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Chauhan P, V R, Kumar M, Molla R, Mishra SD, Basa S, Rai V. Chemical technology principles for selective bioconjugation of proteins and antibodies. Chem Soc Rev 2024; 53:380-449. [PMID: 38095227 DOI: 10.1039/d3cs00715d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Proteins are multifunctional large organic compounds that constitute an essential component of a living system. Hence, control over their bioconjugation impacts science at the chemistry-biology-medicine interface. A chemical toolbox for their precision engineering can boost healthcare and open a gateway for directed or precision therapeutics. Such a chemical toolbox remained elusive for a long time due to the complexity presented by the large pool of functional groups. The precise single-site modification of a protein requires a method to address a combination of selectivity attributes. This review focuses on guiding principles that can segregate them to simplify the task for a chemical method. Such a disintegration systematically employs a multi-step chemical transformation to deconvolute the selectivity challenges. It constitutes a disintegrate (DIN) theory that offers additional control parameters for tuning precision in protein bioconjugation. This review outlines the selectivity hurdles faced by chemical methods. It elaborates on the developments in the perspective of DIN theory to demonstrate simultaneous regulation of reactivity, chemoselectivity, site-selectivity, modularity, residue specificity, and protein specificity. It discusses the progress of such methods to construct protein and antibody conjugates for biologics, including antibody-fluorophore and antibody-drug conjugates (AFCs and ADCs). It also briefs how this knowledge can assist in developing small molecule-based covalent inhibitors. In the process, it highlights an opportunity for hypothesis-driven routes to accelerate discoveries of selective methods and establish new targetome in the precision engineering of proteins and antibodies.
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Affiliation(s)
- Preeti Chauhan
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, 462 066, India.
| | - Ragendu V
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, 462 066, India.
| | - Mohan Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, 462 066, India.
| | - Rajib Molla
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, 462 066, India.
| | - Surya Dev Mishra
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, 462 066, India.
| | - Sneha Basa
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, 462 066, India.
| | - Vishal Rai
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, 462 066, India.
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Dong H, Huang X, Wu X. Development of a novel sialic acid-conjugated camptothecin prodrug for enhanced cancer chemotherapy. Biomater Sci 2023; 11:6160-6166. [PMID: 37548235 DOI: 10.1039/d3bm01072d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Camptothecin (CPT) is an attractive natural drug for cancer chemotherapy. However, the poor water solubility, non-targeting feature, and adverse side effects of CPT are significant obstacles to developing an effective anticancer drug. Here, for the first time, 9-thiol-sialic acid (9-SH-Sia) is coupled to CPT by forming a disulfide releasable carbonate linkage, resulting in a novel CPT prodrug (CPT-ss-Sia) that self-assembles into nanostructures in an aqueous solution. Strikingly, CPT-ss-Sia exhibited excellent in vitro properties, including enhanced water solubility, glutathione (GSH)-triggered CPT release, and increased E-lactone ring stability. Furthermore, CPT-ss-Sia had good cancer cell-killing ability comparable to CPT. Intravenous administration of CPT-ss-Sia significantly inhibited the growth of multiple types of tumors. Histological analysis showed that CPT-ss-Sia treatment significantly reduced lesions in tumor-bearing mice compared to CPT treatment. Notably, CPT-ss-Sia treatment did not adversely affect the body weight of the mice. This is the first report of the 9-SH-Sia conjugate-based prodrug. Overall, CPT-ss-Sia has broad clinical application prospects.
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Affiliation(s)
- Huiling Dong
- National Glycoengineering Research Center and Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate-based Medicine, Shandong University, Qingdao, Shandong 266237, China.
| | - Xuefei Huang
- Departments of Chemistry and Biomedical Engineering, Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, Michigan 48824, USA
| | - Xuanjun Wu
- National Glycoengineering Research Center and Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate-based Medicine, Shandong University, Qingdao, Shandong 266237, China.
- Suzhou Research Institute, Shandong University, Suzhou, Jiangsu 215123, China
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Strzelecka K, Piotrowska U, Sobczak M, Oledzka E. The Advancement of Biodegradable Polyesters as Delivery Systems for Camptothecin and Its Analogues-A Status Report. Int J Mol Sci 2023; 24:ijms24021053. [PMID: 36674567 PMCID: PMC9866533 DOI: 10.3390/ijms24021053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 12/29/2022] [Accepted: 01/03/2023] [Indexed: 01/06/2023] Open
Abstract
Camptothecin (CPT) has demonstrated antitumor activity in lung, ovarian, breast, pancreas, and stomach cancers. However, this drug, like many other potent anticancer agents, is extremely water-insoluble. Furthermore, pharmacology studies have revealed that prolonged schedules must be administered continuously. For these reasons, several of its water-soluble analogues, prodrugs, and macromolecular conjugates have been synthesized, and various formulation approaches have been investigated. Biodegradable polyesters have gained popularity in cancer treatment in recent years. A number of biodegradable polymeric drug delivery systems (DDSs), designed for localized and systemic administration of therapeutic agents, as well as tumor-targeting macromolecules, have entered clinical trials, demonstrating the importance of biodegradable polyesters in cancer therapy. Biodegradable polyester-based DDSs have the potential to deliver the payload to the target while also increasing drug availability at intended site. The systemic toxicity and serious side-effects associated with conventional cancer therapies can be significantly reduced with targeted polymeric systems. This review elaborates on the use of biodegradable polyesters in the delivery of CPT and its analogues. The design of various DDSs based on biodegradable polyesters has been described, with the drug either adsorbed on the polymer's surface or encapsulated within its macrostructure, as well as those in which a hydrolyzed chemical bond is formed between the active substance and the polymer chain. The data related to the type of DDSs, the kind of linkage, and the details of in vitro and in vivo studies are included.
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Affiliation(s)
- Katarzyna Strzelecka
- Department of Analytical Chemistry and Biomaterials, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha Str., 02-097 Warsaw, Poland
| | - Urszula Piotrowska
- Department of Analytical Chemistry and Biomaterials, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha Str., 02-097 Warsaw, Poland
| | - Marcin Sobczak
- Department of Analytical Chemistry and Biomaterials, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha Str., 02-097 Warsaw, Poland
- Military Institute of Hygiene and Epidemiology, 4 Kozielska Str., 01-163 Warsaw, Poland
| | - Ewa Oledzka
- Department of Analytical Chemistry and Biomaterials, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha Str., 02-097 Warsaw, Poland
- Correspondence: ; Tel.: +48-22-572-07-55
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The Research Advances of Aptamers in Hematologic Malignancies. Cancers (Basel) 2023; 15:cancers15010300. [PMID: 36612296 PMCID: PMC9818631 DOI: 10.3390/cancers15010300] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/28/2022] [Accepted: 12/28/2022] [Indexed: 01/03/2023] Open
Abstract
Currently, research for hematological malignancies is very intensive, with many breakthroughs. Among them, aptamer-based targeted therapies could be counted. Aptamer is a targeting tool with many unique advantages (easy synthesis, low toxicity, easy modification, low immunogenicity, nano size, long stability, etc.), therefore many experts screened corresponding aptamers in various hematological malignancies for diagnosis and treatment. In this review, we try to summarize and provide the recent progress of aptamer research in the diagnosis and treatment of hematologic malignancies. Until now, 29 aptamer studies were reported in hematologic malignancies, of which 12 aptamers were tested in vivo and the remaining 17 aptamers were only tested in vitro. In this case, 11 aptamers were combined with chemotherapeutic drugs for the treatment of hematologic malignancies, 4 aptamers were used in combination with nanomaterials for the diagnosis and treatment of hematologic malignancies, and some studies used aptamers for the targeted transportation of siRNA and miRNA for targeted therapeutic effects. Their research provides multiple approaches to achieve more targeted goals. These findings show promising and encouraging future for both hematological malignancies basic and clinical trials research.
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Lamble AJ, Eidenschink Brodersen L, Alonzo TA, Wang J, Pardo L, Sung L, Cooper TM, Kolb EA, Aplenc R, Tasian SK, Loken MR, Meshinchi S. CD123 Expression Is Associated With High-Risk Disease Characteristics in Childhood Acute Myeloid Leukemia: A Report From the Children's Oncology Group. J Clin Oncol 2022; 40:252-261. [PMID: 34855461 PMCID: PMC8769096 DOI: 10.1200/jco.21.01595] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
PURPOSE Increased CD123 surface expression has been associated with high-risk disease characteristics in adult acute myeloid leukemia (AML), but has not been well-characterized in childhood AML. In this study, we defined CD123 expression and associated clinical characteristics in a uniformly treated cohort of pediatric patients with newly diagnosed AML enrolled on the Children's Oncology Group AAML1031 phase III trial (NCT01371981). MATERIALS AND METHODS AML blasts within diagnostic bone marrow specimens (n = 1,040) were prospectively analyzed for CD123 protein expression by multidimensional flow cytometry immunophenotyping at a central clinical laboratory. Patients were stratified as low-risk or high-risk on the basis of (1) leukemia-associated cytogenetic and molecular alterations and (2) end-of-induction measurable residual disease levels. RESULTS The study population was divided into CD123 expression-based quartiles (n = 260 each) for analysis. Those with highest CD123 expression (quartile 4 [Q4]) had higher prevalence of high-risk KMT2A rearrangements and FLT3-ITD mutations (P < .001 for both) and lower prevalence of low-risk t(8;21), inv(16), and CEBPA mutations (P < .001 for all). Patients in lower CD123 expression quartiles (Q1-3) had similar relapse risk, event-free survival, and overall survival. Conversely, Q4 patients had a significantly higher relapse risk (53% v 39%, P < .001), lower event-free survival (49% v 69%, P < .001), and lower overall survival (32% v 50%, P < .001) in comparison with Q1-3 patients. CD123 maintained independent significance for outcomes when all known contemporary high-risk cytogenetic and molecular markers were incorporated into multivariable Cox regression analysis. CONCLUSION CD123 is strongly associated with disease-relevant cytogenetic and molecular alterations in childhood AML. CD123 is a critical biomarker and promising immunotherapeutic target for children with relapsed or refractory AML, given its prevalent expression and enrichment in patients with high-risk genetic alterations and inferior clinical outcomes with conventional therapy.
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Affiliation(s)
- Adam J. Lamble
- Division of Hematology/Oncology, Seattle Children's Hospital, University of Washington, Seattle, WA,Adam J. Lamble, MD, University of Washington–Seattle Children's Hospital, M/S MB.8.501, PO Box 5371, Seattle, WA 98145-5005; e-mail:
| | | | - Todd A. Alonzo
- Children's Oncology Group, Monrovia, CA,University of Southern California, Keck School of Medicine, Los Angeles, CA
| | - Jim Wang
- Children's Oncology Group, Monrovia, CA
| | | | - Lillian Sung
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, CA
| | - Todd M. Cooper
- Division of Hematology/Oncology, Seattle Children's Hospital, University of Washington, Seattle, WA
| | - E. Anders Kolb
- Division of Oncology, Nemours/Alfred I. Dupont Hospital for Children, Wilmington, DE
| | - Richard Aplenc
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA,Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - Sarah K. Tasian
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA,Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | | | - Soheil Meshinchi
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
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Zhang X, Zhang C, Yang X, Hou X, Zhao W, Benson D, Yu J, Dong Y. Design, synthesis and evaluation of anti-CD38 antibody drug conjugate based on Daratumumab and maytansinoid. Bioorg Med Chem 2019; 27:479-482. [PMID: 30594452 PMCID: PMC6339845 DOI: 10.1016/j.bmc.2018.12.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 12/13/2018] [Accepted: 12/14/2018] [Indexed: 11/29/2022]
Abstract
Daratumumab, an FDA approved antibody drug, displays specific targeting ability to abnormal white blood cells overexpressing CD38 and provides efficacious therapy for multiple myeloma. Here, in order to achieve enhanced remission of multiple myeloma, we designed Dara-DM4, antibody drug conjugates (ADCs) by conjugating Daratumumab and DM4 via a disulfide linker. Dara-DM4 showed significantly higher cellular uptake and inhibitory efficacy on MM1S cells that overexpressing CD38 with an IC50 of 0.88 µg/mL post 72 hr treatment. These results support a promising ADCs strategy for multiple myeloma treatment.
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Affiliation(s)
- Xinfu Zhang
- Division of Pharmaceutics & Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States; State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Chengxiang Zhang
- Division of Pharmaceutics & Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
| | - Xiaomei Yang
- Department of Hematology & Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, CA 91010, United States
| | - Xucheng Hou
- Division of Pharmaceutics & Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
| | - Weiyu Zhao
- Division of Pharmaceutics & Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
| | - Don Benson
- Division of Hematology, Department of Medicine, College of Medicine, The Ohio State University, Columbus, OH 43210, United States
| | - Jianhua Yu
- Department of Hematology & Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, CA 91010, United States; Hematologic Malignancies and Stem Cell Transplantation Institute, City of Hope National Medical Center, Duarte, CA 91010, United States.
| | - Yizhou Dong
- Division of Pharmaceutics & Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States; The Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, United States; Department of Biomedical Engineering, The Ohio State University, Columbus, OH 43210, United States; The Center for Clinical and Translational Science, The Ohio State University, Columbus, OH 43210, United States; Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University, Columbus, OH 43210, United States; Department of Radiation Oncology, The Ohio State University, Columbus, OH 43210, United States.
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Abdollahpour-Alitappeh M, Razavi-Vakhshourpour S, Abolhassani M. Development of a new anti-CD123 monoclonal antibody to target the human CD123 antigen as an acute myeloid leukemia cancer stem cell biomarker. Biotechnol Appl Biochem 2018; 65:841-847. [PMID: 29972607 DOI: 10.1002/bab.1681] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 02/15/2018] [Accepted: 04/09/2018] [Indexed: 01/20/2023]
Abstract
Acute myeloid leukemia (AML) is a clonal hematologic malignancy arising from a small population of leukemic cells initiating the disease. CD123 is differentially expressed in AML blasts compared with normal hematopoietic stem and progenitor cells. The aim of this study was to develop specific monoclonal antibodies (mAbs) directed against AML. Three BALB/c mice were immunized with the human CD123 antigen, and the immune spleen cells were fused with the SP2/0 myeloma cell line. Hybridomas were screened by indirect enzyme-linked immunosorbent assay (ELISA), and the positive hybrids were cloned by limiting dilution. The mAb isotype was determined, ascitic fluids were produced, and antibodies were purified using Fast protein liquid chromatography (Sephacryl S-200). The specificity of the hybridomas was examined by ELISA, cell-based ELISA, and flow cytometry. After three rounds of cell cloning, four anti-CD123 secreting hybridomas were obtained with the IgM isotype. Among them, one stable hybrid, designated sC1, exhibited the higher ability to recognize the CD123 antigen, as compared with the other hybridomas. Our results showed that sC1 has the ability to bind specifically to the CD123 antigen (41.36%) on the cell surface. The anti-CD123 mAb produced in this study may be useful for the development of both diagnostic and therapeutic purposes for AML.
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Affiliation(s)
| | | | - Mohsen Abolhassani
- Hybridoma Lab, Immunology Department, Pasteur Institute of Iran, Tehran, Iran
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Role of the β Common (βc) Family of Cytokines in Health and Disease. Cold Spring Harb Perspect Biol 2018; 10:cshperspect.a028514. [PMID: 28716883 DOI: 10.1101/cshperspect.a028514] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The β common ([βc]/CD131) family of cytokines comprises granulocyte macrophage colony-stimulating factor (GM-CSF), interleukin (IL)-3, and IL-5, all of which use βc as their key signaling receptor subunit. This is a prototypic signaling subunit-sharing cytokine family that has unveiled many biological paradigms and structural principles applicable to the IL-2, IL-4, and IL-6 receptor families, all of which also share one or more signaling subunits. Originally identified for their functions in the hematopoietic system, the βc cytokines are now known to be truly pleiotropic, impacting on multiple cell types, organs, and biological systems, and thereby controlling the balance between health and disease. This review will focus on the emerging biological roles for the βc cytokines, our progress toward understanding the mechanisms of receptor assembly and signaling, and the application of this knowledge to develop exciting new therapeutic approaches against human disease.
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Liu FR, Jin H, Wang Y, Chen C, Li M, Mao SJ, Wang Q, Li H. Anti-CD123 antibody-modified niosomes for targeted delivery of daunorubicin against acute myeloid leukemia. Drug Deliv 2017; 24:882-890. [PMID: 28574300 PMCID: PMC8244627 DOI: 10.1080/10717544.2017.1333170] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
A novel niosomal delivery system was designed and investigated for the targeted delivery of daunorubicin (DNR) against acute myeloid leukemia (AML). Anti-CD123 antibodies conjugated to Mal-PEG2000-DSPE were incorporated into normal niosomes (NS) via a post insertion method to afford antibody-modified niosomes (CD123-NS). Next, NS was modified with varying densities of antibody (0.5 or 2%, antibody/Span 80, molar ratio), thus providing L-CD123-NS and H-CD123-NS. We studied the effect of antibody density on the uptake efficiency of niosomes in NB4 and THP-1 cells, on which CD123 express differently. Our results demonstrate CD123-NS showed significantly higher uptake efficiency than NS in AML cells, and the uptake efficiency of CD123-NS has been ligand density-dependent. Also, AML cells preincubated with anti-CD123 antibody showed significantly reduced cellular uptake of CD123-NS compared to control. Further study on the uptake mechanism confirmed a receptor-mediated endocytic process. Daunorubicin (DNR)-loaded H-CD123-NS demonstrated a 2.45- and 3.22-fold higher cytotoxicity, compared to DNR-loaded NS in NB4 and THP-1 cells, respectively. Prolonged survival time were observed in leukemic mice treated with DNR-H-CD123-NS. Collectively, these findings support that the CD123-NS represent a promising delivery system for the treatment of AML.
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Affiliation(s)
- Fu-Rong Liu
- a Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education and West China School of Pharmacy , Sichuan University , Chengdu , China
| | - Hui Jin
- a Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education and West China School of Pharmacy , Sichuan University , Chengdu , China
| | - Yin Wang
- a Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education and West China School of Pharmacy , Sichuan University , Chengdu , China
| | - Chen Chen
- a Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education and West China School of Pharmacy , Sichuan University , Chengdu , China
| | - Ming Li
- a Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education and West China School of Pharmacy , Sichuan University , Chengdu , China
| | - Sheng-Jun Mao
- a Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education and West China School of Pharmacy , Sichuan University , Chengdu , China
| | - Qiantao Wang
- a Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education and West China School of Pharmacy , Sichuan University , Chengdu , China
| | - Hui Li
- b Department of Hematology , Sichuan Academy of Medical Sciences and Sichuan Provincial People Hospital , Chengdu , China
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Wu H, Wang M, Dai B, Zhang Y, Yang Y, Li Q, Duan M, Zhang X, Wang X, Li A, Zhang L. Novel CD123-aptamer-originated targeted drug trains for selectively delivering cytotoxic agent to tumor cells in acute myeloid leukemia theranostics. Drug Deliv 2017; 24:1216-1229. [PMID: 28845698 PMCID: PMC8241133 DOI: 10.1080/10717544.2017.1367976] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 08/10/2017] [Accepted: 08/11/2017] [Indexed: 12/21/2022] Open
Abstract
Since conventional chemotherapy for acute myeloid leukemia (AML) has its limitations, a theranostic platform with targeted and efficient drug transport is in demand. In this study, we developed the first CD123 (AML tumor marker) aptamers and designed a novel CD123-aptamer-mediated targeted drug train (TDT) with effective, economical, biocompatible and high drug-loading capacity. These two CD123 aptamers (termed as ZW25 and CY30, respectively) can bind to a CD123 peptide epitope and CD123 + AML cells with high specificities and KD of 29.41 nM and 15.38 nM, respectively, while has minimal cross reactivities to albumin, IgG and trypsin. Further, TDT is self-assembled from two short primers by ligand-modified ZW25 that acted as initiation position for elongation, while intercalated by doxorubicin (Dox). TDT is capable of transporting high capacity of Dox to CD123 + cells and retains the efficacy of Dox, while significantly reducing drug uptake and eased toxicity to CD123- cells in vitro (p < .01). Moreover, TDT can ease Dox cytoxicity to normal tissues, prolong survivals and inhibit tumor growth of mouse xenograft tumor model in vivo. These suggest that CD123 aptamer and CD123 aptamer-mediated targeted drug delivery system may have potential applications for selective delivery cytotoxic agents to CD123-expressing tumors in AML theranostics.
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Affiliation(s)
- Haibin Wu
- Shaanxi Institute of Pediatric Diseases, Xi’an Children’s Hospital, Xi’an, Shaanxi, People’s Republic of China
- Key laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, People’s Republic of China
| | - Meng Wang
- Department of Orthopedics, The No.11 Hospital of PLA, YiNing, XinJiang, People’s Republic of China
| | - Bo Dai
- Shaanxi Center for Stem Cell Application Engineering Research, Xi’an, Shaanxi, People’s Republic of China
- Shaanxi Key Laboratory of Ischemic Cardiovascular Disease, Institute of Basic and Translational Medicine, Xi’an Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Yanmin Zhang
- Shaanxi Institute of Pediatric Diseases, Xi’an Children’s Hospital, Xi’an, Shaanxi, People’s Republic of China
| | - Ying Yang
- Shaanxi Institute of Pediatric Diseases, Xi’an Children’s Hospital, Xi’an, Shaanxi, People’s Republic of China
| | - Qiao Li
- Clinical Laboratory, Xi’an Children’s Hospital, Xi’an, Shaanxi, People’s Republic of China
| | - Mingyue Duan
- Shaanxi Institute of Pediatric Diseases, Xi’an Children’s Hospital, Xi’an, Shaanxi, People’s Republic of China
| | - Xi Zhang
- Shaanxi Institute of Pediatric Diseases, Xi’an Children’s Hospital, Xi’an, Shaanxi, People’s Republic of China
| | - Xiaomei Wang
- Shaanxi Institute of Pediatric Diseases, Xi’an Children’s Hospital, Xi’an, Shaanxi, People’s Republic of China
| | - Anmao Li
- Shaanxi Institute of Pediatric Diseases, Xi’an Children’s Hospital, Xi’an, Shaanxi, People’s Republic of China
| | - Liyu Zhang
- Shaanxi Institute of Pediatric Diseases, Xi’an Children’s Hospital, Xi’an, Shaanxi, People’s Republic of China
- Key laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, People’s Republic of China
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