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Lu Y, Huang Y, Jin J, Yu J, Lu W, Zhu S. Design, synthesis, and biological evaluation of cathepsin B cleavage albumin-binding SN38 prodrug in breast cancer. Bioorg Chem 2024; 147:107370. [PMID: 38621338 DOI: 10.1016/j.bioorg.2024.107370] [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: 12/08/2023] [Revised: 04/12/2024] [Accepted: 04/12/2024] [Indexed: 04/17/2024]
Abstract
Here, we introduce a novel and effective approach utilizing a cathepsin B cleavage albumin-binding SN38 prodrug specifically designed for the treatment of metastatic breast cancer. Termed Mal-va-mac-SN38, our prodrug exhibits a unique ability to rapidly and covalently bind with endogenous albumin, resulting in the formation of HSA-va-mac-SN38. This prodrug demonstrates exceptional stability in human plasma. Importantly, HSA-va-mac-SN38 showcases an impressive enhancement in cellular uptake by 4T1 breast cancer cells, primarily facilitated through caveolin-mediated endocytosis. Intriguingly, the release of the active SN38, is triggered by the enzymatic activity of cathepsin B within the lysosomal environment. In vivo studies employing a lung metastasis 4T1 breast cancer model underscore the potency of HSA-va-mac-SN38. Histological immunohistochemical analyses further illuminate the multifaceted impact of our prodrug, showcasing elevated levels of apoptosis, downregulated expression of matrix metalloproteinases, and inhibition of angiogenesis, all critical factors contributing to the anti-metastatic effect observed. Biodistribution studies elucidate the capacity of Mal-va-mac-SN38 to augment tumor accumulation through covalent binding to serum albumin, presenting a potential avenue for targeted therapeutic interventions. Collectively, our findings propose a promising therapeutic avenue for metastatic breast cancer, through the utilization of a cathepsin B-cleavable albumin-binding prodrug.
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Affiliation(s)
- Yingxin Lu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, PR China
| | - Ying Huang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, PR China
| | - Jiyu Jin
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, PR China
| | - Jiahui Yu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, PR China
| | - Wei Lu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, PR China.
| | - Shulei Zhu
- Innovation Center for AI and Drug Discovery, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, PR China.
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2
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Liu Y, Corrales-Guerrero S, Kuo JC, Robb R, Nagy G, Cui T, Lee RJ, Williams TM. Improved Targeting and Safety of Doxorubicin through a Novel Albumin Binding Prodrug Approach. ACS OMEGA 2024; 9:977-987. [PMID: 38222540 PMCID: PMC10785662 DOI: 10.1021/acsomega.3c07163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 12/08/2023] [Accepted: 12/12/2023] [Indexed: 01/16/2024]
Abstract
Human serum albumin (HSA) improves the pharmacokinetic profile of drugs attached to it, making it an attractive carrier with proven clinical success. In our previous studies, we have shown that Caveolin-1 (Cav-1) and caveolae-mediated endocytosis play important roles in the uptake of HSA and albumin-bound drugs. Doxorubicin is an FDA-approved chemotherapeutic agent that is effective against multiple cancers, but its clinical applicability has been hampered by its high toxicity levels. In this study, a doxorubicin-prodrug was developed that could independently and avidly bind HSA in circulation, called IPBA-Dox. We first developed and characterized IPBA-Dox and confirmed that it can bind albumin in vitro while retaining a potent cytotoxic effect. We then verified that it efficiently binds to HSA in circulation, leading to an improvement in the pharmacokinetic profile of the drug. In addition, we tested our prodrug for Cav-1 selectivity and found that it preferentially affects cells that express relatively higher levels of Cav-1 in vitro and in vivo. Moreover, we found that our compound was well tolerated in vivo at concentrations at which doxorubicin was lethal. Altogether, we have developed a doxorubicin-prodrug that can successfully bind HSA, retaining a strong cytotoxic effect that preferentially targets Cav-1 positive cells while improving the general tolerability of the drug.
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Affiliation(s)
- Yang Liu
- Division
of Pharmaceutics and Pharmacology, The Ohio
State University, Columbus, Ohio 43210-1132, United States
| | - Sergio Corrales-Guerrero
- Biomedical
Sciences Graduate Program, The Ohio State
University, Columbus, Ohio 43210-1132, United States
| | - Jimmy C. Kuo
- Division
of Pharmaceutics and Pharmacology, The Ohio
State University, Columbus, Ohio 43210-1132, United States
| | - Ryan Robb
- University
of North Carolina, Chapel
Hill, North Carolina 27514-3916, United States
| | - Gregory Nagy
- Biomedical
Sciences Graduate Program, The Ohio State
University, Columbus, Ohio 43210-1132, United States
| | - Tiantian Cui
- Department
of Radiation Oncology, City of Hope National
Medical Center, Duarte, California 91010, United States
| | - Robert J. Lee
- Division
of Pharmaceutics and Pharmacology, The Ohio
State University, Columbus, Ohio 43210-1132, United States
| | - Terence M. Williams
- Department
of Radiation Oncology, City of Hope National
Medical Center, Duarte, California 91010, United States
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The Release of a Highly Cytotoxic Paullone Bearing a TEMPO Free Radical from the HSA Hydrogel: An EPR Spectroscopic Characterization. Pharmaceutics 2022; 14:pharmaceutics14061174. [PMID: 35745747 PMCID: PMC9227768 DOI: 10.3390/pharmaceutics14061174] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 05/25/2022] [Accepted: 05/27/2022] [Indexed: 02/05/2023] Open
Abstract
This study shows the potential of a thermally induced human serum albumin (HSA) hydrogel to serve as a drug depot for sustained release of a highly cytotoxic modified paullone ligand bearing a TEMPO free radical (HL). The binding of HL to HSA was studied by electron paramagnetic resonance (EPR) spectroscopy and imaging. The EPR protocol was also implemented for the study of matrix degradation, and ligand diffusion rate, in two additional spin-labeled hydrogels, containing 5-doxylstearate and 3-carbamoyl-proxyl. The results showed that the hydrogel is an efficient HL reservoir as it retained 60% of the ligand during 11 days of dialysis in physiological saline. Furthermore, upon incubation with Colo 205 human colon adenocarcinoma cells for 3 days, the HL/HSA hydrogel did not exhibit cytotoxic activity, demonstrating that it is also an efficient ligand depot in the presence of living cells. It was observed that the percentage of HL release is independent of its initial concentration in the hydrogel, suggesting that HSA possesses a specific binding site for the ligand, most likely Sudlow site 2, as predicted by molecular docking. The intrinsic property of albumin to bind and transport various substances, including hydrophobic drugs, may be fine-tuned by appropriate physical/chemical hydrogel preparation procedures, providing optimal drug delivery.
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Emerging Albumin-Binding Anticancer Drugs for Tumor-Targeted Drug Delivery: Current Understandings and Clinical Translation. Pharmaceutics 2022; 14:pharmaceutics14040728. [PMID: 35456562 PMCID: PMC9028280 DOI: 10.3390/pharmaceutics14040728] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/20/2022] [Accepted: 03/24/2022] [Indexed: 02/01/2023] Open
Abstract
Albumin has shown remarkable promise as a natural drug carrier by improving pharmacokinetic (PK) profiles of anticancer drugs for tumor-targeted delivery. The exogenous or endogenous albumin enhances the circulatory half-lives of anticancer drugs and passively target the tumors by the enhanced permeability and retention (EPR) effect. Thus, the albumin-based drug delivery leads to a potent antitumor efficacy in various preclinical models, and several candidates have been evaluated clinically. The most successful example is Abraxane, an exogenous human serum albumin (HSA)-bound paclitaxel formulation approved by the FDA and used to treat locally advanced or metastatic tumors. However, additional clinical translation of exogenous albumin formulations has not been approved to date because of their unexpectedly low delivery efficiency, which can increase the risk of systemic toxicity. To overcome these limitations, several prodrugs binding endogenous albumin covalently have been investigated owing to distinct advantages for a safe and more effective drug delivery. In this review, we give account of the different albumin-based drug delivery systems, from laboratory investigations to clinical applications, and their potential challenges, and the outlook for clinical translation is discussed. In addition, recent advances and progress of albumin-binding drugs to move more closely to the clinical settings are outlined.
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Gaina V, Nechifor M, Gaina C, Ursache O. Maleimides – a versatile platform for polymeric materials designed/tailored for high performance applications. POLYM-PLAST TECH MAT 2020. [DOI: 10.1080/25740881.2020.1811315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- V. Gaina
- Laboratory of Poliaddition and Photochemistry, “Petru Poni” Institute of Macromolecular Chemistry, Iasi, Romania
| | - M. Nechifor
- Laboratory of Poliaddition and Photochemistry, “Petru Poni” Institute of Macromolecular Chemistry, Iasi, Romania
| | - C. Gaina
- Laboratory of Poliaddition and Photochemistry, “Petru Poni” Institute of Macromolecular Chemistry, Iasi, Romania
| | - O. Ursache
- Laboratory of Poliaddition and Photochemistry, “Petru Poni” Institute of Macromolecular Chemistry, Iasi, Romania
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Chen W, Zhou S, Ge L, Wu W, Jiang X. Translatable High Drug Loading Drug Delivery Systems Based on Biocompatible Polymer Nanocarriers. Biomacromolecules 2018; 19:1732-1745. [PMID: 29690764 DOI: 10.1021/acs.biomac.8b00218] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Most nanocarriers possess low drug loading, resulting in frequently repeated administration and thereby high cost and increased side effects. Furthermore, the characteristics of nanocarrier materials, especially the drug loading capacity, plays a vital role in the drug delivery efficacy. In this review, we focus on the readily translatable polymeric drug delivery systems with high drug loading, which are comprised of biocompatible polymers such as poly(ethylene glycol), poly( N-vinylpyrrolidone), polyoxazoline, natural proteins like albumin and casein, non-natural proteins such as recombinant elastin-like polypeptides, as well as nucleic acids. At the end of this review, applications of these polymeric nanocarriers on the delivery of proteins and gene drugs are also briefly discussed.
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Affiliation(s)
- Weizhi Chen
- MOE Key Laboratory of High Performance Polymer Materials and Technology, Department of Polymer Science & Engineering, College of Chemistry & Chemical Engineering, and Jiangsu Key Laboratory for Nanotechnology , Nanjing University , Nanjing 210093 , P. R. China
| | - Sensen Zhou
- MOE Key Laboratory of High Performance Polymer Materials and Technology, Department of Polymer Science & Engineering, College of Chemistry & Chemical Engineering, and Jiangsu Key Laboratory for Nanotechnology , Nanjing University , Nanjing 210093 , P. R. China
| | - Lei Ge
- MOE Key Laboratory of High Performance Polymer Materials and Technology, Department of Polymer Science & Engineering, College of Chemistry & Chemical Engineering, and Jiangsu Key Laboratory for Nanotechnology , Nanjing University , Nanjing 210093 , P. R. China
| | - Wei Wu
- MOE Key Laboratory of High Performance Polymer Materials and Technology, Department of Polymer Science & Engineering, College of Chemistry & Chemical Engineering, and Jiangsu Key Laboratory for Nanotechnology , Nanjing University , Nanjing 210093 , P. R. China
| | - Xiqun Jiang
- MOE Key Laboratory of High Performance Polymer Materials and Technology, Department of Polymer Science & Engineering, College of Chemistry & Chemical Engineering, and Jiangsu Key Laboratory for Nanotechnology , Nanjing University , Nanjing 210093 , P. R. China
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7
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Walther R, Rautio J, Zelikin AN. Prodrugs in medicinal chemistry and enzyme prodrug therapies. Adv Drug Deliv Rev 2017; 118:65-77. [PMID: 28676386 DOI: 10.1016/j.addr.2017.06.013] [Citation(s) in RCA: 177] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 06/27/2017] [Accepted: 06/29/2017] [Indexed: 12/21/2022]
Abstract
Prodrugs are cunning derivatives of therapeutic agents designed to improve the pharmacokinetics profile of the drug. Within a prodrug, pharmacological activity of the drug is masked and is recovered within the human body upon bioconversion of the prodrug, a process that is typically mediated by enzymes. This concept is highly successful and a significant fraction of marketed therapeutic formulations is based on prodrugs. An advanced subset of prodrugs can be engineered such as to achieve site-specific bioconversion of the prodrug - to comprise the highly advantageous "enzyme prodrug therapy", EPT. Design of prodrugs for EPT is similar to the prodrugs in general medicinal use in that the pharmacological activity of the drug is masked, but differs significantly in that site-specific bioconversion is a prime consideration, and the enzymes typically used for EPT are non-mammalian and/or with low systemic abundance in the human body. This review focuses on the design of prodrugs for EPT in terms of the choice of an enzyme and the corresponding prodrug for bioconversion. We also discuss the recent success of "self immolative linkers" which significantly empower and diversify the prodrug design, and present methodologies for the design of prodrugs with extended blood residence time. The review aims to be of specific interest for medicinal chemists, biomedical engineers, and pharmaceutical scientists.
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Zhang H, Wang Y, Wu Y, Jiang X, Tao Y, Yao Y, Peng Y, Chen X, Fu Y, Yu L, Wang R, Lai Q, Lai W, Li W, Kang Y, Yi S, Lu Y, Gou L, Wu M, Yang J. Therapeutic potential of an anti-HER2 single chain antibody-DM1 conjugates for the treatment of HER2-positive cancer. Signal Transduct Target Ther 2017; 2:17015. [PMID: 29263918 PMCID: PMC5661626 DOI: 10.1038/sigtrans.2017.15] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 11/29/2016] [Accepted: 11/29/2016] [Indexed: 02/05/2023] Open
Abstract
Antibody-drug conjugates (ADCs) take the advantage of monoclonal antibodies to selectively deliver highly potent cytotoxic drugs to tumor cells, which have become a powerful measure for cancer treatment in recent years. To develop a more effective therapy for human epidermal growth factor receptor 2 (HER2)-positive cancer, we explored a novel ADCs composed of anti-HER2 scFv-HSA fusion antibodies conjugates with a potent cytotoxic drug DM1. The resulting ADCs, T-SA1-DM1 and T-SA2-DM1 (drug-to-antibody ratio in the range of 3.2-3.5) displayed efficient inhibition in the growth of HER2-positive tumor cell lines and the half-maximal inhibitory concentration on SKBR-3 and SKOV3 cells were both at the nanomolar levels in vitro. In HER2-positive human ovarian cancer xenograft models, T-SA1-DM1 and T-SA2-DM1 also showed remarkable antitumor activity. Importantly, three out of six mice exhibited complete remission without regrowth in the high-dose group of T-SA1-DM1. On the basis of the analysis of luminescence imaging, anti-HER2 scFv-HSA fusion antibodies, especially T-SA1, showed strong and rapid tumor tissue penetrability and distribution compared with trastuzumab. Collectively, the novel type of ADCs is effective and selective targeting to HER2-positive cancer, and may be a promising antitumor drug candidate for further studies.
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Affiliation(s)
- Hang Zhang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China.,Chengdu Rongsheng Pharmaceuticals Co., Ltd., Chengdu, China
| | - Yuxi Wang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Yangping Wu
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaohua Jiang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Yiran Tao
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Yuqin Yao
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China.,Research Center for Public Health and Preventive Medicine, West China School of Public, Health/No.4 West China Teaching Hospital, Sichuan University, Chengdu, China.,Guangdong Zhongsheng Pharmaceutical Co., Ltd., Dongguan, China
| | - Yujia Peng
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Xiangzheng Chen
- Department of Liver Surgery and Liver Transplantation Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yuyin Fu
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Lin Yu
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Ruixue Wang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Qinhuai Lai
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Weirong Lai
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Wenting Li
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Yuhuan Kang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Shuli Yi
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Ying Lu
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Lantu Gou
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Min Wu
- Department of Biomedical Sciences, University of North Dakota, School of Medicine and Health Sciences, Grand Forks, North Dakota, USA
| | - Jinliang Yang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China.,Guangdong Zhongsheng Pharmaceutical Co., Ltd., Dongguan, China
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9
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Gong G, Liu W, Wang S. Self-assembled albumin nanoparticles as a nanocarrier for aclacinomycin A. NANOTECHNOLOGY 2016; 27:465602. [PMID: 27749275 DOI: 10.1088/0957-4484/27/46/465602] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This study aimed to reduce the cytotoxicity and improve the targeting of aclacinomycin (ACM) by covalently coupling it with amino-oxyacetic acid (AOA) to generate an active intermediate, AOA-ACM. AOA-ACM was conjugated with self-assembled human serum albumin (HSA) nanoparticles constructed using tris(2-carboxyethyl)phosphine (TCEP) as disulfide bond breaking molecules in an 'opening stage-intermediate-closing stage' route, in which the hydrophobic interaction, interchange of sulfhydryl and hydrogen bond may be the key factors in the assembling process. Conjugation between ACM and albumin nanoparticles was found to occur at an ACM ketone site using 1H-NMR and 13C-NMR matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass analysis indicated that the drug loading efficiency of ACM conjugated with HSA nanoparticles (NPs-ACM) was 7.4% (molar ratio = 6:1). The release of NPs-ACM was pH dependent. In vivo studies indicated that NPs-ACM exhibited fourfold higher tumor targeting capability on S180-tumor-bearing mice compared with the free ACM (p < 0.05). The cytotoxictiy and cardiotoxicity of NPs-ACM was reduced compared with the free ACM. Albumin carrier altered the blood pharmacokinetics and distribution of ACM. Hence, the NPs-ACM prodrug is ideal tumor targeting drug carriers for ACM, and the easy approach developed in this study for active intermediate and prodrug preparation can be applied to other pharmacological substances containing ketone groups. The method of preparing HSA-blank nanoparticles through TCEP reduction could be adopted to improve the water solubility of lipophilic drugs and their tumor-targeting specificity by fabricating HSA-lipophilic drug nanoparticles.
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Affiliation(s)
- Guangming Gong
- Department of Pharmaceutics, Jinling Hospital, Nanjing University School of Medicine, Nanjing 210002, People's Republic of China
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Wong KE, Mora MC, Skinner M, McRae Page S, Crisi GM, Arenas RB, Schneider SS, Emrick T. Evaluation of PolyMPC–Dox Prodrugs in a Human Ovarian Tumor Model. Mol Pharm 2016; 13:1679-87. [DOI: 10.1021/acs.molpharmaceut.6b00092] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kaitlyn E. Wong
- Pioneer Valley Life Sciences Institute, 3601 Main Street, Springfield, Massachusetts 01199, United States
- Baystate Medical Center, 759 Chestnut
Street, Springfield, Massachusetts 01199, United States
| | - Maria C. Mora
- Pioneer Valley Life Sciences Institute, 3601 Main Street, Springfield, Massachusetts 01199, United States
- Baystate Medical Center, 759 Chestnut
Street, Springfield, Massachusetts 01199, United States
| | - Matthew Skinner
- Polymer Science & Engineering Department, University of Massachusetts, 120 Governors Drive, Amherst, Massachusetts 01003, United States
| | - Samantha McRae Page
- Polymer Science & Engineering Department, University of Massachusetts, 120 Governors Drive, Amherst, Massachusetts 01003, United States
| | - Giovanna M. Crisi
- Baystate Medical Center, 759 Chestnut
Street, Springfield, Massachusetts 01199, United States
| | - Richard B. Arenas
- Pioneer Valley Life Sciences Institute, 3601 Main Street, Springfield, Massachusetts 01199, United States
- Baystate Medical Center, 759 Chestnut
Street, Springfield, Massachusetts 01199, United States
| | - Sallie S. Schneider
- Pioneer Valley Life Sciences Institute, 3601 Main Street, Springfield, Massachusetts 01199, United States
| | - Todd Emrick
- Polymer Science & Engineering Department, University of Massachusetts, 120 Governors Drive, Amherst, Massachusetts 01003, United States
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Liu Z, Chen X. Simple bioconjugate chemistry serves great clinical advances: albumin as a versatile platform for diagnosis and precision therapy. Chem Soc Rev 2016; 45:1432-56. [PMID: 26771036 PMCID: PMC5227548 DOI: 10.1039/c5cs00158g] [Citation(s) in RCA: 282] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Albumin is the most abundant circulating protein in plasma and has recently emerged as a versatile protein carrier for drug targeting and for improving the pharmacokinetic profile of peptide or protein based drugs. Three drug delivery technologies related to albumin have been developed, which include the coupling of low-molecular weight drugs to exogenous or endogenous albumin, conjugating bioactive proteins by albumin fusion technology (AFT), and encapsulation of drugs into albumin nanoparticles. This review article starts with a brief introduction of human serum albumin (HSA), and then summarizes the mainstream chemical strategies of developing HSA binding molecules for coupling with drug molecules. Moreover, we also concisely condense the recent progress of the most important clinical applications of HSA-binding platforms, and specify the current challenges that need to be met for a bright future of HSA-binding.
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Affiliation(s)
- Zhibo Liu
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD 20892, USA.
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD 20892, USA.
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Abstract
INTRODUCTION Clinical use of SN38 is limited by its poor aqueous solubility and hydrolysis of the lactone ring at pH > 6 to inactive carboxylate form. A variety of drug delivery systems have been developed to improve the solubility and stability of SN38, and reduce its toxicity. A few noteworthy formulations with some success in initial phases of clinical trials are reported. AREAS COVERED This work aims to provide a comprehensive review on the various techniques and strategies employed (physical, chemical and biological methods) to improve physicochemical properties and to deliver the drug efficiently to the cancer cells. Physical methods such as nanoparticle encapsulation, cyclodextrin complexation; chemical methods such as prodrugs, polymer-, albumin- and immunoconjugates; and enzyme activated prodrug therapy are discussed. EXPERT OPINION The challenges in SN38 drug delivery may be overcome by two ways: ensuring multiple layers of protection against degradation and slow but sustained release of therapeutically effective drug concentrations. It may also be achieved by preparing a polymer-drug conjugate and further encapsulating the conjugate in suitable carrier system; tumor-targeted SN38 delivery by using immunoconjugates, enzyme-activated prodrug therapy and antibody-directed nanoparticle delivery. However, selection of a suitable ligand for tumor targeting and use of safe and biocompatible nanoparticle systems play an important role in realizing this goal.
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Affiliation(s)
- Srinath Palakurthi
- a Irma Lerma Rangel College of Pharmacy, Texas A&M Health Science Center, Department of Pharmaceutical Sciences , Kingsville, TX 78363, USA +1 3612210748 ; +1 3612210793 ;
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Protein– and Peptide–Drug Conjugates. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2015; 98:1-55. [DOI: 10.1016/bs.apcsb.2014.11.001] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Abstract
7-Ethyl-10-hydroxycamptothecin (SN38), the active metabolite of irinotecan, exerts a 100-fold to 1000-fold higher effect than irinotecan itself against several tumor cell lines. However, the water insolubility of SN38 has prevented its direct use as an antitumor drug in the clinic. To improve the water solubility and antitumor efficacy, SN38 was covalently attached to the only free sulfhydryl at cysteine-34 on the BSA site specifically through a thiol-binding linker to form a prodrug BSA-SN38 conjugate (BSA : SN38=1 : 1). The water solubility of this conjugate was similar to albumin using the current method. Also, SN38 loading in this conjugate became controllable. Size-exclusion chromatography purification and UV characterization of the SDS-PAGE electrophoresis product were carried out. Then, an MTT assay was carried out to test the antitumor effect of this conjugate on five colon cancer cell lines in vitro. The 72 h IC50 values of the BSA-SN38 conjugate ranged from 1.5 to 6.1 μmol/l. A colorectal peritoneal carcinomatosis model in mice was established to determine the intraperitoneal chemotherapy effect of the BSA-SN38 conjugate. The BSA-SN38 conjugate at an SN38 equivalent dose of 10 mg/kg/day was administrated every 4 days. Eighteen days after manipulation, the mice were euthanized and the tumors in the abdominal cavity were collected and weighed. Tumors in the BSA-SN38 conjugate treatment group (m=0.21 ± 0.15 g) were found to be significantly (P=5) lighter than those in the NS control group (m=4.74±0.73 g). The results indicated that this water-soluble BSA-SN38 conjugate exerted a strong antitumor effect on colorectal carcinoma.
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Yewale C, Baradia D, Vhora I, Misra A. Proteins: emerging carrier for delivery of cancer therapeutics. Expert Opin Drug Deliv 2013; 10:1429-48. [DOI: 10.1517/17425247.2013.805200] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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16
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Hochdörffer K, Abu Ajaj K, Schäfer-Obodozie C, Kratz F. Development of novel bisphosphonate prodrugs of doxorubicin for targeting bone metastases that are cleaved pH dependently or by cathepsin B: synthesis, cleavage properties, and binding properties to hydroxyapatite as well as bone matrix. J Med Chem 2012; 55:7502-15. [PMID: 22882004 DOI: 10.1021/jm300493m] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Bone metastases are a frequent cause of morbidity in cancer patients. The present palliative therapeutic options are chemotherapy, hormone therapy, and the administration of bisphosphonates. The affinity between bisphosphonates and the apatite structure of bone metastases is strong. Thus, we designed two low-molecular-weight and water-soluble prodrugs which incorporate a bisphosphonate group as a bone targeting ligand, doxorubicin as the anticancer agent, and either an acid-sensitive bond (1) or a cathepsin B cleavable bond (3) for ensuring an effective release of doxorubicin at the site of action. Cleavage studies of both prodrugs showed a fast release of doxorubicin but sufficient stability over several hours in human plasma. Effective binding of prodrug 1 and 3 was demonstrated with hydroxyapatite and with native bone. In orientating toxicity studies in nude mice, the MTD of 1 was 3-fold higher compared to conventional doxorubicin, whereas 3 showed essentially the same MTD as doxorubicin.
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Affiliation(s)
- Katrin Hochdörffer
- Division of Macromolecular Prodrugs, Tumor Biology Center, Breisacher Strasse 117, 79106 Freiburg, Germany
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Ak G, Yurt Lambrecht F, Sanlier SH. Radiolabeling of folate targeted multifunctional conjugate with Technetium-99m and biodistribution studies in rats. J Drug Target 2012; 20:509-14. [DOI: 10.3109/1061186x.2012.686038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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18
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Choi KY, Swierczewska M, Lee S, Chen X. Protease-activated drug development. Am J Cancer Res 2012; 2:156-78. [PMID: 22400063 PMCID: PMC3296471 DOI: 10.7150/thno.4068] [Citation(s) in RCA: 190] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2012] [Accepted: 01/28/2012] [Indexed: 12/11/2022] Open
Abstract
In this extensive review, we elucidate the importance of proteases and their role in drug development in various diseases with an emphasis on cancer. First, key proteases are introduced along with their function in disease progression. Next, we link these proteases as targets for the development of prodrugs and provide clinical examples of protease-activatable prodrugs. Finally, we provide significant design considerations needed for the development of the next generation protease-targeted and protease-activatable prodrugs.
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Potential of amino acid/dipeptide monoester prodrugs of floxuridine in facilitating enhanced delivery of active drug to interior sites of tumors: a two-tier monolayer in vitro study. Pharm Res 2011; 28:2575-88. [PMID: 21671137 DOI: 10.1007/s11095-011-0485-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2010] [Accepted: 05/16/2011] [Indexed: 10/18/2022]
Abstract
PURPOSE To evaluate the advantages of amino acid/dipeptide monoester prodrugs for cancer treatments by assessing the uptake and cytotoxic effects of floxuridine prodrugs in a secondary cancer cell monolayer following permeation across a primary cancer cell monolayer. METHODS The first Capan-2 monolayer was grown on membrane transwell inserts; the second monolayer was grown at the bottom of a plate. The permeation of floxuridine and its prodrugs across the first monolayer and the uptake and cell proliferation assay on secondary layer were sequentially determined. RESULTS All floxuridine prodrugs exhibited greater permeation across the first Capan-2 monolayer than the parent drug. The correlation between uptake and growth inhibition in the second monolayer with intact prodrug permeating the first monolayer suggests that permeability and enzymatic stability are essential for sustained action of prodrugs in deeper layers of tumors. The correlation of uptake and growth inhibition were vastly superior for dipeptide prodrugs to those obtained with mono amino acid prodrugs. CONCLUSIONS Although a tentative general overall correlation between intact prodrug and uptake or cytotoxic action was obtained, it appears that a mixture of floxuridine prodrugs with varying beneficial characteristics may be more effective in treating tumors.
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Huang S, Fang R, Xu J, Qiu S, Zhang H, Du J, Cai S. Evaluation of the tumor targeting of a FAPα-based doxorubicin prodrug. J Drug Target 2011; 19:487-96. [PMID: 21284542 DOI: 10.3109/1061186x.2010.511225] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Fibroblast activation protein-α (FAPα) is a tumor-associated antigen uniquely expressed by reactive stromal fibroblasts in the majority of human epithelial tumors. FAPα also possesses both post-prolyl peptidase and endopeptidase activities. Consequently, FAPα is increasingly considered as a potential pan-tumor target for designing tumor-targeted prodrugs. We previously conjugated Doxorubicin (Dox) with a FAPα-specific dipeptide (Z-Gly-Pro) to develop a FAPα-targeting prodrug of Dox (FTPD). The aim of current work was to validate the tumor targeting of this targeted-delivery strategy. The results demonstrated that FTPD could effectually release Dox upon the hydrolysis of FAPα as well as the incubation with tumor homogenate of FAPα-positive tumor (4T1 tumor), while it was highly stable in mouse plasma and a variety of tissue homogenates including heart, liver, and so on. And the FAPα-cleaved FTPD exhibited significantly higher cytotoxicity against 4T1 cells in vitro than the uncatalyzed prodrug. Additionally, FTPD produced similar antitumor efficacy in 4T1 tumor-bearing mice to free Dox without obvious cardiotoxic effect. Moreover, subsequent study indicated that the accumulation of FTPD reduced significantly in the heart compared to free Dox. These findings suggest that such FAPα-based prodrug strategy is promising to achieve targeted delivery of antitumor agents.
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Affiliation(s)
- Sichao Huang
- Department of Clinical Pharmacology, College of Pharmacy, Jinan University, Guangzhou, PR China
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Elsadek B, Graeser R, Esser N, Schäfer-Obodozie C, Ajaj KA, Unger C, Warnecke A, Saleem T, El-Melegy N, Madkor H, Kratz F. Development of a novel prodrug of paclitaxel that is cleaved by prostate-specific antigen: An in vitro and in vivo evaluation study. Eur J Cancer 2010; 46:3434-44. [DOI: 10.1016/j.ejca.2010.08.018] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2010] [Accepted: 08/24/2010] [Indexed: 11/27/2022]
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22
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Elsadek B, Graeser R, Warnecke A, Unger C, Saleem T, El-Melegy N, Madkor H, Kratz F. Optimization of an albumin-binding prodrug of Doxorubicin that is cleaved by prostate-specific antigen. ACS Med Chem Lett 2010; 1:234-8. [PMID: 24900200 DOI: 10.1021/ml100060m] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2010] [Accepted: 05/03/2010] [Indexed: 11/28/2022] Open
Abstract
We have developed a novel albumin-binding prodrug of doxorubicin that incorporates p-aminobenzyloxycarbonyl (PABC) as a 1,6 self-immolative spacer in addition to the heptapeptide, Arg-Ser-Ser-Tyr-Tyr-Ser-Leu, as a substrate for the prostate-specific antigen (PSA) that is overexpressed in prostate carcinoma and represents a molecular target for selectively releasing an anticancer agent from a prodrug formulation. The prodrug exhibited good water solubility and was bound rapidly to the cysteine-34 position of human serum albumin. Incubation studies with PSA demonstrated that the albumin-bound form of the prodrug was cleaved rapidly at the P1-P1' scissile bond, releasing H-Ser-Leu-PABC-DOXO, which was further degraded to release doxorubicin as a final cleavage product within a few hours in prostate tumor tissue homogenates as well as in PSA-positive LNCaP LN cell lysates. Moreover, our prodrug exhibited antiproliferative activity in a low micromolar range against a PSA-expressing prostate cancer cell line (LNCaP).
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Affiliation(s)
- Bakheet Elsadek
- Tumor Biology Center, Division of Macromolecular Prodrugs, Breisacher Strasse 117, 79106 Freiburg, Germany
- Department of Biochemistry, Faculty of Pharmacy, Al-Azhar University, P.O. Box No. 71524, Assiut, Egypt
| | - Ralph Graeser
- ProQinase GmbH, Breisacher Strasse 117, 79106 Freiburg, Germany
| | - André Warnecke
- Tumor Biology Center, Division of Macromolecular Prodrugs, Breisacher Strasse 117, 79106 Freiburg, Germany
| | - Clemens Unger
- Tumor Biology Center, Division of Macromolecular Prodrugs, Breisacher Strasse 117, 79106 Freiburg, Germany
| | - Tahia Saleem
- Department of Biochemistry, Faculty of Medicine, Assiut University, P.O. Box No. 71526, Assiut, Egypt
| | - Nagla El-Melegy
- Department of Biochemistry, Faculty of Medicine, Assiut University, P.O. Box No. 71526, Assiut, Egypt
| | - Hafez Madkor
- Department of Biochemistry, Faculty of Pharmacy, Al-Azhar University, P.O. Box No. 71524, Assiut, Egypt
| | - Felix Kratz
- Tumor Biology Center, Division of Macromolecular Prodrugs, Breisacher Strasse 117, 79106 Freiburg, Germany
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Abu Ajaj K, Graeser R, Fichtner I, Kratz F. In vitro and in vivo study of an albumin-binding prodrug of doxorubicin that is cleaved by cathepsin B. Cancer Chemother Pharmacol 2009; 64:413-8. [DOI: 10.1007/s00280-009-0942-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2008] [Accepted: 01/16/2009] [Indexed: 10/21/2022]
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24
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Development of dual-acting prodrugs for circumventing multidrug resistance. Bioorg Med Chem Lett 2009; 19:995-1000. [DOI: 10.1016/j.bmcl.2008.11.063] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2008] [Revised: 11/17/2008] [Accepted: 11/18/2008] [Indexed: 11/19/2022]
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Ajaj KA, Biniossek ML, Kratz F. Development of Protein-Binding Bifunctional Linkers for a New Generation of Dual-Acting Prodrugs. Bioconjug Chem 2009; 20:390-6. [DOI: 10.1021/bc800429q] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Khalid Abu Ajaj
- Tumor Biology Center, Breisacher Strasse 117, 79106 Freiburg, and Institute of Molecular Medicine and Cell Research, Zentrum für Biochemie and Molekulare Zellforschung, Stefan-Meier-Strasse 17, 79104 Freiburg, Germany
| | - Martin L. Biniossek
- Tumor Biology Center, Breisacher Strasse 117, 79106 Freiburg, and Institute of Molecular Medicine and Cell Research, Zentrum für Biochemie and Molekulare Zellforschung, Stefan-Meier-Strasse 17, 79104 Freiburg, Germany
| | - Felix Kratz
- Tumor Biology Center, Breisacher Strasse 117, 79106 Freiburg, and Institute of Molecular Medicine and Cell Research, Zentrum für Biochemie and Molekulare Zellforschung, Stefan-Meier-Strasse 17, 79104 Freiburg, Germany
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26
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Ryppa C, Mann-Steinberg H, Fichtner I, Weber H, Satchi-Fainaro R, Biniossek ML, Kratz F. In Vitro and in Vivo Evaluation of Doxorubicin Conjugates with the Divalent Peptide E-[c(RGDfK)2] that Targets Integrin αvβ3. Bioconjug Chem 2008; 19:1414-22. [DOI: 10.1021/bc800117r] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Claudia Ryppa
- Tumor Biology Center, Breisacher Straβe 117, 79106 Freiburg, Federal Republic of Germany, Department of Physiology and Pharmacology, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 69978, Israel, Max-Delbrück Center, Robert-Rössle-Straβe 10, 13122 Berlin, ProQinase, Breisacher Straβe 117, 79106 Freiburg, and Institut für Molekulare Medizin and Zellforschung, Zentrum für Biochemie and Molekulare Zellforschung, Stefan-Meier-Straβe 17, 79104 Freiburg, Federal Republic of Germany
| | - Hagit Mann-Steinberg
- Tumor Biology Center, Breisacher Straβe 117, 79106 Freiburg, Federal Republic of Germany, Department of Physiology and Pharmacology, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 69978, Israel, Max-Delbrück Center, Robert-Rössle-Straβe 10, 13122 Berlin, ProQinase, Breisacher Straβe 117, 79106 Freiburg, and Institut für Molekulare Medizin and Zellforschung, Zentrum für Biochemie and Molekulare Zellforschung, Stefan-Meier-Straβe 17, 79104 Freiburg, Federal Republic of Germany
| | - Iduna Fichtner
- Tumor Biology Center, Breisacher Straβe 117, 79106 Freiburg, Federal Republic of Germany, Department of Physiology and Pharmacology, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 69978, Israel, Max-Delbrück Center, Robert-Rössle-Straβe 10, 13122 Berlin, ProQinase, Breisacher Straβe 117, 79106 Freiburg, and Institut für Molekulare Medizin and Zellforschung, Zentrum für Biochemie and Molekulare Zellforschung, Stefan-Meier-Straβe 17, 79104 Freiburg, Federal Republic of Germany
| | - Holger Weber
- Tumor Biology Center, Breisacher Straβe 117, 79106 Freiburg, Federal Republic of Germany, Department of Physiology and Pharmacology, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 69978, Israel, Max-Delbrück Center, Robert-Rössle-Straβe 10, 13122 Berlin, ProQinase, Breisacher Straβe 117, 79106 Freiburg, and Institut für Molekulare Medizin and Zellforschung, Zentrum für Biochemie and Molekulare Zellforschung, Stefan-Meier-Straβe 17, 79104 Freiburg, Federal Republic of Germany
| | - Ronit Satchi-Fainaro
- Tumor Biology Center, Breisacher Straβe 117, 79106 Freiburg, Federal Republic of Germany, Department of Physiology and Pharmacology, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 69978, Israel, Max-Delbrück Center, Robert-Rössle-Straβe 10, 13122 Berlin, ProQinase, Breisacher Straβe 117, 79106 Freiburg, and Institut für Molekulare Medizin and Zellforschung, Zentrum für Biochemie and Molekulare Zellforschung, Stefan-Meier-Straβe 17, 79104 Freiburg, Federal Republic of Germany
| | - Martin L. Biniossek
- Tumor Biology Center, Breisacher Straβe 117, 79106 Freiburg, Federal Republic of Germany, Department of Physiology and Pharmacology, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 69978, Israel, Max-Delbrück Center, Robert-Rössle-Straβe 10, 13122 Berlin, ProQinase, Breisacher Straβe 117, 79106 Freiburg, and Institut für Molekulare Medizin and Zellforschung, Zentrum für Biochemie and Molekulare Zellforschung, Stefan-Meier-Straβe 17, 79104 Freiburg, Federal Republic of Germany
| | - Felix Kratz
- Tumor Biology Center, Breisacher Straβe 117, 79106 Freiburg, Federal Republic of Germany, Department of Physiology and Pharmacology, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 69978, Israel, Max-Delbrück Center, Robert-Rössle-Straβe 10, 13122 Berlin, ProQinase, Breisacher Straβe 117, 79106 Freiburg, and Institut für Molekulare Medizin and Zellforschung, Zentrum für Biochemie and Molekulare Zellforschung, Stefan-Meier-Straβe 17, 79104 Freiburg, Federal Republic of Germany
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Kratz F. Albumin as a drug carrier: design of prodrugs, drug conjugates and nanoparticles. J Control Release 2008; 132:171-83. [PMID: 18582981 DOI: 10.1016/j.jconrel.2008.05.010] [Citation(s) in RCA: 1538] [Impact Index Per Article: 96.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2008] [Revised: 05/05/2008] [Accepted: 05/07/2008] [Indexed: 02/07/2023]
Abstract
Albumin is playing an increasing role as a drug carrier in the clinical setting. Principally, three drug delivery technologies can be distinguished: coupling of low-molecular weight drugs to exogenous or endogenous albumin, conjugation with bioactive proteins and encapsulation of drugs into albumin nanoparticles. The accumulation of albumin in solid tumors forms the rationale for developing albumin-based drug delivery systems for tumor targeting. Clinically, a methotrexate-albumin conjugate, an albumin-binding prodrug of doxorubicin, i.e. the (6-maleimido)caproylhydrazone derivative of doxorubicin (DOXO-EMCH), and an albumin paclitaxel nanoparticle (Abraxane) have been evaluated clinically. Abraxane has been approved for treating metastatic breast cancer. An alternative strategy is to bind a therapeutic peptide or protein covalently or physically to albumin to enhance its stability and half-life. This approach has been applied to peptides with antinociceptive, antidiabetes, antitumor or antiviral activity: Levemir, a myristic acid derivative of insulin that binds to the fatty acid binding sites of circulating albumin, has been approved for the treatment of diabetes. Furthermore, Albuferon, a fusion protein of albumin and interferon, is currently being assessed in phase III clinical trials for the treatment of hepatitis C and could become an alternative to pegylated interferon. This review gives an account of the different drug delivery systems which make use of albumin as a drug carrier with a focus on those systems that have reached an advanced stage of preclinical evaluation or that have entered clinical trials.
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Affiliation(s)
- Felix Kratz
- Head of Macromolecular Prodrugs, Tumor Biology Center, Breisacher Strasse 117, D-79106 Freiburg, Germany.
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Schmid B, Warnecke A, Fichtner I, Jung M, Kratz F. Development of Albumin-Binding Camptothecin Prodrugs Using a Peptide Positional Scanning Library. Bioconjug Chem 2007; 18:1786-99. [DOI: 10.1021/bc0700842] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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29
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Graeser R, Chung DE, Esser N, Moor S, Schächtele C, Unger C, Kratz F. Synthesis and biological evaluation of an albumin-binding prodrug of doxorubicin that is cleaved by prostate-specific antigen (PSA) in a PSA-positive orthotopic prostate carcinoma model (LNCaP). Int J Cancer 2007; 122:1145-54. [DOI: 10.1002/ijc.23050] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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30
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Warnecke A, Fichtner I, Sass G, Kratz F. Synthesis, Cleavage Profile, and Antitumor Efficacy of an Albumin-Binding Prodrug of Methotrexate that is Cleaved by Plasmin and Cathepsin B. Arch Pharm (Weinheim) 2007; 340:389-95. [PMID: 17628030 DOI: 10.1002/ardp.200700025] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Cathepsin B and plasmin are intra- or extracellular proteases that are overexpressed by several solid tumors. In order to exploit both proteases as molecular targets for tumor-specific cleavage of prodrugs, an albumin-binding formulation of methotrexate was developed that incorporated the peptide sequence D-Ala-Phe-Lys as the protease substrate. Albumin is a suitable carrier for cytostatic agents due to passive accumulation in solid tumors. Synthesis was performed by coupling the peptide linker EMC-D-Ala-Phe-Lys(Boc)-Lys-OH (EMC = epsilon-maleimidocaproic acid) to the gamma-COOH group of alpha-tert-butyl protected methotrexate. After cleavage of the protective groups and purification on reverse phase HPLC, a highly water-soluble methotrexate-peptide derivative was obtained that binds rapidly and selectively to human serum albumin. The albumin-bound form of the prodrug was shown to be efficiently cleaved by cathepsin B and plasmin as well as in an ovarian carcinoma homogenate (OVCAR-3) liberating a methotrexate-lysine derivative. In an OVCAR-3 xenograft model, the prodrug at a dose of 4x15 mg/kg methotrexate equivalents demonstrated distinctly superior antitumor efficacy compared to free methotrexate at a dose of 4x100 mg/kg [T/C(%) for MTX = 69; T/C(%) for MTX prodrug = 29]. The data provide a further proof of concept for the development of albumin-binding, enzymatically cleavable prodrugs of anticancer drugs.
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Chung DE, Kratz F. Development of a novel albumin-binding prodrug that is cleaved by urokinase-type-plasminogen activator (uPA). Bioorg Med Chem Lett 2006; 16:5157-63. [PMID: 16875815 DOI: 10.1016/j.bmcl.2006.07.023] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2006] [Revised: 07/06/2006] [Accepted: 07/06/2006] [Indexed: 10/24/2022]
Abstract
A water-soluble albumin-binding prodrug of doxorubicin [EMC-Gly-Gly-Gly-Arg-Arg-DOXO (EMC, 6-maleimidocaproic acid)] was developed that is cleaved specifically by the tumor-associated protease urokinase-type plasminogen activator (uPA).
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Affiliation(s)
- Da-Eun Chung
- Tumor Biology Center, Breisacher Strasse 117, 79106 Freiburg, Germany
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Le Sann C. Maleimide spacers as versatile linkers in the synthesis of bioconjugates of anthracyclines. Nat Prod Rep 2006; 23:357-67. [PMID: 16741584 DOI: 10.1039/b600666n] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Christine Le Sann
- School of Chemistry and Chemical Engineering, David Keir Building, Queen's University Belfast, Northern Ireland.
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