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Abstract
The nitrogen mustards are powerful cytotoxic and lymphoablative agents and have been used for more than 60 years. They are employed in the treatment of cancers, sarcomas, and hematologic malignancies. Cyclophosphamide, the most versatile of the nitrogen mustards, also has a place in stem cell transplantation and the therapy of autoimmune diseases. Adverse effects caused by the nitrogen mustards on the central nervous system, kidney, heart, bladder, and gonads remain important issues. Advances in analytical techniques have facilitated the investigation of the pharmacokinetics of the nitrogen mustards, especially the oxazaphosphorines, which are prodrugs requiring metabolic activation. Enzymes involved in the metabolism of cyclophosphamide and ifosfamide are very polymorphic, but a greater understanding of the pharmacogenomic influences on their activity has not yet translated into a personalized medicine approach. In addition to damaging DNA, the nitrogen mustards can act through other mechanisms, such as antiangiogenesis and immunomodulation. The immunomodulatory properties of cyclophosphamide are an area of current exploration. In particular, cyclophosphamide decreases the number and activity of regulatory T cells, and the interaction between cyclophosphamide and the intestinal microbiome is now recognized as an important factor. New derivatives of the nitrogen mustards continue to be assessed. Oxazaphosphorine analogs have been synthesized in attempts to both improve efficacy and reduce toxicity, with varying degrees of success. Combinations of the nitrogen mustards with monoclonal antibodies and small-molecule targeted agents are being evaluated. SIGNIFICANCE STATEMENT: The nitrogen mustards are important, well-established therapeutic agents that are used to treat a variety of diseases. Their role is continuing to evolve.
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Affiliation(s)
- Martin S Highley
- Plymouth Oncology Centre, Derriford Hospital, and Peninsula Medical School, University of Plymouth, Plymouth, United Kingdom (M.S.H.); Department of Animal Physiology and Neurobiology (B.L.) and Laboratory for Experimental Oncology (E.A.D.B.), University of Leuven, Leuven, Belgium; Oncology Department, University Hospital Antwerp, Edegem, Belgium (H.P.); and London Oncology Clinic, London, United Kingdom (P.G.H.)
| | - Bart Landuyt
- Plymouth Oncology Centre, Derriford Hospital, and Peninsula Medical School, University of Plymouth, Plymouth, United Kingdom (M.S.H.); Department of Animal Physiology and Neurobiology (B.L.) and Laboratory for Experimental Oncology (E.A.D.B.), University of Leuven, Leuven, Belgium; Oncology Department, University Hospital Antwerp, Edegem, Belgium (H.P.); and London Oncology Clinic, London, United Kingdom (P.G.H.)
| | - Hans Prenen
- Plymouth Oncology Centre, Derriford Hospital, and Peninsula Medical School, University of Plymouth, Plymouth, United Kingdom (M.S.H.); Department of Animal Physiology and Neurobiology (B.L.) and Laboratory for Experimental Oncology (E.A.D.B.), University of Leuven, Leuven, Belgium; Oncology Department, University Hospital Antwerp, Edegem, Belgium (H.P.); and London Oncology Clinic, London, United Kingdom (P.G.H.)
| | - Peter G Harper
- Plymouth Oncology Centre, Derriford Hospital, and Peninsula Medical School, University of Plymouth, Plymouth, United Kingdom (M.S.H.); Department of Animal Physiology and Neurobiology (B.L.) and Laboratory for Experimental Oncology (E.A.D.B.), University of Leuven, Leuven, Belgium; Oncology Department, University Hospital Antwerp, Edegem, Belgium (H.P.); and London Oncology Clinic, London, United Kingdom (P.G.H.)
| | - Ernst A De Bruijn
- Plymouth Oncology Centre, Derriford Hospital, and Peninsula Medical School, University of Plymouth, Plymouth, United Kingdom (M.S.H.); Department of Animal Physiology and Neurobiology (B.L.) and Laboratory for Experimental Oncology (E.A.D.B.), University of Leuven, Leuven, Belgium; Oncology Department, University Hospital Antwerp, Edegem, Belgium (H.P.); and London Oncology Clinic, London, United Kingdom (P.G.H.)
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Zhang Y, Wang Y, Xin Q, Li M, Yu P, Luo J, Xu X, Chen X, Li J. Zwitterionic choline phosphate conjugated folate-poly (ethylene glycol): a general decoration of erythrocyte membrane-coated nanoparticles for enhanced tumor-targeting drug delivery. J Mater Chem B 2022; 10:2497-2503. [PMID: 35019930 DOI: 10.1039/d1tb02493k] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Erythrocyte membrane nanosystems have become one of the important research directions of disease treatment, especially for tumor treatment, and can enhance the long circulation time of anti-cancer drugs in vivo, and penetrate and accumulate in the tumor site effectively. However, erythrocyte membranes lack targeting properties and it is necessary to provide tumor-targeting function by modifying erythrocyte membranes. In this study, we report on a novel modification method of an erythrocyte membrane nanosystem to target tumors. Specifically, the tumor-targeting molecule folate-poly (ethylene glycol) (FA-PEG) was modified with a zwitterionic 2-(methyl acryloyoxy) ethyl choline phosphate (MCP) by the Michael addition reaction to obtain MCP-modified FA-PEG (MCP-PEG-FA). Based on the strong "N-P" tetravalent electrostatic interaction between MCP and phosphatidyl choline on the erythrocyte membranes, MCP-PEG-FA can be modified on the erythrocyte membrane encapsulated doxorubicin (DOX) loaded poly(lactic-co-glycolic acid) (PLGA) nanosystem to form a tumor-targeting erythrocyte membrane nanosystem (FA-RBC@PLGA-DOX). The results show that MCP-PEG-FA was synthesized and successfully bonded to the erythrocyte membrane nanosystem, and the FA-RBC@PLGA-DOX nanosystem had a better tumor-targeting function and tumor killing effect compared with those of the nanosystems without FA ligand modification. The universal modification method of erythrocyte membranes is successfully provided and can be applied to the treatment of various diseases.
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Affiliation(s)
- Yuyue Zhang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Yuemin Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Qiangwei Xin
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Mingjing Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Peng Yu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Jun Luo
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Xinyuan Xu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Xingyu Chen
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China. .,College of Medicine, Southwest Jiaotong University, Chengdu, 610003, China
| | - Jianshu Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
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Nozohouri S, Sifat AE, Vaidya B, Abbruscato TJ. Novel approaches for the delivery of therapeutics in ischemic stroke. Drug Discov Today 2020; 25:535-551. [PMID: 31978522 DOI: 10.1016/j.drudis.2020.01.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/20/2019] [Accepted: 01/15/2020] [Indexed: 02/06/2023]
Abstract
Here, we review novel approaches to deliver neuroprotective drugs to salvageable penumbral brain areas of stroke injury with the goals of offsetting ischemic brain injury and enhancing recovery.
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Affiliation(s)
- Saeideh Nozohouri
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA
| | - Ali Ehsan Sifat
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA
| | - Bhuvaneshwar Vaidya
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA.
| | - Thomas J Abbruscato
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA.
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Shergalis A, Bankhead A, Luesakul U, Muangsin N, Neamati N. Current Challenges and Opportunities in Treating Glioblastoma. Pharmacol Rev 2018; 70:412-445. [PMID: 29669750 PMCID: PMC5907910 DOI: 10.1124/pr.117.014944] [Citation(s) in RCA: 469] [Impact Index Per Article: 78.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Glioblastoma multiforme (GBM), the most common and aggressive primary brain tumor, has a high mortality rate despite extensive efforts to develop new treatments. GBM exhibits both intra- and intertumor heterogeneity, lending to resistance and eventual tumor recurrence. Large-scale genomic and proteomic analysis of GBM tumors has uncovered potential drug targets. Effective and “druggable” targets must be validated to embark on a robust medicinal chemistry campaign culminating in the discovery of clinical candidates. Here, we review recent developments in GBM drug discovery and delivery. To identify GBM drug targets, we performed extensive bioinformatics analysis using data from The Cancer Genome Atlas project. We discovered 20 genes, BOC, CLEC4GP1, ELOVL6, EREG, ESR2, FDCSP, FURIN, FUT8-AS1, GZMB, IRX3, LITAF, NDEL1, NKX3-1, PODNL1, PTPRN, QSOX1, SEMA4F, TH, VEGFC, and C20orf166AS1 that are overexpressed in a subpopulation of GBM patients and correlate with poor survival outcomes. Importantly, nine of these genes exhibit higher expression in GBM versus low-grade glioma and may be involved in disease progression. In this review, we discuss these proteins in the context of GBM disease progression. We also conducted computational multi-parameter optimization to assess the blood-brain barrier (BBB) permeability of small molecules in clinical trials for GBM treatment. Drug delivery in the context of GBM is particularly challenging because the BBB hinders small molecule transport. Therefore, we discuss novel drug delivery methods, including nanoparticles and prodrugs. Given the aggressive nature of GBM and the complexity of targeting the central nervous system, effective treatment options are a major unmet medical need. Identification and validation of biomarkers and drug targets associated with GBM disease progression present an exciting opportunity to improve treatment of this devastating disease.
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Affiliation(s)
- Andrea Shergalis
- Department of Medicinal Chemistry, College of Pharmacy, North Campus Research Complex, Ann Arbor, Michigan (A.S., U.L., N.N.); Biostatistics Department and School of Public Health, University of Michigan, Ann Arbor, Michigan (A.B.); and Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand (U.L., N.M.)
| | - Armand Bankhead
- Department of Medicinal Chemistry, College of Pharmacy, North Campus Research Complex, Ann Arbor, Michigan (A.S., U.L., N.N.); Biostatistics Department and School of Public Health, University of Michigan, Ann Arbor, Michigan (A.B.); and Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand (U.L., N.M.)
| | - Urarika Luesakul
- Department of Medicinal Chemistry, College of Pharmacy, North Campus Research Complex, Ann Arbor, Michigan (A.S., U.L., N.N.); Biostatistics Department and School of Public Health, University of Michigan, Ann Arbor, Michigan (A.B.); and Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand (U.L., N.M.)
| | - Nongnuj Muangsin
- Department of Medicinal Chemistry, College of Pharmacy, North Campus Research Complex, Ann Arbor, Michigan (A.S., U.L., N.N.); Biostatistics Department and School of Public Health, University of Michigan, Ann Arbor, Michigan (A.B.); and Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand (U.L., N.M.)
| | - Nouri Neamati
- Department of Medicinal Chemistry, College of Pharmacy, North Campus Research Complex, Ann Arbor, Michigan (A.S., U.L., N.N.); Biostatistics Department and School of Public Health, University of Michigan, Ann Arbor, Michigan (A.B.); and Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand (U.L., N.M.)
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Wang Y, Chen X, He D, Zhou Y, Qin L. Surface-Modified Nanoerythrocyte Loading DOX for Targeted Liver Cancer Chemotherapy. Mol Pharm 2018; 15:5728-5740. [DOI: 10.1021/acs.molpharmaceut.8b00881] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Yuemin Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China
| | - Xiaomei Chen
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China
| | - Dahua He
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China
| | - Yi Zhou
- The College of Pharmaceutics Science, Guangzhou Medical University, Guangzhou, Guangdong 510436, China
| | - Linghao Qin
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China
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Bentley RT, Thomovsky SA, Miller MA, Knapp DW, Cohen-Gadol AA. Canine (Pet Dog) Tumor Microsurgery and Intratumoral Concentration and Safety of Metronomic Chlorambucil for Spontaneous Glioma: A Phase I Clinical Trial. World Neurosurg 2018; 116:e534-e542. [PMID: 29775768 DOI: 10.1016/j.wneu.2018.05.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 05/03/2018] [Accepted: 05/04/2018] [Indexed: 01/15/2023]
Abstract
OBJECTIVE Metronomic (daily low-dose) chlorambucil requires further study before use in human patients with glioma. The aim of this study was to investigate distribution and safety of metronomic chlorambucil in naturally occurring canine glioma. METHODS Eight client-owned (pet) dogs with newly diagnosed spontaneous glioma were prospectively enrolled. Chlorambucil was administered preoperatively at 4 mg/m2 every 24 hours for ≥3 days and continued postoperatively until death or dose-limiting adverse events. Chlorambucil concentrations in the surgical glioma specimen, cerebrospinal fluid, and serum were analyzed. Dogs additionally received lomustine postoperatively. Dogs were monitored for seizures, myoclonus, cytopenias, and tumor recurrence. RESULTS Complete microsurgical resection was achieved in 7 oligodendrogliomas and 1 astrocytoma (6 high grade, 2 low grade). Median surgical glioma specimen chlorambucil concentration was 0.52 ng/g (range, 0-2.62 ng/g), or 37% (range, 0%-178%) of serum concentration. Median cerebrospinal fluid concentration was 0.1 ng/mL (range, 0-0.3 ng/mL). Chlorambucil was not associated with increase in seizure activity. Six dogs displayed prolonged seizure-free intervals. There was no myoclonus. Three dogs developed asymptomatic thrombocytopenia after 8-12 months of chlorambucil. Median progression-free survival was 253 days (range, 63-860 days). Median overall survival was 257 days (range, 64-860 days). CONCLUSIONS The presence of intratumoral chlorambucil indicated an altered blood-brain barrier that varied from case to case. Despite sporadic previous reports of neurotoxicity, prolonged seizure-free intervals supported a high safety margin at this dose in this species. Metronomic chlorambucil was well tolerated. Spontaneous canine glioma offers a robust preclinical model.
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Affiliation(s)
- R Timothy Bentley
- Department of Veterinary Clinical Sciences, Purdue University, West Lafayette, Indiana, USA; Purdue University Center for Cancer Research, Purdue University, West Lafayette, Indiana, USA
| | - Stephanie A Thomovsky
- Department of Veterinary Clinical Sciences, Purdue University, West Lafayette, Indiana, USA
| | - Margaret A Miller
- Department of Comparative Pathobiology, Purdue University, West Lafayette, Indiana, USA
| | - Deborah W Knapp
- Department of Veterinary Clinical Sciences, Purdue University, West Lafayette, Indiana, USA; Purdue University Center for Cancer Research, Purdue University, West Lafayette, Indiana, USA
| | - Aaron A Cohen-Gadol
- Department of Veterinary Clinical Sciences, Purdue University, West Lafayette, Indiana, USA; Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, Indiana, USA.
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Wang X, Qi B, Su H, Li J, Sun X, He Q, Fu Y, Zhang Z. Pyrilamine-sensitive proton-coupled organic cation (H+/OC) antiporter for brain-specific drug delivery. J Control Release 2017; 254:34-43. [DOI: 10.1016/j.jconrel.2017.03.034] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 01/24/2017] [Accepted: 03/19/2017] [Indexed: 12/26/2022]
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Saha B, Haldar U, De P. Polymer-Chlorambucil Drug Conjugates: A Dynamic Platform of Anticancer Drug Delivery. Macromol Rapid Commun 2016; 37:1015-20. [PMID: 27159378 DOI: 10.1002/marc.201600146] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 04/17/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Biswajit Saha
- Department of Chemical Sciences; Polymer Research Centre; Indian Institute of Science Education and Research Kolkata; Mohanpur 741246 Nadia West Bengal India
| | - Ujjal Haldar
- Department of Chemical Sciences; Polymer Research Centre; Indian Institute of Science Education and Research Kolkata; Mohanpur 741246 Nadia West Bengal India
| | - Priyadarsi De
- Department of Chemical Sciences; Polymer Research Centre; Indian Institute of Science Education and Research Kolkata; Mohanpur 741246 Nadia West Bengal India
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Zhang W, Zhu W, He R, Fang S, Zhang Y, Yao C, Ismail M, Li X. Improvement of Stability and Anticancer Activity of Chlorambucil-Tetrapeptide Conjugate Vesicles. CHINESE J CHEM 2016. [DOI: 10.1002/cjoc.201500908] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Salem HF, Ahmed SM, Hassaballah AE, Omar MM. Targeting brain cells with glutathione-modulated nanoliposomes: in vitro and in vivo study. DRUG DESIGN DEVELOPMENT AND THERAPY 2015; 9:3705-27. [PMID: 26229435 PMCID: PMC4516201 DOI: 10.2147/dddt.s85302] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Background The blood–brain barrier prevents many drug moieties from reaching the central nervous system. Therefore, glutathione-modulated nanoliposomes have been engineered to enhance the targeting of flucytosine to the brain. Methods Glutathione-modulated nanoliposomes were prepared by thin-film hydration technique and evaluated in the primary brain cells of rats. Lecithin, cholesterol, and span 65 were mixed at 1:1:1 molar ratio. The molar percentage of PEGylated glutathione varied from 0 mol% to 0.75 mol%. The cellular binding and the uptake of the targeted liposomes were both monitored by epifluorescent microscope and flow cytometry techniques. A biodistribution and a pharmacokinetic study of flucytosine and flucytosine-loaded glutathione–modulated liposomes was carried out to evaluate the in vivo brain-targeting efficiency. Results The size of glutathione-modulated nanoliposomes was <100 nm and the zeta potential was more than −65 mV. The cumulative release reached 70% for certain formulations. The cellular uptake increased as molar percent of glutathione increased to reach the maximum at 0.75 mol%. The uptake of the targeted liposomes by brain cells of the rats was three times greater than that of the nontargeted liposomes. An in vivo study showed that the relative efficiency was 2.632±0.089 and the concentration efficiency was 1.590±0.049, and also, the drug-targeting index was 3.670±0.824. Conclusion Overall, these results revealed that glutathione-PEGylated nanoliposomes enhance the effective delivery of flucytosine to brain and could become a promising new therapeutic option for the treatment of the brain infections.
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Affiliation(s)
- Heba F Salem
- Department of Pharmaceutics and Industrial Pharmacy, Beni-suef University, Assuit, Egypt
| | - Sayed M Ahmed
- Department of Industrial Pharmacy, Assiut University, Egypt
| | - Ashraf E Hassaballah
- Department of Clinical Pathology, Faculty of Medicine, Assiut University, Assuit, Egypt
| | - Mahmoud M Omar
- Department of Pharmaceutics and Industrial Pharmacy, Beni-suef University, Assuit, Egypt ; Department of Pharmaceutics and Industrial Pharmacy, Deraya University, Egypt
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Intriguing possibilities and beneficial aspects of transporter-conscious drug design. Bioorg Med Chem 2015; 23:4119-4131. [PMID: 26138194 DOI: 10.1016/j.bmc.2015.06.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Revised: 06/02/2015] [Accepted: 06/10/2015] [Indexed: 01/11/2023]
Abstract
It has been revealed that many types of drugs interact with transporter proteins within an organism. Transporter proteins absorb or excrete materials, including drugs and nutrients, across the cell membrane. Some hydrophobic drugs are excreted from the cell as xenobiotics by ATP-binding cassette (ABC) transporters. However, solute carrier (SLC) transporters are tissue-specifically expressed and have substrate specificities. Thus, transporter-conscious drug design is an excellent method of delivering drugs to pharmaceutical target organs and provides advantages in absorption, distribution, excretion, and toxicity of drugs (ADMET) due to transport systems. In fact, based on this strategy, the bioavailability of prodrugs designed as peptide transporter 1 (PEPT1) substrates was better than that of the corresponding parent compounds due to the transport system in the small intestine. Furthermore, in central nervous system (CNS) drug developing, drug delivery into brain across the blood-brain barrier (BBB) is a serious problem. However, this problem can be also solved by the use of the transport systems at the BBB. Therefore, transporter-consciously designed drugs not only may effectively elicit activity but also may control adverse side effects caused by off-targets and drug-drug interactions and, consequently, may show good performance in clinical trials. In this review, I introduce possibilities and advantages of transporter-conscious drug designs.
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