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Rodríguez-Nava C, Ortuño-Pineda C, Illades-Aguiar B, Flores-Alfaro E, Leyva-Vázquez MA, Parra-Rojas I, Del Moral-Hernández O, Vences-Velázquez A, Cortés-Sarabia K, Alarcón-Romero LDC. Mechanisms of Action and Limitations of Monoclonal Antibodies and Single Chain Fragment Variable (scFv) in the Treatment of Cancer. Biomedicines 2023; 11:1610. [PMID: 37371712 DOI: 10.3390/biomedicines11061610] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/24/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
Monoclonal antibodies are among the most effective tools for detecting tumor-associated antigens. The U.S. Food and Drug Administration (FDA) has approved more than 36 therapeutic antibodies for developing novel alternative therapies that have significant success rates in fighting cancer. However, some functional limitations have been described, such as their access to solid tumors and low interaction with the immune system. Single-chain variable fragments (scFv) are versatile and easy to produce, and being an attractive tool for use in immunotherapy models. The small size of scFv can be advantageous for treatment due to its short half-life and other characteristics related to the structural and functional aspects of the antibodies. Therefore, the main objective of this review was to describe the current situation regarding the mechanisms of action, applications, and limitations of monoclonal antibodies and scFv in the treatment of cancer.
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Affiliation(s)
- Cynthia Rodríguez-Nava
- Laboratorio de Investigación en Citopatología e Histoquímica, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39070, Mexico
- Laboratorio de Investigación en Inmunobiología y Diagnóstico Molecular, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39070, Mexico
| | - Carlos Ortuño-Pineda
- Laboratorio de Proteínas y Ácidos Nucleicos, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39070, Mexico
| | - Berenice Illades-Aguiar
- Laboratorio de Investigación en Biomedicina Molecular, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39070, Mexico
| | - Eugenia Flores-Alfaro
- Laboratorio de Investigación en Epidemiología Clínica y Molecular, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39070, Mexico
| | - Marco Antonio Leyva-Vázquez
- Laboratorio de Investigación en Biomedicina Molecular, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39070, Mexico
| | - Isela Parra-Rojas
- Laboratorio de Investigación en Obesidad y Diabetes, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39070, Mexico
| | | | - Amalia Vences-Velázquez
- Laboratorio de Investigación en Inmunobiología y Diagnóstico Molecular, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39070, Mexico
| | - Karen Cortés-Sarabia
- Laboratorio de Investigación en Inmunobiología y Diagnóstico Molecular, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39070, Mexico
| | - Luz Del Carmen Alarcón-Romero
- Laboratorio de Investigación en Citopatología e Histoquímica, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39070, Mexico
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Fujita K, Yao T. Discordance of positive immunohistochemical results among different primary HER2 antibodies used in breast cancer: A comparison between Histofine® HER2 Kit (MONO) SV2-61γ antibody and Ventana I-VIEW PATHWAY™ HER2 4B5 antibody. REVISTA ESPANOLA DE PATOLOGIA : PUBLICACION OFICIAL DE LA SOCIEDAD ESPANOLA DE ANATOMIA PATOLOGICA Y DE LA SOCIEDAD ESPANOLA DE CITOLOGIA 2022; 55:222-229. [PMID: 36154727 DOI: 10.1016/j.patol.2022.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/25/2022] [Accepted: 04/01/2022] [Indexed: 06/16/2023]
Abstract
INTRODUCTION Immunohistochemical (IHC) testing for human epidermal growth factor receptor 2 (HER2) expression status renders variable scores among different primary antibodies. MATERIALS AND METHODS We assessed HER2 expression status by IHC score using two types of kits, i.e., Roche Ventana I-VIEW PATHWAY™ HER2 using the 4B5 antibody that recognizes the intracellular domain (ICD) and Nichirei Biosciences Histofine® HER2 Kit (MONO) using the SV2-61γ antibody that recognizes the extracellular domain (ECD). In addition, we determined the presence or absence of the ECD in samples by Western blotting (WB) and examined its relationship with the IHC score. RESULTS Of 101 samples, 44 and 9 samples received a score of 2+/3+ by IHC with 4B5 and SV2-61γ, respectively. A verification by WB in samples with a discrepancy of IHC scores found that samples with the score of 2+/3+ with SV2-61γ showed a significantly higher protein intensity of p185HER2 with the ECD, whereas samples with a score of 2+/3+ with 4B5 but as 0/1+ with SV2-61γ showed a significantly higher protein intensity of p95HER2 without the ECD. CONCLUSION The nature of primary antibodies used for IHC and the presence or absence of the ECD in samples may contribute to different positive rates between 4B5 and SV2-61γ.
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Affiliation(s)
- Kei Fujita
- Juntendo University Graduate School of Medicine, Department of Human Pathology, Tokyo, Japan.
| | - Takashi Yao
- Juntendo University Graduate School of Medicine, Department of Human Pathology, Tokyo, Japan
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Li L, Liu T, Shi L, Zhang X, Guo X, Hu B, Yao M, Zhu H, Yang Z, Jia B, Wang F. HER2-targeted dual radiotracer approach with clinical potential for noninvasive imaging of trastuzumab-resistance caused by epitope masking. Am J Cancer Res 2022; 12:5551-5563. [PMID: 35910795 PMCID: PMC9330517 DOI: 10.7150/thno.74154] [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: 04/19/2022] [Accepted: 06/29/2022] [Indexed: 01/10/2023] Open
Abstract
Rationale: The decreased HER2-accessibility by epitope masking is a primary trastuzumab-resistance mechanism. In this study, we developed a HER2-targeted dual radiotracer approach to predict the HER2-trastuzumab engagement noninvasively. Methods: Two novel HER2-specific VHHs, MIRC208 and MIRC213, were acquired by immunizing alpaca with human HER2 protein, and were site-specifically labeled with 99mTc. Biodistribution and SPECT/CT imaging studies were performed in mice bearing HER2-positive and HER2-negative tumors. The HER2 binding sites of 99mTc-MIRC208 and 99mTc-MIRC213 were investigated by cell binding and SPECT/CT imaging studies. We evaluated the therapeutic predictive ability of our dual-radiotracer imaging approach for trastuzumab treatment in mice bearing MUC4-positive tumors (trastuzumab-resistant JIMT-1 and 87MUC4) and MUC4-negative tumors (trastuzumab-sensitive 7HER2 and NCI-N87). The preliminary clinical studies of 99mTc-MIRC208 were performed in two patients with HER2-positive breast tumors. Results:99mTc-MIRC208 and 99mTc-MIRC213 clearly visualized HER2-positive tumors, but not HER2-negative tumors. 99mTc-MIRC208 competes with trastuzumab for HER2-binding while 99mTc-MIRC213 recognizes HER2 on an epitope that is not masked by MUC4. The SPECT/CT studies with 99mTc-MIRC208 and 99mTc-MIRC213 clearly showed that the MUC4-negative and trastuzumab-sensitive 7HER2 and NCI-N87 tumors had very similar tumor uptake with the SUV208/SUV213 (2 h) ratios of 1.11 ± 0.17 in 7HER2 and 1.25 ± 0.22 in NCI-N87. However, the MUC4-positive JIMT-1 tumors showed the decreased SUV208/SUV213 (2 h) ratio (0.63 ± 0.07), which correlated well with the low response rate to trastuzumab therapy. The SUV208/SUV213 (2 h) ratio was reduced to 0.72 ± 0.02 in MUC4-expressing NCI-N87 cells, and resulting in the decreased trastuzumab sensitivity, further supporting the correlation between the SUV208/SUV213 (2 h) ratio and trastuzumab-sensitivity. The primary and metastatic HER2-positive lesions of patients were clearly visualized by 99mTc-MIRC208 SPECT at 2 h post injection. Conclusion: Overall, we demonstrated that the dual radiotracer imaging strategy is a valid noninvasive approach for the cancer patient selection before trastuzumab therapy. 99mTc-MIRC213 SPECT is utilized to quantify the tumor HER2 expression and screen HER2-positive cancer patients, while 99mTc-MIRC208 SPECT is used to determine the HER2-accessibility of trastuzumab. The SUV208/SUV213 (2 h) ratio is an important biomarker to determine the responsiveness of trastuzumab therapy.
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Affiliation(s)
- Liqiang Li
- Medical Isotopes Research Center and Department of Radiation Medicine, School of Basic Medical Sciences, Peking University, Beijing, 100191, China.,Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Nuclear Medicine, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Tianyu Liu
- Medical Isotopes Research Center and Department of Radiation Medicine, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Linqing Shi
- Medical Isotopes Research Center and Department of Radiation Medicine, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Xin Zhang
- Medical Isotopes Research Center and Department of Radiation Medicine, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Xiaoyi Guo
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Nuclear Medicine, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Biao Hu
- Medical Isotopes Research Center and Department of Radiation Medicine, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Meinan Yao
- Medical Isotopes Research Center and Department of Radiation Medicine, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Hua Zhu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Nuclear Medicine, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Zhi Yang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Nuclear Medicine, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Bing Jia
- Medical Isotopes Research Center and Department of Radiation Medicine, School of Basic Medical Sciences, Peking University, Beijing, 100191, China.,Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, Peking University, Beijing, 100191, China.,✉ Corresponding author:
| | - Fan Wang
- Medical Isotopes Research Center and Department of Radiation Medicine, School of Basic Medical Sciences, Peking University, Beijing, 100191, China.,Key Laboratory of Protein and Peptide Pharmaceuticals, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.,Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou 510005, China
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Chen X, Lin Y, Jiang Z, Li Y, Zhang Y, Wang Y, Yu F, Guo W, Chen L, Chen M, Zhang W, Wang C, Fu F. HER2 copy number quantification in primary tumor and cell-free DNA provides additional prognostic information in HER2 positive early breast cancer. Breast 2022; 62:114-122. [PMID: 35158152 PMCID: PMC8850316 DOI: 10.1016/j.breast.2022.02.002] [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: 04/23/2021] [Revised: 11/07/2021] [Accepted: 02/03/2022] [Indexed: 12/24/2022] Open
Abstract
Background The quantitative relationship between HER2 copy number and prognosis in HER2 positive adjuvant setting remain controversial, and few studies have focused on adjuvant setting to illustrate the potential clinical relevance of HER2 in cfDNA. Our study aim to develop a novel method in HER2 quantification and explore the relationship between HER2 copy number in primary tumors or cfDNA and prognosis in HER2 positive early breast cancer. Methods Two hundred and two patients with early breast cancer were prospectively included in a study where primary tumors, matching non-cancer breast tissue, corresponding plasma, and the plasma from 20 healthy volunteers were collected. Cox proportional hazard analysis was employed to determine the prognostic value of HER2 gene copy number in tissue and cfDNA. Tissue based nomograms and time-dependent decision curve analysis were used to evaluate the practicality of HER2 copy number stratification. Results HER2 amplification by CNVplex demonstrated a robust concordance with FISH (concordance 89.2%). A three-tiered system of tissue and a two-tiered system of cfDNA classification were shown to be independent prognostic factors. A tissue copy number-based nomogram was fitted and further evaluation revealed a good performance in discrimination (c statistic 0.801) and calibration. Conclusions We first report CNVplex as a viable alternative for HER2 detection. Quantitative evaluation of HER2 presents tremendous potential for use in risk stratification. We also uncover the potential for using HER2 copy number in cfDNA as a biomarker for prognosis in a HER2 positive adjuvant setting. CNVplex was developed to quantify HER2 copy number. HER2 copy number of primary tumor present quantitative relationship with prognosis in HER2 positive early breast cancer. HER2 copy number of cfDNA could function as a biomarker for prognosis.
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Kang M, Na HY, Ahn S, Kim JW, Lee S, Ahn S, Lee JH, Youk J, Kim HT, Kim KJ, Suh KJ, Lee JS, Kim SH, Kim JW, Kim YJ, Lee KW, Yoon YS, Kim JH, Chung JH, Han HS, Lee JS. Gallbladder adenocarcinomas undergo subclonal diversification and selection from precancerous lesions to metastatic tumors. eLife 2022; 11:78636. [PMID: 36476508 PMCID: PMC9771369 DOI: 10.7554/elife.78636] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022] Open
Abstract
We aimed to elucidate the evolutionary trajectories of gallbladder adenocarcinoma (GBAC) using multi-regional and longitudinal tumor samples. Using whole-exome sequencing data, we constructed phylogenetic trees in each patient and analyzed mutational signatures. A total of 11 patients including 2 rapid autopsy cases were enrolled. The most frequently altered gene in primary tumors was ERBB2 and TP53 (54.5%), followed by FBXW7 (27.3%). Most mutations in frequently altered genes in primary tumors were detectable in concurrent precancerous lesions (biliary intraepithelial neoplasia [BilIN]), but a substantial proportion was subclonal. Subclonal diversity was common in BilIN (n=4). However, among subclones in BilIN, a certain subclone commonly shrank in concurrent primary tumors. In addition, selected subclones underwent linear and branching evolution, maintaining subclonal diversity. Combined analysis with metastatic tumors (n=11) identified branching evolution in nine patients (81.8%). Of these, eight patients (88.9%) had a total of 11 subclones expanded at least sevenfold during metastasis. These subclones harbored putative metastasis-driving mutations in cancer-related genes such as SMAD4, ROBO1, and DICER1. In mutational signature analysis, six mutational signatures were identified: 1, 3, 7, 13, 22, and 24 (cosine similarity >0.9). Signatures 1 (age) and 13 (APOBEC) decreased during metastasis while signatures 22 (aristolochic acid) and 24 (aflatoxin) were relatively highlighted. Subclonal diversity arose early in precancerous lesions and clonal selection was a common event during malignant transformation in GBAC. However, selected cancer clones continued to evolve and thus maintained subclonal diversity in metastatic tumors.
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Affiliation(s)
- Minsu Kang
- Department of Internal Medicine, Seoul National University Bundang HospitalSeongnamRepublic of Korea
| | - Hee Young Na
- Department of Pathology, Seoul National University Bundang HospitalSeongnamRepublic of Korea
| | - Soomin Ahn
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of MedicineSeoulRepublic of Korea
| | - Ji-Won Kim
- Department of Internal Medicine, Seoul National University Bundang HospitalSeongnamRepublic of Korea,Genealogy IncSeoulRepublic of Korea
| | - Sejoon Lee
- Center for Precision Medicine, Seoul National University Bundang HospitalSeongnamRepublic of Korea
| | - Soyeon Ahn
- Medical Research Collaboration Center, Seoul National University Bundang HospitalSeongnamRepublic of Korea
| | - Ju Hyun Lee
- Department of Internal Medicine, Seoul National University Bundang HospitalSeongnamRepublic of Korea
| | - Jeonghwan Youk
- Department of Internal Medicine, Seoul National University Bundang HospitalSeongnamRepublic of Korea
| | - Haesook T Kim
- Department of Data Science, Dana Farber Cancer Institute, Harvard T.H. Chan School of Public HealthBostonUnited States
| | - Kui-Jin Kim
- Biomedical Research Institute, Seoul National University Bundang HospitalSeongnamRepublic of Korea
| | - Koung Jin Suh
- Department of Internal Medicine, Seoul National University Bundang HospitalSeongnamRepublic of Korea
| | - Jun Suh Lee
- Department of Surgery, Seoul National University Bundang HospitalSeongnamRepublic of Korea
| | - Se Hyun Kim
- Department of Internal Medicine, Seoul National University Bundang HospitalSeongnamRepublic of Korea
| | - Jin Won Kim
- Department of Internal Medicine, Seoul National University Bundang HospitalSeongnamRepublic of Korea
| | - Yu Jung Kim
- Department of Internal Medicine, Seoul National University Bundang HospitalSeongnamRepublic of Korea
| | - Keun-Wook Lee
- Department of Internal Medicine, Seoul National University Bundang HospitalSeongnamRepublic of Korea
| | - Yoo-Seok Yoon
- Department of Surgery, Seoul National University Bundang HospitalSeongnamRepublic of Korea
| | - Jee Hyun Kim
- Department of Internal Medicine, Seoul National University Bundang HospitalSeongnamRepublic of Korea
| | - Jin-Haeng Chung
- Department of Pathology, Seoul National University Bundang HospitalSeongnamRepublic of Korea
| | - Ho-Seong Han
- Department of Surgery, Seoul National University Bundang HospitalSeongnamRepublic of Korea
| | - Jong Seok Lee
- Department of Internal Medicine, Seoul National University Bundang HospitalSeongnamRepublic of Korea
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