sci Rep 2021; 11:40. [PMID: 33420124 PMCID: PMC7794441 DOI: 10.1038/s41598-020-79524-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 12/07/2020] [Indexed: 12/14/2022] Open
Abstract
Glypican-3 (GPC3) is a cell surface heparan sulfate proteoglycan that is being evaluated as an emerging therapeutic target in hepatocellular carcinoma (HCC). GPC3 has been shown to interact with several extracellular signaling molecules, including Wnt, HGF, and Hedgehog. Here, we reported a cell surface transmembrane protein (FAT1) as a new GPC3 interacting protein. The GPC3 binding region on FAT1 was initially mapped to the C-terminal region (Q14517, residues 3662-4181), which covered a putative receptor tyrosine phosphatase (RTP)-like domain, a Laminin G-like domain, and five EGF-like domains. Fine mapping by ELISA and flow cytometry showed that the last four EGF-like domains (residues 4013-4181) contained a specific GPC3 binding site, whereas the RTP domain (residues 3662-3788) and the downstream Laminin G-2nd EGF-like region (residues 3829-4050) had non-specific GPC3 binding. In support of their interaction, GPC3 and FAT1 behaved concomitantly or at a similar pattern, e.g. having elevated expression in HCC cells, being up-regulated under hypoxia conditions, and being able to regulate the expression of EMT-related genes Snail, Vimentin, and E-Cadherin and promoting HCC cell migration. Taken together, our study provides the initial evidence for the novel mechanism of GPC3 and FAT1 in promoting HCC cell migration.
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Affiliation(s)
- Panpan Meng
- College of Life Science and Technology, Huazhong Agricultural University, No.1 Shizishan Street, Wuhan, 430070, Hubei Province, China
| | - Yi-Fan Zhang
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Wangli Zhang
- College of Life Science and Technology, Huazhong Agricultural University, No.1 Shizishan Street, Wuhan, 430070, Hubei Province, China
| | - Xin Chen
- College of Life Science and Technology, Huazhong Agricultural University, No.1 Shizishan Street, Wuhan, 430070, Hubei Province, China
| | - Tong Xu
- College of Life Science and Technology, Huazhong Agricultural University, No.1 Shizishan Street, Wuhan, 430070, Hubei Province, China
| | - Sheng Hu
- Hubei Cancer Hospital, Wuhan, 430079, Hubei, China
| | - Xinjun Liang
- Hubei Cancer Hospital, Wuhan, 430079, Hubei, China
| | - Mingqian Feng
- College of Biomedicine and Health, Huazhong Agricultural University, No.1 Shizishan Street, Wuhan, 430070, Hubei Province, China.
| | - Xiaoqing Yang
- Hospital of Huazhong Agricultural University, No.1 Shizishan Street, Wuhan, 430070, Hubei Province, China.
| | - Mitchell Ho
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
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44
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Zhu J, Wang Y, Yang P, Liu Q, Hu J, Yang W, Liu P, He F, Bai Y, Gai S, Xie R, Li C. GPC3-targeted and curcumin-loaded phospholipid microbubbles for sono-photodynamic therapy in liver cancer cells. Colloids Surf B Biointerfaces 2021; 197:111358. [DOI: 10.1016/j.colsurfb.2020.111358] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 08/10/2020] [Accepted: 08/28/2020] [Indexed: 12/16/2022]
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45
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Shih TC, Wang L, Wang HC, Wan YJY. Glypican-3: A molecular marker for the detection and treatment of hepatocellular carcinoma ☆. LIVER RESEARCH 2020; 4:168-172. [PMID: 33384879 PMCID: PMC7771890 DOI: 10.1016/j.livres.2020.11.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Hepatocellular carcinoma (HCC) is a malignant tumor with a fairly poor prognosis (5-year survival of less than 50%). Using sorafenib, the only food and drug administration (FDA)-approved drug, HCC cannot be effectively treated; it can only be controlled at most for a couple of months. There is a great need to develop efficacious treatment against this debilitating disease. Glypican-3 (GPC3), a member of the glypican family that attaches to the cell surface by a glycosylphosphatidylinositol anchor, is overexpressed in HCC cases and is elevated in the serum of a large proportion of patients with HCC. GPC3 expression contributes to HCC growth and metastasis. Furthermore, several different types of antibodies targeting GPC3 have been developed. The aim of this review is to summarize the current literatures on the GPC3 expression in human HCC, molecular mechanisms of GPC3 regulation and antibodies targeting GPC3.
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Affiliation(s)
- Tsung-Chieh Shih
- Department of Biochemistry and Molecular Medicine, University of California Davis, Sacramento, CA, USA
| | - Lijun Wang
- Department of Pathology and Laboratory Medicine, University of California Davis, Sacramento, CA, USA
| | - Hsiao-Chi Wang
- Department of Internal Medicine, University of California Davis, Davis, CA, USA
| | - Yu-Jui Yvonne Wan
- Department of Pathology and Laboratory Medicine, University of California Davis, Sacramento, CA, USA,Corresponding author. Department of Pathology and Laboratory Medicine, University of California Davis, Sacramento, CA, USA. (Y.-J.Y. Wan)
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46
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Shen J, Cai W, Ma Y, Xu R, Huo Z, Song L, Qiu X, Zhang Y, Li A, Cao W, Zhou S, Tang X. hGC33-Modified and Sorafenib-Loaded Nanoparticles have a Synergistic Anti-Hepatoma Effect by Inhibiting Wnt Signaling Pathway. NANOSCALE RESEARCH LETTERS 2020; 15:220. [PMID: 33242103 PMCID: PMC7691417 DOI: 10.1186/s11671-020-03451-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 11/12/2020] [Indexed: 05/06/2023]
Abstract
Delivery of tumor-specific inhibitors is a challenge in cancer treatment. Antibody-modified nanoparticles can deliver their loaded drugs to tumor cells that overexpress specific tumor-associated antigens. Here, we constructed sorafenib-loaded polyethylene glycol-b-PLGA polymer nanoparticles modified with antibody hGC33 to glypican-3 (GPC3 +), a membrane protein overexpressed in hepatocellular carcinoma. We found that hGC33-modified NPs (hGC33-SFB-NP) targeted GPC3+ hepatocellular carcinoma (HCC) cells by specifically binding to GPC3 on the surface of HCC cells, inhibited Wnt-induced signal transduction, and inhibited HCC cells in G0/1 by down-regulating cyclin D1 expression, thus attenuating HCC cell migration by inhibiting epithelial-mesenchymal transition. hGC33-SFB-NP inhibited the migration, cycle progression, and proliferation of HCC cells by inhibiting the Ras/Raf/MAPK pathway and the Wnt pathway in tandem with GPC3 molecules, respectively. hGC33-SFB-NP inhibited the growth of liver cancer in vivo and improved the survival rate of tumor-bearing mice. We conclude that hGC33 increases the targeting of SFB-NP to HCC cells. hGC33-SFB-NP synergistically inhibits the progression of HCC by blocking the Wnt pathway and the Ras/Raf/MAPK pathway.
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Affiliation(s)
- Jing Shen
- Medical School, Anhui University of Science and Technology, Huainan, 232001, China
- Wuhu Research Institute, Anhui University of Science and Technology, Huainan, 232001, China
| | - Wenpeng Cai
- Medical School, Anhui University of Science and Technology, Huainan, 232001, China
- Wuhu Research Institute, Anhui University of Science and Technology, Huainan, 232001, China
| | - Yongfang Ma
- Medical School, Anhui University of Science and Technology, Huainan, 232001, China
- Wuhu Research Institute, Anhui University of Science and Technology, Huainan, 232001, China
| | - Ruyue Xu
- Medical School, Anhui University of Science and Technology, Huainan, 232001, China
- Wuhu Research Institute, Anhui University of Science and Technology, Huainan, 232001, China
| | - Zhen Huo
- Medical School, Anhui University of Science and Technology, Huainan, 232001, China
- Wuhu Research Institute, Anhui University of Science and Technology, Huainan, 232001, China
| | - Li Song
- Medical School, Anhui University of Science and Technology, Huainan, 232001, China
- Wuhu Research Institute, Anhui University of Science and Technology, Huainan, 232001, China
| | - Xinyin Qiu
- Medical School, Anhui University of Science and Technology, Huainan, 232001, China
- Wuhu Research Institute, Anhui University of Science and Technology, Huainan, 232001, China
| | - Yinci Zhang
- Medical School, Anhui University of Science and Technology, Huainan, 232001, China
- Wuhu Research Institute, Anhui University of Science and Technology, Huainan, 232001, China
| | - Amin Li
- Medical School, Anhui University of Science and Technology, Huainan, 232001, China
- Wuhu Research Institute, Anhui University of Science and Technology, Huainan, 232001, China
| | - Weiya Cao
- Medical School, Anhui University of Science and Technology, Huainan, 232001, China
- Wuhu Research Institute, Anhui University of Science and Technology, Huainan, 232001, China
| | - Shuping Zhou
- Medical School, Anhui University of Science and Technology, Huainan, 232001, China
| | - Xiaolong Tang
- Wuhu Research Institute, Anhui University of Science and Technology, Huainan, 232001, China.
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32A9, a novel human antibody for designing an immunotoxin and CAR-T cells against glypican-3 in hepatocellular carcinoma. J Transl Med 2020; 18:295. [PMID: 32746924 PMCID: PMC7398316 DOI: 10.1186/s12967-020-02462-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 07/28/2020] [Indexed: 12/21/2022] Open
Abstract
Background Treatment of hepatocellular carcinoma (HCC) using antibody-based targeted therapies, such as antibody conjugates and chimeric antigen receptor T (CAR-T) cell therapy, shows potent antitumor efficacy. Glypican-3 (GPC3) is an emerging HCC therapeutic target; therefore, antibodies against GPC3 would be useful tools for developing immunotherapies for HCC. Methods We isolated a novel human monoclonal antibody, 32A9, by phage display technology. We determined specificity, affinity, epitope and anti-tumor activity of 32A9, and developed 32A9-based immunotherapy technologies for evaluating the potency of HCC treatment in vitro or in vivo. Results 32A9 recognized human GPC3 with potent affinity and specificity. The epitope of 32A9 was located in the region of the GPC3 protein core close to the modification sites of the HS chain and outside of the Wnt-binding site of GPC3. The 32A9 antibody significantly inhibited HCC xenograft tumor growth in vivo. We then pursued two 32A9-based immunotherapeutic strategies by constructing an immunotoxin and CAR-T cells. The 32A9 immunotoxin exhibited specific cytotoxicity to GPC3-positive cancer cells, while 32A9 CAR-T cells efficiently eliminated GPC3-positive HCC cells in vitro and caused HCC xenograft tumor regressions in vivo. Conclusions Our study provides a rationale for 32A9 as a promising GPC3-specific antibody candidate for HCC immunotherapy.
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48
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He C, Jaffar Ali D, Li Y, Zhu Y, Sun B, Xiao Z. Engineering of HN3 increases the tumor targeting specificity of exosomes and upgrade the anti-tumor effect of sorafenib on HuH-7 cells. PeerJ 2020; 8:e9524. [PMID: 33062407 PMCID: PMC7527773 DOI: 10.7717/peerj.9524] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 06/20/2020] [Indexed: 12/14/2022] Open
Abstract
Safe, efficient and cancer cell targeted delivery of CRISPR/Cas9 is important to increase the effectiveness of available cancer treatments. Although cancer derived exosomes offer significant advantages, the fact that it carries cancer related/inducing signaling molecules impedes them from being used as a reliable drug delivery vehicle. In this study, we report that normal epithelial cell-derived exosomes engineered to have HN3 (HN3LC9-293exo), target tumor cells as efficiently as that of the cancer cell-derived exosomes (C9HuH-7exo). HN3LC9-293exo were quickly absorbed by the recipient cancer cell in vitro. Anchoring HN3 to the membrane of the exosomes using LAMP2, made HN3LC9-293exo to specifically enter the GPC3+ HuH-7 cancer cells than the GPC3− LO2 cells in a co-culture model. Further, sgIQ 1.1 plasmids were loaded to exosomes and surprisingly, in combination with sorafenib, synergistic anti-proliferative and apoptotic effect of loaded HN3LC9-293exo was more than the loaded C9HuH-7exo. While cancer-derived exosomes might induce the drug resistance and tumor progression, normal HEK-293 cells-derived exosomes with modifications for precise cancer cell targeting like HN3LC9-293exo can act as better, safe and natural delivery systems to improve the efficacy of the cancer treatments.
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Affiliation(s)
- Cong He
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, China
| | - Doulathunnisa Jaffar Ali
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, China.,Key Laboratory for Developmental Genes and Human Disease, Ministry of Education, Institute of Life Sciences, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Southeast University, Nanjing, Jiangsu, China
| | - Yumin Li
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, China
| | - Yanliang Zhu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, China
| | - Bo Sun
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, China
| | - Zhongdang Xiao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, China
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49
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Abstract
Glypicans are a family of heparan sulfate proteoglycans that are attached to the cell membrane via a glycosylphosphatidylinositol anchor. Glypicans interact with multiple ligands, including morphogens, growth factors, chemokines, ligands, receptors, and components of the extracellular matrix through their heparan sulfate chains and core protein. Therefore, glypicans can function as coreceptors to regulate cell proliferation, cell motility, and morphogenesis. In addition, some glypicans are abnormally expressed in cancers, possibly involved in tumorigenesis, and have the potential to be cancer-specific biomarkers. Here, we provide a brief review focusing on the expression of glypicans in various cancers and their potential to be targets for cancer therapy.
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Affiliation(s)
- Nan Li
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Madeline R Spetz
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Mitchell Ho
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
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Antibody-Drug Conjugates and Targeted Treatment Strategies for Hepatocellular Carcinoma: A Drug-Delivery Perspective. Molecules 2020; 25:molecules25122861. [PMID: 32575828 PMCID: PMC7356544 DOI: 10.3390/molecules25122861] [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: 05/26/2020] [Revised: 06/16/2020] [Accepted: 06/18/2020] [Indexed: 12/12/2022] Open
Abstract
Increased understanding of cancer biology, pharmacology and drug delivery has provided a new framework for drug discovery and product development that relies on the unique expression of specific macromolecules (i.e., antigens) on the surface of tumour cells. This has enabled the development of anti-cancer treatments that combine the selectivity of antibodies with the efficacy of highly potent chemotherapeutic small molecules, called antibody-drug conjugates (ADCs). ADCs are composed of a cytotoxic drug covalently linked to an antibody which then selectively binds to a highly expressed antigen on a cancer cell; the conjugate is then internalized by the cell where it releases the potent cytotoxic drug and efficiently kills the tumour cell. There are, however, many challenges in the development of ADCs, mainly around optimizing the therapeutic/safety benefits. These challenges are discussed in this review; they include issues with the plasma stability and half-life of the ADC, its transport from blood into and distribution throughout the tumour compartment, cancer cell antigen expression and the ADC binding affinity to the target antigen, the cell internalization process, cleaving of the cytotoxic drug from the ADC, and the cytotoxic effect of the drug on the target cells. Finally, we present a summary of some of the experimental ADC strategies used in the treatment of hepatocellular carcinoma, from the recent literature.
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