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Yang Q, Chen Z, Qiu Y, Huang W, Wang T, Song L, Sun X, Li C, Xu X, Kang L. Theranostic role of 89Zr- and 177Lu-labeled aflibercept in breast cancer. Eur J Nucl Med Mol Imaging 2024; 51:1246-1260. [PMID: 38135849 DOI: 10.1007/s00259-023-06575-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023]
Abstract
PURPOSE Triple-negative breast cancer (TNBC) has a poor prognosis due to the absence of effective therapeutic targets. Vascular endothelial growth factor (VEGF) family are expressed in 30-60% of TNBC, therefore providing potential therapeutic targets for TNBC. Aflibercept (Abe), a humanized recombinant fusion protein specifically bound to VEGF-A, B and placental growth factor (PIGF), has proven to be effective in the treatment in some cancers. Therefore, 89Zr/177Lu-labeled Abe was investigated for its theranostic role in TNBC. METHODS Abe was radiolabeled with 89Zr and 177Lu via the conjugation of chelators. Flow cytometry and cell immunofluorescent staining were performed to evaluate the binding affinity of Abe. Sequential PET imaging and fluorescent imaging were conducted in TNBC tumor bearing mice following the injection of 89Zr-labeled Abe and Cy5.5-labeled Abe. Treatment study was performed after the administration of 177Lu-labeled Abe. Tumor volume and survival were monitored and SPECT imaging and biodistribution studies were conducted. Safety evaluation was performed including body weight, blood cell measurement, and hematoxylin-eosin (H&E) staining of major organs. Expression of VEGF and CD31 was tested by immunohistochemical staining. Dosimetry was estimated using the OLINDA software. RESULTS FITC-labeled Abe showed a strong binding affinity to VEGF in TNBC 4T1 cells and HUVECs by flow cytometry and cell immunofluorescence. Tumor uptake of 89Zr-labeled Abe peaked at 120 h (SUVmax = 3.2 ± 0.64) and persisted before 168 h (SUVmax = 2.54 ± 0.42). The fluorescence intensity of the Cy5.5-labeled Abe group surpassed that of the Cy5.5-labeled IgG group, implying that Cy5.5-labeled Abe is a viable candidate monitoring in vivo tumor targeting and localization. 177Lu-labeled Abe (11.1 MBq) served well as the therapeutic component to suppress tumor growth with standardized tumor volume at 16 days, significantly smaller than PBS group (about 815.66 ± 3.58% vs 3646.52 ± 11.10%, n = 5, P < 0.01). Moreover, SPECT images confirmed high contrast between tumors and normal organs, indicating selective tumor uptake of 177Lu-labeled Abe. No discernible abnormalities in blood cells, and no evident histopathological abnormality observed in liver, spleen, and kidney. Immunohistochemical staining showed that 177Lu-labeled Abe effectively inhibited the expression of VEGF and CD31 of tumor, suggesting that angiogenesis may be suppressed by 177Lu-labeled Abe. The whole-body effective dose for an adult human was estimated to be 0.16 mSv/MBq. CONCLUSION 89Zr/177Lu-labeled Abe could be a TNBC-specific marker with diagnostic value and provide insights into targeted therapy in the treatment of TNBC. Further clinical evaluation and translation may be of high significance for TNBC.
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Affiliation(s)
- Qi Yang
- Department of Nuclear Medicine, Peking University First Hospital, No. 8 Xishiku Str., Xicheng Dist., Beijing, 100034, China
| | - Zhao Chen
- Department of Nuclear Medicine, Peking University First Hospital, No. 8 Xishiku Str., Xicheng Dist., Beijing, 100034, China
| | - Yongkang Qiu
- Department of Nuclear Medicine, Peking University First Hospital, No. 8 Xishiku Str., Xicheng Dist., Beijing, 100034, China
| | - Wenpeng Huang
- Department of Nuclear Medicine, Peking University First Hospital, No. 8 Xishiku Str., Xicheng Dist., Beijing, 100034, China
| | - Tianyao Wang
- Department of Nuclear Medicine, Peking University First Hospital, No. 8 Xishiku Str., Xicheng Dist., Beijing, 100034, China
| | - Lele Song
- Department of Nuclear Medicine, Peking University First Hospital, No. 8 Xishiku Str., Xicheng Dist., Beijing, 100034, China
| | - Xinyao Sun
- Department of Nuclear Medicine, Peking University First Hospital, No. 8 Xishiku Str., Xicheng Dist., Beijing, 100034, China
| | - Cuicui Li
- Department of Nuclear Medicine, Beijing Friendship Hospital Affiliated to Capital Medical University, 95 Yong'an Rd., Xicheng Dist., Beijing, 100050, China.
| | - Xiaojie Xu
- Department of Medical Molecular Biology, Beijing Institute of Biotechnology, Beijing, 100034, China
| | - Lei Kang
- Department of Nuclear Medicine, Peking University First Hospital, No. 8 Xishiku Str., Xicheng Dist., Beijing, 100034, China.
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Özvegy-Laczka C, Ungvári O, Bakos É. Fluorescence-based methods for studying activity and drug-drug interactions of hepatic solute carrier and ATP binding cassette proteins involved in ADME-Tox. Biochem Pharmacol 2023; 209:115448. [PMID: 36758706 DOI: 10.1016/j.bcp.2023.115448] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 02/11/2023]
Abstract
In humans, approximately 70% of drugs are eliminated through the liver. This process is governed by the concerted action of membrane transporters and metabolic enzymes. Transporters mediating hepatocellular uptake of drugs belong to the SLC (Solute carrier) superfamily of transporters. Drug efflux either toward the portal vein or into the bile is mainly mediated by active transporters of the ABC (ATP Binding Cassette) family. Alteration in the function and/or expression of liver transporters due to mutations, disease conditions, or co-administration of drugs or food components can result in altered pharmacokinetics. On the other hand, drugs or food components interacting with liver transporters may also interfere with liver function (e.g., bile acid homeostasis) and may even cause liver toxicity. Accordingly, certain transporters of the liver should be investigated already at an early stage of drug development. Most frequently radioactive probes are applied in these drug-transporter interaction tests. However, fluorescent probes are cost-effective and sensitive alternatives to radioligands, and are gaining wider application in drug-transporter interaction tests. In our review, we summarize our current understanding about hepatocyte ABC and SLC transporters affected by drug interactions. We provide an update of the available fluorescent and fluorogenic/activable probes applicable in in vitro or in vivo testing of these ABC and SLC transporters, including near-infrared transporter probes especially suitable for in vivo imaging. Furthermore, our review gives a comprehensive overview of the available fluorescence-based methods, not directly relying on the transport of the probe, suitable for the investigation of hepatic ABC or SLC-type drug transporters.
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Affiliation(s)
- Csilla Özvegy-Laczka
- Institute of Enzymology, RCNS, Eötvös Loránd Research Network, H-1117 Budapest, Magyar tudósok krt. 2., Hungary.
| | - Orsolya Ungvári
- Institute of Enzymology, RCNS, Eötvös Loránd Research Network, H-1117 Budapest, Magyar tudósok krt. 2., Hungary; Doctoral School of Biology, Institute of Biology, ELTE Eötvös Loránd University, Budapest, Hungary
| | - Éva Bakos
- Institute of Enzymology, RCNS, Eötvös Loránd Research Network, H-1117 Budapest, Magyar tudósok krt. 2., Hungary
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Zhang L, Ye B, Chen Z, Chen ZS. Progress in the studies on the molecular mechanisms associated with multidrug resistance in cancers. Acta Pharm Sin B 2022; 13:982-997. [PMID: 36970215 PMCID: PMC10031261 DOI: 10.1016/j.apsb.2022.10.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/28/2022] [Accepted: 08/18/2022] [Indexed: 11/01/2022] Open
Abstract
Chemotherapy is one of the important methods to treat cancer, and the emergence of multidrug resistance (MDR) is one major cause for the failure of cancer chemotherapy. Almost all anti-tumor drugs develop drug resistance over a period of time of application in cancer patients, reducing their effects on killing cancer cells. Chemoresistance can lead to a rapid recurrence of cancers and ultimately patient death. MDR may be induced by multiple mechanisms, which are associated with a complex process of multiple genes, factors, pathways, and multiple steps, and today the MDR-associated mechanisms are largely unknown. In this paper, from the aspects of protein-protein interactions, alternative splicing (AS) in pre-mRNA, non-coding RNA (ncRNA) mediation, genome mutations, variance in cell functions, and influence from the tumor microenvironment, we summarize the molecular mechanisms associated with MDR in cancers. In the end, prospects for the exploration of antitumor drugs that can reverse MDR are briefly discussed from the angle of drug systems with improved targeting properties, biocompatibility, availability, and other advantages.
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Li C, Liu J, Yang X, Yang Q, Huang W, Zhang M, Zhou D, Wang R, Gong J, Miao Q, Kang L, Yang J. Theranostic application of 64Cu/ 177Lu-labeled anti-Trop2 monoclonal antibody in pancreatic cancer tumor models. Eur J Nucl Med Mol Imaging 2022; 50:168-183. [PMID: 36063202 DOI: 10.1007/s00259-022-05954-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 08/23/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE Pancreatic cancer is a malignant tumor with a high degree of malignancy, strong heterogeneity, and high lethality. Trop2 is a transmembrane glycoprotein associated with the occurrence, development, and poor prognosis of pancreatic cancer. This study aims to develop 64Cu/177Lu-labeled anti-Trop2 monoclonal antibody (hIMB1636) for positron emission tomography (PET) imaging and radioimmunotherapy (RIT) application in pancreatic cancer tumor models. METHODS The binding kinetics of hIMB1636 to Trop2 antigen was measured by Biolayer interferometry (BLI). Western blotting was used to screen the Trop2 expression of pancreatic cancer cell lines. Flow cytometry and cell immunofluorescence were used to evaluate the binding ability of hIMB1636 and Trop2 on the cell surface. hIMB1636 were conjugated with p-SCN-Bn-NOTA (NOTA) and DOTA-NHS-ester (DOTA) for 64Cu and 177Lu radiolabeling respectively. ImmunoPET imaging and RIT studies were performed using 64Cu-NOTA-hIMB1636 and 177Lu-DOTA-hIMB1636 in subcutaneous pancreatic cancer tumor models. RESULTS hIMB1636 had a strong binding affinity to Trop2 according to the results of BLI. The T3M-4 cell line showed the strongest expression of Trop2 and specific binding ability of hIMB1636 according to the results of Western blotting, flow cytometry, and cell immunofluorescence. The radiochemical purity of 64Cu-NOTA-hIMB1636 and 177Lu-DOTA-hIMB1636 exceeded 95%. PET imaging showed gradually an accumulation of 64Cu-NOTA-hIMB1636 in T3M-4 tumor models. The maximum tumor uptake was 8.95 ± 1.07%ID/g (n = 4) at 48 h post injection (p.i.), which had significant differences with T3M-4-blocked and PaTu8988-negative groups (P < 0.001). The high-177Lu-hIMB1636 group demonstrated the strongest tumor suppression with standardized tumor volume about 94.24 ± 14.62% (n = 5) at 14 days p.i., significantly smaller than other groups (P < 0.05). Ex vivo biodistribution and histological staining verified the in vivo PET imaging and RIT results. CONCLUSIONS This study demonstrated that 64Cu/177Lu-labeled hIMB1636 could noninvasively evaluate the expression level of Trop2 and inhibit the Trop2-overexpressed tumor growth in pancreatic cancer tumor models. Further clinical evaluation and translation of Trop2-targeted drug may be of great help in the stratification and management of pancreatic cancer patients.
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Affiliation(s)
- Cuicui Li
- Department of Nuclear Medicine, Beijing Friendship Hospital Affiliated to Capital Medical University, 95 Yong'an Rd., Xicheng Dist., Beijing, 100050, China.,Department of Nuclear Medicine, Peking University First Hospital, No. 8 Xishiku Str., Xicheng Dist., Beijing, 100034, China
| | - Jun Liu
- Department of Nuclear Medicine, Beijing Friendship Hospital Affiliated to Capital Medical University, 95 Yong'an Rd., Xicheng Dist., Beijing, 100050, China
| | - Xu Yang
- Department of Nuclear Medicine, Beijing Friendship Hospital Affiliated to Capital Medical University, 95 Yong'an Rd., Xicheng Dist., Beijing, 100050, China
| | - Qi Yang
- Department of Nuclear Medicine, Peking University First Hospital, No. 8 Xishiku Str., Xicheng Dist., Beijing, 100034, China
| | - Wenpeng Huang
- Department of Nuclear Medicine, Peking University First Hospital, No. 8 Xishiku Str., Xicheng Dist., Beijing, 100034, China
| | - Mingyu Zhang
- Department of Nuclear Medicine, Beijing Friendship Hospital Affiliated to Capital Medical University, 95 Yong'an Rd., Xicheng Dist., Beijing, 100050, China
| | - Dandan Zhou
- NHC Key Laboratory of Biotechnology of Antibiotics, Department of Oncology, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Courtyard No. 2, Nanwei Rd., Xicheng Dist., Beijing, 100050, China
| | - Rong Wang
- Department of Blood Transfusion, The Affiliated Hospital of Qingdao University, Qingdao, 266000, China
| | - Jianhua Gong
- NHC Key Laboratory of Biotechnology of Antibiotics, Department of Oncology, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Courtyard No. 2, Nanwei Rd., Xicheng Dist., Beijing, 100050, China.
| | - Qingfang Miao
- NHC Key Laboratory of Biotechnology of Antibiotics, Department of Oncology, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Courtyard No. 2, Nanwei Rd., Xicheng Dist., Beijing, 100050, China.
| | - Lei Kang
- Department of Nuclear Medicine, Peking University First Hospital, No. 8 Xishiku Str., Xicheng Dist., Beijing, 100034, China.
| | - Jigang Yang
- Department of Nuclear Medicine, Beijing Friendship Hospital Affiliated to Capital Medical University, 95 Yong'an Rd., Xicheng Dist., Beijing, 100050, China.
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